Results 11 to 20 of about 332,106 (256)

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

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

Protein-mediated dethreading of a biotin-functionalised pseudorotaxane [PDF]

open access: yes, 2014
In this article, we describe the synthesis of new biotin-functionalised naphthalene derivatives 3 and 4 and their complexation behaviour with avidin and neutravidin using a range of analytical techniques.
Caldwell, S.T.   +11 more
core   +3 more sources

Margarine products quality monitoring using reflectance UV-VIS-SWNIR spectroscopy [PDF]

open access: yes, 2008
Margarine is a term that can indicate any of a wide range of butter substitutes. Due to the great diversity of the raw material, margarine end-product quality characteristics are expected to be highly diversified.
Antó, Rui C. Martins, Vitor V. Lopes
core   +2 more sources

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

Electronic Spectroscopy of Isolated DNA Polyanions [PDF]

open access: yes, 2018
In solution, UV-vis spectroscopy is often used to investigate structural changes in biomolecules (i.e., nucleic acids), owing to changes in the environment of their chromophores (i.e., the nucleobases).
Daly, Steven   +3 more
core   +3 more sources

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

Synthesis of La0.6 Sr0.4MnO3 nanoparticles using microwave irradiation and investigation of its photocatalytic activity [PDF]

open access: yesشیمی کاربردی روز, 2020
In this paper nanoparticles, La0.6Sr0.4MnO3 via microwave radiation method is provided. The structural, magnetic, optical and photocatalyst properties by X-ray diffraction (XRD), Transmission electron microscope(TEM), Fourier transform infrared ...
Atieh Ramezan Zade Noshabadi   +1 more
doaj   +1 more source

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