Results 81 to 90 of about 6,299 (262)
The abundances of heavy elements in the atmosphere of hyades giant 6 Tauri
Odessa Astronomical Publications, 2017 Comparison of synthetic spectrum of the б Tauri photosphere and high quality spectral atlas of this star permit us to identify absorption lines of iron and heavy elements Z ≥ 30 in the observed spectrum.
V. F. Gopka
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Functional Metal Complexes for Solar–Light‐Driven Energy Conversion
Advanced Materials, EarlyView.This review provides an exhaustive summary of the recent advancements of functional metal complexes in solar‐to‐electrical, ‐chemical, and ‐thermal energy conversion, comprising material categories, design strategies, underlying principles of operation, and identified improvement of performances.
Yanyan Qin +3 more
wiley +1 more source
Element Abundances of Solar Energetic Particles and the Photosphere, the Corona, and the Solar Wind
Atoms, 2019 From a turbulent history, the study of the abundances of elements in solar energetic particles (SEPs) has grown into an extensive field that probes the solar corona and physical processes of SEP acceleration and transport.
Donald V. Reames
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Solar model with CNO revised abundances
, 2004 Recent three-dimensional, NLTE analyses of the solar spectrum have shown a significant reduction in the C, N, O and Ne abundances leading to a Z/X ratio of the order of 0.0177. We have computed solar models with this new mixture in the OPAL opacity tables. The present He abundance we find seems rather consistent with the helioseismic value.
Montalbán, J. +4 more
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Solar Abundances: The Reference System [PDF]
Symposium - International Astronomical Union, 1991 We summarize the recent critical compilation and analysis of the solar and meteoritic abundances by Anders and Grevesse (1989). We also update a few solar photospheric results and present a detailed discussion of the problem of the solar abundance of iron.
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De Rerum Natura: How Do Halide Perovskites Self‐Heal From Damage?
Advanced Materials, EarlyView.How can lead‐halide‐perovskites self‐heal after damage from light, heat, mechanical strain, or radiation? We show that reversible chemical defects underly performance losses and recovery, highlighting the roles of halide and proton migration, redox‐driven reactions, and acid‐base equilibria.
Davide Raffaele Ceratti +2 more
wiley +1 more source
The Astrophysical JournalThe origin of the slow solar wind is not well understood, unlike the fast solar wind that originates from coronal holes. In situ elemental abundances of the slow solar wind suggest that it originates from initially closed field lines that become open ...
Alexandros Koukras +2 more
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, 2023 The abolition of fossil fuels requires more than new fuels to power modern pleasures. It also requires new subjectivities. Petro-people need to become solar subjects. Becoming solar subjects, and not just consumers of solar energy, means nurturing solarity as a way of life, a geo-theology.
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Single‐Atom Photocatalyst as Floatable Artificial Leaf for Upcycling Oceanic Plastic Waste
Advanced Materials, EarlyView.To resolve the catastrophic disaster of oceanic plastic pollution, the novel Ru single atom loaded ZnIn2S4 photocatalysts, in the forms of powder or floatable artificial leaf, were prepared for direct conversion of raw polypropylene plastic into valuable chemicals. The optimized catalyst exhibits exceptional performance, with a total formic/acetic acid
Amin Talebian‐Kiakalaieh +6 more
wiley +1 more source
Solar abundances as derived from solar energetic particles [PDF]
AIP Conference Proceedings, 1989 Recent studies have shown that there are well defined average abundances of heavy (Z≳2) solar energetic particles (SEPs), with variations in the acceleration and propagation producing a systematic flareâ€toâ€flare fractionation that depends on the charge per unit mass of the ion. Correcting the average SEP abundances for the fractionation yields SEPâ€
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