Results 1 to 10 of about 9,301 (100)
Optical appearance of Einstein-Æther black hole surrounded by thin disk
In Einstein-Æther theory, the Lorentz symmetry is locally broken in the high-energy regime due to the presence of the Æther field. This shall leave significant imprint on astronomical observation.
Hui-Min Wang, Zi-Chao Lin, Shao-Wen Wei
doaj +1 more source
Holographic Einstein ring of a charged AdS black hole
Taking into account that the real quantum materials are engineered generically at a finite chemical potential, we investigate the Einstein ring structure for the lensed response of the complex scalar field as a probe wave on the charged AdS black hole in
Yuxuan Liu +4 more
doaj +1 more source
Ordinal classification (OC) is a sub-discipline of multi-class classification (i.e., including at least three classes), in which the classes constitute an ordinal structure.
Peter Bellmann +3 more
doaj +1 more source
In medical imaging, deep learning models serve as invaluable tools for expediting diagnoses and aiding specialized medical professionals in making clinical decisions.
Daniel Schaudt +6 more
doaj +1 more source
Evolving Morphology of Resolved Stellar Einstein Rings
We consider strong gravitational lensing by nearby stars. Using our wave-optical treatment of lensing phenomena, we study Einstein rings that may form around nearby stellar lenses.
Slava G. Turyshev, Viktor T. Toth
doaj +1 more source
Can Einstein (rings) surf Gravitational Waves?
How does the appearance of a strongly lensed system change if a gravitational wave is produced by the lens? In this work we address this question by considering a supermassive black hole binary at the center of the lens emitting gravitational waves ...
Leonardo Giani +2 more
doaj +1 more source
Observation of an Alice ring in a Bose–Einstein condensate
Monopoles and vortices are fundamental topological excitations that appear in physical systems spanning enormous scales of size and energy, from the vastness of the early universe to tiny laboratory droplets of nematic liquid crystals and ultracold gases.
Alina Blinova +5 more
doaj +1 more source
Two-Stream Attention Network for Pain Recognition from Video Sequences
Several approaches have been proposed for the analysis of pain-related facial expressions. These approaches range from common classification architectures based on a set of carefully designed handcrafted features, to deep neural networks characterised by
Patrick Thiam +2 more
doaj +1 more source
Exploring Deep Physiological Models for Nociceptive Pain Recognition
Standard feature engineering involves manually designing measurable descriptors based on some expert knowledge in the domain of application, followed by the selection of the best performing set of designed features for the subsequent optimisation of an ...
Patrick Thiam +3 more
doaj +1 more source
Holographic study on Einstein ring for a charged black hole in conformal gravity
Under the help of AdS/CFT correspondence, the Einstein ring of a charged black hole in conformal gravity has been studied. As an alternative to standard Einstein’s theory, the conformal gravity is both renormalizable and unitary.
Xin-Yun Hu +3 more
doaj +1 more source

