Sökning: "Reference signals"

Visar resultat 16 - 20 av 91 avhandlingar innehållade orden Reference signals.

1. 16. Study on the Earth’s Surface Mass Variations using Satellite Gravimetry Observations

   Författare :Hadi Amin; Mohammad Bagherbandi; Lars Sjöberg; Faramarz Nilfouroushan; Martin Horwath; Högskolan i Gävle; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; geodetic reference system; geoid potential; global vertical datum; climate change; global warming; mass change; ice melting; sea-level change; remote sensing; satellite gravimetry; geodetiska referenssystem; geopotential; globala vertikala datum; klimatförändring; global uppvärmning; massförändring; issmältning; havsnivåförändring; fjärranalys; satellitgravimetri;

   Sammanfattning : Our complex planet is continuously undergoing temporal and spatial changes. In this context, ongoing processes in the Earth subsystems (geosphere, biosphere, cryosphere, hydrosphere, and atmosphere) cause changes in the gravity field of the Earth across a wide range of temporal and spatial scales. LÄS MER

3. 17. Immunological and inflammatory mechanisms in ocular allergy with special reference to vernal keratoconjunctivitis : clinical and experimental studies

   Författare :Per Montan; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :allergic conjunctivitis; allergen challenge; atopy; conjunctival biopsy; eosinophils; ECP; IgE; immunohistochemistry; inflammation; interleukins; T-cells; tears; vernal keratoconjunctivitis;

   Sammanfattning : Ocular allergy encompasses a wide range of conditions, most of which implicate IgE in the pathogenesis. In contrast to the benign nature of seasonal allergic conjunctivitis (SAC), the less common chronic eye diseases vernal and atopic keratoconjunctivitis (VKC and AKC) are severe and debilitating disorders. LÄS MER

4. 18. Exercise and regulation of metabolic function in human skeletal muscle : with special reference to PGC-1α and the mitochondria

   Författare :Eva-karin Gidlund; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Regular physical activity is highly associated with many health benefits and regular exercise training is used in the prevention and treatment of a large number of disease conditions, including type 2 diabetes, cardiovascular disease and cancer. One of the key adaptations to regular exercise training is mitochondrial biogenesis and improved oxidative capacity, particularly in skeletal muscle tissue. LÄS MER

5. 19. New neurons and astrocytes in the adult brain. Studies on adult rat neural progenitors in vivo and in vitro with special reference to the effects of IGF-I and CNTF regarding proliferation and lineage determination

   Författare :Maria A I Åberg; Göteborgs universitet; []
   Nyckelord :Brain; hippocampus; rat; neurogenesis; progenitor cell; stem cell; ciliary neurotrophic factor; insulin-like growth factor-I; PI3-K; MAPK.;

   Sammanfattning : The hippocampal dentate gyrus in several species, including man, continues to produce new neurons and glial cells in adulthood. The generation of new neurons and glial cells in the adult hippocampus is under strict regulation. Two major events of significance for cell genesis from progenitor cells are proliferation and lineage determination. LÄS MER

7. 20. On the Adaptive Array Problem

   Författare :Mats Viberg; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Direction-of-Arrival; Signal to Noise Ratio; Adaptive array problem; Radio communication system;

   Sammanfattning : By an array we mean a set of coupled sensors, typically antenna elements. The array receives superimposed signals from distant sources. By combining the outputs of the sensors in different ways, one can change the array sensitivity to different Directions-of-Arrival (DOA). LÄS MER