模型理论

Thirdly, surrounding rock deformation and failure process of layered rock mass in high geo-stress was reappeared through the physical models with different dip angle of rock stratum, and the stress change and failure discipline in the direction of vertical to bedding plane was definitely determined.

根据共和隧道砂质页岩的力学性质，运用相似理论，构筑不同倾角层状岩体的物理模型，研究了高应力条件下层状岩体围岩应力变化及变形破坏过程特征，确定了层状岩体在垂直于层面方向上围岩应力变化规律及破坏形态，揭示了深埋隧道层状岩体的破坏机理；物理模型实验研究得到的围岩应力变化规律及破坏特征与数值模拟分析的结果基本一致，同时也验证了横观各向同性弹塑性本构模型的正确性。

After achieving the solution of the mathematical model,a binomial productivity equation of gas-water well with two-phase flow in formation was derived in consideration of the influence of formation damage and non-Darcy effect,thus establishing the theory of transient inflow performance relationship curve of gas-water well.

文章基于质量守恒原理，建立了气水两相地层瞬态渗流的数学模型，通过定义气水两相拟压力函数，将渗流数学模型线性化，在获得数学模型解后，考虑地层损害和非达西效应的影响，推导出在地层中为水气两相渗流的气水同产井的二项式产能方程，从而建立了气水同产井瞬态流入动态关系曲线的理论。

In this paper the utility analysis is introduced into the basic model for e-financial innovation diffusion by utilizing biological population model as its benchmark so that the point of saturation can be determined more accurately. in addition, empirical studies have been done using data of taiwan credit card and mainland bank card. the result provides theoretic reference for the strategic decision of financial institutions and for the policy-making of the supervisors.

本文在将生物种群模型引入网络金融创新产品扩散的基本模型的基础上将效用引入扩散过程的分析中，从而更准确地判断饱和点的产生，并针对中国台湾信用卡数据和中国内地银行卡进行了实证研究，模型的研究可以为金融机构的战略决策以及管理部门的产业政策制定提供理论参考。

Hybrid\|pencil beam model,which has been obtained by embedding the bipartition model into Fermi\|Eyges multiple\|scattering theory,shows the potential broad prospect in clinic because of the good calculation accuracy and efficiency.

将双群模型计算的宽束电子的能量沉积与Fermi Eyges理论的侧向解相结合来构造电子笔束模型，即混合笔束模型。

This conclusion support the knee structure design of biped with important theory and ideal.

这里从传统的两足步行平面连杆模型入手，提出了用于判断步态优化的能量指标，并以此为基础，建立了不同膝关节折向的不同步行速度下的动力学模型，并进行了仿真，这里结论为两足步行机的设计提出了一些新的理论依据和设计思路。1平面简化模型如图1所示，建立经典的两足步行平面简化

Based on the complex adaptive system theory and Cellular Automaton model,an urban growth model is developed.

将复杂适应系统理论与CA模型结合，构建城市增长仿真模型，并应用该模型对西安市的城市增长过程进行仿真。

Based on the foregoing analysis, the critical condition of realizing ductile/brittle transform is confirmed, and then, the model of ductile grinding of engineering ceramic is built.

以陶瓷材料压痕断裂力学、线性断裂力学和微观断裂物理学为理论基础，系统的分析和讨论了磨削加工过程中微裂纹的产生机理及其影响因素，建立了裂纹分布模型，并根据位错产生微裂纹机制，对磨削过程微裂纹的形成采用位错塞积模型来描述，从能量平衡的角度，讨论位错裂纹的稳定性与磨削应力的关系，确定了材料脆性去除和塑性去除转换的临界条件，最终建立以此为基础的工程陶瓷材料延性域去除模型。

It is of instructive significance to the design of robust controller when the closed-loop gain shaping algorithm is used to decide the magnitude of the model perturbation.

为了给出闭环增益成形算法的模型摄动形式，用小增益理论和H 混合灵敏度算法的结果进行推导，发现闭环增益成形算法的模型摄动形式与灵敏度函数的形式相同，该结论对用闭环增益成形算法设计鲁棒控制器时系统所能忍受的模型摄动大小的确定具有指导意义。

The influence vectors F〓(the column vector of reliability matrix) and the residual vector V are regarded as the analysis factors instead of γ〓 and ν〓, the correspondence coefficient of F〓 and V is as the parameter to snooping the outliers.

提出了观测量随机模型的误差分析方法和理论，研究了随机模型系统误差和粗差的消除方法，同时研究了高精度GPS平差处理中随机模型的建立方法。

New concepts of grey absolute relation coefficient and grey relative relation coefficient are proposed and a new computational formula of grey relation grade is developed, which forms a new theoretical model for analysis of grey relation.

第二章，简述了目前几种常见的灰关联分析模型，指出了这些分析模型存在的不足及其导致不足的原因，然后给出了灰色绝对关联系数及相对关联系数的定义，进而建立了灰色关联分析的新的理论模型。

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％。