查询词典 numeric

These parameters can be calculated easily. We proposed some method to build up the model. Our work including: Understand the physical meaning of MTF, Select image quality assessment parameter ,Curve fitting based on basic numeric analysis method,curve fitting based on Neural Network..

本文首先理解理解 MTF 的原理，选择了合适的图像参数，并分别用数值关系和神经网络提出几种拟和数据模型的方法，对模型的正确性分别进行了检验，并给出了相应的结论。

Against the compound transformation problem of existed shield tunnel under construction of foundation pit of the Beixinqiao station in Beijing No.5 subway line, by ANSYS, combining with geological condition and according to the different working condition, three-dimensional numeric models are built and the emulation of the construction process is carried on.

针对北京地铁五号线地铁车站基坑施工条件下既有盾构隧道的复合变形问题，基于ANSYS，结合场地的水文地质和工程地质条件，按照不同的工况建立了三维数值模型，并进行了施工过程的模拟通过对结果的对比和分析，揭示了在不同施工状态下，基坑周围土体、支护结构及既有盾构隧道之间相互作用的过程和机理，以及由此引起的围岩变形的分布与变化规律。

As a numeric analysis method, the finite element method has been becoming a more and more important action in analysis of gear transmission system.

有限元方法作为一个强有力的数值分析工具，在齿轮传动系统的分析中起到了越来越大的作用。

MAIN OUTCOME MEASURES: Comparisons of numeric density,surface density and average size of synaptic conjunction.

主要观察指标：各组大鼠突触数密度、面密度、突触连接带的平均面积比较。

A detailed model of non-linear parametric excitation vibration coupling the stay cable and the girder, in which the static sag as well as the geometric non-linearity are considered, is proposed in this paper. Based on several numeric examples investigated by the Galerkin method composed with the integration strategy, several kinds of factors effecting stay cable parameter vibration are studied. Another parameter vibration model by the axial excitation is presented and the corresponding nonlinear equations are derived. The smallest excitation amplitude,the transient state and steady state resonance amplitudes, and the changing characteristics of the axial force are obtained by using harmonic balance method. According to numerical examples calculated by numerical integration method, the effects of the inner damping of the stay cables are investigated.

本文创新地提出了斜拉桥拉索-桥面耦合参数振动模型，推导了索-桥耦合非线性参数振动方程组，联合Galerkin法及数值积分方法，对各种特性的拉索进行了数值求解，得出了影响拉索参数振动的各种因素；提出了斜拉索受轴向端激励参数振动模型，导出了模型的非线性振动方程，使用谐波平衡法得出了产生参数振动需要的最小激励幅值、共振时瞬态及稳态的振动幅值及索拉力的变化特性，并用数值积分方法对实际斜拉桥拉索进行了计算，分析了拉索阻尼对参数振动的影响。

In this paper, we proved that there exists only one contact point between a pair of non-circular gears working under the designed pitch curves when they are manufactured by involute cylindrical gear cutter in numeric control slotting machine. Under this manufacturing condition, the pair of non-circular gears can mesh accurately.

证明了采用渐开线圆柱齿轮刀具在数控插齿机上加工的1对非圆齿轮副传动时，在其按设计的已知节曲线工作时，两非圆齿轮副的齿廓具有单一的接触点，即能保证正确的啮合关系，为深入分析非圆齿轮副的传动机理提供了前提。

Increase the numeric value on a high-grip track or with power units that have lower torque the high side and brake side can be set independently

增加数值在高夹子轨道或与有更低的扭矩的电源装置高边和闸边可以独立地设置

In general, reduce the numeric value On a slippery rack or with models that have powerful response, and increase it on a high-grip track or with power Units that have lower torque the high side and brake side can be set independently.

一般来说，减少数值在一个溜滑机架或与有强有力的反应的模型，并且增加它在高夹子轨道或与有更低的扭矩高边和关闸边的电源装置能独立地设置。

On the basis of mechanics of materials and finite element method, the theoretical analysis, numeric simulation and imitative calculation were carried out on the stiffness of HSK tool system. Calculation formula of the turning angle-bending moment of HSK cutter shank was presented, basic law of the variation of stiffness of HSK tool system was revealed, thus provided the theoretical basis on reasonable employment of HSK tool system to develop its maximum benefit and at the same time possesses important theoretical significance and practical value for developing the new typed tool system of the independent knowledge property right of our country.

基于材料力学理论及有限元法对HSK工具系统刚度进行了理论分析和数值模拟及仿真计算，给出了HSK刀柄变形转角－弯矩的计算公式，揭示出HSK工具系统刚度变化的基本规律，为合理使用HSK工具系统，使其发挥最大效益提供了理论依据，同时对开发我国自主知识产权的新型工具系统具有重要的理论意义和实用价值。

A numeric method of calculating invariant probability distribution for chaotic map is derived. The method is particularly useful for some realistic experimental systems whose transfer probability matrixes are easy to be determined.

提出一种计算混沌映射不变分布的数值方法，该方法特别适合于求解从实验中获得的样本数少，但转移概率易于确定的实际混沌系统的不变分布。

The good news is that after formatting from the command line to FAT32 (format /fs:fat32 /a:4096 drive:) all but one of the problematic games that I tested work perfectly.

好消息是，从指挥线后格式化了FAT32(格式/曾荫权：了FAT32/答：4096年径：)所有问题，但其中的游戏测试工作，我很好。

In Amsterdam. He is a Dutch painter, draftsman, and etcher of the 17th century, the greatest artist of the Dutch school, a master of light and shadow whose paintings, drawings, and etchings made him a giant in the history of art.

伦勃朗是一位17世纪画家、绘图家、版画家，荷兰学派的最伟大艺术家，他的明暗法的大师，他的绘画、素描和版画使他成为一位艺术史上的巨匠，其画作体裁广泛，擅长肖像画、风景画、风俗画、宗教画、历史画等。