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Found 4 essays matching the above criteria.

  1. 1. Non-invasive ultrasound measurements of vascular impedance

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Roger Larsson; [2018]
    Keywords : Ultrasound; ultrafast ultrasound imaging; vascular impedance; pulse wave velocity; motion tracking; Technology and Engineering;

    Abstract : Despite its introduction in the early 1950´s, vascular impedance has yet to be applied in clinical use to predict early stages of cardiovascular disease (CVD). It is defined as the ratio between blood pressure and flow and describes the opposition to blood flow within the cardiovascular system. READ MORE

  3. 2. A comparative study of tracking methods for a guided walking city tour in outdoor spaces for tourists through AR on smartphones.

    University essay from KTH/Skolan för datavetenskap och kommunikation (CSC)

    Author : Lisa Schmitz; [2017]
    Keywords : Augmented Reality; AR; Location-based tracking; Marker- based tracking;

    Abstract : Recent advancements in mobile phone technology have al- lowed mobile augmented reality (MAR) to become feasible. Today’s mobile phones have enough computing power to dis- play augmented reality content and new frameworks make MAR development more accessible. READ MORE

  4. 3. Real-time tracking of instruments : Visualizing endoscope position on placental vasculature image

    University essay from KTH/Skolan för datavetenskap och kommunikation (CSC)

    Author : Johan Huusmann; [2017]
    Keywords : Twin to twin transfusion syndrome; real-time tracking of fetoscope;

    Abstract : Twin-to-twin transfusion syndrome (TTTS) is a complication of blood flow among fetuses sharing a single placenta. TTTS is associated with high mortality rates; however there is treatment available which significantly increases the rate of survival. The treatment procedure is although far from perfect. READ MORE

  5. 4. Nitrogen transformations at the Kiruna mine : The use of stable nitrogen isotopes to trace nitrogen-transforming processes

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Lino Nilsson; [2013]
    Keywords : Nitrogen; Nitrogen processes; Isotopes; Isotope tracers; Stable isotopes; Mines; Isotope analysis; Dual isotope analysis; Kväve; Kväveprocesser; Isotoper; Spårningsisotoper; Spårningsmetod; Gruvor; Isotopanalys;

    Abstract : Release of different nitrogen compounds can cause eutrophication in lakes and rivers whichcan lead to oxygen-free environments in bottom water and in the sediment and can in turnlead to fish-deaths. Ammonium can be toxic to biota and nitrate can in high concentrationeven be toxic to humans. READ MORE