链与链之间

Structural stability for selenium and tellurium nanowires is studied by combining first-principles method and empirical approach.

图1晶体Se的结构示意图；晶体Se的结构示意图；Se原子链之间距离与能量的变化关系1。

Result of thermogravity analysis showed that the thermal stability of polyvinylamine chloride lowers with increasing in amination degree. Moreover, properties of dilute aqueous solutions of three types of poly chloride with different amination degree were compared by use of viscosimetric, conductometric, and potentiometric measurements. Results showed that both the electrostatic interaction of neighboring groups on the chain and the reduced viscosity of poly chloride are increased with increasing the degree of amination of poly . The equivalent conductivity is decreased with the increasing the concentration of poly chloride and increased with the increasing the amination degree of poly .

研究了聚乙烯胺盐酸盐的热稳定性和水溶液性质，发现：随着胺化度的提高，聚乙烯胺盐酸盐的对热稳定性逐步降低；聚乙烯胺盐酸盐是一种典型的聚电解质，其水溶液的pH值随平均分子量的变化并不明显，而随着聚乙烯胺胺化度的升高，pH值降低；随着聚乙烯胺盐酸盐的平均聚合度由82.3增加到201.8，它的m值（用于表征聚电解质侧链基团之间相互作用大小的常数）从5.13升高到5.58，而当聚乙烯胺盐酸盐的平均聚合度增加到311.4时，它的m值反而降低到了5.48；随着胺化度由55.65%升高到82.36%，m值由3.65提高到5.50；随着聚乙烯胺盐酸盐的平均聚合度的提高，聚乙烯胺盐酸盐的平均解离常数由7.48降低到7.26，同时随着胺化度的提高，聚乙烯胺盐酸盐的平均解离常数也由8.33降低到7.37；随着聚乙烯胺盐酸盐浓度的提高，溶液的摩尔电导率逐步降低，随着聚乙烯胺胺化度和聚合度的提高，溶液的摩尔电导率有所升高；在pH值为4左右时，聚乙烯胺盐酸盐的比浓粘度分别达到极值，而与聚合度的大小关系不大；聚乙烯胺盐酸盐的特性粘数明显高于其原料聚丙烯酰胺的特性粘数，分子量对特性粘数的影响十分明显，胺化度对特性粘数的影响并不显著。

SPWSG contains α-glucosidic bonds;furthermore the type of the glucosidicbonds was pyranose;protein was covalently linked with carbohydrate by O-glycosyllinkage.

红外光谱和β-消去反应表明：甘薯糖蛋白中含有α-糖苷键，糖苷类型主要为吡喃型；糖与蛋白的肽链之间的连接点类型是O-糖肽键。

After the excitation of YAG laser, 1、2、 4 were excited to their excited singlet states, then produced excited triplet states by intersystem crossing process, finally returned to their ground states.

在光敏剂1、2激发三重态与一系列链式缺电子烯烃之间的猝灭反应过程中，产生一具有电荷转移性质的激基复合物。

Is there a link for the Lemurian and the Mayan pyramids?

利莫里亚与玛雅金字塔之间是否有链接要素吗？

By using an empirical potential of free energy on dsDNA which was obtained experimentally by Strey, a relation between total energy of chip and some factors, such as nanogeometric, physical. chemical characteristics of DNA, geometric dimension, macroscopical mechanical properties of chip, etc was formulated under the consideration of mechanical energy of microcantilever beam, electrostatic energy, configuration entropy, and osmotic energy of gene-layer.

首先，在考虑微悬臂梁机械能和基因层静电能、构型熵、渗透能的情况下，借助Strey通过实验得到的双链DNA自由能的经验势，建立了DNA纳观几何、物理、化学特征以及芯片几何尺寸、宏观力学性能等因素与基因芯片总能量之间的关系。

Methods One hundred thirty PCOS women and one hundred seventy five normal women as controls were enrolled in this study. The genotypes were screened by polymerase chain reaction-On/off switch and the product was isolated by electrophoresis on a 2.5% agarose gel containing ethidium bromide and visualized using an ultraviolet transilluminator.

应用On/off Switch-聚合酶链反应及琼脂糖凝胶电泳分离技术分析130例多囊卵巢综合征患者及175例对照组妇女TNF-α基因rs3179060C/A多态，比较rs3179060C/A两组等位基因及基因型与PCOS及其高雄激素之间的关系。

This study is design and preparation of active peptide analogues of mung bean trypsin inhibitor Lys fragment, Trichosanthes trypsin inhibitor I, carcinoembryonic antigen peptide and aspartame using solid and liquid phase peptide synthesis methods.

本论文研究活性多肽类似物的设计、制备和功能，分为四个部分，采用多肽固相和液相合成的方法，分别合成了活性多肽绿豆胰蛋白酶抑制剂 Lys片段长链16肽、天花粉胰蛋白酶抑制剂、癌胚抗原肽、甜味肽等一系列类似物，并测定了这些类似物的生物活性，有以下新的研究结果：1、furin酶抑制剂的设计、制备和功能；2、芳香氨基酸芳环之间的π-π共轭能部分补偿二硫键的作用；3、癌胚抗原肽Gly4被L-Pro替代可增加与HLA-A2分子的结合；4、肽键对甜味肽保持甜味是必须的。

The present author intends to reread one of the most frequently anthologized American short story "A Good Man Is Hard to Find" by Flannery O'Connor, in an attempt to show that the great power of literature lies in its postponement of meaning.

奥康纳对反面人物&逆子&的同情令众人费解，但是，通过对他童年体验的分析，我们可以找到潜在愿望与有悖常理的行为之间的逻辑链，解释作者某些怪诞思想的合理性。

Supply chain system of the general contracting is based on the level of general contracting enterprise.

供应链管理是一种集成的，强调企业之间合作与协调的管理思想和方法。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了