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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 ...
Improved method for the determination of wax esters in vegetable oils
(Wiley VCH Verlag, 2012-11)
In this work a modified International Olive Council (IOC) method for wax determination involving a double-adsorbent layer of silica gel and silver nitrate-impregnated silica gel is presented (SN method). Column chromatography ...
Continuous Synthesis and in Situ Monitoring of Biodiesel Production in Different Microfluidic Devices
(Amer Chemical SocWashingtonEUA, 2012)
Utilização do monitoramento seletivo de íons como ferramenta para a detecção de adulterações em óleos de copaíbaSelective ion monitoring as a tool for detecting adulterated copaiba oil
(Fundação Oswaldo Cruz. Instituto de Tecnologia em Fármacos. Centro de Inovação em Biodiversidade e Saúde, 2017)
Classification of petroleum well drilling operations using Support Vector Machine (SVM)
(2007-12-01)
During the petroleum well drilling operation many mechanical and hydraulic parameters are monitored by an instrumentation system installed in the rig called a mud-logging system. These sensors, distributed in the rig, ...
Classification of petroleum well drilling operations using Support Vector Machine (SVM)
(2007-12-01)
During the petroleum well drilling operation many mechanical and hydraulic parameters are monitored by an instrumentation system installed in the rig called a mud-logging system. These sensors, distributed in the rig, ...
Water-assisted Flow of Heavy Oil in a Vertical Pipe: Pilot-scale Experiments
(WALTER DE GRUYTER & COBERLIN, 2012)
The use of the core-annular flow pattern, where a thin fluid surrounds a very viscous one, has been suggested as an attractive artificial-lift method for heavy oils in the current Brazilian ultra-deepwater production ...
Oxidative stress in Nile tilapia (Oreochromis niloticus) and armored catfish (Pterygoplichthys anisitsi) exposed to diesel oil
(Springer, 2011-09-01)
Considering that diesel oil is one of the most common aquatic contaminants, we compare the oxidative stress between two species of fish with different habitats (Pterygoplichthys anisitsi, benthic and Oreochromis niloticus, ...