Results 101 to 110 of about 2,389 (219)

Radio-echo sounding and ice volume estimates of western Nordenskiöld Land glaciers, Svalbard [PDF]

open access: yes, 2013
As part of ongoing work to obtain a reliable estimate of the total ice volume of Svalbard glaciers and their potential contribution to sea-level rise, we present here volume calculations, with detailed error estimates, for ten glaciers on western ...
Lapazaran Izargain, Javier Jesús   +7 more
core   +2 more sources

Radar investigation on civil structures using 3D data reconstruction and transmission tomography [PDF]

open access: yes, 2006
Non-destructive investigation using Ground Penetrating Radar is becoming more popular during the inspection of civil structures. Currently, traditional 2D imaging is also used as a preliminary tool to find possible areas of interest for more detailed ...
Cruz, Paulo J. S.   +4 more
core  

Multiconfiguration GPR measurements for geometric fracture characterization in limestone cliffs (Alps) [PDF]

open access: yes, 2006
Until now, geophysical methods have been rarely used to investigate vertical limestone cliffs, mainly due to the extreme conditions for data acquisition. Nevertheless, these techniques are the only available methods which could provide information on the
Garambois, Stéphane   +3 more
core   +4 more sources

Railway freight transport and logistics: Methods for relief, algorithms for verification and proposals for the adjustment of tunnel inner surfaces [PDF]

open access: yes, 2018
In Europe, the attention to efficiency and safety of international railway freight transport has grown in recent years and this has drawn attention to the importance of verifying the clearance between vehicle and lining, mostly when different and ...
Ferraro, Ricardo   +3 more
core   +1 more source

Folding due to anisotropy in ice, from drill-core-scale cloudy bands to km-scale internal reflection horizons [PDF]

open access: yesThe Cryosphere
Upright folds in ice sheets are observed on the cm scale in cloudy bands in drill cores and on the km scale in radargrams. We address the question of the folding mechanism for these folds by analysing the power spectra of fold trains to obtain the ...
P. D. Bons   +11 more
doaj   +1 more source

Luiz bandeira bridge: Assessment of a historical reinforced concrete (RC) bridge [PDF]

open access: yes, 2013
The Luiz Bandeira Bridge is located along the Portuguese national road EN333-3, breaching the valley of the Vouga River, just northeast of the small village Sejães, in the district of Oliveira de Frades.
Castro, F.   +5 more
core   +1 more source

Radioglaciological studies on Hurd Peninsula glaciers, Livingston Island, Antarctica [PDF]

open access: yes, 2009
We present the results of several radio-echo sounding surveys carried out on Johnsons and Hurd Glaciers, Livingston Island, Antarctica, between the 1999/2000 and 2004/05 austral summer campaigns, which included both radar profiling and common-midpoint ...
Ahlstrom, L.P.   +6 more
core   +2 more sources

Application of Georadar Method to Investigate shallow Artifacts for Al-Maabid Area in Babylon Archaeological City

open access: yesIraqi Geological Journal
Babylon, one of the most influential civilizations in Mesopotamia, significantly contributed to human history with its rich culture, advanced legal systems, and architectural marvels, serving as the capital of the Neo-Babylonian empire.
Hind Al-Assadi, Najah Abd
doaj   +1 more source

Application of Ground Penetrating Radar Supported by Mineralogical-Geochemical Methods for Mapping Unroofed Cave Sediments

open access: yesRemote Sensing, 2018
Ground penetrating radar (GPR) using a special unshielded 50 MHz Rough Terrain Antenna (RTA) in combination with a shielded 250 MHz antenna was used to study the capability of this geophysical method for detecting cave sediments.
Teja Čeru, Matej Dolenec, Andrej Gosar
doaj   +1 more source

Seepage investigations of heterogeneous soils beneath some buildings using geophysical approaches: example from southwestern Nigeria

open access: yesInternational Journal of Geo-Engineering, 2019
Buildings along the flood plain of River Osun, southwest Nigeria, are usually thought of as been a safe haven for residence over the years. But in recent times with vast (increasing) population and growing urbanization, some of the buildings currently ...
Adebayo Olayinka Salako   +2 more
doaj   +1 more source

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