-
1 Cambridge Information Technology
Trademark term: CITУниверсальный русско-английский словарь > Cambridge Information Technology
-
2 (Cambridge) / Conversational Monitor System
Универсальный русско-английский словарь > (Cambridge) / Conversational Monitor System
-
3 Cambridge Cybernetic Society
Information technology: CCS (organization)Универсальный русско-английский словарь > Cambridge Cybernetic Society
-
4 Cambridge Model Distributed System
Универсальный русско-английский словарь > Cambridge Model Distributed System
-
5 Cambridge Multiple Access System
Универсальный русско-английский словарь > Cambridge Multiple Access System
-
6 Cambridge ring
கேம்பிரிட்ஜ் வளையம் -
7 CIT
1) Общая лексика: (counsellor in training) практикант-вожатый (в детском или молодежном лагере), certification, inspection and testing2) Компьютерная техника: Cobol Intermediate Temporary, Computer Information Technology, communications and information technology3) Авиация: Compressor Internal Temperature (Температура внутри компрессора ГТД - показатель его работы)4) Американизм: Center for Information Technology5) Военный термин: command interface test, configuration identification tables, counterintelligence team6) Техника: Central Independent Television, call in time, conductivity indicator transmitter, corporate investigation team, critical incident technique7) Религия: Christians In Training8) Железнодорожный термин: International Rail Transport Committee (фр.)9) Юридический термин: Crisis Intervention Team10) Экономика: подоходный налог корпорации (Corporate Income Tax)11) Сокращение: California Institute of Technology, Carnegie Institute of Technology, Center for Innovative Technology (USA), Central Institute of Technology, Circumstellar Imaging Telescope, Coherent Integration Time, Combined Interrogator-Transponder, Compressor Inlet Temperature, Case Institute of Technology (part of CWRU, Cleveland, OH)12) Университет: Center For Innovative Teaching, Center For Innovative Thinking, Center For Instructional Technologies, College Of Information Technology13) Физиология: Collagen Induction Therapy14) Вычислительная техника: communication and information technology, Circumstellar Imaging Telescope (Space)15) Транспорт: Certifications In Transit16) Воздухоплавание: Cranfield Institute of Technology (UK)17) Фирменный знак: Cambridge Information Technology, Compagnia Italiana Turismo, Cornell Information Technologies18) Налоги: налог на доходы юридических лиц (corporate income tax), (Corporate Income Tax) КПН (корпоративный подоходный налог)19) Образование: Campers In Transition20) Сетевые технологии: communication and information, computer-integrated telephony21) Военно-воздушные силы: Тренажёр истребителя-перехватчика с подвижной кабиной (Controller Interceptor Trainer)22) Нефть и газ: (casing imaging tool) Сканер по определению состояния обсадной колонны23) Электротехника: coolant in temperature24) Фармация: Continuous Integrated Testing25) Должность: Camper In Training, Campus Instructional Technologist, Coach In Training, Coot In Training, Counselor In Training26) NYSE. CIT Group, Inc. (now FDD)27) Международная торговля: Court of International Trade -
8 cit
1) Общая лексика: (counsellor in training) практикант-вожатый (в детском или молодежном лагере), certification, inspection and testing2) Компьютерная техника: Cobol Intermediate Temporary, Computer Information Technology, communications and information technology3) Авиация: Compressor Internal Temperature (Температура внутри компрессора ГТД - показатель его работы)4) Американизм: Center for Information Technology5) Военный термин: command interface test, configuration identification tables, counterintelligence team6) Техника: Central Independent Television, call in time, conductivity indicator transmitter, corporate investigation team, critical incident technique7) Религия: Christians In Training8) Железнодорожный термин: International Rail Transport Committee (фр.)9) Юридический термин: Crisis Intervention Team10) Экономика: подоходный налог корпорации (Corporate Income Tax)11) Сокращение: California Institute of Technology, Carnegie Institute of Technology, Center for Innovative Technology (USA), Central Institute of Technology, Circumstellar Imaging Telescope, Coherent Integration Time, Combined Interrogator-Transponder, Compressor Inlet Temperature, Case Institute of Technology (part of CWRU, Cleveland, OH)12) Университет: Center For Innovative Teaching, Center For Innovative Thinking, Center For Instructional Technologies, College Of Information Technology13) Физиология: Collagen Induction Therapy14) Вычислительная техника: communication and information technology, Circumstellar Imaging Telescope (Space)15) Транспорт: Certifications In Transit16) Воздухоплавание: Cranfield Institute of Technology (UK)17) Фирменный знак: Cambridge Information Technology, Compagnia Italiana Turismo, Cornell Information Technologies18) Налоги: налог на доходы юридических лиц (corporate income tax), (Corporate Income Tax) КПН (корпоративный подоходный налог)19) Образование: Campers In Transition20) Сетевые технологии: communication and information, computer-integrated telephony21) Военно-воздушные силы: Тренажёр истребителя-перехватчика с подвижной кабиной (Controller Interceptor Trainer)22) Нефть и газ: (casing imaging tool) Сканер по определению состояния обсадной колонны23) Электротехника: coolant in temperature24) Фармация: Continuous Integrated Testing25) Должность: Camper In Training, Campus Instructional Technologist, Coach In Training, Coot In Training, Counselor In Training26) NYSE. CIT Group, Inc. (now FDD)27) Международная торговля: Court of International Trade -
9 кембриджская система
Information technology: Cambridge systemУниверсальный русско-английский словарь > кембриджская система
-
10 кембриджское кольцо
Information technology: Cambridge ring (тип высокоскоростной локальной сети)Универсальный русско-английский словарь > кембриджское кольцо
-
11 / Conversational Monitor System
Универсальный русско-английский словарь > / Conversational Monitor System
-
12 Forrester, Jay Wright
SUBJECT AREA: Electronics and information technology[br]b. 14 July 1918 Anselmo, Nebraska, USA[br]American electrical engineer and management expert who invented the magnetic-core random access memory used in most early digital computers.[br]Born on a cattle ranch, Forrester obtained a BSc in electrical engineering at the University of Nebraska in 1939 and his MSc at the Massachusetts Institute of Technology (MIT) in Cambridge, Massachusetts, where he remained to teach and carry out research. Becoming interested in computing, he established the Digital Computer Laboratory at MIT in 1945 and became involved in the construction of Whirlwind I, an early general-purpose computer completed in March 1951 and used for flight-simulation by the US Army Air Force. Finding the linear memories then available for storing data a major limiting factor in the speed at which computers were able to operate, he developed a three-dimensional store based on the binary switching of the state of small magnetic cores that could be addressed and switched by a matrix of wires carrying pulses of current. The machine used parallel synchronous fixed-point computing, with fifteen binary digits and a plus sign, i.e. 16 bits in all, and contained 5,000 vacuum tubes, eleven semiconductors and a 2 MHz clock for the arithmetic logic unit. It occupied a two-storey building and consumed 150kW of electricity. From his experience with the development and use of computers, he came to realize their great potential for the simulation and modelling of real situations and hence for the solution of a variety of management problems, using data communications and the technique now known as interactive graphics. His later career was therefore in this field, first at the MIT Lincoln Laboratory in Lexington, Massachusetts (1951) and subsequently (from 1956) as Professor at the Sloan School of Management at the Massachusetts Institute of Technology.[br]Principal Honours and DistinctionsNational Academy of Engineering 1967. George Washington University Inventor of the Year 1968. Danish Academy of Science Valdemar Poulsen Gold Medal 1969. Systems, Man and Cybernetics Society Award for Outstanding Accomplishments 1972. Computer Society Pioneer Award 1972. Institution of Electrical Engineers Medal of Honour 1972. National Inventors Hall of Fame 1979. Magnetics Society Information Storage Award 1988. Honorary DEng Nebraska 1954, Newark College of Engineering 1971, Notre Dame University 1974. Honorary DSc Boston 1969, Union College 1973. Honorary DPolSci Mannheim University, Germany. Honorary DHumLett, State University of New York 1988.Bibliography1951, "Data storage in three dimensions using magnetic cores", Journal of Applied Physics 20: 44 (his first description of the core store).Publications on management include: 1961, Industrial Dynamics, Cambridge, Mass.: MIT Press; 1968, Principles of Systems, 1971, Urban Dynamics, 1980, with A.A.Legasto \& J.M.Lyneis, System Dynamics, North Holland. 1975, Collected Papers, Cambridge, Mass.: MIT.Further ReadingK.C.Redmond \& T.M.Smith, Project Whirlwind, the History of a Pioneer Computer (provides details of the Whirlwind computer).H.H.Goldstine, 1993, The Computer from Pascal to von Neumann, Princeton University Press (for more general background to the development of computers).Serrell et al., 1962, "Evolution of computing machines", Proceedings of the Institute ofRadio Engineers 1,047.M.R.Williams, 1975, History of Computing Technology, London: Prentice-Hall.See also: Burks, Arthur Walter; Goldstine, Herman H.; Wilkes, Maurice Vincent; Williams, Sir Frederic CallandKF -
13 Wilkes, Maurice Vincent
SUBJECT AREA: Electronics and information technology[br]b. 26 June 1913 Stourbridge, Worcestershire, England[br]English physicist who was jointly responsible for the construction of the EDS AC computer.[br]Educated at King Edward VI Grammar School, Stourbridge, where he began to make radio sets and read Wireless World, Wilkes went to St John's College, Cambridge, in 1931, graduating as a Wrangler in the Mathematical Tripos in 1934. He then carried out research at the Cavendish Laboratory, becoming a demonstrator in 1937. During the Second World War he worked on radar, differential analysers and operational research at the Bawdsey Research Station and other air-defence establishments. In 1945 he returned to Cambridge as a lecturer and as Acting Director of the Mathematical (later Computer) Laboratory, serving as Director from 1946 to 1970.During the late 1940s, following visits to the USA for computer courses and to see the ENIAC computer, with the collaboration of colleagues he constructed the Cambridge University digital computer EDSAC (for Electronic Delay Storage Automatic Computer), using ultrasonic delay lines for data storage. In the mid-1950s a second machine, EDSAC2, was constructed using a magnetic-core memory. In 1965 he became Professor of Computer Technology. After retirement he worked for the Digital Electronic Corporation (DEC) from 1981 to 1986, serving also as Adjunct Professor of Computer Science and Electrical Engineering at the Massachusetts Institute of Technology from 1981 to 1985. In 1990 he became a research strategy consultant to the Olivetti Research Directorate.[br]Principal Honours and DistinctionsFRS 1956. First President, British Computer Society 1957–60. Honorary DSc Munich 1978, Bath 1987. Honorary DTech Linkoping 1975. FEng 1976. Institution of Electrical Engineers Faraday Medal 1981.Bibliography1948, "The design of a practical high-speed computing machine", Proceedings of the Royal Society A195:274 (describes EDSAC).1949, Oscillation of the Earth's Atmosphere.1951, Preparation of Programs for an Electronic Digital Computer, New York: Addison-Wesley.1956, Automatic Digital Computers, London: Methuen. 1966, A Short Introduction to Numerical Analysis.1968, Time-Sharing Computer Systems: McDonald \& Jane's.1979, The Cambridge CAP Computer and its Operating System: H.Holland.1985, Memoirs of a Computer Pioneer, Cambridge, Mass.: MIT Press (autobiography).Further ReadingB.Randell (ed.), 1973, The Origins of Digital Computers, Berlin: Springer-Verlag.KFBiographical history of technology > Wilkes, Maurice Vincent
-
14 Strachey, Christopher
SUBJECT AREA: Electronics and information technology[br]b. 16 November 1916 Englandd. 18 May 1975 Oxford, England[br]English physicist and computer engineer who proposed time-sharing as a more efficient means of using a mainframe computer.[br]After education at Gresham's School, London, Strachey went to King's College, Cambridge, where he completed an MA. In 1937 he took up a post as a physicist at the Standard Telephone and Cable Company, then during the Second World War he was involved in radar research. In 1944 he became an assistant master at St Edmunds School, Canterbury, moving to Harrow School in 1948. Another change of career in 1951 saw him working as a Technical Officer with the National Research and Development Corporation, where he was involved in computer software and hardware design. From 1958 until 1962 he was an independent consultant in computer design, and during this time (1959) he realized that as mainframe computers were by then much faster than their human operators, their efficiency could be significantly increased by "time-sharing" the tasks of several operators in rapid succession. Strachey made many contributions to computer technology, being variously involved in the design of the Manchester University MkI, Elliot and Ferranti Pegasus computers. In 1962 he joined Cambridge University Mathematics Laboratory as a senior research fellow at Churchill College and helped to develop the programming language CPL. After a brief period as Visiting Lecturer at the Massachusetts Institute of Technology, he returned to the UK in 1966 as Reader in Computation and Fellow of Wolfeon College, Oxford, to establish a programming research group. He remained there until his death.[br]Principal Honours and DistinctionsDistinguished Fellow of the British Computer Society 1972.Bibliography1961, with M.R.Wilkes, "Some proposals for improving the efficiency of Algol 60", Communications of the ACM 4:488.1966, "Systems analysis and programming", Scientific American 25:112. 1976, with R.E.Milne, A Theory of Programming Language Semantics.Further ReadingJ.Alton, 1980, Catalogue of the Papers of C. Strachey 1916–1975.M.Campbell-Kelly, 1985, "Christopher Strachey 1916–1975. A biographical note", Annals of the History of Computing 7:19.M.R.Williams, 1985, A History of Computing Technology, London: Prentice-Hall.KF -
15 Williams, Sir Frederic Calland
SUBJECT AREA: Electronics and information technology[br]b. 26 June 1911 Stockport, Cheshire, Englandd. 11 August 1977 Prestbury, Cheshire, England[br]English electrical engineer who invented the Williams storage cathode ray tube, which was extensively used worldwide as a data memory in the first digital computers.[br]Following education at Stockport Grammar School, Williams entered Manchester University in 1929, gaining his BSc in 1932 and MSc in 1933. After a short time as a college apprentice with Metropolitan Vickers, he went to Magdalen College, Oxford, to study for a DPhil, which he was awarded in 1936. He returned to Manchester University that year as an assistant lecturer, gaining his DSc in 1939. Following the outbreak of the Second World War he worked for the Scientific Civil Service, initially at the Bawdsey Research Station and then at the Telecommunications Research Establishment at Malvern, Worcestershire. There he was involved in research on non-incandescent amplifiers and diode rectifiers and the development of the first practical radar system capable of identifying friendly aircraft. Later in the war, he devised an automatic radar system suitable for use by fighter aircraft.After the war he resumed his academic career at Manchester, becoming Professor of Electrical Engineering and Director of the University Electrotechnical Laboratory in 1946. In the same year he succeeded in developing a data-memory device based on the cathode ray tube, in which the information was stored and read by electron-beam scanning of a charge-retaining target. The Williams storage tube, as it became known, not only found obvious later use as a means of storing single-frame, still television images but proved to be a vital component of the pioneering Manchester University MkI digital computer. Because it enabled both data and program instructions to be stored in the computer, it was soon used worldwide in the development of the early stored-program computers.[br]Principal Honours and DistinctionsKnighted 1976. OBE 1945. CBE 1961. FRS 1950. Hon. DSc Durham 1964, Sussex 1971, Wales 1971. First Royal Society of Arts Benjamin Franklin Medal 1957. City of Philadelphia John Scott Award 1960. Royal Society Hughes Medal 1963. Institution of Electrical Engineers Faraday Medal 1972. Institute of Electrical and Electronics Engineers Pioneer Award 1973.BibliographyWilliams contributed papers to many scientific journals, including Proceedings of the Royal Society, Proceedings of the Cambridge Philosophical Society, Journal of the Institution of Electrical Engineers, Proceedings of the Institution of Mechanical Engineers, Wireless Engineer, Post Office Electrical Engineers' Journal. Note especially: 1948, with J.Kilburn, "Electronic digital computers", Nature 162:487; 1949, with J.Kilburn, "A storage system for use with binary digital computing machines", Proceedings of the Institution of Electrical Engineers 96:81; 1975, "Early computers at Manchester University", Radio \& Electronic Engineer 45:327. Williams also collaborated in the writing of vols 19 and 20 of the MIT RadiationLaboratory Series.Further ReadingB.Randell, 1973, The Origins of Digital Computers, Berlin: Springer-Verlag. M.R.Williams, 1985, A History of Computing Technology, London: Prentice-Hall. See also: Stibitz, George R.; Strachey, Christopher.KFBiographical history of technology > Williams, Sir Frederic Calland
-
16 Babbage, Charles
SUBJECT AREA: Electronics and information technology[br]b. 26 December 1791 Walworth, Surrey, Englandd. 18 October 1871 London, England[br]English mathematician who invented the forerunner of the modern computer.[br]Charles Babbage was the son of a banker, Benjamin Babbage, and was a sickly child who had a rather haphazard education at private schools near Exeter and later at Enfield. Even as a child, he was inordinately fond of algebra, which he taught himself. He was conversant with several advanced mathematical texts, so by the time he entered Trinity College, Cambridge, in 1811, he was ahead of his tutors. In his third year he moved to Peterhouse, whence he graduated in 1814, taking his MA in 1817. He first contributed to the Philosophical Transactions of the Royal Society in 1815, and was elected a fellow of that body in 1816. He was one of the founders of the Astronomical Society in 1820 and served in high office in it.While he was still at Cambridge, in 1812, he had the first idea of calculating numerical tables by machinery. This was his first difference engine, which worked on the principle of repeatedly adding a common difference. He built a small model of an engine working on this principle between 1820 and 1822, and in July of the latter year he read an enthusiastically received note about it to the Astronomical Society. The following year he was awarded the Society's first gold medal. He submitted details of his invention to Sir Humphry Davy, President of the Royal Society; the Society reported favourably and the Government became interested, and following a meeting with the Chancellor of the Exchequer Babbage was awarded a grant of £1,500. Work proceeded and was carried on for four years under the direction of Joseph Clement.In 1827 Babbage went abroad for a year on medical advice. There he studied foreign workshops and factories, and in 1832 he published his observations in On the Economy of Machinery and Manufactures. While abroad, he received the news that he had been appointed Lucasian Professor of Mathematics at Cambridge University. He held the Chair until 1839, although he neither resided in College nor gave any lectures. For this he was paid between £80 and £90 a year! Differences arose between Babbage and Clement. Manufacture was moved from Clement's works in Lambeth, London, to new, fireproof buildings specially erected by the Government near Babbage's house in Dorset Square, London. Clement made a large claim for compensation and, when it was refused, withdrew his workers as well as all the special tools he had made up for the job. No work was possible for the next fifteen months, during which Babbage conceived the idea of his "analytical engine". He approached the Government with this, but it was not until eight years later, in 1842, that he received the reply that the expense was considered too great for further backing and that the Government was abandoning the project. This was in spite of the demonstration and perfectly satisfactory operation of a small section of the analytical engine at the International Exhibition of 1862. It is said that the demands made on manufacture in the production of his engines had an appreciable influence in improving the standard of machine tools, whilst similar benefits accrued from his development of a system of notation for the movements of machine elements. His opposition to street organ-grinders was a notable eccentricity; he estimated that a quarter of his mental effort was wasted by the effect of noise on his concentration.[br]Principal Honours and DistinctionsFRS 1816. Astronomical Society Gold Medal 1823.BibliographyBabbage wrote eighty works, including: 1864, Passages from the Life of a Philosopher.July 1822, Letter to Sir Humphry Davy, PRS, on the Application of Machinery to the purpose of calculating and printing Mathematical Tables.Further Reading1961, Charles Babbage and His Calculating Engines: Selected Writings by Charles Babbage and Others, eds Philip and Emily Morrison, New York: Dover Publications.IMcN -
17 Action for Children's Television
Универсальный русско-английский словарь > Action for Children's Television
-
18 percorso
"path;Vorfunkenstrecke;Strecke;percurso"* * *1. past part vedere percorrere2. m ( tragitto) routeinformation technology pathname, path* * *percorso s.m.1 run; ( distanza) distance: su un percorso di venti miglia, in (a distance of) twenty miles; il percorso tra Londra e Cambridge è breve, it is a quick run (o a short distance) from London to Cambridge; scelsero il percorso più breve, they chose the shortest way2 ( tragitto) way, journey: ci fermammo durante il percorso, we stopped on the way; durante il percorso ci accorgemmo di aver sbagliato strada, on our way we suddenly realized we had taken the wrong turning3 ( tracciato) course, route: il percorso di un fiume, delle stelle, the course of a river, of the stars; il percorso di un treno, the route of a train; la folla era radunata lungo il percorso della maratona, the crowd had gathered along the marathon route // percorso obbligato, set course // (mil.) percorso di guerra, assault course4 (inform.) path: percorso di scheda, card path; percorso di nastro, tape path; percorso di un ciclo, transversal; percorso dei cavi, cable through.* * *[per'korso] percorso (-a)1. ppSee:2. sm* * *[per'korso]sostantivo maschile1) (tragitto) way; (di fiume, gara) course; (di mezzi di trasporto, autostrada) route2) (carriera) careerpercorso politico, professionale — political, professional career
3) inform. path•percorso di guerra — mil. assault o obstacle course
percorso obbligato — (in gara) set course; (strada obbligatoria) set route
* * *percorso/per'korso/sostantivo m.1 (tragitto) way; (di fiume, gara) course; (di mezzi di trasporto, autostrada) route; scegliere il percorso più breve to choose the shortest way; coprire un percorso in due ore to cover a distance in two hours2 (carriera) career; percorso politico, professionale political, professional career3 inform. pathpercorso di guerra mil. assault o obstacle course; percorso obbligato (in gara) set course; (strada obbligatoria) set route. -
19 Hopkinson, John
[br]b. 27 July 1849 Manchester, Englandd. 27 August 1898 Petite Dent de Veisivi, Switzerland[br]English mathematician and electrical engineer who laid the foundations of electrical machine design.[br]After attending Owens College, Manchester, Hopkinson was admitted to Trinity College, Cambridge, in 1867 to read for the Mathematical Tripos. An appointment in 1872 with the lighthouse department of the Chance Optical Works in Birmingham directed his attention to electrical engineering. His most noteworthy contribution to lighthouse engineering was an optical system to produce flashing lights that distinguished between individual beacons. His extensive researches on the dielectric properties of glass were recognized when he was elected to a Fellowship of the Royal Society at the age of 29. Moving to London in 1877 he became established as a consulting engineer at a time when electricity supply was about to begin on a commercial scale. During the remainder of his life, Hopkinson's researches resulted in fundamental contributions to electrical engineering practice, dynamo design and alternating current machine theory. In making a critical study of the Edison dynamo he developed the principle of the magnetic circuit, a concept also arrived at by Gisbert Kapp around the same time. Hopkinson's improvement of the Edison dynamo by reducing the length of the field magnets almost doubled its output. In 1890, in addition to-his consulting practice, Hopkinson accepted a post as the first Professor of Electrical Engineering and Head of the Siemens laboratory recently established at King's College, London. Although he was not involved in lecturing, the position gave him the necessary facilities and staff and student assistance to continue his researches. Hopkinson was consulted on many proposals for electric traction and electricity supply, including schemes in London, Manchester, Liverpool and Leeds. He also advised Mather and Platt when they were acting as contractors for the locomotives and generating plant for the City and South London tube railway. As early as 1882 he considered that an ideal method of charging for the supply of electricity should be based on a two-part tariff, with a charge related to maximum demand together with a charge for energy supplied. Hopkinson was one the foremost expert witnesses of his day in patent actions and was himself the patentee of over forty inventions, of which the three-wire system of distribution and the series-parallel connection of traction motors were his most successful. Jointly with his brother Edward, John Hopkinson communicated the outcome of his investigations to the Royal Society in a paper entitled "Dynamo Electric Machinery" in 1886. In this he also described the later widely used "back to back" test for determining the characteristics of two identical machines. His interest in electrical machines led him to more fundamental research on magnetic materials, including the phenomenon of recalescence and the disappearance of magnetism at a well-defined temperature. For his work on the magnetic properties of iron, in 1890 he was awarded the Royal Society Royal Medal. He was a member of the Alpine Club and a pioneer of rock climbing in Britain; he died, together with three of his children, in a climbing accident.[br]Principal Honours and DistinctionsFRS 1878. Royal Society Royal Medal 1890. President, Institution of Electrical Engineers 1890 and 1896.Bibliography7 July 1881, British patent no. 2,989 (series-parallel control of traction motors). 27 July 1882, British patent no. 3,576 (three-wire distribution).1901, Original Papers by the Late J.Hopkinson, with a Memoir, ed. B.Hopkinson, 2 vols, Cambridge.Further ReadingJ.Greig, 1970, John Hopkinson Electrical Engineer, London: Science Museum and HMSO (an authoritative account).—1950, "John Hopkinson 1849–1898", Engineering 169:34–7, 62–4.GW -
20 Jansky, Karl Guthe
[br]b. 22 October 1905 Norman, Oklahoma, USAd. 14 February 1950 Red Bank, New Jersey, USA[br]American radio engineer who discovered stellar radio emission.[br]Following graduation from the University of Wisconsin in 1928 and a year of postgraduate study, Jansky joined Bell Telephone Laboratories in New Jersey with the task of establishing the source of interference to telephone communications by radio. To this end he constructed a linear-directional short-wave antenna and eventually, in 1931, he concluded that the interference actually came from the stars, the major source being the constellation Sagittarius in the direction of the centre of the Milky Way. Although he continued to study the propagation of short radio waves and the nature of observed echoes, it was left to others to develop the science of radioastronomy and to use the creation of echoes for radiolocation. Although he received no scientific award for his discovery, Jansky's name is primarily honoured by its use as the unit of stellar radio-emission strength.[br]Bibliography1935, "Directional studies of atmospherics at high frequencies", Proceedings of the Institute of Radio Engineers 23:1,158.1935, "A note on the sources of stellar interference", Proceedings of the Institute of RadioEngineers.1937, "Minimum noise levels obtained on short-wave radio receiving systems", Proceedings of the Institute of Radio Engineers 25:1,517.1941, "Measurements of the delay and direction of arrival of echoes from nearby short-wave transmitters", Proceedings of the Institute of Radio Engineers 29:322.Further ReadingP.C.Mahon, 1975, BellLabs, Mission Communication. The Story of the Bell Labs.W.I.Sullivan (ed.), 1984, The Early Years of Radio-Astronomy: Reflections 50 Years after Jansky's Discovery, Cambridge: Cambridge University Press.See also: Appleton, Sir Edward VictorKF
- 1
- 2
См. также в других словарях:
Information technology — (IT) is the acquisition, processing, storage and dissemination of vocal, pictorial, textual and numerical information by a microelectronics based combination of computing and telecommunications.[1] The term in its modern sense first appeared in a … Wikipedia
Al Gore and information technology — Al Gore is the former Vice President of the United States (1993–2001), the 2000 Democratic Party presidential nominee, and the co winner of the 2007 Nobel Peace Prize. He has been involved with the development of the Internet since the… … Wikipedia
International Institute of Information Technology - Bangalore — Infobox University name = International Institute of Information Technology, Bangalore established = 1999 type = Deemed University, Education and Research, Private city = Electronics City, Bangalore state = Karnataka country = India motto =… … Wikipedia
Coimbatore Institute of Engineering and Information Technology — The Coimbatore Institute of Engineering and Information Technology (CIET) was established in 2001 by the Kovai Kalaimagal Educational Trust (KKET), Coimbatore, Tamil Nadu, India.Now the name of institution is changed to Coimbatore Institute of… … Wikipedia
International Business Information Technology — (IBIT) ist ein Studiengang an der Dualen Hochschule Baden Württemberg am Standort Mannheim (ehemals Berufsakademie Mannheim). Er stützt sich auf eine internationale Ausbildung im Bereich der Wirtschaftsinformatik und betrieblicher… … Deutsch Wikipedia
Cambridge IT Skills Diploma — IT Skills Diploma is a certificate that is based on the Microsoft Office software, this certificate assesses a range of the most important IT skills required and is available at two levels: Foundation and Standard. Exam methodology These Online… … Wikipedia
Information art — (or informatism ) is an emerging field of electronic art that synthesizes computer science, information technology, and more classical forms of art, including performance art, visual art, new media art and conceptual art. [Edward A. Shanken has… … Wikipedia
Technology Dynamics — is broad and relatively new scientific field that has been developed in the framework of the postwar Science and Technology Studies field. It studies the process of technological change. Under the field of Technology Dynamics the process of… … Wikipedia
Cambridge Solutions — is a leading Business Process Outsourcing (BPO) provider in the information technology industry. [ [http://wrightreports.ecnext.com/coms2/reportdesc COMPANY C3562WA00 Cambridge Solutions Limited Company Profile Snapshot] ] Cambridge Solutions U.S … Wikipedia
Information society — For other uses, see Information society (disambiguation). The aim of the information society is to gain competitive advantage internationally through using IT in a creative and productive way. An information society is a society in which the… … Wikipedia
Technology — By the mid 20th century, humans had achieved a mastery of technology sufficient to leave the atmosphere of the Earth for the first time and explore space. Technology … Wikipedia