Search for dissertations about: "suction"

Showing result 1 - 5 of 117 swedish dissertations containing the word suction.

  2. 1. Endotracheal Suction a Reopened Problem

    Author : Birgitta Almgren; Marieann Högman; Mats Sjöquist; Anders Larsson; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiology; Mechanical; ventilation; endotracheal; suction; lung; volume; loss; gas; exchange; Fysiologi; Physiology; Fysiologi;

    Abstract : During mechanical ventilation, patients are connected to the ventilator by an endotracheal tube. The tube needs to be cleaned from mucus by suction, which can cause negative effects such as lung collapse, hypoxemia and desaturation. READ MORE

  4. 2. On Suction Box Dewatering Mechanisms

    Author : Peter Åslund; Bo Norman; Timoty Patterson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Suction box; vacuum; water removal; compressibility; displacement; rewetting; laboratory equipment; Cellulose and paper engineering; Cellulosa- och pappersteknik;

    Abstract : In previous studies on suction box dewatering, three mechanisms were identified that determine the dry content of a web, viz. web compression, displacement of water by air and rewetting. READ MORE

  5. 3. Numerical studies of transtion in wall-bounded flows

    Author : Ori Levin; Dan Henningson; Nikolaus Adams; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; boundary layer; suction; wall jet; streaks; waves; periodic disturbance; localized disturbance; turbulent spot; algebraic growth; exponential growth; stability; transition thresholds; transition prediction; PSE; DNS; Fluid mechanics; Strömningsmekanik;

    Abstract : Disturbances introduced in wall-bounded flows can grow and lead to transition from laminar to turbulent flow. In order to reduce losses or enhance mixing in energy systems, a fundamental understanding of the flow stability and transition mechanism is important. READ MORE

  6. 4. Modelling of the pressure distributions in twin-wire blade formers

    Author : Claes Holmqvist; KTH; []
    Keywords : fluid mechanics; blade forming; pressure distribution; suction; interaction; permeable fabric; modules;

    Abstract : During papermaking, the internal structure of the fibrenetwork constituting the paper is to a dominating extentdetermined in the forming zone of the paper machine. Thisthesis is aimed at studying the pressure distribution in bladeforming sections, which is commonly considered to be a keyquantity of the process. READ MORE

  7. 5. Mechanical modelling of blade forming and drainage of flocculated suspensions

    Author : Claes Holmqvist; Anders Dahlkild; Douglas Bousfield; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Applied mechanics; blade forming; pressure distribution; interaction; suction; drainage; Teknisk mekanik; Engineering mechanics; Teknisk mekanik;

    Abstract : A method has been developed for flexible modelling of multi-component twin-wire blade formers. Features such as suction devices, loadable blades, curved blades, and partial contact between the blades and the forming fabrics are easily incorporated. READ MORE