Reducing computer operating costs

This paper presents a cost reduction strategy for computer operating expenses. Different ratios are proposed to help decision makers in understanding the impact of computer operating cost on productivity and profitability. Computer Operating Cost Self-Assessment Checklist is provided.     

EXPERT SYSTEM FOR PRODUCT MANUFACTURABILITY AND COST EVALUATION

Product design is an important stage in the product development cycle. A large proportion of a product's cost is governed by product design. Every effort should be made to ensure a product is “rightly designed for manufacture” at the design stage in order to avoid unnecessary expenditure of time and money in production resulting from a need for redesign. An evaluation tool in the form of an expert system has been developed for product designers to assess manufacturability of product designs. This paper describes the mode of operation in the development of the expert system from which manufacturing information such as selection of processes and materials, and estimation of costs can be obtained. The system enables product designers to evaluate product design alternatives by comparing the analyzed results to come up with the optimum design which best satisfies the requirements. The developed system runs on the PC platform.     

1Cr18Ni9Ti管道焊缝背面N2保护焊接工艺

利用N2对1Cr18N．9Ti不锈钢焊缝金属影响的有利方面，通过焊接工艺评定和现场试焊，探索出氩弧焊打底、手工电弧焊填充盖面、焊缝背面以外保护的管道焊接工艺，使保护气体成本节约90％。约400道焊口RT探伤合格率达100％，验证了该工艺的可行性和经济效益。     

对防腐蚀工程造价影响较大的几个问题及解决办法

介绍了对防腐蚀工程造价影响较大的几个问题，相应的基价调整以及材差调整方法和适用范围等。     

产品结构工艺性审查的分析和探讨

产品结构工艺性审查 ,是工艺工作重要的一个环节 ,本文根据工作经验 ,就产品工艺性审查应考虑的主要内容 ,及产品制造的工艺性和经济性等方面进行了细致地分析 ,对从事工艺工作的人员具有很好的参考和借鉴作用     

降低石化设备造价和国产化的点滴具体设想

通过对多层包扎高压容器结构的分析，以及对金属表面喷涂技术和混合式换热器的介绍等，阐述了降低石化设备造价和实现国产化的途径。文中附有多层包扎容器焊接接头和混合式换热器结构等示意图。     

推行单井承包全要素造价管理 有效控制钻井成本

江汉油田钻井公司为了控制钻井施工成本,提高综合经济效益,在公司内部推行单井承包。其具体做法是,施工前,对单井下达包干成本、工期、质量、安全等考核指标;施工过程中,严格实施各项措施;施工后,经过完井结算,严考核,硬兑现。推行单井承包全要素造价管理,对公司提高精细管理水平,推进节能降耗,提高经济效益起到了重要作用。     

Control co-design of 13 MW downwind two-bladed rotors to achieve 25% reduction in levelized cost of wind energy

Wind energy is recognized worldwide as cost-effective and environmentally friendly and is among the fastest-growing sources of electrical energy. To further decrease the cost of wind energy, wind turbines are being designed at ever larger scales, which is challenging due to greater structural loads and deflections. Large-scale systems such as modern wind turbines increasingly require a control co-design approach, whereby the system design and control design are performed in a more integrated fashion. We overview a two-bladed downwind morphing rotor concept that is expected to lower the cost of energy at wind turbine sizes beyond 13 megawatts (MW) compared with continued upscaling of traditional three-bladed upwind rotor designs. We describe an aero-structural-control co-design process that we have used in designing such extreme-scale wind turbines, and we discuss how we were able to achieve a 25% reduction in levelized cost of energy for our final turbine design compared to a conventional upwind three-bladed rotor design.     

网络安全需求分析及安全策略研究

介绍网络安全与风险成本分析方法,通过量化风险成本分析得到资产安全需求,把网络划分成安全区域。最后给出安全对策建议。     

浅谈我国中小型企业在全球经济危机下的成本管理

近几年的全球经济危机导致国内中小型企业经济不断恶化,有的甚至出现倒闭。面对全球经济危机下的市场经济新形势,深化中小型企业成本管理的改革也日益成为一个突出而又迫切的问题。本文介绍了中小型企业成本的基本概念以及对企业发展的影响,分析了我国中小企业成本管理存在的问题,探讨了我国中小型企业成本管理的途径,指出了在市场经济条件下,降低成本是中小型企业经营管理的重点,增收节支、创造利润最大化是企业的最终目标。