查询词典 modification

Modification of starch levels in plants can be achieved, as well as the targeting of genes from the starch biosynthetic or degradative pathways, disease or pest resistance or variation of gene expression due to stimulus are described.

披露了可以实现对植物中淀粉含量的改变，以及由于刺激所产生的来自淀粉生物合成或降解途径的基因的定向，病虫害抗性或基因表达的改变。

The reactivity of wheat straw soda lignin can be improved by demethylation modification.

麦草碱木素在碱催化下经脱甲基改性可提高其反应活性。

This paper analyses emphatically the design and realization of IMS-UA, including SIP stack modification, the design of SIPUAM, the design and realization of SIPUA basic functions and so on. And combining the actual SIP signal communication flow, the register/deregister, subscribe/notify event and call/session control functions are designed and realized.

本文着重分析了AGCF实体中IMS-UA部件的网络结构，设计和实现了IMS-UA部件的主要功能，包括改进了移植的SIP协议栈、设计了SIP用户代理管理器，并结合实际的SIP信令通信流程，设计和实现了SIP用户代理功能。

Dimethyl dicarboxylate biphenyl and β-dimethyl dicarboxylate biphenyl have anti-hepatitis activity. The modification to them gave twelve asymmetry biphenyl compounds.

对保肝药物联苯双酯进行了修饰改造，得到12种不对称的联苯化合物，期望能够改变其药效及溶解性。

A new cationic polyelectrolyte has been synthesized by the modification of polyacrylamide with formaldehyde and dicyanodiamide.

用甲醛和二氰二胺改性聚丙烯酸胺，制得新型阳离子聚电解质PAm·MG，对PAm·MG的合成和表征进行了研究。

The spectra of X-ray diffract revealed that its crystal is B type and the value is about 18%, far lower than that of ordinary maize starch. With the method of chemistry modification, we modified the amylose starch with acetates. The result showed that the best reaction condition was at the ratio of 1:5.3 (glucose: acerbity), with MSA 1.5% catalyzer, at 75℃ for 3 h.

利用化学改性法对高直链玉米淀粉进行醋酸酯化改性，最佳反应条件为，淀粉葡萄糖基与酸的质量比1：5.3、催化剂甲磺酸用量为体系的1.5%、反应温度75℃、反应时间3 h，在此条件下可制备取代度为2.84的醋酸酯淀粉，比普通玉米淀粉高0.78。

As an artificial enzyme, it can be optimized by changing the diphenylmethane units or bridging chains or by chemical modification of hydrophobic cavities to form new host compounds. Different host compounds can recognize different guest compounds to become an supramolecular system.

不同的主体化合物能俘获不同种类的客体分子，与客体形成超分子体系，对不同反应底物进行络合和催化，达到有选择性地控制反应，提高反应速率，模拟酶促反应和分子识别的目的。

In the framework of the density functional theory, the structure of the α modification of zinc diphosphide (α-ZnP2) at the pressure from zero to 40 GPa is investigated by using molecular dynamics simulation, in which both the local density approximation and the generalized gradient approximation are employed.

利用密度泛函理论，分别采用广义梯度近似和局域密度近似对α-ZnP2在0~40GPa范围内的结构进行相关的分子动力学模拟，得到了它的压强-体积关系。

In this article, the causes were analyzed in connection with the modification of GW5 disconnector and the experience was summed up.

经详细分析故障原因后，在荆门枣山变电所布置的GW5型隔离开关的检修中，进行了技术改造，检修后运行正常。

It has been extensively applied in materialfabrication and modification, ozone synthesis, waste treatment, displayer and manyothers.

等离子体已经在材料合成及修饰、臭氧合成、废弃物处理、显示器等方面取得了举世瞩目的工业成就。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。