excess-carrier density
61Internal combustion engine — The internal combustion engine is an engine in which the combustion of a fuel (normally a fossil fuel) occurs with an oxidizer (usually air) in a combustion chamber. In an internal combustion engine, the expansion of the high temperature and high …
62Airport — For other uses, see Airport (disambiguation). Pulkovo Airport in Saint Petersburg, Russia (2005) …
63Offset printing — Web fed offset lithographic press at speed …
64Copper indium gallium selenide solar cells — Copper indium gallium selenide (CuIn1 xGaxSe2 or CIGS) is a direct bandgap semiconductor useful for the manufacture of solar cells. Because the material strongly absorbs sunlight, a much thinner film is required than of other semiconductor… …
65Bahamas, The — <p></p> <p></p> Introduction ::Bahamas, The <p></p> Background: <p></p> Lucayan Indians inhabited the islands when Christopher COLUMBUS first set foot in the New World on San Salvador in 1492.… …
66Shot noise — Photon noise simulation. Shot noise is a type of electronic noise that may be dominant when the finite number of particles that carry energy (such as electrons in an electronic circuit or photons in an optical device) is sufficiently small so… …
67Speed limits in the United States — are set by each state or territory. Speed limits in the United States vary according to the type of road and land use. These speed limits do not exceed eighty miles per hour. Increments of five miles per hour are used. Additionally, these limits… …
68cañada — /keuhn yah deuh, yad euh/, n. Chiefly Western U.S. 1. a dry riverbed. 2. a small, deep canyon. [1840 50; < Sp, equiv. to cañ(a) CANE + ada n. suffix] * * * Canada Introduction Canada Background: A land of vast distances and rich natural resources …
69Canada — /kan euh deuh/, n. a nation in N North America: a member of the Commonwealth of Nations. 29,123,194; 3,690,410 sq. mi. (9,558,160 sq. km). Cap.: Ottawa. * * * Canada Introduction Canada Background: A land of vast distances and rich natural… …
70History of British Airways — London Heathrow Airport has been the main hub of British Airways since formation …
