Global ETD Search
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Showing 1 to 7 of 7 for “"Optical signature"”.
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Spectroscopic measurements and modeling of carbonaceous particle combustion in a shock tube
Carbonaceous nanoparticle (CNP) combustion shapes optical signatures and heat release in detonation-relevant multiphase flows, yet quantitative constraints on particle temperature, sublimation rates, reaction kinetics, and wavelength-dependent optical properties remain limited under short-duration, …
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The Application of Laser Technology for Railroad Top of Rail (TOR) Friction Modifier Detection and Measurements
… examination of the application and accuracy of optical sensors for the purpose of determining rail lubricity of top-of-rail friction modifier is investigated in this research. A literature review of optical sensors as they relate to detecting thin layers is presented, as well as a literature …
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Physical phenomena of thin surface layers
… Thin films can be used to influence the optical signature of a material and are widely used in nature to produce vibrant, pure, iridescent colours. Here the optical properties of the tropical plant Selaginella willdenowii are explored. The bright blue colouration is seen to arise from a …
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A satellite view of the space-time variability of phytoplankton biomass in the Mediterranean Sea
… and using the most comprehensive in situ bio-optical dataset over the MED basin. This exercise led to the development of an ad hoc regional ocean colour algorithm, which has then been implemented as standard algorithm within the operational satellite data processing chain at the Group for …
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Advanced photoanodes for photoassisted water electrolysis
… UV-vis spectroscopy displayed a pronounced optical signature corresponding to the existence of such deep levels. These results highlight the importance of carefully controlling photoanode processing conditions, even when operating within the material's extrinsic dopant regime, and more …
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Graphene and graphane functionalization using hydrogen and nitrogen electronic optical and vibrational signatures
… band gap for microelectronic applications. Optical and vibrational spectra are calculated as a means of characterization. Calculations performed using DFT and Quantum Espresso.
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Liquid Crystal-Based Biosensors for the Detection of Bile Acids
… of the LC at the interface, providing an optical signature for the simple and rapid detection of bile acids. The adsorption of bile acids on the interface was found to follow Langmuir-Freundlich isotherm. The adsorption kinetics of different bile acids is compared. We find that both the …