Search for dissertations about: "Diffusion capacity"

Showing result 1 - 5 of 158 swedish dissertations containing the words Diffusion capacity.

  2. 1. Hydrogen in nano-sized metals : Diffusion and hysteresis effects

    Author : Wen Huang; Björgvin Hjörvarsson; Max Wolff; Gavin Walker; Uppsala universitet; []
    Keywords : Hydrogen; diffusion; hysteresis; optical technique; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Abstract : Metal hydrides can be used as hydrogen storage materials for fuel cells and batteries, and as sensors for detecting hydrogen gas. The use of metal hydrides for hydrogen storage can be hindered by poor kinetics and low capacity. Moreover, poor sensitivity, long recovery and response time, limit the applications of metal hydrides as hydrogen sensors. READ MORE

  4. 2. Lung function in relation to exercise capacity in health and disease

    Author : Amir Farkhooy; Andrei Malinovschi; Christer Janson; Hans Hedenström; Harrpa Arnardottir; Ann Ekberg Jansson; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Exercise capacity; Exercise test; Lung function; Spirometri; Diffusion capacity; COPD; Pulmonary hypertension; Clinical Physiology; Klinisk fysiologi;

    Abstract : Background: Exercise capacity (EC) is widely recognized as a strong and independent predictor of mortality and disease progression in various diseases, including cardiovascular and pulmonary diseases. Furthermore, it is generally accepted that exercise capacity in healthy individuals and in patients suffering from cardiovascular diseases is mainly limited by the maximum cardiac output. READ MORE

  5. 3. On diffusion of organic colloids in compacted bentonite

    Author : Susanna Wold; KTH; []
    Keywords : Diffusion; sorption; Humic Substances; Bentonite;

    Abstract : The main issue of this thesis was to obtain information ondiffusion and sorption behaviour on organic colloids incompacted bentonite through experimental studies. It was tostudy if bentonite is an efficient barrier for organic colloidsor not. READ MORE

  6. 4. Hydrogen diffusion and storage mechanisms in diopside

    Author : Rickard Sundvall; Henrik Skogby; Alasdair Skelton; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mineralogy; Mineralvetenskap; mineralogi; petrologi och geokemi; Mineralogy; Petrology and Geochemistry;

    Abstract : Hydrogen is a widespread trace element in many nominally anhydrous minerals (minerals without water or hydroxyl ions in their structural formula) from the Earth's crust and mantle. The hydrogen is normally incorporated in the form of hydroxyl ions and can be regarded as structurally bound water. READ MORE

  7. 5. Energy Storage Materials: Insights From ab Initio Theory : Diffusion, Structure, Thermodynamics and Design

    Author : Rafael Barros Neves de Araújo; Rajeev Ahuja; Graeme Henkelman; Uppsala universitet; []
    Keywords : Density Functional Theory; Defects Diffusion; Thermodynamics and Batteries.;

    Abstract : The development of science and technology have provided a lifestyle completely dependent on energy consumption. Devices such as computers and mobile phones are good examples of how our daily life depends on electric energy. READ MORE