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1 varying directly
The English-Russian dictionary general scientific > varying directly
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2 varying directly
Математика: изменяющийся прямо пропорционально -
3 varying
1. изменение2. изменяющий; изменяющийся -
4 directly
1. adv прямо, открыто, откровенноto come directly to the point — подойти прямо к сути дела, без обиняков заговорить о главном
2. adv непосредственно3. adv сразу, немедленно, тотчас очень скоро, вскоре4. adv полностью; точно5. adv по прямой линии6. cj разг. как толькоI will come directly I have finished — я приду, как только закончу
Синонимический ряд:1. at once (adj.) at once; immediately; instantaneously; instantly; promptly; quickly; right away2. candidly (adj.) candidly; frankly; honestly; openly3. face-to-face (adj.) face-to-face; individually; personally4. right (adj.) right; straight5. as soon as (other) as soon as; once; when6. as the crow flies (other) as the crow flies; dead; due; in a beeline; right; straight; straight ahead; straightly; undeviatingly7. away (other) away; contiguously; first off; forthwith; instanter; PDQ; right off; straight away; straight off; straightway8. bluntly (other) baldly; bluntly; brusquely; candidly; explicitly; expressly; flatly; frankly; honestly; openly; outright; outspokenly; plainly; point-blank; straight from the shoulder; straight out; straightforwardly; truthfully; unreservedly; without reserve9. face to face (other) face to face; in person10. immediately (other) at once; before you can say `Jack Robinson' (colloquial); immediately; in no time; instantaneously; instantly; now; on the spot; right away; right now; summarily; then and there; this minute; this second11. soon (other) after a short time; after a time; after a while; anon; any minute; before long; by and by; in a minute; in a moment; in a second; in a while; momentarily; presently; shortly; soon12. verbatim (other) direct; literally; literatim; verbatim; word for wordАнтонимический ряд:circuitously; deceitfully; later -
5 varying
1. изменение2. изменяющий; изменяющийся; варьирующий -
6 varying
изменяющий; изменение; различный -
7 directly
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8 directly
прямо; непосредственно -
9 slowly varying
The English-Russian dictionary general scientific > slowly varying
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10 slowly varying
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11 vary directly
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12 vary directly as
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13 varied directly
The English-Russian dictionary general scientific > varied directly
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14 vary directly
The English-Russian dictionary general scientific > vary directly
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15 system
1) система; комплекс2) совокупность•- absolutely consistent system - absolutely direct indecomposable system - absolutely free system - absolutely irreducible system - absolutely isolated system - allowable coordinate system - almost linear system - ample linear system - artificial feel system - automatic block system - automatic deicing system - binary relational system - binary-coded decimal system - block tooling system - Cartesian coordinate system - completely controllable system - completely ergodic system - completely hyperbolic system - completely identifiable system - completely integrable system - completely irreducible system - completely regular system - completely stable system - completely stratified system - complex number system - conical coordinate system - derivational formal system - differential equation system - differential selsyn system - digital counting system - digital transmission system - elliptic coordinate system - elliptic cylindrical coordinate system - externally inconsistent system - finite state system - finitely axiomatizable system - finitely presented system - fully characteristic quotient system - fundamental system of solutions - hydraulic lift system - integrated switching system - isomorphically embedded system - kernel normal system - linearly dependent system - linearly independent system - live hydraulic system - locking protection system - meteor-burst communication system - modular programming system - parabolic cylindrical coordinate system - permanent four-wheel drive system - pure independent system - radio telephone system - reactor protection system - real number system - receiver-amplifier crioelectric system - remote-cylinder hydraulic system - semantically consistent system - simply consistent system - simply incomplete system - simply ordered system - spherical coordinate system - strongly multiplicative system - structurally stable system - sufficiently general coordinate system - system of frequency curves - system of rational numbers - time multiplex system - time-division multiplex system - uniformly complete system - univalent system of notation - universal system of notation - weakly closed system - weighted number system -
16 White, Sir William Henry
SUBJECT AREA: Ports and shipping[br]b. 2 February 1845 Devonport, Englandd. 27 February 1913 London, England[br]English naval architect distinguished as the foremost nineteenth-century Director of Naval Construction, and latterly as a consultant and author.[br]Following early education at Devonport, White passed the Royal Dockyard entry examination in 1859 to commence a seven-year shipwright apprenticeship. However, he was destined for greater achievements and in 1863 passed the Admiralty Scholarship examinations, which enabled him to study at the Royal School of Naval Architecture at South Kensington, London. He graduated in 1867 with high honours and was posted to the Admiralty Constructive Department. Promotion came swiftly, with appointment to Assistant Constructor in 1875 and Chief Constructor in 1881.In 1883 he left the Admiralty and joined the Tyneside shipyard of Sir W.G. Armstrong, Mitchell \& Co. at a salary of about treble that of a Chief Constructor, with, in addition, a production bonus based on tonnage produced! At the Elswick Shipyard he became responsible for the organization and direction of shipbuilding activities, and during his relatively short period there enhanced the name of the shipyard in the warship export market. It is assumed that White did not settle easily in the North East of England, and in 1885, following negotiations with the Admiralty, he was released from his five-year exclusive contract and returned to public service as Director of Naval Construction and Assistant Controller of the Royal Navy. (As part of the settlement the Admiralty released Philip Watts to replace White, and in later years Watts was also to move from that same shipyard and become White's successor as Director of Naval Construction.) For seventeen momentous years White had technical control of ship production for the Royal Navy. The rapid building of warships commenced after the passing of the Naval Defence Act of 1889, which authorized directly and indirectly the construction of around seventy vessels. The total number of ships built during the White era amounted to 43 battleships, 128 cruisers of varying size and type, and 74 smaller vessels. While White did not have the stimulation of building a revolutionary capital ship as did his successor, he did have the satisfaction of ensuring that the Royal Navy was equipped with a fleet of all-round capability, and he saw the size, displacement and speed of the ships increase dramatically.In 1902 he resigned from the Navy because of ill health and assumed several less onerous tasks. During the construction of the Cunard Liner Mauretania on the Tyne, he held directorships with the shipbuilders Swan, Hunter and Wigham Richardson, and also the Parsons Marine Turbine Company. He acted as a consultant to many organizations and had an office in Westminster. It was there that he died in February 1913.White left a great literary legacy in the form of his esteemed Manual of Naval Architecture, first published in 1877 and reprinted several times since in English, German and other languages. This volume is important not only as a text dealing with first principles but also as an illustration of the problems facing warship designers of the late nineteenth century.[br]Principal Honours and DistinctionsKCB 1895. Knight Commander of the Order of the Danneborg (Denmark). FRS. FRSE. President, Institution of Civil Engineers; Mechanical Engineers; Marine Engineers. Vice- President, Institution of Naval Architects.Bibliography1877, A Manual of Naval Architecture, London.Further ReadingD.K.Brown, 1983, A Century of Naval Construction, London.FMWBiographical history of technology > White, Sir William Henry
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17 primary switch mode power supply
- импульсный источник электропитания с коммутацией тока на первичной стороне
импульсный источник электропитания с коммутацией тока на первичной стороне
-In primary switch mode power supplies, the AC mains voltage is first rectified and smoothed and then chopped ("switched"). Chopping means that the DC voltage is switched periodically at a frequency of 40 to 200 kHz using a power transistor.
In contrast to linearly regulated power supplies, the power transistor does not act as a variable resistor but as a switch instead. This generates a square-wave AC voltage that is transformed to the secondary circuit using a high-frequency transformer. In the secondary circuit, the voltage is rectifi ed and smoothed. The quantity of energy transformed to the secondary circuit is controlled, depending on the load, by varying the chopping rate. The longer the transistor is conductive, the higher is the quantity of energy transformed to the secondary circuit ( pulse width modulation).
Due to the use of high-frequency AC voltage, primary switch mode power supplies have the decisive advantage that their transformer can be of much smaller size than required for the transformation of low frequencies. This reduces the weight and the dissipation inside the unit. The effi ciency of these units is between 85 and 95 %. Since the output voltage does not directly depend on the input voltage, these units can be used for a wide input voltage range and can even be supplied with DC voltage. Furthermore, it is possible to buffer short-time mains voltage breakdowns up to 200 ms. However, the power failure buffering time is limited by the size of capacitor C1 since a longer buffering time requires a higher capacity and thus a bigger size of the capacitor. Especially in case of small power supplies this is not desirable.
Therefore, a practicable compromise has to be made between the size of the power supply and the buffering time.
Primary switch mode power supplies can be used for all purposes. For example, they are suitable for the supply of all kind of electronics as well as for electromechanical applications.
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Англо-русский словарь нормативно-технической терминологии > primary switch mode power supply
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