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Zhi Dou, Xin Huang, Weifeng Wan, Feng Zeng and Chaoqi Wang
Hydraulic conductivity generally decreases with depth in the Earth?s crust. The hydraulic conductivity?depth relationship has been assessed through mathematical models, enabling predictions of hydraulic conductivity in depths beyond the reach of direct m...
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Weifeng Yan, Ruoyu Feng and Hexi Baoyin
Stable landing on asteroids is of considerable scientific and economic value but accompanied by huge difficulties. This paper proposes a novel flexible lander suitable for asteroids with microgravity and rugged surface. The gravity model with the artific...
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Weifeng Wu, Zhao Zhang, Xiaolin Wang, Liangwei Yang and Quanke Feng
Refrigeration oil has a large effect on the performance of refrigeration systems. However, the physical and chemical indexes of fresh refrigeration oils often fail to reflect the actual operating characteristics, especially with respect to the degradatio...
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Weifeng Feng, Frank G. Shi, Yongzhi He, and Bin Zhao
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Weifeng Feng and Frank G. Shi
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