Results 71 to 80 of about 164,436 (341)

The Behaviors of Ionospheric Scintillations Around Different Types of Nightside Auroral Boundaries Seen at the Chinese Yellow River Station, Svalbard

Frontiers in Astronomy and Space Sciences, 2018
Dynamical nightside auroral structures are often observed by the all sky imagers (ASI) at the Chinese Yellow River Station (CYRS) at Ny-Ålesund, Svalbard, located in the polar cap near poleward edge of the nightside auroral oval.
Shishir Priyadarshi, Qing-He Zhang, Yuzhang Ma, Zanyang Xing, Ze-Jun Hu, Guozhu Li   +5 more
doaj   +1 more source

Postoperative Stress Accelerates Atherosclerosis Through Inflammatory Remodeling of the HDL Proteome and Impaired Reverse Cholesterol Transport

Advanced Science, EarlyView.
The study shows that noncardiac surgical inflammation rapidly disrupts HDL function and cholesterol efflux in mice and human patients. Impaired reverse cholesterol transport after surgery drives rapid lipid accumulation, NETosis, and apoptosis within atherosclerotic plaques.
Dominique M. Boucher, Victoria Lorant, Valerie Rochon, Abigail Carter, Cameron Stotts, My‐Anh Nguyen, Thomas Laval, Christina Emerton, Nathan Joyce, Nysa Vinayak, Marlena Scaffidi, David Cook, Katey J. Rayner, Rebecca C. Auer, Scott M. Gordon, Mireille I. Ouimet   +15 more
wiley   +1 more source

Quantifying Additive Manufacturing Vapor Plumes Using Laser‐Induced Breakdown Spectroscopy, Synchrotron X‐Ray Radiography and Simulations

Advanced Science, EarlyView.
This study presents a novel in situ laser‐induced breakdown spectroscopy system for monitoring metal vapors produced by the intense laser‐metal interactions in laser powder bed fusion additive manufacturing and laser welding. The insights from this new technique reveal changes in alloy compositions and provide the first in situ validation of multi ...
Anna C. M. Getley, Samy Hocine, Junji Shinjo, Chinnapat Panwisawas, Marta Majkut, Alexander Rack, Peter D. Lee, Michael Towrie, Chu Lun Alex Leung   +8 more
wiley   +1 more source

Scintillation in the Arctic during the May 2024 Mother’s Day storm

Journal of Space Weather and Space Climate
The geomagnetic storm that started on May 10th 2024, often referred to as the “Mother’s Day” or “Gannon” storm, was the strongest storm for decades,with polar lights visible across significant parts of the globe.
Jacobsen Knut Stanley, Beeck Sarah Schultz, Koskimaa Petri, Juusola Liisa, Watson Chris, Weygand James Michael, Durgonics Tibor   +6 more
doaj   +1 more source

Fluorinated Carnitine Derivatives as Tools to Visualise Carnitine Transport and Metabolism

Advanced Science, EarlyView.
Fluorinated carnitines, fluoromethyl carnitine (FMC) and [18F]fluoromethyl carnitine ([18F]FMC), are synthesised and established as powerful probes to interrogate carnitine biology. The multimodal detection facilitated by fluorine labelling, including 19F NMR, mass spectrometry, and positron emission tomography imaging, allowed for visualisation of ...
Richard S. Edwards, Ella‐May Hards, Sofia N. dos Santos, Hannah E. Greenwood, Madeleine E. George, Andrea Emanuelli, Muhammet Tanc, Thomas R. Eykyn, Timothy H. Witney   +8 more
wiley   +1 more source

Experiment to demonstrate separation of Cherenkov and scintillation signals [PDF]

, 2016
Author(s): Caravaca, J; Descamps, FB; Land, BJ; Wallig, J; Yeh, M; Orebi Gann, GD | Abstract: © 2017 American Physical Society. The ability to separately identify the Cherenkov and scintillation light components produced in scintillating mediums holds ...
J. Caravaca, F. Descamps, B. Land, J. Wallig, M. Yeh, G. O. Gann   +5 more
semanticscholar   +1 more source

Imperfection in Semiconductors Leading to High Performance Devices

Advanced Science, EarlyView.
Crystalline perfection is typically pursued in semiconductors to enhance device performance. However, through modeling and experimental work, we show that defects can be strategically employed in a specific detection regime to increase sensitivity to extreme values. GaN diodes are demonstrated to effectively detect high‐energy proton beams at fluxes as
Jean‐Yves Duboz, Matilde Siviero, Lucas Lesourd, Eric Frayssinet, Sebastien Chenot, Petter Hofverberg, Sullivan Marafico, Marie Vidal, Maxime Hugues   +8 more
wiley   +1 more source

Optically‐Coupled X‐Ray Computed Laminography System for High‐Speed Inspection of Lithium‐Ion Batteries

Advanced Science, EarlyView.
This study presents an optically coupled X‐ray computed laminography system for high‐speed inspection of lithium‐ion batteries. A scintillator serving as a virtual detector decouples spatial resolution from the X‐ray focal spot size, enabling defect detection even with large‐spot, high‐power X‐ray tubes.
Jaeyoung Im, Jun Heo, Seunguk Cheon, Jichan Kim, Sung Oh Cho   +4 more
wiley   +1 more source

Accuracy assessment of Precise Point Positioning with multi-constellation GNSS data under ionospheric scintillation effects

, 2018
GPS and GLONASS are currently the Global Navigation Satellite Systems (GNSS) with full 16 operational capacity. The integration of GPS, GLONASS and future GNSS constellations can 17 provide better accuracy and more reliability in geodetic positioning, in
H. Marques, H. Marques, M. Aquino, S. V. Veettil, J. Monico   +4 more
semanticscholar   +1 more source

A method for scintillation characterization using geodetic receivers operating at 1 Hz

Journal of Geodesy, 2017
Ionospheric scintillation produces strong disruptive effects on global navigation satellite system (GNSS) signals, ranging from degrading performances to rendering these signals useless for accurate navigation. The current paper presents a novel approach
J. Juan, À. Aragón‐Àngel, J. Sanz, G. González‐Casado, A. Rovira‐Garcia   +4 more
semanticscholar   +1 more source