逼近的階 的英文怎麼說

中文拼音 [bījìndejiē]
逼近的階 英文
order of approximation
  • 逼 : Ⅰ動詞1 （逼迫; 給人以威脅） compel; force; drive; threaten 2 （強迫索取） extort; exert pressure ...
  • 近 : Ⅰ形容詞1 （空間或時間距離短） near; close 2 （接近） approaching; approximately; close to 3 （親...
  • 的 : 4次方是 The fourth power of 2 is direction
  • 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
  • 逼近 : 1 （靠近 接近） press on towards; gain on [upon]; approach; crowd on; close in on; draw near 2 [...
  1. Its biquadratic finite element approximation is considered and under the appropriately graded meshes, quasi - optimal order error estimates in the - weighted h ^ 1 - norm, up to a logarithmic factor in the singular perturbation parameter, are proved

    然後，考慮此方程在分層網格剖分上的雙二次有限元逼近，在-加權h ^ 1 -模意義下得到了至多相差一個關于攝動參數對數因子的擬最優階收斂的誤差估計。
  2. Approximation of multivarite periodic function anddegree of approximation

    多元周期函數的一類逼近及逼近階估計
  3. In chapter ii we give the representation theorem of the anisotropic class besov and get the estimation of m - term approximation of it. in chaper iii the rate of m - term approximation of the anisotropic low smooth class is camputated

    在第二章先給出了各向異性besov類的表現定理，求出它的m項三角逼近的漸進階，並給出定理應用。
  4. In chapter two, we consider full disceret scheme of mixed finite element methods for the following initial - value problems of linear integro - differential equations of parabolic in this chapter, we give the error analysis of this full discrete scheme and get optimal error estimates for the discrete solutions of u and p

    第二章討論下述線性拋物型積分微分方程初邊值問題混合有限元方法的后差全離散格式。給出了該全離散格式的誤差分析，得到了離散解逼近未知函數u以及伴隨速度p的關于空間和時間的最優階誤差估計。
  5. Finally, a method is put forward to construct the nurbs curves on sphere, which extends the de boor recursive algorithm in r3 to one on the sphere by replacing the geodesic distances for the lines and studies their many geometric properties analogous to those in euclidean spaces, such as the differential property, the local property, the parameter invariance under a projective transformation, and so on

    兩種方法均給出誤差估計，使逼近螺線可達到任何預先給定的精確階。最後，給出球面nurbs曲線生成演算法：用球面上測地線? ?劣大圓弧代替直線段，將歐氏空間r ~ 3中的deboor遞推演算法推廣到球面上構造麯線。
  6. On the other hand, the function of the rough regulation is the same as the open loop system. the a / f controller adopts the approaching increment method in the smooth regulation and the pi controller for non - oscillation or stable increment method for low - speed oscillation in the micro - regulation

    噴氣占空比粗調階段為對map圖執行取值操作；細調階段為執行增量逼近法的階段；微調階段為執行pi環節或執行低速振蕩微調。
  7. Degree reduction approximation of rational b 233 ; zier surfaces

    曲面的降階逼近
  8. We design the qmf based on the criteria of minimum frequency bandwidth and the qmf that possess linear phase, and give a example of a signal decomposed and restructured. 4. in the research of channel dropping filters, we use 5 rank butterworth filter to approach the digital filter. we design lc unpower netwok and rc power network. we manufacture lc lowpass and highpass filter ， and test their performance ; we simulate the appliance of the channel dropping filters in the system

    4 .在頻帶分割濾波器的設計方法中，用5階巴特沃斯濾波器逼近最小頻寬正交鏡像濾波器，對無源和有源濾波器進行了模擬設計；設計並製作了無源lc低通和高通濾波器，測試了它們的性能；並對分割濾波器在系統中的應用進行了計算機模擬。
  9. And cmac neural network adjusts weights locally, making its approximation quickly. in addition, the output only involves in linear computation, so it is suitable for online application

    此外， cmac網路的接受域是一個階躍式的臺階函數，適合於逼近負荷和相應的網損最小的拓撲之間的不連續的關系。
  10. The integral method via a scaling and squaring algorithm with the pade approximation is presented. the three - stage lobatto iii a formula is applied to structural dynamic time history analysis. and the three - stage lobatto a formula to use hermite third order interpolations to solve interpolating middle input between two boundary points is present, which provides more accurate solutions

    提出了基於自適應變尺度pad函數逼近的精細積分方法；建立基於lobatto a一階代數微分方程邊界問題數值求解技術求解結構動力學問題的時程分析方法，提出了中間插值點hermite三次插值lobatto a數值逐步積分時程分析方法。
  11. All eyes instinctively fastened on that french column moving down upon them and winding in and out over the ups and downs of the ground

    大家的目光不由地望著那支沿著階地蜿蜒曲折地行進並向他們步步逼近的法國縱隊。
  12. The other, called " integral method ", is got by converting the problem to degree reduction of bi - variable polynomials with upper bounds using approximation theory and the relationships between chebyshev bases and bernstein bases

    另一個是將問題轉化為二元多項式的保上界降階問題，再由近似逼近理論和chebyshev基與bernstein基的轉換關系，求得區間有理bezier曲面的降階逼近的「整體法」 。
  13. The author ' s work gives new way, which is beneficial to real time interaction and can efficiently reduce computing time as well as data storage amount. these algorithms can find good use in numerical machining, robotics, form - position tolerance and computer graphics. ( 3 ) degree reduction for nurbs curves and surfaces by applying the theory of the best uniform approximation of chebyshev polynomials and the explicit matrix representation of nurbs curves, this thesis centers on the research of the explicit nearly best approximation of multi - degree reduction of nurbs curves

    以上關于等距曲線的幾何逼近與代數逼近的演算法改革了當前國際圖形界只能對基曲線沿法矢方向平移定距離的點作近似逼近的固定模式，創造了利於交互操作，能有效地減少計算量及數據存儲量的新方法，可在數控加工、浙江大學碩士學位論文機器人、形位公差學、計算機圖形學中獲得很好的應用（ 3 ） nurbs曲線曲面降階應用nurbs曲線的顯式矩陣表示及chebyshev多項式逼近理論，以實現nurbs曲線顯式一次性降多階的近似最佳逼近為目標進行了研究
  14. The obtained results in the paper are as follows : ( 1 ) the expansion of fourier series of orthogonal trigonometric polynomial for conditional mathematical expectation and function of random variable ; ( 2 ) the best approximation of trigonometric polynomial about another random variable for function of a random variable ; ( 3 ) the best approximation order of trigonometric polynomial for function of random variable

    摘要獲得了如下結果： （ 1 ）條件數學期望及隨機變量函數的三角多項式級數表達； （ 2 ）一個隨機變量關于另一個隨機變量的三角多項式的最佳逼近； （ 3 ）隨機變量函數被隨機變量三角多項式最佳逼近的階。
  15. An optimal hankel norm approximation model reduction method is used to reduce the equations of motion to lower order size. it is shown that the method is steady, efficient by numerical emulating. firstly, the influence of viscoelastic layer thickness and material properties, piezoelectric actuator layers thickness on the vibration suppression are investigated

    採用最優hankel最小階逼近降階法對主被動混合阻尼結構的控制狀態方程進行降階，以附加主動約束阻尼層的梁結構為例，進行了數值模擬，結果表明：該方法是一種穩定的、高效的、魯棒性很好的降階方法。
  16. High - order compact - type schemes with rational and pad approximation approaches

    逼近的高階緊致型方法
  17. In order to describe a higher degree of smoothness, the fourth part has investigated the extended results of pointwise approximation of bernstein operators with the help of linear combinations of bernstein polynomials and properties of modulus of smoothnes s

    第四部分為了刻劃高階光滑性，利用bernstein運算元的線性組合和光滑模的性質，討論了bernstein運算元點態逼近的更廣泛結果。
  18. This paper is devoted to nonlinear approximation, namely, m - term approximtion of anisotropic smooth periodic functions. nonlinear approximation is the important part of approximation the - ory. it means that the approximants do not come from linear spaces but rather from nonlinear manifolds. the advantages of nonlinear approximation show that one can achieve a given accuracy of approximation while assuming less smoothness on the function in the nonlinear case than is necessary in the corresponding linear approximation. nonlinear approximation is used significantly in many applications, such as image processing, noise removal and the solution of operation equations and so on

    非線性逼近與線性逼近最大的區別在於所用的逼近子空間不是固定的，而是依賴于被逼近的函數其主要優點是對光滑度較低的函數仍可以得到較高的估計階。隨著小波和樣條的廣泛使用非線性（ m項）逼近成為較熱門的話題，它在圖象處理，聲的傳播，運算元方程的求解等方面都有很多應用。
  19. High - order compact - type schemes with rational and pad 233 ; approximation approaches

    逼近的高階緊致型方法
  20. Aes - ccm mode use counter mode application simple, systematic expense little, may raise the efficiency of encryption. aes algorithm is presented in allusion to differential cryptanalysis and linear analysis. therefore, the security of aes algorithm in current stage have enough guarantee

    而aes演算法是針對差分分析和線性分析提出的，它的最大優點是可以給出演算法的最佳差分特徵的概率及最佳線性逼近的偏差界，具有抵抗差分密碼分析及線性密碼分析的能力，因此aes演算法的安全性在現階段是有足夠保障的。
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