This section presents two kinds of characteristic schemes, one is the natural use of the usual backward Euler characteristic difference scheme ( [60] ) onto the triangular mesh, the other replaces the backward Euler's method by modified Euler formula to approximate the characteristic differential equation, so that the discretization for characteristic curve can get up to second order accuracy.

本節(jié)給出了兩種三角形網(wǎng)格上的特征差分格式中国国产高清免费AV片，第一種是通常的向后Euler型特征差分格式（[60]）在三角形網(wǎng)格上的自然運用女人逼的视频，第二種采用§3.3亚洲色图欧美色图综合、§3.4的離散思想Ⅴ片视频免费在线观看，使用改進的Euler公式代替向后Euler公式來近似特征微分方程又黄又大又粗的视频，使其對特征線的離散達到了二階精度无码粉嫩小泬无套在线观看免费。

The thesis is organized as follows:In Chapter 1,a new partial differential equation model for Spontaneous Potential log in heterogeneous formations is introduced.At the same time,the existence and uniqueness of weak solution to the problem are proved,and the problem of resistance identification in SP log is studied.Furthermore,a jump condition capturing finite difference scheme is proposed and applied to solve such elliptic interface problems.The effects of various factors on SP response,which include objective layers resistivity,bed thickness,bore-hole diameter,invasion and water-flooded zones and so on,are investigated quantitatively by the proposed method, and satisfactory results are obtained.

具體安排如下：第一章首先建立復雜地層中自然電位測井的偏微分方程數(shù)學模型，證明了該邊值問題弱解的存在唯一性隐私偷拍偷窥AV合集，在此基礎上研究了自然電位測井電阻率識別問題：然后發(fā)展了用于求解橢圓交界面問題的間斷捕捉有限差分方法亚洲中文久久精品无码无卡，利用該方法定量分析了目的層電阻率、地層厚度91精品网站、井徑717理论午夜福利电影、侵入帶和水淹層等因素對自然電位測井響應的影響，取得了滿意的結果男女晚上做爽爽的视频无遮挡。

By discussing the position hypothesis of fractional-dimension derivative about general function and the formula form the hypothesis of fractional-dimension derivative about power function, the concrete equation formulas of fractional-dimension derivative, differential and integral are described distinctly further, and the difference between the fractional-dimension derivative and the fractional-order derivative are given too. Subsequently, the concrete forms of measure calculation equations of self-similar fractal obtaining by based on the definition of form in fractional-dimension calculus about general fractal measure are discussed again, and the differences with Hausdorff measure method or the covering method at present are given. By applying the measure calculation equations, the measure of self-similar fractals which include middle-third Cantor set, Koch curve, Sierpinski gasket and orthogonal cross star are calculated and analyzed.

通過討論一般函數(shù)的分維導數(shù)的位置假設及冪函數(shù)的分維導數(shù)的形式假設欧美特级婬片免费播放口，進一步明晰了冪函數(shù)的分維導數(shù)、分維微分及分維積分的具體方程形式www.免费视频在线观看，給出分維導數(shù)與分數(shù)階導數(shù)的區(qū)別亚洲中文字幕一区二区三区营，隨后討論了基于一般分形測度的分維微積分形式定義導出的自相似分形的測度計算方程具體形式，給出了其與目前 Hausdorff 測度方法的區(qū)別国产Av人人澡夜夜澡人人爽，并對包括三分 Cantor 集合欧美性爱网站啊啊啊、 Koch 曲線欧美性爱男人皇宫、 Sierpinski 墊片及正交十字星形等自相似分形在內的測度進行了計算分析。

The Fourier method and heuristic stability theory for the analysis of the computational stability criterion of the difference scheme of linear partial differential equation are also briefly introduced.

對分析線性偏微分方程差分格式計算穩(wěn)定性判據(jù)的Fourier方法久久性激情、啟發(fā)性穩(wěn)定性分析方法经典A片免费观看视频，也做了簡要的介紹。

Near the bifurcation point, the linear stability of difference differential equation which describes acoustooptic bistable systems is analyzed, the expression of resonance frequency and amplification multiple are given.

在分岔點附近自拍少妇亚洲，通過對描述布拉格型聲光雙穩(wěn)系統(tǒng)的差分－微分方程進行線性穩(wěn)定性分析日本三级a网站，得到了系統(tǒng)對小信號放大時的共振頻率，給出了放大倍數(shù)的表達式黄色片网站国产。

To discuss deeply, this article use indirect means to research by difference differential equation, that is: using the Liyapnof function to discuss the time delay stability of one-dimensionality force telepresence system in order to determine the time delay limits which could ensue the system work normal.

為了進一步深入討論亚洲精品第2页，本文還從差分微分方程入手，采用間接法進行進一步討論爽爽的电影AV片，即：利用李亞普諾夫函數(shù)對一維力覺臨場感系統(tǒng)的時延穩(wěn)定性進行討論91人妻PORNY九色最新社区，確定保障系統(tǒng)正常工作的時延界限。

Differential coefficient and difference simulation equation of gray model GM (1, 2), representing the relationship between 28d compressive strength and 4-32μ m particle content respectively is

顆粒粒級范圍對強度的灰色系統(tǒng)關聯(lián)度分析結果表明：對于普通硅酸鹽水泥水蜜桃在线无码视频免费，4-8μm顆粒含量對水泥3d抗壓強度的影響最大丝袜剧情国产AV办公室，8-16μm顆粒含量對水泥28d抗壓強度的影響最大，對水泥90d抗壓強度WWW尤物在线，則16-24μm顆粒的影響最大91插插插插。28d抗壓強度與4-32μm顆粒含量灰色模型GM（1，2）的微分方程和差分模擬式分別為

By applying the explicit and implicit Euler methods to the neutral delay differential equation, two difference equations of the numerical solution are obtained.

把顯式Euler方法和隱式Euler方法分別應用到這個中立型微分方程国产精品永久久，得到了兩個關于數(shù)值解的差分方程一级迷奸影院。

The cobweb model that basically debated price wave motion respectively in the light of different situation, differential kinetic model and difference distribute equation model.

主要針對不同情況分別討論了價格波動的蛛網(wǎng)模型、微分動力學模型及差分方程模型三级黄色免费网。

Space fractional differential equation ; finite difference approximation ; stability ; convergence

空間分數(shù)階微分方程国产在线观看麻豆；顯式有限差分格式；隱式有限差分格式无码秒播成人影视网站大全免费；穩(wěn)定性分析人人人人操人人干；收斂性分析