Results 61 to 70 of about 544,892 (367)
Archives of AcousticsThe article presents the results of comparative studies concerning the efficiency of systems aimed at minimising the acoustic nuisance of noise generated by the railway vehicle movement.
Grzegorz KLEKOT +3 more
doaj +1 more source
The study of the effectiveness of sound insulation of gypsum wall boards with “Shimast” coating [PDF]
MATEC Web of Conferences, 2020 The article presents the experimental studies of sound insulation of a single-layer barrier made of gypsum wall boards with a thin-layer coating. The coating consists of a viscous base and glass airless microgranules. The coating increases the efficiency
Totunov Semen +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Charge carrier concentration and mobility in TiO2, ZrO2, and HfO2 powder films are experimentally mapped as a function of temperature. The results uncover polaron‐mediated transport regimes and field‐activated conduction, enabling the design of oxide‐based electronic and energy devices with thermally tunable functionality.
Beatriz Moura Gomes +3 more
wiley +1 more source
On the Evaluation of the Shielding Effectiveness of Electrically Large Enclosure
Advanced Electromagnetics, 2012 The shielding effectiveness (SE) has become afundamental step in testing active or passive electricdevices. The Reverberating Chamber (RC) is a wellestablishedmethod for determining the SE since has theadvantage to expose the material to a more ...
A. Gifuni +6 more
doaj +1 more source
Acoustic tests of type KPF1 high-pressure external gear pumps
Technical Transactions, 2020 This article presents the results of testing the sound pressure level and sound power level of the experimental 3PW-KPF1-24-40-2-776 high-pressure gear pump. Acoustic tests were conducted in an reverberation chamber.
Osiński Piotr +3 more
doaj +1 more source
Acoustical Modeling of Reverberation Chambers [PDF]
The Journal of the Acoustical Society of America, 1970 Critical listening tests conducted in full-scale reverberation chambers utilized in the recording industry reveal that there are often two major faults present in the decay of sound in the frequency range below 1000 Hz: (1) prolonged decay of certain axial modes resulting in a characteristic tone imparted to program materials; (2) beating between the ...
Jose C. Ortega +2 more
openaire +2 more sources
Validation and Use of a Vibrating Intrinsic Reverberation Chamber for Radiated Immunity Tests
2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI), 2020 A Vibrating Intrinsic Reverberation Chamber (VIRC) has been installed in a semi-anechoic chamber that is normally used for electromagnetic interference test in the automotive industry and its performances evaluated.
Danilo Izzo +3 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.Phase‐field modeling reveals the mechanisms behind short‐term ferroelectric imprint in Hf0.5Zr0.5O2 polycrystalline thin films. Combined with a charge trapping model, the proposed framework accurately reproduces coercive field shifts with pause time and their recovery through field cycling in polarization‐voltage measurements, offering valuable ...
Kévin Alhada‐Lahbabi +10 more
wiley +1 more source
Impacts of Absorber Loadings on Simulating the Multipath Channel in a Reverberation Chamber
International Journal of Antennas and Propagation, 2017 In reverberation chambers, the multipath channels with different delay characteristics can be generated by loading the chamber with different amounts of absorbers.
Xin Zhou +7 more
doaj +1 more source
European Conference on Antennas and Propagation, 2020 Antenna characterization using reverberation chamber (RC) has become the new trend in RC measurements. In this work, we compare three antenna characterization methods in RC.
W. Krouka +4 more
semanticscholar +1 more source