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High temperature resistance and corrosion resistance make ceramic materials available for heat exchangers operating under high temperature or harsh chemical conditions. And the importance of the effect of flow maldistribution on thermal-hydraulic performance of heat exchangers has been demonstrated by a lot of researches. In this work, the nonuniformity of fluid flow is focused on to improve the performance...
In this paper, a dynamic competitive swarm optimizer (DCSO) based on population entropy is proposed. The new algorithm is derived from the competitive swarm optimizer (CSO). The new algorithm uses population entropy to make a quantitative description about the diversity of population, and to divide the population into two sub-groups dynamically. During the early stage of the execution process, to...
A prediction model of heterogeneous ignition temperature of coal char particles was built based on Support Vector Machine (SVM), in which there were four input vectors, which were moisture content, ash content, volatile content and fixed carbon of coal. A new optimization approach based on microscope principle was developed when identifying the optimal parameter pair of regularization parameter ??...
The generalized Lorenz system contains a class of three-dimensional autonomous quadratic chaotic systems, including Lorenz systems, Chen systems, Lu?? systems, unified chaotic systems and some other chaotic systems. In this paper, the impulsive synchronization of two generalized Lorenz systems is studied. By exploring the structure knowledge of the system, sufficient conditions are derived. In addition,...
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