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1 lower frequencies
Телекоммуникации: нижние частоты (спектра) -
2 lower frequencies
English-Russian dictionary of telecommunications and their abbreviations > lower frequencies
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3 frequency
1) частота2) радиостанция•- A2A frequency
- absolute cutoff frequency
- acoustical frequency
- aircraft emergency frequency
- air-ground frequency
- alternative frequencies
- angular frequency
- assigned frequency
- audio-signals frequency
- authorized frequency
- auxiliary frequency
- beat frequency
- break frequency
- calling frequency
- carrier frequency
- center frequency
- central frequency
- channel frequency
- characteristic frequency
- chrominance frequency
- chrominance sampling frequency
- chrominance-carrier frequency
- circular transducing frequency
- clock frequency
- closed-loop frequency
- color-difference signal sampling frequency
- corner frequency
- critical flickering frequency
- crossover frequency
- cutoff frequency
- cyclotron frequency
- dedicated frequency
- difference frequency
- distress frequency
- divisible frequency
- dropout frequency
- extremely-high frequency
- extremely-low frequency
- field frequency
- filter frequency
- fixed frequency
- folding frequency
- frame frequency
- free-running frequency
- frequency of operation
- frequency of optimum traffic
- frequency of optimum transmission
- fundamental frequency
- fusion frequency
- gain-crossover frequency
- ground-to-air frequency
- group frequency
- guarded frequency
- H2A frequency
- harmonic frequency
- heterodyne frequency
- high frequency
- horizontal-line frequency
- horizontal-scanning frequency
- image frequency
- imaginary frequency
- infralow frequency
- instantaneous frequency
- intercarrier frequency
- intermediate frequency
- intrinsic frequency
- J2A frequency
- keying frequency
- knee frequency
- limiting frequency
- line control frequency
- line frequency
- lock-in frequency
- low frequency
- lower frequencies
- lower half-power frequency
- lowest-usable high frequency
- lowest-useful high frequency
- master frequency
- maximum modulating frequency
- maximum modulation frequency
- maximum operating frequency
- maximum usable frequency
- maximum-keying frequency
- medium frequency
- microwave frequency
- multiple frequency
- natural frequency
- nominal pass-band center frequency
- NON frequency
- normalized frequency
- note frequency
- Nyquist frequency
- operating frequency
- optical frequency
- optimum traffic frequency
- optimum transmission frequency
- optimum working frequency
- peak amplification frequency
- picture frequency
- power frequency
- precise frequency
- primary frequency
- protected frequency
- pulse-repetition frequency
- pump frequency
- pumping frequency
- quenching frequency
- R2A frequency
- radial frequency
- rated-network frequency
- reduced frequency
- reference frequency
- repetition frequency
- resonance frequency
- resonant frequency
- ringing frequency
- sampling frequency
- scanning frequency
- scanning line frequency
- second-channel frequency
- self-resonant frequency
- side frequency
- signal frequency
- slip frequency
- sound-carrier frequency
- spatial frequency
- speech frequency
- standard frequency
- subtelephone frequency
- super-high frequency
- supersonic frequency
- supertelephone frequency
- sweep frequency
- swept frequency
- tone frequency
- transition frequency
- translation frequency
- ultra-high frequency
- ultra-low frequency
- upper frequencies
- vertical frequency
- very-high frequency
- very-low frequency
- virtual-carrier frequency
- voice frequency
- wow frequencyEnglish-Russian dictionary of telecommunications and their abbreviations > frequency
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4 LF
1) Компьютерная техника: Large Format, Linefeed, перевод строки, переход на следующую строку2) Авиация: низкая частота3) Американизм: Late Filing, Lead Free4) Спорт: Left Forward5) Военный термин: Lancashire Fusiliers, Land Forces, Left Face, Legendary Force, Light Fighter, Low Fusing, labor force, landing force, launch facility, life float, limiting fragmentation, line flow, live firing, live flying, local forces, luminous flash, истребитель с двигателем для полётов на малых высотах, низкая ( от 30 до 300 кГц) частота6) Техника: laser field, laser fluctuation, laser frequency, laser fuze, least favorable, line feed character7) Химия: Low Fluorocarbon, Low Formaldehyde8) Математика: Lexical Function, Linear Fractional, Logical Form, линейная форма (linear form)9) Юридический термин: Likely False10) Страхование: Fresh water timber load line (in Summer)11) Автомобильный термин: left front12) Грубое выражение: Lady Full13) Металлургия: ladle furnace, печь-ковш (ladle furnace)14) Телевидение: lof frequency15) Телекоммуникации: Largest Frame, НЧ16) Сокращение: Lead Facilitator, Low Frequency (30 - 300 kHz), lawn faucet, linoleum floor, Low Frequency (30-300KHz), load factor (tabular)17) Физика: Latency Factor, Low Friction18) Физиология: Left foot, Linear Fracture, Loss Of Function19) Электроника: Laminar flow, Lever Filler, Logic Function, Low Frequency20) Вычислительная техника: Line Feed (ASCII), Login Facility (DCE), (line feed) символ перевода строки (в коде ASCII представлен числом 10)21) Космонавтика: long-term flight22) Картография: landing facilities23) Транспорт: Lexus Future, Little Flyer24) Фирменный знак: Law Firm, The Leather Factory25) Холодильная техника: liquid fluorocarbon26) Деловая лексика: Leader's Focus, Lower Feasibility27) Глоссарий компании Сахалин Энерджи: low frequency (radio)28) Менеджмент: late finish29) Образование: Learn Filter30) Полимеры: laminated film, liquid fluorine, load factor31) Программирование: Level Floating, Link Full, Long Float, Long Floating, Low Fill32) Автоматика: linear file33) Авиационная медицина: lateroflexion34) Макаров: low frequencies35) Расширение файла: Line Feed36) Электротехника: load following37) Имена и фамилии: Lloyd Fields, Lowell Franklin38) ООН: The Liberation Front39) Общественная организация: Local Federation40) Чат: Looking For, Loose Floozy, Love From41) Единицы измерений: Lineal Feet, Linear Feet -
5 Lf
1) Компьютерная техника: Large Format, Linefeed, перевод строки, переход на следующую строку2) Авиация: низкая частота3) Американизм: Late Filing, Lead Free4) Спорт: Left Forward5) Военный термин: Lancashire Fusiliers, Land Forces, Left Face, Legendary Force, Light Fighter, Low Fusing, labor force, landing force, launch facility, life float, limiting fragmentation, line flow, live firing, live flying, local forces, luminous flash, истребитель с двигателем для полётов на малых высотах, низкая ( от 30 до 300 кГц) частота6) Техника: laser field, laser fluctuation, laser frequency, laser fuze, least favorable, line feed character7) Химия: Low Fluorocarbon, Low Formaldehyde8) Математика: Lexical Function, Linear Fractional, Logical Form, линейная форма (linear form)9) Юридический термин: Likely False10) Страхование: Fresh water timber load line (in Summer)11) Автомобильный термин: left front12) Грубое выражение: Lady Full13) Металлургия: ladle furnace, печь-ковш (ladle furnace)14) Телевидение: lof frequency15) Телекоммуникации: Largest Frame, НЧ16) Сокращение: Lead Facilitator, Low Frequency (30 - 300 kHz), lawn faucet, linoleum floor, Low Frequency (30-300KHz), load factor (tabular)17) Физика: Latency Factor, Low Friction18) Физиология: Left foot, Linear Fracture, Loss Of Function19) Электроника: Laminar flow, Lever Filler, Logic Function, Low Frequency20) Вычислительная техника: Line Feed (ASCII), Login Facility (DCE), (line feed) символ перевода строки (в коде ASCII представлен числом 10)21) Космонавтика: long-term flight22) Картография: landing facilities23) Транспорт: Lexus Future, Little Flyer24) Фирменный знак: Law Firm, The Leather Factory25) Холодильная техника: liquid fluorocarbon26) Деловая лексика: Leader's Focus, Lower Feasibility27) Глоссарий компании Сахалин Энерджи: low frequency (radio)28) Менеджмент: late finish29) Образование: Learn Filter30) Полимеры: laminated film, liquid fluorine, load factor31) Программирование: Level Floating, Link Full, Long Float, Long Floating, Low Fill32) Автоматика: linear file33) Авиационная медицина: lateroflexion34) Макаров: low frequencies35) Расширение файла: Line Feed36) Электротехника: load following37) Имена и фамилии: Lloyd Fields, Lowell Franklin38) ООН: The Liberation Front39) Общественная организация: Local Federation40) Чат: Looking For, Loose Floozy, Love From41) Единицы измерений: Lineal Feet, Linear Feet -
6 lf
1) Компьютерная техника: Large Format, Linefeed, перевод строки, переход на следующую строку2) Авиация: низкая частота3) Американизм: Late Filing, Lead Free4) Спорт: Left Forward5) Военный термин: Lancashire Fusiliers, Land Forces, Left Face, Legendary Force, Light Fighter, Low Fusing, labor force, landing force, launch facility, life float, limiting fragmentation, line flow, live firing, live flying, local forces, luminous flash, истребитель с двигателем для полётов на малых высотах, низкая ( от 30 до 300 кГц) частота6) Техника: laser field, laser fluctuation, laser frequency, laser fuze, least favorable, line feed character7) Химия: Low Fluorocarbon, Low Formaldehyde8) Математика: Lexical Function, Linear Fractional, Logical Form, линейная форма (linear form)9) Юридический термин: Likely False10) Страхование: Fresh water timber load line (in Summer)11) Автомобильный термин: left front12) Грубое выражение: Lady Full13) Металлургия: ladle furnace, печь-ковш (ladle furnace)14) Телевидение: lof frequency15) Телекоммуникации: Largest Frame, НЧ16) Сокращение: Lead Facilitator, Low Frequency (30 - 300 kHz), lawn faucet, linoleum floor, Low Frequency (30-300KHz), load factor (tabular)17) Физика: Latency Factor, Low Friction18) Физиология: Left foot, Linear Fracture, Loss Of Function19) Электроника: Laminar flow, Lever Filler, Logic Function, Low Frequency20) Вычислительная техника: Line Feed (ASCII), Login Facility (DCE), (line feed) символ перевода строки (в коде ASCII представлен числом 10)21) Космонавтика: long-term flight22) Картография: landing facilities23) Транспорт: Lexus Future, Little Flyer24) Фирменный знак: Law Firm, The Leather Factory25) Холодильная техника: liquid fluorocarbon26) Деловая лексика: Leader's Focus, Lower Feasibility27) Глоссарий компании Сахалин Энерджи: low frequency (radio)28) Менеджмент: late finish29) Образование: Learn Filter30) Полимеры: laminated film, liquid fluorine, load factor31) Программирование: Level Floating, Link Full, Long Float, Long Floating, Low Fill32) Автоматика: linear file33) Авиационная медицина: lateroflexion34) Макаров: low frequencies35) Расширение файла: Line Feed36) Электротехника: load following37) Имена и фамилии: Lloyd Fields, Lowell Franklin38) ООН: The Liberation Front39) Общественная организация: Local Federation40) Чат: Looking For, Loose Floozy, Love From41) Единицы измерений: Lineal Feet, Linear Feet -
7 sum
1) сумма; итог || суммировать, складывать; подводить итог3) резюмировать•sum over sum — мат. сумма вдоль подпространства
sum taken over — сумма, взятая по…
to sum up — резюмировать, суммировать
to sum with respect to — суммировать по...
- free sum- rank sum- regression sum of squares- risk sum- row sum- sum of squares for contrasts- unit sum -
8 low
1. n самый низкий уровень2. n обыкн. низина3. n метеор. область низкого барометрического давления; циклон4. n карт. младший козырь5. n фоска6. n спорт. самый маленький счёт7. n авт. первая, низшая скоростьon a low level — на низком уровне; в низших инстанциях
8. a низкий, невысокийlow frequency — радио, низкая частота
low cover — подрост, нижний ярус
9. a низкий, низменныйtrees growing in low, shady places — деревья, растущие в низких тенистых местах
10. a низкий, ниже обычного или желаемого уровняlow level of employment — низкий уровень занятости, большая безработица
low tide — отлив, малая вода
to get low — понижаться, падать
11. a открытый12. a тихий, негромкий13. a низкого происхождения, низкого социального положенияall sorts of people, high and low — всякие люди, люди разных классов
low area — циклон, область низкого давления
low level i/o — ввод - вывод низкого уровня
14. a невысокоразвитый, стоящий на низкой ступени цивилизацииlow tribes — племена, стоящие на низкой ступени развития
straddle over low bar — перемах ноги врозь над н.ж.
15. a биол. низшийlow quality — низкое качество; низший сорт
16. a вульгарный, грубый; низкий; невоспитанныйlow manners — плохие манеры; вульгарные манеры
low fellow — невоспитанный человек, хам
17. a низкий, подлыйlow cunning — коварство; изворотливость
18. a слабый, пониженный, небольшойlow volume — небольшой обьем; небольшой
19. a слабый, подавленный20. a подавленный, униженныйto bring low — подавлять, угнетать; унижать
21. a плохой, неблагоприятный22. a скудный, недостаточный; непитательный; истощённый, исчерпанныйoil is in low supply — нефти не хватает; нефть поступает в недостаточном количестве
23. a церк. принадлежащие к низкой церквиtoo low — слишком низко; слишком низкий
24. adv низкоto bow low — низко кланяться; отвесить низкий поклон
I hope I shall never fall as low as that — я надеюсь, что никогда не паду так низко
25. adv тихо, негромко26. adv на низких нотах27. adv дёшево, по дешёвой ценеto buy low — покупать дёшево, купить по дешёвке
28. adv скудно; бедно, в бедностиto live low — жить в бедности, скудно питаться
rear lying support hang on low bar — вис лежа сзади на н.ж.
front lying support hang on low bar — вис лежа на н.ж.
29. adv слабо30. adv поздно, недавно31. n мычание32. v мычатьСинонимический ряд:1. cheap (adj.) cheap; economical; inexpensive; low cost; low-cost; low-priced; popular; reasonable; uncostly; undear2. coarse (adj.) coarse; crass; crude; gross; incult; inelegant; raw; rough; rude; uncouth; uncultivated; uncultured; unpolished; unrefined; vulgar3. deep (adj.) bass; deep; low-pitched4. downcast (adj.) bad; blue; cast down; chapfallen; crestfallen; dejected; depressed; disconsolate; dispirited; doleful; down; downcast; downhearted; down-in-the-mouth; downthrown; droopy; dull; gloomy; heartsick; heartsore; heavy-hearted; hipped; low-spirited; melancholic; melancholy; miserable; moody; mopey; sad; saddened; soul-sick; spiritless; sunk; unhappy; woebegone5. flat (adj.) flat; level; squat; stumpy6. humble (adj.) humble; insignificant; paltry; unimportant7. ignoble (adj.) baseborn; ignoble; lowborn; meek; plain; plebeian; unennobled; unwashed8. mean (adj.) abhorrent; abject; base; contemptible; degraded; despicable; detestable; disgraceful; disgusting; dishonorable; dishonourable; disreputable; filthy; foul; loathsome; low-down; lowly; mean; menial; nasty; obnoxious; odious; reprehensible; repugnant; rotten; servile; shabby; sordid; sorry; squalid; ugly; unbecoming; undignified; vile; wretched9. poor (adj.) beggared; broke; destitute; dirt poor; fortuneless; impecunious; impoverished; indigent; necessitous; needy; penurious; poor; poverty-stricken; stone-broke; stony; strapped; unprosperous10. prone (adj.) dead; prone; prostrate; supine11. small (adj.) inferior; lesser; lower; minor; minor-league; nether; petty; secondary; small; subjacent; under12. soft (adj.) gentle; hushed; low-key; muffled; quiet; soft; subdued13. subaverage (adj.) subaverage; subnormal14. unwell (adj.) ailing; dying; exhausted; expiring; feeble; indisposed; off-color; offish; poorly; sickly; sinking; underly; unwell; weak15. bellow (verb) bellow16. cheaply (other) cheaply; inexpensivelyАнтонимический ряд:admirable; blatant; considerable; deafening; decent; elated; elevated; eminent; estimable; exalted; excited; exorbitant; happy; healthy; loud; substantial; tall -
9 Appleton, Sir Edward Victor
[br]b. 6 September 1892 Bradford, Englandd. 21 April 1965 Edinburgh, Scotland[br]English physicist awarded the Nobel Prize for Physics for his discovery of the ionospheric layer, named after him, which is an efficient reflector of short radio waves, thereby making possible long-distance radio communication.[br]After early ambitions to become a professional cricketer, Appleton went to St John's College, Cambridge, where he studied under J.J.Thompson and Ernest Rutherford. His academic career interrupted by the First World War, he served as a captain in the Royal Engineers, carrying out investigations into the propagation and fading of radio signals. After the war he joined the Cavendish Laboratory, Cambridge, as a demonstrator in 1920, and in 1924 he moved to King's College, London, as Wheatstone Professor of Physics.In the following decade he contributed to developments in valve oscillators (in particular, the "squegging" oscillator, which formed the basis of the first hard-valve time-base) and gained international recognition for research into electromagnetic-wave propagation. His most important contribution was to confirm the existence of a conducting ionospheric layer in the upper atmosphere capable of reflecting radio waves, which had been predicted almost simultaneously by Heaviside and Kennelly in 1902. This he did by persuading the BBC in 1924 to vary the frequency of their Bournemouth transmitter, and he then measured the signal received at Cambridge. By comparing the direct and reflected rays and the daily variation he was able to deduce that the Kennelly- Heaviside (the so-called E-layer) was at a height of about 60 miles (97 km) above the earth and that there was a further layer (the Appleton or F-layer) at about 150 miles (240 km), the latter being an efficient reflector of the shorter radio waves that penetrated the lower layers. During the period 1927–32 and aided by Hartree, he established a magneto-ionic theory to explain the existence of the ionosphere. He was instrumental in obtaining agreement for international co-operation for ionospheric and other measurements in the form of the Second Polar Year (1932–3) and, much later, the International Geophysical Year (1957–8). For all this work, which made it possible to forecast the optimum frequencies for long-distance short-wave communication as a function of the location of transmitter and receiver and of the time of day and year, in 1947 he was awarded the Nobel Prize for Physics.He returned to Cambridge as Jacksonian Professor of Natural Philosophy in 1939, and with M.F. Barnett he investigated the possible use of radio waves for radio-location of aircraft. In 1939 he became Secretary of the Government Department of Scientific and Industrial Research, a post he held for ten years. During the Second World War he contributed to the development of both radar and the atomic bomb, and subsequently served on government committees concerned with the use of atomic energy (which led to the establishment of Harwell) and with scientific staff.[br]Principal Honours and DistinctionsKnighted (KCB 1941, GBE 1946). Nobel Prize for Physics 1947. FRS 1927. Vice- President, American Institute of Electrical Engineers 1932. Royal Society Hughes Medal 1933. Institute of Electrical Engineers Faraday Medal 1946. Vice-Chancellor, Edinburgh University 1947. Institution of Civil Engineers Ewing Medal 1949. Royal Medallist 1950. Institute of Electrical and Electronics Engineers Medal of Honour 1962. President, British Association 1953. President, Radio Industry Council 1955–7. Légion d'honneur. LLD University of St Andrews 1947.Bibliography1925, joint paper with Barnett, Nature 115:333 (reports Appleton's studies of the ionosphere).1928, "Some notes of wireless methods of investigating the electrical structure of the upper atmosphere", Proceedings of the Physical Society 41(Part III):43. 1932, Thermionic Vacuum Tubes and Their Applications (his work on valves).1947, "The investigation and forecasting of ionospheric conditions", Journal of theInstitution of Electrical Engineers 94, Part IIIA: 186 (a review of British work on the exploration of the ionosphere).with J.F.Herd \& R.A.Watson-Watt, British patent no. 235,254 (squegging oscillator).Further ReadingWho Was Who, 1961–70 1972, VI, London: A. \& C.Black (for fuller details of honours). R.Clark, 1971, Sir Edward Appleton, Pergamon (biography).J.Jewkes, D.Sawers \& R.Stillerman, 1958, The Sources of Invention.KFBiographical history of technology > Appleton, Sir Edward Victor
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10 radio
"Electromagnetic waves longer than about 0.3 mm (frequencies lower than about 1 THz). Radio is used to transmit a wide variety of signals, using various frequency ranges and types of modulation, such as AM and FM broadcasts, microwave relays, and television broadcasts."
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