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After reviewing the mechanism of electromagnetic crystallizer and the development and present situation of the technology of computer simulation of electromagnetic crystallizer, this paper offers the method of the simulation of electromagnetic crystallizer, which could be used emulation of the preparing Al-Sc master alloy.

本论文在综述了电磁结晶器的机理和电磁结晶器计算机仿真技术的发展及现状后，提出采用模拟电磁结晶器来研究制备铝钪中间合金的凝固过程。

The results of simulation show that the missile exhaust plume can move together with the missile in preset curvilinear motion and can keep tangent to the preset curve, so that the realistic simulation effect can be achieved from any viewpoint.

模拟结果表明，导弹尾焰能随预置的导弹曲线轨迹运动且保持与曲线相切，且在任意视点观察时都具有真实感效果。

Describe the pollution simulation model; propose the decomposition principle which is independence between atom model and application, convenience of dynamic composition according to structure of pollution spreading simulation service. The basic idea is that decompensate the entire model, package the every sub model into grid service and deploy it into grid node.

从海上溢漏污染扩散模拟模型体系的构成出发，首先进行污染模拟模型的描述，提出了基本原子模型与实际应用的无关性、动态组合的方便性的模型体系分解原则，以及具体实现的思路；将整个海上溢漏污染扩散模拟模型体系进行分解，进行网格化封装与部署，形成独立的网格服务。

The proposed magnetic circuit decomposition approach is clear in principle, easy in modeling, precise in simulation result, applicable in engineering, suitable for power system electromagnetic transient calculation, and provides necessary simulation means for UHV and EHV MCSR analysis.

文中提出的磁路分解仿真建模法具有原理清晰、建模简便、模型精确、工程适用的特点，适用于电力系统电磁暂态计算，为超/特高压MCSR的分析提供了必要的仿真手段。

According to the computer simulation principle,the article discusses the visual simulation of DEH control system with Simulink software based on MATLAB advanced language and studies system dynamic analysis under various operating condition,so as to improve the control characteristic DEH system.

根据计算机仿真原理，利用 MATLAB高级语言中的 Simulink软件包进行 DEH系统的可视性仿真的探讨，并进行各工况下的系统动态分析，以便提高 DEH系统的控制品质。

Simulation results demostrate that the circuit simulation algorithmperforms better and it is applicable to more kinds of graphs,such as undirected graphs,directed graphs,and mixed graphs.6 At the end of the article,the applications of the algorithm in several fields aredescribed and the value of the method is pointed out.

测试表明，本算法在对几类常见图的同构判定中表现优于Nauty算法，而且可以适用于无向图、有向图及混合图等多种类型的图。6最后给出了电路模拟法在应用领域的成功应用实例，指出了电路模拟法的应用价值。

This paper studies the main geometrical parameter such as angle, height, width, stagger and the upper width in dentation and trapezoid flow path, firstly, uses the single-phase numerical simulation of the computational fluid dynamics technique to analyse the influence of different geometrical parameter on discharge coefficient and flow state exponent of drip emitter. Secondly, uses the two-phases numerical simulation of CFD (1% sand content ) to analyse the influence of the above mentioned geometrical parameter on the contribution regulation of sand and anti-clogging performance. Thirdly, uses the PIV （ particle Tracking Velocimetry ） technique which can see the small-scale flow path to observe and test the trajectories and velocities of solid particles in labyrinth flow path, and analyses the basic factors which can influence the movement characteristic of solid particles and the flow state in flow path.

本文以齿形流道、梯形流道为主要研究对象，以流道转角、流道高，流道宽、偏差量及梯形流道上底宽为主要结构参数，首先应用 CFD 单相流数值模拟技术对不同结构参数灌水器流道水力性能进行模拟，分析了不同结构参数对流态指数和流量系数的影响，其次，应用 CFD 两相流（含沙量为1%）数值模拟技术分析了结构参数对含沙量分布规律和抗堵塞性能的影响，然后，应用 PIV 可视化测试方法测试了固体颗粒在流道内运行轨迹及速度，分析了影响固体颗粒运动特性及流道内流体流态的基本因素，最后，对上述流道结构形式通过模具加工及滴灌带试制，进行了标准化测试（ GB/T 17187-1997 农业灌溉设备滴头技术规范和试验方法与 ISO 标准 ISO /TC23 /SC18 /WG5N4短周期堵塞测试程序），测试结果验证了 CFD 模拟结果，并提出了迷宫结构流道灌水器的抗堵塞设计方法。

The data were applied to simulate the neutron energy spectrum and angular distribution of Lanzhou University 3×10^12 s^(-1) intense neutron generator with 260 keV deuteron beam using MCNP. The interactions of neutron and the materials of neutron generator and laboratary wall were included in this MCNP simulation. The simulation results on the neutron energy spectrum and angular distribution of Lanzhou University 3×10^12 s^(-1) intense neutron generator with 260 keV deuteron beam were presented.

以分割法计算得到的能谱和角分布数据为基础，建立了D-T中子源Monte-Carlo模拟抽样模型，在考虑中子发生器各元件材料及实验大厅墙壁对快中子的慢化、散射和吸收的条件下，采用MCNP程序对兰州大学3×10^12s^(-1)强流中子发生器260 keV氘束流能量下的中子能谱和角分布进行了模拟，给出了模拟结果。

To get rid of the usual assumption that temperature field in diamond water of substrate is uniform or linear so as to make the simulation results closer to the actual conditions under which the diamond water can be fabricared, the plasma jet from a plasma torch controlled by DC electromagnetic field was introduced in simulation.

为了使模拟更接近于金刚石膜的真实制备环境，本文取消了以往对金刚石膜或基体内的温度场常作的均匀或线性的人为假设，而采用对从磁控直流等离子体炬内喷射出的射流仿真计算结果。

The paper first constructs the relating technology framework between coal low temperature self-heating thermal properties parameters and spontaneous combustion, by means of testing on coal samples of diffusibility relative to oxygen, gas-producing simulation in self-ignition process, adiabatic oxidation process, coal spontaneous combustion processing simulation, coal basic physical and chemical parameters, thermal analysis by differential scanning calorimeter , differential thermal analyzer , Thermogravimeter .

通过对试验煤样进行煤对氧的扩散特性试验、煤自然发火过程中气体产物模拟实验、DSC差示扫描量热热分析测试、DTA与TG热分析测试、煤自然发火绝热氧化过程试验、煤自然发火过程模拟试验、煤基础物理化学参数测试的试验研究，就煤对氧的扩散与吸附特性、煤自燃氧化过程中的热力特性与气体产物特性及其与煤自然发火过程之间的相关特性进行了较系统的研究，初步建立了煤低温氧化自热热物理特性参数与煤自然发火之间相关联的技术内涵。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。