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associate behavior
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  相似匹配句对
     Nevelopment of Behavior
     行为的发育
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     4)behavior;
     四是行为方式现代化;
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     The Algorithm of users behavior associate rules mining Based on Specific Pattern Tree
     基于特定模式树的用户行为关联规则挖掘算法
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     PILOT'S ASSOCIATE SYSTEM
     驾驶员辅助系统
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     Objective To investigate the knowledge, attitude and behavior intentions of nurses with associate degree toward patients with AIDS.
     目的 研究具有大专学历的在职护士有关艾滋病的相关知识、态度和行为趋向的现状。
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  associate behavior
However, as applications became more complex, it became apparent there needed to be a better way to associate behavior with features.
      


As the associated behavior of the business organizational conflict is a special one. There are negative and positive influences on the business organizational development. The objective of the business organizational conflict management is to eliminate the damage conflict and the negative influence, and to use the positive influence of conflict, and innovate.

企业组织冲突作为一个特定的冲突形态 ,对企业组织的发展有着消极破坏性和积极建设性的两重影响。企业组织冲突管理的主要任务是减少和消除破坏性冲突的发生及其消极影响 ,化不利为有利。充分利用建设性冲突的积极作用及冲突带来的创新机会 ,促进企业健康发展

The different steady-state and dynamic fluorescence methods, including luminescence probe, label fluorescence and fluorescence quenching measurements, have been used to investigate the association properties of the copolymer P(AM/POEA), composed of acrylamide (AM) and a small amount of 2-phenoxyethyl acrylate (POEA) (x POEA≤0.01) as hydrophobe in aqueous solution. The experimental results show that the self-associating behavior and aggregate structure of the copolymer are significantly dependent on...

The different steady-state and dynamic fluorescence methods, including luminescence probe, label fluorescence and fluorescence quenching measurements, have been used to investigate the association properties of the copolymer P(AM/POEA), composed of acrylamide (AM) and a small amount of 2-phenoxyethyl acrylate (POEA) (x POEA≤0.01) as hydrophobe in aqueous solution. The experimental results show that the self-associating behavior and aggregate structure of the copolymer are significantly dependent on their chain structure and concentration. The copolymers with the multi-blocky structure obtained by micellar copolymerization exhibit a large thickening property due to the intermolecular hydrophobical association, but that does not occur in the case of the random copolymers prepared by the conventional copolymerization. The association type and the thickening ability of the copolymers were found to directly related to the hydrophobe content of copolymer. With raising hydrophobe content the reduced viscosity firstly increases and then decreases due to the competition between intra- and inter-chain associations. Based on the fluorescence studies the multi-polymeric aggregate structure model was suggested, which further grows into cross-linked multi-aggregate and network as polymer aggregate concentration is increased. The ordered alignment phenomena of hydrophobe in the aggregate were also observed.

应用稳态和动态荧光光谱方法 ,包括荧光探针、标记荧光和荧光淬灭等研究了共聚物P(AM/POEA)在水溶液中的自缔合性质 .这种共聚物由丙烯酰胺 (AM)和少量疏水单体 2 苯氧乙基丙烯酸酯 (POEA)组成 .实验结果表明这类共聚物的自缔合行为和聚集体结构主要取决于聚合物的链结构和浓度 .由胶束共聚合方法得到具有多嵌段结构的共聚物 ,它们容易发生疏水缔合 ,并产生很强的增粘作用 ,而由普通共聚合方法得到的无规共聚物却没有这些性质 .同时这类聚合物的缔合类型及其增粘能力也直接与共聚物中的疏水体含量相关 ,随疏水体含量增加 ,由于分子间和分子内缔合的竞争 ,出现粘度先增后降的现象 .在荧光研究的基础上提出了多分子聚合物聚集体的结构模型 ,它随聚集体浓度增加 ,进一步形成多联聚集体和网状结构 .同时还观察到聚集体中疏水体有序排列现象 .

Three series of the amphiphilic block copolymers of acrylamide(AM) and styrene(St) were prepared in microemulsion medium by using sodium dodecyl sulfate(SDS) as the surfactant. One of the copolymer PAM-b-PSt series had a variation of the amount of the hydrophobic block segments PSt by changing the feed ratio in copolymerization at fixed amount of initiator and at constant level of St/SDS,the second had different lengths of the hydrophobic block section PSt by changing the ratio St/SDS which decides the length...

Three series of the amphiphilic block copolymers of acrylamide(AM) and styrene(St) were prepared in microemulsion medium by using sodium dodecyl sulfate(SDS) as the surfactant. One of the copolymer PAM-b-PSt series had a variation of the amount of the hydrophobic block segments PSt by changing the feed ratio in copolymerization at fixed amount of initiator and at constant level of St/SDS,the second had different lengths of the hydrophobic block section PSt by changing the ratio St/SDS which decides the length of the hydrophobic blocks,under fixed amount of initiator and at constant level of feed ratio of monomers,and the third had a variation of molecular weight by changing the amount of initiator at constant level of feed ratio of monomers and constant level of St/SDS. The hydrophobic associating behavior of amphiphilic block copolymers can be revealed at a macroscopic level by the formation of hydrophobic microdomains in aqueous solution and its surface activity can be displayed by the ability to decrease surface tension of aqueous solution. So the relationship between the microstructue and the hydrophobic associating property and surface activity of the amphiphilic block copolymer PAM-b-PSt was investigated by florescence probe technology and measuring of surface tension of aqueous solution. The experiment results showed that the hydrophobic associating property of PAM-b-PSt was dependent on its microstructue strongly. In aqueous solution,above a critical associating concentration,intermolecular hydrophobic interactions lead to the formation of polymolecular associations and the formation of hydrophobic microdomains. When the content of PSt blocks and molecular weight are constant for copolymers PAM-b-PSt, the hydrophobic associating extent varies with the change of the length of the hydrophobic blocks. The longer the hydrophobic blocks are,the stronger the hydrophobic association degree is. But the length of the hydrophobic blocks does not influence its surface activity nearly. When the length of the hydrophobic blocks and molecular weight are constant,the hydrophobic associating extent varies with the change of the content of PSt blocks,at a appropriate level of the content of PSt in the PAM-b-PSt molecular chains there are the strongest hydrophobic associating effects. When the length and content of the hydrophobic blocks are constant for copolymers PAM-b-PSt,the hydrophobic associating extent does not vary with the change of the molecular weight nearly. But,the molecular weight influences the surface activity of PAM-b-PSt obviously. The lower the molecular weight is,the stronger the surface activity is. Thus after clarifying the relationship between the aqueous solution properties and the microstructue for PAM-b-PSt,it is possible to control its association degree and surface activity for some purpose. [WT5HZ]

通过改变丙烯酰胺 ( AM)与苯乙烯 ( St)的投料比、苯乙烯与表面活性剂的加入量之比及引发剂加入量 ,在微乳液中制备了分子链微结构系列变化的丙烯酰胺 -苯乙烯双亲嵌段共聚物 ( PAM-b-PSt) ,用荧光探针法与表面活性测定法详细地研究了共聚物中 PSt嵌段长度、含量及分子量等微结构因素对共聚物在水溶液中的疏水缔合性与表面活性的影响 .结果表明 ,当共聚物水溶液的浓度高于临界缔合浓度时 ,PAM-b-PSt的疏水缔合作用以分子间的缔合为主 .若共聚物中 PSt嵌段含量及分子链长一定时 ,随着 PSt疏水嵌段长度增长 ,PAM-b-PSt的疏水缔合性增强 ,而对共聚物的表面活性影响很小 .若共聚物中 PSt疏水嵌段长度及分子链长一定时 ,PAM-b-PSt的疏水缔合性随着 PSt嵌段含量的变化而变化 ,当 PSt嵌段含量一定时 ,使大分子链之间产生最强的疏水缔合作用 ;而其表面活性则随着 PSt嵌段含量的增大而增强 .若共聚物中 PSt疏水嵌段长度及含量一定时 ,分子量对其表面活性有较大的影响 ,分子量越高 ,表面活性越差 ;同时 ,在较稀的溶液浓度范围内 ,分子量对 PAM-b-PSt的疏水缔合性的影...

通过改变丙烯酰胺 ( AM)与苯乙烯 ( St)的投料比、苯乙烯与表面活性剂的加入量之比及引发剂加入量 ,在微乳液中制备了分子链微结构系列变化的丙烯酰胺 -苯乙烯双亲嵌段共聚物 ( PAM-b-PSt) ,用荧光探针法与表面活性测定法详细地研究了共聚物中 PSt嵌段长度、含量及分子量等微结构因素对共聚物在水溶液中的疏水缔合性与表面活性的影响 .结果表明 ,当共聚物水溶液的浓度高于临界缔合浓度时 ,PAM-b-PSt的疏水缔合作用以分子间的缔合为主 .若共聚物中 PSt嵌段含量及分子链长一定时 ,随着 PSt疏水嵌段长度增长 ,PAM-b-PSt的疏水缔合性增强 ,而对共聚物的表面活性影响很小 .若共聚物中 PSt疏水嵌段长度及分子链长一定时 ,PAM-b-PSt的疏水缔合性随着 PSt嵌段含量的变化而变化 ,当 PSt嵌段含量一定时 ,使大分子链之间产生最强的疏水缔合作用 ;而其表面活性则随着 PSt嵌段含量的增大而增强 .若共聚物中 PSt疏水嵌段长度及含量一定时 ,分子量对其表面活性有较大的影响 ,分子量越高 ,表面活性越差 ;同时 ,在较稀的溶液浓度范围内 ,分子量对 PAM-b-PSt的疏水缔合性的影响则很小 .

 
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