查询词典 activation energy

On the basis of DSC curves of B/KNO_3 igniter powder,the apparent activation energy E of thermal decomposition is calculated with Kissinger′s methods and the probable mechanism function is available from master plot method.

利用差示扫描量热法得到B/KNO3的热分解曲线，用K iss inger方程估算了B/KNO3的表观活化能，用标准作图法得到最可几热分解机理函数，再用积分法求得不同升温速率下热分解的动力学参数活化能E和指前因子A。

heological properties at a low shear rate range(10-2-10s-1) and the glass transition temperatures for PEK-C with different moleCular weithts have been studied by using a cone/plate rheometer and DSC' The activation energy for melt flow increases with Mw The dependence of Tg on molecular weight exhibits two linear range and the value of nitersect agrees with the critical molecular weight , Mc' which is first reported for PEK-C' Mc value obtained according to η0 is about 8× 104 g/mol and the relation between Mc and temperature was dis-cussed.

用锥权流变仪及DSC的方法研究了5种不同分子量的酞侧基聚芳醚酮在低剪切速率区（10－2－10s－1）的流变行为及其分子量与玻璃化转变温度的关系。结果表明，样品的粘流活化能随分子量的增加而增大，Tg随分子量的变化是二个线性区，其交点值与所求的样品的临界分子量值相对应。利用测得的零剪切粘度值（η0）首次求得了PEK—C的临界分子量值。同时也讨论了Mc与温度及η0和Tg与分子量的关系。

For the oxidation channel from OH group migration to O atom insertion,the activation energy barriers for OH migration are 58.4,65.3, and 79.2 kcal/mol,respectively,whereas those for O atom insertions beginning with directly destroying Si_a-Si_s backbonds by a foreign H_2O molecule are much lower,the respective values are 19.0,16.7,and 24.8 kcal/mol.

对于先经过OH迁移致使O原子插入Si_a-Si_s backbond的氧化途径，OH迁移所克服的能垒依次为58.4、65.3和79.2 kcal/mol，而H_2O以O原子进攻Si_a位来打开Si_a-Si_s键进而使O原子插入的能垒则相对较低，仅为19.0、16.7和24.8 kcal/mol。

This desiccant has a disadvantage as being agglomeration after regeneration.In addition, mechanism of moisture adsorption of corn hull desiccants. By the phenomena of adsorption and calculative activation energy, the mechanism of moisture adsorption was validated.

另外，本文对玉米渣皮干燥剂的吸附机理进行了探讨，并通过玉米渣皮干燥剂吸水过程中所表现出的性质和吸附活化能的计算结果对吸附机理进行了验证。

The results show that in the sintering process of clinker more La and Ce are distributed in the silicate phase, which form into solid solution with it ; The dopping effects of La and Ce induce the aberrance of stress field of diffusive medium, which decrease the activation energy of particles diffusing, and accelerate particles diffusing during the solid state reaction.

结果表明，稀土元素La和Y在熟料煅烧过程中更多地分布在硅酸盐相中形成固溶体；稀土离子的掺杂作用，导致扩散介质中应力场的畸变，降低了质点的扩散活化能，从而对固相反应中的质点扩散起促进作用。

The results show that transition temperatures of eight wheat gluten doughs are 52.6～58.5℃; between the temperature of 0.1℃ and 40℃, apparent activation energy, which is 4602.57～6511.16 J/mol, are calculated out according to time-temperature superposition method. Fitting in both Arrhenius and WLF modes generates the identical master curves.

试验表明：面筋蛋白转变温度在52.6～58.5℃间；0.1～40℃间，频率扫描下，时间-温度叠加法算出20℃时表观活化能在4602.57～6511.16 J/mol间，不同样品间有较大的差异；Arrhenius模型和WLF模型在拟合面筋系统叠合曲线的效果上一致。

The catalytic reaction was first-order for both Ir and methyl blue with the apparent activation energy of 51.14 kJ/mol.

该催化反应对铱和甲基蓝分别为一级反应，其表现活化能为51.14 kJ/mol。

The results show that the reaction of EMAL pyrolysis occurs between 150℃ and 600℃, and the kinetic model of EMAL pyrolysis can be simulated with a first-order reaction, and the obtained activation energy increases with the increase of heating rates.

研究结果表明毛竹EMAL热解反应的主要温度范围是150~600℃，其热解动力学模型可用一级反应表征，所得活化能随升温速率的增大而增加。

The relationship between the apparent viscosity and temperature can be expressed by Arrhenius Equation. But there is a flex point during heating, and the viscous flow activation energy at the low temperature is greater than that at the high temperature.

液化残渣的黏度－温度关系符合Arrhenius关系式，但在升温过程中出现了拐点，低温段的黏流活化能比高温段的要大。

With increasing iodine value,the activation energy of vegetable oil hydrolysis in near-critical water decreased.

油脂水解活化能与其碘价密切相关，随着油脂碘价的增加，水解活化能逐渐降低。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。