基于CorelDRAW与Origin联合应用的制图方法研究

实验结果的图形表达是现代科技交流的主要手段之一. 为使所绘制图形能符合科技期刊规范化出版要求, 探讨了联合应用CorelDRAW和Origin的制图方法. 根据相关图形的特点, 运用Origin软件的数据处理和图形输出功能, 结合CorelDRAW软件的矢量化特点以及某些特性功能, 方便快捷地绘制出符合规范的期刊插图, 并通过实例证明了这是一种简易的制图方法, 可有效地提高期刊的出版质量和效率.     

VB与Matlab混合编程探讨

介绍了VB与Matlab混合编程的方法。充分利用VB编程简洁、开发界面友好等特点和MATLAB强大的数据计算和分析、图形处理功能．开发出复杂的、界面友好人机交互处理软件。     

Cubature Formula for Spherical Basis Function Networks

Some mathematical models in geophysics and graphic processing need to compute integrals with scattered data on the sphere. Thus cubature formula plays an important role in computing these spherical integrals. This paper is devoted to establishing an exact positive cubature formula for spherical basis function networks. The authors give an existence proof of the exact positive cubature formula for spherical basis function networks, and prove that the cubature points needed in the cubature formula are not larger than the number of the scattered data.     

Acceleration method for computer generated spherical hologram calculation of real objects using graphics processing unit(Invited Paper)

Graphics processing unit （GPU） based fast calculation method for computer generated spherical hologram （CGSH） of a real-existing object is proposed. Three-dimensional （3D） point cloud is constructed by capturing a real-existing object from multiple directions using a depth camera. The GPU based calculation is used in both hologram generation part and numerical reconstruction part of the CGSH. The improved calculation efficiency is verified by comparing the computation speed between central processing unit （CPU） based and GPU based imDlementation.     

MATLAB在大学物理实验中的应用

MATLAB是一种集数值计算和图形处理等功能于一体的工程计算应用软件．由于它的语言经过简单学习便能掌握和使用,在欧美各高等院校,MATLAB已成为本科生、硕士生、博士生必须掌握的基本软件．作为工科院校,我们在一年级学生开设的大学物理实验课程中就尝试引人MATLAB,要求学生初步学会MAT—LAB语言,能编写简单的程序对物理实验数据进行处理,并运用最小二乘法画出准确的拟合曲线．     

基于GPU的Hartree-Fock与密度泛函算法及程序

基于图形处理单元(GPU)的算法和程序为解决量子化学中的计算瓶颈开辟了道路.作者设计了基于GPU的量子化学算法和程序,实现了Hartree-Fock方法和密度泛函理论中双电子排斥积分计算、Fock矩阵构造以及交换相关泛函的计算.由于计算内核使用OpenCL编程框架,程序可以在多种架构的计算设备上执行.对于不同计算模块和分子自洽场计算的测试表明,基于OpenCL的GPU程序相比CPU上的串行程序实现了最快148倍的加速.     

Quasi-real-time simulation of rotating drum using discrete element method with parallel GPU computing

Real-time simulation of industrial equipment is a huge challenge nowadays. The high performance and fine-grained parallel computing provided by graphics processing units (GPUs) bring us closer to our goals. In this article, an industrial-scale rotating drum is simulated using simplified discrete element method (DEM) without consideration of the tangential components of contact force and particle rotation. A single GPU is used first to simulate a small model system with about 8000 particles in real-time, and the simulation is then scaled up to industrial scale using more than 200 GPUs in a 1D domain-decomposition parallelization mode. The overall speed is about 1/11 of the real-time. Optimization of the communication part of the parallel GPU codes can speed up the simulation further, indicating that such real-time simulations have not only methodological but also industrial implications in the near future.     

可视化技术在量子力学中的应用

科学计算可视化是近年来迅速发展的一个新兴领域。介绍了一个量子力学可视化系统ＶＩＳＱＵＭ，讨论了一些量子力学的可视化手段和技术。     

Advances in the light field displays based on integral imaging and holographic techniques(Invited Paper)

Light field displays comprise three-dimensional （3D） visual information presentation devices capable of providing realistic and full parallax autostereoscopic images. In this letter, the recent advances in the light field displays based on integral imaging （II） and holographic techniques are presented. Several advanced approaches to demonstrate the light field displays including viewing angle enhancement techniques of the II display, a fast hologram generation method using graphics processing unit （GPU） and multiple WRPs, and a holographic microscopy to display the living cells are reported. These methods improve some important constraints of the light field displays and add new features.