Results 261 to 270 of about 2,681,308 (310)
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Simulation of dynamic bubble spectra in tissues
IEEE Transactions on Biomedical Engineering, 2001Decompression sickness (DCS) is the result of bubble formation in the body due to excessive/rapid reduction in the ambient pressure. Existing models relate the decompression stress either to the inert gas load or to the size of a single bubble in a tissue compartment. This paper presents a model that uses the gas exchange equations combined with bubble
Egi, SALİH MURAT +3 more
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Quantitative Analysis of Reflection Spectra: Evaluation of Simulated Reflection Spectra
1985Reflection photometry is a useful tool to study in vivo kinetic changes of hemoglobin, myoglobin, and the cytochromes. The problem of quantifying reflection spectra is still not satisfactorily solved. To compare the validity and the limits of different methods to analyze optical spectra (dual wavelength evaluation, reference spectra method, two-flux ...
J, Hoffmann, D W, Lübbers
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A simulation method for Doppler spectra
1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333), 2002To evaluate the performance of modern modulation techniques suited for time-variant multipath propagation, it is necessary to simulate such channels by computer models. A time-variant multipath channel distorts a transmission link by frequency and time dispersion. While the simulation of time dispersion can be accomplished by a finite tapped delay line,
Wetzker, Gunnar +2 more
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Tetrahedron Computer Methodology, 1989
Abstract A program for simulation of 13 C NMR spectra is described and included. The simulation of the spectrum of a given compound is based on its structure represented by a connection table and semiempirical equations which represent the sum of contributions of functional groups to chemical shifts of the spectrum.
Livija Lah, Marjan Tusar, Jure Zupan
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Abstract A program for simulation of 13 C NMR spectra is described and included. The simulation of the spectrum of a given compound is based on its structure represented by a connection table and semiempirical equations which represent the sum of contributions of functional groups to chemical shifts of the spectrum.
Livija Lah, Marjan Tusar, Jure Zupan
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Simulation of NMR Powder Spectra
Physica Status Solidi (a), 1992The basic principles and the main functions of a computer program are described which simulates solid-state NMR powder spectra when quadrupolar interaction and/or chemical shift anisotropy dominate the line broadening. Several application examples are given for various nuclei in solid materials.
Amoureux, J. +3 more
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Spectra simulation of the argon plasma
Physica Scripta, 2011In this work, a simulation calculation scheme based on a collisional radiation model and employing detailed energy levels was developed under the framework of corona approximation for low-density plasmas. Atomic data such as energy levels, radiative transition rates, Auger rates, collision excitation and ionization cross sections needed for the ...
Z Geng, K Yao, Y Zou
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Theory and Simulation of Chemical Relaxation Spectra
1977Chemical relaxation methods proved to be important tools for the study of kinetics in solution and are widely used for the investigation of inorganic, organic, and biochemical reaction mechanisms, and the characterization of their elementary steps. The principle of these methods is that the reaction is initiated by a small perturbation of an external ...
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AIP Conference Proceedings, 2012
We review our recent achievements in developing quantum chemistry tools for simulating and interpreting vibrational resonant Raman spectra. Applications to rhodamine 6G illustrates the performance of the method and highlights ways of improvement.
Champagne, Benoît, Guthmuller, J.
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We review our recent achievements in developing quantum chemistry tools for simulating and interpreting vibrational resonant Raman spectra. Applications to rhodamine 6G illustrates the performance of the method and highlights ways of improvement.
Champagne, Benoît, Guthmuller, J.
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Measurement of Rotational Temperature by Simulated Molecular Spectra
Spectroscopy Letters, 1996Abstract The measurement of temperature of heavy particles in a thermal plasma is based on the comparison of experimental rotational spectrum obtained by optical emission Spectroscopy and synthetic spectra calculated for different temperatures. The calculation principle of the synthetic spectra is detailed as well as the temperature accuracy obtained ...
Coitout, Hubert, Faure, Géraldine
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Computer simulation of NMR spectra
Journal of Chemical Education, 198340. A new PASCAL program has been written to provide for the interactive analysis and display of the high resolution NMR spectra.
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