992 resultados para Street art -- Catalonia


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Collection : Archives de la linguistique française ; 169

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Collection : Archives de la linguistique française ; 320

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Collection : Archives de la linguistique française ; 363

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Thermal energy storage (TES) can increase the thermal energy effieresa, of a process by reusing the waste heat from industrial process, solar energy or other sources. There are different ways to store thermal energy: by sensible heat, by latest heat, by sorption process or by chemical reaction. This thesrs provides a-state-of-the-art review of the experimental performance of TES systems based on solid gas sorption process and chemical reactions. The importance of theses processes is that provides a heat loss free storage system with a high energy density.

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Life cycle analysis (LCA) is a comprehensive method for assessing the environmental impact of a product or an activity over its entire life cycle. The purpose of conducting LCA studies varies from one application to another. Different applications use LCA for different purposes. In general, the main aim of using LCA is to reduce the environmental impact of products through guiding the decision making process towards more sustainable solutions. The most critical phase in an LCA study is the Life Cycle Impact Assessment (LCIA) where the life cycle inventory (LCI) results of the considered substances related to the study of a certain system are transformed into understandable impact categories that represent the impact on the environment. In this research work, a general structure clarifying the steps that shall be followed ir order to conduct an LCA study effectively is presented. These steps are based on the ISO 14040 standard framework. In addition, a survey is done on the most widely used LCIA methodologies. Recommendations about possible developments and suggetions for further research work regarding the use of LCA and LCIA methodologies are discussed as well.

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Les emulsions concentrades o altament concentrades de betum són un camp molt poc estudiat avui en dia. El treball és un estat de l'art de tots els papers que hi ha sobre aquest tema desde el mètode tradicional fins el HIPR (High Internal Phase Ratio).

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Un recorregut per la historia de les edicions d'artista a Catalunya a través de la cultura visual i l'art contemporani. Amb l'edició independent i la xarxa digital com dues eines fonamentals tan pels artistes -pels beneficis que l'edició pot proporcionar a la seva visibilitat i l'evolució professional- com pels diferents agents -veuen en ella l'oportunitat de generar nous formats de relació amb el públic- que tenen la voluntat de treballar amb i per aquest subsector de l'últim art contemporani. Un àmbit que avui gaudeix d'una situació creativa i productiva molt interessant i fructífera.