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of molded part, thus ensuring elimination of part warpage in conventional demolding mechanism. Working parameters of permeable steel were determined by experimental study of its permeability in which air... increases. Permeability coefficient and inertia coefficient under both flow conditions were analyzed and calculated. The flow equations are obtained, and the air flow behavior in permeable steel......
; 文献标识码:A Mechanism of improving permeability in dump by effect of electric field ZUO Heng, WANG Yi-ming, CHEN Xue-song, JIANG Huai-chun (School of Resources and Safety Engineering, Central South University, Changsha 410083, China) Abstract: Based on electro-dynamic effect in porous media, the novel method for enhancement of permeability of dump in leaching process by effect......
; 文献标志码:A 文章编号:1672-7207(2014)12-4277-15 Genetic mechanisms and classified evaluation of low permeability... observation, thin section identification, image analysis, mercury penetration, petro-physical property testing and other technical methods, the low permeability reservoirs in the near-shore subaqueous......
, 4)alloys decreased after the addition of niobium element and was in the range of 1.5-2.9 A/m. The permeability spectrum of (Fe0.87Co0.13)7.3Gd3.5Nb1.5B25glassy ribbon showed that the relaxation fiequency (f0) was 6.1 MHz. Key words:iron-based glassy alloys; glass-formation ability; soft magnetic properties; permeability spectrum; rare earths; [全文内容正在添加中] ......
被保持,渗透效果提高.关键词:尾矿渗透性；电场；变水头；电渗作用；双电层；渗透系数Experimental study on effect of electric field on permeability of fine tailingsHU Kai-jian1,2, WU Ai-xiang1,2, YIN Sheng-hua1,2, HUANG Ming-qing1,2, WANG... the permeability of tailings seepage system in the electric field, the effect of electric field on improving permeability was examined and the relationship between voltage and permeability coefficient......
; 文献标志码:A 文章编号:1672-7207(2011)11-3536-09 Evaluation analysis and test for permeability of SMA pavements DAN Han-cheng1, LUO Su-ping1, 2, LI Liang1...: In order to investigate the permeability of SMA (Stone mastic asphaltum) pavement, an improved and a self-made method for testing the permeability coefficient of SMA pavement was adopted in Hunan......
of fractal theory and random Brown function. Furthermore, the permeability coefficient of the single fracture was obtained. In order to test the stability of the method, 500 simulations were conducted on each different fractal dimension. The simulated permeability coefficient was analyzed in probability density distribution and probability cumulative distribution statistics. Statistics showed......
of Geology, Northwest University, Xi’an 710069, China) Abstract: The average porosity of sandstone reservoir in Jiyuan area of Ordos basins is 11.68%, average permeability is 0.58×10-3μm2, belonging to the ultra-low permeability and low porosity reservoir. Ultra-low permeability sandstone reservoir has complex micro-structure, and research on porosity evolution is a hot-spot currently. Using casting thin......
situation of permeability performance of composite cryogenic tanks for aerospace[J]. The Chinese Journal of Nonferrous Metals, 2021, 31(6): 1423-1435. DOI: 10.11817/j.ysxb.1004.0609.2021-37822 为进一步提高航天...增加,试样的内部裂纹密度增大,且拉伸模量逐渐降低.同时,循环载荷和低温环境均会引起裂纹扩展,进而导致试样渗漏率的增加. 图2 渗漏率测量系统示意图[8] Fig. 2 Schematic diagram of permeability measurement system[8] 2006年,日本宇宙航空研究所的YOKOZEKI等[9]针对复合材料层合板损伤状态难以观测以及......
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