有限差分公式 的英文怎麼說

中文拼音 [yǒuxiànchāfēngōngshì]
有限差分公式 英文
finite-difference formula
  • 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
  • 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
  • 公 : Ⅰ形容詞1 （屬于國家或集體的） state owned; collective; public 2 （共同的;大家承認的） common; gen...
  • 式 : 名詞1 （樣式） type; style 2 （格式） pattern; form 3 （儀式; 典禮） ceremony; ritual 4 （自然科...
  • 有限 : limited; restricted; finite; a little; not much
  1. Second, go deep into investigate the frame and calculate method of real options, apply formulation of gesk, black - scholes carr and margrabe to a instance, and compare the results of different formulations. make use of binominal lattice ^ finite difference and monte carlo to one instance. this paper suggests that the operable procedure and method copeland and antikarov provided with monte carlo simulation and binominal lattice is a best way

    第二，深入分析實物期權應用框架和計算方法，利用gesk公式、 black - scholes公式、 carr公式和margrabe公式對具體的實例進行了計算比較，又採用二項網格法、有限差分方法和蒙特卡羅方法對實例進行了模擬計算。
  2. Therefore, the driving theory of tft - lcd is described and discussed in detail firstly. according to the tft - lcd with lvds ( low voltage difference signal ) interface supplied by auo ( au optronics corp ). we analyzed the characteristic of lvds interface

    為此，首先深入分析了tft - lcd的驅動原理，針對蘇州友達光電有限公司提供的低壓差分信號（ lvds lowvoltagedifferentialsignaling ）介面方式的液晶模塊，又進一步分析了lvds介面信號原理。
  3. In the thesis, the fundamental formula of ffd method derives from the square root that is approximated by a continued fraction expansion in the one - way wave equation. optimizations of the parameters of the finite - difference operator improve the validity of the method

    本論文用連分式近似單程波波動方程中的平方根導出ffd演算法的基本公式，並對ffd演算法中的有限差分運算元進行了系數優化，進一步提高了計算的有效性。
  4. 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。
  5. ( 3 ) temperature field and residual capacity of reinforced concrete member after fire studied by the numbers, various boundary conditions of heat exchange equation and the solutions of them given an account, the formulae of the residual capacity of the members after fire established, the program of temperature field programmed on the basic of finite difference algorithm, a case given to demonstrate

    （ 3 ）對火災后構件溫度場的分佈和剩餘承載力的計算進行了系統地分析和研究。討論了熱傳導方程的各種邊界條件及相應的解法，建立了不同構件的剩餘承載力計算公式，並結合工程實例用有限差分法編制了相應的溫度場計算程序，與實例吻合良好。
  6. Though adopting the - coordinate transformation in the control equations and mode - splitting technique, the external mode ( surface gravity waves ) is solved by the improved double - sweep - implicit finite difference method ; the internal mode ( internal gravity waves ) untilizes the eulerian - lagrangian method, which improves the implicit - difference scheme for the vertical direction. the newly developed 3d numerical tidal model with implicit scheme has been successfully applied in the radial sandbanks area

    基於過程分裂法及垂向坐標伸縮變換，外模式採用改進型雙步全隱有限差分dsi法，內模式採用歐拉?拉格朗日公式，改進了三維垂向隱式格式，成功地建立了南黃海輻射狀沙脊群海域三維全隱格式潮流數學模型。
  7. The contents include : based on the previous research and the data of experimentations, the author researches and develops a kind of satisfactory semi - empirical formula of nonlinear temperature distribution, and calculates the temperature stress of rigid - framed arch bridge by the fem. the temperature effects of bridge structure by annual and sunlight temperature difference are discussed, it indicates that the temperature effect of annual temperature difference is small but the temperature effect of sunlight temperature difference is great and the temperature stress along beam depth resulted from sunlight temperature difference is nonlinear. with the comparison between the temperature effects of different position of bridge, the results show that where the section of bridge is small, the temperature stress of it is large

    本文主要包括以下內容：從理論上研究並結合實測資料發展了一種比較理想的半經驗溫度場非線性分佈公式，並將有限元方法應用於剛架拱橋結構溫度應力的計算中，對橋梁結構進行整體溫度應力分析；討論了年溫差和日照溫差引起的橋梁結構的溫度效應，表明年溫差引起的溫度效應較小，而日照溫差引起的溫度應力較大且沿梁高呈非線性分佈；分析比較了橋梁結構各個部位的溫度效應的大小，可知截面越小溫度拉應力越大，受力越不利；並對箱梁結構由於構造不同引起的縱向與橫向的溫度效應大小進行了探討，發現在頂板下緣也會出現相當大的溫度拉應力，並且梗腋的存在反而增加了頂板底部的溫度拉應力；還對幾種相近的剛構式橋型的溫度效應進行了分析對比，總結了這些橋型針對溫度效應的優劣，並提出相應的針對性措施。
  8. In the light of the problem of the great error in the calculation using the conventional cone fitted latin american formula, the fem mix method is used for calculation so as to provide the basis for the cone interference fitted analysis of the connection strength and the optimization design

    針對圓錐配合計算常用的拉美公式計算誤差大的問題，採用有限元混合法進行了分析計算，為圓錐過盈配合的聯結強度分析和優化設計提供了依據。
  9. In this dissertation, the numerical computation for the acoustic radiation problem ( arp ) is studied deeply and systematically in the theory, method and the application technique, based on analyzing the situation of the home and abroad on the numerical computation for the acoustic radiation problem. the calculation formulas of the boundary element method ( bem ) for the exterior acoustic radiation problem in the full - space and half - space are deduced, based on the wave propagation theorem ; the arising of the non - unique solutions, which is associated with the application of the boundary integral equation ( bie ) in acoustic radiation problem, is analyzed and proofed ; the improved combined helmholtz integral equation formulation ( ichief ) is presented to overcome the non - uniqueness problem more effectively and reliably ; the determination of the singular integral coefficients on various occasions is analyzed ; the properties and treatments of the singular integrals with different orders axe studied ; the computation program of the cubic spline ichief is developed and its ability to overcome the non - uniqueness problem and feasibility to discrete the surface coarsely with the sufficient calculation precision are examined through examples

    第二章在聲波動理論基礎上，詳細地推導出對應于無限域和半無限域的外部振動聲輻射問題的邊界積分方程計算公式；根據fredholm積分理論，對利用邊界積分方程計算振動聲輻射問題過程中解的非唯一性的產生進行了分析和證明；改進了chief法以提高其克服解的非唯一性的有效性和可靠性；對不同條件下奇性系數的計算、強奇性積分的收斂性及其在變量替換時與普通積分的差異性、不同階奇性積分的計算、數值求積分等進行了研究；開發了三次樣條改進chief法計算軟體，並通過算例考核了該方法在特徵波數處克服解的非唯一性的有效性和在保證計算精度的前提下實現剖分粗化以提高計算效率的可行性。
  10. In specific, the formulation of the rcwa for 2 - d and 3 - d metallic gratings and the formulation of the fdtd method for dispersive media are presented. a novel hybrid diffraction method, which is based on the kirchhoff - huygens diffraction formula and the rcwa, is proposed to simulate the working of a planar integrated diffraction grating

    針對在光通信以及光盤存儲領域的具體應用，著重對二維及三維金屬光柵衍射問題的嚴格耦合波分析以及色散媒質散射問題的時域有限差分方法進行了公式推導。
  11. The management of supply chain could support mass customization production in automobile industry. this article combines the theory of management of supply chain with the specific feature and conditions in dcac, points out the defect in inventory management of supply chain, and mainly studies the causes of inventory management problem in final products, i. e. the poor ability of marketing forecast and poor responses to customer because of long lead time

    供應鏈管理是一種能夠支持轎車產業大規模定製的管理模式，本文結合供應鏈管理與神龍汽車有限公司具體條件和特點，提出了神龍公司供應鏈庫存管理存在的問題，著重分析了產生整車庫存管理問題的原因所在，即市場需求預測準確性差和訂貨周期長，市場響應度低。
  12. In this thesis, the multi - channel sharing system is considered as a stochastic service system. based on the steady state solution of the birth and death process which state space is a limited set, utilized m / m / n / n / m queue model, the call congestion ratio formula and the channel utilization ratio formula fitting to the limited user system are derived. drawing support from the visual data analyzing function of the software matlab, the value divergence between the formulas and the corresponding one fitting to the infinite user system are compared

    本文將多通道共用通信系統視為一個隨機服務系統，根據有限狀態生滅過程的穩態解，利用m m n n和m m n n m兩類排隊模型，分別推導出了無限用戶和有限用戶兩類多通道共用系統的呼損率公式和通道利用率公式；藉助于matlab的可視化數據分析功能，比較了這兩組公式在數值上的差異；指明了兩組公式的適用條件。
  13. 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。
  14. Thirdly, one numerical stimulation method - fdtd ( fmite - difference time - domain ) and the transformation of near zone to far zone are introduced, and then the program is verified

    接著介紹了時域有限差分法（ fdtd ）及其近場到遠場的變換公式，並對自編的fdtd計算程序進行了驗證。
  15. First, we simply introduced the optical wave - guide theory : the fluctuation equations of planar wave - guide and the preparation of embranchment wave - guide. then based on maxwell equations and in the paraxial limit we deduced the formula needed in calculating fd - bpm. the refractive index section was n ( x, y )

    然後我們在maxwell方程的基礎上，根據慢包絡近似理論，在折射率截面為n （ x ， z ）的條件下，利用有限差分近似來代替偏微分方程，推出了有限差分光束傳播法計算所需要的公式。
  16. If applied experiential formula mechanically to calculate the dynamic moment of the tri - eccentric butterfly vavle, its errors for the results would be larger. the paper, by virtue of the postulate of flow with fixed constant, eddiless of ideal liquid, calculated laplace equation by finite difference method in rectangular coordinates, gained pressure distribution on the butterfly disc section, thereby figured out its dynamic moment under each opening angle and the method was feasible for calculating dynamic moment of symmetry or not, designed the program and described the curve of dynamic moment. finally, the paper infered their laws

    採用經驗公式來計算三偏心蝶閥的動水力矩，誤差比較大，本文根據三偏心蝶閥的結構特點，利用理想流體的定常、無旋流動的假定，用有限差分法在直角坐標系中求解拉普拉斯方程，得到蝶板截面上的壓力分佈，從而計算出蝶板在各個開度下的動水力矩，設計出了求解的程序，給出了程序運行的結果並進行了數據處理從而得到了動水力矩曲線，總結了它的變化規律。
  17. 1. on the bases of some basic suppositions, terzaghi ' s one dimensional consolidation and principles of layered summation method, the paper draw the formula which can calculate the embankment of layered filling and take the formula into programme ; 2. building the finite difference model of layered high - stack soil, carrying out numerical simulation of construction sequence, construction velocity, interface element of layer - stacked, the author get the numerical solution

    1利用一些基本假定，根據太沙基一維固結理論和分層總和法的基本原理，推導出來計算分層填築體自身沉降的公式，並編制了程序； 2建立了分層填築高填方路堤問題的有限差分模型，並對分層填築的施工順序、施工速度，界面單元進行了數值模擬，獲得了位移場和應力場的數值解。
  18. In part one, the 2 - d finite - difference formula are set up

    第一部分進行二維有限差分公式的推導。
  19. A three - dimensional hybrid vectorial method, which is based on the fdtd algorithm and the vectorial diffraction formulation, is introduced to analyze the read out of an optical disk

    結合矢量衍射公式和時域有限差分方法，本文給出了一種精確模擬光盤存儲系統中的光學信號讀取的三維混合矢量方法。
  20. Then the tests result is compared with results of finite - element analysis and design formulae and the difference of them are analyzed

    並將試驗結果與有限元分析結果和我國規范公式計算結果進行了比較，分析了偏差產生的原因。
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