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kinetic reaction
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  反应动力学
     Study of Kinetic Reaction of Reduction of Selenate to Selenite
     硒酸离子还原成亚硒酸的反应动力学研究
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     Based on the consideration of the contribution of pH value, initial concentration of fluorobenzene, ozone flux and reaction temperature to the ozonation process, a simplified mechanistic model for fluorobenzene degradation by ozone was derived, and the kinetic reaction equation was fitted as an exponential function: C = C0exp(-0.324 exp(-7437/RT) QO30.41C0-0.372[OH-]0.0942t).
     氟苯在臭氧氧化下的降解符合表观一级动力学,采用幂指数方程描述反应动力学,得到方程C=C0exp(-0.324exp(-7437/RT) QO30.41C0-0.372[OH-]0.0942t)。
短句来源
     Fractal Kinetic Reaction of Enzyme
     酶的分形反应动力学
短句来源
     Study on Lumped Kinetic Reaction Network of Heavy Oil Contact Cracking Process
     重油接触裂解制乙烯集总反应动力学模型研究
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     The increases of aeration volume,pH and dosage of H2O2 are favorable to the photocatalytic degradation of active bright red X-3B.It is observed that the photocatalytic degradation of active bright red X-3B is conformed to negative first order reaction kinetics,and the apparent kinetic reaction rate constant and the initial active bright red X-3B concentration could be described by nearly negative first order kinetics.
     催化剂最佳投加质量浓度为45g/L,增大曝气量和pH,适当投加助剂H2O2有利于光催化降解效率的提高; 活性艳红X-3B的光催化降解过程符合负一级反应动力学规律,反应速率常数与活性艳红X-3B模拟废水初始浓度之间具有近似负一级的动力学关系。
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  动力学反应
     By studying the Mo(Ⅵ) and W( Ⅵ ) catalyzed H2O2-iodide kinetic reaction, conditions for the simultaneous determination of molybdenum and tungsten were established as; [H2O2] = 9. 7×l0-3mol/L, [I-] = l. 0×10-2mol/L, pH 3. 0, and 25C.
     研究了钼(Ⅵ)和钨(Ⅵ)催化的H_2O_2-I~-动力学反应,确定了同时测定条件:〔H_2O_2〕=9.7×10~(-3)mol/L,〔I~-〕=1.0×10~(-2)mol/L,PH3.0,25℃;
短句来源
     The catalytic effect of Fe (Ⅱ) on H2O2 oxidizing chromotropic acid kinetic reaction system was studied with the stopped flow FIA technique, and a procedure for rapid determination of trace Fe (Ⅱ) was proposed. The conditions for determination were established as: H2O2 1. 0 %,Chromotropic acid 7. 5 ×10-3 mol/L, pH1. 8, reaction temperature 28℃, and the absorbance was measured at 435um.
     用停流光度法研究了Fe(2+)对H_2O_2氧化变色酸动力学反应体系的催化作用,建立了快速测定铁的停流动力学光度法,测定条件为:H2O21.0%,变色酸7.5×10-3mol/L,PH1.8,反应温度28℃,在435um处测定吸光度。
短句来源
     The reaction is betweenSi vapor and N_2 on the surfaces of Si_3N_4 microcrystals which act as seeds in the combustionreaction. The reaction can be divided into two stages:(1)Kinetic reaction stage:Si vapor reactswith N_2 directly(without diffusion)on the surfaces of Si_3N_4,the reaction rate is very high;
     燃烧反应中 Si 以蒸汽形式与N_2在 Si_3N_4晶种表面反应,反应分为两个主要阶段:(1)动力学反应阶段:Si 蒸汽不需经过扩散直接与 N_2进行反应,反应速度快;
短句来源
     In the aqueous solution of which the initial Pb~(2+) or Zn~(2+) concentration is 1mmol/L, an adsorption equilibriums comes into being for only 15min, and the adsorbing process is characterized with 1st-grade kinetic reaction.
     在pH=5 5时,啤酒酵母菌对Zn2+的吸附量最大,为13.89mg/g·在初始铅、锌离子浓度均为1mmol/L的水溶液中,吸附时间为15min即达到吸附平衡,该吸附过程具有一级动力学反应特征·
短句来源
     The principle of oxidation strip of acid dyes in PB/TAED bleaching system was studied with kinetic reaction principle.
     用动力学反应原理探讨了酸性染料在PB/TAED漂白体系中氧化脱色的原理.
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  “kinetic reaction”译为未确定词的双语例句
     Study on Thermodynamics and Kinetic Reaction Mechanism of (Al_3Zr+Al_2O_3)/Al Composites Synthesized by the Direct Melt Reaction in the System Al-Zr(CO_3)_2
     Al-Zr(CO_3)_2体系熔体反应合成(Al_3Zr+Al_2O_3)/Al复合材料的热力学与动力学机制
短句来源
     Kinetic research indicates that the decoloration reaction of argazol blue BF-BR accords to one order kinetic reaction,and the kinetic equation can be described as follows:-lnCR=0.36733t-lnC0(R=0.9827),with reaction rate constant k=0.36733 min-1 and half life t1/2=1.887 min.
     动力学研究表明:雅格素蓝BF-BR染料废水的脱色反应为一级反应,其反应表观动力学方程为:-lnCR=0.36733t-lnC0(R=0.9827),反应速率常数为k=0.36733 min-1,反应半衰期为t1/2=1.887 min。
短句来源
     The model was proved to be well suitable for the phenol degradation in the presence of superfluous H2O2. The kinetic reaction equation was fitted as follows, 55322022002.1410[HO]d[R]5.3310[R]2.0410[HO][R][R]d[R]rt---=-=+? .
     苯酚降解的动力学方程为: 5-55322022002.1410[HO]d[R]5.3310[R]2.0410[HO][R][R]d[R]rt---=-=+?
短句来源
     The kinetic reaction of FDP powder wer zero order reaction at 5 0°C and 6 0°C and primary reaction at70°C,respectively.
     试验结果还表明本品的热分解反应在 5 0°C和 6 0°C时呈零级反应 ,在 70°C时呈一级反应。
短句来源
     The liner range for the determination of platinum is 0 —2.2 μg·L- -1.The detection limit is 0.06 μg·L- -1.Several pa rameter of the kinetic reaction were determined.
     铂浓度在 0~ 2 .2 μg· L- 1范围内与ΔA呈线性关系 ,检测限为 0 .0 6 μg· L- 1。
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  kinetic reaction
The batch sorption kinetics have been tested for a first-order, pseudo-first order and pseudo-second order kinetic reaction models.
      
From the experimental results a kinetic reaction model is proposed to provide a quantitative description of the influence of solid carbon.
      
This study applied the generalized kinetic reaction rate equation to isothermal transformation kinetic data of a high-carbon low-alloy steel and a plain-carbon steel.
      
For the determination of the optimal catalyst blend, a mathematical model for a general first-order kinetic reaction scheme is developed.
      
The variation in the growth rate with O2/SiH4 ratio has been explained in terms of relative transport and kinetic reaction rates.
      
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The following conclusions can be drawn from the present analysis:(1)It is practical to think that the migration of the moths can be solved into 3 succes-sive components,namely,the“ascending movement”,the“transmigration”and the“descend-ing movement”.The analysis of the last one and its association with certain meteoro-physicalconditions helps us to find out the intrinsic and extrinsic causes affecting such movement aswell as to appreciate their relative values.(2)Through an actual analysis of 163 cases of“sudden...

The following conclusions can be drawn from the present analysis:(1)It is practical to think that the migration of the moths can be solved into 3 succes-sive components,namely,the“ascending movement”,the“transmigration”and the“descend-ing movement”.The analysis of the last one and its association with certain meteoro-physicalconditions helps us to find out the intrinsic and extrinsic causes affecting such movement aswell as to appreciate their relative values.(2)Through an actual analysis of 163 cases of“sudden high catch”that happened inthe 985“favorable air current for moth-carrying”conditions,it is realized that in theprocess of decending movement the intrinsic habitual response should not be neglected.It isquite possible that such movement is the“kinetic reaction”under certain external environmentalconditions.The most important factors that determine whether moths would decend in a certaindistrict or not,might be the“circadian rhythm”and the meteoro-physical conditions.(3)It is found that the association of“sudden high catch”and certain weather condi-tions is close and significant.Moreover,under different weather conditions,the conditionalprobabilities are all different.(4)Among the weather conditions,“cyclonic center”,“cold front area”and“thunder-storm”are all favorable for the decending movement of migrating moths.Raining weatherranks next to the above mentioned ones;while under the so-called“general weather conditions”,the frequency of occurrence of“sudden high catch”is relatively low(see Table 4).(5)A possible mechanism of the decending behavior has been discussed.It is pointed outthat“cyclonic pocket”,“air disturbance”and“decending air movement”may constitue thephysical causes of such reaction.Rainfall in a certain degree may also favor the descent ofmoths,while the ascending air movement may be unfavorable for such movement.

本文对气流场与粘虫迁飞关系作了分析,表明在900—950mb 层(即400—900米高度)气流场中有适于携虫的气流存在。在各类气象条件下,粘虫蛾发生突增的条件概率,其结果(在气流有利于携虫的前提下):无条件概率值为0.1665;各条件概率值分别为:在雷暴状况下发生突增的条件概率为 0.4000;在降雨状况下发生突增的条件概率为 0.2812;在冷锋区发生突增的条件概率为 0.3720;在暖锋区发生突增的条件概率为 0.2222;在气旋中心区发生突增的条件概率为 0.4000;在“一般性天气”发生突增的条件概率为 0.1166;因此,初步结论是:气旋中心区、冷锋区、与雷暴均显著地有利于扩迁粘虫蛾的降落,而降雨、暖锋区、虽然也有或多或少的有利倾向,但是不够显著。由于在“一般性天气”条件下亦有相对多的蛾量突增的现象发生,这表明很可能降落过程与运转过程不同,在一定程度上与粘虫本身的自主性降落有关。估计这很可能与粘虫蛾的“生物钟”反应有所联系。在本文中亦对各种气象物理事件对于扩迁粘虫蛾降落过程的可能作用机制作了讨论。

The beryllon Ⅱ—vanadium—ascorbic acid system for determination of trace amounts of V(V) is proposed and its reaction mechanism is studied. The excess ascorbic acid is used for the reductant of V(V) served as a catalyst. Beryllon Ⅲ is the indicator of the reaction. By changing pH from 6.8 to 4 and adding EDTA, the kinetic reaction can be wholly stopped. The sensitivity can be varied by centrolling the time of reaction. The calibration curve is valid for therange of 0.4—200 ng/ml for vanadium. The...

The beryllon Ⅱ—vanadium—ascorbic acid system for determination of trace amounts of V(V) is proposed and its reaction mechanism is studied. The excess ascorbic acid is used for the reductant of V(V) served as a catalyst. Beryllon Ⅲ is the indicator of the reaction. By changing pH from 6.8 to 4 and adding EDTA, the kinetic reaction can be wholly stopped. The sensitivity can be varied by centrolling the time of reaction. The calibration curve is valid for therange of 0.4—200 ng/ml for vanadium. The detection limit is 0.11 ng/ml. Iron and molybdenum interfere seriously with the determination, However, they can be removed by chromatographic separation with anion-exchange resins.

本文研究了铍试剂Ⅲ-钒-抗坏血酸体系动力学法测定微量钒的最佳条件,探讨了反应机理。过量抗坏血酸为钒(Ⅴ)的还原剂,钒为催化剂,铍试剂Ⅲ为反应指示物质。并指出反应为一级动力学反应。反应在pH6.8进行,当降低到pH4后并加入EDTA可以使反应阻化。通过控制反应时间可以改变方法的灵敏度,每毫升钒的含量在0.4—200ng范围线性关系良好。钒检出限为0.11ng·ml~(-1)。铁和钼有严重干扰,采用阴离子交换树脂分离。

The immobilized glucose oxidase (GOD) by ~(60)Co-γ induced polymeri-zation of HEMA at -78℃ was studied. From. the experiment results, it was found thatthe irradation dose until 1×10~4Gy had not a significant effect on the native GODactivity. When the carrier (HEMA) concentration was 50%, entrapped amount1.0 ml GOD/10 ml phosphoric acid buffer solution, the immobilized GOD had notonly elastic, but also had high remaining activity. The native GOD was less sensitivefo pH value than the immobilized GOD, but both...

The immobilized glucose oxidase (GOD) by ~(60)Co-γ induced polymeri-zation of HEMA at -78℃ was studied. From. the experiment results, it was found thatthe irradation dose until 1×10~4Gy had not a significant effect on the native GODactivity. When the carrier (HEMA) concentration was 50%, entrapped amount1.0 ml GOD/10 ml phosphoric acid buffer solution, the immobilized GOD had notonly elastic, but also had high remaining activity. The native GOD was less sensitivefo pH value than the immobilized GOD, but both the proper pH values didn't change. The kinetic reaction results showed, Michaelis constant k'm =1.42×10~(-2)mol (nativeGOD km = 1.0×10~(-2)mol). This value indicated that diffuse velocity of substitue wasrestricted. The activation energies of the immobilized GOD were found to be 13.7 kJ/mol.

本文研究在-78℃下,~(60)Coγ辐射引发亲水性单体甲基丙烯酸β-羟乙酯(HEMA)聚合固定化葡萄糖氧化酶(GOD),实验结果证明,控制辐射总剂量不超过1×10~4Gy,对葡萄糖氧化酶的活力损伤极微。载体HEMA浓度取为50%,包埋量是1.0ml GOD/10ml缓冲溶液(pH为5.6,0.06 mol/L磷酸缓冲液),可以得到既有弹性,又具有保存活力高的葡萄糖氧化酶固定化圆珠。辐照聚合HEMA温度越低,保存活力愈高。反应底物pH试验判明,固定化葡萄糖氧化酶的最适pH值与自然葡萄糖氧化酶的最适pH值一样,不过固定化葡萄糖氧化酶比自然酶更广泛适应于pH值的变化。固定化葡萄糖氧化酶动力学实验结果:米氏常数为k'm=1.42×10~(-2)mol比自然酶km=1.0×10~(-2)mol略高,说明了反应底物的扩散速度受到了一定的限制。活化能测定是13.7kJ/mol。

 
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