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and liquid viscosity have little influence on the swirling field strength, but the sand-carrying rate of fluid can increase by increasing liquid viscosity in a certain range; 3) Rotating the string...; influence factors......
, Harbin 150001, China)Abstract:A line contact model of elastic coated solids is presented based on the influence coefficients (ICs) of surface displacement and stresses of coating-substrate system... pressure; stress field; frequency response function; influence coefficient......
水泥项目矿山开采环境影响评价中的几点建议 杨越1 (1.中材地质工程勘查研究院,北京,100102) 摘要:我同是世界第一水泥生产大国,2008年达到13.88亿t,相应水泥石灰石及砂岩矿山的开采量达17亿余t.随着水泥工业企业向大型化发展,其矿山的开采规模不断扩大,开采中产生的环境影响也在不断发生变化.本文针对水泥矿山环境影响评价中的生态影响评价等级,评价范围,现状调查及景观评价等提出一些观点和建议. 关键词:水泥工业; 矿山开采; 环境影响评价; cement industry; mining; environment influence assessment; [全文内容正在添加中] ......
results are compared with the analytical ones, and then the influence of thermal stress, the section rigidity of pipeline, the soil properties and the trigging force to the high order lateral buckling... is an effective measure to improve the ability to resist the global buckling.Key words:pipeline; high order lateral buckling; analytical solution; finite element analysis; influence factors......
Influence of dispersant on Y_2O_3: Eu~(3+) powders synthesized by combustion method ZHAO Jiangbo1,YIN Min1,LI Yong1,ZHANG Weiping1,WANG Chaonan1 (1.Hefei National Laboratory for Physical Sciences...,Institute of High Energy Physi) Abstract:Y_2O_3: Eu~(3+) powders were synthesized by combustion method and the influence of dispersant was investigated. XRD analysis in-dicated that the particle size......
的速度不断下移;沉降区内上部能观察到尾砂颗粒不断下降,下部则有浆体翻涌上升;压缩区尾砂不断沉积,尾砂沉积高度上升;上清液中的细尾砂颗粒少. 表2 影响因素筛选实验方案 Table 2 Scheme of screening influence factors test 图3 液分离界面高度随时间变化曲线 Fig. 3 Changes...矿浓密的影响机理[J]. 北京科技大学学报, 2013, 35(11): 1419-1423. WANG Yong, WU Ai-xiang, WANG Hong-jiang, LIU Si-zhong, ZHOU Bo. Influence mechanism of flocculant dosage on tailings thickening[J]. Journal......
载;影响因素 中图分类号:TU352 文献标志码:A 文章编号:1672-7207(2012)07-2733-07 Analysis of influence factors and mechanical... elastic foundation beam theory. And then the power series method was applied to solve the equations. Afterwards, some factors which may influence the inner force and deformation of the pile were analyzed......
; 文献标志码:A 文章编号:1672-7207(2017)05-1283-10 Solution and application of vertical drain consolidation theory considering a square influence... solution considering a square influence zone and boundary permeability was obtained. The results are different among consolidation theory with different shapes (including a square zone, a regular......
model; influence factors 膏体充填能有效解决地表塌陷和尾矿堆积问题[1],而且水泥耗量低,尾砂利用率高,充填整体性能和充填接顶性能优越[2].在矿山实际应用过程中,膏体充填料浆流变参数的确定是管流水力坡度计算,管道输送设计的关键,直接影响管输参数的选择.然而,由于膏体的流变特性由复杂的物理化学性质决定,造成不同配比参数下膏体的流变特性差别较大,而且影响膏体流变特性的因素较多[3......
the attenuation of TiN inclusion is the minimum. Key words: inclusion; ultrasonic parameters; numerical simulation; multi-domain; influence effect 钢中非金属夹杂物的存在破坏了材料的连续性,严重影响钢的加工性能,降低了钢的承载能力和疲劳寿命.对钢中夹杂物特征包括......