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1 physics of failure
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2 physics of failure
механика отказа
физическая сущность отказа
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[ http://slovarionline.ru/anglo_russkiy_slovar_neftegazovoy_promyishlennosti/]Тематики
Синонимы
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природа отказа
механизм отказа
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[Л.Г.Суменко. Англо-русский словарь по информационным технологиям. М.: ГП ЦНИИС, 2003.]Тематики
Синонимы
EN
Англо-русский словарь нормативно-технической терминологии > physics of failure
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3 physics of failure
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4 physics of failure
Большой англо-русский и русско-английский словарь > physics of failure
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5 physics of failure
Англо-русский словарь нефтегазовой промышленности > physics of failure
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6 physics of failure
1) Вычислительная техника: физика отказов2) Нефть: механика отказа, физическая сущность отказа3) Сетевые технологии: механизм отказа, природа отказа -
7 physics of failure
природа отказа; механизм отказа -
8 physics of failure
механика отказа; природа [физическая сущность] отказаThe English-Russian dictionary on reliability and quality control > physics of failure
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9 physics
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10 механика отказа
Большой англо-русский и русско-английский словарь > механика отказа
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11 физическая сущность отказа
Большой англо-русский и русско-английский словарь > физическая сущность отказа
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12 power
power ['paʊə(r)]puissance ⇒ 1 (a), 1 (c), 1 (d) force ⇒ 1 (a) pouvoir ⇒ 1 (b), 1 (e), 1 (f) capacité ⇒ 1 (e) faculté ⇒ 1 (f) courant ⇒ 1 (g) faire fonctionner ⇒ 21 noun(a) (strength, force → gen) puissance f, force f; Physics (→ of engine, lens, microscope) puissance f; (→ of magnet) force f;∎ I underestimated the power of the explosion j'ai sous-estimé la puissance ou la force de l'explosion;∎ they could see the power of his muscles ils voyaient travailler ses muscles puissants;∎ we want greater economic and industrial power nous voulons renforcer la puissance économique et industrielle;∎ at full power à plein régime;∎ the vehicle moves under its own power le véhicule se déplace par ses propres moyens ou de façon autonome;∎ sea/air power puissance f maritime/aérienne;∎ familiar the holiday did me a power of good les vacances m'ont fait un bien fou;∎ the power of the Church/of student unions le pouvoir de l'Église/des syndicats étudiants;∎ to have sb in one's power avoir qn en son pouvoir;∎ to be in sb's power être à la merci de qn;∎ to fall into sb's power tomber au pouvoir de qn;∎ to be in power être au pouvoir;∎ to come (in)to/to take power arriver au/prendre le pouvoir;∎ to lose power perdre le pouvoir;∎ to have the power to decide/judge avoir le pouvoir de décider/juger, avoir autorité pour décider/juger;∎ absolute/executive/legislative power pouvoir absolu/exécutif/législatif;∎ the committee doesn't really have much power le comité n'a pas grand pouvoir;∎ to act with full powers agir de pleine autorité;∎ the police have been given greater powers la police a reçu des pouvoirs plus importants;∎ it's beyond or outside my power(s) cela dépasse ma compétence ou ne relève pas de mon autorité;∎ it's beyond my power to do anything je n'ai pas compétence en la matière, je ne suis pas habilité à intervenir(c) (influential group or person) puissance f;∎ the President is the real power in the land c'est le président qui détient le véritable pouvoir dans le pays;∎ to be a power in the land avoir une grande influence ou être très puissant dans un pays;∎ the powers of darkness les forces fpl ou puissances fpl des ténèbres;∎ the (real) power behind the throne (individual) l'éminence f grise, celui (celle) m,f qui tire les ficelles; (group) ceux mpl qui tirent les ficelles, les véritables acteurs mpl;∎ no power on earth will persuade me to go rien au monde ne me persuadera d'y aller∎ the great Western powers les grandes puissances occidentales;∎ industrial/nuclear/world power (country) puissance industrielle/nucléaire/mondiale(e) (ability, capacity) capacité f, pouvoir m;∎ he has great powers as an orator or great oratorical powers il a de grands talents oratoires;∎ to be at the height or peak of one's powers être à l'apogée de sa puissance;∎ it's within her power to do it c'est en son pouvoir, elle est capable de le faire;∎ I'll do everything in my power to help you je ferai tout mon possible ou tout ce qui est en mon pouvoir pour vous aider;∎ magical/aphrodisiacal powers pouvoirs mpl magiques/aphrodisiaques;∎ to have great powers of persuasion/suggestion avoir un grand pouvoir ou une grande force de persuasion/suggestion;∎ the body's powers of resistance la capacité de résistance du corps;∎ she has great intellectual powers elle a de grandes capacités intellectuelles;∎ her powers are failing ses facultés déclinent;∎ the power of sight la vue;∎ the power of hearing l'ouïe f;∎ the power of reason la raison;∎ he lost the power of speech il a perdu l'usage de la parole∎ to turn on/cut off the power mettre/couper le courant∎ nuclear/solar power énergie f nucléaire/solaire(j) Mathematics puissance f;∎ 5 to the power (of) 6 5 puissance 6;∎ raised to the 5th power élevé à la puissance 5(give power to) faire fonctionner ou marcher; (propel) propulser;∎ powered by solar energy fonctionnant à l'énergie solaire;∎ the boat is powered by gas turbines le bateau est propulsé par des turbines à gazavancer à toute vitesse, foncer;∎ he powered into his opponent il fonça sur son adversaire;∎ the leading cars powered down the home straight les voitures de tête foncèrent dans la dernière ligne;∎ his business is powering on son affaire monte en puissance►► Law power of attorney procuration f;∎ to give sb power of attorney donner procuration à qn;power base assise f politique;Marketing power brand marque f forte;power breakfast = petit déjeuner d'affaires entre personnes importantes;power broker décideur(euse) m,f politique;power cut coupure f de courant;Aviation power dive (descente f en) piqué m;British power dressing = façon de s'habiller qu'adoptent certaines femmes cadres dans le but de projeter une image d'autorité;power drill perceuse f électrique;power failure panne f de courant;power game lutte f d'influence, course f au pouvoir;power line ligne f à haute tension;power lunch déjeuner m d'affaires entre personnes importantes;American power outage rupture f de l'alimentation;Electricity power pack bloc m d'alimentation électrique;power plant (factory) centrale f électrique; (generator) groupe m électrogène; (engine) groupe m moteur;power play (in ice hockey) coup m de force;power point prise f de courant;power politics (UNCOUNT) politique f du coup de force;Mathematics power set ensemble m des sous-ensembles;Politics power sharing partage m du pouvoir;power shower douche f à jet puissant;power station centrale f (électrique);Cars power steering direction f assistée;power strike grève f des employés de l'électricité;power structure (system) hiérarchie f, répartition f des pouvoirs; (people with power) = ensemble des personnes qui détiennent le pouvoir;power struggle lutte f pour le pouvoir;power supply Electricity alimentation f (électrique); Computing transformateur m;power tool outil m électrique;Computing power unit dispositif m d'alimentation;power user gros (grosse) utilisateur(trice) m,f; Computing = personne qui sait utiliser au mieux les ressources de son ordinateur;power walking marche f sportive;power worker employé(e) m,f de l'électricité;power yoga power yoga m (forme de yoga où l'on travaille en puissance)éteindre, mettre hors tension(computer, machine) s'éteindre, se mettre hors tension➲ power upmettre sous tension, allumer(computer, machine) se mettre sous tension, s'allumer -
13 rate
• rytmi• toruastock exchange• noteerata• nopeusfinance, business, economy• noteeraus• hinta• hinnoitella• vauhti• verottaatechnology• vauhti (tek.)• vero• vauhti(tekniikka)• arvioida• aste• arvostaa• prosenttitransport• rahtiphysics• kerroin• harkita• määrä• maksu• suhde• taksoittaafinance, business, economy• tariffoida• taksa• tahtiphysics• taajuus• tariffifinance, business, economy• kurssi• kurssitasofinance, business, economy• kurssi (noteeraus)• kunnallisvero• kuulua luokkaan• pitää• lukea• läksyttää• luokka* * *reit 1. noun1) (the number of occasions within a given period of time when something happens or is done: a high (monthly) accident rate in a factory.) lukumäärä2) (the number or amount of something (in relation to something else); a ratio: There was a failure rate of one pupil in ten in the exam.) määrä3) (the speed with which something happens or is done: He works at a tremendous rate; the rate of increase/expansion.) vauhti, nopeus4) (the level (of pay), cost etc (of or for something): What is the rate of pay for this job?) taso5) ((usually in plural) a tax, especially, in United Kingdom, paid by house-owners etc to help with the running of their town etc.) vero2. verb(to estimate or be estimated, with regard to worth, merit, value etc: I don't rate this book very highly; He doesn't rate very highly as a dramatist in my estimation.) arvostaa, yltää- rating- at this
- at that rate
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14 De Forest, Lee
SUBJECT AREA: Broadcasting, Electronics and information technology, Photography, film and optics, Recording, Telecommunications[br]b. 26 August 1873 Council Bluffs, Iowa, USAd. 30 June 1961 Hollywood, California, USA[br]American electrical engineer and inventor principally known for his invention of the Audion, or triode, vacuum tube; also a pioneer of sound in the cinema.[br]De Forest was born into the family of a Congregational minister that moved to Alabama in 1879 when the father became President of a college for African-Americans; this was a position that led to the family's social ostracism by the white community. By the time he was 13 years old, De Forest was already a keen mechanical inventor, and in 1893, rejecting his father's plan for him to become a clergyman, he entered the Sheffield Scientific School of Yale University. Following his first degree, he went on to study the propagation of electromagnetic waves, gaining a PhD in physics in 1899 for his thesis on the "Reflection of Hertzian Waves from the Ends of Parallel Wires", probably the first US thesis in the field of radio.He then joined the Western Electric Company in Chicago where he helped develop the infant technology of wireless, working his way up from a modest post in the production area to a position in the experimental laboratory. There, working alone after normal working hours, he developed a detector of electromagnetic waves based on an electrolytic device similar to that already invented by Fleming in England. Recognizing his talents, a number of financial backers enabled him to set up his own business in 1902 under the name of De Forest Wireless Telegraphy Company; he was soon demonstrating wireless telegraphy to interested parties and entering into competition with the American Marconi Company.Despite the failure of this company because of fraud by his partners, he continued his experiments; in 1907, by adding a third electrode, a wire mesh, between the anode and cathode of the thermionic diode invented by Fleming in 1904, he was able to produce the amplifying device now known as the triode valve and achieve a sensitivity of radio-signal reception much greater than possible with the passive carborundum and electrolytic detectors hitherto available. Patented under the name Audion, this new vacuum device was soon successfully used for experimental broadcasts of music and speech in New York and Paris. The invention of the Audion has been described as the beginning of the electronic era. Although much development work was required before its full potential was realized, the Audion opened the way to progress in all areas of sound transmission, recording and reproduction. The patent was challenged by Fleming and it was not until 1943 that De Forest's claim was finally recognized.Overcoming the near failure of his new company, the De Forest Radio Telephone Company, as well as unsuccessful charges of fraudulent promotion of the Audion, he continued to exploit the potential of his invention. By 1912 he had used transformer-coupling of several Audion stages to achieve high gain at radio frequencies, making long-distance communication a practical proposition, and had applied positive feedback from the Audion output anode to its input grid to realize a stable transmitter oscillator and modulator. These successes led to prolonged patent litigation with Edwin Armstrong and others, and he eventually sold the manufacturing rights, in retrospect often for a pittance.During the early 1920s De Forest began a fruitful association with T.W.Case, who for around ten years had been working to perfect a moving-picture sound system. De Forest claimed to have had an interest in sound films as early as 1900, and Case now began to supply him with photoelectric cells and primitive sound cameras. He eventually devised a variable-density sound-on-film system utilizing a glow-discharge modulator, the Photion. By 1926 De Forest's Phonofilm had been successfully demonstrated in over fifty theatres and this system became the basis of Movietone. Though his ideas were on the right lines, the technology was insufficiently developed and it was left to others to produce a system acceptable to the film industry. However, De Forest had played a key role in transforming the nature of the film industry; within a space of five years the production of silent films had all but ceased.In the following decade De Forest applied the Audion to the development of medical diathermy. Finally, after spending most of his working life as an independent inventor and entrepreneur, he worked for a time during the Second World War at the Bell Telephone Laboratories on military applications of electronics.[br]Principal Honours and DistinctionsInstitute of Electronic and Radio Engineers Medal of Honour 1922. President, Institute of Electronic and Radio Engineers 1930. Institute of Electrical and Electronics Engineers Edison Medal 1946.Bibliography1904, "Electrolytic detectors", Electrician 54:94 (describes the electrolytic detector). 1907, US patent no. 841,387 (the Audion).1950, Father of Radio, Chicago: WIlcox \& Follett (autobiography).De Forest gave his own account of the development of his sound-on-film system in a series of articles: 1923. "The Phonofilm", Transactions of the Society of Motion Picture Engineers 16 (May): 61–75; 1924. "Phonofilm progress", Transactions of the Society of Motion Picture Engineers 20:17–19; 1927, "Recent developments in the Phonofilm", Transactions of the Society of Motion Picture Engineers 27:64–76; 1941, "Pioneering in talking pictures", Journal of the Society of Motion Picture Engineers 36 (January): 41–9.Further ReadingG.Carneal, 1930, A Conqueror of Space (biography).I.Levine, 1964, Electronics Pioneer, Lee De Forest (biography).E.I.Sponable, 1947, "Historical development of sound films", Journal of the Society of Motion Picture Engineers 48 (April): 275–303 (an authoritative account of De Forest's sound-film work, by Case's assistant).W.R.McLaurin, 1949, Invention and Innovation in the Radio Industry.C.F.Booth, 1955, "Fleming and De Forest. An appreciation", in Thermionic Valves 1904– 1954, IEE.V.J.Phillips, 1980, Early Radio Detectors, London: Peter Peregrinus.KF / JW -
15 power
1) ((an) ability: A witch has magic power; A cat has the power of seeing in the dark; He no longer has the power to walk.) sposobnost2) (strength, force or energy: muscle power; water-power; ( also adjective) a power tool (=a tool operated by electricity etc. not by hand).) moč3) (authority or control: political groups fighting for power; How much power does the Queen have?; I have him in my power at last) oblast4) (a right belonging to eg a person in authority: The police have the power of arrest.) pooblastilo5) (a person with great authority or influence: He is quite a power in the town.) velika živina6) (a strong and influential country: the Western powers.) sila7) (the result obtained by multiplying a number by itself a given number of times: 2 × 2 × 2 or 23 is the third power of 2, or 2 to the power of 3.) potenca•- powered- powerful
- powerfully
- powerfulness
- powerless
- powerlessness
- power cut
- failure
- power-driven
- power point
- power station
- be in power* * *I [páuə]nounmoč, sila, sposobnost (telesna in duševna); plural zmožnosti, sposobnosti, dar, talent; vlada, oblast, gospostvo ( over nad); vpliv; juridically polnomočje, pooblastilo; politics moč, sila, oblast ( power politics politika sile); država, velesila ( great ŋs velesile); vplivna oseba, vplivno mesto; višja sila, božanstvo, duhovi ( the ŋs above višja sila, bogovi); colloquially množina, sila česa ( a power of people sila ljudi); mathematics potenca ( ɔ to the power of three ɔ na tretjo potenco); physics sila, energija, zmogljivost; electrical (jaki) tok; technical mehanična, gonilna sila ( horse ŋ konjska sila); optics zmogljivost povečanja lečecolloquially more power to you ( —ali to your elbow) ! — srečno!, mnogo uspeha!to do all in one's power — storiti, kar je komu mogočeto be in power — biti na oblasti, biti na krmiluto be in s.o.'s power — biti v oblasti kogato have s.o. in one's power — imeti koga v oblastito have (no) power over s.o. — (ne) imeti oblast(i) nad kom, (ne) imeti vpliv(a) pri komjuridically full power, s — polnomočjejuridically power of attorney — pooblastilo, polnomočjethe powers that be — oblast, oblastnikitechnical mechanical powers — strojiunder one's own power — z lastno silo (tudi figuratively)the A.B.C. powers — Argentina, Brazilija, ČileII [páuə]transitive verboskrbeti z mehanično silo, z električno energijo -
16 power
power [ˈpaʊər]1. nounb. ( = force) [of person, blow, sun] force f• the power of love/thought la force de l'amour/de la penséec. ( = authority) pouvoir m• in power [party] au pouvoire. [of engine, device] puissance f• microwave on full power for a minute faites chauffer au micro-ondes à puissance maximale pendant une minute3. compounds[+ computer] éteindre[+ computer] allumer* * *['paʊə(r)] 1.to be in/come to power — être/accéder au pouvoir
2) ( strength) puissance f4) ( capability) pouvoir mto be at the height of one's powers — gen avoir atteint la plénitude de ses moyens; [artist] être au sommet de son art
6) ( physical force) (of person, explosion) force f; ( of storm) violence f8) (of vehicle, plane) puissance fto be running at full/half power — fonctionner à plein/mi-régime
9) ( magnification) puissance f10) Mathematics11) ( country) puissance f2.noun modifier Technology, Electricity [ drill, circuit, cable] électrique; [ steering, brakes] assisté; [ mower] à moteur; [ shovel] mécanique; [breakfast, lunch] de travail3.transitive verb faire marcher [engine]; propulser [plane, boat]powered by — propulsé par [engine]; alimenté par [electricity, gas, generator]
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17 noun
n имя существительное (1). Имена собственные для обозначения всех членов семьи употребляются в форме множественного числа и с определенным артиклем:The Browns are coming to tea tonight — Сегодня на чай приедут Брауны.
(2). Имена собирательные, такие, как audience, committee, family, poultry, union и др. могут употребляться с глаголом и в единственном, и во множественном числе, в зависимости от того, понимаются ли они как единое целое или подразумеваются отдельные члены таких группировок. (3). Ряд существительных предпочтительнее употреблять в сочетании с последующим инфинитивом в качестве их определения и указания цели. В такой конструкции наиболее часто используются существительные и субстантивированные прилагательные:ability — способность,
inability — неспособность,
attempt — попытка,
chance — возможность, шанс,
desire — желание,
decision — решение, решимость,
failure — неудача,
intention — намерение,
opportunity — удобный случай,
work — работа,
the last — последний,
the first — первый.
(4). Некоторые лексические группы и лексические единицы употребляются без артикля:а) названия трапез — to have breakfast (lunch, dinner, tea);б) названия улиц, площадей — Oxford Street, Red Square;в) названия одиночных горных пиков, одиночных озер — Elbrus, Baikal;г) названия наук: history, biology, physics.(5). Ряд существительных обычно объединяются с предлогом of. К ним относятся существительные idea, habit, hope. (6). Ряд существительных в именной конструкции требует одного фиксированного предлога управления:а) предлога to — access, answer, alternative, approach, damage, devotion, exception, introduction, preface, reference, reply, resistance, return, solution, threat, wetness;б) предлога for — admiration, credit, cure, demand, desire, dislike, disregard, disrespect, hunger, love, need, regard, remedy, respect, responsibility, room, sympathy, taste, thirst;в) предлога on/upon — attack, comment, concentration, dependence, effect, insistence, restriction, tax;г) предлога with — sympathy, connection, contrast, correspondence, link, quarrel, relations, relationship. -
18 know
know [nəʊ]connaître ⇒ 1 (a)-(c), 1 (g) savoir ⇒ 1 (c), 2 reconnaître ⇒ 1 (e) distinguer ⇒ 1 (f) discerner ⇒ 1 (f) considérer ⇒ 1 (i)∎ to know sb by sight/by reputation connaître qn de vue/de réputation;∎ we've known each other for years ça fait des années que nous nous connaissons;∎ I don't know him to speak to je ne le connais pas assez pour lui parler;∎ I know him to say hello to nous nous saluons;∎ when I first knew her quand j'ai fait sa connaissance;∎ knowing him, he'll still be in bed tel que je le connais, il sera encore au lit;∎ you'll like her once you get to know her better elle vous plaira une fois que vous la connaîtrez mieux;∎ I'd like to get to know him better j'aimerais bien le connaître mieux∎ I know Budapest well je connais bien Budapest(c) (fact, information)∎ do you know her phone number? vous connaissez son numéro de téléphone?;∎ it'll be easier once you get to know the system ce sera plus facile une fois que tu te seras familiarisé avec le système;∎ civilization as we know it la civilisation telle que nous la connaissons;∎ how was I to know she wouldn't come? comment aurais-je pu savoir ou deviner qu'elle ne viendrait pas?;∎ I know for a fact that he's lying je sais pertinemment qu'il ment;∎ she is known to be a keen photographer on sait qu'elle aime beaucoup la photographie;∎ he let it be known that he was available il a fait savoir qu'il était disponible;∎ I don't know that it's the best solution je ne suis pas certain ou sûr que ce soit la meilleure solution;∎ you don't know or you'll never know how glad I am that it's over tu ne peux pas savoir combien ou à quel point je suis content que ce soit terminé;∎ she thinks she knows all the answers elle croit tout savoir;∎ she didn't quite know what to say elle ne savait trop que dire;∎ I know what I'm talking about je sais de quoi je parle;∎ I'll let you know how it turns out je te dirai comment ça s'est passé;∎ any problems, let me know au moindre problème, n'hésitez pas;∎ do you know anything about him that could help us? est-ce que vous savez quelque chose à son sujet qui pourrait nous aider?;∎ do you know anything about physics? est-ce que tu connais quelque chose en physique?;∎ she knows a lot about politics elle s'y connaît en politique;∎ she doesn't know what fear is elle ne sait pas ce que c'est que d'avoir peur;∎ there's no knowing how he'll react on ne peut pas savoir comment il réagira;∎ familiar she knows a thing or two about business elle s'y connaît en affaires□ ;∎ she knows her own mind elle sait ce qu'elle veut;∎ familiar it's not an easy job - don't I know it! ce n'est pas un travail facile - à qui le dis-tu!;∎ familiar wouldn't you know it! comme par hasard!;∎ you know what I mean tu vois ce que je veux dire;∎ familiar he was just sort of lying there, know what I mean? il était allongé là, tu vois;∎ familiar well, what do you know! ça alors!, ça par exemple!;∎ what do YOU know? qu'est-ce que tu en sais?;∎ very familiar you know what you can do with it! tu sais où tu peux te le mettre!;∎ familiar God or Heaven knows why! Dieu sait pourquoi!(d) (language, skill)∎ he knows French il comprend le français;∎ I know a few words of Welsh je connais quelques mots de gallois;∎ she really knows her job/subject elle connaît son boulot/sujet;∎ to know how to do sth savoir faire qch;∎ does he know how to cook? sait-il cuisiner?;∎ they knew how to make cars in those days! en ce temps-là, les voitures, c'était du solide!(e) (recognize) reconnaître;∎ I knew her the moment I saw her je l'ai reconnue dès que je l'ai vue;∎ I'd know him anywhere je le reconnaîtrais n'importe où;∎ I knew her by her walk je l'ai reconnue à son allure ou à sa démarche;∎ the town centre has changed so much you wouldn't know it le centre-ville a tellement changé que vous auriez du mal à le reconnaître;∎ she knows a bargain when she sees one elle sait reconnaître une bonne affaire;∎ he wouldn't know a good novel if it hit him il est tout à fait incapable de reconnaître un bon roman(f) (distinguish) distinguer, discerner;∎ she doesn't know right from wrong elle ne sait pas discerner le bien du mal ou faire la différence entre le bien et le mal;∎ familiar he doesn't know one end of a car from another il n'y connaît absolument rien en voitures□(g) (experience) connaître;∎ I've known poverty/failure j'ai connu la pauvreté/l'échec;∎ I've never known anything like it je n'ai jamais rien vu de semblable;∎ I have never known him tell a lie à ce que je sache, il n'a jamais menti;∎ I've never known him (to) be this late je ne l'ai jamais vu être aussi en retard;∎ it has been known (to happen) c'est une chose qu'on a vue se produire, ça s'est vu;∎ such coincidences have been known de telles coïncidences se sont déjà vues(h) (nickname, call)∎ Ian White, known as "Chalky" Ian White, connu sous le nom de "Chalky";∎ they're known as June bugs in America on les appelle des "June bugs" en Amérique∎ she's known as one of our finest singers elle est considérée comme l'une de nos meilleures chanteusessavoir;∎ who knows? qui sait?;∎ familiar I wouldn't know je ne saurais dire□ ;∎ I don't want to know je ne veux pas le savoir;∎ when I mentioned that he just didn't want to know quand j'ai mentionné ça, il n'a rien voulu savoir;∎ you never know on ne sait jamais;∎ he might or should have known better ce n'était pas très sage de sa part;∎ he's old enough to know better à son âge, il devrait être plus raisonnable;∎ you can't blame him, he doesn't know any better on ne peut pas lui en vouloir, il ne se rend pas compte;∎ he always thinks he knows best il croit toujours avoir raison;∎ Mother knows best maman sait de quoi elle parle;∎ to know about sth être au courant de qch;∎ I've known about it for a week je le sais ou je suis au courant depuis une semaine;∎ do you know about the new arrangements? est-ce que vous êtes au courant ou avez-vous entendu parler des nouvelles dispositions?;∎ he knows about cars il s'y connaît en voitures;∎ I don't know about that (I'm not certain) je n'en suis pas sûr;∎ I don't know about you, but I'm exhausted toi, je ne sais pas, mais moi, je suis épuisé;∎ to know of sb/sth avoir entendu parler de qn/qch;∎ do you know her? - well, I know of her est-ce que tu la connais? - non, mais j'ai entendu parler d'elle;∎ do you know of a good bookshop? vous connaissez une bonne librairie?;∎ not that I know (of) pas que je sache;∎ have they got much money? - not that I know of ont-ils beaucoup d'argent? - pas que je sache;∎ it's just so difficult - oh, I know c'est tellement difficile - oh, je sais;∎ it's difficult, I know, but not impossible c'est difficile, je sais, mais pas impossible;∎ what's his name? - I don't know comment s'appelle-t-il? - je ne sais pas;∎ are you going to accept? - I don't know tu vas accepter? - je ne sais pas3 noun∎ to be in the know être au courant□(pour) autant que je sache;∎ not as far as I know pas que je sache;∎ as far as I know, he lives in London autant que je sache, il vit à Londres∎ I was right, you know j'avais raison, tu sais∎ he was just, you know, a bit boring il était juste un peu ennuyeux, si tu vois ce que je veux dire∎ it was that blonde woman, you know, the one with the dog c'était la femme blonde, tu sais, celle avec le chien∎ you know, sometimes I wonder why I do this tu sais, parfois je me demande pourquoi je fais ça -
19 Fizeau, Armand Hippolyte Louis
SUBJECT AREA: Photography, film and optics[br]b. 23 September 1819 Paris, Franced. 18 September 1896 Nanteuil-le-Haudouin, France[br]French physicist who introduced early improvements to the daguerreotype process.[br]Fizeau's interest in photography was comparatively brief, but during this period he was at the forefront of French attempts to explore and exploit the potential of the recently announced daguerreotype process (see Daguerre). Fizeau is best remembered for his introduction in August 1840 of the practice of gold-toning daguerreotypes. This improvement not only helped protect the delicate surface of the plate from abrasion and tarnishing, but also enhanced the quality of the image. The technique was not patented and was immediately adopted by all daguerreotypists. Between 1839 and 1841, in association with Alfred Donné, Fizeau conducted experiments with the aim of converting daguerreotypes into printing plates. Prints from two of his plates were published in 1842, but the technique was never widely practised. In association with J.B.Léon Foucault, Fizeau discovered the reciprocity failure of daguerreotypes, and the same partnership produced what were probably the first daguerreotypes of the sun. Fizeau is best known in physics for making the first accurate determination of the speed of light, in 1849.[br]Further ReadingW.H.Thornthwaite, 1843, Photographic Manipulation, London (provides details of Fizeau's gold-toning process).H.Gernsheim and A.Gernsheim, 1969, The History of Photography, rev. edn, London (a more general account of Fizeau's contributions to photography).JWBiographical history of technology > Fizeau, Armand Hippolyte Louis
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20 Swan, Sir Joseph Wilson
[br]b. 31 October 1828 Sunderland, Englandd. 27 May 1914 Warlingham, Surrey, England[br]English chemist, inventor in Britain of the incandescent electric lamp and of photographic processes.[br]At the age of 14 Swan was apprenticed to a Sunderland firm of druggists, later joining John Mawson who had opened a pharmacy in Newcastle. While in Sunderland Swan attended lectures at the Athenaeum, at one of which W.E. Staite exhibited electric-arc and incandescent lighting. The impression made on Swan prompted him to conduct experiments that led to his demonstration of a practical working lamp in 1879. As early as 1848 he was experimenting with carbon as a lamp filament, and by 1869 he had mounted a strip of carbon in a vessel exhausted of air as completely as was then possible; however, because of residual air, the filament quickly failed.Discouraged by the cost of current from primary batteries and the difficulty of achieving a good vacuum, Swan began to devote much of his attention to photography. With Mawson's support the pharmacy was expanded to include a photographic business. Swan's interest in making permanent photographic records led him to patent the carbon process in 1864 and he discovered how to make a sensitive dry plate in place of the inconvenient wet collodian process hitherto in use. He followed this success with the invention of bromide paper, the subject of a British patent in 1879.Swan resumed his interest in electric lighting. Sprengel's invention of the mercury pump in 1865 provided Swan with the means of obtaining the high vacuum he needed to produce a satisfactory lamp. Swan adopted a technique which was to become an essential feature in vacuum physics: continuing to heat the filament during the exhaustion process allowed the removal of absorbed gases. The inventions of Gramme, Siemens and Brush provided the source of electrical power at reasonable cost needed to make the incandescent lamp of practical service. Swan exhibited his lamp at a meeting in December 1878 of the Newcastle Chemical Society and again the following year before an audience of 700 at the Newcastle Literary and Philosophical Society. Swan's failure to patent his invention immediately was a tactical error as in November 1879 Edison was granted a British patent for his original lamp, which, however, did not go into production. Parchmentized thread was used in Swan's first commercial lamps, a material soon superseded by the regenerated cellulose filament that he developed. The cellulose filament was made by extruding a solution of nitro-cellulose in acetic acid through a die under pressure into a coagulating fluid, and was used until the ultimate obsolescence of the carbon-filament lamp. Regenerated cellulose became the first synthetic fibre, the further development and exploitation of which he left to others, the patent rights for the process being sold to Courtaulds.Swan also devised a modification of Planté's secondary battery in which the active material was compressed into a cellular lead plate. This has remained the central principle of all improvements in secondary cells, greatly increasing the storage capacity for a given weight.[br]Principal Honours and DistinctionsKnighted 1904. FRS 1894. President, Institution of Electrical Engineers 1898. First President, Faraday Society 1904. Royal Society Hughes Medal 1904. Chevalier de la Légion d'Honneur 1881.Bibliography2 January 1880, British patent no. 18 (incandescent electric lamp).24 May 1881, British patent no. 2,272 (improved plates for the Planté cell).1898, "The rise and progress of the electrochemical industries", Journal of the Institution of Electrical Engineers 27:8–33 (Swan's Presidential Address to the Institution of Electrical Engineers).Further ReadingM.E.Swan and K.R.Swan, 1968, Sir Joseph Wilson Swan F.R.S., Newcastle upon Tyne (a detailed account).R.C.Chirnside, 1979, "Sir Joseph Swan and the invention of the electric lamp", IEEElectronics and Power 25:96–100 (a short, authoritative biography).GWBiographical history of technology > Swan, Sir Joseph Wilson
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