Orientador: Bernardo Caro / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Artes / Made available in DSpace on 2018-07-20T10:01:12Z (GMT). No. of bitstreams: 1 Fernandes_CarlosRoberto_M.pdf: 3307994 bytes, checksum: e0ad4171cff491de1b2a461a66250a3b (MD5) Previous issue date: 1995 / Resumo: Ao iniciarmos o desenvolvimento deste trabalho enfocando a fenomenologia da cor, procuramos estabelecer condições para o entendimento correto das particularidades que nos levam a diferenciar a reflexão da luz, suas alterações em relação ao ambiente, objetos e , a utilização dos conhecimentos científicos, a evolução da tecnologia, aplicados às diferentes necessidades de representação e expressão através de variações cromáticas. As classificações que se sucederam através dos séculos, suas concordâncias e contradições, apresentam-se como caminho para a compreensão dos diferentes sistemas de representação cromática. À classificação equivocada do vermelho, como cor primária do sistema subtrativo, procuramos contrapor o que é aceito por autores e pesquisadores contemporâneos, e evidenciar algumas dúvidas admitidas 'por aqueles que primeiro se ocuparam dessa busca entusiasmadora. Além do vermelho, as outras cores do espectro apresentam-se para nossa análise e considerações. Com o objetivo de contribuir para dirimir dúvidas, tanto no ensino da classificação de cores nos cursos de primeiro e segundo graus, como nas discussões articuladas nos cursos universitários que se ocupam do assunto, empreendemos a produção do material ilustrativo que acompanha este texto. Nossa atenção firmou-se, sempre, na relação cor-luz, corpigmento, entendendo que um sistema não exclui o outro, pelo contrário, confirmam-se / Abstract: The present thesis focuses on the phenomenon of color. lnitially,an attempt is made to establish conditions for the comprehension of those peculiarities which lead to the need for a distinction between the actual reflection of light and the alterations in such reflection brought about by specific objects or environments. Scientific and technological advances in chromatology have also been explored in relation to the necd for representation and expression of chromatic variation. The similarities and differences involved in the classification of color which have come down to us through the centuries suggest how different systems of chromatic representation can be understood. Special emphasis is given here to the contrast between the traditional, yet erroneous, classification of red, a primary color in the subtractive system, and that which is general1y accepted by professional chromatologists today, and various problems perceived by such researchers are investigated. The other colors of the spectrum, however, are also investigated and analyzed. ln an attempt to clarify the situation for the teaching of the classification of color in elementary and secondary art classes, as well as for discussions conducted in university courses where color is of primary importance, we have produced illustrative material and have reproduced it here. The emphasis on the relation between colorllight and colori pigment is maintained throughout, since it is understood that these are complementary aspects, rather than mutually exclusive concepts / Mestrado / Mestre em Artes

Previous coreflood experiments show that CO2 sequestration in carbonate rocks is a win-win technology. Injecting CO2 into a depleted gas reservoir for storage also produces hitherto unrecoverable gas. This in turn helps to defray the cost of CO2 sequestration. This thesis reports the results from experiments conducted on a Berea sandstone core. The experiments include displacement experiments and unconfined compressive strength tests. The displacement experiments were conducted at cell pressures of 1500 psig and temperature of 60oC using a 1 foot long and 1 inch diameter Berea sandstone core. Pure CO2 and treated flue gas (99.433 % mole CO2) were injected into the Berea sandstone core initially saturated with methane at a pressure of 1500 psig and 800 psig respectively. Results from these experiments show that the dispersion coefficient for both pure CO2 and treated flue gas are relatively small ranging from 0.18-0.225 cm2/min and 0.28-0.30 cm2/min respectively. The recovery factor of methane at break-through is relatively high ranging from 71%-80% of original gas in place for pure CO2 and 90% to 92% OGIP for treated flue gas, the difference resulting from different cell pressures used. Therefore it would appear that, in practice injection of treated flue gas is a cheaper option compared to pure CO2 injection. For the unconfined compressive strength tests, corefloods were first conducted at high flowrates ranging from 5 ml/min to 20 ml/ min, pressures of 1700-1900 Psig and a temperature of 65oC. These conditions simulate injecting CO2 originating from an electric power generation plant into a depleted gas reservoir and model the near well bore situation. Results from these experiments show a 1% increase in porosity and changes in injectivity due to permeability impairment. The cores are then subjected to an unconfined compressive strength test. Results from these tests do not show any form of weakening of the rock due to CO2 injection.

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Made available in DSpace on 2014-10-09T12:32:47Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:08:32Z (GMT). No. of bitstreams: 1 03473.pdf: 1345873 bytes, checksum: c84cb3f38a6cd9b74002f62ae4817f88 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

No description available.

This study investigated distributions and the concentrations of polycyclic aromatic hydrocarbons (PAHs) in the sediment cores in southern continental shelf of Kao-Ping submarine canyon. The sediment cores collected were analyzed for PAHs to reconstruct historical record of PAH contamination and to find out the possible sources, trends and fluxes. The findings demonstrated the average concentrations of PAHs in the northern continental shelf of Kao-Ping submarine canyon were higher than in the southern continental shelf. The average concentrations of £U51 PAHs and £U16 PAHs ranged from 578 to 697 and from 132 to 173 ng/g , respectively. Because particle sedimentation rates and PAH sources were different along cores, vertical distributions of PAH concentrations among cores were not the same. Identification by diagnostic ratios and result of hierarchical cluster analysis (HCA) suggesting PAHs in the core of northern continental shelf were from pyrogenic and petrogenic sources, while those in the cores of southern continental shelf were from petrogenic source. Compared with sediment quality guidelines (SQGs), most of the sample sediment cores are below the outlined criteria. Only the PAH concentrations of the sediments between 2-16 cm in the core L27 were higher than the Threshold Effect Level (TEL) value. Total PAH concentrations in this study were lower than those from other coastal areas in literature. According to the PAH concentrations along cores in the southern continental shelf, significant increase of total PAH concentrations was evident in the early 1900s. Our results also demonstrate that PAH concentrations and sources in the southern continental shelf area related to the increasing industrial activities in Kao-Ping coastal area.

Thesis (Ph. D.)--University of Queensland, 2003. / Includes bibliographical references.

No description available.

Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1991. / Vita. Abstract. Includes bibliographical references (leaves 140-141). Also available via the Internet.

Thesis (Professional Degree)--University of Missouri, School of Mines and Metallurgy, 1922. / The entire thesis text is included in file. Typescript. Illustrated by author. Title from title screen of thesis/dissertation PDF file (viewed June 10, 2009) Includes bibliographical references (p. 9).