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Jiuzhaigou National Park (JNP) is a site of global conservation significance. Conservation policies in JNP include the implementation of two national reforestation programs to increase forest cover and the exclusion of local land-use. We use archaeological excavation, ethnographic interviews, remote sensing and vegetation surveys to examine the implications of these policies for non-forest, montane...
With the help of the Simulink toolbox of MATLAB the dynamic simulation model of PMLSM is built. Then according to the principle of robust controlling and the features of robust H∞ controller. The control system modeling and simulation experiments by use of the Simulink toolbox of MATLAB is designed. and the results show that the controller not only has the good tracking performance for the speed controller,...
The refrigerant mass flow distribution in a two phase fluid network of multi-connected air conditioning units (MAU) is generally uniform in the available literature based on the assumption that the fluid resistance of the pipes connecting the evaporators is ignored. However, such a fluid network of multiple evaporators and connecting pipes is actually a complex two phase direct return system, which...
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