Clean Technology
Mostrando 25-36 de 52 artigos, teses e dissertações.
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25. Production, purification and partial characterization of invertase obtained from solid state cultivation of Aspergillus casiellus on soybean substrate / ProduÃÃo, purificaÃÃo e caracterizaÃÃo parcial da invertase obtida por fermentaÃÃo em estado sÃlido de soja com Aspergillus casiellus
The invertase, enzyme found in yeast, above all in the Sacharomyces cerevisiae species, invertebrate, vertebrate, green alga, bacteries, vegetal and fungus, is one of the principal accountable for sucrose hydrolysis to form the inverted syrup, is used by the food industry and pharmacy, in the hydrolyses of rafinose, inulin and gentianose. In the present work
Publicado em: 2009
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26. Principais aplicações das microondas na produção e refino de petróleo
Microwave irradiation offers a clean, inexpensive, and convenient method of heating, which is an alternative way of introducing energy into chemical systems. In particular, applications of microwave irradiation technology for petroleum processing have been developed in the last twenty years. The main objective of this paper is to review the use of microwave
Química Nova. Publicado em: 2008
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27. The Brazilian solar heater : theory and practice in favor of a sustainable transfer of technology / O aquecedor solar brasileiro : teoria e pratica em prol de uma transferencia de tecnologia sustentavel
This research represents a contribution to the hydric resources, energetics and environmental, serving as a technical aid to the energetical planning per the demand side, acting favorably on the stability of the conventional electrical systems. It has been studied a reduction on the manufacturing cost of an industrialized solar heater that performs well duri
Publicado em: 2008
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28. Monoglicerídeos: produção por via enzimática e algumas aplicações
Monoglycerides (MAG) are non-ionic surfactants, widely used in the pharmaceutical, food and cosmetic industries. Although MAGs are manufactured on an industrial scale by chemical glycerolysis of oils and fats, new developments in lipase catalyzed synthesis have been studied as an alternative to the classical method seeking to use clean technology and green c
Química Nova. Publicado em: 2008
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29. Itaipu hidroelectric power plant turbinable energy use in hydrogen buses : case study in Foz do Iguaçu city / Aproveitamento da energia vertida turbinavel da UHE Itaipu para uso em onibus a hidrogenio : estudo de caso em Foz do Iguaçu
Facing today s energy crisis and the resulting environmental situation, society is searching to reduce those environmental impacts resulting principally from intensive use of fossil fuels. For the transport sector, one of these alternative solutions is to encourage collective transport based on clean technology, like fuel cell use. In this work an alternativ
Publicado em: 2008
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30. Síntese, caracterização e avaliação catalítica do silicoaluminofosfato SAPO-11 sulfatado
Due to environmental restrictions around the world, clean catalytic technology are of fundamental importance in the petrochemical industry and refineries. Creating the face of this a great interest in replacing the liquid acids for solid acids, so as molecular sieves have been extensively studied in reactions involving the acid catalysis to produce chemical
Publicado em: 2008
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31. Electricity generation from the offshore wind energy source. / Geração de energia elétrica a partir da fonte eólica offshore.
In the last decade wind power source was the fastest-growing energy source. Technological learning curves for this sector fall down by a 15% a 20% rate each 3 years. Countries which are committed with wind power are running after the target of 12% wind into the worlds electrical production by 2020. The contribution of the offshore wind power (OWP) source is
Publicado em: 2008
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32. Efficiency for the processes of production, processing, quality control and marketing of soybean seeds. A case study in the state of Paraná / Eficiência nos processos de produção, beneficiamento, controle de qualidade e comercialização de sementes de soja, um estudo de caso no estado do Paraná
Soybean is by far the most important crop in Brazil, occupying the largest area and leading the exports from the agriculture sector. The use of high quality seeds is indispensable to achieve high yield potential, and this work aimed at establishing the efficiency of the different processes that drive seed production, post harvest technology and commerce of s
Publicado em: 2008
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33. Abordagem ambiental em livros didáticos de ciências de 1 a 8 série em 1983 e 2008: um estudo comparativo
This research developed in the Research Group Philosophy and Education EDUCOGITANS, group that acts adjoining the Post Graduation in Education Program Mastering in Education of the Regional University of Blumenau, reports the challenge to develop of the goods production, to promote well-being and high technology with environmental preservation and to maintai
Publicado em: 2008
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34. Desenvolvimento de ferramentas para manipulação e geração de arquivos MIDI-SMF em linguagem funcional clean
One of the main goals of this work is to produce didactic material that allows a programmer or a musician to implement qualified multimedia applications by using a low level MIDI protocol and the SMF format 0 and 1. A chapter is dedicated to make clear all the concepts and solutions that involve MIDI in the polyphonic and multiinstrumental music. The author
Publicado em: 2007
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35. Avaliação de diferentes tratamentos termicos e condições de em balagem sobre a vida-de-prateleira do leite fluido com enfase no julgamento de defeitos de sabor. / Evaluation of different thermal treatment and package conditions about fluid milk shelf life emphasinzing the judgement off flavor defects.
Searching the improvement of quality, to please a more and more demanding customer, the industry tries to increase the shelf-life of milk using efficient and less expensive technology. As an example of these technologies, the quality of raw material, thermal treatment, temperature control in the storage and packing systems can be included. Milk life can be i
Publicado em: 2007
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36. Desenvolvimento de um protÃtipo de rastreador solar de baixo custo e sem baterias
In the last fifty years, the use of solar energy in the world has been growing considerably in its principal modalities: thermal and photovoltaic. Although there has been significant evolution of the photovoltaic technology along the last decades, the cost of the energy produced by those systems is still expensive when compared to the energy produced by conv
Publicado em: 2007