查询词典 customs bond

A scissile mineral;a scissile peptide bond.

易分割的矿石；易分割的肽键

Second, residues in the reactive site of the inhibitor were replaced by the consensus substrate recognition sequence of furin, namely, Arg at P_1, Lys at P_2, Arg at P_4 and Arg at P_6. In addition, the P_7 residue Asp was substituted with Ala to avoid possible electrostatic interference with furin inhibition. Finally, the extra N and C terminal residues beyond the doubly conjugated disulfide loops were further truncated. However, all resultant synthetic peptides were found to be temporary inhibitors of furin and kexin during a prolonged incubation, with the scissile peptide bond between P1 and P'1 cleaved to different extents by the enzymes.

高活性、低分子量的furin酶抑制剂有可能发展成为新型的抗细菌内毒素和抗病毒感染的药物，我们以绿豆胰蛋白酶抑制剂Lys片段长链22肽为模板，设计了一系列能抑制furin和kexin活性的突变体，采用如下三种方法逐步优化：一、去除Lys片段长链三对二硫键中的一对，用Ser替换Cys，减少可能存在的二硫键错误配对；二、抑制剂的活性中心根据furin底物的专一性逐步改变，即P1、P2、P4和P6位分别变为Arg、Lys、Arg和Arg，同时为了避免P7 Asp和P6 Arg之间可能存在的相互作用，将P7位Asp替换为Ala；三、将两对二硫键形成的双环的外面5个氨基酸残基去除。

Based on Seah's"new"theory, the four modification are adapted: a The modification factor α〓 is introduced according to the properties of impurities and the rule of cohesion bonds; b The parameter of cohesion bond energy ε〓 is calculated from the sublimation enthalpy according to chemical coordination number.

这为基于合金晶界微化学设计的合金韧化工作指明了方向，并从思路及方法上，阐述了可能性。 4。本文研究了合金设计专家系统所需的知识表达方式，认为以语义网络为基础，并结合产生式规则的知识表达模式，比较适合于合金设计领域的知识描述。

Several main non-ionic surfactants (AEO、TX、SpanTweem、EL) was used to emulsify liquid paraffin and di octyl sebacate and the anti-coalescence stability of the corresponding emulsion was studied, the impact of the presence of benzene and double bond in lyophobic moiety of surfactant and its length and matching with dispersed phase upon the interfacial viscosity and Gibbs elasticity was analyzed.

本文采用了几种主要的非离子活性剂(AEO、TX、Span-Tween、EL)来乳化白油和癸二酸二辛酯，通过对各乳液体系抗聚并稳定性的考察，分析了活性剂亲油链段的长度、苯环和双键的存在、及亲油链段与被乳化对象分子结构的匹配关系对界面粘度和Gibbs弹性的影响。

The result s show that the chemical reactions between n2 HA and sebacic acid never occur , n2 HA and 1 , 2 - PPSC mat rix do not generate obviously chemical bond , and n2 HA disperses uniformly in 1 , 2 - PPSC mat rix.

结果表明， n2 HA与癸二酸没有发生化学反应， n2 HA与 1 ， 2 - PPSC基体无明显化学键生成， n2 HA均匀分散在 1 ， 2- PPSC基体中。

The reactions that isocyanate reacted to cellulose, semicellulose, lignin, and water in timber to form the urethane and urea are basic knowledge for the adhesion of isocyanate-terminated polyurethane resins to wood. It has significant meaning to understand that different quantity of urethane and urea affect the strength of adhesive bond.

异氰酸酯基与木材中的纤维素、木素、半纤维素和水在一定条件下生成氨基甲酸酯和取代脲的反应是聚氨酯胶粘剂与木材胶接的基础反应，研究氨基甲酸酯和取代脲的生成量对胶接强度的影响具有积极的理论意义和实践指导价值。

The results showed that using polymer film forming agent together with silicane coupling agent could not only enhance the chemical bond between GF and resin matrix,increasing crystallinity of the resin,forming stable boundary layer,but also make GF orientating easier along the flow direction in resin.

但是，人们发现即使采用优化的偶联剂处理工艺处理GF，其增强效果也时常不佳，这与GF增强热塑性树脂复合材料熔体在熔融流动成型过程中，因强烈的剪切作用导致复合材料界面发生脱粘现象，使

In this paper, dynamic model of slewing hydraulic system of excavating working attachment is established by means of power bond graph.

当然也可由功率键合图推导出传统的传递函数或状态变量形式的方程，在实际中，要求传递函数和状态变量模型形式在结构上的规整性可能引起麻烦，主要是稳定性问题。

"This scheme is a great way to create an internal bond among staff and get them moving in the same direction," Mr Slone said.

斯隆表示：&该计划是在员工间建立内部纽带，使他们朝同一个方向努力的一种出色方式。&

Besides keeping a strong bond, those people you spend your time stargazing do look prettier.

除保留强的债券以外，您花费您的时间眺望的那些人看起来俏丽。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。