Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Hengameh Omrani"'
Publikováno v:
Tribology International. 94:279-287
Synthetic lubricant oils based on a polyol ester base stock and containing amine-based antioxidants are characterised by fluorescence excitation–emission-matrix (EEM) spectroscopy. The main spectral features are attributed to antioxidants and are q
The fluorescence of antioxidant additives in lubricant oil was used as an indicator of oxidative stability of the oil. It was found that the decrease in fluorescence intensities of phenyl-α-napthylamine, its dimer, and another unidentified antioxida
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8be533d6cd910206f25b6e1fa3dbe55b
https://doi.org/10.1016/j.aca.2013.10.019
https://doi.org/10.1016/j.aca.2013.10.019
Publikováno v:
Imaging and Applied Optics 2015.
Spectral features representing remaining antioxidants are obtained by fluorescence excitation-emission matrix spectroscopy and are compared to the current ASTM standard of remaining useful lifetime evaluation routine (RULER); a linear sweep voltammet
Publikováno v:
The Journal of Chemical Thermodynamics. 36:245-252
The vapor pressures of lithium halide solutions in ethanol have been determined in the range of concentration from (0.01 to 2.0) mol · kg −1 at 298.15 K. The activity of solvent was obtained directly and the osmotic coefficients of solutions were
Publikováno v:
2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC.
Fibre-optic probes play an increasing role in the investigation of a variety of condensed media, for example in the food industry, in medicine and in the oil industry. Using single fibres or fibre bundles fluorescence can be excited and collected eve
Publikováno v:
Imaging and Applied Optics.
Fluorescence excitation-emission matrix spectroscopy is used to characterize lubricant quality. We use parallel factor (PARAFAC) analysis, to correlate spectral features to antioxidant concentration and lubricant age.
Publikováno v:
Imaging and Applied Optics Technical Papers.
We combined two fiber-optic techniques to permit real-time monitoring of machinery fluids. Excitation emission matrix spectroscopy and fiber-loop cavity ring-down absorption spectroscopy were used to characterize jet fuel and aero-turbine lubrication
The dynamic range of fiber-optic fluorescent probes such as single fibers and fiber bundles is calculated for strongly absorbing samples, such as process liquids, foodstuffs, and lubricants. The model assumes an excitation beam profile based on a Lam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a13f72934832e7ea21ec17ff6cc92be4
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/35649
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/35649
Publikováno v:
The Analyst. 137:2782
Excitation emission matrix (EEM) and cavity ring-down (CRD) spectral signatures have been used to detect and quantitatively assess contamination of jet fuels with aero-turbine lubricating oil. The EEM spectrometer has been fiber-coupled to permit in