Essays about: "spectral determination"

Showing result 16 - 20 of 23 essays containing the words spectral determination.

  1. 16. Determination of fossil share in combustion of waste : Development of a novel method using NIR spectroscopy to predict the content of plastics in RDF-material

    University essay from Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Author : Christian Dahl; [2018]
    Keywords : NIR; Near infra-red; spectroscopy; chemometrics; waste material; fossil share;

    Abstract : Incineration of waste materials has become a common way to handle a worldwide increase of produced waste materials. The problem with waste as fuel is that the material is not homogeneous and include a mixture of fossils and renewables. READ MORE

  3. 17. Near-Infrared Spectral Measurements and Multivariate Analysis for Predicting Glass Contamination of Boiler Fuel

    University essay from Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Author : Olivia Winn; Kiran Thekkemadathil Sivaram; [2017]
    Keywords : NIRS; glass detection; food waste; biomass; PLS; SNV; Savitzky-Golay;

    Abstract : This degree project investigates how glass contamination in refuse-derived fuel for a fluidised bed boiler can be detected using near-infrared spectroscopy. It is motivated by the potential to reduce greenhouse gas emissions by replacing fossil fuels with refuse-derived fuel. READ MORE

  4. 18. Determining the effective temperature of cool stars from near-infrared spectra

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Author : Henrik Rhodin; [2015]
    Keywords : Physics and Astronomy;

    Abstract : Context. Effective temperature is one of the fundamental stellar parameters. A traditional spectroscopic way to determine it is from optical spectra using excitation balance of Fe-lines. READ MORE

  5. 19. Study of the Optical Properties of sp2-Hybridized Boron Nitride

    University essay from Linköpings universitet/Tillämpad optik

    Author : Eduardo Antunez de Mayolo; [2014]
    Keywords : Spectroscopic ellipsometry; boron nitride; optical properties; materials characterization; III-V nitride semiconductors; cathodoluminescence; electron microscopy; Raman spectroscopy;

    Abstract : Nitride-based semiconductor materials make it possible to fabricate optoelectronic devices that operate in the whole electromagnetic range, since the band gaps of these compounds can be modified by doping. Among these materials, the sp2-hybridized boron nitride has properties that make it a potential candidate for integration in devices operating in the short-wavelength limit, under harsh environment conditions, due to the strength of the B-N bond. READ MORE

  6. 20. Finding a method for simplified biomass measurements on Sahelian grasslands

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Elise Palm; [2013]
    Keywords : Geography; Physical geography; biomass; grasslands; Sahel; digital camera images; LAI; Earth and Environmental Sciences;

    Abstract : Traditional measurements for determination of aboveground biomass (AGB) are widely used in ecological studies. However, they are labor demanding and time consuming, why this study performed on a grassland in Senegal has focused on finding a simplified AGB estimation method that could be applied on larger areas in the Sahel. READ MORE