非线性

Exceptionally large nonlinear optical response in C60 had been reported, and diacetylene complexes have the large NLO suspceptibilities, so the novel idea of introducing diacetylene to C60 to improve the NLO suspceptibilities was supposed.

富勒烯具有优良的非线性光学性能，共轭双炔类有机分子有较大非线性光学系数，将C60与双炔类化合物结合在一起设计非线性光学材料是一个有意义的设想。

Yield rule, intensify rule, fluxion rule, types of contact and diathermanous model of metal cutting were also analyzed detailedly.

本文在直角自由切削过程分析的基础上，讨论了金属切削过程中的弹塑性变形理论和温度场理论，详细分析了屈服准则、强化准则、流动准则、金属切削传热模型、接触类型等问题，并利用有限元的基本思想，建立了直角自由切削应力场和温度场的有限元模型，进行了状态非线性、材料非线性和几何非线性的热力耦合分析，重点研究了切屑分离标准的确定、表面接触类型的处理等问题。

Based on the analysis of the process of free orthogonal metal cutting, the theory of elastic-plastic distortion and temperature field was discussed. Yield rule, intensify rule, fluxion rule, types of contact and diathermanous model of metal cutting were also analyzed detailedly. The FEA model of stress field and temperature field of free orthogonal metal cutting were established by the fundamental idea of FEA. State nonlinear, material nonlinear and geometry nonlinear thermal-stress coupling were analyzed by FEA technology. The separate criterion of chip and dispose of contact types were research emphatically.

本文在直角自由切削过程分析的基础上，讨论了金属切削过程中的弹塑性变形理论和温度场理论，详细分析了屈服准则、强化准则、流动准则、金属切削传热模型、接触类型等问题，并利用有限元的基本思想，建立了直角自由切削应力场和温度场的有限元模型，进行了状态非线性、材料非线性和几何非线性的热力耦合分析，重点研究了切屑分离标准的确定、表面接触类型的处理等问题。

The deep knowledge repository of temperature profile was yielded based on the determinant mathematical model, which increased the 'extrapolative ability' and 'reliability'. Simulation results have proved that the model presented in this paper is simple, and can satisfy the control requirements.In order to predict and control, A real-time prognosticate model of temperature profile for a reverse flow reactor was built based on dynamic RBFNN with online correcting model parameters.

5基于改进的RBFNN的非线性内模控制策略充分利用神经网络的自学习及非线性逼近能力，建立流向变换反应器的动态模型和逆模型，非线性内模控制器由逆模型和带有一个调节参数的鲁棒滤波器组成，并采用递推最小二乘在线校正模型参数，仿真结果验证了此控制方案的有效性。

The nonlinear hyperbolic conservation laws of the transient flow of the media in gas pipeline are hard to he solved, so, the control conservation laws are constituted of mass, momentum arid energy conservation laws, TVD/Godunov hydrid algorithm is used to simulate the transient flow in gas pipeline, and the traditional splitting approach processing nonlinear convection in momentum equation is dismissed ,the convection tern; is directly processed, in the way, the stablization of the algorithm and emulating accuracy of the transient flow are greatly improved.

针对管道中介质瞬变流动的非线性偏微分方程组难以解析求解的问题，由质量、动量、能量三个偏微分方程构成的控制方程组，应用TVD/Godunov混合算法数值模拟天然气管道中气体的瞬变流动，摒弃了传统的差分方法时动量方程非线性时流项的线性化处理，而直接处理非线性对流项，从而大大提高了算法的稳定性和管道瞬变流动的仿真精度。

In (1), the nonlinear function f is a known nonlinear continuous function of x , and the control gain g is a known nonlinear continuous and locally invertible function of x .

在（1）中， f是一个关于已知的非线性连续函数 x 的非线性函数，控制增益 g是关于 x 的已知的连续非线性的函数。

The inverse model of the system which can be established by neural network according to the UAV's movement is connected with the object controlled so that the nonlinear and correlative system will become linear and irrelated. PID reactive control is used to improve the performance.

根据无人机发生故障时非线性运动的特点，确定适当的神经网络结构建立无人机非线性系统的逆系统，并与被控对象串连可以对非线性耦合系统进行线性化解耦，然后引入PID反馈控制进一步提高神经网络逆控制系统的性能。

Compound with the distribution character of Cu in different geological bodies, it is illustrated that the metallogenesis which different geological bodies had gone through in this area is different, and the intensity of metallogenesis which quartzite monzodiorite had gone through is higher, and in favor of the concentration of metallogenic element.BP neural network technique is a in common used non-linear fit method now.

BP神经网络技术是目前常用的一种非线性拟合方法，它的作用在于提供了一种非线性静态映射，能以任意精度逼近任意给定的非线性关系，具有学习和推广的功能。

Nonlinear wave equation; nonlinear intensity; solitary wave solution; nonlinear differential-difference system; compacton; peakon; noncontinuous solitary solution; bifurcation

非线性波动方程；非线性强度；奇异孤立波；非线性微分—差分系统；紧孤立了；尖峰孤立子；不连续孤立波；分岔

In this paper, a novel two-dimensional kernel maximum scatter difference discriminant analysis (2D-KMSDA) is developed for the extraction of nolinear feature by using the well-known "kernel trick". It extracts much more effective nolinear feature and made the true recognition rate raise saliently. What's more, it also offers a unified framework for two-dimensional nolinear discriminant analysis.

本文通过引入著名的&核技巧&，将二维最大散度差线性鉴别分析扩展到非线性空间，提出了一种新的二维核最大散度差鉴别分析方法，该方法不仅抽取了图像中更加有效的非线性鉴别特征，使正确识别率显著提高，而且为二维非线性鉴别分析提供了一个统一的构架。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。