Results 91 to 100 of about 30,961 (212)
Abstract Background and Purpose Plasma glucocorticoids increase acutely after MI, thereafter tissue levels are amplified selectively within cells expressing 11‐ßhydroxysteroid dehydrogenase type 1 (11‐ßHSD1) that regenerates active glucocorticoids from circulating metabolites.
Sara Al Disi +19 more
wiley +1 more source
Discussing the physical meaning of the absorption feature at 2.1 keV in 4U 1538-52
High resolution X-ray spectroscopy is a powerful tool for studying the nature of the matter surrounding the neutron star in X-ray binaries and its interaction between the stellar wind and the compact object.
Bernabéu, G. +4 more
core +1 more source
Radiofrequency and 2.45 GHz electron cyclotron resonance H− volume production ion sources
The volume production of negative hydrogen ions ( ${{\rm{H}}}^{-}$ ) in plasma ion sources is based on dissociative electron attachment (DEA) to rovibrationally excited hydrogen molecules (H _2 ), which is a two-step process requiring both, hot electrons
O Tarvainen, S X Peng
doaj +1 more source
A Quality Control Assay to Access the HCl Molarity of Radionuclide Solutions
Strontium-82 is produced by proton activation of a rubidium chloride target in an accelerator or cyclotron and purified by ion exchange chromatography. The Strontrium-82 is used in Cardigen generators to produce Rubidium-82 for cardiac imaging.
Jonathan Fitzsimmons
doaj +1 more source
Wave‐Based Quantification of Ion Composition in the Earth's Magnetosphere‐Ionosphere‐Coupling Region
Abstract Ion composition critically determines the basic kinetic characteristics of plasma and affects energy transmission of the magnetosphere. However, it exhibits significant variations with altitude, latitude, local time, longitude, and also with geomagnetic and solar activity.
Zhijie Qin +4 more
wiley +1 more source
Recently, in a series of EAST discharges using deuterium neutral beam injection (NBI), tritium (T) ions were produced via deuterium–deuterium (D–D) fusion reactions, resulting in excited ion cyclotron emission (ICE) within the plasma core in H-mode ...
Huapeng Zhang +16 more
doaj +1 more source
Dissolved Black Carbon in North Cascades Snow, Meltwater and a Downstream River
Abstract Quantification of black carbon on snow in the Cascade Range is needed due to increasing wildfire intensity and frequency. Here, the benzenepolycarboxylic acid (BPCA) molecular method was used to measure dissolved black carbon (DBC) in snow, nearby rivers, streams, and supraglacial melt collected in 2022 and 2023 from Mount Baker and Mount ...
S. Vaux +4 more
wiley +1 more source
Precursor Wave Emission Enhanced by Weibel Instability in Relativistic Shocks
We investigated the precursor wave emission efficiency in magnetized purely perpendicular relativistic shocks in pair plasmas. We extended our previous study to include the dependence of upstream magnetic field orientations.
Amano, Takanobu +3 more
core +1 more source
In the 2023 experiment campaign, we measured ion cyclotron emission (ICE) signals on the Experimental Advanced Superconducting Tokamak (EAST), edge ICE excited by tritium ions.
Huapeng Zhang +17 more
doaj +1 more source
Experimental identification of ion cyclotron emission on HL-2A using YOLO neural network algorithm
Identification of magnetohydrodynamics (MHD) instabilities with neural networks has been extensively applied in the research of magnetically controlled fusion plasmas.
Jiahao Zhang +5 more
doaj +1 more source

