共搜索到10667条信息，每页显示10条信息，共1067页。用时：0小时0分0秒671毫秒
J. Cent. South Univ. Technol. (2011) 18: 1063-1067 DOI: 10.1007/s11771-011-0804-5 Hydrogen permeability of slags containing calcium fluoride DONG Yan-wu(董艳伍)1, 2, JIANG Zhou-hua(姜周华)1, LIANG Lian... South University Press and Springer-Verlag Berlin Heidelberg 2011 Abstract: To investigate the hydrogen permeability of calcium fluoride used for electroslag remelting (ESR) process, "Gas-slag- metal......
between the stress–axial strain curve, permeability–axial strain curve and acoustic emission activity pattern. Several stages can be divided to elaborate these tendencies: 1) In the initial compaction... in confining pressure and pore pressure and exhibited ‘√’-shaped changes. However, the relative values of permeability in all deformation stages vary. This is reflected by the fact that under the same initial......
Micromagnetic simulation and experimental study on microwave permeability of nano-magnetic films DENG Lian-wen(邓联文), HUANG Xiao-zhong(黄小忠), ZHOU Ke-sheng(周克省), YANG Bing-chu(杨兵初) School... with the micromagnetic ripple theory. The microwave permeability of nano-magnetic films deduces and well fits the Landau-Lifshitz-Gilbert (LLG) equation. The films present large microwave permeability......
J. Cent. South Univ. (2017) 24: 2134-2144 DOI: https://doi.org/10.1007/s11771-017-3622-6 Determination of microscopic waterflooding characteristics and influence factors in ultra-low permeability.... Department of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, China; 3. National Engineering Laboratory of Low Permeability Oilfield Exploration and Development, Xi’an 710018, China......
is the porosity when the initial pore water pressure is p0; K0 is the permeability coefficient when the initial pore water pressure is p0; εv is the volumetric strain; p is pore water pressure. As shown...J. Cent. South Univ. (2012) 19: 252-261 DOI: 10.1007/s11771-012-0999-0 Creep properties and permeability evolution in triaxial rheological tests of hard rock in dam foundation XU Wei-ya(徐卫亚)1, WANG......
] estimated permeability of 5 types of sandstones using this exponential relationship. The minimum value of fitting initial permeability K0 is 14.8×10–15 m2. EVANS et al [7] proposed the stress... increasing pressure ΔP is applied to upstream side then. Knowing that the pulse pressure is negligible compared with initial stage, permeability is obtained by choosing the coefficient c [18]: ......
, annealing temperature and magnetic permeability. The results show that, on the one hand,the annealing temperature exerts a significant effect on phase structure and initial permeability(μi...Room-temperature and high-temperature magnetic permeability of Co-doped nanocrystalline alloysBin Fu1,Jie Han2,Sheng-Qi Guo1,Zhi Wang3,Pan Zhang4,Zi-Jiao Pan4,Qiang Xu41. Tianjin Key Laboratory......
J. Cent. South Univ. (2020) 27: 2068-2081 DOI: https://doi.org/10.1007/s11771-020-4431-x Microstructural insight into permeability and water retention property of compacted binary silty clay GAO... densities were prepared. Scanning electron microscopy and mercury intrusion porosimetry were used to characterise the microstructure of silty clay. Thereafter, falling-head permeability tests and water......
calculated by adjusting the initial permeability at low frequencies determined by the saturation magnetization and the magnetic anisotropy field of thin films. In this study, a new method of the modifying... height between upper line and ground plate, and K is a modifying factor established by a known sample or by adjusting the initial permeability at low frequencies. From the initial permeability at low......
AC magnetic properties of the alloy. The Hopkinson peak appears only in the amorphous alloy when Ta ≤ 703K. As Ta increases above 733K, the real part of the complex initial permeability μi'' descends gradually, μi'' decreases more slowly with temperature in the high temperature range. The high-temperature (about 750K) AC initial permeability for the alloy annealed at Ta=763K has been found......
