科学与工程计算可视化的进展

1 历史背景 科学与工程计算可视化(Visualization in Scientifie ＆ Engi-neering Computation),也称为科学视算。它是伴随着高性能计算机在科学与工程计算应用领域发展而兴起来的一种高技术。例如,美国的Los Alamos 国家实验室是世界上最早(五十年代)把计算机应用于热核武器科学与工程计算的单位,同样,也是把数值解析结果进行可视化最早的。所以,在某种意义上说。

三维数据域可视化体绘制中的色彩合成新方法

在科学视算的研究中，目前各种直接绘制三维数据域的方法，都是运用合成算子线性递推地合成各个象素的色彩。本文提出一种新方法，将色彩合成由线性递推的纵向合成变为二维面（虚拟面）上简单的分布合成。新方法在合成色彩时省去了线性递推方法中所需的乘法运算。更有意义的是，当此方法与三维数据域体绘制的投影成象方法结合时，利用已形成的虚拟面，可以方便地生成大小不同的可视图，而不必重复进行投影操作。本文同时证明了，在一定精度内，放大了的图象反映了在相应精度下具有插值效果的可视信息。

完备优势,走向成功——HP产品介绍

1993年度,世界工作站市场增长了7％,但HP工作站营业额的增长率达到了24.6％,成为五大工作站厂商增长最快的公司。在DataPro所进行的工作站用户调查中,HP的HP9000 700系列被选为最佳工作站产品,HP工作站取得如此业绩,原因有三点:产品系列的全面完善,性能价格比的飞速增长,服务及支持的完美保障。如今,无论是在商用的桌上排版、金融服务、信息管理或是在科学技术的机械、电子、建筑、软件设计、地理信息、科学视算等等领域,处处都可以见到HP各种类型不同型号的工作站及相关产品的应用。

Method for Signals Detection in Single Crystal Diffraction Patterns through a Diffraction Pattern Indexing Software

The correct use of information in science and technology is very important for its progress. Nowadays, the equipment used for the scientific and technological development provides results that are later interpreted by the researchers, in most of the above mentioned equipment the results are images full of information which has to be analyzed. A powerful stage with multiple benefits in this field is the image pre-processing by means of intelligent systems, which are capable to do image analysis throwing very useful results that enhance the scientific and technological information. There are currently more than 500 functions in the computational vision specialized open source library OpenCV, which associated with the C＋＋ programming language. These functions are used for application development in many areas of computer vision such as products inspection, medical images, safety, user＇s interfaces, camera calibration, stereoscopic vision and robotics. In this development and research work, by using the available functions and modifying the exposed methods, we present a proposal for signal detection in images originated in the transmission electron microscope （known as diffraction patterns）, which are attached to the detailed analysis of crystalline structures used in the study of the materials science, the results show a profit of at least 18% in the detection of signs by means of the method proposed in this work.

Theoretical Research on Novel Data Mining Algorithm based on Fuzzy Clustering Theory and Deep Neural Network

With the progress of computer technology, data mining has become a hot research area in the computer science community. In this paper, we undertake theoretical research on the novel data mining algorithm based on fuzzy clustering theory and deep neural network. The focus of data mining in seeking the visualization methods in the process of data mining, knowledge discovery process can be users to understand, to facilitate human-computer interaction in knowledge discovery process. Inspired by the brain structure layers, neural network researchers have been trying to multilayer neural network research. The experiment result shows that out algorithm is effective and robust.

三维设计——面向产品开发的有力武器

近年来计算机技术的飞速发展,推动了设计方法及观念的不断变革,其中三维建模技术、三维渲染、三维动画技术的崛起及成熟给轻武器设计师带来了全新的视野。例如,可以在新枪方案设计阶段绘出真实感极强的三维彩色照片;用科学视算的动画技术模拟多头弹的终点效果;或是模拟多管转膛武器的全自动射击过程。因此,现今的设计师。