losses of compression

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• Compression — A&V Improper video signal level caused by nonlinearity in a circuit s transfer function. Results in lack of detail in either the black or white areas of the video picture. Can also be caused by pointing a video camera at a scene that has a total… …   Audio and video glossary

• Lossless data compression — is a class of data compression algorithms that allows the exact original data to be reconstructed from the compressed data. The term lossless is in contrast to lossy data compression, which only allows an approximation of the original data to be… …   Wikipedia

• Homogeneous charge compression ignition — Thermodynamics …   Wikipedia

• Homogeneous Charge Compression Ignition — Homogeneous Charge Compression Ignition, or HCCI, is a form of internal combustion in which well mixed fuel and oxidizer (typically air) are compressed to the point of auto ignition. As in other forms of combustion, this exothermic reaction… …   Wikipedia

• Explosively pumped flux compression generator — An explosively pumped flux compression generator (EPFCG) is a device used to generate a high power electromagnetic pulse by compressing magnetic flux using high explosive.An EPFCG can be used only once as a pulsed power supply since the device is …   Wikipedia

• Psychoacoustics — is the study of subjective human perception of sounds. Alternatively it can be described as the study of the psychological correlates of the physical parameters of acoustics. Background Hearing is not a purely mechanical phenomenon of wave… …   Wikipedia

• Jake brake — is a trademark for vehicle retarding systems, or engine brakes, developed and manufactured by Jacobs Vehicle Systems, Inc. The trademark JAKE BRAKE should not be used to refer to engine brakes in general. An engine brake is a braking system used… …   Wikipedia

• Stirling cycle — This article is about the real Stirling cycle. For the idealized Stirling cycle , see the Stirling engine article. IntroductionThe Stirling cycle is a thermodynamic cycle that describes the general class of Stirling devices. This includes the… …   Wikipedia

• Engine efficiency — of thermal engines is the relationship between the total energy contained in the fuel, and the amount of energy used to perform useful work. There are two classifications of thermal engines (1) Internal combustion (gasoline, diesel and gas… …   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

• Compressed-air energy storage — (CAES) refers to the compression of airto be used later as energy source. At utility scale, it can be stored during periods of low energy demand (off peak), for use in meeting periods of higher demand (peak load). Alternatively it can be used to… …   Wikipedia