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to the unified soil classification system (USCS), the clayey soil sample belongs to the CL scope (low plastic clayey soil). Based on the method used in Ref. [28], the initial pH value of the clayey soil sample... the effective stress development and then decreased the water content reduction. Due to the low external voltage of E_Ca, the negative pore water pressure of E_Ca was lower than that in the other two experiments......
at a low rate when it has high water content. Besides, adsorbed water can be a stable parameter and is difficult to discharge during the operation period of subgrade. The settlement of fine-grained soil... [4, 5], which has the characteristics of high viscosity, low fluidity and large deformation stiffness [6, 7]. Since strongly adsorbed water has been classified as a part of solid phase, the weakly......
Co., Ltd., Hefei 230088, China; 5. Engineering Research Center of High Performance Copper Alloy Materials and Processing, Ministry of Education, Hefei 230009, China Received 18 June 2020; accepted 24... conductivities (TCs) and low thermal expansion have been developed as novel electronic packaging materials. Examples of these materials include Al and Al alloy composites reinforced by the natural......
, arsenic is considered to be one of the most toxic and harmful pollution elements to human health. Long-term intake of low-concentration arsenic contaminated water may lead to kidney, liver and skin...]. However, the need to adjust the solution pH, the relatively low adsorption capacity, and the potential dissolution of adsorbents during the adsorption process limits the removal efficiency of arsenic......
绪泉, 侯浩波, 周 旻, 等. 钢渣-矿渣-氟石膏基胶结材固结铜尾矿性能[J]. 土木建筑与环境工程, 2014, 36(1): 138-142. HUANG Xu-quan, HOU Hao-bo, ZHOU Min, et al. Properties of cemented copper tailings backfill with steel slag-blast furnace...材料学报, 2020, 23(5): 993-1000, 1015. YANG Kai, YANG Yong, LI Xin-yuan, et al. Hydration behaviour and early microstructure of alkali-activated slag binder at low temperature[J]. Journal of Building......
outstanding HER activity in alkaline electrolyte, which only needs a low overpotential of 79 mV at the current density of 10 mA/cm2. When serving as anode and cathode electrode simultaneously, the Se-NiCoP/CC electrodes achieve current density of 50 mA/cm2 at a low voltage of only 1.62 V. This work provides a feasible way to rationally design high active HER electrocatalysts. Key words: Se-NiCoP......
application. Vacuum preloading technology is usually used to reinforce the soft soil foundation due to its low cost, simple and green operation, and reduced pollution [2-9]. Vacuum preloading has... corrosion of the anode electrode, the uneven soil reinforcement effect, the unsatisfactory treatment effect of soil near the cathode, large energy consumption, and low electroosmosis efficiency......
, Wang G X, et al. Microstructural development in a rapidly cooled eutectic Sn-3.5%Ag solder reinforced with copper powder[J]. Powder Technology, 2006, 166(1): 38-46. [27] 刘平. 颗粒增强Sn3.8Ag0.7Cu复合无铅焊料的研究... nanoparticles effect on the wettability of Sn-Ag-Cu solder pastes and solder joints microstructure and copper[J]. Soldering & Surface Mount Technology, 2011, 23(3): 150-160. [56] Tsao L C, Chang S Y......
, there still exist three main problems, namely challenging preparation method, low strength, and inferior corrosion resistance, limiting the rapid development of Mg-Li alloys [10-12]. It is well known... microstructure. It was composed of fine equiaxed grains, a relatively low fraction of twins, and uniformly distributed eutectic texture along grain boundary. Also, they proposed the corrosion mechanism......
pressure zone in the western basin and the traps near faults in the low scope or transitional pressure zone in the eastern basin. Key words: overpressure evolution; hydrocarbon migration; basin modeling... vs. geological age evolving curves of overpressured centers at bottom of Yacheng Formation in each primary depression 图9 西部L1测线和东部L8测线的沉积速率曲线(数据点P1~P6位置在图5相应剖面上已标出) Fig. 9 Sedimentation......
