Submitted by Lara Oliveira (lara@ufersa.edu.br) on 2018-06-11T17:51:51Z No. of bitstreams: 1 AlexandreMA_DISSERT.pdf: 21200920 bytes, checksum: 988dc3f3c5290a8f67225c05b46914a0 (MD5) / Approved for entry into archive by Vanessa Christiane (referencia@ufersa.edu.br) on 2018-06-18T16:52:15Z (GMT) No. of bitstreams: 1 AlexandreMA_DISSERT.pdf: 21200920 bytes, checksum: 988dc3f3c5290a8f67225c05b46914a0 (MD5) / Approved for entry into archive by Vanessa Christiane (referencia@ufersa.edu.br) on 2018-06-18T16:53:10Z (GMT) No. of bitstreams: 1 AlexandreMA_DISSERT.pdf: 21200920 bytes, checksum: 988dc3f3c5290a8f67225c05b46914a0 (MD5) / Made available in DSpace on 2018-06-18T16:53:22Z (GMT). No. of bitstreams: 1 AlexandreMA_DISSERT.pdf: 21200920 bytes, checksum: 988dc3f3c5290a8f67225c05b46914a0 (MD5) Previous issue date: 2018-02-28 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Demand in wireless networks has increased considerably in recent years. Consequently, the study of system components has also increased. Within this context, antennas are fundamental elements in the physical layer in radiofrequency communications, and their study has become a research area with great advances. The need in certain systems for smaller antennas and more adaptability in the space makes the microstrip antennas in potential substitutes of the traditional antennas. This work aims to find prototypes of microfite antennas that have physical and electrical characteristics, such as gain and polarization, superior to the commercial antennas of a FPV communication system (First Person View) operating at 5.8 GHz. The methodology used in this research consists of a theoretical survey about circular polarization antennas, design, simulate and construct these antennas using different substrates in order to verify their performance and to ship them in an FPV system. The results obtained through the simulation are compared with the experimental results in order to attest to the model in question based on the literature used in this work. Preliminarily, the simulated and measured results show that the Triangular Patch Antennas have all the desirable characteristics for operation in the FPV system, being possible to board them for the obtaining of images and analysis of the performance of the system / A demanda em redes de comunicação sem fio tem aumentado consideravelmente nos últimos anos. Consequentemente, o estudo dos componentes dos sistemas também aumentou. Dentro desse contexto, as antenas são elementos fundamentais na camada física em comunicações via radiofrequência, e o seu estudo tornou-se uma área de pesquisa com grandes avanços. A necessidade em determinados sistemas por antenas de menor porte e mais adaptabilidade no espaço tornam as antenas de microfita em potenciais substitutos das antenas tradicionais. Diante disso, esse trabalho objetiva encontrar protótipos de antenas de microfita que possuam características físicas e elétricas, como ganho e polarização, superiores às antenas comerciais de um sistema de comunicação em FPV (First Person View), operando em 5.8 GHz. A metodologia utilizada nessa pesquisa consiste em um levantamento teórico acerca das antenas de polarização circular, projetar, simular e construir estas antenas utilizando diferentes substratos a fim de verificar seu desempenho e embarcá-las em um sistema FPV. Os resultados obtidos através da simulação são comparados com os resultados experimentais a fim de atestar o modelo em questão com base na literatura empregada neste trabalho. Preliminarmente, os resultados simulados e medidos mostram que as Antenas Patch Triangular possuem todas as características desejáveis para operação no sistema FPV, sendo possível embarcá-las para a obtenção de imagens e análise de desempenho do sistema com as mesmas / 2018-06-11

Submitted by AMANDA CARVALHO DE OLIVEIRA null (tantofazisso@gmail.com) on 2016-11-09T14:57:35Z No. of bitstreams: 1 A Proposta Circular - Amanda Oliveira.pdf: 3010217 bytes, checksum: 9c05a12c8f6828ec76063d8fbb03c183 (MD5) / Approved for entry into archive by Felipe Augusto Arakaki (arakaki@reitoria.unesp.br) on 2016-11-10T18:26:51Z (GMT) No. of bitstreams: 1 oliveira_ac_me_ia.pdf: 3010217 bytes, checksum: 9c05a12c8f6828ec76063d8fbb03c183 (MD5) / Made available in DSpace on 2016-11-10T18:26:51Z (GMT). No. of bitstreams: 1 oliveira_ac_me_ia.pdf: 3010217 bytes, checksum: 9c05a12c8f6828ec76063d8fbb03c183 (MD5) Previous issue date: 2016-08-17 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Este trabalho surgiu pela necessidade de conciliar os desejos e necessidades da aluna rebelde, que ainda vive em mim, com as experiências e teóricos, que a atual professora que sou, enxerga. Neste intuito apresento algumas de minhas experiências como educanda e educadora em texto literário analógico e também em relato de história de vida para, a partir daí, apresentar uma proposta de aula de artes baseada na Pedagogia do Oprimido de Paulo Freire, na Abordagem Triangular de Ana Mae Barbosa e na Escola da Ponte com José Pacheco. / This work is done by the need to conciliate the wishes and needs of a rebel student who still lives inside me with the experiences and theories that the teacher of these days sees. Following this propourse, I introduce some of my experiences as a studant and as an educator in a analogic and literaly text and also in a story of life to introduce an art lessons proposal based in Paulo Freire's "Pedagogia do Oprimido", Ana Mes Barbosa's "Abordagem Triangular" and Jose Pacheco's "Escola da Ponte". / CAPES: 106.565-3

Submitted by Elesbão Santiago Neto (neto10uepb@cche.uepb.edu.br) on 2018-04-10T16:49:50Z No. of bitstreams: 1 PDF - Thamirys Ferreira Cavalcante.pdf: 27380863 bytes, checksum: 1b5dbd703d9d777364e7f87419553eaa (MD5) / Made available in DSpace on 2018-04-10T16:49:50Z (GMT). No. of bitstreams: 1 PDF - Thamirys Ferreira Cavalcante.pdf: 27380863 bytes, checksum: 1b5dbd703d9d777364e7f87419553eaa (MD5) Previous issue date: 2015-06-30 / CAPES / Beginning from the dynamics of interests that guide the relationship between Brazil and Japan, the aim of this work is to study the Japanese-Brazilian relations, emphasizing the cooperation maintained between the two countries. To carry out the work, it employed the literature on the subject and it was supported by studies carried out by agencies of both governments and by research institutions such as ABC, the MOFA and the IBGE. The text builds itself in an effort to show how cooperation is capable of acting in the design of favorable identifications among countries and draw closer relations through the perception of common interests. Historically, Japanese-Brazilian relations developed in bases defined as complementary interests. These interests associated with changes in the international scenario draw Japan and Brazil closer to each other over the years, turning the mutual perception between them and outlining the contours of interaction structures. Apart from a relationship based on human ties, from the 1950s, new variables were added to these structures, such as trade and technical cooperation. Despite the intermittent character, the Japanese-Brazilian relationship has evolved and surpassed the bilateral sphere, expanding the results of this cooperation to other countries through a fruitful triangular partnership. / Partindo da dinâmica dos interesses que orientam as relações entre Brasil e Japão, o objetivo do presente trabalho é estudar as relações nipo-brasileiras, dando ênfase à cooperação mantida entre os dois países. Para a realização do trabalho, lançou-se mão da pesquisa bibliográfica sobre o tema e do suporte de estudos feitos por órgãos dos dois governos e instituições de pesquisa como a ABC, o MOFA e o IBGE. O texto constrói-se no sentido de demonstrar como a cooperação é capaz de atuar na concepção de identificações favoráveis entre os países e de estreitar relações através da percepção de interesses comuns. Historicamente, as relações nipo-brasileiras têm se desenvolvido em bases definidas como interesses complementares. Estes interesses associados a mudanças na conjuntura internacional fundamentaram a aproximação entre os dois países ao longo dos anos, transformando a percepção mútua entre eles e delineando os contornos das estruturas de interação. Para além de uma relação baseada nos laços humanos, a partir da década de 1950, novas variáveis foram acrescentadas a essas estruturas, como o comércio e a cooperação técnica. Apesar do caráter intermitente, o relacionamento nipo-brasileiro tem se desenvolvido e ultrapassado a esfera bilateral, expandindo os frutos dessa cooperação para outros países através da uma profícua parceria triangular.

O presente trabalho parte das questões da pesquisadora diante da clínica do autismo, em especial ao dispositivo clínico de grupos com crianças autistas, psicóticas e neuróticas, tendo a criação como ferramenta de intervenção. A experiência com esse tipo de clínica levou a autora a buscar um entendimento da criação como ferramenta clínica do tratamento do autismo em grupos heterogêneos, sendo esse o objetivo geral da pesquisa em questão. Ainda, como objetivos específicos, busca-se: contribuir para a construção de operadores teóricosclínicos para a clínica do autismo; contribuir para pensar a clínica de grupos sob um olhar lacaniano a partir de um diálogo com Kaës. Para tal, foi realizada uma articulação entre o que os psicanalistas lacanianos formulam acerca do autismo e o que Kaës propõe acerca dos grupos, valendo-nos especialmente de suas formulações acerca das alianças inconscientes, nelas introduzindo considerações lacanianas sobre a identificação da própria marca subjetiva. A sustentação metodológica dessa articulação se dá a partir da teorização de Luis Claudio Figueiredo do atravessamento de paradigmas. A partir da leitura feita no desenvolvimento do trabalho, concluímos que a criação tem efeitos numa dupla vertente: enquanto ferramenta da qual o tratamento junto a essas crianças pode se valer, abrangendo aí brincadeira, os jogos, a contação de histórias, a arte e demais formas de expressão da cultura e da linguagem (ou seja, uma forma de articulação do sujeito com o Outro). A segunda vertente seria a da criação como aquilo que o sujeito consegue produzir. No caso do autista, o que propomos é que a criação enquanto produção se dá por meio de uma ordenação do mundo interno, da construção de uma imagem corporal, de um modo de estar no laço e de um dizer que possa ser singular, ou seja, que ultrapasse o anonimato por meio de sua articulação na trama da cultura, da linguagem, do Outro justamente a partir do que há de mais próprio nele: sua singularidade. Considerando o fechamento desses sujeitos ao outro, propomos como estratégia a chamada intervenção triangular. Novamente, nessa clínica específica pensamos que há uma dupla vertente: no grupo e pela criação. No grupo, esta se dá pela mediatização do analista, que direciona uma criança à outra, que empresta a voz àquilo que não está conseguindo ser dito. Ainda, as próprias crianças podem, por vezes, fazer esse papel. Na criação, a intervenção triangular se dá quando a criação pode operar como um terceiro, quando pode ter efeito de intermédio para as trocas. A partir dela, os sujeitos podem ir se apropriando do que é da cultura do Outro , bem como podem ir fazendo trocas simbólicas e construções do seu Eu, por meio das identificações / The present work is based on the researcher\'s experience with the treatment of autist and psychotic children in group led the author to seek an understanding of the creation as a clinical tool in the treatment of the autism in heterogeneous groups, which is the general objective of the research in question. Also, as specific objectives, it is sought: to contribute to the construction of theoretical-clinical operators for the autism clinic; to contribute to think the clinic of groups under a Lacanian perspective having a dialogue with Kaës contributions. To be able to do that, a link was made between what Lacan psychoanalysts formulate about autism and what Kaës proposes about groups, using especially his formulation about unconscious alliances, and introducing Lacanian considerations about the identification of the subjective mark. The methodological support of this articulation comes from Luis Claudio Figueiredos theorization of the crossing of paradigms. In the development of the present research, we conclude that the creation has effects in a double aspect: as a tool of which the treatment with these children can be used, such as the playing, the games, the storytelling, the art and other forms of expression from the culture and the language (a form of articulation between the subject and the Other). The second strand would be the creation as that which the subject can produce. In the autism, what we propose is that creation as production takes place by means of an ordering of the inner world, the construction of a bodily image, and a saying that may be singular, that surpasses anonymity through its articulation in the culture, the language, with the Other precisely from what is most proper in it: its uniqueness. Considering the closure of these subjects to the other, we propose as strategy the so-called triangular intervention. Again, in this specific clinic we think that there is a double aspect: about group and about the creation. In the group, this occurs through the mediation of the analyst, who directs a child to the other, who lends his voice to what is not being said. Yet, children themselves can sometimes play this role. In creation, triangular intervention takes place when creation can operate as a third, when it can have an intermediate effect for the exchanges. From it, the subjects can take ownership of what is of the culture - of the Other - as well as they can go making symbolic exchanges and constructions of their Self, through identifications

No description available.

One of the world’s largest energy user is the building sector, where much of the energy goes to cooling of buildings. There is need for novel technology to reduce this energy usage, and one way is to install electrochromic windows. They have the ability to vary the transmittance of visible and infrared light by the application of a small electrical voltage, and hence to save large amounts of energy and money and to increase indoor comfort by avoiding strong glares from sunlight. This study concentrates on thin-film electrochromic devices that are based on flexible polyester foils. The conventional design is to make rectangular devices with contacts placed on transparent conductor layers opposite of each other. An electric potential is applied between the contacts, generating an electric field which causes ions to move between films of electrochromic active materials. Since there is an interest on the market for electrochromic windows of other geometries, such as triangular, there is a need to know how to place the contacts in order to obtain a rapid and uniform colouring and bleaching of the device. In order to investigate this, a mathematical model describing the current distribution over the device is a great tool. The model used in this study takes secondary current distribution into account, which includes ohmic effects and electrode kinetics, but neglects diffusive effects due to the assumption that the electrolyte is homogeneous. It describes the two dimensional ohmic flow through the transparent conductor films, the local current due to electrochemical effects in the electrochromic active materials, and a correlation between the optical properties and the injected charge over time. The model is simulated using FlexPDE, which solves the system of differential equations using a Finite Elements Method (FEM). To adjust model parameters, model simulation results are compared to experimental data from rectangular electrochromic devices. Initially, experiments are done on small are devices on which current distribution effects are small. The model is then further developed and validated using large area rectangular devices with 67 cm between the contacts. The model is shown to meet the aims of this study, which is to obtain a simulation tool which can predict the trend in the transmittance distribution. The strength of having this model at hands is that it becomes possible to simulate the transmittance behaviour over time for full size electrochromic windows of different geometries, without having to manufacture expensive devices for experiments. It provides a great design tool for optimizing a rapid and uniform colouring and bleaching, and to investigate how to reduce material costs without affecting performance too much. In this study an example which shows the strength of the model is given. The placement of contacts and its effect on the transmittance distribution in triangular electrochromic windows is examined. It shows that the current distribution model enables time-efficient and cheap design of electrochromic windows.

El objetivo del estudio fue estimar la frecuencia y las pérdidas económicas directas debido a decomisos de hígados de bovinos afectados por distomatosis. Para ello, se evaluaron los registros mensuales, desde setiembre de 2013 hasta diciembre de 2014, del matadero autorizado para el faenado de bovinos de la provincia de Huancayo ubicado a 3,259 msnm en la sierra central del Perú. Posteriormente, se tomaron los pesos en kg de 106 hígados decomisados a causa de distomatosis para estimar la media. Con ayuda del software para análisis de riesgo @RISK® se analizaron las frecuencias mensuales de hígados decomisados, los precios mensuales de hígados comercializados en el matadero, y la media y desviación estándar del peso de hígados con la distribución de probabilidad beta, la distribución triangular y la distribución normal, respectivamente. Las pérdidas económicas mensuales se estimaron multiplicando el número de hígados decomisados por el peso de las vísceras y por el precio de venta. La sumatoria de las cifras mensuales obtenidas brindó el monto total perdido en los dieciséis meses evaluados. Asimismo, se realizó un modelo de distribución estocástica con el fin de obtener una curva de distribución de las pérdidas económicas. El peso promedio de los hígados fue de 4.19 ± 1.28 kg. La frecuencia de hígados decomisados fue 73.66% y la de los decomisos por distomatosis hepática fue 55.72%. No existieron diferencias significativas entre la frecuencia de decomisos y el sexo del animal faenado Las pérdidas económicas a causa de esta parasitosis ascendió a S/.99,164.45 (CI95%: S/.82,495.00 - S/.116,110.00) o US$35,079.71 (CI95%: US$29,178.00 - US$40,938.00). Los hígados son una fuente económica de proteínas y otros nutrientes muy utilizada en la cocina tradicional andina que contribuyen a la seguridad alimentaria en la sierra del país. Palabras claves: Distribución beta, distribución estocástica, distribución triangular, pérdidas económicas, seguridad alimentaria, vísceras. / --- The aim of this study was to estimate the frequency and direct economic losses of bovine liver condemned at slaughterhouses due to fasciolosis. Records of the authorized abattoir for bovine slaughter of Huancayo province, 3259 meters above sea level, in the Peruvian central Andes, were evaluated. Registered data were obtained since September 2013 until December 2014. Thereafter, viscera condemned because of fluke disease were weighed to estimate the average weight. Risk analysis software @Risk® was used in order to estimate economic losses. Monthly frequencies of fasciolosis, the recorded monthly prices of each organ sold at the abattoir, and the average weight and its standard deviation were analyzed with beta, triangular and normal distribution, respectively. Economic losses were estimated by multiplying the number of liver condemned per viscera weight per its selling price. Additionally, a stochastic distribution model was performed with the intention of obtaining a distribution curve of the economic losses. The average weights of livers condemned was 4.19 ± 1.28 kg. The general frequency of livers condemned was 73.66% and the frequency of liver fasciolosis was 55.72%. There were no significant differences between the frequency of infected organs and sex of animals slaughtered. The estimated economic loss because of bovine fasciolosis was S/. 99,164.45 (CI95%: S/. 82,495.00 - S/. 116,110.00) or US$35,079.71 (CI95%: US$29,178.00 - US$40,938.00). The livers contribute to food security in the Andes because they are an economical protein source used in traditional Andean cuisine. Key words: Beta distribution, economic losses, food security, stochastic distribution, triangular distribution, viscera.

Thesis. 1977. M.S.--Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics. / This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND AERONAUTICS. / Includes bibliographical references. / M.S.

Orientador: Maurício Araújo Zanardi / Resumo: Neste trabalho estuda-se a convecção natural laminar em regimes permanente e transiente em cavidades triangulares isósceles. Para a determinação das distribuições de velocidades e temperaturas são utilizadas as equações de conservação da massa, quantidade de movimento e de energia, com a aproximação de Boussinesq. A solução do sistema de equações diferenciais é feita através de um método de volumes finitos utilizando o esquema de discretização "Power-Law" proposto por Patankar e o procedimento SIMPLE é empregado para obtenção de equações de correção de pressões. Os sistemas de equações algébricas encontrados são solucionados numericamente por um algoritmo "line-by-line", que é uma combinação de um método direto TDMA para problemas unidimensionais com o método iterativo de Gauss-Siedel. Foram obtidas soluções para diversas combinações de condições de contorno de temperaturas conhecidas e paredes adiabáticas e as comparações com os resultados existentes na literatura comprovam a confiabilidade do modelo e do código computacional desenvolvidos. São apresentadas ainda soluções quando se consideram fluxos de calor constantes e variáveis com o tempo em uma das superfícies da cavidade. A influência do valor do número de Grashof e da razão de aspecto da cavidade é também discutida. / Abstract: In this work the laminar natural convection in enclosures of isosceles triangular shape is studied. Both the steady state and the transient regimes are included. The mass conservation, momentum and energy equations are used for the velocity and temperature profiles determination. The Boussinesq approach is also considered. The solution of the differential equation set is performed by using a finite volume method. The discretization scheme chosen was the Patankar's Power-Law Scheme and the SIMPLE algorithm is adopted to get a pressure correction equation. The resultant algebraic equations are solved by a line-by-line procedure that is a combination of a direct method (TDMA) and an iterative Gauss-Siedel method. The solution for some different boundary condition, involving prescribed temperatures and adiabatic walls, were obtained and were compared with the literature results. The good agreement between them validates the developed mathematical model and computational code. Here it is also presented solutions for the case of a constant or time dependent heat flux imposed over one of the sides of the enclosure. The influence of the Grashof number and the enclosure aspect ratio is discussed. / Doutor

This paper will discuss the analogues between Leibniz's Harmonic Triangle and Pascal's Arithmetic Triangle by utilizing mathematical proving techniques like partial sums, committees, telescoping, mathematical induction and applying George Polya's perspective. The topics presented in this paper will show that Pascal's triangle and Leibniz's triangle both have hockey stick type patterns, patterns of sums within shapes, and have the natural numbers, triangular numbers, tetrahedral numbers, and pentatope numbers hidden within. In addition, this paper will show how Pascal's Arithmetic Triangle can be used to construct Leibniz's Harmonic Triangle and show how both triangles relate to combinatorics and arithmetic through the coefficients of the binomial expansion. Furthermore, combinatorics plays an increasingly important role in mathematics, starting when students enter high school and continuing on into their college years. Students become familiar with the traditional arguments based on classical arithmetic and algebra, however, methods of combinatorics can vary greatly. In combinatorics, perhaps the most important concept revolves around the coefficients of the binomial expansion, studying and proving their properties, and conveying a greater insight into mathematics.