查询词典 covalent

Commercially important covalent amides include several used as solvents; others are the sulfa drugs and nylon.

具有重要商业价值的共价醯胺中有若干种用作溶剂；其它的有磺胺药以及尼龙。

As a sugar molecule contains polyhydroxyl groups, one can use an appropriate receptor to catch the sugar molecular via hydrogen bondings or covalent interactions.

中文摘要醣在细胞的辨识方面扮演很重要的角色，所以有钗h需要研究其分子辨识的方法；醣含有钗h的羟基，因此可以用含氢键，或是含有可以用共价键键结的受体去辨识。

The ligands donate the lone pair electrons to the central metal to form the covalent bondings, called coordination bondings.

配体提供原子对与金属原子形成的共价键称为配位键。

This model is also extended to predict the structural changes in nc-GaN with different covalency from BaTiO3, which promises the universality of this model in covalent-ionic nanocrystals.

说明了该模型在共价-离子晶体纳米材料体系中的普适性。

In addition,the spectra and the g factor of GaP∶Co2+ crystal also are analyzed,the results show that,for the strongly covalent of GaP∶Co2+ crystal,it is not reasonable to neglect the covalency and the contribution due to the s.o.coupling of the ligand ion.

本文结果表明，由于GaP∶Co2+晶体共价性很强，再忽略共价性及配体旋轨耦合的贡献是不合理的。

Adding transition metals into the TiN films by arc ion plating (1) The hardnesses of theN films are higher that that of the TiN films, proving that the alloy hardening effect is a common phenomenon;(2) The structures of the alloyed films are determined by the added element properties such as covalent radius, electro negativity, free energy and lattice parameters of the MN compound;(3) theN film consists of a mixture of multi phases with high hardness but quite brittle, while the other MN films are composed of single phase with the fcc TiN structure and their hardesses, functions of the added amounts of the elements, manifest always a maximum at a certain M percentage.

一、将过渡金属M用电弧离子镀方法添加于TiN薄膜中：1。N薄膜硬度均高于TiN薄膜硬度，合金强化效应普遍存在；2。薄膜相结构决定于添加元素M的周期律信息，包括M的共价半径、电负性，及MN化合物的自由能、晶格常数等；3。N为多相混合结构，薄膜硬度高，但韧性差；其它N的相结构为TiN类型的单一fcc结构，薄膜硬度随M添加量变化并出现峰值；4。

Covalent modification of histones on chromatin is a dynamic mechanism by which various nuclear processes are regulated.

染色质上组蛋白的共价修饰是一个动态的机制，多种细胞核过程通过该机制被调控。

D-amino acid ; Glutathione ; Non-covalent complex ; Electrospray ionization mass spectrometry ; Dissociation constant

D-氨基酸；谷胱甘肽；非共价复合物；电喷雾质谱；解离常数

Results of non-reducing sodium dodecyl sulphate polyacrylamide gel electrophoresis of the supernatant and aggregate precipitate formed in refolding process show that except being refolded to native egg white lysozymes, the reduced-denatured lysozymes can also form the aggregates with molecular weights being separately about 30.0 and 35.0 kD, while the reducing SDS-PAGE and the refolding results in the presence of sodium dodecyl sulphate show that these aggregates are formed chiefly through the misconnection of disulfide bonds between the reduced-denatured lysozymes, and the aggregate precipitates are formed through the non-covalent interactions between the aggregates with molecular weight being about 30.0 kD.

复性过程形成的上清和集聚体沉淀的非还原电泳结果表明，除了能复性成天然态的溶菌酶分子外，还原变性蛋白溶菌酶同时还能形成分子量分别约为30.0KD和35.0KD的蛋白溶菌酶分子集聚体；而它们的还原电泳和在SDS存在时的复性结果表明，这些集聚体主要是通过还原变性蛋白溶菌酶分子间的二硫键错配而形成，而集聚体沉淀则是通过分子量约为30.0KD的集聚体分子之间的非共价相互作用而形成。

The specific decomposition of the terms depends on the force field, but a general form for the total energy in an additive force field can be written as where the components of the covalent and noncovalent contributions are given by the following summations

特别的分解项依赖于力场，但是总能力的一般的形式在增加力场可以写为，这里共价键和非共价键贡献可以写为

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。