查询词典 hyperbolic cotangent

The function between stable flow stress and strain rate, temperature can be expressed more suitably by the Arrhenius relationship modified by hyperbolic sine function, which means that the hot compression deformation is controlled by thermal-activation.

双曲正弦函数形式修正的Arrhenius关系可以更好地描述稳态流变应力和应变速率、变形温度的关系，表明该材料的热压缩变形是受热激活控制的。

An accurate and simple computational method was developed to determine the apparent activation energy and material parameters of the hyperbolic sine constitutive equation based on one parameter nonlinear least squares regression.

基于单参数非线性最小平方法，提出了一种优化求解双曲线本构方程中表观激活能和其他材料常数的方法。

The high-temperature thermal simulation experiments of 1Cr12Ni2W1Mo1V alloy show that the high temperature compression flow stress of 1Cr12Ni2W1Mo1V alloy accords with hyperbolic sine function.

对1Cr12Ni2W1Mo1V合金进行的高温热模拟试验表明，该材料高温压缩下的流变应力符合双曲正弦函数关系。

The interrelations of flow stress and strain rate can be described by a hyperbolic sine function for 7075z aluminum alloy during the process of high temperature deformation.

其高温塑性变形过程中的流变应力与应变速率之间可用双曲正弦函数来描述。

The flow stress increases with increasing the strain rate, and decreases with increasing the deforming temperature, which can be described by a constitutive equation in hyperbolic sine function with the hot deformation activation energy of 209.84 kJ/mol, and can also be described by a Zener-Hollomon parameter.

该合金热压缩变形的流变应力行为可用双曲正弦形式的本构方程来描述，也可用Zener-Hollomon参数来描述，其变形激活能为209.84 kJ/mol。

Heat resistant steel T122; hot deformation ; hyperbolic sine constitutive equation ; critical strain

T122耐热钢；热变形；双曲线本构方程；临界应变量

The method uses an implicit iterative scheme with a hyperbolic sine transformation for the matrix potential, takes the advancing front self-adaptive grid, and resolves problem of too much account in calculation to dry earth's surface by fixed grid method. Results indicate that calculation speed is increased greatly and errors are less than by fixed grid method.

该方法使用了水土势双曲正弦变换的隐式差分格式，并采取了自动向下搜索的空间网格形式，解决了干燥地表固定网格计算量过大的问题，同时计算速度大大提高，计算误差小于固定网格法的误差值。

Keywords hyperbolic sine equation;flow stress;activation energy;non-linear least squares

双曲线方程；流变应力；激活能；非线性最小平方

The material parameters in the hyperbolic sine constitutive equation were determined with regression analysis, and the DRX activation energy was thus obtained to be 269 kJ/mol. The relationship between critical strain, peak strain/stress and the dimensionless parameter Z/A were established by linear regression.

采用回归法确定了双曲线本构方程中的材料常数和动态再结晶激活能(269kJ/mol)，并建立了临界应变、峰值应变和峰值应力与无量纲参数Z/A之间的关系。

In order to select the most appropriate method for the actual situation at the South China Sea, this paper designed models and used data from some region in the South China Sea to compare four RTP-L methods (the hyperbolic sine method, the suppression RTP filter method, the direct damping method and the pseudo-inclination method) in the wavenumber domain which change the RTP operator.

本文针对其中4种在频率域对化极因子做处理的方法(双曲正弦法，压制因子法，直接阻尼法，伪倾角法)，设计模型进行对比，并用南海某地区的实测数据进行4种方法的化极效果对比，选出一种最符合南海地区实际情况的化极方法。

He's a pretty westernised kind of guy.

他是一个非常西化的人。

National spirit is the moral kingpin for a nation to realize common ideal and goal.

一、中华民族精神的基本内涵党的十六大报告指出：在五千多年的发展中，中华民族形成了以爱国主义为核心的团结统一、爱好和平、勤劳勇敢、自强不息的伟大民族精神。