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mechanical operator

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  • quantum-mechanical operator — kvantmechaninis operatorius statusas T sritis fizika atitikmenys: angl. quantum mechanical operator vok. quantenmechanischer Operator, m rus. квантовомеханический оператор, m pranc. opérateur de mécanique quantique, m …   Fizikos terminų žodynas

  • Mechanical advantage — is a measure of the force amplification achieved by using a tool, mechanical device or machine system. Ideally, the device preserves the input power and simply trades off forces against movement to obtain a desired amplification in the output… …   Wikipedia

  • Mechanical screening — Mechanical screening, often just called screening, is the practice of taking granulated ore material and separating it into multiple grades by particle size. This practice occurs in a variety of industries such as mining and mineral processing,… …   Wikipedia

  • operator — 1590s, one who performs mechanical or surgical operations, agent noun from OPERATE (Cf. operate) (v.). Meaning one who carries on business shrewdly is from 1828. Specific sense of one who works a telephone switchboard (1884) grew out of earlier… …   Etymology dictionary

  • Mechanical filter — Figure 1. A mechanical filter made by the Kokusai Electric Company intended for selecting the narrow 2 kHz bandwidth signals in SSB radio receivers. It operates at 455 kHz, a common IF for these receivers, and is dimensioned 45×15×15 mm ( …   Wikipedia

  • Mechanical bull — Gator Conley on a mechanical bull A mechanical bull, also known as a rodeo bull or bucking bronco is a machine that replicates the sensation of riding a bucking animal, such as a rodeo bull or horse. It is usually powered by a variable speed… …   Wikipedia

  • Mechanical calculator — An old Russian mechanical calculator. A mechanical calculator is a device used to perform the basic operations of arithmetic. Mechanical calculators are comparable in size to small desktop computers and have been rendered obsolete by the advent… …   Wikipedia

  • Operator No. 5 — The correct title of this article is Operator #5. The substitution or omission of the # sign is because of technical restrictions. Operator #5 Cover of issue #26, Death s Ragged Army, which began the Purple Invasion story arc. ©Argosy… …   Wikipedia

  • mechanical shovel — /məˌkænɪkəl ˈʃʌvəl/ (say muh.kanikuhl shuvuhl) noun 1. a manually powered shovel comprising a digging tool, two booms and a harness, the boom with the harness going behind the operator and the other with the digging tool going before, with a… …  

  • mechanical failure — An accident occurring from a defect inherent in an instrumentality rather than from the act or omission of the operator …   Ballentine's law dictionary

  • Exchange operator — The Exchange operator, is a quantum mechanical operator used in the field of quantum chemistry. Specifically, it is a term found in the Fock operator. It is defined as:hat K j (1) f(1)= varphi j(1) int { frac{varphi j^*(2)f(2)}{r {12dv 2}where… …   Wikipedia

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