Sökning: "mobile phones"

Visar resultat 11 - 15 av 179 avhandlingar innehållade orden mobile phones.

  1. 11. Creating opportunity by connecting the unconnected : mobile phone based agriculture market information service for farmers in Bangladesh

    Författare :M. Sirajul Islam; Åke Grönlund; Rahul Dé; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ICT4D; agriculture market information service; design science research; mobile phones; farmers; technology acceptance; artifact design; Bangladesh; least developed countries; Informatics; Informatik; Informatik; Informatics;

    Sammanfattning : This thesis is framed within the research area of Information and Communication Technologies for Development (ICT4D), which is concerned with how ICT can make a difference to the lives of the poor. This study focuses primarily on mobile phones and how they can be used as part of an Agriculture Market Information Service (AMIS) in order to provide crucial information to farmers in Bangladesh. LÄS MER

  3. 12. Mobile phones in school: From disturbing objects to infrastructure for learning

    Författare :Torbjörn Ott; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; mobile phone; upper secondary school; teachers; students; public debate; infrastructure for learning;

    Sammanfattning : Amid digitalisation, the mobile phone has pervaded society and become one of the most widespread digital technologies. In school, the mobile phone has stirred up conflicts and tensions visible in public debate as well as classrooms. Teachers and students have struggled to manage mobile phones within the boundaries of school practice. LÄS MER

  4. 13. Studies of Three Different Methods to Estimate the Up-link Performance of Mobile Phone Antennas

    Författare :Sathyaveer Prasad; Peter Händel; Claes Beckman; Jan Carlsson; Högskolan i Gävle; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Antenna measurements; mobile phones; total radiated power; reverberation chamber; anechoic chamber; Telia Scattered Field Method; Maximum likelihood Estimator; Telecommunication; Telekommunikation;

    Sammanfattning : Antennas play an important role in determining the overall radio performance for wireless communications. If all other radio components perform according to their specifications, the performance of a mobile phone can be entirely determined by measuring the efficiency of its antenna. LÄS MER

  5. 14. Bridging the blocked river : A study on internet and mobile phone practices within an environmental movement between 2005 and 2008 in Argentina and Uruguay

    Författare :Virginia Melián; Kari Andén-Papadoupolos; Anna Roosvall; Christian Christensen; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; internet; mobile phones; collective action; environmental movements; social movements; Latin America; protest; public sphere; medie- och kommunikationsvetenskap; Communication Studies;

    Sammanfattning : In recent years mobile phones and the internet have played an increasingly significant role, assisting in the organization of dissent worldwide. Only a few studies have dealt with the interplay between social movements and these digital media in Latin America so far. LÄS MER

  7. 15. Algorithmic Verification Techniques for Mobile Code

    Författare :Irem Aktug; Dilian Gurov; Mads Dam; Ulfar Erlingsson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Verification; Mobile Code Security; Reference Monitoring; Maximal Models; Compositional Verification; Theoretical computer science; Teoretisk datalogi;

    Sammanfattning : Modern computing platforms strive to support mobile code without putting system security at stake. These platforms can be viewed as open systems, as the mobile code adds new components to the running system. Establishing that such platforms function correctly can  be divided into two steps. LÄS MER