Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Liewei Sha"'
Publikováno v:
Journal of Magnetic Resonance. 162:250-258
The algorithm of Liu and Nguyen [IEEE Microw. Guided Wave Lett. 8 (1) (1998) 18; SIAM J. Sci. Comput. 21 (1) (1999) 283] for nonuniform fast Fourier transform (NUFFT) has been extended to two dimensions to reconstruct images using spiral MRI. The new
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89dbcb779e1d31076f184e7ac0c8db83
https://doi.org/10.1016/s1090-7807(03)00107-1
https://doi.org/10.1016/s1090-7807(03)00107-1
Autor:
Liewei Sha, Loren W. Nolte
Publikováno v:
The Journal of the Acoustical Society of America. 117(4 Pt 1)
The detection performance of sonar systems can be greatly limited by the presence of interference and environmental uncertainty. The classic sonar equation does not take into account these two limiting factors and is inaccurate in predicting sonar de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a04ff20f1b98ee305c67a20647fe2a4
https://pubmed.ncbi.nlm.nih.gov/15898640
https://pubmed.ncbi.nlm.nih.gov/15898640
Autor:
Loren W. Nolte, Liewei Sha
Publikováno v:
The Journal of the Acoustical Society of America. 117(4 Pt 1)
The development of effective passive sonar systems depends upon the ability to accurately predict the performance of sonar detection algorithms in realistic ocean environments. Such environments are typically characterized by a high degree of uncerta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::632b2b59051b78705670199a7830f335
https://pubmed.ncbi.nlm.nih.gov/15898639
https://pubmed.ncbi.nlm.nih.gov/15898639
Publikováno v:
Proceedings IEEE SoutheastCon 2002 (Cat. No.02CH37283).
This paper presents a review of the dielectric properties of normal and malignant breast tissues for radio through microwave frequencies, as well as a brief summary of the experiment methods and the mechanisms that explain the difference in the diele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4355477f28aea1d9c8c12f8d5801b69
https://doi.org/10.1109/secon.2002.995639
https://doi.org/10.1109/secon.2002.995639
Publikováno v:
ISBI
The Markov random field is used to model the breast permittivity cross section as a propagating medium, and incorporate it into the forward electromagnetic (EM) propagation to predict the random field of the EM measurements at a received array of sen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::560846c01825ae278e5d620aa033213f
https://doi.org/10.1109/isbi.2002.1029442
https://doi.org/10.1109/isbi.2002.1029442
Publikováno v:
The Journal of the Acoustical Society of America. 109:2382-2383
An overview of detection, classification and localization of signals in an uncertain ocean environment is presented from a Bayesian perspective. The Bayesian approach allows one to both model and incorporate, in an optimal way, the inherent uncertain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79bd7019c816d2ab624369c71c20b6a2
https://doi.org/10.1121/1.4744398
https://doi.org/10.1121/1.4744398
Publikováno v:
Proceedings IEEE SoutheastCon 2002 (Cat. No.02CH37283); 2002, p457-462, 6p
Publikováno v:
Proceedings IEEE International Symposium on Biomedical Imaging; 2002, p1039-1042, 4p
Autor:
Liewei Sha, Longsheng Hao, Gary W. Caille, Liangying Lei, Zhenge Sun, Renhe Zhang, Fenghua Li, Ji‐Xun Zhou, Nan Sun, Peter H. Rogers
Publikováno v:
The Journal of the Acoustical Society of America. 101:3180-3180
This paper presents a normal mode approach for analyzing signal fluctuation in shallow water with a thermocline which fluctuates due to tides and internal waves. In the Yellow Sea 1996 experiment, variations of thermocline structure and internal wave
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c933ab8a0a069f437b30aea6ce0fdf1a
https://doi.org/10.1121/1.419223
https://doi.org/10.1121/1.419223
Autor:
Liewei Sha, Nolte, Loren W.
Publikováno v:
IEEE Journal of Oceanic Engineering; Apr2006, Vol. 31 Issue 2, p345-355, 11p, 1 Diagram, 1 Chart, 7 Graphs, 1 Map