查询词典 activation energy

This technology makes use of the catalyst, which is coated on the surface of the catalyst monoliths, to reduce activation energy during combustation. In this way, the combustion efficiency is improved and the pollutant emission is reduced.

催化燃烧技术是利用催化剂载体表面涂覆的催化剂来降低燃料燃烧的活化能，从而使得燃烧更易进行，这样不仅提高了燃烧效率，而且可以有效地降低污染物的排放。

The isothermal kinetics of nanogram obtained by MA has been studied in section three. The grain growth of α solid solution of Fe〓CuNb〓Si〓B〓 powders is controlled by a single kinetics within the experimental temperature range, the activation energy for grain growth is 80.3kJ/mol, magnetic properties of powders at different annealing and milling conditions are measured, a preliminary effort has been given to the consolidation of Fe〓CuNb〓Si〓B〓 powders.

第三部分研究了机械纳米晶化粉末的等温晶粒长大动力学，在实验研究的温度范围内，Fe〓CuNb〓Si〓B〓纳米晶α固溶体的晶粒长大由单一的动力学过程所控制，其晶粒长大激活能为80.3kJ/mol，研究了不同球磨条件及热处理条件下纳米晶粉末的磁性，对纳米晶粉末的成型进行了初步的尝试。

Decreasing of reaction activation energy and augment of surfacearea accelerate reaction process of nano-crystalline ore powder.

反应活化能降低与反应面积增加显著加快反应的进行。

The particle size of nanosized zinc carbonate is between 5 nm and 40 nm, and its kinetic parameters of thermal decomposition reaction---activation energy E and reaction order n are 110 kJ.mol－1 and 0.9, respectively.

用透射电子显微镜观察1号、2号和3号纳米碳酸锌粒子，可以看到粒子形状为椭球形，大小均匀，分散性好，没有明显的团聚现象，粒径分别在20～40nm、6～10nm、5～8nm之间；并且用微粒度测定仪测得了粉体的粒度分布图，表明纳米碳酸锌粒子的分布很窄。

It is discovered that there is a satisfied linear relationship between the experimental impact sensitivity and the activation energy of the ring breaking reaction.

首次提出并运用&取代基模型&(即将金属原子视为四唑环上的取代基、对金属配合物的处理采取与计算衍生物完全相同的模式)较为简便地计算研究了系列四唑金属配合物的热解反应，发现开环形成叠氮化物的活化能与它们的实验撞击感度之间存在良好的线性关系。

The activation energy of B ring elementary reaction is between 16～20kJ/mol.

从IRC结果以及对过渡态结构的电子密度拓扑学分析结果可以确定，羟基自由基在反应过程之中抽取了黄酮类化合物A环上未参与分子内氢键结构的酚羟基上的氢原子形成水分子及稳定性更高的半醌式大环自由基，在整个过程之中羟基自由基从反应物一侧进攻并逐渐发生扭转，直至形成一个进平面结构的过渡态结构，这与上一章关于黄酮类化合物B环的研究结果基本一致。

The result shows that the elimination reaction and ring closing reaction are synergistic, and the hydrogen in the elimination reaction derives from hydroxyl. In addition, the activation energy of the reaction is 139.2kJ/mol.

计算结果表明，该反应中的消除反应和成环反应是协同进行的，溴化氢消除反应中的氢来自与O(22)相连的羟基氢，反应的活化势垒为139.2kJ/mol，反应放热25.1kJ/mol。

The study shows that the activation energy of most shell is 1/3-2/3 of the limestone, the product-layer coefficient magnitude is 1 magnitude higher than that of limestone, and the specific surface area, specific pore volume, and the average pore radius are all bigger than that of limestone. So shells are fit for coal combustion sulfur retention in high temperature (900-1000℃).

贝壳与石灰石的比较性实验表明：大部分贝壳的固硫反应活化能是石灰石的1／3-2／3，产物层扩散系数比石灰石高出一个数量级，内部微观结构如比表面积、比孔容、最可几孔半径等都比石灰石大，贝壳更适合作高温（900℃-1000℃）下的燃煤固硫剂。

The rate constant k ,the activation energy.and induction period of the transestetifieation reaction for the PET/PEN reactive blend were obtained using a kinetic expression based on a second-order reversible reaction mechanism.

根据酯交换反应程度和不同反应温度下的诱导期探讨了酯交换反应与相容性的关系，认为PET与PEN的相容导致或增强了酯交换反应，即相容性是酯交换的必要条件；同时酯交换的发生又促进了PET与PEN的相容。

The results show that the flow stress increases with the increase of the strain rate, and decreases with the increase of the deforming temperature. The saw tooth fluctuation of the flow stress at higher strain rates and lower temperatures indicates the discontinuous dynamic recrystallization. The flow stress of the aluminum alloy during hot compression deformation can be described by using Zener-Hollomon parameter including Arrhenius item, and the deformation activation energy is 176.54 kJ/mol.

研究结果表明：流变应力随应变速率的增大而增大，随变形温度的升高而降低，在高应变速率和较低温度条件下，应力出现据齿波动，呈不连续再结晶特征；该铝合金热压缩变形的流变应力行为可用包含Arrhenius项的Zener-Hollomon参数来描述，其变形激活能为176.54 kJ/mol。

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。