理论模型

In this paper,the magnetic suspension applied characteristics of Rare earth Permanent magnet material in the vibration isolating system are studied,and the method with which spatial flux density and magnetic force is calculated quantitatively is presented.

对稀土永磁材料在隔振系统的磁悬浮应用特性作了研究，给出了永磁系统空间磁密及磁力定量计算的方法，设计了一种新型磁悬浮式隔振装置，在运用试验及应用人工神经网络的方法对其良好悬浮特性和非线性刚度特性进行了综合分析的基础上，引入实验修正系数完善了理论模型，为磁悬浮隔振器的设计提供了理论依

First of all, the theoretic models were established to describle the physical fields of massecuite in an evaporative crystallizer, and the computer program TESU was given to solve the models and determine the temperature and supersaturation of mother liquor.

作者首先建立了描述蒸发式结晶设备中糖膏物理场的理论模型，同时编译了求解这些模型的计算机程序TESU等，可用来确定该类设备中糖膏母液的温度和过饱和度。

Simultaneously a formula for calculating maximum power point is also obtained.

在理论模型的基础上，提出了一种方便实用的简化硅太阳能电池的数学模型，并得出了最大功率点的计算公式。

Among them, the most important one is that the characteristics of mid-latitude irregularities cannot be deducted from equatorial theories. The midlatitude model is very important and useful.

资料分析结果对我们的理论模型结果进行了验证，同时也提出了一些新的问题，促使今后理论的进一步发展和完善。

Due to the fact that the method based on local linearization is usually lost in local minimum values and the optimization solution is dependent on the selection of initial solution,the standard genetic algorithm has po...

该算法利用拟网格法初始种群和综合交叉策略，克服了早熟收敛现象，从而提高了遗传寻优的效率。理论模型反演与其它方法比较，结果说明遗传算法具有不依赖初始模型，不容易陷入局部极小，多点多路径概率搜索，以及隐含并行性等优点。

Static and modal analyses of vibration system are performed by ANSYS finite element method to prove the reliability of the theoretical model.

利用ANSYS软件建立了振动系统的有限元理论模型，对其进行了静、模态分析，证明了理论建模的正确性。

A semi－empirical tire model of non－steady state cornering characteristics is presented,based on a theoretical non steady state tire model.

在轮胎非稳态转向特性理论模型的基础上，本文提出了一种半经验模型。

Combustion instability in liquid rocket engine is investigated with theoretical analyses, numerical simulations and experiments. Nonlinear science, such as Nonlinear Dynamics, Non- equilibrium Thermodynamics, and Wavelets, is introduced in the studies.Nonlinear oscillation equation of chamber pressure is established.

本文结合非平衡热力学、小波分析、非线性动力学等非线性学科，建立燃烧稳定性理论模型，发展两相喷雾燃烧非定常数值模拟程序，利用激光测粒系统，发动机高频热试系统等测试手段，重点围绕液体推进剂的化学动力学过程，对燃烧不稳定进行了较为系统的理论、仿真和实验研究。

In the present paper, two new hypotheses are proposed that the outward normal of the dendrite surface is parallel to the gradient of the actual supercooling, and that the dendrite growth is capable to minimize the solute transfer .

但是，以往的研究中，枝晶组织和枝晶生长这两个密切相关的问题一直被分隔开来进行研究；在稳态枝晶生长理论研究中，由于枝晶界面真实形状问题没能解决，迄今为止，比较有希望的理论模型都是建立在"枝晶界面的旋转抛物面假设"这样一个早已被认定不是枝晶界面真实形状的"基础"上。

Secondly, this part measures the present condition of college unemployment in three indices: first rate of college employment, the situation of graduates who want to have further study, the rate of overeducation.

论文的第四章以失业理论模型为基础，结合中国具体国情，对中国大学生失业现象的本质进行了理论分析。

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％。