engine cycle life
31gas-turbine engine — Introduction any internal combustion engine employing a gas as the working fluid used to turn a turbine. The term also is conventionally used to describe a complete internal combustion engine consisting of at least a compressor, a… …
32Wankel engine — The Wankel engine is a type of internal combustion engine which uses a rotary design to convert pressure into a rotating motion instead of using reciprocating pistons. Its four stroke cycle is generally generated in a space between the inside of… …
33Glow plug (model engine) — For the glow plugs used in automotive diesel engines, see Glowplug A glow plug (alternatively spelled glowplug or glow plug) is a device, similar to a spark plug, used to ignite the fuel in the very small internal combustion engines typically… …
34Half-Life 2 — Cover art showing the series protagonist, Gordon Freeman Developer(s) Valve Corporation …
35Half-Life (series) — Half Life series The series logo; lambda is a prominent symbol throughout Developers Valve Corporation Gearbox Software …
36Gas-generator cycle (rocket) — The gas generator cycle (also known as open cycle) is a power cycle of a bipropellant rocket engine. Some of the propellant is burned in a gas generator and the resulting hot gas is used to power the engine s pumps. The gas is then… …
37Emission test cycle — An emission test cycle, also known as a smog check, is a specified procedure for measuring pollutant emissions of engines. For emission measurements to be comparable for different engines in a category, the measurements are performed under a… …
38Traction engine — A traction engine is a self propelled steam engine used to move heavy loads on roads, plough ground or to provide power at a chosen location. The name derives from the Latin tractus , meaning drawn , since the prime function of any traction… …
39Entropy and life — Much writing has been devoted to Entropy and life. Research concerning the relationship between the thermodynamic quantity entropy and the evolution of life began in around the turn of the 20th century. In 1910, American historian Henry Adams… …
40business cycle — a recurrent fluctuation in the total business activity of a country. [1920 25] * * * Periodic fluctuation in the rate of economic activity, as measured by levels of employment, prices, and production. Economists have long debated why periods of… …
