Made available in DSpace on 2016-04-04T18:36:43Z (GMT). No. of bitstreams: 1 Rosemary Passos.pdf: 846677 bytes, checksum: af03c3a21f5caf359c4a396de5582270 (MD5) Previous issue date: 2003-02-21 / The main hypothesis presented here, in this researcher, is that the knowledge , the use of tools and support for the recovery of information, allied with the normalization of the technical structure used in scientific works, if applied since from the very beginning of any course (college graduation, post graduation or specialization), will be essential to the professor s formation. The main objectives of this work were to present analyse with an emphasis in the importance of the use of technics in information recovery and bibliographical normalization, in the process of professor s formation with the cooperation of the librarian. With the help of user s capacitacion seminar, idealized by Libraries System of UNICAMP - SBU, but created specifically for the educational area; to make a general evaluation about the user s capacitacion seminar and its structure; to investigate the quality of the attendance in the reference service of the Faculty of Education the UNICAMP Library. The research method utilized here was the case study, which provided an elaboration of a diagnosis with approaches of the characteristics of a group of students, about their difficulties in utilizing the resources for the information recovery and the use of the library services. The study showed during its development, the importance to make the professor more capable in what concerns to informational resources, the necessity of qualification and capacitation of librarians to work as educators to the college students, the necessity of the creation of disciplines with a special focus in this aspects inside for the classroom and principally the interactivity between librarians and professors, in order to develop a effective partnership in the educational environment. / A principal hip?tese, apresentada nesta pesquisa, ? a de que o conhecimento e o uso de ferramentas e suportes para recupera??o da informa??o, e a normaliza??o da estrutura t?cnica de trabalhos cient?ficos, se aplicados desde o in?cio de qualquer curso (p?s-gradua??o, gradua??o, especializa??o), ser?o fundamentais para a forma??o de professores. Os objetivos desse trabalho foram apresentar uma an?lise que enfatizasse a import?ncia do uso de t?cnicas de recupera??o de informa??o e normaliza??o bibliogr?fica no processo de forma??o de professores, com a colabora??o do bibliotec?rio, utilizando-se de um Curso de Capacita??o de Usu?rios, estruturado pelo Sistema de Bibliotecas da UNICAMP SBU, mas direcionado especificamente para a ?rea educacional; fazer uma avalia??o geral do Curso de Capacita??o em sua estrutura; e investigar a qualidade de atendimento no servi?o de refer?ncia da Biblioteca da Faculdade de Educa??o da UNICAMP. O m?todo de pesquisa utilizado foi o de Estudo de Caso, que possibilitou a elabora??o de um diagn?stico com abordagens das caracter?sticas do grupo de alunos que faziam parte da amostra, analisando suas dificuldades em utilizar os recursos para a recupera??o da informa??o e utiliza??o dos servi?os da biblioteca. O estudo demonstrou durante seu desenvolvimento, a import?ncia da capacita??o de professores no que se refere aos recursos informacionais, a necessidade de qualifica??o e capacita??o dos bibliotec?rios para atuarem como educadores perante os alunos dos cursos, a necessidade do estabelecimento de disciplinas que contemplem esses aspectos dentro da sala de aula, e principalmente a intera??o entre bibliotec?rios e professores, para que estes dois profissionais possam desenvolver um trabalho em parceria no contexto educacional.

Submitted by SBI Biblioteca Digital (sbi.bibliotecadigital@puc-campinas.edu.br) on 2017-03-23T13:43:04Z No. of bitstreams: 1 FRANCISCO JOS? CARDOSO.pdf: 18250716 bytes, checksum: 3d4c82c599397b6cafcc66385555685d (MD5) / Made available in DSpace on 2017-03-23T13:43:04Z (GMT). No. of bitstreams: 1 FRANCISCO JOS? CARDOSO.pdf: 18250716 bytes, checksum: 3d4c82c599397b6cafcc66385555685d (MD5) Previous issue date: 2017-02-07 / Water environments are spaces that present ecological-functional importance for the maintenance of given biodiversity. Nonetheless, in the history of cities, its physicalenvironmental decharactation is recurrent, specially by the adoption of solutions focusing hydrosanitarism which do not take into consideration the relations between the environmental and urban dynamics. The structural contradictions of the contemporary urbanization process intensify the problems and the challenges to be overcome. The contemporary interventions studied show a tendency to rethink the techno-scientific model adopting new ecological-environmental paradigms, developed in accordance to the specificities of its environmental and urban context. As a contributing result of the research, recommendations for the elaboration of projects in a dialogical and systemic ways are presented. First of all, the aspects related to the environmental dynamics and the transformations resulting from the process of urbanization are approached, highlighting inadequate interventions that drive the population away from the physical, social and cultural relationship with urban waterways and the new perspectives which embody such watershed as structural element. Following, the background of urbanism with environmental-ecological concerns is exposed, its strands and a survey of national and international experiences of projects carried out in water environments, as well as the reflection on the new paradigms of urbanism with an ecological-environmental preoccupation. 150 projects in 24 countries, were surveyed and analyzed, due to the interventions value water within urban environments. From these, three projects were selected and analyzed in detail, using an specific methodology that seeks to establish a systemic and dialogical reading. In the last part of the thesis, recommendations in relation to methodological aspects and solutions to intervention projects that promote the incorporation and valorization of the water environment elements in the morphology and the urban landscape are presented, taking into consideration the relations between the environmental and urban dynamics. It was concluded that the projects of intervention in urban water environments must establish the dialectic among the environmental, urban and human dimension, having as an assumption that mankind does not create new systems, that the city has its own rationality and that the urban water environments are spaces with multiple functions. Its design must come from the comprehension of the environmental and urban dynamics, establishing principles and criteria coherent to this reality, which consider the multiple dimensional and scaled relations, featuring multiple objectives to respond to the complexity of the urban environment. The intervention should contemplate and/or articulate the scales of the regional and urban planning with punctual interventions in the water environment. The differential, which qualifies the intervention in urban water environments, is the valorization of the water as an aesthetic element and its incorporation as element of the morphology and of the urban landscape, from the comprehension of its watershed and of the relation of larger and smaller scales. / Os ambientes fluviais s?o espa?os que apresentam intera??es ecol?gico-funcionais importantes para a manuten??o da biodiversidade. Por?m, na hist?ria das cidades ? recorrente a sua descaracteriza??o fisco-ambiental, principalmente, pela ado??o de solu??es com enfoque hidrossanit?rio que n?o levam em considera??o as rela??es entre a din?mica ambiental e urbana. As contradi??es estruturais do processo de urbaniza??o contempor?nea intensificam os problemas e os desafios a serem enfrentados. As interven??es contempor?neas estudadas demonstram a tend?ncia de repensar o modelo t?cnico-cientifico, adotando novos paradigmas ecol?gico-ambientais, desenvolvidos de acordo com as especificidades do seu contexto ambiental e urbano. Como contribui??o resultante da pesquisa s?o apresentadas recomenda??es para elabora??o de projetos de forma dial?gica e sist?mica. Primeiramente, s?o abordados os aspectos relacionados com a din?mica ambiental e as transforma??es decorrentes do processo de urbaniza??o, com destaque para as interven??es inadequadas que levam a popula??o ao afastamento f?sico, social e cultural em rela??o aos cursos d??guas urbanos e ?s novas perspectivas que incorporam a bacia hidrogr?fica como elemento estruturante. A seguir s?o expostos os antecedentes do urbanismo com preocupa??o ecol?gico-ambiental, suas vertentes e o levantamento das experi?ncias nacionais e internacionais de interven??es em ambientes fluviais, assim como a reflex?o sobre os novos paradigmas do urbanismo com preocupa??o ecol?gico-ambiental. Foram levantados e analisados aspectos gerais em rela??o a concep??o de 150 projetos, em 24 pa?ses, com interven??es que valorizam a ?gua no meio urbano. Os projetos desenvolvidos para as cidades de Velenje (Eslovenia), Denver (Estados Unidos) e Belo Horizonte (Brasil) foram selecionados e analisados detalhadamente, a partir de uma metodologia pr?pria que procura estabelecer uma leitura sist?mica e dial?gica. Na parte final do trabalho s?o apresentadas recomenda??es em rela??o aos aspectos metodol?gicos e solu??es de projetos de interven??o que promovam a incorpora??o e valoriza??o dos elementos do ambiente fluvial na morfologia e na paisagem urbana, levando-se em considera??o as rela??es entre a din?mica ambiental e urbana. Conclui-se que os projetos de interven??o em ambientes fluviais urbanos devem estabelecer a dial?tica entre a dimens?o ambiental, urbana e humana, tendo como pressupostos que o homem n?o cria novos sistemas, que a cidade possui uma racionalidade pr?pria e que os ambientes fluviais urbanos s?o espa?os com m?ltiplas fun??es. Sua elabora??o deve partir da compreens?o da din?mica ambiental e urbana, estabelecendo princ?pios e crit?rios coerentes com essa realidade, que levem em considera??o as m?ltiplas rela??es dimensionais e escalares, apresentando m?ltiplos objetivos para responder ? complexidade do meio urbano. A interven??o deve contemplar e/ou articular as escalas do planejamento regional e urbano com as interven??es pontuais no ambiente fluvial. O diferencial, que qualifica os projetos de interven??o em ambientes fluviais urbanos, est? na valoriza??o da ?gua como elemento est?tico e a sua incorpora??o como elemento da morfologia e da paisagem urbana, a partir da compreens?o da sua bacia hidrogr?fica e da rela??o com escalas maiores e menores.

Made available in DSpace on 2014-12-17T15:48:10Z (GMT). No. of bitstreams: 1 JoseSL_DISSERT.pdf: 4125269 bytes, checksum: 88052259a19538e206fc0b62be64f6cb (MD5) Previous issue date: 2014-02-28 / Universidade Federal do Rio Grande do Norte / Web services are software units that allow access to one or more resources, supporting the deployment of business processes in the Web. They use well-defined interfaces, using web standard protocols, making possible the communication between entities implemented on different platforms. Due to these features, Web services can be integrated as services compositions to form more robust loose coupling applications. Web services are subject to failures, unwanted situations that may compromise the business process partially or completely. Failures can occur both in the design of compositions as in the execution of compositions. As a result, it is essential to create mechanisms to make the implementation of service compositions more robust and to treat failures. Specifically, we propose the support for fault recovery in service compositions described in PEWS language and executed on PEWS-AM, an graph reduction machine. To support recovery failure on PEWS-AM, we extend the PEWS language specification and adapted the rules of translation and reduction of graphs for this machine. These contributions were made both in the model of abstract machine as at the implementation level / Servi?os Web s?o unidades de software que permitem o acesso a um ou mais recursos, dando suporte ? implanta??o de processos de neg?cios na Web. Eles permitem a intera??o atrav?s de interfaces bem-definidas, utilizando-se de protocolos padr?es da Web, tornando poss?vel a comunica??o entre entidades implementadas em diferentes tipos de plataformas. Em virtude dessas caracter?sticas, Servi?os Web podem ser integrados com o objetivo de formar aplica??es mais robustas, com baixo acoplamento entre servi?os, atrav?s de composi??es. Servi?os Web est?o sujeitos a falhas, situa??es indesejadas que podem comprometer o processo de neg?cio parcialmente ou mesmo totalmente. Falhas podem ocorrer tanto na concep??o de composi??es quanto na execu??o das mesmas. Em virtude disso, ? essencial a cria??o de mecanismos que tornem a execu??o das composi??es de servi?os mais robusta e tratem falhas. Especificamente, propomos o suporte ? recupera??o de falhas em composi??es de servi?os descritas na linguagem PEWS e executadas sobre PEWS-AM, uma implementa??o criada a partir da no??o de grafos. Para o suporte ? recupera??o de falhas em PEWS-AM, estendemos as especifica??es PEWS e adaptamos as regras de tradu??o e redu??o de grafos desta m?quina. Estas contribui??es foram realizadas tanto no modelo da m?quina abstrata quanto no n?vel da implementa??o

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-08-16T22:25:59Z No. of bitstreams: 1 GilmarAlexandreGuedesJunior_DISSERT.pdf: 5929995 bytes, checksum: a36bb4fc00b8498bf0fbb8727e65d0ec (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-08-23T21:46:54Z (GMT) No. of bitstreams: 1 GilmarAlexandreGuedesJunior_DISSERT.pdf: 5929995 bytes, checksum: a36bb4fc00b8498bf0fbb8727e65d0ec (MD5) / Made available in DSpace on 2016-08-23T21:46:54Z (GMT). No. of bitstreams: 1 GilmarAlexandreGuedesJunior_DISSERT.pdf: 5929995 bytes, checksum: a36bb4fc00b8498bf0fbb8727e65d0ec (MD5) Previous issue date: 2016-04-29 / A prov?ncia pr?-sal ? composta por grandes acumula??es de ?leo leve, de excelente qualidade e com alto valor comercial, uma realidade que coloca o Brasil em uma posi??o estrat?gica frente ? grande demanda de energia mundial. Nessa prov?ncia encontram-se as maiores descobertas realizadas no mundo nos ?ltimos dez anos; as ?reas de Libra, de Franco e o Campo de Lula, todas com volumes superiores a 8 bilh?es de barris de ?leo recuper?veis. Para desenvolver e otimizar a produ??o desses campos, foi feito um estudo para escolha dos m?todos de recupera??o avan?ada, tendo como principais motiva??es a presen?a do di?xido de carbono (CO2) como contaminante e a decis?o estrat?gica de n?o o descartar, combinada ? alta RGO (raz?o g?s-?leo) do fluido do reservat?rio. O m?todo deveria tirar vantagem dos ?nicos recursos abundantes: a ?gua do mar e o g?s produzido. Dessa maneira, o processo de combinar esses recursos na inje??o alternada de ?gua e g?s (WAG) passou a ser visto como uma boa op??o. Nessa disserta??o, foi desenvolvido um modelo de reservat?rio com caracter?sticas do pr?-sal brasileiro, sendo aplicado o m?todo de recupera??o avan?ada de inje??o alternada de ?gua e g?s. O potencial de produ??o desse reservat?rio foi analisado por meio de par?metros como: fluido que inicia o processo de inje??o, posi??o das completa??es dos po?os injetores, bem como vaz?es de inje??o de ?gua e de g?s e o tempo de ciclo de cada fluido injetado. Os resultados mostraram um bom desempenho do m?todo WAG-CO2 misc?vel, com ganhos de at? 26% no FR com rela??o a recupera??o prim?ria, j? a aplica??o da inje??o de ?gua e de g?s, de maneira individual, n?o foi capaz de superar o patamar de 10% de ganho. O par?metro de maior influ?ncia nos resultados foi o tempo de ciclo, com maiores valores de FR obtidos com a utiliza??o dos menores tempos. / The pre-salt province is composed by large amounts of light oil and with good quality, a reality that puts Brazil in a strategic position facing the great demand for energy worldwide. In this province are the largest discoveries in the world in the last ten years; areas as Libra, Franco and Lula field, everyone containing volumes greater than 8 billion recoverable oil barrels. To develop and optimize the production of these fields, a study was done for choosing the improved oil recovery methods. The main motivations were the presence of carbon dioxide (CO2) as a contaminant and the strategic decision of do not discard it, combined with high GOR (gas-oil ratio) of the reservoir fluid. The method should take advantage of the unique abundant resources: seawater and produced gas. This way, the process of matching these resources in the water alterning gas injection (WAG) became a good option. In this master?s dissertation, it was developed a reservoir model with average characteristics of the Brazilian pre-salt, where was applied the improved oil recovery method of water alternating gas. The production of this reservoir was analyzed by parameters as: the first fluid injected in the injection process, position of the injection wells completion, injection water and gas rate and cycle time. The results showed a good performance of the method, with up to 26% of gains in the recovery factor regarding the primary recovery, since the application of water injection and gas, individually, was not able to overcome 10 % of gain. The most influential parameter found in the results was the cycle time, with higher recovery factor values obtained with the use of shorter times.

?rea de concentra??o: Fisiologia do exerc?cio. / Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2017-10-10T19:50:28Z No. of bitstreams: 3 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) fabricio_paula.pdf: 833499 bytes, checksum: 4864104f710a7129c6089e9dac7beda1 (MD5) fabricio_paula_ficha_catalografica.pdf: 6515 bytes, checksum: ceb6a05cf27cd3c4b848cec8be9fdd04 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2017-11-08T14:36:13Z (GMT) No. of bitstreams: 3 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) fabricio_paula.pdf: 833499 bytes, checksum: 4864104f710a7129c6089e9dac7beda1 (MD5) fabricio_paula_ficha_catalografica.pdf: 6515 bytes, checksum: ceb6a05cf27cd3c4b848cec8be9fdd04 (MD5) / Made available in DSpace on 2017-11-08T14:36:13Z (GMT). No. of bitstreams: 3 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) fabricio_paula.pdf: 833499 bytes, checksum: 4864104f710a7129c6089e9dac7beda1 (MD5) fabricio_paula_ficha_catalografica.pdf: 6515 bytes, checksum: ceb6a05cf27cd3c4b848cec8be9fdd04 (MD5) Previous issue date: 2012 / Atletas de v?rias modalidades desportivas realizam mais de uma sess?o de treinamento por dia. Diversas estrat?gias t?m sido utilizadas com o intuito de acelerar a recupera??o p?s-exerc?cio. Embora a imers?o em ?gua seja uma estrat?gia comum entre os atletas, a sua efic?cia na acelera??o da recupera??o ainda n?o est? estabelecida, e os efeitos da temperatura da ?gua na imers?o sobre o desempenho n?o s?o claros. Sendo assim, este estudo avaliou os efeitos da recupera??o passiva por imers?o em ?gua, em diferentes temperaturas, sobre o desempenho ap?s uma sess?o de exerc?cio. Nove homens, jovens, fisicamente ativos, participaram de quatro sess?es experimentais randomizadas compostas por exerc?cio exc?ntrico (3 x 10 repeti??es a 100% de uma repeti??o m?xima) e 90 minutos de corrida em esteira rolante a 70% do pico de consumo de oxig?nio. Em seguida, os volunt?rios recuperaram durante 45 minutos, distribu?dos em 15 minutos de imers?o em ?gua a 15, 28 ou 38?C sentados e 30 minutos deitados em repouso a temperatura ambiente (20 ? 2? C). Na sess?o controle (CON), durante a recupera??o, os volunt?rios permaneceram sentados durante 15 minutos ? temperatura ambiente. Quatro horas ap?s o final do exerc?cio experimental, os volunt?rios foram submetidos ? corrida de intensidade autorregulada m?xima de 5 km seguido do teste de Wingate para avaliar o desempenho f?sico. A temperatura retal (Tret), a frequ?ncia card?aca (FC) e sua variabilidade (VFC) foram medidas ao longo de toda a sess?o. O consumo excessivo de oxig?nio p?s-exerc?cio (EPOC) foi medido durante a recupera??o. Os marcadores do dano muscular, creatina quinase (CK) e aspartato amino transferase (AST) e a contagem de leuc?citos totais foram medidas antes e ap?s o exerc?cio, ap?s imers?o, antes e ap?s o desempenho, e 24 horas ap?s o exerc?cio experimental. A velocidade m?dia na corrida de intensidade autorregulada m?xima de 5 km e a pot?ncia pico relativano teste de Wingate n?o foram diferentes entre as condi??es experimentais. A imers?o em ?gua a 15?C reduziu a Tret, a FC e os ?ndices de VFC a valores de repouso, ap?s a recupera??o. O EPOC foi maior na imers?o em ?gua a 15?C e a 28?C. Durante a corrida de intensidade autorregulada de 5 km e do teste Wingate, a Tret e a FC n?o foram diferentes entre as condi??es experimentais. A sess?o de exerc?cio experimental induziu dano muscular e leucocitose. Entretanto, n?o houve diferen?a nos n?veis s?ricos de CK, AST e no n?mero de leuc?citos totais entre as condi??es experimentais. A recupera??o por imers?o em ?gua,a diferentes temperaturas, n?o foi efetiva em modificar o desempenho f?sico 4 horas ap?s uma sess?o de exerc?cio prolongado. / Disserta??o (Mestrado) ? Programa Multic?ntrico de P?s-gradua??o em Ci?ncias Fisiol?gicas, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2012. / Athletes of several sport modalities regularly train more than once a day. Several strategies have been used in order to accelerate post-exercise recovery. Although water immersion is a common strategy among athletes, it effectiveness in accelerate the recovery is not yet established, and the effects of temperature water immersion on performance are not clear. Thus, this study evaluated the effects of passive recovery water immersion at different temperatures on performance following an exercise session.Nine physically active men (24 ? 6 years old, 72 ? 13 kg, 177 ? 7 cm, peak oxygen consumption (VO2peak) of 55 ? 4 mL?kg- 1?min-1), participated of four randomized experimental sessions. Each session consisted of eccentric knee flexion (3 x 10 repetitions of 100% from one maximum repetition) and 90 minutes of treadmill running at 70% of VO2peak, followed by 15 minutes of passive recovery by water immersion at 15?C, 28?C or 38?C and 30 minutes resting in supine position at room temperature (20 ? 2?C). In the control session, volunteers remained seated for 15 minutes at room temperature after exercise. After four hours of resting, in order to evaluate recovery strategies, the volunteers underwent a 5 km of maximal self-paced treadmill running followed by the Wingate test. Prior to experimental sessions, rested volunteers completed 5 km of maximal self-paced running and the Wingate test, which were used as reference performance values. Rectal temperature (Tret), heart rate (HR) and heart rate variability indexes (HRV indexes) were measured through the entire session. Excess post-exercise oxygen consumption (EPOC) was measured during recovery period. The markers of muscle damage, creatine kinase (CK) and aspartate aminotransferase (AST) and total leukocyte count were measured before and after exercise, after immersion, before and after performance tests, and 24 hours after the experimental exercise. Average speed during 5 km of maximal self-paced treadmill running and relative peak power during Wingate test were not different between experimental conditions. Water immersion at 15?C reduced Tret, HR and HRV indexes to baseline values after recovery. EPOC was higher in water immersion at 15?C and 28?C. During 5 km of maximal self-paced treadmill running and Wingate test, Tret and HR were not different between experimental conditions. The experimental exercise session induced muscle damage and leukocytosis. However, there was no difference in serum CK, AST and total leukocyte count between experimental conditions.The recovery by water immersion at different temperatures was not effective in modify the physical performance 4 hours after a session of prolonged exercise.

Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2017-12-18T18:25:58Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) mariana_generoso_ferreira.pdf: 1487910 bytes, checksum: 5d8038ca69034b764ba796a3a18d0907 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2018-01-03T17:13:11Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) mariana_generoso_ferreira.pdf: 1487910 bytes, checksum: 5d8038ca69034b764ba796a3a18d0907 (MD5) / Made available in DSpace on 2018-01-03T17:13:11Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) mariana_generoso_ferreira.pdf: 1487910 bytes, checksum: 5d8038ca69034b764ba796a3a18d0907 (MD5) Previous issue date: 2017 / O agricultor deve adequar-se ?s exig?ncias da nova legisla??o ambiental brasileira, quanto ? recupera??o de ?reas de preserva??o permanente e reserva legal. Um dos problemas que o produtor pode enfrentar ? a recupera??o de ?reas degradadas, que podem conter, entre outros contaminantes, res?duos de herbicidas. O 2,4-D e picloram s?o herbicidas hormonais mimetizadores de auxina. Entre os grupos vegetais, as esp?cies das matas ciliares t?m sido pouco relatadas quanto aos efeitos de res?duos desses herbicidas no ambiente. As an?lises micromorfol?gicas e micromorfom?tricas s?o ferramentas importantes no aux?lio do diagn?stico precoce da inj?ria, visto que modifica??es vis?veis podem aparecer em fase tardia da intoxica??o. Objetivou-se com este trabalho avaliar o desenvolvimento inicial de dez esp?cies arb?reas em substrato com res?duos da mistura de herbicidas 2,4-D+picloram e verificar os efeitos nas modifica??es anat?micas foliares de Mabea fistulifera e Zeyheria tuberculosa. Em delineamento em blocos ao acaso com tr?s repeti??es, foram distribu?dos 40 tratamentos em esquema fatorial 4x10. O primeiro fator foi composto por quatro doses da mistura comercial de 2,4-D+picloram correspondentes a 0,00; 0,166; 0,333 e 0,666 g ha-1 (Tordon?, contendo 240 g de 2,4-D e 64 g de picloram por litro). O segundo fator foi composto por dez esp?cies arb?reas: Machaerium opacum Vogel, Machaerium nyctitans (Vell.) Benth., Cassia ferruginea (Schrad.) Schrad. ex DC., Senna macranthera (DC. ex. Collad.) H.S. Irwin e Barnaby, Anadenanthera colubrina (Vell.), Brenan, Senegalia polyphylla (DC.) Britton e Rose, Piptadenia gonoacantha (Mart.) J.F. Macbr., Dalbergia villosa (Benth.) Benth., Mabea fistulifera Mart. e Zeyheria tuberculosa (Vell) Bureau ex Verl. Avalia??es morfol?gicas e anat?micas em plantas jovens foram realizadas conforme a metodologia padr?o. Para as vari?veis morfol?gicas das dez esp?cies arb?reas foram avaliados: intoxica??o, sobreviv?ncia, altura das pl?ntulas, n?mero de folhas, ?rea foliar, massa seca da parte a?rea e da raiz, di?metro do caule, o volume da raiz, o ?ndice de velocidade de emerg?ncia e a emerg?ncia. Por meio de avalia??es micromorfom?tricas foram medidas, na sec??o transversal das folhas de Mabea fistulifera e Zeyheria tuberculosa, a espessura dos tecidos, a epiderme adaxial e abaxial, par?nquima pali??dico e lacunoso, al?m da l?mina total. Para a ?rea foliar foram realizadas fotografias das folhas e mensuradas com aux?lio do software Image K. As esp?cies arb?reas sobreviveram ? aplica??o do produto, com varia??o na sensibilidade. Os res?duos da mistura dos herbicidas prejudicaram a maioria das esp?cies testadas em rela??o ?s avalia??es do desenvolvimento inicial. M. fistulifera, P. gonoacantha e Z. tuberculosa apresentaram maior toler?ncia ? mistura de herbicidas. Em rela??o ? anatomia e ?rea foliar, de maneira geral, a esp?cie Z. tuberculosa foi afetada negativamente pelos herbicidas. M. fistulifera se mostrou mais tolerante ? presen?a dos contaminantes. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Ci?ncia Florestal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2017. / The farmer must adapt to the requirements of the new brazilian environmental legislation, regarding the recovery of permanent preservation areas and legal reserve. One of the problems that the producer may face is the recovery of degraded areas, which may contain, among other contaminants, herbicide residues. 2,4-D and picloram are auxin mimicking hormonal herbicides. Among the plant groups, the species of the riparian forests have been little reported as to the effects of residues of these herbicides on the environment. Micromorphological and micromorphometric analyzes are important tools to aid in the early diagnosis of injury, since visible changes may appear in the later stages of intoxication. The objective of this work was to evaluate the initial development of ten substrate tree species with residues from of the 2,4-D + picloram herbicide mixture and to verify the effects on the anatomical modifications of Mabea fistulifera and Zeyheria tuberculosa. In a randomized block design with three replicates, 40 treatments were distributed in a 4x10 factorial scheme. The first factor was composed of four doses of the commercial mixture of 2,4-D + picloram corresponding to 0,00; 0,166; 0,336 and 0,666 g ha-1 (Tordon?, containing 240 g of 2,4-D and 64 g of picloram per liter). The second factor was composed of ten tree species: Machaerium opacum Vogel, Machaerium nyctitans (Vell.) Benth., Cassia ferruginea (Schrad.) Schrad. ex DC., Senna macranthera (DC. ex. Collad.) H.S. Irwin e Barnaby, Anadenanthera colubrina (Vell.), Brenan, Senegalia polyphylla (DC.) Britton e Rose, Piptadenia gonoacantha (Mart.) J.F. Macbr., Dalbergia villosa (Benth.) Benth., Mabea fistulifera Mart. and Zeyheria tuberculosa (Vell) Bureau ex Verl. Morphological and anatomical evaluations in young plants were performed according to the standard methodology. For the morphological variables of the ten tree species were evaluated: intoxication, survival, seedling height, number of leaves, leaf area, dry mass of shoot and root, stem diameter, root volume, emergency speed index and emergency. Through micromorphometric evaluations, tissue thickness, adaxial and abaxial epidermis, pali?adic and lacunacetic parenchyma were measured, in the cross section of the leaves of Mabea fistulifera and Zeyheria tuberculosa, in addition to the total lamina. For leaf area, leaf photographs were taken and measured using Image K software. Tree species survived the application of the product, with variation in sensitivity. Residues of the herbicide mixture adversely affected most of the tested species in relation to initial developmental assessments. M. fistulifera, P. gonoacantha and Z. tuberculosa presented greater tolerance to the herbicide mixture. In relation to the anatomy and leaf area, in general, the species Z. tuberculosa was negatively affected by the herbicides. M. fistulifera was more tolerant to the presence of contaminants.

Made available in DSpace on 2014-12-17T14:08:48Z (GMT). No. of bitstreams: 1 DaviMSBL_DISSERT.pdf: 4742258 bytes, checksum: 95c358d84716a6d20ba53990ae56c3f3 (MD5) Previous issue date: 2011-09-02 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The world has many types of oil that have a range of values of density and viscosity, these are characteristics to identify whether an oil is light, heavy or even ultraheavy. The occurrence of heavy oil has increased significantly and pointing to a need for greater investment in the exploitation of deposits and therefore new methods to recover that oil. There are economic forecasts that by 2025, the heavy oil will be the main source of fossil energy in the world. One such method is the use of solvent vaporized VAPEX which is known as a recovery method which consists of two horizontal wells parallel to each other, with a gun and another producer, which uses as an injection solvent that is vaporized in order to reduce the viscosity of oil or bitumen, facilitating the flow to the producing well. This method was proposed by Dr. Roger Butler, in 1991. The importance of this study is to analyze how the influence some operational reservoir and parameters are important in the process VAPEX, such as accumulation of oil produced in the recovery factor in flow injection and production rate. Parameters such as flow injection, spacing between wells, type of solvent to be injected, vertical permeability and oil viscosity were addressed in this study. The results showed that the oil viscosity is the parameter that showed statistically significant influence, then the choice of Heptane solvent to be injected showed a greater recovery of oil compared to other solvents chosen, considering the spacing between the wells was shown that for a greater distance between the wells to produce more oil / Existem no mundo diversos tipos de ?leo que apresentam uma diversidade de valores de densidade e viscosidade, essas s?o caracter?sticas para identificar se um ?leo ? leve, pesado ou at? mesmo ultrapesado. A ocorr?ncia de ?leo pesado vem aumentando sensivelmente e apontando uma necessidade de maiores investimentos na explora??o de jazidas e consequentemente em novos m?todos de recupera??o desse ?leo. Existem previs?es econ?micas de que, para o ano 2025, o ?leo pesado seja a principal fonte de energia f?ssil no mundo. Um desses novos m?todos seria a utiliza??o de solvente vaporizado conhecido como VAPEX que ? um m?todo de recupera??o que consiste em dois po?os horizontais paralelos entre si, sendo um injetor e outro produtor, que utiliza como inje??o solvente vaporizado que tem com o prop?sito reduzir a viscosidade do ?leo ou betume, facilitando o escoamento at? o po?o produtor. Esse m?todo foi proposto por Dr. Roger Butler, em 1991. A import?ncia do presente estudo ? analisar como influenciam alguns par?metros operacionais e de reservat?rio, importantes no processo VAPEX, tais como o acumulo de ?leo produzido, no fator de recupera??o, na vaz?o de inje??o e na taxa de produ??o. Par?metros como vaz?o de inje??o, espa?amento entre os po?os, tipo do solvente a ser injetado, permeabilidade vertical e a viscosidade do ?leo foram abordados neste estudo. Os resultados mostraram que a viscosidade do ?leo foi o par?metro que mais mostrou influ?ncia significativa estatisticamente, em seguida a escolha do Heptano como solvente a ser injetado mostrou uma maior recupera??o de ?leo em rela??o aos demais solventes escolhidos. Considerando o espa?amento entre os po?os, foi mostrado que para uma maior dist?ncia entre os po?os h? uma maior produ??o de ?leo

Made available in DSpace on 2014-12-17T14:08:56Z (GMT). No. of bitstreams: 1 JofranyaWAP_DISSERT.pdf: 2973696 bytes, checksum: 2de846649570e278d51d0d67ec195c5e (MD5) Previous issue date: 2014-03-06 / After the decline of production from natural energy of the reservoir, the methods of enhanced oil recovery, which methods result from the application of special processes such as chemical injection, miscible gases, thermal and others can be applied. The advanced recovery method with alternating - CO2 injection WAG uses the injection of water and gas, normally miscible that will come in contact with the stock oil. In Brazil with the discovery of pre-salt layer that gas gained prominence. The amount of CO2 present in the oil produced in the pre-salt layer, as well as some reservoirs is one of the challenges to be overcome in relation to sustainable production once this gas needs to be processed in some way. Many targets for CO2 are proposed by researchers to describe some alternatives to the use of CO2 gas produced such as enhanced recovery, storage depleted fields, salt caverns storage and marketing of CO2 even in plants. The largest oil discoveries in Brazil have recently been made by Petrobras in the pre -salt layer located between the states of Santa Catarina and Esp?rito Santo, where he met large volumes of light oil with a density of approximately 28 ? API, low acidity and low sulfur content. This oil that has a large amount of dissolved CO2 and thus a pioneering solution for the fate of this gas comes with an advanced recovery. The objective of this research is to analyze which parameters had the greatest influence on the enhanced recovery process. The simulations were performed using the "GEM" module of the Computer Modelling Group, with the aim of studying the advanced recovery method in question. For this work, semi - synthetic models were used with reservoir and fluid data that can be extrapolated to practical situations in the Brazilian Northeast. The results showed the influence of the alternating injection of water and gas on the recovery factor and flow rate of oil production process, when compared to primary recovery and continuous water injection or continuous gas injection / O m?todo de recupera??o avan?ada com inje??o alternada WAG-CO2 utiliza da inje??o de ?gua e g?s, g?s esse normalmente misc?vel que vai entrar em contato com o banco de ?leo. No Brasil com a descoberta da camada pr?-sal esse g?s ganhou destaque. A quantidade de CO2 presente no ?leo produzido na camada pr?-sal, assim como acontece em alguns reservat?rios ? um dos desafios a serem vencidos com rela??o ? produ??o sustent?vel uma vez que esse g?s precisa ser processado de alguma maneira. Muitos os destinos para o CO2 s?o propostos por estudiosos, que descrevem algumas alternativas para uso do g?s CO2 produzido, tais como, recupera??o avan?ada, armazenamento em campos depletados, armazenamento em cavernas de sal e ainda comercializa??o do CO2 em plantas. As maiores descobertas de petr?leo, no Brasil, foram feitas recentemente pela Petrobras na camada pr?-sal localizada entre os estados de Santa Catarina e Esp?rito Santo, onde se encontrou grandes volumes de ?leo leve com uma densidade em torno de 28? API, baixa acidez e baixo teor de enxofre. ?leo esse que possui uma grande quantidade de CO2 dissolvido e assim uma solu??o pioneira para o destino desse g?s vem sendo a recupera??o avan?ada. O objetivo dessa pesquisa ? analisar quais os par?metros que tiveram maior influ?ncia no processo de recupera??o avan?ada. As simula??es foram realizadas utilizando o m?dulo GEM da Computer Modelling Group, com o objetivo de realizar estudos do m?todo de recupera??o avan?ada em quest?o. Para a realiza??o deste trabalho, modelos semi-sint?ticos foram utilizados com dados de reservat?rio e fluidos que podem ser extrapolados para situa??es pr?ticas do Nordeste brasileiro. Os resultados mostraram a influ?ncia do processo de inje??o alternada de ?gua e g?s sobre o fator de recupera??o e vaz?o de produ??o de ?leo, quando comparados ? recupera??o prim?ria e inje??o cont?nua de ?gua ou inje??o cont?nua de g?s

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-05-30T23:24:06Z No. of bitstreams: 1 JoselisseSoaresDeCarvalhoSantos_TESE.pdf: 16053934 bytes, checksum: cf451c4ddd4d01f3d1adc928b9fb2590 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-06-02T19:17:42Z (GMT) No. of bitstreams: 1 JoselisseSoaresDeCarvalhoSantos_TESE.pdf: 16053934 bytes, checksum: cf451c4ddd4d01f3d1adc928b9fb2590 (MD5) / Made available in DSpace on 2016-06-02T19:17:42Z (GMT). No. of bitstreams: 1 JoselisseSoaresDeCarvalhoSantos_TESE.pdf: 16053934 bytes, checksum: cf451c4ddd4d01f3d1adc928b9fb2590 (MD5) Previous issue date: 2015-10-19 / A recupera??o avan?ada de petr?leo tem sido foco de in?meras pesquisas buscando o melhoramento da recupera??o do ?leo in place dos reservat?rios, isto porque os reservat?rios maduros e/ou aqueles que possuem ?leos muito viscosos precisam de meios que auxiliem no escoamento e conseq?ente produ??o. Diante disto, foram estudadas as propriedades f?sico-qu?micas, entre estas propriedades verificaram-se o comportamento reol?gico e a tens?o superficial dos pol?meros, variando a concentra??o e a temperatura. Ap?s a obten??o da concentra??o de overlep, foi analisada a tens?o interfacial da solu??o de petr?leo/poliacrilamidas e, estas em presen?a de tensoativo e EDTA. Tamb?m, observou-se a permeabilidade destas solu??es, modificando a concentra??o. Com isso, o objetivo desta caracteriza??o foi observar a viabilidade destas solu??es nos processos de deslocamento de petr?leo em meio poroso. Os resultados obtidos mostraram que o aumento da ionicidade das poliacrilamidas promove um aumento da viscosidade no meio. No caso da temperatura seu aumento reduz a viscosidade para as poliacrilamidas de baixa ionicidade, a aumenta a viscosidade das poliacrilamidadas de alta ionicidade. Quanto a permeabilidade, verificou-se que os pol?meros ani?nicos apresentaram press?es mais elevadas em compara??o aos pol?meros de baixa ionicidade, e acredita-se que esse comportamento esteja relacionado ?s viscosidades destes pol?meros, que s?o mais altas. Na tens?o superficial observou-se a regi?o da concentra??o de overlep de cada pol?mero, consequentemente foi observado que as cargas i?nicas n?o influenciaram consideravelmente na redu??o das tens?es interfaciais entre o ?leo e as poliacrilamidas e constataram-se redu??es das IFT de todas as solu??es estudadas quando comparada ao caso ?gua/petr?leo. Tal resultado ? um bom ind?cio para seu uso no processo de recupera??o avan?ada de petr?leo. Finalmente, ao injetar as solu??es estudadas no meio poroso, verificou-se que as solu??es de pol?meros com maior ionicidade em presen?a de tensoativo e EDTA promoveram uma sinergia na recupera??o avan?ada de petr?leo, quando comparadas ?s solu??es contendo apenas pol?meros. / Enhanced oil recovery has been the focus of countless research projects aiming for the improvement of the in place oil recovery from the reservoirs, especially because mature fields and/or fields containing heavy oil require further assistance to ensure oil flow and consequent production. Having that in mind, physical and chemical properties such as the rheological behaviour and the superficial tension of polymers, for different concentrations and temperatures, were studied. After obtaining the polymers critical aggregation concentration (c.a.c.), the interfacial tension (IFT) between the polyacrylamide/oil solutions was evaluated, as well as for the solutions containing surfactant (SB) and EDTA. The permeability and the application of those solutions in enhanced oil recovery of those solutions was also observed using the Botucatu arenite. The results obtained demonstrated that the increase in the polymers ionicity promotes an increase in the solution viscosity. An increase in temperature reduced the viscosity for the low ionicity polyacrylamides, but caused an increase in the viscosity for some of the high ionicity ones. Concerning permeability, the anionic polymers presented higher injection pressure values when compared to the lower ionicity ones, and that behaviour is believed to be related to the viscosities of those polymers, which are higher. Regarding superficial tension, the c.a.c. region for each polymer was observed, and the conclusion was that the ionic charges had little or no influence in the reduction of interfacial tensions between the oil and the polymers, while the decrease in IFT for all solutions was observed when compared to the system formed by water and oil. The aforementioned results are a good indicator that the polymers studied are suitable for the enhanced oil recovery process. By injecting the solutions into the porous media, it was observed that the solutions formed by SB associated to EDTA improved the flow inside the porous media. The results indicated that the enhanced oil recovery using the polymer/ surfactant/ EDTA solutions reached a recovery factor of 18 % of the original oil. In addition, it could be observed that polymers presenting the higher ionicity, associated to surfactant and EDTA, promoted a synergy in the enhanced oil recovery when compared to the solutions containing only polymers.

Made available in DSpace on 2014-12-17T14:54:57Z (GMT). No. of bitstreams: 1 RaquelEPE_TESE_1-80.pdf: 4159949 bytes, checksum: 681cbd9cd3971c6a6645b13d18e3ce70 (MD5) Previous issue date: 2009-03-20 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / With the rapid growth of databases of various types (text, multimedia, etc..), There exist a need to propose methods for ordering, access and retrieve data in a simple and fast way. The images databases, in addition to these needs, require a representation of the images so that the semantic content characteristics are considered. Accordingly, several proposals such as the textual annotations based retrieval has been made. In the annotations approach, the recovery is based on the comparison between the textual description that a user can make of images and descriptions of the images stored in database. Among its drawbacks, it is noted that the textual description is very dependent on the observer, in addition to the computational effort required to describe all the images in database. Another approach is the content based image retrieval - CBIR, where each image is represented by low-level features such as: color, shape, texture, etc. In this sense, the results in the area of CBIR has been very promising. However, the representation of the images semantic by low-level features is an open problem. New algorithms for the extraction of features as well as new methods of indexing have been proposed in the literature. However, these algorithms become increasingly complex. So, doing an analysis, it is natural to ask whether there is a relationship between semantics and low-level features extracted in an image? and if there is a relationship, which descriptors better represent the semantic? which leads us to a new question: how to use descriptors to represent the content of the images?. The work presented in this thesis, proposes a method to analyze the relationship between low-level descriptors and semantics in an attempt to answer the questions before. Still, it was observed that there are three possibilities of indexing images: Using composed characteristic vectors, using parallel and independent index structures (for each descriptor or set of them) and using characteristic vectors sorted in sequential order. Thus, the first two forms have been widely studied and applied in literature, but there were no records of the third way has even been explored. So this thesis also proposes to index using a sequential structure of descriptors and also the order of these descriptors should be based on the relationship that exists between each descriptor and semantics of the users. Finally, the proposed index in this thesis revealed better than the traditional approachs and yet, was showed experimentally that the order in this sequence is important and there is a direct relationship between this order and the relationship of low-level descriptors with the semantics of the users / Na recupera??o de imagens basada no conte?do - CBIR, cada imagem ? representada pelas suas caracter?sticas de baixo n?vel como s?o: cor, forma, textura, etc. A representa??o da sem?ntica das imagens por caracter?sticas de baixo n?vel ? um problema em aberto. Novos algoritmos para a extra??o de caracter?sticas assim como novos m?todos de indexa??o tem sido propostos na literatura. Por?m, estes algoritmos tornam-se cada vez mais complexos surgindo assim uma serie de questionamentos, tais como: existe uma rela??o entre a sem?ntica e as caracter?sticas de baixo n?vel extra?das em uma imagem? quais descritores representam melhor esta sem?ntica? responder estes questionamentos nos leva a um novo: quantos descritores usar para a representa??o do conte?do das imagens?. Nesta tese propomos um m?todo para analisar a rela??o que existe entre descritores de baixo n?vel e a sem?ntica, na tentativa de responder os questionamentos formulados. Ainda, propoe-se uma indexa??o dos vetores de caracter?sticas ordenados de forma seq?encial, a qual foi comparada com as formas de indexa??o tradicionais. Assim, para indexar as imagens usando uma estrutura seq?encial dos descritores, foi estabelecido uma ordem segundo a rela??o que existe entre cada descritor e a sem?ntica das imagens. Finalmente, a proposta de indexa??o realizada nesta tese mostrou-se superior ?s propostas tradicionais e ainda, mostrou-se experimentalmente que a ordem nesta seq??ncia ? relevante e existe uma rela??o direta entre esta ordem e a rela??o dos descritores de baixo n?vel com a sem?ntica das imagens. Como estrutura de indexa??o foi usada uma rede TS-SL-SOM e ? proposta um novo algoritmo de treinamento nesta rede de forma que a efici?ncia alcan?ada seja otimizada. Finalmente, para poder estabelecer o grau de sem?ntica extra?da por cada descritor s?o propostos algoritmos e ?ndices que quantificam esta sem?ntica de tal forma que os descritores sejam compar?veis e se consiga escolher quais descritores usar segundo o problema dado