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Accessibility, quality, and performance of government websites and portals are key issues for e-government programmes. Although the number of government sites has increased rapidly in the past few years, their ultimate success will largely depend on their accessibility, quality and performance. This paper reports the results of an evaluative study of 19 e-government websites and portals using a common...
This paper evaluates performance merits of CO 2 and R134a automotive air conditioning systems using semi-theoretical cycle models. The R134a system had a current-production configuration, which consisted of a compressor, condenser, expansion device, and evaporator. The CO 2 system was additionally equipped with a liquid-line/suction-line heat exchanger. Using these two systems, an...
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