Underground railway systems, can generate heat from their operations to raise the temperatures of carriages and the station substantially. This may lead to passenger discomfort and complain especially in warm weather conditions that prevail in Tehran if underground environment is not cooled. Transportation air conditioning Committee of American Society of Heating, Refrigerating and air-conditio...

Long-duration exposure to microgravity has been shown to have detrimental effects on the human musculoskeletal system. To date, exercise countermeasures have been the primary approach to maintain bone and muscle mass and they have not been successful. Up until 2008, the three exercise countermeasure devices available on the International Space Station (ISS) were the treadmill with vibration iso...

Two new species of the genus Anoplocheylus Berlese, 1910 (Acari: Trombidiformes: Pseudocheylidae), A. sinai Bagheri sp. nov. and A. kazemii Bagheri sp. nov., are described and figured. An updated key to all known species of Anoplocheylus is also provided.

A satellite ground station for participation in the Canadian project MOST (Microvariability and Oscillations of Stars) has been set up and is being successfully operated since October 2003 at the Institute for Astronomy of the University of Vienna. The location of the ground station is in a densely populated region of the town. The station has been built at costs affordable for Universities usi...

In the unmanned ground vehicle (UGV) case, the estimation of a future position with a present one is one of the most important techniques (Madhavan & Schlenoff, 2004). Generally, the famous global positioning system (GPS) has been widely used for position tracking because of its good performance (Torrieri, 1984; Kim et al., 2006). However, there exist some defects. For example, it needs a separ...