Search for dissertations about: "air transportation"

Showing result 16 - 20 of 102 swedish dissertations containing the words air transportation.

2. 16. Acute cardiovascular effects of biofuel exhaust exposure

   Author : Jon Unosson; Jenny A Bosson; Anders Blomberg; Jeremy P Langrish; Campen Matthew; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cardiovascular; air pollution; endothelial dyssfunction; arterial stiffness; wood smoke; woodsmoke; biodiesel; RME; biofuel; diesel exhaust;

   Abstract : 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. READ MORE

4. 17. On motion resistance estimation and modeling for heterogeneous road vehicles

   Author : Mikael Askerdal; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; road vehicles; motion resistance; passenger cars.; Range estimation; commercial heavy vehicle combinations; rolling resistance; air resistance; state estimation;

   Abstract : Climate change is driving the development of CO2 reducing technologies within the transportation industry. One of the most promising technologies is battery electric vehicles. READ MORE

5. 18. Delays and Timetabling for Passenger Trains

   Author : Carl-William Palmqvist; Trafik och väg; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; rail; delay; timetable; train; punctuality; Rail transportation;

   Abstract : 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. READ MORE

6. 19. High Octane Number Fuels in Advanced Combustion Modes for Sustainable Transportation

   Author : Amir Bin Aziz; Förbränningsmotorer; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Octane number; Low temperature combustion LTC ; Ignition delay; Methanol; HCCI; PPC; Multiple injection strategy; φ-stratification;

   Abstract : 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. READ MORE

7. 20. Long-term exposure to transportation noise in relation to metabolic and cardiovascular outcomes

   Author : Andrei Pyko; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : 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. READ MORE