1000 resultados para Gerenciamento de carbono


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Dissertação (mestrado)—Universidade de Brasília, Instituto de Química, Programa de Pós-Graduação em Tecnologias Química e Biológica, 2016.

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Resumen Este trabajo analiza algunos aspectos de las negociaciones e iniciativas que intentan enfrentar el cambio climático a nivel internacional, poniendo énfasis en los mecanismos de compensación y la creación de los mercados de carbono, su significado en relación a  la creación dederechos de propiedad sobre la contaminación de la atmósfera” y en relación a la efectividad  que estos esquemas tienen para  enfrentar el Cambio Climático. Asimismo, se analiza su vinculación con la propuesta del actual gobierno de Costa Rica (Oscar Arias Sánchez, 2006-2010) denominada “Costa Rica, Carbono Neutral para el año 2021” y su pertinencia para enfrentar el Cambio Climático en nuestro país.  Abstract This document analyzes some aspects of the international negotiations and initiatives that intent to face out Climate Change. It put emphasis on the offset mechanisms and carbon markets, their meaning in terms of the creation of “property” over the atmosphere contamination rights and in term of their efficiency to face the Climate Change.  It also analyzes the relationship of these initiatives with the actual Costa Rican Government (Oscar Arias Sánchez, 2006-2010) proposal, named “Costa Rica, Carbon Neutral 2021” and its adequacy to confront Climate Change in the country.

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In general, among the corrosion inhibitors surfactants are the most commonly used compounds, because they are significantly effective by forming protective films on anodic and cathodic areas. In this study, microemulsions containing he biodegradable saponified coconut oil as surfactant (SME-OCS) was used as green corrosion inhibitors. With this purpose, methanolic extracts of Ixora coccinea Linn (IC) and a polar fraction rich in alkaloids (FA) obtained from Croton cajucara Benth solubilized in the SME-OCS system were examined in the presence of AISI 1020 carbon steel, in saline solution (NaCl 3,5 %). The efficiency of corrosion inhibition of IC and FA were evaluated in the following microemulsions: SME-OCS-IC and SME-OCS-FA. The microemulsion system SME-OCS in the presence and absence of IC and FA was assessed by measurements of weight loss and the electrochemical method of polarization resistance, with variation in the concentration of IC and FA (50 - 400 ppm), showing significant results of corrosion inhibition (83,6 % SME-OCS; 92,2 % SME-OCS-FA; and 95,3 % SME-OCS-IC)

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Dissertação (mestrado)—Universidade de Brasília, Faculdade de Tecnologia, Departamento de Engenharia Elétrica, 2016.

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Dissertação de Mestrado, Engenharia Biológica, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2014

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Dissertação de mestrado, Avaliação e Gestão Ambiental, Universidade do Algarve, 2011

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Realizar un estudio íntegro de la literatura sobre los indicadores de sostenibilidad ambiental cuya trascendencia y ponderación los coloca como los más importantes en la actualidad

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Tese (doutorado)—Universidade de Brasília, Centro de Desenvolvimento Sustentável, 2015.