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几何过程与最优保修策略关系研究 被引量:2
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作者 贾积身 《河南科学》 2003年第6期784-786,共3页
针对不能"修复如新"单部件保修系统,提出了一种新的按比例保修和免费保修策略,并利用几何过程分别考察了顾客和商家关于产品的长期运行平均费用.
关键词 保修系统 几何过程 顾客 企业 效益 风险
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以技术改革创新 促保修管理进步
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作者 梁洪顺 高晓玲 《城市公共交通》 2003年第5期35-35,36,共2页
关键词 汽车保修 技术改革 技术创新 管理制度 单车核算体系 人员结构优化 保修系统 保修管理
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办公自动化设备报修管理系统的开发及应用 被引量:4
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作者 任兵 《计算机光盘软件与应用》 2014年第4期144-145,共2页
随着科学技术水平的不断提高,办公自动化程度也越来越高,加强对办公自动化设备保修管理系统的研究,开发一套高效便捷的报修管理系统成为当务之急,尤其机关事业单位必须应用一套高效的报修管理系统,保证设备故障及时得到解决,恢复正常办... 随着科学技术水平的不断提高,办公自动化程度也越来越高,加强对办公自动化设备保修管理系统的研究,开发一套高效便捷的报修管理系统成为当务之急,尤其机关事业单位必须应用一套高效的报修管理系统,保证设备故障及时得到解决,恢复正常办公。本系统终端采取浏览器,基于WEB服务器,通过应用服务器,向数据库服务器进行数据传输,实现设备报修的流程化、标准化、规范化控制。 展开更多
关键词 办公自动化设备 保修管理系统 开发与应用 机关单位
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A Critical Examination of the European Standard EN 1504 "Products and Systems for Protection and Repair of Concrete Structures"
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作者 Cecilia Bartuli Ramen Clgna +1 位作者 Osvaldo Fumei Teodoro Valente 《Journal of Civil Engineering and Architecture》 2012年第2期226-231,共6页
The European Standard EN 1504 "Products and systems for protection and repair of concrete structures -- Definitions, requirements, quality control and evaluation of conformity" can be considered a real milestone for... The European Standard EN 1504 "Products and systems for protection and repair of concrete structures -- Definitions, requirements, quality control and evaluation of conformity" can be considered a real milestone for the companies involved in the rehabilitation of buildings, bridges, piers, pipelines, and other civil or industrial concrete structures. However in some cases the examination and, even more, the practical application of the proposed guidelines are made difficult by a complicated sub-division in principles and methods, and by a confusing and repetitive layout. The paper deals in particular with the principles and methods for the rehabilitation of concrete damage due to reinforcement corrosion, often strictly connected, anyway, to those adopted in order to rehabilitate the concrete itself. Suggestions are given for a possible future update of the Standard, based on the personal experience of the Authors. 展开更多
关键词 Concrete repair maintenance PROTECTION European standard sustainability.
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Research on Ecological Protection and Restoration Measures in Altay Region based on the Coupling Perspective of the Mountains-Rivers-Forests-Farmlands-Lakes-Grasslands System 被引量:9
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作者 LI Yi LIU Yujie +3 位作者 ZHANG Qiang ZHU Sufeng LIU Hao LIU Shufang 《Journal of Resources and Ecology》 CSCD 2021年第6期791-800,共10页
The adoption of both Nature-based Solutions(NbS)and a system perspective is a hot issue and an area in which there is much room for improvement in ecological protection and restoration.The study takes Altay region as ... The adoption of both Nature-based Solutions(NbS)and a system perspective is a hot issue and an area in which there is much room for improvement in ecological protection and restoration.The study takes Altay region as an example,an area located in Xinjiang,China,which is an important ecological corridor of the national key functional area and the core area of the Belt and Road but has a fragile ecological environment and needs much enhancement in ecological protection and restoration.Guided by the concept of"mountains-rivers-forestsfarmlands-lakes-grasslands(MRFFLG)system is a life community",the coupling relationship of the various MRFFLG elements,the main ecological environmental problems and the integrated countermeasures for protection and restoration in Altay region have been analyzed in this study.The study shows that Altay region has a typical meta-ecosystem of mountain,oasis,and desert,and the connections by rivers and lakes make the ecosystem links within the region much closer.The interweaving of resource-environmental-ecological issues of the aquatic ecosystem,degradation of the quality of terrestrial ecosystems such as forests,grasslands and farmlands,the increased ecosystem fragmentation and ecological risks are the major ecological environmental issues in this region.This study takes the improvement of the ecosystem health and function in Altay region as the core goal of regional ecological protection and restoration.First,we establish a zoning governance pattern from the perspective of ecosystem integrity;second,we design governance strategies for different zones with the goal of synergistic improvements in the ecosystem functions;and finally,we clarify the key engineering tasks in different zones from the perspective of ecosystem services.Ecological conservation and restoration of the MRFFLG system is a prime example of the application and development of NbS in China.This paper constructs an analytical framework for identifying regional life communities,diagnosing ecological protection and restoration of zoning problems,and proposing classified solutions for ecological protection tasks for the protection of the MRFFLG system.This research will enrich the theory and technology for the protection and restoration of MRFFLG systems,and provide guidance for the practice of ecological protection and restoration in Altay region. 展开更多
关键词 mountains-rivers-forests-farmlands-lakes-grasslands life community coupling relationships ecological protection and restoration systematic management Altay region
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