Sökning: "GEOMETRICAL"

Visar resultat 1 - 5 av 393 uppsatser innehållade ordet GEOMETRICAL.

  1. 1. Process parameter optimisation for Waspaloy using Laser-Directed Energy Deposition with Powder

    Kandidat-uppsats, Högskolan Väst/Institutionen för ingenjörsvetenskap

    Författare :Johannes Lövhall; [2024]
    Nyckelord :Process parameter optimisation; Waspaloy; Laser-Directed Energy Deposition with Powder;

    Sammanfattning : Material utilisation is of importance in the manufacturing industry formaking the most of each material, minimising waste and increasing cost-effectiveness. In this thesis, samples of Waspaloy built with the method of L-DED-P has been analysed in order to investigate how process pa-rameters influence the build quality and geometrical accuracy in as-builtobjects. LÄS MER

  3. 2. Independent validation of a system for real-time localization of the prostate during motion tracking radiotherapy

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen

    Författare :Klara Stefansson; [2024]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Intrafractional prostate motion during external beam radiotherapy of prostate tumors has been reported as a limiting factor in accurate treatment delivery. Technology for real-time image-guided radiotherapy has been introduced for tracking and for compensating prostate motion during treatment and could allow for reduced target margins. LÄS MER

  4. 3. Svenska gymnasieelevers svårigheter med bevis i geometri : En empirisk undersökning med van Hieles teori som ramverk

    Uppsats för yrkesexamina på avancerad nivå, Linköpings universitet/Analys och didaktik; Linköpings universitet/Tekniska fakulteten

    Författare :Donna Mach; Nils Strandler; [2023]
    Nyckelord :Geometri; bevisföring; bevis; van Hiele; svårigheter;

    Sammanfattning : Detta arbete undersöker svenska gymnasieelevers bevisföringsförmåga inom geometri med van Hieles modifierade modell som ramverk. Studien bygger på vårt tidigare examensarbete Elevers svårigheter med bevisföring inom geometri (Strandler & Mach, 2022), där internationella studier kring området sammanfattades. LÄS MER

  5. 4. Design of a grating lobe mitigated antenna array architecture integrated with low loss PCB filtering structures

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Eduardo Salvador Lopez; [2023]
    Nyckelord :Band-pass filters; Beam forming networks; Irregular subarrays; Particle Swarm Optimization; PCB; Penrose tessellation; Planar phased arrays; Quantization lobes; Scanning; Suspended stripline; Bandpassfilter; lobformning; matningsnätverk; Irreguljära gruppantenner; Particle Swarm Optimization; PCB; Penrose tessellation; Plana fasade gruppantenner; sidlober; Utstyrningsvinkel; Suspended stripline;

    Sammanfattning : Massive multiple input multiple output - MIMO systems are a reality and modern communication systems rely upon this technology to cope with the increasing need for capacity and network usage. Antenna arrays are at the heart of the of the massive-MIMO system and are the enabling technology. LÄS MER

  7. 5. Traditionell undervisning gentemot det kooperativa lärandet : En interventionsstudie om användningen av det kooperativa lärandet i matematikundervisningen

    Uppsats för yrkesexamina på avancerad nivå, Södertörns högskola/Lärarutbildningen

    Författare :Amin Ablouh; Nasim Sedraoui; [2023]
    Nyckelord :Traditional teaching; cooperative learning; conceptual understanding; geometry; mathematics education; grades 4-6; Traditionell undervisning; kooperativt lärande; begreppsförståelse; geometri; matematikundervisning; årskurs 4–6;

    Sammanfattning : This study aims to investigate the effects of cooperative learning on pupils’ knowledge and development with a particular focus on concepts and conceptual understanding in mathematics. By employing both qualitative and quantitative research methods, the study compared the effectiveness of cooperative learning to traditional teaching approaches in grade 4. LÄS MER