Results 251 to 260 of about 6,236,563 (298)

The shape of broad-line profiles in active galactic nuclei

Astronomy and Astrophysics, 2013
Aims. We present a study of the broad optical/UV emission line profiles in active galactic nuclei (AGN) to get information on the dominant velocity components (turbulence, rotation, etc.) in the central broad-line region (BLR). Methods.
M Zetzl
exaly   +2 more sources

Molecular line profiles of collapsing gas clouds [PDF]

Monthly Notices of the Royal Astronomical Society, 2009
Emission-line profiles of the tracer molecule H2CO 140 GHz transition from gravitational core collapsing clouds in the dynamic process of forming protostars are calculated, using a simple ray-tracing radiative transfermodel.
Yang Gao, Kinwah Wu, Yu-Qing Lou
exaly   +1 more source

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Line Profiles in Symbiotic Stars

Astrophysics and Space Science, 1986
High resolution profiles of permitted and forbidden lines in symbiotic stars are described, with particular reference to the broad wings. An interpretation of the data in terms of an optically thin accretion disc around a hot subdwarf is presented.
B. Louise Webster, L. H. Taaffe, A. J. Kalnajs   +2 more
openaire   +1 more source

Line profile-based fingerprint matching

2016 International Workshop on Computational Intelligence (IWCI), 2016
Traditional fingerprint matching algorithms primarily focus on minutiae points on fingertip surface. In this paper, a novel approach is proposed for fingerprint matching that is based on ridge and valley characteristics of fingerprints. At first, the input fingerprint image is normalized and the registration point of that particular fingerprint is ...
Hafsa Moontari Ali, Sonia Corraya
openaire   +1 more source

Line-profile measurement of xerographic copy

Applied Optics, 1978
An algorithm is presented which permits easy and rapid characterization of lines typically observed in xerographic copy. The outputs of the algorithm are line edge width, line width, and peak density. Auxiliary outputs are line darkness and spatial frequency content.
F R, Ruckdeschel, C H, Stephan
openaire   +2 more sources

Modeling of Geometric Variations for Line-Profiles

Volume 5: 37th Design Automation Conference, Parts A and B, 2011
The geometric variations in a tolerance-zone can be modeled with hypothetical point-spaces called Tolerance-Maps (T-Maps) for purposes of automating the assignment of tolerances during design. The objective of this paper is to extend this model to represent tolerances on line-profiles.
Joseph K. Davidson, Jami J. Shah
openaire   +2 more sources

Protein profile of the HeLa cell line

Journal of Chromatography A, 2004
HeLa cells are widely used for all kinds of in vitro studies in biochemistry, biology and medicine. Knowledge on protein expression is limited and no comprehensive study on the proteome of this cell type has been reported so far. We applied proteomics technologies to analyze the proteins of the HeLa cell line.
Michael, Fountoulakis, George, Tsangaris, Ji-eun, Oh, Antony, Maris, Gert, Lubec   +4 more
openaire   +2 more sources