Sökning: "Node selection"

Visar resultat 1 - 5 av 39 avhandlingar innehållade orden Node selection.

  1. 1. Sentinel Node Biopsy in Breast Cancer : Clinical and Immunological Aspects

    Författare :Jana de Boniface; Leif Bergkvist; Annika Håkansson; Omgo Nieweg; Uppsala universitet; []
    Nyckelord :Surgery; breast cancer; tumour immunology; sentinel node biopsy; CD3-zeta; CD28; Kirurgi;

    Sammanfattning : The most important prognostic factor in breast cancer is the axillary lymph node status. The sentinel node biopsy (SNB) is reported to stage the axilla with an accuracy > 95 % in early breast cancer. Tumour-related perturbation of T-cell function has been observed in patients with malignancies, including breast cancer. LÄS MER

  3. 2. Design and Performance of Diversity based Wireless Interfaces for Sensor Network Nodes

    Författare :Magnus Jobs; Anders Rydberg; Shi Cheng; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wireless; Sensor; Network; WSN; Antenna; WISENET; Node; Diversity; Phased Array; Conformal; WBAN; Body Area; Engineering Science with specialization in Microwave Technology; Teknisk fysik med inriktning mot mikrovågsteknik;

    Sammanfattning : The main focus of the work presented in this licentiate thesis concerns antenna design, adaptive antenna control and investigation on how the performance of small wireless nodes can be increased by inclusion of multiple antennas. In order to provide an end-user suitable solution for wireless nodes the devices require both small form factor and good performance in order to be competitive on the marked and thus the main part of this thesis focuses on techniques developed to achieve these goals. LÄS MER

  4. 3. Integrated Access and Backhaul for 5G and Beyond (6G)

    Författare :Charitha Madapatha Madapathage Don; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Stochastic geometry; Node selection; Beyond 5G; Backhaul; 6G; Blockage; Coverage probability; Poisson point process PPP ; Integrated access and backhaul IAB ; Relay; Constrained deployment; 5G new radio NR ; Tree foliage; Millimeter wave mmWave communications; Densification; 3GPP; Wireless backhaul; Routing; Genetic algorithm GA ; Topology optimization;

    Sammanfattning : Enabling network densification to support coverage-limited millimeter wave (mmWave) frequencies is one of the main requirements for 5G and beyond. It is challenging to connect a high number of base stations (BSs) to the core network via a transport network. LÄS MER

  5. 4. Model-based Analysis of Temporal Patterns in Atrioventricular Node Conduction During Atrial Fibrillation

    Författare :Mattias Karlsson; Avdelningen för Biomedicinsk teknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Atrial fibrillation AF ; Atrioventricular node; Mathematical modeling; Genetic algorithm GA ;

    Sammanfattning : The lifetime risk of developing atrial fibrillation (AF) is estimated to be between 1in 3 to 1 in 4 individuals, making it the most common arrhythmia in the world.For persistent AF, rate control drugs with the purpose to affect the conduction properties of the atrioventricular (AV) node are the most common treatment. LÄS MER

  7. 5. Predictors of Lymph Node Metastasis in Primary Breast Cancer - Risk Models for Tailored Axillary Management

    Författare :Looket Dihge; Lund Kirurgi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Breast Cancer; Axillary lymph node dissection; Sentinel lymph node biopsy; Ultrasonography; Nomogram; Artificial neural network; Gene Expression; Prediction model;

    Sammanfattning : Most patients with breast cancer present with low-risk tumors, node-negative disease, and excellent prognosis. For these patients, routine axillary nodal staging by sentinel lymph node biopsy (SLNB) has no therapeutic benefit. For patients with limited sentinel lymph node metastasis, completion axillary nodal dissection is controversial. LÄS MER