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
Compressed sensing — Compressed sensing, also known as compressive sensing, compressive sampling and sparse sampling, is a technique for finding sparse solutions to underdetermined linear systems. In electrical engineering, particularly in signal processing,… … Wikipedia
Compressed air energy storage — Conceptual representation of the compressed air energy storage concept. Off peak (low cost) electrical power compresses air into an underground air storage “vessel” (the Norton mine), and later the air feeds a gas fired turbine generator complex… … Wikipedia
Compressed air car — Tata/MDI OneCAT A compressed air car is a car that uses a motor powered by compressed air. The car can be powered solely by air, or combined (as in a hybrid electric vehicle) with gasoline, diesel, ethanol, or an electric plant with regenerative… … Wikipedia
Compressed data structure — The term compressed data structure arises in the computer science subfields of algorithms, data structures, and theoretical computer science. It refers to a data structure whose operations are roughly as fast as those of a conventional data… … Wikipedia
JPG file — highly compressed picture file which loses a small amount of detail during the compression process (Computers) … English contemporary dictionary
MPEG file — highly compressed video or sound file which loses a small amount of quality during compression … English contemporary dictionary
tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening … Universalium
technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… … Universalium
Nuclear weapon design — The first nuclear weapons, though large, cumbersome and inefficient, provided the basic design building blocks of all future weapons. Here the Gadget device is prepared for the first nuclear test: Trinity. Nuclear weapon designs are physical,… … Wikipedia
Teller–Ulam design — The basics of the Teller–Ulam design. Radiation from a primary fission bomb compresses a secondary section containing both fission and fusion fuel. The compressed secondary is heated from within by a second fission explosion. The Teller–Ulam… … Wikipedia