793 resultados para Biometano,upgrading,biogas


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On 29 November 2012, the General Assembly of the United Nations (UN) voted overwhelmingly to accord Palestine ‘Non-Member Observer State’ Status in the UN. In the first part of this Policy Brief, the implications of upgrading the status of Palestine with regard to the possible role of the International Criminal Court (ICC) will be assessed. In April 2012, the Office of the Prosecutor of the ICC declined to accept jurisdiction for acts committed on the territory of Palestine since 1 July 2002, justifying its decision based on the fact that Palestine had, at the time, only the status of an ‘Observer Entity’ at the UN. Subsequently, it will be analysed if the Palestinian pursuit of its cause before the ICC can be considered as an effective lawfare strategy or rather as a poisoned chalice.

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Mode of access: Internet.

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Turner-Fairbank Highway Research Center, McLean, Va.

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Turner-Fairbank Highway Research Center, McLean, Va.

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Federal Highway Administration, Washington, D.C.

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Mode of access: Internet.

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"This seminar publication contains materials prepared for the U.S. Environmental Protection Agency Technology Transfer Program and presented at industrial pollution-control seminars for the textile industry. This publication was coordinated by the Institute of Textile Technology, Charlottesville, Va."

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Final report; September 1976.

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Customer Base Analysis is perhaps the first stage of analysis in customer value, aiming to predict purchase frequency and customer lifecycle. An important part of the customer purchase frequency and its retention has to do with the service upgrade. Many models have tried to predict purchase frequency as well as upgrading. The comparison of these models seems important to provide academics with a picture of the current situation. The purpose of this research is to evaluate how models can predict service upgrade among a customer database of an online DVD rental company and suggest an alternative based on data mining techniques and data on historical transactions.

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Fast pyrolysis liquid or bio-oil has been used in engines with limited success. It requires a pilot fuel and/or an additive for successful combustion and there are problems with materials and liquid properties. It is immiscible with all conventional hydrocarbon fuels. Biodiesel, a product of esterification of vegetable oil with an alcohol, is widely used as a renewable liquid fuel as an additive to diesel at up to 20%. There are however limits to its use in conventional engines due to poor low temperature performance and variability in quality from a variety of vegetable oil qualities and variety of esterification processes. Within the European Project Bioliquids-CHP - a joint project between the European Commission and Russia - a study was undertaken to develop small scale CHP units based on engines and microturbines fuelled with bioliquids from fast pyrolysis and methyl esters of vegetable oil. Blends of bio-oil and biodiesel were evaluated and tested to overcome some of the disadvantages of using either fuel by itself. An alcohol was used as the co-solvent in the form of ethanol, 1-butanol or 2-propanol. Visual inspection of the blend homogeneity after 48 h was used as an indicator of the product stability and the results were plotted in a three phase chart for each alcohol used. An accelerated stability test was performed on selected samples in order to predict its long term stability. We concluded that the type and quantity of alcohol is critical for the blend formation and stability. Using 1-butanol gave the widest selection of stable blends, followed by blends with 2-propanol and finally ethanol, thus 1-butanol blends accepted the largest proportion of bio-oil in the mixture. © 2013 Elsevier Ltd. All rights reserved.