有限模型

Middleware model of client in QPE flat is designed and implemented .according to QPE development flat,using static invation , we must cut down strongly MICO System .implementing the least of ORB of client and according with CORBA Specification , we solve the problem of limited resource .

该中间件模型依据QPE开发平台的特点，采用静态调用方式，对已有MICO进行了大幅度的裁减，不但实现了客户端ORB最小化，而且符合CORBA规范，从而解决了资源有限的问题。

This paper takes the law of diminishing marginal utility as a foundation, puts forward a disequilibrium macroeconomic model in individual consumption desire limited, and elucidates its dynamic process; and puts forward a new micro-mechanism of unemployment; while unveiling the mystery of real wage which has long puzzled the economists passingly.

内容摘要］本文以边际效用递减规律为基础，提出一个个人消费欲望有限的非均衡宏观经济模型，并论述了它的动态过程；提出了新的失业的微观机制，同时顺便揭开了长期困扰经济学家的真实工资之谜。

CFD-fluent simulation software and measurement are applied to establish the math models of exhaust gas concentration distribution and boundary conditions. Finite volume methods and PISO are used to solve the differential equations of exhaust gas distribution in a kitchen. After the adjustment and comparison with those from the practical measure, the simulation results of CO2 and CO concentration distributions accord with experimental ones.

运用CFD-fluent模拟软件和实测相结合的方法，建立废气的浓度和扩散分布的数学模型与边界条件，利用数值分析法中的有限体积法和PISO算法对厨房内废气分布的微分方程进行离散和求解，对模拟结果进行校正并与实际测试结果进行比较。

However, it takes too much time and space for simulating a model with a relative large scale. A pseudospectral time domain method has the advantage of saving time and computer memory for the same simulation accuracy as that of FDTD.

通常采用的时域有限差分法在网格足够细的情况下能够精确地模拟井中雷达，但对于相对较大的模型，要得到较好的精度其所需要的时间和计算机内存都非常大。

In order to select optimal grid and good computation efficiency to recover the entire signal, aiming at the Ricker wavelet commonly used in forward modeling, we analyzed the alias and signal restoration problem in finite-difference method based on spatial sampling theorem and seismic wave traveling regulation in media with different velocity, to derive quantitative relationship among the modeling grid size, minimum velocity of model layer, and recovered main frequency of wavelet.

为了选择最佳的网格尺寸以及以最小的计算量完整地恢复出信号，针对地震波场正演模拟中经常使用的Ricker子波，根据空间采样定理和地震波在不同速度介质中的传播规律，分析了有限差分算法中的假频和信号恢复问题，推导出模拟网格尺寸、模型地层的最小速度和能够恢复的子波主频之间的近似定量关系，并用数值算例验证了这一关系。

To investigate the effect of different laminar cooling patterns on the microstructure and mechanical properties of plates in rolling process,the changes in temperature and microstructure of plate in such cooling process were calculated simulatively by coupling finite difference method with microstructural evolution models,thus predicting the ferrite grain size and phase composition under different cooling patterns .

为了研究层流冷却方式对中厚板组织和性能的影响，用耦合有限差分和微观组织演变模型模拟计算了中厚板层流冷却过程中的温度和组织变化，预测出了不同冷却方式下的铁素体晶粒尺寸和相组成。

In this paper, a procedure of nonlinear analysis of the cable-stayed bridge was developed based on the nonlinear theory of structures using the finite element method, in which the vehicle-bridge interaction element based on the concept of dynamic condensation is used. The influence of vehicles on the response of the cable-stayed bridge is studied by employing the spung mass model and the bridge model with and without considering cable vibration modes.

本文拟应用非线性力学分析程序与有限元素数值计算法，建立斜张桥的非线性分析程序，应用VBI的车桥互制元素配合动态浓缩的观念，以悬浮移动质量模拟车体对斜张桥的影响，并对考虑与不考虑缆索振动模态两种分析模型，做一对应分析比较。

In this paper the principle of substructure analysis of matrix displacement method is used to condense superstructural stiffness of tall building to the boundary stiffness of the foundation beams, the subsoil model of the layers summation procedure of finite compressible layer is introduced herein.

本文采用矩阵位移法的子结构分析原理将高层建筑的上部结构刚度缩聚为基础梁的接口刚度。同时，引入有限压缩层的分层总和法地基模型，通过基础梁与地基界面处矩形面积荷载下沉降积分变换，获得地基表面的柔度矩阵。

This paper presents the principle of traveltime velocity tomography using Finite Difference method.

介绍了利用有限差分方法进行地震走时资料速度反演的基本原理与方法，并对理论模型进行了正演和反演。

Energy deposition at the interface of the particles caused by micro-explosive welding in explosive consolidation of metal powders is analyzed by symmetrical impaction model of uncompressible liquid. Two-dimensional equation of energy in the flow field of explosive welding is deduced and solved by finite difference method. Then the distribution of the temperature in the flow field is calculated on the basis of considering the adiabatic compression.

摘 要：以不可压缩理想流体对称碰撞模型对金属粉末爆炸烧结中由微爆炸焊接引起的颗粒界面附近沉积的能量进行了分析，在考虑热传导效应的基础上推导出了焊接流场中二维形式的能量方程并用有限差分法对其进行了求解，在考虑冲击绝热压缩贡献的基础上计算出了焊接流场中的温度分布。

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％。