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农村公路是我国公路网的主要组成部分.其里程约占全国通车里程的四分之三。随着我国农村公路建设的快速发展,农村公路交通安全的重要性问题日益突出,其中最重要的问题之一,就是公路交通安全设施的规划和建设有待完善。 相似文献
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LI Fang-yi 《上海交通大学学报(英文版)》2005,10(4):402-406
Green design and manufacturing is a proactive approach to minimize wastes during a product's design stage, thus preventing future environmental impacts. Current modular design method mainly focuses on product functional and manufacturing issues. In this paper, a theoretical scheme of multi-objective modularity analysis for discrete electromechanical product design was proposed. Product physical architecture was represented by a fuzzy graph, where fuzzy relationships contain environmental objectives and influence module formulation. Finally the optimal product modules combining all objectives can be searched by clustering algorithm. 相似文献
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农村公路是我国公路网的主要组成部分,其里程约占全国通车里程的四分之三.随着我国农村公路建设的快速发展,农村公路交通安全的重要性问题日益突出,其中最重要的问题之一,就是公路交通安全设施的规划和建设有待完善. 相似文献
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