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activate energy
相关语句
  活化能
     The activate energy distributions of methane and C2-C5 gaseous hydrocarbon are among 47~64 kcal/mol 55~72 kcal/mol and their frequency ratios are 5.265 1013s-1 and 5.388×1018s-1 respectively.
     甲烷、C2-C5气态烃的生成活化能分别为(47~64k)calm/ol、(55~72k)calm/ol,频率因子各为5.265×1013s-1、5.388×1018s-1。
短句来源
     The activate energy of 3%WO3 -6.7%MoO3 - V2O5 /TiO2 was smaller than the others, which shown that the reaction rate of 3%WO3 -6.7%MoO3 - V2O5 /TiO2 was quickly in the same temperature.
     催化剂中3%WO3 -6.7%MoO3- V2 O5/TiO2的反应活化能最小,说明3%WO3 -6.7%MoO3 - V2O5 /TiO2反应温度的窗口范围较宽,同温度下,反应速率变化较快。
短句来源
     The sample Ml 7-7-5, ES4 mudstone, the activate energy distribution of the source rock for the hydrocarbon generation of C1-5, C13+, C6-12 and C1 are: 40-56 kcal/mol, 44-54 kcal/mol, 40-50 kcal/mol, 40-58 kcal/mol, respectively.
     M14-7-5井,ES_4泥岩,C_(1-5),C_(13)~+,C_(6-12),C_1~+生成活化能,分别为:40-56Kcal/mol,44-54Kcal/mol,40-50Kcal/mol,40-58Kcal/mol。
短句来源
     The activate energy distribution of the source rock for the hydrocarbon generation are: 38~61 Kcal/mol, 38~58Kcal/mol, 49 ~ 69Kcal/mol.
     油页岩:抚顺油页岩、茂名油页岩和乌鲁木齐油页岩三个样品,活化能分布分别为38-61Kcal/mol、38-58Kcal/mol、49-69Kcal/mol,分布范围窄。
短句来源
     The sample: Y921, kerogen from an ES3 mudstone, the activate energy distribution of the kerogen for the hydrocarbon generation of C1, C1-5, C6-I2 and C13+ are: 46-70 kcal/mol, 48-72 kcal/mol, 45-62 kcal/mol, 49-58 kcal/mol.
     永921井,ES_3,黑色泥岩干酪根,C_1,C_(1-5),C_(6-12),C_(13)~+生成活化能分别为:46-70Kcal/mol,48-72Kcal/mol,45-62Kcal/mol,49-58Kcal/mol;
短句来源
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  “activate energy”译为未确定词的双语例句
     Compared with other superalloys, the alloy 4 with the less lattice misfit possesses the bigger internal frictional stress and activate energy during creep, so has a better creep resistance and longer the rupture lifetime.
     与其它合金比较,具有较小晶格错配度的合金4蠕变期间具有最大的内摩擦应力和蠕变激活能,因此,具有较高的蠕变抗力和较长的持久寿命。
短句来源
     In higher temperature range (241℃-268℃) the apparent activate energy was calculated as 41.7 KJ/mol, the chemical reaction and ion diffusion govern jointly the rate of digestive process of diaspare bauxite.
     温度达241~268℃,E的测定值为41.7kJ/mol,此时溶出为表面化学反应和离子扩散联合控制。
短句来源
     The development of morphologies, activate energy of curing reaction and the relationship between rheological behavior and phase separation were followed by Optical Microscopy (OM), Scanning Electron Microscopy (SEM), Time-Resolved Light Scattering (TRLS) and rheolometry.
     通过比较链增长和逐步聚合体系的相分离差别,发现由于扩散流动的主体不同,即前者为环氧单体(Monomer)而后者为环氧增长链(Growing epoxy),造成二者在相分离时热塑性富集相不同特征流变时间和特征形变时间比,即动力学不对称性的差异。
短句来源
     We obtained the parameters of the index of grain growth and activate energy by regression analysis.
     利用回归分析方法确定了晶粒长大指数和激活能等参数。
短句来源
     The permeate flux, the permeate coefficient and the permeate activate energy of La~(3+) and the mass transfer coefficients were also calculated.
     (5) 当料液流量Q_w大于15×10~(-6)m~3·s~(-1),萃取反应动力学常数K_f大小调节为2.88×10~(-10)m·s~(-1)时,钕离子的总包传质系数K_w的理论预测值与实验值相吻合;
短句来源
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  相似匹配句对
     The energy of D.
     根部能量的积累随放牧强度的提高而逐渐减少。
短句来源
     The energy of the N-
     N粒子的散射态和束缚态的能量分别为
短句来源
     Activate stafcf latent energy by training
     用培训激活员工潜能
短句来源
     Activate Insurance
     激活保险——上海保险国际服务贸易发展大有作为
短句来源
     It also analyzed the activate energy of other reference literatures to make a comparison.
     通过编制的Matlab程序,计算求出催化剂的本征反应活化能和指前因子,并对比其它参考文献的活化能进行分析。
短句来源
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  activate energy
Acidification of the cytoplasm appeared to activate energy-dependent proton export primarily into the vacuoles whereas apoplastic alkalinization resulted in the pumping of protons into the apoplast.
      
The ability to specifically activate energy expenditure via this receptor is of great interest for the treatment of obesity.
      


This article is to report the results of study of the properties of the amorphous silicon film (GD-aSiHx) prepared by the glow discharge technique by measuring it electrical conductivity and photoconductivity. The experimental results indicate that the GD-aSiHx material prepared has obvious photoconductive effect. Under illumination, its electrical conductivity increases by 2 orders of magnitude. From the absorption and spectral response curve of the GD-aSiHx, the mobility gap Eg of 1.65 eV is obtained. Strong...

This article is to report the results of study of the properties of the amorphous silicon film (GD-aSiHx) prepared by the glow discharge technique by measuring it electrical conductivity and photoconductivity. The experimental results indicate that the GD-aSiHx material prepared has obvious photoconductive effect. Under illumination, its electrical conductivity increases by 2 orders of magnitude. From the absorption and spectral response curve of the GD-aSiHx, the mobility gap Eg of 1.65 eV is obtained. Strong photoresponse is found near Eg 1.65 eV, weak response is found at localized states between 1.65 eV and 0.75 eV and below 0.75 eV no response. These evidences show that the GD-aSiHx prepared is a weak n-type semiconductor. The relation of the photoconductivity versus light intensity shows that dimolecular recombining process plays a dominate role, when the photogenerated carriers move towards the Ec.High and low temperature electrical conductivity and photoconductivity are also measured. Under low temperature condition, the electrical conductivity of GD-aSiHx decreases as temperature decreases, and is a function of the reciprocal of the temperature. The curve may be devi-ded into three regions: activated,(with the activated energy about 0.66-0.73 eV) weakly activated and non-activated processes. Under high temperature condition, the electrical conductivity increases while the temperature increases. The relation of the temperature and the conductivity is non-linear. This fact indicates that electronic transfer within GD-aSiHx is brought about by the hopping transport mechanism. Photoconductivity can be demonstrated by the RD/RI. value. (RD: the dark resistivity, RL: the light resistivity).At low temperature, when T = 293-193 K, (RD/RL)L·T· (RD/RL)R·T·≈10, when T<193 K, RD/RLdecrease progressively until RD equal to RL. At high temperature, the RD/RL value decreases as the temperature increases. When temperature is higher than 373 K, RD≈RL.

本文报道了通过电导和光电导的测量,了解用硅烷辉光放电工艺制备非晶态硅薄膜(简称GD-aSiHx)的基本特性。试验结果指出,我们制备的GD-aSiHx本征薄膜具有显著的光电导效应,光照下可使其电导率增加两个数量级。从吸收系数和光谱灵敏度曲线得到GD-aSiHx的迁移率隙Eg为1.65eV。在Eg1.65eV处有强光响应,而在定域态1.65—0.75eV之间有弱光响应,低于0.75eV无光响应,足见我们制备的GD-aSiHx为弱n型半导体。发现光生载流子移向Ec时,双分子复合作用占主导地位。所进行的低温和高温电导和光电导测试结果表明,GD-aSiHx的低温电导随温度下降而降低,并与温度倒数1/T呈函数关系。电导由激活过程逐渐变为非激活过程,激活能为0.66—0.73eV。高温电导曲线表明电导随温度升高而增大,但电导与温度呈非线性关系,说明GD-aSiHx的电子传导是通过跃迁输运的。对低温下光电导用R_D/R_L表示时(R_D是暗阻,R_L是光阻),当T=293-193K,(R_D/R_L)低温:(R_D/R_L)室温≈10;T<193K,R_D≈R_L;高温下光电导R_D/R_L随温度升高而降低;当T>373K时...

本文报道了通过电导和光电导的测量,了解用硅烷辉光放电工艺制备非晶态硅薄膜(简称GD-aSiHx)的基本特性。试验结果指出,我们制备的GD-aSiHx本征薄膜具有显著的光电导效应,光照下可使其电导率增加两个数量级。从吸收系数和光谱灵敏度曲线得到GD-aSiHx的迁移率隙Eg为1.65eV。在Eg1.65eV处有强光响应,而在定域态1.65—0.75eV之间有弱光响应,低于0.75eV无光响应,足见我们制备的GD-aSiHx为弱n型半导体。发现光生载流子移向Ec时,双分子复合作用占主导地位。所进行的低温和高温电导和光电导测试结果表明,GD-aSiHx的低温电导随温度下降而降低,并与温度倒数1/T呈函数关系。电导由激活过程逐渐变为非激活过程,激活能为0.66—0.73eV。高温电导曲线表明电导随温度升高而增大,但电导与温度呈非线性关系,说明GD-aSiHx的电子传导是通过跃迁输运的。对低温下光电导用R_D/R_L表示时(R_D是暗阻,R_L是光阻),当T=293-193K,(R_D/R_L)低温:(R_D/R_L)室温≈10;T<193K,R_D≈R_L;高温下光电导R_D/R_L随温度升高而降低;当T>373K时,R_D≈R_L。

In this paper a steady state mathematical model was developed to discribe the digestive reaction of diasporic bauxite.This model is based on the main characteristics of diasporic bauxite digestion and steady state principle of kinetics. Its integral equation is as follows:where: p=dencity of diaspore,M=molecule weight of diaspore, V=liquor volume, K_E=equilibrium constant of digestion of diaspore,C_(NO),C_(AO)=initial concentrations of hydroxide and aluminate in liquor in mol/litre,r_0=morphology parameter of...

In this paper a steady state mathematical model was developed to discribe the digestive reaction of diasporic bauxite.This model is based on the main characteristics of diasporic bauxite digestion and steady state principle of kinetics. Its integral equation is as follows:where: p=dencity of diaspore,M=molecule weight of diaspore, V=liquor volume, K_E=equilibrium constant of digestion of diaspore,C_(NO),C_(AO)=initial concentrations of hydroxide and aluminate in liquor in mol/litre,r_0=morphology parameter of diaspore in bauxite,η=digestion efficiency of bauxiteThis model was used to measure the apparent activate energy E of digestive reaction of Pinguo bauxite. At 224℃-241℃ E=83.5 KJ/mol and the digestive process is controlled by chemical reaction on the diaspore surface. In higher temperature range (241℃-268℃) the apparent activate energy was calculated as 41.7 KJ/mol, the chemical reaction and ion diffusion govern jointly the rate of digestive process of diaspare bauxite.Both forward and reverse chemical reactions happened on the diaspore surface are of first order to the ions involved.

本文提出了稳态数学模型以描述一水硬铝石型铝土矿的溶出反应。该模型反映了一水硬铝石铝土矿溶出过程的主要特征,并以动力学稳态原理为基础。其积分数学式表述如下:式中 p——一水硬铝石比重; M——一水硬铝石分子量; V——溶液体积; K_E——一水硬铝石溶解平衡常数; k——速度常数; r_0——铝土矿中一水硬铝石的形貌特征参数; W_0——一水硬铝石初始重量; η——铝土矿溶出率; C_(NO)、C_(AO)——分别为氢氧根及铝酸根的初始摩尔浓度。 该模型用以测定平果铝土矿溶出表观活化能E。在224~241℃,E=83.5kJ/mol,溶出过程为表面化学反应控制。温度达241~268℃,E的测定值为41.7kJ/mol,此时溶出为表面化学反应和离子扩散联合控制。 表面正、逆向化学反应的离子反应级数均为一级。

This paper analyzed quantitatively the temperature programmed desorption curves of hydrogen on Cu/ZnO/Al_2O_3 catalyst for CO conversion at low temperature. A T_f method and curve fitting were suggested. The same model of desorption kinetic equation could be used with different kinetic paramiters for the different activated sites on the same catalyst. The effective, surface of this catalyst was shown to be non-ideal. The frequency factor γ was a exponential function with the surface coverage θ and the...

This paper analyzed quantitatively the temperature programmed desorption curves of hydrogen on Cu/ZnO/Al_2O_3 catalyst for CO conversion at low temperature. A T_f method and curve fitting were suggested. The same model of desorption kinetic equation could be used with different kinetic paramiters for the different activated sites on the same catalyst. The effective, surface of this catalyst was shown to be non-ideal. The frequency factor γ was a exponential function with the surface coverage θ and the activated energy E_d was a logarithmic function with θ. The adsorption of hydrogen on the Cu/ZnO/Al_2O_3 catalyst was dissociative by correlating the method with the experimental data.

本文以H_2在Cu/ZnO/Al_2O_2型低变催化剂上的程序升温脱附为例,解析了其TPD谱图。提出了T_f法及曲线拟合法。与其它几种方法计算结果的对比表明,该方法具有一定的可靠性及可行性。由分析计算得到的动力学参数可知,同一催化剂,不同的活泼部位具有相同形式的脱附动力学方程,而只是动力学参数不同。计算结果还表明,Cu/ZnO/Al_2O_3型低变催化剂对H_2的有效表面为非理想表面,并求出脱附过程中的频率因子γ_d、活化能E_d与表面复盖度θ的函数关系分别为指数函数和对数函数。从脱附级数推测出,H_2在Cu/ZnO/Al_2O_3型低变催化剂上的吸附为分解二位吸附。

 
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