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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. 分別從硝基芳環(huán)的結構、親核試劑的類(lèi)型和反應條件三方面討論了影響VNS定位效應的因素;
- Isotope effect of ion sputtering 離子濺射的同位素效應
- vapour pressure isotope effect (VPIE) 蒸汽壓同位素效應
- vapor pressure isotope effect (VPIE) [化] 蒸氣壓同位素效應
- Measurement of kinetic isotope effects indicated that the rate-limiting step of these reactions is the C(sp 2 )-H bond cleavage. 動(dòng)力學(xué)同位素效應測量表明限速步驟;這些反應是在C(藻2)-八鍵裂解.
- The authors propose an E 2 elimination mechanism in which the cinchona alkaloid acts as a chiral base in consistency with measured isotope effects. 作者提出了電子二是淘汰機制金雞生物堿手基地作為衡量符合同位素效應.
- kinetic solvent isotope effect (KSIE) [化] 動(dòng)態(tài)溶劑同位素效應
- 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. 本論文也利用基質(zhì)同位素效應與溶劑同位素效應，藉以分析葡萄寡糖氧化酶反應時(shí)，葡萄糖CH1與OH1鍵結斷裂的可能順序。
- 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. 應用基于密度泛函理論(DFT)和密度泛函微擾理論(DFPT)的 PWSCF和PHONONS第一原理計算程序系統研究了TiX2(X=H,D,T)系統熱力學(xué)特性的同位素效應。
- 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突變株酵素活性下降約50倍，且從其動(dòng)力學(xué)同位素效應結果顯示，Y429的突變使CH1鍵結斷裂的速率更受到限制，乃符合Y429作為活性中心堿基之推測。
- Keywords titanium;tritium;activation energy value;isotope effect; 鈦;氚;表觀(guān)活化能;同位素效應;
- Punishment had very little effect on him. 懲罰對他沒(méi)有什么效果。
- It's certain that every effect must have a cause. 無(wú)疑，每個(gè)結果必定有其原因。
- That measure will be carried into effect very soon. 這項措施將在最近付諸實(shí)施。
- My plan has not been carried out with effect. 我的計劃未被有效地執行。
- The room shows off her paintings to good effect. 這個(gè)房間把她繪畫(huà)的優(yōu)點(diǎn)充分顯示出來(lái)。
- Her words had a soothing effect. 她的話(huà)起了安慰的作用。
- Isotope Effects In Chemistry and Biology 化學(xué)與生物學(xué)中的同位素效應
- It's the music to heighten the dramatic effect. 那是用于提高戲劇效果的配樂(lè )。
- I felt comfortable on narcotic effect. 在麻醉劑的作用下我感到舒服些。
