Results 51 to 60 of about 72,633 (314)

Real-time forecast of MUF for radio paths from current data obtained from oblique sounding with continuous chirp signal

open access: yesSolar-Terrestrial Physics, 2018
We present a technique of MUF real-time forecast based on time extrapolation for maximum observed frequencies smoothed over a long-term forecast along a given path.
Ilyin N.V.   +4 more
doaj   +1 more source

ADVANCEMENTS IN SOLAR NEUTRINO PHYSICS [PDF]

open access: yesInternational Journal of Modern Physics E, 2013
We review the results of solar neutrino physics, with particular attention to the data obtained and the analyses performed in the last decades, which were determinant to solve the solar neutrino problem (SNP), proving that neutrinos are massive and oscillating particles and contributing to refine the solar models.
Antonelli, Vito, Miramonti, Lino
openaire   +2 more sources

Bioinspired Hierarchically Interconnected Supermacroporous Hydrogels via Dual‐Templating for Rapid Atmospheric Water Harvesting

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by lung alveolar architecture, a dual‐templating strategy combining CO2 bubble and ice templating creates mechanically robust super‐macroporous hydrogels with highly interconnected transport pathways. The resulting material achieves 3.37× faster moisture sorption and 1.72× higher solar‐driven water release than single‐templated counterparts ...
Pan Huang   +7 more
wiley   +1 more source

Physics concepts of solar ultraviolet radiation by distance education [PDF]

open access: yes, 2005
A series of activities that are suitable for distance education students to illustrate physics concepts related to solar radiation are described. The students can undertake the activities at any location without having to attend the home institution ...
Parisi, Alfio
core   +1 more source

High Performance Durable Vanadium Dioxide Spectral Selective Modulation Smart Windows

open access: yesAdvanced Functional Materials, EarlyView.
Crystallinity‐enhanced VO2 nanoparticles with a self‐limited amorphous oxidation shell achieve an order of magnitude durability improvement and high spectral selective modulation performance (luminous transmittance of 28.5%, solar modulation of 10.5%, and mid‐infrared emissivity modulation of 0.5) for smart windows.
Bin Li   +7 more
wiley   +1 more source

Modernization of the Irkutsk Incoherent Scatter Radar

open access: yesSolar-Terrestrial Physics, 2017
We present the results of modernization of the Irkutsk Incoherent Scatter Radar’s control and acquisition system. The modernization was carried out using results of space experiments Plasma–Progress and Radar–Progress involving Progress cargo spacecraft.
Kushnarev D.S.   +4 more
doaj   +1 more source

Climatology of 557.7 nm Emission Layer Parameters over South-East Siberia, Observations and Model Data

open access: yesApplied Sciences, 2023
The paper deals with long-term means of 557.7 nm atomic oxygen airglow intensity (OI) and air temperature within the mesopause over the southern regions of East Siberia.
Roman Vasilyev   +4 more
doaj   +1 more source

Decoupling Light Absorption From Photocatalytic Reactivity in TiO2 via Defect and Interfacial Engineering

open access: yesAdvanced Functional Materials, EarlyView.
A hybrid photoprotective material integrates N‐doped TiO2 with a metal‐phenolic network (MPN) to achieve broad‐spectrum attenuation and robust reactive oxygen species (ROS) suppression. Nitrogen doping extends attenuation into the UVA/high energy visible light (HEV) regions and facilitates fast charge recombination to inhibit ROS formation.
Saehan Choi   +9 more
wiley   +1 more source

Current sheets in the solar corona : formation, fragmentation and heating [PDF]

open access: yes, 2011
In this thesis we investigate current sheets in the solar corona. The well known 1D model for the tearing mode instability is presented, before progressing to 2D where we introduce a non-uniform resistivity.
Bowness, Ruth
core  

X-ray quasi-periodic pulsations in solar flares as magnetohydrodynamic oscillations [PDF]

open access: yes, 2005
We report the first observation at high spatial resolution of long-period quasi-periodic pulsations (QPP) of X-ray radiation during solar flares, made possible with the Reuven Ramaty High Energy Solar Spectroscopic Imager(RHESSI), supported by ...
Foullon, Claire   +12 more
core   +1 more source

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