Results 61 to 70 of about 21,142,602 (165)

General equation for directed Electromagnetic Pulse Propagation in 1D metamaterial: Projecting Operators Method

open access: yes, 2015
We consider a boundary problem for 1D electrodynamics modeling of a pulse propagation in a metamaterial medium. We build and apply projecting operators to a Maxwell system in time domain that allows to split the linear propagation problem to directed ...
Ampilogov, Dmitrii, Leble, Sergey
core   +1 more source

Conquering Metal–Organic Frameworks by Raman Scattering Techniques

open access: yesAdvanced Functional Materials, Volume 34, Issue 43, October 22, 2024.
Raman scattering, celebrated for its label‐free vibrational contrast, serves as an ideal means for exploring metal–organic frameworks (MOFs) through spectroscopic methods. Going beyond conventional spectroscopy, advanced Raman techniques empower in situ and in operando measurements with remarkable spatiotemporal precision.
Jonas Tittel   +2 more
wiley   +1 more source

Vibrational Frequencies of the 2p^2A^"_2 and 3d^2E^" States of the Triatomic Deuterium Molecule

open access: yes, 1997
We investigated the vibrational energies in the 2p^2A^"_2 and 3d^2E^" states of the triatomic deuterium molecule D_3. The experiments were performed using a fast neutral beam photoionization spectrometer recently developed at Freiburg.
Braun, M.   +3 more
core   +1 more source

Water hexamer: Self-consistent phonons versus reversible scaling versus replica exchange molecular dynamics

open access: yes, 2014
Classical free energies for the cage and prism isomers of water hexamer computed by the self- consistent phonons (SCP) method and reversible scaling (RS) method are presented for several flexible water potentials.
Brown, Sandra E.   +1 more
core  

First-order corrections to semiclassical Gaussian partition functions for clusters of atoms

open access: yes, 2011
Gaussian approximations to the Boltzmann operator have proven themselves in recent years as useful tools for the study of the thermodynamic properties of rare gas clusters. They are, however, not necessarily correct at very low temperatures.
Berne   +23 more
core   +1 more source

The hydrogen atom in an electric field: Closed-orbit theory with bifurcating orbits

open access: yes, 2002
Closed-orbit theory provides a general approach to the semiclassical description of photo-absorption spectra of arbitrary atoms in external fields, the simplest of which is the hydrogen atom in an electric field.
Abramowitz M   +27 more
core   +2 more sources

Sampling general distributions with quasi-regular grids: Application to the vibrational spectra calculations.

open access: yesJournal of Chemical Physics, 2019
We introduce a new method for sampling a general multidimensional distribution function Px using a quasiregular grid (QRG) of points xi (i = 1, …, N). This grid is constructed by minimizing a pairwise functional, ∑u(xi, xj) → min, with the short-range ...
S. Flynn, V. Mandelshtam
semanticscholar   +1 more source

Analysis of the low density lipoprotein receptor gene (LDLR) mutation spectrum in Russian familial hypercholesterolemia. [PDF]

open access: yesVavilovskii Zhurnal Genet Selektsii, 2022
Vasilyev VB   +3 more
europepmc   +1 more source

The certainty principle (review) [PDF]

open access: yes, 2006
The certainty principle (2005) allowed to conceptualize from the more fundamental grounds both the Heisenberg uncertainty principle (1927) and the Mandelshtam-Tamm relation (1945).
Arbatsky, D. A.
core   +1 more source

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