階差分 的英文怎麼說

中文拼音 [jiēchāfēn]
階差分 英文
difference of n-th order
  • 階 : 名詞1. （臺階） steps; stairs 2. （等級） rank 3. [醫學] （耳蝸的三個螺旋管的任一個） scala 4. [數學] order 5. [地質學] stage
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  1. This dissertation focuses on the application of data fusion in two - phase flow regime identification. following is the main contribution of the dissertation. 1 ) based on quartile and first order differential, a new outlier detection algorithm is presented, experiments show that the method combining with low pass filter can remove gross error and unwanted frequency components

    本文的主要工作與創新點在於： 1 ）將分位數方法與一階差分法相結合，提出了一種基於一階差分的粗差剔除方法，該方法與低通濾波器的結合可以有效去除兩相流壓力波動信號中的粗大誤差以及信號頻帶以外的頻率成分。
  2. On the equation ( the equation is abbreviated ) with initial condition and periodic boundary condition a system of ordinary differential equations to time was built by the four - order difference method, then the precise integration method was used to solve the system

    摘要對于方程（方程式略）的初始值與周期邊值問題，利用四階差分化為關于時間變量的常微分方程組，然後採用精細時程積分法。
  3. The cross - well seismic forward modeling program can be applied to geological model that has different velocities and dips to calculate cross - well seismic synthetics for given sources and receivers by ray tracing the least traveltime or four order differential wave equation

    研製的井間地震正演合成記錄的程序，可用來對不同速度、不同傾角的地質模型，通過最小旅行時的射線追蹤或四階差分聲波波動方程，計算出對于給定震源和給定檢波點的井間地震合成記錄。
  4. At the meantime, during the procedure of pre - processing, according to the character that the illumination conditions on the scene of the expressway toll collection frequently change a lot, the algorithm of first difference combining the method of fixing the threshold of binarization via accumulating the points was used to complete the job of extracting the outline of the image

    在圖像預處理過程中，根據高速公路收費站點光照條件不斷變化的特點，採用一階差分演算法並結合累積像素點確定二值化閾值的方法，完成圖像邊緣輪廓的提取工作。
  5. Oscillation of second order difference operator

    一類二階差分運算元的振動性
  6. Positive solutions of boundary value problems for n - order difference equations

    階差分方程邊值問題的正解
  7. Numerical solution of poisson equation with non - uniform mesh finite difference scheme

    求解雙曲守恆律的均勻二階差分格式
  8. Oscillatory and asymptotic behaviour of unsteady second - order difference equation

    不穩定型二階差分方程解的振動性及漸近性
  9. Oscillation of unstable type first order difference equation with continuous variable

    連續變量不穩定型一階差分方程的振動性
  10. Positive solutions of second order difference equations with positive and negative coefficients

    具正負系數二階差分方程的正解
  11. Positive solutions for a class of boundary value problems of fourth order difference equation

    一類四階差分方程邊值問題的正解
  12. An existence theorem of solution to boundary - value problem governed by second - order difference equation

    二階差分方程邊值問題的一個存在定理
  13. The numerical modeling of 3 - d elastic wave equation using a high - order, staggered - grid, finite difference scheme

    交錯網格高階差分法三維彈性波數值模擬
  14. A high order difference scheme for initial - boundary condition problem of one - dimensional linear hyperbolic equation

    一維線性雙曲方程初邊值問題的高階差分格式
  15. Several key technology is particular expatiated in the paper such as eliminating the queer data by one rank difference method, the arithmetic of drawing a roundness with lattice liquid crystal, designing the iir digital filter, auto changing measure scale and software dependability design technique

    本文詳細闡述了幾個關鍵技術：一階差分法剔除奇異項，點陣液晶的作圓演算法、 iir數字濾波器的設計、自動量程轉換和系統的軟體可靠性設計等。
  16. By comparing the error of dispersion, it illustrates that the staggered uncolocated grid yee ' s scheme is the best one among 2 order schemes. using the same method for 2 order scheme, we analysis the high order fdtd schemes. the method for constructing good - performance high order fdtd schemes is points out, and a new 4 order scheme which is coincident for e and h is given out

    然後，將該分析方法應用到高階fdtd的研究中，指出了構造高階差分格式的原則和方法，並提出了一種新的電磁對稱的4階fdtd方法，研究並給出了它和其他兩種電磁不對稱4階fdtd的色散特性，結果表明高階方法具有比2階fdtd方法小的多的數值色散誤差。
  17. Based on the fourth - order difference formula of the second derivative term, a fourth - order finite difference method is developed for solving two - points boundary value problem

    摘要從中心差分公式出發，利用二階微分的四階差分公式，對兩點邊值問題得到了一種四階精度的差分格式。
  18. The key is that the tone feature is introduced to be the feature parameter. that is to say, the fundamental frequency, the derivative of fundamental frequency and its derivative are used as the feature parameters

    關鍵技術是引入聲調的特徵量作為特徵參數，利用基頻、基頻的一階和二階差分，作為特徵參數，以提高識別率。
  19. This paper puts forward a kind of fast and effective method of muting value based on the curvature formula, and it can automatically discern mutating data using half two rank difference method and get rid of the false data

    該方法以曲線的曲率公式為理論基礎，用相鄰點間的半二階差分對突變點進行自動識別，並將其剔除。
  20. For applications involving shocks, second order schemes such as tvd schemes are usually adequate if only relatively simple structures are present in the smooth part of the solution. however, high order shock capturing schemes ( order of at least three ) are more efficient than low order schemes when a problem contains rich structures as well as schocks

    在計算含有激波但光滑區不存在復雜波系結構的流場時，二階差分格式如tvd類格式已能夠得到比較理想的數值計算結果；然而，對于即含激波，光滑區又富含各種波系結構的流場，高階高精度格式的激波捕捉格式相對低階格式具有更高的解析度，更能夠反映流場的真實流動。
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