Results 81 to 90 of about 239,474 (208)
CALCULATION SPECIFICATION OF ACOUSTIC SCREENS LOCATED IN PRODUCTION AREA
Advanced Engineering Research, 2014 Acoustic screens are one of the means to provide sound insulation and noise reduction on its path fr om the source to the target point (TP, the workplace).
Veronika Alexandrovna Bondarenko +2 more
doaj +1 more source
Acoustic suspension system [PDF]
, 1983 An acoustic levitation system is described, with single acoustic source and a small reflector to stably levitate a small object while the object is processed as by coating or heating it.
Lee, M. C., Wang, T. G.
core +1 more source
On the Suppression of Noise from a Fast Moving Acoustic Source using Multimodality
, 2015 International audienceThe problem of cancelling the noise from a moving acoustic source in outdoor environment is investigated in this paper. By making use of the known instantaneous location of the moving source (provided by a second modality), we ...
Jutten, Christian +2 more
core +1 more source
Coupled vortex shedding and acoustic resonances in a duct [PDF]
, 1985 Undesirable sound generation in the combustion chambers of solid propellant rocket motors previously has been attributed to vortex shedding from obstructions that are uncovered as the propellant burns back. An experimental investigation of the phenomenon
Aaron, K. M., Culick, F. E. C.
core
Sensors, 2018 The energy reading has been an efficient and attractive measure for collaborative acoustic source localization in practical application due to its cost saving in both energy and computation capability.
Yongsheng Yan +4 more
doaj +1 more source
Enhanced Acoustic Emission in Relation to the Acoustic Halo Surrounding Active Region 11429
, 2015 The use of acoustic holography in the high-frequency $p$-mode spectrum can resolve the source distributions of enhanced acoustic emissions within halo structures surrounding active regions.
Donea, Alina C. +2 more
core +1 more source
Bearing detection in the presence of two sources of varying coherence using the complex cepstrum [PDF]
The effect of the presence of two acoustic sources (one, the primary, whose location is to be detected) of varying coherence on a cepstral bearing finding procedure is experimentally studied.
Elliott, K. B., Fuller, C. R.
core +1 more source
Intelligent location of simultaneously active acoustic emission sources: Part II
, 2007 Part I describes an intelligent acoustic emission locator, while Part II discusses blind source separation, time delay estimation and location of two continuous acoustic emission sources. Acoustic emission (AE) analysis is used for characterization and location of developing defects in materials.
Kosel, T., Grabec, I.
openaire +3 more sources
Inversions of statistical parameters of an acoustic signal in range-dependent environments with applications in ocean acoustic tomography [PDF]
, 2012 The paper presents an application of a method for the characterization of underwater acoustic signals based on the statistics of their wavelet transform sub-band coefficients in range-dependent environments. As it was illustrated in previous works, this
Smaragdakis, Costas, Taroudakis, Michael
core
Surface waves in solar granulation observed with {\sc Sunrise}
, 2010 Solar oscillations are expected to be excited by turbulent flows in the intergranular lanes near the solar surface. Time series recorded by the IMaX instrument aboard the {\sc Sunrise} observatory reveal solar oscillations at high resolution, which allow
Barthol, P. +12 more
core +1 more source