數解值 的英文怎麼說

For this purpos, from the point of the log geology, aimed at the actuality of the current fractured reservoir log geology interpretation and evaluation, based on synthetical analysis of the current domestic and foreign fruit of fractal dimension investigation of reservoir fracture, using the method and technique of fractal dimension, through the further discussion of the fractal dimension characteristics of m index and n index in the log interpretation archie model in a sample way and through the theoretic reasoning to the fractal dimension dfa and m index of fractured reservoir interval ' s log curve, according to the geophysical signification of the fractal dimension dfa of fractured reservoir interval ' s log curve shape : the more complicated the change of the curve shape is, the larger the its dfa value is, then the more complicated space structure of fracture and pore, then the higher value of m index of space structure of fracture and pore, and so on, the text propounds an improved method, based on box dimension, of covering log curve with scale grid, and by programming computes the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, then further puts this technique into application investigation, and makes analysis of application effects in the reservoirs located in l area of qx oil field from three aspects : 1. the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, which are derived from computing, is used to identify reservoir type by crossplotting m index with the product df _ acrt of fractal dimension of acoustical wave log curve and restivity log curve and by experiential discriminance plate of reservoir type in l area of qx oil field

因此，對該區裂縫性儲集層的類型識別、孔滲特徵的測井地質解釋以及儲層裂縫的發育和分佈規律進行深入的研究便成為本文研究的出發點。為此，本文從測井地質的角度，針對當前裂縫性儲層測井地質解釋與評價的現狀，在綜合分析當前國內外儲層裂縫的分形分維研究成果的基礎上，利用分形分維方法和技術，通過對archie測井解釋模型中的m指數、 n指數的分形分維特性的深入淺出的論述以及裂縫性儲層段測井曲線分維d _ （ fa ）與m指數的理論推導，根據裂縫性儲層測井曲線形態分維值的地球物理意義? ?曲線變化越復雜，則其分維值d _ （ fa ）越大、裂縫孔隙空間結構越復雜、裂縫孔隙空間結構指數m值越高等特徵，提出了改進的基於盒維數的測井曲線網格覆蓋法，編程計算了裂縫性儲層段常規測井曲線（如聲波和電阻率曲線）上分形分維值及其m指數值，進而從以下三個方面對qx油田l區塊的裂縫油藏進行應用研究，效果十分理想： 1將計算得到的可變的m指數與聲波和電阻率分維之積df _ acrt進行交繪，採用儲層分維值分類技術統計分析這些參數變化的規律，並結合qx油田l區塊儲層類型經驗判別圖版，從而實現qx油田l區塊下白堊統的裂縫性儲層的類型識別。

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無法解密已加密的用戶數據值。

In course of auto - focusing, the paper takes the sum of the square of gray difference as focal distance evaluation function to decided that image is in focus or not quickly and put forward an effective auto - focus searching way based on threshold value and curve fitting. these improve speed and precision of auto - focusing

在自動聚焦過程中，論文採用了圖象的灰度差分的絕對值之和的平方作為焦距評價函數，解決了是否正確聚焦的快速判斷問題；採用了一種行之有效的基於閾值和曲線擬合的自動聚焦搜索方式，使聚焦速度和精度都得到了很大的提高。

Except for method of spline interpolation, mra method are used to resolve numerical approximation problems, too

除了應用樣條函數插值方法外，解決數值逼近問題還可以採用小波分析中多尺度分析的方法。

If one consigers the fact that the firstderivative of the function may be difficult to compute analytically the new procedure will become an attractive alternative and it has quartic convergence

這種混和方法對于解決導數求值比較困難的問題是一個良好的選擇，而且它具有四階的收斂性。

By taking these spatial points as initial guess, all exact real solutions withi n a certain range of variables are found using unrestraint optimization

以這些空間點為初始值，利用無約束優化，得到在一定值范圍內的原方程組的全部精確實數解。

In this paper, by using the property of fourier series a compound series consisting of trigonometric series and power series is established

摘要利用由三角級數和冪級數復合構成的函數項級數的有關性質，得到了一類變系數非齊次調和方程邊值問題的級數解。

Then the application of cauchy - inequality is illustrated by proving a proposition or an inequation, solving a triangle, and finding a solution to an equation or the maximum value & minimum value of a function

然後給出了柯西不等式在命題證明、不等式證明、求解三角形問題、函數最值、解方程等方面的應用。

Algebraic method to the eigenvalue problem for the schrodinger equation with cornell potential

勢下薛定諤方程本徵值問題的代數解法

Quantum operator methods associated with canonical transformation for 1d harmonic oscillator problem

哈密頓算符的對角化與能量本徵值問題的代數解法

In these thesis, on the basis of existing data collected of arch bridges and dynamics, simply introduce the development and application of the analytical method and finite element numerical analysis method of arch bridges. taking the example of pubugou cfst arch bridge, establish 3 - d finite element model of it with software ansys, and analyze its natural vibration. the effects on inherent vibration of the differences of structure parameters, the restriction of the deck and the effects of different arrangements of cross braces are analyzed

本文在收集有關拱橋及動力學資料的基礎上，分析了拱橋動力學的解析分析法和有限元數值分析方法的優缺點，同時以瀑布溝大橋為背景，使用ansys軟體建立了空間有限元模型，實施了橋跨結構的自振特性分析；並分析了考慮到模型簡化過程中部分結構參數取值差異、橋面板的約束狀況不同等因數對自振特性結果的影響；此外還對橋面上的橫撐布置不同導致對自振特性的影響作了分析。

The boundary value problems of singular perturbation with boundary layer at turning points are discussed. the asmptotic expansion are constructed. and the uniformly valid asmptolic estimation is obtained

主要討論了在轉點處出現邊界層現象的奇異攝動邊值問題，構造了形式級數解，得到了一致有效的漸近估計

Ordinary differential equation, first order differential equations, 2nd order differential equations, power series solution of differential equation, laplace transform, fourier series and transform, matrix, eigen value problem, partial differential equation

常微分方程式、一階微分方程式、二階微分方程式、微分方程式級數解、拉氏轉換、復利葉級數與轉換、矩陣、本徵值問題、偏微分程式。

Using the complex potential method in the plane theory of elasticity of an anisotropic body, a series solution to the stress field of a finite plate containing multiple cracks subjected to arbitrary loads is obtained by means of the faber series expansion, and the stress intensity factors at the crack tips are calculated based on the theories of fracture mechanics. equivalence yield stress is introduced in order to consider the effects of the plastic zones, with which the strip yield criteria is developed in the article so that the effects of structural size and the crack interactions on the stress distribution can be considered accurately. the effects of plate size, crack size and crack distributions on the stress intensity factors as well as the residual strength of the plate are studied detailedly

採用各向異性體平面彈性理論中的復勢方法，以faber級數為工具，得到了含多裂紋有限大板在任意載荷作用下應力場的級數解，並應用斷裂力學方法確定裂紋尖端的應力強度因子；引入當量屈服應力考慮裂尖塑性區的影響，提出基於帶屈服準則的剩餘強度分析模型，能夠充分考慮結構尺寸和裂紋之間相互作用對應力場的影響；通過數值計算詳細討論了結構尺寸和裂紋之間位置關系對應力強度因子和結構剩餘強度的影響規律，得到了一系列對工程應用具有實用價值的結論。

Using the complex potential method in the plane theory of elasticity of an anisotropic body, the series solution of finite anisotropic thin plate containing an elliptical inclusion is proposed with the help of faber series. a hybrid element with an elliptical inclusion for anisotropic materials is obtained by using the hybrid variable principle, and the element efficiency is verified by numerical examples. the state of the damage is modeled by an elliptical soft inclusion, and using the point stress criterion based on characteristic curve and yamada - sun etc. criteria, the prediction of the strength of a composite laminate with damage is set up

首先基於經典層板理論，將復合材料層板的彈性問題化歸為均勻各向異性板來求解；採用各向異性體平面彈性理論中的復勢方法，以faber級數為工具，給出了有限大含橢圓核各向異性板彈性問題的級數解形式；利用雜交變分原理，成功導出含橢圓核各向異性板雜交應力有限元，並用算例驗證了該單元的可行性和有效性；採用含剛度折減橢圓形彈性核的沖擊損傷模型，引入基於特徵曲線和yamada - sun破壞準則的點應力判據，建立了含損傷復合材料層板剩餘強度的分析方法；通過數值計算詳細討論了各種幾何參數對損傷層板應力分佈、剩餘強度的影響，得到了一系列對工程應用具有實用價值的結論。

The transient mathematical equations are addressed for the coupled heat and moisture transfer by taking account of moisture accumulation procedure. an analytical method by means of the transfer function is proposed to predict the transient distributions of temperature and moisture content at different interfaces in walls. a numerical analysis approach based on an efficient finite - difference method is developed to deal with the procedure of coupled heat and moisture transfer in a multilayer wall with nonlinear boundary conditions considered

建立了考慮濕積累過程的瞬態熱濕耦合模型，在方程中引入了濕積累項；發展了一種傳遞函數解析方法進行墻體內不同剖面處溫度和含濕量的動態預測；首次提出了一種基於有效有限差分法預測非線性邊界條件下多層多孔結構內的傳熱傳濕過程的數值分析方法，求解過程中考慮了瞬態邊界條件，從而避免了通常處理中由於邊界條件設定為常數而給計算帶來的誤差，對于多層結構每一層物性參數的非連續性，則採用了有效的有限差分逼近處理。

In the following section, we reconstruct the soliton solution of kgs equation wholly by use of the disturbance equation where are parameters. through varying the parameters in the disturbance equation, we get abundant types of soliton solutions of the kgs equation

利用「擾動」方程中參數的不同取值，不僅得到了seehz型的孤子解，還得到了tanhz型的孤子解、三角形式的周期解、有理解、 jacobi橢圓函數解和v慫lerstrass橢圓函數解。

Meanwhile, we point out the privilege and defective of cim. the fourth chapter is the main body of this paper. we explore how to apply the cim to solve unconstrained optimization problems effectively

第四章是本文的主要部分，探討了錐模型信賴域子問題的求解及不完全錐函數插值模型演算法的數值實現。

The major achievements are listed as the followings : mathieu functions remain difficult to employ, mainly because of the impossibility of analytically representing them in a simple and handy way. the methods for the computation of all mathieu functions of integer orders for large range of the order n and the parameter q were presented here. the calculations were made by programs using matlab to compute the mathieu functions

本論文的主要工作:由於在使用馬丟函數時存在一些困難，主要是因為不能簡單方便地對其進行解析表示，我們給出整數階各類馬丟函數的詳細計算方法，該方法適合較大范圍的階數n和參數q值，實際計算中採用了matlab軟體進行編程實現，並給出了各類馬丟函數在自變量和q值兩個參數變化下的三維可視化圖形。

Using riemann - schwarz ' s symmetry principle of complex functions, the above problems are transformed into riemann - hilbert boundary problems. by combining the analysis of singularity of complex functions, generalized liouville ' s theorem, cauchy model integral and residue theorem, the general solutions of above problems are presented

創造性運用復變函數解析延拓原理，將上述問題轉化為riemann - hilbert邊值問題，結合復應力函數奇性主部分析方法、廣義liouville定理、 cauchy型積分和留數定理，獲得了上述問題的一般解答。