Results 61 to 70 of about 1,232 (254)
HELIOSEISMIC INVESTIGATION OF EMERGING MAGNETIC FLUX IN THE SOLAR CONVECTION ZONE
The Astrophysical Journal, 2013 Helioseismology is capable of detecting signatures of emerging sunspot regions in the solar interior before they appear at the surface. Here we present measurements that show the rising motion of the acoustic travel-time perturbation signatures in the deep convection zone, and study the possible physical origin of these signatures using observational ...
Stathis Ilonidis +2 more
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A Coupled Model for the Emergence of Active Region Magnetic Flux into the Solar Corona [PDF]
The Astrophysical Journal, 2003 We present a set of numerical simulations that model the emergence of active region magnetic flux into an initially field-free model corona. We simulate the buoyant rise of twisted magnetic flux tubes initially positioned near the base of a stable stratified model convection zone and use the results of these calculations to drive a three-dimensional ...
W. P. Abbett, G. H. Fisher
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Advanced Materials Technologies, EarlyView.Aerosol Jet Printing (AJP) has emerged as a versatile additive manufacturing technique for high‐resolution, conformal, and multi‐material printing. This review highlights advances in printable materials, substrate compatibility, post‐processing, characterization, and process innovations, while critically discussing current challenges and future ...
Chandrachur Chatterjee +2 more
wiley +1 more source
Bright X-ray arcs and the emergence of solar magnetic flux
The Astrophysical Journal, 1977 The Skylab S-056 and S-082A experiments and ground-based magnetograms have been used to study the role of bright X-ray arcs and the emergence of solar magnetic flux in the McMath region 12476. The S-056 X-ray images show a system of one or sometimes two bright arcs within a diffuse emitting region.
G. A. Chapman, R. M. Broussard
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Turning Water Into a Tool: From Degradation Pathways to Functional Engineering in Halide Perovskites
Advanced Materials Technologies, EarlyView.Water exhibits a threshold‐dependent dual role in lead halide perovskites, acting either as a degradation trigger or as a powerful tool for defect passivation, recrystallization, and structural engineering. This review discusses how controlled water‐mediated interactions govern stability, dimensionality, and optoelectronic performance, providing ...
Raphaella T. S. Gonçalves +4 more
wiley +1 more source
Multithermal Jet Formation Triggered by Flux Emergence
The Astrophysical Journal Letters, 2023 Flux emergence is responsible for various solar eruptions. Combining observation and simulations, we investigate the influence of flux emergence at one footpoint of an arcade on coronal rain as well as induced eruptions.
Xiaohong Li, Rony Keppens, Yuhao Zhou
doaj +1 more source
Advanced Optical Materials, EarlyView.Metasurface shows selective solar–thermal energy conversion with high‐activity solar/laser‐driven chemistry. The breakthrough is co‐designing broadband FP‐cavity + plasmonic LSPR/SLR resonances in an ultra‐thin metamaterial so that it not only harvests the most efficient proportion of solar radiation but also suppresses mid and IR emissivity. Moreover,
Samira Mehrabi +4 more
wiley +1 more source
3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends
Advanced Robotics Research, EarlyView.Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu +5 more
wiley +1 more source
Atmospheric Heating Events Associated with Fine-scale Flux Emergence in Ephemeral Regions
The Astrophysical JournalCoronal heating has puzzled solar physicists for decades. The question of why the Sun’s upper atmosphere is significantly hotter than its lower atmosphere remains a key mystery.
Hanlin Yang, Jingxiu Wang, Chunlan Jin
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Magnetic Flux Emergence into the Solar Corona. III. The Role of Magnetic Helicity Conservation
The Astrophysical Journal, 2003 This paper treats the reconfiguration of a twisted magnetic field, from an initial two-flux system containing a current sheet to a minimum-energy state, under the conservation of total relative magnetic helicity. In the specific model presented, we assume that a fresh magnetic field of the opposite polarity has emerged into a corona containing a ...
M. Zhang, B. C. Low
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