查询词典 nonlinearity

A diffractive unit which can reduce the effect of the nonlinearity of the photoresist recording material to produce a diffractive device with brilliant color, and describes a method for recording.

一种可降低记录光阻记录材料非线性效应的绕射单元，它可以产生明亮多彩的绕射图案，并揭示其记录的方法。

The absolute stability of neutral delay systems with sector-bounded nonlinearity is studied.

研究了具有扇形有界非线性的中立型时滞系统的绝对稳定性。

In big science times, this kind of nonlinearity characteristic shows prominently: The totalite, fluctuant and accelerative of science development.

在大科学时代，这种非线性特征表现尤为突出：科学发展的整体性、发展的波动性、发展的层次性以及发展的加速性。

Boolean function; algebraic degree; correlation immunity; resilient; nonlinearity; balancedness

论文导师戚文峰，论文学位硕士，论文专业密码学

Chapter 4 presents five design criteria of S-boxes of block ciphers, develops a method of constructing large S-box by use of algebraic group operation, proves the balance property of these large S-box, tests the strict avalanche and independence of avalanche variables properties of S-boxes in NEA cipher, analyses the nonlinearity and best linear approximation of the S-box, and finally defines the differential of input/output of S-boxes of this cipher and analyses the distribution of them.

第二部分即第三章，提出了一种新的分组密码类NEA(NEA-4A，NEA-8A，NEA-4B，NEA-8B)，完整地描述了该密码类的加解密过程和密钥协议；证明了NEA-4B和NEA-8B的完全对合性和没有不动点的性质；分析了该密码类的安全特征；具体地介绍了实现该类密码的途径；给出了NEA-4A的计算机C语言程序和样本数据。

An extended hyperbolic mild-slope equation, which can take such terms as wind input, bottom friction and nonlinearity of wave into account, here has been deduced into a parabolic one in the form of a series of governing equations described with complex amplitude. It became a complete wave model when integrated with corresponding physical and imaginary boundaries, and can be solved through the improved Crank-Nicholson or the well known Alternating Direction Implicit difference method, both of which can accelerate the convergent speed , expand limitation of the mathematical method and improve the quality of the solution.

本文基于综合考虑底摩阻、风能输入及非线性影响的推广双曲型缓坡方程，将其进行转换，产生一个演变方程，其复振幅控制方程为抛物线性，并采用ADI差分格式、改进的Crank-Nicholson格式及相应的物理和虚拟边界条件进行求解，以提高数值模拟的适用性、数值计算的稳定性、收敛速度及精度。

Using the photorefractive saturable nonlinearity, we fabricate both types of step and gradient photorefractive phase components through the ways of digital recording and analog recording respectively under different ratios of light intensity I/Id.

利用光折变饱和非线性，首次在不同光强比条件下通过数字和模拟记录两种方式分别制作了阶跃型和梯度型位相元件。

In this paper, based on the finite element method, a three-dimensional finite element model was selected to simulate performance of the self-tapping screw connections and the failure modes of the panel, considering material nonlinearity and changing-status nonlinearity.

本文运用有限单元法，建立三维实体有限元模型，考虑了材料非线性与接触非线性，对钢板－自攻螺钉连接的受力情况和破坏模式进行了细致研究。

First of all, this paper analyzes the distributing situation of sectional temperature of two steel frame models within an hour utilizing the transient thermal analyse module of ANSYS;Secondly, carries on the failure analysis to two steel frame models at high temperature and obtains the fire-resistant limit and critical temperature of steel frame, utilizing the static nonlinear analyse module of ANSYS and considering the influence of geometry nonlinearity and material nonlinearity; Finally, according to the fire-protection designing requirement of structure, deduce a method to computer the thickness of fireprotection layer for steel structure and ask out the thickness of fireprotection layer of two steel frame models according to this method .

首先，利用ANSYS瞬态热分析模块，分析出两个钢框架模型在一小时内钢框架的截面温度场分布情况；其次，利用ANSYS静力非线性分析模块，综合考虑几何非线性及材料非线性影响，对钢框架模型在高温下进行失效分析，分析出两个钢框架的耐火极限及临界温度；最后，根据结构防火设计要求，推导出一种钢结构防火层保护厚度的计算方法，并据此方法求出两个钢框架模型的防火层厚度。

The paper also studies on the signal processing of pincushion 2D PSD and measure position nonlinearity. The position Error and the position nonlinearity are smaller than the standard of the pincushion 2D PSD of Hamamatsu, which reach the purpose of design.

本文还对枕型二维PSD的信号处理技术进行了研究，并对其进行了位置线性度测量，与日本滨松的枕型PSD器件参数比较，我们制作的枕型PSD的位置线性度达到或者优于其标准，达到了设计的目标。

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。