Results 41 to 50 of about 239,474 (208)
Shareholders as Principals [PDF]
, 2002 This paper discusses experimental techniques for detecting if there are multiple sources in a duct and obtaining the acoustic characteristics of these sources.
DeMott, Deborah A.
core +1 more source
, 2020 This paper develops mfEGRA, a multifidelity active learning method using data-driven adaptively refined surrogates for failure boundary location in reliability analysis.
Chaudhuri, Anirban +2 more
core +1 more source
Experimental and Numerical Investigations of Acoustic Variations in a Classroom Environment
Archives of AcousticsThe acoustic behaviour of a classroom is vital for an effective teaching-learning process. The present work aims to experimentally determine the acoustic performance of a typical classroom. The full-scale experiment was conducted at the Seminar Hall, the
Amit Kumar Singh CHAUHAN +2 more
doaj +1 more source
Sonic crystal lenses that obey Lensmaker's formula [PDF]
, 2003 This paper presents a theoretical study of the phenomenon of acoustic imaging by sonic crystals, which are made of two-dimensional regular arrays of rigid cylinders placed in parallel in air.
Beaver W L +19 more
core +1 more source
Elastic Wave Measurement Using a MEMS AE Sensor
Applied Sciences, 2017 In recent years, with the continuing progress of aging social infrastructures such as bridges and tunnels, there has been high demand for the assessment of deterioration of their performance and conditions.
Takahiro Omori +5 more
doaj +1 more source
Effects of a Subsurface Eddy on Acoustic Propagation in the Northwestern Pacific Ocean
Journal of Marine Science and Engineering, 2023 Using a ray tracing model, acoustic propagation through a subsurface eddy is investigated. The eddy with a 460 km diameter lies at approximately 23° N, 126° E.
Anqi Xu +6 more
doaj +1 more source
Locating Multiple Multipolar Acoustic Sources Using the Direct Sampling Method [PDF]
Communications in Computational Physics, 2019 This work is concerned with the inverse source problem of locating multiple multipolar sources from boundary measurements for the Helmholtz equation. We develop simple and effective sampling schemes for location acquisition of the sources with a single wavenumber.
Zhang, Deyue +3 more
openaire +2 more sources
The Reconstruction of Multiple Acoustic Sources That Fulfill the Predetermined Sound Level on a Certain Target Field Location [PDF]
, 2007 In noise level control, the surface acoustic property of noise sources is one of important initial information. The noise control will be more efficient and effective if we know not only the properties of noise source surface, but also know the most ...
Setiadikarunia, D. (Daniel)
core
A New Acoustic Emission Source Location Method Using Tri-Variate Kernel Density Estimator
IEEE Access, 2019 A new AE location method using tri-variate kernel density estimator is developed in this paper. Firstly, combinations of every six arrivals are obtained from a multi-sensor location system, and the preliminary location results are obtained by solving the
Zilong Zhou +6 more
doaj +1 more source
Subjective evaluation of an emerging theory of low-frequency sound source localization in closed acoustic spaces [PDF]
, 2014 An earlier reported theory of low-frequency sound-source localization within closed acoustic spaces proposed that virtual image acuity is strongly dependent on sufficient inter-arrival time between a direct sound and its first reflection.
Hawksford, Malcolm O. J., Hill, Adam J.
core