模拟

The matching device automatic test-board is the checking tool checked the matching device capability, precision and reliability are the technique of the the matching device, the precision is the precondition of checking the matching device, the reliability is credibility degree of the decision checking consequent.the topic in view of the existing technique level, the main factors, which influence the measurement precision of the large scale test system, are analyzed in this paper, and the solutions improving the precision are put forward.1 using the multi-channel independent ac to transfer dc module, the power supply of the digit part and the simulation part is discerption, reducing the crosstalk between the digital signal and the simulated signal;2the feedback self-checking module is constructed by singlechip compositive 16 high accuracy a/d , established a closed-loop control system through this module and improved system's overall precision effectively.

匹配装置自动测试台是检测匹配装置性能的检测工具，其重要的技术指标是精度与可靠性，其高精度是作为检测匹配装置的前提，可靠性是决定了检测结果的可靠度。本课题针对现有的技术水平，分析了影响大型检测系统测量精度的主要因素，提出了提高精度的具体方案和办法：1采用了多路独立交流转直流模块，数字部分与模拟部分分开供电，减小了数字信号与模拟信号之间的串扰。2利用单片机集成的16位高精度a/d构建了反馈自检模块，通过该模块建立了一个闭环控制系统，有效地改善了系统的整体精度。

Last, computer simulation study of the interaction disciplinarian of laser and myocardium tissue has been made by using computer simulate experiment study method.

最后，利用计算机模拟实验研究的方法对激光与心肌组织的作用规律进行了计算机模拟研究。

The optimization of the water resource systems is performed by discrete differential dynamic programming and the flood routing for lakes, canals, sluices and pumping stations can be done by using simulation technique in the state transition process.

本文介绍一种动态规划与模拟技术相结合的算法，用离散微分动态规划法进行择优计算，在状态转移过程中用模拟方法进行湖泊、河道、排水闸、抽排站等各项工程的水利计算。

With the help of the method,the casting process of the aluminum matrix composite brake disk was simulated by ProCAST code.

并在该方法的指导下，借助ProCAST模拟软件，对铝基复合材料制动盘的成型过程进行模拟。

GPSS is one of the most common languages that are used in computer simulation area of disperse field.

GPSS语言是目前在离散系统计算机模拟领域使用的最常见的模拟语言之一。

The Large eddy Simulation is used to simulate the flow field and cavitation on an Orifice Energy dissipator. The characteristics of cavitation was analyzed. The calculated and the measured pressure distribution and the cavitation were in agreement.

采用大涡模拟方法对消能孔板流场及空化现象进行了数值模拟，研究分析了消能孔板空化特性，计算所得的压力分布及空化特性与减压模型实验结果进行了比较，二者符合良好。

According to generalized modular design, finite element models of each function module are built in ANSYS, which belong to pre-tightening frame of 45 MN forging press. MPC banded contact is used to simulate the connection of two fixed parts, while standard contact is used to simulate the connection of two dissociable parts, Deformations and stresses of the forging press under two working conditions are discussed, which provide good guides to the design of such kind of press.

依据广义模块化设计原理，在ANSYS中分别建立了45MN锻压机预紧组合机架各个功能模块的有限元模型，采用MPC绑定接触模拟闭合模块间的连接，标准接触模拟可开裂模块间的连接，分别讨论了空载和临界载荷两种状态下机架的变形和应力分布，计算方法和计算结果为此类机架的分析、设计提供参考和指导。

The increase of distance in circle neighborhood will decrease the model precision, in the mean while the increase of distance in rectangle neighborhood will increase the precision first then decrease.

环状邻域距离的增大会导致模拟精度的降低，面状邻域距离的增大则导致模拟精度先增后降。不同土地类型对邻域距离变化的敏感程度和反应皆不相同。

Finally,a distance function was defined and change threshold was set for change detection.

在模拟结果基础上，定义相对变化距离函数和检测门限，对模拟影像及实际影像中的变化区域进行了检测。

It has been obtained that the distortion characteristics of the gently-slant rock mainly include asymmetrical distortion and obtuse angle destruction.

尝试采用以板状单元模拟缓倾层状岩体，对徐州矿区旗山矿缓倾（8°）层状岩体的产状及结构性特征进行模拟，再现了巷道的破坏全过程。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。