Results 101 to 110 of about 2,767,562 (223)

FexiEmission Lines in a High‐Resolution Extreme‐Ultraviolet Active Region Spectrum Obtained by the Solar Extreme Ultraviolet Research Telescope and Spectrograph

The Astrophysical Journal, 2005
New calculations of radiative rates and electron impact excitation cross sections for Fe XI are used to derive emission-line intensity ratios involving 3s23p4-3s23p33d transitions in the 180-223 A wavelength range. These ratios are subsequently compared with observations of a solar active region obtained during the 1995 flight of the Solar Extreme ...
Keenan, Francis, Aggarwal, Kanti, Ryans, Robert, Milligan, Ryan, Bloomfield, Shaun, Brosius, J.W., Davila, J.M., Thomas, R.J.   +7 more
openaire   +2 more sources

Bridging Performance and Fate: A Framework for Sustainable, Composite‐Based Flexible Electronic Systems

Advanced Electronic Materials, EarlyView.
Composite‐based flexible electronics integrate biodegradable polymers, conductive networks, and multilayer device architectures to balance electrical performance, mechanical durability, and controlled degradation. Interfacial engineering and encapsulation regulate transport stability and operational lifetime, while programmed disassembly enables ...
Sayam, Sangho Cho
wiley   +1 more source

The Extreme-ultraviolet Precursors and Postcursors of Solar Flares

The Astrophysical Journal
EUV brightenings are small-scale magnetic reconnection events that consistently appear before and after solar flares. However, it is not well understood how EUV precursors might foreshadow flares and what the physical connection is between the EUV ...
Larisza D. Krista
doaj   +1 more source

Extreme‐Ultraviolet Emission Lines of Sxin Solar Flare and Active Region Spectra

The Astrophysical Journal, 2004
R-matrix calculations of electron impact excitation rates in N-like S X are used to derive theoretical emission-line intensity ratios involving 2s22p3-2s2p4 transitions in the 189-265 A wavelength range. A comparison of these with observational data for solar flares and active regions, obtained with the Naval Research Laboratory's S082A spectrograph on
F. P. Keenan, A. C. Katsiyannis, K. G. Widing   +2 more
openaire   +1 more source

Eco‐Friendly Laser‐Induced Graphene/Perovskite Hybrids for Eco‐Friendly Photodetectors

Advanced Electronic Materials, EarlyView.
A sustainable paper‐based photodetector was developed by combining laser‐induced graphene (LIG) with MAPbI3 perovskite. Compared with pure LIG devices, the hybrid photodetector exhibited nearly 10‐fold higher responsivity and 7‐fold greater detectivity while maintaining stable performance after 1000 bending cycles, demonstrating its potential for ...
Ya‐Yun Huang, Wei‐Hua Hsu, Bo‐Hua Chiou, Wei‐Chen Tu   +3 more
wiley   +1 more source

Solar cycle dependence of scaling in solar wind fluctuations [PDF]

, 2008
In this review we collate recent results for the statistical scaling properties of fluctuations in the solar wind with a view to synthesizing two descriptions: that of evolving MHD turbulence and that of a scaling signature of coronal origin that ...
B. Hnat, Hnat, B., Kiyani, K., S. C. Chapman, K. Kiyani, Chapman, S. C., Chapman, Sandra C.   +6 more
core   +2 more sources

Smart Exploration of Perovskite Photovoltaics: From AI Driven Discovery to Autonomous Laboratories

Advanced Energy Materials, EarlyView.
In this review, we summarize the fundamentals of AI in automated materials science, and review AI applications in perovskite solar cells. Then, we sum up recent progress in AI‐guided manufacturing optimization, and highlight AI‐driven high‐throughput and autonomous laboratories.
Wenning Chen, Zheyu Zhang, Kelvian T. Mularso, Bonghyun Jo, Hyun Suk Jung   +4 more
wiley   +1 more source

Localized Heterogeneous Nucleation for Vapor‐Assisted Sequential Deposition of Metal Halide Perovskites

Advanced Energy Materials, EarlyView.
A compact, nonporous, and highly crystalline layered inorganic precursor formed by thermal evaporation inherently restricts its conversion into the halide perovskite phase during vapor‐assisted hybrid two‐step deposition. Introducing localized heterogeneous nucleation sites during vapor deposition enables deliberate modulation of the inorganic layer's ...
Sung‐Eun Kim, Seung‐Gu Choi, Seo‐Ryoung Lee, Do‐Kyoung Lee, Tim Kodalle, Byung Soon Kim, Jae‐Hwan Kim, Keonwoo Park, Jaehyeong Lee, Carolin M. Sutter‐Fella, Jin‐Wook Lee   +10 more
wiley   +1 more source

Evolution of Flare Ribbon Bead-like Structures in a Solar Flare

The Astrophysical Journal Letters
We present fast-cadence and high-resolution observations of flare ribbons from the Solar Orbiter Extreme Ultraviolet Imager (EUI). Utilizing the short-exposure observations from the EUI High Resolution Imager in the extreme-ultraviolet, we find small ...
Ryan J. French, Maria D. Kazachenko, David Berghmans, Elke D’Huys, Marie Dominique, Ritesh Patel, Dana-Camelia Talpeanu, Cole A. Tamburri, Rahul Yadav   +8 more
doaj   +1 more source

Maximum Stability Point Tracking Stabilizes Wide‐Bandgap Mixed‐Halide Perovskite Solar Cells

Advanced Energy Materials, EarlyView.
A maximum stability point tracking (MSPT) strategy suppresses charge trapping‐induced halide segregation, enabling wide‐bandgap perovskite solar cells to achieve significantly enhanced operational stability compared to conventional maximum power point tracking (MPPT).
Seongheon Kim, Geon Kim, Taeeon Kim, Kwang Seop Shin, Jongchan Kim, Mansoo Choi, Yun Seog Lee, Namyoung Ahn   +7 more
wiley   +1 more source