計算效率 的英文怎麼說

中文拼音 [jìsuànxiàolǜ]
計算效率 英文
computational efficiency
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 算 : Ⅰ動詞1 （計算數目） calculate; reckon; compute; figure 2 （計算進去） include; count 3 （謀劃;計...
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 計算 : 1 （求得未知數） count; compute; calculate; reckon; enumerate 2 （考慮; 籌劃） consideration; pla...
  • 效率 : productiveness; efficiency; productivity; workpiece ratio
  1. The calculation of the37 # transonic compressor rotor shows that the simulation results of the author ' s multi - grid scheme fit fairly well with those of professor denton j. d. ' s, however, the author ' s converging speed is faster

    與nasarotor37的計算結果對比表明，本文多重網格演算法的計算結果與dentonj . d .的計算結果十分接近，而在提高計算效率方面比dentonj . d的多重網格演算法更加有效。
  2. A highly efficient numerical algorithm by using multi - grid method ( mgm ) is introduced to solve the three dimensional field distribution in the present paper. formulae of the restriction and prolongation in mgm computation is deduced, and a 3d program of mgm is accomplished, which can solve the field distributions in electron optical systems for various electrostatic lenses. the 3d field distribution in an electrostatic concentric spherical model is tested with mgm algorithm and an algorithm based on finite difference method ( fdm ) respectively. comparing these two results in view of computational efficiency and computational accuracy, it appears that mgm is superior to fdm in solving electrostatic field distribution for the electron optics problem. this paper shows that the 3d field computation using mgm greatly improves the computational efficiency of field distributions in electron optical systems and shortens the computational time

    本文將一種高效率的數值計算方法? ?多重網格法引入三維靜電場分佈的計算，多重網格法利用限制和延拓可迅速求得滿足精度要求的場分佈.研究了求解各種靜電透鏡電子光學系統三維場分佈的多重網格法程序，驗算了靜電同心球模型的三維場分佈.通過與目前在場計算中常用的有限差分法進行比較，可以看出多重網格法的計算效率和計算精度優于有限差分法.本文表明利用多重網格法計算三維場大大提高了場分佈的計算效率，縮短了計算時間，因此為后續計算打下了良好的基礎
  3. In the process of arithmetic design, newton " method is used to compute power flow of network. graph theory knowledge is used to determine all paths from generator to load. to improve efficiency, thesis use branch expunction method to optimize the node order

    在演算法設計過程中，採用牛頓拉夫遜法進行潮流計算得到系統潮流分佈，利用圖論原理中的路徑搜索演算法確定了發電機對負荷的供電路徑，此外為了提高潮流跟蹤的計算效率，利用了支路消去法進行節點順序的優化。
  4. ( 4 ) on the efficient method for the dynamical core of the new generation multi - scale forecasting model i ) we present a new multi - level sparse approximate inverse preconditnioner for the complicated 3 - d helmholtz equations in the new generation weather forecasting model. as a result, the new sparse approximate inverse preconditioned gcr and gmres algorithms are given and successfully applied in the dynamical core. numerical tests show that the new algorithms perform very efficiently, and can greatly improve the efficiency of numerical model

    對此，本文提出了一種基於逐層門限技術的近似逆矩陣稀疏模式預選方法，並構造了相應的稀疏近似逆預條件子，結合gcr演算法和g州[ r衛s演算法，首次將逐層門限稀疏近似逆預條件子應用於新一代多尺度預報模式動力內核的實際計算，數值實驗表明這里給出的方法可以大大提高數值模式的計算效率。
  5. Compared with the static method and kinematic method computing deformation directly, the method presented here bring high efficiency when calculating the influence surface of the internal force for curved - bar grillage

    與靜力法及直接求解位移的機動法相比，使曲桿梁格內力影響面計算效率得到了很大提高。
  6. The calculation accuracy and the calculation efficiency of hexahedron mesh generated by author are higher than tetrahedron element

    所剖分的六面體單元的計算精度和計算效率都高於四面體單元。
  7. Software - practice and experience, mar. 1994, 24 : 327 - 336. 13 han d, xiao c, zhou r et al. load shedding for window joins over data streams

    分別採用了窗口計數器預估數組和頻率數組來維護相應統計信息，並在實際中使用樹狀數組取代頻率數組以提高計算效率
  8. In recent years, plentiful and substantial fruits achieved by the lb method in simulations of hydraulics, multiphase flows, flows in porous media and heat transfer as well as magnetohydrodynamics, have revealed a broad perspective of application of this method, it will become a powerful competitor to the conventional approaches. in order to absorb the recent achievement in theory and application of the lb method, explore new ways in hydraulic computation to promote the development of practice, some work is car ried out in this thesis, as following : advances in the theory research and application, deductive process of the d2q9 model and some other commonly used models of the lb method are summarized. based on the hydrodynamic and general boundary conditions, a new joint boundary condition is presented, it integrates advantage of the two conditions above and obtains very good results in dealing with all kinds of boundaries of flow fields

    為了消化和吸收近年來lb方法在理論和應用方面的新成果，探索在水力計算方面的新途徑以促進lb方法實用化的發展，本文進行了下列研究工作：綜述了lb方法在理論研究和實際應用方面的新進展，以及d2q9模型的推導過程和其他一些常用的模型；在水動力邊界條件和通用邊界條件的基礎上提出了一種新的聯合邊界條件方法，它綜合了上述兩種邊界條件的優點，在流場的各種邊界處理中取得了非常好的效果，經過模塊化的處理以後這種邊界條件具有更好的實用性；針對均勻網格的lb方法計算效率較低的不足，提出了雙重網格的latticeboltzmann方法，通過二維poiseulle流動、后臺階流動和渠道方槽流動三個算例的模擬，證明這種方法能夠明顯地提高流場模擬的計算效率；此外，根據復雜區域流場的特徵提出了latticeboltzmann方法的分塊-耦合演算法，利用lb方法的計算特性實現塊與塊之間的數據交換，充分利用計算資源提高計算效率，通過對「 t 」型、 「十」型和「 x 」型分岔管道流場的模擬，展示了這種演算法的特徵和優點，以及它所具有的應用前景。
  9. Use of multi - level optimization technique in structural optimization design can reduce the structural weight, improve the efficiency of calculation, and shorten the design cycles

    將多級技術應用於結構優化設計中，將會減少結構的計算量，提高計算效率，縮短設計周期。
  10. The dissertation has been divided into three part : the method of scalar fem for calculating the scattering and coupling character of 2d cavities ; the high efficient algorithm of vector fem for the scattering and coupling character of 3d cavities ; the method of calculate caliber admittance matrix for high efficient algorithm to compute the scattering and coupling character body with open cavities

    全文分別研究標量有限元邊界積分求解二維腔體電磁散射與耦合的計算方法，矢量有限元邊界積分求解三維腔體電磁散射與耦合的計算方法，同時針對含腔目標的高效求解問題提出了口徑導納矩陣的新的計算方法，提高了計算效率。
  11. A new approximate adjustment method for arbitrary centralized polygon is developed, together with its corresponding programme. an example is given to illustrate its higher computation efficiency, compared with the traditional method. both results are identical

    本文導出了中點多邊形近似平差的新演算法，並給出了適合任意中點多邊形平差的計算程序，計算結果和傳統方法一致，但避免了數據的重復輸入，提高了計算效率。
  12. Based on the correct evaluation of the means and covariance of the measurement error in cartesian coordinate system, the algorithm processes the radar measurements sequentially, and the linearization of measurement equation is no longer neccessary

    作者推導了有測速數據時的去偏轉換卡爾曼濾波演算法。此演算法估計精度和計算效率比以前的方法有較大改善，對測量方程不做近似處理。
  13. The computation results showed that the multi _ body system model was accuracy, the fuzzy _ pid compound control scheme was compact, both was just combined well, and this system had a good performance on improving the vehicle ' s ride comfort characteristics

    計算結果表明，以多剛體系統動力學的拉格朗日方法所建數學模型模擬精度高，計算效率高，方法可行，多剛體系統動力學模型同模糊pid復合控制策略結合較好，是一個行之有效的進行綜合模擬和優化控制的系統。
  14. ( 4 ) to raise the computational accuracy and efficiency, we have designed a self - adaptive space grid that can guarantee mass conservation and energy conservation, and have also developed the techniques for the time stepsize automatically varying

    （ 4 ）設計了保持質量和能量守恆的自適應空間網格，發展了自動改變時間步長的技術，使之能夠更好地保證計算精度，提高計算效率。
  15. Aiming at higher computational accuracy, the unstructured hybrid mesh and the distributed parallel computation are used in 3d complex flow field simulation, the combination of these two techniques often causes difficulties in data structure and sub - domain definition because of the non - unification of mesh elements

    在三維復雜外形的流場計算中，為了得到較高的計算效率及保證數值模擬的準確性，經常要採用混合網格及并行計算技術。
  16. This paper presents monomodality registration of rigid body, elastic rigistration of non - rigid body and interpolation used in image registration. by comparison of several interpolations, because of the best tradeoff between accuracy and the computational cost, cubic spline interpolation is selected as interpolation of this paper ' s registration

    首先通過對配準中所採用的幾種插值演算法進行了比較，選出了有較高插值質量和有較高計算效率的三次樣條插值演算法作為本文中配準方法所採用的插值。
  17. The results show that all solution can determinately exist, which avoids the complicated discussion to singular solution educed from d - h transformation method

    結果表明，各關節的運動學逆解唯一，計算簡單，運算量小，特別是對于具有多冗餘度的機器人，此法能夠避免奇異解的討論，提高計算效率。
  18. Firstly, two new strategies of mec are designed. one is a dissimilation strategy by rejected regions for avoiding searching repeatedly in dissimilation process and improving mec computing efficiency

    一種是採用拒絕域的異化策略，它可以使mec在異化時避免重復搜索，來提高演算法的計算效率。
  19. The calculation results are compared with the results that obtained by experiment. it is found that the calculation results are close to the experiment values. the finite element mentod has advantages in calculational precision

    計算結果與實驗結果的比較表明:兩種演算法所得結果與實驗結果基本一致，有限元法在計算精度方面具有優勢，而擬動力學法在計算效率方面具有優勢。
  20. In recent years, it is due to the modification and improvement of the algorithms and especially the development of computer science and technology both in hardware and software that lead to the advent of such practical analytic tools as blast, fasta, clustalw, which can relatively cater for the need of research in both efficiency and accuracy. the fundamental way to improve computation efficiency and accuracy is to better the alignment algorithms in principle so as to minish the computation complexity

    雖然近年來由於演算法自身的不斷改進以及計算機科學的發展，其實現程序依靠計算機硬體和軟體開發技術的提高得到了效率和精度上的改善，從而使現在應用廣泛的序列比對或數據庫搜索程序如blast 、 fasta 、 clustalw等才獲得了相對滿意的計算效率，但是從理論基礎和思想原理上改善序列比對演算法以期降低計算復雜度，才是提高計算效率和精度的根本途徑。
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