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Visar resultat 1 - 5 av 144 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Air Gap Method : Air-Gaps in Building Construction to avoid Dampness & Mould

   Författare :Tord af Klintberg; Folke Björk; Kjartan Gudmundsson; Jesper Arfvidsson; KTH; []
   Nyckelord :humidity; air gaps; water damage; convection; building; construction;

   Sammanfattning : .... LÄS MER

3. 2. Cabin Air Quality in Commercial Aircraft : Exposure, Symptoms and Signs

   Författare :Torsten Lindgren; Dan Norbäck; Gunilla Wieslander; Jan Sundell; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicine; airline crew; aviation medicine; micro-organism; cabin air quality; air humidity; atopy; occupational exposure; environmental tobacco smoke ETS ; psychosocial work environment; Medicin; Dermatology and venerology; clinical genetics; internal medicine; Dermatologi och venerologi; klinisk genetik; invärtesmedicin; arbets- och miljömedicin; Occupational and Environmental Medicine;

   Sammanfattning : The objective of the dissertation was to study the cabin environment, and identify personal and environmental risk factors, associated with symptoms, and perception of cabin air quality. Another objective was to study if ban of smoking, and increased relative air humidity on intercontinental flights, could have a beneficial health effect. LÄS MER

4. 3. User Perception of Climate in Hospital Wards. An Analysis of Thermal Climate and Air Humidity Demands

   Författare :Jennie Ekbom; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; recommendations; perception; indoor environment; air humidity; thermal climate; guiding principles; hospital ward;

   Sammanfattning : There are very few studies on perceived climate in hospital environments. This study deals with hospital wards, the consequences of establishing requirements for air humidity in them, and the use of existing recommendations and guiding principles. Many variables affect people’s perception of the indoor environment. LÄS MER

5. 4. Indoor and Outdoor Air Pollution in Relation to Allergy and Asthma in Taiyuan, China

   Författare :Zhuohui Zhao; Dan Norbäck; Jan Sundell; Uppsala universitet; []
   Nyckelord :Medical sciences; Indoor air; China; School; Allergen; Dust; Microbial exposure; SO2; Air pollutants; Epidemiology; MEDICIN OCH VÅRD;

   Sammanfattning : The aim was to study the prevalence of asthma, eczema, allergy and respiratory symptoms among pupils in Shanxi province, China, in relation to home and school environment and outdoor air pollution. In one study there was a low prevalence of self-reported asthma, eczema and pollen or pet allergy among pupils (9-20y). LÄS MER

7. 5. Performance-based design of ventilation systems. Potential and limitations regarding indoor air quality

   Författare :Ragib Kadribegovic; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ventilation; prescriptive design; indoor air quality; air cleaning; energy efficiency; performance-based design; recirculation;

   Sammanfattning : It has been increasingly common to design for increased ventilation rates above legislative requirements specified in building codes and other norms as the most optimum way to improve indoor air quality. However, this concept has recently been challenged, for example, by studies demonstrating that the emissions or pollution from used traditional particle filters increases proportionally with air flow through the filter. LÄS MER