Search for dissertations about: "welding dust"

Found 5 swedish dissertations containing the words welding dust.

  2. 1. Applications of Magnetic Tracers in the Human Lung and Gastrointestinal Tract

    Author : Mikael Forsman; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; inverse solution; gastrointestinal motility; inhaled particles; gastric emptying; welding dust; MPG; pulmonary clearance; occupational health; magnetopneumography; multipole analysis; transit time;

    Abstract : The use of ferrimagnetic material as a tracer represents a noninvasive approach in physiological measurements. Concerning the lung, magnetopneumography, MPG, is a unique technique to estimate retained dust in the lung, using the magnetizable dust fraction as a tracer. First a strong constant magnetic field is briefly applied to the thorax. READ MORE

  4. 2. The Prevalence of Radioactivity in a Number of Non-Nuclear Industries

    Author : Torbjörn Gäfvert; Lund Medicinsk strålningsfysik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Kärnfysik; Nuclear physics; zircon; ceramics industry; thorium; TIG welding; waterworks; calcium chloride; dicalcium phosphate; phosphate industry; non-nuclear industries; TENORM; Natural radioactivity; NORM;

    Abstract : Four different non-nuclear industries have been investigated regarding the presence of radioactive elements, with the focus on natural radioactivity. The aim of the studies was to investigate the flow of radionuclides in the processes and/or to estimate doses to exposed workers. READ MORE

  5. 3. Occupational exposure to particles in relation to chronic obstructive pulmonary disease and cardiovascular disease

    Author : Karin Grahn; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Objective The working life is expanding with increased retirement ages as the population is aging, in Sweden but in also other parts of the world. However, workers with poor health might not cope with working in higher ages. READ MORE

  6. 4. Congenital heart disease, genetic syndromes, and childhood cancer

    Author : Christina-Evmorfia Kampitsi; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Childhood cancer is a diverse group of rare diseases and remains a significant global concern, despite substantial improvements in survival outcomes. Yet, little is known about its etiology. READ MORE

  7. 5. Exposure to air pollution in the work and residential environment during pregnancy and adverse birth effects

    Author : Filip Norlén; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Air pollution is an environmental health risk that causes millions of premature deaths every year around the world. Air pollution exposure has been associated with respiratory and cardiovascular morbidity and an increased risk of lung cancer, and has also been associated with adverse birth effects. READ MORE