Results 11 to 20 of about 251,815 (286)
Eurasian Journal of Physics and Functional Materials, 2021 This paper presents the experimental results on electron, ion temperatures and densities in a pulsed plasma accelerator. The values of electron densities and temperatures were computed using the methods of relative intensities of Hα and Hβ lines, Hβ ...
M. K. Dosbolayev +2 more
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On line spectral frequencies [PDF]
IEEE Signal Processing Letters, 2003 The commonly used line spectral frequencies form the roots of symmetric and antisymmetric polynomials constructed from a linear predictor. We provide a new, simpler proof that the symmetric and antisymmetric polynomials can be regarded as optimal constrained predictors that correspond to predicting from the low-pass and high-pass filtered signal ...
W. Bastiaan Kleijn +2 more
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Project of the Large Solar Telescope with mirror 3 m in diameter
Solar-Terrestrial Physics, 2020 One of the most important problems of modern solar physics is the observation of the small-scale structure of the solar atmosphere at various heights (including the chromosphere and corona) in different spectral lines.
Grigoryev V.M. +5 more
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“Structure of Spectral Lines” [PDF]
Nature, 1947 In Nature of August 23, p. 244, Dr. D. A. Jackson reviews my recent book on “High-Resolution Spectroscopy” (Methuen, 1947). After considerable hesitation and with much reluctance, I feel compelled to comment on several misrepresentations made by Dr. Jackson.
S, TOLANSKY, D A, JACKSON
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Results in Physics, 2023 In this work, we argue that the SERS technique allows distinguishing between drug-sensitive and drug-resistant strains on the level of resolution of individual mycobacteria.
Anastasia I. Lavrova +5 more
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Intensity and Polarization of Radiation Emerging from Rotating Accretion Disc with Increasing Height
Universe, 2020 We consider the radiation emission in continuum and spectral lines from rotating accretion disc with the progressive increasing height. It is known that for the plane accretion disc with homogeneous atmosphere the wave electric field E is perpendicular ...
Nikolai Silant’ev +3 more
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Stark Broadening of N VI Spectral Lines
Universe, 2023 Stark broadening parameters, line widths and shifts, for 15 N VI multiplets are calculated using semiclassical perturbation theory for temperatures from 50,000 K to 2,000,000 K, and perturber density of 1016 cm−3. As perturbers have been taken electrons,
Milan S. Dimitrijević +2 more
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FT-infrared spectroscopic studies of lymphoma, lymphoid and myeloid leukaemia cell lines [PDF]
, 2007 This paper presents a novel method to characterise spectral differences that distinguish leukaemia and lymphoma cell lines. This is based on objective spectral measurements of major cellular biochemical constituents and multivariate spectral ...
Babrah, Jaspreet +5 more
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The Magnetic Sensitivity of the (250–278 nm) Fe ii Polarization Spectrum
The Astrophysical Journal, 2023 This paper presents a theoretical investigation of the polarization and magnetic sensitivity of the near-ultraviolet (near-UV) solar spectral lines of Fe ii between 250 and 278 nm.
David Afonso Delgado +2 more
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Study on Spectral Interference in the Determination of Vanadium by ICP-OES
, 2020 Vanadium is an important scarce resource and strategic metal, and often coexists with a variety of complex metals in the form of secondary mineral phases in nature.
Zhang Yi +7 more
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