operator n. 1.操作者,机务员;司机,驾驶员;【军事】电话兵;【电话】接线员,话务员(=telephone operator);【电报】报务员。 2.(外科)施行手术者。 3.掮客,经纪人。 4.【语法】功能词。 5.【数学】算子,算符。 6.经营者;〔美国〕工厂主,资方。 7.投机商人,骗子;精明圆滑的人。 8.【戏剧】灯光助理员。 an operator's set 话务员的电话机。 a telegraph operator 电报报务员。 an unitary operator 公正算符。 a mine operator 矿山经营者,矿主。
Local error estimate for method of operator splitting for convection - diffusion equations 扩散方程算子分裂方法的局部误差估计
In this model , the operator splitting technique , staggered grid technique and finite difference method were used 采用算子分裂法、交错网格法、有限差分法进行计算。
Some new projection methods are presented for solving general variational inequalities based on the operator splitting technique , including three - steps and k - steps iterative algorithms 基于算子的分裂技巧,给出了解一般变分不等式的几种新的投影算法,包括三步和k步迭代算法。
In this paper the basic principle of the method of characteristics is described , and is constructed an explicit scheme for dam break simulation of one - dimensional dam instant all break waves flow of a low dam with rectangle section and a huge dam with trapezia section , and of two - dimensional dam instant part break waves flow with simplest space operator splitting 本文模拟了一维矩形断面低坝和梯形断面巨型坝瞬间全溃的洪水波演进过程,给出了与分析解的比较,并结合算子分裂的特征线法对二维瞬间部分溃坝时洪水波的演进过程进行了数值模拟。
The direct analysis method has more efficient than the line programming for the shakedown analysis of contact surface layer , therefore , the mentality of shakedown analysis of contact surface layer was introduced based on the direct analysis method as follows : first , the direct method for shakedown analysis was presented and its application to a two - dimensional rolling / sliding contact problem was demonstrated . the direct method consists of operator split technique , which transforms the elastic - plastic problem into a purely elastic problem and a residual problem with prescribed eigenstrains , and an incremental projection method to determine the eigenstrain 这些方法各有创新,其特点是计算速度快、收敛性好及精度可靠,计算规模避免了弹塑性随动强化分析的非线性的影响,并使弹塑性问题转化为残余问题和线弹性问题,适用于滚动、滚滑及滑动接触失效分析,从而有效地解决了接触体安定性分析与裂纹萌生寿命预测的实际问题,也是本文对表面强化接触失效的安定分析成为可能。