速率常数

在低真空（9300Pa）过程充Ar，仍会发生脱N行为，此时脱N为二级反应，传质速率常数为0022cm/s。

The denitrogen still happened as Ar was filled in low vacuum ( 9 300 Pa ), in this case the denitrogen was second-order reaction with mass transfer rate coefficient 0.022 cm / s.

利用Townsend放电测定N2（A~3∑u~+）亚稳态分子的扩散系数和猝灭速率常数

Determination of diffusion coefficient and quenching rate coefficient of metastable n_2 molecules n_2 ( a ~ 3 ∑ _ (?) ~ + ) using Townsend discharging

测定三苯甲烷类各染料的生物降解速率常数k；

The biodegradation rate constant k of triphenylmethane dyes was evaluated comprehensively .

CO（a~3π）被小分子碰撞的猝灭速率常数

Quenching Rate Constants of CO (α ~ 3 π) by Small Molecules

氮素矿化速率常数K值差异不大。

And the nitrogen mineralization rate constant K in different soils appeared varied .

光氧化速率常数k与温度无关。

The rate constant k is independent of temperature .

pH由7.4减小至2.2，吸附速率常数提高17%。

PH decreased from 7.4 to 2.2 , adsorption rate constant increased by 17 % .

蔗糖酸催化转化反应速率常数k，一些文献认为是一个复合常数，本研究应用实验的k与C（H~+）关系数据作图时，发现k与C（H~+）为指数关系。

In some references , the rate constant k of sucrose inversion reaction was a compound constant .

它看起来是A以某个，有效速率常数k撇到。

It looks like A goes to C with C an effective rate constant k prime .

并研究了414的水解性能，结果表明，PH值的减小、温度的升高都使414的水解速率常数增大，并计算出不同PH值下的活化能和热力学常数。

The consequence showed that hydrolytic rate constent ascends with the PH value reduced and temperature raised .

采用酸碱滴定法测定了甘油三乙酯酸性水解的总速率常数k。

Total rate constants k of acidity hydrolysis of glycerol triacetate were determined by acid alkali titration .

浮选速率常数分布模型&平均K值随时间的变化规律

FLOTATION MODEL WITH A DISTRIBUTION OF RATE COEFFICIENT & The change of mean rate coefficient with time

计算公式如下：式中K为药物消除速率常数。

The formula for calculation is as follows : ( 1 ) where K is the drug elimination rate constant .

用Excel处理二级反应速率常数测定的数据

Processing Involved Data in the Experiments of Determining Rate Constants for Second-order Reaction with Excel

Ar2F~形成速率常数的测定

Measurement of Ar_2F ~ formation rate constants

酶的复性率和复性速率常数随ATP浓度的增大而提高；

Both refolding yield and refolding rate constant increased with increasing ATP concentration .

气体流量越大，木质素磺酸钠的初始浓度越低，速率常数K越大，降解效果越好。

Rate constant ( K ) of degradation increases with increasing the gas flow rate or decreasing the initial sodium lignosulfonate concentration .

流动放电&化学发光法测定O（~3P）和C2H1反应速率常数

Determination of the Rate Constant of Reaction of O ( 3 ~ p ) With G_2H_4 by Discharge Flow-chemiluminescence

研究25℃时，S（Ⅳ）在模拟雨水中的催化氧化反应速率常数随pH值变化的关系。

The relation of the aqueous S (ⅳ) catalytic oxidation rate constant to pH was studied at 25 ℃, the mathematical model was established .

结果表明，底物比降解速率常数K值并不是常数，而是随着易降解底物的降解去除逐渐变小；

The results indicated that the specific substrate utilized rate constant was not constant and became gradually small with removal of easily utilized substrate .

发现表观吸附速率常数（k）与吸附剂-吸附质相互作用能（U）存在线性关系。

There is a good linear relation between the apparent adsorption rate constant ( k ) and adsorbent-adsorbate interaction energy ( U ) .

其表观消除速率常数k为0.00117min－1，其表观半衰期为59.23min。

The apparent elimination rate constant k was 0.001 17 min - 1 . The apparent half life time t 1 / 2 was 59.23 min.

根据此模型所拟合出的反应速率常数k，平衡常数K、扩散系数D和样品表面乙二醇浓度C（？）

Reaction rate constant k , equilibrium cons-tant K , diffusion coefficient D and ethylene glycol concentration on sample surfaceC_s found according to the model are basically constants .

甲醛光催化反应速率常数k随初始浓度、催化剂投加量和光强的增加而增大，随溶液pH值的增加而减小。

The k increases with the increase of initial concentrations 、 catalyst dosage and light intensity . The k decreases with the increase of solution pH value .

测定结果能充分显示出H2O2分解的一级反应特点，并且速率常数重现性较理想。

The measuring results may fully show up the characteristics of H_2O_2decompositions . And the repeatability of the rate constant , k , is better .

高温部分结晶速率常数变慢与取向PET纤维的完全无定形部分重量减少有关。

The decrease of rate constant of crystallization in the higher temperatures is related to the less amount of the amorphous portion in the oriented PET fibers .

在EG/H2O/CTAB胶束体系中，由于阳离子表面活性剂与As·-的库仑吸引作用使得VC对3AQ的淬灭速率常数明显偏大。

For EG / H2O / CTAB system , the coulomb attraction between cation surfactant and As · - increases the quenching rate constant remarkably .

另外利用未反应收缩核模型研究了700℃&900℃温度区间CaS氧化反应的化学反应速率常数和扩散系数。

In addition , unreacted core model was applied in studying the chemical reaction rate constant and solid state diffusivity .

工业矿石可用离散的形式，以速率常数K值大小进行分组，由此建立起分速浮选模型。

According to the rank of their rate constants , k , industrial minerals are devided into groups in discrete form , thus establishing a multi & rate flotation model .

Logistic模型可以很好模拟预测盆钵试验中的氨挥发过程，通过修正氨挥发速率常数c，可较好地模拟田间氨挥发过程。

Logistic model was introduced to simulate the process of ammonia volatilization with surface film applied . Combined with modified parameter c , ammonia volatilization was fitted well by the model .