Search for dissertations about: "free valve"

Showing result 1 - 5 of 27 swedish dissertations containing the words free valve.

  2. 1. Heart Valve Surgery : Preoperative Assessment and Clinical Outcome

    Author : Laila Hellgren; Elisabeth Ståhle; Mårten Rosenquist; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; Heart valve surgery; magentic resonance imaging; echocardiography; operative mortality; survival; complications; quality of life; Kirurgi; Surgery; Kirurgi;

    Abstract : A more global analysis of the outcome of heart valve surgery is desirable to reflect the actual benefit for the patient. This thesis focuses on the preoperative assessment of the patient, and the outcome after surgery with regard to operative mortality, long-term survival, valve-related complications, and quality of life. READ MORE

  4. 2. Study of a Pneumatic Hybrid aided by a FPGA Controlled Free Valve Technology System

    Author : Sasa Trajkovic; Förbränningsmotorer; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Compressor; Air-motor; Pneuamtc; Pneumatic-hybrid; VVT; Valve; regenerative; Hybrid; Air;

    Abstract : Urban traffic involves frequent acceleration and deceleration. During deceleration, the energy previously used to accelerate the vehicle is mainly wasted on heat generated by the friction brakes. If this energy that is wasted in traditional IC engines could be saved, the fuel economy would improve. READ MORE

  5. 3. Engineering Magnetic Droplets in Nanocontact Spin-Torque Nano-Oscillators

    Author : Sheng Jiang; Johan Åkerman; Dario Arena; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Magnetic Droplet; Magnetic Tunnel Junction; Perpendicular Magnetic Anisotropy; Spin-torque Nano-Oscillators; Spin-Valve.; Physics; Fysik;

    Abstract : Spin-torque nano-oscillators (STNOs) are nanoscale spintronic devices capable of generating highly tunable broadband microwave signals. In this thesis, I study nanocontact (NC)-based STNOs using strong perpendicular magnetic anisotropy(PMA) free layers, where a novel magnetic soliton—a magnetic droplet—exists. READ MORE

  6. 4. Diabetes and Coronary Surgery : Metabolic and clinical studies on diabetic patients after coronary surgery with special reference to cardiac metabolism and high-dose GIK

    Author : Zoltán Szabó; Folke Nilsson; Linköpings universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; diabetes; heart; coronary surgery; cardiac surgery; myocardial metabolism; free fatty; Thoracic surgery; Thoraxkirurgi;

    Abstract : Introduction An increasing proportion of the patients undergoing cardiac surgery have diabetes mellitus, in particular type II diabetes. In spite of this, diabetic patients have received limited attention in this setting. READ MORE

  7. 5. Infective Endocarditis : aspects of pathophysiology, epidemiology, management and prognosis

    Author : Christer Ekdahl; Rolf Maller; Mats Broqvist; Urban Forsum; Lennart E. Nilsson; Rune Andersson; Linköpings universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; epidemiology; Infective endocarditis IE ; heart valve surgery; monocytes; granulocytes; staphylococ; Epidemiology; Epidemiologi;

    Abstract : Infective endocarditis (IE) is a rare but complex disease that is fatal if untreated. With a modern combination of antimicrobial therapy and heart valve surgery, mortality is still 10-20 %. The structure of the endocarditis vegetation impedes the penetration of phagocytic cells such as monocytes and granulocytes. READ MORE