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  1. Highly enantioselective 1,4-conjugate addition of dialkylzinc to

  2. 文献文献文献文献Highly enantioselective 1,4-conjugate addition of dialkylzinc to ,-unsaturated lactone catalyzed by diphosphite–copper complexes
  3. 所属分类:其它

    • 发布日期:2011-09-24
    • 文件大小:135168
    • 提供者:boge1
  1. Soil Mechanics for Unsaturated Soils

  2. Soil Mechanics for Unsaturated Soils, nice!
  3. 所属分类:教育

    • 发布日期:2013-05-08
    • 文件大小:30408704
    • 提供者:u010611404
  1. Highly Regioselective Hydrophosphination of α,β-Unsaturated Carbonyl Derivatives Catalyzed by the Simple Lanthanide Amid

  2. 稀土胺基配合物催化不饱和羰基衍生物的区域选择性氢膦酸酯化反应,吴章栓,周双六,稀土胺基配合物[(Me3Si)2N]3Ln(μ-Cl)Li(THF)3能够高效地催化亚磷酸二乙酯对α,β-不饱和羰基衍生物的区域选择性加成反应。研究结果表明α,β-�
  3. 所属分类:其它

    • 发布日期:2020-02-21
    • 文件大小:270336
    • 提供者:weixin_38663837
  1. Synthesis of unsaturated cycloexanone formaldehyde resins and their UV-curing behavior with thiols

  2. 不饱和环己酮甲醛树脂的合成及其与硫醇UV固化行为研究,胥鹏,李超峰,以重水合的镁铝水滑石为催化剂合成了水溶性的环己酮甲醛树脂(CFR),并用5-降冰片烯-2,3-二羧酸酐封端引入双键。通过FT-IR监测双键的
  3. 所属分类:其它

    • 发布日期:2020-02-16
    • 文件大小:428032
    • 提供者:weixin_38713009
  1. Unsaturated macrophotoinitiators with double bonds in side-chain: synthesis and photopolymerization behaviors

  2. 侧链含双键的不饱和丙烯酸类大分子光引发剂的合成以及性能研究,刘永瑞,马正锋,本文合成了一系列的侧链含有不同比例的不饱和双键的大分子光引发剂。首先,用Irgacure 2959(2-羟基-2-甲基-对羟乙基醚基苯基丙酮)和�
  3. 所属分类:其它

    • 发布日期:2020-02-12
    • 文件大小:1048576
    • 提供者:weixin_38689824
  1. 改进的饱和带非饱和带运移模型(SUTRA)

  2. 改进的饱和带非饱和带运移模型(SUTRA),薛显武,,本文对饱和带非饱和带运移模型(Saturated-Unsaturated Transport,简称 SUTRA)进行简要地介绍,针对该模型对源汇项只能固定值,不能随时间变化�
  3. 所属分类:其它

    • 发布日期:2020-01-20
    • 文件大小:486400
    • 提供者:weixin_38574410
  1. 先进PID控制(英文版)

  2. 先进PID控制,通俗易懂延展推广,使人对PID控制的算法理解更上一层NTECH OPEN ACCESS PUBLISHER NTECH open free online editions of intech Books and Journals can be found at www.intechopen.com Contents Preface IX Part 1 Advanced PID Control Techniques Chapter 1 Predictive PID Contro
  3. 所属分类:专业指导

    • 发布日期:2019-02-23
    • 文件大小:12582912
    • 提供者:dknight321
  1. Numerical Simulation on the Three-dimensional Seepage Field of Zhelamuqing Tailings Dam

  2. Based on the engineering geological, hydrogeological conditions and survey results of Zhelamuqing tailings dam, two types seepage problems in the tailings dam which are saturated seepage and saturated - unsaturated seepage were described and solved b
  3. 所属分类:其它

    • 发布日期:2021-02-09
    • 文件大小:1048576
    • 提供者:weixin_38623080
  1. Analysis on the Fluid-solid Coupling Interaction in Tailings Pond based on the Unsaturated Soil Seepage theory

  2. 基于非饱和土渗流理论,针对一上游法尾矿库工程地质、水文地质条件以及库内尾矿的物理力学性能试验成果,建立了尾矿库三维有限元模型,研究了尾矿的土水交互特征曲线,分析了尾矿库的渗流场、应力场以及流固耦合效应,总结得到了上游法尾矿库流固耦合计算规律。研究结果表明:(1)与不考虑流固耦合作用相比,考虑流固耦合作用时尾矿库堆积坝内浸润线平均埋深更符合实际、更趋合理。(2)与不考虑流固耦合作用相比,考虑流固耦合作用时尾矿库内正孔隙水压力更大,而考虑流固耦合作用时尾矿库内负孔隙水压力则更小。(3)与不考虑流固耦
  3. 所属分类:其它

    • 发布日期:2021-02-09
    • 文件大小:430080
    • 提供者:weixin_38686245
  1. Dynamic Stability of the Tailings Dam under High Intensity Seismic Load Coupled with the Effect of Seepage

  2. Based on one selected tailings dam, two types seepage in the tailings dam which are saturated seepage and saturated - unsaturated seepage were described and solved by Darcy';s law and Richards equation. Then the nonlinear dynamic finite element equat
  3. 所属分类:其它

    • 发布日期:2021-02-08
    • 文件大小:3145728
    • 提供者:weixin_38534352