Sökning: "Conductor loss"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden Conductor loss.

  1. 1. Mathematical modeling and analysis of hot carrier solar cells

    Kandidat-uppsats, Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Författare :Benjamin van Dijk; [2023]
    Nyckelord :solar cell; nanowires; hot carrier; nanowire; analysis; mathematical model; trends; fermi function; reservoirs; Physics and Astronomy;

    Sammanfattning : This thesis focuses on the analysis of a mathematical model of a nanowire based hot carrier solar cell. The relevance of the topic comes from the energy crisis society is facing today. Firstly, we discuss the basic principle of hot carrier solar cells and discuss several energy loss factors. LÄS MER

  3. 2. Antenna Implants and Feasibility of Performance Limitations : AStudy of Radiation Efficiency on Electrically Small Antenna Implants with Finite Conductivity and Size

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

    Författare :Erik Algarp; [2022]
    Nyckelord :Antennaimplant; Medical Implant CommunicationSystem; Electrically small antenna; Electric dipole; Magnetic dipole; Fundamental bounds; Performance limits; Radiation efficiency; Conductor loss; Antennimplant; Medical Implant Communication System; Elektriskt små antenner; Elektrisk dipol; Magnetisk dipol; Fundamentala begränsningar; Prestandagränser; Strålningseffektivitet; Metallförlust;

    Sammanfattning : Antenna implants are used to establish a telemetry link to enable wireless data transfer, suitable for telemedicine and other medical applications. Inbody environments with water-based tissues lead to severe power absorption, making signal strength and radiation efficiency challenging yet central performance aspects of antenna implants. LÄS MER

  4. 3. Methods to identify broken neutral fault in LV distribution grids by using existing smart meters infrastructure

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Christoforos Menos-Aikateriniadis; [2019]
    Nyckelord :;

    Sammanfattning : The vast majority of Swedish utility network customers for nearly a decade has been supported by Advanced Metering Management (AMM) systems, including smart meters. Vattenfall´s modern smart meters enable a new level of monitoring for LV networks and improved MV network supervision. LÄS MER

  5. 4. Integrated antenna switch for NB-IoT

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Fredrik Zetterblom; Yunus Dawji; [2018]
    Nyckelord :T R Transmit Receive switch; RF switch; integrated RF switch; Narrowband Internet of Things NB-IoT ; CMOS; frontend; Technology and Engineering;

    Sammanfattning : Transistors are used in all digital devices today. The demand of faster and smaller devices such as mobile telephones and computers constantly drives the develop- ment of smaller transistor technologies. Transistors can also be used in analog applications. Today there are commercial chips with both radio and digital sys- tems in the same package. LÄS MER

  7. 5. Analys av fördelningssystem för bostadshus

    M1-uppsats, Institutionen för tillämpad fysik och elektronik

    Författare :Johan Larsson; [2012]
    Nyckelord :Fördelningssystem; Potentialutjämning;

    Sammanfattning : The purpose of this project is to analyze earthing systems for houses. By practical measurements and theoretical analyzes consequences of possible faults, that can occur within the facility and in the low-voltage distribution network, is illustrated. LÄS MER