1－6MeV的~7Li离子在固体C、Al、Cu、Ag、Au和Pb薄膜中的阻止本领

报道了１—６ＭｅＶ的７Ｌｉ离子在固体Ｃ、Ａｌ、Ｃｕ、Ａｇ、Ａｕ和Ｐｂ薄膜中的阻止本领的测量结果。数据误差小于６％。     

内循环厌氧反应器的研究进展

内循环厌氧反应器是在UASB反应器的基础上发展起来的第三代厌氧生物反应器。文章介绍了内循环厌氧反应器的结构和工作原理,对内循环厌氧反应器水力模型、颗粒污泥性能、反应器启动及产甲烷菌的理论研究和应用做了阐述,提出了存在的问题,并对其研究发展方向进行了展望。     

基于EPICS/MATLAB图像处理的光束位置测量系统

介绍了利用光学方法对上海同步辐射光源X射线光束位置进行实时测量以及对光斑图像进行动态分析的硬件结构和软件系统的设计方法。阐述了系统软件的功能,描述了图像面积、中心点位置等参数测量的方法,以及测量系统在上海同步辐射光源(SSRF)光束线线站上的应用结果。     

珠三角城市群饮用水水源地水质现状及对策措施研究

文章分析了珠三角城市群饮用水源地的水质现状及其成因,并分别从饮用水源地保护区划分、水源地水质保护、水源地保护区管理、水源地保护工程措施和饮用水水源地监控体系等方面给出了饮用水源地水质安全保护的对策措施,最后提出了实施分质供水是解决珠三角供水问题,保障珠三角供水安全,特别是饮水安全的重要途径之一。     

EPICS data archiver at SSRF beamlines

The control system of SSRF(Shanghai Synchrotron Radiation Facility)is based on EPICS(Experimental Physics and Industrial Control System).Operation data storage for synchrotron radiation facility is important for its status monitoring and analysis.At SSRF,operation data used to be index files recorded by traditional EPICS Channel Archiver.Nevertheless,index files are not suitable for long-term maintenance and difficult for data analysis.Now,RDB Channel Archiver and MySQL are used for SSRF beamline operation data archiving,so as to promote the data storage reliability and usability.By applying a new uploading mechanism to RDB Channel Archiver.its writing performance is improved.A web-based GUI(Graphics User Interface)is also developed to make it easier to access database.     

Spectral splitting of high order harmonics of ionizing gases irradiated with ultrashort intense laser pulses

The spectrum of harmonics generated and propagated in ionized noble gas has been analyzed using one-dimensional wave propagation equation. The result shows that the spectral lines of harmonic become broadened and then split into two peaks when the laser intensity is strong enough to ionize the noble gas. The influnence of laser parameters and gas pressure on the splitting has been made clear.     

关于园林绿地三大指标的探讨

在人与自然和谐相处的观念日益成熟的今天。城市绿地率、城市人均公共绿地、城市绿化覆盖率，这三大项是衡量城市绿化水平的主要指标，应达到保证城市生态环境的要求。探讨我国现行城市园林绿化三大指标与先进国家相比普遍偏低，不能满足城市生态建设的最低限度；在统计三大指标时，还有统计对象的框定不够全面、具体，以至存在统计数据与实际情况不符。