Results 131 to 140 of about 1,066,639 (291)

Origins of Very Low Helium Abundance Streams Detected in the Solar Wind Plasma

open access: yesThe Astrophysical Journal
The abundance of helium ( A _He ) in the solar wind exhibits variations typically in the range from 2% to 5% with respect to solar cycle activity and solar wind velocity. However, there are instances where the observed A _He is exceptionally low (
Yogesh   +6 more
doaj   +1 more source

Nevada Solar 1

open access: yes, 2006
aerial view, solar array, October 26 ...
Acciona Solar Power
core  

Metal‐Half‐Salen Chemistry for One‐Pot Mineralization on Hydrophobic Polymer Membranes

open access: yesAdvanced Science, EarlyView.
Here we report a versatile one‐pot synthetic strategy for organic–inorganic composite membranes, which leverages a metal half‐Salen system to precisely govern the competing kinetics of coordination and hydrolysis. In contrast to conventional two‐step metal‐phenol chemistries, our integrated approach substantially simplifies the fabrication process ...
Rou‐Ming Wen   +8 more
wiley   +1 more source

Can PV or solar thermal systems be cost effective ways of reducing CO 2 emissions for residential buildings? [PDF]

open access: yes, 2006
This paper compares two solar systems, an actual building integrated, photovoltaic roof (BIPV) and a notional solar thermal system for a residential block in London, UK.
Scott, K, Croxford, B
core  

Atomically Correlated Phosphorus–Sulfur Sites in Carbon Nitride for Efficient Hydrogen Peroxide Production

open access: yesAdvanced Science, EarlyView.
Atomically correlated phosphorus–sulphur sites are introduced into graphitic carbon nitride to regulate charge distribution, suppress localized trapping, and enhance oxygen activation. The resulting metal‐free photocatalyst selectively promotes the two‐electron oxygen reduction pathway, enabling efficient hydrogen peroxide production in pure water ...
Adnan Ahmad   +12 more
wiley   +1 more source

Likely Common Coronal Source of Solar Wind and 3He-enriched Energetic Particles: Uncoupled Transport from the Low Corona to 0.2 au

open access: yesThe Astrophysical Journal
Parker Solar Probe (PSP) observations of a small dispersive event on 2022 February 27 and 28 indicate scatter-free propagation as the dominant transport mechanism between the low corona and greater than 35 solar radii.
D. G. Mitchell   +20 more
doaj   +1 more source

Abundances from solar-flare gamma-ray line spectroscopy [PDF]

open access: yes, 1985
Elemental abundances of the ambient gas at the site of gamma ray line production inthe solar atmosphere are deduced using gamma ray line observations from a solar flare.
Forrest, D. J.   +3 more
core  

Spectral‐Kinetic Synergy in Au‐Network Engineered FeTiO3: A Multi‐Field Coupling Strategy for Lunar In Situ Resource Utilization

open access: yesAdvanced Science, EarlyView.
How can humanity achieve lunar self‐sufficiency? We utilize Au topology networks to modify the abundant lunar ilmenite. This catalyst, under sunlight, can convert waste carbon dioxide into space fuel. This design leverages the moon's natural vacuum for green manufacturing, avoiding the waste of gold and serving as “artificial chloroplasts” to sustain ...
Yahang Wang   +9 more
wiley   +1 more source

Unsuccessful Coupling of Weakly Coordinating Anion–Based Mg Salts and Alkoxyalkylamine Solvents for Rechargeable Mg Battery Application: Trace Water‐Driven Interfacial Failure

open access: yesAdvanced Science, EarlyView.
Combining recently established two ground‐breaking concepts, the adoption of WCAs and the use of alkoxyalkylamine‐based solvents in electrolyte formulations for rechargeable magnesium metal batteries, has led to unexpectedly unsuccessful electrochemical Mg plating/stripping performance. Comprehensive experimental and computational analyses revealed the
Toshihiko Mandai   +4 more
wiley   +1 more source

Abundance Diagnostics from a Slitless Imaging Spectrometer: A Proof-of-concept for MaGIXS-2

open access: yesThe Astrophysical Journal
Elemental abundance diagnostics in the solar corona are crucial for understanding energy transport, plasma heating, and magnetic activity. Most earlier imaging-spectroscopic studies have relied on slit-based spectrometers, which offer high spectral ...
Biswajit Mondal   +2 more
doaj   +1 more source

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