Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Amjad J. Aref"'
Publikováno v:
Journal of Structural Engineering. 149
Publikováno v:
Physical Review Applied. 16
Beam forming using phased arrays forms the basis of several sonar communication and biomedical imaging techniques. However, to date, such arrays remain constrained by wave reciprocity in addition to being confined to their operational frequency; two
Publikováno v:
Key Engineering Materials. 821:414-418
Phononic crystals (PCs) have the ability to have phononic bandgaps dependent on the acoustic properties of its constituent materials (i.e., mass, elasticity). Forming a 1D periodic variation using a viscoelastic material allow the PC to have more wav
Publikováno v:
Soil Dynamics and Earthquake Engineering. 121:262-275
Train-induced ground vibrations can cause major problems in structures that accommodate sensitive apparatus or located in densely populated districts. Wave barriers are used extensively in practice to mitigate the detrimental effects of these vibrati
Publikováno v:
Computer-Aided Civil and Infrastructure Engineering. 35:101-115
In maintenance planning of rail track, it is imperative to assess the potential and frequency of rail defects. Although this problem has been mainly studied in the literature by either dat...
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 2673:281-293
This paper develops a Bayesian framework to explore the impact of different factors and to predict the risk of recurrence of rail defects, based upon datasets collected from a US Class I railroad between 2011 and 2016. To this end, this study constru
Publikováno v:
Transportation Research Part C: Emerging Technologies. 102:153-172
Predicting rail defects is of great importance for safe railway transportation. Using foot-by-foot track geometry and tonnage data, this paper develops a new machine learning based approach to identify the track geometry parameters that contribute mo
Publikováno v:
Scientific Reports
Scientific Reports, Vol 10, Iss 1, Pp 1-14 (2020)
Scientific Reports, Vol 10, Iss 1, Pp 1-14 (2020)
Acoustic phased arrays are capable of steering and focusing a beam of sound via selective coordination of the spatial distribution of phase angles between multiple sound emitters. Constrained by the principle of reciprocity, conventional phased array
Publikováno v:
Volume 1: Acoustics, Vibration, and Phononics.
Acoustic phased arrays are capable of steering and focusing a beam of sound via selective coordination of the spatial distribution of phase angles between multiple sound emitters. Here, we propose a controllable acoustic phased array with space-time
Ground floor reinforced concrete columns are vulnerable to blast loading of close by distance (i.e. less than 3m/kg ¹/³). In this work, a 25-story commercial building was designed in low-seismic and high-seismic regions respectively to find the typ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a6eada50c676f342d4184a8acb69d9d
https://nrc-publications.canada.ca/eng/view/object/?id=18180984-7b20-4e7c-8629-23b1a6f199f0
https://nrc-publications.canada.ca/eng/view/object/?id=18180984-7b20-4e7c-8629-23b1a6f199f0