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1

Yagow, Eugene R. "Auxiliary Procedures for the AGNPS Model in Urban Fringe Watersheds." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/30323.

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The Agricultural Nonpoint Source model (AGNPS) is a single-event grid-based model used for simulating runoff, sediment and nutrients from agricultural areas. This study involved using geographic information system (GIS) spatial data and functionality to improve the spatial and temporal assignment of parameter values for the AGNPS 5.0 model and incorporated methods for representing urban fringe land uses and their nonpoint source (NPS) pollution contributions in model inputs. Auxiliary procedures for modeling with AGNPS were developed both for enhancing input into the model and for enhancing modeled output. On an event basis, one procedure automated the creation of complex-formatted AGNPS 5.0 model input files using GIS as a spatial data manager. One pair of alternative procedures were developed to automate the assignment of parameter values on an event basis. One procedure used typical average annual parameter values, and the second assigned parameter values using adaptations of existing time-dependent relationships. On a monthly basis, a sequencing procedure was created to perform multiple runs with the model for a list of storms while updating parameters for each event and aggregating monthly modeled spatial output. Another pair of alternative procedures were developed to facilitate the simulation of monthly output from AGNPS modeled events. The first of these aggregated event output for all storms in each month, while the second supplemented the aggregated output with baseflow and septic system loads. The study area was the 6,500 ha urbanizing Bull Run watershed in northern Virginia, which was modeled as 14,621 cells. Databases were assembled and 109 selected storm events within a 16-year period were modeled using the above procedures. Event data were added together, where necessary, to correspond with observed data from composite-sampled intervals. Output from the two event parameterization procedures were compared with monitored loads calculated for 89 composite periods, while output from the two monthly simulation procedures were compared with monthly monitored data for 23 complete months. The monitored-modeled comparisons were considered inconclusive. Evidence strongly suggested that the rainfall records from a rain gauge outside the watershed did not correspond well with monitored runoff. The average runoff produced with the AGNPS model from the 109 selected storms amounted to 40.7% of rainfall, consistent with the calculated long-term average of 38% for the Bull Run watershed. A nonpoint source pollution index was developed to utilize monthly modeled total nitrogen, total phosphorus, and suspended sediment. Individual rating curves were developed to separately transform loads and concentrations of each pollutant into sub-index values. The maximum sub-index from each parameter was added together and averaged for the index. The index was calculated at the watershed outlet from monitored data, and in a spatially-distributed fashion along all streams from simulated output.<br>Ph. D.
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2

Madireddy, Madhava Rao. "Analytical design of a parallel hybrid electric powertrain for sports utility vehicles and heavy trucks." Ohio : Ohio University, 2003. http://www.ohiolink.edu/etd/view.cgi?ohiou1175278829.

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3

Santos, Edgar Pereira dos. "CAD/CAM/Usinagem CNC integrado a engenharia reversa /." Ilha Solteira, 2017. http://hdl.handle.net/11449/152068.

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Orientador: Ruis Camargo Tokimatsu<br>Resumo: A sociedade sempre busca inovações como facilitadores de processos para o alcance de objetivos propostos em distintas áreas, utilizando instrumentos, métodos e técnicas diversas. Dentre estas encontra-se a Engenharia Reversa (ER), que é o processo de engenharia afim de se obter um produto ou objeto a partir de um modelo original. Nos últimos anos, com a rápida evolução tecnológica , envolvendo máquinas, ferramentas e softwares, a ER passou a ser um recurso utilizado até mesmo por pequenas e médias empresas. O proposito desta pesquisa é avaliar o desempenho da aplicação de recursos de engenharia, tais como hardwares e softwares de baixo custo ou de uso livre, sobre a ER a fim de obter-se uma peça usinada em uma maquina CNC o mais fiel possível ao modelo físico original. Para isso foram aplicados os conceitos, os processos e recursos necessários nas etapas de reconstrução de um modelo físico , desde a digitalização 3D, utilizando scanners tridimensionais, o tratamento do objeto capturado, a reconstrução do modelo no software CAD até a geração do código G, por meio de softwares CAM, a ser enviado a uma máquina CNC para realização da usinagem e obtenção da peça modelo. Foi utilizado o scanner 3d manual Ciclop, cuja digitalização resultou em dimensões muitas próximas ao objeto original. Também foram utilizados os softwares Meshlab para tratamento do modelo digitalizado e o AutoCad Fusion 3D para criação do modelo CAD e geração dos processos de usinagem e código G, escolhidos devid... (Resumo completo, clicar acesso eletrônico abaixo)<br>Mestre
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Brigatti, Junior Luiz Antonio. "A utilização de tecnologias digitais Open Source: uma contribuição ao estudo comparativo de ambientes virtuais na PUC-SP." Pontifícia Universidade Católica de São Paulo, 2010. https://tede2.pucsp.br/handle/handle/18257.

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Made available in DSpace on 2016-04-29T14:23:53Z (GMT). No. of bitstreams: 1 Luiz Antonio Brigatti Junior.pdf: 7632702 bytes, checksum: bd6dce7cbff42707a6a96428a8b3966b (MD5) Previous issue date: 2010-03-19<br>Methods that allow the observation of users of virtual learning environments acting in the work place tend to become increasingly more necessary when the number of computer users and the inherent complexity of systems grow. Processes of continuous assessment carried out during the life cycle of Virtual Learning Environments (VLEs) seem to be required condition for users to reach good results. This research used information provided by professors to verify their usage process, and compare the use of the open source tools and the difficulties found in the virtual environments Moodle and TelEduc , both in use at PUC-SP. Thus, this dissertation argues that approaches in which VLEs are used by the faculty members of the School of Economics, Administration, Accounting and Actuary (FEA at PUC-SP) represent tools of effective gain in quality<br>À medida que cresce o número de usuários de computadores e a inerente complexidade dos sistemas, métodos para observar usuários de ambientes de aprendizagem virtuais em seu local de trabalho tendem a ser cada vez mais necessários. Processos de avaliação contínua, a serem executados durante o ciclo de vida dos ambientes virtuais de aprendizagem (AVAs), se apresentam como condição necessária a um bom resultado para seus usuários. Esta pesquisa buscou averiguar com usuários docentes o processo da utilização, além de comparar o uso das ferramentas open source e as dificuldades encontradas nos ambientes virtuais Moodle e Teleduc na PUC-SP. Assim, nessa dissertação argumenta-se que abordagens com a utilização de AVAs pelo corpo docente da Faculdade de Economia, Administração, Contabilidade e Atuária (FEA-PUC-SP), representam uma ferramenta de efetivo ganho de qualidade
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5

Bordignon, Andrei. "Controladores auxiliares de frequência para o restabelecimento de microrredes ilhadas com alto nível de inserção de geração eólica." Universidade Tecnológica Federal do Paraná, 2017. http://repositorio.utfpr.edu.br/jspui/handle/1/2339.

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CAPES<br>A difusão da geração distribuída e das microrredes, bem como a crescente expansão do uso de energias renováveis, como a eólica, trazem desafios e oportunidades relacionados à operação e controle de sistemas elétricos. Em sistemas sujeitos à operação ilhada, a capacidade de restabelecimento é fundamental para que o suprimento de energia seja retomado após a ocorrência de um desligamento. Esta tarefa pode ser de difícil execução, uma vez que desbalanços de potência significativos podem ocorrer, decorrentes da energização da rede e de variações na disponibilidade de energia primária. Neste contexto, o presente trabalho propõe a adoção de estratégias operacionais e de controle que possibilitem a execução do processo de restabelecimento em microrredes híbridas eólico-diesel com alto nível de inserção de geração eólica, sem a adoção de sistemas de armazenamento de energia. A proposta é baseada em duas malhas de controle suplementares para uma unidade eólica de conversor pleno, que habilita a unidade eólica para contribuir com a regulação de frequência durante o restabelecimento da microrrede. Os dois controladores propostos são excitados pelo erro de frequência do sistema e atuam somente quando as cargas do sistema são energizadas. Um dos controladores suplementares tem o objetivo de extrair energia cinética da turbina eólica, através da atuação na referência de velocidade da turbina nas malhas de controle do conversor do lado do gerador. O segundo controlador suplementar é projetado para extrair temporariamente energia elétrica armazenada no barramento CC da unidade eólica, por meio de um deslocamento temporário da referência de tensão do barramento CC nas malhas de controle do conversor do lado da rede. A energia extraída da turbina eólica e do barramento CC é transmitida ao sistema para mitigar o desbalanço de potência causado por um incremento de carga. Assim, as estratégias de controle propostas previnem afundamentos excessivos de frequência durante o restabelecimento de sistemas com baixa inércia. Para o projeto dos controladores propostos, uma técnica de otimização baseada em algoritmos genéticos foi utilizada. O desempenho do sistema é comparado em dois diferentes modos de operação, gerador diesel operando em modo Vf e unidade eólica operando em modo Vf. Resultados obtidos por meio de simulações não lineares no domínio do tempo demostram a efetividade das estratégias propostas.<br>The diffusion of distributed generation and microgrids, as well as the growing expansion of renewable energy, like wind power, bring challenges and opportunities related to the operation and control of electrical power systems. In systems exposed to islanded operation, the black start capability is fundamental to restore the energy supply after the occurrence of a blackout. The black start is usually a difficult operational event, since significant power unbalances may occur in the system. The present work proposes operational and control strategies that make possible the black start of wind-diesel microgrids with high penetration level of wind generation, without the adoption of energy storage systems. The proposed control approach is based on two supplementary control loops for a fully rated converter wind turbine, which enable the wind unit to contribute to the frequency regulation during the black start of a stand-alone system. Both the proposed controllers employ the system frequency error as input signal and act only when the system loads are energized. One of the supplementary controllers seeks to extract kinetic energy from the wind turbine, by modifying the speed reference of the wind turbine in the typical control loop of the rotor-side converter. The second supplementary controller is designed to temporarily extract electrical energy from the DC-link capacitor, by acting in the reference of the DC-link voltage in the typical control loop of the grid-side converter. The energy extracted from the wind turbine and DC-link capacitor is injected into the grid to mitigate the power unbalance caused by the load energization. Thus, the proposed control strategies prevent excessive frequency drops during the load energization of low inertia stand-alone systems in restoration procedures. The design of the proposed controllers was performed by a genetic algorithm optimization technique. The performance of the system is compared in two different operation modes, diesel generator operating in Vf control mode and wind generation unit operating in Vf control mode. Results obtained by nonlinear time domain simulations demonstrate the effectiveness of the proposed control approach.
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6

Georgiou, Andriani. "The cult of Flavia Iulia Helena in Byzantium : an analysis of authority and perception through the study of textual and visual sources from the fourth to the fifteenth century." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4175/.

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The symbolic role of Helena throughout the Byzantine period has never been considered in any detail. Many of the literary sources, particularly historiographical and hagiological texts, are not easily accessible and have not been translated. The visual sources referring to Helena, such as works of late Roman and Byzantine art, coinage, illustrated manuscripts, reliquaries, and wall paintings, have never been collected. My thesis collects and re-evaluates the textual and visual evidence from the fourth to the fifteenth century in order to explore the origins and development of Helena's cult; the emergence of a Helena-legend with symbolic and metaphorical functions; and the ways that the Byzantines reconstructed, judged, and appreciated her role. Special attention is given to the relationship between word and image, as well as the influence exerted on them by contemporary political and social developments. This thesis demonstrates that memories of Helena as an empress and as a saint were manufactured in several distinct stages over several centuries; and that her role differed in the eastern and western halves of the former Roman empire. The evidence is analysed thematically and in chronological order.
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7

Abreu, Sergio Brasil. "Comportamento de filtros rápidos de camada profunda no tratamento de águas de abastecimento mediante o emprego de polímeros como auxiliares de filtração." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/3/3147/tde-09092009-141154/.

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O projeto consistiu em avaliar o emprego de polímeros catiônicos e aniônicos de diferentes pesos moleculares como auxiliares de filtração no tratamento de águas de abastecimento proveniente de mananciais com alto grau de eutrofização com vistas a possibilitar a otimização da remoção de material particulado e minimização da evolução da perda de carga. O aparato experimental é composto, principalmente, por 4 filtros em escala piloto de alta taxa do tipo camada profunda e fluxo descendente por gravidade operados em paralelo. Os filtros possuem 5 m de altura e diâmetro interno de 150 mm. O procedimento experimental foi dividido em três etapas, execução de ensaios de fluidificação e expansão do leito dos filtros e utilização de polímeros catiônicos e de polímero aniônico como auxiliares de filtração. A primeira etapa teve como objetivo definir parâmetros de dimensionamento do sistema de lavagem em contra-corrente com ar e água e nas duas etapas seguintes foram realizados os ensaios de filtração a uma taxa de 500 m³/m²/dia, com a utilização dos polímeros com três dosagens diferentes. Os polímeros utilizados foram CA-2577, CA-2581, CD-2592 e N1986. Estes possuem estrutura e pesos moleculares variáveis, de forma que o trabalho tivesse uma maior amplitude. Os valores médios de turbidez, para a primeira etapa dos ensaios de filtração, foram de 2,36 ± 0,28 UNT e 1,12 ± 0,21 UNT para água bruta e decantada, respectivamente, 0,26 ± 0,07 UNT para o filtro F1 com antracito, 0,25 ± 0,08 UNT para o filtro F3 com antracito e adição de polímero, 0,29 ± 0,08 UNT para o filtro F2 com areia e 0,26 ± 0,08 UNT para o filtro F4 com areia e adição de polímero. Para a segunda etapa dos ensaios de filtração os valores médios de turbidez foram de 2,03 ± 0,36 UNT para água bruta, 0,80 ± 0,21 UNT para água decantada, 0,09 ± 0,03 UNT para o filtro F1, sem adição de polímero, e 0,15 ± 0,04, 0,16 ± 0,03 e 0,10 ± 0,04 UNT para os filtros F2, F3 e F4, respectivamente, todos com adição de polímero. Os resultados experimentais possibilitaram concluir que a adoção do antracito como material filtrante do tipo camada única e profunda apresenta a vantagem de permitir uma menor velocidade ascensional de água de lavagem para uma determinada expansão quando comparado a um filtro de areia de idêntica granulometria. A aplicação dos polímeros catiônicos e do polímero aniônico como auxiliares de filtração não proporcionou para nenhuma dosagem utilizada melhora significativa no comportamento dos filtros. Uma eventual melhora ou piora foi insignificante e estava ligada à qualidade da água decantada. No que diz respeito à perda de carga, os filtros com antracito tiveram carreiras de filtração mais longas quando comparados com os de areia, independente da utilização dos polímeros.<br>The project was to evaluate the use of anionic and cationic polymers of different molecular weights as filter aids to treat drinking water treatment of surface water sources with high degree of eutrophication, particularly with regard to particulate matter removal optimization and head loss rate minimization. The experimental apparatus was composed of four pilot scale, deep bed, down flow rapid gravity filters, operated in parallel. The filter columns were 5 m high, had inner diameter of 150 mm. The experimental procedure was divided in three stages, conduction of media fluidization and media expansion tests and cationic and anionic polymers application as filter aid. The first stage aims was to define design parameters for the filter backwashing system with water and air and in the two next phases the tests were conducted at a filtration rate of 500 m³/m²/day, with the use of polymers with three different dosages. The polymers tested were CA- 2577, CA-2581, CD-2592 and N1986. They have different structure and molecular weights, thus making wider the array of possibilities tested. The average values of turbidity, for the first stage of testing filtration, were 2.36 ± 0.28 and 1.12 ± 0.21 NTU for raw and settled water, respectively, 0.26 ± 0.07 NTU to the filter F1 with anthracite, 0.25 ± 0.08 NTU for the filter F3 with anthracite and addition of polymer, 0.29 ± 0.08 NTU for the filter F2 with sand and 0.26 ± 0.08 NTU for the filter F4 with sand and the addition of polymer. For the second stage of testing of the filter values of turbidity were 2.03 ± 0.36 NTU for raw water, 0.80 ± 0.21 NTU for settled water, 0.09 ± 0.03 for the filter F1, without the addition of polymer, and 0.15 ± 0.04, 0.16 ± 0.03 and 0.10 ± 0.04 NTU for filters F2, F3 and F4, respectively, all with the addition of polymer. The experimental results led us to conclusion that the adoption of anthracite as single media in deep bed filtration presents the advantage of a lower ascent backwash water velocity for any given bed expansion as compared to deep bed filtration through sand with the same granulometric characteristic. Application of cationic and anionic polymers as filter aids did not lead to any significant improvement in the behavior of pilot scale filters, regardless of applied polymer dosage. Any eventual improvement or worsening was not significant and was closely related to the settled water quality. Regarding the head loss, the filters with anthracite had longer filtration careers when compared to sand, regardless the use of polymers.
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Drápalíková, Jitka. "Návrh podnikového trainee programu a jeho zavedení pomocí technik projektového managementu v organizaci." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2021. http://www.nusl.cz/ntk/nusl-444615.

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DELLA-VALLE, VERONIQUE. "1) etude moleculaire et physiopathologique des virus mcf isoles de proliferations malignes induites chez la souris par le virus auxiliaire de la leucemie de friend (f-mul v) : 2) les autoanticorps : un outil essentiel de la biologie cellulaire." Paris 6, 1988. http://www.theses.fr/1988PA066675.

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La leucemogenese induite chez la souris par le virus auxiliaire de la leucemie de friend est accompagnee de la formation "in vivo" de retrovirus mcf dans les proliferations malignes de lignees erythroides et lymphoides mais pas dans celles des lignees de type myelomonocytaire. L'identification des virus mcf isoles montre que leur genome viral comporte une region "eno" recombinee avec des sequences endogenes murins. In vivo ces virus f-mcf entrainent l'apparition d'erythroblastoses et de lymphoblastoses
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Cantarell, Elena. "La vida en un poble de la Catalunya interior, segles XIV-XVI. Localització, recuperació, organització i explotació dels fons documentals de Cubells." Doctoral thesis, Universitat de Barcelona, 2013. http://hdl.handle.net/10803/123616.

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Aquesta tesi doctoral està bastida a partir d’un fons documental inèdit, dispers i malmès, que calia salvaguardar. Això ha permès estudiar el territori des del territori i amb les fonts del territori. I, a més, contribuir a la conscienciació de la conveniència de la preservació dels documents històrics amb la recuperació de l'arxiu municipal de Cubells de manera que aquestes actuacions es poguessin adaptar a altres realitats arxivístiques. Aquesta tesi té un triple vessant: per una banda, recuperar un arxiu municipal i posar-lo a l’abast dels estudiosos, en segon lloc fer una recerca històrica a partir d’aquesta documentació i, finalment, aconseguir presentar la documentació històrica com un material didàctic idoni per a la docència universitària i també, per què no, d’altres nivells educatius i així mateix fer-la assequible per a la difusió. Estructura: Capítol 1: descriu la situació en què es trobava la documentació, la cronologia, la llengua, les tipologies documentals i la tradició dels documents de l'arxiu. Capítol 2: descriu amb tot detalli les actuacions dutes a terme per localitzar, recuperar, organitzar i difondre els fons d'aquest arxiu, mostrant detalladament tota la metodologia de treball utilitzada. Inclou catàleg de pergamins. Capítol 3: descriu l'organització i producció de les institucions productores dels documents: el municipi de Cubells, l'escrivania local i els senyors de la terra. Capítol 4: analitza en profunditat els censals morts. Aquesta és la tipologia més freqüent de la documentació estudiada i també la que mostra la situació real dels homes i dones que poblaven aquestes terres als segles baix medievals. Els apèndixs inclouen: transcripció de documents significatius. Un petit apartat sobre l'important tresor artístic, actualment dispers, d'aquest petit lloc. Índex de topònims i índex d'antropònims.<br>Structure: Chapter 1: It describes in which situation the documents were found, their chronology, their languages, the documentary typologies and the tradition of the documents of this archive. Chapter 2: It describes entirely the performances carried out to locate, recover, arrange and diffusion the documentations, showing in detail all the methodology of work used. It includes the catalogue of parchments. Chapter 3: It describes the study of the institutions that produced the documents: the municipality of Cubells, the local scrivener and the landowners. + Chapter 4: It analyses in depth a documentary typology called “censals morts”, a credit document. This is the most frequent typology it can be found among the documentation studied and also the one who shows the real situation of the men and women who lived in Cubells during the Late Middle Ages. The appendices include: transcription of significant documents; a small study of the important artistic treasure of this small village, nowadays disperse; and Indexes of toponyms and antroponyms.
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Capilla, García Juan Pablo. "El debate epistemológico en el periodismo informativo. Realidad y verdad en la información." Doctoral thesis, Universitat Ramon Llull, 2015. http://hdl.handle.net/10803/287466.

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Esta tesis doctoral analiza la dimensión gnoseológica del periodismo informativo, es decir, su capacidad de generar conocimiento sobre la realidad, para lo cual aplica al periodismo la reflexión epistemológica de la filosofía y de la historiografía. El objetivo es constatar las posibilidades gnoseológicas del periodismo con el fin de delimitar una definición de la profesión periodística acorde con su capacidad para conocer. Para ello, configura el objeto de estudio a partir de las alusiones epistemológicas halladas en textos que describen la actividad periodística: libros de estilo, códigos deontológicos, manuales prácticos y estudios teóricos sobre el periodismo. Con ello se busca configurar una visión panorámica de las prácticas profesionales de los periodistas, así como revisar la reflexión desarrollada desde el propio periodismo sobre las implicaciones epistemológicas de su trabajo. A ese objeto de estudio se le ha aplicado el aparato conceptual de la epistemología para plantear en el periodismo un debate epistemológico en términos conmensurables con los de la reflexión gnoseológica de la filosofía y de la historiografía. El resultado es la definición del proceso gnoseológico del periodismo, en el que se distinguen dos fases: a) la perceptiva, asociada al uso de las fuentes informativas y que permite el contacto con la realidad; y b) la atribución de significado a los resultados de la percepción, que es la fase en la que se dirime la discusión sobre la verdad de los enunciados periodísticos. En la primera fase se analizan las situaciones en las que el periodista captura hechos de la realidad, a través de las fuentes, y se llega a la conclusión de que el punto de partida del proceso gnoseológico es el relato de la percepción de un hecho, no la realidad en sí, puesto que siempre aparece un intermediario –el testigo– entre la realidad y la percepción de la realidad. En la segunda fase se analiza el paradigma gnoseológico imperante en el periodismo –el objetivismo–, para concluir que dicho paradigma relega al periodismo a la recolección de hechos, con lo que se niega la función gnoseológica del periodista al situar la atribución de significado –la interpretación– fuera del ámbito de actuación del periodista. En contraposición, se analizan propuestas epistemológicas que asumen como ineludible la intervención del sujeto a la hora de otorgar significado a los hechos, a partir de la naturaleza narrativa inherente a la noticia. En ese sentido, situar al periodista en el centro de la actividad periodística aparece como la única posibilidad de justificar la condición gnoseológica del periodismo, y con ella su capacidad de explicar hechos, sobre todo en un momento como el actual en el que las tecnologías de información están poniendo en cuestión aspectos clave del periodismo, desde la singularidad de la profesión periodística hasta su capacidad de generar enunciados gnoseológicos de la realidad.<br>Aquesta tesi doctoral analitza la dimensió gnoseològica del periodisme informatiu, és a dir, la seva capacitat per a generar coneixement de la realitat, aplicant al periodisme la reflexió epistemològica de la filosofia i de la historiografia. L'objectiu és constatar les possibilitats gnoseològiques del periodisme amb la finalitat de delimitar una definició de la professió periodística d'acord amb la seva capacitat per a conèixer. Per això, s'ha configurat l'objecte d'estudi de la tesi a partir de les al•lusions epistemològiques trobades en textos que descriuen l'activitat periodística: llibres d'estil, codis deontològics, manuals pràctics i estudis teòrics sobre el periodisme. Amb això es busca tenir una visió panoràmica de les pràctiques professionals dels periodistes, així com revisar la reflexió desenvolupada des del mateix periodisme sobre les implicacions epistemològiques de la seva feina. Un cop configurat l'objecte d'estudi, se li ha aplicat l'aparell conceptual de l'epistemologia per tal de plantejar en el periodisme un debat epistemològic en termes commensurables amb els de la reflexió gnoseològica de la filosofia i de la historiografia. El resultat és la definició del procés gnoseològic del periodisme, en el qual es distingeixen dues fases: a) la perceptiva, associada a l'ús de les fonts informatives i que permet el contacte amb la realitat; i b) l'atribució de significat als resultats de la percepció, que és la fase en la qual es dirimeix la discusió sobre la veritat dels enunciats periodístics. A la primera fase s'analitzen les situacions en les quals el periodista captura fets de la realitat, mitjançant les fonts, i s'arriba a la conclusió que el punt de partida del procés gnoseològic és el relat de la percepció d'un fet, no el fet en sí, ja que sempre apareix un intermediari –el testimoni– entre la realitat i la percepció de la realitat. A la segona fase es revisa el paradigma gnoseològic que impera en el periodisme –l'objetivisme– per a concloure que aquest paradigma relega el periodisme a la recol•lecció de fets, amb la qual cosa es nega la funció gnoseològica del periodista en situar l'atribució de significat –la interpretació– fora de l'àmbit d'actuació del periodista. En contraposició, s'analitzen propostes epistemològiques que assumeixen com a ineludible la intervenció del subjecte a l'hora d'atorgar significat als fets, a partir de la naturalesa narrativa inherent a la notícia. En aquest sentit, situar el periodista al centre de l'activitat periodística apareix com l'única possibilitat de justificar la condició gnoseològica del periodisme, i amb ella la seva capacitat d'explicar fets, sobretot en el moment actual, quan les tecnologies de la informació estan posant en crisi aspectes claus del periodisme, des de la singularitat de la professió periodística fins a la seva capacitat de generar enunciats gnoseològics de la realitat.<br>This doctoral thesis looks into the gnoseological dimension of informative journalism, that is, its capacity to produce knowledge about reality. To do so, journalism is analysed along the lines of the epistemological reflection of philosophy and historiography. The aim is to examine the gnoselogical possibilities of journalism in order to establish a definition of the profession of journalism in accordance with its capacity to get to know the real world. In order to do that, it sets the subject of study from the epistemological references as found in texts describing the activity of journalism: books of style, deontological codes, manuals and theoretical studies about journalism. It seeks to get a general view of the professional practices of journalists, as well as reviewing the reflections made from journalism itself about the epistemological implications of the discipline. An epistemological approach has been used to analyse the subject of study so as to put forward an epistemological discussion —in similar terms as those used in the gnoseological reflection on philosophy and historiography. The upshot is the definition of the epistemological process in journalism, in which we can pinpoint two stages: a) the perceptual stage, which is associated with the use of information sources and which allows contact with reality; b) the attribution of meaning to the results of perception: the stage in which one settles the discussion about the truth of journalistic statements. In the first stage, we look into situations in which the journalist captures events from sources, and we reach the conclusion that the starting point of the epistemological process is the account of the perception of an event, not reality itself, since there emerges always an intermediary —the witness— between reality and the perception of reality. In the second stage we examine the gnoseological paradigm in journalism —objectivism—, and we infer that such a paradigm degrades journalism to the mere recollection of facts, and hence the journalist is stripped of their epistemological function because the attribution of meaning —the interpretation— is beyond the scope of the journalist’s task. In contrast, we examine epistemological approaches that deem inevitable the subject’s intervention when it comes to attributing meaning to facts, based on the inherent narrative nature of a news story. In that sense, placing the journalist at the centre of the journalistic activity seems to be the only possibility to justify the epistemological condition of journalism, and therewith its capacity to report facts, particularly nowadays when information technologies are calling into question key aspects of journalism, such as the unique nature of journalism and also its capacity to produce gnoseological statements about reality.
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Lo, Chi-sheng, and 羅濟生. "The Influence of Auxiliary Source Light on reading efficiency for Students with Low Vision." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/84335506143944879814.

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碩士<br>國立臺南大學<br>特殊教育學系碩士班<br>99<br>This study employed single-subject experimental design and semi structured-interviews approach. The main purpose was to discuss how different auxiliary sources of light affect the reading speed, accuracy, sustainability on two low vision students. In addition, the influence of light pattern to index of reading fatigue, the eye blinking rate of reading and reading distance was also analyzed. Five important conclusions were made in the study and listed as follows: 1. Participants demonstrated significant improvement of reading speed, accuracy, and proper reading distance under a better circumstance of illumination. 2. Higher illumination degenerated reading sustainability of both two students, however, higher illumination combined with lower color temperature would achieve better sustainability for student B. 3. Increase illumination made lower eye blinking rate of student A , however , increasing illumination combine with penetrate pattern would increase the eye blinking rate. 4. The optimal auxiliary source of light for student A was high illumination, standard color temperature reflect pattern, on the other hand, penetrate pattern auxiliary source of light with high illumination, was more suitable for student B. 5. Participants were satisfied with the improving read speed and accuracy under the condition of increasing illumination, especially happy with exemption of neck pain from the reading distance increased posture.
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Dai, Jhih-Wei, and 戴志偉. "A BATTERY ENERGY STORAGE SYSTEM WITH AUXILIARY CHARGING SOURCE FOR DC MICRO-GRID AND ELECTRIC VEHICLE TO PERFORM GRID-CONNECTED OPERATION." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/27603962047706400355.

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Cheng, Chao-Han, and 鄭兆涵. "A multi-functional battery energy storage system with multiple auxiliary charging sources." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/58670492382578567475.

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碩士<br>國立清華大學<br>電機工程學系<br>101<br>This thesis presents a multifunctional battery energy storage system (BESS) with multiple auxiliary charging sources and its operation control. The DC-link voltage (400V) in the developed BESS is established from the 96V battery bank via an interleaving bi-directional DC/DC converter with two cells. Only single DC-link current sensing is required for making the current-mode controls of the parallel converters. Then a bilateral three-phase inverter is developed to generate 60Hz/220V AC output voltages. Through proper controls, the developed inverter possesses flexible power conditioning control capability. The developed BESS is arranged to possess the following functions: (1) Autonomous mode: the local loads are powered by the BESS with good waveform quality. (2) Grid-connected mode: The BESS is connected to the utility grid via synchronization process for conducting the following three operation modes: (i) Floating mode: The utility grid only supplies real power to the local load, and all load reactive as well as harmonic powers are compensated by the BESS; (ii) Discharging mode (or battery-to-grid (B2G) mode): The BESS supplies power to the local load and sends the preset power back to the utility grid; and (iii) Charging mode (or grid-to-battery (G2B) mode): The utility grid supplies power to the local load and also charges the battery. The BESS can compensate all load reactive and harmonic powers in grid connected operation. The battery bank of the developed BESS can be charged by an auxiliary charger system with multiple auxiliary charging sources through a common resonant isolated DC/DC converter. The three-phase AC sources are connected to the BESS via three-phase switch-mode rectifiers, such as three-phase single-switch (3P1SW) SMR and Vienna three-phase three-switch SMR. And the possible sources may include backup AC distribution network, wind generator, micro-turbine generator and flywheel generator, etc. As to the DC auxiliary charging sources, such as photovoltaic (PV) cell and solid-state fuel cell (SoFC), they are interfaced to the BESS by the developed interleaving buck-boost DC/DC converter. Moreover, the micro-grid and electric vehicle can be incorporated into the developed BESS to conduct their inter-connected operations.
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Batista, Mário. "Abordagem metodológica para auxiliar no processo de localização de um ERP Open Source." Master's thesis, 2014. http://hdl.handle.net/10071/8696.

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A internacionalização de aplicações organizacionais é relevante para promover a comunicação entre organizações de diferentes contextos. Os sistemas Entreprise Resource Planning (ERP) não são exceção. Internacionalização e localização de software são a forma de adaptar os sistemas aos negócios e às pessoas, respeitando as especificidades de um determinado país ou região. Esta dissertação apresenta uma framework de localização de ERP Open Source (OS), identificando os componentes que devem ser localizados. A tradução e a customização constituem as principais tarefas neste processo. Esta framework foi validada através da sua aplicação a um ERP Free and Open Source Software (FOSS).<br>Organizational system internationalization is relevant for promoting communication between organizations in different contexts. Enterprise Resource Planning (ERP) systems are no exception. Internationalization and localization of software is the only way to adapt system to a business and to people, regarding a particular country or region. This dissertation presents an ERP Open Source (OS) localization framework, identifying the components, which must be located. The translation and customization are the main tasks in this process. This framework was validated by applying it in a Free and Open Source Software (FOSS).
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Carvalho, Micael Luís Morais. "An Overview of Methods for Control of Flexible Resources." Master's thesis, 2016. http://hdl.handle.net/10316/81592.

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Dissertação de Mestrado Integrado em Engenharia Electrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia<br>A recurrent subject related with the electrical grids in the last years, is the necessity to adopt sustainable energy policies. Due to massive raises in the greenhouse gas emissions, the planet Earth has suffered serious consequences. The European Union, trying to reduce this emissions, has played an important role, with the financing of enormous projects with the aim to improve the Power Quality (PQ) and at the same time, reduce the greenhouse gas emissions, for a better ambient and a better service. Two of those projects are the Increase and the Story. The principal ambition of these two projects is to study and develop new controls to permit a better penetration and at the same time, a better control of the distributed renewable energy sources (DRES) in the distribution network. In the case of the Story, the aim is to use storage technologies to this end.Distribution networks are recently becoming a target of this intensive research. The increasing penetration of the distributed renewable energy sources, such as photovoltaic panels (PV) and wind generation, as well as flexible load consumption units, have influence the network operation. Normally, the Distribution System Operator (DSO) would strive to reinforce the grid through additional investments to deal with this issues. This investment can cause technical problems in the grid, although, this new development can also provide a potential source of flexibility from the network users and thus a desirable source of solutions for the grid operations. With appropriate approaches to conjure and to use this flexibility, the DSO can increase hosting capacity with the existing grid infrastructure, deferring grid reinforcement investments.The ambition of my master thesis is, in collaboration with the Laboratory of Energy Policy from the University of Ljubljana, to study the effects of the different types of controls in a distribution network, to allow the injection of power from DRES, keeping all the network parameters inside the regulated levels, allowing this flexibility aforementioned. For that, was used the Increase simulation platform to simulate a Rural Network with the parameters and characteristics close to a real one.This is a first part in this two European projects, with this results, they will be used for further investigation. Is essential to deliver new tools and methods to the DSO to allow a higher increase of distributed renewable energy sources in the network, because, with this inclusion will be a big step to a fossil independent networks.<br>Um assunto recorrente relacionado com as redes elétricas durante os últimos anos, é a necessidade de adotar politicas energeticamente sustentáveis. Devido ao enorme crescimento nas emissões de gases de estufa, o nosso planeta tem vindo a sofrer graves consequências.A União Europeia tem tido um papel importante no combate a este crescimento das emissões, com o financiamento de vários projetos com o fim de melhorar a qualidade de energia e ao mesmo tempo, reduzir as emissões dos gases de estufa, para um melhor ambiente e um serviço melhorado.Dois destes projetos são o Increase e o Story. A principal ambição destes dois projetos, é o estudo e o desenvolvimento de novos tipos de controlo, que permitam uma melhor penetração e ao mesmo tempo, um controlo improvado das distributed renewable energy sources (DRES) nas redes de distribuição elétricas. No caso do programa Story são usadas unidades de armazenamento para este fim.As redes de distribuição elétricas têm vindo a ser alvo de uma pesquisa intensiva. A penetração das DRES, como fotovoltaicas (PV) e energia eólica, bem como as cargas com consumo flexível, influenciam a operação das redes. Normalmente, o operador destas redes opta pela via do investimento para lidar com estes problemas, no entanto, este mesmo investimento pode provocar novos problemas técnicos na rede de energia. Com estes recentes desenvolvimentos, os consumidores podem vir a ser uma fonte potencial de flexibilidade para a rede, sendo uma solução desejável para os problemas na operação da rede.Com um apropriado uso desta flexibilidade, o DSO pode aumentar a capacidade da rede usando apenas a infraestrutura já instalada, evitando assim custos da instalação de novos equipamentos.Esta dissertação tem como ambição, numa colaboração com o Laboratory of Energy Policiy da Universidade de Ljubljana, estudar os efeitos de diferentes tipos de controlos numa rede de distribuição, para assim, permitir uma máxima injeção de energia das fontes renováveis, mantendo todos os parâmetros dentro dos valores regulados. Para isso, foi usada a plataforma de simulação do Increase para simular uma rede rural com parâmetros e características baseadas numa rede real.Este é uma primeira aproximação dos dois projetos acima referidos, sendo que estes resultados irão ser usados em investigações futuras. O desenvolvimento de novas ferramentas e métodos para o DSO permitir uma maior penetração de DRES na rede, é de elevada importância, pois com esta inclusão vai permitir uma maior independência dos combustíveis fósseis.
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