Results 1 to 10 of about 1,312,433 (296)
Stark-Zeeman Broadening of Spectral Line Shapes in Magnetized Plasmas [PDF]
Atoms, 2020 In this work, we studied the Lyman-alpha line in the presence of a magnetic field, such as the ones found at the edge of tokamaks. The emphasis is on the contribution of the motional Stark effect on line broadening, which may have comparable effects to ...
Kamel Ahmed Touati +2 more
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Design of Optical System for Ultra-Large Range Line-Sweep Spectral Confocal Displacement Sensor [PDF]
SensorsThe spectrum confocal displacement sensor is an innovative type of photoelectric sensor. The non-contact advantages of this method include the capacity to obtain highly accurate measurements without inflicting any harm as well as the ability to determine
Weiguang Yang +5 more
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Discrete time model of self-oscillations with spectral line widening
Физика волновых процессов и радиотехнические системы, 2022 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
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Spectral Line VLBI Studies Using the ngEHT
Galaxies, 2023 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
The Astrophysical Journal, 2023 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
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The Astrophysical Journal Supplement Series, 2023 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
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Spectral line extraction based on ant-colony algorithm
EURASIP Journal on Advances in Signal Processing, 2021 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
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Review of Rydberg Spectral Line Formation in Plasmas
Atoms, 2023 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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Journal of Low Frequency Noise, Vibration and Active Control, 2023 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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Light: Science & Applications, 2021 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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