Results 41 to 50 of about 11,707 (261)
Advanced Science, EarlyView.The concept of high‐dimensional EM modulation using the STMA for physical layer secure communication is illustrated in figure. The STMA consists of a series of programmable unit cells, with 1‐bit reconfigurable phase states (0/π). The STMA is excited by a monochromatic continuous wave (CW) at frequency fc and controlled by a field‐programmable gate ...
Xinyu Fang +6 more
wiley +1 more source
The Astrophysical JournalOur study of H α line profiles of rapid blue- and redshifted excursions measured with Goode Solar Telescope revealed an asymmetrical three-peak structure present in the blue wing of the H α line, suggesting complex internal velocity fields that may ...
Vasyl Yurchyshyn +6 more
doaj +1 more source
Advanced Science, EarlyView.A rigid‑flexible integrated CO depot is engineered by embedding rigid COFQDs into a flexible ECM gel network. The rigid framework enables high‑capacity CO storage and sonodynamic bacterial killing, while the flexible ECM gel controls sustained CO release, collectively eradicating multidrug‑resistant infection and promoting scarless healing.
Baohong Sun +13 more
wiley +1 more source
Magnetic Topology and Loop Statistics in Observed Coronal Holes Using Potential Field Modeling
The Astrophysical JournalPotential field source surface (PFSS) models are widely used to study the solar corona and form the basis for solar wind forecasting, yet they often fail to reproduce observed properties of coronal holes.
Stephan G. Heinemann +2 more
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Advanced Science, EarlyView.Metal‐anode batteries using Li, Na, Mg, and Ca offer exceptionally high energy density, but dendrites, unstable interphases, cracking, and pore formation hinder durability and safety. This review shows how careful electrolyte and interphase design can stabilize these reactive metals.
Jian Pan +3 more
wiley +1 more source
Incoherent Solar Radio Emission
Frontiers in Astronomy and Space Sciences, 2020 Incoherent solar radio radiation comes from the free-free, gyroresonance, and gyrosynchrotron emission mechanisms. Free-free is primarily produced from Coulomb collisions between thermal electrons and ions.
Alexander Nindos
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Modulation of Cosmic-Ray Antiprotons in the Heliosphere: Simulations for a Solar Cycle
The Astrophysical Journal, 2023 The precision measurements of galactic cosmic-ray protons from the Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics and the Alpha Magnetic Spectrometer are reproduced using a well-established three-dimensional numerical model for ...
O. P. M. Aslam +3 more
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Inferring depth-dependent plasma motions from surface observations using the DeepVel neural network
Journal of Space Weather and Space Climate, 2021 Coverage of plasma motions is limited to the line-of-sight component at the Sun’s surface. Multiple tracking and inversion methods were developed to infer the transverse motions from observational data.
Tremblay Benoit +4 more
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Microwave structure of the quiet sun
The Astrophysical Journal, 1988 Two-frequency VLA observations of the quiet sun were obtained on July 13, 1985. Although the 4.9 GHz full-day synthesis maps correspond closely to images made in H-alpha, Ca II K, and magnetograms, the correspondence is much less apparent on shorter time scale maps, and it is suggested that the discrepancy is due to nearly continual variations in the ...
Dale E. Gary, Harold Zirin
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Annals of Neurology, EarlyView.Objective Dysarthria is one of the most common and disabling side effects of subthalamic nucleus deep brain stimulation (STN‐DBS) in Parkinson's disease (PD). Stimulation often exacerbates speech dysfunction beyond the effects of PD progression, likely because of current spread to structures surrounding the STN.
Petr Krýže +17 more
wiley +1 more source