波方程 的英文怎麼說
中文拼音 [bōfāngchéng]
波方程
英文
wave equation-
Cusp wave solutions in a class of nonlinear equation
一類非線性波方程的尖波解A note on - dimensional dispersive long wave equation
維色散的長波方程求解的一個注記Legendry and chebyshev pseudospectral methods for the generalized symmetric regularized long wave equations
廣義對稱正則長波方程的勒讓德和切貝雪夫擬譜方法Explicit solutions of regularized long wave equation
正則化長波方程的顯式精確解A discrete - velocity model for the shallow water long wave equation
用離散速度方法計算淺水長波方程Spinor wave equation
旋量波方程New central - upwind scheme for shallow water equations
求解淺水波方程的半離散中心迎風方法Introduction to wave mechanics : schroedinger ' s equation, wave functions, wave packets, probability amplitudes, stationary states, the heisenberg uncertainty principle, and zero - point energies
介紹波動力學:薛丁格方程式，波方程式，波包，或然率，穩定態，海森堡不確定原理以及零點能量。Yushun wang, bin wang, zhongzhen ji, high order multisymplectic schemes for the nonlinear klein - gordon equation, applied mathematics and computation, to appear
王雨順，王斌，季仲貞，孤立波方程的保結構演算法，計算物理， 2004 ，第五期The polarization effect of the folded mirror is discussed, through solving the coupling wave equation numerically, its influence on the stability is analyzed. it indicates that the folded mirror plays an important role in restraining the green noises. 2
用jones矩陣法分析折疊鏡的偏振效應，通過數值求解耦合波方程討論了這一效應對綠光輸出穩定性的影響，說明了折疊鏡在抑制綠光噪聲上的重要作用； 2Theory and experiments of bulk - wave acousto - electro - optical ( aeo ) device, involving one - dimension and multi - dimension, are systematically studied. the thesis includes the following contents : coupled - wave equation theory of aeo interaction, determination of the optimum operating mode of aeo device, geometrical relationships of the anisotropic acousto - optic interaction, design and experiment of the aeo device. finally, the optimum design of ao device with beam steering theory is also studied
論文主要研究內容包括:一維和多維聲電光效應的耦合波方程及其衍射效率計算公式的建立、一維和多維聲電光器件最佳工作模式的選擇、聲電光晶體反常聲光互作用幾何關系的計算、 ln一維反常聲電光器件和kdp二維反常聲電光器件的設計製作以及實驗測試、正常與反常超聲跟蹤聲光偏轉器的優化設計。This paper gives a 45 degree up - going wave equation with an absorbing layer and constructs its implicit difference scheme
摘要給出了附加吸收層的三維45上行波方程，構造了該方程的一種隱式差分格式。Initial boundary value problems for nonlinear wave equations
非線性波方程的初邊值問題When the isotropic waveguide is under the isotropic disturbances, the coupling term due to polarization, which is presented in the coupled - mode theory of the wei - ping huang, is n ' t included in this rigorous vectorial coupled - mode theory, exactly, the rigorous vectorial cmt does n ' t contain the coupling term due to polarization which is include in the scalar coupled - mode theory because this term is counteracted with the other coupling term neglected under weakly guiding approximation. as for anisotropic disturbances, we get the coupled - mode equations with arbitrary dielectric tensors. from them, we obtain the coupled - mode equations of the slowly varying term c ( z ) which is more simplicity
當受到各向同性微擾時，我們發現嚴格的矢量理論所得到的耦合系數表達式中並不包括wei - pinghuang的理論中的偏振耦合項，更確切的說，偏振耦合項正好與因弱導近似而忽略的項相抵消，這就是標量理論所得到結果（有偏振耦合項）與矢量理論在標量近似下的結果（不含偏振耦合項）不一致的原因所在；當各向異性微擾時，我們得到了包含微擾介電張量各個分量的橫電磁場耦合波方程，討論了微擾介電張量各個分量對耦合的影響，而且從橫電磁場耦合波方程出發得到了形式更加簡單的只含有橫電場系數的緩變分量c _ （ z ）的耦合波方程和耦合系數表達式，並以弱導近似下的單模光纖兩正交偏振模耦合為例對耦合系數在不同條件下的取捨做了定性的分析。Three finite - difference methods, i. e., stagger grid, implicit and explicit algorithms, are analyzed in detail. multi - grid algorithm is firstly introduced in elastic wave simulation, to solve for the stability problem inherent in stagger grid and implicit algorithm, also for the efficiency problem inherent in explicit algorithm, and the precision, stability and efficiency for simulation of elastic wave arc increased by multi - grid method. phase - delay method is provided to effectively absorb boundary reflection and increase efficiency for wave motion simulation, based on phase delay and amplitude decaying features along wave propagation
在水平分層介質接收函數的波形反演研究的基礎上，本文系統闡述了非均勻介質中彈性波傳播數值模擬常用的三種有限差分方法：顯式差分、隱式差分和交錯網格法，首次將多重網格演算法應用於彈性波方程的數值模擬問題，克服了交錯網格法和顯式差分法穩定性差，以及隱式差分法計算效率低的缺點，大大提高了彈性波數值模擬的精度、穩定性和計算效率。Comprehensively discuss the issues in application, adaptive condition and performance, propose a fast arithmetic of forward modeling and depth migration in common shot gathers with one - way acoustic wave equation based on vrselrf, and verify the arithmetic by numerical simulation. concisely discuss the cause of the creation of evanescence and the problem of lateral amplitude discontinuity result from it. fourthly, use the reflectivity model, computed to describe the fracture model, with the formula of computation reflectivity based on elastic - acoustic approximation, and the wavelet model computed by the method, wavelet creation with fourier transform, we proposed, in conjunction with vrselrf wavefield extrapolation operator
第三，將頻率波數域穩定的變參考慢度rytov近似廣義屏波場延拓運算元（ vrselrf ）應用於疊前與疊后正演模擬、疊前與疊后深度偏移，對演算法應用中應注意的問題、適用范圍、性能等作了較為全面的論述；提出了基於vrselrf的單程聲波方程共炮記錄正演模擬和深度偏移快速演算法，並通過數值模擬試驗對演算法進行了驗證；簡要地討論了倏逝波的產生原因及其帶來的橫向振幅不連續性問題。Author, starts from the one - way wave equation of wavefield extrapolation, research the relationship and transform condition of wavefield extrapolation operators, and propose the steady variational reference slowness rytov approximation general screen wavefield extrapolation operator ( vrselrf ) which can adapt severe lateral velocity variations, in frequency - wavenumber domain, and the improved wavefield extrapolation scheme, also give the method to improve the computation efficiency. the achievement establishes the theoretic basis of the whole research
首先，從波場延拓的單程波方程出發，系統地研究了頻率波數域的波場延拓運算元之間的相互關系和轉換條件並在此基礎上提出了能適應劇烈橫向變速的頻率波數域穩定的變參考慢度rytov近似廣義屏波場延拓運算元（ vrselrf ）和部分波場延拓改進方案及提高運算效率的措施，為整個研究打下理論基礎。Global existence of solution for generalized shallow water equations
廣義淺水波方程解的整體存在性New multisoliton solutions forwhitham - broer - kaup equations in shallow water
淺水波方程新的多孤子解Parallel solutions to shallow - water equations by partitioning
基於劃分方法的淺水波方程并行求解的實現分享友人