The special solution formula of a third order ordinary differential equation 一類三階常微分方程的特解公式
Solutions of three new second - order quadratic differential equations and their general solution formula 新三類二階二次微分方程的解法及其通解公式
The suitable nutrient solution formula was calculated according to the water quality in beijing 根據(jù)對主要大量元素的實際吸收情況,推算網(wǎng)紋甜瓜合適的營養(yǎng)液配方。
Finally , the solution formula of the semiboundless mixed problem of the fractional diffusion equation is obtained 最后得到分?jǐn)?shù)階擴(kuò)散方程半無界混合問題的求解公式。
The specified solution formula derivation of second order non - homogeneous linear differential equation with constant coefficients 二階常系數(shù)非齊次線性微分方程特解公式的推導(dǎo)
The solution formula of dwell time is deduced by using the pulse iteration method and the smoothing fourier transition method , and the formula can be simplified referring to workpiece shape . according to the anastomotic status of the tool and workpiece surface , we present the new model of the inherent relation among local pressure density , removal rate , convergence ratio and residual errors , and the corresponding formulas are given . the forming cause of the edge effect in the polishing process is analyzed , and the means which reduces the edge effect is put forward 2 、針對計算機(jī)控制光學(xué)表面成形( ccos )的加工方式、誤差收斂特點,研制了去除函數(shù)呈高斯分布的雙轉(zhuǎn)子結(jié)構(gòu)研拋模;采用脈沖迭代法、平滑因子傅立葉變換法推導(dǎo)出駐留時間的算法,求解過程中根據(jù)工件面形的特點作了各種形式的簡化;提出了工件表面和研拋模的吻合誤差與局部壓強(qiáng)、材料去除率、收斂比之間內(nèi)在關(guān)系的數(shù)學(xué)模型,并推導(dǎo)出相應(yīng)的計算公式;分析了邊緣效應(yīng)產(chǎn)生的原因,在加工過程中采用相對壓力因子對去除函數(shù)進(jìn)行修正,可以消除邊緣效應(yīng)的影響。