-
1 output falls
-
2 output
nвыпуск продукции, выработка продукции; произведенная продукция; производительность, мощность- average output
- current output
- effective output
- export output
- final output
- global industrial output
- gross output
- growth of industrial output
- import-substituting manufacturing output
- industrial output
- large output
- level of industrial output
- low output
- manufacturing output
- output ceiling
- output falls
- output increases
- output is equal to
- output rises
- per capita industrial output
- reduction in output to agreed levels
- rise in the general level of output
- specific output
- total gross output
- total output
- world industrial output
- world manufacturing output
- world mineral output
- zero growth of output -
3 function Ah
функция Ah (реле времени)
Задержка импульса при каждой подаче напряжения на управляющий вход.
[Интент]EN
function Ah
Pulse delayed relay (single cycle) with control signal.
[Schneider Electric]Параллельные тексты EN-RU
Function Ah
Pulse delayed relay (single cycle) with control signal
After power-up, pulsing or maintaining control contact C starts the timing T. A single cycle then starts with 2 timing periods T of equal duration (start with output in rest position).
Output R changes state at the end of the first timing period T and reverts to its initial position at the end of the second timing period T.
Control contact C must be reset in order to re-start the single flashing cycle.
[Schneider Electric]
Function Ah
Flashing single cycle by switch (not resettable)
After power-up, pressing or holding down the switch starts timing. At the end of timing, the output is energised. At the end of this second timing, the output falls back to its initial value.
[Crouzed]Функция Ah
Задержка импульса при каждой подаче напряжения на управляющий вход
После подачи питания на реле и последующей подачи импульса или постоянно напряжения на управляющий вход С выполняется отсчет паузы длительностью T, а затем такой же длительности импульса. По окончании паузы Т выход реле R замыкается, а по окончании длительности импульса - возвращается в исходное состояние.
Для возобновления такого же цикла формирования одного импульса необходимо вновь подать напряжение на управляющий вход.
[Перевод Интент]
Тематики
EN
Англо-русский словарь нормативно-технической терминологии > function Ah
-
4 fall
fo:l
1. past tense - fell; verb1) (to go down from a higher level usually unintentionally: The apple fell from the tree; Her eye fell on an old book.) caer2) ((often with over) to go down to the ground etc from an upright position, usually by accident: She fell (over).) caerse3) (to become lower or less: The temperature is falling.) bajar, descender4) (to happen or occur: Easter falls early this year.) caer5) (to enter a certain state or condition: She fell asleep; They fell in love.) caer6) ((formal: only with it as subject) to come as one's duty etc: It falls to me to take care of the children.) incumbir
2. noun1) (the act of falling: He had a fall.) caída2) ((a quantity of) something that has fallen: a fall of snow.) caída3) (capture or (political) defeat: the fall of Rome.) rendición, caída4) ((American) the autumn: Leaves change colour in the fall.) otoño•- falls- fallout
- his
- her face fell
- fall away
- fall back
- fall back on
- fall behind
- fall down
- fall flat
- fall for
- fall in with
- fall off
- fall on/upon
- fall out
- fall short
- fall through
fall1 n1. caída2. descensofall2 vb1. caer / caerse2. bajar / descendertr[fɔːl]1 (act of falling) caída3 (decrease) baja, descenso, disminución nombre femenino■ a fall in temperature un descenso de temperaturas, una bajada de temperaturas4 (defeat) caída5 SMALLAMERICAN ENGLISH/SMALL (autumn) otoño1 (gen) caer, caerse2 (hang loosely) caer3 (decrease) bajar, descender4 (slope downwards) bajar, descender5 (be defeated) caer; (be killed) caer, perecer6 (happen) caer■ night fell cayó la noche, anocheció, se hizo de noche8 (wind) amainar9 figurative use (at cricket) caerse1 SMALLRELIGION/SMALL la Caída\SMALLIDIOMATIC EXPRESSION/SMALLto fall asleep dormirseto fall flat figurative use salir mal, no tener el éxito deseadoto fall foul of tener problemas con, tener líos conto fall ill caer enfermo,-a, enfermarto fall from one's lips salir de la boca de unoto fall in love enamorarseto fall into conversation with somebody entablar una conversación con alguiento fall into the clutches of caer en las garras deto fall into the hands of caer en manos deto fall on one's feet tener mucha suerteto fall over backwards to do something hacer todo lo posible para hacer algo, desvivirse por hacer algoto fall over oneself to do something desvivirse por hacer algoto fall short no alcanzar (of, -)to fall silent callarseto fall to one's knees caerse de rodillasfall from grace caída en desgraciafall guy cabeza de turco, chivo expiatorio1) : caer, caerseto fall out of bed: caer de la camato fall down: caerse2) hang: caer3) descend: caer (dícese de la lluvia o de la noche), bajar (dícese de los precios), descender (dícese de la temperatura)4) : caer (a un enemigo), rendirsethe city fell: la ciudad se rindió5) occur: caerChristmas falls on a Friday: la Navidad cae en viernes6)to fall asleep : dormirse, quedarse dormido7)to fall from grace sin: perder la gracia8)to fall sick : caer enfermo, enfermarse9)to fall through : fracasar, caer en la nadato fall to : tocar a, corresponder athe task fell to him: le tocó hacerlofall n1) tumble: caída fto break one's fall: frenar uno su caídaa fall of three feet: una caída de tres pies2) falling: derrumbe m (de rocas), aguacero m (de lluvia), nevada f (de nieve), bajada f (de precios), disminución f (de cantidades)3) autumn: otoño m4) downfall: caída f, ruina f5) falls nplwaterfall: cascada f, catarata fadj.• otoñal adj.n.• baja s.f.• cascada s.f.• caída s.f.• otoño s.m.• tumbo s.m.v.(§ p.,p.p.: fell, fallen) = bajar v.• caer v.(§pres: caigo, caes...)• disminuir v.• retroceder v.
I fɔːl1) (tumble, descent) caída fto be heading o (esp AmE) riding for a fall — ir* camino al desastre
2) ( autumn) (AmE) otoño m3) ( decrease)a fall in temperature — un descenso de (las) temperaturas or de la temperatura
a fall in prices — una bajada or caída de precios
4) (defeat, collapse) caída f
II
1)a) ( tumble) caerse*to fall foul of somebody/something: he fell foul of the law/his boss — tuvo problemas con la ley/su jefe
b) ( descend) \<\<night/rain\>\> caer*2) \<\<temperature\>\> bajar, descender* (frml); \<\<price\>\> bajar, caer*; \<\<wind\>\> amainar3) (be captured, defeated)to fall (TO somebody) — \<\<city/country\>\> caer* (en manos or en poder de alguien)
4)to fall ill o (esp AmE) sick — caer* or (Esp tb) ponerse* enfermo, enfermarse (AmL)
to fall silent — callarse, quedarse callado
to fall into decay/disrepute — irse* deteriorando/desprestigiarse
b) ( enter)to fall into a trance/coma — entrar en trance/coma
to fall into a trap — caer* en una trampa
she fell into a deep sleep — se durmió profundamente; see also prey, victim
5)a) ( land)the stress falls on the first syllable — el acento cae or recae sobre la primera sílaba
b) ( into category)the problems fall into three categories — los problemas se pueden clasificar en tres tipos diferentes
6) ( be slain) (frml) caer* (frml)•Phrasal Verbs:- fall for- fall in- fall off- fall on- fall out- fall to[fɔːl] (vb: pt fell) (pp fallen)1. N1) (=tumble) caída fthe Fall — (Rel) la Caída
- be heading or riding for a fall2) [of building, bridge etc] derrumbamiento m; [of rocks] desprendimiento m; [of earth] corrimiento m3) (=decrease) disminución f; (in prices, temperature, demand) descenso m (in de); (Econ) baja f4) (=downfall) caída f, ocaso m; (=defeat) derrota f; [of city] rendición f, caída f; (from favour, power etc) alejamiento m5) (=slope) [of ground] declive m, desnivel m7) (US) (=autumn) otoño m2. VI1) (=fall down) [person, object] caerse•
to fall on one's feet — caer de pie; (fig) salir bien parado•
to fall to or on one's knees — arrodillarse, caer de rodillas- fall on one's ass- fall flatflat I, 1., 6)2) (=drop) [leaves, bomb, rain, snow, night] caer; [rocks] desprenderse•
he fell into bed exhausted — se desplomó en la cama, exhausto•
they left as darkness fell — partieron al caer la noche•
to let sth fall — dejar caer algoto let fall that... — soltar que...
•
night was falling — anochecía, se hacía de noche•
it all began to fall into place — (fig) todo empezó a encajar•
to fall short of sb's expectations — defraudar las esperanzas de algn•
to fall among thieves — (esp Bible) ir a parar entre ladrones3) [person] (morally etc) caer•
to fall from grace — (Rel) perder la gracia; (fig) caer en desgracia4) (=slope) [ground] descender, caer en declive5) (=hang) [hair, drapery] caer6) (=decrease) disminuir; [price, level, temperature etc] bajar, descender; [wind] amainar7) (=be defeated) [government] caer, ser derrotado; [city] rendirse, ser tomado9) (=become)•
to fall asleep — quedarse dormido, dormirse•
to fall heir to sth — heredar algo•
to fall ill — caer enfermo, enfermarse•
to fall in love (with sth/sb) — enamorarse (de algo/algn)3.CPDfall guy * N — (=easy victim) víctima f (de un truco); (=scapegoat) cabeza f de turco
- fall for- fall in- fall off- fall on- fall out- fall to* * *
I [fɔːl]1) (tumble, descent) caída fto be heading o (esp AmE) riding for a fall — ir* camino al desastre
2) ( autumn) (AmE) otoño m3) ( decrease)a fall in temperature — un descenso de (las) temperaturas or de la temperatura
a fall in prices — una bajada or caída de precios
4) (defeat, collapse) caída f
II
1)a) ( tumble) caerse*to fall foul of somebody/something: he fell foul of the law/his boss — tuvo problemas con la ley/su jefe
b) ( descend) \<\<night/rain\>\> caer*2) \<\<temperature\>\> bajar, descender* (frml); \<\<price\>\> bajar, caer*; \<\<wind\>\> amainar3) (be captured, defeated)to fall (TO somebody) — \<\<city/country\>\> caer* (en manos or en poder de alguien)
4)to fall ill o (esp AmE) sick — caer* or (Esp tb) ponerse* enfermo, enfermarse (AmL)
to fall silent — callarse, quedarse callado
to fall into decay/disrepute — irse* deteriorando/desprestigiarse
b) ( enter)to fall into a trance/coma — entrar en trance/coma
to fall into a trap — caer* en una trampa
she fell into a deep sleep — se durmió profundamente; see also prey, victim
5)a) ( land)the stress falls on the first syllable — el acento cae or recae sobre la primera sílaba
b) ( into category)the problems fall into three categories — los problemas se pueden clasificar en tres tipos diferentes
6) ( be slain) (frml) caer* (frml)•Phrasal Verbs:- fall for- fall in- fall off- fall on- fall out- fall to -
5 fall
A n1 lit (of person, horse, rocks, curtain) chute f (from de) ; (of snow, hail) chutes fpl ; (of earth, soot) éboulement m ; (of axe, hammer, dice) coup m ; a fall of 20 metres, a 20-metre fall une chute de 20 mètres ; a heavy fall of rain une grosse averse ; to have a fall faire une chute, tomber ;2 (in temperature, shares, production, demand, quality, popularity) baisse f (in de) ; ( more drastic) chute f (in de) ; the pound has suffered a sharp fall/a slight fall la livre a subi une forte chute/une légère baisse ; a fall in value une dépréciation ; a fall of 10% to 125 une baisse de 10% pour arriver à 125 ;3 (of leader, regime, empire, fortress, town) chute f ; ( of monarchy) renversement m ; ( of seat) perte f ; the government's fall from power la chute du gouvernement ;6 (in pitch, intonation) descente f ;1 ( come down) tomber ; falling rain la pluie qui tombe ; he was hurt by falling masonry il a été blessé par une pierre qui tombait de la façade ; to fall 10 metres tomber de 10 mètres ; five centimetres of snow fell il est tombé cinq centimètres de neige ; to fall from ou out of tomber de [boat, nest, bag, hands] ; to fall off ou from tomber de [chair, table, roof, bike, wall] ; the skirt falls in pleats from a waistband la jupe tombe en plis à partir de la ceinture ; to fall on tomber sur [person, town] ; it fell on my head cela m'est tombé sur la tête ; to fall on the floor tomber par terre ; to fall on one's back tomber sur le dos ; to fall in ou into tomber dans [bath, river, sink] ; to fall down tomber dans [hole, shaft, stairs] ; to fall under tomber sous [table] ; passer sous [bus, train] ; to fall through passer à travers [ceiling, hole] ; to fall through the air tomber dans le vide ; to fall to earth tomber sur terre ; to fall to the floor ou to the ground tomber par terre ;2 ( drop) [speed, volume, quality, standard, level] diminuer ; [temperature, price, inflation, wages, production, number, attendance, morale] baisser ; ( more dramatically) chuter ○, tomber ; to fall (by) baisser de [amount, percentage] ; to fall to descendre à [amount, place] ; to fall from descendre de ; to fall below zero/5% descendre au-dessous de zéro/5% ; to fall in the charts perdre des places dans le hit-parade ;3 ( yield position) tomber ; to fall from power tomber ; to fall to tomber aux mains de [enemy, allies] ; the seat fell to Labour le siège a été perdu au profit des travaillistes ;5 fig ( descend) [darkness, night, beam, silence, gaze] tomber (on sur) ; [blame] retomber (on sur) ; [shadow] se projeter (over sur) ; suspicion fell on her husband les soupçons se sont portés sur son mari ;6 ( occur) [stress] tomber (on sur) ; Christmas falls on a Monday Noël tombe un lundi ; to fall into/outside a category rentrer/ne pas rentrer dans une catégorie ; to fall under the heading of… se trouver sous la rubrique de… ;7 ( be incumbent on) it falls to sb to do c'est à qn de faire, c'est à qn qu'il incombe de faire fml ;8 ( throw oneself) to fall into bed/into a chair se laisser tomber sur son lit/dans un fauteuil ; to fall to ou on one's knees tomber à genoux ; to fall at sb's feet se jeter aux pieds de qn ; to fall into sb's/each other's arms tomber dans les bras de qn/l'un de l'autre ; to fall on each other s'embrasser, tomber dans les bras l'un de l'autre ; to fall on sb's neck se jeter au cou de qn ;9 [ground] = fall away 2 ;10 Relig succomber ;11 GB dial ( get pregnant) tomber enceinte.did he fall or was he pushed? hum est-ce qu'il est parti de lui-même ou est-ce qu'on l'a forcé? ; the bigger you are ou the higher you climb, the harder you fall plus dure sera la chute ; to stand or fall on sth reposer sur qch, dépendre de qch.1 [bike, table] être délabré ; [shoes] être usé ; [car, house, hotel] tomber en ruine ;2 [marriage, country] se désagréger ;3 ○ [person] craquer ○, perdre ses moyens.1 [paint, plaster] se détacher (from de) ;2 [ground] descendre en pente (to vers) ;3 [demand, support, numbers] diminuer.■ fall back on:▶ fall back on [sth] avoir recours à [savings, parents, old method] ; to have something to fall back on avoir quelque chose sur quoi se rabattre.■ fall behind:▶ fall behind [runner, country, student] se laisser distancer ; [work, studies] prendre du retard ; to fall behind with GB ou in US prendre du retard dans [work, project] ; être en retard pour [payments, rent, correspondence] ;▶ fall behind [sth/sb] se laisser devancer par [horses, classmates, competitors].■ fall down:1 lit [person, child, tree, poster] tomber ; [tent, wall, house, scaffolding] s'effondrer ; this whole place is falling down tout tombe en ruine ici ;2 GB fig [argument, comparison, plan] faiblir ; where he falls down is… là où il faiblit, c'est… ; to fall down on échouer à cause de [detail, question, obstacle] ; to fall down on a promise/on the job être incapable de tenir sa promesse/de faire le travail.■ fall for:▶ fall for [sth] se laisser prendre à, se faire avoir ○ par [trick, story] ;▶ fall for [sb] tomber amoureux/-euse de [person].■ fall in1 [sides, walls, roof] s'écrouler, s'effondrer ;■ fall in with:▶ fall in with [sth/sb]1 ( get involved with) faire la connaissance de [group] ; to fall in with a bad crowd avoir de mauvaises fréquentations ;2 ( go along with) se conformer à [timetable, plans, action] ;3 ( be consistent with) être conforme à [expectations, concerns].■ fall off1 lit [person, leaf, hat, label] tomber ;2 fig [attendance, takings, sales, output] diminuer ; [enthusiasm, standard, quality] baisser ; [support, interest] retomber ; [curve on graph] décroître.■ fall on:▶ fall on [sth] se jeter sur [food, treasure] ;▶ fall on [sb] attaquer, tomber sur [person].■ fall out:▶ fall out1 [page, contact lens] tomber ; his hair/tooth fell out il a perdu ses cheveux/une dent ;3 ○ ( quarrel) se brouiller, se fâcher (over à propos de) ; to fall out with sb GB ( quarrel) se brouiller or se fâcher avec qn ; US ( have fight) se disputer avec qn ; I've fallen out with him GB je suis brouillé or fâché avec lui ;■ fall over:▶ fall over [sth] trébucher sur [object] ; to fall over oneself to help sb ○ se mettre en quatre ○ pour aider qn ; people were fall ing over themselves to buy shares c'était à qui achèterait les actions.■ fall through [plans, deal] échouer, tomber à l'eau ○.■ fall to:▶ fall to attaquer ;▶ fall to doing se mettre à faire. -
6 Stanley, Robert Crooks
[br]b. 1 August 1876 Little Falls, New Jersey, USAd. 12 February 1951 USA[br]American mining engineer and metallurgist, originator of Monel Metal[br]Robert, the son of Thomas and Ada (Crooks) Stanley, helped to finance his early training at the Stevens Institute of Technology, Hoboken, New Jersey, by working as a manual training instructor at Montclair High School. After graduating in mechanical engineering from Stevens in 1899, and as a mining engineer from the Columbia School of Mines in 1901, he accepted a two-year assignment from the S.S.White Dental Company to investigate platinum-bearing alluvial deposits in British Columbia. This introduced him to the International Nickel Company (Inco), which had been established on 29 March 1902 to amalgamate the major mining companies working the newly discovered cupro-nickel deposits at Sudbury, Ontario. Ambrose Monell, President of Inco, appointed Stanley as Assistant Superintendent of its American Nickel Works at Camden, near Philadelphia, in 1903. At the beginning of 1904 Stanley was General Superintendent of the Orford Refinery at Bayonne, New Jersey, where most of the output of the Sudbury mines was treated.Copper and nickel were separated there from the bessemerized matte by the celebrated "tops and bottoms" process introduced thirteen years previously by R.M.Thompson. It soon occurred to Stanley that such a separation was not invariably required and that, by reducing directly the mixed matte, he could obtain a natural cupronickel alloy which would be ductile, corrosion resistant, and no more expensive to produce than pure copper or nickel. His first experiment, on 30 December 1904, was completely successful. A railway wagon full of bessemerized matte, low in iron, was calcined to oxide, reduced to metal with carbon, and finally desulphurized with magnesium. Ingots cast from this alloy were successfully forged to bars which contained 68 per cent nickel, 23 per cent copper and about 1 per cent iron. The new alloy, originally named after Ambrose Monell, was soon renamed Monel to satisfy trademark requirements. A total of 300,000 ft2 (27,870 m2) of this white, corrosion-resistant alloy was used to roof the Pennsylvania Railway Station in New York, and it also found extensive applications in marine work and chemical plant. Stanley greatly increased the output of the Orford Refinery during the First World War, and shortly after becoming President of the company in 1922, he established a new Research and Development Division headed initially by A.J.Wadham and then by Paul D. Merica, who at the US Bureau of Standards had first elucidated the mechanism of age-hardening in alloys. In the mid- 1920s a nickel-ore body of unprecedented size was identified at levels between 2,000 and 3,000 ft (600 and 900 m) below the Frood Mine in Ontario. This property was owned partially by Inco and partially by the Mond Nickel Company. Efficient exploitation required the combined economic resources of both companies. They merged on 1 January 1929, when Mond became part of International Nickel. Stanley remained President of the new company until February 1949 and was Chairman from 1937 until his death.[br]Principal Honours and DistinctionsAmerican Society for Metals Gold Medal. Institute of Metals Platinum Medal 1948.Further ReadingF.B.Howard-White, 1963, Nickel, London: Methuen (a historical review).ASD -
7 Epistemology
1) Beyond Psychophysiology and Sociology and History of Science There Is Nothing for Epistemology to DoIf we have psychophysiology to cover causal mechanisms, and the sociology and history of science to note the occasions on which observation sentences are invoked or dodged in constructing and dismantling theories, then epistemology has nothing to do. (Rorty, 1979, p. 225)But I think that at this point it may be more useful to say rather that epistemology still goes on, though in a new setting and a clarified status. Epistemology, or something like it, simply falls into place as a chapter of psychology and hence of natural science. It studies a natural phenomenon, viz, a physical human subject. This human subject is accorded a certain experimentally controlled input-certain patterns of irradiation in assorted frequencies, for instance-and in the fullness of time the subject delivers as output a description of the three-dimensional external world and its history. The relation between the meager input and the torrential output is a relation that we are prompted to study for somewhat the same reasons that always prompted epistemology; namely, in order to see how evidence relates to theory, and in what ways one's theory of nature transcends any available evidence. (Quine, quoted in Royce & Rozeboom, 1972, p. 18)3) The Assumption That Cognitive Psychology Has Epistemological Import Can Be ChallengedOnly the assumption, that one day the various taxonomies put together by, for example, Chomsky, Piaget, Leґvi-Strauss, Marx, and Freud will all flow together and spell out one great Universal Language of Nature... would suggest that cognitive psychology had epistemological import. But that suggestion would still be as misguided as the suggestion that, since we may predict everything by knowing enough about matter in motion, a completed neurophysiology will help us demonstrate Galileo's superiority to his contemporaries. The gap between explaining ourselves and justifying ourselves is just as great whether a programming language or a hardware language is used in the explanations. (Rorty, 1979, p. 249)Historical dictionary of quotations in cognitive science > Epistemology
-
8 fall away
1) покидать, изменять Some of our formerly loyal members have fallen away. ≈ Некоторые из верных нам людей недавно ушли от нас.
2) спадать;
уменьшаться Student numbers have been falling away recently. ≈ Наплыв студентов спал в последнее время.
3) чахнуть, сохнуть Her face has fallen away since she lost weight. ≈ Ее лицо осунулось с тех пор, как она потеряла в весе.
4) исчезать The wind fell away and all was calm. ≈ Ветер стих, и все успокоилось. His smile fell away when he saw who his visitor was. ≈ Улыбка улетучилась с его лица, когда он увидел, кто к нему пожаловал. покидать, изменять - all his old friends fell away from him все старые друзья покинули его отступаться( от веры, убеждений и т. п.) уменьшаться, спадать, ослабевать - in London trade always falls away during the summer торговля в Лондоне всегда идет хуже летом - output fell away sharply выпуск продукции резко упал - to * to a certain level опуститься до определенного предела худеть;
терять в весе отпадать - prejudices fell away предрассудки были изжиты постепенно сходить вниз;
спускаться - woodland falls away to the river-bank лес спускается к самому берегу рекиБольшой англо-русский и русско-английский словарь > fall away
-
9 fall away
[ʹfɔ:ləʹweı] phr v1. 1) покидать, изменять2) отступаться (от веры, убеждений и т. п.)2. 1) уменьшаться, спадать, ослабеватьin London trade always falls away during the summer - торговля в Лондоне всегда идёт хуже летом
2) худеть; терять в весе3. отпадать4. постепенно сходить вниз; спускатьсяwoodland falls away to the river-bank - лес спускается к самому берегу реки
-
10 pressure
1) давление; напор2) нажатие; сжатие3) нажим || нажимной5) прессование6) тиснение7) полигр. натиск, давление печатания8) нагнетательный; напорный•to boost pressure — повышать [поднимать] давление
- vapour pressureto move against pressure — преодолевать давление; противостоять давлению
-
11 cascade
1. n каскад, небольшой водопад2. n тех. каскад, ступень3. n тех. последовательное соединение; последовательное включениеcascade connection — каскадное соединение; каскадное включение
4. v низвергаться5. v ниспадать6. v груб. рвать, блеватьСинонимический ряд:1. deluge (noun) deluge; downpour; torrent2. movement of water (noun) fall; movement of water; rapids; rivulet; watercourse3. waterfall (noun) cataract; chute; falls; sault; spout; waterfall4. plunge (verb) plunge; pour; rush; surge; tumble5. pour out (verb) drain; gush; overflow; pour out; spurt; squirtАнтонимический ряд:drip; trickle -
12 Black, Harold Stephen
[br]b. 14 April 1898 Leominster, Massachusetts, USAd. 11 December 1983 Summitt, New Jersey, USA[br]American electrical engineer who discovered that the application of negative feedback to amplifiers improved their stability and reduced distortion.[br]Black graduated from Worcester Polytechnic Institute, Massachusetts, in 1921 and joined the Western Electric Company laboratories (later the Bell Telephone Laboratories) in New York City. There he worked on a variety of electronic-communication problems. His major contribution was the discovery in 1927 that the application of negative feedback to an amplifier, whereby a fraction of the output signal is fed back to the input in the opposite phase, not only increases the stability of the amplifier but also has the effect of reducing the magnitude of any distortion introduced by it. This discovery has found wide application in the design of audio hi-fi amplifiers and various control systems, and has also given valuable insight into the way in which many animal control functions operate.During the Second World War he developed a form of pulse code modulation (PCM) to provide a practicable, secure telephony system for the US Army Signal Corps. From 1963–6, after his retirement from the Bell Labs, he was Principal Research Scientist with General Precision Inc., Little Falls, New Jersey, following which he became an independent consultant in communications. At the time of his death he held over 300 patents.[br]Principal Honours and DistinctionsInstitute of Electronic and Radio Engineers Lamme Medal 1957.Bibliography1934, "Stabilised feedback amplifiers", Electrical Engineering 53:114 (describes the principles of negative feedback).21 December 1937, US patent no. 2,106,671 (for his negative feedback discovery.1947, with J.O.Edson, "Pulse code modulation", Transactions of the American Institute of Electrical Engineers 66:895.1946, "A multichannel microwave radio relay system", Transactions of the American Institute of Electrical Engineers 65:798.1953, Modulation Theory, New York: D.van Nostrand.1988, Laboratory Management: Principles \& Practice, New York: Van Nostrand Rheinhold.Further ReadingFor early biographical details see "Harold S. Black, 1957 Lamme Medalist", Electrical Engineering (1958) 77:720; "H.S.Black", Institute of Electrical and Electronics Engineers Spectrum (1977) 54.KF
См. также в других словарях:
output — ▪ I. output out‧put 1 [ˈaʊtpʊt] noun 1. [countable, uncountable] ECONOMICS MANUFACTURING the amount of goods or services produced by a person, machine, factory, company etc; = OUTTURN: • The plant … Financial and business terms
Gesetz des tendenziellen Falls der Profitrate — Unter dem Gesetz des tendenziellen Falls der Profitrate (Marx: Gesetz vom tendenziellen Fall der Profitrate) versteht man ein zentrales marxistisches Theorem, das Karl Marx im 3. Band seines Hauptwerks Das Kapital entwickelt hat. Es sagt aus,… … Deutsch Wikipedia
Churchill Falls Generating Station — Churchill Falls Generating Station … Wikipedia
Kakabeka Falls Generating Station — is a hydroelectric facility operated by Ontario Power Generation on the bank of the Kaministiquia River, km to mi|2|abbr=yes|precision=0 downstream from Kakabeka Falls in the community of Kakabeka Falls, Ontario, km to mi|30|abbr=yes|precision=0… … Wikipedia
Great Falls — • Created by Pope Pius X, 18 May, 1904; comprises the following counties in the State of Montana: Carbon, Cascade, Chouteau, Custer, Dawson, Fergus, Park, Rosebud, Sweet Grass, Valley, and Yellowstone Catholic Encyclopedia. Kevin Knight. 2006.… … Catholic encyclopedia
Niagara Falls — For other uses, see Niagara Falls (disambiguation). Niagara Falls A view of th … Wikipedia
Mobile-Document-Output-Systeme — (MDOS oder MDO Systeme) sind Systeme, die digitale Dokumente serverseitig aufbereiten, um diese auf Mobilgeräten les oder verarbeitbar zur Verfügung zu stellen. Neben der Ausgabe eines Dokuments auf den Mobilgeräten selbst, z. B. zur Darstellung… … Deutsch Wikipedia
Chaudière Falls — For the identically named falls on the Chaudière River, see Chutes de la Chaudière. Chaudière Falls in June 2006, at summer water levels The Chaudière Falls are a set of cascades and waterfall in the centre of the Ottawa Gatineau metropolitan… … Wikipedia
Snoqualmie Falls — Infobox Waterfall name = Snoqualmie Falls caption = Snoqualmie Falls as seen from the pavilion above. location = West of Snoqualmie, Washington latitude = 47.54192 longitude = 121.83685 elevation = type = Curtain height = 268ft (82m) height… … Wikipedia
Kettle Falls — (Salish: Shonitkwu, meaning roaring or noisy waters cite web | title=Kettle Falls | url=http://www.historylink.org/essays/output.cfm?file id=7577 | last=Tate | First=Cassandra | date=2005 12 27 | accessdate=2008 04 22] ) was an ancient and… … Wikipedia
Island Falls, Saskatchewan — Island Falls is a hydroelectric power station operated by SaskPower, a Saskatchewan crown corporation. It is located on the Churchill River at 55.5° N, 102.4° W, about sixty miles (100 km) northwest of Flin Flon, Manitoba, Canada.Island Falls was … Wikipedia