Results 11 to 20 of about 61,780 (267)
Magnetoinductive waves in attenuating media [PDF]
Scientific Reports, 2021 AbstractThe capability of magnetic induction to transmit signals in attenuating environments has recently gained significant research interest. The wave aspect—magnetoinductive (MI) waves—has been proposed for numerous applications in RF-challenging environments, such as underground/underwater wireless networks, body area networks, and in-vivo medical ...
Chu, S +5 more
openaire +4 more sources
Fractional wave equations with attenuation [PDF]
Fractional Calculus and Applied Analysis, 2013 Fractional wave equations with attenuation have been proposed by Caputo [5], Szabo [27], Chen and Holm [7], and Kelly et al. [11]. These equations capture the power-law attenuation with frequency observed in many experimental settings when sound waves travel through inhomogeneous media.
Straka, Peter +3 more
openaire +2 more sources
Wave attenuation by flattened vegetation (Scirpus mariqueter)
Frontiers in Marine Science, 2023 With the capacity to reduce wave energy and trap sediment, Scirpus mariqueter has become an important native species of annual grass for ecology restoration at the Yangtze Estuary in eastern China. Due to seasonal variances of biophysical characteristics,
Yuxi Ma +11 more
doaj +1 more source
Theoretical Analysis of Longitudinal Wave Attenuation in a Stressed Rock With Variable Cross-Section
Frontiers in Earth Science, 2019 In this work, the longitudinal wave propagation in stressed rock with variable cross-section is investigated analytically. Considered the stress-sensibility of dynamic elastic modulus and the viscosity of rock, a modified viscoelastic stress-strain ...
Wei Yuan +3 more
doaj +1 more source
THE INFLUENCE OF CURRENTS ON WAVE ATTENUATION
Coastal Engineering Proceedings, 1988 Measurements have been made of wave height decay in a rough bottomed flume for waves alone and for waves combined with 3 following currents. Tests have also been carried out to quantify energy dissipation at the sidewalls under these conditions. Results show that waves attenuate less rapidly when propagating on a following current, with a corresponding
Richard R. Simons +2 more
openaire +2 more sources
Attenuation of Torsional Waves in Teflon [PDF]
The Journal of the Acoustical Society of America, 1960 Measurements of the attenuation of torsional waves in a cylindrical rod of circular cross section have been made. Temperature, crystallinity, and axial stress (tension) are varied, and the transmission loss is measured as a function of these variables. The results of the measurements and a description of the experimental technique will be presented.
openaire +1 more source
Research on Wave Attenuation Performance of Floating Breakwater
Energies, 2021 In this study, a new type of double-pontoon floating breakwater was designed to improve the wave attenuation performance through the addition of suspended Savonius propeller-blade.
Hao Li +3 more
doaj +1 more source
Attenuation of coda waves in Western Anatolia
Physics of the Earth and Planetary Interiors, 1994 Abstract By analyzing the decay of coda wave amplitude, we have determined coda Q,Qc, in Western Anatolia (Turkey). Using the single isotropic scattering model, we analyzed 116 earthquakes which registered at the Gebze station by using five narrow frequency bands centered at 1.5, 3, 6, 8 and 10 Hz.
AKINCI, A, TAKTAK, AG, ERGINTAV, S
openaire +3 more sources
Gravitons to photons — Attenuation of gravitational waves
International Journal of Modern Physics D, 2015 In this essay, we examine the response of an Unruh–DeWitt (UD) detector (a quantum two-level system) to a gravitational wave background. The spectrum of the UD detector is of the same form as some scattering processes or three body decays such as muon-electron scattering or muon decay. Based on this similarity, we propose that the UD detector response
Jones, Preston, Singleton, Douglas
openaire +3 more sources
Attenuation of dispersed waves [PDF]
Journal of Geophysical Research, 1964 A measure of the absorption of elastic waves is the specific absorption coefficient 1/Q. In dispersive mediums, whether the dispersion is due to geometry, inhomogeneity, or both, measurements are often made outside the body and the measurements must be interpreted as to the distribution of values of 1/Q within the body.
Knopoff, L. +4 more
openaire +2 more sources