基于GIS的龙口市泳汶河流域地貌形态定量分析

地形因子是最基本的自然地理要素,也是对人类的生产和生活影响最大的自然要素。精确的地形地貌因子分析可为经济发展、农业规划、水土流失、工程建设等研究提供有力的数据支持。应用GIS工具,对龙口市泳汶河流域作了坡度、坡向等4方面研究性的分析,得出了比较准确的数据。     

基于GIS的全国油气管道安全管理信息系统设计

管道安全风险评估源于对管道多种信息的收集、存储和加工处理，为此开发了一套全国油气管道安全管理信息系统。介绍系统中根据管道统计信息绘制和维护管线地理图形的3种方法以及管线分段多种属性信息的管理方法，并对大跨度管线图形绘制以及MapX在节点编辑模式下易引发应用系统崩溃的情况提出了有效的处理措施。应用VB+MapX模式开发的应用系统已经被用户实际使用，得到充分 肯定。     

基于OpenGL和地形图支撑下的地形三维显示

以吉林省汪清林业局金仓林场为研究区域,利用地形图丰富的高程信息,在Are/info、R2V等软件的支撑下生成DEM数据,并以此为基础在面向对象软件Visual C 下利用OpenGL生成了林场的三维立体图形,并能用交互方式实现图形的旋转、缩放。     

我国草地遥感技术应用研究进展与前景展望

在掌握了国内外草地遥感部分最新研究成果和参加多项科研项目研究基础上,重点论述了遥感技术在草地科学中应用的必要性、近年取得的主要研究成果和进展,并对其应用前景做了简要展望。     

DEM与空间叠加分析在土地定量评价中的研究

以湖北省建始县为例，研究了海拔、坡度和坡向与该区农业生产条件的关系，建立了土地适宜性评价模型。在MapGIS支持下，该文综合应用数字高程模型（DEM）及空间叠加分析技术实现了该模型在土地适宜性评价中的应用。实践表明，该数字化定量评价方法所得的结果与实际情况相符，具有高效、准确和可视化的特点，可为政府决策提供支持。     

轨道交通综合监控系统中实时GIS技术的实现

针对轨道交通综合监控系统具有子系统设备多、安全性和实时性要求高、数据量大等特点,为实现设备的实时监控,提出在综合监控系统中嵌入实时GIS管理系统的方案。分别对GIS系统嵌入轨道交通综合监控系统的系统框架、技术实现和实时功能实现等方面进行了研究。实践证明,集成实时GIS技术提高了综合监控系统对设备的管理能力,保障了轨道交通的安全稳定运营,发挥了系统的最大效率。     

Integrating scientific modeling and supporting dynamic hazard management with a GeoAgent-based representation of human–environment interactions: A drought example in Central Pennsylvania, USA

Recent natural disasters indicate that modern technologies for environmental monitoring, modeling, and forecasting are not well integrated with cross-level social responses in many hazard-management systems. This research addresses this problem through a Java-based multi-agent prototype system, GeoAgent-based Knowledge System (GeoAgentKS). This system allows: (1) computer representation of institutional regulations and behavioral rules used by multiple social institutions and individuals in cross-level human–environment interactions, (2) integration of this representation with scientific modeling of dynamic hazard development, and (3) application of automated reasoning that suggests to users the appropriate actions for supporting cooperative social responses. This paper demonstrates the software architecture of GeoAgentKS and presents such an integrated approach by modeling the drought management processes in Central Pennsylvania, USA. The results show that it is possible to use GeoAgentKS to represent multilevel human–environment interactions and to use those interactions as input to decision making in hazard management.     

GIS在水电枢纽工程运行管理中的应用

介绍了GIS(地理信息系统)在水电枢纽工程运行管理中的设计与应用,详细论述了数字电厂模型的建立以及设计目标、设计思路和功能设计。以及GIS在数字电厂中的使用方法,如数据输入及更新、图形处理、图形漫游、属性查询、统计分析等。     

通信管道地理模型的设计与实现

基于面向对象GIS建模技术提出了一种有效的通信管道地理模型,并且在Maplnfo平台通过MapBasic编程完全实现。该模型不仅满足视觉要求,而且设计的用户操作简便、易用,为实现对市话管线资源的高效、可视化管理提供了一条有效的途径。     

园区管网信息管理与监控系统研究

将地理信息系统（GIS）技术、数据库技术、网络通信技术应用于开发基于园区的水、电、暖、天然气等管刚监控与管理系统，可以为管网系统提供一个直观的、实时的、量化的信息平台。该文通过研究管网信息管理与监控系统的需求，给出了其所涉及的关键技术和数据模型，从而构建一种通用的园区网信息管理与监控系统模理，使特定的系统可以在此基础上进行定制。     

Design and implementation of a GIS system for planning

Geographic information system (GIS) provides a flexible and efficient general platform for planning and analysis, especially when large amounts of ever changing spatial information is dealt with. It helps managing the change in an economical and sustainable way. We decided to build a GIS to help in data management and in the dynamic planning process of our developing university, Al-Balqa' Applied University (BAU). In this paper, we present the GIS system, which we built for the campus of BAU and the customization of the needed software to help in decision-making and planning processes. Moreover, the output of our project is web enabled so that it can be used in the web site of Al-Balqa' Applied University as a web GIS application.     

黑龙江省双城市土壤有机质和速效养分的空间变异特征

采用地理信息系统(G IS)和地统计学相结合的方法研究了黑龙江省双城市土壤表层(0~20 cm)有机质、速效氮、速效磷、速效钾这4种土壤养分指标的空间变异性。结果表明:土壤有机质、速效氮、速效钾的理论模型均为球状模型;速效磷的理论模型为指数模型。速效钾含量的C0/(C0 C)为49.96%,存在中等的空间相关性,说明其空间变异是由随机性因素和结构性因素共同作用的结果;速效氮、有机质、速效磷含量的C0/(C0 C)变化范围是8.10%~14.39%,均表现出强的空间相关性,说明其空间变异均受结构性因素的影响。从总体分布趋势来看,4项养分指标均呈现出由西向东、由西南向东北升高的趋势。     

GPRS/Web-GIS在GPS车辆定位导航系统中的应用研究

就GPS车辆定位系统数据传输问题,对GPRS通信链路性能进行了分析,提出一个基于GPRS通信平台,利用Web-GIS实现车辆定位导航信息分布式发布的功能框架;就GIS信息在GPRS移动终端上的无线发布实现作了进一步探讨,提出了相应解决方案。仿真实验取得较好效果。     

钢铁企业销售物流管控系统开发研究

以某钢铁企业物流管理公司车船监控系统研发为背景,全面总结了在运输作业单跟踪和系统集成等方面取得的各项成果,分析了钢铁企业销售物流管控自动化需求,提出了由数据层、应用层和表现层构成的系统逻辑结构,以及由通讯服务器、应用服务器和数据库服务器组成的系统框架结构,给出了系统实现的主要关键技术和客户端主要功能,其中C/S客户端的...     

SOA架构在辽河流域报表管理系统的研究与实践

报表服务是辽河流域水环境相关管理系统中核心业务需求之一.随着水环境治理范围扩大,报表服务需求多样化,现有分散式报表管理方式已不能满足用户实际需求.对此,从异构系统中报表实际业务需求出发,结合SOA架构模型松散耦合与可重用性等特点,提出了一种基于SOA架构的报表管理系统.解决了多系统之间重复开发与数据共享等问题.本文通过对报表业务核心功能及流程的提炼,建立了相应的服务模型,根据对不同服务的组合和调用,实现了支持多系统并发访问的报表管理系统.     

Dimensional reduction of 3D building models using graph theory and its application in building energy simulation

Since the various people involved in the design process for a building project tend to hold conflicting views, this inevitably leads to a range of disparate models for planning and calculation purposes. In order to interpret the relevant geometrical, topological and semantical data for any given building model, we identify a structural component graph, a graph of room faces, a room graph and a relational object graph as aids and explain algorithms to derive these relations. We start with a building model by transferring its geometrical, topological and semantical data into a volume model, decomposing the latter into a so-called connection model and then extracting all air volume bodies and hulls of the model by means of further decomposition into elementary cyclic connection components. The technique is demonstrated within the scope of building energy simulation by deriving both a dimensionally reduced object model required for setting up a thermal multizone model and a geometrical model for defining single or multiple computational fluid dynamic domains in a building together with incidence matrices correlating these models. The algorithm is basically applicable to any building energy simulation tool.

具有捕食策略的混合随机优化算法及其多极值函数优化

SAGACIA是一种混合随机优化算法,该算法虽已吸收了模拟退火算法、遗传算法和趋化性算法的优点,但搜索过程中仍存在收敛速度慢以及采用固定步长影响搜索精度的缺点,而捕食搜索策略通过限制的调节能较快锁定最优区域,从而提高收敛速度。结合两者的优缺点,提出一种具有捕食搜索策略的自适应调整步长SAGACIA算法,改进后的算法通过捕食搜索策略平衡了算法的局域搜索和全局搜索,提高了收敛速度;邻域搜索采用自适应步长,避免了最优解附近的震荡,提高了搜索精度。实验仿真结果表明,改进后的SAGACIA算法具有较快的收敛速度和较高的寻优精度,证明了算法改进的有效性和可行性。     

Assessing pre- and post-deformation in the southern Arava Valley segment of the Dead Sea Transform, Israel by differential interferometry

Differential radar interferometry, using archived ERS data over the region of the Dead Sea Transform, allows to detect ground movement (subsidence or uplift) in playas within the southern Arava Valley segment of the Dead Sea Rift. These measurements are consistent with a mean displacement rate of about 0.4 cm/month, in the direction of the radar beam, during the 8-month period preceding the Nuweiba earthquake of 22 November 1995. In the 3 years following the earthquake, the measured rate was smaller by a factor of 10. These movements are not related to salt diapirs or water pumping activities in the area. The exact location, along faults, suggests a possible correlation with pre-seismic and post-seismic fault deformation.A simple fault model consistent with the observed phenomena associates the observed subsidence/uplift to right and left stepping en-echelon fault patterns related to inter-seismic tensional accumulation along the faults. Further observations are necessary on this site and similar fault areas to corroborate the correlation between seismic activity and the observed phenomena. Monitoring of these sites should continue with differential Global positioning system (GPS) measurements and radar interferometric analysis using Envisat and Radarsat as well as archived data (including J-ERS).     

Improvement of risk assessment in the FMEA using nonlinear model,revised fuzzy TOPSIS,and support vector machine

In every organization, performing accurate risk assessment along with consideration of increasing accidents is a necessary tool to prevent and reduce the fatal and non-fatal consequences of their occurrence. One of the most popular methods of risk assessment is Failure Mode and Effects Analysis, which evaluate failure modes in a system by using risk priority numbers (RPNs). These methods have been criticized for including several deficiencies such as the effect of personal ’opinions, the same importance of the factors and risk rating. The present work utilizes a hybrid approach based on support vector machine and fuzzy inference system to decrease the effect of personal's opinions in determining the factors of the severity and occurrence. Also, Logarithmic Fuzzy Preference Programming is used to determine the crisp weight of dependent factor of FMEA and revised fuzzy TOPSIS used for more accurate ranking of risks. One main feature of the proposed model is that it can be used to evaluate safety risks in all organizations. To investigate the suitability of this approach, the proposed model was presented in the Copper leaching factory, Kerman, Iran. The results showed that this model has the ability to predict severity and occurrence refers to occupational accidents which occurred in a 5-year period (2012–2017) with accuracy of 87% and 95%, respectively. Also, based on the results, it was found that the weights of severity, occurrence, and detection were 0.479, 0.335, and 0.186, respectively. Results of the ranking process showed that the risk of fall from height and stucking between the objects had the highest and the lowest priority, respectively.     

炼化企业生产计划优化软件RPMS的应用研究

首先介绍了炼化企业的计划制定流程，并对国内计划优化软件的使用进行了分析总结；对RPMS软件的功能进行了说明，并对软件内部数据进行了分析。通过进行案例分析对RPMS软件在计划优化方面的功能进行研究说明，得出RPMS软件是完全能够满足国内炼化企业生产计划优化的需求。能够在日益激烈的国际市场竞争中提升企业的市场竞争力和企业的经济效益。