Results 281 to 290 of about 121,606 (300)

Identification of Lower Terpenoids from Gas-Chromatography-Mass Spectral Data by On-Line Computer Method

Journal of Chromatographic Science, 1979
It was found that the less intense ion peaks of the mass spectra of lower terpenes can play an important role in distinguishing compounds that have similar mass spectra. Two computer programs were developed that generate, from combined gas chromatographic—mass spectra data, F-1 weights (ANOVA) of mass ion peaks between 41 and 300.
Adams, R.P., Granat, M., Hogge, L.R., von Rudloff, E.   +3 more
openaire   +1 more source

On the identification of Fe ix and Ni xi lines from coronal spectral

Solar Physics, 1975
Identifications of coronal lines with transitions of Fe ix and Ni xi, as proposed by Wagner and House, and Svensson, Ekberg and Edlen, are checked by means of line intensity ratios, from observations obtained at the 1965 eclipse. All the suggestions of Svensson, Ekberg and Edlen are suitable.
openaire   +1 more source

On the use of perceptual Line Spectral pairs Frequencies and higher-order residual moments for Speaker Identification

International Journal of Biometrics, 2010
Conventional Speaker Identification (SI) systems utilise spectral features like Mel-Frequency Cepstral Coefficients (MFCC) or Perceptual Linear Prediction (PLP) as a frontend module. Line Spectral pairs Frequencies (LSF) are popular alternative representation of Linear Prediction Coefficients (LPC).
Md. Sahidullah, Sandipan Chakroborty, Goutam Saha 0001   +2 more
openaire   +1 more source

Comments on the identification of high-order spectral lines of donors in semiconductors in intermediate magnetic fields

Semiconductor Science and Technology, 1989
The magneto-optical spectrum of the shallow donors in n-GaAs is studied using a far-infrared laser at photon energies greater than the binding energy of the donors. The transitions from the (1s) ground state into the Landau levels are not observed but, instead, series of transitions from the ground state into donor states associated with the individual
C J Armistead, R A Stradling, Z Wasilewski   +2 more
openaire   +1 more source

Spectral line shape identification by using fractional derivative spectrometry

2004
Before it is difficult to say about a peak shape without conducting additional research. Conventional nonlinear fitting methods based on the OLS approach are unsuitable to unambiguously assign the overlapped peaks. This implies that a composite band can be decomposed into elementary components of a given shape with the same integral reconstruction ...
Kharintsev S., Salakhov M.
openaire   +2 more sources

AGD: Autonomous Gaussian Decomposition for Spectral Line Identification.

Proposed for presentation at the ZFSW Conference held August 9-9, 2021 in Albuquerque, NM., 2021
openaire   +1 more source

LIBS identification of lithology based on spectral lines of 7 main elements

SCIENTIA SINICA Physica, Mechanica & Astronomica, 2015
ShaoLong WANG, ZhiQuan KE, Yi XU, YangEn WANG   +3 more
openaire   +1 more source

Determining exciton coherence from the photoluminescence spectral line shape in poly(3-hexylthiophene) thin films

Journal of Chemical Physics, 2009
Frank C Spanò, Jenny Clark, CARLOS Silva   +2 more
exaly  

GOSAT-2009 methane spectral line list in the 5550–6236cm−1 range

Journal of Quantitative Spectroscopy and Radiative Transfer, 2010
Andrei V Nikitin, O M Lyulin, S N Mikhailenko   +2 more
exaly  

Specific Emitter Identification Based on Variational Mode Decomposition and Spectral Features in Single Hop and Relaying Scenarios

IEEE Transactions on Information Forensics and Security, 2019
Udit Satija, Barathram Ramkumar
exaly