Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Que, Pei Wen"'
Publikováno v:
In NDT and E International 2009 42(5):430-434
Publikováno v:
In NDT and E International 2008 41(6):467-476
Autor:
Que Pei-wen, Song Shoupeng
Publikováno v:
Russian Journal of Nondestructive Testing. 43:270-280
A fractal-dimension-based signal-processing technique has been extensively applied to various fields, but the use of the method to characterize discrete time-domain ultrasonic signals reflecting defects and any other structural-material inhomogeneiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84f04a4adcd8af7f97208ee198387a7a
https://doi.org/10.1134/s1061830907040080
https://doi.org/10.1134/s1061830907040080
Matching-pursuit-based adaptive wavelet-packet atomic decomposition applied in ultrasonic inspection
Publikováno v:
Russian Journal of Nondestructive Testing. 43:62-68
A novel method of time-frequency analysis, wavelet-packet atomic decomposition based on the matching-pursuit (MP) algorithm, is proposed for improvement of ultrasonic flaw detection during ultrasonic NDT. The MP algorithm is used to decompose a nonli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f5fbb3eb856a001874dbdc60606f98a
https://doi.org/10.1134/s1061830907010093
https://doi.org/10.1134/s1061830907010093
Publikováno v:
Russian Journal of Nondestructive Testing. 42:692-699
During detection of the defects in the inner wall of a petroleum pipeline via an ultrasonic nondestructive evaluation method, the defect echo and the inner-wall echo often overlap. It is difficult to identify the arriving time of the defect echo. Whe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d673f7d4eb925824982357c3922eed05
https://doi.org/10.1134/s1061830906100081
https://doi.org/10.1134/s1061830906100081
Autor:
Que Pei-wen, Chen Tianlu
Publikováno v:
Journal of Systems Engineering and Electronics. 17:279-283
Evidence theory is widely used in the field of target recognition. The invalidation problem of this theory when dealing with highly conflict evidences is a research hotspot. Several alternatives of the combination rule are analyzed and compared. A ne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d693575c0d7f1fa9e35256d0f4ba9937
https://doi.org/10.1016/s1004-4132(06)60048-0
https://doi.org/10.1016/s1004-4132(06)60048-0
Publikováno v:
NDT & E International. 39:61-66
The magnetic flux leakage (MFL) method is currently the most commonly used pipeline inspection technique. In this paper, 3D FEM is used to analyze the MFL signals, a generalized potential formulation to the magnetostatic field MFL problem is discusse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57ed7d87ac4eda1dda6796345adbfc6e
https://doi.org/10.1016/j.ndteint.2005.06.006
https://doi.org/10.1016/j.ndteint.2005.06.006