Made available in DSpace on 2015-04-11T13:47:51Z (GMT). No. of bitstreams: 1 HELEN_MARINHO_PICANCO.pdf: 1695689 bytes, checksum: 6aff76ed83a5fe7c8effe2a87eed889f (MD5) Previous issue date: 2012-06-06 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The study in question presents an alternative to improve the technical characteristics of the clay soil representative of the city of Manaus, the addition of waste from the production of ceramic bricks, from the potteries of Iranduba - Amazonas. Therefore we performed: a) characterization of natural soil and crushed ceramic waste, encompassing particle size analysis, Atterberg limits, density of solids compaction test and b) soil mineralogical characterization of natural and ceramic waste through analysis by diffraction x-ray (XRD), and c) evaluate the mechanical behavior of natural soil sample and soil-aggregate mixture through the trials Simple compressive Strength (RCS) module and Resilience (MR). The results regarding the soil-residue mixture showed that (a) the larger the particle size the greater the residue compressive strength of the mixture, (b) the addition of industrial byproduct tends to soil generally, to reduce the modulus of resilience of mixture, (c) the soilceramic waste showed satisfactory results regarding the mechanical performance, allusive to natural soil, (d) considering the large amount of waste generated currently in production of ceramic bricks, one can conclude that this residue has potential as aggregate alternative in improving soils with low bearing capacity. / O trabalho em pauta apresenta uma alternativa de melhoramento das características técnicas do solo argiloso representativo da cidade de Manaus, pela adição de resíduos da produção de tijolo cerâmico, oriundos das olarias de Iranduba-Amazonas. Para tanto foi realizada: a) caracterização do solo natural e do resíduo cerâmico moído, englobando análise granulométrica, limites de consistência, massa específica dos sólidos e ensaio de compactação; b) caracterização mineralógica do solo natural e do resíduo cerâmico mediante análise por difratometria de raios x e c) avaliação do comportamento mecânico da amostra de solo natural e da mistura solo-agregado, por meio dos ensaios de Resistência à Compressão Simples (RCS) e Módulo de Resiliência (MR). Os resultados referentes à mistura solo-resíduo mostraram que (a) quanto maior a granulometria do resíduo maior é Resistência à Compressão Simples da mistura; (b) o acréscimo do subproduto industrial ao solo tende, em geral, a reduzir o Módulo de Resiliência da mistura; (c) as misturas solo-resíduo cerâmico apresentaram resultado satisfatório quanto ao desempenho mecânico, alusivo ao solo natural; (d) considerando a grande quantidade de resíduos gerados atualmente na produção de tijolos cerâmicos, pode-se concluir que este resíduo apresenta potencial como agregado alternativo na melhoria de solos com baixa capacidade de suporte.

Neste trabalho estudamos a topologia local, trivialidade topolóogica e as singularidades de superfícies regradas em \'R POT.3\'. O objetivo do trabalho é comparar as singularidades que ocorrem no conjunto das superfícies regradas com as singularidades de germes de aplicações de \'R POT.2\' em \'R POT.3\', fazer a classificação topológica local e estudar a trivialidade topológica de famílias de superfícies regradas. Finalmente, discutimos possíveis generalizações de superfícies regradas para altas dimensões / We study the local topology, topological triviality and singularities of ruled surfaces in \'R POT.3\'. In this work we compare the singularities of germs from \'R POT.2\' to \'R POT.3\' with the singularities appearing in the set of ruled surfaces, doing a local topology classification of the ruled surface and study the topological triviality of families of ruled surfaces. Finally we will try to give possible generalizations of ruled surfaces for higher dimensions.

Neste trabalho, introduzimos as álgebras de Weyl clássicas A = A_n e as generalizadas A = D(sigma, a). Apresentamos algumas propriedades importantes dessas álgebras, dentre outras, que a n-ésima álgebra de Weyl A_n é um domínio simples Noetheriano à esquerda. Introduzimos os módulos de peso sobre A e estudamos os A-módulos de peso projetivos. Iniciamos a classificação dos A-módulos de peso simples (isto é, irredutíveis) através de uma categoria linear C_O e do seu esqueleto S_O cf. A classificação total dos A_infty-módulos de peso simples é dada utilizando a ação de certas localizações no anel de polinômios cf. Classificamos os blocos do tipo mansa na categoria dos A-módulos de peso localmente finitos e determinamos os A-módulos indecomponíveis nos blocos do tipo mansa. Seguindo, descrevemos os A-módulos de peso injetivos e projetivos indecomponíveis e deduzimos uma descrição dos blocos na categoria dos A-módulos de peso por quivers e relações. / In this dissertation, we introduce the classical Weyl algebras A = A_n and the generalized A = D(sigma, a). There are some important properties of these algebras, among others, that the n-th Weyl algebra A_n is a left Noetherian simple domain. We introduced the weight modules over A and study the projective weight A-modules. Started the classification of simple weight A-modules (this is, irreducible) by linear category C_O and its skeleton S_O in accordance with. The complete classification of simple weight A-modules is given using the action of certain localizations in the polynomial ring in accordance with. We classify the tame blocks in the category of locally-finite weight A-modules and determine the indecomposable A-modules in the tame blocks. Following, we describe indecomposable projective and injective weight A-modules and deduce the description of the blocks in the category of weight A-modules by quivers and relations.

Neste trabalho estudamos as 2-álgebras de Lie simples, de dimensão finita e de posto toral 3, sobre um corpo algebricamente fechado de característica 2. Nós conjecturamos que a única 2-álgebra de Lie simples de este tipo é W(1, 3). Assim, nosso principal objetivo é verificar a veracidade desta conjectura para estas álgebras de pequenas dimensões. Como resultados, provamos que esta conjectura é certa para todas estes álgebras de dimensão menor ou igual a 16, e também em alguns casos especiais quando a dimensão é 17. / In this work we study the simple Lie 2-algebras of finite dimension, and toral rank 3 over an algebraically closed field characteristic 2. We surmise that the only simple Lie 2-algebra of this type is W(1, 3). So, our main objective is to study the truthful of this conjecture for these algebras of small dimensions. As a result, we prove that this conjecture is true for all these algebras less than or equal to 16 dimension, and also in some special cases when the dimension is 17.

Este trabalho apresenta a teoria de homotopia simples, desenvolvida por J. H. C. Whitehead, com o objetivo de obter um método para classificar espaços com o mesmo tipo de homotopia. Com esta motivação, Whitehead introduz o conceito de equivalência de homotopia simples entre complexos simpliciais, que posteriormente é generalizado para complexos CW, espaços criados pelo próprio Whitehead. Um resultado imediato desta teoria é que quando dois espaços têm o mesmo tipo de homotopia simples, eles têm o mesmo tipo de homotopia. A recíproca desta afirmação é então conjecturada. Mostraremos que trata-se de uma conjectura falsa, contudo a investigação de sua confirmação produz um material que toma rumo próprio. Nosso enfoque são os aspectos algébricos envolvidos nesta investigação / This work presents the simple-homotopy theory, developed by J. H. C. Whitehead, with the goal to get an method to classify spaces with the same homotopy type. So, with this motivation, Whitehead introduced the concept of simple-homotopy equivalence between simplicial complexes, that later was generalized for CW complexes, spaces created by himself. An immediate result of this theory is that, if two spaces have the same simple-homotopy type, they have the same homotopy type. Then, the reciprocal statement is conjectured. We will show that the conjecture is not true, but the research about its truthfulness produces a material that takes its own way. Our approach are the algebraic aspects involved in this research

Seja d:= \'\\partial\'/\'\\partial IND.x\'+ \'beta\\partial\'/\'partial IND.y\'uma derivação simples de K[x,y], onde K é um corpo de característica zero. Doering, Lequain e Ripoll ([1]) provaram que exite um \'gama\'\'PERTENCE A\' K[x,y] tal que o operador S = \'\\partial\'/\'\\partial x\'+\'beta\\partial\'/\'\\partial y\'+\'gama\'\'PERTENCE A\'\'A IND.2\'\':= K[x,y]\' < \'\\partial\'/partial IND.x\', \'\\partial\'/\'partial\'/\'partial IND y\'\'>\'gera um ideal à esquerda maximal principal de \'A IND.2\'. Desta maneira mostraram, para n=2, que a seguinte conjectura é verdadeira: Seja d:=\'\\partial\'/ \'\\partial IND.x\"IND.1\"+\"alfa\'IND.2\'\'\\partial\'/\'\\partial\'IND.x\'\'IND.2\"+...+ alfa IND.n\"\\partial\'/\'\\partial IND.x\'\'IND.n\" uma derivaçào simples de K[\'x IND.1\'...\'x IND n\']. Então, A IND.n\'(d+\'gama\') é um ideal à esquerda maximal principal de Á IND.n\', para algum \'gama\'\'PERTENCE A\'K[\'x IND.1\',...\'x IND.n\']. Nós mostramos que esta conjectura é verdadeira em alguns casos particulares / Let d: =\'\\partial/\'/\'\\partial IND.x\'+ \'beta\\partial IND.y\' be a simple derivation of K[x,y], where K is a field of characteristic zero. Doering, Lequain e Ripol ([1]) proved that there exists a polynomial um \'gama\'\'IT BELONGS\' K[x,y] such that the operador S =\'\\partial\'/\'\\partial x\'+\'beta\\partial\'/\'\\partial y\'\'gama\'\'IT BELONGS\'\' á ind.2\':= K[x,y]\' < \'\\partial\'/\'partial IND.x\',\'partial\'/\'partial\'/\'partial IND y\'> \'generates a principal maximal left ideal of A IND.2\'. In this way, they showed that, for n=2, the following conjectures is tru: Let d:=\'\\partial\'/\'\\partial IND.x\"+\"alfaÍND.2\"\\partial\'/ \"\\partial\' IND.x\'IND.2\"+ álfa IND.n\"\\partial IND.xÍND.n\"be a simple derivation of K[\'x IND.1\',...,\'x IND n\']. Then, \'A IND.n\'(d+\'gama\') is a principal maximal left ideal of \'A IND.n\',for some \'gama\"IT BELONGS\'K[x IND.1\',...,\'x IND.n\']. We show that this conjecture is true in some cases

M.A. (English) / This dissertation aims to examine the nature of the unique creative response to the prison experience. Different modes of artistic expression will be analyzed to show that there is no single literary response to incarceration, and to demonstrate the truth of Oscar Wilde's assertion that "technique is really personality".' To this end, autobiographical and existential elements inherent in selected prison writings will be the main focus of this study, since the concern of both the autobiographer and the existential philosopher is with the dynamic, emergent personality. The totalizing prison situation is totalitarian in essence, since this kind of prison regime assumes responsibility for all aspects of the imprisoned human being, its aim being to annihilate the individual self. In the face of this threat, a human being often feels the need to assert his humanity and selfhood. The creative response can provide a means of reinstating the self. The autobiographer, who concentrates upon the 'becoming' self, must needs be a philosopher, existential in essence, in the search for the 'autos', the self, in relation to the 'bios', one's life. This is realized through 'graphe', language, which enables the writer to probe his/her depths and order his/her disparate experiences into some kind of balance, merging past and present. The fragmented world of the prisoner particularly lends itself to creative expression as the writer attempts to impose some order upon his/her broken life.

The thesis presents the application of cybernetic thinking to the central problem of investment analysis; that of share-price prediction. Cybernetics is seen as an inter-disciplinary study (as opposed to multi-disciplinary) in which the barriers between living and non-living systems are ignored. Suggestions from two independant studies in investment analysis are taken tip and a theory of investment is proposed with a view to utilising the suggestions. The theory is formalised using the simple linear perceptron and methods based on logical calculi are used to analyse the perceptron formulation. The theory is then tested by allowing the perceptron to make predictions and the results of these predictions are discussed in the light of the theoretical analysis. Finally suggestions are made for alternative approaches to investment analysis which could lead to better results.

The TAC Supply Chain Management game was designed to capture many of the challenges involved in dynamic supply chain practices. To evaluate the game I created four different agents, which operate according to simple but very different strategies. In addition, an advanced agent was created to see if the game was advanced enough not to be dominated by simple strategies. While the game is advanced enough to resist simple strategies, it is so simplified that it will never help solve any real world problems unless it is expanded to include more factors/problems of supply chain management. / TAC Supply Chain Management spelet var designat för att fånga så många av utmaningarna inom dynamiska supply chains som möjligt. För att utvärdera spelet skapade jag fyra olika agenter, som har enkla beteenden men väldigt olika strategier. Utöver detta skapade jag också en avancerad agent för att se om spelet var avancerat nog att inte domineras av enkelspåriga strategier. Medans spelet är avancerat nog att stå emot enklare strategier, är det så förenklat att det aldrig kommer vara till någon hjälp för att lösa problem i den riktiga världen om det inte är utökat till att inkludera fler faktorer/problem inom supply chain management. / contact me at: pt00val@student.bth.se or viktor@allblom.info

Power Analysis Attacks use the fact that power consumption in modern microprocessors and cryptographic devices depends on the instructions executed on them and so, it varies with time. This leak- age is mainly used to deduce cryptographic keys as well as algorithms by direct observation of power traces. Power Analysis is a recent field of study that has been developed for the last decade. Since then, the techniques used have evolved into more complex forms, that some- times require a variety of skills that makes the subject difficult to start with. Nowadays it is changeling to tackle the problem without expen- sive equipment; what is more, the off-the-shelf solutions to do Power Analysis Attacks are rare and expensive. This thesis aim to provide a low cost and open platform as an entry point to Power Analysis for a price under 10 USD. Besides that, it is designed to be able to per- form Simple Power Analysis and Differential Power Analysis attacks to a 8 bit microcontroller, including the software needed to automate the process of taking the measurements. Finally, the platform can be extended to cover a wide range of microcontrollers, microprocessors and cryptographic devices by simple insertion in a bread board, which makes it the perfect device for new comers to the field.