Results 181 to 190 of about 4,755 (217)

An All‐At‐Once Solver for Visco‐Acoustic Full Waveform Inversion in the Time‐Domain

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT Full waveform inversion (FWI) is the cutting‐edge seismic imaging technique used to reconstruct subsurface material properties such as wave velocities, mass density, and attenuation from measurements of reflected wavefields. In this article, we present the first implementation of FWI in the visco‐acoustic regime, based on a new time‐domain all‐
Christian Rheinbay, Andreas Rieder
wiley   +1 more source

Optimization of Gradient Pulse Shape Prediction Using Temporal Convolutional Networks

open access: yesMagnetic Resonance in Medicine, EarlyView.
Purpose To improve TCN‐based gradient‐waveform prediction with respect to acquisition efficiency and inference speed, and to evaluate its use for radial imaging. Methods Gradient waveforms were measured using a thin‐slice method on a preclinical MRI system. Separate TCN models were trained for each physical gradient axis to predict both gradient and B0$
Jiří Vitouš   +2 more
wiley   +1 more source

Spherical fuzzy hypergraph in decision making. [PDF]

open access: yesSci Rep
Pramanik T   +5 more
europepmc   +1 more source

Weakly Convex Ridge Regularization for 3D Non‐Cartesian MRI Reconstruction

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose While highly accelerated non‐Cartesian acquisition protocols significantly reduce scan time, they often entail long reconstruction delays for 3D data. Deep learning–based reconstruction methods can alleviate this, but typically rely on complex, highly parametrized architectures.
German Shâma Wache   +3 more
wiley   +1 more source

Women's Career Pathways to Nonprofit Leadership Positions

open access: yesNonprofit Management and Leadership, EarlyView.
ABSTRACT This study examines women's leadership career pathways in nonprofit sport organizations. Drawing on a narrative approach and reflexive thematic analysis of 22 semi‐structured interviews with Finnish women leaders, we identify four career types—Progressive Growth Career, Mission Enthusiast, Externally Catalyzed Career, and Chance‐Driven Growth ...
Marjukka Mikkonen   +1 more
wiley   +1 more source

Geophysical investigation at Sainte‐Marguerite‐sur‐Mer (Normandy, France): From a supposed landfill to a forgotten military network?

open access: yesNear Surface Geophysics, EarlyView.
Abstract This study focuses on characterising a strong and unexpected anomaly observed during an electromagnetic induction (EMI) survey conducted on the chalk cliff plateau at Sainte‐Marguerite‐sur‐Mer, in the Normandy region, France. The site was selected for a long‐term study of chalk cliff coastal erosion that began in 2017 and has been studied for ...
Sarah Thuillier   +3 more
wiley   +1 more source

Caring with forests: Human and more‐than‐human care in forest occupations in Germany

open access: yesPeople and Nature, EarlyView.
Abstract Drawing on ongoing ethnographic and participatory action research within forest occupations in Germany, this paper develops the concept of ‘caring with forests’ to theorise the mutual, multidimensional relationships of care that emerge between humans and more‐than‐human beings in environmental protest settings.
Sebastian Garbe
wiley   +1 more source

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