Results 11 to 20 of about 9,732,619 (263)

Current density, current-density pathways, and molecular aromaticity [PDF]

open access: yes, 2021
46 pages, 20 figures, Chapter 5 in the book Aromaticity: Modern Computational Methods and ...
Sundholm Dage, Dimitrova Maria
openaire   +2 more sources

Understanding Current Density In Molecules Using Molecular Orbitals [PDF]

open access: yes, 2023
While the use of molecular orbitals (MOs) and their isosurfaces to explain physical phenomena in chemical systems are a time-honored tool, we show that the nodes are an equally important component for understanding the current density through single ...
Gemma, C. Solomon   +1 more
core   +2 more sources

Current density functional framework for spin–orbit coupling [PDF]

open access: yes, 2022
Relativistic two-component and four-component density functional calculations are carried out in a non-collinear formalism to describe spin-orbit interaction.
Ansgar, Pausch   +2 more
core   +2 more sources

Current densities in density-functional theory [PDF]

open access: yesPhysical Review A, 2013
It is well known that any given density rho(x)can be realized by a determinantal wave function for N particles. The question addressed here is whether any given density rho(x) and current density j(x) can be simultaneously realized by a (finite kinetic energy) determinantal wave function.
Lieb, Elliott H., Schrader, Robert
openaire   +2 more sources

The Oriented and Flux-Weighted Current Density Stagnation Graph of LiH [PDF]

open access: yes, 2022
A scheme is introduced to quantitatively analyze the magnetically induced molecular current density vector field J. After determining the set of zero points of J, which is called its stagnation graph (SG), the line integrals -1/mu_0 \int_li B.dl along ...
Raphael J F, Berger   +3 more
core   +1 more source

Impact of the current density on paramagnetic NMR properties [PDF]

open access: yes, 2022
Meta-generalized gradient approximations (meta-GGAs) and local hybrid functionals generally depend on the kinetic energy density τ. For magnetic properties, this necessitates generalizations to ensure gauge invariance.
Christof, Holzer   +3 more
core   +2 more sources

Revisiting density-functional theory of the total current density [PDF]

open access: yesJournal of Physics: Condensed Matter, 2021
Abstract Density-functional theory (DFT) requires an extra variable besides the electron density in order to properly incorporate magnetic-field effects. In a time-dependent setting, the gauge-invariant, total current density takes that role.
Andre Laestadius   +2 more
openaire   +5 more sources

FLEXIBLE CONTROL OF DENSITY CURRENT MIGRATION BY USING SLUICE GATE [PDF]

open access: yes, 2011
Controlling adverse density currents has been an important issue on water quality and ecosystems of brackish water regions. This study proposes to apply sluice gate for flexible control of density current migration in open channels.
赤堀, 良介   +2 more
core   +1 more source

When Current Does Not Follow Bonds: Current Density in Saturated Molecules [PDF]

open access: yes, 2019
The tools commonly used to understand structure-property relationships in molecular conductance, inter-atomic currents and conductance eigenchannels, generally give us a sense of familiarity, with the chemical bonding framework and ...
Gemma C., Solomon   +2 more
core   +2 more sources

A 3-dimensional mathematical model to study effects of geometrical parameters on performance of solid oxide fuel cell

open access: yesJournal of Electrochemical Science and Engineering, 2021
A 3D mathematical model is developed to study effects of various geometrical parameters such as cathode to anode thickness ratio, rib width, and channel width under various flow conditions, on the performance of solid oxide fuel cell (SOFC).
Vikalp Jha   +2 more
doaj   +1 more source

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