有限模型

The annulus model captures the key features of rotating convection in full spherical geometry and has been widely employed to study convection, magnetoconvection and dynamos in planetary systems, usually in connection with the small-gap approximation neglecting the effect of azimuthal curvature of the annulus.

圆环模型被广泛用来研究行星系统的对流，磁对流和发电机。通常在这些研究中用到了小间隙的近似，忽略了圆环的环向曲率效应。我们这一工作用数值模拟方法解完全的非线性对流方程组来研究有限间隙的旋转圆环中的非线性对流。

Dendrite growth has been simulated with the phase field method and finite difference schemes on a two dimensional rectangular domain with a uniform square mesh.

采用相场模型和有限差分方法，模拟了过冷纯金属熔体的枝晶生长，计算区域为二维正方形均匀网格。

According to tomato's structural characteristics and its developmental rules of morphology, a dynamic and stochastic architectural model was set up by applying the theory of finite state automation.

根据番茄的形态结构特点及其演变规则，应用有限态自动机的数学理论，研究建立了番茄动态发展的随机结构模型。

The finite strip method is employed for the analysis of skewed multi-box bridges.

应用有限条方法分析多格式斜桥，编制了相应的计算程序，进行有机玻璃模型试验，讨论了这种结构受力性能。

Hybrid Dynamic; time-varying systems; finite horizon; optimal control; Quasi-Variational Inequality; viscosity solution; lower semicontinuous solution; uniqueness; Dynamic Programming; Viability Theory; inventory systems; mathematical model; proximal subdifferential; parabolic equation; nonlinear boundary

基础科学，数学，控制论、信息论混合动态；时变系统；有限时间；最优控制；拟变分不等式；粘性解；下半连续解；唯一性；动态规划；生存定理；库存系统；数学模型；邻近次微分；抛物型方程；非线性边界

Rolling mill; Main transmission system; Finite element method ; contact analysis ; submodel

轧机； 主传动系统；有限单元法；接触分析；子模型

At last we obtain the supremum estimation of the finite time ruin probability and the infinite time ruin probability in the third new risk model.

对第三类风险模型进行研究，得到了有限时间破产概率和终极时间破产概率的上界估计。

These days, along with the fast development of computer and the theory of pulverized coal's combustion, numerical experiment, which can complement the shortcoming of the traditional means, becomes another crucial method to study the above cases The tangentially fired boiler possesses a large part of the market all over the world.

而通过传统试验测量的方法只能够得到有限的数据，而今随着计算机和煤粉燃烧理论模型的发展，数值试验成为了炉内过程研究的另一个重要手段，而且通过数值试验的方法还可以弥补传统试验的不足。

Based on the model, the gas non-dimension Reynolds equation is listed and studied by the two-dimensional Taylor formula and limited difference method.

根据模型，列出了簧片下气体运动的无量纲雷诺方程，并利用二维泰勒展开式和有限差分法对其进行了分析。

Utilizing the real data of ready-made network of ZZMCC,the emphasis is placed on the GSM Network of ZZMCC.Regarding the ZZMCC as the research object, this paper launches systematically the analysis and research of teletraffic forecasting model. So we can modify the parameters to operate the network so as to get the most benefits. Make an overview of the mobile communication optimization analyze the method, Give network general the test results, and bring forward some resolving method according to the practical network optimizations. The capability of the GSM network is becoming more and more saturation for the increasing of telephone subscriber. it is important to improve the quality of the network. This article makes an analysis for the optimization of the network ZZMCC.

接下来利用漳州移动公司的现网实际数据，重点介绍漳州GSM网络本文以漳州移动通信有限责任公司GSM网络作为研究对象，比较系统地开展有关话务预测模型的分析研究和应用，使得网络达到最佳运行状态，更好地为用户服务同时总结了移动通信网的一般优化方法，并从理论出发，给出实际网络优化过程中的一些解决方法随着移GSM用户的增长，网络的规模及容量日趋饱和，因此加强网络优化力度，提高网络质量将是网络建成后的重要工作结合漳州移动网络优化的实际情况，通过技术手段，对改善网络质量作简单分析

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％。