Results 41 to 50 of about 484,828 (297)
Effective lifetime of minority carriers in black silicon nano-textured by cones and pyramids
Semiconductor Physics, Quantum Electronics & Optoelectronics, 2017 We calculated the dependence of effective lifetime of minority carriers in black silicon nano-textured by cones and pyramids on the diameter of the cone base, the side of the pyramid base, the height of cone and pyramid.
V.F. Onyshchenko +4 more
doaj +1 more source
LATTICE PHONON LIFETIME CALCULATIONS
Le Journal de Physique Colloques, 1981 It is shown that phonon lifetimes can be calculated using finite periodicities and discrete frequencies without going completely to the limit of infinite periodicities or quasi-continuous frequency distributions. In applying the Golden Rule equation in time-dependent perturbation theory there is a time interval over which the transition rate is very ...
openaire +2 more sources
Tau acetylation at K331 has limited impact on tau pathology in vivo
FEBS Letters, EarlyView.We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto +3 more
wiley +1 more source
Theory of Luminescent Emission in Nanocrystal ZnS:Mn with an Extra Electron
, 2003 We consider the effect of an extra electron injected into a doped quantum dot $ZnS:Mn^{2+}$. The Coulomb interaction and the exchange interaction between the extra electron and the states of the Mn ion will mix the wavefunctions, split the impurity ...
A.A. Bol +18 more
core +1 more source
Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Influence of Quality of Mounting Process of RF Transistors on Their Thermal Parameters and Lifetime
Applied Sciences, 2022 The paper presents the results of investigations illustrating the influence of imperfections in the soldering process on thermal properties of transistors operating in RF (Radio Frequency) systems.
Krzysztof Górecki +2 more
doaj +1 more source
Time-dependent optical linewidth in fluctuating environments: Stochastic models
, 2001 Time-resolved optical lineshapes are calculated using a second-order inhomogeneous cumulant expansion. The calculation shows that in the inhomogeneous limit the optical spectra are determined solely by two-time correlation functions.
Diezemann, Gregor
core +2 more sources
Radiative quantum efficiency in an InAs/AlSb intersubband transition [PDF]
, 2006 The quantum efficiency of an electroluminescent intersubband emitter based on InAs/AlSb has been measured as a function of the magnetic field up to 20T.
A. Leuliet +11 more
core +5 more sources
Positron lifetime calculations for defects in Zn
Journal of Physics: Condensed Matter, 2000 Comment: 9 pages, 4 figures, 2 ...
Campillo, J. M. +2 more
openaire +2 more sources