The main research contents and results embody as follows: According to the two typical drawing simulation of box part and cylindrical part, it is arrived a main method in improving sheet metal forming ability as follows: in the qualification of not initiating the wrinkle, brought more particle in fillet region into straight flange region, in the meantime cause the particle in the straight flange region run more distance towards the middle region which resistance is the minimal. A theoretical study of new technique is developed in sheet metal forming base on virtual power principle. The results indicate that decrease the equivalent stressσ, improve the lubricate state in contact surface, decrease the area, the normal contact stressσn and the equivalent strain velocityεin initial principal deformation region, adjust and optimize the particle cycle flow of work piece flange face will greatly increase the sheet metal draw ability in room temperature conditions. And drawing hole forming technology is araised based on the analysis above.
本文的主要研究内容和结果体现在以下几个方面：根据两个典型的拉深工艺盒形件和筒形件拉深的数值模拟结果，研究得出为提高板料拉深成形性能而应采取的工艺措施是，在不引发起皱的条件下，使得圆角区域中的质点更多地进入直边区域中，同时使直边区域中的质点、朝着流动阻力为极小的中部区域移动更大的距离；依据塑性力学的基本原理——虚功率方程，基于提高板料的成形性能的目的，对虚功率原理关系式中每项参数的变化，进行了深入的分析后得出，在覆盖件的拉深过程中，可通过适当的工艺方法与措施，减小等效应力σ，改善接触面上的润滑状态，减少初始主变形区的面积，减小主变形区的法向接触应力σn的量值，减小主变形区的等效应变速率ε，起到调节与优化工件法兰面上的质点的周向流动的作用，以此为基础，提出了拉深孔的工艺措施即拉深孔成形新工艺。
Study on dynamic property of roller coaster under the action of wind force based on virtual prototype; 2. A further analysis with numerical simulation shows the downstream buildings have marked effects on the wind force s of upstream building when the distance between buildings is short.
以广州合景大厦为背景，用数值模拟方法，并通过数值模拟与风洞实验平均风底部剪力的比较，得出当干扰的高层建筑处于下游或斜下游时，上游合景大厦的静风力比不受干扰时显著增大。
So an energy and distance efficient clustering algorithm based on virtual area partition was proposed in this paper for heterogeneous wireless sensor networks.
提出了一种基于虚拟区域划分的适用于异构无线传感器网络的能量和距离有效分簇算法。
The function of the nonlinear suspension stiffness with tire skipping distance was obtained by virtual displacement theory.
根据虚位移原理计算得到了扭杆弹簧双横臂悬架的非线性悬架刚度与车轮跳动的函数关系。
This research pointed out that, with the development of computer graphics and the networks, using virtual reality technologies in computer to create 3D Virtual simulation environment, and through virtual avatar to communicate can improve distance teaching of English, achieve better teaching effect.
本研究认为伴随着计算机图形技术和互联网技术的发展，在计算机上利用虚拟现实技术创建三维虚拟仿真环境并通过化身学习法（虚拟化身进行交流的学习方式）有助于改善上述问题，提升英语网络教学效果。
To systematicallyinvestigate this landmark, we conducted a study in four phases:1 Two blindfolded examiners determined the distance betweenthe tuberosity's medial border and the clavicle's lateral endin 100 dried clavicles and then 2 performed subclavian veincannulation in 20 fresh human cadavers using the tuberosityand the suprasternal notch as landmarks. 3 Three-dimensionalreconstructions of the subclavian artery and vein and surroundingstructures were derived from computed tomography datasets of10 patients. The length of the path of a virtual subclavianvein cannulation with the deltoid tuberosity landmark was measuredbilaterally. 4 In a prospective, randomized trial, subclavianvein cannulation was performed in 60 patients with a standardapproach or with the deltoid tuberosity as landmark.
为系统地研究这个解剖标志，作者将本研究分为四个阶段：1 双盲检查100个干燥的锁骨测量其三角肌粗隆内侧缘至锁骨侧面末端的距离；2 在20具新鲜的尸体上以三角肌粗隆和胸骨上切迹为标志进行锁骨下静脉穿刺；3 利用 CT 所获取的数据资料对10个病人的锁骨下动脉和静脉以及周围结构进行三维重建，测量两侧以三角肌粗隆为标志的虚拟锁骨下静脉置管路径的长度；4 选择60例病人以标准路径或三角肌粗隆为标志进行锁骨下静脉穿刺的前瞻性随机试验研究。
This is the kind of system that fits any virtual office whose employees require to produce lots of long-distance calls.
这是什么样的体制适合虚拟办公室的员工需要出示大量的长途电话。
Dot sideline density (control film virtual Halo degrees) refers to the corresponding to the net-point Center density of 10% and 90% of the Office of the contour of the average distance between, and the wire width is defined as the reciprocal of the number of the wire.
网不面边线密量是指差答于网不面边际密量的10%和90%处边框线之间的均匀间隔，而网线宽量是指网线数的倒数。
Using virtual finger`s position steading of real distance and extrapolation based on real material are also suggested in the system.
在系统中提出以虚拟手指空间位姿代替实际力作用线方向上位移的计算和基于实际材料的虚拟力外推的方法。
The first part of this thesis recapitulates the development and application of virtual experiment and virtual laboratory, computer aided construction and distance education at home and abroad.
本课题首先阐述了国内外虚拟实验及虚拟实验室的发展，计算机辅助教学的发展及远程教学的发展和应用情况。
This paper discusses the achievement pattern of electronic technology long - distance virtual laboratory based On the LabView.
讨论了基于LabView的电子技术远程虚拟实验室的实现模式，提出了虚拟实验室的概念及构成方案，设计了硬件系统和软件系统，并给出了远程实验系统的拓扑结构。
At present, the school of Health Physics and Chemistry Laboratory of a total of nine, with a total area of 1200 square meters; with music, fine arts, technical workers each one dedicated classroom; a total of 94 computer units, computer room, a student, teacher preparation room of a dedicated electronic, Distance Education in a satellite ground receiving station, the three ADSL broadband network, the two campus virtual telephone network 400.
目前，该校共拥有理化生实验室9间，总面积1200平方米；设有音乐、美术、劳技专用教室各一间；共有计算机94台，学生电脑室一个，教师专用电子备课室一个，远程教育卫星地面接收站一个，三个ADSL宽带网，两个校园虚拟电话网400部。
The true story in the specified virtual space is made into program by comprehensive and authentic close distance shoot and take people as the core in the anaphase edit.
特定虚拟空间中的真实故事，以全方位，真实的近距离拍摄和以人物为核心的戏剧化的后期剪辑而作成的节目。
The popularization and application of intelligent terminals have supplied a virtual convenient channel for the exchange of information between buyers and sellers and shorten the distance of businesses'and consumers'time and space.
智能终端的普及应用，更是缩短了商家和消费者时间与空间的距离，为买卖双方的信息交流提供了一种虚拟的便捷通道。
The Application of Virtual Reality Technology on Long-distance Virtual Experiment for Fluid Drive
虚拟现实在《液压传动》远程虚拟实验中的应用
This paper focuses on an increasing mature Virtual Private Network (VPN) technology which not only low the cost of building up long-distance data transfer network system but also meet the security requirement.
本文讲述一种利用日益成熟的虚拟专用网络（virtualprivatenetwork，简称VPN）技术，组建异地数据远传网络，它可以满足降低成本和保障数据安全两方面的要求。
In order to satisfy students'needs of belongingness and identification, promote the quality of studying and learning, and advance the reputation of school, it is very necessary to construct the virtual campus culture in modern distance education.
开展符合远程教育特点的校园文化建设对于满足学生的归属感和认同感、提高学校的社会影响力和吸引力、提高学校的管理水平和教学质量具有重要意义。
Analysis on Supersonic MMW radome influence in the near distance radar virtual measurment system
超音速毫米波天线罩对近程雷达虚拟测试系统影响分析
Intend to show a spiritual depth instead of the virtual image of three-dimensional distance.
意图以心灵空间深度取代三度空间距离的虚像。
This paper introduces the design of image interactive based on TCP/IP protocol, and discusses some key problems of image capturing, data compression and data transmission. It has been implemented in the Distance Virtual Physics Experiments.
该文主要介绍了基于TCP/IP协议上的图像交互系统的设计方法，对图像截取、压缩和传输等关键问题进行了研究，并在远程虚拟物理实验系统中实现了图像交互的功能。