Results 11 to 20 of about 227 (164)

Feasibility of Using Shear Wave Ultrasonic Probes as Pump-Wave Sources in Concrete Microcrack Detection and Monitoring by Nonlinear Ultrasonic Coda Wave Interferometry [PDF]

open access: yesSensors, 2022
This paper represents a first attempt to study the feasibility of using shear wave (SW) ultrasonic probes as pump-wave sources in concrete microcrack detection and monitoring by Nonlinear Ultrasonic Coda Wave Interferometry (NCWI). The premise behind our
Belfor A. Galaz Donoso   +2 more
doaj   +2 more sources

Comparative Study of Three-Dimensional Stress and Crack Imaging in Concrete by Application of Inverse Algorithms to Coda Wave Measurements [PDF]

open access: yesSensors, 2020
The intrinsic heterogeneity property of concrete causes strong multiple scatterings during wave propagation, forming coda wave that follows very complex trajectories.
Hanwan Jiang   +3 more
doaj   +2 more sources

Distant Storms Can Affect Seismic Noise Crustal Monitoring

open access: yesGeophysical Research Letters
Using seismic noise interferometry to monitor the Earth's interior relies on continuous seismic wavefields produced by stable, invariant sources. In numerous applications, this condition is relaxed, arguing that secondary scattering effects render the ...
Jinwu Li   +4 more
doaj   +2 more sources

Evaluation of ultrasonic signals collected from laboratory concrete specimens: Preprocessing and analysis with coda wave interferometryThe data used are publicly available: Diewald, F. et al.: Data for: Impact of External Mechanical Loads on Coda Waves in Concrete [Data set]. Zenodo, (2025). [PDF]

open access: yesMethodsX
Efficient maintenance of infrastructure relies on monitoring and assessment of its condition. New technologies and methods thereby enable a deeper understanding of the materials used and of the structures built.
Eva Jägle   +6 more
doaj   +2 more sources

Correction: Niederleithinger, E., et al. Processing Ultrasonic Data by Coda Wave Interferometry to Monitor Load Tests of Concrete Beams. Sensors 2018, 18, 1971 [PDF]

open access: yesSensors, 2019
The authors wish to make the following corrections to this paper [...]
Ernst Niederleithinger   +3 more
doaj   +2 more sources

Impact of temperature and relative humidity variations on coda waves in concrete [PDF]

open access: yesScientific Reports
The microstructure of concrete can be affected by many factors, from non-destructive environmental factors through to destructive damage induced by transient stresses.
Fabian Diewald   +3 more
doaj   +2 more sources

Earthquake‐volcano interaction imaged by coda wave interferometry [PDF]

open access: yesGeophysical Research Letters, 2012
Large earthquakes are often assumed to influence the eruptive activity of volcanoes. A major challenge to better understand the causal relationship between these phenomena is to detect and image, in detail, all induced changes, including subtle, non‐eruptive responses.
Battaglia, Jean   +2 more
openaire   +4 more sources

Monitoring variations of crustal media after the MS4.6 Ruichang-Yangxin earthquake by coda wave interferometry

open access: yes地震科学进展, 2022
Based on the event waveform data and its observation report of the 2011 Ruichang-Yangxin MS4.6 earthquake sequence processed by the double-difference method, waveform cross-correlation and coda wave interferometry, two groups of repeating earthquakes (cc≥
Yufan Guo   +5 more
doaj   +1 more source

Time-Lapse Cross-Well Monitoring of CO2 Sequestration Using Coda Wave Interferometry

open access: yesRemote Sensing, 2022
In this study, we explored the capability of coda wave interferometry (CWI) for monitoring CO2 storage by estimating the seismic velocity changes caused by CO2 injection. Given that the CWI method is highly efficient, the primary aim of this study was to
Zhuo Xu   +6 more
doaj   +1 more source

Applications of Stretching Technique and Time Window Effects on Ultrasonic Velocity Monitoring in Concrete

open access: yesApplied Sciences, 2022
Coda wave interferometry (CWI) has been used to measure the relative wave-velocity change (dV/V) caused by small changes in materials. This study uses the stretching processing technique which has been used for CWI analysis to investigate velocity ...
Bibo Zhong, Jinying Zhu
doaj   +1 more source

Home - About - Disclaimer - Privacy