Results 151 to 160 of about 3,052 (255)

Autonomy for MRI Field Cameras: Synchronization, Self‐Calibration, and Sequence Detection

Magnetic Resonance in Medicine, Volume 96, Issue 1, Page 485-498, July 2026.
ABSTRACT Purpose This work aims to provide a workflow for operating NMR field probes in MR scanners independently of pulse programming, scanner TTL trigger pulses and dedicated calibration sequences. Methods An independent timing system and limited prior knowledge about relative probe positions enable synchronous field measurement, probe position ...
Oskar Björkqvist, Klaas P. Pruessmann
wiley   +1 more source

SELFIE: Self‐Supervised Learning for Fast Dynamic Golden‐Angle Radial MRI

NMR in Biomedicine, Volume 39, Issue 7, July 2026.
SELFIE enables reference‐free reconstruction for dynamic golden‐angle radial MRI. The self‐supervised training is enabled by leveraging the flexible temporal resolution of golden‐angle sampling to create self‐references and temporal sparsity. Evaluated on accelerated DCE‐MRI in patients with gynecological cancer and motion‐resolved free‐breathing ...
Melanie Schellenberg, Anthony Mekhanik, Victor Murray, Pamela Argiriadi, Yulia Lakhman, Galina Levin, Oguz Akin, Ricardo Otazo   +7 more
wiley   +1 more source

Synergistic augmentation of BDS PPP-B2b: integrating LEO constellations and wide-lane ambiguity resolution for instantaneous convergence. [PDF]

Sci Rep
Zhao Q, Pan S, Gao W, Tao X, Huang H, Zhang M, Wang Q.   +6 more
europepmc   +1 more source

Approximate Ricci‐Flat Metrics for Calabi–Yau Manifolds

Fortschritte der Physik, Volume 74, Issue 7, July 2026.
ABSTRACT We outline a method to determine analytic Kähler potentials with associated approximately Ricci‐flat Kähler metrics on Calabi–Yau manifolds. Key ingredients are numerically calculating Ricci‐flat Kähler potentials via machine learning techniques and fitting the numerical results to Donaldson's ansatz.
Seung‐Joo Lee, Andre Lukas
wiley   +1 more source

User-Side Long-Baseline Undifferenced Network RTK Positioning Under Geomagnetic Storm Conditions Using a Power Spectral Density-Constrained Ionospheric Delay Model. [PDF]

Sensors (Basel)
Wang Y, Zhu H, Xu Q, Li J, Song C, Li B.
europepmc   +1 more source

Mapping the Conformational Landscape of DNA Minicircles Through Atomic Force Microscopy and Shape Space Analysis

Small, Volume 22, Issue 37, 2 July 2026.
An automated framework is presented for quantifying DNA conformational variability from atomic force microscopy (AFM) images. DNA backbones are reduced to spline representations and analyzed using cyclic Procrustes analysis to measure shape similarity across ensembles.
Laura Wiggins, Tobias A. Firth, Max C. Gamill, Thomas E. Catley, Agnes Noy, Jonathan M. Fogg, Lynn Zechiedrich, Alice L. B. Pyne   +7 more
wiley   +1 more source

Attitude Tracking Algorithm Using GNSS Measurements from Short Baselines. [PDF]

Sensors (Basel)
Kapralov F, Kozlov A.
europepmc   +1 more source

Undifferenced Integer Ambiguity Resolution in GNSS Network Solutions: Benefits to Satellite Orbits, ERP, Geocenter, and Station Coordinates

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.
Abstract Integer ambiguity resolution (IAR) is critical in high‐precision Global Navigation Satellite Systems (GNSS) data processing. While the legacy double‐differenced (DD) IAR is widely adopted by most analysis centers (ACs) of the International GNSS Service, undifferenced (UD) IAR is gaining popularity for global network solutions.
L. Tang, J. Wang, L. Nie, B. Cui, H. Zhu, M. Ge, H. Schuh   +6 more
wiley   +1 more source

Scale-aware feature modeling and dynamic sampling enable arbitrary-scale image super-resolution. [PDF]

Sci Rep
Tang Q, Zhou Y, Liu X, Ma L, Zheng H, He Y, Zhang T.   +6 more
europepmc   +1 more source

MIDAS: a methodological framework for high‐speed high‐energy diffraction microscopy data reduction. Part I: methodology

Acta Crystallographica Section A, Volume 82, Issue 4, Page 242-255, July 2026.
This paper details the complete methodological framework implemented in the MIDAS software for processing high‐energy diffraction microscopy (HEDM) data. We describe the specific algorithms, coordinate systems and physical models used for both far‐field and near‐field HEDM analysis.
Hemant Sharma, Jun-Sang Park, Peter Kenesei   +2 more
wiley   +1 more source