土地划区分级督察信息系统设计

结合国家土地督察西安局<青海省土地划区分级督察试点研究>项目,从国家土地督察业务的实际需求出发,以数据库技术、地理信息系统空间分析等技术手段为基础,遵循标准化、实用性、先进性、开放性、技术成熟性、安全性等系统建设原则,探讨了以省级为单位的土地划区分级督察信息系统的建设,以提升土地督察现代化.     

集成型地籍管理信息系统的设计与探讨

传统的地籍管理手段已无法满足日常地籍管理的需要,构建一个城乡管理一体化、地籍管理和电子政务管理一体化的集成型土地管理工作环境是现代地籍管理发展的方向.详细讨论了集成型地籍管理信息系统的设计目标,并在此基础上探讨了系统的总体结构、功能设计及网络结构体系,为统筹城乡地籍管理工作提供参考.     

基于集成信息化平台的过程质量控制系统研究

通过对改进、提升产品实物质量的关键技术的深刻阐释和分析,创建了一个由若干核心技术有效整合而成的信息化质量控制平台.文章就该平台系统在质量控制中所发挥的作用进行研究与探讨.     

江苏省农业气候资源区划

利用江苏省70站1971～2008年的气象资料,采用多元回归方法,建立江苏省气候资源的空间模型;利用GIS系统,根据气候资源的空间模型,制作出江苏气候资源图,结合区划指标,将气候资源图进行叠加分析,得到江苏农业气候区划图,并为农业发展方向提出建议.     

谦比希铜矿数字信息化集成管理系统建设

数字信息化是建设安全高效矿山的趋势,不仅可有效提高矿山生产管理水平,也是目前形式下提高矿山效益的途径。西方发达国家矿山的数字信息化建设发展较为成熟,在对芬兰Kemi矿、Kittila金矿和普哈萨拉米矿山进行考察的基础上对其信息化建设进行了分析研究,阐述了信息化建设的关键技术,包括数字矿山建设、矿山设备生产作业系统、各职能部门的信息化管理和信息化建设的难点,包括生产管理信息化和信息集成,并对谦比希铜矿东南矿体数字信息化建设提出了思路与对策。     

基于ITIL 的矿山综合信息化运维管理模式研究

近年来,随着科技的快速发展,矿山技术装备水平明显提高,数字化建设不断深入。数字信息技术不仅改变了传统的矿山生产工艺和组织管理模式,而且极大地提高了矿山企业的生产效率和安全水平,为矿山可持续发展打下了坚实的基础。为了维护矿山信息系统的稳定运行,在总结并分析焦家金矿信息运维工作的成功经验以及所面临的形势和现状的基础上,指出矿山信息系统运维工作存在的不足,并提出基于ITIL 的矿山综合信息化运维管理模式,该方案在焦家金矿的运用实践中取得了较好的实施成果,值得类似矿山借鉴。     

Stochastic Asset Pricing with Seismic Hazard Risk

Since cash flow of asset in the long run is generally subject to economic fluctuation, and also to potential damage due to seismic hazard risk, asset pricing is more relevantly evaluated, provided that uncertainties of both cash flow and seismic risk are properly taken into account. This study will propose a discounted cash flow method to evaluate asset pricing, in which incomes gained from asset are modeled as a Markov process and seismic loss is modeled due to only one earthquake event during the service time. A numerical example is demonstrated for an 11 story steel reinforced commercial building considering the service time of 50 years. Various risk–asset price curves are numerically obtained in the form of probability of excess versus asset price with discount rate as a parameter for cases with and without earthquake loss taken into account, and for a case in which earthquake strengthening measure is implemented. These curves contribute information to decision makers in charge of risk and investment management.     

Seismic Displacement of Slopes Reinforced with Piles

The seismic stability of slopes reinforced with a row of piles is analyzed using the kinematic theorem of limit analysis within the framework of the pseudostatic approach. An existing method which is based on the theory of plasticity is used to determine the lateral forces provided by the piles. Expressions for calculating the yield acceleration coefficient are derived. Then, based on Newmark’s sliding block concept, the permanent displacement induced by an earthquake shocking can be calculated by the integrals of seismic records. An example is investigated to illustrate the validity of this method and the effects of piles on a restraining slope’s dynamic deformation.     

Seismic Analysis of Structures with Viscoelastic Dampers

Viscoelastic dampers are being used in structures to mitigate dynamic effects. The models of varying complexities from simple maxwell element to differential models with fractional and complex order derivatives have been used to represent their frequency-dependent force deformation characteristics. More complex models are able to capture the frequency dependence of the material properties better, but are difficult to use in analyses. However, the classical models consisting of assemblies of Kelvin and/or Maxwell elements with an adequate number of parameters can be formed to capture the frequency dependence as accurately as the more sophisticated fractional derivative models can do. The main advantage in adopting these classical models is a simpler and smaller system of equations, which can be conveniently analyzed for nonlinear and linear systems. In this study, the two classical mechanical models consisting of Kelvin chains and Maxwell ladder are used. It is shown that these mechanical models are as effective as the fractional derivative model in capturing the effect of the frequency dependence of the material properties in response calculations and are more convenient to use in dynamic response analyses.     

铝合金轮毂企业集成制造信息系统研究与开发

汽车铝合金轮毂制造业是典型的复杂零件先进制造技术应用行业,制造信息具有信息结构复杂、过程变化快、响应要求迅速,集成化需求高等的特点,制造信息的质量与速度决定着流动资金的量、在制库存、订单周期及产品利润,因此研究与开发其集成制造信息系统具有现实意义。在阐述行业背景与信息化概况的基础上,对制造信息系统的需求进行了分析,然后给出了其基于网络的系统开发模式和系统功能结构,并详细设计了制造信息系统的信息关联模型,最后介绍了原型系统的企业推广应用。