Results 121 to 130 of about 5,097,999 (301)
Neutral beams at ROBIN with electrostatic ion separator
Nuclear FusionThe RF Operated Beam source in India for Negative ions (ROBIN), a single-driver RF-based negative hydrogen ion (H ^- ) source test bed located at the Institute for Plasma Research, Gandhinagar, has been upgraded to enable neutral beam operations. It is a
K. Pandya +14 more
doaj +1 more source
RF plasma source for heavy ion beam charge neutralization [PDF]
, 2002 Highly ionized plasmas are being used as a medium for charge neutralizing heavy ion beams in order to focus the ion beam to a small spot size. A radio frequency (RF) plasma source has been built at the Princeton Plasma Physics Laboratory (PPPL) in ...
Yu, Simon S. +6 more
core
, 2023 The negative ion sources currently used for Fusion applications produce tens of Amperes of Hydrogen or Deuterium ion current from a low-temperature (few eV) plasma.
Elio F +4 more
core
Advanced Science, EarlyView.Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas +6 more
wiley +1 more source
Precise micromotion compensation of a tilted ion chain
Frontiers in Quantum Science and TechnologyExcess micromotion can be a substantial source of errors in trapped-ion based quantum processors and clocks due to the sensitivity of the internal states of the ion to external fields and motion.
Craig W. Hogle +11 more
doaj +1 more source
ML Workflows for Screening Degradation‐Relevant Properties of Forever Chemicals
Advanced Science, EarlyView.The environmental persistence of per‐ and polyfluoroalkyl substances (PFAS) necessitates efficient remediation strategies. This study presents physics‐informed machine learning workflows that accurately predict critical degradation properties, including bond dissociation energies and polarizability.
Pranoy Ray +3 more
wiley +1 more source
Sustainable Materials Design With Multi‐Modal Artificial Intelligence
Advanced Science, EarlyView.Critical mineral scarcity, high embodied carbon, and persistent pollution from materials processing intensify the need for sustainable materials design. This review frames the problem as multi‐objective optimization under heterogeneous, high‐dimensional evidence and highlights multi‐modal AI as an enabling pathway.
Tianyi Xu +8 more
wiley +1 more source
Single event upset and mitigation technique in JLTFET based RF mixer
Results in EngineeringThis work deals with the study of single event effect (SEE) on RF mixer along with the mitigation technique. A 20 nm independent gate Junctionless Tunnel FET JLTFET (IGJLTFET) was first designed and based on its Id-Vg characteristics; RF mixer circuit ...
Aishwarya K, Lakshmi B
doaj +1 more source
Advanced Science, EarlyView.By overcoming the fixed‐path limitations of conventional machine learning, a heterogeneous graph neural network fundamentally reconstructs material data representation. Integrating variable processing sequences with intrinsic elemental features, this framework enables exploratory optimization across high‐dimensional spaces.
Jie Yin +12 more
wiley +1 more source
Results in PhysicsDual-frequency excitation of dielectric barrier discharge (DBD) plasma reactors, where the plasma is generated by a low-frequency (LF) source and modulated by a radio-frequency (RF) source, have been widely adopted in the low-pressure regime.
Z. Zhang +5 more
doaj +1 more source