Results 171 to 180 of about 74,044 (308)

Benchmarking Hybrid CNN‐Transformer Versus Pure Transformer Architectures for Accelerated Hyperpolarized 129Xe MRI Reconstruction

Journal of Magnetic Resonance Imaging, Volume 64, Issue 1, Page 266-280, July 2026.
ABSTRACT Background Hyperpolarized 129Xe MRI faces technical challenges including low signal‐to‐noise ratio and breath‐hold constraints. Current literature focuses on proprietary deep learning methods or image‐domain enhancements. Purpose To present a comprehensive evaluation of transformer and hybrid CNN‐transformer architectures integrating dual ...
Ramtin Babaeipour, Matthew S. Fox, Grace Parraga, Alexei Ouriadov   +3 more
wiley   +1 more source

Solar Flare Detection from Sudden Ionospheric Disturbances in VLF Signals via a CNN-HMM Framework. [PDF]

Sensors (Basel)
Velchev Y, Bonev B, Iliev I, Gallagher P, Petkov PZ, Nachev I.   +5 more
europepmc   +1 more source

A low-frequency distributed aperture array for radio astronomy in space

, 2010
The frequency band below 30 MHz is one of the last unexplored bands in radio astronomy. This band is well suited for studying the early cosmos at high hydrogen redshifts, the so-called dark ages, extragalactic surveys, (extra) solar planetary bursts, and high energy particle physics.
Boonstra, Albert-Jan, Saks, Noah, Falcke, Heino, Klein-Wolt, Marc, Bentum, Marinus Jan, Rajan, Raj Thilak, Wijnholds, Stefan J., Arts, Michel J., van 't Klooster, Kees C.G.M., Beliën, Frederik   +9 more
openaire   +1 more source

LLM‐Assisted Topic Modelling for Hate Speech Characterization

Expert Systems, Volume 43, Issue 7, July 2026.
ABSTRACT In the digital era, the internet and social media have transformed communication but have also facilitated the spread of hate speech and disinformation, leading to radicalization, polarisation and toxicity. This is especially concerning for media outlets due to their significant role in shaping public discourse. This study examines the topics,
Alejandro Buitrago López, Javier Pastor‐Galindo, José A. Ruipérez‐Valiente   +2 more
wiley   +1 more source

A phenomenological comparison of the effects of blue light, red light and radio waves on the escape speed of Caenorhabditis elegans and the rate of closure of Gerbera jamesonii petals. [PDF]

PLoS One
Kline AW, Beattie CS, Shenk AK, Spicher SI, Bloss TA, Tipton L, Walker MT, Vallier LG, Schmidt KL, Scarel G.   +9 more
europepmc   +1 more source

Earthward Propagated Auroral Kilometric Radiation: Observations From Polar

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Auroral Kilometric Radiation (AKR), the strongest natural radio emission from Earth's magnetosphere, has been primarily observed in space. It is generally understood to propagate anti‐Earthward and be detected at large radial distances, while Earthward‐directed waves are thought to be blocked by the ionosphere. Surprisingly, AKR‐like emissions
Olha Melnychenko, Siyuan Wu, Daniel K. Whiter, Baptiste Cecconi, Claire Baskvetich   +4 more
wiley   +1 more source

A tidal disruption event from an intermediate-mass black hole revealed by comprehensive multi-wavelength observations. [PDF]

Nat Commun
Wang J, Huang M, Xue Y, Jiang N, Huang S, Wang Y, Zhu J, Zhu S, Dai L, Jin C, Luo B, Shu X, Sun M, Wang T, Zou F.   +14 more
europepmc   +1 more source

Long‐Term IASI Observations of Upper Tropospheric CO in the Asian Summer Monsoon Region: Trends and Eddy Shedding Signatures

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 11, 16 June 2026.
Abstract The Asian Summer Monsoon (ASM) acts as a key mechanism for the vertical transport of surface pollutants into the upper troposphere (UT), which can have far‐reaching impacts on air quality and climate at regional to global scales. We analyze 16 years (2008–2023) of carbon monoxide (CO) observations from the Infrared Atmospheric Sounding ...
Anne Boynard, Camille Viatte, Laura L. Pan, Shawn B. Honomichl, Angel Luque Lazaro, Selviga Sinnathamby, Juliette Hadji‐Lazaro, Warren P. Smith, Qing Liang, Francesco D'Amato, Silvia Viciani, Teresa Campos, Cathy Clerbaux   +12 more
wiley   +1 more source

Quantum interference of single photons without optical superposition: Toward high resolution imaging in spatial and spectral domains. [PDF]

Sci Adv
Zhang Y, Cui L, Guo X, Kang G, Zhao W, Deng Q, Tang X, Li X, Li C, Ou ZY.   +9 more
europepmc   +1 more source

Multi-antenna observations in the low-frequency radio astronomy of solar system objects and related topics studies

, 2016
A. Konovalenko, P. Zarka, H. Rucker, V. Zakharenko, O. Ulyanov, M. Sidorchuk, S. Stepkin, V. Melnik, N. Kalinichenko, A. Stanislavsky, P. Tokarsky, V. Koliadin, V. Shepelev, V. Dorovskyy, I. Bubnov, S. Yerin, A. Reznichenko, G. Litvinenko, N. Shevchuk, A. Koval, I. Vasylieva, K. Mylostna, A. Skoryk, A. Shevtsova, Y. Volvach, E. Vasylkovsky, V. Ryabov, A. Lecacheux, L. Denis, M. Pachenko, G. Fischer, M. Imai, Jean-Mathias Greissmeier, G. Mann, O. A. Litvinenko, A. Brazhenko, R. Vashchishin, A. V. Frantsuzenko, V. Koshovyy, A. Lozinsky, O. Ivantyshin   +40 more
semanticscholar   +1 more source