Sökning: "Rejection"

Visar resultat 6 - 10 av 399 avhandlingar innehållade ordet Rejection.

  1. 6. Interference Rejection in Wireless Communication Systems

    Författare :Anders Ranheim; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; direct-sequence spread spectrum; parameter estimation; multi-user detection; antenna array processing; iterative minimization; interference rejection; finite alphabet; order detection; signal structure; narrow-band interference;

    Sammanfattning : This thesis is concerned with the problem of interference rejection in wireless communication systems. Different solutions are proposed, depending on the type of system under study and the amount of knowledge available about the signal and the propagation environment. LÄS MER

  3. 7. Rejection of periodic disturbances

    Författare :Gunnar Hillerström; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reglerteknik; Control Engineering;

    Sammanfattning : .... LÄS MER

  4. 8. Pancreas Transplantation: Development of Successful Preclinical Models

    Författare :Wayne John Hawthorne; Kirurgi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; acute rejection; simultaneous pancreas and kidney transplant; portal venous drainage; systemic venous drainage; pancreaticoduodenal transplant; segmental pancreas transplant; duct-occlusion; autograft; Pancreas transplantation; allograft; hyperacute rejection; glucose metabolism.; Surgery; orthopaedics; traumatology; Kirurgi; ortopedi; traumatologi;

    Sammanfattning : Pancreas transplantation is today a technically successful procedure and provides an alternative to insulin injections for the treatment of Type I diabetes mellitus. This thesis was undertaken while pancreas transplantation was developing and while several fundamental questions were being asked about both endocrine and exocrine drainage of the transplanted pancreas as well as how best to diagnose and prevent rejection. LÄS MER

  5. 9. Intestinal transplantation: Outcome, complications and diagnostic approach

    Författare :Jonas Varkey; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Intestinal transplantation; rejection; endoscopy;

    Sammanfattning : Background: Intestinal transplantation is a potentially lifesaving procedure conducted in candidates with e.g. intestinal failure. However, a limiting factor has been the complications, which are inherent to the procedure, along with the inadequacies of current modalities to establish a prompt diagnosis of acute cellular rejection. LÄS MER

  7. 10. Cellular Immune Responses to Allografts and Cytomegalovirus

    Författare :Mats Engstrand; Olle Korsgren; Gunnar Tufveson; Nils Persson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Immunology; Transplantation; Rejection; Monitoring; Flow Cytometry; MHC; Tetramer; CMV; infection; Immunologi; Immunology; Immunologi;

    Sammanfattning : Today the immunosuppressive treatment is kept to a level were the incidence of acute rejection is below 20% within the first year after transplantation. As a consequence, a group of transplanted patients is over-immunosuppressed and at risk for infections. LÄS MER