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液压凿岩机活塞新材料开发和设计质量评估 被引量:2
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作者 周梓荣 曾曙林 罗亮光 《中国有色金属学报》 EI CAS CSCD 北大核心 2000年第2期234-239,共6页
研制了一种具有Cr Ni Mo新配比的低碳合金钢作为液压凿岩机冲击活塞用材 ,与常规活塞用材进行了金相组织、静强度、热处理后的表面和断面显微硬度及工业性对比试验 ,测试了凿岩机冲击性能。结果表明 :该材料具有良好的淬透性、合理的金... 研制了一种具有Cr Ni Mo新配比的低碳合金钢作为液压凿岩机冲击活塞用材 ,与常规活塞用材进行了金相组织、静强度、热处理后的表面和断面显微硬度及工业性对比试验 ,测试了凿岩机冲击性能。结果表明 :该材料具有良好的淬透性、合理的金相组织和断面硬度分布以及较好的力学性能。 展开更多
关键词 液压凿岩机 活塞 低碳合金钢 设计质量评估
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模糊层次分析法在产品设计质量评估中的应用 被引量:1
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作者 王洪 唐晓青 《制造业自动化》 2001年第11期11-13,共3页
在对设计质量评估特点进行分析的基础上,提出在产品设计质量评估过程中应用模糊层次分析法进行评估求解。重点讨论了设计质量评估中评估递阶层次模型的构建,设计质量特征的模糊求解,设计方案评估值求解及其评估结果满意度分析。
关键词 设计质量评估 模糊集理论 层次分析法 产品设计
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面向现代产品设计的设计质量评估方法 被引量:3
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作者 唐晓青 王洪 《中国质量》 2001年第12期9-13,共5页
1.前言 在激烈的市场竞争实践中,企业逐步认识到产品的开发能力是企业的核心能力,改进产品的设计开发过程比改进产品的生产过程获得的效益更为显著[1].
关键词 产品设计 设计质量评估 指标体系 集成模型 人员 信息
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Interaction of activity involvement and recreational location selection behavior in Lowland City:A case study of public parks in Saga City,Japan
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作者 IAMTRAKUL Pawinee TEKNOMO Kardi +1 位作者 GE Jian HOKAO Kazunori 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2005年第8期900-906,共7页
Public parks provide many benefits to the community as the representatives of green area. The allocation of public places plays an extremely important role in the daily lives of inhabitants especially for recreational... Public parks provide many benefits to the community as the representatives of green area. The allocation of public places plays an extremely important role in the daily lives of inhabitants especially for recreational use that could enhance the quality of life of residents in the vicinity. To understand park users’ behavior is one of the most important prerequisites for as-sessing the participation in public service from the park users’ point of view. The pattern of park utilization on location and activity selection are important elements in behavioral study, while the public parks topograph may also influence the typical user’s be-havior. Questionnaire survey on park utilization was used to investigate the interaction between activity involvement and recrea-tional location with the use of linear discriminant analysis (LDA) model. The study found that public park users’ behavior is influenced not only by social characteristics but also by the recreational activities and their specific location characteristics. We found that about 45 percent of park visitors are local residents living within a radius of 3 km preferred travel to parks near their residential area. This implies that location selection behavior is correlated with travel distance, travel time and travel cost. Visit frequencies and on site expenditures reflect the recreation behavior for different type of activities. The overall information can be usefully applied by decision makers to launch appropriate public policy in consistence with the useful results of this study. 展开更多
关键词 Public park Park users' behavior ACTIVITY Park location
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