Results 61 to 70 of about 2,767,562 (223)

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

3D Nonequilibrium Ionization and Spectroscopic Modeling of Coronal Mass Ejections. I. Comparison with Hinode/EIS Observations

The Astrophysical Journal
High-resolution EUV spectroscopy provides an informative diagnostic tool for the early evolution of coronal mass ejections (CMEs) since it can directly measure many physical properties of CME plasma close to the Sun that cannot be determined from white ...
E. M. Wraback, E. Landi, W. B. Manchester, J. Szente   +3 more
doaj   +1 more source

A UV-XUV attosecond beamline with few-femtosecond tunable ultraviolet pump pulses [PDF]

EPJ Web of Conferences
Ultrafast charge transfer processes in organic materials which occur in organic materials are fundamental for advancing solar energy conversion technologies.
Colaizzi Lorenzo, Mocci Daniele, Pini Marta, Kotsina Nikoleta, Nordmann Joleik, Brahms Chris, Travers John, Lucchini Matteo, Borrego-Varillas Rocío, Reduzzi Maurizio, Nisoli Mauro   +10 more
doaj   +1 more source

Direct measurements of impulsive extreme ultraviolet and hard X-ray solar flare emission

The Astrophysical Journal, 1982
Direct, simultaneous measurements of the 100--1030 A EUV and 15--150 keV X-ray emission during solar flares having impulse phases are reported. Time histories of the energy fluxes and flux ratios for three flares were obtained from Solrad 11 satellite data.
D. M. Horan, R. W. Kreplin, G. G. Fritz
openaire   +1 more source

Recent Advances in Plasma‐Enhanced Atomic Layer Etching for Next‐Generation Nanofabrication

Advanced Materials Interfaces, EarlyView.
Continued semiconductor miniaturization demands atomic‐scale patterning and ultralow surface roughness beyond the capabilities of conventional reactive ion etching. This review highlights advances in isotropic and anisotropic plasma‐enhanced atomic layer etching since 2020, covering fundamental mechanisms, applications across major semiconductor ...
Shih‐Nan Hsiao
wiley   +1 more source

Extreme-ultraviolet Polarimetric Diagnostics of the Solar Corona: The Hanle Effect of Ne viii 770 Å

The Astrophysical Journal
Magnetic fields are the primary driver of the plasma thermodynamics in the upper solar atmosphere, especially in the corona. However, magnetic field measurements in the solar corona are sporadic, thereby limiting us from the complete understanding of ...
Raveena Khan, Sarah E. Gibson, Roberto Casini, K. Nagaraju   +3 more
doaj   +1 more source

A Possible Mechanism for the “Late Phase” in Stellar White-light Flares

The Astrophysical Journal, 2023
M dwarf flares observed by the Transiting Exoplanet Survey Satellite (TESS) sometimes exhibit a peak-bump light-curve morphology, characterized by a secondary, gradual peak well after the main, impulsive peak.
Kai E. Yang, Xudong Sun, Graham S. Kerr, Hugh S. Hudson   +3 more
doaj   +1 more source

A burst model for line emission in the solar atmosphere. II - Coronal extreme ultraviolet lines

The Astrophysical Journal, 1992
We review the spectroscopic evidence for explosive events, hereafter referred to as bursts, occurring in solar coronal plasmas. Problems in the interpretation of extreme ultraviolet spectra from Mg-like ions, particularly Fe XV in solar flares can be obviated to certain extent if these ions are produced in an ionizing plasma, with the 3s3p 3 P levels ...
U. Feldman, J. M. Laming, P. Mandelbaum, W. H. Goldstein, A. Osterheld   +4 more
openaire   +1 more source

Nature‐Derived Chitosan Biopolymer: A Promising Candidate for Sustainable Electronics

Advanced Materials Technologies, EarlyView.
In the creation of environmentally friendly devices, nature‐derived chitosan biopolymer is a promising contender for sustainable electronic research. It can be utilized to create more ecologically friendly scalable gadgets and has a variety of uses in different active layers of electronics.
Joshua McDonald, Ali Nawaz, Amandeep Singh, Prashant Sonar   +3 more
wiley   +1 more source

Time-dependent Hinode/EIS Atlas of a Coronal Mass Ejection Containing Cool Material

The Astrophysical Journal
We report the first time-dependent spectral atlas of a coronal mass ejection (CME) observed by the Hinode/Extreme Ultraviolet Imaging Spectrometer (EIS).
E. M. Wraback, E. Landi, W. B. Manchester   +2 more
doaj   +1 more source