Results 51 to 60 of about 56,422 (219)

Fast-ion redistribution and loss due to edge perturbations in the ASDEX Upgrade, DIII-D and KSTAR tokamaks [PDF]

open access: yes, 2013
The impact of edge localized modes (ELMs) and externally applied resonant and non-resonant magnetic perturbations (MPs) on fast-ion confinement/transport have been investigated in the ASDEX Upgrade (AUG), DIII-D and KSTAR tokamaks.
Asunta, O.   +30 more
core   +1 more source

Heat Load Mitigation Studies in the W7‐X Stellarator Experiment

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT During the experiments at the stellarator Wendelstein 7‐X (W7‐X) with fully water‐cooled plasma‐facing components (PFC), including carbon‐fiber composite (CFC) divertor targets with a thermal load capability of 10 MW/m2, high performance was achieved.
Dirk Naujoks   +11 more
wiley   +1 more source

The impact of the COVID-19 pandemic on chronic lymphocytic thyroiditis: A single-center retrospective analysis

open access: yesJournal of Infection and Public Health
Background: COVID-19 pandemic profoundly impacted global health, yet its effects on autoimmune thyroid diseases, particularly chronic lymphocytic thyroiditis (CLT), remain unclear.
Dong Hyun Seo   +6 more
doaj   +1 more source

Constructing Interface‐Enhanced S‐Heterojunctions Via Surface Functionalization Strategies to Improve Photocatalytic Hydrogen Production Efficiency in Inorganic/Organic Composite Systems

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A surface in situ growth strategy was employed to fabricate a COF/TiO2 S‐scheme heterojunction with enhanced interfacial forces. This enhanced interfacial heterojunction significantly improved photocatalytic hydrogen production capacity. S‐scheme heterojunctions play a crucial role in enhancing charge‐carrier separation efficiency and redox capability.
Xinhui Jiang   +7 more
wiley   +1 more source

Effect of adding acetic acid when performing magnifying endoscopy with narrow band imaging for diagnosis of Barrett’s esophageal adenocarcinoma

open access: yesEndoscopy International Open, 2022
Background and study aims Magnifying endoscopy with narrow band imaging (M-NBI) was developed to diagnose Barrett’s esophageal adenocarcinoma (BEA); however, this method remains challenging for inexperienced endoscopists.
Yohei Ikenoyama   +10 more
doaj   +1 more source

Understanding Substance Use and Suicide Risk Among LGBTQ+ College Students Post‐COVID‐19

open access: yesJournal of Addictions &Offender Counseling, EarlyView.
ABSTRACT This study examines the reported frequency of substance use, levels of suicide risk, and their relationships among LGBTQ+ college students (N = 192) following the COVID‐19 pandemic. Participants most commonly reported alcohol and marijuana use, and least commonly reported unprescribed prescription opioid or heroin use.
Afroze N. Shaikh   +6 more
wiley   +1 more source

Experimental investigation of the radial structure of energetic particle driven modes

open access: yes, 2016
Alfv\'en eigenmodes (AEs) and energetic particle modes (EPMs) are often excited by energetic particles (EPs) in tokamak plasmas. One of the main open questions concerning EP driven instabilities is the non-linear evolution of the mode structure.
Geiger, B.   +10 more
core   +1 more source

Taming the Non Abelian Born-Infeld Action [PDF]

open access: yes, 1998
We show how to reduce the non abelian Born-Infeld action describing the interaction of two D-particles to the sum of elliptic integrals depending on simple kinematic invariants.
ALEXEY S. KOSHELEV   +3 more
core   +2 more sources

Sampling Biases in Daily Average Temperatures From Greenland Climate Records

open access: yesInternational Journal of Climatology, EarlyView.
Biases are introduced in the calculation of daily average temperatures due to uneven sampling times for the investigated weather station network in Greenland. The figure shows the network, an example of a daily temperature cycle with daily averages based on all or only two observations and an overview of how the number of observations per day changes ...
Dina Rapp   +4 more
wiley   +1 more source

2D Quantum Gravity Coupled to Renormalizable Matter Fields

open access: yes, 1993
We consider two-dimensional quantum gravity coupled to matter fields which are renormalizable, but not conformal invariant. Questions concerning the $\b$ function and the effective action are addressed, and the effective action and the dressed ...
Ambjorn, Jan, Ghoroku, Kazuo
core   +1 more source

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