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Showing result 1 - 5 of 13 essays matching the above criteria.

  1. 1. Self-determined motivation in Brazilian Jiu Jitsu practitioners: gender, age and competition experience differences

    University essay from Linnéuniversitetet/Institutionen för idrottsvetenskap (ID)

    Author : Panagiotis Doinakis; [2023]
    Keywords : Combat sports; SMS-6; Flow; Social climate; Martial arts;

    Abstract : Martial arts (MA) and combat sports (CS) demand significant physical, mental, and emotional engagement in both training and competition. Brazilian Jiu Jitsu (BJJ), known for its intricate mastery requirements, operates within a performance-oriented climate where unmet goals can lead to diminished interest. READ MORE

  3. 2. Analysis and Valorization of Bark from Silver Birch, Scots Pine, and Norway Spruce : Compositional analysis of bark from common Swedish trees in forestry, to optimize sustainability procedures and monetary value of bark residue

    University essay from Umeå universitet/Kemiska institutionen

    Author : Isak Lindbäck; [2022]
    Keywords : ;

    Abstract : Silver birch, Scots pine, and Norway spruce are the three most common types of trees in Sweden and make up to 90% of standing volume in Swedish forests (Skogsstyrelsen 2015, 3). With millions of cubic meters of wood being cut down annually, bark and other residues that cannot be used for sawn timber is left over and burnt for energy. READ MORE

  4. 3. X-Ray Fluorescence of Metal Halide Perovskites

    University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Author : Samuel Narciso Silva; [2022]
    Keywords : Perovskite; X-ray; Fluorescence; Python; PyMCA; Synchrotron radiation; Physics and Astronomy;

    Abstract : This thesis has the aim to provide a framework for analyzing X-ray fluorescence (XRF) data obtained from German Electron-Synchrotron Group (DESY). The theoretical analysis shows that XRF competes with Auger emission, and works mainly for elements with high atomic number. Here, incident X-rays of 13. READ MORE

  5. 4. Classification of Premium and Non-Premium Products using XGBoost and Logistic Regression

    University essay from Lunds universitet/Statistiska institutionen; Lunds universitet/Nationalekonomiska institutionen

    Author : Francisco Erazo; Stephany Rojas Gerena; [2022]
    Keywords : XGBoost; Logistic Regression; Classification Algorithms; Food and Beverage; Cost-Sensitive Analysis; SMOTE; Business and Economics;

    Abstract : In the past few years, many industries have become interested in premium product segmentation to achieve higher unit margins. In this paper, we applied machine learning algorithms to predict whether a product is premium or non-premium. READ MORE

  6. 5. Surface Functionalization of Nanowires Using Silane-PEG Compounds

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Hedvig Ekfors Elvin; [2022]
    Keywords : Functionalization; Nanowires; Silanization; Surface Chemistry; Materials Chemistry; Chemistry;

    Abstract : Introduction: GaP nanowires were functionalized using silane-PEG-NH2 and compared with cellulose acetate, PAcrAm™-g-(PMOXA, amine, silane) and a non-functionalized reference sample. Functionalization would allow strong, covalent anchoring of antibodies instead of adsorption. READ MORE