Results 131 to 140 of about 186,069 (295)
GNSS Satellite Orbit Validation Using Satellite Laser Ranging [PDF]
, 2013 With a total of four new regional and global navigation sa tellite systems that have launched first satellites or even started an operational serv ice, the GNSS landscape has experienced major changes in recent years.
Steigenberger, Peter +2 more
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Advanced Functional Materials, EarlyView.A field‐driven transition from chiral stripes to an achiral fan state is observed in a tetragonal magnet and linked to a temperature‐dependent rotation of the effective Dzyaloshinskii–Moriya interaction axis. This interplay generates pronounced in‐plane anisotropy and provides a new route for controlling chiral spin textures in noncentrosymmetric ...
Victor Ukleev +19 more
wiley +1 more source
Understanding Low Earth Orbit (LEO) Satellites and Policy Issues
Abstrakt:Low Earth Orbit (LEO) satellite systems like Starlink and OneWeb are transforming global internet access by reducing latency and expanding coverage.
York, Dan
core +1 more source
Disorder‐Broadened Topological Hall Phase and Anomalous Hall Scaling in FeGe
Advanced Functional Materials, EarlyView.By systematically introducing defects into FeGe via ion‐beam modification, we demonstrate that disorder broadens the temperature regime over which the topological Hall effect ‐ a signature of skyrmions or other chiral textures — appears, while also increasing its magnitude.
Chaman Gupta +11 more
wiley +1 more source
Allocation of Orbit and Spectrum Resources for Regional Communications: What's at Stake? [PDF]
Contentious debate surrounds allocation of the geostationary orbit and electromagnetic spectrum, two resources used by communications satellites. An extensive economics literature alleges that the nonmarket administrative allocative procedures now in ...
Macauley, Molly
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Advanced Functional Materials, EarlyView.A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li +7 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Combined UV–vis transmittance and wavelength‐dependent photo‐assisted DC I–V analyses reveal defect‐induced optical instability and a high density of deep donor‐like subgap traps in La‐doped SrSnO3. The resulting MOSFET achieves one of the highest on/off ratios reported for ABO3 perovskite devices, demonstrating the promise of stannate perovskites as ...
Sojin Jung +17 more
wiley +1 more source
End-of-life deorbiting services for small satellites making use of bare electrodynamic tethers
, 2014 Guidelines for space debris mitigation call for a 25-year limit on the permanence in low Earth orbits for satellites of any mass size. The aim of this paper is to analyze bare electrodynamic tapes/tethers as deorbiting devices for small satellites.
LORENZINI, ENRICO +5 more
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