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of damage and suitable to alarm the possible future damage of the expansion joints.Key words:damage alarming; expansion joint; temperature; traffic condition; control chart; suspension bridge......
by suspension magnetization roasting-magnetic separation YU Jianwen, HAN Yuexin, LI Yanjun, GAO Peng (School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China... ores; preconcentrate; suspension magnetization roasting; magnetic separation 我国鞍山式赤铁矿资源储量巨大,现已探明储量50多亿t,主要集中在辽宁,山西,河北,湖南等地.其中典型代表性的鞍山式赤铁矿资源有东鞍山铁矿,齐大山铁矿及司家营铁矿.自1958年以来,我国选矿科技工作者就对东鞍山铁矿石进行了长期的科技攻关试验.最初,东鞍......
; 文献标志码:A Numerical simulation of flotation bubble motion in suspension fluid PENG Xiao-qi1, 2, CHEN Si-chao1, SONG Yan-po1, LIU Tao1 (1. School of Energy Science... with practical mineral flotation. Key words: mineral flotation; bubble motion; numerical simulation; suspension fluid 泡沫浮选工艺被广泛应用于选矿生产.在浮选槽中,搅拌装置对矿浆进行激烈搅拌产生强烈的涡流,涡流的剪切作用使吸入浮选机的空气被分散成大量尺寸不等的气泡,这些气泡的初速度大......
of suspension bridges under random traffic flow based on the first-passage criterion XIAO Xinhui1, 2, 3, LU Naiwei1, LIU Yang1, GUO Xin3 (1. School of Civil Engineering and Architecture... and safety level of stiffening girders for long-span suspension bridges considering the actual vehicle states, the vehicle involving vibration and the dynamic reliability indices were studied based......
Trans. Nonferrous Met. Soc. China 24(2014) 2393-2400 Near net shape casting process for producing high strength 6xxx aluminum alloy automobile suspension parts Shi-jie GUO, Yi XU, Yi Han, Jin-yan LIU, Guan-xia XUE, Hiromi NAGAUMI Suzhou Research Institute for Nonferrous Metals, Suzhou 215026, China Received 17 October 2013; accepted 5 May 2014 Abstract: The automobile suspension parts of a high......
多孔高分子微球的制备研究 周锦鑫1,刘思思1,周虹峰1,顾顺超1 (1.上海交通大学化学化工学院化工系,上海,200240) 摘要:以苯乙烯,二乙烯苯为单体,引入混合溶剂作为致孔剂,采用悬浮聚合的方法制备了多孔交联聚苯乙烯微球,并通过有机萃取等方法带出致孔剂,形成永久性大孔.分析了搅拌速度,分散剂用量,致孔剂等因素对微球粒径分布和孔比表面积的影响,研究了不同工艺条件下的微球形态.结果表明,转速在180r/min左右,分散剂质量分数在0.15%左右时,可以制得粒径范围为0.2~0.8mm的聚苯乙烯微球,且微球具有良好的粒径分布.采用石蜡/甲苯,石蜡/乙酸乙酯为致孔剂时,可以形成纳米级小孔,且当石蜡/甲苯用量为86%时,孔比表面积可达到33.07m2/g,并随着交联剂用量的增加而增大. 关键词:悬浮聚合; 多孔微球; 粒径分布; 孔比表面积; suspension......
of anisotropic fluid, influence of un-symmetric stress tensor on material functions, vibrational shear flow of the fluid with small amplitudes and rheology of anisotropic suspension were reported. A new... of fluid, such as stability of hydrodynamic flow and orientational motion, were discussed. The results show that the polymer suspension systems exhibit anisotropic character. The PNC systems can exhibit......
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characteristics of suspension insulator in Hunan Province JIANG Zidan1, JIANG Xingliang1, JIANG Yanru2, LI Yongfu3 (1. State Key Laboratory of Power Transmission Equipment & System Security and New... Co. Electric Power Research Institute, Chongqing 401123, China) Abstract: In order to study the natural contamination characteristics of 500 kV line suspension insulator, the test insulator string......