Results 21 to 30 of about 124,934 (265)

Physical Properties of Cu Doped ZnO Nanocrystiline Thin Films

open access: yesمجلة بغداد للعلوم, 2022
Thin films of ZnO nano crystalline doped with different concentrations (0, 6, 9, 12, and 18 )wt. % of copper were deposited on a glass substrate via pulsed laser deposition method (PLD).
Nada K. Abbas   +2 more
doaj   +1 more source

Sonochemical Synthesis of AgInS2 Quantum Dots and Characterisation [PDF]

open access: yesЖурнал нано- та електронної фізики, 2017
AgInS2 (Silver Indium Sulphide) quantum dots of size ∼ 1.4 nm have been prepared by sonochemical method using precursor complex. Dodecylamine has been used as capping agent. The Precursor complex, containing Silver, Indium metal ions and sulphur used for
B.B. Panda, R.K. Rana, B. Sharma
doaj   +1 more source

Enhanced characterization of SO2 plume height and column density using the second UV spectral band of TROPOMI [PDF]

open access: yesAtmospheric Measurement Techniques
Volcanic emissions of sulfur dioxide (SO2) affect the environment, climate, and society. Their detection and quantification rely extensively on remote sensing techniques, which are used to track SO2 and monitor volcanic activity worldwide. In particular,
L. Fabris   +10 more
doaj   +1 more source

UV-Vis spectroscopy of stardust [PDF]

open access: yesInternational Journal of Astrobiology, 2006
NASA's Stardust mission flew through the coma of comet Wild 2 in January 2004, capturing dust grains as it did so. The grains were returned safely to Earth in January 2006, and are in the process of being distributed to investigators. As members of the Spectroscopy Preliminary Examination Team, we are preparing to analyse Stardust grains.
Fernandes, C. D.   +3 more
openaire   +1 more source

Classification of red wines from controlled designation of origin by ultraviolet-visible and near-infrared spectral analysis [PDF]

open access: yesCiência e Técnica Vitivinícola, 2014
Spectroscopy has become one of the most attractive and commonly used methods of analysis in many agricultural products. Chemometrics combined with ultraviolet (UV), visible (VIS) and near-infrared (NIR) spectral analysis were evaluated to classify wines ...
Martelo-Vidal María J., Vázquez Manuel
doaj   +1 more source

Forensic examination of different textile fibres using UV- Vis spectroscopy [PDF]

open access: yesE3S Web of Conferences
Objective: The purpose of this study is to forensically examine different textile fibres using UV/visible spectroscopy. Methodology: Five different fibre types of ten different local brands have been analyzed using uv-vis spectroscopy.Each fibre was ...
Aditi, Sharma Spriha
doaj   +1 more source

Reliable Discrimination of Green Coffee Beans Species: A Comparison of UV-Vis-Based Determination of Caffeine and Chlorogenic Acid with Non-Targeted Near-Infrared Spectroscopy

open access: yesFoods, 2020
Species adulteration is a common problem in the coffee trade. Several attempts have been made to differentiate among species. However, finding an applicable methodology that would consider the various aspects of adulteration remains a challenge.
Adnan Adnan   +3 more
doaj   +1 more source

Luwak Coffee Classification Using UV-Vis Spectroscopy Data: Comparison of Linear Discriminant Analysis and Support Vector Machine Methods

open access: yesAceh International Journal of Science and Technology, 2018
UV-Vis spectroscopy has been used as a promising method for coffee quality evaluation including in authentication of several high-economic coffee types.
Diding Suhandy, Meinilwita Yulia
doaj   +1 more source

Green Synthesis of Gold and Silver Nanoparticles Using Averrhoa bilimbi Fruit Extract

open access: yesJournal of Nanotechnology, 2013
We report on rapid one-step green synthesis of gold and silver nanoparticles using fruit extract of Averrhoa bilimbi Linn. UV-Vis absorption spectroscopy was used to monitor the quantitative formation of gold and silver nanoparticles. The characteristics
R. S. Rimal Isaac   +2 more
doaj   +1 more source

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