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1 занимать большую площадь
Занимать большую площадь-- In an L-shaped chart the unstable region covers a larger area.Русско-английский научно-технический словарь переводчика > занимать большую площадь
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2 в ... раз меньше, чем
•The anomaly frequency is smaller than... by a factor of 1,000.
•Neutron stars are 1,000,000 times smaller than ordinary stars.
•The rate is one-tenth that for the larger KºL
•Sodium compounds are to be preferred over calcium compounds because the former cost one-sixth as much.
•The cost per electron volt was 10 times less than it was at the SLAC accelerator.
•This momentum would be a factor of 10 short of the momentum needed to explain...
•The field of view of the camera covers an area of the sky about a fifth as large as it does in the wide-field mode.
Русско-английский научно-технический словарь переводчика > в ... раз меньше, чем
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3 в ... раз меньше, чем
•The anomaly frequency is smaller than... by a factor of 1,000.
•Neutron stars are 1,000,000 times smaller than ordinary stars.
•The rate is one-tenth that for the larger KºL
•Sodium compounds are to be preferred over calcium compounds because the former cost one-sixth as much.
•The cost per electron volt was 10 times less than it was at the SLAC accelerator.
•This momentum would be a factor of 10 short of the momentum needed to explain...
•The field of view of the camera covers an area of the sky about a fifth as large as it does in the wide-field mode.
Русско-английский научно-технический словарь переводчика > в ... раз меньше, чем
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4 Laval, Carl Gustaf Patrik de
SUBJECT AREA: Agricultural and food technology, Electricity, Mechanical, pneumatic and hydraulic engineering, Steam and internal combustion engines[br]b. 9 May 1845 Orsa, Swedend. 2 February 1913 Stockholm, Sweden[br]Swedish inventor of an advanced cream separator and a steam turbine.[br]Gustaf de Laval was educated at the Stockholm Technical Institute and Uppsala University. He proved to have an unfailing vigour and variety in his inventive talent, for his interests ranged from electric lighting and electrometallurgy to aerodynamics. In the 1890s he employed over one hundred engineers to develop his inventions, but he was best known for two: the cream separator and a steam turbine. In 1877 he invented the high-speed centrifugal cream separator, which was probably the greatest advance in butter-making up to that time. By 1880 the separators were being successfully marketed all over the world, for they were quickly adopted in larger dairies where they effected enormous savings in labour and space. He followed this with various devices for the dairy industry, including a vacuum milking machine perfected in 1913. In c. 1882, de Laval invented a turbine on the principle of Hero's engine, but he quickly turned his attention to the impulse type, which was like Branca's, with a jet of steam impinging on a set of blades around the periphery of a wheel. He applied for a British patent in 1889. The steam was expanded in a single stage from the initial to the final pressure: to secure economy with the steam issuing at high velocity, the blades also had to rotate at high velocity. An early 5 hp (3.7 kW) turbine rotated at 30,000 rpm, so reduction gearing had to be introduced. Production started in Sweden in 1893 and in other countries at about the same time. In 1892 de Laval proposed employing one of his turbines of 15 hp (11 kW) in an experimental launch, but there is no evidence that it was ever actually installed in a vessel. However, his turbines were popular for powering electric generating sets for lighting textile mills and ships, and by 1900 were available in sizes up to 300 bhp (224 kW).[br]Bibliography1889, British patent no. 7,143 (steam turbine).Further ReadingT.Althin, 1943, Life of de Laval, Stockholm (a full biography).T.I.Williams (ed.), 1969, A Biographical Dictionary of Scientists, London: A. \& C. Black (contains a brief biography).R.M.Neilson, 1902, The Steam Turbine, London: Longmans, Green \& Co. (fully covers the development of de Laval's steam turbine).H.W.Dickinson, 1938, A Short History of the Steam Engine, Cambridge University Press (contains a short account of the development of the steam turbine).R.L.Hills, 1989, Power from Steam. A History of the Stationary Steam Engine, Cambridge University Press (contains a short account).RLHBiographical history of technology > Laval, Carl Gustaf Patrik de
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5 Outram, Benjamin
[br]b. 1 April 1764 Alfreton, Englandd. 22 May 1805 London, England[br]English ironmaster and engineer of canals and tramroads, protagonist of angled plate rails in place of edge rails.[br]Outram's father was one of the principal promoters of the Cromford Canal, Derbyshire, and Benjamin Outram became Assistant to the canal's Engineer, William Jessop. In 1789 Outram was appointed Superintendent in charge of construction, and his responsibilities included the 2,978 yd (2,723 m) Butterley Tunnel; while the tunnel was being driven, coal and iron ore were encountered. Outram and a partner purchased the Butterley Hall estate above the tunnel and formed Outram \& Co. to exploit the coal and iron: a wide length of the tunnel beneath the company's furnace was linked to the surface by shafts to become in effect an underground wharf. Jessop soon joined the company, which grew and prospered to eventually become the long-lived Butterley Company.As a canal engineer, Outram's subsequent projects included the Derby, Huddersfield Narrow and Peak Forest Canals. On the Derby Canal he built a small iron aqueduct, which though designed later than the Longdon Aqueduct of Thomas Telford was opened earlier, in 1796, to become the first iron aqueduct.It is as a tramroad engineer that Outram is best known. In 1793 he completed a mile-long (1.6 km) tramroad from Outram \& Co.'s limestone quarry at Crich to the Cromford Canal, for which he used plate rails of the type recently developed by John Curr. He was, however, able to use a wider gauge—3 ft 6 in. (1.07 m) between the flanges—and larger wagons than Curr had been able to use underground in mines. It appears to have been Outram's idea to mount the rails on stone blocks, rather than wooden sleepers.Outram then engineered tramroads to extend the lines of the Derby and Peak Forest Canals. He encouraged construction of such tramroads in many parts of Britain, often as feeders of traffic to canals. He acted as Engineer, and his company often provided the rails and sometimes undertook the entire construction of a line. Foreseeing that lines would be linked together, he recommended a gauge of 4 ft 2 in. (1.27 m) between the flanges as standard, and for twenty years or so Outram's plateways, with horses or gravity as motive power, became the usual form of construction for new railways. However, experience then showed that edge rails, weight for weight, could carry greater load, and were indeed almost essential for the introduction of steam locomotives.[br]Further ReadingR.B.Schofield, 1986, "The design and construction of the Cromford Canal, 1788–1794", Transactions of the Newcomen Society 57 (provides good coverage of Outram's early career).P.J.Riden, 1973, The Butterley Company and railway construction, 1790–1830', Transport History 6(1) (covers Outram's development of tramroads).R.A.Mott, 1969, Tramroads of the eighteenth century and their originator: John Curr', Transactions of the Newcomen Society 42."Dowie" (A.R.Cowlishaw, J.H.Price and R.G.P. Tebb), 1971, The Crich Mineral Railways, Crich: Tramway Publications.PJGR -
6 Thornley, David
SUBJECT AREA: Textiles[br]b. c. 1741 Liverpool (?), Englandd. 27 January 1772 Nottingham, England[br]English partner in Arkwright's cotton-spinning venture.[br]On 4 November 1766 David Thornley married Mary, daughter of Joseph Brown, roper, at St Peter's, Liverpool. In Gore's Dictionary for 1767 Thornley is described as "merchant" and his wife as "milliner" of Castle Street, Liverpool. David Thornley was distantly related to Richard Arkwright and certainly by 1768 Thornley had begun his active association with Arkwright when he joined him in Preston, an event recorded in the inquiry into the qualifications of those who had voted in the Burgoyne election. Thornley may have helped Arkwright with the technical development of his spinning machine.On 14 May 1768, Arkwright, Smalley and Thornley became partners in the cotton-spinning venture at Nottingham for a term of fourteen years, or longer if a patent could be obtained. Each partner was to have three one-ninth shares and was to advance such money as might be necessary to apply for a patent as well as to develop the spinning machine. Profits were to be divided equally as often as convenient and the partners were to devote their whole time to the business after a period of two years. How-ever, it seems that in 1769 the partners had difficulty in raising the necessary money to finance the patent, and Thornley had to reduce his stake in the partnership to a one-ninth share. By this time Thornley must have moved to Nottingham, where Arkwright established his first mill. On 19 January 1770, additional finance was provided by two new partners, Samuel Need and Jedediah Strutt, and alterations were made to the mill buildings that the partners had leased to work the spinning machines by horse power. Arkwright and Thornley were to be responsible for the day-to-day management of the mill, receiving £25 per annum for these duties. Thornley appears to have remained at Nottingham to supervise the mill, while the other partners moved to Cromford to establish the much larger enterprise there. It was at Nottingham that David Thornley died in January 1772, and his share in the partnership was bought from his wife, Mary, by Arkwright. Mary returned to her millinery business in Liverpool.[br]Further ReadingUntil copies of the original agreements between Arkwright's partners were presented to the University of Manchester Institute of Science and Technology, Thornley's existence was unknown. The only account of his life is given in R.S.Fitton, 1989, The Arkwrights, Spinners of Fortune, Manchester. The "Articles of Agreement", 19 June 1769, are printed in R.L. Hills, 1970, Power in the Industrial Revolution, Manchester. This book also includes part of Arkwright's agreement with his later partners which mentions Thornley's death and covers the technical aspects of the cotton-spinning invention.RLH
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