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arrhenius定律
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  arrhenius law
     Activation energies of coke-CO2 gasification under 0.1,1.0,2.0 MPa calculated from the Arrhenius law were 197.7,233.4,218.2 kJ/mol,respectively,which were in accordance with reported data.
     模型中的参数rm与温度的关系符合Arrhenius定律,由此求出0.1、1.0、2.0 MPa下石油焦CO2气化的活化能分别为197.7、233.4、218.2 kJ/mol,与文献数据相符。
短句来源
     The atom formation activation energy of Cd, Pb, Sb, In, and Cu is calculated by using Arrhenius law, and the results are in agreement with the latent heat of vaporization of the metal for Cd, Pb, and Sb and the bond energy of the double atoms for In and Cu.
     应用Arrhenius定律,计算了探针原子化测定Cd、Pb、Sb、In和Cu的原子形成活化能。 结果表明,Cd、Pb和Sb的活化能与它们的金属气化热一致,Cu和In的活化能与它们的双原子分子的键能一致。
短句来源
     The relationship between electrical conductivity and temperature is found to conform to arrhenius law in two different regions.
     该体系电导率与温度的关系分区符合Arrhenius定律
短句来源
     It is found experimentally that at T=423K, 455K and 471K, the ratios of the reaction constants of CH_4 and CH_2D_2 are respectively λ_H/λ_D=1.9, 1.65, 1.65. The constant λ is found to obey the Arrhenius law, with the activation energy determined to be E_H=17.5 kcal/mole and E_D=18.9 kcal/mole.
     并测得在T=423K,455K,471K时,CH_4与CH_2D_2光溴化反应常数比λ_H/λ_D=1.9、1.65、1.65。 实验证明反应常数λ服从Arrhenius定律,且计算出激活能分别为E_H=17.5kcal/mole和E_D=18.9kcal/mole。
短句来源
     Both total flux and partial flux of each component could be well described by the Arrhenius Law despite the existence of coupling effects.
     虽然存在多种耦合作用,酒精饮料PV过程的总渗透通量及各风味物质的渗透通量仍然可以用Arrhenius定律进行表征.
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  “arrhenius定律”译为未确定词的双语例句
     Electrical measurement results showthat LSGM1015 and LSGM1025 are oxygen ion conductorsbased on the fact that temperature dependence of the conductivity conforms to the Arrhenius equation in 673 ~1073 K,andthat they have similar activation energy(Ea≈1 eV).
     电导率测试结果表明:在673~1073 K温度区间,其电导率与温度的关系符合Arrhenius定律,说明LSGM1015和LSGM1025为氧离子导体,且离子迁移活化能Ea≈1 eV;
短句来源
     Two high Tc superconductor YBa2Cu3O7-d thin films, the zero resistance temperature of which were 82K and 71K respectively, were selected for measurement about resistance broadening.
     本文选择两块零电阻温度分别为82K和71K超导性能不同的薄膜样品,同步进行了电阻在外磁场中展宽的测量,并用Palstra所提出的Arrhenius定律研究两样品热激活能的差别。
短句来源
     The influence of stochastic particle number and time step on the results is also studied.
     当反应速率满足Arrhenius定律时,结果也是合理的。
短句来源
     The temperature dependence of conductivity satisfied the Arrhenius empirical formula in measured temperature range. In addition,it has been found that the activation energy of grain boundary was more than that of grain,the conductivity of CaTi_(0.85)Sc_(0.15)O_(3-α) was controlled by grain boundary processes below 730℃,and was controlled by grain processes above 730℃.
     在整个测量温度范围内,电导率与温度的关系满足Arrhen ius定律,晶界活化能大于晶粒活化能,样品在730℃以下电导率主要取决于晶界电导,在730℃以上电导率主要由晶粒电导所决定。
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  相似匹配句对
     Law of universal repulsion
     万有斥力定律
短句来源
     Law on Intellectuals
     知识分子定律
短句来源
     The relationship between electrical conductivity and temperature is found to conform to arrhenius law in two different regions.
     该体系电导率与温度的关系分区符合Arrhenius定律
短句来源
     The influence of stochastic particle number and time step on the results is also studied.
     当反应速率满足Arrhenius定律时,结果也是合理的。
短句来源
     Discussion on Limitations of the Arrhenius Methodology
     Arrhenius方法的局限性讨论
短句来源
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  arrhenius law
The temperature dependence of self-diffusion coefficient is calculated, and temperatures are estimated below which the Arrhenius law is no longer valid.
      
The equation derived for the desorption constant is similar to the mathematical expression of the Arrhenius law.
      
It was found that the reorientation rate obeys the Arrhenius law with an activation energy of about 1.54 eV.
      
The lifetime of formed clusters increases exponentially in accordance with the Arrhenius law; at a low temperature, channels with such clusters might be blocked to transport of particles of the mixture.
      
A transition from the éfros-Shklovski? law for the temperature dependence of hopping conductivity to the Arrhenius law with an activation energy equal to 1.0-1.2 meV is observed upon a decrease in temperature.
      
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(1)从淡水魚青魚腸胃道中提取出魚蛋白酶,酶制剂活力以酪蛋白作底物約为結晶胰蛋白酶的1/3。酶的前身有酶原存在,激活最适pH为8。(2)酶作用的pH偏于碱,水解酪蛋白和B-精-NH_2的最适pH都为9,酶和酶原对酸都不稳定,当pH低于4吋,酶活性和酶原激活的能力迅速丧失。(3)此酶对热很稳定,反应温度55度时,反应速度仍符合Arrhenius定律。測得水解酪蛋白和B-精-NH_2的活化能分别为14.6千卡/克分子及8.0千卡/克分子,較之胰蛋白酶水解此同一底物所需的活化能为低,尤以后者更显著,約相当于1/2值。(4)对小底物的水解以B-精-NH_2活力最高,K_m=3.3×10~(-3)M(40度pH8.7),为胰蛋白酶水解此同一底物所得K_m值的二分之一,对胰凝乳蛋白酶的底物B-酪-NH_2不作用,而对Cbz-甘-苯丙及白-NH_2却有較明显的活力。(5)半胱氨酸(10~(-3)M)和PCMB(10~(-4)M)对酶活力无影响,但能被DFP和胰蛋白酶抑制剂所抑制。DFP的抑剂随其与酶保温时間的增长而增大。lO~(-4)MDFP与酶液保溫10小时后能抑制酶活力达60%。胰蛋白酶抑制剂对此酶抑制的作...

(1)从淡水魚青魚腸胃道中提取出魚蛋白酶,酶制剂活力以酪蛋白作底物約为結晶胰蛋白酶的1/3。酶的前身有酶原存在,激活最适pH为8。(2)酶作用的pH偏于碱,水解酪蛋白和B-精-NH_2的最适pH都为9,酶和酶原对酸都不稳定,当pH低于4吋,酶活性和酶原激活的能力迅速丧失。(3)此酶对热很稳定,反应温度55度时,反应速度仍符合Arrhenius定律。測得水解酪蛋白和B-精-NH_2的活化能分别为14.6千卡/克分子及8.0千卡/克分子,較之胰蛋白酶水解此同一底物所需的活化能为低,尤以后者更显著,約相当于1/2值。(4)对小底物的水解以B-精-NH_2活力最高,K_m=3.3×10~(-3)M(40度pH8.7),为胰蛋白酶水解此同一底物所得K_m值的二分之一,对胰凝乳蛋白酶的底物B-酪-NH_2不作用,而对Cbz-甘-苯丙及白-NH_2却有較明显的活力。(5)半胱氨酸(10~(-3)M)和PCMB(10~(-4)M)对酶活力无影响,但能被DFP和胰蛋白酶抑制剂所抑制。DFP的抑剂随其与酶保温时間的增长而增大。lO~(-4)MDFP与酶液保溫10小时后能抑制酶活力达60%。胰蛋白酶抑制剂对此酶抑制的作用与抑制胰凝乳蛋白酶相类似。(6)从青魚腸胃道中找到有类胰蛋白酶抑制剂的存在。对魚本身蛋白酶有显著的抑制作用,对胰蛋白酶亦能抑制,但抑制能力較弱。

As one of the most important octane improvement processes,catalytic refor- ming may be one of major means for satisfying the octane demands arising from lead restrictions.Better understanding and optimization of the catalytic reforming process have now been realized as a result of the development of a kinetic complex reaction network model of the reforming process in our laboratory. The complex reaction network and kinetic model are presented as follows:where,composition vector K:rate constant matrix t:reaction...

As one of the most important octane improvement processes,catalytic refor- ming may be one of major means for satisfying the octane demands arising from lead restrictions.Better understanding and optimization of the catalytic reforming process have now been realized as a result of the development of a kinetic complex reaction network model of the reforming process in our laboratory. The complex reaction network and kinetic model are presented as follows:where,composition vector K:rate constant matrix t:reaction contact time in whih P,N and A stand for paraffins.naphthenes and aromatics.The subscri- pts denote carbon number. The present network illustrates the principal reactions in the reforming process, such as dehydrogenation and cyclization of paraffins,aromatization of naphthenes and hydrocracking of paraffins and alkyl group of aromatics. The proposed model consists of 22 lumping components and 26 reaction rate constants.Arrheniusian plots of these reaction rate constants were satisfactory. Prediction of composition of reforming products by this model was shown in good agreement with the experimental data.

催化重整是生产芳烃和高辛烷值汽油的主要手段之一。本文用集算的方法建立了壬烷重整的包括14个集算组份的反应网络,确定了其中26个反应步骤的速度常数。各反应步骤的速度常数与反应温度的关系完全符合 Arrhenius 定律,网络动力学模型计算的各组份的分布与实验结果相符。

In the photobromination of CH_4/CH_2D_2, it is recognized that Br_2 is first excited to Br_2~* and then dissociate into two Br atoms. Therefore it is necessary to take into consideration the possibility of Br_2~* taking part in the reaction. According to such a mechanism, the relation of reaction constant λ and laser intensity I is shown to be λ=λ_1I~(1/2)+λ_2I. Experiment shown that λ_2I is the dominant term. It is found experimentally that at T=423K, 455K and 471K, the ratios of the reaction constants of CH_4...

In the photobromination of CH_4/CH_2D_2, it is recognized that Br_2 is first excited to Br_2~* and then dissociate into two Br atoms. Therefore it is necessary to take into consideration the possibility of Br_2~* taking part in the reaction. According to such a mechanism, the relation of reaction constant λ and laser intensity I is shown to be λ=λ_1I~(1/2)+λ_2I. Experiment shown that λ_2I is the dominant term. It is found experimentally that at T=423K, 455K and 471K, the ratios of the reaction constants of CH_4 and CH_2D_2 are respectively λ_H/λ_D=1.9, 1.65, 1.65. The constant λ is found to obey the Arrhenius law, with the activation energy determined to be E_H=17.5 kcal/mole and E_D=18.9 kcal/mole.

本文认为Ar~+激光(488nm)引起的CH_4/CH_2D_2光溴化反应应该是Br_2先被激发到Br_2~*,然后再离解为两个原子,因此,还要考虑Br_2~*也会参加反应。根据这个机理,反应常数λ与激光光强I的关系为λ=λ_1I~(1/2)+λ_2I。通过实验证明λ_2I为重要项。并测得在T=423K,455K,471K时,CH_4与CH_2D_2光溴化反应常数比λ_H/λ_D=1.9、1.65、1.65。实验证明反应常数λ服从Arrhenius定律,且计算出激活能分别为E_H=17.5kcal/mole和E_D=18.9kcal/mole。

 
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