Displacement ventilation systems are widely used in spaces of small and medium heights (up to 7.5 m), taking advantage of their high efficiency in removing contaminants by means of the air stratification.
Radio and television industries employ structures that can attain heights up to 600 m and communication towers for mobile phones are approximately 60 m though higher structures are also constructed.
In these areas, red alders, which live for about 100 years, have begun to die, and the Douglas-firs, which can live for 750 years, attain heights up to about 240 feet.
Description: A medium to large sized, much branched, evergreen tree that can attain heights up to 30 m. Presence of well-developed buttresses, which develop into plank roots, is a characteristic feature of this species.
Anacostia (up 27.7percentt), Marshall Heights (up 24.8percentt), Fort Dupont Park (up 24.0percentt) and Congress Heights (up 22percentt) all saw the biggest gains in 2015.
Existing Swedish design guidelines (JBR) cover silo wall heights up to about 3 m.
They drove GDP growth to dizzy heights, up to 10% a year.
Sweet cherry trees are large and rather upright, attaining heights up to 11 metres (36 feet).
Offshore New England and Nova Scotia, models predicted wave heights up to five stories tall.
Over the next four days, we walked 45 km and scaled heights up to 3,750m.
The northern part is higher and consists of four hilly massifs, with heights up to 1,519 feet (463 m).
