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峰顶温度
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  peak temperature
    In TPSR of CO, it was found that the desorbed amount of CO 2 and the peak temperature follow the same order as their activities.
    并发现在CO-TPSR过程中程脱物CO2的脱附量大小及峰顶温度次序与对CO的催化氧化活性也有一致的关系
短句来源
    The results show that the curing activity was so greatly enhanced that the curing peak temperature decreased from 190 ℃ for the unmodified system to 120~140 ℃ for the modified systems, and the apparent activation energy of curing reaction decreased from 131 kJ/mol to 70~ 80 kJ/mol .
    结果表明 ,经过改性的固化体系的固化反应活性明显提高 ,固化反应峰顶温度从未改性体系的 1 90℃降至 1 2 0~ 1 4 0℃ ,表观活化能从未改性体系的 1 31 k J/mol降至 70~80 k J/mol.
短句来源
    From 189 ℃ to 236 ℃, the thermal decomposition process occurs with the peak temperature at 210 ℃. The mass percent of solid residue is up to 25%.
    在189~236℃范围内发生热分解,峰顶温度为210℃,固相残渣含量为25%;
短句来源
    Temperature-programmed surface reaction (TPSR) was used to study the catalyst after O2 chemisorption in 4.8% H2/Ar. Only a peak on the TPSR spectra was observed, the lower the peak temperature, the higher the activity is. It suggests that the strength of O2 chemisovbed bond is also related to /the HDN activity.
    氧吸附后的原位H_2-TPSR显示一个谱带,峰顶温度较低的催化剂的加氢脱氮活性较高,因此O_2吸附键的强弱亦与活性有关。
短句来源
    The peak temperature of the second change is about 300℃,and is probably due to a condensation occurred at the high temperature.
    第二个转变的转变峰顶温度在 30 0℃附近 ,与木质素的高温缩合反应相关 ;
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  “峰顶温度”译为未确定词的双语例句
    The Relationship of Peak Temperatures of DTG,DTA and DSC Curves in A First-Order Reaction
    Ⅰ级反应DTG,DTA与DSC曲线峰顶温度关系的研究
短句来源
    According to the mathematical character of the peak of thermal analysis curve and by using of Coats-Redfern equation,the compensation effect having kinetics significance was discovered for a series of related reactions,if the peak tempertures of those reactions are close each other at certain expcriment conditions.
    根据热分析谱图峰顶的数学特征与Coats-Redfern方程,推得在一定实验条件下,在系列相关反应中,若峰顶温度相接近,则各反应的表观活化能E与指前因子A之间存在着有动力学意义的补偿效应,即InA=aE+b。
短句来源
    The results show that initial degradation temperature of PPVL film, the top temperature of DTG peak and the temination temperature of DTG peak, as well as the initial exothemal temperature and the top temperature of DTA peak change along with the vulcanization process.
    结果表明,过氧化物预硫化胶乳胶膜的起始降解温度、DTG峰顶温度和DTG峰的终止温度、起始放热温度和DTA峰顶温度均随硫化过程发生变化。
短句来源
    When the concentration of acetic acid is increased, the crystallization temperature decreases, and the structure of microcrystals is transformed from disorder into order and crystallite becomes regular tetragonal system.
    醋酸浓度增大 ,晶化峰顶温度降低 ,晶化放热峰向低温移动。 热处理温度升高 ,微晶结构从无序向有序转变 ,同时晶粒由不规则形状变成规则的四边形态
短句来源
    The data of the thermal decomposition of two complexes were determined in flow atmosphere of high purity nitrogen by differential scanning calorimetry (DSC) , the thermal decomposition course of them were composed of two exothermic peak, the temperature of them begin break were 497. 2 K and 491. 8 K, the temperature of peak top of them were 564. 4 K and 613. 2 K, 544.4 K and 615. 1 K, the enthalpy values of thermal decomposition were 2026 kJ/mol and 961. 2 kJ/mol,2596kJ/mol and 1 097 kJ/mol by DSC determined,respectively, result show complexes have higher thermal stability.
    用差示扫描量热法(DSC)在高纯流动N2气氛下测定了两种配合物的热分解数据,它们的热分解过程都是由两个放热峰组成,两个配合物开始分解的温度分别为497.2K,491.8K,峰顶温度分别为564.4K和613.2K,544.4K和615.1K,热分解焓值分别为2026kJ/mol和961.2kJ/mol,2596kJ/mol和1097kJ/mol. 测定结果表明配合物有较高的热稳定性.
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  peak temperature
The possibility of reconstructing a two-peak temperature distribution by the proposed method is demonstrated.
      
Effect of orientation on the peak temperature of the yield-stress anomaly in single crystals of the Ni3Ge alloy
      
Temperature dependence of the yield stress τc(T) and shear stresses, as well as the orientation dependence of the peak temperature Tp of the yield-stress anomaly have been studied on single crystals of the Ni3Ge alloy.
      
The peak temperature Tp corresponds to the maximum in the τc(T) dependence.
      
It is shown that in the case of the above equality it is possible to describe the orientation dependence of the peak temperature Tp of the temperature anomaly of the yield stress in single crystals of Ni3Ge.
      
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Diffusion of benzene, toluene and ethylbenzene in mordentie, ZSM-5 and HZSM-5 was studied by temperature programed desorption method, and effective diffusion coefficient and diffusion activity energy were measured.

本工作用程序升温脱附色谱法,研究苯、甲苯、乙基苯和二甲苯等在丝光沸石、ZSM-5和HZSM-5分子筛中的扩散作用,发现脱附峰峰顶温度随吸附质性质或分子筛类型的不同而不同;同时,同一类分子筛(如ZSM-5)中一部分Na~+被H~+交换后,其脱附峰峰顶温度降低。根据其脱附特征蜂,计算了它们的扩散活化能E、频率因子D_0和有效扩散系统D_e,获得了有关扩散规律性的一些重要信息。

Oxygen chemisorption capacities of four sulfided alumina-supported Mo-Ni catalysts were determined by static adsorption method at -78℃.A linear relationship between the low temperature O. chemisorption (LTOC) and residual nitrogen in oil product was observed. It indicates that the LTOC method can be used to distinguish the small difference in hydrodenitrogenation (HDN) catalyst activity. Temperature-programmed surface reaction (TPSR) was used to study the catalyst after O2 chemisorption in 4.8% H2/Ar. Only a...

Oxygen chemisorption capacities of four sulfided alumina-supported Mo-Ni catalysts were determined by static adsorption method at -78℃.A linear relationship between the low temperature O. chemisorption (LTOC) and residual nitrogen in oil product was observed. It indicates that the LTOC method can be used to distinguish the small difference in hydrodenitrogenation (HDN) catalyst activity. Temperature-programmed surface reaction (TPSR) was used to study the catalyst after O2 chemisorption in 4.8% H2/Ar. Only a peak on the TPSR spectra was observed, the lower the peak temperature, the higher the activity is.It suggests that the strength of O2 chemisovbed bond is also related to /the HDN activity. After hydrogen reduction, the ESR signal of the catalyst chemisorbed with O2 is the same as that before O2 chemisorption, therefore, no structure change takes place caused by O2 chemisorption.

应用静态法测定了四种硫化Mo-Ni催化剂的低温氧吸附量及氧吸附后的原位氢程序升温表面反应,并测定了过程中的ESR信号。获得了氧吸附量与加氢脱氮生成油中含氮量(<20ppm)的线性关系,表明低温氧吸附方法可鉴别活性差别较小的催化剂。氧吸附后的原位H_2-TPSR显示一个谱带,峰顶温度较低的催化剂的加氢脱氮活性较高,因此O_2吸附键的强弱亦与活性有关。经过H_2还原后催化剂的ESR信号与O_2吸附前的一致,说明O_2吸附没有影响催化剂的结构。

The surface acidity of the ZSM-5 zeolite can be measured using a front-chromatograph carring in the organic base and combining with TPD technique. In the process of converting methonal to high octone number gasoline, the HZSM-5 catalyst appears in a strong acid peak at high temperature region as compared with Y-type and moderate zeolites. Along with the increase of regenarating times, the acid concentration on the HZSM-5 surface is gradually reduced and the strong acid peak is moved toward the lower temperature...

The surface acidity of the ZSM-5 zeolite can be measured using a front-chromatograph carring in the organic base and combining with TPD technique. In the process of converting methonal to high octone number gasoline, the HZSM-5 catalyst appears in a strong acid peak at high temperature region as compared with Y-type and moderate zeolites. Along with the increase of regenarating times, the acid concentration on the HZSM-5 surface is gradually reduced and the strong acid peak is moved toward the lower temperature region. Therefore, the aromatic content in the products is decreased. Based on the analytical procedures proposed in this study, the reasonable explanations for describing the reaction mechanism in the conversion of high octane value gasoline from methonal on HZSM-5 catalyst have been provided.

本文介绍了用有机碱的迎头色谱法配合TPD技术测定ZSM-5分子筛催化剂的表面酸性,以甲醇转化高辛烷值汽油的HZSM—5催化剂为例,观察到了它有与Y型及氢丝光沸石不同的高温部分强酸峰,因此它能使甲醇转化成高辛烷值汽油,随着催化剂再生次数的增加,酸量逐渐减少,强酸峰顶温度向低温方向转移,油品中芳烃含量也逐渐降低。这一方法的建立,为进一步了解在HZSM—5催化剂上甲醇转化成高辛烷值汽油的机理提供了有价值的信息。

 
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