Search for dissertations about: "annulus"
Showing result 1 - 5 of 38 swedish dissertations containing the word annulus.
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1. Experimental Study of Post-Dryout Heat Transferin Annuli with Flow Obstacles
Abstract : An experimental study on post dryout heat transfer regime in annuli with flow obstacles was conducted in the High-pressure Water Test (HWAT) loop at the Royal Institute of Technology in Stockholm, Sweden. An annulus consisting of two concentric heated pipes (12.7x24.3) mm, with total heated length equal to 3650 mm was employed as a test section. READ MORE
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2. Experimental and theoretical study of post-dryout heat transfer in annuli with flow obstacle
Abstract : An experimental study on post dryout heat transfer regime in annuli with flow obstacles wasconducted in the High-pressure Water Test (HWAT) loop at the Royal Institute of Technologyin Stockholm, Sweden. An annulus with flow obstacles, consisting of two concentric heatedpipes (12.7x24. READ MORE
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3. Mitral annulus motion in left ventricular pumping
Abstract : This thesis focus on the role of the mitral annulus motion (MAM) versus outer contour changes in the short axis, in left ventricular (LV) pumping. The influence of atrial contraction on LV dimensions and volumes and the relation between MAM and ejection fraction (EF) in sinus rhythm and in atrial fibrillation was also studied. READ MORE
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4. Transoesophageal and transthoracic recordings of mitral annulus motion
Abstract : Maximal systolic and diastolic velocities recorded from four sites of the mitral annulus motion (MAM) reflect left ventricular (LV) performance. This thesis focus on factors influencing M-mode derived velocities in healthy children and adults and reference values are proposed. READ MORE
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5. Echocardiographic measurements at Takotsubo cardiomyopathy : transient left ventricular dysfunction
Abstract : Takotsubo cardiomyopathy (TTC) is a disease characterized by transient left ventricular (LV) dysfunction and typical wall motion abnormalities in apical parts, without obvious signs of coronary influence. Due to its elusive natural cause and the lack of clarified pathology, further studies are needed. READ MORE