Results 41 to 50 of about 1,294,516 (291)
Results in PhysicsThis study investigates the impact of charge trapping and diffusion on the electrical characteristics of gallium nitride (GaN) metal–insulator-semiconductor high electron mobility transistors (MIS-HEMTs) with single layer and bilayer of gate insulator ...
YeonSil Yang +4 more
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Transient non-confining potentials for speeding up a single ion heat pump
New Journal of Physics, 2018 We propose speeding up a single ion heat pump based on a tapered ion trap. If a trapped ion is excited in an oscillatory motion axially the radial degrees of freedom are cyclically expanded and compressed such that heat can be pumped between two ...
E Torrontegui +3 more
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Nuclear Materials and Energy, 2019 ITER-grade tungsten (W) specimens were exposed to similar deuterium (D) plasma condition (ion flux density of 6.0 × 1021 D m − 2s−1, D ion fluence of 5.0 × 1025 D m − 2) at the surface temperature of 623 K.
M. Shimada, C.N. Taylor
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Chemical stress in a largely deformed electrode: Effects of trapping lithium
iScience, 2023 Summary: Lithium trapping, which is associated with the immobilization of lithium and is one of key factors contributing to structural degradation of lithium-ion batteries during electrochemical cycling, can exacerbate mechanical stress and ultimately ...
Yong Li +4 more
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Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
FEBS Letters, EarlyView.Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley +1 more source
, 2009 Optical trapping of particles has become a powerful non-mechanical and nondestructive technique for precise particle positioning. The manipulation of particles in the evanescent field of a channel waveguide potentially allows for sorting and trapping of ...
Mohamad Shahimin, Mukhzeer
core +1 more source
Molecular Dynamics of Lithium Ion Transport in a Model Solid Electrolyte Interphase
Scientific Reports, 2018 Li+ transport within a solid electrolyte interphase (SEI) in lithium ion batteries has challenged molecular dynamics (MD) studies due to limited compositional control of that layer.
Ajay Muralidharan +3 more
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Surface or bulk He existence effect on deuterium retention in Fe ion damaged W
Nuclear Materials and Energy, 2018 To evaluate Helium (He) effect on hydrogen isotope retention in tungsten (W), He+ was introduced into W bulk by 201 – 1000 keV He+, or W surface by 3 keV He+ for 6 MeV Fe ion damaged W at room temperature.
Yasuhisa Oya +13 more
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Ion trapping and cathode bombardment by trapped ions in DC photoguns [PDF]
2007 IEEE Particle Accelerator Conference (PAC), 2007 Ion back bombardment is believed to be a main cause of degradation of quantum efficiency of photocathodes in fixed-voltage photoguns. Ions produced in collisions of the electron beam with residual gas in the cathode-anode gap are accelerated towards the cathode and bombard the cathode surface, reducing its quantum efficiency.
openaire +3 more sources