-
1 long-lines engineering
1) Телекоммуникации: разработка линий дальней связи2) Электроника: техника дальней связи3) Макаров: техника линий передачиУниверсальный англо-русский словарь > long-lines engineering
-
2 long-lines engineering
English-Russian electronics dictionary > long-lines engineering
-
3 long-lines engineering
The New English-Russian Dictionary of Radio-electronics > long-lines engineering
-
4 long-lines engineering
English-Russian dictionary of telecommunications and their abbreviations > long-lines engineering
-
5 long-lines engineering
English-Russian dictionary of electronics > long-lines engineering
-
6 engineering
1) техника; технология; инженерия2) проектирование; разработка; конструирование•- circuitry engineering
- circuits engineering
- communication engineering
- computer engineering
- computer-aided engineering
- computer-aided software engineering
- control engineering
- cryogenic engineering
- data engineering
- display system engineering
- domain engineering
- electricalengineering
- electronic engineering
- genetic engineering
- human engineering
- human factor engineering
- IC engineering
- installation engineering - logistic engineering
- long-lines engineering
- mask-making engineering
- optical engineering
- photomask-making engineering - production engineering
- quantum radio engineering
- radio engineering
- reliability engineering
- requirements engineering
- research engineering
- reverse engineering
- safety engineering
- service engineering
- social engineering
- software engineering
- systems engineering
- television engineering
- usability engineering -
7 engineering
1) техника; технология; инженерия2) проектирование; разработка; конструирование•- basic IC engineering
- circuitry engineering
- circuits engineering
- communication engineering
- computer engineering
- computer-aided engineering
- computer-aided software engineering
- control engineering
- cryogenic engineering
- data engineering
- display system engineering
- domain engineering
- electrical engineering
- electronic engineering
- genetic engineering
- human engineering
- human factor engineering
- IC engineering
- installation engineering
- integrated computer-aided software engineering
- knowledge engineering
- logistic engineering
- long-lines engineering
- mask-making engineering
- optical engineering
- photomask-making engineering
- plastic package engineering
- process control engineering
- production engineering
- quantum radio engineering
- radio engineering
- reliability engineering
- requirements engineering
- research engineering
- reverse engineering
- safety engineering
- service engineering
- social engineering
- software engineering
- systems engineering
- television engineering
- usability engineeringThe New English-Russian Dictionary of Radio-electronics > engineering
-
8 engineering
1) разработка; конструирование2) техника3) технология•- display system engineering
- electronic engineering
- long-lines engineering
- network engineering
- radio engineeringEnglish-Russian dictionary of telecommunications and their abbreviations > engineering
-
9 agency
агентство; управление; учреждение; орган; организационная единица; средствоArmament agency, DA — Бр. главное управление вооружений СВ
Armed Forces [Services] Technical Information agency — управление военно-технической информации ВС
Army Logistics Doctrine, Systems and Readiness agency — управление разработки принципов деятельности, наставлений и руководств службы тыла СВ
cue target acquisition agencies (on) — ориентировать органы разведки целей (на определенные объекты)
Defense Communications agency, Europe — Европейский отдел управления связи МО
Intelligence Research agency, State Department — управление анализа разведывательной информации госдепартамента
Nuclear Munitions agency, JCS — управление ядерных боеприпасов КНШ
Organization-Mobilization (AG) agency, DA — Бр. главное организационно-мобилизационное управление СВ
Studies, Analysis and Gaming agency — управление специальных исследований, анализа и проигрыша различных вариантов войны (КНШ)
Surveillance, Target Acquisition and Night Observation Systems agency — НИЦ систем наблюдения, обнаружения целей и ночного видения
— C agency -
10 line
line [laɪn]━━━━━━━━━━━━━━━━━1. noun3. compounds━━━━━━━━━━━━━━━━━1. nounb. ( = boundary) frontière fc. ( = wrinkle) ride ff. (for phone) ligne f• Mr Smith is on the line j'ai M. Smith en ligne• to learn one's lines [actor] apprendre son textei. ( = row) [of trees, parked cars, hills] rangée f ; [of cars in traffic jam] file f ; [of people] (side by side) rang m ; (one behind another) file f ; ( = assembly line) chaîne f• to fall into line with sb ( = conform) se ranger à l'avis de qnk. ( = route) ligne fl. ( = track) voie f• they voted against the government line ils ont voté contre la position adoptée par le gouvernement• to take a strong line on... se montrer ferme sur...• you must be very aware of that in your line of business vous devez en être très conscient dans votre métier• what's your line of business? que faites-vous dans la vie ?p. ( = product) this lager is the shop's best selling line cette bière blonde est ce qui se vend le mieuxq. ( = course) in the line of duty dans l'exercice de ses (or mes etc) fonctionss. (in battle) ligne f• didn't I tell you that all along the line? c'est ce que je n'ai pas arrêté de te dire• somewhere along the line he got an engineering degree je ne sais pas exactement quand, il a décroché son diplôme d'ingénieur► along... lines• along political/racial lines selon des critères politiques/raciaux► in line• if the Prime Minister fails to keep the rebels in line si le Premier ministre ne réussit pas à maîtriser les éléments rebelles• our system is broadly in line with that of other countries notre système correspond plus ou moins à celui des autres pays► into line• to come on line [power station, machine] entrer en service► on the line ( = at stake) (inf) en jeuhe was completely out of line to suggest that... ( = unreasonable) il n'aurait vraiment pas dû suggérer que...• he is out of line with his party ( = in conflict) il est en décalage par rapport à son parti• their debts are completely out of line with their incomes leur endettement est tout à fait disproportionné par rapport à leurs revenusa. ( = mark) [+ face] marquer3. compounds• to keep the lines of communication open with sb ne pas rompre le dialogue avec qn ► line of fire noun ligne f de tir► line-up noun [of people] file f ; ( = identity parade) séance f d'identification (d'un suspect) ; (Football) composition f de l'équipe f► line upa. ( = stand in row) se mettre en rang(s) ; ( = stand in queue) faire la queueb. ( = align o.s.) to line up against sb/sth se liguer contre qn/qch• most senators lined up in support of the president la plupart des sénateurs ont soutenu le présidenta. [+ people, objects] alignerb. ( = find) (inf)• we must line up a chairman for the meeting il faut que nous trouvions un président pour la réunion• have you got something lined up for this evening? est-ce que tu as prévu quelque chose pour ce soir ?• have you got someone lined up? avez-vous quelqu'un en vue ?* * *[laɪn] 1.1) gen, Sport ligne f; (shorter, thicker) trait m; Art trait ma straight/curved line — une ligne droite/courbe
the line AB — ( in geometry) la droite AB
2) (of people, cars) file f; ( of trees) rangée fin straight lines — [plant, arrange] en lignes droites
to be in line — [buildings] être dans l'alignement
3) fig4) ( queue) file fto stand in ou wait in line — faire la queue
to form a line — [people] faire la queue
5) ( on face) ride f6) Architecture ( outline shape) ligne f (of de)7) ( boundary) frontière fthere's a fine line between knowledge and pedantry — de la culture à la pédanterie il n'y a qu'un pas
8) ( rope) corde f; ( for fishing) ligne f9) ( cable) Electricity ligne f (électrique)10) Telecommunications ( connection) ligne fto get off the line — (colloq) raccrocher
11) ( rail route) ligne f ( between entre); ( rails) voie f; (shipping company, airline) compagnie f12) ( in genealogy) lignée fa line from — une citation de [poem etc]
to learn one's lines — Theatre apprendre son texte
14) ( conformity)to bring regional laws into line with federal laws — harmoniser les lois régionales et les lois fédérales
our prices are out of line with those of our competitors — nos prix ne s'accordent pas avec ceux de nos concurrents
you're way out of line! — (colloq) franchement, tu exagères!
15) (colloq) ( piece of information)16) ( stance)17) ( type of product) gamme f18) Militaryenemy lines — lignes fpl ennemies
19) ( equator)20) (colloq) ( of cocaine) ligne (colloq) f (of de)2.in line with prepositional phrase en accord avec [policy, trend]3.transitive verb doubler [garment] ( with avec); tapisser [box, shelf] ( with de); [spectators] border [route]Phrasal Verbs:- line up••all along the line —
somewhere along the line — ( at point in time) à un certain moment; ( at stage) quelque part
-
11 data
данные, сведения; показатели
* * *
1. данные; информация; сведения2. характеристика; характеристики; измеренные величины; показания приборов3. результаты; материалы ( ис питаний)
* * *
информация; данные, факты, сведения
* * *
1) данные; информация; сведения2) характеристика; характеристики; измеренные величины; показания приборов3) результаты; материалы ( испытаний)•- analog waveform data
- arrival-time data
- borehole data
- caliper data
- common-depth point data
- comprehensive seismic-noise data
- compressional-wave data
- constant angle data
- core data
- cross-borehole data
- crosshole data
- crosswell data
- crude oil data
- debugging data
- defect data
- defective data
- demultiplexed data
- design data
- diagnostic data
- discrepancy data
- duty-cycle data
- engineering data
- external data
- failure data
- failure-analysis data
- failure-and-success data
- failure-experience data
- failure rate data
- fatigue data
- fault data
- field data
- field-collected data
- field-development data
- field-failure data
- field-performance data
- field-test data
- geodetic data
- geological-and-engineering data
- geophysical logging data
- go-no-go data
- high-density data
- high-fold seismic data
- inspection data
- life-test data
- liquid-gas ratio data
- log data
- logging data
- long-life operating data
- long-period data
- lot acceptance data
- magnetotelluric data
- maintainability data
- maintenance data
- marine seismic data
- mean life data
- mechanical data
- migrated near-offset data
- multicoveraged data
- multifold data
- network data
- noise data
- operating life data
- operational data
- overburden data
- performance data
- performance test data
- point-source data
- postcritical data
- precritical data
- preliminary test data
- pretest data
- production data
- reflection data
- refraction data
- reliability data
- reliability test data
- removal data
- reservoir engineering data
- resistivity-sounding data
- search data
- seismic data
- seismological data
- service data
- shear-wave data
- shooting data
- short-period data
- single-coverage data
- soil boring data
- sonic-log data
- sounding data
- state-of-health data
- stress rupture data
- test data
- time-depth data
- time-distance data
- time-to-failure data
- travel time data
- trouble-shooting data
- uphole-survey data
- uphole-time data
- usage data
- velocity-survey data
- vibrator data
- Vibroseis data
- warranty data
- welding data
- well data
- well-log data
- well-logging data
- well-velocity data
- working data
- zero-offset data* * * -
12 service
1) служба
2) выслуга
3) заправить
4) заправлять
5) обслуживание
6) обслуживать
7) услуги
8) ухаживать
9) служебный
10) эксплуатировать
11) эксплуатационный
– air medical service
– air meteorological service
– availability for service
– behavior in service
– cable service
– continuity of service
– cycle service
– emergency service
– floating service
– go out of service
– high-speed service
– immediate service
– long-distance service
– long-term service
– lower-echelon service
– mastering service
– no hangup service
– no-hang-up service
– no-hangup service
– public service
– quality of service
– radiotelephone service
– repair service
– rerouting service
– restoration of service
– restore service
– running service
– rural service
– secret service
– service abbreviation
– service area
– service band
– service bunker
– service cable
– service call
– service capacity
– service center
– service code
– service condition
– service conditions
– service distortion
– service drop
– service duct
– service entrance
– service floor
– service gate
– service ground
– service insulator
– service interruption
– service irregularity
– service life
– service lines
– service observation
– service order
– service out
– service property
– service request
– service room
– service shop
– service station
– service tank
– service tests
– service tower
– service well
– short-term service
– special service
– take out of service
civil meteorolgical service — <meteor.> служба метеорологическая гражданская
control tower service — <aeron.> служба диспетчерская
fault complaint service — бюро повреждений, бюро ремонта
manufacturing messaging service — служба передачи сообщений в производстве
message toll service — междугородняя служба передачи сообщений
message tool service — международная служба передачи сообщений
primary service area — зона увереннего приема радиовещательного передатчика
regional engineering-technolgical service — <engin.> служба инженерно-технологическая районная
station service transformer — <engin.> трансформатор собственных нужд
-
13 operation
операция; кампания; боевые [военные] действия; бой; сражение; эксплуатация; обслуживание; работа; pl. оперативное управление [отдел, отделение]; см. тж. action, battle, combatcounter C3 operation — операция [действия] против систем руководства, управления и связи [оперативного управления и связи]
counternaval forces naval operation (in closed or open offshore areas) — морская операция по разгрому ВМС противника (в закрытых или прилегающих к побережью открытых морских районах)
— breaching operation— exploitation-type operation— guarding security operations— missile operations— tactical operations— urban ized operations* * * -
14 Stephenson, George
[br]b. 9 June 1781 Wylam, Northumberland, Englandd. 12 August 1848 Tapton House, Chesterfield, England[br]English engineer, "the father of railways".[br]George Stephenson was the son of the fireman of the pumping engine at Wylam colliery, and horses drew wagons of coal along the wooden rails of the Wylam wagonway past the house in which he was born and spent his earliest childhood. While still a child he worked as a cowherd, but soon moved to working at coal pits. At 17 years of age he showed sufficient mechanical talent to be placed in charge of a new pumping engine, and had already achieved a job more responsible than that of his father. Despite his position he was still illiterate, although he subsequently learned to read and write. He was largely self-educated.In 1801 he was appointed Brakesman of the winding engine at Black Callerton pit, with responsibility for lowering the miners safely to their work. Then, about two years later, he became Brakesman of a new winding engine erected by Robert Hawthorn at Willington Quay on the Tyne. Returning collier brigs discharged ballast into wagons and the engine drew the wagons up an inclined plane to the top of "Ballast Hill" for their contents to be tipped; this was one of the earliest applications of steam power to transport, other than experimentally.In 1804 Stephenson moved to West Moor pit, Killingworth, again as Brakesman. In 1811 he demonstrated his mechanical skill by successfully modifying a new and unsatisfactory atmospheric engine, a task that had defeated the efforts of others, to enable it to pump a drowned pit clear of water. The following year he was appointed Enginewright at Killingworth, in charge of the machinery in all the collieries of the "Grand Allies", the prominent coal-owning families of Wortley, Liddell and Bowes, with authorization also to work for others. He built many stationary engines and he closely examined locomotives of John Blenkinsop's type on the Kenton \& Coxlodge wagonway, as well as those of William Hedley at Wylam.It was in 1813 that Sir Thomas Liddell requested George Stephenson to build a steam locomotive for the Killingworth wagonway: Blucher made its first trial run on 25 July 1814 and was based on Blenkinsop's locomotives, although it lacked their rack-and-pinion drive. George Stephenson is credited with building the first locomotive both to run on edge rails and be driven by adhesion, an arrangement that has been the conventional one ever since. Yet Blucher was far from perfect and over the next few years, while other engineers ignored the steam locomotive, Stephenson built a succession of them, each an improvement on the last.During this period many lives were lost in coalmines from explosions of gas ignited by miners' lamps. By observation and experiment (sometimes at great personal risk) Stephenson invented a satisfactory safety lamp, working independently of the noted scientist Sir Humphry Davy who also invented such a lamp around the same time.In 1817 George Stephenson designed his first locomotive for an outside customer, the Kilmarnock \& Troon Railway, and in 1819 he laid out the Hetton Colliery Railway in County Durham, for which his brother Robert was Resident Engineer. This was the first railway to be worked entirely without animal traction: it used inclined planes with stationary engines, self-acting inclined planes powered by gravity, and locomotives.On 19 April 1821 Stephenson was introduced to Edward Pease, one of the main promoters of the Stockton \& Darlington Railway (S \& DR), which by coincidence received its Act of Parliament the same day. George Stephenson carried out a further survey, to improve the proposed line, and in this he was assisted by his 18-year-old son, Robert Stephenson, whom he had ensured received the theoretical education which he himself lacked. It is doubtful whether either could have succeeded without the other; together they were to make the steam railway practicable.At George Stephenson's instance, much of the S \& DR was laid with wrought-iron rails recently developed by John Birkinshaw at Bedlington Ironworks, Morpeth. These were longer than cast-iron rails and were not brittle: they made a track well suited for locomotives. In June 1823 George and Robert Stephenson, with other partners, founded a firm in Newcastle upon Tyne to build locomotives and rolling stock and to do general engineering work: after its Managing Partner, the firm was called Robert Stephenson \& Co.In 1824 the promoters of the Liverpool \& Manchester Railway (L \& MR) invited George Stephenson to resurvey their proposed line in order to reduce opposition to it. William James, a wealthy land agent who had become a visionary protagonist of a national railway network and had seen Stephenson's locomotives at Killingworth, had promoted the L \& MR with some merchants of Liverpool and had carried out the first survey; however, he overreached himself in business and, shortly after the invitation to Stephenson, became bankrupt. In his own survey, however, George Stephenson lacked the assistance of his son Robert, who had left for South America, and he delegated much of the detailed work to incompetent assistants. During a devastating Parliamentary examination in the spring of 1825, much of his survey was shown to be seriously inaccurate and the L \& MR's application for an Act of Parliament was refused. The railway's promoters discharged Stephenson and had their line surveyed yet again, by C.B. Vignoles.The Stockton \& Darlington Railway was, however, triumphantly opened in the presence of vast crowds in September 1825, with Stephenson himself driving the locomotive Locomotion, which had been built at Robert Stephenson \& Co.'s Newcastle works. Once the railway was at work, horse-drawn and gravity-powered traffic shared the line with locomotives: in 1828 Stephenson invented the horse dandy, a wagon at the back of a train in which a horse could travel over the gravity-operated stretches, instead of trotting behind.Meanwhile, in May 1826, the Liverpool \& Manchester Railway had successfully obtained its Act of Parliament. Stephenson was appointed Engineer in June, and since he and Vignoles proved incompatible the latter left early in 1827. The railway was built by Stephenson and his staff, using direct labour. A considerable controversy arose c. 1828 over the motive power to be used: the traffic anticipated was too great for horses, but the performance of the reciprocal system of cable haulage developed by Benjamin Thompson appeared in many respects superior to that of contemporary locomotives. The company instituted a prize competition for a better locomotive and the Rainhill Trials were held in October 1829.Robert Stephenson had been working on improved locomotive designs since his return from America in 1827, but it was the L \& MR's Treasurer, Henry Booth, who suggested the multi-tubular boiler to George Stephenson. This was incorporated into a locomotive built by Robert Stephenson for the trials: Rocket was entered by the three men in partnership. The other principal entrants were Novelty, entered by John Braithwaite and John Ericsson, and Sans Pareil, entered by Timothy Hackworth, but only Rocket, driven by George Stephenson, met all the organizers' demands; indeed, it far surpassed them and demonstrated the practicability of the long-distance steam railway. With the opening of the Liverpool \& Manchester Railway in 1830, the age of railways began.Stephenson was active in many aspects. He advised on the construction of the Belgian State Railway, of which the Brussels-Malines section, opened in 1835, was the first all-steam railway on the European continent. In England, proposals to link the L \& MR with the Midlands had culminated in an Act of Parliament for the Grand Junction Railway in 1833: this was to run from Warrington, which was already linked to the L \& MR, to Birmingham. George Stephenson had been in charge of the surveys, and for the railway's construction he and J.U. Rastrick were initially Principal Engineers, with Stephenson's former pupil Joseph Locke under them; by 1835 both Stephenson and Rastrick had withdrawn and Locke was Engineer-in-Chief. Stephenson remained much in demand elsewhere: he was particularly associated with the construction of the North Midland Railway (Derby to Leeds) and related lines. He was active in many other places and carried out, for instance, preliminary surveys for the Chester \& Holyhead and Newcastle \& Berwick Railways, which were important links in the lines of communication between London and, respectively, Dublin and Edinburgh.He eventually retired to Tapton House, Chesterfield, overlooking the North Midland. A man who was self-made (with great success) against colossal odds, he was ever reluctant, regrettably, to give others their due credit, although in retirement, immensely wealthy and full of honour, he was still able to mingle with people of all ranks.[br]Principal Honours and DistinctionsPresident, Institution of Mechanical Engineers, on its formation in 1847. Order of Leopold (Belgium) 1835. Stephenson refused both a knighthood and Fellowship of the Royal Society.Bibliography1815, jointly with Ralph Dodd, British patent no. 3,887 (locomotive drive by connecting rods directly to the wheels).1817, jointly with William Losh, British patent no. 4,067 (steam springs for locomotives, and improvements to track).Further ReadingL.T.C.Rolt, 1960, George and Robert Stephenson, Longman (the best modern biography; includes a bibliography).S.Smiles, 1874, The Lives of George and Robert Stephenson, rev. edn, London (although sycophantic, this is probably the best nineteenthcentury biography).PJGR -
15 Thévénin, Léon Charles
SUBJECT AREA: Electricity[br]b. 30 March 1857 Paris, Franced. 21 September 1926 Paris, France[br]French telegraph engineer who extended Ohm's Law to the analysis of complex electrical circuits.[br]Following a basic education, Thévénin entered the Ecole Polytechnique in Paris, graduating in 1876. In 1878 he joined the Corps of Telegraph Engineers (which subsequently became the French PTT). There he initially worked on the development of long-distance underground telegraph lines, but he later switched to working on power lines. Appointed a teaching inspector at the Ecole Supérieure in 1882, he became increasingly interested in the problems of measurement in electrical circuits. As a result of studying Kirchoff's Laws, which were essentially derived from Ohm's Law, he developed his now-famous theorem which made it possible to calculate the currents in more complex electrical circuits.As well as becoming Head of the Bureau des Lignes, up until his death he also found time for teaching other subjects outside the Ecole, including a course in mechanics at the Institut National Agronomique. In 1896 he was appointed Director of the Telegraph Engineering School, then, in 1901, Engineer-in-Chief of the telegraph workshops. He retired in 1914.[br]Bibliography1883, "Extension of Ohm's Law to complex electrical circuits", Comptes rendus 97:159 (describes Thévénin's Theorem).Further ReadingF.E.Terman, 1943, Radio Engineers'Handbook, New York: McGraw-Hill, Section 3 (summarizes the relevant circuit theory).KF -
16 Parsons, Sir Charles Algernon
[br]b. 13 June 1854 London, Englandd. 11 February 1931 on board Duchess of Richmond, Kingston, Jamaica[br]English eingineer, inventor of the steam turbine and developer of the high-speed electric generator.[br]The youngest son of the Earl of Rosse, he came from a family well known in scientific circles, the six boys growing up in an intellectual atmosphere at Birr Castle, the ancestral home in Ireland, where a forge and large workshop were available to them. Charles, like his brothers, did not go to school but was educated by private tutors of the character of Sir Robert Ball, this type of education being interspersed with overseas holiday trips to France, Holland, Belgium and Spain in the family yacht. In 1871, at the age of 17, he went to Trinity College, Dublin, and after two years he went on to St John's College, Cambridge. This was before the Engineering School had opened, and Parsons studied mechanics and mathematics.In 1877 he was apprenticed to W.G.Armstrong \& Co. of Elswick, where he stayed for four years, developing an epicycloidal engine that he had designed while at Cambridge. He then moved to Kitson \& Co. of Leeds, where he went half shares in a small experimental shop working on rocket propulsion for torpedoes.In 1887 he married Katherine Bethell, who contracted rheumatic fever from early-morning outdoor vigils with her husband to watch his torpedo experiments while on their honeymoon! He then moved to a partnership in Clarke, Chapman \& Co. at Gateshead. There he joined the electrical department, initially working on the development of a small, steam-driven marine lighting set. This involved the development of either a low-speed dynamo, for direct coupling to a reciprocating engine, or a high-speed engine, and it was this requirement that started Parsons on the track of the steam turbine. This entailed many problems such as the running of shafts at speeds of up to 40,000 rpm and the design of a DC generator for 18,000 rpm. He took out patents for both the turbine and the generator on 23 April 1884. In 1888 he dissolved his partnership with Clarke, Chapman \& Co. to set up his own firm in Newcastle, leaving his patents with the company's owners. This denied him the use of the axial-flow turbine, so Parsons then designed a radial-flow layout; he later bought back his patents from Clarke, Chapman \& Co. His original patent had included the use of the steam turbine as a means of marine propulsion, and Parsons now set about realizing this possibility. He experimented with 2 ft (61 cm) and 6 ft (183 cm) long models, towed with a fishing line or, later, driven by a twisted rubber cord, through a single-reduction set of spiral gearing.The first trials of the Turbinia took place in 1894 but were disappointing due to cavitation, a little-understood phenomenon at the time. He used an axial-flow turbine of 2,000 shp running at 2,000 rpm. His work resulted in a far greater understanding of the phenomenon of cavitation than had hitherto existed. Land turbines of up to 350 kW (470 hp) had meanwhile been built. Experiments with the Turbinia culminated in a demonstration which took place at the great Naval Review of 1897 at Spithead, held to celebrate Queen Victoria's Diamond Jubilee. Here, the little Turbinia darted in and out of the lines of heavy warships and destroyers, attaining the unheard of speed of 34.5 knots. The following year the Admiralty placed their first order for a turbine-driven ship, and passenger vessels started operation soon after, the first in 1901. By 1906 the Admiralty had moved over to use turbines exclusively. These early turbines had almost all been direct-coupled to the ship's propeller shaft. For optimum performance of both turbine and propeller, Parsons realized that some form of reduction gearing was necessary, which would have to be extremely accurate because of the speeds involved. Parsons's Creep Mechanism of 1912 ensured that any errors in the master wheel would be distributed evenly around the wheel being cut.Parsons was also involved in optical work and had a controlling interest in the firm of Ross Ltd of London and, later, in Sir Howard Grubb \& Sons. He he was an enlightened employer, originating share schemes and other benefits for his employees.[br]Principal Honours and DistinctionsKnighted. Order of Merit 1927.Further ReadingA.T.Bowden, 1966, "Charles Parsons: Purveyor of power", in E.G.Semler (ed.), The Great Masters. Engineering Heritage, Vol. II, London: Institution of Mechanical Engineers/Heinemann.IMcNBiographical history of technology > Parsons, Sir Charles Algernon
-
17 Blumlein, Alan Dower
SUBJECT AREA: Aerospace, Broadcasting, Electronics and information technology, Photography, film and optics, Recording, Telecommunications[br]b. 29 June 1903 Hampstead, London, Englandd. 7 June 1942[br]English electronics engineer, developer of telephone equipment, highly linear electromechanical recording and reproduction equipment, stereo techniques, video and radar technology.[br]He was a very bright scholar and received a BSc in electrical technology from City and Guilds College in 1923. He joined International Western Electric (later to become Standard Telephone and Cables) in 1924 after a period as an instructor/demonstrator at City and Guilds. He was instrumental in the design of telephone measuring equipment and in international committee work for standards for long-distance telephony.From 1929 Blumlein was employed by the Columbia Graphophone Company to develop an electric recording cutterhead that would be independent of Western Electric's patents for the system developed by Maxfield and Harrison. He attacked the problems in a most systematic fashion, and within a year he had developed a moving-coil cutterhead that was much more linear than the iron-cored systems known at the time. Eventually Blumlein designed a complete line of recording equipment, from microphone and through-power amplifiers. The design was used by Columbia; after the merger with the Gramophone Company in 1931 to form Electrical and Musical Industries Ltd (later known as EMI) it became the company standard, certainly for coarse-groove records, until c.1950.Blumlein became interested in stereophony (binaural sound), and developed and demonstrated a complete line of equipment, from correctly placed microphones via two-channel records and stereo pick-ups to correctly placed loudspeakers. The advent of silent surfaces of vinyl records made this approach commercial from the late 1950s. His approach was independent and quite different from that of A.C. Keller.His extreme facility for creating innovative solutions to electronic problems was used in EMI's development from 1934 to 1938 of the electronic television system, which became the BBC standard of 405 lines after the Second World War, when television broadcasting again became possible. Independent of official requirements, EMI developed a 60 MHz radar system and Blumlein was involved in the development of a centimetric radar and display system. It was during testing of this aircraft mounted equipment that he was killed in a crash.[br]BibliographyBlumlein was inventor or co-inventor of well over 120 patents, a complete list of which is to be found in Burns (1992; see below). The major sound-recording achievements are documented by British patent nos. 350,954, 350,998, 363,627 (highly linear cutterhead, 1930) and 394,325 (reads like a textbook on stereo technology, 1931).Further ReadingThe definitive biography of Blumlein has not yet been written; the material seems to have been collected, but is not yet available. However, R.W.Burns, 1992, "A.D.Blumlein, engineer extraordinary", Engineering Science and Education Journal (February): 19– 33 is a thorough account. Also B.J.Benzimra, 1967, "A.D. Blumlein: an electronics genius", Electronics \& Power (June): 218–24 provides an interesting summary.GB-N -
18 Hertz, Heinrich Rudolph
[br]b. 22 February 1857 Hamburg, Germanyd. 1 January 1894 Bonn, Germany[br]German physicist who was reputedly the first person to transmit and receive radio waves.[br]At the age of 17 Hertz entered the Gelehrtenschule of the Johaneums in Hamburg, but he left the following year to obtain practical experience for a year with a firm of engineers in Frankfurt am Main. He then spent six months at the Dresden Technical High School, followed by year of military service in Berlin. At this point he decided to switch from engineering to physics, and after a year in Munich he studied physics under Helmholtz at the University of Berlin, gaining his PhD with high honours in 1880. From 1883 to 1885 he was a privat-dozent at Kiel, during which time he studied the electromagnetic theory of James Clerk Maxwell. In 1885 he succeeded to the Chair in Physics at Karlsruhe Technical High School. There, in 1887, he constructed a rudimentary transmitter consisting of two 30 cm (12 in.) rods with metal balls separated by a 7.5 mm (0.3 in.) gap at the inner ends and metallic plates at the outer ends, the whole assembly being mounted at the focus of a large parabolic metal mirror and the two rods being connected to an induction coil. At the other side of his laboratory he placed a 70 cm (27½ in.) diameter wire loop with a similar air gap at the focus of a second metal mirror. When the induction coil was made to create a spark across the transmitter air gap, he found that a spark also occurred at the "receiver". By a series of experiments he was not only able to show that the invisible waves travelled in straight lines and were reflected by the parabolic mirrors, but also that the vibrations could be refracted like visible light and had a similar wavelength. By this first transmission and reception of radio waves he thus confirmed the theoretical predictions made by Maxwell some twenty years earlier. It was probably in his experiments with this apparatus in 1887 that Hertz also observed that the voltage at which a spark was able to jump a gap was significantly reduced by the presence of ultraviolet light. This so-called photoelectric effect was subsequently placed on a theoretical basis by Albert Einstein in 1905. In 1889 he became Professor of Physics at the University of Bonn, where he continued to investigate the nature of electric discharges in gases at low pressure until his death after a long and painful illness. In recognition of his measurement of radio and other waves, the international unit of frequency of an oscillatory wave, the cycle per second, is now universally known as the Hertz.[br]Principal Honours and DistinctionsRoyal Society Rumford Medal 1890.BibliographyMuch of Hertz's work, including his 1890 paper "On the fundamental equations of electrodynamics for bodies at rest", is recorded in three collections of his papers which are available in English translations by D.E.Jones et al., namely Electric Waves (1893), Miscellaneous Papers (1896) and Principles of Mechanics (1899).Further ReadingJ.G.O'Hara and W.Pricha, 1987, Hertz and the Maxwellians, London: Peter Peregrinus. J.Hertz, 1977, Heinrich Hertz, Memoirs, Letters and Diaries, San Francisco: San Francisco Press.R.Appleyard, 1930, Pioneers of Electrical Communication.See also: Heaviside, OliverKFBiographical history of technology > Hertz, Heinrich Rudolph
См. также в других словарях:
Engineering Undergraduate Society of the University of British Columbia — Engineering Undergraduate Society (EUS), is the engineering society at the University of British Columbia. It organizes Engineering department events but is perhaps best known for practical jokes (STUdeNT projectS) it has played in the past,… … Wikipedia
Engineering drawing — Technical drawings An engineering drawing, a type of technical drawing, is used to fully and clearly define requirements for engineered items. Engineering drawing (the activity) produces engineering drawings (the documents). More than just the… … Wikipedia
Engineering support — Configuration management is for most of time dealing with the system that is large, complexed, has a long life duration (more than 10 years) and involve more people. The key issues for engineering support are to coordinate the participants and to … Wikipedia
Long Island Motor Parkway — LIMP redirects here. For other uses, see Limp (disambiguation). Long Island Motor Parkway U.S. National Register of Historic Places … Wikipedia
Architecture and Civil Engineering — ▪ 2009 Introduction Architecture For Notable Civil Engineering Projects in work or completed in 2008, see Table (Notable Civil Engineering Projects (in work or completed, 2008)). Beijing was the centre of the world of architecture… … Universalium
systems engineering — ☆ systems engineering n. a branch of engineering using esp. information theory, computer science, and facts from systems analysis studies to design integrated operational systems for specific complexes systems engineer n. * * * Technique of using … Universalium
military engineering — Art and practice of designing and building military works and of building and maintaining lines of military transport and communications. It includes both tactical support (see tactics) on the battlefield, including construction of fortifications … Universalium
Timeline of Islamic science and engineering — This timeline of Islamic science and engineering covers the general development of science and technology in the Islamic world during the Islamic Golden Age, usually dated from the 7th to 16th centuries.From the 17th century onwards, the advances … Wikipedia
Tissue engineering — Principle of tissue engineering Tissue engineering was once categorized as a sub field of bio materials, but having grown in scope and importance it can be considered as a field in its own right. It is the use of a combination of cells,… … Wikipedia
List of Historic Mechanical Engineering Landmarks — The following is a list of Historic Mechanical Engineering Landmarks as designated by the American Society of Mechanical Engineers since it began the program in 1971. The designation is granted to existing artifacts or systems representing a… … Wikipedia
Notable Civil Engineering Projects (in work or completed, 2008) — ▪ Table Notable Civil Engineering Projects (in work or completed, 2008) Name Location Year of completion Notes Airports Terminal area (sq m) Beijing Capital (new Terminal 3) northeast of Beijing 986,000 2008 Opened Feb. 29; is the world s largest … Universalium
