Results 31 to 40 of about 25,932 (218)

GPR Imaging for Deeply Buried Objects: A Comparative Study Based on Compositing of Scanning Frequencies and a Chirp Excitation Function

Geosciences, 2019
Compositing of ground penetrating radar (GPR) scans of differing frequencies have been found to produce cleaner images at depth using the Gaussian mixture model (GMM) feature of the expectation-maximization (EM) algorithm.
Roger Tilley, Hamid R. Sadjadpour, Farid Dowla   +2 more
doaj   +1 more source

Application of GPR Underground Pipeline Detection Technology in Urban Complex Geological Environments

Geofluids, 2022
In the process of the continuous construction of underground pipelines, underground pipe network systems have become increasingly complex, which puts forward higher requirements for normal operation and maintenance.
Xiaoqiang Liang, Da Hu, Yongsuo Li, Yunyi Zhang, Xian Yang   +4 more
doaj   +1 more source

Numerical study of electromagnetic wave propagation characteristics in collapsed building for rescue radar applications

ETRI Journal, 2018
Since the Gyeongju earthquakes in 2016, there have been increased research interests in the areas of seismic design, building collapse, and rescue radar applications in Korea. Ground penetrating radar (GPR) is a nondestructive electromagnetic method that
Kyeol Kwon, Dong‐Kyoo Kim, Youngwoo Choi, Jeahoon Cho, Kyung‐Young Jung   +4 more
doaj   +1 more source

Analysis of Ground Penetrating Radar Wave Field Characteristics of Dam Face Disengaging Repaired by Polymer Grouting [PDF]

Zhengzhou Daxue xuebao. Gongxue ban
In view of the effect of polymer grouting in repairing the dam face disengaging, the ground penetrating radar wave field of the dam face disengaging was studied.
FANG Hongyuan, DONG Zhifeng, XUE Binghan, LEI Jianwei   +3 more
doaj   +1 more source

Subsurface void detection under the road surface using ground penetrating radar (GPR), a case study in the Bangkok metropolitan area, Thailand

International Journal of Geo-Engineering, 2016
BackgroundThere have been several recent reports of collapsed roads at the various locations throughout the Bangkok metropolitan area. Most of the problems are caused by improper construction of utility networks and poor rehabilitation work.
T. Thitimakorn, Natamon Kampananon, Napassapong Jongjaiwanichkit, S. Kupongsak   +3 more
semanticscholar   +1 more source

A Critical Review and Bibliometric Analysis on Applications of Ground Penetrating Radar in Science Based on Web of Science Database

Eng, 2023
Ground-penetrating radar (GPR) is an established technology with a wide range of applications for civil engineering, geological research, archaeological studies, and hydrological practices.
Nehal Elshaboury, Eslam Mohammed Abdelkader, Abobakr Al-Sakkaf, Tarek Zayed   +3 more
doaj   +1 more source

Poseidon's Sanctuary at Samikon—The Discovery of an Ancient Temple Through an Integrated Geophysical and Geoarchaeological Survey Approach for Lagoonal and Swampy Environments

Archaeological Prospection, EarlyView.
ABSTRACT Below the classical fortress of Samikon at the coast of the western Peloponnese, ancient writer Strabo mentioned a sanctuary of Poseidon which served as the centre of the religious association of the Triphylian cities. In this paper, we describe the discovery and investigation of a building structure by means of geophysical and ...
Dennis Wilken, Birgitta Eder, Sarah Bäumler, Elena Appel, Peter Fischer, Tina Georg, Federica Iannone, Lena Slabon, Timo Willershäuser, Erofili‐Iris Kolia, Andreas Vött   +10 more
wiley   +1 more source

Leveraging Big Multitemporal Multisource Satellite Data and Artificial Intelligence for the Detection of Complex and Invisible Features: The Case of Extensive Irrigation Mapping

Archaeological Prospection, EarlyView.
ABSTRACT The detection of buried or obscured archaeological features remains a central challenge in landscape archaeology, particularly in the irrigated floodplains of Mesopotamia where levees and canals formed the basis of complex agrarian systems. This study presents a deep learning–based approach for the large‐scale, automated detection of ancient ...
Nazarij Buławka, Hector A. Orengo, Felipe Lumbreras Ruiz, Iban Berganzo‐Besga, Ekta Gupta   +4 more
wiley   +1 more source

Wide-Angle Beam-Scanning Antenna Array for Extending the Lateral Detection Range of GPR

Mathematics
This study presents a novel beam-scanning ground-penetrating radar (BS-GPR) system based on a wide-angle beam-scanning antenna array, aimed at extending the lateral detection range and improving the imaging fidelity without increasing the size of the ...
Qifei Zhang, Zirui Zheng, Jiahui Wu, Yongqing Wang, Linyan Guo   +4 more
doaj   +1 more source

Technology Transfer to Underwater Archaeology: The LAHKE Project at the Submerged Neolithic Site of La Marmotta

Archaeological Prospection, EarlyView.
ABSTRACT This document is a report on the field application of non‐invasive geophysical and robotic prospecting methods at the submerged Neolithic site of La Marmotta (Lake Bracciano, Italy), within the LAHKE (LAke Heritage Knowledge and Exploration) project; the study focuses on the practical validation, adaptation and transfer of existing ...
dell' Erba Ramiro, Cupertino Giacomo, Cipollini Angelo, Luciano Blasi, Quattrucci Luca   +4 more
wiley   +1 more source