Sökning: "SNV"

Visar resultat 1 - 5 av 8 uppsatser innehållade ordet SNV.

1. 1. Real-time characterization of fuel by Near-Infrared spectroscopy : Quantitative measurements of moisture content, ash content, heating value, and elemental compositions in solid biofuel mixtures

   Uppsats för yrkesexamina på avancerad nivå, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

   Författare :Kajsa Edlund; Ali Ahmad Shahnawazi; [2021]
   Nyckelord :NIR; spectroscopy; solid biofuel mixtures; moisture content; ash content; heating value; elemental composition; boiler; CHP pant; CCS; CO2; emissions; NIR; spektroskopi; fasta biobränsleblandningar; fukthalt; ask innehåll; värmevärde; elementär komposition; panna; kraftvärmeverk; CCS; CO2; utsläpp;

   Sammanfattning : The global energy demand supplies mainly from fossil fuels, which is neither sustainable nor environmentally friendly and aims to global warming. Therefore, both more investments in renewable energy sources such as bioenergy are required, as well as new technologies such as carbon capture and storage (CCS) to handle the emissions from existing combined heat and power (CHP) plants. LÄS MER

3. 2. Development of a Near Infrared Spectroscopy Model for Prediction of Fibre Compounds in Alfalfa

   Master-uppsats, Lunds universitet/Teknisk mikrobiologi

   Författare :Christina Andersen; [2020]
   Nyckelord :alfalfa; lucerne; medicago sativa; green protein powder; NIR; near infrared spectroscopy; model development; matlab; PLS; partial least squares; PCA; principal component analysis; SNV; standard normal variate; fibre prediction; TDF; total dietary fibre; applied microbiology; teknisk mikrobiologi; Technology and Engineering;

   Sammanfattning : Background: This project investigates if it is possible to develop a calibration model from near infrared (NIR) spectroscopic measurements, for determination of the amount and type of fibre fractions within protein powder produced from the legume alfalfa, without performing wet experiments. Alfalfa is also known as Medicago sativa and lucerne, but is in this project further referred to as alfalfa. LÄS MER

4. 3. Överföring av NIR metod för kvantitativ analys mellan olika instrument

   Uppsats för yrkesexamina på grundnivå, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

   Författare :George Mado; [2019]
   Nyckelord :NIR; Metod; Modell; Multivariat; Spektra;

   Sammanfattning : Detta examensarbete går ut på att överföra en metod- från ett Antaris NIR-instrument på AstraZeneca Macclesfield till ett Bomem 3600 NIR-instrument på AstraZeneca Gärtuna. Metoden används för att säkerställa att biprodukten form L ligger under specificerat gränsvärde för produkten. Kvantitativa NIR metoder är inte absoluta. LÄS MER

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

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

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

   Sammanfattning : 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. LÄS MER

7. 5. Comparison between Calibrations of Fish Oil and AkoFeed Examined with Near-Infrared Light for Use in Animal Feed

   Master-uppsats, Lunds universitet/Tillämpad biokemi

   Författare :Camilla Nilsson; [2016]
   Nyckelord :RMSEP; Validation; PLS; Calibration; NIR; SNV; Sow Feed; Fish oil; AkoFeed Standard; R2; KBK820; applied biochemistry; tillämpad biokemi; Technology and Engineering;

   Sammanfattning : The aim with this master thesis was to investigate if a certain sow feed requires different calibrations in near-infrared analysis, due to if the sow feed have fish oil or AkoFeed as fat source. To investigate this, a basic sow feed mix was prepared and divided in 60 jars with 250 g in each. LÄS MER