Thesis (Ph.D.)--Murdoch University, 2008. / Thesis submitted to the Faculty of Creative Technologies and Media. Includes bibliographical references (leaves 242-249)

No description available.

Thesis (Ph. D.)--University of New South Wales, 1995. / Also available online.

Thesis (Ph. D.)--University of New South Wales, 1995. / Completed at: University of New South Wales, School of Chemical Engineering and Industrial Chemistry. Title from electronic deposit form.

In a world that is constantly in need of a continuous, reliable and sustainable energy supply, concentrating photovoltaic technologies have the potential to become a cost effective solution for large scale power generation. In this light, important progresses have been made in terms of cell’s design and efficiency, but the concentrating photovoltaic industry sector still struggles to gain market share and to achieve adequate economic returns. The work presented in this thesis is focused on the development of innovative solutions for high concentrating photovoltaics receivers. The design, the fabrication and the characterization of a large cell assembly for high concentrations are described. The assembly is designed to accommodate 144 multijunction cells and is rated to supply energy up to 2.6kWe at 500 suns. The original outline of the conductive copper layer limits the Joule losses to the 0.7% of the global power output, by reducing the number of interconnections. All the challenges and the issues faced in the manufacturing stage are accounted for and the reliability of the fabrication has been proven by quality tests and experimental investigations conducted on the prototype. An indoor characterization shows the receiver’s potential to supply a short-circuit current of 5.77A and an open circuit voltage per cell of 3.08V at 500×, under standard test conditions, only 4.80% and 2.06% respectively lower than those obtained by a commercial single-cell assembly. An electrical efficiency of 29.4% is expected at 500 suns, under standard conditions. A prototype’s cost of $0.91/Wp, in line with the actual price of CPV systems, has been recorded: a cost breakdown is reported and the way to further reduce the cost have been identified and is accounted. In a second approach, the design of a natural convective micro-finned array to be integrated in a single cell receiver has been successfully attempted. Passive cooling systems are usually cheaper, simpler and considered more reliable than active ones. After a detailed review of micro-cooling solutions, an experimental investigation on the thermal behaviour of micro-fins has been conducted and has been combined with a multiphysics software model. A micro-finned heat sink shows the potential to keep the CPV temperature below 100°C under standard conditions and the ability to handle the heat flux when the cell’s efficiency drops to zero. Moreover, a micro-finned heat sink demonstrates the potential to introduce significant benefits in terms of material usage and weight reduction: compared to those commercially available, a micro-finned heat sink has a power-to-weight ratio between 6 and 8 times higher, which results in lower costs and reduced loads for the CPV tracker.

Thesis (Ph. D.)--University of Göteborg, Sweden. / Added t.p. with thesis statement and abstract inserted. Includes bibliographical references (p. [247]-264).

Diese Veröffentlichung fasst Ergebnisse des EU-Projektes "protransfer" zusammen. Aufbauend auf der Formulierung eines Leitbildes zur grenzüberschreitenden Zusammenarbeit von Transferakteuren werden deren notwendige Kompetenzen abgeleitet und Inhalte für entsprechende Qualifizierungsmodule aufbereitet.

Orientador: Renato Peixoto Dagnino / Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Geociencias / Made available in DSpace on 2018-08-22T03:07:10Z (GMT). No. of bitstreams: 1 Fraga_LaisSilveira_D.pdf: 1426112 bytes, checksum: 94309c1850bf0482c2cc3c65c7b96885 (MD5) Previous issue date: 2012 / Resumo: A ideia de transferência de conhecimento sempre esteve presente na relação entre universidade e sociedade. Ela está na origem do termo extensão e segue presente em toda a sua trajetória histórica. A partir dessa constatação, esta tese tem como objetivo central compreender as origens e as conseqüências da ideia de transferência de conhecimentos na atuação das ITCPs, compreendidas na trajetória histórica da extensão do país. Reconhecidamente, a primeira ITCP surge derivada da ideia das incubadoras de empresas, mas, em cada local, elas se conformam a partir da reorganização da extensão incentivada pelo processo de redemocratização que havia passado o país, da mobilização da universidade diante do desemprego e, por fim, do aumento do financiamento no governo Lula. Esses fatores levam parte da extensão a um novo caminho que tem como centro a geração de trabalho e renda e a utopia da autogestão. Com intuito de compreender a ideia de transferência de conhecimento, dois referenciais teórico-metodológicos foram utilizados de maneira complementar: a Educação e os Estudos Sociais da Ciência e da Tecnologia (ESCT). No campo da educação, foram abordadas as contribuições de educadores que partem de uma reflexão teórica sobre a relação entre universidade, trabalhadores e trabalhadoras combinada com a prática educativa no âmbito da extensão. Os autores são Paulo Freire, Michel Thiollent e Orlando Fals Borda. Buscou-se compreender, por meio deles, de que maneira a ideia de transferência de conhecimento se relaciona com um tipo específico de tutela, via conhecimento, entre educandos e educadores. A partir dos ESCT, campo acadêmico multidisciplinar que surge no contexto do pós-guerra, buscou-se compreender a relação entre conhecimento tecnocientífico e o setor produtivo, principalmente, a partir da negação do modelo ofertista de conhecimento. Tendo como fundamento a assertiva de que a ciência e a tecnologia são construções sociais, aprofundou-se a crítica à ideia de transferência de conhecimento por meio de três ideias-força: o conhecimento não é neutro, o conhecimento não gera apenas benefícios para a sociedade e o conhecimento não se transfere. Por fim, com intuito de contribuir com o processo de reflexão-ação das incubadoras, apontamos algumas reflexões e sugestões para tornar viável o potencial das mesmas como aglutinadoras do processo de politização da universidade. Nesse sentido, apontamos alguns caminhos do que acreditamos ser fazer ciência (e tecnologia) politizada, como almejava Oscar Varsavsky, ou Adequação Sociotécnica com o povo, como preconiza Renato Dagnino. Nessa perspectiva, consideramos que as ITCPs como potenciais articuladoras de ações de ensino, pesquisa e extensão com vistas a produzir conhecimento e formar pessoas a partir de uma lógica para além do capital / Abstract: The idea of knowledge transfer has always been present in the relationship between universities and society. It is at the heart of the term 'extension' and has remained present since its inception. From this observation, this thesis aims to understand the origins and the consequences of the idea of knowledge transfer in the field of Technological Incubators of Popular Cooperatives (ITCPs) throughout the history of extension in the country. Admittedly, the first ITCP arose from the idea of enterprise incubators, but in each location, they were formed from the reorganization of the extension, encouraged by the process of democratization that Brazil had recently been through, the mobilization of universities against unemployment and, finally, the increase of funding during Lula's presidency. These factors took a part of extension in a new direction that has at its center the generation of work and income and the utopia of self-management. In order to understand the idea of knowledge transfer, two theoretical and methodological tools were used in a complementary way: Education and the Social Studies of Science and Technology (SSTS). In the field of Education, this thesis addresses the contributions of educators who have done a theoretical analysis of the relationship between universities and workers combined with educational practice in the context of extension. The authors are Paulo Freire, Michel Thiollent and Orlando Fals Borda. We sought to understand, through the aforementioned educators, how the idea of knowledge transfer relates to a specific type of tutelage, via knowledge, among learners and educators. From the SSTS, a multidisciplinary academic field that arose in the context of the post-war period, we strove to determine the relationship between techno-scientific knowledge and the productive sector, especially from the denial of the model of supply and demand of knowledge. Using as a basis the assertion that science and technology are social constructions, this body of work deepens the critique of the idea of knowledge transfer through three key points: knowledge is not neutral, knowledge does not stop at generating benefits for society and knowledge is not transferred. Finally, in order to contribute to the process of reflection-action of the incubators, we provide some suggestions so that their potential, as agglutinating of the process of politicization of the university, is viable. In this regard, we indicate some ways of what we believe politicized science (and technology) should be like, as Oscar Varsavsky aimed for, or Sociology-technical Adequacy with the people, as advocated by Renato Dagnino. From this perspective, we considered ITCPs as potential vehicles for teaching, research and extension in order to produce knowledge and train people beyond the logic of capital / Doutorado / Politica Cientifica e Tecnologica / Doutora em Política Científica e Tecnológica

Diese Veröffentlichung fasst Ergebnisse des EU-Projektes "protransfer" zusammen. Aufbauend auf der Formulierung eines Leitbildes zur grenzüberschreitenden Zusammenarbeit von Transferakteuren werden deren notwendige Kompetenzen abgeleitet und Inhalte für entsprechende Qualifizierungsmodule aufbereitet.

As tecnologias verdes assumiram uma posição importante para o desenvolvimento da sustentabilidade global, e a transferência de tecnologias pode ser um mecanismo pelo qual as indústrias podem conquistar e manter sua competitividade no mercado e garantir a sustentabilidade, promovendo uma atitude de mudança e de acompanhamento das necessidades humanas, econômicas, sociais e ambientais da era atual. O objetivo geral da tese consistiu em desenvolver um modelo conceitual de processo de transferência de tecnologia verde para os Institutos de Ciência e Tecnologia brasileiros, tendo o NIT como o agente facilitador para a cooperação. Com a revisão sistemática da literatura realizada sobre os processos e modelos de transferência de tecnologia, foi possível verificar que ainda não existem modelos aplicados para tecnologias verdes. Através da ferramenta proposta para avaliar a estrutura de transferência de tecnologia, identificou-se quais as dimensões que integram o modelo e sua relação com os grupos de pesquisa e NITs. O modelo proposto elaborado consistiu em três macrofases: pré-transferência, desenvolvimento e pós-transferência. Através deste modelo é possível apontar, antecipadamente, as principais barreiras que impedem esse processo, além de fomentar desenvolvimentos científicos e tecnológicos futuros, capazes de influenciar de forma significativa nas indústrias, uma vez que anteciparia futuros problemas relativos à propriedade intelectual que possam inviabilizar a cooperação entre universidade-indústria no Brasil. / Green technologies have assumed an important role towards global sustainability development. Technology transfer processes could become the responsible mechanism for industries to assure and keep market competitiveness and sustainability, promoting a change of attitude and monitoring nowadays economical, social and human needs. The main purpose of this study was to develop a conceptual model of green technology transfer process for Brazilian Science and Technology Institutes, focusing on the Technology Transfer Offices (TTO) as the facilitators of such cooperation. Literature review on processes and methodology for technology transfer showed that there is no specific methods for green technologies. Through the proposed tool designed to evaluate technology transfer processes, it was possible to identify the dimensions integrated into the model and into the research group and TTOs. The elaborated model consists of three distinct phases: before, during and after technology transfer process. Such tool besides being able to point out, beforehand, the barriers which interfere negatively on such process, it is able to promote future scientific and technological development capable of significantly influence on industries specially because it can anticipate intellectual property issues that could undermine industry-university cooperation in Brazil.