FOXPRO低级文件功能用户数据保密系统研究

介绍用ＦＯＸＰＲＯ数据库管理系统的低级文件功能对基于ＦＯＸＰＲＯ的应用系统的数据库文件进行加密和解密的原理及建立用户安全系统的方法，这种安全系统可以为用户提供可靠的安全保护。     

Measurement of creep of optical fiber by a low coherent white light double interferometer system

The creep properties of optical fiber used in fiber optical sensors were studied in this paper.A low coherent white light double interferometer system was designed and calibrated and the creep deformations of optical fibers under static and cyclic loadings were measured with this device.The research results showed that polymer coated optical fibers crept at the beginning when they were under static or cyclic load.As the number of the cyclic loading or the static loading times increased the creep tended to s...     

浅谈大型民用建筑中供配电系统的设计

阐述了大型民用建筑中供配电系统的设计问题,包括变配电所的设计、负荷的计算、无功功率的补偿、高(低)压配电系统的设计及短路电流的计算。     

HgCdTe薄膜的液相外延生长及低温热处理

ＨｇＣｄＴｅ材料是一种重要的红外探测器材，用液相外延长的ＨｇＣｄＴｅ薄膜是目前制造光伏焦平面器件的主要材料。     

浅议居住分异和混合居住

针对居住分异是社会发展的问题,目前在我国已越来越明显,论述了混合居住的推进可有效控制居住分异,促进社会融合,促进城市社会和谐发展。     

我国绿色技术贸易发展现状及对策研究

通过分析进行绿色技术贸易的背景、绿色技术贸易的内涵以及我国绿色技术贸易发展的现状,在此基础上提出了一些对策建议。     

低比转速离心叶轮内部流动的数值计算

针对目前准三维方法在低比转速离心叶轮的流场计算中的结果不太令人满意的现实情况 ,将奇点分布法用于该领域的计算 ,并经实例计算验证了该方法的可行性 ,且在计算过程中显示出该方法的简单、快捷和结果精确程度高的特点     

Slack-nibbling battery-aware task scheduling

Dynamic voltage scaling (DVS) is an efficient approach to maximize the battery life of portable devices. A novel overall planning strategy (OPS II) balancing slack supply and demand for DVS is proposed. An OPS II-based slack-nibbling overall planning strategy (SNOPS) algorithm is also proposed, which iteratively nibbles slacks for appropriate tasks selected by an overall planning dynamic priority function to perform DVS until the slack is exhausted and an optimum voltage setting is obtained. For a high-load task set, SNOPS manages to recover battery overload while maintaining schedulability. For random variable-load task sets, SNOPS achieves a saving of 29.51% battery capacity on average, the suboptimal gap is 27.84% narrower than that of our previously proposed OPS-based algorithm, and 92.10% narrower than that of the algorithm proposed by Chowdhury et al. Results indicate that OPS II manages to save battery to various extents while maintaining schedulability, and demonstrates good load compatibility and close-to-optimal performance on average. Biography: GAO Xun(1981–), male, Ph.D. candidate, research direction: embedded system, power optimization.     

寒冷地区低温地板辐射采暖工程设计

通过工程设计实例，介绍了寒冷地区低温地板辐射采暖的设计方法，构造措施和材料使用，并对低温地板辐射采暖与传统的散热器采暖方式进行了经济性比较。     

高校生物实验室低值易耗品的管理问题及对策

高校生物学实验室低值易耗品具品种多、数量多、类型杂的特点，也是学校资产管理的薄弱部分。对低值易耗品管理的不善容易造成物资的积累浪费，将直接影响实验室相关工作的正常开展，对其加强管理是必需的。文中从低值易耗品的管理存在的困难和问题进行分析，并探讨了解决办法。