Results 121 to 130 of about 5,796,492 (306)

Correction to: Artificial Intelligence Techniques for Uncovering Resolved Planetary Nebula Candidates from Wide-field VPHAS+ Survey Data [PDF]

This is a correction to: Ruiqi Sun, Yushan Li, Quentin Parker, Jiaxin Li, Xu Li, Liang Cao, Peng Jia, Artificial Intelligence Techniques for Uncovering Resolved Planetary Nebula Candidates from Wide-field VPHAS+ Survey Data, Monthly Notices of the Royal ...
Sun, Ruiqi, Li, Xu, Li, Jiaxin, Jia, Peng, Parker, Quentin, Cao, Liang, Li, Yushan   +6 more
core   +1 more source

Nonlinear Quantum Effects Drive Grotthuss Proton Conduction in Structured Electrolytes Based on Deep Eutectic Solvents

Advanced Science, EarlyView.
We demonstrate that the inverse relationship between viscosity and conductivity in structured electrolytes can be circumvented by leveraging their hydrogen bonding networks for Grotthuss proton transport. Using a mixture of imidazole and levulinic acid, we show that the existence of extended hydrogen‐bonded chains that can rapidly reorient result in ...
Benworth B. Hansen, Michael S. Chen, Giselle de A. L. e Souza, Kaylie Glynn, Alan Robledo, Emilia Pelegano‐Titmuss, Katherine Hightower, Miguel Muñoz, Rathiesh Pandian, Clemens Burda, Aikaterini Sanida, Mark Dadmun, Burcu E. Gurkan, Steve G. Greenbaum, Mark E. Tuckerman, Joshua R. Sangoro   +15 more
wiley   +1 more source

Fringe Detection in the Lunar Orbit VLBI Experiment: The Initial Clock Search

The Astronomical Journal
We present the design and implementation of a fringe detection pipeline for the Lunar Orbit VLBI Experiment (LOVEX) on board China’s Queqiao-2 cislunar relay satellite. To address the challenge posed by limited space–ground time synchronization accuracy,
Lei Liu, Fengxian Tong, Juan Zhang, Weimin Zheng   +3 more
doaj   +1 more source

Recursive Anchoring Techniques in Astronomical Data Analysis

Journal of Research in Science and Engineering
The conventional approach to astronomical research assumes that large - scale observational data is necessary to define cosmic structures. This paper proposes a recursive anchoring method where a fraction of the dataset, when correctly defined within a recursive framework, can reconstruct the same “center of existence” as a full dataset.
openaire   +1 more source

Generative AI‐Enabled Discovery and Experimental Demonstration of Ultra‐Broadband Epsilon‐Near‐Zero Perfect Absorbers

Advanced Science, EarlyView.
Researchers developed and applied a generative artificial intelligence (AI) model to optimize epsilon‐near‐zero thin film stacks for ultra‐broadband perfect absorption of light. The fabricated AI‐designed absorber, with a total thickness of only 160 nm, experimentally demonstrated an absorption bandwidth exceeding 1000 nm while maintaining greater than
David Dang, Meena Salib, Quynh Dang, Sudip Gurung, Juan Calixto, Xuguo Zhou, Stuart Love, Massee Akbar, Aleksei Anopchenko, Wilton J.M. Kort‐Kamp, Ho Wai Howard Lee   +10 more
wiley   +1 more source

Multimodal multi-output ordinal regression for discovering gravitationally-lensed transients

Machine Learning: Science and Technology
Gravitational lenses are caused by massive astronomical objects that distort space-time, bending light. They can distort transient astrophysical events, such as supernovae (SN), which are the subject of extensive study.
Nicolò Oreste Pinciroli Vago, Piero Fraternali   +1 more
doaj   +1 more source

Optical Access to Dark Excitons Via Spin–Phonon Fano Interference

Advanced Science, EarlyView.
Dark excitons in quantum dots neither absorb nor emit light and stay hidden from optical spectroscopy. Quantum interference now reveals them: light scattered by acoustic phonons interferes with a phonon‐assisted spin flip between bright and dark exciton, carving a Fano dip into the spectrum whose position gives the bright–dark splitting. Magnetic field,
Janina J. Schindler, Katja Barthelmi, Mikhail M. Glazov, Carlo Sgroi, Sven Scholz, Arne Ludwig, Andreas D. Wieck, Jörg Debus   +7 more
wiley   +1 more source

Targeted decrease of portal hepatic pressure gradient improves ascites control after TIPS

Hepatology, EarlyView., 2022
The river diagram demonstrates that after transjugular intrahepatic portosystemic shunt insertion (TIPS) the majority of patients without ascites and 50% of the patients with ascites detectable at ultrasound, show the best response in the long term follow‐up.
Alexander Queck, Louise Schwierz, Wenyi Gu, Philip G. Ferstl, Christian Jansen, Frank E. Uschner, Michael Praktiknjo, Johannes Chang, Maximilian J. Brol, Filippo Schepis, Manuela Merli, Christian P. Strassburg, Jennifer Lehmann, Carsten Meyer, Jonel Trebicka   +14 more
wiley   +1 more source

Exploring Pulsar Timing Precision: A Comparative Study of Polarization Calibration Methods for NANOGrav Data from the Green Bank Telescope

The Astrophysical Journal
Pulsar timing array experiments have recently uncovered evidence for a nanohertz gravitational wave background by precisely timing an ensemble of millisecond pulsars.
Lankeswar Dey, Maura A. McLaughlin, Haley M. Wahl, Paul B. Demorest, Zaven Arzoumanian, Harsha Blumer, Paul R. Brook, Sarah Burke-Spolaor, H. Thankful Cromartie, Megan E. DeCesar, Timothy Dolch, Justin A. Ellis, Robert D. Ferdman, Elizabeth C. Ferrara, William Fiore, Emmanuel Fonseca, Nate Garver-Daniels, Peter A. Gentile, Joseph Glaser, Deborah C. Good, Ross J. Jennings, Megan L. Jones, Michael T. Lam, Duncan R. Lorimer, Jing Luo, Ryan S. Lynch, Cherry Ng, David J. Nice, Timothy T. Pennucci, Nihan S. Pol, Scott M. Ransom, Renée Spiewak, Ingrid H. Stairs, Kevin Stovall, Joseph K. Swiggum   +34 more
doaj   +1 more source

Photoelectric observations of lunar occultations at Engelhardt Astronomical Observatory

, 2020
Results of the lunar occultations observed from 1984 to 1997 at the Engelhardt Astronomical Observatory are reported. The times of lunar occultation for 63 stars, with a precision of a few milliseconds, and diameters for 12 stars have been ...
Rizvanov N., Shaimukhametov R.
core