动力学条件

Lactonization of 32 swiftly took place under basic condition, and the first four-ring intermediate 53 was gained.

以动力学烯醇化-氧化的方法，在18的〓位引入了〓羟基，解决了构成1，4-内酯环的相对立体化学问题。32在碱性条件下，顺利完成了1，4-内酯环的构筑，首次获得了四环中间体53。

The dynamics simulation of modified enzyme was carried out in the presence of solvent. The realtionship between structure and activity was analyzed. It was considered the entropy effect which was brought by the side chain of lauric acid patched to the enzme had the main role of increasing the stability of modified enzyme.

并在溶剂存在的条件下对修饰酶进行了分子动力学模拟和构象分析，讨论了其结构与性能的关系，认为月桂酸修饰链无序性带来的效应是提高修饰酶稳定性的主要原因。

Through a self-designed lightproof intermittent reactor, homogenous oxidation kinetics of sodium sulfite was studied under uncatalyzed, catalyzed and inhibited conditions, respectively.

本文在均相条件下，通过自行设计的避光间歇式反应器，对亚硫酸钠非催化氧化、催化氧化和抑制氧化的本征反应动力学进行了实验研究。

The effects of low irradiance on chlorophyll a fluorescence kinetics were studied in two eggplant Solanum melongena L.

根据快速叶绿素荧光诱导动力学原理，选用耐弱光茄子品种99-8和不耐弱光茄子品种黑又亮作试材，进行遮光（光照强度相当于自然光照的40%）15 d、未遮光15 d、遮光30 d和未遮光30 d 4个处理，用JIP-测定法对不同耐弱光性品种在不同光照条件下的叶绿素荧光特性进行研究。

Kinetic analysis shows that biodegradation of organics by psychrotrophs at low and mesothermal temperature as well as mesophilic bacteria at mesothermal temperature are in accordance with the model of first-order reaction.

对长期在4℃条件下运行的生活污水处理系统中活性污泥的菌群组成进行分析鉴定，探讨了菌群降解低温污水中有机污染物的动力学过程。

The oxide formed on NbSi2 at 1023 K consists of Nb2O5 and minor SiO2. The Nb2O5 is lose and nonprotective, which spalls from the sample during oxidation. The oxidation kinetics of all the NbSi2 samples at 1023 K follows a linear law. The oxidation rate is intrinsically determined by the reaction rate between the matrix and the oxygen in air, which in turn is determined by the exposure area of the sample.

无论是单晶还是多晶样品，氧化产物均为 Nb2O5和SiO2，生成的Nb2O5易剥落，样品的氧化动力学曲线均呈直线规律，证明NbSi2的氧化过程是一种本征无保护条件下氧元素与基体元素直接反应的过程。

The inversion of large perturbational parameters in elasticmedium is one of important branch of the medium parameters inversion because ofits extensive engineering application background and the breaking down of thelimited condition in traditional inversion method.

介质参数反演问题是弹性动力学反问题三大研究方面之一，弹性介质中的大扰动参数反演问题作为介质参数反演的一个重要分支，因其广泛的工程应用背景以及对传统反演方法限制条件的突破而具有重要的意义。

The correlation of such ultrafast process with the system temperature and property of solvents is analyzed, which is useful for the further study about the ultrafast process of DNA, protein and other biological molecules, such as intra- and intermolecular electron, proton and energy transfer and photoisomerization.

本文的主要内容是利用飞秒时间分辨荧光亏蚀光谱探测技术对液相体系中的染料大分子在不同条件下的激发态振动弛豫、取向弛豫和分子间碰撞传能等超快动力学过程进行了研究，分析得到了这些超快过程与体系温度和溶剂性质之间的关系，同时为进一步研究DNA、蛋白质等生物分子体系的电子转移、质子转移、能量传递以及光致异构化等反应过程打下了基础。

Femtosecond time-resolved studies using fluorescence depletion spectroscopy were performed on the vibrational relaxation; orientational relaxation and the intermolecular energy transfer of dye molecules in solutions under different conditions. The correlation of such ultrafast process with the system temperature and property of solvents is analyzed, which is useful for the further study about the ultrafast process of DNA, protein and other biological molecules, such as intra- and intermolecular electron, proton and energy transfer and photoisomerization.

本文的主要内容是利用飞秒时间分辨荧光亏蚀光谱探测技术对液相体系中的染料大分子在不同条件下的激发态振动弛豫、取向弛豫和分子间碰撞传能等超快动力学过程进行了研究，分析得到了这些超快过程与体系温度和溶剂性质之间的关系，同时为进一步研究DNA、蛋白质等生物分子体系的电子转移、质子转移、能量传递以及光致异构化等反应过程打下了基础。

The fresh chicken feces were obtained from different age 18 healthy chicken, and were not detectedchlortetracycline. The mixture standard solution of CTC and OTC was added in fresh chicken feces at the concentration of 0.5, 1.0 and 4.0ug/ml respectively. The chicken feces were divided to two groups,one were put in the incubator under photophobic condition; another were under the natural illumination.Samples were collected after 0, 0.5, 1, 2, 3, 5, 7, 9, 12 and 15 days, The concentration of chicken feceswas determined by HPLC. According to the theory of degradation kinetics, we fitted the changed trendof concentrations in chicken feces under different time and studied the degradation characteristics ofchlortetracycline in chicken feces.

选取不同日龄健康鸡18只，实验期新鲜鸡粪，，经检测不含四环素类药物，然后加入金霉素标准液，使得各样品中制得的相应药品的浓度为0.5ug／mL、1.0ug／mL、4.0ug／mL，分为两个实验组，第1组放入培养箱中避光黑暗条件下；第2组置于室外自然光下，定时取样，取样时间为0、0.5、1、2、3、5、7、9、12和15d，鸡粪中药物的浓度用本实验建立的高效液相色谱法测定，根据药物降解动力学原理，对鸡粪中药物的浓度随时间的变化趋势进行曲线拟合，研究金霉素在环境鸡粪中的降解动态规律。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。