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Oskar Bschorr and Hans-Joachim Raida
The coordinate-free one-way wave equation is transferred in spherical coordinates. Therefore it is necessary to achieve consistency between ????????????????
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Natalie S. Grigorieva, Fiodor F. Legusha, Dmitry V. Nikushchenko and Kirill S. Safronov
A numerically efficient technique is presented for computing the backscattered fields from two spherical targets embedded in an underwater sediment. The bottom is assumed to be a homogeneous liquid attenuating half-space. The transmitter/receiver is loca...
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Yuzhou Wang, Ali Matin Nazar, Jiajun Wang, Kequan Xia, Delin Wang, Xiaosheng Ji and Pengcheng Jiao
Triboelectric nanogenerators (TENG), which convert mechanical energy (such as ocean waves) from the surrounding environment into electrical energy, have been identified as a green energy alternative for addressing the environmental issues resulting from ...
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A. WIIN NIELSEN
The implications of cascade processes in barotropic and quasi-geostrophic models are reviewed using conservation of kinetic energy and enstrophy in the barotropic case and conservation of the sum of available potential and kinetic energy and of potent...
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Maxim Durach
Electromagnetic fields in bulk bianisotropic media contain plane waves whose k-vectors can be found using the method of the index of refraction?s operator and belong to the Fresnel wave surfaces that fall into one of the five hyperbolic classes of the Du...
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Denis Te?ak, Ivana Dobrilovic, Mario Dobrilovic and Davorin Jurenic
Blasting in clay soil in the field of anchoring and foundation of objects and structures has its benefits in construction and geotechnical practice. The foundations of the method lay in the fact that a shock wave is generated when the explosive charge is...
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Dozyslav B. Kuryliak and Oleksiy M. Sharabura
The problem of axially symmetric TM-wave diffraction from a bicone conjoined with an open-ended conical cavity is analysed rigorously. The scatterer is formed by the perfectly conducting semi-infinite and truncated semi-infinite conical surfaces; the sph...
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Shibao Deng, Yun Zhu and Yixin Zhang
By using the two-frequency coherence function model of a beam in a turbulent medium and the localized wave theory of the polychromatic beam, we develop the spectrum average mutual coherence function of the localized wave of Bessel?Gaussian amplitude enve...
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Jianguo Zhao, Yang Yu, Hao Xu, Rongtang Zhang, Yuxi Ma and Jialiang Li
Numerical seismic wave field simulation is essential for studying the dynamic responses in semi-infinite space, and the absorbing boundary setting is critical for simulation accuracy. This study addresses spherical waves incident from the free boundary b...
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Shengtao Chen, Han Zou, Guocai Qi, Dongju Li and Zhouyuan Xu
The rescue of ships in distress at sea relies mainly on rescue vessels, which includes the approaching process and the towing motion of the two ships. Ship rescue can be reduced to a two-ship problem, primarily involving the relative motion between ships...
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Gaofeng Sha
This study extends the second-order attenuation (SOA) model for elastic waves in texture-free inhomogeneous cubic polycrystalline materials with equiaxed grains to textured polycrystals with ellipsoidal grains of arbitrary crystal symmetry. In term of th...
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Dina Silva, Eugen Rusu and Carlos Guedes Soares
The wave energy in a shallow water location is evaluated considering the influence of the local tide and wind on the wave propagation. The target is the coastal area just north of the Portuguese city of Peniche, where a wave energy converter operates on ...
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Marcin Konarzewski, Robert Panowicz and Adam Jeschke
The experience of recent military missions clearly shows the importance of protecting vehicles and the people they carry from mines and IEDs. This protection can be achieved in many ways, using both active and passive solutions. One of the most popular s...
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Callum Daniels and Noel Perera
Due to the nature of their deployment, very few people know the location and course of a submarine during its time at sea, including only a handful of the ship?s crew. The possibility of immediate retaliation by the UK and her allies is aided by the subm...
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Kevin J. Parker and Miguel A. Alonso
The free space solution to the wave equation in spherical coordinates is well known as a separable product of functions. Re-examination of these functions, particularly the sums of spherical Bessel and harmonic functions, reveals behaviors which can prod...
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Adam C. Brown and Robert K. Paasch
A spherical wave measurement buoy capable of detecting breaking waves has been designed and built. The buoy is 16 inches in diameter and houses a 9 degree of freedom inertial measurement unit (IMU). The orientation and acceleration of the buoy is continu...
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Chunlong Ma, Dongyan Shi, Chao Li, Mengnan Wang and Dongze He
In order to study the influence of the pressure load generated during the pulsation of cavitation bubbles on the oblique 45-degree curved surface boundary. The curved surface boundaries have different curvatures. This study also designs a multi-angle bra...
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