Results 1 to 10 of about 627 (154)

Gas chromatographic determination of the distribution coefficients in system “transformer oil — ionol — extractant” during ionol extraction with various volumes of extractant [PDF]

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2014
Gas chromatographic measurement of the maintenance of an additive ionol in the transformer oil, promoting reliable operation of the oil-filled electric equipment, is allowed to carry out with use of ethyl alcohol for extraction ionol from transformer ...
Сергій Володимирович Зайцев   +1 more
doaj   +6 more sources

Microbial Biotransformation of α-ionol [PDF]

open access: yesJournal of Chemical Research, 2018
Ionols are important flavour and fragrance compounds both in natural and synthetic aroma blends that are used in many daily products. α-Ionol has been converted for the first time to 3-oxo-α-ionone by microbial biotransformation using the plant pathogenic fungi Aspergillus niger NRRL 326 and Fusarium culmorum (freshly isolated) over 7 d at 25°C at 6.6 ...
Fatih Demirci   +2 more
exaly   +4 more sources

Sustainable Vineyard Management with On-Field UV-C Irradiation: Impacts of Supplementary Applications on Grape Composition and Secondary Metabolites [PDF]

open access: yesPlants
Research for sustainable viticulture practices has fostered interest in ultraviolet-C (UV-C) radiation as non-chemical tool for vineyard pathogen control; however, little information is available on their potential elicitation of berry metabolites.
Claudio D’Onofrio   +5 more
doaj   +2 more sources

Identification of QTLs linked to bioactive flavonoids and glycosides in the apricot fruit (Prunus armeniaca L.) [PDF]

open access: yesBMC Genomics
Apricots are highly valued for their nutritional and functional properties, largely due to their rich content of bioactive compounds, particularly flavonoids, phenolic acids, and glycosides.
Germán Ortuño-Hernández   +7 more
doaj   +2 more sources

Comparison of Volatile Compounds in Jingshan Green Tea Scented with Different Flowers Using GC-IMS and GC-MS Analyses [PDF]

open access: yesFoods
Scented green tea (Camellia sinensis) is a type of reprocessed green tea produced by scenting with flowers. To investigate the differences in the volatiles of scented green tea processed with four different flowers (Jasminum sambac, Osmanthus fragrans ...
Zhiwei Hou   +10 more
doaj   +2 more sources

Determination of the antioxidant additive “Ionol” in transformer oil by gas chromatographic method [PDF]

open access: yesE3S Web of Conferences, 2021
Transformer oil is widely used in power oil-filled electrical equipment, which is an insulating and diagnostic medium. During the operation of power transformers, its operational and dielectric properties deteriorate.
Duy Hung Nguyen   +2 more
doaj   +1 more source

Improving methods for monitoring bearing units of electric motors in reverse water supply systems of nuclear power plants

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2023
Ensuring the reliability and safety of nuclear power plants is an urgent task for the Ukrainian energy industry. Permanent circulation of mineral turbine oil is necessary for lubrication of friction surfaces in bearing units of electric motors of water ...
Cергій Володимирович Зайцев   +1 more
doaj   +5 more sources

Application of IR spectroscopy to control oxidation inhibitor (ionol) concentration in mineral transformer oils [PDF]

open access: yesE3S Web of Conferences, 2020
Mineral insulating oils used as dielectric and heat dissipating agent in high voltage oil-filled equipment are subject to oxidation. Oxidation results in the appearance of undesirable substances that reduce the electrical insulating properties of liquids.
Garifullin Marsel Sh.   +4 more
doaj   +1 more source

Determination of Three Glycosides in Tobacco Using Heart Cutting Rp/Rp Two Dimensional Liquid Chromatography Tandem Mass Spectrometry [PDF]

open access: yesZhipu Xuebao, 2021
A method for glycosides detection in tobacco leaves by heart cutting Rp/Rp two dimensional liquid chromatography tandem mass spectrometry was established.
CHEN Min   +6 more
doaj   +1 more source

Effect of Individual Sulfide on the Stability against Oxidation of Transformer Oil and Its Electrical Parameters [PDF]

open access: yesProblems of the Regional Energetics, 2021
This study is devoted to the improvement of the transformer oil quality, using a new inhibiting additive, since the extensively used inhibitory additive ionol is sensitive to organosulfur compounds of sulfur oils. From the earlier works, the organosulfur
Gainullina L.R.
doaj   +1 more source

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