地下水渗流场可视化方法与应用研究

渗流场是反映地下水位与运移时空动态特征的有效形式,水位红线是对地下水开采严格管控的重要指标。从地下水渗流的流线绘制、流速计算、流场种子点与终止点选择、流线追踪4个方面论述了孔隙地下水渗流场可视化算法,设计了一种新的种子点布局方法表征地下水渗流场,采用改进的EULER方法实现流线的可视化表达。并将地下水渗流场空间分异性和水位红线进行融合与叠加分析,基于地下水渗流场从2D的视角揭示地下水的开采强度与超采程度的空间分布特征,自动圈定地下水超限采的区域范围。可为地下水的合理开采方案与地质管理保护措施的制定提供空间辅助决策支持。     

Visualizations of Mercury Methylation and Dynamic Transformations by In Vivo Imaging

Visualization of Hg(II) and MeHg in their native contexts is significant for examining mercury poisoning, while it is challenging because of indistinguishable fluorescent (FL) signals during FL imaging. Herein, visualizations of mercury methylation and dynamic transformations of Hg(II) and MeHg are achieved in living biological systems. Well distinguishable FL responses (blue emission for Hg(II), yellow emission for MeHg) are obtained by a double‐response FL probe (DPAHB) without any interference. As demonstrated by experimental and computational studies, the distinguishable signals are attributed to selective binding with DPAHB and different inhibition of excited‐state proton transfer. Through control tests for live‐dead markers, mercury methylation is demonstrated to be employed in living biological systems. Therefore, the methylation and dynamic transformations of both ions are monitored in zebrafish by imaging, and these results are confirmed by traditional high‐performance liquid chromatography‐based methods. The methylation of Hg(II) to MeHg, dynamic transformations and final accumulations of both species in zebrafish tissues are visualized successfully. This method is also convenient for fast evaluation of detoxification reagents. This is the first visualization of in vivo mercury methylation and dynamic transformation of both species and is effective for studying pathological processes in their native contexts.     

Application of multivariate statistics and 3D visualization analysis in tacit knowledge diffusion map

Tacit knowledge is an important factor for enterprises and institutions to enhance their knowledge innovation and value-added capabilities, and it is also a basic link to enhance organizational learning capabilities. With the development of technology, the dissemination of tacit knowledge has increasingly shown complex and dynamic trends. In order to make the tacit knowledge in the enterprise better circulate and generate greater economic value, therefore, this paper proposes a study on the diffusion map of tacit knowledge based on multivariate statistics and 3D visualization analysis. First of all, this paper analyzes the internal relationship between organizational learning and organizational tacit knowledge integration and organizational tacit knowledge innovation, and combines multiple statistical methods to propose an organizational tacit knowledge integration method based on tacit knowledge management. Secondly, we combine 3D visualization and generative confrontation network methods to analyze the data of tacit knowledge dissemination, and visualize the distribution of knowledge dissemination in three dimensions. In the simulation experiment test, this paper reveals that the spreading efficiency of tacit knowledge in the network is affected by related factors. Through this model, we hope to explore the behavioral laws of different types of nodes in the network and propose effective countermeasures to improve the efficiency of knowledge dissemination.     

A digital-twin visualized architecture for Flexible Manufacturing System

The new generation of industrial 4.0 intelligent manufacturing system consists of Human-Cyber-Physical System (HCPS), integrating human with cyber and physical systems. In manufacturing, a digital-twin visualization architecture is to solve the human-machine interaction problem that concerns digital-twin modeling on the Cyber-Physical (C-P) side and on the Human-Cyber side. Although there are many related research and applications, there lacks attention in terms of full life cycle functional services and lightweight architecture. This paper presents a general architecture of digital-twin visualization for flexible manufacturing systems (FMS). How the digital-twin C-P modeling of multi-source heterogeneous information can be described is investigated and how the 3D visualized human-machine interaction with digital-twin scenario information is explored in the proposed architecture. Besides, the visualization method of high-value information, relating to the life cycle planning, design, debugging and service stages, is studied and discussed thoroughly. Also, a digital-twin modeling concept of "Geometric information (G)-Historical samples (H)-Object attribute (O)-Snapshot collection (S)-Topology constraint (T)" (GHOST) is proposed, and methods for developing virtual digital-twin scenes architecture are presented. Based on the proposed modeling concept of GHOST for digital-twin, prototypes have been developed for the general platform of digital-twin RESTful services and the cross-platform general visual mock-up software. Experimental results show that this method is effective in the FMS lifecycle in various aspects.     

基于BIM+GIS的大坝安全监测信息可视化展示技术研究

为了解决传统大坝监测信息三维可视化程度低,展示不够直观、形象等问题,采用BIM+GIS技术,将监测信息展示从传统二维空间拓展到三维空间。对BIM建模、模型轻量化、三维可视化展示以及系统功能设计进行了研究,通过在桃源水电站的应用实例表明,BIM+GIS技术能够实现大坝安全监测信息三维可视化展示,展示效果更为形象、生动,具有广泛应用前景。     

虚拟战场环境的导弹可视化仿真设计

主要对多模复合制导仿真平台中的导弹视景仿真模块的实现方法进行了研究,介绍了仿真模块的组成,研究了三维物体建模的方法并讨论如何实现动态演示。对基于VC＋＋以OpenGL编程建模仿真和采用Creator、Vega实现作战导弹飞行可视化这样两种方法,概括阐述了其实现过程,并进行了分析比较,得到了适用于导弹飞行仿真控制的设计方法,对于其它场景下三维物体仿真具有一定的借鉴作用。     

三维地学建模的技术方法

对多种资料分析后认为，三维地质体普遍存在，随着信息发展，三维地学建模已引起地球科学界的高度重视，目前国内外已研制出了多种三维地学建模软件，并被广泛应用到地学的各个领域，地学三维建模理论体系和技术方法日趋成熟；对三维地学建模的空间插值技术、三维可视化技术、虚拟现实技术及地理信息系统技术作了重点阐述。     

AVS数据可视化技术对微形地貌模拟初探

简要阐述了微形地貌模拟的意义及数据采集方法，并通过AVS 技术对采集到的模拟数据进行三维可视化，有利于海底矿产资源开采的一些理论上的研究。