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Intense research and refinement of the tools used in performance-based seismic engineering have been made,but the maturi......
The title complex L3Y(L = [O-4,6-di-tBu-C6H2-2-CH{CH(iPr2NCHCHN) }]) has been synthesized by the reaction of LiY[N(iPr) ......
The crystals of pentafluoropropionylbenzoylmethylene triphenylphosphorane thatbears two strongly electron-withdrawing g......
Artesunate, C19H28O8, is orthorhombic and crystallizes in the space group D24 -P212121 with a = 18.781(4), b = 10.528(5......
The title compound (C5N5H41P2Mo5O30.5) was synthesized under hydrothermal condition and its crystal structure was determ......
Magnesium alloy is the lightest structural metal material. As its ductility is usually limited because of its hexagonal ......
With the help of solidification kinetics, precipitation and growth of TiN have been studied theoretically and the effec......
Viewing from the overall situation, China’s copper supply in 2005 is rather tight. The national GDP growth in 2005 is a......
Solidification Structure of Low Carbon Steel Strips with Different Phosphorus Contents Produced by S
In the present paper, low carbon steel strips with different phosphorus contents were produced using a twin roll strip c......
Numerical simulation of shear band localization in geotechnical materials based on a nonlocal plasti
A new nonlocal plasticity model,which is based on the integral-type nonlocal model and the cubic representative volumetr......
[Tm4 (p-NO2C6H4CO2)12 (H2O)10]·2H2O, Mr = 2885. 28, triclinic, space group P1 with a=14. 109(4) ,b= 14. 594(3) ,c= 13.......
The effect of annealing condition on sputtered indium tin oxide(ITO) films on quartz with the thickness of 200 nm is cha......
The reaction of triphenylphosphine with AgNO3 yielded an unusual nitrate anion bridging one-dimensional infinite chain [......
The title compound (C29H50O2, Mr = 430.69) was isolated from the algae Halimeda xishaensis collected from the South Chin......
A new Cu(II) complex [Cu(4-cba)(1,10-phen)(H2O)2](NO3) (4-Hcba = 4-cyanobe- nzoic acid) has been synthesized by solvothe......
Effects of low-frequency magnetic field on grain boundary segregation in horizontal direct chill cas
Effects of low frequency electromagnetic field on grain boundary segregation in horizontal direct chill (HDC) casting pr......
Synthesis and Crystal Structure of [MoOS_3Cu_3I(dmpzm)_2]·2(MeCN)_(0.5) (dmpzm=Bis(3,5-dimethylpyraz
Reaction of a preformed cluster [Et4N]4[Mo2O2S6Cu6I6] with bis(3,5-dimethylpyra- zolyl)methane (dmpzm) in acetonitrile a......
The national energy leading group chaired by Premier Wen Jiabao recently declared that “marketization is the most impor......
For the purpose of decreasing the applied limitation resulting from the anisotropic mechanical property of Al-Li alloy 2......
An integrated mathematical model is developed to predict the microstructure evolution of C-Mn steel during multipass hot......
Yanchang Petroleum (Group) Co., Ltd. is a slate-owned enterprise under the Shaanxi provincial administration and also on......
Fabrication of quaternary Mg-Zn-Y-Ce quasi-crystal alloys and their strengthening effects on AZ91 ma
Quaternary Mg-Zn-Y-Ce quasi-crystal-containing alloys were fabricated using a metal mold casting route. The microstructu......
Rapid solidification of binary Cu-22%Sn peritectic alloys and Cu-5%Sn-5%Ni-5%Ag quaternary alloys was accomplished by gl......
Al-27%Cu-5.3%Si ternary eutectic alloy was melted using a YAG laser and then solidified while being acoustically levitat......
The effects of ultrasonic vibration(UV)treatment on microstructure of semi-solid aluminum alloys and the application of ......
The Be-based materials with many particular properties lead to an important research subject. The investigation progress......
Solution and aging treatments are important approaches to improve mechanical properties and microstructure of aluminum-b......
Aiming at overcoming the low plasticity of magnesium alloy at room temperature, we researched viscous warm pressure bulg......
Therapeutic management of hepatocellular carcinoma(HCC) is quite complex owing to the underlying cirrhosis and portal ve......
FGH4096 is an important damage-tolerance-type powder metallurgy (PM) superalloy, which is also the optimized turbine mat......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
α-甲基苯乙烯作为异丙苯法合成苯酚丙酮的副产品,可以用于合成二聚物用于橡胶产品助剂,具有较高的附加值。由于工厂初始设计精馏......
为解决干气不平衡问题，制氢装置在加氢反应器中使用西北化工研究院开发的JT-4型焦化催化干气加氢催化剂，以满足干气制氢的需要。使用......
为解决延安石油化工厂120万t/a连续重整装置精制油硫含量超标的问题,分别从预加氢催化剂活性、物料互串、换热器泄漏及蒸发塔分离......
A continuous-time formulation for refinery production scheduling problems involving operational tran
In the refinery scheduling, operational transitions in mode switching are of great significance to formulate dynamic nat......
采用扫描电镜及电子探针对镁合金中单颗粒夹杂物进行了成分分析.结果表明:在MgO夹杂物内部,各处的成分并不均一,且夹杂物伴随着气......
本文对新形势下大学生思想政治教育工作的精致化进行了研究,阐明了思想政治教育工作精致化的内涵和现阶段思想政治教育工作不精致......
研究Sr对过共晶Mg-4%Si（质量分数）合金中Mg2Si相的变质作用与机理。Mg-4%Si合金中存在多面体形初生Mg2Si相与汉字状共晶Mg2Si相。添......
文章从高校教务工作的角度探讨将专业技能教育与综合文化素质教育相融合的高职院校育人模式。研究的具体内容以“双融合”的课程育......
通过对我国粮、棉、油种植区域布局的变动分析,提出了东北、华北、华东、华南、华中、西北、西南和新疆8个区的种植业发展优化配置......
根据工程实践经验,并结合国家规范要求,针对当前住宅小区给排水的精细化设计问题进行了分析和总结,阐述了管材选择、系统设计、管......
综述转炉炼钢厂2008～2009年开展的工艺创新、产品质量改进与产品结构优化、节能与环境治理等工作及其成效。......
采用光学显微镜、扫描电镜、能谱仪等研究了稀土铈对4．0％C～20．0％Cr过共晶高铬铸铁铸态组织的影响。结果表明：加入适量的稀土铈后初生碳化......
因转炉成分控制能力有限,为实现钢水成分的预知预控,通过对钢水、铸坯取样分析,研究了转炉操作和吹氩工艺对钢水成分均匀性的影响,......
移动互联网的发展造就了流量时代。通过分析运营商的经营现状，提出通过构建智能管道，打造聚合平台，改变经营策略等方面来适应移动互联......
在离心力场下，使初生金属间化合物沿离心半径呈梯度变化，制备出Ａｌ－Ｆｅ梯度材料，并在合金中加入适量的Ｓｉ、ＲＥ，Ｍｎ合金元素，改善了初生金属间化合物的形......
