Search for dissertations about: "airline"

Showing result 6 - 10 of 28 swedish dissertations containing the word airline.

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

    Author : Torsten Lindgren; Dan Norbäck; Gunilla Wieslander; Jan Sundell; Uppsala universitet; []
    Keywords : 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;

    Abstract : 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. READ MORE

  4. 7. Minimizing the operational costs and environmental impact of an airline

    Author : Henrik Ekstrand; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : The airline industry is struggling with continuously increased costs and tough competition on most markets all over the world. In addition, increased environmental awareness puts additional pressure on the airlines to do its outmost to minimize its environmental impact. READ MORE

  5. 8. The Tail Assignment Problem

    Author : Mattias Grönkvist; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; hybrid optimization; fleet planning; aircraft routing; column generation; airline optimization; tail assignment; constraint programming;

    Abstract : The Aircraft Assignment problem is the problem of assigning flights to aircraft in such a way that some operational constraints are satisfied, and possibly that some objective function is optimized.We propose an approach to aircraft assignment which captures all operational constraints, including minimum connection times, airport curfews, maintenance, and preassigned activities. READ MORE

  6. 9. Fear of flying in civil airline passengers: a manifold phenomenon with various motivational roots

    Author : Gunilla Amnér; MedCUL Medicinska fakultetens centrum för undervisning och lärande; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; aerophobia; Psychology; Psykologi; fear of flying;

    Abstract : This thesis comprises four papers reporting results from a project studying the fear of flying phenomenon. Paper I is an evaluation study of a new percept-genetic instrument, the Flight Situation Test (FST). A group of 24 subjects with a fear of flying (FoF) and 19 controls (non-FoF) were tested. READ MORE

  7. 10. Spatial analysis and modeling of urban transportation networks

    Author : Jingyi Lin; Yifang Ban; Sten Henning Hansen; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Complex networks; transportation systems; network growth; Evolving networks; centrality; urban systems; topology; space syntax; spatial networks; distance effects; gravity laws; planarity; street network patterns; US airline system; China’s aviation system; network efficiency; cellular structure; hierarchy; network representations; Geodesy and Geoinformatics; Geodesi och geoinformatik;

    Abstract : Transport systems in general, and urban transportation systems in particular, are the backbone of a country or a city, therefore play an intrinsic role in the socio-economic development. There have been numerous studies on real transportation systems from multiple fileds, including geography, urban planning, and engineering. READ MORE