A method to solve the scattering acoustic field of complex target was proposed for the near-field scattering characteristics of an underwater target in high-frequency.
针对水下目标高频近场散射特性,提出了一种求解水下复杂目标散射声场的方法。
Effect of phonon frequency on phonon scattering in isotope-doped Si;
声子频率对同位素掺杂硅声子散射的影响
This paper focuses on the phonon frequency effect and the isotope-doped concentrates effect on the phonon scattering in isotope-doped Si.
掺杂点缺陷对声子的散射是影响电绝缘体热导率的重要机制之一,其中声子频率和掺杂点缺陷浓度是影响声子散射的重要因素。
Phonons play a great role in the microcosmic mechanism of heat transfer of silicon,the process of phonon scattering in doped silicon is studied by molecular dynamics simulation with high performance computers in this paper, then the composition of energy is analyzed after scattering,in which the greater transmitted energy means the high thermal conductivity qualitatively.
声子导热是硅晶体中的主要导热微观机制,本文借助高性能计算机,利用分子动力学方法研究了掺杂点缺陷对硅中声子散射的过程,定量分析声子散射后的能量组成,透射能量多即定性理解为导热性好。
A new tree structure of fast multi-pole boundary element method for solving the acoustic scattering problem
求解声波散射问题的边界元快速多极算法的一种新型树结构
Two types of methods are usually used for solving problems of numerical modeling of acoustic scattering.
声波散射的数值模拟问题一般用网格法或积分方程法解决。
The bistatic sonar localization and sound scattering of underwater target have been thoroughly studied.
本文依据多基地声呐的工作特点，对多基地声呐应用中的关键技术进行了研究，给出了有关多基地声呐定位和多基地目标声散射特性的研究方法；并通过仿真，对各种方法进行了性能评估和比较；最后通过水池实验，给出了多基地声呐目标特性研究的实验结果。
BEM Model of ultrasonic scattering field for penny-shaped crack in solid
固体中币形裂纹散射声场边界元模型
Scattering Field Analysis of the Underwater Ribbed Double-Decked Elastic Shell;
水下加肋双层弹性壳体散射声场分析
Investigation on the characteristic of scattering field distribution for underwater flat structure with multiple edge shapes
水下复合边缘扁平结构散射声场特性研究(英文)
Investigation on the Characteristic of Scattering Field Distribution for Underwater Flat Structure with Different Edge Shapes
水下不同边缘扁平结构散射声场特性研究(英文)
Study on the optical system for the record of the pulsed acoustic field andthe scattering of the cylinderical-like objects buried in underwater sand
对记录脉冲声场的光学方法及对沙中埋藏的类圆柱体的散射声场的研究
Influence of Reverberation Chamber Field Uniformity Using Acoustic Diffusor
声学散射体对混波室场均匀性的影响
Coupling of exterior/interior field with BEM and numerical simulation of acoustic scattering of fluid target
边界元计算内外声场耦合及流体目标声散射
Random-incidence and diffuse-field calibration of sound level meters
GB/T17312-1998声级计的无规入射和扩散场校准
Analysis of the scattering characteristic for the hypersonic flow field of semi-sphere
高超声速半球绕流流场电磁散射特性分析
Aim To recover the impedance coefficient from the far field pattern of the scattered wave of the acoustic scattering problem with impedance boundary condition.
目的从阻尼边界条件声波散射问题的散射场的远场模式出发去反演阻尼系数。
Analysis of the Scattering Characteristic for the Hypersonic Flow Field with Near Wake Region of Sphere
高超声速圆球绕流流场及其近尾尾迹流场电磁散射特性分析
deep scattering layer
测深声波)深海散射层音波散射层
Recover the acoustic wave impedance coeffcient from the P-th Fourier coeffcient of the far field pattern
利用散射波远场模第P个傅立叶系数重建声波阻尼系数
Research on the Surface and Volume Scatterings and Their Applications
电磁场面散射和体散射研究及其应用
diffuse-field response of microphone
传声器扩散声场频率响应；传声器扩散场响应
diffuse-field sensitivity of microphone
传声器扩散场灵敏度
The Analytic Solution of Scattering Field and its Characteristics for An Ellipsoid;
椭球粒子散射场的解析解及其散射特性
Dynamic characteristics of weak scattering produced far Gaussian speckle field
弱散射产生的远场高斯散斑场的动态特性