共搜索到12501条信息,每页显示10条信息,共1251页。用时:0小时0分2秒656毫秒
of hard water on selective flocculation of diasporic bauxite was tested and the measures were taken to eliminate the effects of Ca2+ and Mg2+ in hard water. The results indicated that, not only the concentration of electrolyte ions but also the ionic valence of the electrolyte ions affects the settling behavior of kaolinite; hard water significantly affects its selective flocculation owing to Ca2......
which an influence is rare in toward processing material like heat being only water fundamentally, and economical,and the characteristics is hard to get are given. There is some research about...Residual Stress Improved by Water Jet Peening for A Quenched Gear Vincent JI1,R.Oba2,T.Uchiyama2,H.Tsuda3,Dong-Ying Ju4 (1.LM3, ENSAM University, 151, Boulevard de l'Hopital 75013, Paris, France......
Effect of surface nanocrystallization and PPEC time on complex nanocrystalline hard layer fabricated by plasma electrolysis M. ALIOFKHAZRAEI1, SH. AHANGARANI2, A. SABOUR ROUHAGHDAM1 1. Department... that there is an optimum level for time on surface roughness increasing (difference between two measured data). Key words: surface nanocrystallization; hard layer; roughness; CP-Ti  ......
results under the influence of both rock mechanics and drilling fluid chemistry. For the reason that there are small contents of water sensitivity minerals in hard brittle shale, the effect of hydrate...J. Cent. South Univ. (2016) 23: 3256-3261 DOI: 10.1007/s11771-016-3391-7 Coupled effects of stress damage and drilling fluid on strength of hard brittle shale WANG Wei(汪伟), DENG Jin-gen(邓金根), YU Bao......
element. This makes Cu+ and Cl- easily separate out from water solution( is 1.7×10-7 for CuCl). In the theory of soft-hard acid alkali[7], Cu+ belongs to soft acid and its bonding with Cl- results... Disposal of cuprous chloride waste water XUE Juan-qin(薛娟琴), MAO Wei-bo(毛维博), WANG Yu-jie(王玉洁), LI Jing-xian(李京仙), WU Ming(吴 明), LU Xi(卢 曦) School of Metallurgical Engineering, Xi......
pressure water jet combined cutting system is an effective technology to cut hard coal-rock, but one problem of the technology is the choice of pick and nozzle location parameters. In order to solve... cutting; location parameter; water jet; mining seepage theory; hard coal-rock......
], in the Han River to Wei River water diversion project in China where massive and hard granite, quartzite and diorite were encountered, the penetration rate of an 8.02 m diameter TBM was 2.4 m/h... J. Cent. South Univ. (2021) 28: 454-480 DOI: https://doi.org/10.1007/s11771-021-4615-z TBM tunneling in extremely hard and abrasive rocks:Problems, solutions and assisting methods ZHENG Yan-long(郑彦......
J. Cent. South Univ. Technol. (2011) 18: 1902-1909 DOI: 10.1007/s11771-011-0921-1 A novel experimental system for performance evaluation of water powered percussive rock drill LI Xi-bing(李夕兵), LI Zhi... Heidelberg 2011 Abstract: A set of water powered excavation test system was developed for the comprehensive performance testing and evaluation of water powered percussive rock drill indoors. The whole......
J. Cent. South Univ. (2021) 28: 361-369 DOI: https://doi.org/10.1007/s11771-021-4608-y Green large-scale production of N/O-dual doping hard carbon derived from bagasse as high-performance anodes... Nature 2021 Abstract: Sodium-ion batteries are considered as a promising candidate for lithium-ion batteries due to abundant sodium resources and similar intercalation chemistry. Hard carbon derived......
Influence of intermediate principal stress on failure mechanism of hard rock with a pre-existing circular openingZHANG She-rong(张社荣)1, SUN Bo(孙博)1, 2, WANG Chao(王超)1, YAN Lei(严磊)3, 4(1. State Key Laboratory of Hydraulic Engineering Simulation and Safety (Tianjin University),Tianjin 300072, China;2. China Water Resources Beifang Investigation, Design and Research Co. Ltd, Tianjin 300222, China;3......