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The placenta plays a pivotal role in the maintenance of normal pregnancy, but how it forms, matures, and performs its function remains poorly understood. Here, we describe a novel mouse line (Prl3d1‐iCre) that expresses iCre recombinase under the control of the endogenous prl3d1 promoter. Prl3d1 has been proposed as a marker for distinguishing trophoblast giant cells (TGCs) from other trophoblast...
Considering the viscosity of the hydraulic oil, seal materials, and oil properties, oil temperature is usually controlled by means of oil coolers, heaters or increase the volume of oil reservoir in most equipment. But for specific machines such as tank vehicles, air crafts or space crafts, high power density is needed. These machines have to endure high oil temperature over 403K. Among common hydraulic...
The static characteristics model of the gear motor was established by both theoretical derivation and parameters calculation. The static model included torque, flow rate and efficiency were established by the idea of torque balance and flow rate balance based on gear theory and fluid dynamics. An optimum design was carried out for the highest efficiency. The optimum values of in the model which affect...
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