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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.
51

Tecnologia, política e cultura na história do rádio em Goiás (1950-1964) / Tecnología, la política y la cultura en la historia de la radio en Goiás (1950-1964)

Marques, Edmilson Ferreira 08 September 2014 (has links)
Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2015-01-13T14:07:49Z No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Tese - Edmilson Ferreira Marques - 2014.pdf: 5396809 bytes, checksum: 47e85b54d7aec93c4b9050dbd4e8a2b8 (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2015-01-13T14:08:26Z (GMT) No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Tese - Edmilson Ferreira Marques - 2014.pdf: 5396809 bytes, checksum: 47e85b54d7aec93c4b9050dbd4e8a2b8 (MD5) / Made available in DSpace on 2015-01-13T14:08:26Z (GMT). No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Tese - Edmilson Ferreira Marques - 2014.pdf: 5396809 bytes, checksum: 47e85b54d7aec93c4b9050dbd4e8a2b8 (MD5) Previous issue date: 2014-09-08 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / With this research I propose to present a history of radio in Goiás between 1950 and 1964. This is actually the study I conducted of 19 stations in eleven city of this state. The documentation that I had access led me to pursue a matter that has emerged since the first sources I have taken in hand, namely that this story takes shape as an expression of radio rationalization that period. Divide the survey into four chapters, structured according to this prerogative. In each elaborated topics to discuss the themes that emerged in the course of the study. The basic question to be highlighted was the process of overcoming the professionalism of amateurism. This was an ambiguity that arose as a backdrop and the thesis has come to completion. / Com esta pesquisa me proponho a apresentar a história do rádio em Goiás entre 1950 e 1964. Trata-se na verdade, de um estudo sobre 19 emissoras em onze cidades deste Estado. A documentação que tive acesso me levou a perseguir uma questão que emergiu desde as primeiras fontes que tomei em mãos, ou seja, a de que esta história se configura como expressão da racionalização radiofônica naquele período. Dividi a pesquisa em quatro capítulos, estruturados de acordo com essa prerrogativa. Em cada um elaborei tópicos para discutir as temáticas que emergiram no percurso da pesquisa. A questão elementar que se evidenciou foi o processo de superação do amadorismo pelo profissionalismo. Essa foi uma dubiedade que se colocou como pano de fundo e percorreu a tese até a conclusão.
52

Utilização de pré-moldados em edifícios de alvenaria estrutural / Precast concrete elements in structural masonry buildings.

Fabiana Cristina Mamede 21 September 2001 (has links)
Elementos pré-moldados são uma opção para aumentar a racionalização no processo construtivo em alvenaria estrutural. Eles associam-se a particularidades desse processo com relação à rapidez de execução, rígido controle de qualidade, coordenação modular e alto nível organizacional da produção. Este trabalho pesquisou os pré-moldados freqüentemente utilizados em edifícios de alvenaria estrutural, tais como: blocos, escadas, contramarcos, vergas e peças de ajuste dimensional. Os pré-moldados foram analisados em seus aspectos estruturais, dimensionais e geométricos, respeitando-se as características que os tornam viáveis no aspecto construtivo, como a facilidade de produção, de manuseio e de transporte. Considerou-se, sempre, a coordenação modular e a compatibilização dimensional entre os componentes e subsistemas. Quando necessário, foram apresentados roteiro e exemplo de projeto, assim como quadros comparativos de vantagens e desvantagens / Precast concrete elements are a good option to improving the rationalization in structural masonry building process. They are related to the following features of this process: reduction of building times consumption, strict quality control, modular coordination and high level of manufacturing organization. This work deals with precast concrete elements commonly used in structural masonry buildings, such as: blocks, stairs, window’s frames, lintels and pieces for dimensional adjustment. Structural, dimensional and geometrical characteristcs of precast concrete elements are analysed, considering the viability of production, transporting and handling the pieces. Modular coordination and the dimensional compatibility are always taken in account. Guidelines, design examples and comparative tables with pros and cons are inserted when convenient
53

Aplicação de recursos computacionais em projetos de edifícios em alvenaria / Application of computational resources in masonry buildings design

Julio Antonio Razente 25 August 2004 (has links)
A finalidade deste trabalho é apresentar o desenvolvimento, através da utilização da linguagem de programação AutoLISP, de programa computacional relacionado à etapa de projeto de edifícios em alvenaria. O programa, intitulado ALVPLUS, auxilia nas atividades de modulação das alvenarias, geração automática de elevações e inserção de detalhes relacionados à alvenaria estrutural como disposições construtivas, armaduras, quantitativos de materiais e legendas, dispostos em arquivos eletrônicos do seu banco de dados. Além disso, discute-se os parâmetros associados à implementação da racionalização construtiva, considerando a compatibilização entre o projeto estrutural e os demais projetos (arquitetônico, instalações, entre outros). A utilização deste programa propicia o aumento da produtividade e da padronização dos projetos de alvenarias, assim como o aumento da qualidade e entendimento desses projetos. / This work's purpose is to present the development of software related to the stage of masonry's building design, through the use of the programming language AutoLISP. The software, entitled ALVPLUS, aids in the activities of masonries' modulation, automatic generation of elevations and insertion of details related to the structural masonry as constructive dispositions, armors, materials quantification and legends, available in its database. Besides, it's discussed the parameters associated to the implementation of the constructive rationalization, considering the compatibility between the structural designs and the other projects (architectural, installations, among others). The use of this software propitiates the productivity's increase and the standardization of the masonries' projects, as well as the increase of the quality and understanding of those projects.
54

Tecnologia construtiva de revestimento externo de argamassa com projeção contínua. / Outer rendering constructive technology with mortar and continuous projection.

Naira Ery Asano 11 March 2016 (has links)
Os métodos construtivos de revestimento externo produzidos com argamassa vêm evoluindo ao longo do tempo, apresentando como maior mudança a substituição da aplicação manual pela projeção mecânica. Atualmente destaca-se no mercado o sistema de execução de revestimento externo com argamassa industrializada e projeção mecânica contínua com bombas helicoidais. Por se tratar de uma tecnologia ainda não muito utilizada pelas construtoras brasileiras, faltam dados confiáveis acerca de seu potencial de ganho de produtividade, redução de perdas, diminuição de contingente de mão de obra, exigências de infraestrutura para aplicação e custos envolvidos. Sem parâmetros confiáveis, adotar a tecnologia significa assumir um nível de risco elevado e isto dificulta a tomada de decisão por parte das construtoras e, por consequência, dificulta-se a evolução tecnológica. Buscando contribuir para o necessário avanço nas tecnologias de produção de revestimentos de edifícios, o objetivo desta pesquisa é estabelecer parâmetros em relação à tecnologia de produção de revestimentos de fachada que empregam argamassa com projeção contínua. Para tanto, buscou-se informações em referências como teses, dissertações, textos técnicos, normas nacionais, dentre outras, bem como, acompanhou-se e avaliou-se os resultados da implantação de um método construtivo de revestimento de argamassa com projeção mecânica contínua em uma construtora de São Paulo. Foram realizados um protótipo e um piloto que contribuíram para o desenvolvimento da tecnologia por meio de apresentação de soluções para os problemas encontrados, do levantamento de melhores práticas e de dados para o cálculo de índices de produtividade e perda. Buscou-se, portanto, a consolidação da tecnologia de projeção contínua na construtora anteriormente mencionada e no mercado em geral. / The external rendering constructive methods produced with mortar have evolved over time and the greater change in it was the replacement of manual application by mechanical projection. The currently most prominent system in the market is the outer rendering execution system with industrialized mortar and continuous mechanical projection with helical pumps. Since this technology is not widely used by Brazilian construction companies, there is a lack of reliable data regarding its productivity gain potential, loss reduction, reduction of hand quota of work, infrastructure required for application and costs involved. Without reliable parameters, the decision to implement this technology is highly risky which does not encourage constructions companies to decide to apply it and, therefore, makes its technological evolution harder to be achieved. Aiming to contribute to the necessary advancement in technology for the production of rendering, this research has the objective to establish parameters to the rendering technology that uses industrialized mortar with continuous projection. With this purpose, it was used as source and reference the specialized literature such as thesis, dissertations and scientific papers, as well as both national norms. In addition, the research included the monitoring and assessment of the results from the implementation of a rendering execution method with continuous mechanical projection in a construction company in Sao Paulo. A prototype and a pilot scale were built and they contributed to the development of this technology by presenting solutions for problems identified and through the mapping of best practices and gathering data that allowed the calculation of productivity and loss rates. The goal was, thus, to consolidate the continuous projection technology in the above-mentioned construction company as well as in the market in a broader way.
55

As modernizações e racionalidades na agricultura e o uso do território: temporalidades e espacialidades no município de Ibiúna (SP) / The modernization and the racionalization in agriculture and the usage of territory: the case of temporality uses and spaciality at the district of Ibiúna (SP)

Elisangela Couto 20 August 2007 (has links)
Esse trabalho busca compreender os usos diferenciados que a agricultura empreende ao território, tornando-o cada vez mais fluido aos interesses dos grandes agentes corporativos. De maneira hierarquizada, esses agentes materializam suas intenções no território, visto enquanto um meio para atingir seus objetivos que perpassam por relações de poder pautadas, sobretudo, por fins mercadológicos. Todavia, os usos do território não são homogêneos uma vez que, as ações e os objetos propagam-se nos lugares a partir de relações de conflito e cooperação. Esse uso seletivo aponta para as funções que os lugares devem cumprir a partir das demandas nacionais e internacionais. Essa diferenciação de atividades agrícolas é notada em muitos lugares como é o caso do uso do espaço do município de Ibiúna (SP), constituído pela produção hortícola, mas que novas atividades começam a ganhar expressividade, tornando o espaço agrícola local ainda mais complexo. De um lado, a racionalização da agricultura tornou o território cada vez mais acrescido com os conteúdos da técnica, ciência e informação que possibilitaram importantes avanços nesse setor. Por outro lado, persistem os conflitos pelos quais passam os pequenos agricultores, envolvidos pela crescente normatização dada pelo Estado e pelo mercado, sem contudo, esses agentes fornecerem aparatos à sobrevivência dos agricultores em meio a esse processo. / This work intends to comprehend the so distinguished uses which agriculture enterprises on the territory, becoming increasingly fluid to the interests of the biggest corporative entrepreneurs. By hierarchical means, corporate agents materialize their intentions on territory, what is seen as a pathway through which they achieve their goals by using power relations ruled by market purposes on their favor. However, territory usage is not a homogeneous phenomenon once actions and objects are spread out through places from a core of relations of cooperation and conflict. This uneven usage directs specifics employments that must be accomplished, by places, attending to national and international demands. The agricultural activities differentiation can be noticed in several places of the territory, for instance, as in the use of the district area of Ibiúna?s (SP) space, constituted by horticulture activities, that has been joined by new expressive activities which heightened its complexity. On the one side, the agricultural rationalization has caused the territory to evolve by the use of technical, informational, and scientific contents which made it possible to move the sector forward. On the other hand, the conflicts the farmers go through still persist, related to the growing normatization inflicted by the State and the market which give no support whatsoever to the survival of the farmers, who are immersed in a modernization process.
56

Reducing redundant functionalities of an application portfolio : Case study Swedish municipality

Kara, Vikesh, Paidi, Vijay Pratap January 2011 (has links)
Many government organizations consist of complex application portfolios with significant redundant functionalities and in order to run this portfolio, 80% of the IT budget is consumed by maintenance cost. Eliminating redundant functionalities improves efficiency, operational performance and decreases maintenance costs. A midsized Swedish municipality has a complex application portfolio with redundant functionalities, and this study aims to suggest actions for reducing redundant functionalities of citizen related applications. In order to identify redundant functionalities in a complex organization such as the government, all surrounding complexities need to be identified. Therefore, by performing a literature study, Application Portfolio Rationalization has been selected as an approach for reducing redundant functionalities. An online survey was conducted for gathering data about applications and the total response rate was 46.5%. The collected data was analyzed to identify complexities and applications with similar purpose and functions. Finally, actions were suggested for reducing redundant functionalities of applications by consolidating them with the “best-in-class” application, and implementing a central database for reducing redundant storage of data by the applications.
57

Racionalizace nákladů na malé elektrické stroje / Rationalization of Cost of Small Electrical Machines

Vítková, Eva Unknown Date (has links)
The doctoral thesis deals with the cost rationalization in the process of small electric machines production. The rationalization can be done on two different levels: technical and economic. The doctoral thesis is divided into two parts, each focusing on the particular level and describing the production processes in which it is possible to optimize the costs. The main part of the doctor thesis concentrates on the economic side of the problém. It presents and analyses the origin of the costs, their identification and classification.Production costs specification and calculation are analysed. Due to the fact that there are many possibilities of optimal production cost calculations used in the process of small electric machines production, much attention is devoted to possibile calculation methods and calculation formulas.
58

De Taylor a Stakhanov : utopias e dilemas marxistas em torno da racionalização do trabalho / From Taylor to Stakhanov : marxists utopias and dilemmas around labor rationalization

Lucas, Marcilio Rodrigues, 1984- 27 August 2018 (has links)
Orientador: Liliana Rolfsen Petrilli Segnini / Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Filosofia e Ciências Humanas / Made available in DSpace on 2018-08-27T10:51:48Z (GMT). No. of bitstreams: 1 Lucas_MarcilioRodrigues_D.pdf: 3043330 bytes, checksum: a0f2bdab5bee59caf15b47e518ab7ad8 (MD5) Previous issue date: 2015 / Resumo: Este trabalho analisa dilemas do marxismo em torno da questão da racionalização do trabalho no século XX, especialmente no período entreguerras, quando se difundia pelo mundo capitalista os princípios tayloristas de organização científica do trabalho. Tais dilemas se relacionam ao fato de que o desenvolvimento da grande indústria moderna e a difusão dos princípios tayloristas permitiram uma grande elevação da produtividade do trabalho, ao mesmo tempo em que exacerbaram a condição subordinada dos trabalhadores no interior do processo de produção. Essa dinâmica colocou problemas para os movimentos operários e o pensamento marxista, tanto no que se refere às estratégias e possibilidades de resistência ao incremento da subordinação e da exploração sobre a força de trabalho, quanto em relação aos desafios teóricos e práticos contidos na tarefa de distinção entre os elementos potencialmente positivos desse processo de produção e os traços degradantes de sua exploração capitalista. As dificuldades se revelaram de forma mais dramática no caso da experiência revolucionária russa, na qual o horizonte aberto para a emancipação dos trabalhadores se chocava com a necessidade imediata de organizar e desenvolver o aparato produtivo frágil e deficiente. Por isso, esta pesquisa se concentra sobre o conjunto de problemas e experiências verificado na sociedade soviética, desde as formulações de Lenin a respeito do taylorismo, passando pelas tentativas de concretização de um "taylorismo soviético" na década de 1920, até o surgimento do stakhanovismo durante o período stalinista, em 1935, formando um movimento de operários que obtinham recordes de produção e reivindicavam, como princípio, uma racionalização do trabalho fundada em propostas e iniciativas dos próprios trabalhadores. A hipótese principal defendida em relação a essas experiências é que a estratégia de incorporação do taylorismo carregava limites incontornáveis do ponto de vista da emancipação dos trabalhadores, mas, por outro lado, o seu abandono no momento da ascensão stalinista representou um retrocesso e não um avanço, já que engendrou uma dinâmica em que a exaltação dos stakhanovistas, como "heróis do trabalho", obscurecia a formação de uma organização despótica e ineficiente da produção, cujos traços essenciais permaneceram até a dissolução do regime / Abstract: This thesis analyses Marxism¿s dilemmas around the question of the labor rationalization in the 20th century, specifically on the interwar period, when was diffused on the capitalist world the Taylor's principles of scientific organization of work. These dilemmas were associated with the modern industry development and the diffusion of the Taylor¿s principle. These facts allowed a huge increase of the work productivity causing at the same time an exacerbation of the worker¿s subordination condition inside the productive process. This dynamic put some problems for the workers movement and for the Marxist thought. Whether to the resistance strategies and possibilities against subordination increase and against work force exploitation, whether to the theoretical and practical challenges linked with the task of making a distinction between the potentially positive factors of this productive process and the degraded traits of the capitalist exploitation of this. The dilemmas were shown in a more dramatic way in the Russian¿s revolutionary experience, in which the possibility for worker¿s emancipation collided with the immediate necessity of organize and develop the productive resource, which was fragile and low. Considering all these facts, this research focused on all problems and experiences verified in the soviet society since Lenin¿s formulations about taylorism, going through concretion efforts to stablish a "soviet taylorism" in 1920, until the raising of Stakhanovism during the Stalinist period in 1935. In that year was formed a worker¿s movement that broken productive records and claimed, as a principle, a labor rationalization rooted on proposals and initiatives of the workers by themselves. The main hypothesis defended about these experiences was that the attempt of taylorism incorporation brought unsolvable limits to the worker's emancipation matters, but on the other hand, the renunciation of this attempt during Stalinist rising, meant a regression instead an improvement. It happened because was engendered a dynamic in which the Stakhanovist¿s exaltation as "heroes of the work" obscured the formation of a despotic and inefficient productive organization, which essential traits remained until the end of the regime / Doutorado / Ciencias Sociais / Doutor em Ciências Sociais
59

Racionalizace výroby součásti / Rationalization of a part production

Bartl, Lukáš January 2017 (has links)
The assigned thesis is focused on the proposal of rationalization solutions to the component Bonnet, which is a standard representative of the most important sections of broader spectrum of customer´s components. The introduction part describes the component basis, according to which the standard representative was chosen, later on characterised from the point of view of seriality. The following large part of classfying the time comsumption in machinery is essential for the calculations as such, which are the essential part of this dissertation. The proposal of production rationalization is concerned with the exclusion of unnecessary losses and using existing ressources with the help of a higher level of machinery, technology, work organisation, production and management, which lead to a higher labour productivity. The technological production preparation ensures the documentation processing, the proposal of semi-finished product, machines, fastening, measuring and calculation of necessary technological specifications for ensuring the production. In the final part, there is to be found the technical and economical evaluation of rationalization proposals, which numerically evaluates the analysed outputs of this thesis.
60

Geometric Rationalization for Freeform Architecture

Jiang, Caigui 20 June 2016 (has links)
The emergence of freeform architecture provides interesting geometric challenges with regards to the design and manufacturing of large-scale structures. To design these architectural structures, we have to consider two types of constraints. First, aesthetic constraints are important because the buildings have to be visually impressive. Sec- ond, functional constraints are important for the performance of a building and its e cient construction. This thesis contributes to the area of architectural geometry. Specifically, we are interested in the geometric rationalization of freeform architec- ture with the goal of combining aesthetic and functional constraints and construction requirements. Aesthetic requirements typically come from designers and architects. To obtain visually pleasing structures, they favor smoothness of the building shape, but also smoothness of the visible patterns on the surface. Functional requirements typically come from the engineers involved in the construction process. For exam- ple, covering freeform structures using planar panels is much cheaper than using non-planar ones. Further, constructed buildings have to be stable and should not collapse. In this thesis, we explore the geometric rationalization of freeform archi- tecture using four specific example problems inspired by real life applications. We achieve our results by developing optimization algorithms and a theoretical study of the underlying geometrical structure of the problems. The four example problems are the following: (1) The design of shading and lighting systems which are torsion-free structures with planar beams based on quad meshes. They satisfy the functionality requirements of preventing light from going inside a building as shad- ing systems or reflecting light into a building as lighting systems. (2) The Design of freeform honeycomb structures that are constructed based on hex-dominant meshes with a planar beam mounted along each edge. The beams intersect without torsion at each node and create identical angles between any two neighbors. (3) The design of polyhedral patterns on freeform surfaces, which are aesthetic designs created by planar panels. (4) The design of space frame structures that are statically-sound and material-e cient structures constructed by connected beams. Rationalization of cross sections of beams aims at minimizing production cost and ensuring force equilibrium as a functional constraint.

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