动力学

A new technology to produce phosphoric acid from low-grade phosphorite and its advantages are described, also the kinetics of decomposition and crystallization are briefly presented.

摘 要］研究利用低品位磷矿生产磷酸的新流程，分析这一流程的若干特点，探讨流程中的酸解动力学和结晶动力学的一些基础问题。

HPLC method of determination of CCU has been developed for the kinetic study. The kinetics of photodecomposition of CCU in various carrier gases have been studied. The photoreaction of CCU in nitrogen and air is of the first order, while in oxygen is closer to that of the second order. The rate constants in nitrogen, air and oxygen are 0.00703/h, 0.0109/hand 0.00445 , and the half-livies are 98. 6, 63. 6 and 62. 7hour respectively.

采用以甲醇一水为流动相的反相HPLC作为分析手段，对灭幼脲在不同载气中的光解动力学作了研究，结果表明，灭幼脲在氮气和空气中的光解反应符合一级动力学形式，而在氧气中的光解则更接近于二级反应形式；在三种气氛中的反应速度常数分别为0.00703h〓，0.00109h〓和0.00445h〓〓，半衰期相应为98.6、63.6及62.7h。

The molecular photodissociation dynamics is a very important part of molecular reaction dynamics.

分子光解动力学是分子反应动力学的一个极其重要的内容。

The photodissociation dynamic of isotropic molecules are studied for several decades, however, the photodissociation dynamics research of anisotropic molecules is just beginning.

具有空间各向同性分布性质分子的光解动力学已经研究了几十年，但对取向分子光解动力学的研究才刚刚起步。

The paper described three different types mechanism of femtosecond laser surgery briefly,and then introduced achievements of the femtosecond laser surgery in cell biology,such as cytoskeletal dynamics,ablation of organelles in living cells,engineering of the cell membrane,photodynamics,biological experiments in vivo and the corresponding applications.

简述了3种不同类型的飞秒激光在细胞手术过程中的作用机理，介绍了飞秒激光手术在细胞生物学领域中的一些研究成果，如细胞骨架动力学、活细胞内细胞器手术、细胞膜工程、光动力学、生物活体实验及相应的应用。标签飞秒激光细胞手术机理细胞生物学 femtosecond laser cell surgery mechanism cell biology

The difficulty of the existing piezoelectricity theory to solvepiezoelectric dynamics problem is pointed out.

以分析横场伸缩振动压电片的动力学为例，指出已有建立在压电本构方程基础上的求解压电体动力学理论的困难。

In the paper, the conversion and kinetics of coal tar pitch are studied and conversion kinetics parameters of the mesophase are measured.

本文研究了煤焦油沥青中间相转化及动力学，测定了中间相转化动力学参数。

MATERIALS AND METHODS: One hundred patients with lower urinary tract symptoms were instructed to keep a 3-day voiding diary. Patients were instructed to record the time and volume of their water intake, voided urine volume, and number and time of sensation of urgency and episodes of urge incontinence. Patients were diagnosed according to their clinical findings as having a normal bladder, hypersensitive bladder, overactive bladder, polydipsia polyuria, or nocturnal polyuria. Thirty-six patients underwent a urodynamic study to further assess their lower urinary tract dysfunction, for which urodynamic results were classified as a normal bladder, detrusor overactivity, or bladder hypersensitivity.

材料与方法：一百位具有下尿路症状的病人经由指示记录三日排尿日志，每一位病人均记录其喝水及排尿的时问和容量，以及感觉急尿或发生尿急失禁的次数，根据其临床发现诊断为正常膀胱、超敏感性膀胱、膀胱过动症、多喝水性多尿症，或是夜间多尿症，其中三十六位病人接受了尿动力学检查以进一步评估其下尿路功能异常，依其尿动力学检查分类为正常膀胱，逼尿肌活性过强，或是膀胱超敏感性。

A new catalytic kinetic method with second derivative oscillopolarography detection for determining trace amounts of NO〓〓 has been developed. The method is based on the catalytic oxidation of Amarath by potassium bromide in the diluted H〓SO〓. The detection limit of the method is 2.8×10〓g/ml, the linear range of the determination 〓is 0.6～14ng/ml for NO〓.

首次研究了鸡冠红的示波极谱行为，并发现NO〓〓在稀硫酸介质中对KBrO〓氧化鸡冠红褪色反应具有强的催化作用，本文采用两阶导数示波极谱法作监测技术，测定了该催化体系的表观反应级数及动力学方程，建立了催化动力学伏安法测定痕量NO〓〓的新方法。

Mercury can catalyze discoloration reaction of safranin T with potassium iodide.

近年来 ，在汞的动力学分析中，催化动力学分析方法的研究报道很多。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。