查询词典 mathematic

It was found that the predicted results of the mathematic model are good when the number of samples is 15 in calibration model and that in validation model is 6 (the total is 21) In that case, the value of the root mean square error of the estimation of calibration and the root mean square error of prediction of validation are very small(0.0115 and 0.0105 respectively) and almost the same.

结果发现，当校正集样品数为15检验集样品数为6（总样品数为21）时，使用外部检验法建立的数学模型预测结果较好，其校正集的均方根误差和检验集的预测均方根误差（分别为RMSEE和RMSEP）均较小（分别为0.0115和0.0105），而且很接近。

In chapter 5, the paper demonstrate the knowledge detection based on the experiment platform of rotating machinery, using the knowledge detection methods ofcombinational optimization based on mathematic statistics and associated rules.

在第5章介绍了基于数理统计和关联规则综合考虑的知识发现方法，仿真实现基于高速旋转实验平台的知识发现实例。

There is great difference between the actual systems and the mathematic models because of the uncertainties. So the engineering problem can not be solved satisfyingly if it is designed only based on the nominal system.

不确定性的存在使实际对象与所用数学模型之间有很大差别，如果仅仅根据标称系统来设计控制器，会使大量工程控制问题无法获得满意结果，甚至严重影响系统性能。

As the evolution process of the drainage channels on the scarp slope is concerned,the construction of their mathematic models and the visualization methods are discussed.

对断层崖上的沟谷演化过程，我们也对其数学模型的构造和可视化方法进行了探讨。

Aimed at the mathematic problem in the model of the pendulum oscillation,the paper introduces the study on the existence of odd-harmonic solutions to second order semi-linear differential equation which describes the model of the pendulum oscillation by using upper and lower solution method monotone iterative technique and the Schauder fixed point theorem respectively.

针对摆型振动模型中的数学问题，分别采用上下解方法、单调迭代法及Schauder不动点定理研究了摆型振动模型的二阶半线性微分方程奇调和解的存在性。

We present a mathematic expression of the changing wavelet model of the seismogram.

本文给出了地震记录变子波模型的一种近似数学表达式。

Application and development of platelet transpiration cooling technology in LRE;2. The Computation and Analysis of Heat Transfer of Platelet Cooled Microchannel on the High Temperature and High Pressure Gas Wall;3. Physical-mathematic model is built for the process of evaporation and combustion of the two interactive arbitrary size semisphere pearly transpiration droplets in platelet hole structure under micro-gravity condition.

针对微重力条件下层板孔隙结构中两个相邻任意尺寸半球形珠状发汗的蒸发与燃烧过程，建立了相应的数学物理模型；在双球坐标系中求解分子扩散传质偏微分方程，得到发汗液珠的分子扩散组分分布的解析解和扩散速率表达式；分析得到在常温、高温条件下蒸发以及燃烧状态下发汗液珠的相互作用因子式，计算了相互作用的发汗液珠在不同条件下的发汗蒸发量以及变化趋势。

The veracity of the object mathematic model cannot reflect the human body and organ sense directly.

对象数学模型的准确程度，不能直接反映人体及其器官的感受程度。

Samples show that the power-efficiency distributing matrix model has the characteristic of clear physical meaning, sententious mathematic description and convenient to parallel calculation.

算例表明，能效分布矩阵模型具有物理意义明确、数学描述简洁、便于并行计算等特点。

In this thesis, the mathematic model of servo system is set up, the contour error in straight line and circular interpolation movement on the duplex servo-system is analyzed, and the method to raise the contour accuracy of the movement track is put forward.

本论文建立了数控伺服进给系统的数学模型，对双轴进给系统在作直线和圆弧插补运动时形成的轮廓误差进行了数学分析，并指出了提高试验台运动轨迹轮廓精度的方法。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。