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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Physics-Guided Data-Driven Seismic Full-Waveform Inversion: Recent Progress on Model Development and Data Sharing
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Stochastic Earth Model Effects on Full Waveform Seismic Moment Tensor Inversions.
Abstract not provided.
Systems and methods for increasing efficiency of ultrasound waveform tomography
Ultrasound tomography imaging methods for imaging a tissue medium with one or more ultrasound transducer arrays comprising a plurality of transducers, wherein said transducers comprise source transducers, receiving transducers. The methods include assigning a phase value or time delay to source transducers, exciting the transducers and calculating a search direction based on data relating to the excited transducers.
Ultrasound waveform tomography with spatial and edge regularization
Synthetic-aperture ultrasound tomography systems and methods using scanning arrays and algorithms configured to simultaneously acquire ultrasound transmission and reflection data, and process the data for improved ultrasound tomography imaging, wherein the tomography imaging comprises total-variation regularization, or a modified total variation regularization, particularly with edge-guided or spatially variant regularization.
A non-intrusive, ultra-wideband, coaxial diagnostic for measurement of waveform directionality
Brief summary describing PhD project. Intended audience is graduate advisor at Texas Tech University and PhD committee members.
A Lookup Table Based Low Resource Usage Waveform Data Compression Block in FPGA
aA lookup table based lossless data compression scheme suitable for FPGA implementation, with very low silicon resource usage, is developed. Different algorithms can be implemented by simply changing the contents of the lookup tables in the functional block while keeping the logic circuits unchanged. It exhibits performance comparable to the zip compression software in Linux distributions. The compression block can fit into almost any existing FPGA used in the online data acquisition systems of high energy physics experiments. The decompression process can be performed in either software or in FPGA firmware, allowing users to process compressed data flexibly.
Supervised vs. unsupervised deep learning full waveform inversion: a case study at CCUS site, San Juan NM
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OpenFWI 2.0: Benchmark datasets for elastic full-waveform inversion
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Ground Loop Correction + Pulser Waveforms
PhD project update for Graduate advisor at Texas Tech University.
Practical Considerations for Optimized Mismatched Filtering of Nonrepeating Waveforms.
Abstract not provided.
EFWI: Multiparameter benchmark datasets for elastic full waveform inversion of geophysical properties
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A Non-Intrusive, Coaxial Diagnostic for Measurement of Waveform Directionality
Qualifier presentation for PhD project.