有限模型

The main innovation of the thesis includes the research thinking of multireservoir operation is put forward in the integrated optimal operation of reservoir and canal irrigation systems, and the optimal control theory is introduced, and the limitations in the earlier works are removed.

本文主要的创新之处在于采用水库群调度的思路研究有限供水条件下水库和田间配水整合优化调度问题，并将优化控制理论引入到本文研究中，解决了前人模型中的缺陷。

On the basis of Ohm's and Kirchhoff's law, The mathematic model that can be used to caluculate the 3—D current distribution in alumina reduction cell was derived, and the computer program was compiled by finite differential method.

根据欧姆定律和基尔霍夫定律，用有限差分法导出了求解铝电解槽内三维电流分布的数学模型，编制了计算程序，在国内首次较准确地计算了铝电解槽内三。。。

However, as data in humans in limited, basic studies in laboratory animal s have been used as models.

然而，因为在人类研究数据有限，基础研究常集中于动物模型。

The key technologies are studied and the simulation program is coded using C langrage to obtain the fields such as velocity field and temperature field. Volume of fluid method is used to capture the free surface of the material.

采用"移动的网格"处理计算区域边界的移动问题，实现对真实物理过程的数值模拟，并将模拟结果与比较成熟的商品化有限元软件DEFORM-3D的模拟结果进行对比，表明所建立的有限体积法模拟模型有效、可靠。

Material is schematized at mesoscale level as an assembly of particle elements in the BPM, and the nearest neighboring particle elements are connected through a lattice of elastic beam elements.

粱一颗粒模型中，材料在细观层次上被离散成颗粒单元集合体，相邻颗粒单元由有限单元法中的弹脆性梁单元连接。

The 2005 model added a lazy susan storage bin in the floor where the spare tire used to be in the previous model, eight passenger seating with limited availability, and a 60/40 fold flat seat (like the Toyota Sienna's).

2005年的模型层中添加存储懒惰的苏珊本地方使用的备用轮胎将在以前的车型，8个乘客座位有限，而60/40座椅放平。

In the theoretical study, we discussed the choice of the finite element types, the determination of system parameters, and analysis of the loudspeaker's sound pressure level curve.

在分析方面，从有限元素的选择、系统参数的测量、整体模型的建立以及声压计算，都有详细的说明。

Thirdly, with FEM analysis software ANSYS, this paper has fulfilled appropriate pavement FEM models. Selecting right loading locations and parameters, this paper has simulated contact behaviors of limited dimension cement concrete pavement with joints afterwards. The mechanics response results and load transfer ability results of matchboard joints have obtained and the effect of reinforcing steel bars has gained too.

3利用大型通用有限元分析软件ANSYS，建立合理的路面模型，选择合适的荷载位置和荷载参数，模拟有限尺寸设接缝水泥混凝土路面的接触行为，得到水泥混凝土路面的力学性能和接缝传荷能力等结果，并考虑了有无钢筋对路面性能的影响。

A new model based on the hierarchical MRFhalf tree model is proposed for only one image can be obtained in image segmentation, whose MPM (maximizer of the posterior marginals) algorithm is inferred too.

针对图像分割问题中观测数据有限的情况，提出了一种新的基于离散分层MRF的半树模型，推导出了它的最大后验边缘概率算法。

Using the kinetic model, the coagulation kinetics was calculated by the method of finite difference.

采用有限差分法对建立的混凝动力学模型进行了数值计算。

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％。