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- 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.
- 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。
- 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;
- 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。
- Isotope Effects In Chemistry and Biology 化学与生物学中的同位素效应
- 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
- kinetic solvent isotope effect (KSIE) [化] 动态溶剂同位素效应
- The isotope effects of HOCH_2SO_3Na(HMSNa) derivatization and cysteamine were preliminary studied by compound-specific isotope analysis(CSIA). The feasibility for the determination of isotopic composition of atmospheric formaldehyde was discussed. 利用单体化合物稳定同位素(CSIA)技术研究了甲醛合次硫酸氢钠(HMSNa)与半胱胺衍生化过程的同位素效应,探讨了半胱胺衍生化法测定大气甲醛碳同位素的可行性。
- The portrait shows fine effects of light and shade. 这幅肖像画的浓淡色调表现得很好。
- The industry felt the effects of the energy crisis. 该工业受到能源危机的影响。
- All effects are dependent on their causes. 一切的结果都基于它们的原因。
- Keywords titanium;tritium;activation energy value;isotope effect; 钛;氚;表观活化能;同位素效应;
- A radioactive isotope of carbon, especially carbon 14. 放射性碳碳的一种放射性同位素，尤指碳14。
- Medicines sometimes have unpleasant side effects. 药物有时具有令人不快的副作用。
- Poetry achieves its finest effects by suggestion. 诗歌借助暗示联想达到最佳意境。
- The science fiction film had some marvellous special effects. 这部科幻电影有些特殊效果美妙绝伦。
