Based the first law of thermodynamics, how to judge the absorption or liberationof heat in the guasi-static infinitesimal process of ideal gas was discussed for the efficiency of engine.
依据热力学第一定律,针对热机循环效率,讨论如何判断理想气体准静态微过程中的吸热和放热。
A stripe-gate microfilter has been designed and produced on the silicon by the MEMS technology,the linewidth and the period of that are 14 μm and 40 μm,respecting.
In this study, with fresh porcine blood as raw material, Centrifuge, Ultrafiltration and Spray-dry technologies were adopted to determine the production process of plasma protein.