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The thermal finite element model of the power module based on the actual physical conditions is not easy to be consistent with the experimental results, limited by the accuracy of the input conditions. In this paper, a method of calibrating the transient thermal finite element model using the measured thermal structural function is proposed and practiced. The structural functions derived from the...
A permeation theoretical model is proposed based on competitive adsorption for estimating the permeation effect on the stored vacuum electronic devices (VED) surrounded by mixture gases, in which the parameters are determined by experimental results. The life expectation that the pressure inside a stored VED rises to the critical value, induced by permeation, is also set up based on the model. As...
The oxidative modification of activated carbon was carried out using HNO3, H2O2 and H2SO4, respectively. The supported Fe2O3/AC and Fe2O3-( CeO2, La2O3, ZrO2) /AC were prepared by impregnation precipitation method using urea as precipitant. The modified supports and catalysts were characterized by methods of Boehm titration, N2 physical adsorption and X-ray diffraction. The reduction of SO2 by CO...
Deep color and high concentration of organic compounds are the important characteristics of Chemithermomechanical pulp (CTMP) effluent. The objectives of this study are to investigate the feasibility of removing the color of eucalyptus CTMP chemical pretreatment effluent with zero-valent iron (Fe (0)) and to examine the effect of Fe (0) treatment on biodegradability enhancement of the effluent. The...
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