上海推进“城中村”改造研究

改造"城中村",有利于改善居民居住生活质量,促进城乡统筹发展;有利于盘活存量用地,推进土地的节约、集约利用;有利于改善城乡形象、推进宜居城市建设。上海进一步推进"城中村"改造,须加强领导,推进"城中村"改造的体制机制建设;要均衡各方利益,调动政府、开发商和农民三方的积极性;要摸清底数,对纳入全市统一改造计划内的"城中村"实行目录管理;要因地制宜,针对各个"城中村"不同的情况进行分类指导;要突破创新,建立、健全支持"城中村"改造的政策体系;要营造氛围,形成有利于推进"城中村"改造的良好外部环境。     

双液注浆锚管加固在渗水软弱围岩浅埋偏压隧道中的应用

通过乌坑坝隧道北京端左线冲沟地段的施工实例，介绍渗水软弱围岩浅埋偏压隧道地表双液注浆锚管加固的施工方法，并对加固效果及其优缺点进行分析．     

特区移民文化建构探析

移民文化在特区经济发展中有着举足轻重的作用。实证分析结果表明，外来人口在常住人口中的比例与特区经济发展成正比。大量的外来人口除了直接参与经济建设贡献力量外，并形成移民文化推动本土文化重构更新，促进经济的发展。文章就如何吸引外来人口，进行文化重构，提出了若干建议。     

On Second-Order A-, D- and E-Minimax Designs for Estimating Slopes in Extrapolation and Restricted Interpolation Regions

Summary

The concepts of D-, A- and E-minimax optimality criteria of designs for estimating the slopes of a response surface are considered for situations where the region of interest may not be identical to the experimental region. Optimal second-order designs are derived for the situation where the experimental region and the region of interest are both hyperspherical with a common centre. The dependence of the optimal design on the relative sizes of the regions is investigated. Further, the perfomance of designs optimal for one region in estimating slopes in other regions is also examined.     

Sensitivity studies of air scattered neutron dose from particle accelerators

Sensitivity analysis of air scattered neutron dose at several distances from a particle accelerator with respect to shield thickness and neutron yield distributions has been carried out. We illustrate the successful use of Response Surface Methodology in studying the behaviour of the sensitivity coefficients for main effects and interaction terms. A comparison of the full six factor design and the orthogonal Central Composite Design has been made. The overhead shield is found to be the most sensitive parameter followed by the high energy part of the neutron energy distribution.     

民事诉讼的和谐机理与制度重构

诸多民事诉讼制度都有助于社会的和谐与稳定.然而我国现有一些民事诉讼制度并未切实有效地发挥这一机能.在和谐社会建构这一时代主题下,应进一步改革和完善我国现有民事诉讼制度,进而充分实现和发挥其有助于社会和谐稳定的内在机能.     

基于DirectX的气象雷达实时显示技术研究

提出了一种在Windows操作系统下的图像实时显示新型方法,该方法充分应用DirectX的更好的兼容性和更有效的图形加速特性,使用多缓存区进行图像数据存储、实时插值和边缘平滑处理、绘画和页面翻转的技术.以上技术使得气象回波的PPI和RHI显示更逼真地复现了天气的实时变化情况,并且显著地改进了系统的实时处理性能.实验结果证明了使用该技术的有效性和可行性.     

新型水泥混凝土路面修补材料的研究现状与展望

通过对水泥混凝土路面损坏原因的分析，阐述路面修补材料的性能要求，说明路面修补材料在国内外 的研究现状及存在的问题，提出新型水泥混凝土路面修补材料的发展方向．     

碱改性高岭土的吸油性能研究

利用NaOH浸提高温煅烧的高岭土,考察了碱的浓度、碱与高岭土的比例、反应温度和反应时间等因素对高岭土改性后吸油性能的影响,采用DTA-TG、XRD、BET、SEM、TEM等方法对碱改性高岭土的性能进行测试。实验结果表明,3 mol/L NaOH以碱土比6 mL/g在90℃下处理高岭土2h后,所得改性高岭土的吸油值大幅度提高,这归因于碱改性高岭土后平均孔径得到提高,孔分布更为集中,孔洞数量和比表面积大大增加。     

Construction of New Three-Level Response Surface Designs

Response surface methodology is widely used for developing, improving, and optimizing processes in various fields. In this article, we present a method for constructing three-level designs in order to explore and optimize response surfaces combining orthogonal arrays and covering arrays in a particular manner. The produced designs achieve the properties of rotatability, predictive performance and efficiency for the estimation of a second-order model.