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991.
文章分析了濉溪县中小河流治理存在问题及规划的必要性和紧迫性,提出了治理对策。 相似文献
992.
《Cities》2014
The paper discusses the cumulative aspects of flexible planning’s engagement with massive public–private (PP) development ventures, tracing five ventures in Tel Aviv–Jaffa and analyzing each as a link in a chain of planning precedents. As in many other instances that materialized in this city, each venture was based on a spot-zoning elaboration of a planning deal that balanced cost and benefits for PP agencies. In each test case, public benefits and properties were bargained and official policies were modified. Neo-liberal policies have escalated planning flexibility, linking local multi-spot zoning with extreme luxury and increasingly high buildings. However, as citizens’ criticism progressively questioned the legitimacy of PP planning, a judicial debate is now taking place concerning the definition and function of spatial planning. Focusing this debate and the urban planning tradition that led to it are proposed here as a way of evaluating the concrete assets of urban PP planning today. 相似文献
993.
本文从批判的角度对城市发展的价值导向、城市交通系统内部各子系统之间的定位关系以及对城市与交通规划中部分重要理念的认识进行了解析,剖析了交通拥堵等城市病的产生在规划层面的原因,并对规划方法提出了建议。 相似文献
994.
如何改善商务区的可持续发展是一个重要的课题。本文着重研究了商务园区的设计方法以及一个可持续的商务园区的特征。通过介绍悉尼和英国的两个商务花园案例,分析了商务花园的可持续设计。 相似文献
995.
笔者根据多年工作经验,首先对城乡规划设计现状及存在的问题进行了分析,然后对加强城乡规划设计的有效途径控制进行了简要阐述。 相似文献
996.
《Measurement》2014
The integration research of measuring machine and CAD information, just CMM/CAD integration technology, is far behind the information integration of mechanical processing and CAD. With the rapid development of information integration industry and in the manufacturing process of the parts with complex curve surface, it is crucial to integrate the measurement and machining procedures based on IGES as that IGES is a general ANSI standard of information exchange for CAD/CAM among different computer systems. The measuring path planning determines the realization of measuring each sampling point and the completion of all sampling points safely and effectively by using measuring equipment. Based on IGES in this paper, the calculation method of normal direction at the location of sample point is studied for different surfaces, so as to improve the measuring precision. Then the calculation strategy for the positioning points and the measuring range is established, and the identification method for the topological relation between surfaces is also researched for improving the measuring efficiency and security. At last, the measuring sequence of the sampling points to be planned reasonably based on TSP is given. It is believed that the research results can provide some useful contributions towards the development of automated inspection task planning and systems, especially for coordinate measuring machines. 相似文献
997.
建设资源节约型社会,是我国家实现可持续发展的战略决策。目前,我国建筑能耗占全国总能耗的1/4,且逐年在增加,全面的建筑节能迫在眉睫。因此,规划设计是建筑节能中最重要的一步。 相似文献
998.
电力规划在城市建设规划中占的地位很重要,不仅保障了城市供电系统的正常运行,而且优秀的电力规划对于城市建设经济成本的节约也有一定作用。因此为了保障整个城市建设规划的良好进行,电力规划工作必须完成好。 相似文献
999.
Nanjiang Chen Hongyu Luo Min Wan Jean-loup Chenot 《Journal of Materials Processing Technology》2014,214(10):2049-2058
Though engineers are not advised to utilize riveted joints in tension, rivets will inevitably bear tensile load in realities. Hence, it is interesting to investigate the failure modes of riveted joints when they are under tensile load. Following previous studies (Chen et al., 2011), in this work, the authors selected three sizes of riveted joints to conduct the riveting and tension processes experimentally and numerically. Three kinds of failure modes including pull through, shank breaking, and head breaking were observed. Simulations are able to give almost the same results as those from experiments. Furthermore, three formulas were proposed to calculate the maximum tensile strength of riveted joints. Though the values calculated from these three formulas are approximate, they have the same order of magnitude as real ones. Moreover, they could be utilized to estimate which kind of failure mode may take place when riveted joints were under tensile load. 相似文献
1000.
车站建筑群作为轨道类交通体系中的一部分,具有城市代表性,它是城市基础性建筑。要把车站建筑工程与其他基础性工程视为同等重要的工作来考虑。在逐步完善和优化资源配置的过程中,最终建设与这个城市发展配套的现代化交通轨道衔接体系。 相似文献