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Kordi, Maryam. "Comparison of fuzzy and crisp analytic hierarchy process (AHP) methods for spatial multicriteria decision analysis in GIS." Thesis, University of Gävle, Department of Technology and Built Environment, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-669.
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<p>There are a number of decision making problems in which Geographical Information System (GIS) has employed to organize and facilitate the procedure of analyzing the problem. These GIS-based decision problems which typically include a number of different criteria and alternatives are generally analyzed by Multicriteria Decision Analysis (MCDA).Different locations within a geographical area represent the alternatives by which the overall goal of the project is achieved. The quality of achieving the goal is evaluated by a set of criteria which should be considered in the work. Analytic Hierarchy Process (AHP) which is a powerful method of MCDA generally can organize spatial problems and decides which alternatives are most suitable for the defined problems. However due to some intrinsic uncertainty in the method, a number of authors suggest fuzzifying the method while others are against fuzzification of the AHP.</p><p>The debate over fuzzifying AHP is going on and attempt for finding that was mostly in theory, and little, if any; practical comparison between the AHP and fuzzified AHP has done. This work presents a practical comparison of AHP and fuzzy AHP in a GIS-based problem, case study, for locating a dam in Costa Rica, considering different criteria. In order to perform the AHP and fuzzy AHP in the GIS-based problem and calculating weights of the criteria by the methods, some computer codes have written and developed in MATLAB.</p><p>The comparisons between the AHP and fuzzy AHP methods are done on result weights and on the result final maps. The comparison between the weights is repeated on different levels of uncertainty in fuzzy AHP then all the results are compared with the result of AHP method. Also this study for checking the effect of fuzzification on results is suggested Chi-Square test as a suitable tool.</p><p>Comparisons between the resulting weights of the AHP and fuzzy AHP methods show some differences between the methods. Furthermore, the Chi-Square test shows that the higher level of uncertainty in the fuzzy AHP, the greater the difference in results between the AHP and fuzzy AHP methods.</p>
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Marques, Gilvana Nogueira. "Seleção de áreas para aterros sanitários baseada em mapeamento geotécnico e Analytic Hierarchy Process - AHP." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-04102017-163803/.
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Dentre as várias técnicas de tratamento e disposição dos resíduos sólidos urbanos a disposição em aterros sanitários é a mais usada, devido ao baixo custo e relativa simplicidade operacional. No entanto, a falta de estudos para áreas adequadas é um dos principais fatores limitantes da aplicação desta técnica. É imprescindível o conhecimento dos atributos do meio-físico para avaliar as suas várias interações com o aterro sanitário. Essas interações e a variedade de atributos, dificultam a seleção do local adequado para a instalação do aterro sanitário. Diante disto, há a necessidade de uma metodologia que considere as interações, juntamente com os atributos, e se mostre eficaz na seleção do melhor local para o aterro. Propões-se aqui uma metodologia que considera 14 atributos do meio físico, referentes ao substrato rochoso, materiais inconsolidados, água e feições de relevo. Em vista da variedade de atributos, múltiplas alternativas possíveis e objetivos muitas vezes conflitantes, a serem considerados, foi aplicada a técnica de tomada de decisão denominada processo hierárquico analítico (PHA). O PHA divide um problema complexo em problemas mais simples na forma de uma hierarquia de decisão e, permitiu a obtenção do índice de adequabilidade (I.A.), que representa o valor numérico da adequabilidade de uma determinada áreas para a instalação de aterros sanitários, além de possibilitar a sua hierarquização em relação às áreas adjacentes. Esta metodologia foi aplicada na região de Araraquara, estado de São Paulo, limitada pelo paralelos 21º45\' e 22º00\' sul e meridianos 48º00\' minutos e 48º15\' minutos oeste Gr. O I.A. possibilitou o zoneamento e a classificação de unidades de combinação em favorável, moderada, severa e restritiva para a implantação de um aterro sanitário. A metodologia mostrou-se eficaz e permitiu comparar os 14 atributos de forma numérica, ao introduzir a ) técnica de tomada de decisão através do processo de hierarquia analítica. Desta forma, apresentou as vantagens de diminuir a subjetividade do processo de seleção e ponderar atributos inter-dependentes, direcionados ao objetivo de selecionar áreas para a implantação de um aterro sanitário.<br>Among several techniques for disposition and treatment of urban solid waste, sanitary landfill is the most employed, by their low cost and relative operational simplicity. However, the lack of research for suitable areas is one of the main problems to the application of this technique. It is necessary to know the attributes of the environment to assess their numerous interactions with the environment sanitary landfill. This interactions and the variety of the attributes becomes diffilcut the selection of the most suitable area to the installation of the sanitary landfill. A methodology to be effiecient in the selection of the best site to this facility, must consider the interactions and the attributes of the environment. This paper proposes a methodology which consider 14 attributes of the environment related to the rocky substrate, unconsolidated materials, water and relief. Because the variety of attributes, multiple possible alternatives and competing objectives to be consider was applied a decision support system (D.S.S.) technical named analytic hierachy process (AHP) which divides a complex problem in simpler ones in the form of a decision hierarchy. The use of AHP reaches the numerical suitability index (SI), of the areas to the installation of a sanitary landfill and becomes possible to hierarchy these areas. This methodology was applied in an area located in the Araraquara region, São Paulo state, limited by the parallels 21º45\' and 22º15\' south and meridians 48º00\' and 48º15\' West gr. The use of the suitability index (SI) permitted the zoning and ranking of the sub-areas and their classification in favorable, moderate, severe and restrictive to the installation of a sanitary landfill. The methodology to compare the 14 attributes in a numerical way by the use of the making decision technique applied to the AHP. By this way had the advantage of less subjectivity of the process of area selection and to weigh inter-dependents attributes, addressed to the objective of to select sites to the sanitary landfill.
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Nikoukaran, Jalal. "Using software to select simulation modelling packages." Thesis, Brunel University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266637.
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Ciambriello, Gianluigi, and Paolo D'Amelio. "Web Based AHP and CPC evaluation System." Thesis, Mälardalen University, School of Innovation, Design and Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-6196.
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<p><p><em>Making a decision today is quite important, especially in companies, where the consequences can bring benefits or costs. Sometimes the decisions to be made are complex and we need to evaluate many criterions that can involve several factors. In those cases, it is not easy to have a good overview of all choices and for this reason it is important to have a system that helps us in making complex decisions, when it is not possible to evaluate all the alternatives manually. This thesis describes different algorithms and tools that can aid in the process of making decisions. Based on the review of existing tools a new web based application is proposed. The new tool, Decision Maker, uses both the full Analytical Hierarchical Process approach and Chainwise Paired Comparisons method to evaluate different alternatives.</em></p></p>
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Neves, Diego Pereira 1983. "Metodo Analytic Hierarchy Process (AHP) para classificação de comedouros utilizados na produção de frangos de corte." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256943.
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Orientador: Irenilza de Alencar Naas<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola<br>Made available in DSpace on 2018-08-15T17:46:50Z (GMT). No. of bitstreams: 1
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Previous issue date: 2010<br>Resumo: As últimas 30 décadas foram marcadas por uma intensiva produção avícola, onde se alcançou um nível satisfatório de produção com a utilização de tecnologia. Estes fatos permitiram que o país se destacasse dentro de um cenário global, tornando o país o maior exportador e o terceiro maior produtor de carne de frango do mundo. Atualmente os projetos relacionados a equipamentos rurais desenvolvidos no Brasil têm sido objeto de estudo unicamente por engenheiros e técnicos, mas que poderão ser otimizados com a participação dos Designers. Este trabalho teve como objetivo comparar de três tipos de comedouros para frangos de corte sob o ponto de vista de manejo e preferência das aves, analisando as atividades comportamentais e tempo de duração das refeições das aves, além de estimar a eficiência dos equipamentos. Os comedouros avaliados foram: Tubular e Automático, ambos comercializados atualmente, e o comedouro Fênix, equipamento manual proposto por um Designer que ainda encontra-se em fase de testes. O estudo foi conduzido em um galpão comercial de frangos de corte que alojava 14 mil aves, com densidade de 16 aves m-2 aos 17, 18, 20, 21, 23 e 24 dias de idade. Utilizou-se vídeo-filmagem para o registro dos comportamentos e, a partir destas análises e de conhecimentos gerais sobre o tema, foi procedida uma avaliação, através do método AHP (Analitic Hierarchy Process), para se estimar a eficiência de cada comedouro de acordo com três tipos distintos de consumidores: C1 (produtor de pequeno porte), C2 (produtor de grande porte) e C3 (pesquisador). Os resultados apontam uma preferência das aves pelo comedouro Tubular, no qual o comportamento "comendo" e o tempo de refeição foram maiores, sendo este o único que não dispunha de uma divisória sobre o prato de alimentação, fato que pode ter sido determinante na preferência das aves. O comedouro Fênix indicou ser mais adequado ao consumidor C1 e o Automático para os consumidores C2 e C3. O Tubular ficou na terceira colocação para os três consumidores, mesmo sendo o preferido pelas aves. O comedouro Fênix apresentou características compatíveis com os concorrentes, sendo mais eficiente que o Tubular, indicando, após alguns ajustes, a possibilidade de ser fabricado<br>Abstract: The last 30 decades were marked by an intensive poultry production, which reached a satisfactory level of production with the use of technology. These facts have allowed the country to stand out in a global setting, making the country the largest exporter and third largest producer of chicken meat in the world. Currently, projects related to rural equipment developed in Brazil have been studied only by Engineers and technicians, but could be optimized with the participation of Designers. This study aimed to compare three types of feeder for broiler chickens under the standpoint of management and preference of birds, examining the behavioral and duration of birds' meals, and estimate the efficiency of the equipments. The evaluated feeders were: Tubular and Automatic, both currently marketed, and Fênix feeder, manual equipment proposed by a designer who is still undergoing tests. The study was conducted in a shed broiler commercial house that housed 14 thousand birds at a density of 16 birds m-2 at 17, 18, 20, 21, 23 and 24 days old. We used video footage to record the behavior and, based on these results and general knowledge on the subject, an assessment was preceded by the AHP (Analytic Hierarchy Process), to estimate the efficiency of each feeder in accordance with three distinct types of consumers: C1 (small producer), C2 (large producer) and C3 (researcher). The results indicate a bird's preference to the Tubular feeder, in which the behavior of "eating" and the time of meal were higher, and this is the only one that did not have a partition grid on the food plate, which may have been determinant to the birds' preference. The Fênix feeder indicated that it was more appropriate to the consumer C1 and Automatic for consumers C2 and C3. The Tubular came in third place for the three consumers, even as the favorite for birds. The Fênix feeder presented compatible characteristics with competitors, been more efficient than the Tubular indicating, after some adjustments the ability to be manufactured<br>Mestrado<br>Construções Rurais e Ambiencia<br>Mestre em Engenharia Agrícola
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Shirdastian, H., N. Towhidi, S. R. Allahkaram, and Cheraghi M. Siadat. "Ranking the Cobalt Coating Nanostructures, Produced by Direct current Through the Analytic Hierarchy Process (AHP)." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/34884.
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In recent years, cobalt coating has been known as an alternative material instead of chromium in corrosion
and erosion resistant behavior. Extensive research has been carried out on a variety of electroplated
cobalt coatings. In this study, for the first time, the relative priority of the cobalt coating has been calculated
and ranked theoretically by the Analytic Hierarchy Process (AHP). For this purpose, through the
AHP and the Expert Choice software, benefiting from expert opinions, the relative weights of the effective
parameters on achieving nanostructure coating have been calculated. Then, by using the weights obtained,
the relative priority of five available Co coatings was calculated and the quality of them was ranked.
Among available Co coatings, the coating with 5 mA/ current density, pH 3, electrolyte saccharin of
0.25 grams per liter and a temperature of 45 °C during 30 minutes, in comparing with others had more favorable
conditions for achieving nano-grain size. This shows that before experimental tests, the best alternatives
to achieve the ultimate goal could be anticipated. This anticipation leads to reduce in trial and error
and the multiplicity of the tests in investigations.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/34884
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Farago, Randal. "Proposta de melhoria para o processo DMAIC com integração do AHP: uma aplicação na operação de distribuição física de bebidas." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/96/96132/tde-20072015-170330/.
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A competitividade de uma organização e, consequentemente, sua prosperidade perante concorridos mercados, depende muito da capacidade de inovação e aprimoramento de seus produtos/serviços e processos. A procura por melhores padrões de manufatura e serviços prestados aos clientes, além das aplicações de novas técnicas gerenciais, de melhoria contínua, de otimização e de tomada de decisão, têm atraído a atenção das organizações. O esforço criativo humano deve propor abordagens de caráter competitivo, combinando ferramentas e técnicas, conhecidas ou não, a fim de melhorarem seus desempenhos. Assim, o objetivo desta tese foi propor uma estrutura analítica integrando de forma sequencial o processo de melhoria contínua DMAIC e o método de análise multicriterial para tomada de decisão Analytic Hierarchy Process (AHP), com vistas às aplicações em operações de distribuição física de bebidas. Em um primeiro momento, por meio de uma pesquisa bibliográfica, foi proposta uma estrutura geral, denominada Estrutura Analítica DMAIC/AHP, envolvendo as teorias supracitadas. Além disso, com o auxílio de um estudo de caso, foi proposta uma estrutura detalhada para a tentativa de melhoria da operação de distribuição física de bebidas em uma empresa na cidade de Ribeirão Preto. O foco esteve também na oportunidade de se obter maior conhecimento do processo em estudo e melhorar o embasamento para a tomada de decisão. A aplicação da estrutura analítica foi dividida em três fases: fase 1 - definições para o projeto de melhoria; fase 2 - condução do processo de melhoria em si; e fase 3 (denominada metafase) - responsável por monitorar/acompanhar as atividades do projeto. A aplicação em um caso real permitiu a proposta de atividades e ferramentas para entendimento e aperfeiçoamento do processo; além de alternativas de decisão frente aos problemas encontrados; deu embasamento para a tomada de decisão no momento de se implementarem as melhorias e apresentou instrumentos para manutenção e controle das alterações propostas no projeto. Um ganho evidente com a junção das teorias foi que houve um auxílio mútuo entre elas. Dessa forma, o processo de melhoria contínua DMAIC, por meio de suas etapas minuciosas de conhecimentos de processos e de causas de problemas, pôde embasar de forma robusta a definição do modelo hierárquico do AHP, desde o objetivo geral a ser atingido, passando pelos critérios de decisão, até se chegar às alternativas de decisão propostas para o processo em estudo. Por outro lado, como o DMAIC não apresenta um método de tomada de decisão atraente, o AHP pôde auxiliar na tomada de decisão multicriterial de forma mais organizada, consistente e assertiva.<br>The competitiveness of an organization and consequently its prosperity before competitive markets, depends widely on the capacity for innovation and improvement of its products/services and processes. The pursuit for better manufacturing standards and services provided to customers, in addition to the applications of new management techniques, continuous improvement, optimization and decision-making, have attracted attention of organizations. The human creative effort should propose approaches of competitive basis, combining tools and techniques, known or not, in order to improve their performance. Thus, the objective of this thesis was to propose an analytical structure integrating sequentially the process of continuous improvement DMAIC of Six Sigma and the multi-criteria analysis method for decision making Analytic Hierarchy Process (AHP), in order to apply in real cases in beverage industries. At first, through a literature search, it was proposed a general structure, called Analytical Structure DMAIC/AHP, involving the above theories. In addition, with a case study aid, it was proposed a detailed structure attempting to improve the operation of physical distribution for beverages in a company in the city of Ribeirão Preto. The focus was also on the opportunity to gain greater knowledge of the process under study and improve the foundation for decision making. The application of analytical structure was divided into three phases: phase 1 - definitions for the improvement project; phase 2 - implementation of the improvement process itself; and phase 3 (called metaphase) - responsible for monitoring/following the activities of the project. The application in a real case allowed the proposal of activities and tools for the understanding and improvement of the process, as well as possibilities for more alternatives to problems encountered; provided foundation for decision making at the time of implementing the improvements and presented tools for maintenance and control of changes proposed in the project. An obvious gain from the junction of the theories was that there was a mutual aid between them. Thus, the process of continuous improvement DMAIC, through its detailed stages of knowledge of processes and causes of problems could robustly base the definition of the hierarchical model of AHP, since the overall objective to be attained, passing through the decision criteria, until they get to the alternatives of decisions proposed for the process under study. On the other hand, as the DMAIC does not present an attractive method of decision-making, AHP could assist in multi-criteria decision making more organized, consistent and assertive.
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Jiang, Boyi. "GIS-based Multi-criteriaAnalysis Used in Forest Fire Estimation: A Case Study of Northernmost Gävleborg County in Sweden." Thesis, Högskolan i Gävle, Avdelningen för Industriell utveckling, IT och Samhällsbyggnad, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-9626.
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Fire plays an important role in forest ecosystem management depending on the dual character of it. It should be managed and supervised effectively. In this particular study, the study area was located in the north part of Gävleborg County in Sweden, which is in a high- latitude region. Seven factors, divided into natural factors and human caused factors, were extracted from digital elevation model (DEM), classified land use map and feature shape files provided by National Land Survey of Sweden (Lantmäteriet). Two different weighting schemes for the factors were determined by the Analytic Hierarchy Process (AHP) method. With the help of ArcGIS 9.3 and Erdas 9.3, two classified result maps were obtained, where forest fire risk ranks were shown as five classes, very low, low, moderate, high and very high. The 43 fire incidents in the year 2007 and 2008 recorded by Global Fire Management System were used to evaluate the results. The results show that the higher rank the region is, the larger is the probability for forest fire risk and higher the risk to spread the fire. Furthermore, according to the occurrence time of the fire incidents, the period of time from end of May to beginning of June was generalized as a dangerous period for forest fire risk in this study area. After analyzing and discussing, even if there might be some uncertainties caused by variable selection, resolution problem and weighting schemes, the results were generally reliable.
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Heinrich, Cristiano Eduardo. "Utilização do método analytic hierarchy process (AHP) para análise das estradas rurais do município de Marechal Cândido Rondon-PR." Universidade Estadual do Oeste do Paraná, 2018. http://tede.unioeste.br/handle/tede/4080.
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Previous issue date: 2018-09-06<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>Brazilian agribusiness is a sector of the economy that has historically demonstrated strength and growth, with emphasis on the agricultural sector that has been presenting production volumes and increasing productivity rates. Despite this, the exceptional competitiveness of Brazilian primary production is gradually diluted as its products leave the rural property to the subsequent links of the productive chains. The logistical obstacles faced by the national agribusiness to transport its wealth are notable, with problems such as the imbalance of the freight transport matrix, depleted transport infrastructure, insufficient static storage capacity and "bottlenecks" in the best known ports. However, little is known about another fundamental component for the logistic efficiency of agribusiness: rural roads. From the moment that the agricultural and livestock production leaves the rural property, the rural road network is the first element with potential of impact to the competitiveness of agribusiness, and few researches were undertaken with this theme. Thus, the present study aimed to investigate and describe the criteria that make a rural road suitable for the transport of inputs and agricultural production. The research was geographically delimited to the municipality of Marechal Cândido Rondon, located in the western mesoregion of the state of Paraná, because this municipality presents its economic base based on agribusiness. The methodology used was the Analytic Hierarchy Process (AHP), since it is able to measure mathematically subjective and objective attributes in a joint way, through comparisons made by individuals with knowledge of the subject matter. The methodological procedures were bibliographic research and non-systematized field survey for initial exploratory analysis, in addition to a survey to deepen the research. A total of 97 interviews were carried out with the application of a form with drivers who transport loads in the rural road network of the municipality. From the initial exploratory survey, 20 criteria potentially relevant to the adequacy of a rural road were related, and the results of the survey indicated a set of 7 priority criteria: integrity and conservation status under satisfactory conditions; track with surface coating that provides better conditions of support and trafficability, mainly asphalt paving; runway with low slope of cross section; full track without deformation; runway without loose / disaggregated materials; platform with adequate surface drainage and low intensity (volume) of traffic. It is concluded, therefore, that these are the attributes of rural roads of greater essentiality for the accomplishment of agribusiness cargo transport activities.<br>O agronegócio brasileiro é um setor da economia que historicamente tem demonstrado pujança e crescimento, com destaque para a agropecuária que vem apresentando volumes de produção e taxas de produtividade cada vez mais expressivos. Apesar disso, a excepcional competitividade da produção primária brasileira dilui-se gradualmente conforme seus produtos saem da propriedade rural com destino aos elos subsequentes das cadeias produtivas. São notáveis os obstáculos logísticos enfrentados pelo agronegócio nacional para transportar suas riquezas, sendo os problemas como o desbalanceamento da matriz de transporte de cargas, infraestrutura de transportes defasada, capacidade estática de armazenagem insuficiente e “gargalos” nos portos, os mais conhecidos. No entanto, pouco sabe-se a respeito de outro componente fundamental para a eficiência logística do agronegócio: as estradas rurais. A partir do momento que a produção agrícola e pecuária sai da propriedade rural, a malha viária rural constitui-se no primeiro elemento com potencial de impacto à competitividade do agronegócio, e poucas pesquisas foram empreendidas com essa temática. Assim, o presente estudo teve por objetivo investigar e descrever os critérios que tornam uma estrada rural adequada ao transporte de insumos e da produção agropecuária. A pesquisa foi geograficamente delimitada ao município de Marechal Cândido Rondon, localizado na mesorregião oeste do estado do Paraná, em razão deste município apresentar sua base econômica pautada no agronegócio. A metodologia utilizada foi o Analytic Hierarchy Process (AHP), pois a mesma consegue mensurar matematicamente atributos subjetivos e objetivos de maneira conjunta, por meio de comparações paritárias julgadas por indivíduos com conhecimento da temática investigada. Os procedimentos metodológicos foram pesquisa bibliográfica e levantamento de campo não sistematizado para análise exploratória inicial, além de survey para o aprofundamento da investigação. Foram realizadas 97 entrevistas com aplicação de formulário junto a motoristas que transportam cargas na malha viária rural do município. A partir do levantamento exploratório inicial, foram relacionados 20 critérios potencialmente relevantes à adequação de uma estrada rural, sendo que os resultados do survey apontaram um conjunto de 7 critérios prioritários: integridade e estado de conservação em condições satisfatórias; pista de rolamento com revestimento superficial que proporcione melhores condições de suporte e trafegabilidade, principalmente pavimentação asfáltica; pista de rolamento com pouca inclinação da seção transversal; pista de rolamento íntegra e sem deformações; pista de rolamento sem materiais soltos/desagregados; plataforma com drenagem superficial adequada e baixa intensidade (volume) de tráfego. Conclui-se portanto, que estes são os atributos das estradas rurais de maior essencialidade para a consecução das atividades de transporte de cargas do agronegócio.
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Jiadong, Zhu. "Wall Panel Optimization for Refugee Shelters in Germany: An AHP Study." TopSCHOLAR®, 2017. http://digitalcommons.wku.edu/theses/1962.
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The German government is experiencing difficulties housing and assimilating Syrian refugees in its borders. Erecting temporary shelters on location is one way to deal with the current crises. This thesis attempts to use Analytic Hierarchy Process (AHP) to determine the optimum combination of materials and construction methods to be used in the shelter’s walls in order to improve the living conditions of the refugees and to ensure that the cost is acceptable to the German government. This thesis compares six existing wall panel products from China, which have the lowest cost on the worldwide market. The R-value, strength, price, weight, durability, ease of assembly, assembly time, maintenance costs, comfort, resale value, and appearance were evaluated. Assumptions were made on what the German government would require and on standard building practices in Europe and America. The analysis indicates that the steel frame house from YONGYANG Steel best satisfies the needs in this situation. This thesis produced an AHP template, which is flexible. This model that was developed for the German scenario can be effectively applied to differing emergent situations in other parts of the world.
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Alam, Sheikh Ariful. "Evaluation of the potential locations for logistics hubs : A case srudy for a logistics company." Thesis, KTH, Transport- och lokaliseringsanalys, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-118154.
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The location of logistics hubs is one of the most crucial success factors for potential economic growth in logistics sector. Since the logistics hub has direct and indirect impacts on different stakeholders including investors, policy makers, infrastructure providers, hub operators, hub users and the community itself, it needs to be considered carefully. Therefore, logistics hubs should be located in such a way that it can provide a better accessibility to three different modes of transportation- road, rail and waterways. The aim of this study is to evaluate the potential locations for logistics hubs and to find out the criteria that affect for the selection of location for logistics hubs. A comprehensive literature study reveals the factors that are affecting the selection of location for logistics hubs and the methods to evaluate those locations considering the criteria. Location selection or evaluation is a typical multi-criteria decision making (MCDM) problem in which performance criteria plays a vital role for the final decision making. Both qualitative and quantitative MCDM methods are applied in this study, where the Analytic Hierarchy Process (AHP) is qualitative and the gravity method is quantitative method. Analytic Hierarchy Process (AHP) is a structured approach to reach the final decision which is one of the best methods of all MCDM problems, used in recent literature to evaluate the location selection problems. A case study is done for the logistics company, Brinova Fastigheter AB in Sweden. This study is followed by AHP method which is considered with selected factors, i.e. highway accessibility, intermodal capacity, port capacity and land availability. Moreover, this study is conducted by evaluating the four major potential locations in Sweden i.e. Stockholm, Göteborg, Helsingborg and Karlshamn for selecting as a logistics hub. Besides, the location for selecting logistics hubs is evaluated by the gravity method, which is a quantitative method to determine the level of accessibility for the selected locations, considering the flow of goods both inbound and outbound and the transport cost between the locations. The result from the AHP method recommend that Göteborg is the best potential location to establish logistic hub whereas the Gravity model represents that Stockholm has the highest level of accessibility for logistics activity. Therefore the study suggested that both Göteborg and Stockholm are considered to be the best potential locations considering in present situation
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Qirui, Yang. "Impacts on sustainable development of two CDM projects : A comparison using AHP method." Thesis, KTH, Industriell ekologi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-58644.
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Nowadays the mitigation of climate change and the reduction of greenhouse gases are one of the priorities in the international affairs. Clean Development Mechanism (CDM) is one of the products generated according to this request. For China, CDM brings advanced technologies in terms of energy saving and emission reduction, and driving forces for sustainable development, hereby the development of CDM projects is in full swing in China so far. However, it is not easy to decide which type of CDM projects is suitable for a certain city or region, which project contributes more to sustainable development compared with others, when it comes to several alternatives. In this case, decision-makers require a tool to help make a rational decision. As one of the approaches of assisting in making decisions, the Analytic Hierarchy Process (AHP) is able to provide assistance for decision-makers to compare the contribution of discrepant CDM projects to sustainable development. Moreover, a case study is taken between two typical CDM projects: HFC23 decomposition project and small-scale hydropower project, so as to check if AHP is useable. The result of the case study indicates that HFC23 decomposition project contributes more than small-scale hydropower plant project to sustainable development, which is not in line with China’s CDM development trend for these two projects (NCCCC, 2005), due to the different represented interests of the study group and the real decision-makers. Nevertheless, the result is rational and valid since there is nothing wrong with the AHP method and its application. In addition, in order to improve the effect of assisting in decision making, AHP was tried to be improved in three respects: impairing subjectiveness, avoiding rank reversal and improving accuracy. Even though for AHP itself, DEA/AHP approach could successfully eliminate the subjectiveness, however when it comes to this very case: compare CDM projects in terms of contribution to sustainable development in China, it cannot play an effective role. Moreover, PCA/AHP method cannot eliminate the subjectiveness at the root either. The framework method provides a possibility in theory to increase objectiveness. Two expects provided a feasible way to avoid rank reversal in their article, and the two pathways of improving results accuracy mentioned in this thesis are considered inappropriate in this case. On the other side, concerning AHP application, how to covert realistic issues to AHP structure, how to get desirable initial information, and how to avoid limitation generated by considerable criteria, sub-criteria and alternatives are considered as the difficulties which should be paid attention. In future, AHP could be applied frequently and effectively concerning providing assistance in making decisions in China, if the stakeholders as many as possible are involved in decision-making process.
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Ye, Heshan, and Jiading Wu. "Selection of a Logistics Service Provider Based on Analytic Hierarchy Process (AHP) Approach : A case study of Swedish Coffee Manufacturer—Gevalia." Thesis, Högskolan i Gävle, Avdelningen för Industriell utveckling, IT och Samhällsbyggnad, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-16621.
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Logistics outsourcing has been applied in practices by enterprises for decades, but its efficiency is always restricted because logistics service providers (LSPs) often only have a single function such as delivery or warehousing. In the last few years, LSPs have upgraded their capabilities to support some other logistics services including value-added services, materials management, information-related services etc. The purpose of this thesis is to identify the differences between self-built logistics system and outsourcing logistics system by using the Strengths Weaknesses Opportunities Threats (SWOT) strategic analysis; and figure out how to apply the Analytic Hierarchy Process (AHP) to make an appropriate selection among LSPs that based on the single-case study of Gevalia. Both quantitative and qualitative methods have been used in this study, authors expect to describe and explore the application of AHP approach regarding to the case company which implements outsourcing logistics system. Accordingly, it could be a good idea for case company to implement the mixed mode of self-built and outsourcing logistics system after using the SWOT strategic analysis. In addition, the production and logistics manager of case company emphasized that the five selection criteria including “compatibility”, “delivery performance”, “location”, “management” and “cost” should be considered as a priority among other different criterion when he selected a LSP. As a result, it will be efficient and effective for us to simulate a best decision for those industrial manufacturing enterprises to achieve a path regarding to the selection of the best logistics partner that based on the significant AHP approach.
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Pereira, Sara D?bora de Lima. "Modelagem da decis?o por pacotes de viagem: um estudo usando processo de hierarquia anal?tica AHP." Universidade Federal do Rio Grande do Norte, 2008. http://repositorio.ufrn.br:8080/jspui/handle/123456789/14877.
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Previous issue date: 2008-10-27<br>The objective of this dissertation is to propose a Multi Criteria Decision Aid Model to be used by the costumers of the travel agencies and help them to choose the best package travel. The main objective is to contribute for the simplification of the travel package decision choice from the identification of the models of values and preference of the customers and applying them to the existing package. It is used the Analytic Hierarchy Process (AHP) method to structuralize a decision hierarchic model composed by six criteria (package cost, hotel category, security of the city, travel time, direct flight and
position in ranking of the 10 most visited destination) and five real alternatives of packages for a holiday of three days created from travel agency data. The decision analysis was
realized for the choice of a travel package by a group composed by two couples that regularly travels together, to which was asked to do a pairwise judgment of the criteria and
the alternatives. The mains results show that, although been a group that travels together, there are different models of values in the weights of the criteria and a certain convergence
in the scales of preferences of the alternatives in the criteria. It was not pointed a dominant alternative for all the members of the group separately, but an analysis of a total utility of
the group shows a classification and an order of the travel packages and an alternative clearly in front of the others. The sensitivity analysis revels that there are changes in the
ranking, but the two alternatives best classified in the normal analysis are the same ones in the sensitivity analysis, although with the positions changed. The analysis also led to a
simplification of the process with the exclusion of alternatives dominated for the others ones. As main conclusion, it is evaluated that the model and method suggested allow a
simplification of the decision process in the choice of travel packages<br>O objetivo deste trabalho ? realizar uma modelagem de an?lise de decis?o multicriterial para apoio na decis?o para escolha de pacote de viagem por clientes das ag?ncias de turismos. O objetivo central ? contribuir na simplifica??o da decis?o da escolha de pacotes de viagens a partir da identifica??o dos modelos de valores e prefer?ncias dos clientes e
aplic?-los em seguida aos pacotes existentes. ? utilizado o m?todo do Processo de Hierarquia Anal?tica (AHP Analytic Hierarchy Process) para estruturar um modelo hier?rquico de decis?o composto por seis crit?rios (custo do pacote, categoria do hotel, seguran?a da cidade, tempo de viagem, v?o direto, posi??o no ranking dos 10 mais destinos) e cinco alternativas reais de pacotes para fim de semana prolongado criadas a partir de dados de ag?ncia de viagens. A an?lise de decis?o foi realizada para a escolha do pacote por um grupo composto por dois casais que viajam regularmente juntos, aos quais foi solicitado que fizessem o julgamento par a par dos crit?rios e das alternativas. Os principais resultados revelam que, embora seja um grupo que viaja junto, h? diferentes
modelos de valores nos pesos dos crit?rios e certa converg?ncia nas escalas de prefer?ncias das alternativas nos crit?rios. N?o houve uma alternativa dominante para todos os membros do grupo isoladamente, mas em uma an?lise de uma utilidade total do grupo h? uma classifica??o e ordenamento dos pacotes e uma alternativa claramente ? frente das demais. A an?lise de sensibilidade mostra que h? mudan?as nesse quadro, mas as duas mais bem classificadas na an?lise normal s?o as mesmas com a an?lise de sensibilidade, embora com mudan?a de posi??o. A an?lise levou tamb?m a simplificar o processo com a exclus?o de alternativas dominadas por todas as demais. Como principal conclus?o, avaliase que a modelagem e m?todo sugerido permitem uma simplifica??o do processo de decis?o na escolha de pacotes de viagens
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Kadioglu, Onat. "Determination Of Performance Parameters For Ahp Based Single Nucleotide Polymorphism (snp) Prioritization Approach On Alzheimers." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613775/index.pdf.
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GWAS mainly aim to identify variations associated with certain phenotypes or diseases. Recently the combined p-value approach is described as the next step after GWAS to map the significant SNPs to genes and pathways to evaluate SNP-gene-disease associations. Major bottleneck of standard GWAS approaches is the prioritization of statistically significant results. The connection between statistical analysis and biological relevance should be established to understand the underlying molecular mechanisms of diseases. There are few tools offered for SNP prioritization but these are mainly based on user-defined subjective parameters, which are hard to standardize. Our group has recently developed a novel AHP based SNP prioritization algorithm. Beside statistical association AHP based SNP prioritization algorithm scores SNPs according to their biological relevance in terms of genomic location, functional consequence, evolutionary conservation, and gene-disease association. This allows researchers to evaluate the significantly associated SNPs quickly and objectively. Here, we have investigated the performance of the AHP based prioritization as the next step in the utilization of the algorithm in comparison to the other available tools for SNP prioritization. The user-defined parameters for AHP based prioritization have been investigated and our suggestion on how to use these parameters are presented. Additionally, the GWAS results from the analysis of two different sets of Alzheimer Disease Genotyping data with the newly proposed AHP based prioritization and the integrated software, METU-SNP, it was implemented, is reported and our new findings on the association of SNPs and genes with AD based on this analysis is discussed.
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Oliveira, Julio Cezar de. "Seleção de provedores de serviços logísticos utilizando o método de decisão multicritério ahp (analytic hierarchy process): estudo de caso no setor de cargas expressas." Universidade Nove de Julho, 2016. http://bibliotecadigital.uninove.br/handle/tede/1481.
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Previous issue date: 2016-02-29<br>Outsourcing of logistics activities in the Brazil has been growing, allowing companies to direct efforts towards to their core activities and to obtain strategic gains due to the know-how of specialist companies and the possibility of reducing costs with the assets of the contracted company. Thus, tools that aid in the proper selection of suppliers can be important for the company to reach its goals. In this context, the purpose of this study is to apply the Analytic Hierarchy Process (AHP) in the evaluation process and selection of a logistics services providers (LSP) for the courier delivery services company, analyzing qualitative and quantitative criteria that express the real needs of the parties, whose aim is to improve the indicators in terms of quality and customer satisfaction. The results indicated that the information technology, responsiveness and quality of management are the most relevant criteria for the contractor because of the need of preserving the enterprise reliability front of your customers and to remain competitive in the courier delivery services area. The results also showed that the criteria and method used could contribute for classification of LSP suitable for the service in terms of deadline, demand and traceability required for operational success. A sensitivity analysis was also carried out to assess the robustness of the decision. Finally, the proposed model proved to be a good alternative to support the decision on the selection of logistics providers for express charge, since the analysis of qualitative and quantitative criteria adhering to organizational practice, can lead to choosing companies that can meet the quality requirements of the sector.<br>A terceirização das atividades logísticas no Brasil vem crescendo, permitindo as empresas a direcionar os esforços no sentido de suas atividades principais e obter ganhos estratégicos devido ao know-how de empresas especializadas e a possibilidade de reduzir os custos com os ativos da empresa contratada. Desta forma, ferramentas que auxiliem na seleção adequada de fornecedores, pode ser importante para que a empresa atinja seus objetivos. Nesse contexto, o objetivo deste estudo é investigar o uso do método de decisão multicritério Analytic Hierarchy Process (AHP) para a avaliação e seleção de provedores de serviços logísticos (PSLs) para empresas do segmento de cargas expressas analisando critérios qualitativos e quantitativos que expressam as reais necessidades das partes envolvidas, cujo intuito é melhorar os indicadores em termo de qualidade, prazo e satisfação dos clientes. Os resultados demonstraram que a tecnologia da informação, responsividade e a gestão da qualidade são os critérios mais relevantes para a contratante em razão da necessidade da preservação da confiabilidade da empresa frente a seus clientes e para manter-se competitiva no segmento de cargas expressas. Constatou-se que os critérios utilizados e o método contribuíram para a classificação de PSLs adequados para o atendimento em termos de prazo, demanda e rastreabilidade exigidos para o sucesso operacional. Uma análise de sensibilidade também foi desenvolvida para avaliar a robustez da decisão. O modelo proposto mostrou ser uma boa alternativa para apoio a decisão na seleção de fornecedores logísticos para carga expressa, uma vez que a análise de critérios qualitativos e quantitativos aderentes à prática organizacional, pode levar a escolha de empresas que possam atender as exigências de qualidade do setor.
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Silva, Flavia Cristina. "Gestão da cadeia de suprimentos verde: hierarquização das barreiras pelo método AHP em um fornecedor de primeira camada da indústria automotiva brasileira." Universidade Nove de Julho, 2016. http://bibliotecatede.uninove.br/handle/tede/1508.
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Previous issue date: 2016-03-03<br>The interface between organizations and the context in which they operate tend to give barriers to the implementation of the green supply chain management [GSCM]. The general purpose of this study was to analyze how the barriers to implementation of GSCM are prioritized by Brazilian automotive sector. Therefore, this research used a mixed methods approach, applying a systematic literature review and CVR content validation in the qualitative approach and the Analytic Hierarchy Process method [AHP] for the quantitative. The contributions of this study to the theory include the collection of forty-three literature barriers to implementing the GSCM. The model of thirteen barriers applicable to the Brazilian organizational setting, validated by technical and academic experts, in addition to the synthesis of other information relevant to research on the topic. In terms of contributions to the practice of management, from the results and their comparisons in relation to companies in other sectors located in other parts of the world, it is intended that this study drives the member companies of the automotive supply chain in developing action plans to overcome the barriers to implementation of GSCM.<br>A interface entre as organizações e o contexto em que estão inseridas tendem a originar barreiras à implementação da gestão da cadeia de suprimentos verde [GCSV]. O propósito geral deste estudo consistiu em analisar como as barreiras à implementação da GCSV são hierarquizadas pelas empresas do setor automotivo brasileiro. Para tanto, esta pesquisa utilizou a abordagem de métodos mistos, com a aplicação de revisão bibliográfica sistemática e validação de conteúdo CVR na abordagem qualitativa e o método Analytic Hierarchy Process [AHP] para a quantitativa. As contribuições deste estudo para a teoria incluem a coletânea de quarenta e três barreiras à implementação da GCSV da literatura ao modelo de treze barreiras aplicáveis ao cenário organizacional brasileiro, validado por especialistas técnicos e acadêmicos, além da síntese de outras informações relevantes para pesquisas no tema. Em termos de contribuições para a prática da Administração, a partir dos resultados alcançados e suas comparações em relação às indústrias de outros setores localizadas em outras partes do mundo, pretende-se que este estudo norteie as empresas integrantes da cadeia de suprimentos automotiva na elaboração de planos de ação para a superação das barreiras à implementação da GCSV.
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Silva, Flavia Cristina da. "Gestão da cadeia de suprimentos verde: hierarquização das barreiras pelo método AHP em um fornecedor de primeira camada da indústria automotiva brasileira." Universidade Nove de Julho, 2016. http://bibliotecatede.uninove.br/handle/tede/1649.
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Previous issue date: 2016-03-03<br>The interface between organizations and the context in which they operate tend to give barriers to the implementation of the green supply chain management [GSCM]. The general purpose of this study was to analyze how the barriers to implementation of GSCM are prioritized by Brazilian automotive sector. Therefore, this research used a mixed methods approach, applying a systematic literature review and CVR content validation in the qualitative approach and the Analytic Hierarchy Process method [AHP] for the quantitative. The contributions of this study to the theory include the collection of forty-three literature barriers to implementing the GSCM. The model of thirteen barriers applicable to the Brazilian organizational setting, validated by technical and academic experts, in addition to the synthesis of other information relevant to research on the topic. In terms of contributions to the practice of management, from the results and their comparisons in relation to companies in other sectors located in other parts of the world, it is intended that this study drives the member companies of the automotive supply chain in developing action plans to overcome the barriers to implementation of GSCM.<br>A interface entre as organizações e o contexto em que estão inseridas tendem a originar barreiras à implementação da gestão da cadeia de suprimentos verde [GCSV]. O propósito geral deste estudo consistiu em analisar como as barreiras à implementação da GCSV são hierarquizadas pelas empresas do setor automotivo brasileiro. Para tanto, esta pesquisa utilizou a abordagem de métodos mistos, com a aplicação de revisão bibliográfica sistemática e validação de conteúdo CVR na abordagem qualitativa e o método Analytic Hierarchy Process [AHP] para a quantitativa. As contribuições deste estudo para a teoria incluem a coletânea de quarenta e três barreiras à implementação da GCSV da literatura ao modelo de treze barreiras aplicáveis ao cenário organizacional brasileiro, validado por especialistas técnicos e acadêmicos, além da síntese de outras informações relevantes para pesquisas no tema. Em termos de contribuições para a prática da Administração, a partir dos resultados alcançados e suas comparações em relação às indústrias de outros setores localizadas em outras partes do mundo, pretende-se que este estudo norteie as empresas integrantes da cadeia de suprimentos automotiva na elaboração de planos de ação para a superação das barreiras à implementação da GCSV.
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Masotto, Nicola. "La valutazione ambientale nelle trasformazioni territoriali in ambito alpino: applicazione del Metodo AHP." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3423142.
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The activities carried out for this research have been developed following a methodological pathway that starts from a cultural question, i.e which planning "strategies" can be adopted in an alpine geographic area undergoing high depopulation trends despite a certain degree of economic maturity, such as in the case of Belluno province.
To this end, all possible "policies" have been analysed with the goal to change this criticality, starting from the consideration that the geographical isolation of this territory is caused by the absence of an alpine road pass to the North and the infrastructural deficit of the whole Province.
The main issues addressed are listed here below:
• Accessibility, to understand how it can influence territorial disparities;
• The social demands of the territory of Belluno Province with reference to the accessibility to the North;
• The transport scenarios that are being strategically developed in relation to national and international connections (those we could define as "new communication strategies");
• The elaboration and application of a new evaluation model as a decision support, called Analytic Hierarchy Process (AHP), within a process of Strategic Environmental Assessment (SEA).
In particular, the last aspect has been developed by identifying an evaluation model, among the many others in literature, which could ensure a better effectiveness of the SEA process, a general method to evaluate the sustainability of programming processes (as the "policies" of territorial development) and planning.
In this sense the AHP has been considered, and it has been developed not only to test its effectiveness as an evaluation instrument, able to produce important results to support decisions, but also to verify whether this model can be used in the general SEA process.
This experimentation of integrating the AHP model into the SEA has thus shown that the AHP can increase the effectiveness of the SEA (if the AHP model is applied during the ex ante stage of the SEA), by improving its strategic significance, in the sustainability checks of large-scale planning and programming actions.<br>Le attività condotte ai fini di questa ricerca sono state sviluppate seguendo un percorso metodologico che parte da un quesito di carattere culturale, ovvero quali "strategie" pianificatorie si possono adottare in un ambito geografico alpino oggetto di un elevato fenomeno di spopolamento, nonostante una certa maturità economica, come il caso della provincia di Belluno.
A tal fine sono state indagate le possibili "politiche" da sviluppare per modificare tale criticità, partendo dalla constatazione che l'isolamento geografico di questo territorio è causato dall'assenza di un valico alpino a Nord e dal deficit infrastrutturale dell'intera provincia.
I temi affrontati sono i seguenti:
• l'accessibilità, per comprendere quanto essa possa influire sulle sperequazioni territoriali;
• le domande sociali del territorio bellunese interessate al tema dell'accessibilità verso Nord;
• gli scenari trasportistici che si stanno configurando a livello strategico riguardo alle connessioni nazionali ed internazionali (ossia quelle che potremmo definire come "nuove geografie delle comunicazioni");
• la costruzione e l'applicazione di un modello di valutazione di supporto alle decisioni, denominato Analytic Hierarchy Process (AHP), all'interno di un processo di Valutazione Ambientale Strategica (VAS).
L'ultimo aspetto, in particolare, è stato sviluppato individuando un modello valutativo, tra i molti presenti in letteratura, che permettesse di migliorare l'efficacia del processo di VAS, metodo generale per valutare la sostenibilità dei processi programmatori (come le "politiche" di sviluppo territoriale) e pianificatori.
In questo senso si è posta l'attenzione sull'AHP che è stata sviluppata non solo per testarne l'efficacia come strumento valutativo, ovvero capace di fornire risultati significativi nel supporto alle decisioni, ma anche per verificare se detto modello può essere collocato nel generale processo di VAS.
Tale sperimentazione di integrazione del modello AHP nella VAS, ha quindi permesso di dimostrare che l'AHP può rendere maggiormente efficace la VAS (se il modello AHP viene applicato nella fase ex ante della VAS), aumentandone il significato strategico, nella verifica della sostenibilità di azioni pianificatorie e programmatorie a scala vasta.
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Magalhães, Ana Paula de Souza. "Logística reversa de eletrodomésticos da linha branca: processo de escolha pelo Método de Análise Hierárquica (AHP)." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/18/18144/tde-17062011-171728/.
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O objetivo deste estudo é apontar o eletrodoméstico da linha branca que provavelmente pode sofrer reprocesso mais facilmente quando atinge seu efetivo fim do ciclo de vida útil, por ser julgado prioritário entre as variáveis de um canal de distribuição reverso. Para tanto, utilizou-se os conceitos da logística reversa juntamente com a aplicação do Método de Análise Hierárquica, modelo multicritério que deriva uma escala de prioridades a partir do julgamento subjetivo de especialistas. O estudo justifica-se pela necessidade de evitar que uma disposição final inadequada ocorra, devendo os bens de pós-consumo duráveis, categoria à qual os eletrodomésticos da linha branca pertencem, serem reintroduzidos na cadeia produtiva, para que os mesmos não resultem em resíduos sólidos descartados no meio ambiente e os recursos naturais sejam poupados. O método consiste na formulação e aplicação do Método de Análise Hierárquica a vinte especialistas de diferentes áreas. No processo de aplicação considerou-se a consistência dos julgamentos, para que o resultado final obtido se aproximasse ao máximo de uma situação real. Após tratamento dos dados, verificou-se que o refrigerador foi considerado o eletrodoméstico da linha branca prioritário para retornar aos locais de reprocesso através do canal de distribuição reverso, atingindo 70% da preferência nos vinte julgamentos, ou seja, o refrigerador foi a alternativa de decisão julgada prioritária por 14 especialistas. O resultado da análise conjunta apontou que o refrigerador obteve importância de 37,07%, seguido por microondas com importância de 23,73%, lavadora de roupas com importância de 21,37% e fogão com importância de 17,83%.<br>The aim of this study is to point the white line appliance that can easier undergo reprocessing when it reaches the end of its effective life cycle, by the priority among the variables of a reverse distribution channel. We used the concepts of reverse logistics with the Analytic Hierarchy Process, multicriteria model that derives a range of priorities from the subjective judgments of specialists. The study is justified by the avoidance of the improper final disposal of these kind of products, and the assets of post-consumer durable category that white goods belong to be reintroduced in the production chain, so that they do not result in solid waste discard in the environment and the natural resources are spared. The method consists by the formulation and application of Analytic Hierarchy Process to twenty specialists from different areas. During the implementation process the consistency of judgments were considered so that the final result would be closer to a real situation. After processing, it was found that the refrigerator was the priority appliance to return to reprocessing sites through reverse distribution channel, reaching 70% preference in the twenty trials, i.e., the refrigerator was the alternative priority decision judged by fourteen experts. The result of the combined analysis showed that the refrigerator achieved importance of 37.07%, followed by microwave importance of 23.73%, washing machines with the importance of 21.37% and the stove with importance of 17.83%.
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Palma, Janaina Barrios. "Avaliação integrada em diferentes escalas dos atributos que controlam a dinâmica das águas: aplicação para análise de risco de contaminação das águas subsuperficiais na região entre São Carlos e Ribeirão Preto." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-04102017-144907/.
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O trabalho avalia a importância dos atributos que afetam a dinâmica da água subsuperficial, em 4 níveis de escala, para a região entre São Carlos e Ribeirão Preto, nordeste do Estado de São Paulo. A área é constituída, principalmente, por arenitos da formação Botucatu e basaltos da formação Serra Geral, recobertos por materiais inconsolidados, com espessura variando de 1 a 20 m. O estudo na escala 1:100.000 considerou 27 atributos, incluindo características dos materiais geológicos, geomorfologia, precipitações e fontes de contaminação. A técnica AHP (Analytic Hierarchy Process) foi utilizada para determinar o potencial relativo em termos de contaminação das águas subsuperficiais. Os resultados indicaram que o risco atual de contaminação das águas subsuperficiais é relativamente baixo, devendo ser analisado com maior detalhe para algumas bacias consideradas de risco mais acentuado. Foram realizados levantamentos em escala 1:10.000 e 1:20.000 para as bacias hidrográficas do córrego do Vaçununga (cidade de Luis Antônio) e Ribeirão do Tamanduá (próximo às cidades de Cravinhos e Serrana), respectivamente. Estas bacias foram selecionadas a partir do estudo em escala 1:100.000 devido as suas características ambientais. Foram selecionados 12 cenários de chuvas para avaliar a relação entre infiltração e escoamento superficial utilizando os modelos de infiltração de Morel - Seytoux & Khanji (1976) e Chu (1978). Os valores de descarga nos exutório e análise de recessão nestas bacias foram medidos por 2 anos. A bacia hidrográfica do córrego do esgoto (próximo a Ribeirão Preto) foi selecionada para a modelagem numérica (escala 1:1.000) por apresentar o maior índice potencial ao evento de contaminação das águas subsuperficiais na escala 1:100.000. A modelagem auxiliou na definição da direção do fluxo e indicou tendências de migração dos contaminantes oriundos do lixão instalado nesta bacia (modelagem de fluxo e de transporte).<br>This work presents the results obtained from integrated assessment of the attributes related to groundwater dynamic in 4 scales in the São Carlos and Ribeirão Preto region, northeast of State of São Paulo, Brazil. This area is constituted of sandstones of the Botucatu formation and basalt of the Serra Geral formation. Unconsolidated materials cover these rocks with thickness varying from 1 to 20 m. For 1:100.000 scale were considered 27 attributes of the geological materials, geomorphology, rainfall and pollutant sources. The AHP method (Analytic Hierarchy Process) was used to determine the relative degree in terms of groundwater contamination potential. The results show that the risk level for groundwater contamination is predominately low, and few basins are classified with high risk level. Studies were developed in 1:20.000 and 1:10.000 scales for córrego do Vaçununga (city of Luis Antônio) and ribeirão do Tamanduá (near to cities of Cravinhos e Serrana) basins, respectively. These basins were selected from the study in 1:100.000 scale due to environmental characteristics. It were considered 12 rainfall scenarios to evaluate the infiltration and overland flow rates using the Morel - Seytoux & Khanji (1976) and Chu (1978) model\'s, and recession and discharge rates were measured for 2 years. The córrego do esgoto basin (next to city of Ribeirão Preto) was selected for numerical modelling at 1:1.000 scale to simulate the groundwater flow and contaminantplumes, because it presented highest risk level in the 1:100.000 study.
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Toso, Milton Ramos. "Proposta para configuração de operação logística em centros de distribuição." Universidade Federal de São Carlos, 2014. https://repositorio.ufscar.br/handle/ufscar/3822.
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Previous issue date: 2014-03-20<br>The main purpose of this dissertation is to propose a methodology framework using multicriteria decision-making method, Analytic Hierarchy Process (AHP), to define the configuration of logistics operations at the distribution centers in the Brazilian retail market. This framework is based on an approach in which the choice of operational alternatives used in the internal activities of a distribution center (receiving, storage, picking and shipping) depend on the distribution strategy as well as the attributes and requirements of the business environment of the company. In order to develop this work, a bibliographic research has been performed in the following fields: logistics and distribution strategy, functions, activities and management of distribution centers and decision-making. It has been carried out interviews in the research field with the high management representatives from large logistics providers with the aim of determining which business requirements might be considered in the approach. The interviews have been also important to determine the preferences and weights to the attributes used for decision-making. The proposed framework has been also used in a case study in order to validate the attributes and has served too as a basis to compare the preferences of the managers of the logistic providers and of the manager of the studied company, regarding the configuration of the logistic operations. This framework has been validated, the preferences among decision makers have been similar, except at the weight between the attributes of operational and investment costs. In general, this framework has validated the results and has proved to be a useful tool to support decision-making process in a real situation and also has generated scenarios and sensitivity analysis to the decision maker.<br>O objetivo geral desta dissertação é propor uma estrutura metodológica utilizando um método de tomada de decisão multicritério, o Analytic Hierarchy Process (AHP), a fim de configurar a operação logística em centros de distribuição que atende o mercado varejista brasileiro. Esta estrutura está baseada em uma abordagem na qual a escolha das alternativas operacionais utilizadas nas atividades internas de um centro de distribuição (recebimento, armazenagem, separação e expedição) depende da estratégia de distribuição, bem como dos atributos e requerimentos de negócio do ambiente da empresa. Para o desenvolvimento deste trabalho foi realizada uma pesquisa bibliográfica relacionada à estratégia de distribuição, funções, atividades e gerenciamento de centros de distribuição, e, à abordagem de tomada de decisão. Na pesquisa de campo foram realizadas entrevistas com representantes da alta gerência de grandes operadores logísticos com a finalidade de determinar quais os requerimentos de negócio que deveriam ser considerados na configuração. As entrevistas também foram importantes para determinar as preferências e os pesos dos atributos utilizados para a tomada de decisão. A proposta de configuração foi ainda utilizada em um estudo de caso como meio de validação dos atributos e serviu, também, de base de comparação entre as preferências dos gestores de operadores logísticos e do gestor da empresa estudada, no tocante à configuração das operações logísticas. A aplicação da proposta de configuração foi validada e as preferências entre todos os decisores foram parecidas, exceto no peso entre os atributos de custo operacional e investimento. No geral, a proposta de configuração validou os resultados e se mostrou útil como uma ferramenta de suporte na tomada de decisão em uma situação real, além de permitir a geração de cenários e análises de sensibilidade para o tomador de decisão.
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Vaclavik, Marcia Cristiane. "Proposta de um modelo de avaliação de prestadores de serviços logísticos utilizando o AHP : o caso de uma indústria de motores." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/31773.
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É consenso entre estudiosos e práticos que a Logística desempenha um importante papel na integração da Cadeia de Suprimento dos mercados. Num ambiente cada vez mais competitivo, as organizações procuram práticas de negócios e soluções que possam ajudá-las na busca pelo sucesso. Uma dessas práticas é a terceirização das funções logísticas, através da contratação de empresas especializadas, de forma que as organizações contratantes possam se concentrar no foco do seu negócio, aumentando sua eficiência, melhorando a utilização dos recursos, reduzindo os custos de transporte, reestruturando sua cadeia de suprimentos e aumentando sua lucratividade. Nesse cenário, onde a crescente participação dos prestadores de serviços logísticos (ou, PSLs) torna-se fator estratégico para o crescimento das organizações através de alianças cada vez mais complexas, surge a necessidade de mecanismos de avaliação de desempenho que, efetivamente, reflitam a integração e a flexibilidade dos recursos envolvidos. Assim, o presente estudo se propôs a desenvolver um modelo de avaliação de desempenho de PSLs, através da metodologia da Pesquisa Operacional, apoiado pelo método AHP. A empresa escolhida para a aplicação do modelo foi a MWM International Motores – MIM – e o modelo foi aplicado no processo de transporte nacional que atende o mercado de reposição de peças. Foram avaliados 5 PSLs, através de 3 critérios e 13 atributos, qualitativos e quantitativos. Como principais resultados, verificou-se que a sistemática adotada foi aderente ao ambiente analisado, auxiliando no processo de avaliação e permitindo que a empresa possa estimular seus prestadores de serviços logísticos a melhorar seus processos e o produto destes processos – o próprio serviço prestado, traçando, juntamente com os seus parceiros, um plano de melhoria contínua que vise alcançar resultados melhores para a ambas empresas.<br>There is consensus among scholars and practitioners that Logistics plays an important role in the integration of the market’s Supply Chain. In an increasingly competitive environment, organizations seek solutions and business practices that can help them in their quest for success. One such practice is the outsourcing of logistics operations through the recruitment of specialized firms, so that the contracting organizations can focus on their business, increasing efficiency, improving resource utilization, reducing transportation costs, restructuring their supply chain and increasing their profitability. In this scenario, where the increasing participation of logistics service providers, known as 3PL (third-party logistics providers) becomes a strategic factor for the growth of organizations through increasingly complex alliances, a need arises for performance evaluation mechanisms that effectively reflect the integration and flexibility of the involved resources. Thus, the present study aims to develop a model to evaluate the performance of 3PLs using the methodology of operational research, supported by the AHP method. The company chosen to implement the model was MWM International Motores (MIM) and the model was applied in the national transport of the spare parts process. There were 5 LSPs evaluated using 3 criteria and 13 attributes, both qualitative and quantitative. The main results showed that the adopted system was considered adherent to the environment, assisting in the evaluation process, and allowing the company to encourage its 3PLs to improve their processes and products - the very service provided, mapping, together with its partners, a plan for continuous improvement aimed at achieving better results for both companies.
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LIMA, Josilene Pereira. "Modelagem analítica da eficácia do gerenciamento costeiro integrado através de análise multicritério." UNIVERSIDADE FEDERAL DE PERNAMBUCO, 2015. https://repositorio.ufpe.br/handle/123456789/15055.
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Previous issue date: 2015-03-10<br>CAPES<br>A gestão integrada da zona costeira (do inglês Integrated Coastal Zone Management – ICZM) envolve uma abordagem integrada de elementos naturais e antrópicos e deve ser organizada para minimizar os conflitos e utilizar os recursos de forma sustentável. O gerenciamento costeiro integrado pode ser considerado como um processo administrativo permanente onde as ações tomadas, podem ou não serem eficazes para uma comunidade, um estuário ou a costa de uma nação inteira. A partir da definição sobre ICZM e demais legislações brasileiras foram identificadas algumas possíveis variáveis para fazer parte de um modelo de avaliação da eficácia do gerenciamento costeiro integrado. A avaliação da eficácia foi determinada pela análise multicritério através do método Analytic Hierarchy Process – AHP, considerando níveis hierárquicos distribuídos em critérios sociais, econômicos e ambientais, totalizando 11 variáveis. Os critérios para estabelecer os pesos entre as variáveis, foram estabelecidos através de um questionário aplicado a um especialista em gerenciamento costeiro. A saída deste modelo representa um valor numérico, considerando a variação entre 0,000 e 1,000, onde a medida que a nota aumenta melhores são as condições associadas a gestão costeira integrada. Após desenvolvido o modelo analítico, dados amostrais considerando informações espaciais obtidas por sensoriamento remoto e estatísticas obtidas pelo censo do IBGE (2000 e 2010) foram aplicadas ao município da Ilha de Itamaracá-PE. Os resultados numéricos encontrados para este estudo de caso foram 0,344 e 0,401 para os anos de 2000 e 2010 respectivamente. Para analisar os resultados foram considerados um limiar mínimo e máximo da eficácia do gerenciamento costeiro integrado tendo como referência informações das variáveis encontradas para os municípios pertencentes a zona costeira de Pernambuco onde foram obtidos os valores 0,279 e 0,650 representando a variação mínima e máxima encontrada para este Estado. Por fim uma análise separada de cada variável foi efetuada através da construção de mapas temáticos e comparações de informações numéricas identificando assim, o comportamento individual de cada variável no modelo analítico. Destaca-se que a aplicação do método de avaliação multicritério AHP para este estudo de análise da eficácia do gerenciamento costeiro integrado demonstrou ser uma importante ferramenta para diagnosticar e fornecer subsídios à tomada de decisão em ambientes costeiros.<br>The Integrated Coastal Zone Management (ICZM) involves an integrated approach of natural and anthropic elements and it should be organized to minimize conflicts and apply resources in a sustainability way. The integrated coastal management can be considered as a permanent administrative process where the actions taken, may or may not be effective for a community, an estuary or the coast of an entire nation. From the definition of ICZM and other Brazilian laws was identified a number of possible variables to be part of an evaluation model for the effectiveness of integrated coastal zone management. The efficacy was determined by multi-criteria analysis using the method Analytic Hierarchy Process - AHP considering hierarchical levels distributed in social, economic and environmental criteria, a total of 11 variables. The criteria for establishing the weights between variables were established through an inquiry requested to a specialist in coastal management. The output of this model is a numerical value, considering the variation between 0.000 and 1.000, with the increasing of this score represents a better condition related to integrate coastal zone management. After the analytical model developed, sample data considering spatial information obtained by remote sensing and statistics obtained by the IBGE (Brazilian Institute of Geography and Statistics) census (2000 and 2010) were applied to the municipality of Itamaracá Island - PE. The numerical results for this case study were 0.344 and 0.401 for the years 2000 and 2010 respectively. To analyse the results were considered a minimum and maximum threshold of ICZM effectiveness having as reference information found for the variables considering all Pernambuco coastal zone municipalities, were was obtained 0.279 and 0.650 representing the minimum and maximum variation found for this state. Finally a separate analysis of each variable was performed by building thematic maps and numerical comparisons identifying the behaviour of each variable in the analytical model. It is noteworthy that the application of multi-criteria evaluation method AHP for this study case using ICZM effectiveness has proven to be an important tool to diagnose and provide subsidies to decision making in coastal environments.
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Reisdörfer, Marcelo. "Utilização da AHP e controle estatístico do processo na avaliação de módulos de irrigação por gotejamento." Universidade Estadual do Oeste do Parana, 2013. http://tede.unioeste.br:8080/tede/handle/tede/182.
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Previous issue date: 2013-11-07<br>This paper shows the studied results of uniformity evaluation in 23 irrigation modules tracked by gravity in familiar farms in Salto do Lontra city / PR from 2009 to 2013. Uniformity coefficients (UC, UD, UE and ) and CEP plus the decision support AHP method were applied in this trial in order to evaluate the whole drip irrigation project. The results obtained by the uniformity coefficients indicated that the irrigation modules remained stable during the studied period. There was no significant variation from one period to another, with values of 85 and 86% for UC, so that for UD the answers were 78 and 80%; for UE, the results were 57 to 59% and for , the values ranged from 0.19 to 0.17. The Shewhart charts for individual measures, concerning the statistical control of the process, could show the special causes at each point. While, the and indices indicated that the irrigation modules met the quality control specifications and were considered "acceptable" and centralized by Montgomery requirements (2004). Regarding the use of multicriteria decision support method AHP (Analysis Hierarchic Process), it proved to be effective during the evaluation of irrigation projects. It weighted different criteria according to the perspective of a project classification as "Excellent", "Good", "Fair" and "Poor". Thus, in this trial, the AHP method rated as "excellent" the irrigation project, which was implemented in Salto do Lontra city/ PR based on both analyzed periods, whose values of consistency ratio (CR) were 0 and 0.02 from 2009 to 2010 and from 2011 to 2013<br>Este trabalho apresenta os resultados da avaliação da uniformidade em 23 módulos de irrigação localizados por gravidade em propriedades agrícolas de base familiar no Município de Salto do Lontra/PR, no período de 2009 a 2013. Neste trabalho, foram aplicados os coeficientes de uniformidade (UC, UD, UE e ) e CEP, juntamente com o método AHP de apoio à decisão para avaliar o projeto de irrigação por gotejamento na sua totalidade. Os resultados obtidos pelos coeficientes de uniformidade apontaram que os módulos de irrigação se mantiveram estáveis durante o período avaliado, não havendo variação significativa de um período para outro, com valores de UC de 85 e 86%, UD de 78 e 80%, UE de 57 e 59%, e de 0,19 e 0,17. Quanto ao controle estatístico de processo, os gráficos de Shewhart para medidas individuais foram capazes de mostrar pontualmente as causas especiais, e os índices e indicaram que os módulos de irrigação atenderam as especificações do controle de qualidade, sendo considerados ―aceitáveis‖ e centralizados pelos requisitos de Montgomery (2004). Quanto ao uso do método multicritério de apoio à decisão AHP (Análise Hierárquica de Processo), este se mostrou eficaz na avaliação de projetos de irrigação ponderando diferentes critérios sob a ótica da classificação do projeto em ―Excelente‖, ―Bom‖, ―Regular‖ e ―Ruim‖. Nesta pesquisa, o método AHP classificou como ―Excelente‖ o projeto de irrigação implantado no Município de Salto do Lontra/PR para os dois períodos analisados, com valores de razão de consistência (RC) de 0 e 0,02 para o período de 2009 a 2010 e 2011 a 2013
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Gori, Rodrigo Soares Lelis. "Modelo de distribuição de recursos orçamentários baseado em indicadores de desempenho para um instituto federal de educação, ciência e tecnologia." Universidade do Vale do Rio dos Sinos, 2016. http://www.repositorio.jesuita.org.br/handle/UNISINOS/5599.
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Previous issue date: 2016-07-15<br>Nenhuma<br>As Instituições Federais de Ensino buscam, constantemente, implementar avanços em um de seus principais instrumentos de planejamento e controle, o orçamento público anual. Em vista da natureza e das características especiais destas instituições, o seu processo orçamentário se reveste de especificidades e exige estudos e análise para melhor compreensão desse fenômeno. Surge, então, como um instrumento de auxílio na gestão orçamentária a avaliação de desempenho através de indicadores. A pesquisa avança para a proposição de um modelo que melhor trate o objeto deste estudo. Logo, para a realização deste trabalho, foi utilizada a DSR como método de pesquisa, apoiada pelo método AHP. Assim, o presente estudo se propôs a desenvolver um modelo de distribuição de recursos orçamentários, baseado em indicadores de desempenho para as unidades de ensino que compõem um Instituto Federal de Educação, Ciência e Tecnologia. A instituição escolhida localiza-se na região Norte. O modelo proposto foi aplicado no processo de distribuição de orçamento para oito unidades que compõem a referida instituição, adotando dois critérios, número de discentes regularmente matriculados e a avaliação de indicadores de desempenho. Três etapas integradas entre si, mas com finalidades diferentes estruturam o modelo proposto. A primeira etapa do modelo consiste na avaliação dos indicadores de desempenho, por meio do método AHP, indicadores estes selecionados por um grupo de nove especialistas. A segunda etapa consiste na obtenção de uma pontuação para cada unidade de ensino da instituição pesquisada, de acordo com a avaliação dos indicadores de desempenho. A terceira e última etapa consiste na definição de um peso para cada unidade de ensino para aplicação no orçamento de 2016 da instituição. Como principal resultado, verificou-se que o modelo proposto, quando comparado com o modelo atual, imprime uma nova postura no processo orçamentário da instituição, implementando mecanismos que permitem valorizar o esforço acadêmico de suas unidades através do uso dos indicadores de desempenho, proporcionando uma equalização entre as unidades que compõem a instituição.<br>Federal Education Institutions constantly seek to implement advances in one of their main planning and control tools, which is the annual public budget. Due to their nature and special features the institutions’ budget process is very specific, so it demands studies and analysis in order to better understand this phenomenon. As a result of this, and like an aid in budget management, arises the performance evaluation through indicators. The research goes forward for the proposition of a model that better addresses the subject of this study. So, to accomplish this work, it was used the DSR (Design Science Research) as the research method which was supported by AHP (Analytic Hierarchy Process). Thus, the present study had as its proposal to develop a distribution model of budget resources, based on performance indicators for the teaching units that comprise a Federal Institute of Education, Science and Technology. The chosen institution is located in the North of Brazil. The proposed model was applied on the budget allocation process in eight units that are part of the institution mentioned above. Two criteria were adopted: the number of enrolled students and the performance indicators evaluation. Three integrated steps, but with different purposes, have structured the proposed model. The first step consists in the performance indicators evaluation, through the AHP method; such indicators were selected by a group of nine experts. The second step consists in obtaining a score for each teaching unit of the researched institution, according to the assessment of performance indicators. The third and final step consists in defining a weight for each teaching unit for using in the 2016 budget of the institution. As the main result, it was found out that the proposed model, when compared to the current one, presents a new approach in the institution budget process, implementing tools that enhance the academic effort of its units by using the performance indicators, providing equalization between the units that comprise the institution.
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Pettersson, Johan, and Robin Veteläinen. "A comparison of solutions to measure Quality of Service for video streams." Thesis, KTH, Data- och elektroteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-188514.
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There are more and more people watching video streams over the Internet, and this has led to an increase in companies that compete for viewers. To improve the users experience, these companies can measure how their services are performing. The aim of this thesis was to recommend a way to measure the quality of service for a real time video streaming service. Three methods were presented; to buy the information from a content delivery network, extend existing analytics software or build a custom solution using packet sniffing. It was decided to extend existing analytics software. An evaluation was made on which software to extend. Four solutions were compared: Google Analytics, Mixpanel, Ooyala IQ and Piwik. The comparison was made using the analytic hierarchy process, comparing each alternative in their performance in criteria such as API maturity, flexibility, visualization and support. The recommended software to extend when building a real time video streaming service is Ooyala IQ which excel at flexibility and is easy to implement into existing solutions. It also had great capacity, offering no limit on how many events it can track per month, and finally it offers great dedicated support via telephone or email.<br>Det finns fler och fler personer som tittar på video strömmar på Internet, detta har lett till att nya företag har startats som konkurerar om tittare. För att förbättra kundupplevelsen kan man mäta hur tjänsten presterar. Målet med examensarbetet var att rekommendera hur man kan mäta tjänstekvalite för en realtidsvideoströmningstjänst. Tre olika lösningsförslag presenterades; att köpa informationen från en content delivery network, att bygga vidare på tillgängliga analytisk mjukvara eller att bygga ett eget paketsniffarprogram. Det bestämdes att bygga vidare på tillgänglig analytisk mjukvara. Fyra olika mjukvara jämfördes: Google Analytics, Mixpanel, Ooyala IQ och Piwik. Jämförelsen gjordes med hjälp av analytical hierarchy process, de olika alternativen jämfördes med avseende på: hur moget API:et var, flexibilitet, visualiseringen av data och support. Rekommendationen är att använda sig av Ooyala IQ som utmärker sig med avseende på flexibilitet, det var enkelt att använda deras API i sin egen lösning, det fanns ingen gräns på hur många händelser man kunde lagra per månad, och slutligen så fanns det dedikerad supportpersonal att nå via telefon eller email.
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Hjalmarsson, Victoria. "Machine learning and Multi-criteria decision analysis in healthcare : A comparison of machine learning algorithms for medical diagnosis." Thesis, Mittuniversitetet, Avdelningen för informationssystem och -teknologi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-33940.
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Medical records consist of a lot of data. Nevertheless, in today’s digitized society it is difficult for humans to convert data into information and recognize hidden patterns. Effective decision support tools can assist medical staff to reveal important information hidden in the vast amount of data and support their medical decisions. The objective of this thesis is to compare five machine learning algorithms for clinical diagnosis. The selected machine learning algorithms are C4.5, Random Forest, Support Vector Machine (SVM), k-Nearest Neighbor (kNN) and Naïve Bayes classifier. First, the machine learning algorithms are applied on three publicly available datasets. Next, the Analytic hierarchy process (AHP) is applied to evaluate which algorithms are more suitable than others for medical diagnosis. Evaluation criteria are chosen with respect to typical clinical criteria and were narrowed down to five; sensitivity, specificity, positive predicted value, negative predicted value and interpretability. Given the results, Naïve Bayes and SVM are given the highest AHP-scores indicating they are more suitable than the other tested algorithm as clinical decision support. In most cases kNN performed the worst and also received the lowest AHP-score which makes it the least suitable algorithm as support for medical diagnosis.
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Pereira, Guilherme Vaz. "ABORDAGEM MULTICRITÉRIOS PARA ADAPTAÇÃO DE PROCESSOS DE SOFTWARE BASEADA EM SITUATIONAL METHOD ENGINEERING." Universidade Federal de Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/5402.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Software development organizations are involved in different scenarios with distinct
projects in relation to specific project characteristics and demands. There isn´t a software
process model appropriate for all projects and/or organizations. The best process depends of
the project context. Situational Method Engineering (SME) proposes the building of specific
software development methods for each project according to its situational characteristics
from method fragments stored in a repository. This work proposes a systematic approach for
building a specific development software process for each project through tailoring process
based on SME concepts, called OSPTA Octopus SME Process Tailoring Approach. OSPTA
uses stored method fragments which include practices recommended by agile and planned
process. These fragments are retrieved according to one or more tailoring criteria (tailoring
process requirements) and are prioritized from contextual factors defined by Octopus Model.
The technique used for this prioritization is Analytic Hierarchy Process (AHP) technique to
guide the process engineers in choosing the best fragments to include into organization s
standard software process (PSPO). A metamodel was proposed to define method fragments. A
support tool was developed to validate the proposed approach through case studies which use
project risks as tailoring criteria.<br>As organizações de desenvolvimento de software estão envolvidas em um ambiente
dinâmico, com diferentes cenários de acordo com as características e demandas específicas de
cada projeto de software. Não há um processo de software que atenda as necessidades
específicas de todos os projetos e/ou organizações. Assim, a adequação de um processo de
desenvolvimento de software depende do contexto do projeto. Situational Method
Engineering (SME) propõe a construção de métodos de desenvolvimento de software
específicos para cada projeto de acordo com as características situacionais dos mesmos a
partir de fragmentos de métodos armazenados em um repositório. Este trabalho propõe uma
abordagem sistemática para a construção de processos de desenvolvimento de software
específicos para cada projeto a partir da adaptação de processos, com base em conceitos de
SME, chamada OSPTA Octopus SME Process Tailoring Approach. OSPTA utiliza
fragmentos de métodos armazenados em um repositório, os quais incluem práticas
preconizadas por processos ágeis e planejados. Tais fragmentos são recuperados de acordo
com um ou mais critério de adaptação, ou requisitos para o processo adaptado, e são
priorizados de acordo com fatores de contextualização de projetos de software definidos no
Octopus Model. A técnica usada para esta priorização é Analytic Hierarchy Process (AHP),
para guiar os engenheiros de processo na escolha dos melhores fragmentos para serem
incluídos no processo de software padrão da organização (PSPO), dando origem ao processo
adaptado, específico para o projeto. Um metamodelo foi proposto para a definição de
fragmentos de métodos para serem utilizados na abordagem. Foi desenvolvida uma
ferramenta para apoiar a abordagem proposta. Estudos de caso considerando riscos do
projeto como critério de adaptação foram elaborados para validar a abordagem.
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Gonçalves, Marcelo. "Uma proposta de modelo para priorização de melhorias intangíveis em um ambiente produtivo." Universidade do Vale do Rio dos Sinos, 2015. http://www.repositorio.jesuita.org.br/handle/UNISINOS/5209.
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Previous issue date: 2015-08-19<br>Nenhuma<br>A falta de uma relação quantitativa direta com o resultado da organização torna difícil a decisão sobre qual melhoria deve primeiro receber os recursos disponíveis. Por esta decisão ser uma tarefa difícil e dependente da experiência do gestor, o uso de métodos quantitativos como apoio a tomada de decisão pode torná-la mais assertiva. Este trabalho tem como objetivo explorar a metodologia de análise multicritério para priorização de melhorias intangíveis do processo produtivo, de forma alinhada com o posicionamento estratégico da organização. Para atender este objetivo, esta pesquisa propõe um modelo para priorização de melhorias intangíveis do processo produtivo, empregando a ferramenta estratégica SWOT para agrupar os fatores relevantes, em um cenário de melhoria de processo, para uma empresa do setor ceramista. Esses fatores foram agrupados em clusters e utilizados para construção de uma rede para representar as suas relações de dependência. Em virtude da dependência existente entre os fatores, foi aplicado o método multicritério Analytic Network Process (ANP) o qual analisa, conjuntamente, a influência dos fatores para a priorização de alternativas representadas por melhorias intangíveis em um ambiente produtivo. Tanto os fatores quanto a rede do problema foram definidos por uma equipe de análise composta por gestores e especialistas. Como resultado, apresenta a priorização das melhorias intangíveis, resultado da construção das matrizes não ponderada, ponderada e aplicação da propriedade de matriz limite. Através da realização de uma análise de sensibilidade aos pesos dos clusters, foi verificada a robustez da priorização obtida.<br>The lack of a direct quantitative relation with the result of the organization makes it difficult to decide which improvements must first receive the resources available. For this decision to be a difficult task and dependent on manager’s experience, the use of methods to support quantitative decision-making can make it more assertive. This study aims to explore the multi-criteria analysis methodology for prioritization of intangible improvements in the production process, in alignment with the strategic positioning of the organization. In order to achieve this objective, this research proposes a model for prioritization of intangible improvements in the production process, using the SWOT analysis tool for clustering the relevant factors in a process improvement scenario for a company of ceramist sector. These factors were clustered and used to build a network to represent their dependency relationships. Due to the interdependence of the factors, the multi-criteria method Analytic Network Process (ANP) was applied to analyze together, the influence of the factors for prioritizing alternative represented by intangible improvements in a productive environment. Both factors and problem network were defined by a team composed of managers and specialists. As a result, this research presents the prioritization of intangible improvements, as the result of the construction of unweighted and weighted matrices followed by the application of the limit process of the weighted matrix. By performing a sensitivity analysis to the weights of the clusters, the robustness of the obtained prioritization has been verified.
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Sena, Júlio Nascimento [UNESP]. "O uso de sistema de informação geográfica na avaliação de diferentes alternativas de geração de cartas de suscetibilidade à erosão." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/98103.
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sena_jn_me_ilha.pdf: 3619184 bytes, checksum: 1da1f1300d9c3ed5cded3afee7686472 (MD5)<br>A erosão do solo é um fenômeno que tem preocupado o homem nas últimas décadas, despertando grande interesse de muitos pesquisadores no que se refere às causas que levam a sua origem, evolução e controle, em razão desta atingir e inutilizar extensas áreas de terras, levando assim à ter a sua previsão uma elevada importância. Com a elaboração das cartas de suscetibilidade a erosão levando em conta os atributos como solo, rocha, declividade e etc. Juntamente com o SIG serão realizados o cruzamento dos atributos mais rapidamente e eficientemente, para que se possa representar melhor a realidade do local, demonstrando assim o potencial desenvolvimento de processos erosivos. Neste trabalho será considerada a importância relativa dos atributos do meio físico com diferentes escalas de peso dadas por diferentes técnicas de avaliação, pesos iguais, pesos diferentes de acordo com a visão de Mauro (2001), pesos diferentes definidos a partir de outros trabalhos da literatura, e pesos diferentes definidos com base em AHP. Com a elaboração de cartas de suscetibilidade à erosão, usando quatro diferentes técnicas, pretende-se desenvolver uma sistemática de atribuição de pesos, que possa ser aplicada a outras bacias hidrográficas. A área a ser estudada será a micro bacia do Prosa localizada a cidade de Campo Grande – Mato Grosso do Sul. Com o produto desta pesquisa pretende-se fornecer subsídios para a realização de outras pesquisas que possam melhorar as condições ambientais de uma determinada micro bacia, para um melhor estudo sobre a elaboração de cartas de suscetibilidades a erosão, bem como, demonstrar que através da utilização de um sistema da informação geográfica é possível realizar estudos ambientais, desenvolver novas técnicas de avaliação ambiental.<br>The soil erosion is a phenomenon that has worried man in recent decades, arousing great interest to many researchers regarding the causes leading to their origin, evolution and control, because of that achieve and become unusable large areas of land, taking thus to have its forecast high importance.With the preparation of susceptibility charts to the erosion taking into account the attributes as soil, rock, slope, etc. Along with the GIS will be made the crossing of the attributes more quickly and efficiently so that it can better represent the reality of the place, thus demonstrating the potential development of erosive processes.This work will be considered the relative importance of the attributes in the physical scales with different weight given by different techniques for evaluation, equal weights, different weights according to the vision of Mauro (2001), defined different weights from other works of literature, and defined different weights based on AHP. With the establishment of susceptibility charts to the erosion, using four different techniques, it is intended to develop a systematic allocation of weights, which can be applied to other river basins. The area to be studied will be the basin of the micro Prosa located in the city of Campo Grande - Mato Grosso do Sul With the product of this research aims to provide subsidies for the implementation of other searches that might improve the environmental conditions of a particular micro basin for a better study on the establishment of suscetibilidades charts erosion, as well as to demonstrate that through the use of the information geographical system it’s possible to realize environmental studies, developing new techniques for environmental estimation.
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Mâncio, Vagner Gerhardt. "Método de apoio à decisão de escolha de tecnologia em sistemas flexíveis de manufatura: estudo de caso." Universidade do Vale do Rio dos Sinos, 2015. http://www.repositorio.jesuita.org.br/handle/UNISINOS/5006.
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Previous issue date: 2015-07-03<br>Nenhuma<br>A competição entre as empresas é cada vez mais um fator de sobrevivência, e a busca de diferenciais é o principal objetivo para que as empresas tornem-se destaques no mercado e se mantenham competitivas. Com o objetivo de contribuir para a evolução das empresas com variedade de produtos e uma taxa média de produção, desenvolveu-se esta pesquisa sobre a viabilidade de altos investimentos em automação e a criação de um método para a escolha de equipamentos a partir de uma visão estratégica, considerando as principais dimensões de competição: custo, qualidade, flexibilidade, entrega. A pesquisa delimita-se no campo de Sistemas Flexíveis de Manufatura – do inglês Flexible Manufacturing System (FMS) –, cujas análises estratégicas e de equipamentos de automatização tenham características de sistemas flexíveis. A pesquisa foi desenvolvida na metodologia de modelagem quali-quantitativa, na qual, através da modelagem dos cenários, puderam ser realizadas avaliações qualitativas e quantitativas; o Método de Análise Hierárquica – do inglês Analytic Hierarchy Process (AHP) – foi utilizado para determinar o cenário que melhor combina com a principal variável competitiva. Para o desenvolvimento da pesquisa, foram coletadas opiniões de especialistas de empresas sobre os pesos comparativos do método AHP e sobre os equipamentos de automação que fazem parte dos cenários criados. O cenário 1 possui layout escada com a movimentação dos materiais realizado por esteiras através de pallets, cuja manipulação é realizada por sistemas pneumáticos. O cenário 2 possui layout campo aberto com a movimentação dos materiais realizado por veículos guiados automaticamente – do inglês Automated Guided Vehicle (AGV), capazes de abastecer e descarregar os equipamentos. O cenário 3 possui layout centrado no robô, com 3 robôs que se movimentam em uma esteira para abastecer e desabastecer os equipamentos. Foram propostos dois métodos de cálculo do mérito final dos cenários, e, para ambos, o melhor cenário foi o 3. Adicionalmente, concluiu-se que adotar o cenário 3 é melhor do que não fazer nada, ou seja, continuar com a instalação atual da célula estudada.<br>The competition between companies is increasingly a factor of survival, and the search for differential is the main objective for companies to become highlights in the market and remain competitive. In order to contribute to the development of companies with a variety of products and an average rate of production, this research was carried out on the feasibility of large investments in automation and the creation of a method for choosing equipment from a vision strategic, considering the main dimensions of competition: cost, quality, flexibility, delivery. The research is delimited in the Flexible Manufacturing Systems field (FMS) whose strategic analysis and automation equipment have flexible systems characteristics. The research was conducted in the qualitative and quantitative modeling methodology, in which, through the modeling of scenarios, could be carried out qualitative and quantitative assessments; the Analytic Hierarchy Process (AHP) was used to determine the setting that best suits the key competitive variable. For the development of research, business expert opinions were collected on the comparative weights of AHP and on the automation equipment that are part of the created scenarios. Scenario 1 has ladder layout with the movement of the materials carried by pallets through mats, in which the handling of materials is achieved by pneumatic systems. Scenario 2 has the open layout with the movement of materials held by Automated Guided Vehicle (AGV), able to supply and unloading equipment. Scenario 3 has focused on the layout robot, in which there are three robots, moving on a conveyor and load and unload the equipment. Two methods of calculating the final merit of the scenarios were proposed. By both methods, the best scenario was the 3. Additionally, the conclusion is that adopting the scenario 3 is better than doing nothing, that is, continue with the current installation of cell studied.
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Sullivan, Lisa, Lennard Cannon, Ronel Reyes, et al. "Rapid Response Command and Control (R2C2): a systems engineering analysis of scaleable communications for Regional Combatant Commanders." Monterey, California. Naval Postgraduate School, 2006. http://hdl.handle.net/10945/7267.
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Includes supplemental material.<br>Disaster relief operations, such as the 2005 Tsunami and Hurricane Katrina, and wartime operations, such as
Operation Enduring Freedom and Operation Iraqi Freedom, have identified the need for a standardized command and control
system interoperable among Joint, Coalition, and Interagency entities. The Systems Engineering Analysis Cohort 9 (SEA-9)
Rapid Response Command and Control (R2C2) integrated project team completed a systems engineering (SE) process to
address the military’s command and control capability gap. During the process, the R2C2 team conducted mission analysis,
generated requirements, developed and modeled architectures, and analyzed and compared current operational systems versus
the team’s R2C2 system. The R2C2 system provided a reachback capability to the Regional Combatant Commander’s (RCC)
headquarters, a local communications network for situational assessments, and Internet access for civilian counterparts
participating in Humanitarian Assistance/Disaster Relief operations. Because the team designed the R2C2 system to be
modular, analysis concluded that the R2C2 system was the preferred method to provide the RCC with the required flexibility
and scalability to deliver a rapidly deployable command and control capability to perform the range of military operations.
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Duss, Alexander. "Development capability profiles of selected reverse engineering techniques." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20222.
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Thesis (MScEng)--Stellenbosch University 2012<br>ENGLISH ABSTRACT: Reverse engineering (RE) has emerged as an important tool in the design stages of a product. The
demand for better performance of hardware and software has spawned many different technologies
that fall under RE. The diversity of technologies is linked to the different application areas of
industry. It is critical to understand what the exact capability of each individual technology is, in
order to choose the appropriate RE system.
The objective of this study is to develop capability profiles of different RE technologies available,
such as: Coordinate Measuring Machine, Articulated Arm (Cimcore), Non-contact scanner (GOM),
and contact scanner (Renishaw). To achieve the objective, the different characteristics of each
technology are measured and quantified.
A capability profile can be regarded as defined criteria that represent the performance of a RE
technology and in this study, is defined by quantifying the following characteristics:
Accuracy
Repeatability
Speed of Measurement
Work Envelope
User-friendliness.
The significance of developing these capability profiles is so that they may be compared to one
another. This is important, especially for the accuracy criterion, as each technology is manufactured
by a different company, making an acceptable accuracy comparison amongst the different
technologies impossible.
The study also suggests an evaluation tool which will help a decision maker choose the appropriate
technology for a specified objective. Guidelines are also given to potential end users of RE
technologies on how they should go about acquiring the right system.
On a more general level, the study contributes to research in recent trends, in the RE industry in
terms of application, hardware, software and the selection of RE systems.
By developing these capability profiles, the study aims to contribute to its value in academia, as well
as for industry partners and potential RE end-users.<br>AFRIKAANSE OPSOMMING: RE het ontwikkel as n belangrike hulpmiddel in die ontwerp fase van ‘n produk. Die aanvraag na
beter prestasie van hardeware en sagteware het gelei tot die ontwikkeling van baie verskillende
tegnologie. Die diversiteit van die tegnologie gaan hand aan hand met die verskillende toepassings
areas in die industrie. Dit is belangrik om die spesifieke eienskappe van elke individuele tegnologie
te verstaan om die regte RE sisteem te kies.
The doel van hierdie studie is om die vermoë profiele van die verskillende beskikbare RE tegnologie
te ontwerp: Coordinate Measuring Machine, Articulated Arm (Cimcore), nie-kontak skandeerder
(GOM) en kontak skandeerder (Renishaw). Die verskillende eienskappe van elke tegnologie word
gemeet en gekwantifiseer.
‘n Vermoë profiel kan gesien word as ‘n vaste kriteria wat die prestasie van die RE tegnologie
verteenwoordig en in hierdie studie word dit gedefinieer deur die volgende eienskappe:
Akkuraatheid
Herhaalbaarheid
Spoed van meeting
Meet volume
Gebruikers-vriendelikheid
Die relevansie van die ontwikkeling van hierdie vermoë profiele is dat dit wedersyds vergelyk kan
word. Dit is belangrik, spesifiek vir die akkuraatheids kriteria, omdat elke tegnologie by ‘n
verskillende maatskappy vervaardig word. ‘n Aanvaarbare akkuraatsheid vergelyking onder die
verskillende tegnologie is dus onmoontlik.
Die studie stel ook ‘n evaluasie hulpmiddel voor wat die besluitnemer sal lei om die mees toepaslike
tegnologie te kies vir die spesiefieke doeleindes. Verder word riglyne aan die potensiele gebruikers
van RE tegnologie gegee oor hoe om te werk te gaan om die regte sisteem te kies indien die
tegnologie nie in besit is nie.
Op ‘n meer algemene vlak dra die studie tot navorsing by deur die nuutste tendense in toepassing,
hardeware, sagteware en die keuse van RE sisteme in die RE industrie te beskryf.
Deur hierdie vermoë profile te ontwikkel beoog die studie om waarde toe te voeg aan die akademie,
vennote in die industrie en potensiele RE gebruikers.
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Robinson-Bryant, Federica. "Defining a Stakeholder-Relative Model to Measure Academic Department Efficiency at Achieving Quality in Higher Education." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5842.
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In a time of strained resources and dynamic environments, the importance of effective and efficient systems is critical. This dissertation was developed to address the need to use feedback from multiple stakeholder groups to define quality and assess an entity's efficiency at achieving such quality. A decision support model with applicability to diverse domains was introduced to outline the approach. Three phases, (1) quality model development, (2) input-output selection and (3) relative efficiency assessment, captured the essence of the process which also delineates the approach per tool applied. This decision support model was adapted in higher education to assess academic departmental efficiency at achieving stakeholder-relative quality. Phase 1 was accomplished through a three round, Delphi-like study which involved user group refinement. Those results were compared to the criteria of an engineering accreditation body (ABET) to support the model's validity to capture quality in the College of Engineering & Computer Science, its departments and programs. In Phase 2 the Analytic Hierarchy Process (AHP) was applied to the validated model to quantify the perspective of students, administrators, faculty and employers (SAFE). Using the composite preferences for the collective group (n=74), the model was limited to the top 7 attributes which accounted for about 55% of total preferences. Data corresponding to the resulting variables, referred to as key performance indicators, was collected using various information sources and infused in the data envelopment analysis (DEA) methodology (Phase 3). This process revealed both efficient and inefficient departments while offering transparency of opportunities to maximize quality outputs. Findings validate the potential of the Delphi-like, analytic hierarchical, data envelopment analysis approach for administrative decision-making in higher education. However, the availability of more meaningful metrics and data is required to adapt the model for decision making purposes. Several recommendations were included to improve the usability of the decision support model and future research opportunities were identified to extend the analyses inherent and apply the model to alternative areas.<br>Ph.D.<br>Doctorate<br>Industrial Engineering and Management Systems<br>Engineering and Computer Science<br>Industrial Engineering
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Eriksson, Ted, and Simon Almersved. "EN JÄMFÖRELSE MELLAN TEGEL- OCH SEDUMTAK UTIFRÅN ETT MILJÖ- OCH KOSTNADSPERSPEKTIV." Thesis, Tekniska Högskolan, Jönköping University, JTH, Byggnadsteknik och belysningsvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-50176.
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Purpose: The housing demand remains high in Sweden and according to Boverket (2017) approximately 600 000 homes need to be built from 2017 to 2025. In order to make this a value-creating investment, the focus should be on trying to meet sustainable social, economic and environmental goals. The life cycle perspective should be the starting point for analyzing buildings. Analyzes such as LCA and LCC can be good tools for examining buildings from an environmental and cost perspective. These analyzes can be used to provide a broader basis for decision making in the future. The analyzes can also increase the likelihood of meeting the aforementioned social, economic and environmental goals. The aim of the study is to investigate which roof type that performs best from an environmental and a cost perspective between the ceramic roof tiles and sedum roof. The goal is also to provide a basis for companies and customers in the construction industry for decision making. The research questions in the study are as following; <li data-leveltext="" data-font="Symbol" data-listid="2" data-aria-posinset="1" data-aria-level="1">How does ceramic roof tiles and sedum roofs perform from an environmental perspective? <li data-leveltext="" data-font="Symbol" data-listid="1" data-aria-posinset="2" data-aria-level="1">What does the cost of ceramic roof tiles and sedum roofs look like during construction versus their entire service life? <li data-leveltext="" data-font="Symbol" data-listid="1" data-aria-posinset="1" data-aria-level="1">What does a comparison of both roof types look like based on the above analyses? Method: To reach the goal, the methods literature studies, document reviews and interviews has been used. These have then been supplemented with a life cycle analysis (LCA), a life cycle cost analysis (LCC) and a multi-criteria analysis (MKA). Findings: From an environmental perspective, the sedum roof had lower carbon dioxide emissions and used primary energy than the ceramic roof tiles, in contrast, the ceramic roof tiles performed better with the emissions that affects the ozone layer. From a cost perspective, the sedum roof performed better at the time of construction while the ceramic roof tiles performed better when considering the whole life cycle. When comparing the roof types with the help of weightings from an expert group in Europe, the ceramic roof tiles performed better and was ranked number one among the alternatives. Implications: Conclusions drawn from the study is that sedum roof performs better in a life cycle analysis and thus have a less negative impact on the environment. Sedum roofs are cheaper compared to ceramic roof tiles in the first two years, then the ceramic roof tiles become cheaper until the year 30. From year 30 until demolition, the sedum roofs are cheaper and finally after demolition the ceramic roof tiles becomes the cheapest. In a multicriteria analysis, the ceramic roof tiles perform a bit better from an environmental and cost perspective. Limitations: The study is limited to only two different roof types and doesn´t consider the differences required for the construction under the roofing felt. Transport is not included in the calculations while the working hours to climb the roof for maintenance of the sedum roof and the costs for repairs to irregular damage to the ceramic roof tiles are also not included in the lifecycle cost analysis. Keywords: Lifecycle Analysis, LCA, Lifecycle Cost Analysis, LCC, Multicriteria Analysis, MKA, COPRAS, Analytic Hierarchy Process, AHP.<br>Syfte: Bostadsbehovet är fortsatt stort i Sverige och enligt Boverket (2017) behövs det byggas cirka 600 000 bostäder från år 2017 till 2025. För att byggnaderna ska kunna bli en värdeskapande investering bör fokus vara på att försöka uppfylla hållbara sociala, ekonomiska och miljömässiga samhällsmål. Livscykelperspektivet bör vara utgångspunkten för att analysera byggnader. Analyser som LCA och LCC kan vara bra verktyg för att undersöka byggnader ur ett miljö-och kostnadsperspektiv. Dessa analyser kan användas för att ge ett bredare underlag för beslutsfattning i framtiden. Analyserna kan också öka sannolikheten att de tidigare nämnda samhällsmålen uppfylls. Målet med studien är att undersöka vilket av tegel- och sedumtak som presterar bäst utifrån ett miljö- och kostnadsperspektiv. Målet är också att kunna ge ett underlag till företag och kunder inom byggbranschen. Frågeställningarna i studien är följande; <li data-leveltext="" data-font="Wingdings" data-listid="3" data-aria-posinset="1" data-aria-level="1">Hur presterar tegel- och sedumtak utifrån ett miljöperspektiv? <li data-leveltext="" data-font="Wingdings" data-listid="3" data-aria-posinset="2" data-aria-level="1">Hur ser kostnaderna ut för tegel- och sedumtak vid byggnationen kontra hela livslängden? <li data-leveltext="" data-font="Wingdings" data-listid="3" data-aria-posinset="1" data-aria-level="1">Hur ser en jämförelse ut mellan båda taktyperna utifrån ovanstående analyser? Metod: För att nå målet har metoderna litteraturstudie, dokumentgranskning och intervjuer använts. Dessa har sedan kompletterats med en livscykelanalys (LCA), en livscykelkostnadsanalys (LCC) samt en multikriterieanalys (MKA). Resultat: Ur ett miljöperspektiv presterar sedumtak bättre för koldioxidutsläppet samt för den primära använda energin, däremot presterar tegeltak bättre för utsläpp som påverkar ozonlagret. Ur ett kostnadsperspektiv presterar sedumtak bättre vid uppförandet medan tegeltaket presterar bättre för en livscykelkostnad. Vid en jämförelse av taktyperna med hjälp av en viktning från en expertgrupp i Europa presterade tegeltak bättre och blev rangordnad nummer ett av alternativen. Konsekvenser: Slutsatser som dras av studien är att sedumtak presterar bättre i en livscykelanalys och har därmed en mindre negativ påverkan på miljön. Sedumtaket är billigare jämfört med tegeltak de två första åren, därefter blir tegeltak billigare fram till år 30. Från år 30 till rivning är sedumtaket billigare och slutligen efter rivning är tegeltaket billigast. Vid en multikriterieanalys presterar tegeltak lite bättre utifrån ett miljö- och ett kostnadsperspektiv. Begränsningar: Studien är begränsad till enbart två taktyper och tar inte heller hänsyn till skillnader som krävs för konstruktionen under underlagspappen. Transporter är ej inkluderade i beräkningarna medan arbetstimmar för att klättra upp på taket vid underhåll av sedumtaket samt kostnader för reparationer till oregelbundna skador på tegelpannor är ej medräknat i livscykelkostnadsanalysen. Nyckelord: Livscykelanalys, LCA, livscykelkostnadsanalys, LCC, multikriterieanalys, MKA, COPRAS, Analytic Hierarchy Process, AHP.
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Gimenes, Filipe Biaggioni Quessada. "Mapa de fragilidade ambiental: conceituação e aplicação em um setor do oleoduto São Paulo - Brasília (OSBRA)." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-20022018-143316/.
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Atualmente existem diferentes definições para o conceito de fragilidade ambiental, o que dificulta sua aplicação e a comparação entre os resultados de diferentes métodos. Este trabalho realiza uma revisão bibliográfica sistemática a cerca desse conceito e adota a definição considerada mais adequada. Com base na definição adotada foi proposto e aplicado um método para avaliar a fragilidade ambiental de uma área de estudo. Esse método utiliza pesos para ponderar os diferentes atributos (meio físico, biótico e socioeconômico) envolvidos na análise de fragilidade ambiental, que são definidos com a aplicação do Processo de Análise Hierárquica (AHP). O método proposto também se fundamenta na utilização de um programa de Sistema de Informação Geográfica (SIG) para a estruturação da base de dados, a realização das análises espaciais e a ponderação dos mapas necessários. A área de estudo corresponde a um setor do oleoduto São Paulo – Brasília (OSBRA), com extensão de 18,5 km e largura de 2 km (área total de 83,99 km²) e utilizou-se uma base cartográfica digital na escala 1:10.000. Foram realizadas vistorias de campo para levantar pontos de observação de superfície e para coletar amostras de solo. Realizaram-se ensaios geotécnicos, químicos e mineralógicos com as amostras coletadas. A aplicação do método consistiu na geração de mapas de suscetibilidade intermediários, que combinados geraram o mapa de fragilidade ambiental. Foi importante a utilização do método AHP, pois ele reduz a subjetividade das ponderações qualitativas realizadas. Os resultados obtidos esclarecem a definição do conceito de fragilidade ambiental, além de mostrar a importância da seleção e ponderação dos atributos utilizados no método. O mapa final gerado também permitiu avaliar a sensibilidade do método e seu potencial de aplicação prática.<br>Currently there are different definitions to the concept of environmental fragility; it complicates its application and makes difficult to compare between different methods. This work addresses the main definitions to this concept and adopts the one considered the most proper. Based in the adopted definition it was proposed a method to evaluate the environmental fragility of a study area. This method applies weights to the different attributes (physical, biotic and socioeconomic) related to the environmental fragility analysis, which are assigned using the Analytic Hierarchy Process (AHP). The method also uses Geographic Information System (GIS) software to structure the database, to conduct the spatial analysis and to assign weights to the maps. The study area is a sector of the São Paulo – Brasília oil pipeline (OSBRA), covering 18.5 km length and 2 km wide (total area of 83,99 km²) and it was used a digital cartographic map at the scale of 1:10,000. Field trips were made to obtain surface observation points and to collect soil samples. Geological and geotechnical tests, mineralogical tests and chemistry analysis were conducted with the soil samples. The method application consists in generating intermediates susceptibility maps, that were combined to generate the environmental fragility map. It was important to use the AHP method, because it reduces the subjectivity of the qualitative weight assignment. The obtained results elucidate the environmental fragility concept and show the importance of the selection and weight assignment of the attributes used in the method. Moreover, the final map provided to evaluate the method sensitivity and its potential of practical application.
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Moud, Nawawi Mohd Kamal. "The development of a hybrid knowledge-based Collaborative Lean Manufacturing Management (CLMM) system for an automotive manufacturing environment : the development of a hybrid Knowledge-Based (KB)/ Analytic Hierarchy Process (AHP)/ Gauging Absences of Pre-Requisites (GAP) Approach to the design of a Collaborative Lean Manufacturing Management (CLMM) system for an automotive manufacturing environment." Thesis, University of Bradford, 2009. http://hdl.handle.net/10454/3353.
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The automotive manufacturing facility is extremely complex and expensive system. Managing and understanding the dynamics of automotive manufacturing is a challenging endeavour. In the current era of dynamic global competition, a new concept such as Collaborative Lean Manufacturing Management (CLMM) can be implemented as an alternative for organisations to improve their Lean Manufacturing Management (LMM) processes. All members in the CLMM value chain must work together towards common objectives in order to make the LMM achievable in the collaborative environment. The novel research approach emphasises the use of Knowledge-Based (KB) approach in such activities as planning, designing, assessing and providing recommendations of CLMM implementation, through: a) developing the conceptual CLMM model; b) designing the KBCLMM System structure based on the conceptual model; and c) implementing Gauging Absences of Pre-requisites (GAP) analysis and Analytic Hierarchy Process (AHP) approach in the hybrid KBCLMM. The development of KBCLMM Model is the most detailed part in the research process and consists of five major components in two stages. Stage 1 (Planning stage) consists of Organisation Environment, Collaborative Business and Lean Manufacturing components. Stage 2 (Design stage) consists of Organisation CLMM Capability and Organisation CLMM Alignment components. Each of these components consists of sub-components and activities that represent particular issues in the CLMM development. From the conceptual model, all components were transformed into the KBCLMM System structure, which is embedded with the GAP and AHP techniques, and thus, key areas of potential improvement in the LMM are identified for each activity along with the identification of both qualitative and quantitative aspects for CLMM implementation. In order to address the real situation of CLMM operation, the research validation was conducted for an automotive manufacturer's Lean Manufacturing Chain in Malaysia. Published case studies were also used to test several modules for their validity and reliability. This research concludes that the developed KBCLMM System is an appropriate Decision Support System tool to provide the opportunity for academics and industrialists from the fields of industrial engineering, information technology, and operation management to plan, design and implement LMM for a collaborative environment.
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Al, Dairi Jasim S. S. "The design and development of a knowledge-based lean six sigma maintenance system for sustainable buildings : the design and development of a hybrid Knowledge-Based (KB)/Gauging Absence of Pre-requisites (GAP)/Analytic Hierarchy Process (AHP) model for implementing lean six sigma maintenance system in sustainable buildings' environment." Thesis, University of Bradford, 2017. http://hdl.handle.net/10454/16021.
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The complexity of sustainable building maintenance environment requires managers to define and implement appropriate quality benchmark system suitable for this function. Lean Six Sigma (LSS) is one of the most effective process improvement and optimization philosophy that maintenance organisations can implement in their environment. However, literature review has shown that 90% of failures in LSS implementations are due to lack of readiness to change, the unawareness of the required benchmark organisation capabilities, and improper control of priorities. The contribution of the current research approach is in developing a hybrid Knowledge-Based (KB)/GAP/AHP System, consisting of three stages (Planning, Designing and Implementation) and containing over 2500 KB rules. The KB System can assist the decision-makers in identifying the obstacles behind the organisation readiness to change into a benchmark LSS maintenance environment. Thus the KB System will be used to achieve benchmark standards by determining the gap existing between the current environment and the benchmark goal, and then suggest a detailed plan to overcome these hurdles in a prioritised and structured manner, thus achieving cost benefits. To ensure its consistency and reliability, the KB System was validated in three Oman-based maintenance organisations, and one published case study for a UK-based organisation. The results from the validation were positive with the System output suggesting list of top priorities and action plans for achieving benchmark LSS standards for these organisations. The research concludes that the developed KB System is a consistent and reliable methodology for assisting decision-makers in designing, planning, and implementing LSS for benchmark sustainable building maintenance.
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Swedenborg, Tobias, and Karl-Anton Brötmark. "Jämförelse av IT-system för säljrapporter : Framtagning av metod för jämförelse och med applicering i en fallstudie." Thesis, KTH, Skolan för teknik och hälsa (STH), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-183097.
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Valet av IT-system kan vara en omfattande process som trots många iblandade kan resultera i ett misslyckade, vilket kan leda till stora och oförutsedda kostnader. Om jämförelsen inte sker enligt en säker och beprövad process är risken större att valet blir fel då det snarare grundas på känsla och marknadsföring än en opartisk jämförelse. Företaget Genero Solutions erbjuder en IT-lösning för säljstyrning som bland annat tillhandahåller rapporter över fältsäljkårers besöksstatistik och ser ett behov av ett bättre rapportsystem som ger granskare av dessa rapporter större frihet vid exploatering av data. Många leverantörer av IT-system inom Business Intelligence erbjuder den här typen av rapportsystem, vilket gör det än svårare att välja vilket system som passar Genero Solutions bäst. Eftersom det finns en väldig mängd av dessa system är risken stor att valet blir fel om jämförelsen inte sker enligt en säker process, utan istället grundas på känsla och marknadsföring. Denna rapport innehåller en metod som jämför tre olika rapportsystem baserad på en etablerad jämförelsemetod för att undersöka möjligheten att åstadkomma ett vetenskapligt resultat. Jämförelsen granskar de tre Business Intelligence systemen Microsoft Powber BI, The Diver Solution och Qlik Sense och baseras på Analytic Hierarchy Process (AHP). Rapporten resulterar i motiverad metod som är lämpad för undersökningen samt en rekommendation till Genero Solutions av det rapportsystem som är bäst lämpat.<br>Selecting the right IT-system might be an extensive process which, despite many people involved, might lead to a failure which can mean high and unforeseen costs. If the comparison of systems isn’t done according to a proven method there is a higher risk that the final choice of IT-system is based on emotions and good marketing rather than a straight and fair comparison. Genero Solutions offers an IT-solution for sales control which is partly providing reports containing statistics from the sales force on field. Genero Solutions is in need of a better reporting system which gives the inspector of the reports more flexibility when exploring data. There are many providers within Business Intelligence who is offering this kind of reporting service, which makes it even harder choosing the system fitting Genero Solutions needs. This report develops a method which is based on scientific theories and the established comparison method Analytic Hierarchy Process (AHP), aiming to achieve a scientifically proved result and apply it by examine the Business Intelligence systems Microsoft Power BI, The Diver Solution and Qlik Sense The result of this report in a motivated method that is suited for this investigation and also a recommendation for which system that is best suited for Genero Solutions needs.
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Thorén, Lina, and Madeleine Burgren. "Comparing the Outcomes of Two Decision Support Models: The Analytical Hierarchy Process and Pugh Matrix Analysis : Using an actual multi-criteria decision-making situation." Thesis, Karlstads universitet, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-38949.
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Since businesses are constantly changing, making right decisions is a critical factor in order to achieve good results. In the thesis, two different decision support models are tested and the outcome is compared. This is done in cooperation with a company, Åmotfors Energi, who is facing a decision on how they can make use of their 30 GWh heat which they today do not have a paying customer for. Nine alternatives are used in the models and evaluated with seventeen different criteria. The purpose of this study is to compare and interpret the outcomes of two decision support models: the Analytical Hierarchy Process and Pugh Matrix Analysis. The purpose is also to investigate the main factors that influence the outcome of the models. The main research strategy was to use experimental design where three experts with various technical skills have scored the alternatives in both models. The alternatives have been carefully developed through an idea generation and idea selection phase. The results show that the models give different result when it comes to ranking the alternatives, both between the models and between the different experts. The empirical findings establish that the outcome from the models should be interpreted that the lowest scored alternatives can be eliminated for further research. The alternatives with the highest score should be further investigated before a decision could be made. Furthermore, what mainly affects the result is based on human factors.<br>Företag står inför ständiga förändringar och att fatta rätt beslut ses som en kritisk faktor för att uppnå goda resultat. I denna uppsats testas två beslutsstödjande modeller där utfallet av dem jämförs. Detta görs med hjälp av företaget Åmotfors Energi som står inför ett beslut om hur de kan använda deras 30 GWh värme som de i dagsläget inte har någon betalande kund för. Nio alternativ används i modellerna och utvärderas med sjutton uppsatta kriterier. Syftet med denna studie är att testa, jämföra och tolka resultatet från två beslutsstödjande modeller, den Analytiska Hierarkiska Processen och Pughs Matris Analys. Syftet är också att utreda vilka huvudfaktorer som påverkar utfallet av modellerna. Den huvudsakliga forskningsstrategin var ett experiment tre experter med olika tekniska färdigheter har poängsatt de olika alternativen i modellerna. Alternativen är omsorgsfullt framtagna genom en idégenereringsfas och en idéurvalsfas. Resultaten visar att modellerna ger olika resultat när det kommer till att rangordna alternativen, både vid jämförelsen mellan modellerna men även mellan experterna. Den empiriska studien visar att resultatet från modellerna bör tolkas som att de lägst rankade alternativen kan uteslutas, och de högst rankade alternativen bör utvärderas vidare innan ett besluta kan tas. Det som huvudsakligen påverkar resultatet baseras på mänskliga faktorer.
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Almeida, Larissa Medeiros de. "Avaliação da gravidade da malária utilizando técnicas de extração de características e redes neurais artificiais." Universidade Federal do Amazonas, 2015. http://tede.ufam.edu.br/handle/tede/4093.
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Previous issue date: 2015-04-17<br>Não Informada<br>About half the world's population lives in malaria risk areas. Moreover, given the
globalization of travel, these diseases that were once considered exotic and mostly tropical are
increasingly found in hospital emergency rooms around the world. And often when it comes
to experience in tropical diseases, expert opinion most of the time is not available or not
accessible in a timely manner. The task of an accurate and efficient diagnosis of malaria,
essential in medical practice, can become complex. And the complexity of this process
increases as patients have non-specific symptoms with a large amount of data and inaccurate
information involved. In this approach, Uzoka and colleagues (2011a), from clinical
information of 30 Nigerian patients with confirmed malaria, used the Analytic Hierarchy
Process method (AHP) and Fuzzy methodology to conduct the evaluation of the severity of
malaria. The results obtained were compared with the diagnosis of medical experts. This
paper develops a new methodology to evaluate the severity of malaria and compare with the
techniques used by Uzoka and colleagues (2011a). For this purpose the data set used is the
same of that study. The technique used is the Artificial Neural Networks (ANN). Are
evaluated three architectures with different numbers of neurons in the hidden layer, two
training methodologies (leave-one-out and 10-fold cross-validation) and three stopping
criteria, namely: the root mean square error, early stop and regularization. In the first phase,
we use the full database. Subsequently, the feature extraction methods are used: in the second
stage, the Principal Component Analysis (PCA) and in the third stage, the Linear
Discriminant Analysis (LDA). The best result obtained in the three phases, it was with the full
database, using the criterion of regularization associated with the leave-one-out method, of
83.3%. And the best result obtained in (Uzoka, Osuji and Obot, 2011) was with the fuzzy
network which revealed 80% accuracy<br>Cerca de metade da população mundial vive em áreas de risco da malária. Além disso, dada a
globalização das viagens, essas doenças que antes eram consideradas exóticas e
principalmente tropicais são cada vez mais encontradas em salas de emergência de hospitais
no mundo todo. E frequentemente quando se trata de experiência em doenças tropicais, a
opinião de especialistas na maioria das vezes está indisponível ou não acessível em tempo
hábil. A tarefa de chegar a um diagnóstico da malária preciso e eficaz, fundamental na prática
médica, pode tornar-se complexa. E a complexidade desse processo aumenta à medida que os
pacientes apresentam sintomas não específicos com uma grande quantidade de dados e
informação imprecisa envolvida. Nesse sentido, Uzoka e colaboradores (2011a), a partir de
informações clínicas de 30 pacientes nigerianos com diagnóstico confirmado de malária,
utilizaram a metodologia Analytic Hierarchy Process (AHP) e metodologia Fuzzy para
realizar a avaliação da gravidade da malária. Os resultados obtidos foram comparados com o
diagnóstico de médicos especialistas. Esta dissertação desenvolve uma nova metodologia para
avaliação da gravidade da malária e a compara com as técnicas utilizadas por Uzoka e
colaboradores (2011a). Para tal o conjunto de dados utilizados é o mesmo do referido estudo.
A técnica utilizada é a de Redes Neurais Artificiais (RNA). São avaliadas três arquiteturas
com diferentes números de neurônios na camada escondida, duas metodologias de
treinamento (leave-one-out e 10-fold cross-validation) e três critérios de parada, a saber: o
erro médio quadrático, parada antecipada e regularização. Na primeira fase, é utilizado o
banco de dados completo. Posteriormente, são utilizados os métodos de extração de
características: na segunda fase, a Análise dos Componentes Principais (do inglês, Principal
Component Analysis - PCA) e na terceira fase, a Análise Discriminante Linear (do inglês,
Linear Discriminant Analysis – LDA). O melhor resultado obtido nas três fases, foi com o
banco de dados completo, utilizando o critério de regularização, associado ao leave-one-out,
de 83.3%. Já o melhor resultado obtido em (Uzoka, Osuji e Obot, 2011) foi com a rede fuzzy
onde obteve 80% de acurácia.
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Mohamed, N. M. Z. Nik. "The Development of a Hybrid Knowledge-Based System for Designing a Low Volume Automotive Manufacturing Environment. The Development of A Hybrid Knowledge-Based (KB)/Gauging Absences of Pre-Requisites (GAP)/Analytic Hierarchy Process (AHP) System for the Design and Implementation of a Low Volume Automotive Manufacturing (LVAM) Environment." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5515.
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The product development process for the automotive industry is normally complicated, lengthy, expensive, and risky. Hence, a study on a new concept for Low Volume Automotive Manufacturing (LVAM), used for niche car models manufacturing, is proposed to overcome this issue. The development of a hybrid Knowledge Based (KB) System, which is a blend of KB System, Gauging Absences of Pre-requisites (GAP), and Analytic Hierarchy Process (AHP) is proposed for LVAM research. The hybrid KB/GAP/AHP System identifies all potential elements of LVAM issues throughout the development of this system. The KB System used in the LVAM analyses the gap between the existing and the benchmark organisations for an effective implementation. The novelty and differences in the current research approach emphasises the use of Knowledge Based (KB) System in the planning and designing stages by suggesting recommendations of LVAM implementation, through: a) developing the conceptual LVAM model; b) designing the KBLVAM System structure based on the conceptual LVAM model; and c) embedding Gauging Absences of Pre-requisites (GAP) analysis and Analytic Hierarchy Process (AHP) approach in the hybrid KBLVAM System. The KBLVAM Model explores five major perspectives in two stages. Planning Stage (Stage 1) consists of Manufacturer Environment Perspective (Level 0), LVAM Manufacturer Business Perspective (Level 1), and LVAM Manufacturer Resource Perspective (Level 2). Design Stage (Stage 2) consists of LVAM Manufacturer Capability - Car Body Part Manufacturing Perspective (Level 3), LVAM Manufacturer Capability - Competitive Priorities Perspective (Level 4), and LVAM Manufacturer Capability - Lean Process Optimisation Perspective (Level 5). Each of these perspectives consists of modules and sub-modules that represent specific subjects in the LVAM development. Based on the conceptual LVAM model, all perspectives were transformed into the KBLVAM System structure, which is embedded with the GAP and AHP techniques, hence, key areas of potential improvement are recommended for each activity for LVAM implementation. In order to be able to address the real situation of LVAM environment, the research verification was conducted for two automotive manufacturers in Malaysia. Some published case studies were also used to check several modules for their validity and reliability. This research concludes that the developed KBLVAM System provides valuable decision making information and knowledge to assist LVAM practitioners to plan, design and implement LVAM in terms of business organisation, manufacturing aspects and practices.
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Yigit, Aybeniz. "A Methodology For Determining The Cluster Of A New Project." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606163/index.pdf.
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By definition, all projects are unique<br>however R&<br>D projects have specific characteristics that make them harder to manage. The project management methodology applied to R&<br>D projects may show differences due to the categorization of them. But if there exists a categorization of projects, one can analyze the properties of the project classes and then manage similar projects similarly.
In this study, the R&<br>D projects of a main military electronics company of Turkey, are analyzed. Tunç<br>(2004) has developed a methodology for clustering the projects of this electronics company. Continuing from his studies, a methodology for determining the class of a new project of this electronics company is developed.
For defining the projects in a project space, a Project Identification Card (PIC) is developed. The measurement scale of the PIC is constructed by using the absolutemeasurement Analytic Hierarchy Process. A clustering Tabu Search algorithm is generated for using in the sensitivity analyses of the clusters to projects. And a methodology for determining the cluster of a new project is developed.
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Sun, Qie. "Understanding the Clean Development Mechanism and its dual aims : the case of China's projects." Doctoral thesis, KTH, Industriell ekologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-37462.
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Having been running for over 10 years, the Clean Development Mechanism (CDM) is considered an innovative and successful mitigation initiative. CDM has the dual aims of helping industrialised countries achieve compliance with their emission limitation and reduction commitments in a cost-effective way, while simultaneously assisting developing countries in sustainable development. This thesis does a comprehensive analysis of the dual aims of CDM and is intended to assist in discussions about the post-2012 regime regarding CDM. To analyse the aim of assisting mitigation in a cost-effective way, the prices of certified emission reductions (CERs) on the international carbon market was studied and the provision of CDM was tested by comparing the amount of CERs with the mitigation commitments of the Annex I countries. It was found that CDM plays an important role in maintaining the international carbon price at a low level and that the total amount of CERs alone had already reached up to 52.70% of the entire mitigation commitments of industrialized countries by the end of 2010 and was continuing to grow before 2012. A theoretical analysis of the impacts of CDM showed that CDM has a double mitigation effect in both developing countries and industrialised countries, without double counting at present. A quantitative evaluation of the effects of China’s CDM projects on China’s total emissions showed that the contribution of CDM projects to limiting total emissions is small due to the dominance of fossil fuels, but CDM’s role in stimulating renewable energy is significant, e.g. about 11% of hydropower and 93% of wind power was generated by CDM projects in 2010. The results provide strong evidence in support of CDM’s contribution under the current Kyoto Protocol mitigation regime. To analyse the aim of promoting sustainable development in developing countries, popular methods such as checklist, Multi-Criteria Analysis (MCA) and Cost-Benefit Analysis (CBA) were reviewed, a CBA of co-benefits of China’s CDM projects was carried out, and the Analytic Hierarchy Process (AHP) method was applied in an experimental study. The results showed that every method has its own advantages and problems. In other words, neither the CBA of co-benefits nor the AHP method alone is able to assess sustainable development in a completely satisfactory way. Currently, a bottom-up approach through engaging local stakeholders in CDM design and approval, combining a mandatory monitoring and evaluation of co-benefits, could be more effective for safeguarding local sustainable development than any consolidated standards. The future of the CDM is still unclear mainly due to uncertainties about the post-2012 regime. This thesis shows that there is more than sufficient reason for CDM to continue after 2012. Industrialised countries in general should make more substantial efforts to reduce their domestic emissions rather than blaming developing countries. For developing countries, learning from the CDM projects and further applying the knowledge, technology and experiences to their domestic development agenda could be more valuable than the present CER revenues. CDM can be an important starting point for developing countries to gradually make incremental greenhouse gas (GHG) reduction and limitation efforts.<br>QC 20110817
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Yu, Jodie Wei. "Investigation of New Forward Osmosis Draw Agents and Prioritization of Recent Developments of Draw Agents Using Multi-criteria Decision Analysis." DigitalCommons@CalPoly, 2020. https://digitalcommons.calpoly.edu/theses/2185.
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Forward osmosis (FO) is an emerging technology for water treatment due to their ability to draw freshwater using an osmotic pressure gradient across a semi-permeable membrane. However, the lack of draw agents that could both produce reasonable flux and be separated from the draw solution at a low cost stand in the way of widespread implementation. This study had two objectives: evaluate the performance of three materials — peptone, carboxymethyl cellulose (CMC), and magnetite nanoparticles (Fe3O4 NPs) — as potential draw agents, and to use multi-criteria decision matrices to systematically prioritize known draw agents from literature for research investigation. Peptone showed water flux and reverse solute flux values comparable to other organic draw agents. CMC’s high viscosity made it impractical to use and is not recommended as a draw agent. Fe3O4 NPs showed average low fluxes (e.g., 2.14 LMH) but discrete occurrences of high flux values (e.g., 14 LMH) were observed during FO tests. This result indicates that these nanoparticles have potential as draw agents but further work is needed to optimize the characteristics of the nanoparticle suspension. Separation of the nanoparticles from the product water using coagulation was shown to be theoretically possible if only electrostatic and van der Waals forces are taken into account, not steric repulsion. If coagulation is to be considered for separation, research efforts on development of nanoparticle suspensions as FO draw agents should focus on development of electrostatically stabilized nanoparticles. A combination of Fe3O4 NP and peptone showed a higher flux than Fe3O4 NPs alone, but did not produce additive or synergistic flux. This warrants further research to investigate more combinations of draw agents to achieve higher flux than that obtained by individual draw agents.
Potential draw agents were prioritized by conducting a literature review of draw agents, extracting data on evaluation criteria for draw agents developed over the past five years, using these data to rank the draw agents using the Analytical Hierarchy Process (AHP) and Technique for Order of Preference by Similarity to Ideal Solutions (TOPSIS). The evaluation criteria used in the ranking matrices were water flux, reverse solute flux, replenishment cost, regeneration cost, and regeneration efficacy. The results showed that the top five ranked draw agents were P-2SO3-2Na, TPHMP-Na, PEI-600P-Na, NaCl, and NH4-CO2. The impact of the assumption made during the multi-criteria decision analysis process was evaluated through sensitivity analyses altering criterion weighting and including more criteria. This ranking system provided recommendations for future research and development on draw agents by highlighting research gaps.
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Gregório, Carolina Andrea Garisto. "Método para análise da oportunidade de imobilização em imóveis corporativos." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/3/3146/tde-19012011-102000/.
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O avanço da economia brasileira e o amadurecimento dos mercados induzem a crescente competitividade nos diferentes setores. Com isso, as corporações buscam por maneiras de investir com maior produtividade de modo a direcionar recursos nas suas atividades fins para desenvolvimento e expansão do negocio principal. Os ativos imobiliários são um dos recursos mais onerosos para muitas empresas, que ainda imobilizam recursos nesses ativos de longo prazo de maturação. É incipiente a percepção das empresas brasileiras em relação às perdas de oportunidade de ganho com os investimentos que são internados nas suas bases instaladas. Nesse contexto, a tese trata da configuração de um método para analise da oportunidade de imobilização e desmobilização em imóveis corporativos sob a ótica das corporações usuárias, por meio da identificação de critérios qualitativos e quantitativos (econômico-financeiros) relevantes a analise, considerando (i) os mecanismos diretos e indiretos atualmente empregados no Brasil, (ii) a sustentação legal, (iii) as praticas tributarias e contábeis, e (iv) as praticas prevalentes de mercado. Os critérios de decisão do método são priorizados pelos administradores das corporações com auxilio de uma ferramenta para analise hierárquica de decisão (Analytic Hierarchy Process - AHP), que indica a alternativa mais adequada entre as opções de imobilização ou não no real estate para cada situação. O método desenvolvido nesta tese pode ser uma importante ferramenta de apoio para as diretrizes de governança corporativa no que tange as decisões em relação ao portfolio de real estate das corporações, podendo ser utilizado por empresas com atuação nos diferentes setores da economia, tais como: manufatura, serviços, varejo, entre outros, inclusive no setor publico.<br>The development of the Brazilian economy and the maturity of the markets have prompted growing competition within different sectors. In this context corporations tend to find ways to invest more productively by focusing on their main activities in an effort to enhance their core business. Real estate assets are generally one of the companies\' greatest expenses; even so, companies still invest in these long-term maturity assets. It is still incipient the perception of Brazilian companies as regards the opportunity costs incurred by them as a result of investing in real estate assets. In view of the foregoing, the thesis sets forth an analysis method to guide the decision whether to invest or not in real estate assets from the perspective of corporate users. The analysis is based on qualitative and quantitative attributes by taking in account (i) both direct and indirect procedures currently used in Brazil, (ii) the legal framework, (iii) the tax and accounting practices, and (iv) the prevalent market practices. The method\'s decision criteria are prioritized by the corporations` officers through the AHP tool (Analytic Hierarchy Process), which indicates the most appropriate decision in each situation. The method herein developed may work as an important corporate governance guideline in the extent real estate portfolio decisions are taken by corporations, and it can be used by companies of different sectors, such as manufacturing, service, retail, among others, including the public sector.
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Santos, Tálita Floriano dos. "Proposta de um sistema de medição de desempenho que auxilie a gestão da cadeia de suprimentos: uma aplicação no setor de serviços." Universidade Federal da Paraíba, 2014. http://tede.biblioteca.ufpb.br:8080/handle/tede/5253.
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Previous issue date: 2014-02-28<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>The performance measurement is emphasized in the literature as an important feature to the supply chain management, because as it comes between a customers and suppliers relationship, it is essential a medium to evaluate if this relation is as expected. However, although to the performance measurement s significance is acknowledged and ratified, there are some difficulties on how to evaluate the performance on supply chains, especially in the service sector. Thereby, of the forms to evaluate the performance is through a performance measurement system that certifies with management models to supply chains. Accordingly, this work s goal is to propose a performance measurement system to assist in the supply chain management, with the application towards the service sector. To achieve such goal, this work adopts a quali-quantitative approach following these steps: 1) Conceptual theoretical structure s definition; 2) Choice of a focal company; 3) Mapping of current and beneath supply chains; 4) Performance indicators definition; 5) Performance metric s definition; 6) Verification of the significance of processes and metrics with AHP aid. Starting from these goals, the study proposes a performance measurement system based on the SCOR management model and it was applied in a company in the service sector and in a supplier. Starting from the conducted analysis it was found that the most important processes in decreasing order were: Source, Plan, Deliver, Make and Return. For the metrics, the most important were: perfect order fulfillment, stock cost, average answer time to a service request, deliveries carried without faults, and finally, customer complaint. Thereby, according to the seen results, it is possible to settle the most important metrics between the focal company and supplier, expecting the relationship s performance to be improved.<br>A avaliação de desempenho é destacada na literatura como fator importante para o gerenciamento da cadeia de suprimentos, pois como se trata de relacionamentos entre clientes e fornecedores, é necessário um meio para avaliar se esse relacionamento está conforme o esperado. No entanto, embora a importância da avaliação de desempenho seja reconhecida e ratificada, existem ainda dificuldades em como avaliar o desempenho em cadeias de suprimentos, em especial no setor de serviços. Para isso, uma das formas de se avaliar o desempenho é por meio de um sistema de medição de desempenho que corrobore com modelos de gestão para cadeia de suprimentos. Nesse sentido, o objetivo desse trabalho é propor um sistema de medição de desempenho que auxilie na gestão da cadeia de suprimentos, com uma aplicação voltada para o setor de serviços. Para atingir tal objetivo, o trabalho segue uma abordagem quali-quantitativa que primeiramente define uma estrutura conceitual teórica, posteriormente, seleciona uma empresa foco e realiza o mapeamento da cadeia de suprimentos imediata. A partir disto, houve a definição dos indicadores de desempenho e as métricas de desempenho. Por fim, para atingir os objetivos da pesquisa fez-se a verificação da importância dos processos e métricas, a nível operacional, com o auxílio do AHP. Assim, o estudo propõe um sistema de medição de desempenho, baseado no modelo de gestão SCOR e foi aplicado em uma empresa do setor de serviços e em uma fornecedora. De posse das análises realizadas constatou-se que os processos mais importantes em ordem decrescente foram: Abastecer, Planejar, Entregar, Fazer e Retornar. Já para as métricas, as mais importantes foram: cumprimento da ordem perfeita, custo de estoque, tempo médio de resposta a uma solicitação de serviços, entregas realizadas sem defeitos e por fim, reclamações dos clientes. De acordo com os resultados apresentados, foi possível estabelecer as métricas mais importantes entre a empresa foco e fornecedor, esperando-se que o desempenho dessa relação seja aprimorado.
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Cintimur, Mehmet Bilgekagan. "Evaluation Of Settlement Sites Beyond The Scope Of Natural Conditions And Hazards By Means Of Gis Based Mcda: Yesilirmak Catchment." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611952/index.pdf.
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Our country is a risky position in terms of natural disasters. In the long run, preferentially settlement areas were selected to ensure maximum benefits in terms of both economic and security aspects, other criteria is not taken account when selection of sites.
The main purpose of this study is to examine and compare the properties of settlement location based on natural hazard and environmental constraints to be able to understand the interaction between the settlements and natural conditions at the regional scale of YeSilirmak Basin.
A MCDA was set up with 10 different data layers in two data domains (environmental and natural hazards domains), are evaluated. The results of the MCDA scores are then transferred to settlement databases in order to evaluate the number of existing settlements in different environmental and natural hazard related suitability classes.
It is found that almost 29% of YeSilirmak catchment is environmentally favorable for settlement, and in coherence with that 41% of all existing settlements are located in this zone, indicating a clear preference among the perception of environmentally better places to be settled in.
On the other hand with respect to the natural hazards dataset, the locations of the settlements fail to create any preference, as 73,32% of the area is used by 73,50% of existing settlements, which indicates that the perception of natural hazards are low and do not effect settlement criteria, while the acceptable risk of community is high.
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Raihan, Md Asif. "Improved Methods for Network Screening and Countermeasure Selection for Highway Improvements." FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3846.
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Network screening and countermeasure selection are two crucial steps in the highway improvement process. In network screening, potential improvement locations are ranked and prioritized based on a specific method with a set of criteria. The most common practice by transportation agencies has been to use a simple scoring method, which, in general, weighs and scores each criterion and then ranks the locations based on their relative overall scoring. The method does not deal well with criteria that are qualitative in nature, nor does it account for the impacts of correlation among the criteria. The introduction of Analytic Hierarchy Process (AHP) provides agencies with a method to include both quantitative and qualitative criteria. However, it does not address the issue on correlation. This dissertation explores the use of both Analytic Network Process (ANP) and Fuzzy Analytic Network Process (FANP) for their potential capabilities to address both issues. Using urban four-lane divided highways in Florida for bicycle safety improvements, both ANP and FANP were shown to provide more reasonable rankings than AHP, with FANP providing the best results among the methods.
After the locations are ranked and prioritized for improvements, the next step is to evaluate the potential countermeasures for improvements at the selected top-ranked locations. In this step, the standard practice has been to use Crash Modification Factors (CMFs) to quantify the potential impacts from implementing specific countermeasures. In this research, CMFs for bicycle crashes on urban facilities in Florida were developed using the Generalized Linear Model approach with a Zero-Inflated Negative Binomial (ZINB) distribution. The CMFs were tested for their spatial and temporal transferability and the results show only limited transferability both spatially and temporally. The CMFs show that, in general, wider lanes, lower speed limits, and presence of vegetation in the median reduce bicycle crashes, while presence of sidewalk and sidewalk barrier increase bicycle crashes. The research further considered bicycle exposure using the bicycle activity data from the Strava smartphone application. It was found that increased bicycle activity reduces bicycle crash probabilities on segments but increases bicycle crash probabilities at signalized intersections. Also, presence of bus stops and use of permissive signal phasing at intersections were found to increase bicycle crash probabilities.