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]. Engineering Geology, 2019, 260: 105222. DOI: https://doi.org/10.1016/ j.enggeo.2019.105222. [13] MCSAVENEY M J, DAVIES T R. Surface energy is not one of the energy losses in rock comminution [J... J. Cent. South Univ. (2021) 28: 848-865 DOI: https://doi.org/10.1007/s11771-021-4649-2 Experimental study on energy storage and dissipation characteristics of granite under two-dimensional......
system operation for air-source heat pumps (ASHPs). A novel reverse-cycle defrosting (NRCD) method based on thermal energy storage to eliminate frost off the outdoor coil surface was developed. Comparative... be absorbed and stored in the PCM. When defrost became necessary, the heat stored in the PCM-HE could be used so as to provide sufficient thermal energy to melt the frost off the outdoor coil surface. ......
reaction. At the same time, the incessant impact reduces the size of particles and allows their fresh surface to come into further contact, proceeding the energy conversion reactions. After milling... Ni(OH)2 particles synthesized by high energy ball milling LIU Yuan-gang(刘元刚), TANG Zhi-yuan(唐致远), XU Qiang(徐 强), ZHANG Xiao-yang(张晓阳), LIU Yong(柳 勇) School of Chemical Engineering and Technology......
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show that during the slacking process of red sandstone in nature environment, its new surface energy increases accompany with the particle size decreases. When its new surface energy increases..., crushing and envelope are adopted to minimize the contact surface of red-bed soft rock and external environment, which can cut off the energy source needed in soft rock disintegration and delay its......
of molten lead was investigated in the temperature range of 923-1123 K. The microstructure of the lead/substrate interface was observed by SEM. The surface free energy of alumina substrates was calculated by the geometrical average method. When the surface roughness of the substrate increased from 0.092 to 2.23 μm, the surface free energy increased gradually, ranging from 13.356 to 39.998......
,Central South University, Changsha 410083, China) Abstract: Surface energy parameters of pyrite mineral and Thiobacillus ferrooxidans were obtained by calculating according to deduced formula of Youngs equation and contact angel. The results show that surface energy of Thiobacillus ferrooxidans is much higher than that of pyrite mineral. By thermodynamics approach, the interaction free energy......
of the two kinds of surfaces are also analyzed. The results show that the surface energy of Ti-terminated is lower in much wider range compared with that of B-terminated surface. So it can be believed that Ti-terminated surface maybe the stable TiB2 (0001) surface. Key word: TiB2 (0001) surface; density functional theory; surface relaxation; surface energy  ......
Effects of microorganisms on surface properties of chalcopyrite and bioleaching CHEN Ming-lian(陈明莲), ZHANG Lin(张 麟), GU Guo-hua(顾帼华), HU Yue-hua(胡岳华), SU Li-jun(苏丽君) School of Minerals...; Abstract: The alteration of surface properties of chalcopyrite after biological......
J. Cent. South Univ. (2016) 23: 2550-2557 DOI: 10.1007/s11771-016-3316-5 Improving energy utilization efficiency of electrical discharge milling in titanium alloys machining GUO Cheng-bo(郭成波)1, WEI... for titanium alloys machining and it was proven that its machining efficiency can be improved to compete with mechanical cutting. In order to improve energy utilization efficiency of ED-milling process......