數值微分 的英文怎麼說

中文拼音 [shǔzhíwéifēn]
數值微分 英文
numerical differentiation
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 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
  • 數值 : numerical value; numerial number; figure; magnitude; value數值表 numerical tabular; 數值天氣預報 ...
  1. Numerical analysis on three - dimensional aerodynamic characteristics of micro air vehicle

    微小型飛機三維氣動力特性的數值分析
  2. Results contrast with the unimproved or some previous models, the features of tumor microvascular networks generated from our model by simulating the angiogenesis in caecum tumor, such as vascular tortuosity, branching and anastomosis, are closer to the physiological facts and more resemble the experimental observations

    結果對盲腸腫瘤微血管網進行數值模擬，與改進前的模型和其他模型比較，本模型生成的腫瘤微血管網結構特徵，如血管的走向、扭曲、分叉與融合等，更接近生理實際，與實驗觀測圖像的相似度更高。
  3. Adopted numerical value integral method into the explain of the basic heat - conduct differential equation based the stabilization flow. get temperature changes rule of the cold - blowing and hot - blowing period of the cold - cumulating and dry - able tin

    採用數值積分法對基於穩定流的基本傳熱微分方程組進行求解，進一步了解了影響蓄冷器效率的主要因素。
  4. Eigenvalue problems for fractional differential equations

    一類分數階微分方程的本徵值問題
  5. The fuel cells models are presented in chapter 3. based on the balance conditions in fuel cells stack, the dynamic performance is analyzed. the dynamic model is developed with a set of correlation equations of voltage, fuel utilization, current density and other variables involved in the operating course, which are some partial differential equations with variable coefficients

    第三章以熔融碳酸鹽燃料電池為例，以數值分析的方法，根據mcfc電堆發電過程中物質與電量平衡，分析了電堆的內部動態特性，就輸出電壓與燃料氣體利用率和電流密度等相關量建立了由一組變系數偏微分方程和積分方程描述的數學模型。
  6. The soft tissues are discreted to a mass - spring - damper system, and the topologies of the system are described using adjacent tables, the dynamical equations can be constructed based on the data stored in the adjacent tables. the 4th order runge - kutta method is used to integrate the equations of deformation. using computer graphical techniques to display the visual feedback of the deformation

    將連續的軟組織離散為由彈簧-阻尼器及與其連接的質點構成的離散系統，用鄰接矩陣表示離散系統的拓撲結構，即質點-彈簧間的鄰接關系，依據該信息，可自動計算與每個質點連接的彈簧、阻尼器對接點的粘彈性力的貢獻，然後採用4階runge - kutta方法對得到的微分方程組進行數值積分，用opengl技術對得到的模擬結果進行圖形繪制。
  7. The numerical differentiation of first and second order with tikhonov regularization

    正則化方法求一階和兩階的數值微分
  8. Accurate solution of non - linear dynamic systems by numerical integration method

    非線性動力學常微分方程組高精度數值積分方法
  9. In the text, differential coefficient method and numerical value differential coefficient method have been introduced for crank slide block machine accuracy analysis, and influence of the fitting clearance of moving pair to component moving error has been given

    文章介紹了微分法及數值微分法曲柄滑塊機構精度分析，說明了運動副的配合間隙對構件運動誤差的影響。
  10. The accuracy of reliability calculation was improved in the derivative sfem method. the local derivatives of fem and numerical method were used to obtain the iterative formulas of the performance function ' s local derivatives. the procedure is relatively simple and adaptable to engineering application as the stiffness matrix formed and decomposed only once

    偏導sfem可靠度法求解構件疲勞可靠度，可靠度計算精度得到改善，通過有限元求偏導，結合數值微分技術，推導出了功能函數的偏導迭代格式，只需一次形成和分解總綱，計算較簡便，適合工程應用。
  11. Academician prof zhong wan - xie presented precise integration method firstly in 1993, and ordinary differential equation can be solved precisely by this method. in this article, improved precise integration method is given firstly. then on the basis of improved precise integration method, a new method for calculating the response of dry friction system is presented, and the calculation precise degree of this method is tested by the comparison with ihb method

    1993年鐘萬勰院士提出了精細積分法，它可以精確求出常系數常微分方程的數值解，本文首先提出精細積分改進演算法，進一步提高了其計算精度，然後在改進的精細積分法基礎上對于摩擦系統響應的計算方法進行了研究，並用ihb法對這種計算方法的計算精度進行檢驗，結果證明這也是計算干摩擦隔振系統響應的有效方法之一。
  12. Based on the asymptotic properties for numerical integral formulas, this paper obtains a class of finite difference methods for solving initial value problems of odinary differential equations, and studies the consistency and stability of new methods

    摘要基於數值積分公式中間點的漸近性質，獲得了一類求解常微分方程初值問題有限差分方法，研究了新方法的相容性和穩定性。
  13. This thesis study the uniqueness theory of meromorphic functions. with the theory of nevanlinna ' s value distribution, the author analyze and study the unique problems about meromorphic function and its derivative or differential polynomial shared values, two meromorphic functions shared one value, the derivatives of meromorphic functions shared one value or small function, the derivatives of meromorphic functions shared one set. proved several uniqueness theorem, which generalized and improved the results of qiu gandi, brosch, yi hongxun, c. c. yang and wu guirong,

    作者應用nevanlinna值分佈理論，對函數與其導函數或微分多項式具有公共值，兩函數具有公共值，兩函數的導函數分擔公共值或小函數，以及分擔公共值集的唯一性等問題進行了分析和研究，得到了幾個唯一性定理，它們分別是邱? ? ， brosch ，儀洪勛，楊重駿，吳桂榮等人的有關結果的推廣和改進。
  14. For the mathematics model of differential / algebraic equation system, the penalty function is introduced in numerical computation, and runge - kutta method and newton - raphson method are used respectively in solving the ordinary differential equations and nonlinear equation systems. the process and the results are carried out under corba environment

    本論文採用近年發展的懲罰函數方法進行數值積分，對于常微分方程，採用runge - kutta方法進行數值積分，對于代數方程，採用newton - raphson迭代方法求解，並在corba環境下實現。
  15. Differential and integral of fuzzy number valued function

    模糊數值函數的微分和積分
  16. These have been developed by the numerical integration of the differential equations of gas motion for a spherical blast wave in air.

    這些都是根據空中球形爆震波氣體運動的微分方程的數值積分得到的。
  17. Mss consists of mathematics & applied mathematics dept., information & computing science dept., probability & statistics dept. and college mathematics dept. with ten subject orientations : algebra, function theory, computing science, numerical solution of differential equation, functional differential equation and its application, applied probability and statistics, mathematics mechanization, cad, coding security and financial mathematics

    有代數、函數論、計算數學、微分方程數值解法、泛函微分方程及應用、應用概率統計、數學機械化、計算機圖形處理、密碼安全、金融數學十個學科方向。
  18. In order to study the regeneration mechanism of dpf in detail, we still need a mathematical model of the channel unit, which present temperature field and the soot reaction rate of the channel. finally, it points out the influences of various factors to the regeneration process by computing the numerical solution of model under different boundary conditions and geometry parameters, such as the initial temperature, the gas flow rate, the oxygen concentration, the sediment quantity and the wall thickness of the filters, and so on. in this way, the paper provides theoretical guidance for optimization design of the dpf

    首先研究了干凈壁流式過濾體的加熱特性，然後在加熱和燃燒理論的基礎上建立了微粒捕集器再生過程的數學模型，並對模型進行了數值計算，得到了捕集器內部的三維溫度場分佈以及溫度梯度分佈，結果與實驗值吻合較好，驗證了模型的正確性;為了詳細的研究微粒捕集器的再生機理，建立了孔道單元數學模型，得到了孔道內的溫度場分佈和微粒反應速率分佈;最後，通過求解模型在不同邊界條件和不同幾何參數下的數值解，分析了各種因素對再生過程的影響，如過濾體初始溫度、過濾體內氣流的流動速率、氧濃度、微粒沉積量以及過濾體壁面厚度，為微粒捕集器的優化設計提供理論指導。
  19. In section 1, we first present our argument that the purpose of optimization is to search for the maximum value of a function. the major researches and recent development of the study of non - smooth analysis are reviewed. also included in this section is our discussion of the theoretical importance and wide practical prospects in studying differential properties of a lipschitz function

    第一節是引言部分，提出了最優化問題的實質是在給定條件下求一函數的極值點；簡述了非光滑分析的主要研究內容及其發展進程；指出研究lipschitz函數的微分性質，具有深刻的理論意義和廣泛的實用前景。
  20. This kind of simulation is a typical stiff system and the stiff integration method with variable order and step size should be applied. on the basis of analyzing the solution of stiff problems of the full dynandc simulation in essence, the gear method, a numerical integration method that is suitable to solve stiff differential equations is studied

    在深入研究微分方程數值積分的基本理論和剛性微分方程的數值積分方法的基礎上，本文根據微分方程的數值方法的收斂性和穩定性的基本理論，對適用於求解剛性微分方程的數值積分方法? ? gear法進行了深入的研究和分析。
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