Sökning: "Ye Xu"

Hittade 3 uppsatser innehållade orden Ye Xu.

  1. 1. Gamifying Social Media for Users on Sustainability-A design science research for social media platforms

    Magister-uppsats, Lunds universitet/Institutionen för informatik

    Författare :Zizhou Qiu; Ye Zheng; Jinmeng Xu; [2021]
    Nyckelord :Sustainability; Social media; Gamification; Design Science; Business and Economics;

    Sammanfattning : At present, social media platforms pay more and more attention to convey sustainable concepts to users, and at the same time, gamification is a popular interaction approach to attract users, then the purpose of this research is to explore how to leverage gamification into social media to make users sustainable, and the target audiences are the enterprises of social media. The entire study is a design science research covering the questionnaire survey and interviews, this is devoted to formulating an artifact to solve the problem in this study. LÄS MER

  3. 2. Kilowatt Three-phase Rotary Transformer Design for Permanent Magnet DC Motor with On-rotor Drive System

    Master-uppsats, Mittuniversitetet/Avdelningen för elektronikkonstruktion

    Författare :Ye Xu; [2016]
    Nyckelord :contactless energy transfer; transformer power loss; iron loss; iron loss model; rotary transformer; three-phase transformer; finite element method; COMSOL Multiphysics; electrical steel; electrical steel manufacturing process;

    Sammanfattning : The aim of this thesis is to design a kilowatt three-phase step-down rotary transformer for a permanent magnet DC motor. The permanent magnet DC motor has an on-rotor drive system, and therefore requiring a power supply that can transfer power to its drive unit without mechanical contact. LÄS MER

  4. 3.  A Wideband High Dynamic Range Continuous-Time Sigma-Delta ADC for Wireless Applications

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Ye Xu; [2010]
    Nyckelord :;

    Sammanfattning : In recent years, the research toward the development of high speed and high resolution analog-to-digital converters (ADCs) has been equally driven by the demand of high-speed wire line and wireless communication services. Delta-Sigma ADCs are widely used in wireless applications due to their oversampling and noise shaping characteristics. LÄS MER