查询词典 covariance functional

Bombyx mori silk fibroin film was treated by plasma processes with SO 2 gas to introduce functional groups on the surface of film. Meanwhile, functional groups were also introduced by the reaction of 1,3 propane sultone with amine sites on the surface of silk fibroin film which were produced by NH 3 gas plasma.

从蚕丝中提取的丝素蛋白制备成薄膜，首次采用二氧化硫等离子体处理在材料表面引入磺酸基团；同时丝素蛋白膜用氨气等离子体处理后在表面接入氨基，利用 1，3 丙磺酸内酯与氨基的反应在材料表面接枝磺酸基团。

Starting from the hydroxylamine (dimethyl amino ethanol, triethanolamine) and 1, 3-propane sultone, a series of hydroxyl and sulfonyl dual-functionalized zwitterionic salts were synthesized. Then dual-functionalized ionic liquids containing both hydroxyl and sulfonyl functional groups were produced successfully by zwitterionic salts and three kinds of strong acids (p-toluene sulfonic acid, trifluoromethanesulfonic acid, methanesulfonic acid) respectively. The structure of zwitterionic salts and dual-functional ionic liquids were confirmed by the 1H NMR and IR.

以羟基有机胺(N，N-二甲基乙醇胺，三乙醇胺)为原料与1，3-磺酸内酯反应合成了一系列含有羟基和磺酸基双官能团的内盐，并将所得到的内盐分别与三种强酸(对甲苯磺酸，三氟磺酸，甲磺酸)反应，成功地合成了双功能化室温离子液体，并通过红外光谱、核磁氢谱测定，证实了内盐和双功能化离子液体的结构。

The are also new findings of the research results that country image's impression on functional appraise of products is higher than symbolistic appraise of products significantly, and the symbolistic appraise of products has greater general impression on purchase intention than functional appraise of products significantly.

通过将产品评价划分为产品评价象征性和产品评价功能性，发现国家形象对产品功能性评价的影响要显著地高于对产品象征性评价的影响，而产品象征性评价对购买意愿的总影响要显著地高于产品功能性评价对购买意愿的总影响。

Thioindigo ; density functional theory; time-dependent density functional theory; electronic absorption spectrum

硫靛染料；密度泛函理论；含时密度泛函理论；电子吸收光谱

The geometrical structures of thioindigo chromophores were studied at the B3LYP/6-31+G* level of density functional theory. Subsequently, the electronic absorption spectrum was calculated using the time-dependent density functional theory approach at the same level.

在密度泛函理论的B3LYP/6-31+G*水平上对硫靛染料发色体的几何结构进行优化计算，在获得基态稳定结构的基础上，应用含时密度泛函理论方法在相同水平计算电子吸收光谱。

Dataflow-state matrix is extracted for each instruction, based on the matrix, paths are classified into functional untestable paths and potential functional testable paths.

对于每条指令提取出状态矩阵，并基于状态矩阵将通路分为功能不可测和潜在功能可测的。

The structure,processing characteristics,biolog ical function of functional factors in colostrums and immune milk and their application,in food industry are reviewed,and the development directions of functional factors are presented in this paper.

综述了初乳与免疫乳中功能成分的结构特性、加工特性、生物学功能以及在食品领域中的应用，并提出了开发牛乳中功能成分的方向。

Microbial functional diversity and functional resilience in soil after repeated carbendazim applications were estimated with BIOLOG Ecoplates.

随着施药频率的增加，多菌灵对土壤微生物群落多样性的抑制作用逐步减弱。

Considering the characteristics of multi-variables and multi-objectives in the burnup calculation process of nuclear system, the optimization control method based on GA is presented as a functional module of the multi-functional transport/bu...

利用FDS课题组开发的多功能中子学程序系统VisualBUS1.0，针对该系统燃耗计算过程具有多变量和多目标函数复杂关系的特点，应用遗传算法对嬗变包层的锕系废料嬗变区的初装料量进行了优化处理，使其在一定的物理和工程参数约束下，指导嬗变区的装料份额取值，分析嬗变区的装料份额对锕系废料的年燃耗深度等参数的影响。

Allyl-functional novolac with allylation degree of 173 % was synthesized , followed by copolymerizing with 4 , 42bismaleimide biphenyl methane at a mass ratio of 1∶1 to obtain BMI2modified allyl-functional novolac (BMAN173) resin.

制备了烯丙基化程度可达 173 %的烯丙基酚醛树脂(AN173)，并与双马来酰亚胺以 1 ∶1 的质量比进行共聚，制备了双马改性的烯丙基酚醛树脂(BMAN173)。

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。