Buscar
Mostrando ítems 1-10 de 2606
The influence of natural tocopherols during thermal oxidation of refined and partially hydrogenated soybean oils
(Inst Grasa Sus DerivadosSevilleEspanha, 2005)
NMR Relaxometry analysis of lubricant oils degradation
(IOP Publishing, 2005-09)
The present work was undertaken in order to investigate lubricant oil degradation at the molecular level. Ageing effects, as reflected on the proton spin-lattice relaxation rate (T −1 1 ) dispersion, were studied in two ...
Monitoring of engine oil aging by diffusion and low-field nuclear magnetic resonance relaxation
(Elsevier, 2019-04)
Time domain, also named lowfield nuclear magnetic resonance is used to monitor oil degradation by measuring relaxation and diffusion. As quality control of oils is indispensable to optimize oil change intervals while ...
Microbial degradation, cytotoxicity and antibacterial activity of polyurethanes based on modified castor oil and polycaprolactone
(Journal of Biomaterials Science, Polymer Edition, 2016-10-11)
The objective of this study was to assess the effects of type of polyol and concentration of polycaprolactone (PCL) in polyurethanes (PUs) on microbial degradability, cytotoxicity, biological properties and antibacterial ...
Formation of polymerization compounds during thermal oxidation of cottonseed oil, partially hydrogenated cottonseed oil and their blends
(Inst Grasa Sus DerivadosSevilleEspanha, 2006)
Monitoring lubricant oil degradation using field-cycling NMR relaxometry
(Taylor & Francis Ltd, 2019-04-30)
Proton fast field-cycling nuclear magnetic resonance (1 HFFC-NMR) was used to study the effect of thermal stress in mineral base oil. The base oil underwent controlled thermal degradation and its relaxometric response was ...
Changes in breaded chicken and oil degradation during discontinuous frying with cottonseed oil
(Soc Brasileira Ciencia Tecnologia AlimentosCampinasBrasil, 2012)
Quality traits and lipid composition of meat from Nellore young bulls fed with different oils either protected or unprotected from rumen degradation
(Elsevier B.V., 2012-01-01)
The qualitative characteristics, lipids and chemical composition of the meat of 35 Nellore young bulls were analyzed. These bulls had an average slaughter weight and fat thickness of 532.17 +/- 30.2 kg, and 7.00 mm, ...