Results 31 to 40 of about 46,695 (300)

Anisotropic Mesh Adaptation for Image Representation [PDF]

, 2016
Triangular meshes have gained much interest in image representation and have been widely used in image processing. This paper introduces a framework of anisotropic mesh adaptation (AMA) methods to image representation and proposes a GPRAMA method that is
Li, Xianping
core   +2 more sources

Characterization of a Pre-Trajan wall by integrated geophysical methods [PDF]

, 2015
The purpose of this study was to characterize a pre-Trajan mosaic-decorated wall structure located beneath the Cryptoporticus of the 'Baths of Trajan' complex in Rome. The surveyed wall is 15m long, 0.9m wide and 3 to 5m high.
Annan, Asakawa, Cardarelli, Cardarelli, Cardarelli, Cardarelli, Cataldo, Conyers, Daniels, Goodman, Mavko, Mol, Neubauer, Orlando, Orlando, Oswin, Piro, Piro, Polymenakos, Pérez-Gracia, Sass, Tsourlos, Červený   +22 more
core   +1 more source

A denoising method based on cyclegan with attention mechanisms for improving the hidden distress features of pavement

Scientific Reports, 2023
Ground Penetrating Radar (GPR) is one of the most used devices for road structural damages detection. However, due to the different roadbed conditions and various disturbances in the nearby environment during detection, there are great difficulties in ...
Lei Liu, Ligang Cao, Congde Lu, Xingtao Yang, Tongbiao Wei, Xiaocui Li, Hengxin Jiang, Lin Yang   +7 more
doaj   +1 more source

Prediction of Atomization Energy Using Graph Kernel and Active Learning [PDF]

, 2019
Data-driven prediction of molecular properties presents unique challenges to the design of machine learning methods concerning data structure/dimensionality, symmetry adaption, and confidence management.
de Jong, Wibe A., Tang, Yu-Hang
core   +2 more sources

Ground penetrating radar applied to subsurface culverts

Geo-spatial Information Science
The failures of culverts can result in water and soil loss in the surrounding subsurface, leading to collapses. In densely constructed urban areas, buried culverts are inaccessible and invisible, making Ground Penetrating Radar (GPR) inspection a widely ...
Tess Luo, Song Zhu, Yiliminuer Yikeremu, Jiasong Zhu, John van Genderen   +4 more
doaj   +1 more source

Modeling GPR Wave Propagation in Complex Underground Structures Using Conformal ADI-FDTD Algorithm

Applied Sciences, 2022
Ground Penetrating Radar (GPR) is a shallow geophysical method for detecting and locating subsurface targets. The GPR image echo characteristics of complex underground structures can be obtained by carrying out GPR forward modeling research.
Yinping Li, Niannian Wang, Jianwei Lei, Fuming Wang, Ce Li   +4 more
doaj   +1 more source

Influence of grain size, shape and compaction on georadar waves: example of an Aeolian dune

, 2012
Many Ground Penetrating Radar (GPR) profiles acquired in dry aeolian environment have shown good reflectivity inside present-day dunes. We show that the origin of this reflectivity is related to changes in grain size distribution, packing and/or grain ...
Adetunji, Annan, Asami, Atkins, Bagnold, Bano, Bano, Bano, Barndorf-Nielsen, Bayard, Boyle, Bristow, Bristow, Bristow, Bruggeman, Costas, Davis, Greaves, Gómez-Ortiz, Hanai, Harari, Hunter, Jackson, Jean-Remi Dujardin, Jiao, Jol, Julien Guillemoteau, Koltermann, Lancaster, Lehmann, Maksim Bano, Marion, Maxwell-Garnett, McGeary, Mendelson, Mountney, Neal, Otto, Robinson, Robinson, Sen, Shenk, Sihvola, Stratton, Thomas, Von Hippel, Wang, Watson, Widess, Zeng   +49 more
core   +5 more sources

Statistical Gravitational Waveform Models: What to Simulate Next?

, 2017
Models of gravitational waveforms play a critical role in detecting and characterizing the gravitational waves (GWs) from compact binary coalescences. Waveforms from numerical relativity (NR), while highly accurate, are too computationally expensive to ...
Doctor, Zoheyr, Farr, Ben, Holz, Daniel E., Pürrer, Michael   +3 more
core   +1 more source

Evaluating the Properties of Railway Ballast Using Spectral Analysis of Ground Penetrating Radar Signal Based on Optimized Variational Mode Decomposition

Advances in Civil Engineering, 2022
Ground penetrating radar (GPR) has been widely applied in the assessment of railway ballast conditions (fouling, moisture) by using the spectrum of the tested GPR signal. However, the drawbacks of the low time-frequency resolution and mode mixing prevent
Wael Zatar, Xia Hua, Gang Chen, Hai Nguyen, Hien Nghiem   +4 more
doaj   +1 more source

GAN-Based Inversion of Crosshole GPR Data to Characterize Subsurface Structures

Remote Sensing, 2023
The crosshole ground-penetrating radar (GPR) technique is widely used to characterize subsurface structures, yet the interpretation of crosshole GPR data involves solving non-linear and ill-posed inverse problems.
Donghao Zhang, Zhengzheng Wang, Hui Qin, Tiesuo Geng, Shengshan Pan   +4 more
doaj   +1 more source