Results 31 to 40 of about 368,150 (312)

Autoxidation and photosensitized oxidation of methyl eicosapentaenoate: Secondary oxidation products. [PDF]

open access: yesAgricultural and Biological Chemistry, 1985
Methyl eicosapentaenoate (methyl 5, 8, 11, 14, 17-eicosapentaenoate) was subjected to autoxidation and methylene blue-sensitized photooxidation. The secondary oxidation products were separated, and characterized by gas chromatography-mass spectrometry.
YAMAUCHI, Ryo   +3 more
openaire   +2 more sources

A new oxidation flow reactor for measuring secondary aerosol formation of rapidly changing emission sources [PDF]

open access: yesAtmospheric Measurement Techniques, 2017
Oxidation flow reactors (OFRs) or environmental chambers can be used to estimate secondary aerosol formation potential of different emission sources. Emissions from anthropogenic sources, such as vehicles, often vary on short timescales.
P. Simonen   +8 more
doaj   +1 more source

Studies of Chamber Organic Aerosol using an Aerodyne High-Resolution Time-of-Flight Aerosol Mass Spectrometer [PDF]

open access: yes, 2011
Secondary organic aerosol (SOA) contributes a substantial fraction to total ambient particulate mass. SOA is a complex mixture of different organic species formed via many gas- and particle-phase reaction pathways. The Aerodyne aerosol mass spectrometer (
Chhabra, Puneet Singh
core   +1 more source

Formation of Secondary and Tertiary Volatile Compounds Resulting from the Lipid Oxidation of Rapeseed Oil

open access: yesFoods, 2021
The lipid oxidation of fats and oils leads to volatile organic compounds, having a decisive influence on the sensory quality of foods. To understand formation and degradation pathways and to evaluate the suitability of lipid-derived aldehydes as marker ...
Sandra Grebenteuch   +3 more
doaj   +1 more source

Ceria-Based Mixed Oxide Supported Nano-Gold as an Efficient and Durable Heterogeneous Catalyst for Oxidative Dehydrogenation of Amines to Imines Using Molecular Oxygen [PDF]

open access: yes, 2012
The present work is intended to determine the catalytic activity of Mixed Oxide supported gold for aerobic oxidative dehydrogenation of amines to imines using Ceria as a main constituent of the each support. The model catalysts Au/CeO2:TiO2 Au/CeO2:SiO2,
Sharma, Meena   +5 more
core   +1 more source

Atmospheric oxidation: Formation and aging of biogenic and traffic-related secondary aerosols [PDF]

open access: yes, 2018
Atmospheric aerosol particles affect the quality of life by influencing climate and by being a significant component of air pollution. Once a particle is released into or formed in the atmosphere, several processes begin to transform its physical and ...
Watne, Ågot Kirsten
core   +1 more source

Ways to improve the technology for producing axle steel grades

open access: yesЛитьë и металлургия
This article presents the results of efforts to improve the technology for producing continuously cast billets measuring 300×400 mm, intended for manufacturing railway axles.
O. P. Krasyuk   +2 more
doaj   +1 more source

Oxidation levels of North American over-the-counter n-3 (omega-3) supplements and the influence of supplement formulation and delivery form on evaluating oxidative safety

open access: yesJournal of Nutritional Science, 2015
The aim of the present study was to evaluate the oxidation status of North American n-3 (omega-3) PUFA nutritional supplements commercially available in Canada and evaluate the influence of product formulation and delivery form on oxidative safety.
Stefan A. Jackowski   +6 more
doaj   +1 more source

Secondary aerosol formation from photochemical aging of aircraft exhaust in a smog chamber [PDF]

open access: yesAtmospheric Chemistry and Physics, 2011
Field experiments were performed to investigate the effects of photo-oxidation on fine particle emissions from an in-use CFM56-2B gas turbine engine mounted on a KC-135 Stratotanker airframe.
M. A. Miracolo   +8 more
doaj   +1 more source

Time-Dependent Study of Inclusions in Bearing Steel Subjected to Rare Earth Treatment with Secondary Oxidation

open access: yesCrystals
Due to the strong reducibility and chemical activity of rare earths, the diffusion behavior and secondary oxidation of rare earths in the steel liquid will also have a significant impact on the modified products when rare earths are added to bearing ...
Weining Wang   +6 more
doaj   +1 more source

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