查询词典 constants

These results indicated that palmatine had one common binding site on the immobilizedβ_2-AR column,the association constant was 2.93×10~4 L/mol at pH 7.2 and 25℃,while jatrorrhizine had two bingding sites,the association constants at these two sites were 1.93×10~4 and 1.56×10~5 L/mol,respectively.And the molar ratio of weak bingding sites to strong binding sites was 93:7.Palmatine and jatrorrhizine had competed for low-affinity site in immobilizedβ_2-AR.

结果表明，盐酸巴马汀与β_2-AR只有一类结合位点，在流动相pH 7.2，温度25℃时盐酸巴马汀与β_2-AR的结合常数为2.93×10~4 L/mol；盐酸药根碱与β_2-AR有两类结合位点，在这两类结合位点上的结合常数分别为1.93×10~4和1.56x10~5L/mol，两类结合位点数的比值为93：7，且盐酸巴马汀和盐酸药根碱竞争低亲和力的结合位点。

The apparent electron transfer rate constants kapp of azobenzcne to the underlyingelectrode are found to fall off exponentially with increasing the length of alkyl chain spacers. Theelectron tunneling constant P for the electron transfer in the present systenl are estimated to be1.35±0.20 per CH2 from the logarithndc k.p. versus n (nunther of methylenes in the alkyl chainspacer) plot.

而利用电化学活性的自组装单分子膜进行这方面的研究有其独到的优点，可以在分子水平上设计和改变电子转移距离以及电活性中心所处的微环境，为考察界面电化学的一些基本问题，例如电子转移速度与距离的关系、界面结构的影响等＊－q提供了较为理想

The relationship between apparent equilibrium constants Kex, and the physical parameters of solvents can be derived.

考察了在不同溶剂中HDEHP对镨、钕、钐、镝、钬、镱等的萃取，计算得到萃取表观平衡常数Kex、热力学平衡常数KΘex和萃合物的溶解度参数δc，建立了lgKex与溶剂极性参数ET (30)、α间的经验方程。

The dissociation constants p K HL1 is in the range of 3\^50 to 4.89, p K HL2 6.17 to 8.38, K HL1 / K HL2 is below 10 5, which is consistant with the results of potentiometric titration curve. The Cu 2+ complexation constant,is 1.346 for old manured loessal soil and 2.241 for dark cultivated loessal soil.A good optimization result is given by nonelectrostatic model.

胡敏酸的解离常数和Cu2+的络合常数应用计算机程序FTTEQL32表明，优化的解离常数pKHL1在3.50-4.89之间，pKHL2在6.17-8.38之间，2种形态一元胡敏酸解离常数之比小于105，与滴定曲线只有一个突跃区相一致2种土壤胡敏酸与Cu2+络合常数logKintACu大小分别为土HA1.346，黑垆土HA 2.241，非静电模式的优化结果较好。

The first -order rate constants for the transmembrane transport of the complxes into human erythrocytes were detemined and the mechanism was studied on the basis of the interactions of these complexes with cellular membranes and liposome by ESR,fluorescence technique, mercapto measurement and gelchromatography.

测定了它们跨人红细胞膜的一级反应动力学常数。用膜蛋白巯基滴定、荧光标记、自旋标记ESR谱等方法研究了它们与膜蛋白、膜脂的相互作用；用脂质体模拟了这些配合物的细胞摄入。

The lattice constants and unit-cell volume increase monotonically with increasing of Mn concentration, it is because that Mn atom radius is larger than that of Fe.

这可归结为Mn原子半径比Fe的大，但不同晶格常数变化的大小不一样，可能与Mn原子的占位有关。

Methods: Volume analysis is used to determine the microscopic characteristic constants of Cortex Moutan.

采用容量分析法对牡丹皮进行显微特征常数值的测定。

It is obvious that, in the interface between substrate and diamond film,there exists the lattice strain effect resulting from lattice misfit because ofthe difference between the lattice constants.The lattice strain effect willcause some nonnegligible influences on the processes of diamond films′growth.

在本论文中，我们首次提出了在异质衬底上研究金刚石薄膜生长机理时必须引入晶格应变效应微扰修正的物理思想，并借鉴固体能带应变微扰理论，首次在分子轨道理论框架下建立起计算晶格应变微扰效应的理论，其中包括提出了计算单个化学键应变张量的方法和由分子轨道波函数计算应变微扰Hamilton矩阵元的方法。

Equilibrium constants for reactions of ZnTPP (parasubstituted zinc tetraphenylporphyrins) with ligands of Schiff base complex in CH2Cl2 and several other solvents have been measured by visible spectral techniques, and determined by the method of Rose-Drago.

用紫外-可见光谱和Rose-Drago数据处理方法对多种新型空间不对称含咪唑基团金属Schiff碱配合物与取代四苯基卟啉锌轴向配位反应平衡常数进行了测量。

The rate constants of the reactions of α-hydroxyl ethyl peroxyl radicalwith quercetin, ruitn, catechin and baicalin were determined through pulse radiolysisstudies to be 〓,〓,〓〓 and 〓, respectively.

用脉冲辐解的方法得到槲皮素、芦丁、儿茶素以及黄芩甙与α-羟乙基过氧自由基的反应速率常数分别为〓；3.4〓；〓和〓。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。