Yang-deficiency constitution exhibits the characteristics of polygenic inheritance. This pilot study suggests that the polymorphisms in RGS6, mGluR5, GAPDHL19, and IKZF1 are associated with changes in cyclic adenosine monophosphate and cyclic guanosine monophosphate levels, memory, metabolic energy status, and immune function, respectively in people with yang-deficiency constitution.
High power density is a trend of power electronic equipment development, but high power density will inevitably lead to high power consumption per unit volume. Due to the limitation of environmental conditions, some equipment can only use air cooling method, but the conventional way of air-cooled cooling is difficult to meet the requirements of reasonable temperature rise. Therefore, a new type of thermal resistance model is put forward, by using the good isothermal performance and high thermal conductivity of the heat pipe, the surface embedded composite heat dissipation substrate is made, which greatly reduces the diffusion thermal resistance, at the same time, and uses a new type of thermal conductivity material to reduce the contact thermal resistance. In order to improve the efficiency of thermal design, several mathematical inequalities are established, and the calculation of thermal resistance is transformed into a single objective optimization problem with multiple constraints. MATLAB is used to solve many discrete solutions, and then the finite element simulation software is used to further optimize. Finally, the temperature rise test of the prototype shows that the heat dissipation efficiency is increased by three times.
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