activation energy

1. The activation energy, before you can have reaction.
   这就是反应发生之前的活化能。
2. ENZYMES enhance reaction rates by lowering the activation energy.
   酶可以使反应的活化能降低从而加快反应速率。
3. The survey shows that the activation energy influenced by the reacting fraction is decreasing with reacting fraction increasing.
   结果表明，反应度对其分解表观活化能产生影响随反应度的增加，其活化能逐渐减小。
4. Activation energy, frequency factor and reaction order at low-temperature stage are lower than those at high-temperature stage.
   煤粉燃烧反应低温段的活化能和频率因子较高温段低，反应级数较小；
5. The kinetic analysis illustrated that the removal of aliphatic hydrogen had low activation energy, which relating to lots of free radicals in the thermal reaction system.
   动力学分析表明，脂肪氢脱除反应的活化能较低，与反应体系中存在大量自由基有关；
6. Relation between zeolite electronegativity and activation energy of desorption
   分子筛电负性与脱附活化能间关系的研究
7. The results show that there are obvious effects of the sizes on the rate constant, the reaction order and the activation energy;
   结果表明：反应物的粒度对反应的速率常数、反应级数、表观活化能和指前因子均有较大的影响；
8. Adsorption model, the thermodynamics parameters, sticking probability and activation energy of fluor hydronium on modified coke powders were investigated.
   考察了改性焦粉对氟离子吸附模型、热力学参数、粘附几率和活化能，初步探讨了吸附机理。
9. The association chain implied is general reactivity, delocalization, heat of reaction, activation energy, velocity constant.
   和该量有牵连的因素是一般活性，离域作用，反应热，活化能，速度常数。
10. The Diffusion Activation Energy and Electric Conductivity of Oxygen Ion of Oxide Nano-ceramic
    氧化物纳米陶瓷中氧离子扩散激活能和电导率
11. The rate of TSR in geologic settings is limited by temperature and activation energy.
    地质条件下热化学还原反应的速率受温度和活化能的制约。
12. The reaction rate constant and activation energy of soybean oil thermal polymerization reaction were determined by analysis of the change of viscosity.
    以大豆油为原料，根据热聚合反应过程中黏度的变化确定反应的速率常数及热聚合反应的活化能。
13. The activation energy was also directly related with the granule radius and components of fertilizer core.
    试验结果表明，活化能与颗粒半径、肥芯化合物组成有关。
14. The apparent rate constant, thereaetion order and the activation energy were measured.
    测定了反应的表观速率常数，反应级数及活化能。
15. Activation Energy of Temperature Programmed Desorption Calculated Using Least-Squares Method for Benzene, Thiophene and Octane on NaY
    最小二乘法计算苯、噻吩和正辛烷在NaY上程序升温脱附活化能最小二乘配置法，最小二乘拟合推估法
16. Time-temperature-transformation diagram The rate of TSR in geologic settings is limited by temperature and activation energy.
    时（间）温（度）变化图地质条件下热化学还原反应的速率受温度和活化能的制约。
17. For this purpose it is discussed how the activation energy affects complex modulus changing with temperature and frequency.
    为此探讨了激活能对复模量随频率和温度的影响。
18. The influence of diffusion activation energy of carbon atom and tempering time on tempering transformation of martensite are studied by using of the principle of carbon diffusion in martensite.
    根据马氏体回火过程中的碳原子扩散特征，分析和计算了碳扩散激活能和回火时间对马氏体组织的影响。
19. The reaction order and the reaction activation energy are determined and the reaction kinetic equation is set up.
    测定了反应级数和反应活化能，建立了反应动力学方程。
20. The calculations or the distributions of the relaxation time and the activation energy show that they have a broad distribution.
    计算了弛豫时间和激活能的分布，表明弛豫时间和激活能有宽的分布。
21. The electrical properties of the films were characterized by their room temperature electrical conductivity and the activation energy.
    利用薄膜的暗电导和激活能对硅薄膜的电学特性进行了表征。
22. At the same oxygen concentration, the average activation energy of sludge was higher than that of coal.
    相同氧浓度下，污泥的平均表观活化能比煤低。
23. The activation energy was introduced as a sensitivity indicator of release rate change under different temperatures.
    利用养分释放活化能来反映养分释放速度变化随温度变化的敏感程度。
24. The reaction of coal spontaneous combustion to produce ethylene is a spontaneous reaction judging by the reaction activation energy.
    由反应活化能可知，生成乙烯的反应是一个自发式反应。
25. Apparent Activation Energy for TiO_2 Ceramics Determined by the Master Sintering Curve and Arrhenius Plot
    利用主烧结曲线和Arrhenius曲线确定TiO2陶瓷表观激活能
26. The sintering activation energy is an important parameter for investigating the sintering mechanism.
    烧结激活能是研究物质烧结机理的重要参量。
27. Catalysts that lower markedly the activation energy of the reactions are required.
    需要显著降低反应活化能的催化剂。
28. The crystallization activation energy increases with the increase of CeO_2 content.
    玻璃的析晶活化能随着氧化铈含量的增加而增加；
29. The flowing activation energy of epoxy resin system declined obviously with the content of reactive fluorinated diluent added.
    随着含氟活性稀释剂的增加，环氧树脂体系的流动活化能明显下降。
30. Factors affecting the activity of urease in PPy film were studied and activation energy of the ferment was determined.
    研究了聚合条件对酶活性的影响，并测定了掺杂于聚吡咯中的脲酶的活化能等动力学参数。

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:    energy of activation