Results 161 to 170 of about 43,863 (306)
Random Diophantine equations in the primes
Mathematika, Volume 72, Issue 3, July 2026.Abstract We consider equations of the form a1x1k+⋯+asxsk=0$a_{1}x_{1}^{k}+\cdots +a_{s}x_{s}^{k}=0$ where the variables xi$x_{i}$ are all taken to be primes. We define an analogue of the Hasse principle for solubility in the primes (which we call the prime Hasse principle), and prove that, whenever k⩾2$k\geqslant 2$, s⩾3k+2$s\geqslant 3k+2$, this holds
Philippa Holdridge
wiley +1 more source
Multi‐LiDAR Observations of Coastal Atmospheric Duct Evolution in Hampton Roads
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.Abstract To better understand the influence of atmospheric ducts on radio frequency (RF) operations, continuous high‐resolution observations of temperature and water vapor are essential. Hampton University's (HU) 48‐inch Raman‐Mie LiDAR provides such measurements through rotational and vibrational Raman techniques, enabling detailed monitoring of ...
Jia Su +4 more
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Large space telescope, phase A. Volume 3: Optical telescope assembly
, 1972 The development and characteristics of the optical telescope assembly for the Large Space Telescope are discussed. The systems considerations are based on mission-related parameters and optical equipment requirements.
core
The Development of a Low-Cost Fresnel Lens UV Telescope with SiPM Array for Low-Light Atmospheric Transient Detection. [PDF]
Sensors (Basel)Chiritoi G, Popescu EM.
europepmc +1 more source
Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.Abstract A new proton radiation belt was identified during the geomagnetic superstorm of 10–11 May 2024. To investigate its origin, we use an MHD‐test particle simulation to model solar energetic proton (SEP) trapping and the evolution of the initial trapped proton population during the storm.
Murong Qin +10 more
wiley +1 more source
MPA-based pointing calibration for Q/V band LEO canted antennas. [PDF]
Sci RepRen P, Zhou G, Li X, Han J.
europepmc +1 more source
Sub‐MeV Electron Precipitation Driven by EMIC Waves: New Insights From CIRBE/REPTile‐2 Measurements
Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.Abstract Electromagnetic ion cyclotron (EMIC) waves are recognized as a key driver of relativistic (>1 MeV) electron loss in Earth's magnetosphere. Growing evidence also suggests that EMIC wave can efficiently scatter sub‐MeV electrons, although the precise energy range and the underlying physical mechanisms remain debated.
Zheng Xiang +7 more
wiley +1 more source