a class of stiffly stable k-step second derivative methods of order 2k 1階剛性穩(wěn)定的二階導(dǎo)數(shù)方法
method of order tracking filtering of rotating machinery based on zero-phase distortion digital filtering with segmentation overlap 基于分段重疊零相位濾波的階比跟蹤濾波法
(3 ) we bring bdf method of order two forward as time discrete method for the two-dimension three-temperature heat conduction equations (3)提出使用二階bdf方法作為二維三溫?zé)醾鲗?dǎo)方程的時(shí)間離散化方法。
theoretical analysis and numer-ical experiments show that bdf method of order two is indeed superior to the commonly used backward euler method and crank-nicolson scheme 理論分析和數(shù)值試驗(yàn)表明該方法明顯優(yōu)于以往常用的向后euler法及grank-nicolson格式。
through case study on the ordering in a university ( which is classified as a danwei, or a workplace ), this paper puts emphasis upon discussing the methods of order construction of the members of the danwei in china city 本文以中國一家高校作為分析的個(gè)案,著重探討了中國城市單位里的人建構(gòu)單位內(nèi)在秩序的方法,分析了單位法秩序的形成和實(shí)施過程中展現(xiàn)出來的行動(dòng)特征,試圖以此案例解釋中國法律現(xiàn)代化過程中面臨的執(zhí)法困境問題。