Results 41 to 50 of about 78,343 (241)

On the origin of the diffuse gamma-ray background radiation [PDF]

open access: yes, 2006
We show that inverse Compton scattering of cosmic-microwave-background and starlight photons by cosmic-ray electrons in the interstellar and intergalactic space explains well the spectrum and intensity of the diffuse gamma-ray background radiation (GBR),
Dado, Shlomo, Dar, Arnon, De Rujula, A
core   +2 more sources

Near‐ground microwave radiometry for on‐the‐go surface soil moisture sensing in micro‐irrigated orchards in California

open access: yesAgrosystems, Geosciences &Environment, Volume 8, Issue 3, September 2025.
Abstract High‐resolution geospatial soil moisture measurements are needed to inform hydrological modeling and to guide water management in agriculture, especially in highly heterogeneous systems such as micro‐irrigated orchards. In this research, we used a Portable L‐band Radiometer (PoLRa) to map very high‐resolution (<2 m) soil surface moisture in ...
Elia Scudiero   +7 more
wiley   +1 more source

Probing the statistic in the cosmic microwave background

open access: yes, 2009
Kolmogorov's statistic is used for the analysis of properties of perturbations in the Cosmic Microwave Background signal. We obtain the maps of the Kolmogorov stochasticity parameter for W and V band temperature data of WMAP which are differently ...
E. POGHOSIAN   +4 more
core   +1 more source

Deciphering Pleistocene Fault Activity in the Eastern Alps: Dating Fault Gouges With Electron Spin Resonance and Optically Stimulated Luminescence

open access: yesTectonics, Volume 44, Issue 8, August 2025.
Abstract The Eastern Alps have been influenced by post‐collisional indentation tectonics since the Miocene. Currently, Adria‐Europe convergence, albeit slow, is accommodated and distributed across several faults. The seismogenic potential of some of these faults is unclear. We applied optically stimulated luminescence (OSL) and electron spin resonance (
E. Prince   +4 more
wiley   +1 more source

Revisiting Sub‐Surface Drought Cascades With Daily Satellite Observations of Soil Moisture and Terrestrial Water Storage

open access: yesWater Resources Research, Volume 61, Issue 8, August 2025.
Abstract The increasing frequency, intensity, and duration of extreme heat and drought events in a warming climate make it crucial to understand the relationship between surface and subsurface water storage dynamics during these events. Changes in water storage can be studied globally using satellite observations.
Daniel Blank   +3 more
wiley   +1 more source

Analysis, Testing, and Design of a UHF and HF Peer‐to‐Peer Communication System for the Europan Cryosphere

open access: yesEarth and Space Science, Volume 12, Issue 8, August 2025.
Abstract This study presents a validated design of a dual‐band wireless relay system of “pucks” for through‐ice communication between a cryobot and a surface lander during a future exploration of the Europan cryosphere. The design of a terrestrial demonstration system and the results of a 103 m through‐ice system test in a relevant environment near ...
Jake Sahli   +6 more
wiley   +1 more source

Precision cosmology as a test for statistics [PDF]

open access: yes, 1998
We compute the shift in the epoch of matter-radiation equality due to the possible existence of a different statistical (non-extensive) background. The shift is mainly caused by a different neutrino-photon temperature ratio.
Alemany   +25 more
core   +2 more sources

Large-scale polarization of the cosmic microwave background radiation

open access: yesPhysical Review D, 1995
14 pages, LaTeX style, IP-ASTP-08-93, 2 revised figures available upon ...
Kin-Wang Ng, Ka Lok Ng
openaire   +4 more sources

Design of Waveguide NbN‐Based Superconductor–Insulator–Superconductor Mixer for 650 GHz

open access: yesAdvanced Photonics Research, Volume 6, Issue 7, July 2025.
This research work focuses on a waveguide NbN‐based superconductor–insulator–superconductor mixer operating at 650 GHz. The signal coupling circuit is designed using a waveguide‐microstrip coupling structure, and the return loss obtained is lower than −16 dB. For the mixing circuit, its return loss is less than −7.5 dB, and the return loss reduces with
Lianhao He, Fangting Lin, Xiaoyong He
wiley   +1 more source

The CMBR Spectrum [PDF]

open access: yes, 1997
A short review of the measured spectrum of the Cosmic Microwave Background Radiation (CMBR) and implications. Extensions of the Kompaneets equation and Sunyaev-Zel'dovich effect are given.Comment: 30 pages, 9 figures from lectures at NATO ASI "The Cosmic
Stebbins, Albert
core   +1 more source

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