Sökning: "air transportation"
Visar resultat 16 - 20 av 103 avhandlingar innehållade orden air transportation.
16. Acute cardiovascular effects of biofuel exhaust exposure
Sammanfattning : BackgroundAnthropogenic air pollution is a global health problem estimated to contribute to millions of premature deaths. Exposure to biomass smoke is common due to varying sources, such as wildfires, indoor cooking over open fires, and residential heating from wood stoves. LÄS MER
17. On motion resistance estimation and modeling for heterogeneous road vehicles
Sammanfattning : Climate change is driving the development of CO2 reducing technologies within the transportation industry. One of the most promising technologies is battery electric vehicles. LÄS MER
18. Delays and Timetabling for Passenger Trains
Sammanfattning : Travel by train has increased steadily in Sweden the last 30 years. The pace has been about two to three percent per year, and we now have twice as many passengers. With growing awareness of the changing climate, the pace is increasing further. A problem that affects both passengers and businesses in Sweden is train delays. LÄS MER
19. High Octane Number Fuels in Advanced Combustion Modes for Sustainable Transportation
Sammanfattning : The research community recently proposed a low-temperature combustion (LTC) concept that can simultaneously reduce Nitrogen Oxides (NOx) and soot emissions while maintaining high engine efficiency. Given that diesel fuel is prone to preignition with early injection, gasoline-like fuel with high octane number is utilised to provide sufficient ignition delay and extend the load range. LÄS MER
20. Long-term exposure to transportation noise in relation to metabolic and cardiovascular outcomes
Sammanfattning : Transportation noise exposure is increasing because of rapid urbanization and transportation growth. Environmental noise exposure affects a large part of the population and gives rise to widespread annoyance and sleep disturbances. LÄS MER