recurrence curve 中文意思是什麼

recurrence curve 解釋
重復率曲線
  • recurrence : n. 1. 復回,重現,再發;來去,反復,隱現。2. 【數學】遞歸,循環;回想。3. 〈罕用語〉倚賴。
  • curve : n 1 曲線;彎曲;彎曲物。2 曲線規 (=French curve);【機械工程】曲線板;【棒球】曲線球;【統計學...
  1. Based on the theory of stochastic finite element, the structural parameters of frame - shear structure including stiffness and mass and damping are simulated to be stochastic variables. by solving recurrence equation of stochastic finite element, the duration curve of mean value and standard deviation of seismic response can be obtained for every floor of frame - shear structure. an analysis is thus given to the effects of independent variation and simultaneous variation of structural parameters on the seismic dynamic response of frame - shear structure. as shown by the results, with regard to frame - shear structure, the effect of variation of strucural parameters on the change of mean value are chiefly the increase of standard deviation of response. variation of stiffness will cause the response of frame - shear structure to variate greatly ; variation of mass shows less effect ; and variation of damping shows insignificant effect. the effects of simultaneous variation of various structral parametres on seismic response are only slightly greater than the effect of stiffness variation alone

    以隨機有限元理論為基礎,將框剪結構的剛度、質量、阻尼等結構參數為隨機變量.通過求解隨機有限元的遞推方程,得到框剪結構各層的地震動力響應均值和標準差歷時曲線.分析結構參數單獨變異,以及同時變異對框剪結構地震響應的影響.研究結果表明,對框剪結構而言,結構參數的變異對響應的均值變化影響都不大,主要是增大響應的標準差.剛度的變異性將引起框剪結構的響應發生大幅度變異,質量的變異性影響稍小,阻尼的變異性影響不顯著.結構各參數的同時變異,對框剪結構地震響應的影響,僅比剛度單獨變異的影響稍大
  2. In the use of the recurrence definition and the matrix presentation of nurbs curve, the algorithm of curve is outlined from the correspondent algorithm of b - spline, concerning on the evaluating, derivative, integral, knots inserting and degree elevating

    利用nurbs曲線基函數的定義和nurbs曲線的矩陣表示,從b樣條的相關演算法出發,可解決nurbs曲線的求值、求導、求積演算法和nurbs曲線的節點、升階演算法等問題。
  3. After this work, the paper discusses the property of uniform curve. when the multiplies of end knots equal the order of the basis, the inner knots are also the simple knots, the rational b - splines are translated to the rational b zier - like basis. studies show that these basis have the similar properties with the b zier basis, and satisfied the new recurrence relation

    其次,在低階情況,研究了形狀參數對曲線的影響,並且討論了均勻情況下曲線獨有的特性,當k階有理b樣條端節點重復度達到k時,而內節點重復度為零時,這種有理b樣條轉化為一種有理b zier基函數,它們的很多性質和b zier基有驚人的相同點,滿足新的遞推關系
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