Mathematics and Computer Graphic Design Arts

The relationship between arts and mathematics is very close. Computer graphic design is based on digital methodology. The paper reveals the mathematical backgrounds behind graphic design by the example of computer-aided cubic modeling and mathematical exchange methodology. Furthermore, one can get incredible artistic effects if computer graphic designers pay more attention to the probability and use probable numbers and fractal operation in their design activities. Finally, the author also discusses the bidirections between arts and mathematics.     

Study on Three-layered Grid Conceptual Prototype Using Ecological Network Computing Environment

Next generation grid systems where the emphasis shifts to distributed global collaboration, a service-oriented approach and information layer issues exhibit a strong sense of automation. Requirements for these systems resemble the self-organizing and the healing properties of natural ecosystems. Some key ecological concepts and mechanisms are introduced into the design for the third generation grid computing architectures by inspiration of this resemblance. Also, an Ecological Network-based Computing Environment (ENCE) platform is designed in this paper. Based on the ENCE platform, a grid-computing model of three-layered grid conceptual prototype that embeds the ENCE layers is presented from the viewpoint of implementation. The implementation model should be useful to the design of the third generation grid systems.     

Conflict resolution based on collaborative design of grid services

To the issues of low efficiency of conflict resolution method in collaborative design, we proposed a method, which is conflict resolution about collaborative design based on grid services.It uses the grid services from the current design points, uses the method of retrospective thinking to find the conflict point by detecting, and then uses the corresponding method to resolve the conflict point according to the conflict characteristic, after that carried on the conflict detection again. If there is still the conflict, resolve the conflict point again, until the conflict no longer exists. This method combines various traditional resolution methods, makes full use of the grid idle high-performance large-scale sharing resources. With this method the collaborative design conflict resolution cost reduced and the conflict resolution efficiency was raised. And then the problem which is not handled completely was then solved, so that the conflict resolution Quality was guaranteed.     

Simulation and Optimized Design of Grid Concentration Transducer for Two-Phase Flow

A new concentration transducer for the measurement of gas/solid two-phase flow in the profile of pipeline was studied. The design of grid electrode was employed, and hence the distribute of electric field in the space was homogeneous effectively. The variance of measurement value for the influence of flow regime variations has greatly reduced, and the precision of measurement was improved. Meanwhile, optimization of axial property in the grid electrode increases the ability of tracing and measuring of the concentration signal in real-time.     

A Chord-based resource scheduling approach in drug discovery grid

This paper presents a resource scheduling approach in grid computing environment. Using P2P technology, this novel approach can schedule dynamic grid computing resources efficiently. Grid computing resources in different domains are organized into a structured P2P overlay network. Available resource information is published in type of grid services. Task requests for computational resources are also presented as grid services. Problem of resources scheduling is translated into services discovery. Different from central scheduling approaches that collect available resources information, this Chord-based approach forwards task requests in the overlay network and discovers satisfied resources for these tasks. Using this approach, the computational resources of a grid system can be scheduled dynamically according to the real-time workload on each peer. Furthermore, the application of this approach is introduced into DDG, a grid system for drug discovery and design, to evaluate the performance. Experimental results show that computational resources of a grid system can be managed efficiently, and the system can hold a perfect load balance state and robustness.     

A virtual machine-based invasion detection system for the virtual computing environment

0IntroductionThe virtual technologies whichaimat raisingthe uti-lizationrate of resources and the realization of the large-scale sharing of resources have enjoyedrapid developmentinrecent years.The virtual technologies research primari-lyfocuses ontwo directions:node-level and application-level virtual technology.At present,a popular subject ofstudyin application-level virtual technologies is the useof grid and P2Ptechnologies.However,personal comput-eris a closedintegritysystemin design,soit…     

Interactive graphics mechanical optimum design

Virtually all conventional optimizations are Performed in a batch computer environment. No graphic information during the optimization process is provided. The research tactics and implementation procedure of interactive graphics in mechanical optimum design are presented. An interactive Graphics Mechanical Optimum Design Program(IGMODP) for microcomputers is developed. The example of wheeled loader's working device optimum design using IGMODP is carried out.     

A Study on Flexible Fixture CAD Methods in FMS

The significance of study on flexible fixture CAD methods is summarized. Based on the AUTOCAD software, represented with slot Modular fixture dements, the flexible fixture CAD methods are discussed, such as part representative model,feature modeling,design method,structure of the graphic library, optimization of assembly drawing structure, optimal choice of interactive function, and CAD Information database management.     

基于GPU并行算法的水动力数学模型建立及其效率分析

应用非结构化网格建立水动力模型目前已经得到了广泛的应用.针对在网格数过多,且无集群机情况下难以快速获得计算结果这一问题,基于GPU的高性能计算技术,在CUDA开发平台下设计并行算法,建立非结构化网格的二维水动力模型.与利用GTX460显卡和集群机的计算效率对比表明,在保持计算精度的前提下,速度提升了一个量级,且随着网格数的持续递增,可以保持较高的加速比增幅,比较适合应用于大范围海域的水动力模型的数值计算.     

利用ObjectARX 技术开发组合网架自动设计软件

利用ObjectARX2000/2000i/2002在AutoCAD2000下编制了组合网架结构CAD程序,使用者只需利用AutoCAD常规绘图方式输入组合网架的图形、支座和结点荷载,即可自动形成空间网格的结点及杆件信息,并可进行图形及数据检查;然后利用AutoCAD ObjectARX与Visual C++的接口,采用组合网架的杆元分析法,进行结构内力分析,得到结点位移及杆件内力等计算结果并自动选择杆件最优截面,并用图形方式显示出结构内力、杆件选用等计算信息,最终形成施工图.同时自动计算结构总用钢量及混凝土用量,实现了组合网架结构的自动设计.     

试论中国当代平面设计民族化风格

随着世界范围内的数字科技革命和人类物质文明的高度发展，各国平面设计的民族特征逐渐消减，被国际特征取代，从而促进了国际平面视觉语言的形成。但是，设计同时是民族文化的组成部分，其国际化的趋势必然形成单一的视觉语言效果。因此，在平面设计的国际化趋势中，其实也潜伏了民族文化发展的可能性。文章仅就中国当代平面设计的发展现状及世界平面设计的多元化发展趋势进行探讨，以此论证中国平面设计民族化的可能性。     

服装设计中的图形语言表达

图案作为服装设计中的一个不可或缺的重要设计元素,在服装中的表达方式与其他设计领域中完全不同。本文着重阐述服饰图案在服装中的表现形式来体现图案与服饰的关系,并且提出图案设计在服装设计中对于人体结构的结合运用的观点,目的在于启发和突破服饰图案设计的方法。     

普适计算环境下三维模型的错误保护编码

 普适计算环境普遍存在传输信道误码率高的问题。三角网格模型由于不规则的网状结构,对于传输错误非常敏感。为提高三角网格模型在普适计算环境下的传输质量,提出了一种三维模型的错误保护编码方案。将三维模型数据编码为类似二维图像的方式,三角网格模型不规则的网状结构被消除,数据关联性大为降低,误码弹性得到根本改善。为了进一步提高编码效率,给出了基于错误保护的压缩编码方案。为了控制创建过程中产生的参数化误差,还提出了一种均匀准保角平面参数化方法,确保了重建的三维模型忠实于原始三维模型。模拟试验的结果表明,与常规的三角网格编码方法相比,这种编码方法改善了三维模型数据的误码弹性,并只需较少的存储空间。     

平面构成中书法元素的融合应用

书法与平面构成,虽是不同的艺术形态,但是两者之间却有着许多共通点。基于两者点、线、面本质构成,将书法中诸多元素融入到平面构成中,对于平面构成的艺术层次拓展以及打造民族设计风格都具有极其重要的意义。     

动态图形设计能力培养探研

动态图形设计能力是视觉传达设计专业随着行业发展需求而拓展出来的新要求。文章从分析动态图形设计的发展现状和内涵出发,梳理分析了动态图形设计的能力构成,并从知识体系、课程结构及教学设计三方面提出了教学改革对策。     

水利工程设计图档流转管理方法及实现技术

在对水利工程设计图档的专业和物理特性以及流转过程中的动态特性进行详细分析的基础上，为设计图档的流转建立了一个开放的体系结构。将图档流转过程中对应的核心活动：校对、校核、审查、审定以及设计再修改集中反映为对设计图档的“下载”和“提交”，并且设计了相应的程序。这一开发式体系大幅度降低了“管理系统”的设计和运行开销，而且不增加流转活动中工程设计人员的额外技术负担，优化了人－机协调，并达到高度一致。     

图形创意表现之探讨

从图形语言、图形符号、图形文字等方面讲述了图形创意的表现,使我们在艺术设计和创意表现的时候,能够得到更有效的帮助和应用,通过强调创造性思维表现和图形视觉语言研究,使图形创意更具独特表现力。     

计算机辅助水轮机投标设计和初步设计的图形处理

1 系统的总体结构及功能本系统硬件配置如下:主机(IBM-PC或其兼容机,内存要求640kB以上)、绘图仪(671-20型六笔绘图仪)、打印机等一般外部设备.本系统软件由设计计算、数据库管理和图形绘制三部分功能软件组成,它们在系统管理程序的统一控制管理下,构成一个有机的CAD系统.本系统采用TURBO-PASCAL语言.1.1 设计计算软件具有如下功能:轴流式和混流式水轮机运转特性曲线换算;转轮流道尺寸换算;导叶叶型设计、导水机构传动关系和作用力(力矩)分析计算;混凝土和金属蜗壳(与座环各种联接方式)水力计算;各种尾水管设计计算等共计9个功能程序.每个功能程序都单独编制和调试,功能程序是相对独立而完整的.它们既可以在系统管理程序的控制下,以点菜单的方式运行,也可以在CCDOS系统下,作为单个的程序运行.1.2 数据库管理软件