查询词典 covalently

The nonlinear optical properties of two novel covalently bonded azobenzene polymers are studied.

研究了两种新的共价键联型含偶氮聚合物材料的二阶非线性光学性质。

The purpose of this study is to covalently modify adenoviral capsid with chitosan, a cationic and natural polymer.

本篇研究，我们利用一个正电性的天然高分子几丁聚醣来对腺病毒外壳进行共价性的修饰。

A cofactor that is covalently attached to the enzyme is called a prosthetic group.

与酶共价结合的辅助因子成为辅基。

Collis C M, Hall R M. Gene cassettes from the insert region of integrons are excised as covalently closed cirques ［J］.

特异性整合是将耐药基因盒整合到交换位点attI和attC，耐药基因盒可以自由的被整合或切除。

The methylene which formed in decarboxylation is covalently linked to the C-4 position in nicotinamide ring of 〓.

二个亚基沿R轴方向在s-loop区有较强的相互作用。

The genome of infectious hepatitis B virus is a partially double stranded circular DNA, and that of replicative HBV is a covalently closed circular supercoiled DNA. The patients with chronic HBV infection manifest from non-active virus carrier state to severe active hepatitis, and 15%~25% of which will evolve decompensate cirrhosis and hepatocellular carcinoma.

感染型的乙型肝炎病毒基因组为部分双链环状DNA，复制型的HBV基因组共价闭合环状DNA慢性HBV感染的进展过程多变，从非活动性病毒携带到严重的活动性肝炎；其中约15%~25%的病人最终导致失代偿性肝硬化、肝细胞癌。

Our results showed that 1, 8-Naphthyl imide could improve the properties of natural oligonucleotide in resisting nuclease and binding the targeted sequence by covalently linkage at the end of oligonucleotide. Moreover, our results also showed that the antigene oligonucleotide could specifically cleave the targeted double DNA sequence by modification of naphthyl imide at the 3'end of oligonucleotide.

体外结果表明萘二酰亚胺对寡核苷酸的共价修饰可以提高天然寡核苷酸抗核酸酶降解能力，提高寡核苷酸与靶序列结合的稳定性以及使寡核苷酸具有选择性结合和切断靶DNA的功能。

A large number of bond-type complexes, as long as the hydrogen of the molecules covalently coupled to the molecular approach in an electronegative atom up, that constitutes a hydrogen bond, there are intramolecular hydrogen bonds and intermolecular hydrogen bonds of the points, will affect the formation of complex reaction carried out, such as in solution adding dioxa cyclohexane, or tetrahydrofuran, will reduce the alkylation reaction rate.

氢键型络合物为数众多，只要含氢的分子以共价键方式耦合到分子中一个电负性原子上去，即构成氢键，有分子内氢键和分子间氢键之分，络合物的形成将会影响反应的进行，如在溶液中加入二氧杂环己烷或四氢呋喃，都会降低烷基化反应速率。

Reactive dye not only can covalently bind with modified flax by nucleophilic reaction, but also can form electrovalent bond. Attracting among hydronium is of benefit to nucleophilic reaction.

改性亚麻与活性染料之间即可发生亲核取代反应形成共价键结合，又可形成离子间的库仑力，而且离子间的相互吸引更有利于染料上的活性基与纤维素发生亲核取代反应。

These ingredients includes epidermal growth factor, hepatocyte growth factor, dimethyl sulfoxide, phenobarbital sodium and all trans-retinoic acid. We isolate and culture primary 10-weeks-old human fetal hepatocytes, observe hepatocytes form and its function markers. Inoculate hepatocytes with HBV Dane particles to observe if HBV susceptibility of fetal hepatocytes can be induced in vitro. To detect HBV covalently closed circular DNA within hepatocytes, we improve the existent PCR method.

基于上述假设，我们设计了10种培养条件，在自行设计的无血清培养基中添加不同的细胞分化诱导物，包括表皮生长因子、肝细胞生长因子、二甲基亚砜、苯巴比妥钠、全反式维甲酸等，分离孕10周龄人胎肝细胞进行原代培养，观测肝细胞形态及功能指标变化，并定时给予HBV感染，观察能否在体外诱导胎肝细胞出现HBV易感性；为检测肝细胞内HBV共价闭合环状DNA(covalently closed circular DNA，cccDNA)，我们改进了现有的PCR检测法。

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。