查询词典 virtual

The Virtual Experiment and Virtual Laboratory appear with the development of computer technique and Virtual Instrument technique.

摘要虚拟实验与虚拟实验室是随着计算机技术、虚拟仪器技术的发展而出现的。

In this paper,by detailed narrations of structure of moveing-felt simulator,the component of virtual reality,the numerical control model of moving-felt platform,and our some research work in the technology of combination between virtual reality and the moving-felt simulator have been introduced,and we also development direction of virtual reality in the future.

通过对动感模拟器组成结构详细的叙述，介绍了虚拟现实的组成，给出了动感运动平台的数控模型，在虚拟技术与动感模拟器结合方面进行了研究，并介绍了虚拟技术未来的发展方向。

In virtual scene, especially in outdoor virtual scene such as flight simulation、 game and war game system, 3D cloud is a very important part because it improves the third dimension of the virtual reality.

在虚拟场景中，尤其是室外虚拟场景，如飞行模拟、游戏和军事演习等系统中3D云是一个非常重要的组成部分，使场景的真实度和交互性大大提高。

The main contents and results of research in this paper are shown as following: It is important to built the motion model of a virtual system. As the virtual object is the submarine in this simulation system, we studied on the motion model of the submarine and gave the submarine six DOF space motion equation MultiGen-Paradigm corporation's modeling software named Creator is used, the modeling of all entities and 3D terrain in virtual ocean environment is accomplished. Then introduced the theory of Large Area Database Management and realized the Large area database management; In the course of 3D scene simulation, Vega is utilized to develop the project. The building of 3D scene is done, which includes the simulation of static and dynamic ocean surface, realization of ocean wave, simulation of bow wave and stern wake, utilization of lighting and material, simulation of cloud and fog, kinematics' modeling of submarine etc.

论文的主要研究工作和成果包括以下一些内容：建立虚拟对象的运动模型是构造一个虚拟系统的关键所在，建立的运动模型准确与否直接关系仿真对象模拟的逼真度，由于本仿真系统的虚拟对象是潜艇，所以对潜艇的运动模型进行了研究，给出潜艇空间六自由度运动方程；利用MultiGen-Paradigm公司的Creator建模软件完成虚拟海洋环境中个实体模型建模和三维海底地形模型的建模；然后介绍了大地形数据库管理(LADBM，Large Area Database Management)技术的基本原理，实现大地形数据库管理；在三维场景仿真中，使用Vega驱动软件进行软件开发，完成了三维场景空间的建立，主要包括动态和静态海洋的仿真、海浪、船首波浪和传尾尾迹的实现，灯光和材质的使用，云和雾的模拟等。

Based on the virtual simulation environment of virtual prototype simulation analytical software ADAMS, the reliability based virtual experimental research was developed on the broadly applied crank - slider mechanism.

基于虚拟样机仿真分析软件ADAMS的虚拟仿真环境，对应用广泛的曲柄滑块机构开展基于可靠性的虚拟实验研究。

While based on the companions model and self-capacity model, selecting companions and allying companions can be realized and agent federations which can be nested are built to support the cooperation in the virtual enterprise. The tasks and activities in the virtual enterprise can be implemented through the activity model in the agent. In the virtual enterprises, we discuss the cooperation and negotiation deeply.

其中，虚拟企业的合作是基于虚拟企业过程模型进行的，通过任务、活动间各种约束关系的满足和实现，触发、执行了逻辑情景的演算过程，实现了合作伙伴间的合作，即将适当的信息在适当的时间传送给适当的人。

The paper first presents a linear timeconsuming model of data access through the analysis of the virtual storage principle and then gives a decision-making method for data placement and access path selection problem. In the development of this method, the concept of equivalent of virtual storage cost is defined to evaluate the data placement cost in the FC-SAN virtual storage environment.

首先通过分析虚拟存储原理提出了一个数据访问耗时的线性模型；然后，就数据放置和访问路径选择提出了一个决策方法；并在进一步探讨这一方法的过程中，定义了&虚拟存储代价当量&的概念，用以评价FC-SAN虚拟存储环境中的数据放置的代价，从而为评价以及如何选择数据放置和访问路径提供了一种定量的手段。

Month ago, I used lvoepig the account you bought the Deluxe Plan program of the virtual hosts, I was bound bbs.vg domain name, I said in my domain control panel resolved some of the sub-domain name to this virtual host IP, that is, with these sub-domains to establish an independent web site.

1个月前，我用lvoepig该账号买了你们的Deluxe Plan方案的虚拟主机，当时我绑定的bbs.vg域名，我在我的域名控制面板解析了部分子域名到此虚拟主机的IP，也就是用这些子域名建立了独立的网站。

a kind of design project of multifunction electric power quality gauged instrument based on virtual instrument is put forward in this article.this system integrates virtual instrument programming and power electronics together,to realize diverse signals of current electric power quality field allin one.the integrated signal generator unit which carries out the collection of high speed digital data,d/ a conversion and analog output in four channels,unsymmetrical synchro control fifo etc.by fpga are introduced,the flow of electric power system various signal which generates by vc programming is elaborated,and the structural design of signal amplification unit is analysed.the experiment text result shows that this gauged instrument has attained current advanced high grade of accuracy and it will accelerate the steps of electric power quality calibration because of its accuracy and versatility.

摘 要：提出一种基于虚拟仪器技术的多功能电能质量标定仪的设计方案，采用虚拟仪器编程技术和电力电子技术相结合实现集目前电能质量领域的多样信号于一体。介绍采用fpga实现高速数字量采集、d/a转换及4通道模拟量输出、非对称同步控制fifo等的集成信号发生单元，阐述利用vc编程实现的电力系统多样信号的产生流程，分析信号放大单元的结构设计。实验测试结果表明该标定仪达到目前先进的高精度等级，由于其准确性和多功能性将加快电能质量标定的步伐。

Immediately upon receipt of the Card and/or being notified of the issue of the Virtual Card, you have the responsibility to sign the Card on the space provided and/or sign and return to us acknowledgement of receipt of such notification, and if so required by us activate the Card and/or the Virtual Card according to our instructions.

於收到信用卡及/或获发网上卡通知之後，阁下有责任立即於信用卡上所预留之空白处签署及/或签署及交回有关通知之确认收妥回条，及按照卡公司的指示使信用卡及/或网上卡生效。

Use nationalization degree and the relationship that commercialize degree, condition of calculable market economy plays scope of optimal and state-owned economy.

利用国有化程度与市场化程度的关系，可计算市场经济条件下最佳国有经济规模。

The kinds of extractant also effected desulfurization rate .

萃取剂对脱硫率的影响也很大，乙二胺的萃取效果优于甲醇的。