有限迭代 的英文怎麼說

中文拼音 [yǒuxiàndiědài]
有限迭代 英文
finite iteration
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 限 : Ⅰ名詞（指定的范圍; 限度） limit; bounds Ⅱ動詞（指定范圍, 不許超過） set a limit; limit; restrict
  • 迭 : Ⅰ動詞（輪流; 替換） alternate; change Ⅱ副詞1 （屢次） repeatedly; again and again 2 （及） in tim...
  • 代 : Ⅰ動詞1 （代替） take the place of; be in place of 2 （代理） act on behalf of; acting Ⅱ名詞1 （歷...
  • 有限 : limited; restricted; finite; a little; not much
  1. With the use of finite method we have developed computer simulation software for vacuum microtriodes with wedge - shaped and cone - shaped cathode on the basis of stduying deeply the field emission theory of vacuum microelectronics. the software included field section, grid point numbering, and the calculation of electric currents, transconductance and cathode capacitance, moreover, it can simulate the properties of vacuum microeletronic with variant structures and sizes. the relationship was studied and simulated among electic properties and device structures, sizes and cathode materials etc. the optimized design of vacuum microtiode was proposed

    本文在深入研究真空微電子器件場致發射理論的基礎上，根據圓錐形、楔形陰極真空微電子三極體的不同特點，分別建立了物理和數學模型，在考慮空間電荷密度影響的前提下，以有限元法為基礎採用迭代的方法計算出真空微電子三極體內的電勢分佈情況，繪制出了等勢線、電子軌跡線，並得到了器件電學性能隨幾何參數的變化情況。
  2. Consequently, on the basis of non - winkler foundation model, a finite - element method that utilizes foundation flexibility matrix into iterative calculation is proposed in this paper originated from the item " the optimal design theory and research of pile capping beam " sponsored by natural science fund of hunan province, which the continuity of soil mass can be accounted for under various boundary conditions, different loadings and irregular beam characters

    本文結合湖南省自然科學基金項目「樁基承臺梁優化設計理論與方法研究」 ，針對非文克爾地基（半空間、線性變形層或單向壓縮層地基模型等）上的樁基承臺梁，提出一種利用地基柔度矩陣來進行迭代的有限單元法，可充分考慮梁下土體的連續性，並對基礎與土體脫開、承臺梁截面變化、梁體邊界條件復雜、上部荷載類型變化以及梁下基樁承載力差異等情況進行分析計算。
  3. A normal transform is introduced, and there are enough much grids in the region between the critical layer and the wall, where the variation of the disturbance is the quickest. the finite - difference of governing equations with fourth - order accuracy in the normal direction is utilized in full regions including points close the wall, and is very important for accurately discreting equations. the combination of global and local methods is implemented, and a new iterative formula is derived

    對于曲線坐標系下的拋物化穩定性方程，文中發展了求解的高效數值方法:引進法向變換，使得在臨界層與壁面之間的擾動量變化最快的區域有更多的法向網格點;導出包含邊界鄰域在內的完全四階精度的法向有限差分格式，這對方程精確離散至關重要;採用全局法和局部法相結合的方法及其新的迭代公式，大大加速收斂並得到更精確的特徵值。
  4. During the process of implementation, the finite number of iterations must cause the inexactness, which will lead to the loss of exact preservation of symplecticity

    在實際實施過程中，有限次迭代必將引起計算的不精確性，從而影響保辛性的嚴格成立。
  5. Based on the basic function of fea, the iterated formula of modulus of elasticity is deduced through mathematical method as deviation control rule

    從有限元基本方程出發，採用最小二乘法作為誤差控制準則，推出彈性模量的迭代式。
  6. Moreover, based on routine research method on abutment stability, non - linear finite element shear strengthes reducing by step iteration method is put forward in this paper, which is also applied in the analysis of abutment stability of tengzigou arch dam successfully

    在此基礎上，介紹了非線性有限元強度折減迭代解法，探討了復雜地基上拱壩整體穩定安全度的評價方法，並應用於藤子溝拱壩穩定安全度評價。
  7. When used in multidisciplinary environment, csso has several advantages over standard optimization method : reduction of the information transfer ; elimination of large iteration loop ; allowance of the use of corresponding subspace optimizers in different disciplinary analysis ; a parallel optimization architecture which is readily operable on a suite of heterogeneous equipments ; more natural fit to the current organization structure found in most institutes of aerospace and aeronautic design ; participation of the disciplinary experts to best deal with specific disciplinary models

    當應用於多學科設計環境時，并行子空間優化方法相對傳統優化方法有幾大優點：減少了學科間信息傳遞的數量；免去了大的迭代循環；允許在不同學科分析模塊中應用不同子空間優化器；可以在不同設備上并行運行；結構框架適用於傳統學科組織形式；允許各學科專家最大限度地參與學科分析和設計。
  8. A. d. p. i. approximation for characteristic finite element methods for quasilinear sobolev equations and its analysis

    方程的特徵有限元格式的交替方向預處理迭代解及其分析
  9. An implicit iterative process for a finite family of nonexpansive mappings in hilbert space

    空間上有限個非擴張映象的隱式迭代過程
  10. Aim at ubiquitous parallel multi - reservoir structure in our country ' s basin, the universal objective function including coefficient bi embodying a spatial significance difference at different flood control points and variable ai denoting a selection of scheduling mode is established, which provide a valid intervenor interface for flood control consultation decision. according to the real - time requirement, a model of reservoir storage allocation is proposed, which embody basic idea of phasic compensation. passing the dynamic correction to cut down the disadvantageous influence that indetermination result in on the certain degree, joining together the step alternation solving method, this model can maximally consider bias of decision makers, ensure the rationality and practicability of the solutions

    針對我國流域中普遍存在的並聯庫群結構，論文提出包含不同防洪點重要性的系數_ i和選擇調度模式的變量_ i的通用目標函數，為防洪會商決策，提供了有效的人工干預介面，根據實時性要求提出動態分配防洪庫容的庫容分配方法，體現了相機補償的基本思想，通過動態修正在一定程度上可以削減不確定性造成的不利影響，結合分步迭代求解技術，能最大限度體現決策者的偏好，保障解的合理性和可操作性。
  11. The flow equations are solved using finite difference technique. using body - fitted curvilinear coordinate system treated the boundary conditions. by iteratively solving the flow governing equation and the blade equation, the design of axial flow pump impeller in the quasi - three - dimensional rotational flow can be performed according to the angular momentum distribution, the blade which was designed in the lifting method, flow channel and the blade thickness given

    其次在流動無粘性、不可壓及考慮葉片厚度的條件下，依據葉輪內的流動特性，推導了葉輪內三維流動周向平均流動控制方程以及葉片方程；在貼體坐標系中，採用有限差分法求解流動方程和葉片方程；在採用升力法設計出的葉片作為初始葉片、給定葉片速度矩分佈、葉片厚度分佈和葉輪軸面流道幾何形狀條件下，迭代求解流動控制方程及葉片方程，實現了軸流泵葉輪的準三維方法設計。
  12. On the basis of the primary concepts of thermal conduction and thermal physical property of concrete material, the distributions of temperature in concrete structures are discussed in this thesis, the causes resulting in temperature - effected deformation and internal forces in the elements of the structures are analyzed. moreover, the practical approaches, such as continuous method, iteration method, finite element method, are suggested to calculate the deformations and internal forces above

    本文從混凝土的熱物理特性和熱傳導的基本概念出發，討論了混凝土結構中的溫度分佈規律，分析了高層建築結構中溫度變形和溫度內力產生的原因，並介紹了高層建築結構中溫度變形和溫度內力計算的實用方法，包括連續化法，迭代法及有限單元法。
  13. Simulations with respect to two models, prove that the method can track the frequency accurately and instantly, and have the preferable effectiveness on the abruptly fluctuating - frequency power signals, at the same time, this method overcomes the constraint of synchronous sampling and has the better astringency with different initial frequency

    針對兩種模型進行模擬，表明該方法能夠較為精確與快速地跟蹤電網頻率，尤其針對突變頻率的信號，具有較好的跟蹤效果；同時演算法克服了同步采樣條件的限制，通過迭代，在不同初始頻率下均具有較好的收斂性。
  14. There are two areas in the world of software development that directly play off all these notions of the " limits of knowledge " and " what constitutes a proof. " the first of these is the role of testing in software development, and the second is the notion of iterative development itself

    軟體開發界中有兩個領域直接與「知識的局限性」和「什麼組成了一個證明」的提法相對應。前者是測試在軟體開發中的作用，後者是迭代開發的提法本身。
  15. Then each. cable - strut - membrane unit is analyzed by adopt the non - linear finite element analytical method. according to virtual work principle, the equation of solving is formed, from the timid displacement principle, derive and happen to ask the equation of solving. through the whole n - r method, cooperative form - finding of the cable - strut - membrane structure will be realized

    然後，採用非線性有限元分析方法，對各個單元進行分析，由虛位移原理，推導出求解方程，通過全n - r法迭代，實現索桿膜結構的協同找形。
  16. Strong convergence theorem of iterative sequence for a family of finite asymptotically quasi - nonexpansive mappings

    有限個漸近擬非擴張映象迭代序列強收斂定理
  17. One self - anchored suspension bridge is the subject investigated, the finite element program " midas " is adopted to establish the spatial computation model of the suspension bridge, and the subspace iteration method is used to calculate the natural vibration frequencies and modes of the bridge, the bridge ' s dynamic property and rigidity feature are discussed with the computed results

    摘要以某自錨式懸索橋主橋為研究對象，採用midas有限元程序，建立了該橋的空間力學計算模型，利用子空間迭代法計算了該橋梁結構的自振頻率和振型，結合計算結果對橋梁的動力特性和剛度特點進行了討論。
  18. The gap element method is proposed in the paper for two kinds of problems, which include contact problem and gap joint problem. elasticity contact problem falls into the category of unknown boundary value problems. it follows that the contact area and contact conditions or states ( st

    文中給出了間隙元法在空間可動部件接觸問題中的應用，推導了其幾何邊界條件和力學邊界條件，利用虛功原理推導了含間隙元彈性接觸問題的有限元方程式，給出了其數值解法的迭代步驟，並指出了利用間隙單元進行分析的特點。
  19. In order to counteract the effect due to the unmodeled perturbation, the h tracking control requires to solve a modified algebraic riccati - like matrix equation. the derived hybrid adaptive - robust tracking control scheme guarantees that all the signals and states are bounded, the tracking error is uniformly ultimately bounded and h tracking performance is achieved

    所提出的控制方案保證跟蹤誤差在有限的迭代步驟內收斂到任意指定的誤差區域並且一直保持在指定的區域內，而且保證每一迭代步系統信號有界。
  20. The proposed algorithm is called agvf snake algorithm. when deformable models are used to extract brain contour from the head mr images, problems associated with initialization and time consuming iteration limit their utility. to overcome these problems, a region based variable expansion force is proposed

    對于可變形模型對初始輪廓的依賴較大，外力的作用范圍有限，迭代演算法收斂時間較長等問題，提出了一種新的外力，我們稱之為基於區域的可變膨脹力（ regionbasedvariableexpansionforce ） 。
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