Results 121 to 130 of about 20,239 (157)

Characteristic wave numbers for simple source formulations of acoustic radiation and diffraction problems

The Journal of the Acoustical Society of America, 1978
It is shown that the characteristic wave numbers for which the simple source formulation of acoustic diffraction problems fails can be obtained directly by use of the model’s integral equation. Characteristic wave numbers for diffraction by a rigid cylinder and by a rigid sphere are determined.
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On diffraction and radiation problem for a cylinder over a caisson in water of finite depth

International Journal of Engineering Science, 2004
A caisson and a vertical circular cylinder floating on the surface of fluid compose a wave power device. The hydrodynamic fluid/solid interaction becomes more complex due to the caisson. In this paper, in order to investigate the effects of the caisson on the cylinder's hydrodynamic coefficients and exciting forces, the expressions for velocity ...
Wu, BJ, Zheng, YH, You, YG, Sun, XY, Chen, Y   +4 more
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A NURBS-based high-order panel method for three-dimensional radiation and diffraction problems with forward speed

Ocean Engineering, 2008
Abstract A high-order Rankine panel method based on Non-Uniform Rational B-Spline (NURBS) is developed for solving the three-dimensional radiation and diffraction problems with forward speed. A NURBS surface is used to precisely represent the body geometry.
Zhiliang Gao, Zaojian Zou
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Principles of radiation, limit absorption and limit amplitude in problems of the diffraction of waves by one-dimensional periodic gratings

USSR Computational Mathematics and Mathematical Physics, 1987
Abstract The possibilities of three fundamental methods of obtaining “physical” solutions of stationary boundary value problems which simulate the diffraction of waves by one-dimensional periodic gratings are investigated.
Yu.K. Sirenko, V.P. Shestopalov
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Analysis of space and surface waves excitation in layered magnetodielectric and metamaterial structures in the context of radiation and diffraction problems

2nd European Conference on Antennas and Propagation (EuCAP 2007), 2007
The Green's functions of grounded magnetodielectric slabs with LE, LM waves' expansion and layered circular cylinder with E, H waves' expansion are used for surface and space waves analysis. Traditional magnetodielectrics and double negative materials are under consideration.
S. Knyazev, L. Lesnaya, S. Shabunin
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Solution of radiation and scattering problems in complex environments using a hybrid finite integration technique - uniform theory of diffraction approach

IEEE Transactions on Antennas and Propagation, 2005
The finite integration technique (FIT) is combined with the uniform geometrical theory of diffraction (UTD) for the solution of radiation and scattering problems in complex environments. The presented hybrid formulation is capable of handling large objects allowing in the same time a precise modeling of important geometrical details and material ...
A. Skarlatos, R. Schuhmann, T. Weiland
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Diffraction and geometric-optics approximations in the problem of laser radiation beaming through a turbulent atmosphere to distant moving objects

Quantum Electronics, 1995
The Rytov approximation is used to obtain expressions for the correlation function of the phase and amplitude of radiation which experiences phase conjugation and additional rotation on reflection from an adaptive mirror. The rotation allows for the angular aberration and is due to motion of the target.
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Diffract-and-destroy: Can X-ray lasers “solve” the radiation damage problem?

Ultramicroscopy, 2008
John C H, Spence, P W, Hawkes
openaire   +2 more sources

Influence of Bottom Flexibility on Radiation and Diffraction Problems Involving a Spherical Body in a Fluid

Journal of Vibration Engineering & Technologies, 2022
Lopamudra Das, Smrutiranjan Mohapatra
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
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