Results 21 to 30 of about 3,110,538 (301)

Phase separation in systems with charge ordering [PDF]

open access: yes, 2000
A simple model of charge ordering is considered. It is shown explicitly that at any deviation from half-filling ($n \neq 1/2$) the system is unstable with respect to phase separation into charge ordered regions with $n = 1/2$ and metallic regions with ...
Kagan, M. Yu.   +2 more
core   +4 more sources

Charge Patterned Sequences form Helical Structures through Charge Neutralization [PDF]

open access: yesBiophysical Journal, 2016
Many proteins with repeating blocks of oppositely charged residues form long single alpha helices (SAHs). The consensus sequence is a block of four Glu residues followed by a block of four Lys or Arg residues, (Glu4(Lys/Arg)4)n. The current working hypothesis is that SAHs are stabilized by i:i+4 salt bridges between opposite charges in consecutive ...
Harmon, Tyler S., Pappu, Rohit V.
openaire   +1 more source

Low-dimensional long-range topological structure in the QCD vacuum [PDF]

open access: yes, 2003
Lattice topological charge associated with Ginsparg-Wilson fermions exhibits generic topological stability over quantum ensemble of configurations contributing to the QCD path integral. Moreover, the underlying chiral symmetry leads to the suppression of
Cornwall   +19 more
core   +1 more source

Lightning Characteristics and Electric Charge Structure of a Hail-Producing Thunderstorm on the Eastern Qinghai–Tibetan Plateau

open access: yesAtmosphere, 2018
An isolated hail-producing thunderstorm that occurred on 20 August 2012, from the Composite Observing Experiment for Lightning project carried out in the Da Tong Region of Qinghai Province, China, was studied.
Xiangpeng Fan   +3 more
doaj   +1 more source

Symmetries in Constrained Systems [PDF]

open access: yes, 2004
We describe symmetry structure of a general singular theory (theory with constraints in the Hamiltonian formulation), and, in particular, we relate the structure of gauge transformations with the constraint structure.
Gitman, D. M., Tyutin, I. V.
core   +3 more sources

A Numerical Study of Aerosol Effects on Electrification with Different Intensity Thunderclouds

open access: yesAtmosphere, 2019
Numerical simulations are performed to investigate the effect of varying CCN (cloud condensation nuclei) concentration on dynamic, microphysics, electrification, and charge structure in weak, moderate, and severe thunderstorms.
Zheng Shi   +4 more
doaj   +1 more source

Low noise charge injection in the CCD22 [PDF]

open access: yes, 2004
The inclusion of a charge injection structure on a charge coupled device (CCD) allows for the mitigation of charge transfer loss which can be caused by radiation induced charge trapping defects.
Abbey, AF   +6 more
core   +1 more source

Structure of Strongly Charged Polyelectrolyte Solutions

open access: yesMacromolecules, 2006
Molecular dynamics simulation and recent theory are used to examine density correlations in semidilute solutions of highly charged, intrinsically flexible and hydrophilic polyelectrolytes in low salt. Quantitative comparison with no adjustable parameters is made with recent scattering and osmometry experiments.
Donley, James P., Heine, David R.
openaire   +2 more sources

Nonlinear charge transport mechanism in periodic and disordered DNA [PDF]

open access: yes, 2003
We study a model for polaron-like charge transport mechanism along DNA molecules with emphasis on the impact of parametrical and structural disorder. Our model Hamiltonian takes into account the coupling of the charge carrier to two different kind of ...
Agarwal, J.   +2 more
core   +2 more sources

Track-structure Simulations for Charged Particles [PDF]

open access: yesHealth Physics, 2012
Monte Carlo track-structure simulations provide a detailed and accurate picture of radiation transport of charged particles through condensed matter of biological interest. Liquid water serves as a surrogate for soft tissue and is used in most Monte Carlo track-structure codes.
openaire   +2 more sources

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