In chap.3, we will extend themodel of the large bipolaron introduced by Verbist et al to arbitrary Ndimensions, calculate the bipolaron characteristics such as the ground-state energy, effective mass, average number of virtual phonons, andradius, and plot the figure of the bipolaron stability region.
在第三章中，我们将Verbist等人研究双极化子的模型推广到任意N维的情形，计算了任意N维的大双极化子的基态能，有效质量，平均虚声子数和半径，并画出双极化子的稳定区域图。
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。
Aiming at this problem, we advise a kind of replication methods about stateful Grid Service, which implements the replication of software and hardware environment using customized trait and well executing separation attribute of Virtual Workshop, accomplishes the replication of Grid service memory state based on the Snapshot, realizes the replication of stateful resource adopting modeling technology of Web service.
1引言随着网格技术的发展，网格框架逐步采用了新的OGSA模型。OGSA模型是一种完全面向服务的模型，由基本服务和高级服务组成。大部分网格服务与静态资源不同，是有状态的，能够随时间和网格用户的调用不断地改变自身状态。为了能够在OGSA模型下消除网格服务的访问瓶颈，能够对网格
The extended GDB integrated in PORD controls the virtual machine remotely, and restores history states of debuggee according to the state log.
PORD中集成的功能扩展的GDB远程控制虚拟机，根据检查点的状态日志重建历史执行状态，从而达到逆向执行目的。
This entails the symmetries of occupied and virtual orbitals (which may or may not be identical to the symmetries listed for the wavefunction guess), the symmetry of the electronic state of the system, orbital energies of all orbitals, and essential results from a Mulliken population analysis.
link 601给出了占有轨道和空轨道的对称性（它们可能与猜测的波函数的对称性一致），体系电子态的对称性，所有轨道的轨道能量，还有Mulliken布居分析的基本信息。不同的多极分量列在最后。
Esc6 by seven key upward, downward by eight keys, 9 according to the menu, according to the 10 right-left softkey 11, the right softkey 12, the volume increase 13, 14 by volume, display the current date of 15 hours, switching WiFi16, showing activation of the menu 17, 18 procedures for the closure of the future, Switching to the next procedure 19, confirmed on/off 20, 21 start menu, task list of 22, switches the screen 23, Switching Bluetooth, 24, vibration switches 25, switched to 26 today screen, select all 27, reproduce 28, shearing 29, Sticking 30, 31 state memory, use 32, 33 soft start, I turned 34, rotary screen 35, 36 phone closed, Virtual keypad support equipment: Windows Mobile 2003SE PocketPC and PocketPC Ph one EditionWindows Mobile PocketPC 2005 and Po Mobile Phone EditionWindows cketPC 2003SE Sma rtphoneWindows Mobile 2005 Smartphone activated interface, Jiaoguoma gaps can directly activate it, set up to interface with vmouse to set up the following dialog box (only into the second graph below installed interface required)!
Esc6七个关键向上，向下的8项，9按菜单，按10右左软键11，右软键12，音量增加13个，由14卷，显示了当前日期的15个小时，开关WiFi16，显示启动菜单17日，18未来的关闭程序，切换到下一个过程19日证实，开/关20，21开始菜单，任务列表22，开关屏幕23，开关蓝牙，24，振动开关25，切换到如今的26屏幕上，选择27个，复制28，剪切29，坚持30，31州的内存，使用32，33软启动，我把34个，圆网35，36手机后，虚拟键盘支持设备：的Windows Mobile 2003SE PocketPC和掌上电脑电话1 EditionWindows移动掌上电脑2005年与宝手机EditionWindows cketPC 2003SE斯莫rtphoneWindows手机2005智能手机激活界面，Jiaoguoma差距可以直接激活它，建立与vmouse接口成立下面的对话框（仅在下面的安装所需的接口的第二个图）！
Application of virtual instrument technology, the development of a set of current transformers for steady-state accuracy and transient saturation of the detection system characteristics.
应用虚拟仪器技术，研制出一套适用于电流互感器稳态准确度和暂态饱和特性的检测系统。
The SCF State ModelFinite State Machineand structure of the Virtual Machine, the principle and advantages of the Virtual Machine plus interpreter are also discussed in detail.
本文还详细讨论了智能呼叫在SCF中的状态转移和所设计的虚拟机的内部结构，以及基于虚拟机加解释器的工作原理和优点
Do you doubt if the State of Wei is virtual or fictive?
曰：「知游心于无穷，而反在通达之国，若存若亡乎？
In this paper, by adopting nonlinear tracking differentiator to pick up the state variable and introducing nonlinear feedforward coefficient, virtual zeros and the impact on open-loop bandwidth by the load are eliminated, and the outside displacement disturbance and eccentric disturbance are significantly rejected.
本文通过采用非线性跟踪微分器提取状态观测量并引入非线性前馈系数，消除了纯虚零点，消除了负载特性变化对开环频宽的影响，显著地抑制了外部位移干扰和偏心力干扰，从而使得产品质量大幅度提高。
But a Virtual State Library Would Do It, Right?
但是一个虚拟图书馆就这样做了，对吗？
Myself am being in the life the energetic time, extremely longed for exposes own in a broader world ability, university study period I do not satisfy with the existing state-of-art, the use holiday, the vacation time and on clinical carry on the virtual rating operation training in the social crowd, expected obtains the proof and the enhancement in the practice, therefore has the certain clinical work experience, own diligent spirit and the steadfast manner, sincerely obtained many customers and the guidance and teaching teacher's high praises by, I extremely hoped can join the expensive unit the medical service service industry.
本人正处于人生中精力充沛的时期，十分渴望在更广阔的天地里展露自己的才能，大学学习期间我不满足与现有的知识水平，利用节日、假期时间在社会人群中和临床上进行实际能力操作训练，期望在实践中得到求证和提高，因此具有一定的临床工作经验，自己勤勤恳恳的精神和踏踏实实的态度，以一份诚心得到了许多顾客和带教老师的好评，我十分希望能够加入贵单位的医疗服务行业。
Introducing virtual reality technology into material handling system, intervening the computer between operator and machine will be a effective method for resolving the problem above, by which a remotely operating system is constructed, in which the intelligence of operator, artificial intelligence, the strong calculation and logical inference capability of computer are synthesized so that the operator operates the machine far away from the poisonous environment, deep gully and tunnel Here we introduce the virtual reality technology into material handling machine system for the first time, and set the excavator, which performs in the dangerous environment, as a object for studying, present the theory of VR-based excavator remotely operating simulation, and as for the human computer interface and the generation of virtual environment, a series of problem are studied as follows.(1) Analyses deep into the virtual reality technology, put forward the theory of VR-based excavator remotely operating simulation, research contend method, etc.(2) Study the motion modeling of hydraulic excavator, which is simplified as a robot, the parameter verification of the rods, the state matrix of the end performer, the constraint representation and constraint driving equation, finally the motion simulation is given (3) Set the data glove and stereo display equipment as an example for the interface between human and the computer in virtual reality application. Study the nerve physiology and psychology basis and interference principle, data transforming relation of virtual space, which is based on two kinds of equipment above, (4) On the basis of data glove, set up the simplified structure of hand model, present BP nerve network-based gesture recognition, develop Herzen's collision detection algorithm, and its application in the procedure of virtual hand's operating virtual objects, on the basis of studying deep into haptic type, get the mathematics model of contact problem between virtual hand and virtual objects, and for the first time, put forward nonlinear contact finite element modeling idea.(5) Develop OPENGL-based developing environment of virtual scenes, modeling principle, study deep into obtaining data resource of virtual scenes, and their interface with OPENGL, VRML-based scene modeling, etc.
本文首次将虚拟现实技术引入物料搬运机械系统，并以恶劣环境下的挖掘机为对象，提出了基于虚拟现实的挖掘机远程操作仿真理论，并就这一理论的人机接口和虚拟环境的生成作了如下深入的研究：(1)深入分析虚拟现实技术本身，提出了基于虚拟现实的挖掘机远程操作仿真研究课题、相关的研究内容、方法等；(2)研究了液压挖掘机机器人化的运动学建模方法，杆件参数确定方法和末端执行器的状态矩阵，约束的表示和约束驱动方程等，并作了运动学仿真；(3)以手套和立体显示设备为人与计算机接口的主要器件，研究了虚拟现实应用中基于这两种设备的神经生理、心理学基础、交互原理等，虚拟空间的数据变换关系；(4)在以数据手套传输入数据的基础上，建立了手模型的简化结构，提出了基于BP神经网络的手势识别方法，发展了Herzen的碰撞检测算法应用在虚拟手操作虚拟物体的过程中，具体研究了基于雅可比边界框的理论推导过程和初步仿真结果，在具体分析触觉反馈类型的基础上，得出了虚拟手与虚拟物体接触产生力反馈过程的数学模型，首次提出了基于非线性接触有限元接触理论的建模方法；(5)建立了基于OPENGL的微机平台虚拟场景的开发环境，建模机制；深入研究了虚拟环境场景建模的数据源获取方法、与OPENGL数据接口的制定。
Virtual cloning threatens 2nd Life - A nice little overview of the world of blogging called the State of the Blogosphere with graphs!
虚拟人生2克隆威胁-光明综观世界称为国家的blogosphere网志图！
This paper introduces briefly the structure of China State Construction Engineering Corporationvideo conference system, analyses its correlative technology such as Virtual Private Network, Multipoint Control Unit, video terminal technology and function, and discusses the application foreground to video conference system.
本文简要介绍了中建总公司视频会议系统的构成，对其相关技术虚拟专用网络、多点控制器、视频终端技术及功能进行了分析，对视频会议系统及应用前景进行了探讨。
The propose of this thesis is to develop an adaptive drowsiness estimation system based on electroencephalogram by combining with independent component analysis, time-frequency spectral analysis, correlation analysis and fuzzy neural network model to estimate a driver`s cognitive state in Virtual-Reality dynamic driving simulator. Moreover, the VR-based motion platform with EEG measured system is the innovation of brain and cognitive engineering researches.
本论文的目的在发展一套有效的驾驶精神认知状态估测系统，利用脑电波讯号结合频谱分析、独立成分分析演算法、相关系数分析以及类神经网路模型，结合虚拟实境动态模拟驾驶系统，开发驾驶员的瞌睡侦测技术；此外在虚拟实境的环境中，结合脑波量测系统与动感平台，进行神经认知系统研究，在脑科学与认知工程领域上都是一项创新。
Then this paper analysis the entity state, environment state and sense consistency of Virtual Environment. Some essential definition and theorem are described.
之后对虚拟环境中实体状态、环境状态、用户感受及感受的三种一致性进行了分析，提出了一些基本定义和定理。
In this manner, the selected state (e. g., blocked or viewable)(50) of a digital channel's viewing status is implemented regardless of whether an off-air guide containing virtual channel number data is enabled or disabled.
这样，对于数字频道的观看状况的所选择状态(例如，阻止的或可观看的)(50)被实施，而不管包含虚拟频道号数据的停播指南被启用还是被禁用。
A water distribution network model which was based on virtual reality was constructed and the state-of-art was simulated in a 3D scene. It works with a clear sense.
建立虚拟城市供水管网运行仿真系统，在三维场景中模拟城市供水管网运行工况，有明确的工程意义。
PART 1 Electrical and Electronic Engineering Basics UNIT 1 A Electrical Networks B Three-phase Circuits UNIT 2 A The Operational Amplifier ——————————— 5 B Transistors UNIT 3 A Logical Variables and Flip-flop —————————— 8 ———————————— 3 B Binary Number System UNIT 4 A Power Semiconductor Devices —————————— 11 B Power Electronic Converters UNIT 5 A Types of DC Motors —————————————15 B Closed-loop Control of DC Drivers UNIT 6 A AC Machines ———————————————19 B Induction Motor Drive UNIT 7 A Electric Power System ————————————22 B Power System Automation PART 2 Control Theory UNIT 1 A The World of Control ————————————27 B The Transfer Function and the Laplace Transformation UNIT 2 A B —————29 Stability and the Time Response ————————— 30 ————————————— 32 Steady State————————————————— 31 UNIT 3 A The Root Locus B The Frequency Response Methods: Nyquist Diagrams ————— 33 UNIT 4 A The Frequency Response Methods: Bode Piots ————— 34 B Nonlinear Control System 37 UNIT 5 A Introduction to Modern Control Theory B UNIT 6 State Equations 4038 A Controllability, Observability, and Stability B Optimum Control Systems UNIT 7 A Conventional and Intelligent Control B Artificial Neural Network PART 3 UNIT 1 Computer Control Technology A Computer Structure and Function B 424344 Fundamentals of Computer and Networks UNIT 2 A Interfaces to External Signals and Devices B The Applications of Computers 46 UNIT 3 A PLC Overview B PACs for Industrial Control, the Future of Control 1 UNIT 4 A Fundamentals of Single-chip Microcomputer B Understanding DSP and Its Uses 49 UNIT 5 A A First Look at Embedded Systems B Embedded Systems Design PART 4 UNIT 1 Process Control A A Process Control System 50 B Fundamentals of Process Control 5352 UNIT 2 A Sensors and Transmitters B Final Control Elements and Controllers UNIT 3 A P Controllers and PI Controllers B PID Controllers and Other Controllers UNIT 4 A Indicating Instruments B Control Panels PART 5 UNIT 1 Control Based on Network and Information A Automation Networking Application Areas B Evolution of Control System Architecture UNIT 2 A Fundamental Issues in Networked Control Systems B Stability of NCSs with Network-induced Delay UNIT 3 A Fundamentals of the Database System B Virtual Manufacturing—A Growing Trend in Automation UNIT 4 A Concepts of Computer Integrated Manufacturing B Enterprise Resources Planning and Beyond PART 6 UNIT 1 Synthetic Applications of Automatic Technology A Recent Advances and Future Trends in Electrical Machine Drivers B System Evolution in Intelligent Buildings UNIT 2 A Industrial Robot B A General Introduction to Pattern Recognition UNIT 3 A Renewable Energy B Electric Vehicles 2 UNIT 1 A
电路 电路或电网络由以某种方式连接的电阻器，电感器和电容器等元件组成。如果网络不包含能源，如电池或发电机，那么就被称作无源网络。换句话说，如果存在一个或多个能源，那么组合的结果为有源网络。在研究电网络的特性时，我们感兴趣的是确定电路中的电压和电流。因为网络由无源电路元件组成，所以必须首先定义这些元件的电特性。就电阻来说，电压-电流的关系由欧姆定律给出，欧姆定律指出：电阻两端的电压等于电阻上流过的电流乘以电阻值。在数学上表达为：u=iR (1-1A-1)式中 u=电压，伏特；i =电流，安培；R =电阻，欧姆。纯电感电压由法拉第定律定义，法拉第定律指出：电感两端的电压正比于流过电感的电流随时间的变化率。因此可得到：U=Ldi/dt 式中 di/dt =电流变化率，安培/秒； L =感应系数，享利。电容两端建立的电压正比于电容两极板上积累的电荷 q 。因为电荷的积累可表示为电荷增量 dq 的和或积分，因此得到的等式为 u=，式中电容量 C 是与电压和电荷相关的比例常数。由定义可知，电流等于电荷随时间的变化率，可表示为 i = dq/dt。因此电荷增量 dq 等于电流乘以相应的时间增量，或 dq = i dt，那么等式(1-1A-3)可写为式中 C =电容量，法拉。