Explanipedia

Earthquake detection in a simulated lunar regolith using distributed acoustic sensing Open

Amber Zandanel, Kai Gao, Simone Probst, Johan O. A. Robertsson, Carly M. Donahue · 2025

Distributed Acoustic Sensing to Estimate the Permeability Open

Christopher Johnson, Carly M. Donahue · 2025

Optical fiber in a borehole can be interrogated with distributed acoustic sensors (DAS) to capture fracture displacements with the potential to map surrounding fracture networks. We designed a laboratory experiment to test the capability o…

Limited surface deformation, seismicity, and seismic velocity changes observed in Valles Caldera over decadal timescales Open

Nathan Maier, E. Rodríguez, Ronni Grapenthin, A. Newman, Carly M. Donahue , et al. · 2025

Detection of a space capsule entering Earth's atmosphere with distributed acoustic sensing (DAS) Open

C. Carr, Carly M. Donahue, Loïc Viens, Luke Beardslee, E A McGhee , et al. · 2024

On 24 September 2023, the Origins, Spectral Interpretation, Resource Identification, and Security Regolith Explorer (OSIRIS-REx) Sample Return Capsule entered the Earth's atmosphere after successfully collecting samples from an asteroid. T…

Geophysical Observations of the 2023 September 24 OSIRIS-REx Sample Return Capsule Reentry Open

Elizabeth A. Silber, Daniel Bowman, C. Carr, David P. Eisenberg, Brian R. Elbing , et al. · 2024

Sample return capsules (SRCs) entering Earth’s atmosphere at hypervelocity from interplanetary space are a valuable resource for studying meteor phenomena. The 2023 September 24 arrival of the Origins, Spectral Interpretation, Resource Ide…

Autonomous Monitoring of Wellbore Integrity Applying Time-Reverse Nonlinear-Elastic Wave Spectroscopy and Fiber Optic Sensing and Communication Open

Carly M. Donahue, Paul A. Johnson, Ishtiaque Anwar, J. William Carey, Samuel Boyce , et al. · 2024

Nonlinear Acoustic Methods for the Detection and Monitoring of CO2/Brine Leakage Pathways in Wellbore Systems Open

Pierre‐Yves Le Bas, J. William Carey, John Stormont, Mahmoud Reda Taha, Edward Matteo , et al. · 2024

Flaw detection of wellbore systems using TREND Open

Carly M. Donahue, Serafin Garcia Fernandez, Pierre‐Yves Le Bas, John Stormont · 2024

Limited Surface Deformation, Seismicity, and Seismic Velocity Changes Observed in Valles Caldera Over Decadal Timescales Open

Nathan Maier, E. Rodríguez, Ronni Grapenthin, A. V. Newman, Eric O. Lindsey , et al. · 2024

In-process, layer-by-layer non-destructive testing of additive manufactured components using linear and nonlinear vibrational resonance Open

Marcel C. Remillieux, Carly M. Donahue, Marcie A. Stuber Geesey · 2023

Provided is an additive manufacturing system capable of performing in-process, layer-by-layer non-destructive testing, the additive manufacturing system including: a plate for producing a part thereon; a transducer attached to the plate an…

Deep-learning-guided high-resolution subsurface reflectivity imaging with application to ground-penetrating radar data Open

Kai Gao, Carly M. Donahue, Bradley G. Henderson, Ryan Modrak · 2022

SUMMARY Subsurface reflectivity imaging is one of the most important geophysical characterization methods for revealing subsurface structures. In many cases, accurate subsurface reflectivity imaging is challenging because of, for example, …

SREMI: Super-resolution electromagnetic imaging with single-channel ground-penetrating radar Open

Kai Gao, Carly M. Donahue, Bradley G. Henderson, Ryan Modrak · 2022

Straining to Learn Permeability Open

Bryan Euser, Christopher S. Johnson, R. A. Guyer, Esteban Rougier, Carly M. Donahue , et al. · 2022

Characterizing fluid flow in a porous material with permeability is fundamental to energy and hydrological applications, yet direct measurements of permeability are very difficult to conduct in situ. However, attending fluid flow through a…

Damage detection in a laboratory-scale wellbore applying Time Reversal and Nonlinear Elastic Wave Spectroscopy (TR NEWS) Open

Erin R. Dauson, Carly M. Donahue, Scott DeWolf, Liwei Hua, Hai Xiao , et al. · 2021

Distributed Acoustic Sensing Based on Coherent Microwave Photonics Interferometry Open

Liwei Hua, Xuran Zhu, Baokai Cheng, Song Yang, Qi Zhang , et al. · 2021

A microwave photonics method has been developed for measuring distributed acoustic signals. This method uses microwave-modulated low coherence light as a probe to interrogate distributed in-fiber interferometers, which are used to measure …

Distributed Acoustic Sensing Based on Coherent Microwave Photonics Interferometry Open

Liwei Hua, Xuran Zhu, Baokai Cheng, Song Yang, Qi Zhang , et al. · 2021

A microwave-photonics method has been developed for measuring distributed acoustic signals. This method uses microwave-modulated low coherence light as a probe to interrogate distributed in-fiber interferometers, which are used to measure …

Damage Detection in a laboratory-scale wellbore applying Time Reverse Nonlinear Elastic Wave Spectroscopy (TR NEWS) Open

Erin R. Dauson, Carly M. Donahue, Scott DeWolf, Liwei Hua, Hai Xiao , et al. · 2021

Time Reverse Nonlinear Elastic Wave Spectroscopy (TR-NEWS) has been used to focus acoustic energy, and make measurements correlated with damage in a variety of industrial materials. Most studies using TR-NEWS in Earth Science have focused …

Cratering of Soil by Impinging Jets of Gas, with Application to Landing\n Rockets on Planetary Surfaces Open

Philip T. Metzger, Bruce T. Vu, David E. Taylor, M. J. Kromann, Manfred Fuchs , et al. · 2021

Several physical mechanisms are involved in excavating granular materials\nbeneath a vertical jet of gas. These occur, for example, beneath the exhaust\nplume of a rocket landing on the soil of the Moon or Mars. A series of\nexperiments an…

Cratering of Soil by Impinging Jets of Gas, with Application to Landing Rockets on Planetary Surfaces Open

Philip T. Metzger, Bruce T. Vu, David E. Taylor, M. J. Kromann, Manfred Fuchs , et al. · 2021

Several physical mechanisms are involved in excavating granular materials beneath a vertical jet of gas. These occur, for example, beneath the exhaust plume of a rocket landing on the soil of the Moon or Mars. A series of experiments and s…

Monitoring urban hydrological environment monitoring using fiber optical sensing Open

Kai Gao, Lianjie Huang, Carly M. Donahue, Jonathan Ajo‐Franklin · 2020

The goal of this research is to develop an innovative approach to monitoring urban dynamic hydrological environment using optical-fiber-based distributed acoustic sensing (DAS). We propose to employ surface-wave dispersion inversion and co…

Real-Time Immersion of Physical Experiments in Virtual Wave-Physics Domains Open

Theodor S. Becker, Nele Börsing, Thomas Haag, Christoph Bärlocher, Carly M. Donahue , et al. · 2020

We immerse a two-dimensional physical wave-propagation experiment in a virtual (simulated) environment in real time. This enables broadband hybrid wave experimentation in physical media that may be governed by unknown physics, embedded sea…

Cover Picture: Nonlinear Resonant Ultrasound Spectroscopy for Predicting Sensitivity to Initiation in Granular High Explosives (Prop., Explos., Pyrotech. 3/2020) Open

Peter Schulze, Emily Pittman, Sky Sjue, David S. Moore, Trevor Feagin , et al. · 2020

The cover picture is based on the Full Paper Nonlinear Resonant Ultrasound Spectroscopy for Predicting Sensitivity to Initiation in Granular High Explosives by Peter Schulze et al., https://doi.org/10.1002/prep.201900162. The Full Paper ca…

Nonlinear Resonant Ultrasound Spectroscopy for Predicting Sensitivity to Initiation in Granular High Explosives Open

Peter Schulze, Emily Pittman, Sky Sjue, David S. Moore, Trevor Feagin , et al. · 2019

Nonlinear Resonant Ultrasound Spectroscopy (NRUS) is a technique that can measure bulk nonlinear coefficients of the nonlinear elastic modulus for a material. NRUS has been used to identify damage in a variety of granular materials includi…

Investigation of the nonlinearity of transducer acoustic couplants for nonlinear elastic measurements Open

Marcie A. Stuber Geesey, Bettina Aristorenas, Timothy J. Ulrich, Carly M. Donahue · 2019

Nonlinear resonant ultrasound spectroscopy for nondestructive evaluation of thermally aged small pressed pellets Open

Carly M. Donahue, Peter Schulze, David S. Moore · 2019

As the high explosive Pentaerythritol Tetranitrate (PETN) ages, its microstructure changes in the form of microcracks, grain sintering, crystal coarsening, and via other mechanisms, which affects its explosive performance. However, current…

Nonlinear Resonant Ultrasound Spectroscopy for Nondestructive Evaluation of Pentaerythritol Tetranitrate Open

Carly M. Donahue, Peter Schulze, David S. Moore, Timothy J. Ulrich · 2018

be determined that there is no feasible path for deflagration-to-detonation transition (DDT), the scenario space that requires mitigative action is greatly reduced. The strategy to support Weapons Response determinations is to use experime…

Measuring the elastic tensor of a monolithic SiC hollow cylinder with resonant ultrasound spectroscopy Open

Carly M. Donahue, Marcel C. Remillieux, Gyanender Singh, Timothy J. Ulrich, Robert J. Migliori , et al. · 2018

Immersive Wave Propagation Experimentation: Physical Implementation and One-Dimensional Acoustic Results Open

Theodor S. Becker, Dirk‐Jan van Manen, Carly M. Donahue, Christoph Bärlocher, Nele Börsing , et al. · 2018

We present a fundamentally new approach to laboratory acoustic and seismic wave experimentation that enables full immersion of a physical wave propagation experiment within a virtual numerical environment. Using a recent theory of immersiv…

Characterization of interface reflection coefficients using a finite-difference injection technique Open

Nele Börsing, Carly M. Donahue, Dirk‐Jan van Manen, Lasse Amundsen, Johan O. A. Robertsson · 2017

In this paper, a numerical wave field injection technique for characterizing the reflection coefficient of a planar medium interface is proposed. By injecting recorded wave field quantities into a three-dimensional (3D) finite-difference c…

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