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- By the analysis of the competition experiment, the rate-limiting step and the kinetic isotope effect, the possi-ble reaction mechanism of VNS is described. 分别从硝基芳环的结构、亲核试剂的类型和反应条件三方面讨论了影响VNS定位效应的因素;
- Isotope effect of ion sputtering 离子溅射的同位素效应
- vapour pressure isotope effect (VPIE) 蒸汽压同位素效应
- vapor pressure isotope effect (VPIE) [化] 蒸气压同位素效应
- Measurement of kinetic isotope effects indicated that the rate-limiting step of these reactions is the C(sp 2 )-H bond cleavage. 动力学同位素效应测量表明限速步骤;这些反应是在C(藻2)-八键裂解.
- The authors propose an E 2 elimination mechanism in which the cinchona alkaloid acts as a chiral base in consistency with measured isotope effects. 作者提出了电子二是淘汰机制金鸡生物碱手基地作为衡量符合同位素效应.
- kinetic solvent isotope effect (KSIE) [化] 动态溶剂同位素效应
- We have used the primary deuterium and solvent kinetic isotope effects to determine the relative cleavage timing of the glucose OH1 and CH1 bonds in GOOX. 本论文也利用基质同位素效应与溶剂同位素效应，藉以分析葡萄寡糖氧化酶反应时，葡萄糖CH1与OH1键结断裂的可能顺序。
- Based on density-functional theory (DFT) and density-functional perturbation theory (DFPT) we have discussed systematically the hydrogen isotope effects on the thermodynamic properties of TiX2 (X=H, D, and T) system. 应用基于密度泛函理论(DFT)和密度泛函微扰理论(DFPT)的 PWSCF和PHONONS第一原理计算程序系统研究了TiX2(X=H,D,T)系统热力学特性的同位素效应。
- The decreased activity by 50 fold and the kinetic isotope effects show that CH1 bond cleavage is more rate-limited in the Y429F mutant, consistent with the proposed proton shuttling by Tyr429. 其中Y429F突变株酵素活性下降约50倍，且从其动力学同位素效应结果显示，Y429的突变使CH1键结断裂的速率更受到限制，乃符合Y429作为活性中心碱基之推测。
- Keywords titanium;tritium;activation energy value;isotope effect; 钛;氚;表观活化能;同位素效应;
- Punishment had very little effect on him. 惩罚对他没有什么效果。
- It's certain that every effect must have a cause. 无疑，每个结果必定有其原因。
- That measure will be carried into effect very soon. 这项措施将在最近付诸实施。
- My plan has not been carried out with effect. 我的计划未被有效地执行。
- The room shows off her paintings to good effect. 这个房间把她绘画的优点充分显示出来。
- Her words had a soothing effect. 她的话起了安慰的作用。
- Isotope Effects In Chemistry and Biology 化学与生物学中的同位素效应
- It's the music to heighten the dramatic effect. 那是用于提高戏剧效果的配乐。
- I felt comfortable on narcotic effect. 在麻醉剂的作用下我感到舒服些。
