Results 81 to 90 of about 1,226,273 (354)

Ionospheric response over Europe during the solar eclipse of March 20, 2015

open access: yesJournal of Space Weather and Space Climate, 2016
The solar eclipse on March 20, 2015 was a fascinating event for people in Northern Europe. From a scientific point of view, the solar eclipse can be considered as an in situ experiment on the Earth’s upper atmosphere with a well-defined switching off and
Hoque Mohammed Mainul   +9 more
doaj   +1 more source

Solar Neutrinos and the Eclipse Effect

open access: yes, 1999
The solar neutrino counting rate in a real time detector like Super--Kamiokanda, SNO, or Borexino is enhanced due to neutrino oscillations in the Moon during a partial or total solar eclipse.
A. Borione   +25 more
core   +1 more source

The 1919 measurement of the deflection of light [PDF]

open access: yes, 2014
The measurement of the deflection of starlight during a total solar eclipse on May 29, 1919 was the first verification of general relativity by an external team of scientists, brought Einstein and his theory to the attention of the general public, and ...
Will, Clifford M.
core   +2 more sources

Methylation‐Induced Permanent Charge Polarization in Covalent Organic Frameworks for Visible Light‐Driven Water Decontamination and Disinfection

open access: yesAdvanced Science, EarlyView.
A targeted in situ methylation strategy is developed to engineer cationic centers in a quinoline‐linked COF (NQ‐COFS1‐Me), creating a strong built‐in electric field, which effectively suppresses excitonic effects and promotes charge separation. The optimized material demonstrates powerful photocatalytic ROS generation for rapid bacterial inactivation ...
Xuewen Peng   +7 more
wiley   +1 more source

Solar eclipse effects of 22 July 2009 on Sporadic-E [PDF]

open access: yesAnnales Geophysicae, 2010
The total solar eclipse of 22 July 2009, was visible from some regions of China and the intense sporadic-E (Es) that broke out during the solar eclipse period over the eastern China provided a unique chance to study solar eclipse effects on the Es ...
G. Chen   +4 more
doaj   +1 more source

Physical Processes Driving the Response of the F2 Region Ionosphere to the 21 August 2017 Solar Eclipse at Millstone Hill

open access: yesJournal of Geophysical Research: Space Physics, 2019
The high‐resolution thermosphere‐ionosphere‐electrodynamics general circulation model has been used to investigate the response of F2 region electron density (Ne) at Millstone Hill (42.61°N, 71.48°W, maximum obscuration: 63%) to the Great American Solar ...
Wenbin Wang   +5 more
semanticscholar   +1 more source

Halide‐Exchange Arrest Enables Reabsorption‐Free CsPbCl3/CsPbI3 Perovskite Core/Shell Nanocrystals

open access: yesAdvanced Science, EarlyView.
Achieving large Stokes shifts in perovskite nanocrystals is challenging due to halide mobility that disrupts stable core–shell structures. Using CdCl2 passivation, this work stabilizes CsPbCl3/CsPbI3 heterostructures, yielding a ≈1.2 eV Stokes shift, high quantum yield, and fast exciton transfer, enabling reabsorption‐free emitters for advanced ...
Hiba H. Karakkal   +13 more
wiley   +1 more source

Prediction of the Ionospheric Response to the 14 December 2020 Total Solar Eclipse Using SUPIM‐INPE

open access: yesJournal of Geophysical Research: Space Physics, 2020
We present the first prediction of the ionospheric response to the 14 December 2020 solar eclipse using the SUPIM‐INPE model. Simulations are made for all known ionosonde stations for which solar obscuration is significant.
M. Martínez‐Ledesma   +4 more
semanticscholar   +1 more source

Combining Electrochemical Reduction with Biosynthesis for Directed Conversion of CO2 into a Library of C3 Chemicals

open access: yesAdvanced Science, EarlyView.
In the H‐type electrolytic cell, carbon dioxide is reduced to acetic acid via electro‐microbial catalysis. The simply processed acetic acid is further converted through biological fermentation into high‐value‐added products, including acrylic acid, L‐lactic acid, and β‐alanine.
Kaixing Xiao   +8 more
wiley   +1 more source

Total Solar Eclipse, January 24, 1925 [PDF]

open access: yes, 1925
On January 24, 1925, a total eclipse of the sun was visible throughout much of New England.
DeWolf, Halsey
core   +1 more source

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