train frequency

См. также в других словарях:

• Train Protection & Warning System — The Train Protection Warning System (TPWS) is a train protection system deployed across the entire UK passenger railway network, as well as in Victoria, Australia. [ [http://www.networkrailmediacentre.co.uk/content/detail.asp?NewsAreaID=2… …   Wikipedia

• Frequency comb — A frequency comb is the graphic representation of the spectrum of a mode locked laser. An octave spanning comb can be used for mapping radio frequencies into the optical frequency range or it can be used to steer a piezoelectric mirror within a… …   Wikipedia

• Train whistle — A train whistle or air whistle, (originally referred to as a steam trumpet), is an audible signaling device on a steam locomotive used to warn that the train is approaching, and to communicate with rail workers.The older steam whistles were… …   Wikipedia

• Train horn — Nathan model M5 locomotive air horn Train horns are audible warning devices found on most diesel and electric locomotives. Their primary purpose is to alert persons and animals to the presence of a train, especially when approaching a grade… …   Wikipedia

• Radio-frequency identification — (RFID) is a technology that uses radio waves to transfer data from an electronic tag, called RFID tag or label, attached to an object, through a reader for the purpose of identifying and tracking the object. Some RFID tags can be read from… …   Wikipedia

• O-Train — For the basketball player nicknamed O Train , see Oscar Robertson. O Train Info Loc …   Wikipedia

• Utility frequency — The waveform of 230 volt, 50 Hz compared with 110 V, 60 Hz. The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency at which alternating current (ac, also AC) is transmitted from a… …   Wikipedia

• Ottawa O-Train — Infobox Public transit name= Ottawa O Train transit type= Light Rail locale=Ottawa, Ontario lines=1 began operation=2001 system length = 8 km stations = 5 ridership =Up to 10,000 [http://www.octranspo.com/train menue.htm O Train Facts] track… …   Wikipedia

• S-train — An A S train ready to depart from Copenhagen Central Station …   Wikipedia

• Enterprise (train) — Infobox Rail companies bgcolor=FFFFFF logo filename=Enterprise (train service).png widthpx=100px image filename=Enterprise Train Lisburn 2007.jpg widthpx=300px franchise=N/A nameforarea=station regions=Dublin Connolly, Belfast Central… …   Wikipedia

• Sprinter (Victorian train) — Infobox Train name=Goninan Sprinter imagesize = 300px caption = Sprinter 7009 leading two others in original V/Line Passenger livery interior interiorcaption = Interior of an non refubished Sprinter Capacity = 90 economy seats, 3x2. 113 maximum.… …   Wikipedia