Orientador: Celia Maria Marinho de Azevedo / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Filosofia e Ciencias Humanas / Made available in DSpace on 2018-08-05T10:25:17Z (GMT). No. of bitstreams: 1 Miranda_Rodrigo_M.pdf: 16165146 bytes, checksum: ccd42f1b5e3969dcdb41c6101d2dca6b (MD5) Previous issue date: 2005 / Resumo: Esta dissertação tem por objetivo estudar a formação da militância negra na cidade de Campinas na década de 1920, identificando pontos de atrito e solidariedade entre seus membros. Partindo das orientações teóricas propostas pela História Cultural, pretende-se compreender os caminhos seguidos por essa militância no interior dos significados construídos pela linguagem para a constituição de identidades raciais. Nesse sentido, elege-se como fonte primária para essa pesquisa o jornal da imprensa negra campineira intitulado Getulino, cujo discurso será analisado a fim de se identificar as representações que nele são construídas. Para se compreender a relação entre o texto desse jornal e as ideologias que circulavam na sociedade da época, serão abordados os debates envolvendo perspectivas para a formação da nação brasileira, notadamente saturados pela idéia de "raça" e "evolução". Pretende-se, ao final deste trabalho, tornar mais claro o processo de formação de identidades no interior de um movimento cultural e social e não fixar uma identidade estanque para essa militância / Abstract: The aim of this M.A. thesis is to approach the formation of the black militancy at the city of Campinas in the 1920's by identifying the points of conflict and solidarity among the militants. Having in mind the theoretical proposals from the New Cultural History, this thesis searches for the meanings emanating from the militants' specific language in their effort to construct racial identities. In this way this research focuses on the pages of a black newspaper the Getulino - whose discourse is analyzed along with its diverse representations. The relationship between the text of this primary source and the ideologies, which impregnated society by then, may be better understood by examining the debates on the formation of the Brazilian nation. As one shall see, the notions of "race" and "evolution" deeply permeated those debates. In conclusion, by refusing to adopt the notion of fixed identities, this thesis allows to visualize the invention of identities within a social and cultural movement / Mestrado / Historia Cultural / Mestre em História

Este estudo tem como hipótese: o desenho de estamparia para a roupa de cama obteve grandes avanços decorrentes da associação dos processos criativos aliados às novas tecnologias. A partir dos anos de 1990 com a implantação dos sistemas informatizados, iniciou-se uma nova fase no desenvolvimento de novos desenhos de estamparias têxteis para roupas de camas no mercado brasileiro. Por meio da evolução tecnológica, a princípio, criou-se uma nova forma de pensar e desenvolver os projetos de design e processos industriais, que levaram algum tempo e muitas horas de treinamentos para as assimilações e compreensões das novas metodologias, agora, de forma digital. Este estudo parte de uma abordagem qualitativa de caráter exploratório onde depreenderá as etapas criativas nos processos de desenvolvimento dos desenhos de estamparias têxteis digitais a partir das implantações dos computadores e seus respectivos softwares gráficos, Este levantamento ocorreu por meio de entrevistas com profissionais de indústrias de produtos têxteis para roupas de cama estampadas para a moda lar e decoração, que utilizam em seus processos de beneficiamentos têxteis, as estamparias tradicionais e as novas impressões digitais, ambas em tecidos planos, com apresentação das etapas dos processos criativos no desenvolvimento dos desenhos de estamparias têxteis na região da Grande de São Paulo. Apresenta-se um projeto de desenhos digitais têxteis de repetições (rapports), com estampas coordenadas em suas cores e traços e impressas com a técnica digital direta para produtos de roupas de cama com temas referentes à cultura brasileira. A importância dos processos digitais para as criações dos desenhos de estamparias têxteis proporcionou uma alta demanda de consumo, oferecendo maior rapidez nos aspectos de desenvolvimento com novas opções criativas e infinitas possibilidades de cores e desenhos, principalmente nos processos de impressões digitais diretas (inkjet) sobre tecidos planos com fibras de algodão / This study have as possibility: the print design for bedline scored big advances resulting of association of creative´s process allieds the news technologies. From the years of 1990 with the deployment of information systems by means of computers, began a new phase in the development of new stamps designs textiles for bedding in the Brazilian market. By means of technological change, the principle has created a new way of thinking and develops design projects and industrial processes, which took some time and many hours of training for the assimilations and understandings of the new methodologies, now digitally.This study is part of a qualitative approach of exploratory character where obvious that creative steps in the processes of development of textile digital stamps designs from computer deployments and their respective graphics software, through interviews with professionals in industries of textile products for stamped bedding for fashion and home decoration, which use in their processed textile processes the traditional stamps and new prints , both in wovens, showing the stages of the creative processes in the textile stamps designs developments in the region of greater São Paulo. Will be presented a project of digital textile designs of repetitions (rapport), with prints coordinates in their colors and strokes and printed by direct digital technique for bedding products with themes relating to the brazilian culture. The importance of digital processes to the creations of drawings of textile stamps provided a high consumer demand, offering greater speed on aspects of developments with news creatives options and endless possibilities of colors and designs, mainly in cases of digital direct prints (inkjet) on flat woven fabrics with cotton fibers

Este projeto verificou a influência dos produtos químicos utilizados no processo de preparação de tecidos planos de algodão, para posterior estampa por processo digital com corantes reativos. No processo de preparação verificou-se a influência dos fatores quantidade de espessante, anti-migrante, álcali, agente higroscópico e cloreto de sódio (NaCl), utilizou-se um planejamento fatorial 25, cinco pontos centrais, para estudo dos ensaios, tendo como resposta a intensidade colorística (K S-1) das cores amarelo, vermelho, azul e preto, avaliando os índices de solidezes à água e à fricção. Baseando-se no modelo matemático obtido, aplicou-se receita otimizada com economia de 35 g L-1 e 45 g L-1 de espessante e NaCl, respectivamente. A aplicação gerou maiores valores de K S-1 em três das quatro cores estudadas. Somente a cor azul apresentou menor valor, porém com uma diferença de apenas 0,06 unidades, considerada não significativa. Nas solidezes testadas, a nota mínima obtida foi de 4/5, considerada como satisfatória em uma escala de 1 a 5, onde 1 é o pior resultado e 5 o melhor, ou seja, não houve detrimento nos índices de solidezes testados na receita otimizada em relação à receita de maior K S-1 do planejamento / This project verified the influence of the chemicals used in the process of preparation of cotton fabrics, for subsequent digital printing with reactive dyestuff. In the preparation process, the influence of the factors \'amount of thickener\', \'anti-migrant\', \'alkali\', \'hygroscopic agent\' and \'sodium chloride (NaCl)\' were used, being the answer coloristic intensity (K S-1) of the yellow, red, blue and black colors, evaluating the color fastness to water and friction. Based on the obtained mathematical model, an optimized recipe with savings of 35 g L-1 and 45 g L-1 of thickener and NaCl, respectively, was applied. The application generated higher values of K S-1 in three of the four colors studied. Only the blue color had lower value, but with a difference of only 0.06 units, considered not significant. In the solids tested, the minimum score obtained was 4/5, considered as satisfactory on a scale of 1 to 5, where 1 is the worst result and 5 the best, that is, there was no detriment in the color fastnesstested in the optimized recipe in relation to the recipe of greater K S-1 of the planning

A utilização da quitosana como fixante de corantes tem se mostrado relevante, devido a sua estrutura química que é responsável pelas suas propriedades biodegradável e antibacteriana. O presente estudo teve como objetivo principal utilizar a quitosana para auxiliar na fixação de corantes pigmentados utilizados na estamparia digital. Também foi testada a carboximetilcelulose. A quitosana foi dissolvida em ácido acético 2% (v/v) nas concentrações de 5, 10, 15 e 22,2 g/L, enquanto a carboximetilcelulose foi dissolvida em água na concentração de 14,28 g/L Os polímeros foram aplicados como pré e pós tratamentos em malha de algodão por dois processos diferentes, via Foulard e por estamparia de quadros. A presença dos polímeros impregnados nas fibras de algodão foi avaliada por Microscopia Eletrônica de Varredura (MEV). As amostras de malha tratadas e não tratadas (controle) foram lavadas por 54 vezes simulando o uso de uma camiseta durante um ano e avaliadas em espectrofotômetro quanto à solidez da cor a lavagem utilizando os parâmetros escala cinza e sistema CIELAB E*. Os resultados obtidos mostraram que a utilização da quitosana e da carboximetilcelulose como pós-tratamento melhoraram o desempenho da solidez da cor a lavagem em 64% quando avaliada por CIELAB E* e 68% respectivamente quando avaliada por escala cinza. As amostras com aplicação de quitosana e carboximetilcelulose como pré-tratamentos apresentaram valores menores de solidez, quando comparadas às amostras pós-tratadas / The use of chitosan as binder has become relevant due to its chemical structure which is responsible for its biodegradable and antibacterial good. The present study is aimed to the use of chitosan to aid in the fixation of pigmented dyes used in digital printing. A carboxymethylcellulose was also tested. The chitosan was dissolved in 2% (v / v) acetic acid at the concentrations of 5, 10, 15 and 22.2 g / L, while a carboxymethylcellulose was dissolved in water at 14.28 g / L. applied as pre and post treatments in cotton mesh by two different processes, Foulard and silk-screen. The presence of polymers impregnated in the cotton fibers was evaluated by Scanning Electron Microscopy (SEM). The treated and untreated mesh samples were washed 54 times simulating the use of a T-shirt for one year and evaluated in spectrophotometer for color fastness to wash, using the CIELAB E * system. The results showed that the use of chitosan and carboxymethylcellulose as a post-treatment improved the color wash performance in 64% when evaluated by CIELAB E * and 68% when evaluated by gray scale. The samples with application of chitosan and carboxymethylcellulose as pre-treatments presented lower values of color fastness, when compared to the post-treated samples

Este trabalho avaliou a aplicação das tecnologias de prototipagem rápida por Impressão 3D e FDM (Fused Deposition Modeling) na produção de moldes rápidos. Esta avaliação foi feita com base nas qualidades das peças obtidas por vazamento nos moldes produzidos, bem como nas limitações encontradas em suas utilizações. Foram estabelecidas as principais diferenças do ponto de vista de qualidade, custos, tempos gastos e praticidade. Foram construídos moldes para peças que contemplando vários graus de dificuldades. Para cada ferramental foram obtidos lotes de peças, através dos quais foram analisadas e comparadas as qualidades dos protótipos. / This work evaluated the application of the Rapid Prototyping technologies 3D printer and FDM (Fused Deposition Modeling) in the rapid manufacturing of molds. This evaluation is based on the quality of the parts molded, as well as in the limitations found in the molds applications. As result the main differences related to quality, and usability was established. The molds produced parts with different degrees of geometric difficulties. For each mold, a few prototypes were produced and their qualities compared.

Orientador: Anna Paula Silva Gouveia / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Artes / Made available in DSpace on 2018-08-21T16:12:46Z (GMT). No. of bitstreams: 1 Gouvea_TerezinhaAugusta_M.pdf: 4765112 bytes, checksum: dbcf9ddf6f73acc99fffbc2c533e94f9 (MD5) Previous issue date: 2007 / Resumo: A pesquisa apresenta os percursos de um fazer artístico e explora um saber de qualidade subjetiva e as reflexões a partir desta prática. A produção artística é composta por litografias e frottages corporais; são impressões pessoais sobre um território frágil: o corpo, o território humano. O corpo e a pele são referências reais, na litografia: meu corpo entintado pressionado sobre a pedra litográfica imprime as marcas físicas e a textura da pele, e nas frottages corporais, o corpo é decalcado na superfície plana do papel. São experiências intransferíveis para construir as imagens, com a presença física do referente, em que a escala real do corpo é preservada nos dois procedimentos. A prática artística referenciou as reflexões e as relações com determinados artistas, que ocorrem pela afinidade dos procedimentos em adotar a impressão de uma presença real e com a fotografia, por trabalhar com esta incidência em seu momento constitutivo. A pele é o limite do meu território com o outro e com o mundo, abriga e delineia a individualidade. O tato é um sentido de proximidade, pois, é da necessidade de aproximação com o outro que afirmamos nossa própria existência, porque o tato nos permite perceber que a vida tem profundidade e contorno, torna tridimensional nosso sentido do mundo e de nós mesmos. O contorno deste território frágil, a pele, é nossa fronteira, que nos protege e nos expõe / Abstract: The research presents the ways of artistic making and explores a subjective kind of knowing and the corresponding reflections arising from this practice. The artistic production is composed of lithographies and body frottages, which are personal impressions about a fragile territory: the body, the human territory. In lithography, the body and the skin are real references, that is, my inked body, pressed against a lithographic stone, imprints the physical marks and texture of the skin, whereas in body frottages, the body is traced onto a flat paper surface. These experiences are unique, allowing the creation of body images, with the physical presence of the referent, so as to preserve the real scale of the body in both procedures. The artistic practice has provided a reference for the reflections and the relations with certain artists, which occur through the affinity of the procedures in adopting the impression of a real presence and with photography, as it works with this incidence at the moment of the creation. The skin is the edge of my territory with the next person and with the world, sheltering and delineating one¿s individuality. The sense of touch is about proximity because we affirm our own existence out of the need to become closer to one another, that is, the sense of touch allows us to understand that life has depth and boundaries, making our sense of the world and our sense of ourselves tridimensional. The boundary of this fragile territory, the skin, is our frontier, which protects us and exposes us / Mestrado / Artes / Mestra em Artes

Camolution is a project that explores the camouflage pattern in a textile designcontext. The motive is to reinterpret an obsolete concealment function andinstead, to hide and reveal visual textile aspects within the pattern. Theprimary aim of this work is to develop a contemporary camouflage patterncollection of printed and knitted textiles, and to explore the concealmentfunction through visual deceptions. The patterns were developed witha method that uses a selection of rules in colour contrasts,style influences and textile proprieties to design a series of patternexperiments. The final pattern designs were screen printed, digitalprinted and knitted, and applied as garment prototypes. This part wasdone in collaboration with the fashion brand Björn Borg. The result setsout a collection of textiles and clothes connected by three differentconcepts of misled vision. It was found that the camouflage function in thiswork was an efficient tool to advertise the brand symbols within the textiles.This work proposes an alternative design method of using the camouflageconcept in textile design, contributing with new expressions, techniquesand qualities.

During a make ready in a web offset press it is important to produce as little waste as possible. Reducing the amount of waste yields savings of both time and money. One way to do faster make ready is to preset the ink keys of the press before it is started. This diploma work, carried out at Sörmlands Grafiska Quebecor AB in the city of Katrineholm, Sweden, examines how the ink key preset may be done using low- resolution digital images stored in the vendor independent data format CIP3 PPF. The press that has been used has a control interface that is not accessible from the outside. This feature is shared with a lot of older presses. Therefore several methods of how to present and collect ink key settings using offline methods have been tested. To investigate the relationship between mean coverage over one ink zone and its corresponding ink key opening data from a 32-page web offset press has been collected. The mean coverage was taken from the CIP3 PPF files that were related to the collected print jobs. The relationship that was found between the coverage and the opening can be described with a transfer curve (one curve per printing unit and side). Using as few as three print jobs of high quality (density and dot gain within given tolerances) a first set of transfer curves may be created. These are close to the real ones and using print jobs where the ink key presettings have been calculated the transfer curves may be calibrated to perform better and better presetting calculations. To generate and calibrate the transfer curves and to extract the mean coverage values from the CIP3 PPF files and recalculate these to presetting values a computer program called IKPS (Ink Key Presetting System) was made. IKPS was made using MATLAB from MathWorks INC. IKPS have been tested for ink key presetting during a number of print jobs. Even though the transfer curves were uncalibrated the system performed well. As comparison the results from a plate scanner was used. Even if online transfer of the presetting values is preferable the big advantage with the IKPS is that it is an offline system and therefore it is possible to implement it on any kind of offset press, old as well as new. In order to generate reliable transfer curves the print jobs used for calibration must be of high printing quality and representative for that particular press. How the ink key presettings are presented in the press control room depends on what kind of press it is. IKPS works with CIP3 PPF files as well as low-resolution cmyk tiff files.

Coated solid bleached board belongs to the top-segment of paperboards. One important property of paperboard is the printability. In this diploma work a specific print defect, oriented mottle, has been studied in association with Iggesund Paperboard. The objectives of the work were to develop a method for analysis of the dark and light areas of oriented mottle, to analyse these areas, and to clarify the effect from the print, coating and paperboard surface related factors. This would clarify the origin of oriented mottle and predict oriented mottle on unprinted paperboard. The objectives were fulfilled by analysing the areas between the dark halftone dots, the amount of coating and the ink penetration, the micro roughness and the topography. The analysis of the areas between the dark halftone dots was performed on several samples and the results were compared regarding different properties. The other methods were only applied on a limited selection of samples. The results from the study showed that the intensity differences between the dark halftone dots were enhanced in the dark areas, the coating amount was lower in the dark areas and the ink did not penetrate into the paperboard. The other results showed that areas with high transmission corresponded to dark areas, smoother micro roughness, lower coating amount and high topography. A combination of the information from these properties might be used to predict oriented mottle. The oriented mottle is probably an optical phenomenon in half tone prints, and originates from variations in the coating and other paperboard properties.

Various facets of direct digital manufactured (DDM) microwave packages are studied. The rippled surface inherent in fused deposition modeling (FDM) fabricated geometries is modeled in Ansoft HFSS, and its effect on the performance of microstrip transmission lines is assessed via simulation and measurement. The thermal response of DDM microstrip transmission lines is analyzed over a range of RF input powers, and linearity is confirmed over that range. Two IC packages are embedded into DDM printed circuit boards, and their performance is analyzed. The first is a low power RF switch, and the second is an RF front end device that includes a low noise amplifier (LNA) and a power amplifier (PA). The RF switch is shown to perform well, as compared to a layout designed for a Rogers 4003C microwave laminate substrate. The LNA performs within datasheet specifications. The power amplifier generates substantial heat, so a thermal management attempt is described. Finally, a capacitively loaded 6dB Wilkinson power divider is designed and fabricated using DDM techniques and materials. Its performance is analyzed and compared to simulation. The device is shown to compare favorably to a similar device fabricated on a Rogers 4003C microwave laminate using traditional printed circuit board techniques.