Sökning: "TIS"

Visar resultat 1 - 5 av 545 avhandlingar innehållade ordet TIS.

  1. 1. Characterization of Small Antennas & Wireless Devices for MIMO Systems in Multipath & Line-of-Sight

    Författare :Ahmed Hussain; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; USRP; OTA; SDR; RIMP; TRP; TIS; Reverberation chamber; Rayleigh; MIMO; LOS; LTE; Throughput;

    Sammanfattning : The current thesis investigates over-the-air (OTA) performance characterization of small antennas and wireless terminals in rich isotropic multipath (RIMP) environment, as well as in pure line-of-sight (LOS) environment when taking into account the random positions and orientations of the mobile terminals caused by the realistic user behavior. The latest mobile wireless terminals such as smart phones and tablets can be used in any random orientation thereby making even a received LOS-component appear as a random voltage at the antenna ports over time. LÄS MER

  3. 2. Enabling socio-technical transitions – electric vehicles and high voltage electricity grids as focal points of low emission futures

    Författare :Martin Albrecht; Åsa Svenfelt; Göran Finnveden; Jonas Åkerman; Anna Kramers; Måns Nilsson; Anna Bergek; KTH; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Socio-technical system; innovation system; transition; MLP; TIS; low emission future; electric vehicles; high voltage transmission grid; Sweden; Norway; Denmark; Finland; United Kingdom; Planering och beslutsanalys; Planning and Decision Analysis;

    Sammanfattning : Today humankind is facing numerous sustainability challenges that require us to question CO2 intensive practices like those present in the transport and energy sector. To meet those challenges, many countries have adopted ambitious climate targets. Achieving such targets requires an understanding of the wider socio-technical context of transitions. LÄS MER

  4. 3. Residential solar photovoltaics deployment: barriers and drivers in space

    Författare :Alvar Palm; Internationella miljöinstitutet; []
    Nyckelord :Solar photovoltaics PV ; renewable energy; sustainability transitions; technology deployment; diffusion of innovations; barriers; drivers; space; technological innovation system TIS ; technology adoption; business model; peer effects;

    Sammanfattning : In order to support a sustainability transition in the energy sector, actors need knowledge about barriers and drivers to the deployment of clean energy technologies. Solar photovoltaics (PV) is a renewable energy technology that is technically mature and on the verge of becoming economically competitive in numerous regions around the world. LÄS MER

  5. 4. De mensibus ... præside ... Magno Celsio ... disputabit Jacobus N. Lang s.æ r.æ m.tis alumnus in auditorio Gustaviano majori ad diem Maij a. 1671

    Författare :Magnus Celsius; Jacob Lang; Magnus Celsius; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES;

    Sammanfattning : .... LÄS MER

  7. 5. Characteres magnanimi ... sub præsidio ... Julii Micrandri ... Bonorum examini submittit Jacobus Wänman Bothn. S: R: M:tis. Stipendiarius In auditorio Gustav. majori ad d. Junii Anno 1682

    Författare :Julius Micrander; Julius Micrander; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES;

    Sammanfattning : .... LÄS MER