Sökning: "Thomas Larsson"

Visar resultat 21 - 25 av 42 avhandlingar innehållade orden Thomas Larsson.

  1. 21. On Massive MIMO Base Stations with Low-End Hardware

    Författare :Christopher Mollén; Erik G. Larsson; Thomas Eriksson; Josef Nossek; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; massive MIMO; hardware; ADC; power amplifier; out-of-band radiation; peak-to-average ratio;

    Sammanfattning : Massive MIMO (Multiple-Input Multiple-Output) base stations have proven, both in theory and in practice, to possess many of the qualities that future wireless communication systems will require.  They can provide equally high data rates throughout their coverage area and can concurrently serve multiple low-end handsets without requiring wider spectrum, denser base station deployment or significantly more power than current base stations. LÄS MER

  3. 22. Analysis of Two Transcriptional Regulators that Affect Meristem Function : Arabidopsis thaliana TERMINAL FLOWER2 and Picea abies APETELA2

    Författare :Lars Nilsson; Annika Sundås Larsson; Peter Engström; Thomas Laux; Uppsala universitet; []
    Nyckelord :Developmental biology; Arabidopsis thaliana; Picea abies; gene regulation; development; meristem; Utvecklingsbiologi;

    Sammanfattning : The aerial plant body is derived from undifferentiated cells in the shoot apical meristem that in Arabidopsis thaliana is active throughout the plant life cycle. Upon transition to flowering the activity of the meristem is altered and the meristem starts to produce secondary inflorescences and floral meristems instead of leaves. LÄS MER

  4. 23. Boplatsvallen som bostad i Norrbottens kustland 5000 till 2000 före vår tideräkning : en studie av kontinuitet och förändring

    Författare :Erik Norberg; Thomas B Larsson; Mika Lavento; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Semi-subterranean house; dwelling; settlement; history; land upheaval; meter above sea; Archaeology; Arkeologi;

    Sammanfattning : This thesis focuses on the use of the semi-subterranean house on the coast of Norrbotten during the period 5000–2000 BC. The term semi-subterranean house (in Swedish boplatsvall) became a new category of prehistoric remains in Norrbotten during the 1980s. LÄS MER

  5. 24. Cellular and Molecular Mechanisms Underlying Acute Quadriplegic Myopathy : Studies in Experimental Animal Models and Intensive Care Unit Patients

    Författare :Holly Norman; Lars Larsson; Thomas Sejersen; Uppsala universitet; []
    Nyckelord :Neurosciences; Acute Quadriplegic Myopathy; intensive care unit; atrophy; myosin heavy chain; actin; myosin binding proteins; nuclear transcription factors; mRNA; Neurovetenskap;

    Sammanfattning : The combination of a severe systemic illness, corticosteroids, and neuromuscular blocking agents in patients on the mechanical ventilator often results in a condition known as Acute Quadriplegic Myopathy (AQM). While severe weakness of all spinal nerve innervated muscles is known to be a significant clinical characteristic of the disease, this symptom is typically not recognized until the disease has progressed to an advanced stage. LÄS MER

  7. 25. Investigating mucin interactions with diverse surfaces for biomedical applications

    Författare :Georgia Petrou; Thomas Crouzier; Anette Larsson; KTH; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; mucus; mucin; protein adsorption; biomaterials; lubrication; mucoadhesion; 4RepCT; Bioteknologi; Biotechnology;

    Sammanfattning : Mucous membranes are covered with mucus, a viscoelastic hydrogel that plays an essential role in their protection from shear and pathogens. The viscoelasticity of mucus is owing to mucins, a group of densely glycosylated proteins. LÄS MER