- 更多网络例句与聚合的相关的网络例句 [注:此内容来源于网络,仅供参考]
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The thesis studies the difference between GWSs composition and traditional workflow applications, proposes the implement mechanism and technical architecture of GWSs composition and defines the reference model of GWSs composition platform, which provide holistic framework and top-level guidance for studying dynamic GWSs composition technology, designing GWSs composition platform, and implementing representative composite service applications.2、Theories and methods of composite process modeling and process analysis. This thesis proposes a meta-model of Geo-spatial Web services composition process defining from two aspects, i.e. process and resource. According to the process definition meta-model, we propose a new Geo-spatial Web services composition Process/Resource model based on extended WF-net, which effectively resolves the problems on uncertain activity option and dynamic variation of service in composite process model. A notion with regard to soundness of process model is proposed from three aspects, i.e. the structural correctness of process model, validity of data link and validity of resource. The notion of soundness definitely gives a dividing line on correctness of composite GWS process. This thesis analyzes sufficient and essential terms of soundness, and studies compositional property of WSCP/R-net models which provides an effective method to construct a soundness WSCP/R-net model. According to WSCP/R-net, the thesis proposes composition algebra and studies the properties of it. Based on the composition algebra, 6 kinds of composite process reduction rules are induced to optimize the process.3、Geo-spatial Web service QoS model and its application architecture. This thesis proposes an extendable GWS QoS model from three aspects, i.e. Geo-spatial Web Service itself, networking conditions and service consumer which can be used to distinguish GWSs with overlapping or identical functionality. We work over the QoS evaluation methods of composite GWS process which can be used to guide the execution, monitor and service selection of composition process. Aming at some disadvantages in traditional Web service discovery model for its lacking of QoS supporting, this thesis proposes a new service discovery model SDMQ supporting QoS constraints.4、Technologies of composite service executing. SSPL, a new composite service process language, is defined to overcome the disadvantages of existing composite services process languages which can not adapt to the dynamic variation of Geo-spatial Web Services. An algorithm is described to translate WSCP/R-net model into SSPL. The thesis studies the model of dynamic services selection with QoS global optimization, presenting an algorithm GODSS to resolve dynamic services selection with QoS global optimization in GWSs Composition.5、Design and implement experimental system and representative applications. According to the research findings presented above, we design and implement an experimental system and construct two representative applications to show that our achievements are effective and practical.
针对当前空间信息服务聚合研究中存在的若干不足,本文重点在基于工作流的空间信息服务聚合框架、空间信息服务聚合流程建模和分析技术、空间信息服务QoS模型及应用体系以及空间信息服务聚合流程执行等几个方面进行深入研究,主要工作和创新点包括:1、基于工作流的空间信息服务动态聚合框架:研究了空间信息服务动态聚合和传统工作流应用的不同,在此基础上提出了基于工作流技术的空间信息服务动态聚合实现机制、技术体系和参考模型,为研究空间信息服务聚合的关键技术、开发服务聚合支撑平台以及在此基础上构造特定的空间信息服务聚合应用提供了总体框架和顶层指导。2、空间信息服务聚合流程建模和分析技术:首先基于动态服务聚合流程建模的需求和空间信息服务动态变化的应用实际,从服务聚合的过程维和资源维出发定义了服务聚合流程定义元模型;与之相对应,对基本的WF-net进行扩展,提出服务聚合流程/资源网作为空间信息服务聚合流程的形式化描述模型,有效解决了现有的基于基本Petri网和工作流网的服务聚合建模方法所不能解决的不确定路径选择和服务的动态变化性问题;从流程结构正确性、数据依赖有效性和资源实现有效性三个方面提出了WSCP/R-net健壮性的概念,明确界定了聚合流程正确性的标准,并对WSCP/R-net模型的健壮性分析方法和WSCP/R-net模型的组合特性进行了研究;提出了空间信息服务聚合代数算子并对其性质进行了研究,在此基础上提出了6种聚合流程约简规则,从而可达到优化聚合流程、提高聚合流程执行效率的目的。3、空间信息服务QoS模型和应用体系:从服务本身、网络环境和服务消费者三个层次出发,提出了一个可扩展的空间信息服务QoS模型GSQM,实现了对空间信息服务的度量和评价,并对GSQM不同质量要素信息的客观、公正采集方法进行了研究;研究了空间信息服务聚合流程QoS评价方法,有效支持了空间信息服务聚合流程的执行、监控以及服务选择等操作;针对目前的服务发现模型仅支持服务功能性描述、不能有效满足空间信息服务应用需求的现状,提出了一种新的支持QoS约束的服务发现模型SDMQ,并对模型的实现框架进行了研究。4、空间信息服务聚合流程执行技术:针对现有的服务聚合流程描述语言不能有效满足空间信息服务动态聚合流程描述的特点,基于BPEL4WS提出了一种新的空间信息服务聚合流程描述语言SSPL;研究了满足健壮性要求的WSCP/R-net模型向SSPL的转换算法,在此基础上可以满足用户无显式编码来实现空间信息服务聚合应用的目的;研究了服务动态选择QoS全局优化模型,并在此基础上提出了一种解决服务动态选择QoS全局优化问题的实现算法GODSS.5、基于论文研究成果,设计实现了"空间信息服务聚合实验系统",并构建了"矿产资源评价"和"城市消防应急响应"两个典型应用案例,对论文所述模型、方法的可行性和有效性进行了验证。
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The effects of different factors on the laser-induced graft polymerization on the PET surface were analyzed, and the mechanisms were discussed. The factors were: 1 Monomers with smaller molecules resulted in better modification than polymeric monomers. Acrylamide monomer was chosen as hydrophilic modifier finally; 2 Higher concentration of the monomer solution favored the graft reaction; 3 With the increasing laser fluence, the surface hydrophilicity of PET films increased at first, then decreased. More laser pulses led to a more hydrophilic surface; 4 Benzophenone as a photosensitizer hindered the graft polymerization; 5 The homopolymer retardant of ammonium iron sulfate hexahydrate in a proper concentration retarded the formation of homopolymers and promotes the graft copolymerization; 6 The solvent of monomer solution also affected the graft reaction. Different solvents functioned in different ways. Ethanol can promote the graft reaction because of the activity of hydrogen in its structure; 7 pH value of the monomer solution affects the polymerization rate, and a lower pH value was favorable to the graft reaction.
这些影响因素的作用分别为:1小分子单体的表面改性效果好,确定以丙烯酰胺为亲水性改性单体;2较高的单体溶液浓度有利于接枝反应;3激光能量密度增大,薄膜表面亲水性先显著增强,后又减弱;激光脉冲次数越多,改性后表面亲水性越强;4光敏剂BP对PET表面接枝聚合反应有阻碍作用;5适当浓度的均聚物抑制剂六水合硫酸铁铵能减少单体均聚物的生成,促进接枝聚合;6单体溶液的溶剂也影响接枝聚合的反应进程,不同溶剂的影响作用原理不同,含较活泼氢的乙醇能促进接枝反应;7溶液pH值影响单体聚合速率,pH值较低有利于接枝反应。
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Initiator is one of the most important reagents in the polymerization of olefin and it closely related to the polymerization rate.
引发剂是烯烃聚合的重要助剂,聚合反应速率与之密切相关;引发剂的不同直接影响聚合反应时间和聚合放热的均匀性。
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Comparing the three processes, it has been found that the semicontinuous solution polymerization runs stably and the polymerization temperature can be well controlled.
为了获得稀土催化苯乙烯聚合合成UHMWPS的合适的聚合方式,分别进行了稀土催化苯乙烯间歇本体、溶液聚合及半连续溶液聚合的研究。
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Some approved aneugens Trip terygiuwlIypogaucum (evelHutch, colchicine, thiabendazole, a tropine sulfate,d-ubocurarine was added into the reactive system respectively and the changes of their absorption values were taken down during different periods under the conditions of 37 0C and 350nm .
本研究通过多步聚合和解聚合反应从猪脑中分离纯化微管蛋白,建立微管蛋白的体外聚合和解聚合反应平衡体系,并将已证实的非整倍体诱发剂(昆明山海棠根部水抽提物、2-(4′-噻唑)苯丙咪唑、硫酸阿托品、d-筒箭毒碱)分别加入此反应平衡体系中,于37℃、350nm条件下,记录此体系不同时期的吸光值变化,与阳性对照物和溶剂对照处理平衡体系后的吸光值在相同时间点作比较,以此评估这几类非整倍体诱发剂对离体条件下的微管蛋白聚合的影响,寻求这几类非整倍体诱发剂是否可通过抑制微管蛋白聚合作用途径而诱发非整倍体。
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The paper studies AM and DAC as monomer, copolymerize a new type of cationic polymer flocculants through aqueous solution polymerization, inverse emulsion polymerization and inverse microemulsion polymerization, then studies how to improve solid content by aqueous solution polymerization, ascertain the system and kinetics of inverseemulsion polymerization and technological conditions.
本论文探讨了以AM与DAC为单体,通过水溶液聚合、反相乳液聚合、反相微乳液聚合得到新型阳离子高分子絮凝剂,研究了如何提高水溶液聚合的固含量,反相乳液聚合体系的确定、动力学研究及其工艺条件等影响因素。
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Much coagulation coul d be found to be adhered to the wall of reaction vessel and mixer when this cros slinker was used for conventional emulsion polymerization whereas coagulation co uld be greatly reduced and no obvious bulking of particle size of the product wo uld occur when this crosslinker was used for microemulsion polymerization and do sage and proportion of emulsifier wer.
将此交联剂用于乳液聚合中,若采用常规乳液聚合方法,反应器壁及搅拌上会粘附有大量凝胶;采用微乳聚合的方法并调整乳化剂用量及比例,可大大减少凝胶量,同时使产品粒径无明显粗大化现象。
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The encapsulated TiO〓 particles by polymer were obtained with soapless emulsion polymerization of methyl methacrylate in water in the presence of the pretreated TiO〓 particles.
一种是用偶联剂钛酸丁酯对亲水性TiO〓粒子进行预处理,钛酸丁酯与TiO〓表面羟基反应,交联到TiO〓粒子表面,使TiO〓粒子表面由亲水性转变为憎水性,改善无机粉体与有机单体的亲合性,再进行TiO〓存在下甲基丙烯酸甲酯的无皂乳液聚合,即可得到TiO〓-PMMA复合粒子:另一种方法是用表面活性剂对TiO〓进行预处理,再进行TiO〓粒子存在下甲基丙烯酸甲酯的无皂乳液聚合,TiO〓粒子表面可形成一层均匀的聚合物膜,提出了包覆机理,指出单体在无机粉体表面发生聚合的关键是预先在粒子表面形成聚合场所,即吸附一层表面活性剂。
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A C-C bond type radical initiator i.e. 1,1,2,2-tetraphenyl-1,2-ethanediol and a S-S bond type thermal iniferter, i.e., tetraethyl thiuram disulfide were used to consist of new reverse ATRP initiation systems TPED/FeCl3/PPh3 and TD/FeCl3/PPh3, respectively."Living"/controlled polymerizations of a polar monomer MMA and a non-polar monomer St were investigated with the initiation systems as well as other new initiation systems; behavior of vinyl polymerization with a new asymmetrical C-C bond type thermal monomeric iniferter was studied also.
前者选用C-C键型的自由基聚合引发剂1,1,2,2-四苯基-1,2-乙二醇、S-S键型的热iniferter二硫化四乙基秋兰姆组成新引发体系TPED/FeCl3/PPh3、TD/FeCl3/PPh3,研究这些引发体系引发MMA、 St聚合的&活性&/控制聚合行为,同时研究一些其他新引发体系;后者合成了一种新的非对称C-C键型热引发转移终止剂,并研究其自由基聚合规律。
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In this dissertation, two series of rare earth initiators: rare earth tri (2, 6-di-tert-butyl4-methylphenolate) and rare earth calixarene complex have been developed to ring-opening polymerize 2, 2-dimethyltrimethylene carbonate, trimethylene carbonate and ε-caprolactone at mild conditions. Both the polymerization features and mechanisms are discussed in details.
本论文为环碳酸酯、内酯的开环聚合开发了两类新型低毒性稀土催化剂:三(2,6-二叔丁基-4-甲基苯氧基)稀土配合物和对叔丁基杯芳烃稀土配合物,都可以在温和的反应条件下单组分引发2,2-二甲基三亚甲基环碳酸酯、三亚甲基环碳酸酯和ε-己内酯聚合,合成各种分子量的均聚和共聚材料,考察了催化剂结构、聚合条件等对聚合的影响,深入研究了聚合机理。
- 更多网络解释与聚合的相关的网络解释 [注:此内容来源于网络,仅供参考]
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chaperone protein:伴侣蛋白质[可与新生、未折叠、错折叠或聚合的多肽相结合]
chaperone machine 陪伴机[通过陪伴蛋白的结合保证肽链折叠、寡聚化和转运的机制] | chaperone protein 伴侣蛋白质[可与新生、未折叠、错折叠或聚合的多肽相结合] | chaperonin 伴侣蛋白
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chaperone protein:伴侣蛋白质[可与新生,未折叠,错折叠或聚合的多肽相结合]
chaperone machine|陪伴机[通过陪伴蛋白的结合保证肽链折叠,寡聚化和转运的机制] | chaperone protein|伴侣蛋白质[可与新生,未折叠,错折叠或聚合的多肽相结合] | chaperonin|伴侣蛋白
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converged:收敛的,聚合的
650conventional memory常规内存 | 651converged收敛的,聚合的 | 652convergence会聚,聚焦
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paradigmatic:纵聚合的
Paradigm 范式,纵聚合段 | Paradigmatic 纵聚合的 | Paradox 悖论
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polymeric:聚合的
polymer 聚合体 | polymeric 聚合的 | polymerization 聚合
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polymeric:聚合; 聚合; 聚合的; 聚合的
polymergenerativechemistry 高分子生成化学 | polymeric 聚合 聚合 聚合的 聚合的 | polymericadditive 聚合物添加剂 聚合物添加剂
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poi.; polym. polymer; polymeric; polymerize:聚合物;聚合的;聚合
pois. poisonous有毒的 | poi.; polym. polymer; polymeric; polymerize聚合物;聚合的;聚合 | Poly-FBA poly-1,1-dihydroperflnorobutyl acrylate聚-1,1-二氢垒氟丁基丙烯酸酯[氟橡胶]
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unconverted monomer:未聚合的单体
unconvertdr lime 未转化石灰 | unconverted monomer 未聚合的单体 | unconvertible loan stock 不能兑换的债券
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polymerized:聚合的
polymerization transition 聚合变化 | polymerized 聚合的 | polymerized diacthylene 聚合丁二炔
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polymerized:聚合的 聚合的
polymerize 聚合 聚合 | polymerized 聚合的 聚合的 | polymerizedfilter 混合滤波器