模型理论

Based on the structural theory of general systems this paper sets forth a general mathematical model of material levels which include atoms molecules and molecular congeries .

微观还原论无法揭示物质涌现性的根源，以及物质结构与性质之间的相互关系，基于一般系统结构理论，建立了物质在原子，原子基团，分子和分子聚集体等层次上的统一的数学模型，即物质系统结构模型，通过对该模型的数学分析，研究了环境与物质结构，物质行为，物质状态之间的相互关系。

The structure feature of the sensor was described in comparison with the classical Stewart platform-based six-component force sensor.By using the finite element method,the elastic dynamics theoretical model of the sensor was established based on the conditions of displacement consistency and force balance.According to this model,the numerical analysis was carried out,and the variety relationship curves between the natural frequencies and the structural parameters are plotted.

描述了该传感器相对于经典Stewart平台六维力传感器所具有的结构特点；利用有限元法，采用位移协调和力平衡条件建立了传感器弹性动力学理论模型，依此模型进行数值分析，绘制了固有频率与各结构参数间变化关系曲线；并利用ANSYS软件建立了传感器有限元模型，进行了振动模态分析，得到其固有频率和振型。

Because of the importance of currency crises and contagion, the academics and governments have focused on this phenomenon.

第一代货币危机理论中的Hotelling模型（1931）、最初的Krugman模型和第一代货币危机模型。2。

It must be pointed out that not only the conceptual model of GeoFeature-CA is standing at the moment of academic studying and has great continuative studying space but also GFCA-Urban model is standing at the moment of practical study and the precision and authenticity of GFCA-Urban model need improved.

必须指出的是，GeoFeature-CA概念模型还处于理论探讨阶段，留有巨大后续研究空间，GFCA-Urban模型也还处于尝试性研究阶段，模型的精度和真实性尚待提高。

It leads to significantly lowered and expanded profiles for the Reynolds correlations, and a larger temperature gradient in the central part of the super-adiabatic convection region but a small one near the boundaries of the convection zone.

研究发现，如果适当选取自由参数的值，则不论是采用局地还是非局地Reynolds应力模型的太阳模型都可以得到比标准太阳模型更符合观测结果的理论振动频率。

A method of building the fuzzy model with constant-value consequence for MIMO complex processes is presented by means of the iterative learning algorithm of fuzzy model consequent parameters, and the convergence of the iterative learning algorithm is proved according to the convergent theorem of bounded positive-term series, moreover, the effectiveness of the presented fuzzy modeling method is also demonstrated by a simulation example.

深入讨论了常值后件模糊规则模型与映射的关系，并证明这种模糊模型所表示的模糊系统具有在紧集上逼近任意实值连续函数到任意精度的能力，为将这种模糊模型用于复杂过程的建模和控制作了一些理论准备。

This paper founds a bidding strategys frame based on the game theory. This paper combines the game theory and the principal-agent theory and expounds the cost-plus based on the bidding and the bidding based on the contract.

本文建立了一个基于博弈论的招投标机制设计的研究框架，从而为招投标机制设计提供了一个规范的分析思路；另外本文还将完全信息动态博弈与委托—代理理论结合起来，开创性的提出了基于招投标机制的最优成本补偿合同和基于合同的招投标模型，不仅可以包括线性合同的激励，而且还能解决基于博弈论的非线性激励合同问题；在提出的相似标的概念基础之上，本文还综合了相关模型，针对相似标的的特点，给出了几个相似标的的招投标模型。

Based on AIEM and MIMICS models, the co-relation among radar backscatter, vegetation backscatter and surface backscatter were analyzed, and the linear relation between cross polarization data and vegetation backscatter component was found. Then a simplified vegetation model was constructed after solving the problem of the vegetation backscatter component.

在裸露地表理论模型AIEM和植被散射模型MIMICS模拟分析雷达后向散射与植被散射、地表散射之间相互关系的基础上，分析发现了交叉极化数据与植被体散射量存在的线性关系，从而解决了雷达总后向散射中植被体散射量的问题，进而建立了简化的植被模型。

The thesis can be divided into five parts as follows: First, the structural characteristics of finned-pipe evaporator are analyzed. After selecting suitable microelement controller, the heat-transfer and mass-transfer processes are analyzed for every microelement under the conditions of dryness, wetness and frostiness. Based on previous equations, some parameters of frostiness are confirmed and the frost-growing model is set up under frost condition. Some hypotheses are postulated and with the help of the equation of mass-conservation, energy-conservation and momentum-conservation, the evaporation model which fits in the dynamic simulation is built, which set a solid foundation for system simulation. Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. Third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet-parameter on evaporator. Fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio-parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping.

本文的主要内容如下：1对翅片管蒸发器结构特点进行分析，选取适当的微元控制体，就干、湿和霜工况下对每个微元分别进行传热传质分析，基于经验关系式确定霜的有关参数，对于霜工况下的霜生长建立模型，经适当假设，运用质量守恒、能量守恒和动量守恒方程建立适合动态仿真的蒸发器数学模型，为系统仿真奠定基础； 2对蒸发在大扰动下的开、停机过程，运用动态集中参数模型进行分析和计算，为更好地描述制冷系统运行的全过程奠定基础，同时也为制冷系统实现自动控制提供一定的理论基础； 3对蒸发器正常运行过程，运用动态分布参数和参数间定量耦合的观点来分析和计算，为更好地了解稳态工况下各点参数的变化情况及各入口参数对蒸发器动态特性的影响即蒸发器性能对各参数变化的敏感性； 4编写翅片管蒸发器动态特性仿真计算程序，可以计算不同边界条件和初始条件下的制冷剂热力参数、空气温湿度和霜厚度分布场，实现对翅片管蒸发器在干、湿和霜工况下的动态仿真。

The paper makes use of the theory of Grey system forecast to resolve the ammunition and rocket system development cost evaluation, establishing the GM model of Grey systems and cumulative residual error model, then correcting the GM forecast model.

该文应用灰色系统预测理论解决弹箭系统研制费用估计问题，建立了灰色系统GM预测模型和n次累加残差模型并对GM预测模型进行修正。

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％。