查询词典 activation energy

At the temperature range of 800～850℃, the deformation activation energy was very close to self-diffusion activation energy of grain boundary, which shows the main deformation mechanism is grain boundary sliding controlled by grain boundary diffusion.

在850℃变形激活能与晶界自扩散激活能十分相近，表明晶界扩散控制的晶界滑动是超塑性变形的主要机制。

The thermoinduced coloration system of fluorane/iodonium salt has been investigated. The kinatic studies of thermoinduced color development reaction in polymer film was performed. It was found that two different phenomena appeared in the relationship between reaction rate constant and temperature. A very low value of k〓(0〓mol〓·l·s〓) and very high energy of activation E〓(149 KJ·mol〓) observed in the region of low temperature, whereas a larger value of k〓(1~10 mol〓·1·s〓) and smaller energy of activation (E〓33 KJ·mol〓) displayed in the region of high temperature of 150℃.

研究了荧烷/碘鎓盐热致显色反应体系，进行了分子膜中热生色反应动力学的研究，发现热生色速度常数k〓和温度关系呈现二种不同情况：在低温区，k〓值很小（＜10〓mol·1·s），活化能很大（E〓=149KJ·mol〓）；而在高温区，k〓值较大（1~10〓mol·1·s），活化能较低（E〓=33KJ·mol〓），它们的转折点位于温度（T〓=119℃），表明高于T〓是进行热致显色反应的重要条件；考虑到它们用作热记录介质的可能，研究了熔融状态中热生色反应。

Based jellification dynamics theory that the larger the jellification activation energy, the greater the lubricant's jelling tendency, it is advisable to analysis the whole jellification process in attempt to find out maximum jellification activation energy Emax and its ambient temperature Tmax, as a ground for judging the lubricant's pumpability.

根据凝胶动力学理论，凝胶活化能越大，润滑油的凝固趋势越大，因此对润滑油应分析其凝胶全过程，从中找出最大凝胶活化能Emax以及开始出现最大活化能的温度Tmax，作为润滑油低温可泵性判据。

Marmatite ; pressure leaching ; iron kinetics ; reaction activation energy ; diffusion activation energy

高铁闪锌矿；加压酸浸； Fe动力学；反应活化能；扩散活化能

The activation energy for deformation in W18Cr4V high speed steel, 40CrMnNiMo tool steel for plastic molding and AISI H13 hot-work tool steel are investigated intensively. The investigation shows that the activation energy for deformation of both 40CrMnNiMo tool steel for plastic molding and AISI H13 hot-work tool steel decrease with the increasing of temperature.

分别将这两种钢的变形激活能数学模型用于蠕变模型，并采用这一改进后的蠕变模型对W18Cr4V高速钢和40CrMnNiMo塑模钢的热变形流变应力进行预测，结果表明，此模型不仅能精确描述蠕变条件下工模钢的流变应力变化规律，也能精确描述工模钢非蠕变条件下的流变应力。

To estimate the activation energy of the decomposition, the Friedman isoconversional method was applied. The activation energy was calculated as a function of conversion. The results confirm that more than one reaction occurs in the decomposition of basic zinc carbonate.

采用Friedman法对实验数据进行分析，结果表明，反应的活化能数值随着分解率的不同而变化，由此推断该反应是由多步反应组合而成的，其平均表观活化能E。

The results indicated that a dependable kinetic model could be obtained by modifying the Temkin equation by considering the H2 and NH3 adsorption factors. Activation energy for the ammonia synthesis reaction was obtained as 90.2 kJmol^(-1) after linear fitting the kinetic and thermodynamic parameters k, K(subscript H2) and K(subscript NH3) with the Arrhenius and Van't Hoff equation, which was much lower than that over iron-based catalyst, which indicated that the activation energy barrier of N2 dissociative adsorption on Ru was far lower than that on either the conventional magnetite-based catalyst or wustite-based catalyst; the hydrogen adsorption heat was 76.2 kJ mol^(-1), indicating that the adsorption of hydrogen on the Ba-Ru-K/AC catalyst was so strong that it inhibitied the dissociative adsorption of nitrogen.

结果表明，在Temkin方程中加入H2和NH3的吸附项能够获得可靠的动力学模型，用Arrhenius和Van't Hoff方程对动力学和热力学参数k、K(下标 H2)和K(下标 NH3)进行线性拟合，得到氨合成反应的活化能为90.2 kJmol^(-1)，远低于铁基催化剂，说明Ru上N2的解离吸附活化能垒远低于传统磁铁矿基催化剂和维氏体基催化剂。H2的吸附热为76.2 kJmol^(-1)，证明Ba-Ru-K/AC催化剂上H2的吸附较强烈，对N2的吸附有强烈的抑制作用。

Once the temperature of the environment exceeds the critical explosion temperature, the delayed-action time will shorten along with the temperature of the environment ascending;(2) The thermal decomposition reactivity activation energy and correlative parameters of the emulsion explosive matrix and corresponding mixture of emulison explosive with combustible oil solvent were obtained by iron-plate experiment, thereinto, the activation energy of the emulsion explosive matrix is 163.3kJ/mol.

一旦环境温度超过临界爆炸温度，随环境温度的升高，爆炸延滞期将变短；(2)通过铁板实验获得了乳化炸药基质及其与有机溶剂混合物的活化能和相关参数，其中乳化炸药基质的活化能为163.3kJ/mol。

Solar energy in photovoltaic system is a mode of electric power generation directly which use solar cell of electronic device of semiconductor to generate power by absorbing solar radiation energy effectively and make it to change electrical energy,it is a principal way of dealing with energy shortage and protecting the environment against pollution to exploit and make use of solar energy which is regenerative and clean to generate electrical energy.

太阳能光伏发电是利用太阳能电池这种半导体电子器件有效地吸收太阳光辐射能，并使之转换成电能的直接发电方式。开发利用太阳能这种可再生的清洁能源发电是解决能源短缺、保护环境的重要途径。

However, energy crisis, environmental protection consciousness and new energy development have already become an important issue in the 21st century. In order to popularize the discussion of the domain of the social science, this research was at one's own expense by Dr. Tsai MeiYing of Shih Hsin University. In addition, United Nations Industrial Development Organization - International Centre for Hydrogen Energy Technologies (UNIDO-ICHET) sponsored the investigation. Planning to correspond with the orientation of dissemination and following the highlight of topics, such as global warming, oil price upsurge and Kyoto Protocol etc., which has caused the obviousness of the new energy media issues in recent years, we probe into how media reported the new energy issues and what the core frame of media's report was. Simultaneously, we discuss further the concern degree and viewpoint of new energy relevant domain's opinion leaders and innovators to this topic of media's report.

因应能源危机、环保意识、新能源发展已成为21世纪重要的议题，为推广社会科学领域的探讨，本研究由世新大学蔡美瑛博士自费，联合国工业发展组织-氢能源科技国际中心（UNIDO-ICHET）赞助调查，拟从传播面向切入，探讨随著全球暖化、油价高涨、《京都议定书》规范等议题的彰显，导致近年来新能源媒介议题的兴起，媒体是如何报导新能源议题以及报导的核心框架，同时进一步探讨新能源相关领域意见领袖及创新者对於媒体报导此议题的关注度及看法。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。