Submitted by Verena Bastos (verena@uefs.br) on 2015-07-21T00:40:51Z No. of bitstreams: 1 Disserta??o.pdf: 930316 bytes, checksum: c7081dbe78b85faae39c3ac523607f58 (MD5) / Submitted by Verena Bastos (verena@uefs.br) on 2015-07-21T00:40:51Z No. of bitstreams: 1 Disserta??o.pdf: 930316 bytes, checksum: c7081dbe78b85faae39c3ac523607f58 (MD5) / Made available in DSpace on 2015-07-21T00:40:51Z (GMT). No. of bitstreams: 1 Disserta??o.pdf: 930316 bytes, checksum: c7081dbe78b85faae39c3ac523607f58 (MD5) Previous issue date: 2014-08-28 / Made available in DSpace on 2015-07-21T00:40:51Z (GMT). No. of bitstreams: 1 Disserta??o.pdf: 930316 bytes, checksum: c7081dbe78b85faae39c3ac523607f58 (MD5) Previous issue date: 2014-08-28 / In this dissertation, we analyze the short crime stories by Mayrant Gallo ? one of the most productive writers from Bahia presently ? trying to demonstrate the theme of crime as a metaphor of the world we live in, which is often violent and corrupt. In the work of the author in question ? as well as in the work of many others crime fiction writers ?, we show clearly that the representation of the criminal universe is a method or a means of making the reader reflect on things more widely than the simple ?who killed? questioning. We aim to demystify the ideia very widespread among literary critics that crime fiction is a ?minor genre?. In this regard, we discuss the characteristics, similarities and differences between its types: detective fiction, noir and ?action? fiction. This last type, although practiced by writers like Edgar Allan Poe e Jorge Luis Borges, for example, had its terminology coined only in 2005, by Mayrant Gallo, who is also a teacher and a crime fiction theorist, a genre which has been insufficiently researched in the academy. / Neste trabalho, analisamos os contos policiais do escritor Mayrant Gallo ? um dos mais fecundos autores da Bahia na contemporaneidade ? tentando demonstrar a tem?tica do crime como uma met?fora, uma meton?mia do mundo em que vivemos, muitas vezes violento e corrupto. Na obra do autor em foco ? assim como na de tantos outros escritores de hist?rias policiais ? evidenciamos a representa??o do universo criminal como um m?todo, um meio de levar o leitor a reflex?es bem mais amplas do que ao mero questionamento do ?quem matou?. Objetivamos desmitificar a ideia, que ainda perdura entre os cr?ticos liter?rios, de que a narrativa policial ? um ?g?nero menor?. Para tanto, discutimos as caracter?sticas, semelhan?as e diferen?as dos tipos da modalidade estudada: de enigma, noir e ?de a??o?. Este ?ltimo, apesar de ter sido praticado por escritores como Edgar Allan Poe e Jorge Luis Borges, por exemplo, teve a sua terminologia cunhada apenas em 2005, por Mayrant Gallo, que, al?m de escritor, ? professor e te?rico da literatura policial, pouco divulgada no ?mbito universit?rio.

Submitted by Setor de Tratamento da Informa??o - BC/PUCRS (tede2@pucrs.br) on 2016-06-03T14:20:06Z No. of bitstreams: 1 DIS_FLAVIO_HENRIQUE_SILVEIRA_TOMAZI_COMPLETO.pdf: 1105956 bytes, checksum: 166a99c8e2c91a1e101b742dc1d77690 (MD5) / Made available in DSpace on 2016-06-03T14:20:06Z (GMT). No. of bitstreams: 1 DIS_FLAVIO_HENRIQUE_SILVEIRA_TOMAZI_COMPLETO.pdf: 1105956 bytes, checksum: 166a99c8e2c91a1e101b742dc1d77690 (MD5) Previous issue date: 2016-01-20 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Surgical assisted rapid maxillary expansion (SARME) represents an important topic in Oral and Maxillofacial Surgery. This surgical method is described for transverse maxillary corrections in patients with completed bone formation, or failure obtained with the non-surgical method of disjunction of the maxilla. There are several techniques and devices associated with SARME, the most famous are the Hyrax and Hass disjunctor, which are tooth-borne and tooth-muco-borne respectively. Bone-borne devices are also described in the literature and have the advantage of direct transmission of the forces to the maxilla and not to the teeth. Its main disadvantage is the cost that makes it impossible to most of the treatments. The device developed by Battistetti et al. (2010) translates into a custom bone-borne disjunctor, made from a lathe and two steel plates fused by a silver solder and fixed to the bone by two screws on each side. It has all the advantages of a conventional bone-borne device with much lower cost. The aim of this study is to evaluate the transmission of forces and efficiency of Battistetti device and make a comparison with the Hyrax disjunctor, through a study using finite elements (FE). The results demonstrate that the custom device developed by Battistetti transmits the force much more efficiently compared to Hyrax, and there is no dental commitment. It is also observed a bigger bone displacement using bone-borne device in addition to a smaller disjunctor fatigue. / A expans?o r?pida de maxila assistida cirurgicamente (ERMAC) representa um tema de grande import?ncia dentro da Cirurgia e Traumatologia Bucomaxilofacial. Essa modalidade cir?rgica ? descrita para corre??es transversas da maxila em pacientes com forma??o ?ssea finalizada, ou que obtiveram insucesso com a modalidade de disjun??o da maxila. Existem v?rias t?cnicas e dispositivos associados ? ERMCA, sendo os mais conhecidos o disjuntor de Hyrax e de Hass, que s?o dentossuportados e dento-mucossuportados respectivamente. Dispositivos osseossuportados tamb?m s?o descritos pela literatura e apresentam como vantagem a transmiss?o direta de for?as ? maxila e n?o aos dentes. Sua principal desvantagem ? o custo, que acaba inviabilizando a maior parte dos tratamentos. O dispositivo preconizado por Battistetti et al. (2010) traduz-se por um disjuntor osseossuportado personalizado, confeccionado a partir de um torno central e placas de a?o unidos atrav?s de uma solda de prata, fixado no osso por 2 parafusos de cada lado. Ele apresenta todas as vantagens de um dispositivo osseossuportado convencional, com um custo muito reduzido. O presente trabalho tem como objetivo avaliar a transmiss?o de for?as e efici?ncia do aparelho de Battistetti e fazer uma compara??o com o aparelho amplamente usado de Hyrax, atrav?s de um estudo por elementos finitos (FE). Os resultados demonstram que o aparelho personalizado de Battistetti transmite as for?a nele aplicadas com muito mais efici?ncia em rela??o ao aparelho de Hyrax e n?o h? comprometimento dental. Observa-se tamb?m um deslocamento ?sseo maior usando o dispositivo osseossuportado, al?m de uma menor fadiga do aparelho.

Made available in DSpace on 2014-12-17T15:38:49Z (GMT). No. of bitstreams: 1 MariaHOD_DISSERT.pdf: 873654 bytes, checksum: cf254e02723c86333cb5282f97151990 (MD5) Previous issue date: 2010-08-27 / This study investigates the applicability of the Rorschach Method for evaluating the personality of people with Autism Spectrum Disorder (ASD).The relevance of this study is justified by the limited number of investigations published in the research literature concerning the use of psychological tests used for evaluating the personality of individuals with ASD. The Rorschach Method was chosen as an appropriate instrument considering it reveals the personality s basic structure, including characteristics of the affectivity, sensuality, inner life, mental resources, psychic energy and general characteristics and intellectual state of the individual. The general objective of this investigation consisted of verifying the applicability of the use the Rorschach Method in the evaluation of the characteristics of people's personality with autism spectrum disorder (ASD).The study also sought to identify perceptive factors of the personality structure of individuals with ASD, provide contributions of the understanding of this syndrome, seeking the establishment of possible therapeutic interventions starting from diagnostic by Rorschach Method. In addition, this investigation aims at verifying the adequacy of using the Rorschach Method as an instrument for evaluating the personality characteristics of individuals with ASD and its possible use in Brazil, starting from preliminary normative results. Participants consisted of 44 youngsters and adults, both genders with age range 14 - 39 years-old (average: 23.5 years-old) distributed in 2 groups. Group 1: composed with 22 youngsters and adults with clinical diagnosis of autism spectrum disorder (communication impairments, social interaction deficits, restricted and repetitive interests and activities); Group 2: composed with 22 youngsters and adults with typical behavior. The participants were paired to gender and age, individually. The Mann-Whitney and Wilcoxon tests were applied to evaluate statistical differences between the groups, considering demographic and social data. The results indicate the presence of restricted interest or difficulty in the expression of the social and affective interaction of people with ASD. However, the need of broader normative studies concerning the use of personality evaluation instruments for people with ASD is warranted. These investigations could help understand the psychic dynamism of this population, offering subsidies that can be added to the current techniques of diagnosis. The Rorschach Method is susceptible to application but it is necessary to respect the individual limitations of these people and to establish more criterions about the spectrum / O presente trabalho investiga a aplicabilidade do Rorschach na avalia??o de caracter?sticas de personalidade de sujeitos com Transtorno do Espectro Autista (TEA). A relev?ncia do estudo deve-se ? necessidade do desenvolvimento de pesquisas na ?rea de avalia??o psicol?gica de sujeitos com TEA, mediante a utiliza??o de instrumentos apropriados para tal finalidade. A escolha pelo M?todo de Rorschach ampara-se em ser uma t?cnica que revela a organiza??o b?sica da estrutura da personalidade, incluindo caracter?sticas da afetividade, sensualidade, vida interior, recursos mentais, energia ps?quica e tra?os gerais e particulares do estado intelectual do sujeito. Os objetivos espec?ficos buscaram identificar os fatores perceptivos da estrutura de personalidade de sujeitos com TEA; contribuir para o entendimento de tal s?ndrome, visando o estabelecimento de poss?veis interven??es terap?uticas a partir do Psicodiagn?stico do Rorschach e, verificar a adequa??o do referido m?todo como instrumento de avalia??o de caracter?sticas de personalidade de sujeitos com TEA e poss?veis uso no Brasil, a partir de resultados normativos preliminares. Os participantes foram pareados individualmente por sexo e idade totalizando 44 adolescentes, jovens e adultos de ambos os sexos, na faixa et?ria de 14 a 39 anos (m?dia: 23,5 anos) distribu?dos em 2 grupos. Grupo 1 composto por 22 adolescentes,jovens e adultos com diagn?stico cl?nico do espectro autista (dificuldades na comunica??o, intera??o social, atividades e interesses restritos e repetitivos); Grupo 2 constitu?do de 22 adolescentes, jovens e adultos com comportamento t?pico e escolaridade compat?vel ao primeiro grupo. As an?lises foram obtidas por meio dos testes estat?sticos Mann-Whitney e Wilcoxon para verifica??o das poss?veis diferen?as, considerando vari?veis sociodemogr?ficas. Os resultados apontam para um interesse restrito ou mesmo dificuldade na express?o da intera??o s?cio-afetivas dos sujeitos com TEA. Ressalta-se, por?m, a necessidade de estudos acerca da avalia??o de caracter?sticas de personalidade de sujeitos com TEA visando uma melhor compreens?o do dinamismo ps?quico desses de modo a fornecer subs?dios que possam somar-se as t?cnicas diagn?sticas j? existentes, sendo o M?todo de Rorschach uma possibilidade de caracteriza??o de express?o da personalidade

Made available in DSpace on 2014-12-17T15:42:16Z (GMT). No. of bitstreams: 1 IzangelaMA_TESE.pdf: 6002351 bytes, checksum: 61a1b03824f174ac0458b386d74608e7 (MD5) Previous issue date: 2012-03-21 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / In this study five compositions were synthesized zirconia doped with cerium and neodymium ions in the system Ce10-xNdx Zr90O2 with 0,5 ≤ x ≤ 4,0 using the Pechini method. The powders were characterized by thermogravimetric analysis, differential thermal analysis, infrared spectroscopy and X-ray diffraction, with application of Rietveld refinement of the calcination temperatures of 350?C/3h and 30 minutes at 900?C/3h. All compositions stabilized with a mixture of cubic and tetragonal phase zirconia. The samples were pressed into bars and sintered at 1500?C/3h and 1500?C/6h, being characterized by Xray diffraction, with application of the Rietveld refinement, density and porosity using Archimedes method, scanning electron microscopy and resistance the three point bending. It has been observed the increase in strength with increasing sintering temperature for the compositions x = 2,0 and x = 4,0. For x = 2,0 the main phase was the cubic with 92,56% with crystallite size of 0,56 μm, density and porosity of 96,82% from 1,36%. For x = 4,0 was a mixture of cubic and tetragonal phase with 21% and 37,98%, respectively. The crystallite size was 54,21 nm and 49,64 nm with a density porosity of 97,45% and 1,32% respectively. In the analysis of the fracture surface was observed a greater amount of grain fracture intragranular type, which contribute to increase the mechanical strength of the ceramic. Increased addition of the neodymium ion in the crystal lattice of the zirconium showed a nearly linear behavior with increasing mechanical strength of the zirconia ceramic. Was obtained a bending resistance of 537 ? 38 MPa for the composition x = 2,0 predominantly attributed to cubic phase with 92,56% / No presente trabalho foram sintetizadas cinco composi??es de zirc?nia dopada com ?ons c?rio e neod?mio no sistema Ce10-x.Ndx Zr90O2 com 0,5 ≤ x ≤ 4,0 com o uso do m?todo Pechini. Os p?s foram caracterizados por an?lise termogravim?trica, an?lise t?rmica diferencial, espectroscopia na regi?o do infravermelho e difra??o de raios X, com a aplica??o do refinamento de Rietveld nas temperaturas de calcina??o de 350?C/3h e 30 minutos a 900?C/3h. Todas as composi??es estabilizaram com mistura de fase tetragonal e c?bica da zirc?nia. As amostras foram prensadas em forma de barras e sinterizadas a 1500?C/3h e 1500?C/6h, sendo caracterizadas por difra??o de raios X, com a aplica??o do refinamento de Rietveld, densidade e porosidade usando o m?todo de Arquimedes, microscopia eletr?nica de varredura e resist?ncia a flex?o em tr?s pontos. Foi observado o aumento da resist?ncia mec?nica com o aumento da temperatura de sinteriza??o para as composi??es x=2,0 e x=4,0. Para x=2,0 a fase principal foi ? c?bica com 92,56 % com tamanho de cristalito de 0,56 μm, densidade de 96,82 % e porosidade de 1,36 %. Para x=4,0 ocorreu uma mistura da fase tetragonal e c?bica com 21 % e 37,98 %, repectivamente. O tamanho de cristalitos foi de 54,21 nm e 49,64 nm, com densidade de 97,45 % e porosidade de 1,32 %, respectivamente. Nas an?lises da superf?cie de fratura foi observado uma maior quantidade de gr?os com fratura do tipo intragranular, na qual contribuiu para o aumento da resist?ncia mec?nica da cer?mica. O aumento da adi??o do ?on neod?mio na rede cristalina da zirc?nia apresentou um comportamento quase linear com o aumento da resist?ncia mec?nica da cer?mica de zirc?nia. Foi obtida uma resist?ncia a flex?o de 537 ? 38 MPa para a composi??o x=2,0 atribu?da a predomin?ncia da fase c?bica com 92,56 %

Made available in DSpace on 2014-12-17T15:42:27Z (GMT). No. of bitstreams: 1 MariaJOSB.pdf: 5434037 bytes, checksum: 1a000204d534c8f41a3acbfce7dfaef5 (MD5) Previous issue date: 2007-09-17 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / It was synthesized MnZn ferrite with general formulae Mn1-xZnxFe2O4 (mol%), 0,3 &#8804; x &#8804; 0,7 by using the citrate precursor method. The precursors decomposition was studied by thermogravimetric analysis (TGA), differential thermogravimetric analysis (DTG), differential thermal analysis (DTA) and Fourier transform infrared (FTIR) of powder calcined at 350?C/3,5h. X-ray diffraction pattern (XRD) of samples was done from 350 to 1200?C/2h using various atmospheres. The power calcined at 350?C/3,5h formed spinel phase. It is necessary atmosphere control to avoid secondary phase such as hematite. From 900 to 1200?C was obtained 90,66 and 100% of MnZn spinel ferrite phase, respectively. Analysis by dispersive energy scanning (EDS) at 350?C shows high Mn and Zn dispersion, indicating that the diffusion process was homogeneous. Semi-quantitative analysis by EDS verified that despite the atmosphere control during calcinations at high temperatures (< 800?C) occurred ZnO evaporation causing stoichiometric deviation. Vibrating sample magnetometer (VSM) measures show soft ferrite material characteristics with Hc from 6,5 x 10-3 to 11,1 x 10-2 T. Saturation magnetization (Ms) and initial permeability (?i) of MnZn spinel phase obtained, respectively, from 14,3 to 83,8 Am2/kg and 14,1 to 62,7 (Am2/kg)T / Foi sintetizada ferrita de MnZn com f?rmula geral Mn1-xZnxFe2O4 (mol%) para 0,3 &#8804; x &#8804; 0,6 com uso do m?todo dos citratos precursores. A decomposi??o dos precursores foi estudada por an?lise termogravim?trica (TGA), termogravim?trica diferencial (DTG), an?lise t?rmica derivada (DTA) e espectroscopia na regi?o do infravermelho (FTIR) dos p?s calcinados em 350?C/3,5h. Foram feitas difra??es de raios X (DRX) entre 350 e 1200?C/2h usando v?rias atmosferas. O p? calcinado a 350?C/3,5h formou fase espin?lio. ? necess?rio o controle da atmosfera para evitar fases secund?rias como a hematita. Em 900 e 1200?C foram obtidos respectivamente, 90,7 e 100% de fase ferrita espin?lio. An?lises por espectroscopia de energia dispersiva (EDS) em 350?C mostrou alta dispers?o de Mn e Zn, indicando que o processo de difus?o foi homog?neo. A an?lise semi-quantitativa por EDS verificou que apesar do controle da atmosfera durante a calcina??o em altas temperaturas (> 800?C), ocorreu vaporiza??o de ZnO causando desvio estequiom?trico. Medidas por magnet?metro de amostra vibrante (MAV) mostraram caracter?sticas de materiais magneticamente macios com Hc de 6,5 x 10-3 at? 11,1 x 10-2 T. A magnetiza??o de satura??o e a permeabilidade inicial da fase espin?lio de MnZn foi obtida entre 14,3 a 83,8 Am2/kg e 14,1 a 62,7 (Am2/kg)T, respectivamente

Submitted by PPG Zoologia (zoologia-pg@pucrs.br) on 2018-09-13T17:02:53Z No. of bitstreams: 1 Disserta??o - Escalona - Mois?s.pdf: 3628906 bytes, checksum: a6fc5f6bc6015a1a1a95f67e3c5c5f16 (MD5) / Approved for entry into archive by Sheila Dias (sheila.dias@pucrs.br) on 2018-09-14T17:19:08Z (GMT) No. of bitstreams: 1 Disserta??o - Escalona - Mois?s.pdf: 3628906 bytes, checksum: a6fc5f6bc6015a1a1a95f67e3c5c5f16 (MD5) / Made available in DSpace on 2018-09-14T17:46:57Z (GMT). No. of bitstreams: 1 Disserta??o - Escalona - Mois?s.pdf: 3628906 bytes, checksum: a6fc5f6bc6015a1a1a95f67e3c5c5f16 (MD5) Previous issue date: 2018-03-28 / Conselho Nacional de Pesquisa e Desenvolvimento Cient?fico e Tecnol?gico - CNPq / Os anuros emitem cantos de an?ncio com o objetivo de atrair parceiros e repelir concorrentes co-espec?ficos. Eu investiguei a associa??o entre o comprimento do corpo, o s?tio de vocaliza??o, o cuidado parental e a varia??o em propriedades ac?sticas do canto (dura??o do canto, n?mero de notas, freq??ncia de pico, largura de banda de freq??ncia e estrutura do canto) em pererecasde-vidro?uma fam?lia de pererecas que habitam florestas neotropicais?controlando para efeitos de ancestralidade compartilhada. Eu tamb?m explorei o tempo e o modo de evolu??o dessas caracter?sticas e as comparei com as de tr?s caracter?sticas morfol?gicas (comprimento do corpo, largura da cabe?a e comprimento da t?bia). Eu gerei e compilei dados ac?sticos para 72 esp?cies de pererecas-de-vidro (46 % da riqueza descrita), incluindo representantes de todos os g?neros, e analisei os dados usando m?todos comparativos filogen?ticos. Descobri que quase todas as caracter?sticas ac?sticas avaliadas tinham sinal filogen?tico significativo, mas geralmente modesto. O pico de frequ?ncia dos cantos ? significativamente associado ao comprimento do corpo, enquanto a estrutura dos cantos ? significativamente associada ao s?tio de vocaliza??o e ao sexo do adulto que desempenha cuidado-parental. Meus resultados sustentam que, al?m das restri??es filogen?ticas, o tamanho do corpo est? associado ? evolu??o dos cantos de an?ncio em Centrolenidae. A diversifica??o de caracter?sticas ac?sticas ao longo da filogenia de pererecas-de-vidro concorda com a radia??o dos taxa na transi??o entre Mioceno e Plioceno. A disparidade estimada para caracter?sticas ac?sticas foi geralmente maior que a de caracter?sticas morfol?gicas, e o pico de disparidade de caracter?sticas ac?sticas geralmente ocorreu mais tarde na evolu??o do grupo, sugerindo um in?cio historicamente recente da pronunciada diverg?ncia ac?stica entre esp?cies deste clado. / Anurans emit advertisement calls with the purpose of attracting mates and repelling conspecific competitors. I investigated the association between body size, calling site and parental care with call variables (call duration, number of notes, peak frequency, frequency bandwidth and call structure) in glassfrogs?a family of leaf-dwelling frogs which inhabit Neotropical forests?while controlling for effects of shared ancestry. I also explored the tempo and mode of evolution of these traits and compared them with those of three morphological traits (snout-vent length, and relative head width and tibia length). I generated and compiled acoustic data for 72 glassfrog species (46 % of described diversity), including representatives of all genera (n = 12), and analyzed the data using phylogenetic comparative methods. I found that almost all acoustic traits evaluated had significant, but generally modest phylogenetic signal. Peak frequency of calls is significantly associated with body-size, while call structure is significantly associated with calling site and with the sex of the caring parent. My results support that, besides phylogenetic constraints, body size is associated with the evolution of advertisement calls in glassfrogs. Diversification of acoustic traits along the phylogeny of glassfrogs is coincident with the radiation of extant taxa at the Miocene-Pliocene boundary. The estimated disparity of acoustic traits was larger than that of morphological traits and the peak in disparity of acoustic traits generally occurred later in the evolution of glassfrogs, suggesting a historically recent outset of the pronounced acoustic divergence in this clade.

Submitted by PPG Administra??o e Neg?cios (ppgad@pucrs.br) on 2018-10-31T17:22:35Z No. of bitstreams: 1 JOSIANE_BRIETZKE_PORTO_TES.pdf: 2215776 bytes, checksum: fc5d237ed433a12756eb499883e32497 (MD5) / Approved for entry into archive by Sheila Dias (sheila.dias@pucrs.br) on 2018-11-01T13:25:18Z (GMT) No. of bitstreams: 1 JOSIANE_BRIETZKE_PORTO_TES.pdf: 2215776 bytes, checksum: fc5d237ed433a12756eb499883e32497 (MD5) / Made available in DSpace on 2018-11-01T13:33:16Z (GMT). No. of bitstreams: 1 JOSIANE_BRIETZKE_PORTO_TES.pdf: 2215776 bytes, checksum: fc5d237ed433a12756eb499883e32497 (MD5) Previous issue date: 2018-08-30 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Smart city is an approach to managing and coping with urban challenges in search for innovative solutions leading to better quality of life and sustainability in cities. Several initiatives have been undertaken, with a significant worldwide growth trend in the coming years. Such initiatives, however, may require non-trivial public investment, and failures resulting from them can have important consequences such as monetary loss, loss of reputation, reduced confidence and lack of public value. This research aims at setting a methodology in smart cities composed of a reference model and an assessment method from the Public Value perspective. These artifacts were evaluated based on the perception of 23 representatives of the Quadruple Helix (government, industry, university and citizens) and on the results of the applicability in practice, through an initial pilot evaluation, in the city of Nova Santa Rita. It follows Design Science as its epistemological paradigm and Design Science Research as its method, uniting theoretical and methodological rigor as well as practical utility for society. The results showed that the artifacts developed in this research can help in the design and assessment of smart cities in a gradual way, bringing together best practices considered intelligent and that allow for the expansion and/or generation of Public Value, consisting of a prescriptive scientific contribution. Among the contributions are the protocol, contingency and construction heuristics, which detail how these artifacts were rigorously designed and developed, under the Design Science paradigm, to solve the problem identified in this research. They are specific and useful knowledge, generated from this research, aimed at the practice and resolution of real problem, and can be used for future evolutions of the artifacts developed in the research and/or design of new artifacts, in different contexts and classes of problems. / Smart city corresponde a uma abordagem para gerenciamento e enfrentamento de desafios urbanos, em busca de solu??es inovadoras para melhor qualidade de vida e sustentabilidade nas cidades. Em raz?o disso, diversas iniciativas v?m sendo feitas, com tend?ncia de crescimento significativo nos pr?ximos anos, em ?mbito mundial. Entretanto, tais iniciativas podem requerer investimentos p?blicos n?o triviais e falhas podem ter consequ?ncias importantes como perda monet?ria, preju?zo em rela??o ? reputa??o, redu??o de confian?a e aus?ncia de valor p?blico para as partes interessadas. Este trabalho desenvolveu uma metodologia em smart cities, sob a perspectiva de Valor P?blico, composta por um modelo de refer?ncia e um m?todo de avalia??o, avaliados com base na percep??o de 23 representantes da Qu?drupla H?lice (governo, ind?stria, universidade e cidad?os) e nos resultados da aplicabilidade na pr?tica, por meio de uma primeira avalia??o piloto, na cidade ga?cha de Nova Santa Rita. Adota Design Science como paradigma epistemol?gico e Design Science Research como m?todo de pesquisa, unindo rigor te?rico-metodol?gico e utilidade pr?tica para a sociedade. Os resultados mostraram que os artefatos desenvolvidos nessa pesquisa podem ajudar na concep??o e na avalia??o de smart cities de um modo gradual, reunindo melhores pr?ticas consideradas inteligentes, que possibilitam amplia??o e/ou gera??o de Valor P?blico, consistindo numa contribui??o cient?fica de car?ter prescritivo. Entre as contribui??es t?m-se tamb?m o protocolo, as heur?sticas contingenciais e de constru??o, que detalham como esses artefatos foram projetados e desenvolvidos com rigor, sob o paradigma de Design Science, para a resolu??o do problema identificado nessa pesquisa. Constituem conhecimento espec?fico e ?til, gerado a partir da pesquisa, voltado ? pr?tica e ? resolu??o de um problema real, podendo ser usado para futuras evolu??es dos artefatos desenvolvidos na pesquisa e/ou no projeto de novos artefatos, em diferentes contextos e classes de problemas.

Made available in DSpace on 2014-12-17T15:47:55Z (GMT). No. of bitstreams: 1 StephennsonSLG_DISSERT.pdf: 4909051 bytes, checksum: 2a9f94a42d9fc75bb16a1ff239148437 (MD5) Previous issue date: 2011-08-16 / This paper presents a contribution to the international Verified Software Repository effort through the formal specification of the microkernel FreeRTOS real-time system. Such specification was made in abstract level making use of the B method . For thus, properties of the microkernel were chosen and selected as specification requisites, which was constructed centered at the functionalities responsible for the utilization of these properties. This properties weres setting as specification requirements. The specification was constructed modeling the function of microkernel that implement this properties. This work intended to encourage the formal verification of FreeRTOS and also contribute to the formal creation of a microkernel real-time systems, based in FreeRTOS. Furthermore, this model brings a formal documentation point view of the microkernel, demonstrating features and how this internal states is changing. Finally, this work could be an example of specification of the actual system by the B method. / Este trabalho apresenta uma contribui??o para o esfor?o internacional do Verified Software Repository atrav?s da especifica??o formal da biblioteca de sistema de tempo real FreeRTOS. Tal especifica??o foi realizada de forma abstrata utilizando o m?todo B. Para isso, propriedades disponibilizadas por essa biblioteca foram elencadas e selecionadas como requisitos da especifica??o, a qual foi constru?da centrada nas funcionalidades respons?veis pela utiliza??o dessas propriedades. Com a modelagem desenvolvida pretende-se incentivar a verifica??o formal do FreeRTOS e tamb?m contribuir para a cria??o formal de uma biblioteca de sistemas de tempo real baseada na FreeRTOS. Al?m disso, tal modelagem traz uma documenta??o do ponto de vista formal do sistema, demonstrando como ocorrer internamente o seu funcionamento e serve como um exemplo da especifica??o de um sistema real pelo m?todo B.

Made available in DSpace on 2014-12-17T14:07:08Z (GMT). No. of bitstreams: 1 WagnerLT_TESE.pdf: 4295737 bytes, checksum: feb949970c7901b7da571339c28198a9 (MD5) Previous issue date: 2012-02-29 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / Ceramic filters are cellular structures that can be produced by various techniques, among which we highlight the replication method, or method of polymeric sponge. This method consists of impregnating polymeric foam with ceramic slurry, followed by heat treatment, where will occur decomposition of organic material and the sinter of the ceramic material, resulting in a ceramic whose structure is a replica of the impregnated sponge. Ceramic filters have specific properties that make this type of material very versatile, used in various technological applications such as filters for molten metals and burners, make these materials attractive candidates for high temperature applications. In this work we studied the systems Al2O3-LZSA ceramic filters processed in the laboratory, and commercial Al2O3-SiC ceramics filters, both obtained by the replica method, this work proposes the thermal and mechanical characterization. The sponge used in the processing of filters made in the laboratory was characterized by thermogravimetric analysis. The ceramic filters were characterized by compressive strength, flexural strength at high temperatures, thermal shock, permeability and physical characterization (density and porosity) and microstructural (MEV and X-rays). From the results obtained, the analysis was made of the mechanical behavior of these materials, comparing the model proposed by Gibson and Ashby model and modified the effective area and the tension adjusted, where the modified model adapted itself better to the experimental results, representing better the mechanical behavior of ceramic filters obtained by the replica method / Filtros cer?micos processados pelo m?todo da r?plica tem sido objeto de crescentes pesquisas pela versatilidade da t?cnica. O m?todo consiste na impregna??o de uma esponja polim?rica em uma suspens?o cer?mica, seguido de tratamento t?rmico, onde ocorre a decomposi??o do material org?nico e a sinteriza??o do material cer?mico, resultando em um corpo cer?mico, cuja estrutura macrosc?pica ? uma r?plica da esponja impregnada. Filtros cer?micos possuem propriedades especificas que os tornam muito vers?teis, com diferentes aplica??es tecnol?gicas, tais como filtros para metais fundidos e queimadores, tornando esses materiais fortes candidatos para aplica??es ?s altas temperaturas. Neste trabalho foram estudados e desenvolvidos filtros cer?micos dos sistemas Al2O3-LZSA processados em laborat?rio, e de Al2O3-SiC comerciais, ambos obtidos pelo m?todo da r?plica, e caracterizados t?rmica e mec?nicamente. A esponja utilizada no processamento dos filtros feitos em laborat?rio foi caracterizada atrav?s de an?lises t?rmicas (ATG e DrATG). Os filtros cer?micos foram caracterizados mediante an?lises de resist?ncia a compress?o, resist?ncia ? flex?o a altas temperaturas, choque t?rmico, permeabilidade e caracteriza??o f?sica (densidade e porosidade), e microestrutural (MEV e raios X). A partir dos resultados obtidos, foi feita a an?lise do comportamento mec?nico desses materiais, comparando-se o modelo proposto por de Gibson e Ashby e o modelo modificado com a ?rea efetiva e a tens?o corrigida, onde o modelo modificado se adequou melhor aos resultados experimentais, representando melhor o comportamento mec?nico dos filtros cer?micos obtidos pelo m?todo da r?plica

Made available in DSpace on 2014-12-17T14:08:41Z (GMT). No. of bitstreams: 1 DanielAL_DISSERT.pdf: 4502082 bytes, checksum: bb1da1d41014731b0af8c1e4537a4030 (MD5) Previous issue date: 2009-07-05 / The scale is defined as chemical compounds from inorganic nature, initially soluble in salt solutions, which may precipitate accumulate in columns of production and surface equipment. This work aimd to quantify the crystalline phases of scale through the Rietveld method. The study was conducted in scale derived from columns production wells in development and recipients of pigs. After collecting samples of scale were performed the procedure for separations of inorganic and organic phase and preparation to be analyzed at the X-ray Laboratory. The XRD and XRF techniques were used to monitor whether identifying and quantifying crystalline phases present in the deposits. The SEM technique was used to visualize the morphology of the scales and assess their homogeneity after the milling process. XRD measurements were performed with and without milling and with or without the accessory spinner. For quantify crystalline phases the program DBWStools was used. The procedure for conducting the first refinement was instrumental in setting parameters, then the structural parameters of the phases in the sample and finally the parameters of the function profile used. In the diffraction patterns of samples of scale observed that the best measures were those that passed through the mill and used the accessory spinner. Through the results, it was noted that the quantitative analysis for samples of scale is feasible when need to monitor a particular crystalline phase in a well, pipeline or oil field. Routinely, the quantification of phases by the Rietveld method is hardwork because in many scale was very difficult to identify the crystalline phases present / Incrusta??es s?o precipitados de compostos qu?micos de natureza inorg?nica que podem se acumularem em colunas de produ??o e equipamentos de superf?cie. Este trabalho tem como objetivo quantificar as fases cristalinas de amostras de incrusta??o atrav?s do M?todo Rietveld. O estudo foi realizado em produtos de incrusta??o oriundos de colunas de produ??o de po?os em desenvolvimento e recebedores de pigs. Ap?s a coleta das amostras de incrusta??o, realizou o procedimento de separa??o da fase org?nica da inorg?nica e prepara??o das amostras para an?lise. As t?cnicas de difra??o de raios X e espectrometria por fluoresc?ncia de raios X foram utilizadas para monitorar identificando e quantificando as fases cristalinas presentes nas incrusta??es. A t?cnica de microscopia eletr?nica de varredura foi utilizada para visualizar a morfologia das incrusta??es e avaliar sua homogeneidade ap?s o processo de moagem. Na difra??o de raios X foram realizadas medidas com e sem moagem e com e sem utiliza??o do acess?rio spinner. Para quantifica??o das fases cristalinas utilizou o programa DBWStools 2.25. O procedimento para realiza??o do refinamento consistiu primeiramente em ajustar par?metros instrumentais, em seguida ajustou-se os par?metros estruturais das fases contidas na amostra e por ?ltimo os par?metros da fun??o perfil usada. Nos padr?es de difra??o das amostras de incrusta??o observou-se que os melhores resultados foram os das amostras que passaram pela moagem e que utilizaram o acess?rio spinner. Atrav?s dos resultados obtidos, percebem-se que a an?lise quantitativa para as amostras de incrusta??o ? vi?vel quando se deseja fazer o monitoramento de uma determinada fase cristalina em um po?o, duto ou campo de petr?leo. Rotineiramente, a quantifica??o de fases pelo M?todo Rietveld ? mais trabalhoso visto que em muitas incrusta??es houve grandes dificuldades de identificar as fases cristalinas presentes