Sökning: "mottagar"

Hittade 5 avhandlingar innehållade ordet mottagar.

  1. 1. Modeling of a Retrodirective Channel With Active Antenna Arrays for Cross-Eye Jamming

    Författare :Björn Petersson; Martin Norgren; Warren P. du Plessis; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electronic warfare; antenna array; antenna system; radar countermeasures; jamming; cross-eye; systems modeling; system performance; systems simulation; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Cross-Eye (CE) jamming is a technique aimed at inducing false target angles in radar measurements. The potential to deceive monopulse radar, a radar type commonly used due to its angular accuracy and resilience against jamming, has captured the interest of Electronic Warfare (EW) system manufacturers. LÄS MER

  3. 2. Dynamic capabilities for managing logistics challenges of retailers

    Författare :Linnea Haag; Erik Sandberg; Uni Sallnäs; Árni Halldórsson; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : The increase in globalisation of trade, digitalisation and new technical advances in marketing, IT, and logistics have created new opportunities for retailers to expand and reshape their businesses. These changes have resulted in more complex logistics, and retailers are now facing several critical logistics challenges. LÄS MER

  4. 3. Extracellular Matrix Remodelling-Proteoglycan and collagen turnover in arthritis

    Författare :Anette Bjärdahlen; Institutionen för experimentell medicinsk vetenskap; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Arthritis; collagen; cartilage; myofibroblasts; pannus; proteoglycan; Skeleton; muscle system; rheumatology locomotion; reumatologi; Skelett; muskelsystem;

    Sammanfattning : Rheumatoid arthritis is a chronic, inflammatory and systemic disease characterised by joint destruction and pannus formation. To enlarge the understanding how pannus and granulation tissue are formed two animal models were used; one using cartilage wrapped in cotton and implanted into a rat air pouch (AP) and one where mBSA induced arthritis (AIA) was performed. LÄS MER

  5. 4. Multiple Antenna Terminals in Realistic Environments - A Composite Channel Modeling Approach

    Författare :Fredrik Harrysson; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Channel model; MIMO; multiple antennas terminal; propagation; user interaction; vehicular channel; diversity; spatial multiplexing; channel measurement;

    Sammanfattning : For evaluation of specific antenna arrangements in wireless communication systems we need physical channel models that take into account also the directional domain of the propagation channel. In this thesis we investigate, validate and propose a practical approach to wireless channel modeling and, particularly, to mobile communication systems. LÄS MER

  7. 5. Peocolipase and enterostatin- Functions during high-fat feeding

    Författare :Catarina Rippe; Cellulär biomekanik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicine human and vertebrates ; high-fat diet; obesity; lipase; uncoupling protein; procolipase; enterostatin; Medicin människa och djur ;

    Sammanfattning : Enterostatin is a peptide formed in the stomach and intestine during the activation of pancreatic/gastric procolipase. Procolipase is a necessary cofactor for lipase. These two proteins contribute to the breakdown of dietary triglycerides in the intestine. LÄS MER