滑动径向轴承轴心轨迹的可视化及其应用

讨论了轴承 转子系统的非线性动力分析 ,由此计算轴心轨迹 ,并研制开发了滑动径向轴承轴颈轨迹数值实验软件系统。能指导设计人员预先了解轴承的运行状态 ,从而提高了滑动轴承和机械产品的设计质量和效率 ,在应用中具有很强的实用性。     

Development of an integrated wireless sensor network micro-environmental monitoring system

Wireless Sensor Network (WSN) is increasingly popular in the field of micro-environmental monitoring due to its promising capability. However, most systems using WSN for environmental monitoring reported in the literature are developed for specific applications without functions for exploiting user's data processing methods. In this paper, a new system is designed in detail to perform micro-environmental monitoring taking the advantages of the WSN. The application-oriented hardware working style is designed, and the system platform for data acquisition, validation, processing and visualization is systematically presented. Several strategies are proposed to guarantee the system capability in terms of extracting useful information, visualizing events to their authentic time are also described. Moreover, a web-based surveillance subsystem is presented for remote control and monitoring. In addition, the system is extensible for engineers to carry their own data analysis algorithms. Experimental results are to show the path reliability and real-time characteristics, and to display the feasibility and applicability of the developed system into practical deployment.     

数字化超声自动检测系统研究

讨论超声检测数字化的特点,建立以多通道超声卡为核心的检测模型。结合五轴超声检测机器人,对控制系统进行运动学分析,给出曲面检测探头相对基础连杆坐标系的转换矩阵。在超声检测系统中引入超声数据可视化的概念,并从几何方法、颜色方法以及准三维成像等几个方面进行详细分析。     

地层三维建模及OpenGL下三维可视化研究

地层三维重构及其三维可视化对地质信息的获取和地质解释具有十分重要的意义。对地层模型的三维重构进行了研究,提出了一种基于TIN的地层建模方法,有效地实现了地层模型的三维重构。该建模方法实现简单,构模速度快,适用范围广,并在OpenGL三维图形库下,实现了地层模型的三维可视化。     

矢栅一体化的三维地形可视化研究

三维地形可视化是三维GIS中的一个重要功能。由于传统的地形可视化仅仅考虑了三维地形的真实显示,因此忽略了GIS中对空间数据的分析功能,文章探讨了适合在三维地形上矢量栅格数据一体化显示的方法,使用空间插值的方法在栅格纹理上叠加矢量图形。矢量数据的加入为在三维地形上进行空间分析提供了可能性。笔者将该方法应用于荆江地区的三维地形显示,取得了较好的效果。     

虚拟农业体系结构的研究

本文通过对国内外虚拟农业的研究分析，在总结前人研究的基础上，认为虚拟农业是应用虚拟现实技术和可视化技术，在计算机和Internet的支持下，对农业生产、科研、教学、加工、销售等各个环节在计算机上的模拟和再现，以实现农业生产的高效益和可持续发展为目的的技术系统，从而指出虚拟农业既是一个系统平台，也是一种研究方法和手段，并应建立起完整的技术理论体系。提出了虚拟农业的技术支撑体系和体系结构。阐述了虚拟农业的应用前景和重要意义。     

Detection of spatio-temporal conflicts on a temporal 3D space system

It is critical to detect the spatio-temporal conflicts in a project schedule, since many construction conflicts occur due to constraints in construction space and unavailability of intermediate functions of the in-progress building. This paper introduces a temporal 3D space system modelling method using a COmponent State network CEntric Model (COSCEM) to integrate such project aspects as product, process, space, and intermediate functions. Based on COSCEM, a 3D CAD model can be transformed into a temporal 3D space system. The concept of ‘existence vector’ and the Boolean logic operations are defined for depicting and deriving the dynamic characteristics of project entities. The procedures for detecting spatio-temporal conflicts are also presented. A case study of moving a truck crane on an excavated access road is selected to illustrate the proposed spatio-temporal detection methodology.     

Visualization method for customer targeting using customer map

An important issue in customer-oriented marketing area is target selection which enables the determination of potential customers. In this paper, we suggest a novel customer targeting method: customer map for a service industry. The customer map is the visualization method for customer targeting. It depicts value distribution across customer needs and customer characteristics. To develop the customer map, we integrate numerous customer data from various data sources, perform data analyses using data mining techniques, and finally visualize the information derived by the former analyses. The customer map helps decision makers to build customer-oriented strategy under the unified goal of customer targeting. It also affords to monitor and perceive real time state and the change of customer value distribution based on their information without preconception. We apply the customer map to a credit card company, build web-based prototype system for the customer map and acquire managerial implications from this study.     

Linking learning goals and educational resources through interactive concept map visualizations

Concept browsing interfaces can help educators and learners to locate and use learning resources that are aligned with recognized learning goals. The Strand Map Service enables users to navigate interactive visualizations of related learning goals and to request digital library resources aligned with learning goals. These interfaces are created using a programmatic Web service interface that dynamically generates interactive visual components. Preliminary findings suggest that these library interfaces appear to help users stay focused on the scientific content of their information discovery task, as opposed to focusing on the mechanics of searching.