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Objectives: We sought to assess the ability of the ''biphasic'' response (i.e., initial improvement in wall thickening followed by reduced wall thickening) during serial dobutamine stress echocardiography to detect ischemia in patients with a wall motion abnormality. Furthermore, we compared the power of the biphasic echocardiographic response with that of myocardial perfusion imaging for the detection...
A one-dimensional, steady-state model for an entrained flow coal gasifier is developed, incorporating thermogravimetric analysis data on a bituminous coal. The model is based on mass and energy balances, heterogeneous reaction rates and homogeneous gas-phase equilibria. The resulting set of non-linear mixed ordinary differential-implicit algebraic equations was solved by a modified Euler method...
The entrained flow gasification model developed in Part 1 was used for parametric studies to provide a better understanding of the reactor performance in terms of coal conversion, product gas composition, calorific value and temperature profiles throughout the reactor under various operating conditions (feed flow rate, particle size and system pressure). The results suggest that the critical parameters...
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