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建筑给排水工程质量管理按照工程项目实施的流程主要包括设计阶段、施工阶段、使用阶段的项目质量管理.在管理过程中应对施工流程的各个阶段质量技术要点严格控制,预防质量问题的产生,产生问题后要对管道系统及时排查,分析原因,采取措施进行处理. 相似文献
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从大学生创新性项目管理系统的需求实际出发,考虑用基于角色的权限管理模型来解决在系统中可能存在的各个角色所能拥有的权限问题。对该系统的权限管理模型进行了数据库模型设计,同时对系统运行的机理进行了简要说明。 相似文献
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工程造价控制是在满足项目合理的质量标准前提下,在项目建设的各个阶段,对工程造价进行研究比较和投资测算及控制,使建设项目的造价控制在科学合理的范围之内,在保证项目管理投资目标实现的同时,力求在各个建设项目中资金合理使用,人力、物力、财力,取得较好的投资效益和社会效益。一般来说,煤炭建设工程都具有周期长、总投资规模大、涉及单项和单位工程多、尤其受地质条件影响大等特点。因此,工程的造价确定与控制也变得更为复杂。对煤炭工程造价管理的要求也更高。煤炭工程造价管理应是一个动态的过程,并贯穿于工程建设的全过程。包括建设工程的立项决策阶段、设计阶段、招投标阶段和施工阶段。 相似文献
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建设单位对工程造价的控制就是在满足项目合理的质量标准的前提下,在投资决策阶段、设计阶段和建设项目实施阶段中把工程项目发生控制在批准的限额内,力求在各个建设项目中合理使用人力、物力、财力,取得较好的投资效益和社会效益。工程造价的控制与管理是一个动态的过程。市场经济的变化多端,使工程投资的确定与控制变得更为复杂,这就需要建设单位对工程造价的管理始终贯穿于项目的全过程,既要全面又要有侧重点。项目的实施阶段。实施阶段的工程造价管理是实施建设工程全过程管理的重点。 相似文献
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建设单位对工程造价的控制就是在满足项目合理的质量标准的前提下,在投资决策阶段、设计阶段和建设项目实施阶段中把工程项目发生控制在批准的限额内,力求在各个建设项目中合理使用人力、物力、财力,取得较好的投资效益和社会效益。工程造价的控制与管理是一个动态的过程。市场经济的变化多端,使工程投资的确定与控制变得更为复杂,这就需要建设单位对工程造价的管理始终贯穿于项目的全过程,既要全面又要有侧重点。项目实施阶段的工程造价管理是实施建设工程全过程管理的重点。 相似文献
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浅谈代建制模式下代建方对工程造价的管理与控制 总被引：1，自引：0，他引：1
工程造价管理与控制是一个动态过程,代建项目的工程造价的管理与控制贯穿于项目建设的全过程,在工程建设的各个阶段,代建方应把握工程造价管理的重点,采取切实有效地控制措施,使工程造价控制在国家批准的投资限额内。本文从工程建设的决策阶段、设计阶段、施工阶段及竣工阶段谈一谈代建制模式下代建方对工程造价的管理与控制。 相似文献
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在当今市场经济竞争激烈的形势下,房地产开发项目造价管理,已成为众多开发单位十分关注的工作内容.而项目造价管理贯穿于房地产开发建设过程的各个阶段,有效地进行项目造价管理在各个阶段有着各自的特点. 相似文献
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科学管理在工程造价中的作用 总被引：1，自引：0，他引：1
刘伟 《内蒙古科技与经济》2006,(13):103-104
建设单位对工程造价的控制就是在满足项目合理质量标准的前提下,在投资决策阶段、设计阶段和建设项目实施阶段中把工程项目资金控制在批准的限额内,力求在各个建设项目中合理使用人力、物力、财力,取得较好的投资效益和社会效益。工程造价的控制与管理是一个动态的过程。市场经济的变化多端,使工程投资的确定与控制变得更为复杂,这就需要建设单位对工程造价的管理始终贯穿于项目的全过程,既要全面又要有侧重点。实施阶段的工程造价管理是实施建设工程全过程管理的重点。工程实施阶段的工程造价管理可分为三个环节:招标管理、施工管理和结算… 相似文献
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A research group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol-a chemical found in the skins of red grapes in red wine-can improve the sensitivity of mice to the hormone insulin according to a report in the October issue of Cell Metabolism.…… 《中国科学院院刊(英文版)》2008,22(1):14-15
Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said. 相似文献
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《中国科学院院刊(英文版)》2008,22(1):2-3
CAS should stick to the principle of rendering service to, and giving impetus for, the development of China＇s science enterprise by making S＆T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party＇s Leading-member Group at CAS, which was held from 7 to 11 January in Beijing. 相似文献
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《中国科学院院刊(英文版)》2008,22(1)
With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants." 相似文献
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Marjorie Armstrong-Stassen Margaret Landstrom Ramona Lumpkin 《The Information Society》1998,14(2):153-164
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors. 相似文献
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Active biological molecules functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery disease diagnosis therapy new nanodevice construction.…… 《中国科学院院刊(英文版)》2008,22(1):22-22
Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction. 相似文献
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A joint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology his co-workers from Norway US Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells suggesting that China's projected climate warming could decrease the pest's numbers. The study was published in Proceedings of the National Academy of Sciences on September .…… 《中国科学院院刊(英文版)》2008,22(1):6-7
Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007. 相似文献
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Caroline Haythornthwaite 《The Information Society》2001,17(3):211-226
A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction. 相似文献
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Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies. 相似文献
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Leah A. Lievrouw 《The Information Society》2000,16(2):155-159
This essay focuses on universal service and the Internet as means to support social and political participation. The emphasis on access to telecommunications systems in conventional approaches to universal service is contrasted with access to content. A model of the information environment is described that accounts for the roles of content and conduit, both of which are necessary conditions to achieve true access. A method is outlined for employing information indicators to observe or measure the information environment. 相似文献
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Puay Tang 《The Information Society》1998,14(1):19-31
The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means. 相似文献