Submitted by Rodrigo Bezerra da Silva (bezerra_digo@hotmail.com) on 2016-10-31T12:54:19Z No. of bitstreams: 1 Texto_do_trabalho_3110 versão final.pdf: 3199820 bytes, checksum: 8f2b8ba6ec336d4337daeee2d95a6d88 (MD5) / Rejected by Fabiana da Silva Segura (fabiana.segura@fgv.br), reason: Boa Tarde, Rodrigo O Titulo do trabalho submetido não é o mesmo do aprovado em ATA, caso tenho sido solicitado alteração a orientadora do grupo deverá encaminhar e-mail informando novo titulo e posteriormente também deverá comparecer na secretaria para anotação do titulo em alta. A ficha catalográfica deve vir na pagina seguinte da contra capa. Peço proceder com as alterações e fazer nova submissão, lembrando que só poderá submeter após e-mail da orientadora informando o novo titulo. Atenciosamente SRA on 2016-10-31T16:33:20Z (GMT) / Submitted by Rodrigo Bezerra da Silva (bezerra_digo@hotmail.com) on 2016-11-03T10:43:18Z No. of bitstreams: 1 ESTRUTURAÇÃO DE LIVING LABS E SUA GOVERNANÇA POR TEMAS DA CIDADE INTELIGENTE O CASO DA LINHA VERDE EM CURITIBA.pdf: 3309943 bytes, checksum: d6be3ce9b19ddf6ae3f8414772762515 (MD5) / Approved for entry into archive by Fabiana da Silva Segura (fabiana.segura@fgv.br) on 2016-11-03T15:08:55Z (GMT) No. of bitstreams: 1 ESTRUTURAÇÃO DE LIVING LABS E SUA GOVERNANÇA POR TEMAS DA CIDADE INTELIGENTE O CASO DA LINHA VERDE EM CURITIBA.pdf: 3309943 bytes, checksum: d6be3ce9b19ddf6ae3f8414772762515 (MD5) / Made available in DSpace on 2016-11-03T15:22:34Z (GMT). No. of bitstreams: 1 ESTRUTURAÇÃO DE LIVING LABS E SUA GOVERNANÇA POR TEMAS DA CIDADE INTELIGENTE O CASO DA LINHA VERDE EM CURITIBA.pdf: 3309943 bytes, checksum: d6be3ce9b19ddf6ae3f8414772762515 (MD5) Previous issue date: 2016-10-06 / The purpose of this work is to elaborate a proposal of Living Labs organization on the region known as 'Linha Verde' urban zone of road BR 116, that crosses Curitiba and became the sixth structuring axis of the city. As an old road, it provides low added-value services and has social demands pending of solution, as the same time as it is passing by an urban requalification process aiming the change in this scenario. It is believed that, by transforming this route in a sustainable innovation center, the attractiveness of this zone will be increased, bringing in companies and services intensive in technology and of higher complexity. To accomplish the change in 'Linha Verde' in aaccordance with the Reference Term presented by the City Hall of Curitiba to Fundação Getulio Vargas, a study on Living Labs was conducted – real life experimentation labs that target the creation of innovative products and services through public-private-personal partnerships. The research methods applied in the formulation of the present thesis proposal were national and international experience collection through literature revision, semi-structured interviews with key players of 'Linha Verde' project material analysis and field visits. The Strategic Situational Planning was used to realize scenario diagnosis and proposals to the solution of the case. The proposal developed in the work consists of mapping potential Living Labs for 'Linha Verde' detaling important aspects apprehended in bibliographical review (coordination, participation and network formation and implementation method). It was made the option of suggesting them according to the six interest areas of a smart city (smart environment, smart mobility, smart living, smart people, smart economy and smart governance) given the fact that Curitiba already adopts this concept. In addition to that, the creation of a structure of governance and innovative ideas capitation was suggested, based on researched international experiences. Possible externalities that the Living Labs may bring to the city are also presented. Lastly, the steps of the proposal implemetation are presented. The initiatives presented here can contribute to make the 'Linha Verde' a social and economic development area serving as a laboratory of innovative urban solutions. / O objetivo desse trabalho consiste na elaboração de proposta para estruturação de Living Labs na região da Linha Verde, trecho urbano da BR 116, que cruza Curitiba, e que se tornou o sexto eixo estruturante da cidade. Por ser antiga rodovia, apresenta serviços de baixo valor agregado, com demandas sociais a serem resolvidas, e passa por um processo de requalificação urbana, visando mudar esse cenário. Acredita-se que transformar essa via num centro de inovações urbanas sustentáveis aumentará a atratividade da região, trazendo empresas e serviços intensivos em tecnologia e de maior complexidade. Para realizar essa mudança na Linha Verde, atendendo ao Termo de Referência apresentado à Fundação Getulio Vargas pela Prefeitura de Curitiba, realizou-se estudo de Living Labs – laboratórios de experimentação na vida real, cujo objetivo é criar produtos e serviços inovadores por meio de parcerias público-privada-pessoais. Os métodos de pesquisa utilizados para formulação da proposta dessa dissertação foram: revisão de literatura com levantamento de experiências nacionais e internacionais, entrevistas semiestruturadas com atores do projeto da Linha Verde, análise de materiais e visitas de campo. Utilizou-se o Planejamento Estratégico Situacional para diagnóstico do cenário e proposição das soluções para o caso. A proposta elaborada no trabalho consiste no mapeamento de potenciais Living Labs para a Linha Verde, com detalhamento de aspectos importantes identificados na revisão bibliográfica (coordenação, participação, formação da rede e método de implementação). Optou-se por sugeri-los de acordo com as seis áreas de interesse de uma cidade inteligente (smart environment, smart mobility, smart living, smart people, smart economy e smart governance), visto que Curitiba já adota esse conceito. Adicionalmente, sugeriu-se a criação de estrutura de governança e de captação de ideias inovadoras, baseadas em experiências internacionais pesquisadas. Apresentam-se também possíveis externalidades que os Living Labs podem trazer à cidade. Por fim, apresentam-se as etapas de implantação da proposta. As iniciativas aqui propostas podem contribuir para tornar a Linha Verde uma área de desenvolvimento econômico e social, servindo como um laboratório de soluções urbanas inovadoras.

Ce travail est consacré à l’étude expérimentale et numérique de la propagation des feux de végétation à l’échelle du laboratoire. Une méthode de suivi de front de flamme par caméras visibles a été développée pour reconstruire et mesurer les propriétés du front au cours du temps. Les données recueillies comprennent la vitesse de propagation (Rate Of Spread), l’épaisseur du front, les longueurs du contour du front, les profils de hauteur et la puissance du feu. Une campagne expérimentale de 105 expériences de propagation sur de la frisure de bois a été réalisée sur la plateforme PROMETHEI (Plateforme de Recherche Opérationnelle en Métrologie Thermique dédiée aux Essais Incendies) du laboratoire LEMTA. Elle contient notamment une étude de l’effet de la largeur et de la charge sur la dynamique de propagation (sur la vitesse et l’épaisseur). Une base de données (en libre accès sur internet) dédiée aux feux de végétation a été créée et fournit les positions du front de flamme (avant et arrière) pour 85 expériences. Un modèle de propagation Petit Monde à réseau de cellules hexagonales a été également développé en parallèle. Plusieurs approches sont proposées pour déterminer l’évolution de l’état des cellules : la première modélise le transfert radiatif alors que la deuxième se base sur une fonction de distribution identifiée. Un algorithme d’optimisation par essaims particulaires (PSO) est employé pour estimer les différents paramètres du modèle à l’aide des résultats expérimentaux. Le modèle Petit Monde est ensuite comparé à des expériences de propagation comprenant des coupures de combustible ou des rétrécissements/élargissements de la largeur du lit / This work is devoted to the experimental and numerical study of wildland fire spread at laboratory scale. A tracking fire front method using visible cameras was used in order to follow the fire front positions during the propagation and to evaluate some fire front properties. The data include the Rate Of Spread (ROS), the fire front width, the length of fire, the profile of flames and the Heat Release Rate. An experimental campaign of 105 fire spread tests with wood shaving as fuel was conducted on the PROMETHEI plateform (Plateforme de Recherche Opérationnelle en Métrologie Thermique dédiée aux Essais Incendies) of the laboratory LEMTA. This campaign was essentially focused on the effect of the fuel bed width and the fuel loading on the fire dynamics (particularly on the ROS and fire width). An open-source data base provides the positions of the front and backing fire as a function of time. A fire spread model based on the small world concept with a hexagonal cell network was developed. Two approaches were studied: the first one is based on a radiative transfer model for the definition of the cell states and the other one is based on an estimated distribution function. A particle swarm optimization (PSO) algorithm was used for the identification of the different parameters of the model using the experimental results. Then, the model was compared to other experiments included fuel breaks or narrowing/widening of the fuel bed width

TORRES, Antônia Lis de Maria Martins. Sobre tecnologias, educação, formação e etnografia: a experiência do Laboratório de Pesquisa Multimeios da Faculdade de Educação (UFC). 2014. 207f. – Tese (Doutorado) – Universidade Federal do Ceará, Programa de Pós-graduação em Educação Brasileira, Fortaleza (CE), 2014. / Submitted by Márcia Araújo (marcia_m_bezerra@yahoo.com.br) on 2015-06-10T16:34:09Z No. of bitstreams: 1 2014_tese_almmtorres.pdf: 1743947 bytes, checksum: b69b11c306c0b6224d2a75f8b2f29531 (MD5) / Approved for entry into archive by Márcia Araújo(marcia_m_bezerra@yahoo.com.br) on 2015-06-11T11:16:51Z (GMT) No. of bitstreams: 1 2014_tese_almmtorres.pdf: 1743947 bytes, checksum: b69b11c306c0b6224d2a75f8b2f29531 (MD5) / Made available in DSpace on 2015-06-11T11:16:51Z (GMT). No. of bitstreams: 1 2014_tese_almmtorres.pdf: 1743947 bytes, checksum: b69b11c306c0b6224d2a75f8b2f29531 (MD5) Previous issue date: 2014 / The work at hand is about an etnographic research done at Laboratório de Pesquisa Muitimeios da Faculdade de Educação [Multimedia Research Lab of Education School] (UFC), which has the following goals: to analyse the construction of the Multimedia Research Lab, its conception and use of digital technology, in the perspective of professors/researchers; to evidence how the Multimedia Research Lab, as a matrix in Exact Sciences, was legitimating itself inside FACED/UFC; to verify the place of this Lab in the formation of its professors/researchers; to identify the specialities of Multimedia in the fields: theoretical-metodological, technical-operative and political in its acting places. The investigation cut of this study was led to the segment professors/researchers bound to the Lab from 1997 to 2012. In the fieldwork it was used things such as observation diary, documental research and semistructured interviews. Data points that this Lab has a conception being guided by the comprehension of the mankind relation with technology in a socio-cultural context, acknowledging technology as a product of mankind, though the ones who create it, elaborate it, but is also modified by it. It was still observed a tentative of “looking” criticly over technology from its uses, beyond the concern in focusing on authors that study technological matters. Beyond that global view, it is noticed that Multimedia has a perspective well directed to the use of digital technology in education, aggregating as a didatic resourse, which can auxiliar not only activities aimed at teaching area, but also activities that involve project elaboration. Nevertheless, it was verified that this conception of technology does not restrict to the aspect of teaching, it extends all the laboratorial activities that we could call “technology philosophy” present at the lab. It was verified the since the Lab constitutes itself as “place to work with technology” in FACED, it makes academic community create expectations that the researchers bound to it also make the work of computer technician. However, there has been tried to demistify that the focus is not technology, but to appropriate of its potencialities aiming at the learning. The testimonials enhanced the conception of the Lab as a place to discuss, to reflect, to try, to give sense to the use of digital technology in education, highlighting that this comprehension was being built in dialogs with theorists of education field. This way, it shows this Lab leaves this dimension more technical to think of the use of technology in education, becoming a place that little by little appropriates itself and being al so appropriated by education, being its big contribution the formative aspect. From the development of its activities, Multimedia has shown its “sense” to the technology in the field of education, to students and researchers that are graduated there. Concerning reflexions of its uses, this is translated in know-how. However, it is highlighted that Multimedia has a digital culture which is self and this happens in the inside of developed practices collectively. The observations indicate that Multimedia as “house of belonging of the subjects”, as also constitutes in changing space, user-friendliness, but also a place marked by dispute and power relation. It was verified that part of this building finds it self pillared in the “figure” of its coordinator, who makes it work, by his way, this Lab. No doubt, this Lab is the fruit of his legacy as product of knowledge involving the fields of math education, computers education, digital inclusion and distance education. It is also possible to infer that one of this Lab especialities is about the concerning of theoretical dimension, because the results of its production is what guarantee its legitimacy and importance in the academic scenary. After the research, it was possible to decipher the reality of Multimedia Lab, looking at it from the outside of a square place, closed walls, full of electronic equipament, many times ”imprisoning” the people in a inside to inside view. This way, we consider that this work allowed the trajectory of this Lab fro m its rupture with a cartesian perspective, routine, reiterative and uniquely burocratic, putting itself face to face with history and the social contemporary processes. / Trata de uma pesquisa de cunho etnográfico realizado no Laboratório de Pesquisa Multimeios da Faculdade de Educação (UFC), tendo os seguintes objetivos: analisar a construção do Laboratório de Pesquisa Multimeios, sua concepção e uso das tecnologias digitais, na perspectiva dos professores/pesquisadores; evidenciar como o Laboratório de Pesquisa Multimeios, com matriz nas Ciências Exatas, foi se legitimando dentro da FACED/UFC; averiguar o lugar deste Laboratório na formação de seus professores/pesquisadores; identificar as especificidades do Multimeios nos campos teórico-metodológico, técnico-operativo e político em seus espaços de atuação. O recorte de investigação deste estudo voltou-se ao segmento professores/pesquisadores vinculados ao Laboratório desde 1997 a 2012. No trabalho de campo, utilizou-se de instrumentos, como diário de observação, pesquisa documental e entrevistas semiestruturadas. Os dados apontam que este Laboratório possui uma concepção pautada na compreensão do homem que se relaciona com as tecnologias em um contexto sóciocultural, reconhecendo a tecnologia como produto do homem, que, embora a crie, a elabore, mas que também é modificado pela tecnologia. Observou-se ainda uma tentativa em “olhar” criticamente sobre essas tecnologias a partir de seus usos, além de uma preocupação em debruçar-se sobre os autores que estudam as questões de cunho tecnológico. Além dessa visão global, percebe-se que o Multimeios tem uma perspectiva bastante direcionada para o uso das tecnologias digitais na educação, agregando-a como um recurso didático que pode auxiliar não só as atividades voltadas para a docência, como também para ações que envolvem a elaboração de projetos. Verificou-se, entretanto, que essa concepção de tecnologia não se restringe apenas ao aspecto da docência, mas se estende a todas as atividades do Laboratório, o que poderíamos chamar de “filosofia da tecnologia” presente no Laboratório. Constatou-se que o fato de este Laboratório constituir-se como “lugar que trabalha com tecnologias” na FACED faz que a comunidade acadêmica gere expectativas de que os pesquisadores vinculados ao Laboratório realizem também o trabalho de um técnico de informática. Porém, busca desmistificar que o foco não é a tecnologia, mas sim apropriar-se de suas potencialidades objetivando o aprendizado. Os depoimentos reforçaram ainda a concepção do Laboratório como lugar que discute, reflete, experimenta, atribui sentido à utilização das tecnologias digitais na Educação, ressaltando que essa compreensão foi construída em diálogo com teóricos do campo da Educação. Desse modo, evidencia-se que este Laboratório vai deixando essa dimensão mais técnica para pensar no uso das tecnologias na Educação, tornando-se um lugar que aos poucos vai se apropriando e sendo também apropriado pela educação, sendo que seu grande contributo é o aspecto formativo. Com o desenvolvimento de suas atividades, o Multimeios foi mostrando seu “sentido” para tecnologia no campo da Educação, para discentes e pesquisadores que são por lá formados. No que diz respeito às reflexões sobre os usos, isso é traduzido em um saber-fazer. Ressalta-se que o Multimeios possui uma cultura digital que lhe é própria, e isso acontece no interior das práticas desenvolvidas coletivamente. As observações indicam o Multimeios como “casa de pertença dos sujeitos”, como também se constitui em um espaço de trocas, convivialidade, mas também um lugar marcado por disputa e relações de poder. Verificou ainda que parte dessa formulação encontra-se alicerçada na “figura” de seu Coordenador, que faz funcionar, à seu modo, esse Laboratório. Sem dúvida, esse lugar é fruto do seu legado como produtor de saberes envolvendo as áreas de Educação matemática, Informática Educativa, Inclusão Digital e Educação a Distância. É também possível inferir que uma das especificidades deste Laboratório diz respeito à preocupação com a dimensão teórica, mesmo porque os resultados de suas produções é que garantem sua legitimidade e importância no cenário acadêmico. Após esta pesquisa, foi possível decifrar a realidade do Laboratório Multimeios, olhando-o de fora de um espaço quadrado, fechado entre quatro paredes, composto por um amontoado de equipamentos eletrônicos, que, muitas vezes, “aprisionam” os sujeitos numa visão de dentro para dentro. Desse modo, considera-se que este trabalho permitiu explorar a trajetória deste Laboratório com base numa ruptura com uma perspectiva cartesiana, rotineira, reiterativa e unicamente burocrática, colocando-o frente a frente com a história e os processos sociais contemporâneos.

Doctor of Philosophy / Electrical and Computer Engineering / Anil Pahwa / Noel N. Schulz / Microgrids with distributed generators have changed how protection and control systems are designed. Protection systems in conventional U.S. distribution systems are radial with the assumption that current flows always from the utility source to the end user. However, in a microgrid with distributed generators, currents along power lines do not always flow in one direction. Therefore, protection systems must be adapted to different circuit paths depending on distributed generator sites in the microgrid and maximum fuse ampere ratings on busses. Adaptive overcurrent protection focuses on objectives and constraints based on operation, maximum load demand, equipment, and utility service limitations. Adaptive overcurrent protection was designed to protect the power lines and bus feeders of the microgrid with distributed generators by coordinating fuses and relays in the microgrid. Adaptive overcurrent protection was based on the relay setting group and protection logic methods. Non-real-time simulator (NRTS) and real-time simulator (RTS) experiments were performed with computer-based simulators. Tests with two relays in the loop proved that primary relays tripped faster than backup relays for selectivity coordination in the adaptive overcurrent protection system. Relay test results from tripping and non-tripping tests showed that adaptive inverse time overcurrent protection achieved selectivity, speed, and reliability. The RTS and NRTS with two relays in the loop techniques were described and compared in this work. The author was the first graduate student to implement real-time simulation with two relays in the loop at the Burns & McDonnell - K-State Smart Grid Laboratory. The RTS experimental circuit and project are detailed in this work so other graduate students can apply this technique with relays in the loop in smart grid research areas such as phasor measurement units, adaptive protection, communication, and cyber security applications.

Submitted by MARCIO FEITOZA (marciofeitoza@yahoo.com.br) on 2018-09-13T04:39:27Z No. of bitstreams: 1 12.09.18 Dissertação_MarcioAmorimFeitoza_VersãoFinalíssima.pdf: 2741234 bytes, checksum: 86a94646c23d886db2b05434df156c89 (MD5) / Approved for entry into archive by ÁUREA CORRÊA DA FONSECA CORRÊA DA FONSECA (aurea.fonseca@fgv.br) on 2018-09-19T16:27:18Z (GMT) No. of bitstreams: 1 12.09.18 Dissertação_MarcioAmorimFeitoza_VersãoFinalíssima.pdf: 2741234 bytes, checksum: 86a94646c23d886db2b05434df156c89 (MD5) / Made available in DSpace on 2018-09-26T19:20:09Z (GMT). No. of bitstreams: 1 12.09.18 Dissertação_MarcioAmorimFeitoza_VersãoFinalíssima.pdf: 2741234 bytes, checksum: 86a94646c23d886db2b05434df156c89 (MD5) Previous issue date: 2018-06-15 / Objetivo – Este estudo tem como objetivo analisar os laboratórios de inovação organizacional-administrativa (LIOA) e propor um primeiro modelo de LIOA para a gestão central da Fundação Oswaldo Cruz (Fiocruz). Metodologia – A pesquisa utiliza a metodologia de estudo de caso e a pesquisa aplicada. Resultados – Os resultados apontam para a possibilidade de se estruturar um LIOA para a gestão da Fiocruz, em linha com os mais atuais desenvolvimentos e conceitos teórico-prático-metodológicos. Limitações – As principais limitações do trabalho referem-se a não apresentação de análises de viabilidade técnico-econômica e de risco ou um plano de trabalho detalhado para a implantação do LIOA. Contribuições práticas – A partir deste estudo é possível ter uma melhor compreensão da relevância da estruturação do LIOA e das contribuições que poderão ser aportadas na governança e gestão de inovação de uma Instituição de Ciência e Tecnologia (ICT) empreendedora, além de uma contribuição acadêmica lato sensu para a governança e gestão das instituições públicas. Contribuições sociais – Ao se propor um modelo de LIOA que possa aperfeiçoar a gestão da Fiocruz, e com a sua efetiva implementação, há a potencialização do retorno direto de novos e melhores serviços para a sociedade brasileira. Originalidade – Ao que se conhece, este é o primeiro estudo que propõe um modelo específico de LIOA para a gestão central da Fiocruz. / Purpose – This study aims to analyze the organizational-administrative innovation laboratories (OAIL) and propose a first model of OAIL for the central management of Oswaldo Cruz Foundation - Fiocruz. Design/Methodology – The investigation uses the methodology of case study and applied research. Findings – The results point to the possibility of structuring an OAIL for the management of Fiocruz, in line with the most current developments and theoretical-practical-methodological concepts. Limitations – The main limitations of the work refer to the non-presentation of technical-economic and risk-feasibility analyses or a detailed work plan for the OAIL´s implementation. Practical implications – From this study on, it is possible to have a better understanding of the relevance of the OAIL´s structuring and of the contributions that can be attached in the governance and management of innovation in an entrepreneurial science and technology institution (STI), in addition to the sensu lato academic contribution in the governance and management of public institutions. Social implications – When proposing a model of OAIL, which can improve the management of Fiocruz and, with its effective implementation, there is the potential of direct return of new and better services to the Brazilian society. Originality – As it is known, this is the first study that proposes a specific model of an OAIL for the central management of Fiocruz.

Orientador: Luiz Otavio Saraiva Ferreira / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica / Made available in DSpace on 2018-08-06T16:27:32Z (GMT). No. of bitstreams: 1 Espindola_AlexeyMarques_M.pdf: 1293939 bytes, checksum: 66ab2d16dc552294762d6c3708cda71b (MD5) Previous issue date: 2006 / Resumo: Os sistemas microfluidicos estão evoluindo rapidamente, encontrando vastas aplicações na mais diversas áreas do conhecimento. Os Lab-on-Chips, LOCs, são dispositivos capazes de realizar análises químicas e bioquímicas em um único chip. Este dispositivo pode causar grande impacto no mercado de análises laboratoriais, por este motivo vem ganhando grande atenção Para realizar estas análises os LOCs necessitam de microbombas capazes de transportar quantidades ínfimas de fluidos em seus canais de maneira acurada e uniforme. Desta forma, o interesse em modelar e fabricar microbombas tomou-se uma área fértil para a pesquisa. Neste trabalho foi desenvolvida a modelagem de uma microbomba peristáltica de elastõmero, tipo de bomba mais conveniente para Lab-on-Chips, utilizando a técnica de analogias eletro-mecânicas que consiste em representar um dispositivo por um circuito elétrico equivalente. As análises das simulações podem ser realizadas usando programas de análise de circuitos elétricos. Dois modelos foram apresentados neste trabalho. O primeiro é a reprodução do modelo de bomba criado por Jacques Goulpeau, em que o modelo de uma válvula é extrapolando para toda a microbomba. O segundo contém o circuito elétrico equivalente da bomba completa mostrando a interações entre suas partes. Os resultados mostram que o comportamento da microbomba não pode ser completamente descrito pelo modelo extrapolado a partir de uma válvula, devido às interações entre três válvulas. As simulações do circuito equivalente da bomba completa mostraram que os efeitos das interações entre as válvulas explicam claramente a diferença entre a vazão prevista pelo modelo de Goulpeau e os dados experimentais por ele obtidos, sendo possível ajustar o modelo aos dados experimentais / Abstract: Microfluidies systems are growing rapidly, finding a large nwnber of applications in many fields. Lab-on-ehips, LOC, are deviees that ean perform ehemical and biochemical analyses in a ehip. This device ean cause high impact on laboratorial analyses market, and then it is gaining large attention. In order to execute these analyses on LOC, mieropumps are necessary to transport a tiny quantity of fluid between the channeIs with accuracy and uniformity. Thus, the interests of modeling and fabrication mieropwnps are increasing and become a fertile research field. The goal of this work were a modeling of elastomer peristaltic micropwnp, the most suitable pwnp for LOCs, using the electro- mechanical analogy technique that consist in represent the device in a electrical equivalent networks. Then the simulation analyses can be done on electrical simulation tools. Two models were presented in this work. The first is reproduction of the pwnp model made by Jacques Goulpeau et aI., where the valve model is extrapolated to the whole mieropwnp. The second contains the electrical equivalent circuit that represents the whole device showing the interactions between its eomponents. The results showed that micropump behavior eouldn't completely deseribe by the extrapolated model ftom a valve, because the interactions between the three valves. The simulations of electrical equivalent eircuit of the whole pwnp showed that the interaction between the valves explain the difference between of flow rate foreseen by Goulpeau model and his experimental data, being possible to adjust the model to the experimental data / Mestrado / Mecanica dos Sólidos e Projeto Mecanico / Mestre em Engenharia Mecânica

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No. of bitstreams: 1 eliaberodriguesaraujo.pdf: 1339284 bytes, checksum: 08a14eb7a1e8cbb760ade8f284726b9d (MD5) Previous issue date: 2017-10-24 / O presente estudo, desenvolvido no Programa de Pós-graduação em Gestão e Avaliação da Educação Pública da Universidade Federal de Juiz de Fora, busca compreender como a equipe gestora de uma escola pública situada no município de Araçuaí pode contribuir para a inclusão digital docente e para o uso efetivo do Laboratório de Informática diante da escassa utilização dos recursos tecnológicos pelos professores em sala de aula. A escola escolhida como campo de pesquisa atende a uma clientela matriculada no Ensino Fundamental II, ou seja, do 6º ao 9º ano, pertencente à Superintendência Regional de Ensino de Araçuaí/Minas Gerais. Embora o estabelecimento de ensino possua equipamentos tecnológicos, estes são pouco utilizados pelos docentes no desenvolvimento do seu trabalho pedagógico, assim como o Laboratório de Informática. Diante disso, surgiu o seguinte questionamento: quais ações podem ser desenvolvidas pela gestão da escola para o processo de incorporação das tecnologias nas práticas docentes em sala de aula? A partir desta questão, este trabalho buscou alcançar os seguintes objetivos: (a) descrever o contexto da escola envolvida na pesquisa e a sua infraestrutura tecnológica no que tange ao número de equipamentos tecnológicos existentes e investigar se este dado está relacionado ao pouco uso pelos docentes; (b) analisar os entraves apontados pelos participantes da pesquisa que podem prejudicar a utilização das Tecnologia da Informação e Comunicação - TIC no cotidiano escolar; (c) propor ações que possam efetivar a inclusão digital pelo corpo docente em sua rotina escolar. Nessa perspectiva, a pesquisa procurou problematizar questões como a importância da tecnologia na educação, a existência ou não de práticas pedagógicas aliadas à TIC e o papel do gestor na promoção da formação continuada dos servidores que atuam nesta escola. Para atingir esse propósito, optou-se pela pesquisa de cunho qualitativo, sendo que os instrumentos utilizados para produção de dados foi a entrevista semiestruturada, realizada com o Vice-diretor e a Supervisora Pedagógica. Além disso, recorremos ao grupo focal realizado com professores de diversas áreas do conhecimento com o propósito de investigar os obstáculos apontados pelos docentes que prejudicam o uso das ferramentas tecnológicas em sala de aula. Com base nos dados produzidos por intermédio da pesquisa de campo, foi proposto um Plano de Ação Educacional – PAE, por meio de ações as quais foram estabelecidas para a efetivação do uso das TIC nesta escola, como a formação docente, o uso pedagógico do Laboratório de Informática e da Sala de Vídeo, o fortalecimento da Inclusão Digital no Regimento Escolar e no Projeto Político Pedagógico e a melhoria da estrutura física dos espaços de aprendizagens. / This study, developed in the Graduate Program in Management and Evaluation of Public Education of the Federal University of Juiz de Fora, seeks to understand how the management team of a public school located in the municipality of Araçuaí can contribute to the digital inclusion of teachers and to the effective use of the Computer Laboratory in the face of the scarce use of technological resources by teachers in the classroom. The school chosen as a research field targets students in Elementary Education II, that is, from the 6th to the 9th school years, belonging to the Regional Superintendence of Education of Araçuaí / Minas Gerais. Though this educational institution does have technological equipment, these are little used by teachers in the development of their pedagogical work, as well as the Computer Laboratory. In this scenario the following question has arisen: what actions can be developed by the school management for the process of incorporating technologies in the teaching practices in the classroom? Based on this, this work sought to achieve the following objectives: (a) describing the context of the school involved in the research and its technological infrastructure regarding the number of existing technological equipment and investigate whether this data is related to the lack of use by the teachers; (b) analyzing the obstacles pointed out by the research participants that may impair the use of Information and Communication Technology (ICT) in school daily life; (c) proposing actions that may effect the digital inclusion by the faculty in their school routine. From this perspective, the research aimed to problematize issues such as the importance of technology in education, the existence or absence of pedagogical practices allied to ICT and the role of the manager in the promotion of the continuous training of the servers that work in this school. In order to achieve this purpose, qualitative research was chosen, and the instruments used for data production were semi-structured interviews with the Deputy director and the Pedagogical Supervisor. In addition to it, we used the focus group with teachers from different areas of knowledge in order to investigate the obstacles pointed out by them that hinder the use of technological tools in the classroom. Based on the data produced through the field research, an Educational Action Plan (EAP) was proposed through actions that were established for the effective use of ICT in this school, such as teacher training, the pedagogical use of the Computer Laboratory and the Video Room, the strengthening of Digital Inclusion in the School Regiment and in the Political Pedagogical Project, and the improvement of the physical structure of the learning spaces.

Le processus de digestion anaérobie conduit à la production de biométhane, un vecteur flexible d’énergie renouvelable. L’amélioration du rendement de ce processus est souvent évoquée comme dépendante de la compréhension approfondie de la structure et de la dynamique des communautés microbiennes qui y sont impliquées. L’objectif de la thèse a été de caractériser les communautés microbiennes impliquées dans le processus de digestion anaérobie et de déterminer l’influence de facteurs opérationnels sur leurs dynamiques. Nous nous sommes en particulier intéressés à l’augmentation du taux de charge organique, le type de digesteurs anaérobies (réacteur continu perpétuellement mélangé vs réacteur anaérobie à chicane), mais aussi à la phase de démarrage d’un digesteur de ferme avec une montée en température. En absence de conditions contraignantes, nous avons observé l’installation de populations méthanogènes les mieux adaptées à la production de biogaz dans les réacteurs étudiés et la mise en place de communautés microbiennes similaires entre réacteurs réplicats. Cependant, des changements au niveau opérationnel ont conduit au développement de communautés divergentes en termes de structure. En effet, en présence d’un environnement déterministe, la plupart des bactéries et archées impliquées en digestion anaérobie ont montré une redondance fonctionnelle à la perturbation. Toutefois, certaines populations bactériennes dominantes ont également pu montrer des phénomènes de résistance, en termes de présence et d’abondance, à l’évolution des conditions environnementales. Au cours de nos études, les différentes communautés s’installant dans les digesteurs étudiés ont également montré des aptitudes variables pour la production de biogaz. De plus, des corrélations entre les communautés bactériennes, archées et eucaryotes ont aussi été démontrées, soulignant le rôle non négligeable des eucaryotes dans le processus de digestion anaérobie et l’installation de communautés microbiennes dominantes et spécifiques à la production de biogaz. Ainsi, les changements au sein de la communauté microbienne résultant de la modification progressive de facteurs opérationnels, et ce bien avant l’apparition des premiers symptômes d’inhibition de la production de biogaz, pourraient permettre le développement d’indicateurs microbiens de l’état du processus de digestion anaérobie et donc la mise en place d’une gestion microbiologique raisonnée des digesteurs anaérobies / The anaerobic digestion process leads to the production of biomethane, a versatile renewable energy vector. The dynamics and interactions between specific microbial groups are currently considered as key research subjects towards the improvement of the anaerobic digestion (AD) process. Indeed, deeper knowledge of the ecology of AD, the dynamics of the microbial populations and their structure could provide valuable information regarding unexplained and unpredictable failures or malfunctioning of the anaerobic digestion process. The aim of this work was to characterize the microbial communities involved in the AD process, and to study their responses due to the change of operational parameters such as an increase of the organic loading rate, the reactor type (completely stirred tank reactor vs anaerobic baffled reactor), or the start-up phase of a farm reactor with a shift from psychrophilic to mesophilic temperature range. While we observed the installation of similar microbial populations between replicated reactors under stable conditions, best adapted to biogas production, the microbial communities started to diverge once the operational parameters changed. Indeed, due to deterministic environment, most of bacteria and archaea showed redundant functional adaptation to the changing environmental conditions. However, some dominant bacterial populations were also resistant in terms of presence and abundance to the environmental change. The specific microbial communities established in our studied reactors showed also discrepancies in terms of biogas yields. Furthermore, correlations between the bacterial, archaeal and eukaryotic communities were pointed out, indicating the putative influence of eukaryotes on the anaerobic digestion process and the establishment of the other microbes having crucial functions during the anaerobic biomass digestion. Interestingly, shifts inside the anaerobic microbial community due to the gradual change of operational parameters, were detected prior to any biogas production inhibition, giving the opportunity for the development of potential early microbial indicators for assessing the AD process status and improving the microbial management of anaerobic reactors

Le travail de thèse présenté dans ce manuscrit s’inscrit dans une dynamique d’intégration de matériaux non conventionnels en systèmes microfluidiques. Il vise à démontrer le potentiel du cPDMS, un matériau nanocomposite formé d’une matrice de polydiméthylsiloxane rendu conducteur par l’ajout de nanoparticules de carbone. Compatible avec les procédés technologiques habituels, le cPDMS peut être structuré dans une large gamme d’épaisseurs et de géométries mais présente surtout l’avantage de pouvoir être collé irréversiblement sur verre, PDMS et silicium. Son intégration est parfaitement étanche, rapide à mettre en oeuvre, et très économique. La première partie du manuscrit est consacrée à la caractérisation de ce matériau. Ses propriétés électriques et de surface, pouvant être critiques pour une utilisation en microfluidique, ont été particulièrement étudiées. Les champs électriques offrant de nombreuses possibilités pour réaliser des fonctions clés en microfluidique (détection, séparation, manipulation de fluides ou de particules), nous avons choisi d’évaluer l’intérêt d’électrodes de cPDMS dans deux types d’applications. Les aspects de détection ont d’abord été mis en évidence à l’aide de mesures électrochimiques. Cette méthode a permis à la fois de caractériser la surface du cPDMS tout en validant son utilisation potentielle pour des applications d’analyses électrochimiques. Dans la dernière partie du manuscrit, le matériau a été testé pour la manipulation de particules à travers l’observation de différents phénomènes électrocinétiques. Ceux-ci ont conduit à la mise au point de dispositifs microfluidiques (intégrant des lectrodes de cPDMS) dédiés à la lyse et à l’électrofusion de cellules. / The work presented in this thesis deals with the integration of non-conventional materials in microfluidic systems. It aims to demonstrate the potential of cPDMS, a conductive nanocomposite material made up of polydimethylsiloxane matrix mixed with carbon nanoparticles. Compatible with the usual technological processes such as soft lithography, cPDMS can be microstructured in a large range of thicknesses and geometries. Moreover, cPDMS can be quickly, irreversibly and perfectly sealed to glass, PDMS and silicon substrates, something that is not possible for conventional metallic electrodes. The first part of the manuscript is centered on the characterization of this material. Its electrical and surface properties that may turn out critical for microfluidic applications have been particularly studied. Electric fields present many opportunities to perform key functions in microfluidic (detection, separation, fluid or particles handling). We have chosen to assess the potential of cPDMS electrodes for two kinds of applications. Aspects of detection were first demonstrated using cyclic voltammetry measurements. This electrochemical method has enabled both to characterize the cPDMS surface while validating its potential as an electrochemical analysis tool. In the last part of this manuscript, cPDMS was tested for the electrokinetic manipulation of particles through thre study of different electrical fields with induced phenomena. This has led to the development of microfluidic devices (integrating cPDMS electrodes) designed for cell lysis and cells electrofusion.

Rural development is a priority for poverty alleviation and development in developing countries, as the majority of the poor live in rural areas. Information and knowledge are key strategic resources for social and economic development as they empower rural communities with the ability to expand their choices through knowing what works best in their communities. Information and communication technologies (ICT) play a significant role in supporting rural development activities through providing supportive development information and creating essential interconnectivities between rural areas and more developed regions. However, rural ICT for development (ICT4D) is still at best a ‘working hypothesis’, faced with barriers and challenges associated with implementation and use in the rural environment; which threaten the success, sustainability or relevance of an ICT intervention. Many key questions remain largely unanswered, with no concrete or credible data to support a wide range of claims concerning the use of ICT for development. The evaluation of rural ICT projects is indispensable as it determines the need, effectiveness, impact, sustainability and extent of the awareness of the contribution such projects or programmes can make in poverty alleviation and development. Even so, existing ICT4D evaluations are confrontedwith shortcomings and challenges which influence the accuracy and reliability of evaluation conclusions. These shortcomings highlight the need to embark on a more comprehensive evaluation approach, sensitive to the rural environment. This research study was aimed at developing a comprehensive rural ICT evaluation framework to assess ICT projects and interventions that work toward supporting poverty eradication in rural communities. A multi-method approach was used to determine the multiple variables and components associated with rural ICT evaluation, and then to determine how these variables interrelate. The approach is founded on programme evaluation, ICT for development evaluation, and information systems evaluation. Firstly, key domains of programme evaluations combined with an exploration of the need and shortcomings of ICT4D evaluation, contributed to the development of a template to analyse existing ICT4D evaluation frameworks and information systems frameworks, based on a selection of criteria. The combined analysis of the two groups of frameworks compares and contrasts key characteristics that form the structure of a comprehensive evaluation. This analysis and a review of programme evaluation enabled the development of a Rural ICT Comprehensive Evaluation Framework (RICT-CEF) that encompasses the key components essential for a comprehensive evaluation of rural ICT projects. The theoretical framework aims to inform ICT intervention to improve and support rural development, through the application of fundamental and interconnected evaluation domains sensitive to the rural environment, throughout the project’s lifecycle. In order to obtain a better understanding and application of the RICT-CEF, a real-life case study investigation of the Siyakhula Living Lab reveals the lessons learned (shortcomings and suitability) from applying a prototype of the framework in a rural environment. The study is characteristically a rich case study, as the investigation occurs at two levels: 1) The actual evaluation of the project to obtain results to improve or guide the project, through applying domains of the RICT-CEF, and 2) Observing and investigating the application of the RICT-CEF framework to learn lessons from its evaluation process in a real-life context. The research study reveals the compatibility of the RICT-CEF framework in a real-life rural ICT intervention case, and builds lessons learned for enhancing the framework and guiding future evaluations in ICT4D. The RICT-CEF can possibly be viewed as a platform for the key domains and processes essential for the evaluation of ICT4D interventions; which can be customised for a variety of ICT projects, such that a comparative assessment of projects can provide measurement and further awareness of the impact of rural ICT in developing countries.