Core size — is a parameter used in aeroengine performance engineering to enable a size comparison between jet engine (e.g. turbofan) cores. The alternative core power parameter is more difficult to compute, but has the advantage that it takes into account… … Wikipedia
Very high temperature reactor — The Very High Temperature Reactor is a Generation IV reactor concept that uses a graphite moderated nuclear reactor with a once through uranium fuel cycle. This reactor design envisions an outlet temperature of 1000°C. The reactor core can be… … Wikipedia
Core power — is a parameter used in aeroengine performance engineering to enable a comparison of the power capabilities of jet engine (e.g. turbofan) cores. Although the alternative core size parameter is easier to compute, it only takes into account the… … Wikipedia
Jet engine performance — This article describes how jet engine performance is estimated during the design phase. Similar techniques are used once the engine has been built and is being tested, except the performance of individual components, rather than being assumed, is … Wikipedia
Components of jet engines — Diagram of a typical gas turbine jet engine. Air is compressed by the fan blades as it enters the engine, and it is mixed and burned with fuel in the combustion section. The hot exhaust gases provide forward thrust and turn the turbines which… … Wikipedia
Combustor — Flame stabilized by cyclone. A combustor is a component or area of a gas turbine, ramjet, or scramjet engine where combustion takes place. It is also known as a burner, combustion chamber or flame holder. In a gas turbine engine, the combustor or … Wikipedia
Gaseous fission reactor — A gas nuclear reactor (or gas fueled reactor ) limits the only temperature limiting materials in a reactor to the reactor walls. A limitation for conventional nuclear fission reactors is that if the nuclear fuel temperature were to rise too high… … Wikipedia
Cement mill — A 10 MW cement mill, output 270 tonnes per hour A cement mill (or finish mill in North American usage[1]) is the equipment used to grind the hard, nodular clinker from the cement kiln into the fine grey powder that is cement. Most cement is… … Wikipedia
Insect wing — Original veins and wing posture of a dragonfly. Hoverflies hovering to mate … Wikipedia
cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… … Universalium
nervous system, human — ▪ anatomy Introduction system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… … Universalium