Results 21 to 30 of about 144,391 (309)
GEORADAR AND RADIOIMPEDANCE DIAGNOSTICS OF THE SELENGA RIVER WATER AREA
Геодинамика и тектонофизика, 2022 The relevance of the work is determined by the fact that no radiowave methods have ever been used to study the water areas of rivers and lakes and their geoelectric sections within the Baikal natural territory (BNT) in winter time.
V. B. Khaptanov +3 more
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Peano high‐impedance surfaces [PDF]
Radio Science, 2005 Following our previous work on metamaterial high‐impedance surfaces made of Hilbert curve inclusions, here we theoretically explore the performance of the high‐impedance surfaces made of another form of space‐filling curve known as the Peano curve. This metamaterial surface, formed by a two‐dimensional periodic arrangement of Peano curve inclusions, is
McVay, John +2 more
openaire +3 more sources
Space Weather, 2022 A study is made of the relations between geomagnetic and geoelectric field variation, Earth‐surface impedance, and operational interference (“anomalies”) experienced on electric‐power systems across the contiguous United States during the 13–14 March ...
Jeffrey J. Love +5 more
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Direction-of-arrival estimation with blind surface impedance compensation for spherical microphone array [PDF]
JASA Express Letters, 2021 The direction-of-arrival (DoA) estimation from spherical microphone array data requires mode strength compensation for removing the dependency on the array surface impedance.
Dongheon Lee, Byeongho Jo, Jung-Woo Choi
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IET Microwaves, Antennas & Propagation, 2023 The authors investigate electromagnetic scattering by a circular strip with impedance boundary conditions in detail. The excitation is obtained by the H‐polarised line source and the impedance boundary condition with different impedance values on each ...
Vasil Tabatadze +2 more
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Contactless Waveguide Characterization of Piezoresistive Materials for Wireless Strain Sensors
Sensors, 2022 Stretchable materials are widely used for the realization of various sensors, but their radio frequency behavior has not been fully characterized so far. Here, an innovative method is proposed for deriving the surface impedance of this kind of materials.
Sandra Rodini +3 more
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A comparison of impedance boundary conditions for flow acoustics [PDF]
, 2013 Acoustic liners remain a key technology for reducing community noise from aircraft engines. The choice of optimal impedance relies heavily on the modeling of sound absorption by liners under grazing flows.
Gabard, G.
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Time-Domain Behavior of Plasmonic Half-Spaces
IEEE Photonics Journal, 2012 The time-domain surface impedance for a plane-wave incidence on a half-space with conductive and plasmonic properties is theoretically investigated. This paper provides closed-form time-domain expressions of time-domain surface impedance values that can ...
M. Stumpf, G. A. E. Vandenbosch
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Noninvasive Solution for Electrochemical Impedance Spectroscopy on Metallic Works of Art [PDF]
, 2012 Metallic works of art of cultural relevance are continuously subjected to corrosion as the environment becomes increasingly polluted. A fast and simple method to in situ assess the conservation conditions is therefore required.
Parvis, Marco +5 more
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Instruments, 2021 Axions, hypothetical particles theorised to solve the strong CP problem, are presently being considered as strong candidates for cold dark matter constituents.
Andrea Alimenti +5 more
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