Sökning: "wave exposure"

Visar resultat 1 - 5 av 42 avhandlingar innehållade orden wave exposure.

  1. 1. ELF electromagnetic field exposure and biological experimentation

    Författare :Martin Lindgren; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cell experiments; v´biological effects; control-normalized evaluations; magnetic fields; overestimation; electromagnetic fields; replication; calcium wave; extremely low frequency; stray currents;

    Sammanfattning : .... LÄS MER

  3. 2. Millimeter Wave Imaging and Phased Array Antennas for 5G and Aerospace Applications

    Författare :Jakob Helander; Teoretisk elektroteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 5G; phased array; Millimeter wave antenna arrays; millimeter wave imaging; Computational Electromagnetics; Non-destructive testing NDT ; compressive sensing;

    Sammanfattning : Phased array antennas are cornerstones in many proposed antenna solutions concerning the next generation of both airborne radar systems and wireless communication systems (5G). Additionally, millimeter wave (mm-wave) frequencies are expected to play an integral role in 5G, and are deemed well-suited for inspecting structural components used in the aerospace industry. LÄS MER

  4. 3. Short-term effects of ambient temperature on daily deaths and hospital admissions

    Författare :Joacim Rocklöv; Bertil Forsberg; Jan Semenza; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; temperature; humidity; weather; climate; climate change; hot; heat; cold; cold spell; cold wave; heat wave; health; hospitalization; hospital admission; death; mortality; morbidity; epidemiology; environmental epidemiology; time series; Public health medicine research areas; Folkhälsomedicinska forskningsområden; Occupational and Environmental Medicine; arbets- och miljömedicin;

    Sammanfattning : Background: Incidence of death and hospitalizations have been observed to depend on short-term changes in weather and to increase with extreme temperatures. This thesis aims to strengthen the scientific knowledge on the relationship between temperature and daily deaths, but also the relationship between temperature and daily hospital admissions. LÄS MER

  5. 4. Form and Function of Coastal Areas

    Författare :Dan Lindgren; Andreas Bryhn; Lars Håkanson; Lars Brydsten; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Coastal areas; morphometry; geographic information systems; GIS; ecological value; wave exposure; sediment; bottom dynamic conditions; mass balance modeling; Other earth sciences; Övrig geovetenskap; Earth Science with specialization in Environmental Analysis; Geovetenskap med inriktning mot miljöanalys;

    Sammanfattning : Coastal waters have high biological productivity and provide goods and services with a high monetary value. Coasts are used by many different stakeholders and are often densely populated. LÄS MER

  7. 5. EMF Exposure and Radiation Performance of Millimeter-Wave Antennas in 5G Mobile Terminals

    Författare :Bo Xu; Sailing He; Oscar Quevedo-Teruel; Akimasa Hirata; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Since 2019, 5G has been rolled out in many countries. To support the demand of increasing traffic capacity, for the first time, the millimeter-wave (mmWave) frequency spectrum is exploited for the mobile wireless telecommunication technologies. LÄS MER