Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Pengcheng Shangguan"'
Publikováno v:
NDT & E International. 73:1-7
In this paper, regularized deconvolution is utilized to analyze GPR signal collected from thin asphalt pavement overlays of various mixtures and thicknesses on a test site. By applying regularized deconvolution and the L-curve method, the overlapped
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9f0f95f2f839ea756ab4d89c0a16744
https://doi.org/10.1016/j.ndteint.2015.03.001
https://doi.org/10.1016/j.ndteint.2015.03.001
Autor:
Imad L. Al-Qadi, Pengcheng Shangguan
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 53:1538-1548
This paper demonstrates that the finite-difference time-domain (FDTD) method can be used to accurately simulate ground-penetrating radar (GPR) wave and its interaction with pavement having different densities and moisture conditions. The FDTD simulat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6128171ce6304d06e63aa5d577ae82ef
https://doi.org/10.1109/tgrs.2014.2344858
https://doi.org/10.1109/tgrs.2014.2344858
Publikováno v:
International Journal of Pavement Engineering. 17:189-200
Ground-penetrating radar (GPR) is a promising non-destructive technique to be applied on monitoring the density change during asphalt pavement compaction. The utmost challenge of this application is the unknown effect of surface moisture, sprayed by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f3750b68b9989289d4dd2f316da936a
https://doi.org/10.1080/10298436.2014.973027
https://doi.org/10.1080/10298436.2014.973027
Autor:
Imad L. Al-Qadi, Pengcheng Shangguan
Publikováno v:
Construction and Building Materials. 69:10-17
This paper presents a new data processing algorithm to interpret ground penetrating radar (GPR) data for quantification of railroad ballast fouling conditions. The algorithm is based on the observation that different fouling levels generate different
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::635de00e281b7eeffcace4a5c6593834
https://doi.org/10.1016/j.conbuildmat.2014.06.060
https://doi.org/10.1016/j.conbuildmat.2014.06.060
Publikováno v:
Journal of Applied Geophysics. 107:8-15
This paper presents the application of artificial neural network (ANN) based pattern recognition to extract the density information of asphalt pavement from simulated ground penetrating radar (GPR) signals. This study is part of research efforts into
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8c34dadfdd87bdc36627a9c293f7255
https://doi.org/10.1016/j.jappgeo.2014.05.001
https://doi.org/10.1016/j.jappgeo.2014.05.001
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 2347:79-87
This paper demonstrates that ground-penetrating radar (GPR) is an effective tool for quality assurance and quality control during flexible pavement compaction and after construction. Density is one of the most important properties of asphalt concrete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f40320376ea002608ab642ad4e770413
https://doi.org/10.3141/2347-09
https://doi.org/10.3141/2347-09
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 2304:133-141
A study that validated the field performance of ground-penetrating radar (GPR) as a nondestructive tool to predict in situ asphalt mixture density is presented. New overlays using six types of asphalt mixtures were placed at Illinois Route 72 (IL-72)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27d9e336adf2c173ca162d3eb4ccac85
https://doi.org/10.3141/2304-15
https://doi.org/10.3141/2304-15
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 2289:95-102
Ballast fouling is detrimental to railroad track functions. Ground-penetrating radar (GPR), a nondestructive testing tool, has been used to assess ballast-fouling conditions. However, processing the extensive amount of data to quantify ballast condit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::897172f4c69ea95a66e253e28bf66058
https://doi.org/10.3141/2289-13
https://doi.org/10.3141/2289-13
Publikováno v:
International Conference on Transportation Engineering 2009.
Based on the situation of the present heavy debt burden of toll highway in China, the factors of debt risk formation were analyzed and the warning indexes including debt ratio, debt service ratio, debt income ratio, debt repayment ratio, personnel co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::caabbc7af81cf37ade8a4a0c6a702c6a
https://doi.org/10.1061/41039(345)196
https://doi.org/10.1061/41039(345)196
Publikováno v:
International Conference on Transportation Engineering 2009.
Mass Rapid Transit (MRT) system's development has a far-reaching impact on configuring urban economic resources as well as optimizing land-use layout. Yet in traditional decision making process, mass impact factors might cause subjective-influence. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47b0b7b2dd564617cc786a123c19b88b
https://doi.org/10.1061/41039(345)202
https://doi.org/10.1061/41039(345)202