Results 1 to 10 of about 5,257,093 (276)

A Graph-Based Method for Molecular Spectral Line Identification

Intelligent Computing
To address the high computational cost associated with molecular identification in spectral lines, we propose a graph-based feature learning framework to determine the molecular composition of spectral lines that incorporates rule-driven and node-level ...
Yijun Pan, Tianwei Zhang, Ruqiao An, Baoquan Gao, Huaxi Chen, Donghui Quan   +5 more
doaj   +1 more source

Determination of Tin by Spectral Lines with Different Sensitivity of Alternating Current Arc Emission Spectroscopy

Yankuang ceshi, 2013
Based on the advantages of simultaneous determination of multiple elements by using different spectral lines of Alternating Current Arc Emission Spectroscopy, samples with a large range of Sn contents were simultaneously determined by the major spectral ...
YU Yu, HE Zhen-yun, MAO Zhen-cai, WEI Yi, YUAN Xiu-ru, LIU Jiang-bin   +5 more
doaj  

Bayesian Model Reconstruction Based on Spectral Line Observations

The Astrophysical Journal Supplement Series
Spectral line observations encode a wealth of information. A key challenge, therefore, lies in the interpretation of these observations in terms of models to derive the physical and chemical properties of the astronomical environments from which they ...
Frederik De Ceuster, Thomas Ceulemans, Leen Decin, Taïssa Danilovich, Jeremy Yates   +4 more
doaj   +1 more source

Persistent Homology for Parameter-free Radio Spectral Line Decomposition

The Astronomical Journal
Modern radio surveys routinely deliver millions of spectra, making automated Gaussian decomposition a critical bottleneck in extracting physical insight about the interstellar medium.
Carlos Vera-Ciro
doaj   +1 more source

PyEMILI: A New Generation Computer-aided Spectral Line Identifier

The Astrophysical Journal Supplement Series
Deep high-dispersion spectroscopy of Galactic photoionized gaseous nebulae, mainly planetary nebulae and H ii regions, has revealed numerous emission lines.
Zhijun Tu, Xuan Fang, Robert Williams, Jifeng Liu   +3 more
doaj   +1 more source

Doppler Broadening of Spectral Line Shapes in Relativistic Plasmas

Atoms, 2018
In this work, we report some relativistic effects on the spectral line broadening. In particular, we give a new Doppler broadening in extra hot plasmas that takes into account the possible high velocity of the emitters.
Mohammed Tayeb Meftah, Hadda Gossa, Kamel Ahmed Touati, Keltoum Chenini, Amel Naam   +4 more
doaj   +1 more source

Three-dimensional representation of triple spectral line imaging data as an option for noncontact skin diagnostics. [PDF]

J Biomed Opt, 2022
Ošina I, Spigulis J, Kuzmina I, Dambite L, Berzina A.   +4 more
europepmc   +1 more source

Molecules in Cool Stars: The A2Π − X2Σ+ and the B2Σ+ − X2Σ+ Band Systems of CaCl

The Astrophysical Journal
Cool red giant stars exhibit absorption bands of calcium monochloride (CaCl) in the optical region. In this work, the bands of CaCl corresponding to the A ^2 Π − X ^2 Σ ^+ transition with ${v}^{{\prime} }\leqslant $ 4 and v ″ ≤ 4, and B ^2 Σ ^+ − X ^2 Σ ^
Léo Lavy, Peter F. Bernath
doaj   +1 more source

A new index for detection of submerged aquatic plants under variable quality water: an extension of the soil-line concept

GIScience & Remote Sensing
Submersed aquatic plant (SAP) communities are important determinants of estuarine and lacustrine food web structure, nutrient cycling, and water quality.
Shruti Khanna, Erin L. Hestir, Joaquim Bellvert, Jennifer D. Boyer, Kristen D. Shapiro, Susan L. Ustin   +5 more
doaj   +1 more source

Skin chromophore mapping by smartphone RGB camera under spectral band and spectral line illumination. [PDF]

J Biomed Opt, 2022
Kuzmina I, Oshina I, Dambite L, Lukinsone V, Maslobojeva A, Berzina A, Spigulis J.   +6 more
europepmc   +1 more source