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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
601

Corpo interminável e outros corpos / -

Fernando Cardoso Saiki 29 September 2015 (has links)
corpo interminável e outros corpos apresenta uma série de experimentos poéticos que buscam investigar as possibilidades gráficas da técnica japonesa de xilogravura à base d\'água como modo de expressão na produção atual de estampas. De modo a estabelecer um diálogo entre diferentes perspectivas, o estudo foi iniciado no Departamento de Artes Visuais da Escola de Comunicação e Artes da Universidade de São Paulo e continuado no Departamento de Xilogravura da Universidade de Artes de Tóquio. Resultado de uma pesquisa empírica, que se apoia em observações e experiências vividas, o trabalho resulta de inquietações acerca de um corpo ficcionado e coletivo, que cresce pelas bordas e se desdobra por propagação. Composto por linhas de intensidades variáveis, esse corpo ocupa a superfície conforme combinações harmônicas e multiplicáveis. / endless body and other bodies presents a series of poetic experiments that seek to investigate the graphic possibilities of the Japanese woodblock printing, as a means of expression within the production of printmaking nowadays. In order to establish a dialogue between two very different cultural perspectives, this study has taken place at both the Visual Arts Department of the University of São Paulo and the Printmaking Department of the Tokyo University of the Arts. This essentially empirical research explores the concept of corpus in a dual meaning. Both in a literal sense as the predominance of the human figure in the works, and in a constructed sense referring to an ever-expanding universe of sources. By combining lines of different shapes and intensities, the bodies in the works aim to fill harmoniously the surface through multipliable combinations.
602

Do impresso à hipermídia: reconfiguração do jornalismo na era da comunicação digital

Nunes, Janaina de Oliveira 03 April 2009 (has links)
Submitted by Renata Lopes (renatasil82@gmail.com) on 2017-02-17T16:50:11Z No. of bitstreams: 1 janainadeoliveiranunes.pdf: 1638103 bytes, checksum: 1db7c53ed3c7e922c59d7178cc853709 (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-02-20T18:04:12Z (GMT) No. of bitstreams: 1 janainadeoliveiranunes.pdf: 1638103 bytes, checksum: 1db7c53ed3c7e922c59d7178cc853709 (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-02-20T18:04:29Z (GMT) No. of bitstreams: 1 janainadeoliveiranunes.pdf: 1638103 bytes, checksum: 1db7c53ed3c7e922c59d7178cc853709 (MD5) / Made available in DSpace on 2017-02-20T18:04:29Z (GMT). No. of bitstreams: 1 janainadeoliveiranunes.pdf: 1638103 bytes, checksum: 1db7c53ed3c7e922c59d7178cc853709 (MD5) Previous issue date: 2009-04-03 / Partindo do pressuposto de que as tecnologias da comunicação podem desencadear alterações sociais e de linguagem, busca-se estudar as mudanças ocorridas nas formas de produção e consumo do jornalismo. Num primeiro momento, são tratadas as características da sociedade da informação, tomando como base argumentos teóricos de Lévy, Castells, McLuhan, Kerckhove, entre outros. Em seguida, discute-se as influências da cultura digital no jornalismo impresso e a tendência à convergência de conteúdos com o on-line, a partir de Marcondes Filho, Ricardo Noblat, Phillip Meyer e Lourival Sant’Anna. Também foi feita uma reflexão sobre como a Web 2.0 e o aumento da participação dos usuários como “jornalistas cidadãos” vêm modificando as práticas do jornalismo, tendo como referencial textos de Francis Pisani, Mark Briggs, Luciana Mielniczuck, Pollyana Ferrari, Marcos Palacios e Cláudia Quadros. Para exemplificar os apontamentos levantados, parte-se para a análise de conteúdo, tendo como objetos o jornal O Globo e o site “Globo Online”. Após análises dos indicadores encontrados, em linhas gerais, chega-se à conclusão de que o a demanda por informação é mais importante do que o suporte em que ela será apresentada. Sabendo disso, empresas de comunicação estão investindo na diversificação da oferta de informação on-line, explorando cada vez mais as potencialidades da hipermídia. / Assuming that the technologies of communication can trigger social changes and language, seeks to study the changes in forms of production and consumption of journalism. Initially, the features are treated in the information society, on the basis of theoretical arguments Lévy, Castells, McLuhan, Kerckhove, among others. Then, it discusses the influences of culture in the digital print journalism and the trend to convergence of content with the on-line, from Marcondes Filho, Ricardo Noblat, Phillip Meyer and Lourival Sant'Anna. It was a reflection on how Web 2.0 and increased participation of users as "citizen journalists" are changing the practice of journalism, taking as reference texts by Francis Pisani, Mark Briggs, Luciana Mielniczuck, Pollyana Ferrari, Marcos Palacios and Claudia Tables To illustrate the notes collected, used the methodology of content analysis. The study aimed at the newspaper O Globo and the site Globo Online. After analysis of the indicators found, in general, come to the conclusion that to demand for information is more important than the medium in which it appears. Knowing this, the communication companies are investing in the diversification of supply of information online, increasingly exploring the potential of hypermedia.
603

Litografia artística brasileira : Lotus Lobo e Darel Valença Lins / Brazilian prints - litography : Lotus Lobo and Darel Valença Lins

Gorino, Vitor Hugo, 1982- 26 August 2018 (has links)
Orientador: Maria de Fátima Morethy Couto / Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Artes / Made available in DSpace on 2018-08-26T02:09:23Z (GMT). No. of bitstreams: 1 Gorino_VitorHugo_D.pdf: 11718785 bytes, checksum: e51fc99d7027464b8bea5a8af7ad9e28 (MD5) Previous issue date: 2014 / Resumo: O presente trabalho analisa a produção litográfica de Darel Valença Lins (1924 -) e Lotus Lobo (1948 - ) das décadas de 1970 e 1980. Estes artistas desempenharam papeis de destaque na produção e no fomento da litografia artística no Brasil a partir de contextos e referenciais distintos, no Rio de Janeiro e em Minas Gerais, respectivamente. Suas produções autorais apresentam novas direções ao passo que incorporam imagens apropriadas em suas gravuras e, ao mesmo tempo trabalham com novas soluções processuais para as impressões, de forma que suas obras enquadrem-se dentro do grupo de artistas que investigam a gravura como meio expressivo ambivalente, caracterizado pela reprodução e pela multiplicação da imagem. Suas litografias se apresentam de tal forma, que reajustam e recompõem as imagens apropriadas recodificando-as, gerando uma nova construção na qual o registro original não mais as representa, mas também não se apaga por completo, semelhantemente ao que fazem os processos cognitivos de memória / Abstract: This work analyses the artwork of Darel Valença Lins (1924 -) and Lotus Lobo (1948- ) through the 1970's and 1980's. These artists played top roles in the artistic application and teaching of the lithographic printing process in Brazil, specifically in Rio de Janeiro and Minas Gerais respectively. Their personal work show new artistic investigation, placing them among the group of artists that investigate their medium technically and conceptually / Doutorado / Artes Visuais / Doutor em Artes Visuais
604

O ensino privado em Pelotas na propaganda impressa: séculos XIX, XX, XXI / Private education in Pelotas in print advertising: XIX, XX, XXI

Neves, Helena de Araujo 30 March 2012 (has links)
Made available in DSpace on 2014-08-20T13:48:09Z (GMT). No. of bitstreams: 1 Helena de Araujo Neves_Tese.pdf: 58849522 bytes, checksum: b12f651feecf260776407a01739a5e51 (MD5) Previous issue date: 2012-03-30 / This thesis is situated within the history of education , linked to the line of Philosophy and History of the Graduate Program in Education of the Federal University of Pelotas Education . His aim was to investigate the trajectory of private education in Pelotas , a city located south of the Rio Grande do Sul, in the period from the late nineteenth century and the beginning of the XXI century. For this , we used as the primary source document printed from private primary and secondary schools , primary and secondary education advertisements, published in the press . The aim of this thesis is to prove that the private schools in Pelotas was hitherto consisting of three cycles . The first began in the second half of the nineteenth century , characterized by the education offered by an owner or by a group of teachers who organized education in a more sophisticated process than existing spare classes in the city . It was an eminently private phase, characterized by a clearly market capitalist system . The second cycle , highlighted by the hegemony of teaching faith that abolished the previous process. At that stage , there was a more effective organization , with tables arranged and trained to work in the teaching profession as a vocation . In addition , institutions with a solid management structure , specificity as " entrepreneurs " of the first cycle had not been created . In the third cycle , in turn , there was the return of the business of education , now based in a corporate capitalism that put to the test proposed an education along the lines offered by denominational - which required this capitalist stance. It was found then that some religious organizations have been unable to keep up with this market competition , resulting in the closure of an important confessional school of Pelotas and selling to another business of education . Based on the above , it was found also that the religious institutions shall introduce into pellets having the differential in secondary education which corroborated its hegemony throughout most of the twentieth century . Past hundred years, the high school was also the predominant actions of schools run by business education focus. This level of education that prepares students for access to higher education , did so with the schools run by entrepreneurs teaching consolidate its participation in the educational scenario identified in the third cycle . Now with regard to action of the institutions , it was found that while the schools run by education entrepreneurs offer modernity and constant concern with the results of their students , the management offered confessional tradition. It was identified , although private institutions found throughout the periodization self - regulated by dictating the use of advertisements and thus constituting the quality standard of the local private school. Thus , it was realized that the private school print advertising has established itself as a cultural practice of the nineteenth century becoming part of the educational marketing strategies of the XX and XXI centuries . This was therefore a potential source to obtain data on the trajectory of private education in pellets thus being witness to the constitution and legality of the sphere of education in the city. / Esta tese situa-se no âmbito da História da Educação, vinculada à linha de Filosofia e História da Educação do Programa de Pós-Graduação em Educação da universidade Federal de Pelotas. Seu objetivo foi pesquisar a trajetória do ensino privado em Pelotas, município localizado ao sul do Rio Grande do Sul, no período compreendido entre o final do século XIX e o principio do século XXI. Para isso, utilizou como principal fonte documental propagandas impressas das escolas privadas de ensino primário e secundário, fundamental e médio, divulgadas na imprensa. O intuito desta tese é o de comprovar que o ensino privado de Pelotas foi até então, constituído por três ciclos. O primeiro iniciou na segunda metade do século XIX, caracterizando-se pela educação ofertada por um proprietário ou por um grupo de docentes que organizaram a educação em um processo mais sofisticado do que as aulas avulsas existentes na cidade. Foi uma fase eminentemente privada, caracterizada por um sistema claramente capitalista mercantil. Já o segundo ciclo, destacou-se pela hegemonia do ensino confessional que extinguiu o processo anterior. Nessa fase, existiu uma organização mais efetiva, com quadros dispostos e treinados para atuar no magistério como vocação. Além disso, foram criadas instituições com uma estrutura solida de gestão, especificidade que os empresários do primeiro ciclo não tiveram. No terceiro ciclo, por sua vez, verificou-se a volta dos empresários da educação, agora baseados em um capitalismo empresarial, que colocou à prova a proposta de uma educação nos moldes ofertados pela confessionalidade o que exigiu desta uma postura capitalista. Verificou-se, então que algumas organizações religiosas não tiveram condições de acompanhar essa concorrência de mercado, resultando no fechamento de uma importante escola confessional de Pelotas e na venda de outra para empresários da educação. Com base no exposto, verificou-se, ainda, que as instituições confessionais instauram-se em Pelotas tendo no ensino secundário o diferencial que corroborou com a sua hegemonia durante quase todo o século XX. Passados cem anos, o ensino médio também foi o foco preponderante das ações das escolas geridas pelos empresários da educação. Esse nível de ensino, que prepara o aluno para o acesso ao ensino superior, fez portanto, com que as escolas geridas pelos empresários do ensino consolidassem a sua participação no cenário educacional identificado no terceiro ciclo. Já com relação a atuação das instituições, constatou-se que, enquanto as escolas administradas pelos empresários da educação oferecem modernidade e preocupação constante com os resultados de seus alunos, a gestão confessional ofertou tradição. Identificou-se, ainda que as instituições privadas encontradas ao longo de toda a periodização se auto-regulavam por meio do uso das propagandas ditando e constituindo, assim, o padrão de qualidade do ensino privado local. Dessa forma, percebeu-se que a propaganda impressa escolar privada se impôs como uma pratica cultural do século XIX tornando-se parte das estratégias de marketing educacional dos séculos XX e XXI. Essa foi, portanto, uma fonte potencial para se obter dados sobre a trajetória do ensino privado em pelotas sendo, assim, testemunha da constituição e da legalidade dessa esfera de ensino na cidade.
605

Additiv tillverkning i metall och topologioptimering

Bousquet, Anna January 2017 (has links)
This thesis project was conducted as a case study at Scania CV, a manufacturer of trucks, buses and industrial and marine engines. The project aimed to investigate how topology optimization can be used to design end products for metal additive manufacturing (AM). The main research questions for the project was: How can topology optimization be used to design parts for metal additive manufacturing? Which gave rise to further research questions: Which parts are suitable for metal additive manufacturing? Which factors has to be considered when designing end products for metal additive manufacturing? The main benefits of additive manufacturing revealed in the literature were short lead time, possibility to manufacture complex geometries and consolidate multiple parts into a single part. The applications of metal additive manufacturing found in the literature included prototypes and end products as well as tools and spare parts. Small, complex geometries which are expensive to manufacture traditionally due to expensive tooling or low volumes are most likely to be suitable for metal additive manufacturing. Parts where trade-offs have to be made between manufacturing cost and performance could also be interesting to investigate for AM. The build size of the selected machine is a limiting factor when choosing parts and the build direction of the part, the need for support material during manufacturing and post processing are important to consider when designing parts for metal AM. The case study was performed based on Design for Additive Manufacturing (DFAM), a method for designing parts for AM. DFAM consists of deciding the specifications for the part, consolidate parts if possible, optimize the geometry of the part and make sure it is possible to manufacture. Two parts were optimized with topology optimization during the case study and the resulting geometries were imported to Catia in order to create CAD-models. The results from the case study showed it was possible to automatically create CAD-models based on the resulting geometries from topology optimization. However the automatic CAD-models are not suitable for manufacturing of end parts. But the case study indicates a weight reduction of about 30 % seems to be possible for topology optimization combined with AM even for parts already optimized for low weight but adapted for traditional manufacturing methods. Reducing the overall weight of trucks is important since the carrying capacity is important for customers when choosing vehicles for transportation and the gross vehicle weight is regulated by laws. This makes topology optimization and metal AM a highly interesting area for further investigation. As for now, small, complex parts which are traditionally expensive to manufacture are most likely to be profitable for manufacturing of end parts with metal AM. / Arbetet har utförts som en fallstudie på Scania CV som tillverkar lastbilar, bussar samt industri- och marinmotorer. Syftet med projektet var att undersöka hur topologioptimering kan användas för konstruktion av slutprodukter som ska tillverkas med additiv tillverkning (AM) i metall. Utifrån det togs tre frågeställningar fram som låg till grund för projektet. Huvudfrågeställningen var Hur kan topologioptimering användas vid konstruktion av artiklar för additiv tillverkning i metall? För att kunna svara på det krävdes mer kunskap om additiv tillverkning vilket ledde till följande två frågeställningar: Vilka produkter är lämpliga för additiv tillverkning i metall? samt Vilka faktorer behöver tas hänsyn till vid konstruktion för direkttillverkning av slutprodukter i metall med additiv tillverkning? De största fördelarna med additiv tillverkning som framkom i litteraturen var korta ledtider, möjlighet att tillverka komplexa geometrier och slå samman flera delar till en enda. Användningsområden för additiv tillverkning var allt från prototyper till serietillverkning samt tillverkning av verktyg och reservdelar.  De artiklar som är lämpliga att tillverka med AM är de som är dyra att tillverka traditionellt på grund av komplex geometri, dyra verktyg eller låga volymer. Men även artiklar som får ge avkall på funktion för att tillverkas eller har långa ledtider och höga lagerkostnader. Andra faktorer som är viktiga att tänka på är byggytans storlek för den maskin som ska användas samt vilken byggriktning som väljs, behovet av stödmaterial vid tillverkning och efterbearbetning av utskriven detalj. En fallstudie genomfördes baserat på Design for Additive Manufacturing som är en metod för att konstruera artiklar för AM. Metoden går ut på att bestämma vad komponenten ska ha för funktioner och prestanda, slå samman eventuella delkomponenter, optimera utformningen och sedan kontrollera att den är möjlig att tillverka. Under fallstudien undersöktes två fästen med topologioptimering och resultaten importerades till Catia för att skapa CAD-modeller. Resultatet påvisade att det är möjligt att skapa en automatisk CAD-modell i Catia utifrån resultatet från topologioptimeringen. Däremot blir resultatet inte tillräckligt bra för att i nuläget kunna använda den automatiska modellen för tillverkning av slutprodukter. Resultatet från fallstudien tyder dock på en viktminskningspotential runt 30 % även för redan lättviktsoptimerade artiklar anpassade för andra tillverkningstekniker vid anpassning till AM. Eftersom lastkapaciteten är en avgörande faktor för kundens val av fordon samt för att uppfylla gällande lagstiftning kring fordonets totalvikt och minska miljöpåverkan så är lättviktsoptimering av alla ingående komponenter ett viktigt utvecklingsområde. Därmed är även topologioptimering och AM intressant att undersöka vidare. För att AM i dagsläget ska vara lönsamt för tillverkning av slutprodukter rekommenderas i första hand små, geometriskt komplexa artiklar som är dyra att tillverka traditionellt på grund av exempelvis höga verktygs- eller bearbetningskostnader eller små volymer.
606

The Language of Advertising : A qualitative study of gender representation in print advertisements.

Jörninge, Fridha January 2014 (has links)
The purpose of this essay was to investigate and highlight the strengths and shortcomings of Critical Discourse Analysis and Feminist Critical Discourse Analysis when used as an analytical tool. By comparing the representation of women and men in print advertisements, and how there may be a difference in language being used to describe both genders, including the use of sexist language, a critique of CDA and FCDA could be established. In order to establish this all areas of the advertisements had to be taken into account, including layout and images used. The ads were read and interpreted through CDA and FCDA in order to investigate and identify the strengths, and any shortcomings, of the theories. The investigation shows that, although CDA and FCDA scholars could argue that women tended to be described in a more sexist manner overall, a counterargument could also be made on most accounts. The argument which supported sexism was especially observable through how women’s bodies were more often fragmented in images and positioned in more sexual positions, but also how the advertisements not only reinforced stereotypes as well as using distinctly negative language in their descriptions. However, gender stereotyping against men in the ads was also prevalent, which allowed an argument against CDA and FCDA’s theories about existing power struggles. Although the investigation did manage to substantiate the critique regarding how CDA and FCDA view the differences in gender representations, therefore fulfilling its aim, perhaps a more accurate result would have been possible to achieve if more print advertisements had been used in the investigation. However, this was not possible due to the qualitative nature of the investigation.
607

Colour proof quality verification

Sundell, Johanna January 2004 (has links)
BACKGROUND When a customer delivers a colour proof to a printer, they expect the final print to look similar to that proof. Today it is impossible to control if a match between proof and print is technically possible to reach at all. This is mainly due to the fact that no information regarding the production circumstances of the proof is provided, for instance the printer does not know which proofer, RIP or ICC-profile that was used. Situations where similarity between proof and print cannot be reached and the press has to be stopped are both costly and time consuming and are therefore wished to be avoided. PURPOSE The purpose of this thesis was to investigate the possibility to form a method with the ability control if a proof is of such good quality that it is likely to produce a print that is similar to it. METHOD The basic assumption was that the quality of a proof could be decided by spectrally measuring known colour patches and compare those values to reference values representing the same patches printed at optimal press conditions. To decide which and how many patches that are required, literature and reports were studied, then a test printing and a comparison between proofing systems were performed. To be able to analyse the measurement data in an effective way a tool that analyses the difference between reference and measurement data was developed using MATLAB. RESULT The result was a suggestion for a colour proof quality verification method that consists two parts that are supposed to complement each other.The first one was called Colour proofing system evaluation and is supposed to evaluate entire proofing systems. It consists of a test page containing colour patches, grey balance fields, gradations and photographs. The second part is called Colour proof control and consists of a smaller set of colour patches that is supposed to be attached to each proof. CONCLUSIONS The method is not complete since more research regarding the difference between measurement results and visual impression is needed. To be able to obtain realistic tolerance levels for differences between measurement- and reference data, the method must be tested in every-day production. If this is done the method is thought to provide a good way of controlling the quality of colour proofs.
608

Mixi Print AB / Mixi Print AB

Isén, Daniel January 2005 (has links)
Detta projekt är en hemsida för Mixi Print AB. Den ska fungera som en framsida för företaget ur ett digitalt synsätt, en plats där det går att få fram information om företaget och dess produkter snabbt och enkelt. Jag har arbetat med programmet flash eftersom det ger möjlighet till bra och enkel men ändå fräsch design. Till detta så har jag kombinerat php och MySQL för att kunna koppla det till en databas. Som en del i projektet så har jag också reflekterat över grafiska bitar på Internet jämfört med hur det var innan. / Detta är en reflektionsdel till en digital medieproduktion.
609

Da previsão do tempo às catástrofes: os valores-notícia dos acontecimentos climáticos no jornal Zero Hora (RS) / From weather forecast to catastrophic events: the news values of climatic events in the newspaper Zero Hora (RS)

Rubin, Anaqueli 01 December 2011 (has links)
In this study we aim to analyse the role of journalism in creating certain representations of the relationship between man and climate, especially concerning the climate change scenario. We assume that the news is a specific type of symbolic system and configures itself in a cultural construction built through the news values that work with maps of representation. Our main goal is to analyse the climate in Zero Hora, in its various editorials, based on news values to show how it happens in the news the relationship between man and climate. The specific objectives of the research focus on characterizing climate events for journalism, defining concepts such as weather and climate, to understand historically how the relationship between the media and climate and between journalism and meteorology. We present a mapping of climate events in Zero Hora through a quantitative survey of however qualitative approach to identify news values and their meanings based on certain aspects from the theory of Representations using contributions from Patrick Charaudeau, Stuart Hall and Cristina Ponte. We also conducted interviews with professionals in meteorology and journalism field in order to understand how they interact with the subject. Our study aimed to cover from the news that involve the variable weather in the day-by-day life up to the ones that deal with long term climate changes. This was sourced from the newspaper Zero Hora, in Rio Grande do Sul. We analysed 41 editions and mapped the coverage of 90 climate events. Considering the news values found, an observation can be concluded on how Zero Hora represents the relationship between men and climate. This study concludes that the newspaper represents man as a victim of the climate events. Furthermore there is a personification of the nature in these events, in which it is identified as a major culprit for the consequences, changes, destruction and death. This representation of the climate shows that there is no deep discussion over the influence of human intervention on nature itself. The news values that guide the approach to climate and weather in Zero Hora are not related to aspects such as environmental issues. Problems such as poor urban space planning, the siltation of rivers, high risk areas public policies, which can be considered as causes of flooding, for example, are not made evident in the news about the climate. / Nesse trabalho procuramos refletir sobre o papel do jornalismo ao construir determinadas representações da relação entre o homem e o clima, principalmente diante do cenário das mudanças climáticas. Partimos do pressuposto de que a notícia é um tipo específico de sistema simbólico e configura-se numa construção cultural, construída através dos valores-notícias que funcionam com mapas de representação. Nosso objetivo geral é analisar a cobertura do clima em Zero Hora, nas suas diferentes editorias, a partir dos valores-notícia para evidenciar como se dá, nas notícias, a relação homem e clima. Os objetivos específicos da pesquisa concentram-se em caracterizar os acontecimentos climáticos para o jornalismo, definir conceitos como tempo e clima, compreender como se dá historicamente a relação entre a imprensa e clima e entre jornalismo e meteorologia. Apresentamos um mapeamento dos acontecimentos climáticos em Zero Hora através de uma pesquisa qualitativa com abordagem quantitativa de caráter exploratório para identificarmos os valores-notícia, e seus significados a partir de alguns aspectos das teorias das Representações utilizando contribuições de Patrick Charaudeau, Stuart Hall e Cristina Ponte. Também realizamos entrevistas com profissionais da meteorologia e do jornalismo para compreender como eles interagem com o tema. Nosso estudo buscou analisar desde as notícias que envolvem as condições variáveis do tempo no dia-a-dia até as que mostram os efeitos das mudanças climáticas que podem levar anos para se manifestar, no jornal Zero Hora, da Rede Brasil Sul, no Rio Grande do Sul. Analisamos 41 edições e mapeamos a cobertura de 90 acontecimentos climáticos. A partir dos valores-notícia encontrados podemos observar como Zero Hora representa a relação homem e clima. O trabalho conclui que o jornal representa o homem como vítima dos eventos climáticos. Há uma personificação da natureza, diante desses eventos, na qual ela é apontada como a grande culpada pelas consequências, mudanças, destruição e mortes. Essa representação do clima mostra que não há um debate aprofundado sobre a própria intervenção do homem na natureza. Os valores-notícia que guiam a abordagem do clima e do tempo em Zero Hora não estão relacionados a aspectos como a problemática ambiental. Problemas como a má ocupação do espaço urbano, o assoreamento dos rios, os locais de risco e a falta de políticas públicas, os quais podem ser apontados como causadores de alagamentos ou enchentes, por exemplo, não são evidenciados nas notícias sobre o clima.
610

Faisabilité de transistors organiques à effet de champ fabriqués entièrement en solution / Feasibility of solution processed organic field-effect transistors

Kuai, Wenlin 23 January 2017 (has links)
Le travail entre dans le cadre de la nouvelle tendance à la recherche d’une électronique mécaniquement flexible basée sur des transistors en couche mince constitués uniquement de matériaux organiques (OTFT). OTFT de type n et de type p ont été fabriqués par la technique de dépôt par impression (inkjet) et étudiés. Les paramètres d’impression (jetabilité, mouillabilité, imprimabilité et possibilité d’obtention de différentes formes), de chaque encre permettant le dépôt de couches conductrices, isolantes et semiconductrices, ont été systématiquement étudiés. Les OTFT de type n basés sur du C60 se sont montrés non fiables, principalement du fait de la faible solubilité du C60 dans les solvants organiques. Les OTFT de type basés sur du Tips-pentacene ont montré par contre une grande fiabilité. Le travail global constitue une large revue des problèmes et difficultés rencontrés dans la fabrication de transistors fabriqués entièrement par impression jet d’encre. Des solutions ont été trouvées et de nouvelles idées sont proposées. / Present work deals with the new trend to get highly flexible electronics by using fully Organic Thin-Film Transistor (OTFT) as the basic element of this electronics. Fully organic n-type as well as p-type OTFT processed by inkjet printing are studied. Printing parameters of each ink, jettability, wetting, printability, and patterns optimization, leading to the deposition of conductive contacts, gate insulator and semiconducting active layer are studied. Process of n-type OTFT based on C60 is shown as unreliable, mainly due to the poor solubility of C60 in organic solvent. In the contrary, p-type OTFTs based on Tips-pentacene are much more reliable. The work is a large overview of the issues and the difficulties that have been to jump and to solve in the way to fabricate fully printed organic transistors. Some solutions have been given and new ideas have been proposed.

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