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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.
1

Knihtisk aneb počátky ruční sazby / Letterpress - Origin of Manual Typesetting

DRYKOVÁ, Zdeňka January 2019 (has links)
Master thesis "Letterpress - Origin of Manual Typesetting" consists of the theoretical and the practical part. Theoretical part describes the origin and development of book printing and printed Latin script - proces of type casting and typesetting. Then, the life Johannes Gutenberg is briefly described. The information was partially ontains printed graphical compositions created using wooden letters for script printing in combination with two other graphical techniques of printing from height - monotype and linocut. The part of this work became the experimenting with graphical creative means.
2

Screening Web Breaks in a Pressroom by Soft Computing

Ahmad, Alzghoul January 2008 (has links)
<p>Web breaks are considered as one of the most significant runnability problems</p><p>in a pressroom. This work concerns the analysis of relation between various</p><p>parameters (variables) characterizing the paper, printing press, the printing</p><p>process and the web break occurrence. A large number of variables, 61 in</p><p>total, obtained off-line as well as measured online during the printing process</p><p>are used in the investigation. Each paper reel is characterized by a vector x</p><p>of 61 components.</p><p>Two main approaches are explored. The first one treats the problem as a</p><p>data classification task into "break" and "non break" classes. The procedures</p><p>of classifier training, the selection of relevant input variables and the selection</p><p>of hyper-parameters of the classifier are aggregated into one process based on</p><p>genetic search. The second approach combines procedures of genetic search</p><p>based variable selection and data mapping into a low dimensional space. The</p><p>genetic search process results into a variable set providing the best mapping</p><p>according to some quality function.</p><p>The empirical study was performed using data collected at a pressroom</p><p>in Sweden. The total number of data points available for the experiments</p><p>was equal to 309. Amongst those, only 37 data points represent the web</p><p>break cases. The results of the investigations have shown that the linear</p><p>relations between the independent variables and the web break frequency</p><p>are not strong.</p><p>Three important groups of variables were identified, namely Lab data</p><p>(variables characterizing paper properties and measured off-line in a paper</p><p>mill lab), Ink registry (variables characterizing operator actions aimed to</p><p>adjust ink registry) and Web tension. We found that the most important</p><p>variables are: Ink registry Y LS MD (adjustments of yellow ink registry</p><p>in machine direction on the lower paper side), Air permeability (character-</p><p>izes paper porosity), Paper grammage, Elongation MD, and four variables</p><p>characterizing web tension: Moment mean, Min sliding Mean, Web tension</p><p>variance, and Web tension mean.</p><p>The proposed methods were helpful in finding the variables influencing </p><p>the occurrence of web breaks and can also be used for solving other industrial</p><p>problems.</p>
3

Screening Web Breaks in a Pressroom by Soft Computing

Ahmad, Alzghoul January 2008 (has links)
Web breaks are considered as one of the most significant runnability problems in a pressroom. This work concerns the analysis of relation between various parameters (variables) characterizing the paper, printing press, the printing process and the web break occurrence. A large number of variables, 61 in total, obtained off-line as well as measured online during the printing process are used in the investigation. Each paper reel is characterized by a vector x of 61 components. Two main approaches are explored. The first one treats the problem as a data classification task into "break" and "non break" classes. The procedures of classifier training, the selection of relevant input variables and the selection of hyper-parameters of the classifier are aggregated into one process based on genetic search. The second approach combines procedures of genetic search based variable selection and data mapping into a low dimensional space. The genetic search process results into a variable set providing the best mapping according to some quality function. The empirical study was performed using data collected at a pressroom in Sweden. The total number of data points available for the experiments was equal to 309. Amongst those, only 37 data points represent the web break cases. The results of the investigations have shown that the linear relations between the independent variables and the web break frequency are not strong. Three important groups of variables were identified, namely Lab data (variables characterizing paper properties and measured off-line in a paper mill lab), Ink registry (variables characterizing operator actions aimed to adjust ink registry) and Web tension. We found that the most important variables are: Ink registry Y LS MD (adjustments of yellow ink registry in machine direction on the lower paper side), Air permeability (character- izes paper porosity), Paper grammage, Elongation MD, and four variables characterizing web tension: Moment mean, Min sliding Mean, Web tension variance, and Web tension mean. The proposed methods were helpful in finding the variables influencing the occurrence of web breaks and can also be used for solving other industrial problems.
4

Um caminho de suor e letras : a militancia negra em Campinas e a construção de uma comunidade imaginada nas paginas do Getulino (Campinas, 1923-1926)

Miranda, Rodrigo 19 December 2005 (has links)
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
5

D’encre et de sang. Politiques jésuites de l’écrit dans les premiers temps de la mission anglaise de 1580 à 1610 / The role of writing in the English Jesuit mission from 1580 to 1610

Serena, Gaëlle 24 November 2012 (has links)
Cette étude interroge la place de l’écrit et des actes d’écriture lors de la première mission jésuite en Angleterre, de 1580 à 1610. Lettres, autobiographies et pamphlets s’inscrivent dans un programme mis en place par les supérieurs de l’ordre, visant à l’édification des catholiques anglais et au dénigrement du gouvernement d’Élisabeth auprès des peuples européens. À la fois outils de propagande et seuls moyens d’information possibles entre l’île et le continent, les écrits missionnaires permettent à leurs auteurs de donner corps à la communauté récusante clandestine, ainsi qu’à la mission elle-même. La circulation de ces textes, tant en Angleterre que sur le continent, trace ainsi les contours d’une communauté dont l’existence est étroitement liée à la production de l’écrit. Mais, si elle détournée, la trace peut devenir arrêt de mort, révélant l’identité de celui qui l’a produite aux yeux de l’intrus qui la déchiffre. Pourtant, les jésuites ne cessent d’écrire malgré le danger que cela représente. L’acte d’écriture semble alors dépasser la seule visée programmatique pour revêtir une dimension ontologique, permettant à l’auteur de dépasser le traumatisme de l’expérience immédiate et de renouer avec sa propre identité, mise en mal par l’exil, la prison ou la perspective de l’exécution. / The purpose of this study is to analyse the role of writing during the first English Jesuit mission, from 1580 to 1610. It shows that letters, pamphlets and autobiographies were part of a larger programme devised by the Superiors of the Company of Jesus. As both a means of propaganda and information between England and the continent, missionary writings helped to shape the Jesuit mission and the underground recusant community within which the Jesuits lived. The aim was to edify the English Catholics and to weaken Elizabeth’s government in the eyes of European Catholics. By circulating texts throughout the country and in the rest of Europe, the Jesuits shaped a community highly reliant on written material. But writing was also incredibly dangerous as it marked the author and those responsible for its circulation as irredeemably catholic. Yet, the Jesuits kept on writing regardless of the consequences. Indeed, writing was vital to those missionaries whose identity was daily denied and who had to face the gloomy prospect of death from their arrival onwards. The very act of writing allowed them to fight against the feeling of dispossession which was gradually taking hold of them.
6

"Jornalismo e políticas públicas. A imprensa de São Paulo esclarece a dinâmica da participação política quando cobre o discurso e a ação pública?" (1994-2004) / Journalism and Public Policies,Brazil, Sao Paulo, (1994-2004)

Laurenza, Ana Maria de Abreu 05 August 2005 (has links)
Esta tese Jornalismo e Políticas Públicas analisa uma amostra da cobertura da pauta Políticas Publicas pela imprensa de São Paulo, no período entre 1994/2004, dos jornais “Folha de S.Paulo" e “O Estado de S.Paulo" e das revistas semanais “Carta Capital" e “Veja" . Este estudo parte de um universo de 170 matérias e seleciona 18 textos para refletir se o jornalismo traz em si o potencial de estabelecer relações entre o discurso e a ação pública, comunicando ao leitor a interação que se dá entre Estado, governo e sociedade civil na implementação de uma política pública, no gasto do orçamento para a resolução dos problemas sociais do país. Desta forma, se observa se o jornalismo auxilia na dinâmica da participação política, que possa ser concretizada pela administração pública e o cidadão. A pesquisa reúne reflexões de autores de referência sobre democracia, poliarquia, espaço público, participação dos movimentos sociais, redimensionamento e questões do Estado, governabilidade, uso público da razão e da emoção, a natureza do espaço e do tempo na globalização acelerada, o estado da arte das políticas públicas no Brasil dos anos 90. A partir deste corpus teórico, criaram-se cinco categorias (engenharia social, pluralidade, noção de transformação sócio - política, didatismo e agir público) para se realizar a análise de conteúdo dos 18 textos escolhidos e dimensionar se, apesar da fragmentação inerente à atividade jornalística, a imprensa escrita consegue desempenhar esta tarefa com competência editorial, isto é, refletir o grau de conhecimento e participação que a sociedade brasileira já amealhou sobre Políticas Públicas, informando ainda o caráter matricial da pauta, que perpassa por diversos campos da atividade humana. O comentário a seguir de Theodoro Lowi, esclarece a expressão Política Pública e pontua o significado do termo de que trataremos nesta tese. “ A expressão política pública é um termo engenhoso que reflete a interpenetração entre o governo liberal e a sociedade, insinuando a existência de uma flexibilidade e reciprocidades maiores do que permitem alguns sinônimos unilaterais tais como: leis, estatutos, éditos e semelhantes. Essa difusão reflete novos valores na cultura política relativos à publicização de decisões e à noção da esfera pública como distinta da esfera estatal" Jornalismo e Políticas Públicas conclui que o jornalismo tem em si o potencial de estabelecer relações entre a ação pública e o discurso, quando aborda com competência editorial, pautas relativas às políticas públicas implementadas para resolver problemas sociais. Este princípio se fortalece na medida em que o processo de implantação de uma política pública possibilita em tese a criação e o fortalecimento das relações entre os agentes sociais, através da ação e do discurso, que segundo Hanna Arendt, encerra a condição humana na esfera pública, para Arendt, a esfera das aparências De maneira geral, é na mídia impressa que se processa maior relacionamento critico entre meio de comunicação e o leitor. Ao menos, pressupõe –se que ao público do jornal está consagrada a ferramenta básica da cidadania que é o entendimento da língua e o potencial de expressão, base do relacionamento público. Em relação ao jornalismo, a reflexão sobre sua contribuição no desenvolvimento social mais equilibrado do Brasil, ao estabelecer relações entre discurso ( o pensamento) e ação pública, levantou questões que ajudam a entender melhor a posição híbrida dos jornais e revistas que, são meios de produção privados, portanto visam lucros e defendem interesses vários, ao mesmo tempo em que lançam no espaço mental público, informações e debates. É possível que os jornais, antes de se transformarem em tribunais de execução sumária da reputação alheia, sejam agentes do princípio mais caro da ação política pública : a necessidade de se submeter o pensamento (discurso) ao exame público. / Abstract This Journalism and Public Policies thesis analyzes a sample of press coverage of Public Policy issues in São Paulo between 1994 to 2004, as published by the newspapers “Folha de S. Paulo" and “O Estado de S. Paulo", as well as the weekly magazines “Carta Capital" and “Veja". This study is based upon 170 stories. Eighteen texts have been selected to determine if journalism itself is capable of establishing connections between discourse and public action, communicating to the reader the interaction that takes place between the State, government and civil society for implementing public policy and budget expenditures for the resolution of social problems faced by the country. Thus, the question posed is whether or not journalism furthers the dynamic of public participation, which the government and citizens can put into practice. The research blends the reflections of the referenced authors on democracy, polyarchy, public space, participation in social movements, the redesign and questions of the State, governability, public use of reason and emotion, the nature of space and time in an era of accelerated globalization, as well as state-of-the-art public politics in Brazil during the 1990’s. Five categories were then created from this theoretical body (social engineering, plurality, the notion of socio-political transformation, didacticism and public action) to analyze the content of the eighteen chosen texts and to provide a framework. Despite the fragmentation inherent to journalistic activities, the written press is able to perform this task with editorial competence, that is, to reflect the degree of knowledge and participation that Brazilian society has already gained little by little about Public Policies, which further informs the core nature of the issue and runs through various fields of human activity. The quote below from Theodoro Lowi clarifies this expression of Public Policy and emphasizes its meaning as it is used in this thesis. “Public political expression is a clever term that reflects the blending of liberal government and society, insinuating the existence of greater flexibility and reciprocity than some unilateral synonyms would allow, like: laws, statutes, bills and the like. This diffusion reflects new values in political culture relative to the diffusion of decisions, and the notion of a public sphere that is distinctly separate from the state sphere." Journalism and Public Policy concludes that journalism itself has the potential to establish an active relationship between public action and discourse, when editorial integrity is upheld, on public policies implemented to resolve social problems. This principle is strengthened to the extent that the process for implementing a public policy makes it possible, in theory, to create and strengthen associations among social agents through action and discourse, which, according to Hanna Arendt, confines the human condition in the public sphere, which, for Arendt, is a sphere of appearances. In general, it is the print media that contains the greatest critical relationship between communication means and the reader. At the very least, it assumes that the newspaper’s readership is in command of the most basic tools of citizenship, which are an understanding of the language and the potential for expression, that is, the basis of a public relationship. With respect to Journalism, reflections on its contribution towards a more balanced social development in Brazil, by establishing relationships between discourse (thought) and public action, have raised questions that aid in a better understanding of the hybrid position of newspapers and magazines, which are means of private production, and, as such, seek profits, defend various interests, and attempt to inject information and debates into the public consciousness. Newspapers can, prior to becoming forums for the summary execution of reputations, be agents of the most precious principle of public political action: the need to submit thought (discourse) to public examination.
7

"Jornalismo e políticas públicas. A imprensa de São Paulo esclarece a dinâmica da participação política quando cobre o discurso e a ação pública?" (1994-2004) / Journalism and Public Policies,Brazil, Sao Paulo, (1994-2004)

Ana Maria de Abreu Laurenza 05 August 2005 (has links)
Esta tese Jornalismo e Políticas Públicas analisa uma amostra da cobertura da pauta Políticas Publicas pela imprensa de São Paulo, no período entre 1994/2004, dos jornais “Folha de S.Paulo” e “O Estado de S.Paulo” e das revistas semanais “Carta Capital” e “Veja” . Este estudo parte de um universo de 170 matérias e seleciona 18 textos para refletir se o jornalismo traz em si o potencial de estabelecer relações entre o discurso e a ação pública, comunicando ao leitor a interação que se dá entre Estado, governo e sociedade civil na implementação de uma política pública, no gasto do orçamento para a resolução dos problemas sociais do país. Desta forma, se observa se o jornalismo auxilia na dinâmica da participação política, que possa ser concretizada pela administração pública e o cidadão. A pesquisa reúne reflexões de autores de referência sobre democracia, poliarquia, espaço público, participação dos movimentos sociais, redimensionamento e questões do Estado, governabilidade, uso público da razão e da emoção, a natureza do espaço e do tempo na globalização acelerada, o estado da arte das políticas públicas no Brasil dos anos 90. A partir deste corpus teórico, criaram-se cinco categorias (engenharia social, pluralidade, noção de transformação sócio - política, didatismo e agir público) para se realizar a análise de conteúdo dos 18 textos escolhidos e dimensionar se, apesar da fragmentação inerente à atividade jornalística, a imprensa escrita consegue desempenhar esta tarefa com competência editorial, isto é, refletir o grau de conhecimento e participação que a sociedade brasileira já amealhou sobre Políticas Públicas, informando ainda o caráter matricial da pauta, que perpassa por diversos campos da atividade humana. O comentário a seguir de Theodoro Lowi, esclarece a expressão Política Pública e pontua o significado do termo de que trataremos nesta tese. “ A expressão política pública é um termo engenhoso que reflete a interpenetração entre o governo liberal e a sociedade, insinuando a existência de uma flexibilidade e reciprocidades maiores do que permitem alguns sinônimos unilaterais tais como: leis, estatutos, éditos e semelhantes. Essa difusão reflete novos valores na cultura política relativos à publicização de decisões e à noção da esfera pública como distinta da esfera estatal” Jornalismo e Políticas Públicas conclui que o jornalismo tem em si o potencial de estabelecer relações entre a ação pública e o discurso, quando aborda com competência editorial, pautas relativas às políticas públicas implementadas para resolver problemas sociais. Este princípio se fortalece na medida em que o processo de implantação de uma política pública possibilita em tese a criação e o fortalecimento das relações entre os agentes sociais, através da ação e do discurso, que segundo Hanna Arendt, encerra a condição humana na esfera pública, para Arendt, a esfera das aparências De maneira geral, é na mídia impressa que se processa maior relacionamento critico entre meio de comunicação e o leitor. Ao menos, pressupõe –se que ao público do jornal está consagrada a ferramenta básica da cidadania que é o entendimento da língua e o potencial de expressão, base do relacionamento público. Em relação ao jornalismo, a reflexão sobre sua contribuição no desenvolvimento social mais equilibrado do Brasil, ao estabelecer relações entre discurso ( o pensamento) e ação pública, levantou questões que ajudam a entender melhor a posição híbrida dos jornais e revistas que, são meios de produção privados, portanto visam lucros e defendem interesses vários, ao mesmo tempo em que lançam no espaço mental público, informações e debates. É possível que os jornais, antes de se transformarem em tribunais de execução sumária da reputação alheia, sejam agentes do princípio mais caro da ação política pública : a necessidade de se submeter o pensamento (discurso) ao exame público. / Abstract This Journalism and Public Policies thesis analyzes a sample of press coverage of Public Policy issues in São Paulo between 1994 to 2004, as published by the newspapers “Folha de S. Paulo” and “O Estado de S. Paulo”, as well as the weekly magazines “Carta Capital” and “Veja”. This study is based upon 170 stories. Eighteen texts have been selected to determine if journalism itself is capable of establishing connections between discourse and public action, communicating to the reader the interaction that takes place between the State, government and civil society for implementing public policy and budget expenditures for the resolution of social problems faced by the country. Thus, the question posed is whether or not journalism furthers the dynamic of public participation, which the government and citizens can put into practice. The research blends the reflections of the referenced authors on democracy, polyarchy, public space, participation in social movements, the redesign and questions of the State, governability, public use of reason and emotion, the nature of space and time in an era of accelerated globalization, as well as state-of-the-art public politics in Brazil during the 1990’s. Five categories were then created from this theoretical body (social engineering, plurality, the notion of socio-political transformation, didacticism and public action) to analyze the content of the eighteen chosen texts and to provide a framework. Despite the fragmentation inherent to journalistic activities, the written press is able to perform this task with editorial competence, that is, to reflect the degree of knowledge and participation that Brazilian society has already gained little by little about Public Policies, which further informs the core nature of the issue and runs through various fields of human activity. The quote below from Theodoro Lowi clarifies this expression of Public Policy and emphasizes its meaning as it is used in this thesis. “Public political expression is a clever term that reflects the blending of liberal government and society, insinuating the existence of greater flexibility and reciprocity than some unilateral synonyms would allow, like: laws, statutes, bills and the like. This diffusion reflects new values in political culture relative to the diffusion of decisions, and the notion of a public sphere that is distinctly separate from the state sphere.” Journalism and Public Policy concludes that journalism itself has the potential to establish an active relationship between public action and discourse, when editorial integrity is upheld, on public policies implemented to resolve social problems. This principle is strengthened to the extent that the process for implementing a public policy makes it possible, in theory, to create and strengthen associations among social agents through action and discourse, which, according to Hanna Arendt, confines the human condition in the public sphere, which, for Arendt, is a sphere of appearances. In general, it is the print media that contains the greatest critical relationship between communication means and the reader. At the very least, it assumes that the newspaper’s readership is in command of the most basic tools of citizenship, which are an understanding of the language and the potential for expression, that is, the basis of a public relationship. With respect to Journalism, reflections on its contribution towards a more balanced social development in Brazil, by establishing relationships between discourse (thought) and public action, have raised questions that aid in a better understanding of the hybrid position of newspapers and magazines, which are means of private production, and, as such, seek profits, defend various interests, and attempt to inject information and debates into the public consciousness. Newspapers can, prior to becoming forums for the summary execution of reputations, be agents of the most precious principle of public political action: the need to submit thought (discourse) to public examination.
8

Fleksografinės spausdinimo mašinos „OMET VARYFLEX 420 FP“ sekcijos pavaros dinaminio tikslumo tyrimas / Flexographic printing press „OMET VARYFLEX 420 FP“ unit‘s drive dynamical precision research

Černych, Konstantin 16 June 2006 (has links)
Master‘s graduation dissertation research object is the drive of one unit of multisection web-fed flexographic printing press „Omet Varyflex 420 FP“. The main purpose of the work is drive’s dynamical precision research, basing on the torsion vibration. But the main attention is concentrated on the research object mathematical model creation. It will be able to investigate torsion vibration. In the beginning there is description of the research object, its dynamical model and assumptions, made while modeling the object. As the main research object is mechanical drive, unit’s electric drive is not detailed. Unit‘s structural model is created using the „MATLAB Simulink“ software. While modeling, it was proved the model is adequate. It was investigated how generalized coordinates and dynamical datums change while the press is switched on and starts to work with constant angular acceleration and when the angular speed reaches particular value, it does not change any more. Amplitude-frequency and phase-frequency responses of some generalized coordinates were got. Changing some parameters flexographic printing plate aging is modeled. It is watched how aging influences torsion vibration. While modeling it was determined how gearwheels cyclic harmonic error’s amplitude and beds resistance coefficients influence dynamical datums. It was also determined unit’s electric drive influence on generalized coordinates frequency responses. Basing on the analysis of the results, the conclusions... [to full text]
9

Lapo perdavimo mechanizmo dinaminio tikslumo tyrimas / Research of the dynamic accuracy of the sheet driving mechanism

Šilkus, Edgaras 01 August 2012 (has links)
Lakštinėse spausdinimo mašinose spausdinant spalvotus atvaizdus svarbu mašinos atskirose sekcijose atspaudų sutapimą išlaikyti šimtųjų milimetro dalių tikslumu. Be to, spausdinamų atvaizdų geometrinis nesutapimas abiejose lapo pusėse neturi viršyti 0,1 mm. Viena iš pagrindinių nesutapimo priežaščių yra mechaninio krumpliaratinio perdavimo mechanizmo iš vienos sekcijos į kitą sukamieji virpesiai, kuriuos sukelia krumpliaračių paklaidos ir pasipriešinimo momentų pokyčiai tarp ofsetinių ir forminių cilindrų. Darbe analiziniu – kompiuteriniu būdu nagrinėjama šių virpesių įtaka lapo perdavimo tikslumui. Konkrečiam tyrimui pasirinkta „Heidelberg“ spausdinimo mašina GTO 52, tačiau darbe taikoma tyrimo metodika tinka ir kitoms mašinoms. Sudarytas elektros pavara valdomo lapų perdavimo mechanizmo dinaminis modelis su 16 laisvės laipsnių. Sistemos matematinis modelis (virpesių lygtys ir struktūrinė schema) sudarytas kompiuterizuotu būdu MATLAB/SIMULINK programų terpėje, kurioje atliktas sistemoje vykstančių dinaminių procesų modeliavimas. Pavaroje kylančios paklaidos apibūdinamos sukamųjų virpesių amplitudinėmis – dažninėmis charakteristikomis. Nagrinėjama šių charakteristikų pobūdžio, rezonansinių virpesių ir jų dažnių įtaka lapo perdavimo paklaidos dydžiui. / It is important in printing machines to maintain very high print quality (hundredths of a millimeter) in printing colorful prints. Also mismatches of prints in both sides of sheet must not exceed 0,1 millimeter. One of the reasons of mismatching is mechanical gear transfers mechanisms, from one printing unit to another, rotational oscillations, which are generated by gear errors and resistance moment changes between offset and print cylinder. These oscillations influence to sheet transfer accuracy are examined in analytical – computer way. For particular examination there was selected “Heidelberg” printing press GTO 52, but the examination method can be used for other presses. There was formed dynamic model with 16 degrees of freedom. Mathematical model of the system (oscillation equations and flowchart) was formed with MATLAB/SIMULINK program, in which dynamical process modeling was done. Errors in drive described as an amplitude frequency response. There was examined these response nature, resonant oscillations and its frequency influence to sheets transfer errors size.
10

Brancos e vermelhos : a guerra civil espanhola através das páginas do jornal Correio do Povo (1936-1939)

Fraga, Gerson Wasen January 2004 (has links)
Entre 1936 e 1939, a Espanha foi abalada por uma violenta Guerra Civil. Tendo sido deflagrada no período entre guerras, quando o capitalismo experimentava os efeitos da crise de 1929; quando o fascismo atravessava seu momento de afirmação na Europa, e quando a Revolução Russa apresentava uma alternativa política para os povos, este acontecimento acabou por se tornar rico em símbolos e significados, atraindo não apenas a atenção, mas também a solidariedade de boa parte do mundo para ambos os lados em contenda. No Brasil, marcado pela repressão ao comunismo, especialmente após 1935, a Guerra Civil Espanhola veio a servir, na visão das elites, como exemplo do que poderia aqui ocorrer caso o comunismo viesse a encontrar solo fértil no continente americano, sendo uma das formas de difundir esta idéia as páginas da grande imprensa escrita. Nosso objetivo é demonstrar como a Guerra Civil Espanhola foi apresentada à sociedade pelo jornal Correio do Povo, à época o periódico de maior importância no Rio Grande do Sul. Através de sua leitura sobre os fatos na Espanha naqueles anos conturbados, temos um exemplo da forma como as idéias de mudança social eram vistas por uma parcela da elite brasileira, bem como de seu alinhamento com as diretrizes políticas oficiais daquele momento. / In 1936-39, the Spain was loose by a violent Civil War. Happened in the between wars age, when the capitalism experiment the effects of the 29’s crisis, when the fascism crossed your moment of affirmation in Europe, and when the Russian Revolution presented a political alternative for the peoples, this happening rendered rich in symbols and meanings, attracting the attention and the solidarity of share of the world for both the sides in quarrel. In Brazil, marked for the repression at communism afterwards 1935, the Spanish Civil War served, for the elites, how example of the how can happen here in the event of the communism meeted firm land in the american continent, to be a from the forms of diffuse this idea the pages of the big press. Our objective is demonstrate how the Spanish Civil War gone presented for the society by Correio do Povo journal, in the time of the happening the newspaper of higher importance in the Rio Grande do Sul State. Through of this reading about the happenings in the Spain at that disturbed years, we have a example of the shape how the social changes ideas was includeds by a parcel of the brazilian elites, as well as of the your arrangement with the official politics from that moment.

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