Sökning: "ARCS"

Visar resultat 1 - 5 av 56 uppsatser innehållade ordet ARCS.

  1. 1. Lösning av diofantiska ekvationer med hjälp av Fourieranalys: En studie av Hardy-Littlewoods cirkelmetod

    Kandidat-uppsats, Göteborgs universitet/Institutionen för matematiska vetenskaper

    Författare :Hugo Bäckman; Tony Gromer; Rebecka Mårtensson; Elina Möller; [2023-11-28]
    Nyckelord :;

    Sammanfattning : I detta kandidatarbete i matematik vid Chalmers tekniska högskola och Göteborgs universitet studeras två applikationer av Hardy-Littlewoods cirkelmetod. Det redogörs för en förbättring på Warings problem för ett godtyckligt antal olika potenser. LÄS MER

  3. 2. TRIGONOMETRI

    Kandidat-uppsats, Göteborgs universitet/Institutionen för matematiska vetenskaper

    Författare :Phoenix Björkdahl; [2023-04-20]
    Nyckelord :Trigonometry. Misconceptions. Misunderstandings. Students’ Conceptions. Spherical Trigonometry. Obstacles. Concept Image. Teacher Resources.;

    Sammanfattning : This literature review compiles research related to students' conception, obstacles and problems with trigonometry as well as teacher resources that can be used to develop students' understanding in the field. The research spans year 6 through university courses. LÄS MER

  4. 3. Analysis of high-voltage low-current DC/DC converters for electrohydrodynamic pumps

    Kandidat-uppsats, Uppsala universitet/Institutionen för elektroteknik

    Författare :Sigge Axelsson; Jonas Gartner; Axel Stafström; [2023]
    Nyckelord :high-voltage; low-current; low-power; DC DC; DC-DC; high-gain; converter; electrohydrodynamic pump; EHD; transformerless converter; Royer-based converter; resonant Royer oscillator; Cockroft-Walton voltage multiplier; CWVM; voltage multiplier; series-connected positive-negative voltage multiplier; SPNVM; planar air-core transformer; planar transformer; high-freqency Royer-based converter; overcurrent protection; LT8331; gallium nitride; GaN; planar PCB-integrated transformers;

    Sammanfattning : Moving parts cause vibrations and tend to wear out. In applications where maintenance is complicated, solutions without moving parts are therefore advantageous. Electrohydrodynamic pumps are such a solution. Instead of mechanical propulsion, they use strong electric fields to induce movement in a dielectric cooling liquid. LÄS MER

  5. 4. "I'm not forcing anyone" : A Study on Motivation and Willingness to Communicate in English in a Swedish Upper-Secondary School Context

    Uppsats för yrkesexamina på grundnivå, Mälardalens universitet/Akademin för utbildning, kultur och kommunikation

    Författare :Ylva Craig; [2023]
    Nyckelord :English as a second language; second language learning; willingness to communicate; motivation; integrativeness; upper-secondary school; Sweden; ARCS model;

    Sammanfattning : This study aims to expand on the existing knowledge of Swedish upper-secondary students’ willingness to communicate (WTC) in English and provide insight into how motivational strategies are used in some Swedish English-as-a-second-language (ESL) classrooms by the teachers. To gather data, four teachers were interviewed, and three of them observed in class, and 67 students answered a questionnaire. LÄS MER

  7. 5. Friezes, Triangulations, and Trees

    Kandidat-uppsats, Lunds universitet/Matematik LTH; Lunds universitet/Matematik (naturvetenskapliga fakulteten); Lunds universitet/Matematikcentrum

    Författare :Yijia Zeng; [2023]
    Nyckelord :Frieze pattern; polygon triangulation; binary tree; Catalan numbers; Mathematics and Statistics;

    Sammanfattning : In this thesis, we focus on these three classes of objects: frieze patterns, polygon triangulations, and planar binary rooted trees. After proving that these objects are in pairwise bijective correspondence with each other, we introduce Catalan numbers through Dyck paths and prove that all these objects are Catalan objects. LÄS MER