Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Nasim Moallemi"'
Autor:
Nasim Moallemi, Shahram Shahbazpanahi
Publikováno v:
IEEE Access, Vol 6, Pp 8977-8989 (2018)
Ultrasonic imaging of multi-layer materials with parallel interfaces is a challenging problem in non-destructive testing. In multi-layer materials, since the sound velocity and the propagation path change when sound travels from one layer into anothe
Externí odkaz:
https://doaj.org/article/96e26bf20bcc4d57b26315a2f3e7bc95
Autor:
Shahram Shahbazpanahi, Nasim Moallemi
Publikováno v:
IEEE Access, Vol 6, Pp 8977-8989 (2018)
Ultrasonic imaging of multi-layer materials with parallel interfaces is a challenging problem in non-destructive testing. In multi-layer materials, since the sound velocity and the propagation path change when sound travels from one layer into anothe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4998454e886da83deb4f97f47de31572
https://doi.org/10.1109/access.2018.2801842
https://doi.org/10.1109/access.2018.2801842
Autor:
Nasim Moallemi, Shahram Shahbazpanahi
Publikováno v:
IEEE Transactions on Signal Processing. 63:2464-2475
Imaging multilayer materials is a common challenge in seismology, medical diagnosis, and nondestructive testing. One of the applications of multilayer imaging is ultrasonic immersion test where the material under test and the transducer array are imm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e053287061e04cdee9cac915fd9ebcd2
https://doi.org/10.1109/tsp.2015.2403273
https://doi.org/10.1109/tsp.2015.2403273
Autor:
Shahram Shahbazpanahi, Nasim Moallemi
Publikováno v:
IEEE Transactions on Signal Processing. 62:3863-3873
In array-based immersion ultrasonic non-destructive testing (NDT), an ultrasonic array and a solid test sample are immersed in water for the purpose of imaging and flaw detection inside the test sample. In such a test scenario, the upper surface of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d820c5034b26433e1eea48b01bcf437
https://doi.org/10.1109/tsp.2014.2329276
https://doi.org/10.1109/tsp.2014.2329276
Autor:
Shahram Shahbazpanahi, Nasim Moallemi
Publikováno v:
ACSSC
In this paper, we consider the problem of immersion ultrasonic test when a uniform array of ultrasonic transducer is utilized. Since the sound wave propagates in water and solid with two different velocities, the imaging techniques for homogeneous ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41686e5e7c5656e77bf2e92b1baec50a
https://doi.org/10.1109/acssc.2014.7094726
https://doi.org/10.1109/acssc.2014.7094726
Autor:
Nasim Moallemi, Shahram Shahbazpanahi
Publikováno v:
2014 IEEE International Ultrasonics Symposium.
In a multi-layer medium, interfaces between the layers refract the sound wave into lower layers, thereby playing the role of emitting sources for lower layers. We model the interfaces between the layers of a multi-layer medium as spatially distribute
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c831c050ee326d1062c54dabaa75457f
https://doi.org/10.1109/ultsym.2014.0014
https://doi.org/10.1109/ultsym.2014.0014
Autor:
Shahram Shahbazpanahi, Nasim Moallemi
Publikováno v:
SAM
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3c50446652af989de9d51bcdc2cdf26
https://doi.org/10.1109/sam.2014.6882371
https://doi.org/10.1109/sam.2014.6882371
Publikováno v:
ACSCC
In non-destructive testing (NDT), it is desirable to have as much information as possible about the size, orientation, and shape of a defect. But due to the reflections in numerous dispersive acoustic modes and the mode conversion that occurs at the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14b7c7dbfbab53c2947814e5915d8f51
https://doi.org/10.1109/acssc.2011.6190178
https://doi.org/10.1109/acssc.2011.6190178
Publikováno v:
2010 25th Biennial Symposium on Communications.
Transmit power control is used in cellular radio systems for reducing co-channel interference and increasing the capacity of system. To achieve the desired signal to interference ratio for all users in a cellular radio system, centralized power contr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d29121a8463a478d7e5288e31b5402f2
https://doi.org/10.1109/bsc.2010.5472945
https://doi.org/10.1109/bsc.2010.5472945