Results 11 to 20 of about 2,681,308 (310)

Detailed simulations of sonoluminescence spectra

Journal of Physics B: Atomic, Molecular and Optical Physics, 2001
We present detailed simulations of the optical spectra emitted from an argon plasma whose conditions correspond to those thought to prevail within sonoluminescing bubbles. The model incorporates detailed atomic physics based on atomic data from the Opacity Project database, and includes bound-bound, bound-free and free-free transitions.
Burnett, P, Chambers, D, Heading, D, Machacek, A, Schnittker, M, Moss, W, Young, P, Rose, S, Lee, R, Wark, J   +9 more
openaire   +3 more sources

Observed Steep and Shallow Spectra, Narrow and Broadband Spectra, Multifrequency Simultaneous Spectra, and Statistical Fringe Spectra in Fast Radio Bursts: Various Faces of Intrinsic Quasi-periodic Spectra?

The Astrophysical Journal
Through analysis, modelings, and simulations, we show that if the spectra of fast radio bursts (FRBs) are intrinsically quasi-periodic, and likely produced by coherent curvature radiation from quasi-periodic structured bunches, then the observed steep ...
Shu-Qing Zhong, Wen-Jin Xie, Jia-Hong Gu
doaj   +2 more sources

Simulation of Fast-Reactor Spectra [PDF]

Journal of Nuclear Science and Technology, 1973
To simulate fast-reactor spectra, a simple shape function f(u; u/sub m/ ,B) with spectral parameters u/sub m/ and B has been derived by expanding the gross shape of the spectrnm into a series of Hermite functions. The parameters are determined by the moment method.
NISHIHARA, Hiroshi, OHTA, Masao
openaire   +2 more sources

Simulations and spectra of water in CO matrices [PDF]

Physical Chemistry Chemical Physics, 2017
Models to simulate water molecules embedded in CO matrices allow unbound water monomers to be identified from the observed infrared spectra.
Escribano, Rafael, Artacho, Emilio, Kouchi, Akira, Hama, Tetusya, Kimura, Yuki, Hidaka, Hiroshi, Watanabe, Naoki   +6 more
openaire   +4 more sources

HSQC Spectra Simulation and Matching for Molecular Identification

Journal of Chemical Information and Modeling, 2023
In the pursuit of improved compound identification and database search tasks, this study explores Heteronuclear Single Quantum Coherence (HSQC) spectra simulation and matching methodologies. HSQC spectra serve as unique molecular fingerprints, enabling a valuable balance of data collection time and information richness.
Martin Priessner, Richard J. Lewis, Magnus J. Johansson, Jonathan M. Goodman, Jon Paul Janet, Anna Tomberg   +5 more
openaire   +6 more sources

Computer simulation of the skin reflectance spectra [PDF]

Computer Methods and Programs in Biomedicine, 2003
The reflectance spectra of the human skin in visible and near-infrared (NIR) spectral region have been calculated using the Monte Carlo technique, and the specular and internal reflection on the medium surface is taken into account. Skin is represented as a complex inhomogeneous multi-layered highly scattering and absorbing medium. The model takes into
Meglinski, I. V., Matcher, S. J.
openaire   +3 more sources

Simulations of Structure and Vibrational Spectra of Deoxyoctanucleotides [PDF]

The Journal of Physical Chemistry B, 2005
Combined molecular dynamics and ab initio computations were applied for analysis of infrared absorption and vibrational circular dichroism spectra of deoxyoctanucleotides. Unlike for previous idealized models, molecular geometries of these shorter DNA fragments in solutions were obtained as dynamic averages from simulations in a periodic water box ...
Petr, Bour, Valery, Andrushchenko, Martin, Kabelác, Vanitha, Maharaj, Hal, Wieser   +4 more
openaire   +2 more sources

Simulations of proton transfer processes using reactive force fields [PDF]

, 2006
Within this thesis we presented the development of reactive force fields that are ca- pable to describe the dynamics of proton and hydrogen atom transfer processes.
Lammers, Sven
core   +1 more source

Critical balance in magnetohydrodynamic, rotating and stratified turbulence : towards a universal scaling conjecture [PDF]

, 2011
It is proposed that critical balance - a scale-by-scale balance between the linear propagation and nonlinear interaction time scales - can be used as a universal scaling conjecture for determining the spectra of strong turbulence in anisotropic wave ...
Nazarenko, Sergey, SERGEI V. NAZARENKO, ALEXANDER A. SCHEKOCHIHIN, Schekochihin, Alexander A.   +3 more
core   +1 more source

Objective-prism and slit-spectra redshifts in a study of the distribution of galaxies [PDF]

, 2014
A thorough and detailed investigation into the accuracy, reliability and consistency of the objective-prism redshift technique with changes in plate material, measuring machine and reduction techniques has been undertaken.
Parker, Quentin Andrew
core   +2 more sources