Results 51 to 60 of about 237,970 (294)
Research Prospect of Anti-Jamming Strategy for the Satellite Internet
天地一体化信息网络, 2022 As an important infrastructure of the national information system, the satellite internet is of great signifi cance to the national security.Thus, it needs to ensure the validity and reliability of the data transmission in the hostile jamming environment.
Chen HAN, Aijun LIU, Kang AN
doaj
The Inevitability of Militarization of Outer Space [PDF]
, 2019 At the end of the second decade of the 21st century, we witness a progressive increase of strategic importance of artificial satellites and other orbital systems, which is a consequence of the ever-accelerating development of space technologies that ...
Bernat, Paweł
core +1 more source
Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8
Advanced Functional Materials, EarlyView.Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi +8 more
wiley +1 more source
[Un]happy Together: Why the Supremacy Clause Preempts State Law Digital Performance Rights in Radio-Like Streaming of Pre-1972 Sound Recordings [PDF]
, 2015 Lovers of the music of Frank Sinatra, Elvis Presley, Etta James, and hundreds of other recording artists whose records were made before February 15, 1972, may soon have a hard time hearing these great artists on any satellite or Internet radio service ...
Ross, Julie L.
core +3 more sources
Ferroelectricity in Antiferromagnetic Wurtzite Nitrides
Advanced Functional Materials, EarlyView.We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa +3 more
wiley +1 more source
Application of the Power Grid Business Carrying on Low Earth Orbit Broadband Satellite Internet
天地一体化信息网络, 2023 LEO (Low-earth-orbit) broadband satellite internet can provide a lot of user with all-time network coverage, broadband access and information transport service, which has the advantage of high capacity, broad band, low delay and high elasticity as space ...
Liang ZHU +5 more
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STARLINK SATELLITE INTERNET REVIEW
Proceedings of the international scientific conference " MODERN CHALLENGES IN TELECOMMUNICATIONS ", 2021 This article will describe the Starlink satellite Internet system. Namely, the construction of this system and the operation of satellites, their location and number. The principle of operation, technology and the current state of the whole project.
openaire +1 more source
2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics
Advanced Functional Materials, EarlyView.2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit +5 more
wiley +1 more source
Key Technologies and Challenges of Satellite Deterministic Network
天地一体化信息网络, 2023 Satellite internet is an important means to meet the ubiquitous network access in the future.It has a wide range of application scenarios in disaster prevention, marine operation and scientific research broadband on account of its wide coverage, large ...
Ruoyu JI +5 more
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Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges
Advanced Functional Materials, EarlyView.Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley +1 more source