Sökning: "chemometrics"

Visar resultat 1 - 5 av 12 uppsatser innehållade ordet chemometrics.

  1. 1. Correcting biological infrared spectroscopy data for atmospheric gases and Mie scattering

    Master-uppsats, Lunds universitet/Beräkningsbiologi och biologisk fysik - Genomgår omorganisation

    Författare :Stéphan Pissot; [2020]
    Nyckelord :FTIR; spectroscopy; chemometrics; infrared absorption microscopy; atmospheric correction; scattering correction; Physics and Astronomy;

    Sammanfattning : Infrared absorption microscopy is a powerful chemometric tool with a wide variety of applications. It is, however, subject to considerable disturbances from atmospheric gases and scattering effects. LÄS MER

  3. 2. Evaluation of Homogeneity in Drug Seizures Using Near-Infrared (NIR) Hyperspectral Imaging and Principal Component Analysis (PCA)

    Kandidat-uppsats, Linköpings universitet/Kemi

    Författare :Olle Strindlund; [2020]
    Nyckelord :Homogeneity; drug seizures; pharmaceuticals; NIR hyperspectral imaging; chemometrics; PCA;

    Sammanfattning : The selection of a representative sample is a delicate problem when drug seizures comprised of large number of units arrive at the Swedish National Forensic Centre (NFC). If deviating objects in the selected sample size are found, additional analyzes are required to investigate how representative the results are for the entire population. LÄS MER

  4. 3. Development and validation of a method for separation of pregabalin and gabapentin capsules using Near Infrared hyperspectral imaging

    Kandidat-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

    Författare :Emelie Persson; [2019]
    Nyckelord :NIR; hyperspectral imaging; PCA; homogeneity; chemometrics; pregabalin; gabapentin;

    Sammanfattning : Seizures containing large numbers of units of narcotics, goods dangerous to health and doping are often sent to the Swedish National Forensic Centre (NFC). Only a fraction of these capsules or tablets can be analyzed, therefore the samples need to represent the whole seizure. LÄS MER

  5. 4. NEAR-INFRARED SPECTROSCOPY FOR REFUSE DERIVED FUEL : Classification of waste material components using hyperspectral imaging and feasibility study of inorganic chlorine content quantification

    Master-uppsats, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Författare :Martin Ševčík; [2019]
    Nyckelord :near-infrared spectroscopy; NIR; municipal solid waste; MSW; refuse derived fuel; RDF; classification; chemometrics; machine learning; artificial neural network; radial basis neural network; high-temperature corrosion; chlorine; waste to energy;

    Sammanfattning : This degree project focused on examining new possible application of near-infrared (NIR) spectroscopy for quantitative and qualitative characterization of refuse derived fuel (RDF). Particularly, two possible applications were examined as part of the project. LÄS MER

  7. 5. 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

    Master-uppsats, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

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

    Sammanfattning : 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. LÄS MER