Search for dissertations about: "sinus"

Showing result 21 - 25 of 119 swedish dissertations containing the word sinus.

  2. 21. Exploiting Prior Information in Parametric Estimation Problems for Multi-Channel Signal Processing Applications

    Author : Petter Wirfält; Magnus Jansson; Abdelhak Zoubir; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Array signal processing; covariance matrix; damped sinusoids; direction of arrival estimation; frequency estimation; Kronecker; NQR; NMR; parameter estimation; persymmetric; signal processing algorithms; structured covariance estimation; Toeplitz; Array; signalbehandling; kovariansmatris; dämpad sinus; riktningbestämning; frekvensskattning; Kronecker; NQR; NMR; parameterestimering; persymmetrisk; algoritm; strukturerad kovariansmatris; Toeplitz;

    Abstract : This thesis addresses a number of problems all related to parameter estimation in sensor array processing. The unifying theme is that some of these parameters are known before the measurements are acquired. READ MORE

  4. 22. The effects of carotid sinus nerve stimulation on cardiovascular dynamics : a bioengineering approach

    Author : P. Åke Öberg; Uppsala universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : .... READ MORE

  5. 23. On platelet-rich plasma in reconstructive dental implant surgery

    Author : Andreas Thor; Göteborgs universitet; []
    Keywords : autogenous bone graft; bone formation; coagulation; clinical study; complement; dental implant; experimental study; growth factors; platelet activation; platelet-rich plasma; sinus lift surgery; thrombogenicity;

    Abstract : Abstract Background Severe athrophy of the edentulous maxilla may require augmentation before implants can be placed. Autogenous bone has been used for reconstruction in block or in particulated form. READ MORE

  6. 24. Aspects of the inflammatory response and formation of polys in the nasal and sinus mucosa

    Author : Tomas Norlander; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Experimental sinusitis was induced in rabbits by ostial occlusion, with or without subsequent inoculation of Streptococcus pneumoniae, Staphylococcus aureus or Bacteroides fragilis The general inflammatory response, including goblet cell differentiation and polyp formation, was morphologically investigated. Polyps were experimentally induced by a combining mechanical trauma the mucosa with infection or by injection of agarose or N-formyl-methionyl-leucyl-phenylalanine (FMLP) into the maxillary sinus. READ MORE

  7. 25. On tissue reactions to and resorption of bone substitutes

    Author : Arne Mordenfeld; Malmö högskola; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; bone graft; bone substitutes; sinus floor augmentation; lateral ridge augmentation;

    Abstract : Background: The increasing need for bone grafting procedures inimplant dentistry and the introduction of a variety of bone substitutesrequire a deeper understanding of the biological response and shortandlong-term behaviour of these materials to choose the adequategraft and surgical procedure for the intended clinical application.Aims: The overall aim was to clinically and histologically studythe short- and long-term tissue reactions to and resorption of bonesubstitutes after bone augmentation. READ MORE