构象的

The influences of the inclusion of Na~+ into each conformer (C7AB, C7"AB, C7eqB, C5A, C7axB orα"B) of AD molecule on the Ramachandran angles of molecular backbone and the hydrogen bonds in AD moiety were discussed in detail. It was found that in the forming process of bidentate structures of Na~+-AD ion-complexes, the original H-bonds in AD molecule were fully broken down, accompanying with the new formation of the two Na-O bonds.

论文中详细探讨了Na~+-AD络合离子六种构象的空间构型，分析了丙氨酸二肽与Na~+作用过程中AD分子骨架Ramachandran角及分子内N(1)–H(1)…O(2)、N(2)–H(2)…O(1)、N(1)–H(1)…N(2)和N(2)–H(2)…N(1)氢键的变化，研究发现Na~+与AD分子形成双齿结构时，AD骨架中原先的氢键全部被破坏，继而形成了两个新的Na-O键；Na~+与AD分子形成单齿络合离子时，AD骨架中原先的氢键或者得到增强或者断裂之后出现新的强度更大的氢键。

The Scheutjens - Fleer model on monodisperse polymer adsorption was extended to the situation of polydisperse polymer adsorption by the method of seeking the extremum of the partition function constructed for the system.

采用构作配分函数而后求极值的方法，将Scheutjens-Fleer模型推广到多分散高分子吸附情形，并采用适当的计算方法，解决了长期以来人们难以解决的多分散高分子模型计算上的困难，研究了固液界面区域多分散高分子的微观吸附行为、多分散指数对吸附层性质的影响以及各种微观构象的链段大小的几率分布。

Triose phosphate isomerase was prepared and purified from chicken breast muscle. The equilibrium unfolding of TIM induced by guanidine hydrochloride was investigated by following the changes in intrinsic fluorescence, circular dichroism and second-derivative spectroscopy.

从鸡胸肌中纯化出磷酸丙糖异构酶(triose phosphate isomerase， TIM)，通过蛋白质内源荧光，圆二色性，紫外吸收二阶导数光谱等多种研究溶液构象的方法，对TIM被盐酸胍和热变性过程进行了详细的研究。

In chapter four, the chiral recognition properties of one chiral calix [4] crown ether toward amygdalic acid and dibenzoyl-tartaric acid were studied by 〓H NMR,〓C NMR and UV-vis spectroscopy.

研究结果表明，手性杯[4]氮杂冠醚对二者均有一定的手性识别能力，并发现针对不同的客体，主体以不同的构象与之相互作用，证实分子识别过程中存在构象的变化。

The structure-activity relationship of DSIP and con formational study of this peptide in solution were also presented.

概述了Delta－诱眠肽的构效关系及溶液构象的研究进展，展望了Delta－诱眠肽的研究方向。

The existence of dextran sulphate to the native ovalbumin leads to decrease about 60％ in fluorescence intensity following high pressure treatment. Complexation of polysaccharide with ovalbumin seems to protect the protein against pressure induced conformational change and aggregation; The presence of τ-carrageenan in glycinin solution is also found to protect the protein against pressure.

经超高压处理后，加入硫酸右旋糖苷的鸡蛋清蛋白溶液中的ANS荧光强度显著降低，降低约60％；这表明，硫酸右旋糖苷的加入可以和鸡蛋清蛋白相互作用，从而在超高压处理中起到稳定蛋白质天然构象的作用；对于大豆豆球蛋白溶液而言，ι-角叉菜胶的加入有维持高压下大豆豆球蛋白构象稳定性的作用。

Autocorrelation topological study on the acute toxicities of substituted aromatic compound s;2. The autocorrelation topological researches on slow and acutetoxicities of substituted aromatic compound s to scenedesmus ubliquus, rat and so on;3. Results show that the SW and KOW of the substituted aromatic compound s could be better forecasted at AM1 level.

应用分子力学方法MM+和半经验量子化学AM1、MNDO和PM3法得到了54种取代芳烃的优势构象，在此基础上结合分子图形学技术，获得相应优化构象的电子结构参数和几何结构参数，并将这些参数与取代芳烃的辛醇/水分配系数和溶解度相关联。

The results indicated that Eu3+ mainly interacts with the carbonyl oxygen in the amino acid residues of the peptide chain of CAT because rare earth ions are easy to coordinate with O, causing the change in the peptide conformation and in turn the change in the structure of the heme group of CAT.

结果表明，由于稀土离子易与O键合，因此，Eu3+主要与CAT肽链上的氨基酸残基中的羰基氧配位，引起肽链构象的变化，而构象的变化又会诱导CAT中的血红素结构的变化。

For the fourth part, we first designed a hydrogen bonding-mediated rigidified polymer. The X-ray crystal analysis of its fragment molecules showed the existence of consecutive intramolecular hydrogen bonds, which forced the backbone to adopt a rigidified planar conformation.

在第四部分工作中，首先我们设计了一种分子内氢键控制构象的聚合物，通过对其氢键骨架的单晶培养和结构解析证实在它们的结构中存在三中心氢键使得它们采取平面刚性的构象。

The details are specified as follows:1 Prediction of KGM chain structureUsing computing molecular structure software: Hyperchem7.0 VM2.0, methods of molecular dynamics and molecular mechanics and the model of single KGM chain , polymerization degree as well as the influence of substitution group on dynamics conformation and the interaction affecting chain conformation were researched.

主要研究内容与结果如下： 1。葡甘聚糖单链高级结构的预测利用Hyperchem7.0、VM2.0分子结构计算软件采用分子动力学和分子力学的方法，以真空中葡甘聚糖单链为研究模型，研究了聚合度、取代基对动态构象的影响及影响链构象的作用力。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。