The full space calculation model, which suits for the asymmetric structure sometimes even including air below the surface of medium, can enable simulative result to approach real one. The FDTD algorithm based on the mixed ABCs is proper to calculate the transmission line where the electromagnetic wave is transmitted in order to send electromagnetic energy along central conductor. The calculation efficiency will be raised if the PML absorbing boundary condition is set on both planes of transmitting direction and so is the MUR two-order absorbing boundary condition in the other planes.

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The operational principle of electro-optic ADC(analog-to-digital converter) is presented in the paper.

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The new method has two key steps: one is to get the automorphism group of HEm, and the another one is to introduce the concept of semi-Reinhardt domain and get its complete orthonornal system.

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According to perturbation theory and local Born approximation method, we derived the full DSR migration approaches based on the dual-domain propagators.

在前人研究的基礎(chǔ)上，本文首先參照攝動理論和局部Born近似方法aaaaeee，系統(tǒng)地推導(dǎo)了基于雙域傳播算子的DSR全偏移方法国产一区日韩动图。

Thirdly, on the base of the existent error estimate of elliptical Galerkin projection operator, obtain semi-discrete and complete-discrete error estimates betwent EFG solution and exact solution of parabolic partial differential equation. Semi-discrete error estimate show that the rank of r is accordance with the approximation rank of subspace S_h. Complete-discrete error estimates show that it not only have relation with radius r of domain of influence, but also have relation with the step length of time variable and the way of discrete.Lastly, give typical examples and draw up procedures of MATLAB.

再次，在"橢圓Galerkin投影"算子的誤差估計的基礎(chǔ)上99久久蜜v视频，對用EFG法解拋物型偏微分方程的EFG解與精確解之間作了半離散和全離散的誤差估計www.直接看黄色视频大全清纯，半離散的誤差估計表明所給出的誤差界限關(guān)于r的階是與子空間S_h的逼近階相一致的，全離散的誤差估計表明所產(chǎn)生的誤差不但與影響域半徑r有關(guān)在线视频xxxx，而且與離散時間變量的步長τ及其離散方式有關(guān)日本特级片。

Firstly, the structure of all phase spectrum is analyzed and the all phase spectral interpolation formula is derived.

首先分析了全相位頻譜的結(jié)構(gòu)，給出全相位頻域插值公式。

In order to resolve this problem,an effective conversion of fitted-body coordinate has been used in numerical simulations of flow field within a facture of layered medium ,resulting in a successful transformation of 2D flow-field calculation within a fracture from a complex physics domain to a regular calculation domain.

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We denote by M_n and T_n the space of n×n full matrices and the space of n×n upper trangular matrices over F, respectively.

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Log-domain companding technique takes advantage of the exponential I/V characteristics of the active devices such as bipolar junction transistors, compressing the dynamic range of the input sigal and reducing internal voltage amplitudes, it can maintain large dynamic range and high operating frequency under low supply voltage , the main area of application for this technique is the implementation of continuous-time fully integrated filters with low voltage, wide dynamic range, high-frequency, and wide tenability.

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The conditions to measure accurately and the principles to select parameters of the multi— probes EST method are proposed, and the theoretical research, computer imitation and the experiment on a machine tool prove that these principles and suggestion are necessary and effective. The influence of the initial value errors of the probes, the installation error of the probes system, and the remaining error caused by the radical error motion are analyzed quantitively on the measurement accuracy of the multi—probes EST method. The influence of the error caused by the probe's axes which is not in a plane and the perpendicularity error of the plane which the probe's axes is in to the stational axis are discussed on the measurement results.

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