查询词典 trophic level

Especially since 1994, Xi'an High-tech Zone of the composite indicator has been ranked 53 in the forefront of state-level high-tech zones has been named National Advanced High-tech Zone; 2001, Ministry of Science and Technology in Xi'an High-tech Zone has been classified as "15" During construction of the five countries, one of the Model High-tech Zone, Xi'an and was elected as members of the public votes "Ten twenty-first century Xi'an historic event," one; December 2002, Xi'an High-tech Zone by United Nations Industrial Development Organization study finds for six,"China's most dynamic cities and regions", one of …… After more than a decade of construction and development, Xi'an High-tech Zone in western China to become the most popular, the environment the best, one of the fastest growing region, and Hailed as "the ninth Guanzhong King."

特别是自1994年以来，西安高新区的综合指标一直位居53的前列国家一级高新区已被命名为全国先进高新区； 2001年，科学和技术部在西安一个高新区已被列为"十五"期间建设的五个国家之一，示范高新区，西安，当选为市民投票"十大二十一世纪西安历史活动，"一个； 2002年12月，西安高新技术产业开发区由联合国工业发展组织研究发现6，"中国最具活力的城市和地区"之一……经过十多年的建设和发展，西安高新区在西部成为中国最流行的，环境是最好的，增长最快的一个地区，被誉为"关中第九景"。

Secondly, it try to set up a evaluation system of the equipment manufacturing industry, and use multi-level composite evaluation indicator to analysis the competitiveness of the equipment manufacturing industry from equalization and quantization. It includes the effectiveness of competitiveness, the scale of competitiveness, and scientific and technological innovation competitiveness.

第二构建装备制造业评价体系，运用多层次综合指标评价法，从效益竞争力、规模竞争力和科技创新竞争力三方面对陕西省装备制造业竞争力进行定量评价及定性分析。

In recent years, has introduced a nano-titanium dioxide containing inorganic antimicrobial Ag-Cu nano powder materials, products by DAYANG, Anhui Provincial Health and Epidemic Prevention Station, such as the detection of authoritative department, in a composite indicator that the leading domestic level.

几年来，先后推出了纳米二氧化钛、载银铜无机抗菌粉等纳米材料，产品经中科大、安徽省卫生防疫站等权威部门的检测，认定综合指标处于国内领先水平。

Each level of analysis yields information essenti-al to the final composite portrait of human nature that psychologists hope ulti-mately to develop.

每个级别的分析产量信息essenti铝最后综合肖像的人性的心理学家希望ulti - mately发展。

At first, the hydrologic characteristics of estuary region and the current research situation about consistency correction for hydro-sequence and composite probability for tidal level and wave are elaborated.

论文首先阐述了河口地区的水文特性、水文序列一致性修正的研究现状及潮位与波浪组合频率计算的研究现状。

To regulate policy composition and guarantee its correctness, an algebraic model called APoCA (attribute-based access control policy composition algebra) is proposed for composing access control policy. In APoCA, an authorization relation between entities is described at the attribute level. APoCA fertilizes the existing formal frameworks by taking into account the computation of attribute values.

为了规范策略合成和保障策略合成正确性，基于属性刻画了实体间的授权关系，通过属性值的计算结构扩展了现有的策略合成形式化框架，建立了新的基于属性的策略合成代数模型APoCA(attribute-base access control policy composition algebra)。

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。

The worth a view of the different level of moral qualities core in the main factor composition.

不同类型不同层次的价值观都是人们品德要素中的核心成分。

Such an alleged increase in the organic composition of capital will, at the same real wage and r* level,necessarily depress the rate of profit.

在资本的有机构成中这个所谓的增长，在相同的实际工资水平和r*水平时，将必然地降低利润率。

To gauge the explanation power of these interpretations, we study the level of capital flows , the composition of capital flows and the nature of crises in emerging markets countries.

我们通过资本流动规模、资本流动的构成以及新兴市场国家发生危机的性质三个方面来考察以上三种理论对于新兴市场国家的解释力。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。