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Gonzalez, Esquivel Carlos Ernesto. "Evaluation of suitability in dairy cattle production systems." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286689.
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Hohler, Deborah Dorothea. "Evaluation of habitat suitability models for elk and cattle." Thesis, Connect to this title online, 2004. http://bibpurl.oclc.org/web/9208.
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Stobart, Anne Patricia. "The situational suitability of job evaluation plans in unionized environments." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/25718.
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Despite the age of and scholarly interest in job evaluation, little research has been done which would assist the practitioner in determining what plan would best suit any given situation (particularily within a unionized context) and what criteria can be used to measure plan effectiveness. The focus of this study was to identify and analyze the situational factors which influence a firm's choice of job evaluation plans, and ascertain the impact these factors may have on plan effectiveness, as well as, to develop common criteria for measuring effectiveness. A sample of three British Columbia unionized organizations was examined, and the observations arising from each plan were documented in the form of a case study.
Each plan reflected historical, environmental and internal influences peculiar to the individual organization while, at the same, all had been subjected to certain common exigencies. The observations of the sample supported earlier research on the influence of various factors. For example, as noted in the literature, senior management support, the existence of an appeal mechanism and regular plan audit, as well as, full information accessibility appeared to correlate with plan effectiveness. Additionally, it was noted that the stability and competency of the analysts, as well as, the nature of the work environment were particularily influential. A growth in union interest in job evaluation was evident and the relationship between management and the union strongly dictated the degree of freedom with which management was able to apply job evaluation. However, job evaluation was perceived, by both management and labour, to be non-adversarial in nature. The traditional job evaluation process was evidently time-consuming and cumbersome; all organizations expressed a need for a more expedient process. Only one organization expressed concern regarding the issue of equal pay for work of equal value, suggesting that it is, currently, more of a philosophical than practical issue vis a vis job evaluation. Few common criteria of job evaluation plan effectiveness were applied. Nevertheless, based on common concerns and experiences observed in the study a measurement "checklist" was compiled which outlined the following job evaluation plan requirements: (1) predetermined goals of the plan, (2) senior management support, (3) workable terms of reference, (4) evaluation method suitability, (5) evaluation method soundness, (6) evaluation consistency, (7) checks for accuracy/objectivity, (8) plan credibility and comprehensibility, (9) administrative efficiency, and (10) wage/classification structure rationality.
Insofar as labour and management share a common goal for job evaluation, the potential for increased sophistication and effectiveness of plan development and administration appears to be great.Business, Sauder School of
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Erlandsson, Zacharias. "Suitability of OCR Engines in Information Extraction Systems : a Comparative Evaluation." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-255021.
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Previous research has compared the performance of OCR (optical character recognition) engines strictly for character recognition purposes. However, comparisons of OCR engines and their suitability as an intermediate tool for information extraction systems has not previously been examined thoroughly. This thesis compares the two popular OCR engines Tesseract OCR and Google Cloud Vision for use in an information extraction system for automatic extraction of data from a financial PDF document. It also highlights findings regarding the most important features of an OCR engine for use in an information extraction system, when it comes to structure of output as well as accuracy of recognitions. The results show a statistically signifant increase in accuracy for the Tesseract implementation compared to the Google Cloud Vision one, despite previous research showing that Google Cloud Vision outperforms Tesseract in terms of accuracy. This was accredited to Tesseract producing more predictable output in terms of structure, as well as the nature of the document which allowed for smaller OCR processing mistakes to be corrected during the extraction stage. The extraction system makes use of the aforementioned OCR correctional procedures as well as an ad-hoc type system based on the nature of the document and its fields in order to further increase the accuracy of the holistic system. Results for each of the extraction modes for each OCR engine are presented in terms of average accuracy across the test suite consisting of 115 documents.Tidigare forskning har gjorts som jämför prestandan av OCR-motorer (optical character recognition) uteslutande för dess teckenläsande egenskaper. Jämförelser för OCR-motorer som verktyg för system för informationsextraktion har däremot inte gjorts tidigare. Det här examensarbetet jämför de två populära OCR-motorerna Tesseract OCR och Google Cloud Vision för användning i ett system som används för automatisk extraktion av data från ett finansiellt PDFdokument. Arbetet belyser även observationer angående vilka de viktigaste egenskaperna hos en OCR-motor är för användning i ett system för informationsextraktion. Resultaten visade en statistisk signifikant ökning i exakthet för implementationen med Tesseract jämfört med Google Cloud Vision, trots tidigare forskning som visar att Google Cloud Vision kan utföra teckenläsning mer exakt. Detta ackrediteras till det faktum att Tesseract producerar mer konsekvent utdata när det kommer till struktur, och att vissa felaktiga teckeninläsningar kan korrigeras av extraktionssystemet. Extraktionssystemet använder sig av ovan nämnd OCR-rättande metodik samt ett ad-hoc typsystem baserat på dokumentets innehåll för att öka exaktheten för det holistiska systemet. Dessa metoder kan även isoleras till enskilda extraktionslägen. Resultat för varje extraktionsläge presenteras genom genomsnittlig exakthet över testsviten som bestod av 115 dokument.
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Yang, Xinbo. "SUITABILITY EVALUATION OF EMERGING DRYING TECHNOLOGIES FOR FINE CLEAN COAL DRYING." OpenSIUC, 2015. https://opensiuc.lib.siu.edu/theses/1688.
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The selling price of coal product in the market depends on the heating value or BTU content of coal, which is a function of both ash and moisture content. Typically the ash content of fine coal and coarse coal reporting to the clean coal belt of a coal preparation plant are relatively similar from each other, however, the moisture content of fine coal is much higher, i.e., 2 to 3 times that of the coarse coal. In that case, although the fine coal proportion of the total clean coal tonnage produced from a plant is in the 10 to 15% range, as much as 33% of the total moisture content in the clean coal product is contributed by the fine coal fraction. A simple analysis indicates that if the moisture content of the fine coal fraction can be substantially reduced by 50% or more, the density-cut of the coarse coal cleaning circuit can be increased and higher overall plant yield can be obtained while satisfying the overall product heating value specification. To achieve this improvement, the use of a suitable drying technology for fine coal is required. The conventional thermal dryer using convective heating mechanism is an expensive option because of the inherent inefficiencies and safety issues in its operations. The major goal of this study was to evaluate two emerging coal drying technologies, the Nano Drying Technology (NDT) and the Parsepco Drying Technology (PDT), for further reducing moisture content of fine clean coal generating from coal preparation plants in Illinois. The Nano Drying Technology, developed by Nano Drying Technologies, LLC. in West Virginia, makes use of molecular sieves to extract residual moisture from mechanically dewatered coal. In this study, mechanically dewatered fine clean coal collected from Prairie Eagle coal preparation plant, IL and Kepler coal preparation plant, WV were used for the NDT system evaluation. The laboratory experimental results showed that the NDT is able to reduce the moisture content of Illinois fine clean coal from over 20% to less than 10%. Pilot-scale experiments were conducted at NDT LLC's pilot-scale facility in Beckley, WV to evaluate and optimize the system's performance. A parametric study conducted using the Box-Behnken experimental design showed that the mass ratio of molecular sieves to coal feed was the most significant factor for the NDT coal moisture reduction process. An optimal product moisture content of 7.3% was achieved for the IL No. 6 seam coal. The Parsepco Drying Technology is provided by Particle Separation System (PSS) Ltd. in South Africa, which utilizes medium wave infrared radiation to remove the moisture from dewatered fine clean coal. Pilot-scale tests were conducted in Illinois Coal Development Park with IL fine clean coal collected from Prairie Eagle coal preparation plant. Product moisture of 5.3% was achieved with production of 22.8 lb/hr. An optimization analysis on the preliminary tests results was then carried out using Historical Data Respond Surface Method in Design Expert software. The medium-wave infrared radiative (MIR) intensity at 60% of its full power was concluded to be the optimal condition for fine clean coal drying. Feed rate and retention time of drying controlled by coal depth and speed of belt were significant on production. The optimized condition predicted a coal product moisture of 9.5% with production of 57.7 lb/hr. An economic analysis of the plant yield improvement and the resulting revenue gain achievable in a coal preparation plant flow sheet was conducted for Prairie Eagle coal processing plant in Illinois which produces 88 tph mechanically dewatered fine clean coal with average moisture content of 19.66%. The increased coal production of the plant with introducing fine coal drying technology was estimated based on the feed washability data of Knight Hawk coal. Both NDT and PDT are able to reduce the fine coal product moisture to be less than 10%, however, the nanotechnology was proved to be more safety and economical for fine clean coal drying.
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Baniya, Nabarath. "Land suitability evaluation using GIS for vegetable crops in Kathmandu Valley/Nepal." Doctoral thesis, Humboldt-Universität zu Berlin, Landwirtschaftlich-Gärtnerische Fakultät, 2008. http://dx.doi.org/10.18452/15826.
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Kathmandu ist ein stark landwirtschaftlich genutztes Tal in der Gebirgsregion Zentral-Nepals. Einst für seine ertragreiche Landwirtschaft berühmt, sind die Erträge in den letzten Jahren aufgrund ungezügelter Verstädterung und hohem Bevölkerungswachstum immer mehr gefährdet. Eine Evaluation des Kathmandu-Tals nach entscheidungstheoretischen Ansätzen im Hinblick auf den Gemüseanbau erscheint unter dem Aspekt einer nachhaltigen Landnutzung und einer erhöhten Gemüseproduktion notwendig. Es ist ein entscheidender Ansatz dieser Arbeit, die verfügbare Anbauflächen im Kathmandu-Tal in verschiedene Eignungsklassen für den Gemüseanbau zu klassifizieren. Informationen über Zustand und Wert der Anbauflächen wurden aus verschiedensten möglichen Quellen zusammengestellt. Grundsätzliche räumliche und nicht-räumliche Daten wurden einerseits mit Hilfe primärer als auch sekundärer Quellen erfasst. Für den Entscheidungsfindungsprozess wurde sowohl ein ”bottom-up”als auch ein “top-down” Ansatz v erfolgt. Die Methode folgte den Vorgaben der FAO (1976) und den nachfolgenden Fassungen mit einer spezifischen Anpassung an das Untersuchungsgebiet. Der analytische Teil beginnt mit der Entwicklung eines Landesinformationssystems (LIS). Die Evaluation der Beschaffenheit wurde in zwei Phasen durchgeführt, namentlich 1) einer Betrachtung der Bodenfruchtbarkeit 2) einer Evaluation der Sozio-ökonomischen Infrastruktur. Gegenwärtig ist keine Region im hohen Maße fruchtbar (S1) und 31 % bzw. 66 % von insgesamt 23.519 ha fallen in die Kategorien S2 respektive S3. 1.33 % sind nicht nutzbar. Eine potenzielle hohe Bodenfruchtbarkeit kann dann erreicht werden, wenn der derzeitige Bodenzustand durch geeignete Managementmaßnahmen verbessert werden kann. Unter diesem Gesichtspunkt konnten 17.3%, 38.6% bzw. 42.6% des Gebiets mit Hilfe geostatistischer Analysen potenziell den Bodenklassen S1, S2 und S3 zugeordnet werden. Die Ergebnisse dieser Analyse wurden weiterhin mit den Ergebnissen ein er sozio-ökonomischen Evaulation kombiniert. Die Umweltbedingungen, sozialen Parameter und ökonomischen Indikatoren beschreiben die Hauptkriterien der Untersuchung und werden in 15 Unter-Kriterien zur Evaluation der 85 LMU im Untersuchungsgebiet unterteilt. Für eine Einschätzung der Gewichtung der Unter-Kriterien wurde ein paarweiser Vergleich mittels eines AHP-Prozesses ausgearbeitet. Als Endergebnis wurden dann thematische Karten des Kathmandu-Tals erstellt. Die endgültigen Ergebnisse dieser Analyse zeigt, dass 90% des Anbaugebietes im Kathmandu-Tal gut für den Gemüseanbau geeignet sein können und damit etwa mehr als 70% des Bedarfs im Kathmandu-Tal decken kann. Abschließend lässt sich sagen, dass die Ergebnisse dieser Arbeit nicht nur den Bauern der Region vermittelt werden sollten, damit sie das Potenzial ihres Landes bestmöglich ausnutzen können, sie sollten außerdem ein Werkzeug für Landschaftsplaner für eine bessere Planung der Landnutzung darstellen.Kathmandu is a valley situated in hilly area of central Nepal which is famous for agricultural business but in recent years vegetable production is jeopardized due to rampant urbanization and high population growth. For sustainable land use and better condition of vegetable production in Kathmandu, multi-criteria land suitability evaluation is felt necessary. The research objective is set as to classify available agricultural land area of Kathmandu valley into the order of different suitable classes for vegetable crop cultivation. Field level information has been gathered. Spatial and non spatial data were obtained through primary as well as secondary sources. Both bottom-up and Top-down approach for decision making process were applied. Methodology follows the guidelines prepared by FAO (1976) and later version with site specific modification. Analytical part begins with development of Land information System (LIS). Suitability evaluation was carried out in two different pha ses, namely 1) Physical land suitability evaluation and 2) Socio-economic-infrastructural land evaluation. Currently no land units are highly suitable (S1) and 31 and 66 percent area of 23519ha are falls under S2 and S3 category respectively. 1.33 percent land is unsuitable. If land condition is improved and updated from current physical suitability with appropriate management input, potential land suitability will be achieved. So after appropriate management, 17.3, 38.6 and 42.6 percent area computed under potentiality suitability class of S1, S2 and S3 respectively. This result of physical land suitability is combined for the socioeconomic land suitability evaluation. Environmental condition, social parameters and economic indicators were main criteria of study which were fragmented further into 15 sub criteria for evaluation within 85 LMU of study area. Pair-wise comparison using AHP process was carried out for importance judgment of the sub-criteria. The total out put is portrayed in the thematic maps. Final result of the multi-criteria land suitability evaluation show that more than 90 percent land area in Kathmandu can hold good vegetable cultivation. Together they can meet little above 70 percent demand of the Kathmandu valley. So, the result of this study hast to communicate to farmers to make full use of land potential also to land planners for better land use planning.
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Pombrol, Christopher Anthony. "CITE Suitability : an exploration of product evaluation methodologies for developing world technologies." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/93739.
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Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2014.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 135-136).
There are a multitude of technological products that have been developed to improve the lives of bottom of pyramid consumers in the developing world. Unfortunately, many of these products fail to have the desired impact and there is a serious gap in knowledge of what works and what does not work. It is the goal of the Comprehensive Initiative for Technology Evaluation to fill this gap by creating a methodology for evaluating such products. This thesis documents the first efforts of the Suitability team, as part of the Comprehensive Initiative for Technology Evaluation, to develop these product evaluation methodologies. The Suitability team is focused on evaluating the technical performance of these products in a comparative manner with respect to user expectations and use patterns. Two different product evaluation frameworks were developed, implemented, and compared. The first is an attribute-based product evaluation, in the style of Consumer Reports, in which all products under evaluation are subjected to a standardized set of laboratory tests designed to differentiate among products in key performance areas. The second is a problem-based evaluation in which user feedback is gathered in order to guide product testing. Product evaluations were produced using both methods. Both user groups ranked the importance of solar lantern characteristics similarly, with a Kendall's -r coefficient of 0.4545. Each method also had unique advantages, revealing different kinds of information on solar lantern performance. This suggests that it may be useful to employ both methods simultaneously, with-the problem-based evaluation informing the attribute-based evaluation.
by Christopher Anthony Pombrol.
S.M.
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Arnold, Joanna Linda. "The evaluation of the suitability of yeasts for the treatment of silage effluent." Thesis, University of Leeds, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.566146.
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Daian, Mihai Stelian. "Thedevelopment and evaluation of new microwave equipment and its suitability for wood modification." Swinburne Research Bank, 2006. http://hdl.handle.net/1959.3/38305.
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Thesis (PhD) - Swinburne University of Technology, Industrial Research Institute Swinburne, Faculty of Engineering and Industrial Sciences, 2006.[A thesis submitted for the degree of Doctor of Philosophy], Industrial Research Institute Swinburne, Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, 2006. Typescript. Includes bibliographical references (p. 157-165)
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Hedvall, Ellen. "Meritvärdering och rekrytering : Kandidatuppsats om användandet av begreppet personlig lämplighet utifrån ett genusperspektiv." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-51373.
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Recruitment processes includes evaluation of candidates qualifications and employers have the opportunity to found recruitment decisions on candidate personal suitability. What falls under the term personal suitability though, has during the years been a bit unclear. The first purpose of this study is therefor to examine the evaluation of qualifications, the term personal suitability and also employer’s possibilities to use the term in a non-discriminatory way in a recruitment process, this through the legal dogmatic method. The second and third purposes are further to put the evaluation of qualifications and the concept personal suitability in a social context and observe possible risks associated to the recruitment process from a genus perspective. Those purposes and questions are answered through the socio-legal method. The study is a literature study and it is limited to only concern direct discrimination because of gender. The result shows that employers can use the term personal suitability in recruitment processes if the candidate’s educational qualifications and work- and profession experience are equivalent. The employer has to be able show reasons for the decision though, explain why the personal suitability’s were needed and how they are connected to the actual work to make sure that the decision does not constitutes discrimination because of gender. The result also shows several risks associated to the evaluation of qualifications and the term personal suitability. The risks might be caused by the social norms society creates, norms that further creates expectations about how women and men are or should be as employees, leaders and colleagues. These social norms create risks if they affect references, interviewers, employers and recruiters to the extent that one gender becomes mistreated. Social norms are created all over and will most likely continue to exist. They may also be one reason why our labour market is gender segregated and why women in general are given less favorable opportunities and possibilities. The study shows that it is of importance that references, interviewers, employers and recruiters don’t get affected and perceive jobseekers personal suitability based on out-dated and discriminatory norms.
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Woolever, James J. "A critical evaluation of the suitability of Karl Rahner's sacramental ecclesiology for a world church /." San Francisco : Mellen research university press, 1992. http://catalogue.bnf.fr/ark:/12148/cb35583740g.
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Massawe, Boniface Hussein John. "Digital Soil Mapping and GIS-based Land Evaluation for Rice Suitability in Kilombero Valley, Tanzania." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1437397073.
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Rulashe, Turbner Mnyamezeli. "An analysis of the suitability of prescribed geography textbooks for Ciskei pupils in standard 6." Thesis, Rhodes University, 1995. http://hdl.handle.net/10962/d1003303.
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Research has shown that in the South African school context textbooks are perceived as the most important guide to subject content. It is essential, therefore, that pupils and teachers should possess skills and strategies that they can use to interpret and understand the textbook. Equally, textbook writers ought to be aware of the cues pupils need to facilitate the learning process. Problems that hinder the learning of geography subject content from textbooks may arise from, among other things, the style in which the text is written, the way in which concepts are developed, the presentation of visual materials and elements of bias and stereotyping. This study scrutinises and analyses two standard 6 geography textbooks prescribed for Ciskei schools to assess the extent to which these textbooks consider the language competence of the pupils, explain and develop concepts, and in general promote the geographical education. Interviews with Ciskei teachers revealed that Standard 6 pupils encounter difficulties in the geography textbooks which are attributed to the fact that they are second language learners and they lack the requisite skills for interpreting visual materials. The analysis of the textbooks revealed that despite efforts made in recent years to rectify the most blatant aspects of bias and stereotyping and to improve the presentation of textbooks, a number of serious problems continue to exist particularly with regard to the Standard 6 learner of geography. The study attempts to alert writers of texbooks and teachers to factors which need to be taken into consideration to assist second language speakers toward effective learning.
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Kotze, Murison. "An investigation into the suitability of Economic Value Added (EVA) as a measure of performance evaluation." Thesis, Stellenbosch : Stellenbosch University, 2007. http://hdl.handle.net/10019.1/20890.
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Thesis (MBA)--Stellenbosch University, 2007.ENGLISH ABSTRACT: This research report evaluated the concept of Economic Value Added (EVA) and investigated the application of EVA as a performance measure to a particular company. It was found that EVA overcomes some of the problems associated with the traditional measures of company performance. These traditional measures are profit based and are calculated from standard accounting methods. They are inadequate measures to account for the creation of shareholder wealth, as they do not take the full cost of capital into account and also distort the economic reality of the company. It was however observed that there are limitations when applying EVA. It was found that significant effort (and associated costs) could be required to implement an EVA system in a company. The EVA calculation can also become very technical, and is heavily biased by the company's risk index (or beta coefficient), which is also a subjective measure (especially for private companies). In addition, the choice of adjustments to standard accounting methods have a significant impact on whether the company creates or destroys value in terms of EVA, and can lead to a certain degree of manipulation of the EVA calculation. In the case of the particular company reviewed, it was however found that these potential limitations were overshadowed by the benefits that can be gained from the increased focus on the creation of shareholder wealth that comes from the implementation ofEV A. It was concluded that should EVA be fully implemented at this particular company, it could form the backbone of the financial management and employee incentive system, guiding decisions made at all levels, and changing company culture so that every employee thinks and acts like an owner of the company.
AFRIKAANSE OPSOMMING: Hierdie navorsingsverslag het die konsep van Ekonomiese Toegevoegde Waarde (ETW) geevalueer, en ook die toepassing van ETW as prestasiemaatstaf by 'n spesifieke maatskappy ondersoek. Daar is gevind dat ETW sommige van die probleme wat geassosieer kan word met tradisionele maatstawwe van maatskappy prestasie (wins gebaseerde maatstawwe wat bereken word met die standaard rekenkundige metodes) kan oorkom. Hierdie maatstawwe is nie voldoende om die skepping van aandeelhouer welvaart te bereken nie, aangesien hulle nie die volle koste van kapitaal in berekening bring nie, en ook die ekonomiese realiteit van die maatskappy verwring. Daar is weI uitgewys dat ETW sekere beperkings het. Daadwerklike inspanning (asook gepaardgaande koste) kan nodig wees om 'n volle ETW implimentasie uit te voer, en die berekening van ETW kan ook baie tegnies wees. Die berekening word ook heweglik beinvloed deur die beta-koeffisient, wat op sy beurt ook 'n subjektiewe maatstaf is - veral vir privaat maatskappye. Gepaardgaande hiermee het die keuse van aanpassings aan die standaard rekenkundige metodes ook 'n groot impak op die eindproduk van ETW - of 'n maatskappy welvaart skep of vernietig. Dit kan op sy beurt lei tot 'n mate van manipulasie van die ETW berekening. In die geval van die spesifieke maatskappy wat ondersoek is in die navorsingsverslag was dit egter gevind dat die potensiele beperkings van ETW oorskadu word deur die voordele wat kan voortspruit uit die verhoogde fokus op die skepping van aandeelhouer welvaart wat gepaard gaan met die implementering van ETW. Daar was tot die slotsom gekom dat indien ETW ten volle implementeer sou word by die spesifieke maatskappy, dit die steunpilaar van die finansiele bestuur en werknemer vergoeding stelsel kan word, besluite op aIle vlakke kan beYnvloed, en die maatskappy se kultuur kan verander sodat elke werknemer kan dink en optree soos 'n eienaar van die maatskappy.
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Muthukumaraswamy, Sivakumar Vijay. "An Evaluation of the Linux Virtual Memory Manager to Determine Suitability for Runtime Variation of Memory." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/31608.
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Systems that support virtual memory virtualize the available physical memory such that the applications running on them operate under the assumption that these systems have a larger amount of memory available than is actually present. The memory managers of these systems manage the virtual and the physical address spaces and are responsible for converting the virtual addresses used by the applications to the physical addresses used by the hardware. The memory managers assume that the amount of physical memory is constant and does not change during their period of operation. Some operating scenarios however, such as the power conservation mechanisms and virtual machine monitors, require the ability to vary the physical memory available at runtime, thereby making invalid the assumptions made by these memory managers.
In this work we evaluate the suitability of the Linux Memory Manager, which assumes that the available physical memory is constant, for the purposes of varying the memory at run time. We have implemented an infrastructure over the Linux 2.6.11 kernel that enables the user to vary the physical memory available to the system. The available physical memory is logically divided into banks and each bank can be turned on or off independent of the others, using the new system calls we have added to the kernel. Apart from adding support for the new system calls, other changes had to be made to the Linux memory manager to support the runtime variation of memory. To evaluate the suitability for varying memory we have performed experiments with varying memory sizes on both the modified and the unmodified kernels. We have observed that the design of the existing memory manager is not well suited to support the runtime variation of memory; we provide suggestions to make it better suited for such purposes.
Even though applications running on systems that support virtual memory do not use the physical memory directly and are not aware of the physical addresses they use, the amount of physical memory available for use affects the performance of the applications. The results of our experiments have helped us study the influence the amount of physical memory available for use has on the performance of various types of applications. These results can be used in scenarios requiring the ability to vary the memory at runtime to do so with least degradation in the application performance.Master of Science
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Pettersson, William. "An Evaluation of IoT Protocol Efficiency and suitability : For smart vehicles, smart homes & industrial scenarios." Thesis, Mittuniversitetet, Institutionen för informationssystem och –teknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-42392.
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Internet of things (IoT) är det överläggande området i denna rapport. IoT är ett väldigt intressant I nuläget och är snabbt växande. IoT kan beskrivas som ett nätverk av kommunicerande enheter som delar information och automatiserar eller försimplar uppgifter och därav ökar effektivitet och säkerhet. Området växer så pass fort att det förväntas vara 24 miljarder anslutna enheter vid år 2050, denna utökning leder i sin tur till ett ökat behov av förståelse för IoT protokollen som hanterar kommunikationen emellan enheterna. Detta för att kunna välja det mest optimala protokollet för ett givet scenario. Detta arbete kommer att välja ett lovande protokoll för undersökning samt evaluering gällande dess prestation berörande fördröjning, dataöverföringshastighet och skalbarhet. Protokollet som valdes var MQTT (Message Queuing Telemetry Transport). Baserat på dessa evaluerade värden föra en diskussion gällande protokollets lämplighet inom scenariona. Värdena kommer att tas fram via tidmätningar start till slut för kommunikationen samt tid för att skicka en mängd meddelanden, båda i respekt till antalet samtidigt kommunicerande program. Testen körs med en lokal PC som agerar Broker och en Raspberry Pi som kör samtliga programmen i individuella terminaler. Resultaten var att fördröjningen verkar ha en näst intill linjär relation och dataöverföringshastighet ett exponentiellt avtagande beteende i respekt till samtidigt kommunicerande enheter. Dem mätta resultaten analyseras och diskuteras, och kommer till slutsatsen att protokollet är en lämplig kandidat för de flesta scenarion, så som smarta bilar, smarta hem och till viss del industriell användning. Den största nackdelen med protokollet var dess höga standardavvikelse gällande individuella meddelandens fördröjning.Internet of things (IoT) is the base topic of this thesis, and it is a rapidly growing area, it can be described as a network of communicating devices sharing information and streamlining tasks in addition to increasing efficiency and security. It is expected to be 24 billion connected devices by year 2050 and with this growth comes an increased demand on understanding the IoT protocols to be able to choose a suitable protocol for a given scenario. This thesis will discuss this area and pick one protocol to evaluate specifically regarding latency, throughput, and scalability. The protocol chosen were MQTT (Message Queuing Telemetry Transport). Based on these values then discuss whether the protocol is a suitable candidate for the scenarios. The data to evaluate this will be gathered by measuring the end-to-end time of the protocol in respect to the number of communicating programs, and to measure the time it takes to communicate a number of messages with respect to the number of programs handling the communication. These tests are performed with a local PC acting as the broker and a Raspberry pi running each of the communicating programs on individual terminals. The results were that latency seem to have a close to liner relation, and that throughput seem to have an exponentially decreasing relation with respect to number of clients cooperating. The measured results are analyzed and discussed and concluded that the protocol is a fitting candidate for most scenarios such as smart cars, smart homes and to some extent industry. The biggest flawed concluded was the protocols high standard deviation for individual messages latency. The outcome of the benchmarks measurement showed that increasing the number of nodes would not result in superior performance. It was noted that an optimal number of nodes was found to be between 1 and 20 for all the tests performed. The study showed that no load balancer could be considered a clear winner, instead, different configurations of load balancers performed varyingly well at different tests.
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Tonkovich, Michael Joseph. "Field evaluation of the northern bobwhite habitat suitability index model with implications for the conservation reserve program /." This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-06062008-162348/.
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Tonkovich, Michael J. "Field evaluation of the northern bobwhite habitat suitability index model with implications for the conservation reserve program." Diss., Virginia Tech, 1995. http://hdl.handle.net/10919/38183.
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Bravo, Vinaja Maria Guadalupe. "Evaluation of landscape level habitat characteristics of golden eagle habitat in Northwestern Mexico." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/39683.
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Golden eagles (Aquila chrysaetos canadensis Linnaeus 1758) are declining in some areas throughout their Nearctic range (Sauer et al. 2011). This reduction is linked to changes in their habitat caused by human activities. Golden eagles inhabit an extensive range of environments (Watson 1997, Kochert et al. 2002). In the American Continent, the golden eagleâ s range encompasses Alaska, Canada, the United States and the Northern and Central portions of Mexico. Northern golden eagle populations migrate during winter to southern grounds, crossing international boundaries of Canada, the US and Mexico and therefore, their conservation is of trilateral concern. Golden eagles are protected by domestic laws in the three North American countries where they occur (FWCA 1997, BGEPA 1940, MBTA 1918, Lacey Act 1900, DOF 2002) and although the IUCN list the species as Least Concern, the A. c. canadensis subspecies has been protected by CITES since 1975 (Birdlife International 2012).
While intensively studied in the United States, very little is known in Mexico about golden eagle ecology and their populations. As the national bird of Mexico, its conservation has been a priority for the Mexican government since its inclusion in the Endangered Species List in 1994 (SEDESOL 1994). Several threats jeopardize golden eagle populations throughout their range in North America: habitat alteration and fragmentation, electrocution, collisions with vehicles, collision with windmills and wires, poisoning from lead ingestion, drowning, shooting and trapping, and poaching for illegal wildlife trade. Mexican experts believe that a dramatic decline occurred over recent decades and that the remaining pairs have been restricted to remnant suitable habitat patches (SEMARNAP-INE 1999). Long-term survival of golden eagles largely depends on the effectiveness of current conservation efforts of habitat at a landscape level. Successful conservation and management requires accurate information on ecology of the species upon which decisions can be based. This study investigated habitat characteristics of the areas occupied by golden eagles and developed strategies for habitat management and protection to improve golden eagle viability in Chihuahua State.
I surveyed a portion of Chihuahuan Desert Ecoregion in Mexico to locate golden eagle territories during 2009 and 2010. I located 30 golden eagle nesting territories and found similar composition of cover type, vegetation structure and prey indices between the territory cores and their buffer zones. Distance to most anthropogenic disturbance sources was similar between golden eagle sites and random areas (n=60). Grassland was the most common cover type, occurring in 100% of the nesting territories, and comprising 58% of the territoriesâ area, suggesting a disproportionate use of this cover type compared to its overall availability (25% of the state area).
I used landscape attributes such as topographic characteristics and human disturbances to model the probability of occurrence of golden eagles across the landscape. I used logistic regression to model the occurrence of golden eagles at two different landscape scales and selected the best model at a home range scale based on AIC values to develop a predictive map of golden eagle distribution in Chihuahua, Mexico. I found that at a home range scale, golden eaglesâ occurrence was positively related to open areas and terrain ruggedness and negatively to human settlements, while at a larger scale it was positively related to open areas and negatively related to forested areas. The results confirm that golden eagles are dependent on grasslands and rugged terrain. I developed predictive maps of golden eagle occurrence using a logistic regression and a Mahalanobis distance approach using the variables from the model chosen to compare the performance and output with logistic regression modeling.
I analyzed the Mexican National Plan for Golden Eagle Recovery (PACE - Ã guila Real) and proposed a conservation strategy oriented to protect golden eagle populations and their habitat in Chihuahua, Mexico. This strategy integrates ecologic knowledge developed in the first two chapters and incorporates social participation of all stakeholders. The strategy recognizes the potential limitations of conservation implementation programs in Mexico and explores the potential opportunities to protect golden eagles populations and their habitat.Ph. D.
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Fourie, Frana. "Evaluation of the suitability of responses on various organisational levels in terrestrial Oligochaeta to determine species sensitivity relationships." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/6906.
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Thesis (PhD)--Stellenbosch University, 2011.ENGLISH ABSTRACT: Species differ in their sensitivities to toxicants and these differences are exploited in ecological risk assessment methods such as species sensitivity distributions (SSDs). The most commonly used endpoints for ecotoxicity testing and thus to generate data for use in SSDs are on the whole-organismal level, and usually include the evaluation of survival and reproduction. However, suborganismal biomarker responses are in many instances more sensitive than these whole-organismal responses. Therefore, this study investigated and compared responses on various biological organisational levels to determine their suitability for use in SSDs. Five terrestrial oligochaete species (earthworms) were selected as model test organisms, and were exposed to a range of concentrations of a well-studied pesticide, copper oxychloride. The investigated responses included survival, biomass change and reproduction on the whole-organismal level. In order to investigate responses on the suborganismal level, cells (coelomocytes) were extracted non-invasively. The spectrophotometric neutral red retention (NRR) assay was used to determine cell survival and the MTT assay to determine mitochondrial metabolic activity of the coelomocytes. The alkaline single cell gel electrophoresis (comet) assay was used to assess DNA integrity in these cells. The amount of Cu taken up by earthworms was also determined and compared to their responses. Species differences were observed in all responses, and EC50 and EC10 values were calculated for the whole-organismal endpoints and used to generate SSDs. From these SSDs, the hazardous concentrations where 5% of all species would be detrimentally affected (HC5) were calculated, which indicated that the most sensitive whole-organismal endpoint was mass change, followed by reproduction and survival. It was found that earthworms avoided feeding on the contaminated substrate in high copper oxychloride concentration exposures. The concentration where this behaviour occurred could be estimated for each species, and an SSD was constructed with these data. The HC5 value indicated that this response is more sensitive than earthworm survival, but less sensitive than the other responses. It was shown that the earthworms regulated their body Cu concentrations in a species-specific manner. This regulation of Cu was reflected in the suborganismal responses, and the species that had taken up the highest amount of Cu was the most sensitive species for all three suborganismal assays. Due to this regulation of Cu, the resulting dose-responses for the suborganismal endpoints did not allow for the calculation of EC50 values in most of the species and such data could thus not be used to generate SSDs. Sufficient EC10 values were however generated to construct SSDs from the results of the NRR and comet assays. The HC5 values obtained from SSDs constructed with EC10 values for both suborganismal and whole-organismal endpoints indicated that the NRR assay was the most sensitive endpoint, followed by both the comet assay and earthworm mass change, and subsequently the other whole-organismal endpoints. In conclusion, the majority of the responses on the various levels of biological organisation investigated during the present study were shown to be suitable to determine species sensitivity relationships in the terrestrial oligochaete species studied.
AFRIKAANSE OPSOMMING: Spesies verskil van mekaar ten opsigte van hulle sensitiwiteit vir toksikante, en hierdie verskille word in ekologiese risikobepalingsmetodes soos spesie-sensitiwiteitsverspreidings (SSVs) gebruik. Die mees algemene eindpunte vir ekotoksisiteitstoetse, en wat dus gebruik word om data te genereer vir SSVs, is op die heelorganismevlak, en sluit gewoonlik die bepaling van oorlewing en voortplanting van die toetsorganismes in. Hierdie eindpunte is egter in die meeste gevalle minder sensitief as suborganismiese biomerker-response. Hierdie studie het dus die response op verskeie vlakke van biologiese organisasie ondersoek en vergelyk om te bepaal of hulle geskik is vir gebruik in SSVs. Vyf terrestriële spesies van die klas Oligochaeta is gekies as toetsorganismes en is blootgestel aan 'n reeks konsentrasies van die goed bestudeerde pestisied koperoksichloried. Die response oorlewing, massaverandering en voortplanting is op die heelorganismevlak ondersoek. Vir die suborganismiese response is selle (selomosiete) met behulp van 'n nie-ingrypende proses vanuit die erdwurms geïsoleer. Die suborganismese toetse wat op hierdie selle gedoen is, was die neutraalrooi-retensietoets (NRR toets) om sel-oorlewing te bepaal, die MTT toets om mitochondriese metabolisme te bepaal en die alkaliese komeettoets om DNS-integriteit te bepaal. Die hoeveelheid Cu wat die erdwurms opgeneem het, is ook bepaal en met hulle response vergelyk. Verskille is tussen die spesies waargeneem vir al die response. Beide EK50 en EK10 waardes is bereken vir die heelorganismiese eindpunte om SSVs te genereer. Vanaf hierdie SSVs kon die gevaarlike konsenstrasie, waar 5% van alle spesies nadelig beïnvloed kan word (GK5), bereken word. Hierdie GK5 waardes het aangedui dat massaverandering die mees sensitiewe heelorganismiese eindpunt was, gevolg deur voortplanting en oorlewing. Die erdwurms het opgehou vreet aan die gekontamineerde substraat by hoë koperoskichloriedkonsentrasies. Die konsentrasie waar hierdie gedrag plaasgevind het kon vir elke spesie vasgestel word, en 'n SSV is met behulp van hierdie data genereer. Hierdie GK5 waarde het aangedui dat hierdie respons meer sensitief was as oorlewing, maar minder sensitief as die ander response. Die erdwurms kon die konsentrasie van Cu in hulle liggame op 'n spesie-spesifieke manier reguleer. Hierdie regulering van interne Cu is weerspieël in die suborganismiese response, waar die spesie wat die meeste Cu opgeneem het, ook die mees sensitiewe was vir al drie suborganismiese toetse. As gevolg van hierdie regulering van Cu en die gevolglike dosis-responsverhoudings, kon EK50-waardes nie vir al die spesies bereken word nie, en dus was daar geen EK50-data beskikbaar om SSVs mee te genereer nie. Genoegsame EK10 waardes kon egter bereken word vir die NRR- en komeettoetse, en gebruik word om SSVs te genereer. Die GK5-waardes wat bereken kon word vanuit die SSVs met EK10 waardes vir beide suborganismese en heelorganismiese response, het aangedui dat die mees sensitiewe eindpunt die NRR toets was, gevolg deur beide die komeettoets en massaverandering van erdwurms, en daarna die ander heelorganismiese eindpunte. Die gevolgtrekking is dat daar aangetoon kon word dat die meerderheid van die response wat gedurende hierdie studie ondersoek is, geskik is om sensitwiteitsverhoudings van hierdie groep spesies te bepaal.
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Alves, Helena Maria Ramos. "Quantitative land suitability evaluation using readily available data sources : a case study of maize in Minas Gerais, Brazil." Thesis, University of Reading, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335886.
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Mekonnen, Addisu Dereje. "Wind Farm Site Suitability Analysis in Lake Erie Using Web-Based Participatory GIS (PGIS)." Bowling Green State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1392975809.
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Mohamed, Hamad O. "Land suitability evaluation, improving accuracy of assessments with a new paradigm based on geostatistical estimation and fuzzy set theory." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0015/MQ57975.pdf.
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Higgs, Fiona. "Evaluation of a shortened PSI intervention and establishing the suitability of PNF for inclusion in exercise-based falls prevention intervention." Thesis, Aberystwyth University, 2014. http://hdl.handle.net/2160/a38706d0-4d24-4eaa-9edb-dbc65f3c5987.
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Falling increases with age. Increasing falls incidence and associated injuries sustained by the growing older adult population contributes towards an increasing strain placed on local health services. Long-term exercise interventions have elicited signi cant reductions in falls incidence in community-dwelling older adults, and may be used in a preventative manner to reduce fall incidence in older adult populations. However, the e ectiveness of shorter interventions is less well-known. Study One of this thesis identi ed that an 18-week postural stability instruction (PSI) programme is e ective in reducing fall prevalence in frail older adults by 33%, and may improve health-related quality of life, con dence, and clinic-based strength and balance measures. However, gait performance and whole body lean mass remain unchanged. Study Two established that proprioceptive neuromuscular facilitation (PNF) stretching does not cause acute de cits in strength or muscle activation in the plantar exors and is safe for use by healthy older adults as a exibility training component of PSI interventions. Study Three found chronic strength and exibility gains following completion of a 4-week PNF stretching intervention at the ankle in old and young adults, without any acute strength de cits. Chronic strength gains during higher velocity contractions were demonstrated in dorsi exion in the older group, while exibility gains demonstrated during knee exion suggests a training e ect on the soleus muscle. These ndings indicate that and 18-week PSI programme reduces falls risk and prevalence, and that PNF training at the ankle may be used safely and e ectively by healthy older adults to improve strength and exibility. Re nement of individual PSI components to ensure implementation of the most e ective and age-appropriate strength, balance and exibility training methods is warranted. Speci cally there is a need for research to examine changes in falls incidence and risk factors following completion of an 18-week PSI intervention that incorporates PNF stretching.
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O'Leary, Rebecca A. "Informed statistical modelling of habitat suitability for rare and threatened species." Queensland University of Technology, 2008. http://eprints.qut.edu.au/17779/.
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In this thesis a number of statistical methods have been developed and applied to habitat suitability modelling for rare and threatened species. Data available on these species are typically limited. Therefore, developing these models from these data can be problematic and may produce prediction biases. To address these problems there are three aims of this thesis. The _rst aim is to develop and implement frequentist and Bayesian statistical modelling approaches for these types of data. The second aim is develop and implement expert elicitation methods. The third aim is to apply these novel approaches to Australian rare and threatened species case studies with the intention of habitat suitability modelling. The _rst aim is ful_lled by investigating two innovative approaches for habitat suitability modelling and sensitivity analysis of the second approach to priors. The _rst approach is a new multilevel framework developed to model the species distribution at multiple scales and identify excess zeros (absences outside the species range). Applying a statistical modelling approach to the identi_cation of excess zeros has not previously been conducted. The second approach is an extension and application of Bayesian classi_cation trees to modelling the habitat suitability of a threatened species. This is the _rst `real' application of this approach in ecology. Lastly, sensitivity analysis of the priors in Bayesian classi_cation trees are examined for a real case study. Previously, sensitivity analysis of this approach to priors has not been examined. To address the second aim, expert elicitation methods are developed, extended and compared in this thesis. In particular, one elicitation approach is extended from previous research, there is a comparison of three elicitation methods, and one new elicitation approach is proposed. These approaches are illustrated for habitat suitability modelling of a rare species and the opinions of one or two experts are elicited. The _rst approach utilises a simple questionnaire, in which expert opinion is elicited on whether increasing values of a covariate either increases, decreases or does not substantively impact on a response. This approach is extended to express this information as a mixture of three normally distributed prior distributions, which are then combined with available presence/absence data in a logistic regression. This is one of the _rst elicitation approaches within the habitat suitability modelling literature that is appropriate for experts with limited statistical knowledge and can be used to elicit information from single or multiple experts. Three relatively new approaches to eliciting expert knowledge in a form suitable for Bayesian logistic regression are compared, one of which is the questionnaire approach. Included in this comparison of three elicitation methods are a summary of the advantages and disadvantages of these three methods, the results from elicitations and comparison of the prior and posterior distributions. An expert elicitation approach is developed for classi_cation trees, in which the size and structure of the tree is elicited. There have been numerous elicitation approaches proposed for logistic regression, however no approaches have been suggested for classi_cation trees. The last aim of this thesis is addressed in all chapters, since the statistical approaches proposed and extended in this thesis have been applied to real case studies. Two case studies have been examined in this thesis. The _rst is the rare native Australian thistle (Stemmacantha australis), in which the dataset contains a large number of absences distributed over the majority of Queensland, and a small number of presence sites that are only within South-East Queensland. This case study motivated the multilevel modelling framework. The second case study is the threatened Australian brush-tailed rock-wallaby (Petrogale penicillata). The application and sensitivity analysis of Bayesian classi_cation trees, and all expert elicitation approaches investigated in this thesis are applied to this case study. This work has several implications for conservation and management of rare and threatened species. Novel statistical approaches addressing the _rst aim provide extensions to currently existing methods, or propose a new approach, for identi _cation of current and potential habitat. We demonstrate that better model predictions can be achieved using each method, compared to standard techniques. Elicitation approaches addressing the second aim ensure expert knowledge in various forms can be harnessed for habitat modelling, a particular bene_t for rare and threatened species which typically have limited data. Throughout, innovations in statistical methodology are both motivated and illustrated via habitat modelling for two rare and threatened species: the native thistle Stemmacantha australis and the brush-tailed rock wallaby Petrogale penicillata.
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Lamb, Ashley B. "Evaluating the suitability of Laricobius nigrinus Fender (Coleoptera: Derodontidae), a biological control agent for hemlock woolly adelgid, Adelges tsugae Annand (Hemiptera: Adelgidae)." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/27436.
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Hemlock woolly adelgid (HWA), Adelges tsugae Annand (Hemiptera: Adelgidae), is an introduced pest injurious to hemlock trees (Tsuga spp.) in the eastern United States. HWA currently infests hemlock in over 50% of its geographic range and has the potential to spread throughout its entire range. Since HWA populations in the eastern United States are not regulated effectively by natural enemies (Wallace and Hain 2000), classical biological control is the most promising option for controlling this pest in the forest setting. This work evaluates Laricobius nigrinus Fender (Coleoptera: Derodontidae), a predator associated with HWA in western North America, is being evaluated as a potential biological control agent for HWA (Cheah et al. 2004). Observations suggest that natural enemies may help keep HWA populations below injurious levels in the western United States (Mausel, pers. comm.).
Laboratory studies have revealed that L. nigrinus feed selectively on HWA and field studies in British Columbia, Canada have shown that its lifecycle is highly synchronous with HWA phenology. This predator is being further evaluated for its suitability as a biological control agent. In order to be a viable candidate, L. nigrinus must survive under natural field conditions in the eastern United States, reduce the density of HWA, and it must be amenable to mass rearing.
The survival, reproductive capability and predator efficiency of L. nigrinus were assessed over 3 years in the field. In addition, the environmental factors regulating processes in the life cycle to develop and improve rearing procedures for this insect were identified. In the first year, adults survived from February - May, laid up to 41 eggs/beetle, and consumed approximately 4.3 adelgids per day. In the second season, L. nigrinus adults survived from November - April, laid up to 38 eggs/beetle and consumed approximately 4.5 adelgids per beetle throughout the study. In both seasons, adelgid populations were significantly lower on branches with predators than those without predators. This impact was demonstrated on both the winter and spring generation of HWA. The feasibility of caged field releases of L. nigrinus was determined in a third field study. An estimated 10, 000 L. nigrinus eggs were liberated in field cages in spring 2003. The density of adelgids in the subsequent (spring) generation of the adelgids was significantly lower on branches with larval activity than those with no predators. Despite extensive sampling, no F1 adults were observed, however F2 adults were recovered in the fall of 2004, 20 months after release.
The L. nigrinus life stages incurring high mortality during rearing were identified and factors affecting survival in the feeding and non-feeding life stages were investigated. Studies on the survival and feeding of adults, length of ovipositional period, density per cage, and survival of larvae were conducted. The effect of type of pupation medium, moisture level, disturbance, soil sterilization, temperature, and photoperiod on survival of the non-feeding stages and time of emergence from aestivation was examined. The most noteworthy finding, regarding rearing, is that aestivation can be extended by storing adults at high temperatures and long daylength throughout the summer and decreasing the temperature and daylength in the fall. Based on the results of these studies, procedures for rearing L. nigrinus have been developed and it is currently being reared at two other institutions. To date, over 8, 000 adults produced at Virginia Tech have been released in 6 states and both F1 and F2 adults have been recovered from multiple locations.Ph. D.
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Elaalem, Mukhtar. "The application of land evaluation techniques in Jeffara Plain in Libya using fuzzy methods." Thesis, University of Leicester, 2010. http://hdl.handle.net/2381/8918.
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This research compares three approaches to land suitability evaluation, Boolean, Fuzzy AHP and Ideal Point, for barley, wheat and maize crops in the north-western region of Jeffara Plain in Libya. A number of soil and landscape criteria were identified to accommodate the three cash crops under irrigation conditions and their weights specified as a result of discussions with local experts. The findings emphasised that soil factors represented the most sensitive criteria affecting all the crops considered. In contrast, erosion and slope were found to be less important in the study area. Using Boolean logic the results indicated only four suitability classes (highly suitable, moderately suitable, marginally suitable and currently not suitable) for all crops. In contrast, the results obtained by adopting the Fuzzy AHP and Ideal Point approaches revealed that the area of study has a greater degree of subdivision in land suitability classes. Overall, the results of the three approaches indicated that the area under consideration has a good potential to produce barley, wheat and maize under irrigation provided that the water and drainage requirements are met. Comparing the three models showed that each suitability class derived from the Boolean approach is associated with low and high values for joint membership functions when derived from Fuzzy AHP and Ideal Point approaches respectively. In other words, the two fuzzy approaches have shown their ability to explore the uncertainties associated with describing the land properties. The richer overall picture provides an alternative type of land suitability evaluation to Boolean approaches and allows subtle variations in land suitability to be explored. The Fuzzy AHP approach was found to be better than the Ideal Point approach; the latter was biased towards positive and negative ideal values. In the future, field trial plots will be needed to evaluate and validate the results further.
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Ncapai, Wandile. "Exploring the suitability of the evaluation criteria used in the MPT projects, by looking at hard and soft components of development programmes." Thesis, Rhodes University, 2002. http://hdl.handle.net/10962/d1018255.
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The study explores the suitability of the evaluation criteria used in Microprojects Programme Trust (MPT), by looking at hard and soft components of the development programme. In this sense hard components of development refer to those components of projects that are tangible and can be physically observed and can bring material changes to the life of the community. Soft components of development refer to those components of projects that bring qualitative transformation to the life of the community, i.e. increased levels of awareness, human well-being and the empowerment process that addresses the community's abstract needs, these are not tangible and often cannot be physically observed. Midway through its contract periods MPT evaluate all projects. The purpose of these mid term evaluations is to make recommendations to MPT on future approaches and methodology for community development and operations. The mid-term evaluation also influences the distribution and allocation of resources and funding. It was therefore vital that the criteria used are subject to tests and critical analysis so as to assess their validity. The assessment of the mid-term evaluation criteria used in MPT projects has been to further determine the appropriateness or suitability of the evaluation criteria as an instrument to measure and guide the MPT community development approach in the Eastern Cape. The method used was to conduct focus group discussions so as to get an insight into the local community situation as well as to assess non-tangible improvements and changes that have occurred in the life of the community as a result of the project. The information generated was used to compare what the community believe they achieved with what the official mid-term evaluation reports indicate was assessed and achieved and that was contrasted with what the literature recommends should have been assessed. The study found that the mid-term evaluations conducted on MPT projects have no social context in which the evaluations themselves were conducted. The terms of reference and criteria were based on the programme design which was formulated and compiled by the European Union without the participation of the local South African community. The findings also indicated that projects become unsuccessful or partly successful if the "soft" components which have a bearing on social and economic realities are neglected. The thesis ends with recommendations on how the mid-term evaluations as well as MPT programme can be developed to be more responsive to the needs as identified by the communities themselves. It is strongly believed that this study will provide a valuable contribution towards increasing the ability of MPT programme to bring about both material and qualitative transformation to the I ives of the disadvantaged community of the Eastern Cape whilst ensuring that the mid-term evaluations are developed and shaped to become an appropriate instrument to measure and guide MPT programme approach to community development.
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Hofstedt, Charlotta. "Wastewater use in Agriculture in Andhra Pradesh, India : An evaluation of irrigation water quality in reference to associated health risks and agricultural suitability." Thesis, Uppsala University, Department of Earth Sciences, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88888.
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Användandet av obehandlat avloppsvatten inom jordbruket är en växande företeelse i många delar av världen. Speciellt i vattenfattiga områden där avloppsvattnet ses som en värdefull och pålitlig resurs. Det höga näringsinnehållet minskar behovet av konstgödsel och detta ökar böndernas inkomster. Men med användandet av avloppsvattnet följer vissa hälsorisker. Bland annat har man sett en högre förekomst av inälvsmaskar hos bönder som använder orenat avloppsvatten jämfört med de som använder rent vatten. Den här vattenkvalitetstudien har utförts längs floden Musi i Andhra Pradesh, Indien. Musi rinner igenom staden Hyderabad och mycket av stadens avloppsvatten dumpas i floden. Nedströms Hyderabad används detta vatten för bevattning. Längs med floden är dammar byggda, för att avleda vattnet i bevattningskanaler. Reservoirer bildas då flödeshastigheten minskar. Studieområdet sträcker sig från Hyderabad och 28.7 km nedströms. Hypotesen var att reservoirerna fungerar som biodammar och syftet var att kvantifiera dammarnas inverkan på vattenkvaliteten och utvärdera dess lämplighet utifrån ett hälso- och jordbruksperspektiv. Inom studieområdet är reningen med avseende på BOD, Nematoder och E coli 86,9%, 99,9% respektive 99,9%. Trots att reningen är så hög överstiger Nematod- och E coli-koncentrationerna Världshälsoorganisationens riktlinjer och utgör en hälsorisk för bönder och konsumenter. Syre- och salthalt ökar nedströms och den höga salthalten kan ha negativ inverkan på jordbrukets avkastning. Genom att titta på reningsmönster och förändring av olika vattenkvalitetsparametrar är en av slutsatserna av detta arbete att reningen i dammarna motsvarar den rening som sker i de anaeroba bassängerna i ett biodammsystem.
The use of untreated domestic sewage in agriculture is a growing practice in many parts of the world. It is being looked upon as a valuable and reliable resource in water scarce communities. Wastewater is usually rich in nutrients and the use results in high yields without the need for artificial fertilisers. But with the use of untreated wastewater follows a number of associated health risks, e.g. a higher prevalence of helminth infections has been seen among wastewater users compared to non-users. This water quality study was performed along the River Musi in Andhra Pradesh, India. The Musi River flows through the city of Hyderabad carrying the most of the town’s wastewater. Downstream of Hyderabad the wastewater is used by farmers for irrigation. Along the river weirs are constructed which diverts the irrigation water into canals and reservoirs are formed where the flow velocity slows down. The study area stretches from Hyderabad and 28.7 km downstream. The hypothesis was that the existing irrigation infrastructure acts like Wastewater Stabilisation Ponds and the aim was to quantify the impact of the weirs on water quality and to evaluate the irrigation water quality in reference to associated health risks and agricultural suitability. Within the study area the BOD, E coli and Nematode removals were 86.9%, 99.9% and 99.9% respectively. Despite the high removal the E coli and Nematodes, the concentrations exceed WHO guidelines for unrestricted and restricted irrigation, and there exists an excess risk of intestinal nematode- and enteric infections for farmers. Dissolved oxygen and salinity increases downstream and due to the high salinity farmers could experience reduced crop yields. By looking at removal patterns, and the change in water quality parameters, the conclusion can be made that the reservoirs act like anaerobic ponds in a Wastewater Stabilisation Pond system.
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Chan, Pik-shan Esther, and 陳碧珊. "Assessing the suitability of English language teaching materials at primary level: a comparative evaluation oftextbooks for the Hong Kong (1981) primary English syllabus." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1985. http://hub.hku.hk/bib/B42128213.
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Huynh, Van-Chuong. "Multi-criteria land suitability evaluation for selected fruit crops in hilly region of Central Vietnam with case studies in Thua Thien Hue province." Aachen Shaker, 2007. http://d-nb.info/99056763X/04.
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Gomes, Monique Martins. "Spatial crash prediction models: an evaluation of the impacts of enriched information on model performance and the suitability of different spatial modeling approaches." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/18/18144/tde-18022019-112104/.
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The unavailability of crash-related data has been a long lasting challenge in Brazil. In addition to the poor implementation and follow-up of road safety strategies, this drawback has hampered the development of studies that could contribute to national goals toward road safety. In contrast, developed countries have built their effective strategies on solid data basis, therefore, investing a considerable time and money in obtaining and creating pertinent information. In this research, we aim to assess the potential impacts of supplementary data on spatial model performance and the suitability of different spatial modeling approaches on crash prediction. The intention is to notify the authorities in Brazil and other developing countries, about the importance of having appropriate data. In this thesis, we set two specific objectives: (I) to investigate the spatial model prediction accuracy at unsampled subzones; (II) to evaluate the performance of spatial data analysis approaches on crash prediction. Firstly, we carry out a benchmarking based on Geographically Weighted Regression (GWR) models developed for Flanders, Belgium, and São Paulo, Brazil. Models are developed for two modes of transport: active (i.e. pedestrians and cyclists) and motorized transport (i.e. motorized vehicles occupants). Subsequently, we apply the repeated holdout method on the Flemish models, introducing two GWR validation approaches, named GWR holdout1 and GWR holdout2. While the former is based on the local coefficient estimates derived from the neighboring subzones and measures of the explanatory variables for the validation subzones, the latter uses the casualty estimates of the neighboring subzones directly to estimate outcomes for the missing subzones. Lastly, we compare the performance of GWR models with Mean Imputation (MEI), K-Nearest Neighbor (KNN) and Kriging with External Drift (KED). Findings showed that by adding the supplementary data, reductions of 20% and 25% for motorized transport, and 25% and 35% for active transport resulted in corrected Akaike Information Criterion (AICc) and Mean Squared Prediction Errors (MSPE), respectively. From a practical perspective, the results could help us identify hotspots and prioritize data collection strategies besides identify, implement and enforce appropriate countermeasures. Concerning the spatial approaches, GWR holdout2 out performed all other techniques and proved that GWR is an appropriate spatial technique for both prediction and impact analyses. Especially in countries where data availability has been an issue, this validation framework allows casualties or crash frequencies to be estimated while effectively capturing the spatial variation of the data.A indisponibilidade de variáveis explicativas de acidentes de trânsito tem sido um desafio duradouro no Brasil. Além da má implementação e acompanhamento de estratégias de segurança viária, esse inconveniente tem dificultado o desenvolvimento de estudos que poderiam contribuir com as metas nacionais de segurança no trânsito. Em contraste, países desenvolvidos tem construído suas estratégias efetivas com base em dados sólidos, e portanto, investindo tempo e dinheiro consideráveis na obtenção e criação de informações pertinentes. O objetivo dessa pesquisa é avaliar os possíveis impactos de dados suplementares sobre o desempenho de modelos espaciais, e a adequação de diferentes abordagens de modelagem espacial na previsão de acidentes. A intenção é notificar as autoridades brasileiras e de outros países em desenvolvimento sobre a importância de dados adequados. Nesta tese, foram definidos dois objetivos específicos: (I) investigar a acurácia do modelo espacial em subzonas sem amostragem; (II) avaliar o desempenho de técnicas de análise espacial de dados na previsão de acidentes. Primeiramente, foi realizado um estudo comparativo, baseado em modelos desenvolvidos para Flandres (Bélgica) e São Paulo (Brasil), através do método de Regressão Geograficamente Ponderada (RGP). Os modelos foram desenvolvidos para dois modos de transporte: ativos (pedestres e ciclistas) e motorizados (ocupantes de veículos motorizados). Subsequentemente, foi aplicado o método de holdout repetido nos modelos Flamengos, introduzindo duas abordagens de validação para GWR, denominados RGP holdout1 e RGP holdout2. Enquanto o primeiro é baseado nas estimativas de coeficientes locais derivados das subzonas vizinhas e medidas das variáveis explicativas para as subzonas de validação, o último usa as estimativas de acidentes das subzonas vizinhas, diretamente, para estimar os resultados para as subzonas ausentes. Por fim, foi comparado o desempenho de modelos RGP e outras abordagens, tais como Imputação pela Média de dados faltantes (IM), K-vizinhos mais próximos (KNN) e Krigagem com Deriva Externa (KDE). Os resultados mostraram que, adicionando os dados suplementares, reduções de 20% e 25% para o transporte motorizado, e 25% e 35% para o transporte ativo, foram resultantes em termos de Critério de Informação de Akaike corrigido (AICc) e Erro Quadrático Médio da Predição (EQMP), respectivamente. Do ponto de vista prático, os resultados poderiam ajudar a identificar hotspots e priorizar estratégias de coleta de dados, além de identificar, implementar e aplicar contramedidas adequadas. No que diz respeito às abordagens espaciais, RGP holdout2 teve melhor desempenho em relação a todas as outras técnicas e, provou que a RGP é uma técnica espacial apropriada para ambas as análises de previsão e impactos. Especialmente em países onde a disponibilidade de dados tem sido um problema, essa estrutura de validação permite que as acidentes sejam estimados enquanto, capturando efetivamente a variação espacial dos dados.
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Chan, Pik-shan Esther. "Assessing the suitability of English language teaching materials at primary level : a comparative evaluation of textbooks for the Hong Kong (1981) primary English syllabus /." Click to view the E-thesis via HKUTO, 1985. http://sunzi.lib.hku.hk/hkuto/record/B42128213.
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Eriksson, Linda. ""Vi lägger för denna befattning stor vikt vid personlig lämplighet" : Kandidatuppsats om användandet av begreppet personlig lämplighet vid rekrytering i offentlig sektor." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-62763.
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The recruitment processes include evaluation of candidates’ qualifications where the employers got the opportunity to base their recruitment decisions on personal suitability. Although the personal suitability often is used in recruitment decisions there is a lack of legal definition of what is comprised within the term personal suitability. However, there are legal regulations such as the prohibition of discrimination and demands of objective reasons in the public sector that restricts employers’ disposal of the personal suitability. This study aims to define the extent to which the concept can be used without being in conflict with the legal regulations entries that restrict the free admission for employers in the public sector. This is followed by the goal of increasing awareness by trying to identify the risks that is associated with the term and how they can be understood from a perspective of diversity in the labour market. The method used for this study is legal dogmatic with its' purpose to examine how the restrictions stands in relation to the use of the personal suitability in court cases. The result demonstrates that employers must be able to set the personal suitability in relation to the qualifications required for the requested position to prove that there is no violation with neither the prohibition of discrimination or the public requirement of objective grounds. The court cases also showed that despite the guidelines evolved through practice is still not completely uniform because each unique situation affects the legal assessment. The risks identified is that the use of personal suitability could possibly mean that discrimination becomes invisible because of possible underlying factors that will determine conclusions the employers makes to found their recruitment decision. With that realization also the problems highlighted for further studies are to in a more comprehensive study examining norms closely based on either the gender or intersectional perspective to gain a deeper understanding of how the use of the personal suitability may lead to consequences for the working populations’ opportunities in the labour market.
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Pieterse, D. J. L. (Dirk Johannes Louis). "An evaluation of the suitability of guideline AC201 of the South African Institute of Chartered Accountants and of a new proposed method of inflation adjustment." Thesis, Stellenbosch : Stellenbosch University, 1987. http://hdl.handle.net/10019.1/65472.
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Technical report (MBA) -- University of Stellenbosch, 1987.University of Stellenbosch Business School
ENGLISH ABSTRACT: Two methods of inflation adjustments are explained and evaluated to determine which method gives better results for a company with a given capital structure. The objective was to lay down a method to predict, without detai l and difficult ca l culus , the preferred method to use for a company with a known financial structure . The resul ts of the two methods and for differen t companies notated on the Johannesburg Stock Exchange , are shown in the Appendices.
AFRIKAASE OPSOMMING: Twee metodes vir inflasie regstelling is verduidelik en geevalueer ten einde vas te stel watter metode beter resultate lewer vir 'n maatskappy met 'n gegewe kapitaalstruktuur. Die doelwit was om 'n metode daar te stel om te voorspel. sander detail berekeninge. watter metode verkieslik is vir 'n maatskappy met 'n bekende finansiele struktuur. Die resultate van die twee metodes en vir verskillende maatskappye genoteer op die Johannesburgse Effekte Beurs is getoon in bylaagvorm.
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Viviers, Johanna Christina. "Development of an impact assessment methodology and decision making tool to assist in the evaluation of site suitability for on-site sanitation systems / Johanna Christina Vivier." Thesis, North-West University, 2006. http://hdl.handle.net/10394/1895.
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Huynh, Van Chuong [Verfasser]. "Multi-criteria Land Suitability Evaluation for Selected Fruit Crops in Hilly Region of Central Vietnam : With case studies in Thua Thien Hue province / Van Chuong Huynh." Aachen : Shaker, 2008. http://d-nb.info/1164341669/34.
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Merz, Clifford Ronald. "Investigation and evaluation of a bi-polar membrane based seawater concentration cell and its suitability as a low power energy source for energy harvesting/MEMS devices." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002671.
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Huynh, Van-Chuong [Verfasser]. "Multi-criteria Land Suitability Evaluation for Selected Fruit Crops in Hilly Region of Central Vietnam : With case studies in Thua Thien Hue province / Van Chuong Huynh." Aachen : Shaker, 2008. http://nbn-resolving.de/urn:nbn:de:101:1-2018081206233576275616.
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Sjöstrand, Björn. "Evaluation of Compression Testing and Compression Failure Modes of Paperboard : Video analysis of paperboard during short-span compression and the suitability of short- and long-span compression testing of paperboard." Thesis, Karlstads universitet, Institutionen för ingenjörs- och kemivetenskaper (from 2013), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-27519.
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The objectives of the thesis were to find the mechanisms that govern compression failures in paperboard and to find the link between manufacturing process and paperboard properties. The thesis also investigates two different test methods and evaluates how suitable they are for paperboard grades. The materials are several commercial board grades and a set of hand-formed dynamic sheets that are made to mimic the construction of commercial paperboard. The method consists of mounting a stereomicroscope on a short-span compression tester and recording the compression failure on video, long-span compression testing and standard properties testing. The observed failure modes of paperboard under compression were classified into four categories depending on the appearance of the failures. Initiation of failure takes place where the structure is weakest and fiber buckling happens after the initiation, which consists of breaking of fiber-fiber bonds or fiber wall delamination. The compression strength is correlated to density and operations and raw materials that increase the density also increases the compression strength. Short-span compression and Long-span compression are not suitable for testing all kinds of papers; the clamps in short-span give bulky specimens an initial geometrical shape that can affect the given value of compression strength. Long-span compression is only suitable for a limited range of papers, one problem with too thin papers are low wavelength buckling.
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Murekatete, Rachel Mundeli. "An Analysis of Consequences of Land Evaluation and Path Optimization." Licentiate thesis, KTH, Geoinformatik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-235687.
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Planners who are involved in locational decision making often use raster-based geographic information systems (GIS) to quantify the value of land in terms of suitability or cost for a certain use. From a computational point of view, this process can be seen as a transformation of one or more sets of values associated with a grid of cells into another set of such values through a function reflecting one or more criteria. While it is generally anticipated that different transformations lead to different ‘best’ locations, little has been known on how such differences arise (or do not arise). Examples of such spatial decision problems can be easily found in the literature and many of them concern the selection of a set of cells (to which the land use under consideration is allocated) from a raster surface of suitability or cost depending on context. To facilitate GIS’s algorithmic approach, it is often assumed that the quality of the set of cells can be evaluated as a whole by the sum of their cell values. The validity of this assumption must be questioned, however, if those values are measured on a scale that does not permit arithmetic operations. Ordinal scale of measurement in Stevens’s typology is one such example. A question naturally arises: is there a more mathematically sound and consistent approach to evaluating the quality of a path when the quality of each cell of the given grid is measured on an ordinal scale? The thesis attempts to answer the questions highlighted above in the context of path planning through a series of computational experiments using a number of random landscape grids with a variety of spatial and non-spatial structures. In the first set of experiments, we generated least-cost paths on a number of cost grids transformed from the landscape grids using a variety of transformation parameters and analyzed the locations and (weighted) lengths of those paths. Results show that the same pair of terminal cells may well be connected by different least-cost paths on different cost grids though derived from the same landscape grid and that the variation among those paths is affected by how given values are distributed in the landscape grid as well as by how derived values are distributed in the cost grids. Most significantly, the variation tends to be smaller when the landscape grid contains more distinct patches of cells potentially attracting or distracting cost-saving passage or when the cost grid contains a smaller number of low-cost cells. The second set of experiments aims to compare two optimization models, minisum and minimax (or maximin) path models, which aggregate the values of the cells associated with a path using the sum function and the maximum (or minimum) function, respectively. Results suggest that the minisum path model is effective if the path search can be translated into the conventional least-cost path problem, which aims to find a path with the minimum cost-weighted length between two terminuses on a ratio-scaled raster cost surface, but the minimax (or maximin) path model is mathematically sounder if the cost values are measured on an ordinal scale and practically useful if the problem is concerned not with the minimization of cost but with the maximization of some desirable condition such as suitability.Planerare som arbetar bland annat med att fatta beslut som hänsyftar till vissa lokaler använder ofta rasterbaserade geografiska informationssystem (GIS) för att sätta ett värde på marken med avseende på lämplighet eller kostnad för en viss användning. Ur en beräkningssynpunkt kan denna process ses som en transformation av en eller flera uppsättningar värden associerade med ett rutnät av celler till en annan uppsättning sådana värden genom en funktion som återspeglar ett eller flera kriterier. Medan det generellt förväntas att olika omvandlingar leder till olika "bästa" platser, har lite varit känt om hur sådana skillnader uppstår (eller inte uppstår). Exempel på sådana rumsliga beslutsproblem kan lätt hittas i litteraturen och många av dem handlar om valet av en uppsättning celler (som markanvändningen övervägs tilldelas) från en rasteryta av lämplighet eller kostnad beroende på kontext. För att underlätta GISs algoritmiska tillvägagångssätt antas det ofta att kvaliteten på uppsättningen av celler kan utvärderas som helhet genom summan av deras cellvärden. Giltigheten av detta antagande måste emellertid ifrågasättas om dessa värden mäts på en skala som inte tillåter aritmetiska transformationer. Användning av ordinal skala enligt Stevens typologi är ett exempel av detta. En fråga uppstår naturligt: Finns det ett mer matematiskt sunt och konsekvent tillvägagångssätt för att utvärdera kvaliteten på en rutt när kvaliteten på varje cell i det givna rutnätet mäts med ordinalskala? Avhandlingen försöker svara på ovanstående frågor i samband med ruttplanering genom en serie beräkningsexperiment med hjälp av ett antal slumpmässigt genererade landskapsnät med en rad olika rumsliga och icke-rumsliga strukturer. I den första uppsättningen experiment genererade vi minsta-kostnad rutter på ett antal kostnadsnät som transformerats från landskapsnätverket med hjälp av en mängd olika transformationsparametrar, och analyserade lägen och de (viktade) längderna för dessa rutter. Resultaten visar att samma par ändpunkter mycket väl kan vara sammanbundna med olika minsta-kostnad banor på olika kostnadsraster härledda från samma landskapsraster, och att variationen mellan dessa banor påverkas av hur givna värden fördelas i landskapsrastret såväl som av hur härledda värden fördelas i kostnadsrastret. Mest signifikant är att variationen tenderar att vara mindre när landskapsrastret innehåller mer distinkta grupper av celler som potentiellt lockar eller distraherar kostnadsbesparande passage, eller när kostnadsrastret innehåller ett mindre antal låg-kostnad celler. Den andra uppsättningen experiment syftar till att jämföra två optimeringsmodeller, minisum och minimax (eller maximin) sökmodeller, vilka sammanställer värdena för cellerna som är associerade med en sökväg med summanfunktionen respektive maximum (eller minimum) funktionen. Resultaten tyder på att minisumbanemodellen är effektiv om sökningen av sökvägen kan översättas till det konventionella minsta kostnadsproblemet, vilket syftar till att hitta en väg med den minsta kostnadsvägda längden mellan två terminaler på en ratio-skalad rasterkostyta, men minimax (eller maximin) banmodellen är matematiskt sundare om kostnadsvärdena mäts i ordinär skala och praktiskt användbar om problemet inte bara avser minimering av kostnad men samtidigt maximering av någon önskvärd egenskap såsom lämplighet.
QC 20181002
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Richter, Nahid [Verfasser], and Klaus [Akademischer Betreuer] Becker. "Evaluation of suitability of non-toxic and detoxified Jatropha curcas L. meal as feed for fingerling common carp, Cyprinus carpio L., with reference to phytase application / Nahid Richter. Betreuer: Klaus Becker." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2013. http://d-nb.info/1031469559/34.
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Nguyen, Huu Kiet [Verfasser], Nguyen Xuan [Akademischer Betreuer] Thinh, and Ralf [Gutachter] Bill. "Combination between land suitability evaluation and multi-objective optimization mathematics model to sustainable agricultural land use planning in the coastal zone of the Mekong Delta, Viet Nam / Huu Kiet Nguyen ; Gutachter: Ralf Bill ; Betreuer: Nguyen Xuan Thinh." Dortmund : Universitätsbibliothek Dortmund, 2019. http://d-nb.info/1188568019/34.
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Wang, Wenjia. "Evaluating land suitability to increase food production in Kenya." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/99627.
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Thesis: M. Eng. in Environmental Engineering Science, Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2015.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 67-70).
With increasing food deficits and growing population, Kenya is facing strong challenges to meet the food demand of the country, as the majority of the domestic consumption of some staple food sources, such as wheat and rice, is heavily relied on food relieve. This report aims to investigate the potential in increasing food production in by evaluating the availabilities of land and water resources. A land suitability analysis is carried out in this report to identify the arability of land of Kenya for the selected crops including maize, wheat and rice. The results of the report show that there is a huge potential for intensifying the food productions of the selected crops. And a discussion of the inefficiencies in the current crop production in Kenya is also included at the end of the report.
by Wenjia Wang.
M. Eng. in Environmental Engineering Science
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Allen, William Chester G. "Evaluating Application Timing Strategies, Suitability, and Efficacy of Apple Blossom Thinning Chemicals for Commercial Use." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/96444.
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With post-bloom chemical fruit thinning responses being heavily influenced by tree carbohydrate reserves and weather conditions, there is a need for alternative thinning practices such as chemical blossom thinning in the Mid-Atlantic apple growing region. This project sought to 1) evaluate timing strategies for lime sulfur + stylet-oil blossom thinning sprays and 2) screen chemical agents for their suitability and efficacy as blossom thinners. In the first study, two 'Gala'/'M.9' blocks in different states (North Carolina and Virginia) were utilized in 2019 to compare between pollen tube growth model-guided blossom thinning sprays and those that are based on fixed time intervals between the initial application and subsequent thinning sprays. It was generally found that model-guided blossom thinning sprays and sprays applied at 20% open bloom and 48 hours after reduced fruit set, crop load, and improved fruit weight. In the second study, a 'Honeycrisp'/'B.9' and 'Cripps Pink'/'M.9' apple block in Virginia were used in 2018 and 2019 to evaluate multiple chemical agents with and without stylet-oil. Most of the treatments under-thinned compared to untreated control trees. However, it was determined that ammonium thiosulfate with and without stylet-oil was the most effective thinning agent. Potassium bicarbonate + stylet-oil was observed to cause excessive fruit russeting and phytotoxicity. This project demonstrated that optimum apple crop loads can be obtained if lime sulfur + stylet-oil blossom thinning sprays are applied at the proper time, and that multiple chemical agents offer potential use for chemical blossom thinning in the Mid-Atlantic regionMaster of Science in Life Sciences
For apple trees to produce high quality fruit, a proportion of the flowers and/or fruit must be removed in a practice known as "thinning". Chemical blossom thinning is a relatively new method of thinning in the Mid-Atlantic apple growing region. This project sought to 1) evaluate spray timing of blossom thinning sprays and 2) evaluate different chemicals for their suitability in blossom thinning. In the first study, two 'Gala' apple orchards in two states (North Carolina and Virginia) were utilized in 2019 to compare a computer model-guided spray timing to structured spray timings based on the amount of time between the first and second sprays. It was found that the model-guided sprays, and sprays occurring once 20% of the blossoms had opened and reapplied 48 hours after, were the most effective in thinning the flowers. In the second part of the study, a 'Honeycrisp' orchard and a 'Cripps Pink' orchard in Virginia were used in 2018 and 2019 to evaluate different chemicals for their potential as blossom thinners. Unfortunately, most of the treatments did not achieve sufficient thinning results compared to untreated trees. However, it was determined that ammonium thiosulfate with and without stylet-oil was the most effective thinning chemical. Potassium bicarbonate with stylet-oil was found to cause excessive injury to the fruit and foliage. This project demonstrated that blossom thinning can be effective when the sprays are applied at the correct time and that multiple chemical agents offer potential for blossom thinning in the Mid-Atlantic.
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Hussein, Abdul Aziz. "Identifying Crime Hotspot: Evaluating the suitability of Supervised and Unsupervised Machine learning." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1624914607243042.
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Weinz, Axel. "Evaluating the Usability and Suitability of a Live Hockey Visualization in Mobile Augmented Reality." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254993.
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During the last couple of years, mobile augmented reality (MAR) has seen an increase in its potential due to improved available hardware and software. Applications such as Pokémon GO and IKEA Place are just a few of the successful ways MAR can be used in. Smartphone user’s tendency to look up information and data, such as live sport feeds, present unexplored opportunities for augmented reality (AR). This thesis aims to explore the usability and suitability using AR for live information visualization. For this purpose, an Android MAR application has been written in Java with Android Studio, using ARCore to visualize live events and statistics from a hockey game. The user can place a virtual hockey rink in a real-world environment and then toggle between a live event feed where current match events are being displayed, and a statistics view, where the user can see the statistics of the match, all in AR. The application was tested by nine participants between the age 1957 years old, which also answered a system usability scale test (SUS). The SUS yielded a score with the mean 76.6 out of 100, which is above the mean of studies using SUS. The user testing yielded mostly positive feedback regarding the concept of using AR to visualize information, and seven out of the nine participants thought it was a fun way of visualizing a hockey game. The result of the user testing also revealed possible problems of using AR to visualize data, such as information occlusion. In conclusion, MAR is a diverse technology which use has much undiscovered potential. The study indicates that it is a suitable and usable method for visualizing information and live data.Under de senaste åren så har AR (augmented reality) för mobil sett en ökning i dess potential till följd av förbättrad hårdvara och mjukvara. Applikationer som Pokémon GO och IKEA Place är bara ett fåtal exempel på framgångsrika sätt som mobil AR kan användas på. Smartphoneanvändares tendens att kolla upp information och data, till exempel sportsändningar, öppnar möjligheter för AR som än inte har utforskats. Denna uppsats har som mål att undersöka användbarhet och lämplighet för mobil AR som ett verktyg för att visualisera information. För detta ändamål så har en Android mobil AR applikation skapats som använder ARCore för att visualisera livedata och statistik från en ishockeymatch, skriven i Java med Android Studio. Applikationen låter användaren placera en virtuell hockeyrink i verkligheten, och sedan kan byta mellan ett liveflöde där händelser i matchen visas, samt en statistikvy, där användaren kan se statistik från hela matchen, allt i AR. Applikationen testades av nio användare mellan åldrarna 19-57, som också svarade på ett användbarhetstest (SUS). Användbarhetstestet gav ett resultat med medelvärdet 76.6 utav 100, vilket är över medelvärdet av studier som använder SUS. Användartestet gav mestadels positivt resultat angående konceptet att använda AR för att visualisera information och sju utav nio personer ansåg att det var ett roligt sätt att visualisera en hockeymatch. Resultatet av användartestet avslöjade också eventuella problem med att använda AR för att visualisera data, till exempel att information skyms. Sammanfattningsvis så är mobil AR en mångsidig teknik som har mycket outforskad potential. Denna studie indikerar att det är en lämplig metod för att visualisera liveinformation och data.
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Lin, Ting-Wei, and 林定薇. "Land Use Suitability Evaluation in Nei Shung Xi Area." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/56053472071706737124.
Full textAbstract:
碩士國立臺灣大學
森林環境暨資源學研究所
99
This study aimed at land suitability evaluation(LSU) to explore the better land use type, and analysing U/L ratio method to show the conclusion. U/L ratio method is raised from pro-fessor Shin-Shun Chen, to set the correspondent grades on land and land use, and ratio=1 mean suitable use. There is lack of research of LSU in Taiwan, so except for the area study, in this literature also collect some research in recent years about LSU. This study area is located in Neishanggsi Forestry Nature Park, the fringe of Taipei.
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Wang, Po-Hang, and 王伯航. "The Suitability Analysis on Hotel Star Evaluation in Taiwan." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/53792711905056528065.
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碩士亞洲大學
休閒與遊憩管理學系
103
【Abstract】 This study aims to analyze the suitability of the evaluation system indicators of star rated hotels as a reference approach in response to market changes in the future. In this study, we took the key indicator hierarchy structure of Taiwan hotel evaluation as the question item to draft the identification and evaluation of hotel service quality in line with international trends. This was included in the results report (Simple Version) of the Exploratory Study on the Hotel Evaluation System Constructed from the Point of View of Customers proposed by Rui-ying Hong, Guo-song Lv, and Hui-hui Lee in 2010. Before the formal questionnaires were distributed, we asked design suggestions regarding the evaluation structure from industrial, government, and academic experts as well as consumers from different standpoints, and based on which, the Likert Seven-point Scale was designed and distributed. As indicated in the results report (Simple Version) of the Exploratory Study on the Hotel Evaluation System Constructed from the Point of View of Customers proposed by Rui-ying Hong, Guo-song Lv, and Hui-hui Lee in 2010, the identification and evaluation item structure was divided into four main dimensions, namely, Service Assurance, Service Response, Service Tangibility and Service Care, with a total of 25 sub-items, in order to create a standard and excellent hotel star rating that meets the demands of all industries. In this study, we had three formal questionnaires. The following were the questionnaires for academic researchers & evaluation counselors and consumers & hoteliers respectively. There were a total of 180 copies distributed to hoteliers with 135 valid samples collected and 350 copies distributed to customers with 273 valid samples collected and 50 copies distributed to academic with 32 valid samples collected We invited experts from all industries to check the identification and evaluation items, with SPSS/Windows20.0 version as the statistical analysis tool. Regarding the four dimensions, as shown in the analysis results, Service Assurance and Service Response are the focus dimensions for all industries, which also showed the biggest difference from other accommodation-related industries. It could be summarized from the results that the industries thought that the hoteliers emphasized on quality and safety as the segmentation approach in the accommodation market, and took providing tangible, comfortable, and healthy development as the business objective. According to the results above, focusing on the dimensions that hoteliers should emphasize on, we have worked out a set of hotel quality identification and evaluation systems and standards suitable for Taiwan and in line with international standards in this study, in order to maintain the assurance of quality for tourists, with the hope of jointly creating brands of Taiwan hotels and bring the Taiwanese hotel and tourism industry to the international stage.
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Yu-TingHuang and 黃于庭. "Suitability Study of Soil Liquefaction Evaluation Methods in Tainan Area." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/nxrdqk.
Full textAbstract:
碩士國立成功大學
土木工程學系
106
The purpose of this article is to present the difference of each result on evaluating liquefaction potential while using seven SPT-N value-based methods. There are HBF (2012), NCEER (1997), AIJ (2001), NJRA (2012), JRA (1990), T-Y (1983), and China (2010). The total of 312 soil profiles have been used to assess the liquefaction potential index with each method, and to calculate error using HBF-based with other methods. Moreover, the accuracy of each methods with liquefied sites and non-liquefied sites were also been evaluated in this study. Based on the accuracy of Tainan area, liquefaction damage assessment established by Iwasaki (1984) has been revised in the article. From the results of PL show that the PL values of HBF, NCEER, NJRA, and T-Y methods are similar, and the percentage of medium-high potential borehole with NJRA is the highest, 83.6%. For error analysis, the results of average error with T-Y and NCEER methods are closed to HBF method. Also, the average error of both are less than 20%. In the accuracy evaluation part, the highest accuracy 25% is NJRA method in liquefaction case. For the revising part, there is a corrective value in each method with different condition discussed in this article.