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盘锦至海城高速公路通信系统建设的主体系结构
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作者 陈平 白一凡 《辽宁交通科技》 2003年第6期41-42,共2页
探讨了盘锦至海城高速公路通信系统建设的主体系结构。
关键词 交通工程 高速公路 通信系统 主体系结构 时钟同步系统 紧急电话系统
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基于耦联分析的二次结构动力反应 被引量:3
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作者 万鸣 张铁军 《世界地震工程》 CSCD 北大核心 2014年第1期114-118,共5页
以数值积分法为动力计算方法,在耦联计算主附结构体系动力反应的基础上,分析了二次结构质量、刚度、阻尼比及其所处楼层对其动力反应的影响。研究表明,二次结构与主体结构非共振时,其质量增加、所处楼层增高使其动力反应增大。二次结构... 以数值积分法为动力计算方法,在耦联计算主附结构体系动力反应的基础上,分析了二次结构质量、刚度、阻尼比及其所处楼层对其动力反应的影响。研究表明,二次结构与主体结构非共振时,其质量增加、所处楼层增高使其动力反应增大。二次结构与主体结构共振时,其动力反应明显增大;其质量增加使其最大相对位移减小,最大绝对加速度增大,其所处楼层增高使其动力反应增大。此外,二次结构阻尼的变化对其动力反应几乎无影响。 展开更多
关键词 结构体系 动力反应 耦联分析
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采用IMS体系结构的网络演进与价值探讨
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作者 何海涛 《广西通信技术》 2005年第3期21-23,共3页
IMS(IP多媒体子系统)标准为提供IP话音和多媒体业务确定了通用体系结构。本文分析了通信市场的发展趋势和社会需求,描述了IMS体系结构、功能,并以业务为导向,向全IP网络的演进。
关键词 网络 主体系结构 IMS 演进 价值
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Revolutionary Objects: Pure Forms and Disorder in Ivan Leonidov's Work 被引量:1
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作者 Frangois Blanciak 《Journal of Civil Engineering and Architecture》 2014年第2期135-142,共8页
This paper analyzes compositional strategies of Russian avant-garde architecture from the 1920s and 1930s through the study of the work of Ivan Leonidov (1902-1959), one of the leading and most prolific architects o... This paper analyzes compositional strategies of Russian avant-garde architecture from the 1920s and 1930s through the study of the work of Ivan Leonidov (1902-1959), one of the leading and most prolific architects of this movement. In this study, Leonidov's work is located within its predominant architectural context, and his work is interpreted not only as a reaction against the domineering principles of classicism, but as an evolution and selective continuation of key concepts directly translated from architectural academism. The issues of the use of pure forms--a radical stance at odds with the commonly accepted morphologies of that era--associated with the principles of displaced symmetry, or disorder, are closely looked at and evaluated against both their architectural and political values within the context of post-revolutionary Russia. It is argued that the characteristic of weightlessness in his large-scale planning proposals is revelatory of a particular desire to invade space with political presence, thus demanding to reconsider the relation between space and architectural objects. Parallels are also drawn from French Revolutionary architecture, and from the work of Claude-Nicolas Ledoux in particular, whose search for purity and autonomy in architectural morphology preceded that of Soviet architecture. As Leonidov's legacy mainly consists of drawings of buildings that never got built, his influence can often be felt in the work of other architects which until today have drawn formal elements and compositional strategies from his relatively vast volume of un-built work. 展开更多
关键词 Ivan Leonidov CONSTRUCTIVISM design theory.
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Relationship of Stakeholders in Protected Areas and Tourism Ecological Compensation: A Case Study of Sanya Coral Reef National Nature Reserve in China 被引量:4
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作者 CHEN Haiying HE Linsi +2 位作者 LI Peng ZENG Xiaohong YOU Changjiang 《Journal of Resources and Ecology》 CSCD 2018年第2期164-173,共10页
The first step to defining the rights,responsibilities and interests of stakeholders and constructing a compensation mechanism is to identify the stakeholders and clarify their mutual relationships.Nature reserves are... The first step to defining the rights,responsibilities and interests of stakeholders and constructing a compensation mechanism is to identify the stakeholders and clarify their mutual relationships.Nature reserves are complex ecosystems involving nature,the economy and society.There exists a conflict between the public welfare benefits of ecological conservation and the private gains to be realized from social and economic development.There also exist in a nature reserve complex relationships among stakeholders,involving the utilization of ecological resources,ecological conservation and ecological-economic interests.The introduction of tourism brings substantial changes to the existing stakeholder benefit structure in a nature reserve.The implementation of tourism ecological compensation(tourism payment for ecological service)is a process for redefining the distribution of rights,responsibilities and profits among stakeholders and it is also an essential way to balance the interests of the stakeholders.This paper uses a case study of Sanya Coral Reef National Nature Reserve in China to examine the characteristics of stakeholders and analyze their interests.According to the method for defining basic attributes proposed by Mitchel and other scholars,in cases of tourism ecological compensation,stakeholders can be classified as definitive stakeholders,expectant stakeholders and latent stakeholders.This paper applies these classifications and then analyzes the relationships between the rights and responsibilities of these stakeholders and how these change after the implementation of compensation.Additionally,based on the impact compensation has on different stakeholders,changes in the relationships can be analyzed and the structure of the stakeholders can be modelled.This case study of the Sanya Coral Reef National Nature Reserve illustrates the operationalization of a new mechanism for tourism ecological compensation.The paper illustrates a method for coordinating the relationships among the stakeholders involved with this national-level nature reserve. 展开更多
关键词 tourism ecological compensation (TEC) STAKEHOLDER benefit structure of stakeholders Nature Reserve Sanya Coral Reef National Nature Reserve (SCRNNR)
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