Sökning: "curve speed"

Visar resultat 1 - 5 av 103 uppsatser innehållade orden curve speed.

  1. 1. Measuring Sprint Speed with Ultra-wideband Technology

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

    Författare :Johannes Arenander; [2023]
    Nyckelord :Speed; Sprint; Ranging; Ultra-wideband; Hastighet; Sprint; Distansmätning; Ultrabredband;

    Sammanfattning : Sprinting can be an important ability in sports, and there are many methods for measuring sprint performance. Two common methods are hand-held timing and fully automatic timing systems. However, hand-held timing is inaccurate due to reaction time, and fully automatic timing can be impractical since it involves complex equipment. LÄS MER

  3. 2. Analys och minskning av effektförlusterna i en borstlös likströmsmotor med vektorstyrning

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

    Författare :Lider Xavier Garcia Parrales; [2023]
    Nyckelord :Effektförluster Borstlös likströmsmotor BLDC Vectorstyrning Field-oriented Control FOC Blockkommutering Block commutation MTPA; Technology and Engineering;

    Sammanfattning : This report addresses power losses in an electric motor arising from various sources. The choice of motor control strategy can decrease efficiency if not implemented correctly or if the motor model in the control loop is overly simplified. LÄS MER

  4. 3. Analysis of performance data of wind turbines for polar regions

    L3-uppsats, Uppsala universitet/Högenergifysik

    Författare :Arnau Serra Garet; [2023]
    Nyckelord :;

    Sammanfattning : The Radio Neutrino Observatory in Greenland is situated at Summit Station. Due to its isolatedlocation the main power to support the autonomous radio stations is solar energy. However,during the winter months when there is no sun another strategy needs to be found. LÄS MER

  5. 4. THE WIND OF CHANGE – SENSITIVITY OF THREE PARAMETERS ON WIND POWER ENERGY CALCULATIONS USING WINDPRO SOFTWARE

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Nina Skuja; [2023]
    Nyckelord :Error; Sensitivity; WindPRO; Wind Power; Wind Speed; Roughness; Power Curve; Energy Production; Wind Resource Assessment;

    Sammanfattning : Many parameters used for Wind Resource Assessment (WRA) have uncertainty and variability, yet are input into the process as single values. The extent of the uncertainty or variance may not be known, and may or may not be significant enough to affect output. LÄS MER

  7. 5. The Impact of China's Digital Economy Development on Carbon Emissions - Taking 31 Key Cities as Evidence

    Kandidat-uppsats, Lunds universitet/Ekonomisk-historiska institutionen

    Författare :Chu Han Qin; [2023]
    Nyckelord :Digital economy; Carbon emissions; Low-carbon development; Information and communication technology ICT ; Inverted U-shape; Environmental Kuznets Curve EKC ; Business and Economics; Social Sciences;

    Sammanfattning : Environmental deterioration led by global warming is accelerating, and low-carbon development has become a global consensus. China, as the world's largest developing country, has also responded to low-carbon development and proposed a "30.60" dual-carbon target aimed at reducing carbon emissions. LÄS MER