Results 91 to 100 of about 208,745 (278)
The Journal of Physiology, EarlyView.Abstract figure legend Integrated multimodal platform for panoramic cardiac mapping in isolated heart experiments. On the left, an image of the experimental setup during data acquisition showing a Langendorff‐perfused rabbit heart surrounded by three optical cameras (CAM A, B and C) positioned 120° apart, each coupled with high‐power LEDs for panoramic
Jimena Siles +8 more
wiley +1 more source
Robust Inversion Methods for Aerosol Spectroscopy
, 2016 The Fast Aerosol Spectrometer (FASP) is a device for spectral aerosol measurements. Its purpose is to safely monitor the atmosphere inside a reactor containment. First we describe the FASP and explain its basic physical laws.
Alldredge, Graham, Kyrion, Tobias
core +1 more source
Tomographic laser absorption spectroscopy using Tikhonov regularization [PDF]
Applied Optics, 2014 The application of tunable diode laser absorption spectroscopy (TDLAS) to flames with non-homogeneous temperature and concentration fields is an area where only few studies exist. Experimental work explores the performance of tomographic reconstructions of concentration and temperature profiles from wavelength-modulated TDLAS measurements within the ...
Guha, Avishek, Schoegl, Ingmar
openaire +3 more sources
The Journal of Physiology, EarlyView.Abstract figure legend This study examines the relationships between activation and repolarization times in epicardial reconstructed unipolar electrograms derived from ECG‐imaging in patients with normal and delayed ventricular activation. In patients with a narrow QRS‐complex, ECG‐imaging reveals significant variability in the activation ...
Karin C. Smits +9 more
wiley +1 more source
Magnetic Resonance in Medicine, Volume 95, Issue 4, Page 2092-2105, April 2026.ABSTRACT Purpose To evaluate quantitative susceptibility mapping (QSM) beyond the brain through realistic simulations and to explore preliminary evidence that may be indicative of hypoxia in skull base chordomas (SBC). Methods Each step of the QSM pipeline was optimized within an in silico framework consisting of (i) phase unwrapping, (ii) background ...
P. Fenech +8 more
wiley +1 more source
Denoising Multi‐Color QR Codes and Stiefel‐Valued Data by Relaxed Regularizations
PAMM, Volume 26, Issue 1, March 2026.ABSTRACT The handling of manifold‐valued data, for instance, plays a central role in color restoration tasks relying on circle‐ or sphere‐valued color models, in the study of rotational or directional information related to the special orthogonal group, and in Gaussian image processing, where the pixel statistics are interpreted as values on the ...
Robert Beinert, Jonas Bresch
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Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.Abstract Chlorofluorocarbons (CFCs) have played a major role in the depletion of stratospheric ozone. Understanding historical trends in emissions and atmospheric concentrations is crucial for quantifying their impact. The first measurements of atmospheric CFCs were performed in‐situ by Lovelock in 1970.
Jamal Makkor +7 more
wiley +1 more source
Scalable spokes pTx pulses for 2D turbo‐spin‐echo imaging at 7 T
Magnetic Resonance in Medicine, Volume 95, Issue 2, Page 740-755, February 2026.Abstract Purpose Turbo spin echo (TSE) is important clinically. Unfortunately, 7 T TSE suffers from B1+‐induced signal dropouts. Magnitude‐based parallel transmit (pTx) pulse design algorithms cannot enforce phase patterns complying with the Carr‐Purcell‐Meiboom‐Gill conditions (90° phase shift between excitation and refocusing).
Minghao Zhang, Christopher T. Rodgers
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Tikhonov regularization of optimal control problems governed by semi-linear partial differential equations [PDF]
, 2017 In this article, we consider the Tikhonov regularization of an optimal control problem of semilinear partial differential equations with box constraints on the control.
Frank Porner, D. Wachsmuth
semanticscholar +1 more source
Wasserstein Diffusion Tikhonov Regularization
, 2019 We propose regularization strategies for learning discriminative models that are robust to in-class variations of the input data. We use the Wasserstein-2 geometry to capture semantically meaningful neighborhoods in the space of images, and define a corresponding input-dependent additive noise data augmentation model.
Lin, Alex Tong +3 more
openaire +3 more sources