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1 transmission
transmission [tʀɑ̃smisjɔ̃]feminine nouna. passing on• grâce à la transmission de ce savoir de génération en génération because this knowledge has been passed down from generation to generationb. [de signal, énergie, impulsion] transmission ; (Radio, TV) [d'émission, discours] broadcasting• les transmissions (armée) ≈ the Signals (corps)• la transmission [de véhicule] the transmission* * *tʀɑ̃smisjɔ̃
1.
1) ( communication) transmission, passing on2) Physique, Télécommunications transmission3) Radio, Télévision broadcasting, transmission4) (de tradition, secret, culture) handing down, passing down; Droit (de fortune, bien, titre, d'héritage) transfer5) Automobile transmission6) Médecine transmission
2.
transmissions nom féminin pluriel Armée signalsPhrasal Verbs:* * *tʀɑ̃smisjɔ̃1. nf1) (= action) transmission, passing ontransmission de données INFORMATIQUE — data transmission
2) AUTOMOBILES transmission2. transmissions nfplMILITAIRE signals corps sg* * *A nf1 ( communication) transmission, passing on (de of; à to); la transmission des connaissances the communication ou transmission of knowledge;2 Télécom, Phys, Tech transmission (de of; à to); la transmission d'images par satellite the transmission of images by satellite;3 Radio, TV broadcasting, transmission (de of); la transmission d'une émission en direct de Moscou the broadcasting ou transmission of a programmeGB live from Moscow;4 (de tradition, secret, culture) handing down, passing down (de of; à to); (de fortune, bien, titre, d'héritage) Jur transfer (de of; à to);5 Aut, Mécan transmission; une voiture à transmission automatique a car with automatic transmission;6 Méd transmission (de of; à to); la transmission d'une maladie par le sang the transmission of a disease through the blood.B transmissions nfpl Mil signals; il travaille aux transmissions he works in the signals department; il travaille dans les transmissions he works in signals.transmission de données Ordinat data transfer; transmission de pensées thought transference; la transmission des pouvoirs Jur the handover of power.[trɑ̃smisjɔ̃] nom féminin1. AUTOMOBILE & MÉCANIQUE [pièces]2. PHYSIQUE [de chaleur, de son] transmission[d'un secret] passing ontransmission de pensée telepathy, thought transference6. [legs - d'un bijou, d'une histoire] handing down, passing on ; [ - d'un état d'esprit] passing on————————transmissions nom féminin plurielles transmissions ≃ the Signals Corps -
2 Передача изображений
Русско-английский словарь по прикладной математике и механике > Передача изображений
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3 передача изображений
1) Mathematics: transmission of images2) Electronics: picture transmission3) Information technology: graphics messaging, image transmissionУниверсальный русско-английский словарь > передача изображений
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4 Bildleitung
Deutsch-Englisch Wörterbuch der Elektrotechnik und Elektronik > Bildleitung
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5 Стать
The word ``television'' has come to mean (стало означать) the instantaneous transmission of imagesРусско-английский словарь по прикладной математике и механике > Стать
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6 émission
émission [emisjɔ̃]feminine noun• émission télévisée or de télévision television programmeb. [de son, lumière, signaux] emission ; ( = transmission de sons, d'images) broadcastingc. [de monnaie, actions, emprunt] issue ; [de chèque] drawing* * *emisjɔ̃1) Radio, Télévision programme [BrE] ( sur about, on)2) (de document, monnaie, timbre) issue3) (d'ondes, de signaux) emission* * *emisjɔ̃ nf1) (= action) [monnaie, actions, emprunt] issue2) RADIO, TV programme* * *émission nf1 Radio, TV programmeGB; émission de radio/de télévision radio/TV programmeGB; émission éducative/littéraire educational/book programmeGB; émission grand public programmeGB with universal appeal; émission sur la France programmeGB about France;4 Ling émission de voix phonation.[emisjɔ̃] nom féminin[programme] programmeémission en direct/en différé live/recorded broadcast4. [de sons articulés] -
7 Ives, Herbert Eugene
[br]b. 1882 USAd. 1953[br]American physicist find television pioneer.[br]Ives gained his PhD in physics from Johns Hopkins University, Baltimore, Maryland, and subsequently served in the US Signal Corps, eventually gaining experience in aerial photography. He then joined the Western Electric Engineering Department (later Bell Telephone Laboratories), c.1920 becoming leader of a group concerned with television-image transmission over telephone lines. In 1927, using a Nipkow disc, he demonstrated 50-line, 18 frames/sec pictures that could be displayed as either 2 in.×2 1/2 in. (5.1 cm×6.4 cm) images suitable for a "wirephone", or 2 ft ×2 1/2 ft (61 cm×76 cm) images for television viewing. Two years later, using a single-spiral disc and three separately modulated light sources, he was able to produce full-colour images.[br]Bibliography1915, "The transformation of colour mixture equations", Journal of the Franklin Institute 180:673.1923, "do—Pt II", Journal of the Franklin Institute 195–23.1925, "Telephone picture transmission", Transactions of the Society of Motion Picture and Television Engineers 23:82.1929, "Television in colour", Bell Laboratories Record 7:439.1930, with A.L.Johnsrul, "Television in colour by a beam-scanning method", Journal of the Optical Society of America 20:11.Further ReadingJ.H.Udelson, 1982, The Great Television Race: History of the Television Industry 1925– 41: University of Alabama Press.KF -
8 asiduo
adj.1 assiduous, industrious, diligent, persevering.2 assiduous, continuous, constant, unremitting.3 assiduous, regular, consuetudinary, frequent.m.habitué.* * *► adjetivo1 assiduous, frequent, regular► nombre masculino,nombre femenino1 regular* * *asiduo, -a1.ADJ (=persistente) assiduous; (=frecuente) frequent, regular; [admirador] devoted2.SM / F regular, regular customerera un asiduo del café — he was one of the café's regulars o regular customers
* * *I- dua adjetivoa) ( persistente) <estudiante/lector> assiduous; < admirador> devotedII- dua masculino, femenino regular, habitué (frml)* * *= heavy [heavier -comp., heaviest -sup.], regular, assiduous, habitué.Ex. A leased line connection is useful for heavy users, since it offers higher speeds of transmission.Ex. Book form was generally regarded as too inflexible for library catalogues, especially where the catalogue required regular updating to cater for continuing and gradual expansion of the collection.Ex. The management of a large number of digital images requires assiduous attention to all stages of production.Ex. Morris writes rhapsodically about celebrity-studded parties, roistering interludes with major writers and artists, as well as gossip-column habitues.----* bebedor asiduo = frequent drinker.* * *I- dua adjetivoa) ( persistente) <estudiante/lector> assiduous; < admirador> devotedII- dua masculino, femenino regular, habitué (frml)* * *= heavy [heavier -comp., heaviest -sup.], regular, assiduous, habitué.Ex: A leased line connection is useful for heavy users, since it offers higher speeds of transmission.
Ex: Book form was generally regarded as too inflexible for library catalogues, especially where the catalogue required regular updating to cater for continuing and gradual expansion of the collection.Ex: The management of a large number of digital images requires assiduous attention to all stages of production.Ex: Morris writes rhapsodically about celebrity-studded parties, roistering interludes with major writers and artists, as well as gossip-column habitues.* bebedor asiduo = frequent drinker.* * *1 (persistente) ‹estudiante/lector› assiduous; ‹admirador› devoted2 (frecuente) ‹cliente› regular, frequentmasculine, feminineregular, habitué ( frml)un asiduo del casino a regular at the casino, a regular o frequent visitor to the casinoasiduos de la ópera regular o frequent operagoers* * *
asiduo◊ - dua adjetivo
‹ admirador› devoted
■ sustantivo masculino, femenino
regular
asiduo,-a
I adjetivo assiduous, regular
II m,f (cliente) regular customer
' asiduo' also found in these entries:
Spanish:
asidua
- habitual
English:
assiduous
- cinemagoer
- regular
- frequent
* * *asiduo, -a♦ adjregular;son asiduos visitantes de este museo they visit this museum regularly, they are regular visitors to this museum♦ nm,fregular;es un asiduo de este tipo de acontecimientos he's a regular at this type of event* * *adj regular;cliente asiduo regular customer* * *1) : assiduous2) : frequent, regular -
9 imagen escaneada
(n.) = paper imageEx. Ariel is the Research Libraries Group document image transmission software for sending paper images (TIFF files, specifically) of scanned documents over the Internet to other Ariel sites.* * *(n.) = paper imageEx: Ariel is the Research Libraries Group document image transmission software for sending paper images (TIFF files, specifically) of scanned documents over the Internet to other Ariel sites.
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10 mezcla
f.1 mixture.una mezcla explosiva an explosive combination (de personalidades, factores)una mezcla de tabacos a blend of tobaccos2 mixing.3 mix (Music).4 dough, kneading.5 mortar, plaster.6 crossbreed, mixing.pres.indicat.3rd person singular (él/ella/ello) present indicative of spanish verb: mezclar.* * *1 (acción) mixing, blending2 (producto) mixture, blend3 (de película etc) mixing4 (textil) mixed fibres5 (argamasa) mortar\mezcla de razas mixture of races* * *noun f.mix, mixture, blend* * *SF1) (=acción) [de ingredientes, colores] mixing; [de razas, culturas] mixing; [de sonidos] mixing; [de cafés, tabacos, whiskies] blendingmesa 1)2) (=resultado) [de ingredientes, colores] mixture; [de razas, culturas] mix; [de cafés, tabacos, whiskies] blendsin mezcla — [sustancia] pure; [gasolina] unadulterated
costumbres transmitidas sin mezcla de influencias externas — customs passed on without any external influence
mezcla explosiva — (lit) explosive mixture; (fig) lethal combination
3) (Mús) mix4) (Constr) mortar5) (Cos) blend, mix* * *1) ( proceso)a) ( de productos) mixing; (de vinos, tabacos, cafés) blendingb) (de razas, culturas) mixingc) (Audio) mixing2)a) ( combinación de - productos) mixture; (- vinos, tabacos, cafés) blend; (- tejidos) mixuna mezcla de distintos colores — a combination o mixture of different colors
b) (de razas, culturas) mixc) (Audio) mix•* * *= admixture, amalgam, blend, mix, mixing, mixture, alchemy, concoction, combination, potpourri, conflation, cocktail, recombination, bringing together, meld, mishmash, melange.Ex. No 'bona fide' author will wish to exhibit reduced output efficiency due to admixture with false authorship.Ex. Nevertheless, modern cataloguing practices often represent some amalgam of the collocative and the direct approaches.Ex. Thus in index or catalogue or data base design the indexer must choose an appropriate blend of recall and precision for each individual application.Ex. There are important employment opportunities available to people equipped with the right mix of skills and experience.Ex. This article describes the architecture and the main features of DOMINO, a multimedia information retrieval system whose data base is a collection of multimedia documents (MDs) constituted of a mixing of texts and images.Ex. When used by skilled abstractors this mixture of styles can achieve the maximum transmission of information, within a minimum length.Ex. This is a specialist service calling for a unique alchemy of librarian and computing skills.Ex. Statistics show black family life to be an appalling concoction of poverty, shooting and rampant teenage pregnancy.Ex. The software can search each field or a combination of fields.Ex. This center holds one of the most significant collections (dare we call it potpourri?) of science, natural history, art, history, and culture in the world = Este centre posee uno de las colecciones (¿o quizás popurrí?) más significativas de la ciencia, historia natural, arte, historia y cultura del mundo.Ex. It found differences in the abbreviations used and other stylistic matters (mainly due to language differences) but was able to propose a conflation of the descriptions that formed the basis of what became the SBD and later the ISBD.Ex. He rightly characterizes his book as a ' cocktail of personal and public observations.Ex. These genomes are inherited in strictly lineal fashion, without recombination.Ex. I have already mentioned that the bringing together of the various editions is the real problem.Ex. The article is entitled 'Scholars and media: an unmixable mess of oil and water or a perfect meld of oil and vinegar?'.Ex. We follow a mishmash of characters as they move through their unfortunate life without felicity.Ex. There were space cadets, aimless women -- the melange was incredible.----* hacer mezcla = mix + cement.* mezcla de lluvia helada y aguanieve = wint(e)ry mix, wint(e)ry shower.* mezcla heterogénea = mixed bag.* que mezcla sensaciones = synesthetic, cross-sensory.* sin mezcla = unmixed.* una mezcla de = a mixture of, a blend of, a mix of, a rollup of.* * *1) ( proceso)a) ( de productos) mixing; (de vinos, tabacos, cafés) blendingb) (de razas, culturas) mixingc) (Audio) mixing2)a) ( combinación de - productos) mixture; (- vinos, tabacos, cafés) blend; (- tejidos) mixuna mezcla de distintos colores — a combination o mixture of different colors
b) (de razas, culturas) mixc) (Audio) mix•* * *= admixture, amalgam, blend, mix, mixing, mixture, alchemy, concoction, combination, potpourri, conflation, cocktail, recombination, bringing together, meld, mishmash, melange.Ex: No 'bona fide' author will wish to exhibit reduced output efficiency due to admixture with false authorship.
Ex: Nevertheless, modern cataloguing practices often represent some amalgam of the collocative and the direct approaches.Ex: Thus in index or catalogue or data base design the indexer must choose an appropriate blend of recall and precision for each individual application.Ex: There are important employment opportunities available to people equipped with the right mix of skills and experience.Ex: This article describes the architecture and the main features of DOMINO, a multimedia information retrieval system whose data base is a collection of multimedia documents (MDs) constituted of a mixing of texts and images.Ex: When used by skilled abstractors this mixture of styles can achieve the maximum transmission of information, within a minimum length.Ex: This is a specialist service calling for a unique alchemy of librarian and computing skills.Ex: Statistics show black family life to be an appalling concoction of poverty, shooting and rampant teenage pregnancy.Ex: The software can search each field or a combination of fields.Ex: This center holds one of the most significant collections (dare we call it potpourri?) of science, natural history, art, history, and culture in the world = Este centre posee uno de las colecciones (¿o quizás popurrí?) más significativas de la ciencia, historia natural, arte, historia y cultura del mundo.Ex: It found differences in the abbreviations used and other stylistic matters (mainly due to language differences) but was able to propose a conflation of the descriptions that formed the basis of what became the SBD and later the ISBD.Ex: He rightly characterizes his book as a ' cocktail of personal and public observations.Ex: These genomes are inherited in strictly lineal fashion, without recombination.Ex: I have already mentioned that the bringing together of the various editions is the real problem.Ex: The article is entitled 'Scholars and media: an unmixable mess of oil and water or a perfect meld of oil and vinegar?'.Ex: We follow a mishmash of characters as they move through their unfortunate life without felicity.Ex: There were space cadets, aimless women -- the melange was incredible.* hacer mezcla = mix + cement.* mezcla de lluvia helada y aguanieve = wint(e)ry mix, wint(e)ry shower.* mezcla heterogénea = mixed bag.* que mezcla sensaciones = synesthetic, cross-sensory.* sin mezcla = unmixed.* una mezcla de = a mixture of, a blend of, a mix of, a rollup of.* * *1 (de productos) mixing; (de vinos, tabacos, cafés) blending2 (de razas, culturas) mixingestos perros son producto de una mezcla these dogs are crossbreeds3 ( Audio) mixingañadir cuatro cucharadas de azúcar a la mezcla add four spoonfuls of sugar to the mixturees una mezcla de distintos colores it is a combination o mixture of different colorsno me gusta la mezcla de dulce y salado I don't like mixing sweet and savory thingshabla una mezcla de inglés y francés he speaks a mixture of English and French2 (de razas, culturas) mix3 ( Audio) mix4 ( Const) mortarCompuesto:( Arm) explosive mixture* * *
Del verbo mezclar: ( conjugate mezclar)
mezcla es:
3ª persona singular (él/ella/usted) presente indicativo2ª persona singular (tú) imperativo
Multiple Entries:
mezcla
mezclar
mezcla sustantivo femenino
1 ( proceso)
2 ( combinación )
(de vinos, tabacos, cafés) blend;
( de tejidos) mix;
c) (Audio) mix
mezclar ( conjugate mezclar) verbo transitivo
1
mezcla algo con algo to mix sth with sth
2 ‹documentos/ropa› to mix up, get … mixed up;
mezcla algo con algo to get sth mixed up with sth
3 ( involucrar) mezcla a algn en algo to get sb mixed up o involved in sth
mezclarse verbo pronominal
1
b) ( tener trato con) mezclase con algn to mix with sb
2 [razas/culturas] to mix
mezcla sustantivo femenino
1 (acción) mixing, blending
Rad Cine mixing
2 (producto) mixture, blend: me gusta esta mezcla de cafés, I like this blend of coffee
Audio mix
Text mix
una mezcla de seda y lino, a silk/linen mix
mezclar verbo transitivo
1 (combinar, amalgamar) to mix, blend: no me gusta mezclar a los amigos, I don't like to mix my friends
2 (algo ordenado antes) to mix up: mezcló sus cosas con las tuyas, he got his things mixed up with yours
3 (involucrar) to involve, mix up
' mezcla' also found in these entries:
Spanish:
barro
- consistente
- expandirse
- homogeneizar
- spanglish
- consistencia
- contenido
- homogéneo
- mezclilla
- puro
English:
add in
- blend
- cross
- mix
- mixture
- Spanglish
- stand
- medley
- mixed
* * *mezcla nf1. [de materiales, productos] [resultado] mixture, combination;[acción] mixing;una mezcla de tabacos/whiskys a blend of tobaccos/whiskies;el verde es resultado de la mezcla del azul y del amarillo green is the result of mixing blue and yellow;cuando hierva la leche, añádala a la mezcla when the milk boils, add it to the mixture;es una mezcla de comedia y tragedia it's a mixture of comedy and tragedy2. [de culturas, pueblos] [resultado] mixture;[acción] mixing3. [tejido] mix4. Mús & TV [resultado] mix;[acción] mixing;mesa de mezclas mixing desk, mixer5. mezcla explosiva explosive mixture;Figla mezcla explosiva de alcohol y drogas the explosive combination of alcohol and drugs* * *f* * *mezcla nf1) : mixing2) : mixture, blend3) : mortar (masonry material)* * *mezcla n1. (en general) mixture2. (de tabaco) blend3. (de personas) mix -
11 penalizar
v.to penalize (gen) & (sport).El juez penó al ladrón The judge penalized the thief.* * *1 to penalize* * *VT1) (=sancionar) to penalize2) (Jur) to criminalize* * *verbo transitivo (Der) to penalize* * *= victimise [victimize, -USA], penalise [penalize, -USA], criminalise [criminalize, -USA].Ex. In the name of collegiality, students are victimized, considerable intellectual resources are being squandered, and the general public is deliberately misled.Ex. The author contends that this unfairly penalises any institution with limited finances, and contravenes the tradition of cooperation among Swiss libraries.Ex. The knowing transmission by telecommunications device of 'obscene or indecent' images or text to anyone under 18 years of age is criminalized.* * *verbo transitivo (Der) to penalize* * *= victimise [victimize, -USA], penalise [penalize, -USA], criminalise [criminalize, -USA].Ex: In the name of collegiality, students are victimized, considerable intellectual resources are being squandered, and the general public is deliberately misled.
Ex: The author contends that this unfairly penalises any institution with limited finances, and contravenes the tradition of cooperation among Swiss libraries.Ex: The knowing transmission by telecommunications device of 'obscene or indecent' images or text to anyone under 18 years of age is criminalized.* * *penalizar [A4 ]vt1 ( Der) to penalize, make … punishable by law2 ( Dep) to penalize* * *
penalizar ( conjugate penalizar) verbo transitivo (Der) to penalize
penalizar verbo transitivo to penalize
' penalizar' also found in these entries:
English:
penalize
* * *penalizar vt1. [sancionar] to penalize2. [en deporte] to penalize* * *v/t penalize* * *penalizar {21} vt: to penalize -
12 sancionar
v.1 to punish.2 to approve, to sanction.María sanciona su proceder Mary sanctions=approves of his actions.María sanciona a sus hijos Mary punishes her sons.3 to authorize.El juez sanciona al abogado The judge authorizes the lawyer.4 to ratify, to corroborate.Ella sanciona la información She ratifies the information.* * *1 (aprobar) to sanction2 (penar) to penalize* * *verb* * *VT1) (=castigar) [gen] to sanction; (Jur) to penalize2) (=permitir) to sanction* * *verbo transitivoestá sancionado por tres partidos — he has been banned o suspended for three games
2) <ley/disposición/acuerdo/huelga> to sanction; < costumbre> to approve, sanction* * *= enshrine, penalise [penalize, -USA], discipline, criminalise [criminalize, -USA].Ex. While much remains to be done, the right of every member of the public to see official documents is enshrined in law.Ex. The author contends that this unfairly penalises any institution with limited finances, and contravenes the tradition of cooperation among Swiss libraries.Ex. It draws from the cases some practical pointers for librariansin hiring, firing, and disciplining employees = Deduce de los casos algunos consejos prácticos para los bibliotecarios de cómo contratar, despedir y sancionar a los empleados.Ex. The knowing transmission by telecommunications device of 'obscene or indecent' images or text to anyone under 18 years of age is criminalized.* * *verbo transitivoestá sancionado por tres partidos — he has been banned o suspended for three games
2) <ley/disposición/acuerdo/huelga> to sanction; < costumbre> to approve, sanction* * *= enshrine, penalise [penalize, -USA], discipline, criminalise [criminalize, -USA].Ex: While much remains to be done, the right of every member of the public to see official documents is enshrined in law.
Ex: The author contends that this unfairly penalises any institution with limited finances, and contravenes the tradition of cooperation among Swiss libraries.Ex: It draws from the cases some practical pointers for librariansin hiring, firing, and disciplining employees = Deduce de los casos algunos consejos prácticos para los bibliotecarios de cómo contratar, despedir y sancionar a los empleados.Ex: The knowing transmission by telecommunications device of 'obscene or indecent' images or text to anyone under 18 years of age is criminalized.* * *sancionar [A1 ]vtA(castigar): el viajero sin billete será sancionado con una multa de 20 dólares any passenger traveling without a ticket will be fined 20 dollars o will be liable to a fine of 20 dollarsestá sancionado por tres partidos he has been banned o suspended for three gamesB ‹ley/disposición› to sanction; ‹acuerdo/huelga› to sanction, countenance ( frml); ‹costumbre› to approve, sanction, countenance ( frml)* * *
sancionar ( conjugate sancionar) verbo transitivo
1 ( multar) to fine;
( castigar) ‹empleado/obrero› to discipline;
‹ jugador› to penalize
2 ‹ley/disposición/acuerdo/huelga› to sanction;
‹ costumbre› to approve, sanction
sancionar verbo transitivo
1 (imponer un castigo) to penalize
(a un jugador, un trabajador) ser sancionado, to be suspended
(multar) to fine
2 (confirmar una ley, una costumbre) to sanction
' sancionar' also found in these entries:
English:
penalize
- sanction
- discipline
* * *sancionar vt1. [multar] to fine;[a un país] to impose sanctions on;lo sancionaron con una multa they fined him;lo sancionaron por desobedecer el reglamento he was punished for breaking the rules;Deple han sancionado con tres partidos de suspensión he has been suspended o banned for three games2. [aprobar] to approve, to sanction* * *v/t1 penalize2 ( multar) fine* * *sancionar vt1) : to penalize, to impose a sanction on2) : to sanction, to approve -
13 Ariel
Créé par RLG ( Research Library Group) en 1994 et distribué par la société Infotrieve, Ariel est un système électronique de transmission de documents. Avec un matériel informatique standard et un logiciel Ariel, les usagers peuvent scanner des articles, photos et autres documents, transmettre les images numériques obtenues à d’autres stations Ariel par FTP (file transfer protocol) ou courriel, convertir ces images numériques en fichiers PDF (portable document format) pour une réception plus aisée, et les imprimer sur toute imprimante compatible. La transmission d’un document étant plus claire et plus rapide par Ariel que par fax, l’utilisation d’Ariel est d’un grand secours pour les documents iconographiques et les textes aux caractères non latins. -
14 vidéo
Le terme "vidéo" désigne l’ensemble des techniques permettant de convertir les images animées et les sons en signaux électriques (signaux vidéo) pour enregistrement, diffusion, reproduction et transmission. La vidéo numérique apparaît dans les années 1990. Les séquences sont directement enregistrées sur un support informatique. Les applications de la vidéo numérique sont par exemple les effets spéciaux utilisés dans les films ou alors les images de synthèse qui, codées en mosaïques de chiffres, peuvent être combinées ensemble et/ou transformées. Dans les foyers, la cassette vidéo est progressivement supplantée par le CD-Rom (compact disc - read only memory) et le DVD-Rom (digital versatile disc - read only memory). Le DVD haute définition apparaît en 2006. La vidéo en ligne se popularise elle aussi en 2006 avec le succès du site YouTube, qui permet à tout un chacun, amateur ou professionnel, de poster ses vidéos. -
15 Bain, Alexander
[br]b. October 1810 Watten, Scotlandd. 2 January 1877 Kirkintilloch, Scotland[br]Scottish inventor and entrepreneur who laid the foundations of electrical horology and designed an electromagnetic means of transmitting images (facsimile).[br]Alexander Bain was born into a crofting family in a remote part of Scotland. He was apprenticed to a watchmaker in Wick and during that time he was strongly influenced by a lecture on "Heat, sound and electricity" that he heard in nearby Thurso. This lecture induced him to take up a position in Clerkenwell in London, working as a journeyman clockmaker, where he was able to further his knowledge of electricity by attending lectures at the Adelaide Gallery and the Polytechnic Institution. His thoughts naturally turned to the application of electricity to clockmaking, and despite a bitter dispute with Charles Wheatstone over priority he was granted the first British patent for an electric clock. This patent, taken out on 11 January 1841, described a mechanism for an electric clock, in which an oscillating component of the clock operated a mechanical switch that initiated an electromagnetic pulse to maintain the regular, periodic motion. This principle was used in his master clock, produced in 1845. On 12 December of the same year, he patented a means of using electricity to control the operation of steam railway engines via a steam-valve. His earliest patent was particularly far-sighted and anticipated most of the developments in electrical horology that occurred during the nineteenth century. He proposed the use of electricity not only to drive clocks but also to distribute time over a distance by correcting the hands of mechanical clocks, synchronizing pendulums and using slave dials (here he was anticipated by Steinheil). However, he was less successful in putting these ideas into practice, and his electric clocks proved to be unreliable. Early electric clocks had two weaknesses: the battery; and the switching mechanism that fed the current to the electromagnets. Bain's earth battery, patented in 1843, overcame the first defect by providing a reasonably constant current to drive his clocks, but unlike Hipp he failed to produce a reliable switch.The application of Bain's numerous patents for electric telegraphy was more successful, and he derived most of his income from these. They included a patent of 12 December 1843 for a form of fax machine, a chemical telegraph that could be used for the transmission of text and of images (facsimile). At the receiver, signals were passed through a moving band of paper impregnated with a solution of ammonium nitrate and potassium ferrocyanide. For text, Morse code signals were used, and because the system could respond to signals faster than those generated by hand, perforated paper tape was used to transmit the messages; in a trial between Paris and Lille, 282 words were transmitted in less than one minute. In 1865 the Abbé Caselli, a French engineer, introduced a commercial fax service between Paris and Lyons, based on Bain's device. Bain also used the idea of perforated tape to operate musical wind instruments automatically. Bain squandered a great deal of money on litigation, initially with Wheatstone and then with Morse in the USA. Although his inventions were acknowledged, Bain appears to have received no honours, but when towards the end of his life he fell upon hard times, influential persons in 1873 secured for him a Civil List Pension of £80 per annum and the Royal Society gave him £150.[br]Bibliography1841, British patent no. 8,783; 1843, British patent no. 9,745; 1845, British patent no.10,838; 1847, British patent no. 11,584; 1852, British patent no. 14,146 (all for electric clocks).1852, A Short History of the Electric Clocks with Explanation of Their Principles andMechanism and Instruction for Their Management and Regulation, London; reprinted 1973, introd. W.Hackmann, London: Turner \& Devereux (as the title implies, this pamphlet was probably intended for the purchasers of his clocks).Further ReadingThe best account of Bain's life and work is in papers by C.A.Aked in Antiquarian Horology: "Electricity, magnetism and clocks" (1971) 7: 398–415; "Alexander Bain, the father of electrical horology" (1974) 9:51–63; "An early electric turret clock" (1975) 7:428–42. These papers were reprinted together (1976) in A Conspectus of Electrical Timekeeping, Monograph No. 12, Antiquarian Horological Society: Tilehurst.J.Finlaison, 1834, An Account of Some Remarkable Applications of the Electric Fluid to the Useful Arts by Alexander Bain, London (a contemporary account between Wheatstone and Bain over the invention of the electric clock).J.Munro, 1891, Heroes of the Telegraph, Religious Tract Society.J.Malster \& M.J.Bowden, 1976, "Facsimile. A Review", Radio \&Electronic Engineer 46:55.D.J.Weaver, 1982, Electrical Clocks and Watches, Newnes.T.Hunkin, 1993, "Just give me the fax", New Scientist (13 February):33–7 (provides details of Bain's and later fax devices).See also: Bakewell, Frederick C.DV / KF -
16 электрорентгеносканирование
с.xeroradiography and radionuclide scanning, xeroradiography with overlapping of images, emission-transmission imaging techniqueБольшой русско-английский медицинский словарь > электрорентгеносканирование
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17 numérisation
La numérisation est la codification d’informations (textes, images, sons) en langage généralement binaire (0 ou 1) pour permettre leur traitement par voie informatique. La numérisation permet la création, l’enregistrement, la combinaison, le stockage, la recherche et la transmission de documents de manière simple et rapide. Des procédés similaires permettent le traitement du texte, du son et de l’image alors que, par le passé, ce traitement était assuré par des procédés différents et sur des supports différents (le papier pour l’écriture, la bande magnétique pour la musique, le celluloïd pour le cinéma). En ce qui concerne les livres, la numérisation peut être effectuée soit en mode texte, soit en mode image. -
18 télécommunications
Le terme "télécommunications" est un terme générique qui inclut toute transmission, émission ou réception de signes, de signaux, de textes, d’images et de sons, ou encore toute information transmise par le biais d’un système électrique, radio-électrique, électromagnétique ou optique.Voir aussi: information. -
19 télévision
La télévision est un "dispositif de transmission instantanée d’images, par câble ou par ondes hertziennes" (encyclopédie Encarta). Auquel s’ajoutent ensuite le satellite, avec ses paraboles ornant les toits et les balcons, puis le câble. En 1996, la télévision se marie avec l’internet grâce au système web TV, qui permet de se connecter directement à l’internet à partir de son téléviseur. Peu après, on peut aussi regarder la télévision sur l’écran de son ordinateur. Au début des années 2000, tout comme pour l’ordinateur, l’écran LCD (liquid crystal display) ultra-plat concurrence l’écran cathodique classique. On assiste également aux débuts de la télévision numérique, notamment avec la DTTV (ou DTT: digital terrestrial television). En 2006 apparaissent les grands écrans branchés à l’ordinateur pour contempler tout à loisir les vidéos et films choisis sur le web. En mai 2007 débute une nouvelle ère télévisée avec le lancement de Joost, un service gratuit de télévision sur l’internet permettant de regarder les grandes chaînes de télévision sur son ordinateur. -
20 Bakewell, Frederick C.
SUBJECT AREA: Telecommunications[br]fl. 1850s[br]British inventor of the "copying telegraph", the basis of facsimile transmission.[br]Although little appears to be known about his life, Bakewell deserves a place in this dictionary for a single invention that was to have a significant impact upon communication. The invention of photography early in the nineteenth century soon led to a desire to transmit images over a distance. Although telegraphy was still very much in its infancy, Bakewell realized that the key to a viable system of facsimile, as it came to be known, was to dissect the image to be transmitted sequentially by scanning it in a series of parallel lines with some sort of sensor and to synchronously reconstruct it at the receiving end—a process that anticipated the way in which modern television works. To this end the line image was drawn with varnish on a sheet of tin foil, which was then wrapped around a cylinder. As the cylinder was rotated, presumably by some kind of regulated clockwork mechanism similar to that used later in the early phonographs of Edison, an electrical contact driven by a screw thread caused the image to be scanned along a spiral path, giving a series of on-off signals. At the receiving end, instead of the tin foil, a sheet of paper wetted with a suitable chemical was darkened by the current pulses as they arrived.A practicable system did not become possible until a dry form of receiving-paper that was insensitive to light became available in the 1930s; once established, however, the technique remained the basis of commercial machines into the 1980s.[br]Bibliography1853, Electric Science.1857, A Manual of Electricity.Further ReadingJ.Malster \& M.J.Bowden, 1976, "Facsimile. A Review", Radio \& Electronic Engineer 46:55.See also: Bain, AlexanderKF
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