No / A coplanar edge-fed triangular patch antenna with an integrated stubline is proposed for harmonic rejection application. The design is aimed to achieve a good impedance matching to 50 ω at the fundamental frequency while suppressing radiation of the first and second harmonics. The antenna is attended to operate around 1GHz, with acceptable power gain above 1dBi and less than -15dBi at the harmonics. Simulated and measured results show a reasonable agreement.

No description available.

<p> We investigated the local electronic properties of the triangular-lattice materials NaxCO2 (x = 0.3, 0.72) and the superconductor Na0.3Co02-1.3H20 by 59Co and 170 Nuclear Magnetic Resonance(NMR). For Na0.72Co02 , 59Co NMR line shape shows clearly that there are two types of Co sites - Co(A) site and Co(B) site. The electronic character of Co(A) site is close to that of the less magnetic Co+3-like ion with spin rv 0, while the electronic character of Co(B) site is close to that of the strongly magnetic Co+4-like ions with spin ~ 1/2. The temperature dependence of the Knight shifts suggests that the Co(A) and Co(B) sites are electronically coupled, which is not consistent with simple phase separation. The local Co electronic environments propagate to the adjacent 0 layers through p-d hybridization. Therefore, there are two types of oxygen sites, O(A) site and O(B) site. We introduced a different route to do K vs x plot analysis for the Co sites and determined that for the Co sites, Karbitat(A) is 1.816 % and Kspin(A) is about rv 0.2 %; Karbitat(B) is 4.0255 % and Kspin(B) is at least 1.5 %. For Na0 .3Co02 , 59Co NMR line shape shows that the Co valence is averaged out in this material. There are two types of oxygen sites, 0( C) site and O(D) site, presumably because of the nearest neighbor Na+ sites. The constant behavior of Knight shifts below 100 K for both the Co and 0 sites suggests the emergence of a low temperature canonical Fermi-liquid behavior. For the superconductor Na0.3CoO2-1.3H20, both 59Co and 170 NMR line shapes show that there is only one type of Co site and oxygen site. The Knight shifts of 59Co and 170 are temperature independent below 100 K down to Tc. Combined with our spin-lattice relaxation 1/T 1 T measurements, we can rule out the possibility of ferromagnetic scenario of spin excitations above Tc. </p> / Thesis / Master of Science (MSc)

An investigation to determine the low-speed lateral-directional characteristics of a generic 74-degree delta wing-body configuration employing the latest generation, gothic planform vortex flaps has been conducted. In addition, the theoretical estimates from VORSTAB were compared against experimental data to aid in documenting this new method. VORSTAB is an extension of the Quasi-Vortex-Lattice Method of Lan which empirically accounts for vortex breakdown effects in the calculation of longitudinal and lateral-directional aerodynamic characteristics. The experimental results indicated that leading-edge deflections of 30 and 40 degrees significantly reduce the magnitude of the wing effective dihedral relative to the baseline for a specified angle of attack or lift coefficient. For angles of attack greater than 15 degrees, these flap deflections reduce the configuration directional stability despite improved vertical tail effectiveness. Asymmetric leading edge deflections are shown to be inferior to conventional ailerons in generating rolling moments. Asymmetric leading-edge deflections are effective in producing side force at moderate to high angles of attack. VORSTAB lateral-directional calculations provide ballpark estimates at low to moderate angles of attack. The theory does not account for vortex flow induced, vertical tail effects at high angles of attack and should not be used for this angle of attack region. The empirical formulae for predicting vortex burst effects are not reliable in their present form. Although the basic trends are correct, the magnitude of the predicted vortex burst effect is typically over-estimated. / Master of Science

Steady, inviscid, supersonic flow past conical wings is studied within the context of irrotational, nonlinear theory. An efficient numerical method is developed to calculate cones of arbitrary section at incidence. The method is fully conservative and implements a body conforming mesh generator. The conical potential is assumed to have its best linear variation inside each cell; a secondary interlocking cell system is used to establish the flux balance required to conserve mass. In regions of supersonic cross flow, the discretization scheme is desymmetrized by adding the appropriate artificial viscosity in conservation form. The algorithm is nearly an order of magnitude faster than present Euler methods. It predicts known results as long as the flow Mach numbers normal to the shock waves are near 1; qualitative features, such as nodal point lift-off, are also predicted correctly. Results for circular and thin elliptic cones are shown to compare very well with calculations using Euler equations. This algorithm is then implemented in the design of conical wings to be free from shock waves terminating embedded supersonic zones adjacent to the body. This is accomplished by generating a smooth cross-flow sonic surface by using a fictitious gas law that makes the governing equation elliptic inside the cross-flow sonic surface. The shape of the wing required to provide this shock-free flow, if such a flow is consistent with the sonic surface data, is found by solving the Cauchy problem inside the sonic surface using the data on this surface and, of course, the correct gas law. This design procedure is then demonstrated using the simple case of a circular cone at angle of attack.

For many matrix algebras, every associative automorphism is inner. We discuss results by Đoković that a non-associative Lie automorphism φ of a triangular matrix algebra Tₙ over a connected unital commutative ring, is of the form φ(A)=SAS⁻¹ + τ(A)I or φ(A)=−SJ Aᵀ JS⁻¹ + τ(A)I, where S ∈ Tₙ is invertible, J is an antidiagonal permutation matrix, and τ is a generalized trace. We incorporate additional arguments by Cao that extended Đoković’s result to unital commutative rings containing nontrivial idempotents. Following this we develop new results for Lie isomorphisms of block upper-triangular matrix algebras over unique factorization domains. We build on an approach used by Marcoux and Sourour to characterize Lie isomorphisms of nest algebras over separable Hilbert spaces. We find that these Lie isomorphisms generally follow the form φ = σ + τ where σ is either an associative isomorphism or the negative of an associative anti-isomorphism, and τ is an additive mapping into the center, which maps commutators to zero. This echoes established results by Martindale for simple and prime rings. / Graduate

Este trabalho tem como tema central a epistemologia do audiovisual, na medida em que é o relato de uma investigação sobre a maneira com que adolescentes podem aprender a fazer cinema no ambiente escolar. A experiência docente aqui descrita aconteceu num colégio particular da cidade de São Paulo, durante o segundo semestre do ano de 2015, e se aproveitou do fenômeno da disseminação, entre os estudantes, de câmeras de gravação de vídeos embutidas nos smartphones. A metodologia desenvolvida teve como base a transposição dos conceitos da Abordagem Triangular do ensino das artes visuais, sistematizada por Ana Mae Barbosa, em conjugação com um referencial teórico proveniente das áreas do cinema e audiovisual, com uma menção especial aos escritos de Alain Bergala, Jean-Claude Carrière e Andrei Tarkovski. A reflexão sobre esta experiência é agora oferecida ao público envolvido com as questões contemporâneas de ensino-aprendizagem do audiovisual nas escolas, universidades e cursos livres espalhados pelo Brasil. / This work has as its central theme the epistemology of the audiovisual language, since it is the report of an investigation about the ways in which adolescents learn the filmmaking process into the school environment. The teaching experience described here took place in a private school in the city of São Paulo during the second semester of 2015, and took advantage of the phenomenon that possessing video recording cameras embedded in smartphones is widely disseminated among students. The methodology developed in this dissertation was based on the transposition of the concepts of the Triangular Teaching Approach in Arts, systematized by Ana Mae Barbosa, in conjunction with a theoretical references originally from the cinema and audiovisual areas, with special reference to the writings of Alain Bergala, Jean-Claude Carrière and Andrei Tarkovski. The reflection upon that this experience is now offered to the public involved in contemporary audiovisual teaching-learning issues in schools, universities and courses throughout Brazil.

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

Este trabalho tem como tema central a epistemologia do audiovisual, na medida em que é o relato de uma investigação sobre a maneira com que adolescentes podem aprender a fazer cinema no ambiente escolar. A experiência docente aqui descrita aconteceu num colégio particular da cidade de São Paulo, durante o segundo semestre do ano de 2015, e se aproveitou do fenômeno da disseminação, entre os estudantes, de câmeras de gravação de vídeos embutidas nos smartphones. A metodologia desenvolvida teve como base a transposição dos conceitos da Abordagem Triangular do ensino das artes visuais, sistematizada por Ana Mae Barbosa, em conjugação com um referencial teórico proveniente das áreas do cinema e audiovisual, com uma menção especial aos escritos de Alain Bergala, Jean-Claude Carrière e Andrei Tarkovski. A reflexão sobre esta experiência é agora oferecida ao público envolvido com as questões contemporâneas de ensino-aprendizagem do audiovisual nas escolas, universidades e cursos livres espalhados pelo Brasil. / This work has as its central theme the epistemology of the audiovisual language, since it is the report of an investigation about the ways in which adolescents learn the filmmaking process into the school environment. The teaching experience described here took place in a private school in the city of São Paulo during the second semester of 2015, and took advantage of the phenomenon that possessing video recording cameras embedded in smartphones is widely disseminated among students. The methodology developed in this dissertation was based on the transposition of the concepts of the Triangular Teaching Approach in Arts, systematized by Ana Mae Barbosa, in conjunction with a theoretical references originally from the cinema and audiovisual areas, with special reference to the writings of Alain Bergala, Jean-Claude Carrière and Andrei Tarkovski. The reflection upon that this experience is now offered to the public involved in contemporary audiovisual teaching-learning issues in schools, universities and courses throughout Brazil.

Submitted by Elesbão Santiago Neto (neto10uepb@cche.uepb.edu.br) on 2016-09-06T18:27:10Z No. of bitstreams: 1 PDF - Thamirys Ferreira Cavalcante.pdf: 1378085 bytes, checksum: 3f6a9ebf2593b00cc873e760dcf8ac66 (MD5) / Made available in DSpace on 2016-09-06T18:27:10Z (GMT). No. of bitstreams: 1 PDF - Thamirys Ferreira Cavalcante.pdf: 1378085 bytes, checksum: 3f6a9ebf2593b00cc873e760dcf8ac66 (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.