Search for dissertations about: "Band"

Showing result 6 - 10 of 1343 swedish dissertations containing the word Band.

  2. 6. Knotted Nodal Band Structures

    Author : Marcus Stålhammar; Emil Bergholtz; Edwin Langmann; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; teoretisk fysik; Theoretical Physics;

    Abstract : It is well known that in conventional three dimensional (3D) Hermitian two band models, the intersections between the energy bands are generically given by points. The typical example are Weyl semimetals, where these singular points can be effectively described as Weyl fermions in the low energy regime. READ MORE

  4. 7. Efficient Spectrum Utilization of Uhf Broadcast Band

    Author : Lei Shi; Jens Zander; Ki Won Sung; Linda Dolye; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TV White Space; CellTV; UHF Band; Spectrum; Electrical Engineering; Elektro- och systemteknik;

    Abstract : The UHF band between 470-790 MHz, currently occupied by digital ter- restrial TV (DTT) distribution in Europe, is widely regarded as a premium spectrum band for providing mobile coverage. With the exponential increase in wireless data traffic in recent years, there has been growing interests in gaining access to this spectrum band for wireless broadband services. READ MORE

  5. 8. Characteristics of Vertical Forest Backscatter Profiles Measured using Radar Tomography

    Author : Patrik Bennet; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Forest remote sensing; L-band; above-ground biomass; P-band; vertical reflectivity profiles; radar tomography; temporal backscatter variations;

    Abstract : Forests are an integral part of the Earth’s climate system, having shaped the conditions of life throughout millions of years, but the coverage and conditions of forests are under rapid change. To monitor this change and predict the impact on climate, yearly global mapping of forest Above-Ground Biomass (AGB) is needed. READ MORE

  6. 9. Low-Power Secondary Access to the TV and Aeronautical Bands

    Author : Evanny Carol Obregon Gamarra; Jens Zander; Ki Won Sung; Ben Slimane; Jonas Kronander; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Secondary Access; Interference Management; TV band; Aeronautical Band; SRA - ICT; SRA - Informations- och kommunikationsteknik;

    Abstract : The avalanche in mobile data consumption represents a big challenge for mobile operators. The efficient use of radio resources, e.g. technology, infrastructure and spectrum, is needed to meet the new capacity requirement in the mobile networks. READ MORE

  7. 10. Myofibrillens finstruktur i tvärstrimmig skelettmuskulatur

    Author : Anne-Christine Edman; Michael Sjöström; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Muscle; muscle fibre; fibre type; myofilament; A-band; M-band; cryo-ultramicrotomy; electron microscopy; image analysis;

    Abstract : The detailed structure of the myofibrillar material in fibres from different muscles has been studied. Specimens have been obtained from human muscles and from different muscles frequently examined in experimental studies. Both light- and electron microscopical techniques have been used. READ MORE