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1 frequency principle
Телекоммуникации: частотный принцип -
2 frequency principle
English-Russian dictionary of telecommunications and their abbreviations > frequency principle
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3 principle
- code-pulse principle
- combined principle
- continuity principle
- coordinate link principle
- direct communication principle
- frequency principle
- group principle
- Hartley principle
- Huygens principle
- interpolation principle
- network-decomposition principle
- open circuit principle
- principle of pattern multiplication principle
- pulsations multiplying principle
- pulse-amplitude principle
- radial principle
- radio wiring principle
- reciprocity principle
- station-by-station principle
- time-pulse principle
- voltage-compensation principleEnglish-Russian dictionary of telecommunications and their abbreviations > principle
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4 principle
принцип; закон; правилоprinciple of complementary virtual workprinciple of minimum complementary energyprinciple of minimum potential energyprinciple of stationary potentialprinciple of virtual workarea rule principleBellman's optimality principled'Alembert's principledamage tolerance principledesign-for-reliability principledisplay principleHamilton's principleHu-Washizu variational principleleast-commitment principlelights-out principlelinear quadratic optimization principlemax-min principleminimum principleminimum energy principlePontryagin's maximum principleRayleigh's principleseparation principletemperature-frequency superposition principlevariational principlevirtual work principle -
5 frequency-of-use principle
Контроль качества: принцип установки наиболее часто осматриваемых деталей в наиболее доступных местах, принцип установки наиболее часто осматриваемых или ремонтируемых деталей в наиболее доступных местах, принцип установки наиболее часто ремонтируемых деталей в наиболее доступных местахУниверсальный англо-русский словарь > frequency-of-use principle
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6 frequency-of-use principle
принцип размещения наиболее часто осматриваемых или ремонтируемых деталей в наиболее доступных местахThe English-Russian dictionary on reliability and quality control > frequency-of-use principle
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7 temperature-frequency superposition principle
принцип суперпозиции [наложения] температурного и частотного эффектов -
8 Armstrong, Edwin Howard
[br]b. 18 December 1890 New York City, New York, USAd. 31 January 1954 New York City, New York, USA[br]American engineer who invented the regenerative and superheterodyne amplifiers and frequency modulation, all major contributions to radio communication and broadcasting.[br]Interested from childhood in anything mechanical, as a teenager Armstrong constructed a variety of wireless equipment in the attic of his parents' home, including spark-gap transmitters and receivers with iron-filing "coherer" detectors capable of producing weak Morse-code signals. In 1912, while still a student of engineering at Columbia University, he applied positive, i.e. regenerative, feedback to a Lee De Forest triode amplifier to just below the point of oscillation and obtained a gain of some 1,000 times, giving a receiver sensitivity very much greater than hitherto possible. Furthermore, by allowing the circuit to go into full oscillation he found he could generate stable continuous-waves, making possible the first reliable CW radio transmitter. Sadly, his claim to priority with this invention, for which he filed US patents in 1913, the year he graduated from Columbia, led to many years of litigation with De Forest, to whom the US Supreme Court finally, but unjustly, awarded the patent in 1934. The engineering world clearly did not agree with this decision, for the Institution of Radio Engineers did not revoke its previous award of a gold medal and he subsequently received the highest US scientific award, the Franklin Medal, for this discovery.During the First World War, after some time as an instructor at Columbia University, he joined the US Signal Corps laboratories in Paris, where in 1918 he invented the superheterodyne, a major contribution to radio-receiver design and for which he filed a patent in 1920. The principle of this circuit, which underlies virtually all modern radio, TV and radar reception, is that by using a local oscillator to convert, or "heterodyne", a wanted signal to a lower, fixed, "intermediate" frequency it is possible to obtain high amplification and selectivity without the need to "track" the tuning of numerous variable circuits.Returning to Columbia after the war and eventually becoming Professor of Electrical Engineering, he made a fortune from the sale of his patent rights and used part of his wealth to fund his own research into further problems in radio communication, particularly that of receiver noise. In 1933 he filed four patents covering the use of wide-band frequency modulation (FM) to achieve low-noise, high-fidelity sound broadcasting, but unable to interest RCA he eventually built a complete broadcast transmitter at his own expense in 1939 to prove the advantages of his system. Unfortunately, there followed another long battle to protect and exploit his patents, and exhausted and virtually ruined he took his own life in 1954, just as the use of FM became an established technique.[br]Principal Honours and DistinctionsInstitution of Radio Engineers Medal of Honour 1917. Franklin Medal 1937. IERE Edison Medal 1942. American Medal for Merit 1947.Bibliography1922, "Some recent developments in regenerative circuits", Proceedings of the Institute of Radio Engineers 10:244.1924, "The superheterodyne. Its origin, developments and some recent improvements", Proceedings of the Institute of Radio Engineers 12:549.1936, "A method of reducing disturbances in radio signalling by a system of frequency modulation", Proceedings of the Institute of Radio Engineers 24:689.Further ReadingL.Lessing, 1956, Man of High-Fidelity: Edwin Howard Armstrong, pbk 1969 (the only definitive biography).W.R.Maclaurin and R.J.Harman, 1949, Invention \& Innovation in the Radio Industry.J.R.Whitehead, 1950, Super-regenerative Receivers.A.N.Goldsmith, 1948, Frequency Modulation (for the background to the development of frequency modulation, in the form of a large collection of papers and an extensive bibliog raphy).KFBiographical history of technology > Armstrong, Edwin Howard
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9 fundamental
adjectivegrundlegend (to für); elementar [Bedürfnisse]; (primary, original) Grund[struktur, -form, -typus]* * *1. adjective(of great importance; essential; basic: Respect for law and order is fundamental to a peaceful society.) grundlegend2. noun(a basic or essential part of any thing: Learning to read is one of the fundamentals of education.) die Grundlage- academic.ru/29886/fundamentally">fundamentally* * *fun·da·men·tal[ˌfʌndəˈmentəl, AM -t̬əl]adj grundlegend\fundamental difference wesentlicher Unterschiedto be of \fundamental importance to sth für etw akk von zentraler Bedeutung sein\fundamental issues Hintergrunddaten pl\fundamental need/principle/right Grundbedürfnis nt/-prinzip nt/-recht nt\fundamental problem grundsätzliches [o grundlegendes] Problem\fundamental question entscheidende Frage\fundamental research [or analysis] Grundlagenforschung f\fundamental tenet zentraler Lehrsatz* * *["fʌndə'mentl]1. adj1) (= essential) issue, question, concept grundlegend; reason eigentlich; point zentral; feature, part wesentlichfundamental principle/right/beliefs — Grundprinzip nt/-recht nt/-überzeugungen pl
fundamental mathematical concepts — Grundbegriffe pl der Mathematik
carbon is fundamental to life —
fundamental to impressionism was the use of bright colours — die Verwendung von leuchtenden Farben war grundlegend für den Impressionismus
2) (= basic) problem, difference, contradiction grundsätzlich; (= basic and deep) change, revolution, shift grundlegend, umwälzend; (= elementary) mistake, error, flaw grundlegend, fundamentalI don't doubt his fundamental goodness — ich zweifle nicht daran, dass er im Grunde ein guter Mensch ist
his fundamental ignorance of this subject — seine fundamentale Unkenntnis auf diesem Gebiet
fundamental structure/form — Grundstruktur f/-form f
fundamental note/frequency — Grundton m/-frequenz f
2. plfundamentals (of subject) — Grundbegriffe pl; (of a problem) Grundlagen pl
the fundamentals of physics — die Grundbegriffe pl der Physik
to get down to (the) fundamentals — bis zu den Grundlagen vordringen
* * *fundamental [ˌfʌndəˈmentl]1. als Grundlage dienend, grundlegend, wesentlich, fundamental (to für), Haupt…2. grundsätzlich, elementar3. Grund…, Fundamental…:fundamental bass → B 2 b;fundamental colo(u)r Grundfarbe f;fundamental data grundlegende Tatsachen;fundamental freedoms Grundfreiheiten pl;fundamental idea Grundbegriff m;fundamental research Grundlagenforschung f;fundamental tone → B 2 a;B s1. Grundlage f, -prinzip n, -begriff m, pl auch Grundzüge pl, Fundament n2. MUSa) Grundton mb) Fundamentalbass m3. PHYS Fundamentaleinheit f4. ELEK Grundwelle f* * *adjectivegrundlegend (to für); elementar [Bedürfnisse]; (primary, original) Grund[struktur, -form, -typus]* * *adj.grundlegend adj.grundsätzlich adj. -
10 high
I 1. [haɪ]1) (tall) [building, wall, table, forehead, cheekbones] altoI've known him since he was so high — lo conosco da quando era piccolo o da quando era alto così
2) (far from the ground) [shelf, ceiling, cloud] altohow high (up) are we? — (on top of building) quanto siamo alti? (on plane, mountain) a che altezza siamo?
3) (numerically large) [number, price, frequency] alto, elevato; [ratio, volume] alto; [ wind] fortehigh in — ricco di [fat, iron]
4) (great) [degree, risk] alto, elevato; [hope, expectation] grande5) (important) [quality, rank] alto; [ standard] elevato8) gastr. [ game] frollato2.to be high on — essere sovreccitato per [ drug]
1) (to a great height) [climb, throw] in alto; [ jump] alto, in altoto climb higher and higher — [person, animal] salire sempre più in alto; fig. [figures, unemployment] aumentare sempre di più
don't go any higher than Ј 5,000 — non andare oltre o non superare le 5.000 sterline
2) (at a high level) [set, turn on] altoto turn sth. up high — alzare qcs
3) mus. [sing, play] in una tonalità alta••it's high time that sb. did — è proprio ora che qcn. faccia
II [haɪ]to search high and low for sth. — cercare qcs. in lungo e in largo, per mari e per monti
1) (livello) massimo m., picco m.2) colloq. (euphoric feeling)to be on a high — essere su di giri o eccitatissimo
3) AE colloq. scol. scuola f. (media) superiore4)from on high — dall'alto; relig. dal Cielo
* * *1. adjective1) (at, from, or reaching up to, a great distance from ground-level, sea-level etc: a high mountain; a high dive; a dive from the high diving-board.) alto2) (having a particular height: This building is about 20 metres high; My horse is fifteen hands high.) di altezza3) (great; large; considerable: The car was travelling at high speed; He has a high opinion of her work; They charge high prices; high hopes; The child has a high fever/temperature.) alto4) (most important; very important: the high altar in a church; Important criminal trials are held at the High Court; a high official.) principale, maggiore, alto5) (noble; good: high ideals.) alto6) ((of a wind) strong: The wind is high tonight.) forte7) ((of sounds) at or towards the top of a (musical) range: a high note.) alto8) ((of voices) like a child's voice (rather than like a man's): He still speaks in a high voice.) alto9) ((of food, especially meat) beginning to go bad.) passato, andato a male10) (having great value: Aces and kings are high cards.) alto2. adverb(at, or to, a great distance from ground-level, sea-level etc: The plane was flying high in the sky; He'll rise high in his profession.) alto- highly- highness
- high-chair
- high-class
- higher education
- high fidelity
- high-handed
- high-handedly
- high-handedness
- high jump
- highlands
- high-level
- highlight 3. verb(to draw particular attention to (a person, thing etc).) dar rilievo a, mettere in evidenza- high-minded
- high-mindedness
- high-pitched
- high-powered
- high-rise
- highroad
- high school
- high-spirited
- high spirits
- high street
- high-tech 4. adjective((also hi-tech): high-tech industries.) (ad alto contenuto tecnologico)- high treason
- high water
- highway
- Highway Code
- highwayman
- high wire
- high and dry
- high and low
- high and mighty
- the high seas
- it is high time* * *I 1. [haɪ]1) (tall) [building, wall, table, forehead, cheekbones] altoI've known him since he was so high — lo conosco da quando era piccolo o da quando era alto così
2) (far from the ground) [shelf, ceiling, cloud] altohow high (up) are we? — (on top of building) quanto siamo alti? (on plane, mountain) a che altezza siamo?
3) (numerically large) [number, price, frequency] alto, elevato; [ratio, volume] alto; [ wind] fortehigh in — ricco di [fat, iron]
4) (great) [degree, risk] alto, elevato; [hope, expectation] grande5) (important) [quality, rank] alto; [ standard] elevato8) gastr. [ game] frollato2.to be high on — essere sovreccitato per [ drug]
1) (to a great height) [climb, throw] in alto; [ jump] alto, in altoto climb higher and higher — [person, animal] salire sempre più in alto; fig. [figures, unemployment] aumentare sempre di più
don't go any higher than Ј 5,000 — non andare oltre o non superare le 5.000 sterline
2) (at a high level) [set, turn on] altoto turn sth. up high — alzare qcs
3) mus. [sing, play] in una tonalità alta••it's high time that sb. did — è proprio ora che qcn. faccia
II [haɪ]to search high and low for sth. — cercare qcs. in lungo e in largo, per mari e per monti
1) (livello) massimo m., picco m.2) colloq. (euphoric feeling)to be on a high — essere su di giri o eccitatissimo
3) AE colloq. scol. scuola f. (media) superiore4)from on high — dall'alto; relig. dal Cielo
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11 operation
1) операция
2) действие
3) работа
4) процесс
5) эксплуатация
6) разработка
7) управление
8) оперирование
9) срабатывание
10) ход
11) функционирование
12) рабочий
– AND operation
– arithmetic operation
– arithmetical operation
– automatic operation
– class A operation
– class AB operation
– class B operation
– class C operation
– commercial operation
– complete an operation
– complete operation
– computer operation
– control operation
– counting operation
– CW operation
– delay-basis operation
– diplex operation
– disruption of operation
– duplex operation
– emergency operation
– end operation abnormally
– erratic operation
– fail-safe operation
– false operation
– finishing operation
– free-running operation
– go into operation
– in one operation
– in-phase operation
– inhibit operation
– initiate an operation
– irreversible operation
– isolated operation
– joint operation
– keep in operation
– large-signal operation
– manufacturing operation
– marginal operation
– mode of operation
– multi-channel operation
– NAND operation
– no-failure operation
– no-load operation
– NOR operation
– normal operation
– NOT operation
– off-line operation
– on-line operation
– on-the-air operation
– operation address
– operation code
– operation comlate
– operation condition
– operation frequency
– operation life
– operation log
– operation of relay
– operation on
– operation part
– operation period
– operation rate
– operation register
– operation research
– operation safety
– operation sheet
– operation time
– OR operation
– parallel operation
– peaking operation
– pedal operation
– polyadic operation
– principle of operation
– production operation
– put in operation
– put into operation
– putting in operation
– read operation
– real-time operation
– reversed-frequency operation
– round-the-clock operation
– shearing operation
– silence in operation
– simplex operation
– single-frequency operation
– spaced-carrier operation
– studio operation
– synchronous operation
– terminal operation
– terminate an operation
– time of operation
– time-sharing operation
– train operation
– trial operation
– trouble-free operation
– two-frequency operation
– unattended operation
– under-load operation
– write operation
"jump if not" operation — операция условного перехода
blast-furnace operation practice — технология доменного производства
divisibility closure operation — делимостная операция замыкания
operation frequency range — рабочий диапазон частот прибора СВЧ
suppressed carrier operation — передача с подавленной несущей
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12 high
high [haɪ]1. adjectivea. haut• how high is that tower? quelle est la hauteur de cette tour ?• how high is the mountain? quelle est l'altitude de la montagne ?• to have the moral high ground ( = moral superiority) avoir l'avantage moralb. (in degree, number, strength) [frequency, latitude, tension] haut before n ; [speed, number] grand before n ; [rent, price] élevé ; [sound, voice] aigu (- guë f)• official reports say casualties have been high selon les rapports officiels, il y a beaucoup de morts et de blessés• to have high expectations of sb/sth beaucoup attendre de qn/qch• to have a high opinion of sb/sth avoir une haute opinion de qn/qch• in high gear en quatrième (or cinquième) vitesse► high in... [+ fat, nitrogen] à forte teneur en2. adverba. [climb, jump, throw] haut ; [fly] à haute altitude• how high can you jump? à quelle hauteur peux-tu sauter ?b. (in degree, number, strength) the numbers go as high as 200 les nombres montent jusqu'à 200• I had to go as high as $200 for it j'ai dû aller jusqu'à 200 dollars pour l'avoir• to play high [gambler] jouer gros (jeu)3. nouna. ( = high point) the cost of living reached a new high le coût de la vie a atteint un nouveau recordc. ( = weather system) zone f de haute pression4. compounds► high-class adjective [hotel, food, service] sélect ; [neighbourhood, flat] (de) grand standing ; [person] du grand monde ; [prostitute] de luxe► high fibre diet noun ( = régime) régime m riche en fibres ; ( = food eaten) alimentation f riche en fibres• to be on one's high horse être sur ses grands chevaux ► high-impact adjective [aerobics, exercise] high-impact inv► high-level adjective [meeting, discussions] à un très haut niveau ; [computer language, programming] de haut niveau► high-octane adjective [petrol] à indice d'octane élevé ; (figurative = powerful, exciting) puissant• the high point of the show/evening le clou du spectacle/de la soirée ► high-powered adjective [car] très puissant ; [person] de haut vol• high-powered businessman homme m d'affaires de haut vol ► high-pressure adjective à haute pression• high-pressure area zone f de haute pression ► high-profile adjective [position, politician] très en vue ; [role] très influent ; [issue] très discuté• high school diploma (US) diplôme m de fin d'études secondaires ≈ baccalauréat m → HIGH SCHOOL ► high seas plural noun• high-speed train train m à grande vitesse ► high-spirited adjective [person] plein d'entrain ; [horse] fougueux• in high spirits ( = lively) plein d'entrain ; ( = happy) tout joyeux ► high spot noun [of visit, holiday] grand moment m• to play for high stakes jouer gros jeu ► high street noun (British) [of village] grand-rue f ; [of town] rue f principale► high-tech adjective de haute technologie ; [computer] sophistiqué ; [industry, medicine, technique] de pointe━━━━━━━━━━━━━━━━━Dans le système juridique anglais et gallois, la High Court est une cour de droit civil chargée des affaires plus importantes et complexes que celles traitées par les « County Courts ». En Écosse en revanche, la High Court (of Justiciary) est la plus haute cour de justice, à laquelle les affaires les plus graves, telles que meurtre et viol, sont soumises et où elles sont jugées devant un jury.━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━Aux États-Unis, les high schools réunissent les quatre années du deuxième cycle du secondaire (15 à 18 ans). Les élèves reçus à leur examen final se voient remettre leur diplôme au cours d'une importante cérémonie appelée « Graduation ».La vie des high schools a inspiré de nombreux films et téléfilms américains ; on y voit le rôle qu'y jouent les sports (en particulier le football et le basket-ball) et certaines manifestations mondaines comme le bal de fin d'année des élèves de terminale, le « Senior Prom ». → GRADE GRADUATION PROM━━━━━━━━━━━━━━━━━* * *[haɪ] 1.1)2) (colloq)to give somebody a high — [drug] défoncer (colloq) quelqu'un; [success] monter à la tête de quelqu'un
3) (colloq) US School = high school2.1) [building, wall, cliff] haut; [table, forehead, collar] haut (after n)high cheekbones — pommettes fpl saillantes
how high (up) are we? — ( on top of building) on est à combien de mètres au-dessus du sol?; (on plane, mountain) quelle est notre altitude?
2) [number, ratio, price, frequency, volume] élevé; [wind] violent; [hope, expectation] grand (before n)3) ( important) [quality, standard, rank] supérieur4) ( noble) [ideal, principle] noble5) ( acute) [pitch, sound, voice] aigu/-guë; [note] haut6) Culinary [game] faisandéto be high on — être défoncé à [drug]
3.to get high — se défoncer (colloq)
1) ( to a great height) hautto climb higher and higher — [person, animal] grimper de plus en plus haut; fig [figures, unemployment] augmenter de plus en plus
don't go any higher than £5,000 — ne dépasse pas 5000 livres sterling
from on high — gen d'en haut; Religion du Ciel
2) (at a high level, pitch) [set, turn on] fort; [sing, play] haut•• -
13 operation
1) действие2) операция3) оперирование4) процесс, ход5) работа, функционирование6) срабатывание7) управление8) эксплуатация•- hereditarily recursive operationoperation under VFR — авиац. визуальное самолётовождение
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14 main
1. nounmains [system] — öffentliches Versorgungsnetz; (of electricity) Stromnetz, das
turn the gas/water off at the main[s] — den Haupthahn [für das Gas/Wasser] abstellen
turn the electricity off at the mains — [den Strom] am Hauptschalter abschalten
2)2. attributive adjectivein the main — im allgemeinen; im großen und ganzen
the main doubt/principle — der entscheidende Zweifel/oberste Grundsatz
the main thing is that... — die Hauptsache od. das Wichtigste ist, dass...
* * *[mein] 1. adjective 2. noun((also mains) the chief pipe or cable in a branching system of pipes or cables: The water's been turned off at the main(s); ( also adjective) the mains electricity supply.) die Hauptleitung; Haupt-...- academic.ru/44680/mainly">mainly- mainland
- mainspring
- mainstream* * *main1[meɪn]I. nsewage \main Kanalisation fswitch off the electricity at the \mains before starting work vor Arbeitsbeginn die Stromversorgung am Hauptschalter ausschaltento be on the \mains an das Stromnetz angeschlossen sein▪ the \main das offene Meer, die hohe See4.▶ in the \main im Allgemeinen, im Prinzip▪ \mains Haupt-they bought a house with no \mains supply sie haben ein Haus gekauft, das nicht ans Stromnetz angeschlossen ist\mains electricity Hauptstromschalter mthey have been lacking \mains electricity for three weeks now sie sind seit drei Wochen ohne StromIII. adj attr, inv Haupt-\main cable Hauptkabel nt\main character Hauptperson f, Hauptfigur f\main concern wichtigstes Anliegen\main entrance [or door] Haupteingang mby \main force mit roher Gewalt\main idea Grundidee f\main reason Hauptgrund m\main thing Hauptsache fmain2[meɪn]* * *[meɪn]1. adj attrHaupt-the main idea in this book —
what is the main thing in life? — was ist die Hauptsache im Leben?
the main thing is to... — die Hauptsache ist, dass...
the main thing is you're still alive — Hauptsache, du lebst noch
2. n1) (= pipe) Hauptleitung fthe mains (of town) — das öffentliche Versorgungsnetz; (for electricity) das Stromnetz; (of house) der Haupthahn; (for electricity) der Hauptschalter
the water/gas/electricity was switched off at the mains — der Haupthahn/Hauptschalter für Wasser/Gas/Elektrizität wurde abgeschaltet
2) (poet)the main — das offene Meer, die hohe See
3)4)See:→ might* * *main1 [meın]1. Haupt…, größt(er, e, es), wichtigst(er, e, es), vorwiegend, hauptsächlich:main concern Hauptanliegen n;main entrance Haupteingang m;main exit Hauptausgang m;by main force mit äußerster Kraft, mit (roher) Gewalt;main girder Längsträger m;main meal Hauptmahlzeit f;the main office das Hauptbüro, die Zentrale;main (place of) residence Hauptwohnsitz m;main road Hauptverkehrsstraße f;the main reason der Hauptgrund;main station Hauptbahnhof m;the main thing die Hauptsache;2. poet (weit) offen:the main sea → B 63. LINGa) Haupt…b) des Hauptsatzes4. obsa) gewaltigb) wichtigB s1. a) Haupt(gas-, -wasser) leitung f:gas (water) main;turn the gas off at the mains den Haupthahn für das Gas abstellenb) Hauptstromleitung fc) meist pl Strom(versorgungs)netz n, Netz(leitung) n(f):mains cable Netzkabel n;mains connection Netzanschluss m;mains failure Stromausfall m;main frequency Betriebsfrequenz f;mains-operated Netz…, mit Netzanschluss;mains voltage Netzspannung f2. Hauptleitung f:a) Hauptrohr nb) Hauptkabel n3. US Haupt(eisenbahn)linie f4. obs Kraft f, Gewalt f: → might1 25. Hauptsache f, Kern(punkt) m, (das) Wichtigste:a) im Großen und Ganzen,b) größtenteils, zum größten TeilC v/t sl sich Heroin etc spritzenmain2 [meın] s1. Wurf m (beim Würfeln)2. obs Boxkampf m3. Hahnenkampf m* * *1. noun1) (channel, pipe) Hauptleitung, diemains [system] — öffentliches Versorgungsnetz; (of electricity) Stromnetz, das
turn the gas/water off at the main[s] — den Haupthahn [für das Gas/Wasser] abstellen
turn the electricity off at the mains — [den Strom] am Hauptschalter abschalten
2)2. attributive adjectivein the main — im allgemeinen; im großen und ganzen
the main doubt/principle — der entscheidende Zweifel/oberste Grundsatz
the main thing is that... — die Hauptsache od. das Wichtigste ist, dass...
* * *adj.Haupt- präfix.größt adj.haupt adj.haupt- adj.hauptsächlich adj.primär adj.vorwiegend adj.wichtigst adj. n.Leitung -en f. -
15 Cockerell, Christopher Sydney
[br]b. 4 June 1910 Cambridge, England[br]British designer and engineer who invented the hovercraft.[br]He was educated at Gresham's School in Holt and at Peterhouse College, Cambridge, where he graduated in engineering in 1931; he was made an Honorary Fellow in 1974. Cockerell entered the engineering firm of W.H.Allen \& Sons of Bedford as a pupil in 1931, and two years later he returned to Cambridge to engage in radio research for a further two years. In 1935 he joined Marconi Wireless Telegraph Company, working on very high frequency (VHF) transmitters and direction finders. During the Second World War he worked on airborne navigation and communication equipment, and later he worked on radar. During this period he filed thirty six patents in the fields of radio and navigational systems.In 1950 Cockerell left Marconi to set up his own boat-hire business on the Norfolk Broads. He began to consider how to increase the speed of boats by means of air lubrication. Since the 1870s engineers had at times sought to reduce the drag on a boat by means of a thin layer of air between hull and water. After his first experiments, Cockerell concluded that a significant reduction in drag could only be achieved with a thick cushion of air. After experimenting with several ways of applying the air-cushion principle, the first true hovercraft "took off" in 1955. It was a model in balsa wood, 2 ft 6 in. (762 mm) long and weighing 4½ oz. (27.6 g); it was powered by a model-aircraft petrol engine and could travel over land or water at 13 mph (20.8 km/h). Cockerell filed his first hovercraft patent on 12 December 1955. The following year he founded Hovercraft Ltd and began the search for a manufacturer. The government was impressed with the invention's military possibilities and placed it on the secret list. The secret leaked out, however, and the project was declassified. In 1958 the National Research and Development Corporation decided to give its backing, and the following year Saunders Roe Ltd with experience of making flying boats, produced the epoch-making SR N1, a hovercraft with an air cushion produced by air jets directed downwards and inwards arranged round the periphery of the craft. It made a successful crossing of the English Channel, with the inventor on board.Meanwhile Cockerell had modified the hovercraft so that the air cushion was enclosed within flexible skirts. In this form it was taken up by manufacturers throughout the world and found wide application as a passenger-carrying vehicle, for military transport and in scientific exploration and survey work. The hover principle found other uses, such as for air-beds to relieve severely burned patients and for hover mowers.The development of the hovercraft has occupied Cockerell since then and he has been actively involved in the several companies set up to exploit the invention, including Hovercraft Development Ltd and British Hovercraft Corporation. In the 1970s and 1980s he took up the idea of the generation of electricity by wavepower; he was Founder of Wavepower Ltd, of which he was Chairman from 1974 to 1982.[br]Principal Honours find DistinctionsKnighted 1969. CBE 1955. FRS 1967.LRDBiographical history of technology > Cockerell, Christopher Sydney
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16 Fessenden, Reginald Aubrey
[br]b. 6 October 1866 East Bolton, Quebec, Canadad. 22 July 1932 Bermuda[br]Canadian radio pioneer who made the first known broadcast of speech and music.[br]After initial education at Trinity College School, Port Hope, Ontario, Fessenden studied at Bishops University, Lennoxville, Quebec. When he graduated in 1885, he became Principal of the Whitney Institute in Bermuda, but he left the following year to go to New York in pursuit of his scientific interests. There he met Edison and eventually became Chief Chemist at the latter's Laboratory in Orange, New Jersey. In 1890 he moved to the Westinghouse Electric and Manufacturing Company, and two years later he returned to an academic career as Professor of Electrical Engineering, initially at Purdue University, Lafayette, Indiana, and then at the Western University of Pennsylvania, where he worked on wireless communication. From 1900 to 1902 he carried out experiments in wireless telegraphy at the US Weather Bureau, filing several patents relating to wire and liquid thermal detectors, or barretters. Following this he set up the National Electric Signalling Company; under his direction, Alexanderson and other engineers at the General Electric Company developed a high-frequency alternator that enabled him to build the first radiotelephony transmitter at Brant Rock, Massachusetts. This made its initial broadcast of speech and music on 24 December 1906, received by ship's wireless operators several hundred miles away. Soon after this the transmitter was successfully used for two-way wireless telegraphy communication with Scotland. Following this landmark event, Fessenden produced numerous inventions, including a radio compass, an acoustic depth-finder and several submarine signalling devices, a turboelectric drive for battleships and, notably, in 1912 the heterodyne principle used in radio receivers to convert signals to a lower (intermediate) frequency.[br]Principal Honours and DistinctionsInstitute of Electrical and Electronics Engineers Medal of Honour 1921.BibliographyUS patents relating to barretters include nos. 706,740, 706,742 and 706,744 (wire, 1902) and 731,029 (liquid, 1903). His invention of the heterodyne was filed as US patent no. 1,050,441 (1913).Further ReadingHelen M.Fessenden, 1940, Fessenden. Builder of Tomorrow. E.Hawkes, 1927, Pioneers of Wireless, London: Methuen. O.E.Dunlop, 1944, Radio's 100 Men of Science.KFBiographical history of technology > Fessenden, Reginald Aubrey
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17 Tesla, Nikola
SUBJECT AREA: Electricity[br]b. 9 July 1856 Smiljan, Croatiad. 7 January 1943 New York, USA[br]Serbian (naturalized American) engineer and inventor of polyphase electrical power systems.[br]While at the technical institute in Graz, Austria, Tesla's attention was drawn to the desirability of constructing a motor without a commutator. He considered the sparking between the commutator and brushes of the Gramme machine when run as a motor a serious defect. In 1881 he went to Budapest to work on the telegraph system and while there conceived the principle of the rotating magnetic field, upon which all polyphase induction motors are based. In 1882 Tesla moved to Paris and joined the Continental Edison Company. After building a prototype of his motor he emigrated to the United States in 1884, becoming an American citizen in 1889. He left Edison and founded an independent concern, the Tesla Electric Company, to develop his inventions.The importance of Tesla's first patents, granted in 1888 for alternating-current machines, cannot be over-emphasized. They covered a complete polyphase system including an alternator and induction motor. Other patents included the polyphase transformer, synchronous motor and the star connection of three-phase machines. These were to become the basis of the whole of the modern electric power industry. The Westinghouse company purchased the patents and marketed Tesla motors, obtaining in 1893 the contract for the Niagara Falls two-phase alternators driven by 5,000 hp (3,700 kW) water turbines.After a short period with Westinghouse, Tesla resigned to continue his research into high-frequency and high-voltage phenomena using the Tesla coil, an air-cored transformer. He lectured in America and Europe on his high-frequency devices, enjoying a considerable international reputation. The name "tesla" has been given to the SI unit of magnetic-flux density. The induction motor became one of the greatest advances in the industrial application of electricity. A claim for priority of invention of the induction motor was made by protagonists of Galileo Ferraris (1847–1897), whose discovery of rotating magnetic fields produced by alternating currents was made independently of Tesla's. Ferraris demonstrated the phenomenon but neglected its exploitation to produce a practical motor. Tesla himself failed to reap more than a small return on his work and later became more interested in scientific achievement than commercial success, with his patents being infringed on a wide scale.[br]Principal Honours and DistinctionsAmerican Institute of Electrical Engineers Edison Medal 1917. Tesla received doctorates from fourteen universities.Bibliography1 May 1888, American patent no. 381,968 (initial patent for the three-phase induction motor).1956, Nikola Tesla, 1856–1943, Lectures, Patents, Articles, ed. L.I.Anderson, Belgrade (selected works, in English).1977, My Inventions, repub. Zagreb (autobiography).Further ReadingM.Cheney, 1981, Tesla: Man Out of Time, New Jersey (a full biography). C.Mackechnie Jarvis, 1969, in IEE Electronics and Power 15:436–40 (a brief treatment).T.C.Martin, 1894, The Inventions, Researches and Writings of Nikola Tesla, New York (covers his early work on polyphase systems).GW -
18 buying
сущ.торг. покупка, закупкаSyn:See:bulk buying, cash buying, cooperative buying, credit buying, forward buying, habit buying, impulse buying, instalment buying media buying, off-premise buying, pressure buying, print buying, reciprocal buying, retail buying, space buying, time buying, buying agent, buying allowance, buying attitude, buying behaviour, buying centre, buying club, buying commission, buying committee, buying cooperative, buying decision, buying department, buying frequency, buying guide, buying habit, buying headquarters, buying incentive, buying influence, buying intention, buying list, buying loader, buying office, buying organization, buying pattern, buying potential, buying price, buying principle, buying response, buying service, buying spree, buying stage, customer buying process, gift buying season, buying-in, buying-up -
19 circuit
1) сеть
2) кругооборот
3) циркуляционный
4) циркуляционный контур
5) <tech.> цепь
6) схема
7) поток
8) неупорядоченный цикл
9) оборудование
10) обход
11) схемный
12) выключатель
– absorption circuit
– alarm circuit
– alternating-current circuit
– analog circuit
– analogous circuit
– AND-to OR circuit
– AND-to-AND circuit
– antenna circuit
– anti-coincidence circuit
– anticoincidence circuit
– antihunt circuit
– arm circuit
– arm of circuit
– astable circuit
– balanced circuit
– balancing of a circuit
– band-elimination circuit
– be in traffic circuit
– bias circuit
– bipartite circuit
– blanking circuit
– blocking circuit
– boosted circuit
– bootstrap circuit
– braking circuit
– breadboard circuit
– break in circuit
– bridge circuit
– built-up circuit
– carry circuit
– cascode circuit
– cathode-coupled circuit
– checking circuit
– circuit algebra
– circuit analysis
– circuit breaker
– circuit capacitance
– circuit card
– circuit closer
– circuit closure
– circuit continuity
– circuit design
– circuit diagram
– circuit element
– circuit grade
– circuit matrix
– circuit noise
– circuit order
– circuit switching
– circuit technology
– circuit tester
– circuit theory
– circuit time
– circuit wiring
– clipper-limiter circuit
– closed circuit
– coding circuit
– coincidence circuit
– communication circuit
– comparison circuit
– compensating circuit
– complete circuit
– composite circuit
– control circuit
– conveyer circuit
– cord circuit
– corrector circuit
– counting circuit
– coupled circuit
– cryotron circuit
– current circuit
– cut in circuit
– de-emphasis circuit
– de-energize circuit
– dead circuit
– decoding circuit
– deemphasis circuit
– deenergizing circuit
– delay circuit
– derivation circuit
– derived circuit
– differentiating circuit
– digital circuit
– direct-current circuit
– disabling circuit
– discharge circuit
– distributed-parameter circuit
– divide-by-two circuit
– dividing circuit
– doubling circuit
– draw up circuit
– drive circuit
– dual circuit
– earth-return circuit
– electronic circuit
– enabling circuit
– energizing circuit
– engineer's circuit
– equalize circuit
– equivalent circuit
– excitation circuit
– exciting circuit
– exclusive OR circuit
– extend circuit
– feedback circuit
– ferroresonance circuit
– filament circuit
– finite circuit
– forward circuit
– gang circuit
– gate circuit
– ground circuit
– grounded-cathode circuit
– grounded-emitter circuit
– grounded-grid circuit
– guard circuit
– halving circuit
– high-frequency circuit
– high-speed circuit
– high-tension circuit
– hold a circuit
– hold circuit
– hybrid circuit
– idler circuit
– ignition circuit
– impulse circuit
– inclusive OR circuit
– incomplete circuit
– information circuit
– inhibit circuit
– injection circuit
– inland circuit
– inoperative circuit
– input circuit
– insulate circuit
– integrated circuit
– integrating circuit
– interruption of circuit
– interstage circuit
– inverter circuit
– isolating circuit
– isolation circuit
– keying circuit
– ladder circuit
– level circuit
– line circuit
– linear circuit
– linearity circuit
– load circuit
– local circuit
– logic circuit
– made circuit
– magnetic circuit
– main circuit
– marking circuit
– matrix circuit
– measuring circuit
– memory circuit
– metering circuit
– micrologic circuit
– microminiature circuit
– microprinted circuit
– microvave circuit
– mixing circuit
– mnemonic circuit
– modular circuit
– modulator circuit
– monitoring circuit
– monolithic circuit
– multichip circuit
– multifunction circuit
– multiple circuit
– multiplex circuit
– multiply-by-two circuit
– multiplying circuit
– multistable circuit
– narrow-gate circuit
– network circuit
– non-coincidence circuit
– nonlinear circuit
– NOR logic circuit
– NOT AND circuit
– not circuit
– NOT OR circuit
– NOT-AND circuit
– obtain circuit
– off-centering circuit
– open circuit
– open-wire circuit
– opposition circuit
– OR circuit
– OR-to-AND circuit
– OR-to-OR circuit
– oscillatory circuit
– output circuit
– parallel circuit
– parasitic circuit
– passive circuit
– period-computing circuit
– phantom circuit
– physical circuit
– planar circuit
– plank-magnetic circuit
– plated circuit
– polyphase circuit
– potted circuit
– power circuit
– primary circuit
– principle circuit
– printed circuit
– protect circuit
– protection circuit
– pulmonary circuit
– pulse-actuated circuit
– pulse-generating circuit
– pump circuit
– push-pull circuit
– radiotelephone circuit
– read circuit
– reciprocal circuit
– regenerative circuit
– reheat circuit
– rejecter circuit
– relaxation circuit
– reset circuit
– resistive circuit
– resonance circuit
– resonant circuit
– response of circuit
– return circuit
– ring-bus circuit
– ring-down circuit
– ringdown circuit
– safety circuit
– scale-of-five circuit
– scale-of-ten circuit
– scale-of-two circuit
– scaling circuit
– schematic circuit
– secondary circuit
– see-saw circuit
– seize a circuit
– self-exciting circuit
– semibutterfly circuit
– separation circuit
– sequence circuit
– sequential circuit
– series circuit
– shift circuit
– short circuit
– side circuit
– simplexed circuit
– single-channel circuit
– single-core circuit
– single-ended circuit
– single-wire circuit
– sling circuit
– software circuit
– solid-state circuit
– squaring circuit
– squelch circuit
– stabilizing circuit
– staggered circuit
– starting circuit
– steam-generating circuit
– stick circuit
– storage circuit
– subtraction circuit
– sweep circuit
– switch circuit
– switching circuit
– symmetrical circuit
– sync circuit
– synchronizing circuit
– systemic circuit
– talking circuit
– tank circuit
– tapped circuit
– telephone circuit
– testing circuit
– thick-film circuit
– thin-film circuit
– three-phase circuit
– through circuit
– timer circuit
– totem-pole-type circuit
– track circuit
– transfer circuit
– transistor circuit
– trap circuit
– voltage-doubling circuit
– water-slurry circuit
– water-steam circuit
– welding circuit
– write circuit
alignment of tuned circuit — < radio> подстройка контура
analog integrated circuit — аналоговая микросхема, аналоговая интегральная микросхема
aperiodic oscillatory circuit — колебательный апериодический
automatic circuit breaker — автомат защиты сети, выключатель автоматический
bridge-type balancing circuit — <electr.> схема мостовая компенсационная
deposited integrated circuit — осажденная интегральная схема
digital integrated circuit — цифровая микросхема, цифровая ИМС
directly-coupled transistor circuit — схема с непосредственной связью на полупроводниковых триодах
double flip-flop circuit — <comput.> схема двухперекидная
double-rail track circuit — < railways> цепь рельсовая двухниточная
ferroresonant computing circuit — феррорезонансная вычислительная схема
film integrated circuit — пленочная микросхема, пленочная интегральная микросхема
gas-blast circuit breaker — выключатель с газовым дутьем, выключатель автокомпрессионный элегазовый
half-wave track circuit — импульсная рельсовая цепь < railways>
hybrid integrated circuit — гибридная микросхема, гибридная интегральная микросхема
integrated circuit amplifier — усилитель на интегральных схемах
large-scale integration circuit — большая интегральная микросхема
meter-reading access circuit — схема вывода показаний измерительного прибора
microprocessor integrated circuit — микропроцессорная интегральная микросхема
microwave integrated circuit — интегральная схема СВЧ диапазона, сверхвысокочастотная ИМС
monolithic integrated circuit — полупроводниковая микросхема
multitank oil circuit breaker — камерный масляный выключатель
semiconducnor integrated circuit — полупроводниковая интегральная микросхема
series track circuit — < railways> цепь рельсовая конденсаторная
short circuit current — <electr.> ток короткого замыкания
single-path magnetic circuit — неразветвленный магнитопровод
single-rail track circuit — однониточная рельсовая цепь, < railways> цепь рельсовая однониточная
single-tank oil circuit breaker — баковый масляный выключатель
turn-to-turn short circuit — междувитковое короткое замыкание
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20 fundamental
1) основной
2) принципиальный
3) фундаментальный
4) капитальный
5) основоположный
– fundamental astrometry
– fundamental circle
– fundamental frequency
– fundamental function
– fundamental harmonic
– fundamental law
– fundamental oscillations
– fundamental particle
– fundamental period
– fundamental principle
– fundamental relation
– fundamental sequence
– fundamental tone
– fundamental unit
– fundamental wave
fundamental probability set — множество элементарных событий
- 1
- 2
См. также в других словарях:
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