查询词典 hyperbolic

The analytical expressions of two kinds of pulse width of ultrashort hyperbolic secant pulses were deduced,i.e.the pulse width at full width at half maximum which was used generally and the root-mean-square pulse width which was precise.

利用理论推导和数值模拟方法，给出了超短双曲正割脉冲较为严格的均方根脉冲宽度与通常使用的半高全宽脉冲宽度的解析表达式，并对两种脉冲宽度进行了比较。

This article uses the step-by-step Fourier method and normalized NLSE was solved, and analog input for the first-order,second-order and third-order hyperbolic secant optical pulses under the conditions of the evolution of optical pulse transmission.

本文使用了分步傅里叶方法对归一化NLSE 进行了求解，并模拟了输入为一到三阶双曲正割光脉冲条件下光脉冲传输演变情况。

An advanced numerical analysis indicates that two coaxial hyperbolic secant beams, provided that they satisfy the functional relations of FWHM with amplitudes of this type of PVSS, will be very close to solitons when they propagate in PV crystals.

进一步的数值模拟结果表明，当入射双曲正割光束满足复色光伏孤子半高宽与中心光强的关系时，双曲正割光束在晶体中的传播就非常接近孤子，表明复色光伏孤子对于小的微扰是稳定的。

The comparison of the two kinds of pulse width shows that the FWHM pulse width is different from the RMS pulse width for the subcycle hyperbolic secant pulses,and the absolute phase affects the pulse width seriously.

研究结果表明，对于亚周期（半高全宽脉冲宽度小于一个光学振荡周期）双曲正割脉冲，均方根脉冲宽度与半高全宽脉冲宽度有较大的差异，并且绝对相位对均方根脉冲宽度的影响很大。

According to the definition of hyperbolic sine, flow stress constitutive equations of T122 and T91 steels had been developed.

根据双曲线正弦函数的定义，建立了T122钢和T91钢热变形条件下流变应力双曲线本构方程的显式表达式。

Returns the hyperbolic sine of x .

返回 x 的双曲正弦值。

Inverse hyperbolic sine -- in radians !!!

反双曲线正弦--以弧度为单位！！！

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。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。