Results 21 to 30 of about 10,603 (209)

THE NEW SPECTROPHOTOMETRIC STAR CATALOGUE

open access: yesOdessa Astronomical Publications, 2017
The new spectral energy distributions Eλ for 360 stars in wavelength region from λ  330 to  λ 725 nm are given. The observations for "relatively-absolute" stellar spectrophotometry were obtained at high-altitude astronomical station “Terskol” of Odessa ...
N. S. Komarov   +18 more
doaj   +1 more source

Chemical Composition of White Wines Produced from Different Grape Varieties and Wine Regions in Slovakia

open access: yesApplied Sciences, 2021
In this work, chemical parameters such as sugar (glucose and fructose) content, organic acid (total acids, malic and tartaric acids), total phenolic content and the antioxidant activity of 12 white wines (chardonnay, pinot blanc and pinot gris) from ...
Silvia Jakabová   +7 more
doaj   +1 more source

Infrared array imaging and spectrophotometry of the nuclear region of the 'hot-spot' galaxy NGC 2903

open access: yesThe Astrophysical Journal, 1988
Previous studies of the hot-spot galaxy NGC 2903 at a variety of wavelengths have shown that considerable star formation is occurring within the complex hot-spot structures in this galaxy's nuclear region. A K-band (2.2 microns) image of the galaxy's nuclear region has been obtained with an infrared CCD and compared to V-band (0.55 micron) and 1-micron
D. A. Simons   +5 more
openaire   +1 more source

Emprego do Algoritmo Busca Tabu na determinação de principios ativos em fármacos

open access: yesRevista Produção Online, 2003
A new methodology of analysis for the quantification of antihipertensive drugs is provided in this work, using tabu search optimization with infrared spectroscopy by diffuse reflectance ...
Pedro Henrique de Almeida Konzen   +4 more
doaj   +1 more source

A study of low surface brightness spiral galaxies. II Optical surface photometry, infrared photometry, and H II region spectrophotometry

open access: yesThe Astrophysical Journal Supplement Series, 1983
Presentation d'un ensemble important d'observations photometriques et spectroscopiques obtenues pour un echantillon de galaxies spirales de faible brillance de surface (FBS).
W. Romanishin, K. M. Strom, S. E. Strom
openaire   +1 more source

Utility of near infrared spectrophotometry in mesenteric ischemia: An experimental study

open access: yes, 2018
Kalkan, Asim/0000-0002-5800-0201This study investigated the effectiveness of near infrared (NIR) spectrophotometry for measuring abdominal saturation in a rat model of induced mesenteric ischemia.
Yavaşi, Özcan   +6 more
core   +1 more source

Quantitative analysis of neodymium, uranium, and palladium in nitric acid solution by reflection absorption spectrophotometry [PDF]

open access: yes, 2013
Quantitative analysis of Nd, U, or Pd in 3 mol dm[−3] (M) HNO3 was performed by reflection absorption spectrophotometry at ultraviolet–visible–near-infrared (UV/Vis/NIR) region.
Fujii, Toshiyuki   +4 more
core   +1 more source

Calibration of Ultraviolet, Mid-infrared, and Radio Star Formation Rate Indicators

open access: yes, 2020
We present calibrations for star formation rate (SFR) indicators in the ultraviolet, mid-infrared, and radio-continuum bands, including one of the first direct calibrations of 150 MHz as an SFR indicator.
Kennicutt, Robert C   +10 more
core   +2 more sources

L-cysteine modified silver nanoparticles for selective and sensitive colorimetric detection of vitamin B1 in food and water samples

open access: yesHeliyon, 2020
The use of L-cysteine modified silver nanoparticles (Cys-capped AgNPs) as a colorimetric probe for determination of vitamin B1 (thiamine) is described in the present work.
Beeta Rani Khalkho   +6 more
doaj   +1 more source

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

open access: yesAdvanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim   +6 more
wiley   +1 more source

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