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121 Coolidge, William David
[br]b. 23 October 1873 Hudson, Massachusetts, USAd. 3 February 1975 New York, USA[br]American physicist and metallurgist who invented a method of producing ductile tungsten wire for electric lamps.[br]Coolidge obtained his BS from the Massachusetts Institute of Technology (MIT) in 1896, and his PhD (physics) from the University of Leipzig in 1899. He was appointed Assistant Professor of Physics at MIT in 1904, and in 1905 he joined the staff of the General Electric Company's research laboratory at Schenectady. In 1905 Schenectady was trying to make tungsten-filament lamps to counter the competition of the tantalum-filament lamps then being produced by their German rival Siemens. The first tungsten lamps made by Just and Hanaman in Vienna in 1904 had been too fragile for general use. Coolidge and his life-long collaborator, Colin G. Fink, succeeded in 1910 by hot-working directly dense sintered tungsten compacts into wire. This success was the result of a flash of insight by Coolidge, who first perceived that fully recrystallized tungsten wire was always brittle and that only partially work-hardened wire retained a measure of ductility. This grasped, a process was developed which induced ductility into the wire by hot-working at temperatures below those required for full recrystallization, so that an elongated fibrous grain structure was progressively developed. Sintered tungsten ingots were swaged to bar at temperatures around 1,500°C and at the end of the process ductile tungsten filament wire was drawn through diamond dies around 550°C. This process allowed General Electric to dominate the world lamp market. Tungsten lamps consumed only one-third the energy of carbon lamps, and for the first time the cost of electric lighting was reduced to that of gas. Between 1911 and 1914, manufacturing licences for the General Electric patents had been granted for most of the developed work. The validity of the General Electric monopoly was bitterly contested, though in all the litigation that followed, Coolidge's fibering principle was upheld. Commercial arrangements between General Electric and European producers such as Siemens led to the name "Osram" being commonly applied to any lamp with a drawn tungsten filament. In 1910 Coolidge patented the use of thoria as a particular additive that greatly improved the high-temperature strength of tungsten filaments. From this development sprang the technique of "dispersion strengthening", still being widely used in the development of high-temperature alloys in the 1990s. In 1913 Coolidge introduced the first controllable hot-cathode X-ray tube, which had a tungsten target and operated in vacuo rather than in a gaseous atmosphere. With this equipment, medical radiography could for the first time be safely practised on a routine basis. During the First World War, Coolidge developed portable X-ray units for use in field hospitals, and between the First and Second World Wars he introduced between 1 and 2 million X-ray machines for cancer treatment and for industrial radiography. He became Director of the Schenectady laboratory in 1932, and from 1940 until 1944 he was Vice-President and Director of Research. After retirement he was retained as an X-ray consultant, and in this capacity he attended the Bikini atom bomb trials in 1946. Throughout the Second World War he was a member of the National Defence Research Committee.[br]Bibliography1965, "The development of ductile tungsten", Sorby Centennial Symposium on the History of Metallurgy, AIME Metallurgy Society Conference, Vol. 27, ed. Cyril Stanley Smith, Gordon and Breach, pp. 443–9.Further ReadingD.J.Jones and A.Prince, 1985, "Tungsten and high density alloys", Journal of the Historical Metallurgy Society 19(1):72–84.ASDBiographical history of technology > Coolidge, William David
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122 قام (وقف)، نهض، بنى
قَامَ (وَقَفَ)، نَهَضَ، بَنَى \ get up: to stand up: He got up from his chair. go up: to be built or put up: Many new houses are going up in our village. rise: to get up from a sitting or lying position: He rose to his feet (from the chair). stand up: to rise from a sitting position: The visitor stood up and walked out. stand, (stood): (of upright things) to be in a certain position: Some pots stood on the shelf., (often with up) to be on one’s feet: The seats were full, so we had to stand (up). \ قَامَ بِـ \ carry on: to control, keep in action: You can’t carry on a business without accounts. do: (used generally instead of a particular verb of action) to attend to; deal with; set in order: Have you done (or written) that report yet? Has the cook done (or prepared) the vegatables for dinner? Have you done (or cleaned) your teeth?. do: to perform (work, one’s duty etc.): I have a lot to do. have: to take: Do you have milk in your coffee?. in the process of: to be doing: I am in the process of painting my house. perform: to do (a duty, an action, etc.). \ See Also تناول (تَنَاوَل)، أنجز (أَنْجَزَ) \ قَامَ بالعمل \ function: to work: My radio isn’t functioning properly. \ قَامَ بتَجْرِبَة \ experiment: to try new ideas (esp. scientific ones): We were experimenting with a special kind of cotton seed. \ قَامَ بدور البُطُولة \ star: to be a leading performer: She is starring in a television show. \ قَامَ بِرِحْلَة \ tour: to make a tour: We toured (around) Europe for three weeks. \ قَامَ بزيارة \ pay a visit, to: to visit (as a duty, rather than for pleasure): I must pay a visit to the doctor. \ قَامَ بزيارة خاطفة \ look in: to pay a short visit: Do look in when you pass this way. \ قَامَ بِزيارَة شخص \ pay (sb.) a visit: to visit (sb.): I’ll pay you a visit when I next go to London. \ قَامَ بصيانة وإصْلاح آلة \ service: to give regular attention to (a machine): I have my car serviced every 6000 miles. \ See Also إلخ \ قَامَ بِعَمَله \ work: (of a machine, an idea, etc.) to do what it is meant to do; to be effective: This watch won’t work, as its spring is broken. Our plans worked smoothly. \ قَامَ بنزهة على الأقدام \ stretch one’s legs: to exercise one’s legs (after sitting for a long time); go for a walk. \ قَامَ بنفقة (أُسْرَة) \ support: to provide for: I have to support a large family. \ قَامَ بِهُجومٍ (جَويّ) مُفاجئ \ blitz: (to make) a sudden and violent attack, esp. by air. \ قَامَ على خِدْمَة... \ wait: (with on) to serve: Hotel servants wait on their guests. \ قَامَ على... \ base: to build on sth. or take it as a starting point: My story was based on true events. \ قَامَ مَقَام \ act for: to perform duties for: The headmaster is ill, and Mr Day is acting for him. stand for: (of signs, letters, etc.) to be instead of; mean: UK stands for United Kingdom. \ قَامَ بمظاهرة \ demonstrate: to show one’s feelings publicly, often with much noise and force: The farmers demonstrated against the control of meat prices. -
123 Thinking
But what then am I? A thing which thinks. What is a thing which thinks? It is a thing which doubts, understands, [conceives], affirms, denies, wills, refuses, which also imagines and feels. (Descartes, 1951, p. 153)I have been trying in all this to remove the temptation to think that there "must be" a mental process of thinking, hoping, wishing, believing, etc., independent of the process of expressing a thought, a hope, a wish, etc.... If we scrutinize the usages which we make of "thinking," "meaning," "wishing," etc., going through this process rids us of the temptation to look for a peculiar act of thinking, independent of the act of expressing our thoughts, and stowed away in some particular medium. (Wittgenstein, 1958, pp. 41-43)Analyse the proofs employed by the subject. If they do not go beyond observation of empirical correspondences, they can be fully explained in terms of concrete operations, and nothing would warrant our assuming that more complex thought mechanisms are operating. If, on the other hand, the subject interprets a given correspondence as the result of any one of several possible combinations, and this leads him to verify his hypotheses by observing their consequences, we know that propositional operations are involved. (Inhelder & Piaget, 1958, p. 279)In every age, philosophical thinking exploits some dominant concepts and makes its greatest headway in solving problems conceived in terms of them. The seventeenth- and eighteenth-century philosophers construed knowledge, knower, and known in terms of sense data and their association. Descartes' self-examination gave classical psychology the mind and its contents as a starting point. Locke set up sensory immediacy as the new criterion of the real... Hobbes provided the genetic method of building up complex ideas from simple ones... and, in another quarter, still true to the Hobbesian method, Pavlov built intellect out of conditioned reflexes and Loeb built life out of tropisms. (S. Langer, 1962, p. 54)Experiments on deductive reasoning show that subjects are influenced sufficiently by their experience for their reasoning to differ from that described by a purely deductive system, whilst experiments on inductive reasoning lead to the view that an understanding of the strategies used by adult subjects in attaining concepts involves reference to higher-order concepts of a logical and deductive nature. (Bolton, 1972, p. 154)There are now machines in the world that think, that learn and create. Moreover, their ability to do these things is going to increase rapidly until-in the visible future-the range of problems they can handle will be coextensive with the range to which the human mind has been applied. (Newell & Simon, quoted in Weizenbaum, 1976, p. 138)But how does it happen that thinking is sometimes accompanied by action and sometimes not, sometimes by motion, and sometimes not? It looks as if almost the same thing happens as in the case of reasoning and making inferences about unchanging objects. But in that case the end is a speculative proposition... whereas here the conclusion which results from the two premises is an action.... I need covering; a cloak is a covering. I need a cloak. What I need, I have to make; I need a cloak. I have to make a cloak. And the conclusion, the "I have to make a cloak," is an action. (Nussbaum, 1978, p. 40)It is well to remember that when philosophy emerged in Greece in the sixth century, B.C., it did not burst suddenly out of the Mediterranean blue. The development of societies of reasoning creatures-what we call civilization-had been a process to be measured not in thousands but in millions of years. Human beings became civilized as they became reasonable, and for an animal to begin to reason and to learn how to improve its reasoning is a long, slow process. So thinking had been going on for ages before Greece-slowly improving itself, uncovering the pitfalls to be avoided by forethought, endeavoring to weigh alternative sets of consequences intellectually. What happened in the sixth century, B.C., is that thinking turned round on itself; people began to think about thinking, and the momentous event, the culmination of the long process to that point, was in fact the birth of philosophy. (Lipman, Sharp & Oscanyan, 1980, p. xi)The way to look at thought is not to assume that there is a parallel thread of correlated affects or internal experiences that go with it in some regular way. It's not of course that people don't have internal experiences, of course they do; but that when you ask what is the state of mind of someone, say while he or she is performing a ritual, it's hard to believe that such experiences are the same for all people involved.... The thinking, and indeed the feeling in an odd sort of way, is really going on in public. They are really saying what they're saying, doing what they're doing, meaning what they're meaning. Thought is, in great part anyway, a public activity. (Geertz, quoted in J. Miller, 1983, pp. 202-203)Everything should be made as simple as possible, but not simpler. (Einstein, quoted in Minsky, 1986, p. 17)What, in effect, are the conditions for the construction of formal thought? The child must not only apply operations to objects-in other words, mentally execute possible actions on them-he must also "reflect" those operations in the absence of the objects which are replaced by pure propositions. Thus, "reflection" is thought raised to the second power. Concrete thinking is the representation of a possible action, and formal thinking is the representation of a representation of possible action.... It is not surprising, therefore, that the system of concrete operations must be completed during the last years of childhood before it can be "reflected" by formal operations. In terms of their function, formal operations do not differ from concrete operations except that they are applied to hypotheses or propositions [whose logic is] an abstract translation of the system of "inference" that governs concrete operations. (Piaget, quoted in Minsky, 1986, p. 237)[E]ven a human being today (hence, a fortiori, a remote ancestor of contemporary human beings) cannot easily or ordinarily maintain uninterrupted attention on a single problem for more than a few tens of seconds. Yet we work on problems that require vastly more time. The way we do that (as we can observe by watching ourselves) requires periods of mulling to be followed by periods of recapitulation, describing to ourselves what seems to have gone on during the mulling, leading to whatever intermediate results we have reached. This has an obvious function: namely, by rehearsing these interim results... we commit them to memory, for the immediate contents of the stream of consciousness are very quickly lost unless rehearsed.... Given language, we can describe to ourselves what seemed to occur during the mulling that led to a judgment, produce a rehearsable version of the reaching-a-judgment process, and commit that to long-term memory by in fact rehearsing it. (Margolis, 1987, p. 60)Historical dictionary of quotations in cognitive science > Thinking
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124 tren
m.1 train (ferrocarril).ir en tren to go by rail o trainel tren en Suiza funciona muy bien the railways in Switzerland are very efficienttren de alta velocidad high-speed traintren de carga freight o goods traintren de cercanías local train, suburban traintren correo mail traintren directo through traintren de largo recorrido long-distance traintren de mercancías freight o goods traintren nocturno overnight train2 line (mechanics).tren de aterrizaje undercarriage, landing geartren de lavado car wash3 series, chain, train.* * *1 (ferrocarril) train2 MILITAR convoy3 (conjunto de máquinas) convoy, line4 figurado (ritmo, modo) speed, pace\cambiar de tren to change, change train, US transfercoger el tren / tomar el tren to catch a trainestar como un tren / estar como para parar un tren familiar to be a bit of all rightir en tren to go by trainperder el train figurado to miss the boatvivir a todo tren figurado to live a life of luxurytren correo mail traintren de alta velocidad high-speed traintren de aterrizaje undercarriagetren de cercanías suburban traintren de lavado car washtren de mercancías / tren de carga goods train, US freight traintren de pasajeros passenger traintren de vida life style, way of lifetren directo through train* * *noun m.* * *SM1) (Ferro) traincambiar de tren — to change trains, change train
subirse a o tomar o coger un tren — to catch a train
perder el tren de algo —
perdimos el tren de la revolución científica — when it came to the scientific revolution, we missed the boat
este país no puede perder una vez más el tren del cambio — this country mustn't get left behind on the road to change
subirse al tren de algo —
no han sabido subirse al tren de la reconversión económica — they failed to take the road to economic restructuring
no era de esos que se empeñaban en subirse al tren de la unión europea — he was not one of those determined to jump on o climb on the European bandwagon
tren ascendente — † up train
tren botijo — † * excursion train
tren de carga — goods train, freight train (EEUU)
tren de carretera — articulated lorry (Brit), articulated truck (EEUU)
tren de cercanías — suburban train, local train
tren de mercancías — goods train, freight train (EEUU)
tren descendente — † down train
tren eléctrico — (=medio de transporte) electric train; (=juguete) (electric) train set
tren expreso — express, express train
tren ómnibus — † stopping train, local train, accommodation train (EEUU)
tren rápido — express, express train
2) (=ritmo)- vivir a todo tren3) (Mec) set ( of gears, wheels)tren de aterrizaje — (Aer) undercarriage, landing gear
tren delantero — (Aut) front wheel assembly
tren de lavado — (Aut) car wash
tren trasero — (Aut) rear wheel assembly
4) [en viajes] (=equipaje) luggage; (=equipo) equipment5) (Mil) convoy6)en tren de — LAm in the process of
8) CAma) (=trajín) coming and goingb) pl trenes shady dealings9) Méx (=tranvía) tram, streetcar (EEUU)10) Caribe (=majadería) cheeky remark* * *1) (Ferr) traintomar or (esp Esp) coger el tren — to take o catch the train
estar como un tren — (Esp fam) to be gorgeous (colloq), to be hot stuff (colloq)
perder el tren — ( refiriéndose a oportunidad) to miss the boat
subirse al tren de algo: quieren subirse al tren de las nuevas tecnologías they want to jump on the new technology bandwagon; hay que subirse al tren del progreso! — we must keep up with the times
2) (fam) ( ritmo) ratea este tren — at this rate (colloq)
a todo tren — (fam)
estar en tren de hacer algo — (CS) to be in the process of doing something
3) ( conjunto) assembly•* * *= train.Ex. If none of these terms is appropriate1/4 give the specific name of the item or the names of the parts of the item as concisely as possible; e.g., 1 clockwork toy train.----* abono de tren = rail pass.* asalto al tren = train robbery.* bajarse del tren = get off + the train.* billete de tren = train ticket.* estación de tren = rail yard, train station, railway station.* horario de trenes = train timetable.* servicios de trenes = rail facilities.* subirse al tren = jump on + the bandwagon, ride + the hype.* trayecto en tren = train ride.* tren a vapor = steam train.* tren de juguete = toy train.* tren delantero = front end.* tren de mercancías = freight train, goods train.* tren de pasajeros = passenger train.* tren de vapor = steam train.* tren hospital = hospital train.* tren trasero = rear end.* viaje en tren = train ride.* * *1) (Ferr) traintomar or (esp Esp) coger el tren — to take o catch the train
estar como un tren — (Esp fam) to be gorgeous (colloq), to be hot stuff (colloq)
perder el tren — ( refiriéndose a oportunidad) to miss the boat
subirse al tren de algo: quieren subirse al tren de las nuevas tecnologías they want to jump on the new technology bandwagon; hay que subirse al tren del progreso! — we must keep up with the times
2) (fam) ( ritmo) ratea este tren — at this rate (colloq)
a todo tren — (fam)
estar en tren de hacer algo — (CS) to be in the process of doing something
3) ( conjunto) assembly•* * *= train.Ex: If none of these terms is appropriate1/4 give the specific name of the item or the names of the parts of the item as concisely as possible; e.g., 1 clockwork toy train.
* abono de tren = rail pass.* asalto al tren = train robbery.* bajarse del tren = get off + the train.* billete de tren = train ticket.* estación de tren = rail yard, train station, railway station.* horario de trenes = train timetable.* servicios de trenes = rail facilities.* subirse al tren = jump on + the bandwagon, ride + the hype.* trayecto en tren = train ride.* tren a vapor = steam train.* tren de juguete = toy train.* tren delantero = front end.* tren de mercancías = freight train, goods train.* tren de pasajeros = passenger train.* tren de vapor = steam train.* tren hospital = hospital train.* tren trasero = rear end.* viaje en tren = train ride.* * *A1 ( Ferr) trainvine en tren or tomé or cogí el tren I came by train, I took o caught the traintuve que correr para agarrar or ( esp Esp) coger el tren I had to run to catch o get the traincambiar de tren to change trainsle regalaron un trencito or ( Esp) trenecito (de juguete) he was given a toy train setdejar (botado) el tren a algn ( Chi fam): no quiero que me deje (botada) el tren I don't want to be left on the shelf ( colloq)llevarse el tren a algn ( Méx fam): como siguió bebiendo, se lo llevó el tren he didn't stop drinking and he snuffed it o he kicked the bucket ( colloq), he drank himself to deathsi no pagamos pronto, nos va a llevar el tren if we don't pay soon, we're going to be in big troubleperdí or se me fue el tren (literal) I missed the train; (refiriéndose a una oportunidad) I missed the boat, I missed outsubirse al tren de algo: todos quieren subirse al tren de las nuevas tecnologías everyone wants to get in on new technology, everyone wants to jump o climb on the new-technology bandwagon¡hay que subirse al tren del progreso! we must keep up with the timesCompuestos:night trainmail trainhigh-speed trainfreight train, goods train ( BrE)local train, suburban trainrack o cog railwayghost trainlong-distance trainfreight train, goods train ( BrE)passenger trainthrough trainelectric trainexpress trainghost trainnight trainmail trainexpress traina este tren at this rate ( colloq)lleva un tren de vida intensísimo she leads a very hectic life, she has a very hectic lifestylea este tren no llegaremos nunca we'll never get there at this ratetuvieron una boda a todo tren they had a lavish weddinglo tuvimos que hacer a todo tren we had to work flat out o at top speedestar en tren de hacer algo (CS); to be in the process of doing sthestamos en tren de mudarnos we're in the process o in the middle of moving houseya que estamos en tren de criticar, te diré que … since we seem to be in a critical vein o since we seem to be criticizing people, let me tell you that …estoy en tren de salir I'm just going out, I'm just on my way outC (conjunto) assemblyCompuestos:undercarriage, landing gear● tren de laminación or de laminadosrolling millcarwashassembly linefront wheel assemblyrear wheel assembly* * *
tren sustantivo masculino
1 (Ferr) train;
tomar or (esp Esp) coger el tren to take o catch the train;
cambiar de tren to change trains;
tren correo or postal mail train;
tren de alta velocidad high-speed train;
tren de cercanías local o suburban train;
tren directo through train;
tren expreso or rápido express train
2 (fam) ( ritmo) rate;◊ a este tren at this rate (colloq);
tren de vida lifestyle
tren sustantivo masculino
1 Ferroc train
tren de alta velocidad, high-speed train
tren de largo recorrido/de cercanías, long-distance/suburban train
2 Av tren de aterrizaje, undercarriage, US landing gear
3 (nivel de vida) life style
♦ Locuciones: familiar estar como un tren, to be very handsome
a todo tren, in style
tren de vida, life style
fam fig para parar un tren, (gran cantidad de algo) tienen dinero para parar un tren, they're swimming in money
' tren' also found in these entries:
Spanish:
A
- apearse
- aterrizaje
- aunque
- AVE
- bajar
- bajarse
- carga
- cargamento
- cercanía
- circular
- coche
- correo
- destino
- diurna
- diurno
- efectuar
- en
- encarrilar
- exprés
- expresa
- expreso
- juguete
- mercancía
- nocturna I
- nocturno
- para
- partida
- pasar
- pitar
- preferible
- rápida
- rápido
- recorrido
- retrasarse
- salida
- se
- soler
- subir
- subirse
- suburbana
- suburbano
- tirarse
- tomar
- tope
- traqueteo
- usted
- ustedes
- vaivén
- ventanilla
English:
aboard
- account
- approach
- blow
- boat
- by
- call
- call at
- catch
- change
- collide
- come in
- connect
- connected
- connection
- delay
- delayed
- depart
- derail
- dissatisfaction
- do
- draw
- draw in
- draw out
- draw up
- driver
- for
- freight train
- freshen up
- get in
- guard
- high-speed
- hoot
- inspector
- landing gear
- late
- leave
- lifestyle
- long-distance
- mailtrain
- miss
- model
- move
- move off
- moving
- nonstop
- off
- outbound
- overdue
- pull
* * *tren nm1. [vehículo] train;el tren en Suiza funciona muy bien the trains in Switzerland are very efficient;ir en tren to go by rail o train;ir a buen tren to be going well;perder el tren de algo: hemos perdido el tren de las nuevas tecnologías we have missed the boat o bus as far as the new technologies are concerned;no podemos permitirnos perder el tren de Europa we can't afford to get left behind by the rest of Europe;subirse al tren de algo: la empresa debe subirse al tren del progreso the company must keep pace with progress;era un oportunista que se subió al tren del posmodernismo he was an opportunist who jumped on the postmodernist bandwagon;Famcomo para parar un tren: estar como (para parar) un tren to be stunning, to be a smasher;nos dieron comida como para parar un tren they gave us enough food to feed an army;RP Famseguirle el tren a alguien to keep up with sbtren de alta velocidad high-speed train;tren de cercanías local train, suburban train;tren correo mail train;tren directo through train;tren expreso express train;tren fantasma ghost train;tren de largo recorrido long-distance train;tren nocturno overnight train, night train;tren ómnibus local train;tren rápido fast train;tren semidirecto = train that stops only at certain stations, US limited train2. Tec linetren de aterrizaje undercarriage, landing gear;tren desbastador roughing mill;tren de lavado car wash3. [estilo]a todo tren: un banquete a todo tren a banquet with all the trimmings, a lavish banquet;vivir a todo tren to live in style;RP Famen tren de: ya que estamos en tren de diversión, podríamos ir a bailar seeing as we're out for a good time, we could go dancing;parecían en tren de aventura they seemed to be up for a bit of adventuretren de vida lifestyle* * *m FERR train;ir en tren go by train;perder el tren miss the train; fig miss the boat;vivir a todo tren fam live in style;… (como) para parar un tren fam loads of … fam, masses of … fam ;estar como un tren fam be absolutely gorgeous* * *tren nm1) : train2) : set, assemblytren de aterrizaje: landing gear3) : speed, pacea todo tren: at top speed* * *tren n train -
125 cours
cours [kuʀ]masculine noun• faire or donner un cours sur to give a class (or lecture or course) on• qui vous fait cours en anglais ? who takes you for English?• donner/prendre des cours particuliers to give/have private lessonsb. ( = enseignement) class• cours préparatoire/élémentaire/moyen first/second or third/fourth or fifth year in primary schoolc. ( = établissement) schoold. [de rivière] avoir un cours rapide to be fast-flowing• sur une partie de son cours on or along part of its coursee. [de valeurs, matières premières] price ; [de devises] rate• avoir cours [monnaie] to be legal tenderf. ( = déroulement) course• c'est en cours de réparation/réfection it's being repaired/rebuilt* * *kuʀnom masculin invariable1) ( session d'enseignement) École lesson, class; Université class; ( magistral) lecture; ( hors cadre scolaire) class; ( en privé) lesson; ( ensemble de sessions) coursesuivre un cours — to do ou take a course
faire un cours sur quelque chose — ( une fois) to give a class in something; ( plusieurs fois) to teach a course in something
donner des cours de français — ( dans l'enseignement) to teach French; ( en privé) to give French lessons
3) ( établissement) schoolavoir cours — Finance [monnaie] to be legal tender; fig [théorie, pratique] to be current; [terme] to be used
ne plus avoir cours — Finance [monnaie] to be no longer legal tender; fig [théorie, pratique] to be no longer accepted; [terme] to be no longer used
5) ( de rivière) ( parcours) course; ( débit) flow6) ( enchaînement) (de récit, carrière, d'événements) course; ( d'idées) flowdonner libre cours à — to give free rein to [imagination]; to give way to [peine]; to give vent to [colère]
au or dans le cours de — in the course of, during
en cours — [mois, semaine, année] current; [processus, projet] under way (après n); [travail, négociations, changements] in progress (après n)
en cours de journée/saison — in the course of the day/season
en cours de fabrication/rénovation — in the process of being manufactured/renovated
le pont en cours de construction — the bridge being built ou under construction
•Phrasal Verbs:* * *kuʀ nm1) (= leçon) classLe professeur d'anglais l'a surpris en train de faire ses maths pendant son cours. — The English teacher caught him doing his maths during his class.
2) (= série de leçons) course3) (= cheminement) course4) (= écoulement) flow5) (= avenue) walk6) COMMERCE, BOURSE, [action, dollar, devise] ratedonner libre cours à — to give free expression to, [imagination] to give free rein to
avoir cours [monnaie] — to be legal tender, figto be current, (à l'école) to have a class, (à l'université) to have a lecture
au cours de — in the course of, during
Il a été réveillé trois fois au cours de la nuit. — He was woken up three times during the night.
* * *cours nm inv1 ( session d'enseignement) Scol lesson, class; Univ class; ( magistral) lecture; ( hors cadre scolaire) class; ( en privé) lesson; ( ensemble de sessions) course; avoir cours to have a class; je n'ai pas cours demain I haven't got any lessons ou classes tomorrow; prendre des cours de qch to take classes in sth; tu devrais prendre des cours de diction you should go to elocution classes; suivre un cours to do ou take a course; il prend des cours d'espagnol he's taking Spanish lessons; je suis un cours de secrétariat/cuisine/littérature I'm doing ou taking a secretarial/cookery/literature course; je suis les cours du professeur X I'm attending Professor X's lectures; le professeur X a publié son cours sur la traduction Professor X has published his/her course of lectures on translation; faire cours to teach; qui vous fait cours en maths? who teaches you maths GB ou math US?; faire un cours sur qch ( une fois) to give a class in sth; ( plusieurs fois) to teach a course in sth; il nous a fait un véritable cours sur la gastronomie he gave us a real lecture on gastronomy; donner des cours de français/piano ( dans l'enseignement) to teach French/piano; ( en privé) to give French/piano lessons;3 ( établissement) school; cours de théâtre drama school;4 Fin ( taux de négociation) (de denrée, valeur) price; ( de devise) exchange rate; le cours du change the exchange rate; le cours du dollar the price of the dollar; cours légal official exchange rate; les cours boursiers or de la Bourse Stock Exchange prices; le cours du marché the market price; acheter qch au cours des halles to buy sth at wholesale market price; cours d'ouverture/de clôture or fermeture opening/closing price; avoir cours Fin [monnaie] to be legal tender; fig [théorie, pratique] to be current; [terme, expression] to be used; ne plus avoir cours Fin [monnaie] to be no longer legal tender; fig [théorie, pratique] to be no longer accepted; [terme, expression] to be no longer used;5 ( de rivière) ( parcours) course; ( débit) flow; détourner le cours d'une rivière to divert the course of a river; avoir un cours lent/rapide to flow slowly/quickly; fleuve au cours rapide fast-flowing river; descendre/remonter le cours d'une rivière to go down/to go up a river;6 ( enchaînement) (de récit, conflit, carrière, maladie) course; ( d'idées) flow; ( d'événements) course; les choses suivent tranquillement leur cours things are quietly taking their course; le cours des choses the course of events; reprendre son cours to resume; la vie reprend son cours life returns to normal; la sonnerie interrompit le cours de mes pensées the bell interrupted my train of thought; donner libre cours à to give free rein to [imagination, fantaisie]; to give way to [peine, douleur]; to give vent to [colère, indignation]; au or dans le cours de in the course of, during; dans le cours du mois prochain in the course of next month; dans le cours du mois within the month; en cours [mois, semaine, année] current; [processus, projet] under way ( après n); [travail, négociations, changements] in progress ( après n); en cours de journée/saison/séance in the course of the day/season/session; en cours de fabrication/rénovation in the process of being manufactured/renovated; le pont en cours de construction the bridge being built ou under construction; le pont est en cours de construction the bridge is under construction ou in the process of being built; en cours de route along the way; rajoutez un peu d'eau en cours de cuisson add some water during the cooking.cours accéléré crash course; cours de compensation Fin mark-up price; cours d'eau watercourse; cours élémentaire deuxième année, CE2 third year of primary school, age 8-9; cours élémentaire première année, CE1 second year of primary school, age 7-8; cours intensif intensive course; cours magistral Univ lecture; cours moyen deuxième année, CM2 fifth year of primary school, age 10-11; cours moyen première année, CM1 fourth year of primary school, age 9-10; cours d'initiation introductory course; cours intensif intensive course; cours par correspondance correspondence course; suivre des cours par correspondance to take a correspondence course; cours particulier(s) private tuition ¢ GB, private tutoring ¢ US (en, de in); donner/suivre des cours particuliers to give/to have private tuition ou lessons; cours de perfectionnement improvers' course; cours préparatoire, CP Scol first year of primary school, age 6-7; cours de rattrapage remedial course; cours de remise à niveau refresher course; cours du soir evening class.[kur] nom masculinA.[ÉCOULEMENT, SUCCESSION]1. GÉOGRAPHIE [débit] flow[parcours] coursea. [ruisseau] streamb. [rivière] river2. [déroulement - des années, des saisons, de pensées] course ; [ - d'événements] course, run ; [ - de négociations, d'une maladie, de travaux] course, progressdonner ou laisser (libre) cours àa. [joie, indignation] to give vent tob. [imagination, chagrin] to give free rein tosuivre son cours [processus] to continueen suivant/remontant le cours du temps going forward/back in time3. [dans des noms de rue] avenueB.[DANS LE DOMAINE FINANCIER]1. [de devises] ratecours des devises ou du change foreign exchange rate ou rate of exchangea. [monnaie] to be legal tender ou legal currencyb. [pratique] to be commonavoir cours légal to be legal tender ou a legal currencya. [monnaie] to be out of circulation, to be no longer legal tender ou a legal currencyb. [pratique, théorie] to be obsoletec. [expression, terme] to be obsolete ou no longer in useau cours du marché at the market ou trading pricepremier cours, cours d'ouverture opening pricedernier cours, cours de clôture closing priceC.[DANS LE DOMAINE SCOLAIRE ET UNIVERSITAIRE][ensemble des leçons] coursesuivre un cours ou des cours d'espagnol to go to ou to attend a Spanish classprendre des cours to take lessons ou a coursej'ai cours tout à l'heure [élève, professeur] I have a class laterj'ai cours tous les jours [élève, professeur] I have classes every daytu ne vas pas me faire un cours sur la politesse? are you going to give me a lecture on how to be polite?donner/prendre des cours particuliers to give/to have private tuition[notes] notes3. [degré - dans l'enseignement primaire]4. [établissement] school————————au cours de locution prépositionnelle————————en cours locution adjectivale[actuel]l'année/le tarif en cours the current year/priceaffaire/travail en cours business/work in handêtre en cours [débat, réunion, travaux] to be under way, to be in progress————————en cours de locution prépositionnelleen cours de réparation in the process of being repaired, undergoing repairs -
126 operation
[ɒpə'reɪʃn] noun1) (causing to work) (of machine) Bedienung, die; (of lever, brake) Betätigung, die; (of factory, mine, etc.) Betrieb, der; (of bus service etc.) Unterhaltung, die2) (way something works) Arbeitsweise, die3) (being operative)come into operation — [Gesetz, Gebühr usw.:] in Kraft treten
be in operation — [Maschine, Gerät usw.:] in Betrieb sein; [Service:] zur Verfügung stehen; [Gesetz:] in Kraft sein
be out of operation — [Maschine, Gerät usw.:] außer Betrieb sein
4) (performance) Tätigkeit, dierepeat the operation — das Ganze [noch einmal] wiederholen
5) (Med.) Operation, diehave an operation [on one's foot] — [am Fuß] operiert werden
6) (Mil.) Einsatz, der* * *1) (an action or process, especially when planned: a rescue operation.) das Unternehmen2) (the process of working: Our plan is now in operation.) der Betrieb3) (the act of surgically cutting a part of the body in order to cure disease: an operation for appendicitis.) die Operation4) ((often in plural) the movement, fighting etc of armies: The general was in command of operations in the north.) der Einsatz* * *op·era·tion[ˌɒpərˈeɪʃən, AM ˌɑ:pəˈreɪ-]nthe \operation of communism requires people to give up their individual identities der Kommunismus kann nur dann funktionieren, wenn die Menschen ihre Eigenständigkeit aufgebenthe \operation of gravity keeps us standing on the ground dank der Schwerkraft bleiben wir auf dem Boden stehenday-to-day [or everyday] \operation gewöhnlicher Betriebsablauf, Geschäftsgang mhours of \operation Geschäftszeiten plby \operation of law kraft Gesetzesdaily/hourly \operation täglicher/stündlicher Betriebthe bus service is in hourly \operation during off-peak times außerhalb der Stoßzeiten fahren die Busse stündlichto come into \operation machines in Gang kommen [o Betrieb genommen werden]; plan, rule, law in Kraft treten, wirksam werdento put sth into \operation machine etw in Betrieb nehmen; regulations etw anwenden; scheme, plan etw in die Tat umsetzenrepairing this old watch is a very delicate \operation das Reparieren dieser alten Uhr ist eine sehr diffizile Angelegenheitto undertake an \operation etwas vornehmen, an eine Sache herangehenhow is the \operation going these days? wie läuft denn der Betrieb jetzt so?the company's \operations in West Africa.. die Geschäfte der Firma in West Afrika...; MIL Operation f, Einsatz mO\operation Desert Storm Operation Wüstensturmrescue \operation Rettungsaktion fsecurity \operation Sicherheitsmaßnahmen pl, Einsatz m von Sicherheitskräftenhumanitarian \operation humanitärer Einsatzto launch an \operation mit einer Aktion beginnento start \operations on sth die Arbeit an etw dat aufnehmenheart/lung \operation Herz-/Lungenoperation fto perform an \operation eine Operation durchführen7. FIN [finanzielle] Transaktionmathematical \operation mathematische Operation, Rechenvorgang m* * *["ɒpə'reISən]n1) (= act of operating as in vi) (of machine, mechanism, system) Funktionieren nt; (of plan) Durchführung f; (of theory) Anwendung f; (= method of functioning) (of machine, organization) Arbeitsweise f; (of system, organ) Funktionsweise f; (of law) Wirkungsweise fto be in operation (machine) — in Betrieb sein; (law) in Kraft sein; (plan) durchgeführt werden
to be out of operation — außer Betrieb sein; ( fig : person ) nicht einsatzfähig sein
to come into operation (machine) — in Gang kommen; (law) in Kraft treten; (plan) zur Anwendung gelangen
2) (= act of operating as in vt) (of machine etc) Bedienung f, Handhabung f; (of small mechanism) Betätigung f; (of business) Betreiben nt, Führen nt; (of system, policy) Anwendung f; (of plan, law) Durchführung f; (of route) Bedienung f; (of bus service etc) Unterhaltung f; (of tours) Veranstaltung fto have a serious/heart operation — sich einer schweren Operation/einer Herzoperation unterziehen
4) (= enterprise) Unternehmen nt, Unternehmung f, Operation f; (= task, stage in undertaking) Arbeitsgang m; (MATH) Rechenvorgang m, Operation fto cease/resume operations — den Geschäftsverkehr einstellen/wieder aufnehmen
* * *on auf akk)by operation of law kraft Gesetzes;come into operation wirksam werden, in Kraft treten;be in operation in Kraft oder wirksam sein3. TECH Betrieb m, Tätigkeit f, Lauf m (einer Maschine etc):in operation in Betrieb;put ( oder set) in (out of) operation in (außer) Betrieb setzen; → academic.ru/60521/ready">ready A 1a) Wirkungs-, Arbeitsweise fb) Arbeits(vor)gang m, Verfahren n, (Arbeits)Prozess m:operation of thinking fig Denkvorgang, -prozess;chemical operation chemischer Prozess;operations scheduling Arbeitsvorbereitung f, zeitliche Arbeitsplanung5. TECH Inbetriebsetzung f, Handhabung f, Bedienung f (einer Maschine etc)6. Arbeit f:building operations Bauarbeiten7. WIRTSCHa) Betrieb m:continuous operation durchgehender (Tag- und Nacht)Betrieb;in operation in Betriebb) Unternehmen n, -nehmung f, Betrieb m:c) Geschäft n8. MATH Operation f, Ausführung f (einer Rechenvorschrift)9. MED Operation f, (chirurgischer) Eingriff:operation for appendicitis Blinddarmoperation;have an operation operiert werden;perform an operation (on sb) (an jemandem) einen (chirurgischen) Eingriff vornehmen;major (minor) operationa) größere (kleinere oder harmlose) Operation,b) umg große Sache, schwere Geburt (Kleinigkeit f)10. MIL Operation f, Einsatz m, Unternehmung f, (Angriffs)Unternehmen n:op. abk1. opera2. operation3. operator4. opposite5. optical opt.6. opus Op.* * *[ɒpə'reɪʃn] noun1) (causing to work) (of machine) Bedienung, die; (of lever, brake) Betätigung, die; (of factory, mine, etc.) Betrieb, der; (of bus service etc.) Unterhaltung, die2) (way something works) Arbeitsweise, diecome into operation — [Gesetz, Gebühr usw.:] in Kraft treten
be in operation — [Maschine, Gerät usw.:] in Betrieb sein; [Service:] zur Verfügung stehen; [Gesetz:] in Kraft sein
be out of operation — [Maschine, Gerät usw.:] außer Betrieb sein
4) (performance) Tätigkeit, dierepeat the operation — das Ganze [noch einmal] wiederholen
5) (Med.) Operation, diehave an operation [on one's foot] — [am Fuß] operiert werden
6) (Mil.) Einsatz, der* * *(surgery) n.Operation (Chirurgie) f. n.Arbeitsablauf m.Arbeitsgang m.Bedienung f.Betrieb -e m.Gang ¨-e m.Operation f.Tätigkeit f.Verfahren n. -
127 Archer, Frederick Scott
SUBJECT AREA: Photography, film and optics[br]b. 1813 Bishops Stortford, Hertfordshire, Englandd. May 1857 London, England[br]English photographer, inventor of the wet-collodion process, the dominant photographic process between 1851 and c.1880.[br]Apprenticed to a silversmith in London, Archer's interest in coin design and sculpture led to his taking up photography in 1847. Archer began experiments to improve Talbot's calotype process and by 1848 he was investigating the properties of a newly discovered material, collodion, a solution of gun-cotton in ether. In 1851 Archer published details of a process using collodion on glass plates as a carrier for silver salts. The process combined the virtues of both the calotype and the daguerreotype processes, then widely practised, and soon displaced them from favour. Collodion plates were only sensitive when moist and it was therefore essential to use them immediately after they had been prepared. Popularly known as "wet plate" photography, it became the dominant photographic process for thirty years.Archer introduced other minor photographic innovations and in 1855 patented a collodion stripping film. He had not patented the wet-plate process, however, and made no financial gain from his photographic work. He died in poverty in 1857, a matter of some embarrassment to his contemporaries. A subscription fund was raised, to which the Government was subsequently persuaded to add an annual pension.[br]Bibliography1851, Chemist (March) (announced Archer's process).Further ReadingJ.Werge, 1890, The Evolution of Photography.H.Gernsheim and A.Gernsheim, 1969, The History of "Photography", rev. edn, London.JWBiographical history of technology > Archer, Frederick Scott
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128 Deville, Henri Etienne Sainte-Claire
SUBJECT AREA: Metallurgy[br]b. 11 March 1818 St Thomas, Virgin Islandsd. 1 July 1881 Boulogne-sur-Seine, France[br]French chemist and metallurgist, pioneer in the large-scale production of aluminium and other light metals.[br]Deville was the son of a prosperous shipowner with diplomatic duties in the Virgin Islands. With his elder brother Charles, who later became a distinguished physicist, he was sent to Paris to be educated. He took his degree in medicine in 1843, but before that he had shown an interest in chemistry, due particularly to the lectures of Thenard. Two years later, with Thenard's influence, he was appointed Professor of Chemistry at Besançon. In 1851 he was able to return to Paris as Professor at the Ecole Normale Supérieure. He remained there for the rest of his working life, greatly improving the standard of teaching, and his laboratory became one of the great research centres of Europe. His first chemical work had been in organic chemistry, but he then turned to inorganic chemistry, specifically to improve methods of producing the new and little-known metal aluminium. Essentially, the process consisted of forming sodium aluminium trichloride and reducing it with sodium to metallic aluminium. He obtained sodium in sufficient quantity by reducing sodium carbonate with carbon. In 1855 he exhibited specimens of the metal at the Paris Exhibition, and the same year Napoleon III asked to see them, with a view to using it for breastplates for the Army and for spoons and forks for State banquets. With the resulting government support, he set up a pilot plant at Jarvel to develop the process, and then set up a small company, the Société d'Aluminium at Nan terre. This raised the output of this attractive and useful metal, so it could be used more widely than for the jewellery to which it had hitherto been restricted. Large-scale applications, however, had to await the electrolytic process that began to supersede Deville's in the 1890s. Deville extended his sodium reduction method to produce silicon, boron and the light metals magnesium and titanium. His investigations into the metallurgy of platinum revolutionized the industry and led in 1872 to his being asked to make the platinum-iridium (90–10) alloy for the standard kilogram and metre. Deville later carried out important work in high-temperature chemistry. He grieved much at the death of his brother Charles in 1876, and his retirement was forced by declining health in 1880; he did not survive for long.[br]BibliographyDeville published influential books on aluminium and platinum; these and all his publications are listed in the bibliography in the standard biography by J.Gray, 1889, Henri Sainte-Claire Deville: sa vie et ses travaux, Paris.Further ReadingM.Daumas, 1949, "Henri Sainte-Claire Deville et les débuts de l'industrie de l'aluminium", Rev.Hist.Sci 2:352–7.J.C.Chaston, 1981, "Henri Sainte-Claire Deville: his outstanding contributions to the chemistry of the platinum metals", Platinum Metals Review 25:121–8.LRDBiographical history of technology > Deville, Henri Etienne Sainte-Claire
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