Results 1 to 10 of about 1,274,676 (322)
Superfast Line Spectral Estimation [PDF]
16 pages, 7 figures, accepted for IEEE Transactions on Signal ...
Thomas Lundgaard Hansen+2 more
openaire +5 more sources
Triple Spectral Line Imaging of Whole-Body Human Skin: Equipment, Image Processing, and Clinical Data [PDF]
Multispectral imaging can provide objective quantitative data on various clinical pathologies, e.g., abnormal content of bio-substances in human skin.
Janis Spigulis+5 more
doaj +2 more sources
Discrete time model of self-oscillations with spectral line widening
An algorithm for generating quasi-harmonic self-oscillations with a uniformly widened spectral line is presented. The algorithm is based on the equation of motion of the Thomson-type DT-oscillator, which introduced a random effect in the form of band ...
Valery V. Zaitsev+2 more
doaj +1 more source
Spectral Line VLBI Studies Using the ngEHT
Spectroscopy in the mm/sub-mm wavelength range is a powerful tool to study the gaseous medium in various astrophysical environments. The next generation Event Horizon Telescope (ngEHT) equipped with a wide-bandwidth backend system has great potential for
Dong-Jin Kim, Vincent Fish
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S-type Stars: Line List for the A2Π–X2Σ+ Band System of LaO
LaO bands are found in the spectra of cool S-type stars. The bands of the A ^2 Π–X ^2 Σ ^+ transition with $v^{\prime} \leqslant 3$ and v ″ ≤ 4 are rotationally analyzed, providing spectroscopic constants for the A ^2 Π state.
P. F. Bernath+2 more
doaj +1 more source
Using high-resolution spectra of Ni ii recorded using Fourier transform (FT) spectroscopy of continuous, nickel–helium hollow cathode discharge sources in the region 143–5555 nm (1800–70,000 cm ^−1 , the analysis of 1016 Ni ii lines confirmed and ...
Christian P. Clear+4 more
doaj +1 more source
Spectral line extraction based on ant-colony algorithm
A spectral-line-extraction algorithm based on the ant-colony algorithm is proposed to address the difficulty of extracting spectral lines in low signal-to-noise ratio conditions, and the problem that results from the optimal path algorithm falls into ...
Yusheng Cheng+4 more
doaj +1 more source
Review of Rydberg Spectral Line Formation in Plasmas
The present review is dedicated to the problem of an array of transitions between highly-excited atomic levels. Hydrogen atoms and hydrogen-like ions in plasmas are considered here. The presented methods focus on calculation of spectral line shapes. Fast
Andrey Yu. Letunov, Valery S. Lisitsa
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Signal processing of flutter flight test data enables verification of aircraft flutter design, and the signal from a flutter flight test excited by atmospheric turbulence is a particularly important form of the flutter test.
Shiqiang Duan, Hua Zheng
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Optical coherence tomography (OCT) is a widely used non-invasive biomedical imaging modality that can rapidly provide volumetric images of samples. Here, we present a deep learning-based image reconstruction framework that can generate swept-source OCT ...
Yijie Zhang+7 more
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