模拟

On the basis of improving the dramatic characteristic of fluid drive system of the platform, the electro-hydraulic servo control system of simulating platform is designed, and its characteristic is analyzed, and the corresponding control algorithm is studied in this paper. What all do is in order to make the platform of ship motion simulating simulate the motion of ship, and realize the high precision motion pose of the platform, and achieve the motion performance index required by the testing of sea sickness.

在提高平台液压驱动系统动态性能的基础上，本文进行了模拟平台电液伺服控制系统的设计、特性分析和控制策略研究，使该模拟平台能模拟船舶运动，实现高精度的平台运动姿态，达到晕船病测试所需的运动环境性能指标。

According to these movement equations, the solid particle random movement model in pumping station forebay is presented.

运用蒙特卡罗直接模拟方法模拟泥沙的三维运动，通过对大量泥沙颗粒运动的模拟，得出泵站前池水流泥沙浓度分布、泵站前池泥沙淤积形态。

According to the character of outer shape of modem buses, the numerical calculations are performed from the simplest shape-cuboid by using ANSYS/FLOTRAN software. First, the foreside of the cuboid is modified step by step in 17 models (this is equal to the process of modification to the foreside of a bus).

在本文中，应用ANSYS／FLOFAN软件，根据现代客车外形的特点，从最简单的长方体开始进行数值模拟计算，首先对长方体的前部进行逐步改造(相当于对一个客车头部进行改造的过程)，这一步骤包括了17个模型；然后再对其尾部进行变化，以模拟客车后车体形状对空气阻力系数的影响，该步骤包括9个模型：最后给出两种现代客车的数值模拟结果。

This paper use Monte Carlo method in Excel to dynamically simulate the service status and waiting time of university dinning room windows. This method based on "random number" is usually used to solve practical problems with complicate probability distribution. This paper simulates one window and two windows of a dinning room separately. Through 1000 simulations and statistic analysis to get conclusions, thus bring up reference frame to decision maker.

用蒙特卡洛法在Excel上对大学食堂的窗口服务状态和排队等待问题进行模拟，分别模拟了食堂在开设一个窗口和两个窗口的情况下学生的排队问题，通过1000次模拟的统计分析得出，该方法具有简便、易行、实用性强的特点，为决策者提供了参考依据。

If these parameters are determined, the uniqueness of evaluation result is contrary to the high risk of exploration. This paper analyzes the distribution characteristics of probability and the probability value by Montekaro simulation, all possibilities are simulated. And all possibilities can be gaine...

本文运用蒙特卡罗模拟进行风险分析，对勘探阶段的所有主要不确定因素的概率分布特征和概率值进行详细分析，力求不漏掉任何一种可能，通过蒙特卡罗模拟得出其所有可能值，最后运用这些模拟值和其他确定的参数进行勘探项目的经济评价，得出各种因素组合的经济评价结果和评价指标的概率分布值，量化了勘探参数和评价指标的风险。

On the basis of the minimum scale soil nutrient distribution generated randomly based on the given values of mean, standard deviation and related distance, or obtained by geostatistics analysis based on soil sampling data, the amount of fertilization, yield and fertilization use efficiency at different scales were calculated by related fertilizer models and yield models supported by geographical information system and computer simulation, then the simulation result was intuitively visualized by curve graphics and RGB primitive colors synthesized image and thematic maps.

系统通过随机数生成法或地统计分析法生成最小尺度条件下的土壤养分空间分布数据，以此为基础，采用GIS、计算机模拟技术模拟不同尺度的养分空间分布，并以肥料效应模型和产量模型计算不同尺度条件下的施肥量、产量和肥料利用效率，最后通过曲线图、三原色合成影像和GIS专题图实现形象直观地表达模拟结果。

A large number of simulation experiments of regenerating the hybrid vehicle's inertial energy are done on the experimental equipment adopting the single neuron self-adaptive PID algorithm to control the brake speed, torque and power, and a large number of simulation experiments of regenerating the hybrid vehicle's gravitational energy by constant rotational speed are also done.

研究设计了可以模拟车辆串联混合传动系统驱动、制动和坡道行驶工况的二次调节综合实验台，建立了实验系统的数学模型；采用单神经元自适应PID控制算法在二次调节综合实验台上进行了车辆串联混合传动系统转速控制制动、恒扭矩制动和恒功率制动回收车辆惯性能的模拟实验，进行了恒转速控制回收车辆重力能的模拟实验，通过实验验证了理论分析的正确性。

The article incorporates Huygens' principle with existing fire behavior models of surface fire spread, crown fire spread, fire acceleration, builds forest fire simulation models which fit to Anning's terrain, and develops related dynamic modules for Yunnan Province. The experiment explores the spread of forest fires based on the Yunnan's special topography simulation.

利用惠更斯原理进行林火蔓延模拟，结合国际上成熟的林火行为模型（Rothermel的地表火模型，Van Wagner的树冠火蔓延模型，McAlpine的林火加速模型），建立适合云南省特殊地形的林火蔓延动态模型，并开发相应的动态模拟模块，在云南特殊地形地貌上的林火蔓延模拟做出一定探索。

The main results of the investigation are as following:(1) Some important criteria for the design of multi-layer structure are acquired: the ratio of the layer thickness to the contact diameter should be controlled to a value about 0.8; increasing the number of the gradient layers and elasticity modulus of the top layer would benefit to the yield strength and the stress status at the interface.（2）By means of molecular dynamics simulations for a indentation and sliding process, it is discovered that dislocations of 45 direction to the surface occur in the surfaces layer, which is correspond to the direction of the plastic flows observed in the macroscopic continuous medium. The irreversible deformation caused by the dislocation and the atom piles at the surface are responsible for the irreversibility of the force response. They are also the main factors for the friction generation. The temperature and the indentation velocity have significant effects on the deformation behaviors of the material of the surface layer. The yield strength would increase obviously if the indentation velocity is greater than 10 m/s.（3）A method to evaluate the fracture toughness of coating by estimating the crack-density functionβof a Wicker''s indentation was proposed. Meanwhile a new surface treatment technology was developed using non-equilibrium plasma.（4）A MD-FE hybrid method and corresponding software was developed to analysis the tribological behaviors for multiplayer system.

研究主要内容和结果有：（1）得到指导梯度膜设计的几个准则：控制膜层厚度与接触半径比在0.8左右为宜；适当增加梯度层层数和顶层弹性模量，有利于提高抗屈服能力和改善界面处的应力状态；（2）通过对嵌入和滑动摩擦过程的分子动力学模拟，发现表层产生一个与宏观连续介质的塑性流动方向观测一致的45 方向位错；位错造成的不可逆变形和表面的原子堆积，是力的响应不可逆性的原因，也是构成摩擦力的主要因素；温度和嵌入速度对材料变形特性有显著的影响，当嵌入速度大于10 m/s时，屈服强度明显增加；（3）提出压痕裂纹密度系数β半定量判定膜层断裂韧性的方法；并开发出表面强化新工艺；（4）开发出分析表面摩擦学特性的MD-FE复合模拟方法和相应模拟软件。

Of or relating to an imitation; imitative .

模拟的模拟的或与之相关的；模拟的

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。