Results 11 to 20 of about 2,547,452 (302)

Hot Methane Spectra for Astrophysical Applications [PDF]

open access: yes, 2012
In this thesis line lists for methane (CH4) are presented. These line lists were obtained at high temperatures (300-1400 oC at 100 oC intervals) by recording infrared emission spectra with a tube furnace to heat to the required temperatures and a Fourier
Beale, Christopher
core   +6 more sources

Simulation of Fast-Reactor Spectra [PDF]

open access: yesJournal 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]

open access: yesPhysical 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   +6 more
openaire   +4 more sources

HSQC Spectra Simulation and Matching for Molecular Identification

open access: yesJournal 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   +5 more
openaire   +6 more sources

Computer simulation of the skin reflectance spectra [PDF]

open access: yesComputer 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]

open access: yesThe 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   +4 more
openaire   +2 more sources

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

open access: yes, 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

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

open access: yes, 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

Tracking X-Ray Source Movement in a Retracting Flux Tube

open access: yesThe Astrophysical Journal, 2023
Solar flares produce sources of localized, enhanced X-ray emission, thought to be due to the acceleration of nonthermal electrons and the transport of energy away from the reconnection site.
John Unverferth, Jeffrey W. Reep
doaj   +1 more source

Improved Huygens’ Principle for Metamaterial

open access: yesCrystals, 2023
In this paper, we propose a new method based on Huygens’ principle for calculations of transmission spectra with weak coupling and we call this method an improved Huygens’ principle.
Wei Huang   +5 more
doaj   +1 more source

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