查询词典 kinetics

Objective To study the degradation kinetics of bulleyaconitine A. Methods Classical constant temperature method and HPLC were used.

摘要目的研究草乌甲素的降解动力学，考察影响草乌甲素降解的因素。

An improved method determining the type of the generator kinetics by using the curve of chlorine absorption rate is presented.

给出了利用氯气吸收速率变化曲线判定发生器动力学过程类型的方法。

The results of clinical assessment showed that levosimendan was safe and effective which could improve the prognosis of the patients and kept normal blood kinetics. By improving the reported synthetic route, levosimendan was synthesized from acetanilide via eight steps of reaction.

本论文探索了左西孟旦的合成路线，对文献报道的合成工艺进行了合理有效的改进，以乙酰苯胺为原料，最终经Friedel-Crafts反应，羰基α-位溴代，丙二酸二乙酯缩合，水解，脱羧，环合，拆分及重氮化加成等八步反应合成了左西孟旦。

In this paper, the kinetics of minisuspension polymerization of vinyl acetate was investigated.

本文主要对微悬浮法合成聚醋酸乙烯酯的动力学进行了研究。

The kinetics of citric acid fermentation process was studied.

研究了柠檬酸发酵过程的动力学。

The results show that various components of qN can be resloved by pulse technology in dark relaxation kinetics after the actinic ...

通过改变诱导光强、脉冲频率和脉冲强度，寻找适当的条件以区分光诱导期间的qP、qN和随后黑暗期间qN的快、中、慢三个组分。

Under 300 W medium mercury lamp, the quantum yields of petroleum hydrocarbons at 365 nm were determined by potassium ferri-oxalate actinometer. And their reaction kinetics constants were measured too.

并采用高光密度法，以K3Fe(C2O4)3做光露计，300W中压汞灯为光源，在365nm波长处测定石油烃类的反应速率常数和量子产率。

In the paper, adsorption equilibrium and kinetics of water in the solvents of benzene series and low-carbon alcohol on 3A zeolite molecular sieve were studied including effective pore size of zeolite, adsorbate concentration and temperature. The mechanism and characteristics of water adsorption in such systems, the effect of solvents to adsorption equilibrium and kinetics of water were discussed, and diffusivities of water under different conditions were obtained.

论文研究了苯系列物质—水体系、低碳醇—水体系中水在3A沸石上的吸附动力学，考察了沸石晶格窗口大小、吸附质浓度、温度等因素对吸附动力学的影响规律；分析了吸附机理以及两类体系的特点；通过数学模型对实验数据的拟合，求取了各种条件下的动力学参数；研究了两类体系的溶剂对吸附平衡和动力学的影响。

The analysis of transesterification kinetics shows that the transesterification obeys a second-order reaction kinetics model when the transform ratio is under 95%.

动力学分析表明：酯交换反应在转化率为95%之前，符合二级反应动力学模型。

The results show that the reactive characters of macro-kinetics are different from that of intrinsic kinetics under the same experimental conditions. The isobutene dimeric reaction follows 1.5 order reaction because of the effect of inner diffusion, and isooctane dimeric reaction follows zero order reaction.

结果表明，在相同的实验条件下，反应的宏观动力学行为与本征动力学行为有较大的不同，异丁烯的反应级数受内扩散影响由2级变为1.5级，异辛烯的反应级数则为0级。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。