查询词典 conformational

By employ those techniques,the energy thresholds for conformational isomerization in a given reactant-product conformer pair(e.g.tryptamine) are directly determined.

文中还简要介绍了一种新的应用于构象异构动力学研究的光谱方法，即激励辐射泵浦-注孔和激励辐射泵浦-布居转移。

In this dissertation, systematic and extensive conformational search has been performed for asparagine and aspartic acid in gas phase and solution and the properties of the stable conformers are studied using DFT based first-principles calculation. The concerned properties include geometry structure, IR spectra, conformer distributions, intramolecular interactions, ionization energies and electron affinities, protonation and deprotonation processes.

在本论文中，我们对天冬酰胺和天冬氨酸在气相和溶液中的稳定构型进行了系统而全面的寻找，并研究了其稳定构型的几何结构、红外光谱、构型分布、分子内相互作用、电离能、电子亲合能、质子化和去质子化过程等相关性质。

The emphasis of main development zones in China has been put into connotative improvement instead of conformational expansion.

知识经济的到来给我国开发区的建设既带来了前所未有的机遇，也带来了相当严峻的挑战。

It indicates that protein denaturation is a sequential process for the conformational changes.

这一形式表明蛋白质变性是一个构象渐变的过程。

Single crystal of Arginine dichloride dihydrate was studide by x-ray diffraction expriments in emphasis of main influence factors of arginine conformational variation,and was also compared with its other conformations in the existence of different anions.

以X光衍射实验对二水合氯酸的晶体结构进行了研究，重点讨论了影响精氨酸构象变化的主要因素并比较了在不同阴离子存在条件下精氨酸构象的变化情况。

Moreover, synchronous fluorescence spectroscopy and circular dichroism reveal the conformational change of HSA upon binding with RB.

同步荧光光谱和圆二色谱数据表明，RB可导致HSA的构象改变。

Using the conformational search model of hyperchem, we have searched low energy conformations of α-alanine by the parameter of the dihedral angle.

用Hyperchem软件中的构象搜寻模块，对α-丙氨酸进行系统构象搜索，寻找分子低能构象。

The probe connects rhodamine with artifical enzyme complex, and utilizes the conformational change of SOD active center during the dismutation of superoxide anion to realize the change of the fluorescent intensity of fluorophore.

过程中出现的活性部位结构变化实现荧光团的荧光强度变化，以期实现对O2-。

In the case of ethane, then , there exist three conformational isomers or conformers, which are degenerate because they are congruent , have the same energy, and are, in all respects, indistinguishable.

在乙烷的话，那么，我们有三种异构体或构构，这是堕落，因为他们是一致的，具有相同的能量，并在所有方面，没有什么区别。

On the basis of the kinetic equation of substrate reaction in the presence of urea or guanidine hydrochloride, all microscopic kinetic constants for the free enzyme and enzyme-substrate binary and ternary complexes have been determined. The results of the present studies indicate that:①In the presence of urea or guanidine hydrochloride, enzyme-substrate complexes lose their activity less rapidly than the free enzyme. Therefore, both substrates, NADPH and 7, 8-dihydrofolate, protect dihydrofolate reductase against inactivation.②The denaturation of dihydrofolate reductase by urea follows single-phase kinetics, and changes in enzyme activity and tertiary structure proceed simultaneously in the unfolding process, so it may be an"all or none"process.③The GdnHCl-induced unfolding of the dihydrofolate shows a biphasic transition, while the change in the enzyme activity is a single exponential process. The rate constant of inactivation is consistent with that of the fast conformational change. Therefore, the kinetic intermediate of protein unfolding should be a partially folded and inactive form.

我们根据在脲或盐酸胍存在下的底物反应动力学方程求得游离酶和酶底物二元、三元复合物的微观动力学常数，结果表明：①酶-底物二元、三元复合物的失活速度明显慢于游离酶，说明两个底物二氢叶酸和NADPH对酶的失活都具有一定程度的保护作用；②在脲作用下，酶的失活和构象变化均为单指数项过程，而且酶的活力丧失和三级结构变化是同时发生的，说明二氢叶酸还原酶的脲变性可能是一个"全或无"的两态过程；③在盐酸胍作用下，酶的构象变化为两相过程，而失活则是单指数项过程，酶分子构象变化的快相速度常数与失活速度常数基本一致，因此我们认为二氢叶酸还原酶的盐酸胍变性过程中存在一个没有活力、但仍具备一定空间结构的变性中间体。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。