共价

Cu（Ⅱ）-正胺络合物共价性的ESR研究

ESR studies on the covalence properties of copper ( ⅱ ) - n - amine complexes

C（60）是高度共轭的笼状结构的碳素体，分子结构中六边形环间的共价碳碳双键是富电子区，反应性能与烯烃有类似性，主要表现为双键加成。

C_ ( 60 ) is one kind of fullerene with high conjugated cage-types structure . Its covalence between two hexagons has high reactivity , which behaves as addition reaction of double bond .

最简单的共价键分子由两个氢原子组成。

The simplest covalently bonded molecule is formed from two hydrogen atoms .

用一系列手段对富勒烯与GO之间的非共价结合进行了表征。

A series of methods were used to characterize the combination of fullerene and GO .

一种简易的抽提共价闭合环状DNA的方法

A Simple Method for Isolation of Covalently Closed Circular DNA Molecules

电喷雾质谱研究谷胱甘肽与B族维生素的非共价复合物

Investigation on the Non-covalent Complexes of Glutathione and Vitamin B by Mass Spectrometry

一种玻璃载片共价键固定DNA的新方法

A novel method for covalent attachment of synthetic DNA to glass support

菁染料共价键合在单晶硅表面的X－光电子能谱

X-photoelectron spectra of cyanine dyes with covalent binding to monocrystalline silicon surface

双链DNA与生物碱类化合物非共价作用的电喷雾质谱研究

Study on Non-covalent Complexes between Double-stranded DNA and Alkaloid Compounds by Electrospray Ionization Mass Spectrometry

H3-K4、H3-K36、H3-K79甲基化具有激活效应，而且组蛋白甲基化与其它组蛋白共价修饰之间以及DNA甲基化之间存在对话。

And there exists cross-talk among histone methylation and other histone covalent modifications and DNA methylation .

方法细菌染色体DNA经分离纯化并变性后，直接非共价结合于固相微孔板中，与标有光标生物素的DNA探针进行杂交。

Methods : The denatured bacterial chromosome DNA linked to microplate reacted to the probe which was labeled by photobiotin .

目的建立一种肝活检组织中HBV共价闭合环状DNA的定量检测方法。

Objective To establish a method for detecting HBV cccDNA in hepatocytes of chronic hepatitis B patients .

本文采用扩展的准一维紧束缚模型讨论了两种DNA分子及其通过共价键键合后的几何结构及电子结构特性。

In this work , two kinds of DNA coupling electronic characteristic , within the extended one-dimensional tight-binding model were studied .

DNA链之间可能存在非共价相互作用以维持这种结构。螺线管型结构可能是水溶液中的超螺旋DNA分子普遍的存在形式。

Some of noncovalent interactions between the coils of DNA double strand may be involved in the solenoidal structure of DNA .

DNA甲基化（DNAMethylation）是真核生物基因组最常见的一种DNA共价修饰形式，是表观遗传学的一个重要方面。

DNA methylation is a usual covalent modification in eukarya genome and is an important part of epigenetics .

基于等离子体聚合膜的电化学生物传感器及共价固定卟啉的pH光化学传感器的研究

Studies on Electrochemical Biosensors Based on Plasma Polymerized Film and Opto-chemical pH Sensor Based on Covalent Immobilization of Porphyrin

研究结果表明：两者结构中Al的键级和Al&O键共价键级大致相同。

The results show : their bond order of Al and covalent bond order of Al-O bond are alike ;

慢性乙型肝炎共价闭合环状DNA定量测定在诊断和治疗中的价值

Evaluation of the Value of Quantitative Assay of Hepatitis B Virus Covalently Closed Circular DNA in Diagnosis and Therapy of Chronic Hepatitis B

抑制素B是睾丸来源的糖蛋白激素，由两个亚单位共价连接而成。

Inhibin B is a glycoprotein secreted by testis , consisting of two disulfide linked subunits , an α subunit and a β B subunit .

Mo、Co主要分布在籽粒中；半经验CNDO自洽场分子轨道法在共价半导体研究中的应用

Applications of Semiempirical CNDO SCF MO to Covalent Semiconductors Studies

DNA回旋酶是细菌特有的一种拓扑异构酶，它能够利用ATP水解的能量将共价闭合环状DNA转变为负超螺旋DNA，从而维持细菌体内正常的超螺旋水平。

DNA gyrase is an essential bacterial topoisomerase that catalyzes the ATP dependent negative supercoiling of double stranded closed circular DNA .

价键（VB）理论在经典的共价键理论基础上产生。

Valence-bond theory was formed on the basis of the classical ideas of valence bond .

染色质重塑主要包括2种类型：一种是依赖ATP的物理修饰，另一种是依赖共价结合反应的化学修饰。

Chromatin remodeling is achieved through ATP dependent physical modifications and covalent chemical reactions .

Schiff碱稀土配合物以共价键连接方式组装到介孔块体材料的研究

Study on Schiff Base Lanthanide Complexes Covalently Bonded to Meso-structured Silica

医用TiO2/SiO2薄膜表面共价键合肝素研究

Covalent immobilization of heparin onto tio_2 / sio_2 films for biomedical applications

并列而排的转移RNA阅读邻近的密码子，带来氨基酸并将其以共价键连接起来。

Juxtaposed tRNAs , reading adjacent codes , bring together amino acids , which are then covalently joined to together .

表面功能化SiO2纳米微粒的制备及其共价组装

Preparation and Self-Assembly Surface-Functional Silica Nanoparticles through Covalent Interaction

ICP-AES测试结果提示醇铁分子的铁原子是以共价键的形式与聚合物链相键合的。

ICP-AES measurements revealed that the iron atoms were chemically bound to the polymer chains .

为此，本课题对天然的HA采用了离子交联法和共价键交联法进行了化学修饰，目的是延长HA在体内的滞留时间，并对两种交联方法进行了对比实验研究。

So natural HA is chemically modified in the study and the methods include ion cross-linking and covalent bond cross-linking .

作为本文研究的主要目的，证实了Xα&重叠球方法在研究共价半导体中深能级杂质的适用性。

As a principal aim of the paper , suitability of the Xa-overlapping sphere method is demonstrated by investigating the deep levels in covalent semiconductors .