查询词典 kinetics

The contant B rate and the average velocity V of nonexchangeable potassium release can be used for the evaluation of the capability of soil supporting potassium to plant.Key words soil,nonexchangeable potassium release,kinetics of potassium release,Shaanxi Province

本试验通过H饱和树脂模拟根系吸钾过程，探索黄土性土壤非交换钾的释放动力学特征，并用暗棕壤和风砂土作参照，旨在为了解黄土性土壤非交换性钾释放动力学特征和评价供钾特性提供科学依据。

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 microstructure evolution and composition distribution of the 7A55 cast and homogenized alloy were studied by optical microscopy, scanning electron microcopy, energy dispersive spectrometer, transmission electron microscopy and X-ray diffractometry. The homogenizing and overburnt temperatures of the alloy were determined. Meanwhile, the diffusion kinetics of the alloy elements during homogenizing treatment was investigated and the homogenizing kinetic equation was deduced according to Fick's First Law of diffusion. The diffusion of alloy elements, precipitation of Al3Zr particles and the conglomeration and globe of the insoluble phases were explained by the equation during homogenization.

摘 要：采用光学显微镜、扫描电镜、能谱分析、透射电镜和X射线衍射分析等研究了7A55合金铸态与均匀化显微组织演化与成分分布，确定了该合金的均匀化处理温度与过烧温度，研究了铸锭均匀化动力学过程，利用菲克定理导出了均匀化动力学方程，利用动力学方程对均匀化过程中合金元素的扩散、 Al3Zr的析出、难熔相的聚集和球化现象进行了解释。

The non-isothermal crystallization kinetics of polyoxymethyleneand poly- oxymethylene/co-polyamideat different cooling rates were investigated uisng differential scanning calorimetry.

采用差示扫描量热法研究了聚甲醛和聚甲醛/盐聚酰胺二元共混体系在不同降温速率下的非等温结晶行为，并用 Jeziorny 法、Ozawa 法和莫志深法计算了聚甲醛及其共混物的非等温结晶动力学参数。

Ion chromatography using pellicular ion exchange resins and dilute solution can be devoted to the study of ion exchange thermodynamics and kinetics.

离子色谱法采用薄层离子交换树脂和稀溶液体系，可以作为研究离子交换热力学和动力学的理想手段。

METHODS: the supernatants of cultured spleen's lymphocytes induced by ConA were injected into mice peritoneally,kinetics of plasma corticotropin releasing hormone,adrenocorticotropic hormone and corticosterone in mice were tested at different time (0.5,1,2,4,6 h),or tissue of hypothalamus pituitarium or adrenal was stimulated with supernatants induced by ConA,and the secretion of CRH, ACTH and CORT were observed.

采用ConA诱导淋巴细胞培养上清液给小鼠腹腔注射，测定不同时间(0.5，1，2，4，6 h)的小鼠血浆中CRH，ACTH，皮质酮产生的动力学，同时在体外用ConA诱导上清液分别与下丘脑，垂体，肾上腺组织共同培养后观察CRH，ACTH，CORT分泌情况。

Si alloy thixotropic deformation behavior has been established. Phenomenologically, An internal variable framework effectively combines the microstructure level structural kinetics with the maroscopic flow behavior.

采用自制的半固态合金固液两相区力学性能测试装置进行半固态Al-7.0％Si合金的触变力学性能的研究，建立了半固态Al-7.0％Si合金触变变形行为的幂律模型。

The plaque morphology, growth kinetics of the mutant viruses were phenotypically indistinguishable from that of the parental virus.

表明PRRSVORF间重叠碱基的安排方式对病毒的感染性是非必需的，获得的两株突变病毒为进一步研制PRRSV基因标识疫苗、研究PRRSV各编码蛋白功能奠定了基础。

Kinetics characteristics of α- pinene isomerization catalyzed by activated carbon supported phosphotungstic acid was studied .

研究了活性炭固载磷钨酸催化α－蒎烯的异构化反应的动力学特征，研究表明，以环己烷作溶剂，α－蒎烯在活性炭固载磷钨酸上的异构化服从准一级动力学模型，其反应的表观活化能为100。

Besides, kinetics of gas-phase photocatalytic reaction is also studied.

实验中还探讨了气相光催化反应的动力学过程。

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。