indoor air quality iaq is the air quality within and around buildings and structures. iaq is known to affect the health, comfort and well-being of building occupants. poor indoor air quality has been linked to sick building syndrome, reduced productivity and impaired learning in schools.
this region is also the location of the harshest conditions for hard rock mining, with air temperatures of up to 45 c 113 f . however, massive refrigeration plants are used to bring the temperature down to around 28 c 82 f .
sabre global distribution system, owned by sabre corporation, is used by travel agents and companies around the world to search, price, book, and ticket travel services provided by airlines, hotels, car rental companies, rail providers and tour operators. sabre aggregates airlines, hotels, online and offline travel agents and travel buyers.
hood scoop functions cool air. in most modern vehicles, internal combustion engines 'breathe' under-hood air or air ducted from under the front bumper through plastic and rubber tubing. the high operating temperatures in the engine compartment result in intake air that is 28 c 82 f or warmer than the ambient temperature, and consequently less dense.
in 1988, allis-chalmers sold its american air filter filtration business with 27 production facilities internationally and sales into 100 countries for approximately $225 million to snydergeneral corporation of dallas, a leading global air quality control firm.
a roller rocker is a rocker arm that uses bearings instead of metal sliding on metal. it has a wheel on its end like that of a measuring wheel , which rolls by the use of needle bearings . for pushrod engines, roller rockers employ a roller where the rocker contacts the valve stem .
fish can be obligate or facultative shoalers. obligate shoalers, such as tunas, herrings and anchovy, spend all of their time shoaling or schooling, and become agitated if separated from the group.facultative shoalers, such as atlantic cod, saiths and some carangids, shoal only some of the time, perhaps for reproductive purposes.. shoaling fish can shift into a disciplined and coordinated .
a rocker arm in the context of an internal combustion engine of automotive, marine, motorcycle and reciprocating aviation types is an oscillating lever that conveys radial movement from the cam lobe into linear movement at the poppet valve to open it. one end is raised and lowered by a rotating lobe of the camshaft either directly or via a tappet lifter and pushrod while the other end .