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Determination of cell volume during equilibrium freezing process
A new type electronic particle counter (EPC, MultisizerTM 3, Beckman Coulter Inc., USA) was used to determine the volumes of human red blood cells (RBCs) in NaCl solutions of different osmolalities. The thermodynamics model describing cell response during freezing process was used to simulate the volume change of RBC in 0.9% NaCl solution during equilibrium freezing process. It was assumed that the effect of temperature on cell volume can be neglected compared to that of osmolality, then by using the phase diagram for the binary system sodium chloride/water, the osmolalities of the NaCl solution under different sub-zero temperatures can be obtained (converted from mass concentration), then the calculated values of RBC volumes can be validated by the experiments....
2020-11-10 09:33:08浏览：88
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循环水泵节能改造效果分析
针对循环水泵在设计和设备选型中余量过大,在实际运行工况中没有进行系统的合理匹配,造成能耗升高,存在比较严重的能源浪费现象,根据生产实际压力、流量等状况,通过一种新型的市场化节能机制,达到循环水系统优化运行、满足生产需求和节能降耗目的....
2020-06-12 15:56:42浏览：1408
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循环水泵节能改造效果分析
针对循环水泵在设计和设备选型中余量过大,在实际运行工况中没有进行系统的合理匹配,造成能耗升高,存在比较严重的能源浪费现象,根据生产实际压力、流量等状况,通过一种新型的市场化节能机制,达到循环水系统优化运行、满足生产需求和节能降耗目的....
2020-03-24 08:11:02浏览：1458
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