Based on transfer matrix method (TMM) and virtual boundary element method (VBEM), proposed a direct solution to 2-d sound-structure interaction problem under harmonic excitation is proposed.
本文基于传递矩阵法(TMM)和虚拟边界元法(VBEM)，提出了一种求解在谐激励作用下二维结构-声耦合问题的直接法。
A direct 3-d image reconstruction method based on many-knot interpolating spline and finite series-expansion technique is presented in this paper.
本文提出了一个基于多结点插值样条和有限级数展开法的直接三维图像重建方法。
Note: 1. The laying method in correspondence with D category in the table 1-18(GB/T16895.15-2002), which is suitable for the direct cable burying or cable layout in the underground conduit.
注：1。敷设方式对应于表1-18（GB/T16895.15-2002）中的D类，适用于电缆直接埋地或电缆敷设在地下的管道内。
We present some simple practical 1-d inversion methods, including Bostick inversion method and the method which approximates magnetotelluric field by direct current field.
本文介绍几种简单易行而又相当准确的一维反演方法，其中包括博斯蒂克反演方法和用直流电场分布逼近大地电磁场分布的反演方法。
Based on inverse method for supercritical flow control, this paper gives a direct computational method, for flows in 3-d controlling structures.
本文在急流控制逆命题的研究基础上，首次探讨性地提出了三维控制急流的正命题解法。
This paper presents the finite element method for solving the direct-current field of point source on a 2-d anisotropic geoelectric section.
本文给出点源二维各向导性地电断面的直流电场有限元解法。
This paper presents the finite element method for solving the direct-current field of point source on a 2-d anisotropic geoelectric section.
本文给出点源二维各向导性地电断面的直流电场有限元解法。
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