Sökning: "Xin Liu"

Visar resultat 1 - 5 av 12 uppsatser innehållade orden Xin Liu.

  1. 1. Ethical Hacking of a Smart Video Doorbell

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

    Författare :Xin Liu; [2021]
    Nyckelord :smart video doorbell; IoT; security; penetration testing; threat modeling; smart video dörrklocka; IoT; säkerhet; penetrationstestning; hotmodellering;

    Sammanfattning : With the rapid development of IoT, more and more cyber security threats occur in people’s lives. In addition, many IoT devices are closely related to lives and have a large number of users, such as smart home. Therefore, it is more worthy for the adversaries to launch attacks. LÄS MER

  3. 2. Effect of Professional Development and Self-efficacy on Teachers’ Job Satisfaction in Swedish Lower Secondary School

    Master-uppsats, Göteborgs universitet/Institutionen för pedagogik och specialpedagogik

    Författare :Xin Liu; [2018-08-25]
    Nyckelord :Job satisfaction; ; Self-efficacy; Professional development; Constructive belief; Classroomdisciplinary climate;

    Sammanfattning : Aim: The intent of this study is to examine the effect of professional development and self-efficacy on job satisfaction of teachers who work at the lower secondary schools in Sweden. The second part of the study is to investigate the internal factors of teachers’ characteristics and external factors of school climate effect on job satisfaction. LÄS MER

  4. 3. A Lithium-ion Battery Charger

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Författare :Hanwen Xing; Xin Liu; [2015]
    Nyckelord :Li-ion battery; charging theory; current control; voltage control.;

    Sammanfattning :    Nowadays personal small electronic devices like cellphones are more and more popular, but the various batteries in need of charging become a problem. This thesis aims to explain a Lithium-ion charger which can control the current and voltage so that it can charge most kinds of popular batteries. LÄS MER

  5. 4. Family capital influence on the internationalisation on family firms : A multiple case study of Swedish family firms

    Kandidat-uppsats, Högskolan i Jönköping/IHH, Företagsekonomi

    Författare :Xin Liu; Modestas Musteikis; David-Robert Schröder; [2014]
    Nyckelord :Family firm; Family capital; Internationalisation;

    Sammanfattning : The purpose of this research is to increase understanding about the influence of the family on internationalisation of family firms in the Swedish context, in terms of family human, social and financial capital. Multiple cases of four Swedish manufacturing family firms were studied by conducting interviews with the family members working in the family firm. LÄS MER

  7. 5. IEEE 802.11n MIMO Modeling and Channel Estimation Implementation

    Master-uppsats, Institutionen för systemteknik; Tekniska högskolan

    Författare :Xin Xu; [2012]
    Nyckelord :Simulink; MIMO; OFDM; STBC; Beamforming; MMSE detector; channel estimation;

    Sammanfattning : With the increasing demand of higher data rate for telecommunication, the IEEE802.11n standard was constituted in 2009. Themost important character of the standard is MIMO-OFDM, which not only improves the throughput but also the spectrumefficiency and channel capacity. This report focuses on the physical layer IEEE802. LÄS MER