共搜索到3764条信息,每页显示10条信息,共377页。用时:0小时0分0秒468毫秒
号:TU457 文献标志码:A 文章编号:1672-7207(2013)05-2088-05 Limit equilibrium calculation of safety factor for JRC-JCS slope liu ziyou (School of Civil Engineering, Hunan University of City, Yiyang 413000, China) Abstract: In order to use limit equilibrium method to calculate the safety factor of the slope based on JRC-JCS......
show that only ZnO solid exists in the equilibrium state in the low concentration alkali regions, and the solubility of zinc oxide is almost invariable with temperature. With the increase of alkali concentration, equilibrium solid turns from ZnO to NaZn(OH)3 suddenly, this mutation is called invariant point, 3: 55ents on the X-ray intensities from Ti3-2aL ce dynamics of the compounds AlCo and AlNi......
-high-strength Al-Zn-Mg-Cu alloy was given and the stage fracture behaviors of equilibrium phase, matrix precipitation and microzone of precipitate free zone (PFZ) were analyzed by TEM observation of the quenched and aged microstructures, the fracture behavior and morphology of Al-Zn-Mg-Cu alloy. The results show that under the synchro deformation circumstances, the equilibrium phase particles......
......
; the phosphorus capacity rises with the increase of oxygen pressure from 3.6×10?5 Pa to 7.2×10?4 Pa at 1 773 K. Key words: CaO-SiO2-Al2O3-MgO-FetO slag; phosphorus capacity; gas-slag-metal equilibrium method...?788. [11] 陈四红, 杨 建, 薛向欣, 陈 韧, 崔志英. CaO-SiO2-Al2O3- MgO- Na2O-CrOx炉渣中铬氧化物间的氧化还原平衡[J]. 中国有色金属学报, 2003, 13(1): 255?258. CHEN Si-hong, YANG Jian, XUE Xiang-xin, CHEN Ren, CUI Zhi-ying. Redox equilibrium......
equilibrium diagram of Zn-H2O system and Ge-H2O system was analyzed based on the thermodynamics. The results show that germanium can decrease cathodic polarization of zinc deposition... deposition, and stimulate hydrogen evolution reaction. Key words: germanium; zinc deposition; electrochemistry behavior; E-pH equilibrium diagram  ......
maximization and overload flow minimization at the upper-level model. At the lower-level model, elastic demand, mode choice and multi-class user equilibrium assignment were synthetically optimized. A genetic... restriction; equilibrium analysis; bi-level programming model......
of safety of slope based on nonlinear Hoek-Brown limit equilibrium method Li Wenyuan, Wu qihong (School of Urban and Rural Construction, Chengdu University, Chengdu 610106, China) Abstract: In order to establish the limit equilibrium method of the safety factor calculation for slope stability, based on the nonlinear Hoek-Brown criterion, the Hoek-Brown parameters corresponding to the equivalent cohesion......
phase is the pre-formed phase during solidification from liquid. Fig. 2 Microstructures and corresponding XRD patterns of alloys Zn17Ca13 (a, b), Zn32Ca15 (c, d), Zn26Ca10 (e, f) after equilibrium... electron microscopy. The results show that two ternary compounds T1 and T2 can be in equilibrium with the Mg-based solid solution in Mg-Zn-Ca system. T1 phase is a linear compound......
Simultaneously enhanced strength and ductility of 6xxx Al alloys via manipulating meso-scale and nano-scale structures guided with phase equilibriumQiang Lu1,Kai Li1,2,Haonan Chen1,Mingjun Yang1,Xinyue Lan1,Tong Yang1,Shuhong Liu1,Min Song1,2,Lingfei Cao3,Yong Du1,21. State Key Laboratory of Powder ......