查询词典 activation energy

The results indicate that the flow stress of the alloy increases with increasing strain rate and decreasing deformation temperature. The flow stress increases with increasing strain until the stress reaches the peak value, then the flow stress remains constant, which indicates that dynamic recrystallization happens during deformation. The flow behaviors are described by the hyperbolic sine constitutive equation, and the activation energy calculated is 337.75 kJ/mol. The as-forged microstructure consists of refined α2/γ and γ grains, and the grains are much homogeneous than before. The B2 phase distributes uniformly at the grain boundary of α2/γ and γ grains. The B2 phase decreases with increasing deformation temperature.

结果表明：流变应力随着应变速率提高和变形温度降低而增大；在变形过程中，流变应力随着变形量增大而增大，当流变应力达到峰值后趋于平稳，表明合金在变形过程中发生了动态再结晶；热变形过程的流变应力可采用双曲正弦本构关系来描述，平均激活能为337.75 kJ/mol；从合金的组织演化过程中可以看出，合金中不均匀的原始组织得到明显均匀化，变形后的组织是由α2/γ层片晶团和γ晶粒组成的双态组织，在α2/γ层片晶团和γ晶粒的晶界交界处发现分布均匀的B2相，并且随着变形温度升高B2相数量逐渐减少。

On the other hard, intergranular carbides also increase the stress sensitivity of creep rate and creep activation energy.

利用该模型和单相合金的数据不仅能预测晶界析出合金的蠕变速率而且能导出后者的应力指数和激活能。

Invariability of the rate law and activation energy of the decomposition on doping suggests that the complex behavior is not due to a change of mechanism.

不变性率法和活化能分解掺杂认为，复杂的行为，是不是因为要改机制。

The isochronal DSC results fit well with the Kissinger relation with apparent activation energy 2.76 eV.

等时DSC曲线的峰值温度与Kissinger关系符合得较好，并得出其表观激活能为2.76eV。

The activation energy distribution during 25, 100 ℃ isothermal annealing and 25-250 ℃ isochronal annealing for post-irradiation CMOS devices are calculated by annealing model.

根据退火模型计算了CMOS器件辐照后25、100 oC等温和25～250 ℃等时退火过程中激发能的分布。

Integral method with 31 types of kinetic function was proposed to define the most probable kinetic function g; the Ozawa、KAS and iterative procedure methods were employed to calculate the activation energy E.

采用积分法结合31种动力学函数来判断亚胺化反应的函数g，由Ozawa、KAS和迭代法求取活化能Ea值。

With the concept of activation energy and the kinetic theory of gases, based on that the molecule must go through the process of the collision in order to react.

以活化能概念和气体分子运动论为基础，认为分子必须经过碰撞的过程才能发生反应。

Methanol molecule participates in the proton transfer process, which takes place by a intermolecular six-membered proton-transfer transition state structure instead of the intramolecular four- membered. Consequently, the activation energy of the proton-transfer process is reduced greatly,resulting in the carbon-carbon bond formation process become the rate-determining step. The results are consistent with Aggarwal's the latest dynamics experiments.

CH3OH分子参与质子转移过程，使得原本通过四元环结构过渡态的质子转移过程通过六元环结构过渡态实现，从而极大地降低了质子转移过程的活化能，碳-碳键形成过程进而成为反应的速度控制步骤，研究结果与Aggarwal等的最新动力学研究成果相吻合。

The measurements of the transport properties indicate that the crystal exhibits a semiconductor behavior with p-type carriers and the thermal activation energy was estimated to be about 0.18 eV.

我们测量了制备样品的电阻率和热电势特性，样品表现出典型的p型半导体行为。经对电阻率和热电势数据的拟合，得到样品的热激活能△=0.16-0.18eV。

We also prove the degrading mechanism is independent of the effect of parasitical resistance and explain the change of the threshold voltage and mobility by activation energy extraction under mechanical strain.

我们也做了处於挠曲状态下寄生电阻与活化能的参数萃取分析，证明了应力挠曲所造成的劣化效应与寄生电阻无关以及从活化能的改变上进一步地解释了电子迁移率和临界电压的劣化情形。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。