Search for dissertations about: "Fredrik Rosenqvist"

Found 5 swedish dissertations containing the words Fredrik Rosenqvist.

  2. 1. Direction-dependent processes - Theory and application

    Author : Fredrik Rosenqvist; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; realisation; parameter estimation; direction-dependent dynamic processes; electronic noses; pulp and paper applications; piecewise-linear modelling;

    Abstract : In this thesis, direction-dependent processes are described as processes whose responses differ in shape, strength and speed, depending on whether the input signal or output signal increases or decreases. The way in which these dynamics arise is discussed for three different applications; these applications are a thermomechanical pulp refiner, in which the motor load response to the hydraulic pressure is direction dependent, a paper machine, in which the calliper control in the calender section is direction dependent, and an electronic nose, in which the response to substrate concentration is direction dependent. READ MORE

  4. 2. Modelling aspects in TMP refining

    Author : Fredrik Rosenqvist; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TMP refining; internal interconnections; direction-dependent dynamics; parameter estimation;

    Abstract : .... READ MORE

  5. 3. Transjugular intrahepatic portosystemic shunt in the treatment of symptomatic portal hypertension

    Author : Kerstin Rosenqvist; Rickard Nyman; Charlotte Ebeling Barbier; Fredrik Rorsman; Lars-Gunnar Eriksson; Lars Lönn; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Portal hypertension; TIPS; transjugular; portal venous thrombosis; mesenteric venous thrombosis; liver cirrhosis; interventional radiology; Radiology; Radiologi;

    Abstract : Portal hypertension (PHT) is a condition with serious complications, such as variceal bleeding, refractory ascites and bowel ischemia. The cause of PHT may be pre-, intra- or post-hepatic. Initial treatment is pressure-reducing drugs and the treatment of acute symptoms. READ MORE

  6. 4. Structured management, Symptoms, Health-related Quality of Life and Alcohol in Patients with Atrial Fibrillation

    Author : Neshro Barmano; Håkan Walfridsson; Ulla Walfridsson; Jan-Erik Karlsson; Emmanouil Charitakis; Fredrik Nyström; Mårten Rosenqvist; Linköpings universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : Atrial fibrillation (AF) is the most common cardiac arrhythmia, affecting at least 2.9 % of the Swedish population. Although AF is associated with increased risk of ischaemic stroke, there have been many reports on the underuse of oral anticoagulants (OAC) and non-adherence to guidelines in other areas as well. READ MORE

  7. 5. Simulation of turbocharged SI-engines - with focus on the turbine

    Author : Fredrik Westin; Hans-Erik Ångström; Gordon P Blair; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering design; turbocharging simulation 1D turbine accuracy SI-engine; Konstruktionsteknik; Construction engineering; Konstruktionsteknik;

    Abstract : The aim is to share experience gained when simulating (and doing measurements on) the turbocharged SI-engine as well as describing the limits of current state of the technology. In addition an overview of current boosting systems is provided. READ MORE