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化学动力学参数     
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  chemical kinetics parameters
     Chemical kinetics parameters,in terms of the apparent activation energy E and the pre exponential factor A 0 ,are calculated based on thermogravimetric results.
     根据热重分析结果 ,计算了轮胎裂解的化学动力学参数 :表现活化能 E和频率因子 A0 。
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     2 Elemental and industrial analyses and TG experiments on origin wood and solid product of smolder are studied. In this part, chemical kinetics parameters are also gained.
     2、对原始木屑和阴燃固体产物进行了元素分析、工业分析和热重分析,并且计算出原始木屑和炭的化学动力学参数
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     The time of change of mechanical property of red clay in Guizhou under acid environment is predicted by chemical kinetics parameters of synthetic goethite, The result shows that the prediction is feasible of strength change of natural soils with chemical kinetics property of synthetic mineral.
     本文以合成针铁矿的化学动力学参数,对贵州红粘土在酸性环境下的力学特性变化的时间规律作了探讨,结果表明,用合成矿物的化学动力学特性预报天然土强度变化的时间是可行的。
短句来源
  chemical kinetic parameters
     Estimating Chemical Kinetic Parameters by Prony Method and Its Programming
     用普朗尼法估算化学动力学参数及程序设计
短句来源
     Determination of Chemical Kinetic Parameters of Single-base Propellant with Microcalorimetry
     微热量热法测定单基发射药的化学动力学参数
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     The result showed that the degradation of dideoxycytidine involved a parallel reaction and its chemical kinetic parameters were determined as follows: the rate constant K_(25) of 1.112×10~(-3) h~(-1), the activation energy E_a of 113.28 kJMol~(-1), and the frequency factor A of 8.22×10~(16)h~(-1).
     结果表明本品在酸性介质中降解为一平行反应,并测得其化学动力学参数:25℃反应速度常数为1.112×10~(-3) h~(-1); 反应活化能为113.28 kJ mol~(-1);
短句来源
     The chemical kinetic parameters including the apparent activation energy E and the pre-exponential factor A_0 were obtained based on the thermogravimetric results.
     并根据化学动力学方法计算了各过程的化学动力学参数,即活化能E和频率因子A0。
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  “化学动力学参数”译为未确定词的双语例句
     According to the cyclic voltammetry(CV) curve of LaxSr1-xNiO3( x=0.15, 0.70, 0.75,1.00)function al oxygen electrode at various temperature, the chemical dynamic parameter ln Ic and 1/T, or -ln Va and 1/T, are both linear, while the activation energy of oxygen reduction and evolution are obtained.
     通过不同温度下LaxSr1-xNiO3(x=0.15,0.70,0.75,1.00)的功能氧电极循环伏安曲线,得出化学动力学参数lnIc与1/T,-lnVa与1/T成直线关系,得到氧还原和氧析出的活化能;
短句来源
     The weight average activation energies of oil cracking to gas under the high-pressure experiments are much higher than that of relative low-pressure experiments.
     与由非高压条件下油裂解成气实验所得化学动力学参数相比 ,高压条件下油裂解成气的加权平均活化能明显偏高。
短句来源
     A Quick Calculating Method of Jacobian Matrix in Chemical kinetic Parameter Estimation
     化学动力学参数估值计算中Jacobi矩阵的快速计算
短句来源
     (4) BBC derivatives have good electrochemical activities on glass carbon electrodein phosphate buffer. Each one of them underwent an irreversible oxidation . Theprocess was controlled by the rate of electrode reaction.
     (4)巴比妥酸及其衍生物在磷酸缓冲液中玻璃碳电极上有良好的电化学响应,均为一受电极反应速率控制的不可逆的电极反应,并获得了对羟基苯甲醛与巴比妥酸缩合物可能的电化学氧化机理及化学动力学参数βn。
短句来源
     This paper introduces heat self-ignite theory and dynamics disciplinarian of chemistry reaction process at first, analyzes the influence of chemistry dynamics parameter (such as activation energy and frequency gene and reaction heat, etc) to temperature ascend.
     本文首先介绍了热自燃理论以及化学反应过程的动力学规律,分析了活化能、指前因子、反应热等化学动力学参数对温升的影响。
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  chemical kinetics parameters
Experimental validation of lamp heating models and experimental determination of chemical kinetics parameters are also presented.
      


The turbulent diffusion flame including its extinction is predicted by the ESCIMO theory. In the Biography the finite rate model of chemical reaction is employed, which provides an approach to predictions of effects of the stretching rate and chemical kinetics on turbulent flames.

阐述ESCIMO湍流燃烧理论的要点,在它的“经历”部分引入有限化学反应速率模型,从而提供了定量估计流体拉伸速率和化学动力学参数对湍流燃烧速率的影响的途径;对湍流射流扩散火焰进行了数值分析,其结果与已发表的实验趋势相符合。

A generalized devolatilization model for pulverized coal is proposed in this paper. The difference between the present model and previous ones is that the equivalent activation energy, E, and the equivalent frequency factor, K, of coal particle devolatilization are independent of coal type, and depend only on the final temperature, Too, of the coal particles. This is a new conclusion. The relationship between E/'K and T∞ has been obtained and is found to be universal for all coal types. If the final volatile...

A generalized devolatilization model for pulverized coal is proposed in this paper. The difference between the present model and previous ones is that the equivalent activation energy, E, and the equivalent frequency factor, K, of coal particle devolatilization are independent of coal type, and depend only on the final temperature, Too, of the coal particles. This is a new conclusion. The relationship between E/'K and T∞ has been obtained and is found to be universal for all coal types. If the final volatile yield, V∞ is determined under certain conditions, the devolatilization processes of fine particles for any coal type can be predicted by using the present model.This model has been tested with bituminous, lignite, low volatile and low grad coals. The coal devolatilization process is studed in the drop tube heated by an arc plasma jet using Ar/N2 as a operating gas and electrical heating elements. The experimental conditions are as follows: the diameters of the coal particles ranging from 35 μm to 100μm, the heating rate of a coal particle being more than 104 K/s, the temperature ranging 973-1773 K and the queching rate of coal samples being more than 105 K/s. The volatile yield is obtained by using the ash tracer. The gas flow inside drop tube is laminar, so that the dispersion of coal particles in the tube is quiet small.

本文提出了粉煤挥发份析出的通用热解模型。该模型与现有的其他模型相比,主要特点是挥发份析出时的化学动力学参数E、K不随煤种变化,仅是颗粒最终温度T_∞的函数。这是一个新的结论。本文还得到了E(或K)和T_∞间的关系,它适用于所有的煤种。若在一定条件下得到粉煤挥发份的最终产量V_∞,则可用该模型预示任何煤种的挥发份析出过程。 本文报道了烟煤、褐煤、劣质烟煤、贫煤在高温下降炉中、加热气体为Ar、N_2和He的条件下,其挥发份的析出过程。煤颗粒的加热速率大于10~4K/s,直径从35μm—100μm,温度范围为973—1773K,取样时颗粒的冷却速率大于10~5K/s。确定挥发份的产量利用灰作示踪剂。气体在高温反应炉内的流动是层流运动,且颗粒在下降过程中弥散很小。

Shock tube is a very important tool in the study of high temperature chemical kinetics, but there exist some drawbacks in its application for accurate measurement of chemical kinetic parameters.This paper is concerned with the study of using non-tailor chemical shock tube for overcoming the shortage and getting the good chemical kinetic results.The kinetic parameters for two reactions, t-butyl chloride decomposition and ethylene oxide isomerization were studied under non-tailor condition. Experimental results...

Shock tube is a very important tool in the study of high temperature chemical kinetics, but there exist some drawbacks in its application for accurate measurement of chemical kinetic parameters.This paper is concerned with the study of using non-tailor chemical shock tube for overcoming the shortage and getting the good chemical kinetic results.The kinetic parameters for two reactions, t-butyl chloride decomposition and ethylene oxide isomerization were studied under non-tailor condition. Experimental results showed that good results could be obtained by using the comparative method instead of using the calculation method to get the temperature of system by shock velocity.

激波管是研究高温化学反应动力学的一个很重要工具。但由于激波管本身存在着一些弱点影响了它在化学中的应用,为此本文研究在非缝合条件下激波管的化学动力学参数测定,其目的在于考查如何克服激波管的弱点及准确测定化学反应动力学参数问题。文中测定叔丁基氯和环氧乙烷反应动力学参数,结果证明,应用比较法可使在非缝合条件下激波管测定的动力参数与缝合条件下测定的参数在误差范围内达到一致。

 
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