energy of activation

1. The energy of activation is the minimum energy level that two colliding molecules must possess in order to undergo a given chemical reaction.
   激活能就是使两个碰撞分子得以进行某特定的化学反应所必须具有的最低能级。
2. The hydrolytic polymerization of Cr 3+ was studied by microcalorimetry. The Thermal curve was determined According to thermokinetic theory, the Gibbs free energy and equilibrium constant of activation were calculated.
   对较高浓度下3价铬离子水解聚合作用的热谱曲线进行热动力学分析，用特征热谱参量，求出了这一连串反应的速率常数和活化平衡常数及活化自由能。
3. Mineralizing process is controlled strictly by interior factor, activation energy. This paper derivates the quantitative equations of activation energy in the mineralization of gold deposits using ACT theory.
   金矿成矿严格受其内部控制因素&金成矿活化能的控制，运用过渡状态（ACT）理论，推导出金成矿活化能模型的定量化方程式。
4. Theoretic analysis of dynamics shows that the activation energy is the function of aging temperature. There exists linear dependence of activation energy on aging temperature, and their relationship is equivalent to that of the factor before index on aging temperature s.
   动力学理论分析表明，反应活化能是老化温度的函数，活化能对老化温度存在线性依赖关系，且活化能对老化温度的依赖关系和指前因子对老化温度的依赖关系是等效的。
5. The apparent activation energy and reaction order of curing process in the PET tire cord activation spin finish were determined by differential scanning calorimetry ( DSC) and were calculated by formulas.
   采用差热扫描量热法（DSC）对两种涤纶粘合活化油剂试样的表观反应活化能和反应级数进行了测定，并利用公式计算出油剂的固化反应表观活化能和反应级数。
6. Evaluation of the Energy of Activation of Chemisorption for H_2 and O_2 on Transition d-Metals
   氧和氢在过渡金属上的化学吸附活化能估计
7. The energy of activation of forward and reverse reactions were 21. 07 and 24. 61 kJ/ mole respectively.
   正逆反应的活化能分别为21.07kJ·mol（－1）和24.61kJ·mol（－1）。
8. There is a positive correlation between organic sulfur content and the least value ( E min) of activation energy distribution or the value ( E SE min) of activation energy distribution after soluable organic matter are extracted from these rocks.
   有机硫含量与源岩活化能分布最小值（Emin）和经可溶有机质抽提后的活化能分布最小值（ESEmin）之间存在正相关关系；
9. The experimental analysis of activation energy of electroless deposition reaction shows that acidic bath reaction system possesses a low activation energy and a high deposition rate.
   对化学镀沉积反应活化能的实验测试表明，由于酸性镀液中采用pK值较低的乳酸作为络合剂，反应体系的活化能较低，镀速较高。
10. Based on the local energy minimum via coherent rotation of the magnetic and classical thermal activation, magnetization processes of magnetic multilayered films with both the bilinear and biquadratic exchange couplings are investigated.
    基于相干转动的局域能量极小模型和经典的热激活模型研究了包含二次、双二次耦合的磁性多层膜的磁化过程。
11. The apparent energy of activation of curing falls from 26 kcal/ mole in the absence of the catalyst to 20 kcal/ mole in its presence, being little affected by the amount of catalyst used.
    聚合反应表观活化能约由无催化剂存在时的26千卡/克分子降为20千卡克分子，改变催化剂的含量对表观活化能影响很小。
12. The activation energy, of ordering does not equal to the activation energy of diffusion.
    有序化激活能并不就等于扩散激活能。
13. Then at 6-311+ G basis set level MP2 ( FULL) method is used to scan the potential energy surface of different N-N contact distance in order to obtain the energies, activation energies, coupling matrix elements and Franck-Condon factors of this system.
    然后用MP2（FULL）/6311+G方法扫描势能面找出不同NN接触距离的活化态体系的能量、活化能、耦合矩阵元，利用黄金规则计算出不同的NN接触距离的电子转移速率。
14. In this paper, by testing gel time and further gaining the apparent activation energy and the relation between it and amine value, the rules of reacting activation of curing agent were discussed.
    通过对合成的环氧-二乙烯三胺的凝胶时间测试，和由此而得来的表观活化能以及它与胺加成物的胺值之间的关系来考察固化剂的反应活性规律。
15. The heat decomposition of the resin was studied using TG, and its thermo parameters such as activation energy Ea, pre-exponential factor A, entropy of activation S~, free energy of activation G, enthalpy of activation H were determined.
    利用热重法对该树脂的热分解动力学过程进行研究，并计算了热分解动力学参数：活化能Ea，指前因子A，反应熵S，反应自由能G，反应焓H。
16. The results are as follows: ① Values of average activation energy and characteristics of activation energy distribution can be affected by soluable organic matter existing in source rocks.
    结果表明：①可溶有机质的存在可影响源岩动力学参数活化能的大小和分布特征；
17. In this paper, the author used computer to picture out the gas energy distribution curves and explained a doubt of relationship between activation energy and temperature in inorganic chemistry teaching.
    作者使用计算机绘制了气体分子能量分布曲线图，较全面的阐明了活化能与温度的关系。是对无机化学中活化能与温度关系图的改进与补充。
18. The results indicate that the process of gas generation from different groups in crude oil can be described by parallel first-order reactions, but the average activation energy and distribution characteristics of activation energy for different groups may be different obviously.
    结果表明，原油中不同族组分成气的过程均可用平行一级反应描述，但不同组分在平均活化能及活化能分布上有明显的差异。
19. The energy of activation of the material decreases with the increase in the content of SiC and ( W, Ti) C.
    随弥散相SiC和（W，Ti）C的增加，其氧化活化能有不同程度的降低。
20. The adsorption followed pseudo-second-order kinetics with a small energy of activation, which led to large kinetic rate constant and small time to reach adsorption equilibrium.
    结果表明，吸附过程符合伪二级动力学方程，吸附活化能较小，反应速率较快，达到平衡的时间较短。
21. In addition, microwaves pre-treatment could increase the activation energy of ascorbic acid degradation and decrease the activation energy of peroxidase inactivation during water blanching of asparagus.
    另外，微波前处理可以增加芦笋热水温烫处理过程中维生素C降解的活化能并且减小过氧化物酶钝化的活化能。
22. The use of thermal analysis kinetics of activation energy of pyrite calculated to compare the different kinds of activation energy of the size of mine, in order to judge their self-ignition characteristics of the possibilities and provide the basis for spontaneous combustion.
    运用热分析动力学计算硫铁矿的活化能，比较不同矿样的活化能大小，为判断其自燃可能性和自燃特性研究提供依据。
23. During cold stress large amounts of body energy is used for anabolic, however the energy to protect the supply of immune and inflammatory activation reduced, which is related to metabolic inflammation.
    冷应激后机体大量的能量被用于分解代谢，而保障供给免疫和炎症的活化的能量减少，使机体产生代谢性炎症。
24. The crystallization kinetic activation energy parameters are good agreement with the results from isothermal crystallization processes of the polymer blends. The crystallization activation energy of PTT/ PBT blends is higher than the activation energy of PTT and PBT.
    结晶动力学活化能参数与共混物等温结晶过程的分析结果基本一致，PTT/PBT共混体系的结晶活化能高于PTT、PBT的结晶活化能。

noun

1. the energy that an atomic system must acquire before a process (such as an emission or reaction) can occur
   1. catalysts are said to reduce the energy of activation during the transition phase of a reaction

   Synonym:    activation energy