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From getting fire by drilling the wood to nuclear power, from Euclidean Space to Riemann Space, from description of the macroscopic and low-speeded movement in Classical Mechanics to the statistical wave functions description of microscopic and high-speeded movement in Quantum Mechanics, the innovation progress of Physics is just as always.
从钻木取火到核力发电,从欧几里德空间到黎曼空间,从经典力学对宏观低速物体的直观认识到量子力学对微观客体的波函数统计描述,物理学一如既往地在不断创新当中。
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The mRNA of pituitary glands from seven important economic Pleuronectiformes fishes was extracted,the cDNA sequences of GH gene were then isolated from Cleisthenes herzensteini,Limanda yokohamae,Pleuronichthys Cornutus,Cynoglossus robustus,Platichthys bicoloratus, Zebrias zebra and Paralichthys dentatus with RT-PCR method by using designed specific primers based on the reported GH cDNA sequences of Pleuronectiformes. The results of sequencing showed that lengths of the above cDNAs are as follows: 479 bp,564 bp,519 bp,440 bp,564 bp,440 bp and 522 bp.The GH cDNA sequences encode mature polypeptide of about 140 to 170 amino acid.The full-length growth hormone cDNAs of Paralichthys lethostigma and Scophthalmus maximus were cloned by Switching Mechanism At 5\' end of the RNA Transcript RACE technology.
从7种重要鲽形目经济鱼类——高眼鲽、黄盖鲽、木叶鲽、宽体舌鳎、石鲽和条鳎、夏鲆的脑垂体中提取mRNA,并采用RT-PCR方法,根据已克隆得到的鲆鲽鱼类生长激素基因的保守性序列设计特异性引物,克隆了含开放阅读框的生长激素(Growth Hormone,GH)cDNA序列,测序结果显示,高眼鲽、黄盖鲽、木叶鲽、宽体舌鳎、石鲽、条鳎和夏鲆的GH cDNA长度依次为479 bp、564 bp、519 bp、440 bp、564 bp、440 bp和522 bp,编码140-170个氨基酸的成熟GH多肽片段;从漠斑牙鲆和大菱鲆脑垂体中提取mRNA,利用SMART-RACE技术建立脑垂体cDNA文库,并从该文库中克隆出大菱鲆和漠斑牙鲆生长激素基因cDNA全长序列。
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Preferably the amount of colorant in the etch-resistant ink is from 0.01 to 4 parts, more preferably from 0.1 to 3 parts and especially from 0.1 to 2 parts by weight.
最好在etch中的着色剂数量耐油墨是从0.01至4部分,从0.1到3件以上,最好,尤其是从0.1到2重量部分。
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From the point of view of the need, fulfilling environmental responsibility is an inevitable requirement of the Sustainable Development Concept and the Scientific Development Concept. From the point of view of the possibility, the rise of Communitarianism will play a catalytic role on the implementation of environmental responsibility.
如果从宏观层面进行理论划分的话,环境责任观念是责任伦理的组成部分;从必要性的角度看,履行环境责任是可持续发展观与科学发展观的必然要求;从可能性的角度讲,共同体主义的兴起将对环境责任的落实将起到促进作用。
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At the same time, the thesis explains the inherence of urban community and city by absorbing the practical experiences of western developed countries, discusses the positive meaning of theory of architecture programming to the development of urban community. Some advices were raised in the ways of urban design; community planning and house design, then the result was gained as the main performance of the thesis. The expectation of the thesis is that the result of the study can provide some ideas and methods contributing to the development of urban community.
同时论文从国外城市居住社区的开发建设经验对我国的启示,分析阐述了居住社区作为城市建设的基本单元及其与城市的内在联系,从综合的角度探讨了建筑策划理论对于城市居住社区开发建设的积极意义,初步从城市设计、社区规划以及住宅设计和管理等方面提出一些原则和对策,以此作为本论文的最终成果,并期望能对城市居住社区的开发建设提供一些思路和方法。
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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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We can see that the former research mainly concentrated on creativity, marketing and the brand analysis, most of them were from a subjective angle; and the research from the content analysis angle to make the thorough discussion was so few.
从以往的研究可以看到,关于房地产广告的研究主要集中在对房地产广告个案的创意探讨、营销和品牌的分析,大多是从一种较主观的角度来看问题;而从内容分析的角度对具体的广告内容做深入探讨的研究颇为冷寂,且分析的内容不够全面和细致,变量的设置过于简单。
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The study of basic theory on economic crime has undergone a proceSs from emptiness to substance,from macro to concreteness,from scatter to system.
经济犯罪的基础理论研究经历了从空泛到实在,从宏观到具体,从零散到系统的过程。
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That the scandal was less, in these backwoods, than we might at first suppose seems to be suggested from the incredibly violent language which the reformers used with regard to these unfortunates, lurid and horrific to a degree; from the universality of the evil in every country of Christendom; and from the long campaign of a century and more, when so many good men needed to give so much of their lives to the restoration of the Church's normal ideal of clerical continency.
该丑闻较少,在这些backwoods ,可能比我们先假设似乎是建议从难以置信的暴力语言,改革者用来对这些不幸的,耸人听闻的可怕的程度;从普遍性的邪恶在每国家的基督教,以及从长期运动的一个世纪多的,当这麼多的好男人需要给予这麼多的生命,恢复教会的正常理想文书
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By academic analyzing, it is concluded that two order discrete paraxial approximation formula of the paper, multiple transmitting formula and polynomial extrapolation formula are the different forms of continuous paraxial approximation formula, so they are with nearly equivalent precision and stability and with equivalent applicability and limitation.
据此文献[3]将傍轴近似公式归结为一类从特定的无限域模型导出的人工边界条件,并且提出了新的从一般无限域模型导出的具有普适性的、称为"多次透射公式"的局部人工边界条件。那么,是否也可以从一般无限域模型导出具有普适性的傍轴近似公式呢?
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。