Results 71 to 80 of about 3,067,597 (310)

Features of correlation curves of the Siberian Radioheliograph

open access: yesSolar-Terrestrial Physics
Correlation curves of the multi-frequency Siberian Radioheliograph (SRH) provide a sensitive indication and demonstrative representation of monitoring the microwave life of the active Sun.
Uralov Arkadiy   +3 more
doaj   +1 more source

First results of absolute measurements of solar flux at the Irkutsk Incoherent Scatter Radar (IISR)

open access: yesSolar-Terrestrial Physics, 2018
The Irkutsk Incoherent Scatter Radar (IISR) allows us to carry out passive radio observations of the Sun and other powerful radio sources. We describe a method for absolute measurements of spectral flux density of solar radiation at IISR.
Setov A.G.   +4 more
doaj   +1 more source

Solar Flare Physics [PDF]

open access: yes, 1998
We have continued our previous efforts in studies of fourier imaging methods applied to hard X-ray flares. We have performed physical and theoretical analysis of rotating collimator grids submitted to GSFC(Goddard Space Flight Center) for the High Energy
Schmahl, Edward J., Kundu, Mukul R.
core  

Blue Upconversion Organic Light‐Emitting Diodes Achieving 1000 cd m−2 With an Operating Voltage of 2.7 V by Suppressing Interfacial Exciton Quenching

open access: yesAdvanced Functional Materials, EarlyView.
A triplet‐blocking layer controls triplet exciton dynamics in blue upconversion OLEDs. The layer keeps charge transfer (CT)‐generated triplet excitons inside the triplet‐triplet annihilation (TTA) host, suppresses anode‐side interfacial quenching, and increases the steady‐state triplet population.
Qing‐Jun Shui   +5 more
wiley   +1 more source

Seasonal variability of horizontal neutral wind in the Baikal Region from Fabry—Perot interferometer observations and different versions of HWM

open access: yesSolar-Terrestrial Physics
This study is based on observations of the atomic oxygen airglow emission at 630 nm obtained with a Fabry—Perot interferometer (FPI) of the National Heliogeophysical Complex.
Budovkina Aleksandra   +3 more
doaj   +1 more source

Solar sail orbits at the Earth-Moon libration points [PDF]

open access: yes, 2009
Solar sail technology offers new capabilities for the analysis and design of space missions. This new concept promises to be useful in overcoming the challenges of moving throughout the solar system.
Simo, Jules, McInnes, Colin R.
core   +1 more source

Charge‐Polarized Ni─S4 Single‐Atom Sites Drive Selective Photoreforming of Poly(lactic acid) to Lactate and Hydrogen

open access: yesAdvanced Functional Materials, EarlyView.
Atomically dispersed Ni–S4 sites on CdS nanorods induce interfacial charge polarization, directing photogenerated electrons to H2 evolution and holes to selective ester‐bond cleavage of poly(lactic acid). Without sacrificial reagents, this charge‐coupled system produces lactate while suppressing overoxidation, achieving an H2 evolution rate of 41.74 ...
Yu Yao   +8 more
wiley   +1 more source

Fine details in solar flare ribbons

open access: yesAstronomy & Astrophysics
Context. Flare ribbons serve as chromospheric footprints of energy deposition resulting from particle acceleration during magnetic reconnection. Their fine-scale structure provides a valuable tool for probing the dynamics of the flare reconnection ...
Thoen Faber Jonas   +6 more
doaj   +1 more source

Solar Flares, the Solar Corona, and Solar Physics [PDF]

open access: yesSymposium - International Astronomical Union, 2000
The Sun serves as the local physics laboratory for studying the suprathermal activity phenomena of stars. Scrutiny of the Sun has led to the discovery of a host of previously unknown physical effects, largely within the classical physics of Newton and Maxwell, but including quantum mechanics and lepton physics as well.
openaire   +1 more source

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