- tritium illumination: Tritium is used with phosphor in rifle sights to increase nighttime firing accuracy. Some runway markers and building exit signs use the same technology, to remain illuminated during blackouts.
- Smoke detector: An ionization smoke detector includes a tiny mass of radioactive americium-241, which is a source of alpha radiation. Two ionisation chambers are placed next to each other. Both contain a small source of 241Am that gives rise to a small constant current. One is closed and serves for comparison, the other is open to ambient air; it has a gridded electrode. When smoke enters the open chamber, the current is disrupted as the smoke particles attach to the charged ions and restore them to a neutral electrical state. This reduces the current in the open chamber. When the current drops below a certain threshold, the alarm is triggered.
Other articles related to "commercial applications, applications":
... to speed up the more computationally intensive commercial applications that were being put on AS/400s ... instruction set required extensions for the commercial applications on the AS/400 ... To address RS/6000 commercial applications and AS/400 systems, IBM Rochester (the home of the AS/400s) started developing the first of the high-end 64-bit PowerPC processors with AS/400 extensions, and IBM ...
... Examples of applications include supply chain optimization and logistics modeling of consumer behavior, including word of mouth and social network effects distributed computing workforce ... In these and other applications, the system of interest is simulated by capturing the behavior of individual agents and their interconnections ...
... Cloncurry, Queensland is to be the site of a 10 MW power station using 8,000 mirrors to reflect sunlight onto graphite blocks ... Water pumped through the blocks will be turned into steam to power a conventional steam turbine connected to a generator ...
Famous quotes containing the word commercial:
“There is every reason to rejoice with those self-styled prophets of commercial disaster, those harbingers of gloom,
Over the imminent lateness of the denouement that, advancing slowly, never arrives,
At the same time keeping the door open to a tongue-in-cheek attitude on the part of the perpetrators....”
—John Ashbery (b. 1927)