Sökning: "direct current systems"

Visar resultat 1 - 5 av 203 uppsatser innehållade orden direct current systems.

  1. 1. Reevaluating the Notion of Peace : Do Our Current Measurements Truly Reflect Peace?

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för samhällsstudier (SS)

    Författare :Sanna Besic; [2024]
    Nyckelord :Peace Measuring; Peace Studies; Peace Conceptualisation; Peace Measurements; Violence; Direct Violence; Structural Violence; Cultural Violence;

    Sammanfattning : There is an ongoing theme within the field of peace conceptualisation to create and to add to the meaning of peace. This has caused a fragmented field with over 130 conceptualisations. As we move forward, it isthus necessary to review whether the methods utilised to measure peace are suitable in the ever changing contexts of today. LÄS MER

  3. 2. Shifting focus from yields to food supply : an evaluation of the ‘number of people fed per hectare’ indicator at farm and national level

    Master-uppsats, SLU/Department of Molecular Sciences

    Författare :Ida Ekqvist; [2024]
    Nyckelord :Land use efficiency; Sustainability indicators; Agricultural productivity; Food production;

    Sammanfattning : The challenge of feeding a growing global population while reducing the pressure on climate and ecosystems has gained much attention in research over the last decades. A crucial yet often overlooked aspect in research addressing this complex challenge is the efficiency of food production in meeting nutritional needs within the constraints of global cropland resources. LÄS MER

  4. 3. FPGA Based Control of Multiple Electric Machines for Marine Propulsion Systems

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

    Författare :Simon Weideskog; [2024]
    Nyckelord :FPGA; Field Oriented Control; BLDC; SVPWM; SMO; Electric Drives; Electric Machines; Sliding Mode Observer; Marine Propulsion; Multiple Machines; Boat Motor; Fältorienterad styrning; marin framdrivning; elektriska drivsystem; elmaskiner; flertal maskiner; båtmotor;

    Sammanfattning : This master thesis addresses the control of electric propulsion motors in a marine context. The focus lies mainly on the implementation of field oriented control (FOC) in a field programmable gate array (FPGA). The hypothesis is that FPGAs provide performance advantages over microcontroller-based control solutions by enabling parallel processing. LÄS MER

  5. 4. Effektivisering av SAQ 5.0 för SME:s : Att möta utmaningarna inför SAQ 5.0 hos Företag X och svenska SME:s

    Kandidat-uppsats, Jönköping University/Tekniska Högskolan

    Författare :Alexander Aronsson; [2024]
    Nyckelord :Global changes; Sustainability regulations; Suppliers to the automotive industry; Documentation in sustainability; Policies and certifications; Global Automotive Sustainability Guiding Principles; Drive Sustainability; Self-Assessment Questionnaire SAQ ; SAQ 5.0; SAQ 4.0; Environmental and quality management systems; Gap analysis; SME Small and Medium-sized Enterprises ; Hållbarhetsregleringar; Leverantörer till fordonsindustrin; Dokumentering inom hållbarhet; Policys och certifieringar; Miljö- och kvalitetsledningssystem; Gap-analys; SME Små och medelstora företag ; SAQ 4.0; SAQ 5.0;

    Sammanfattning : The current global changes and regulations in sustainability have a direct impact on suppliers to the automotive industry. Therefore, it is crucial for suppliers to the automotive industry to proactively monitor developments to avoid risking their competitiveness. LÄS MER

  7. 5. Turning the tide on marine biodiversity loss: How Swedish coastal cities are leveraging citizen interaction to improve conservation outcomes

    Master-uppsats, Lunds universitet/Internationella miljöinstitutet

    Författare :Martine Deinum; [2023]
    Nyckelord :Marine spatial planning; urban planning; blue space; program theory; citizen interaction; coastal conservation; Earth and Environmental Sciences;

    Sammanfattning : Rapid coastal urbanization and declining marine biodiversity rates are complex problems that require broad, integrated sets of solutions. Although isolating nature from human impact prevails as the standard conservation approach, social-ecological systems require more holistic solutions. LÄS MER