-
101 return opening
-
102 ventilation opening
English-Russian big polytechnic dictionary > ventilation opening
-
103 sustain
A vtr1 ( maintain) maintenir [interest, mood, growth, success, quality] ; poursuivre [campaign, war, policy] ;2 Mus soutenir, tenir [note] ;5 ( suffer) recevoir [injury, blow, burn] ; éprouver [loss] ; subir, essuyer [defeat] ; to sustain severe damage subir d'importants dégâts ;6 ( bear) supporter [weight] ;7 Jur ( uphold) faire droit à [claim] ; admettre [objection] ; objection sustained! objection accordée! -
104 brand positioning
Mktgthe development of a brand’s position in the market by heightening customer perception of the brand’s superiority over other brands of a similar nature. Brand positioning relies on the identification of a real strength or value that has a clear advantage over the nearest competitor and is easily communicated to the consumer. -
105 employee commitment
HRthe psychological bond of an employee to an organization, the strength of which depends on the degree of employee involvement, employee loyalty, and belief in the values of the organization. Employee commitment was badly damaged in the late 20th century during corporate reorganizations and downsizing, which undermined job security and resulted in fewer promotion opportunities. This led to the renegotiation of the psychological contract and the need to develop strategies for increasing commitment. These included flexible working and work-life balance policies, teamwork, training and development, employee participation, and empowerment. -
106 Baumann, Karl
SUBJECT AREA: Steam and internal combustion engines[br]b. 18 April 1884 Switzerlandd. 14 July 1971 Ilkley, Yorkshire[br]Swiss/British mechanical engineer, designer and developer of steam and gas turbine plant.[br]After leaving school in 1902, he went to the Ecole Polytechnique, Zurich, leaving in 1906 with an engineering diploma. He then spent a year with Professor A.Stodola, working on steam engines, turbines and internal combustion engines. He also conducted research in the strength of materials. After this, he spent two years as Research and Design Engineer at the Nuremberg works of Maschinenfabrik Augsburg-Nürnberg. He came to England in 1909 to join the British Westinghouse Co. Ltd in Manchester, and by 1912 was Chief Engineer of the Engine Department of that firm. The firm later became the Metropolitan-Vickers Electrical Co. Ltd (MV), and Baumann rose from Chief Mechanical Engineer through to, by 1929, Special Director and Member of the Executive Management Board; he remained a director until his retirement in 1949.For much of his career, Baumann was in the forefront of power station steam-cycle development, pioneering increased turbine entry pressures and temperatures, in 1916 introducing multi-stage regenerative feed-water heating and the Baumann turbine multi-exhaust. His 105 MW set for Battersea "A" station (1933) was for many years the largest single-axis unit in Europe. From 1938 on, he and his team were responsible for the first axial-flow aircraft propulsion gas turbines to fly in England, and jet engines in the 1990s owe much to the "Beryl" and "Sapphire" engines produced by MV. In particular, the design of the compressor for the Sapphire engine later became the basis for Rolls-Royce units, after an exchange of information between that company and Armstrong-Siddeley, who had previously taken over the aircraft engine work of MV.Further, the Beryl engine formed the basis of "Gatric", the first marine gas turbine propulsion engine.Baumann was elected to full membership for the Institution of Mechanical Engineers in 1929 and a year later was awarded the Thomas Hawksley Gold Medal by that body, followed by their James Clayton Prize in 1948: in the same year he became the thirty-fifth Thomas Hawksley lecturer. Many of his ideas and introductions have stood the test of time, being based on his deep and wide understanding of fundamentals.JB -
107 Braun, Karl Ferdinand
[br]b. 6 June 1850 Fulda, Hesse, Germanyd. 20 April 1918 New York City, New York, USA[br]German physicist who shared with Marconi the 1909 Nobel Prize for Physics for developments in wireless telegraphy; inventor of the cathode ray oscilloscope.[br]After obtaining degrees from the universities of Marburg and Berlin (PhD) and spending a short time as Headmaster of the Thomas School in Berlin, Braun successively held professorships in theoretical physics at the universities of Marburg (1876), Strasbourg (1880) and Karlsruhe (1883) before becoming Professor of Experimental Physics at Tübingen in 1885 and Director and Professor of Physics at Strasbourg in 1895.During this time he devised experimental apparatus to determine the dielectric constant of rock salt and developed the Braun high-tension electrometer. He also discovered that certain mineral sulphide crystals would only conduct electricity in one direction, a rectification effect that made it possible to detect and demodulate radio signals in a more reliable manner than was possible with the coherer. Primarily, however, he was concerned with improving Marconi's radio transmitter to increase its broadcasting range. By using a transmitter circuit comprising a capacitor and a spark-gap, coupled to an aerial without a spark-gap, he was able to obtain much greater oscillatory currents in the latter, and by tuning the transmitter so that the oscillations occupied only a narrow frequency band he reduced the interference with other transmitters. Other achievements include the development of a directional aerial and the first practical wavemeter, and the measurement in Strasbourg of the strength of radio waves received from the Eiffel Tower transmitter in Paris. For all this work he subsequently shared with Marconi the 1909 Nobel Prize for Physics.Around 1895 he carried out experiments using a torsion balance in order to measure the universal gravitational constant, g, but the work for which he is probably best known is the addition of deflecting plates and a fluorescent screen to the Crooke's tube in 1897 in order to study the characteristics of high-frequency currents. The oscilloscope, as it was called, was not only the basis of a now widely used and highly versatile test instrument but was the forerunner of the cathode ray tube, or CRT, used for the display of radar and television images.At the beginning of the First World War, while in New York to testify in a patent suit, he was trapped by the entry of the USA into the war and remained in Brooklyn with his son until his death.[br]Principal Honours and DistinctionsNobel Prize for Physics (jointly with Marconi) 1909.Bibliography1874, "Assymetrical conduction of certain metal sulphides", Pogg. Annal. 153:556 (provides an account of the discovery of the crystal rectifier).1897, "On a method for the demonstration and study of currents varying with time", Wiedemann's Annalen 60:552 (his description of the cathode ray oscilloscope as a measuring tool).Further ReadingK.Schlesinger \& E.G.Ramberg, 1962, "Beamdeflection and photo-devices", Proceedings of the Institute of Radio Engineers 50, 991.KF -
108 Smith, Oberlin
[br]b. 22 March 1840 Cincinnati, Ohio, USAd. 18 July 1926[br]American mechanical engineer, pioneer in experiments with magnetic recording.[br]Of English descent, Smith embarked on an education in mechanical engineering, graduating from West Jersey Academy, Bridgeton, New Jersey, in 1859. In 1863 he established a machine shop in Bridgeton, New Jersey, that became the Ferracute Machine Company in 1877, eventually specializing in the manufacture of presses for metalworking. He seems to have subscribed to design principles considered modern even in the 1990s, "always giving attention to the development of artistic form in combination with simplicity, and with massive strength where required" (bibliographic reference below). He was successful in his business, and developed and patented a large number of mechanical constructions.Inspired by the advent of the phonograph of Edison, in 1878 Smith obtained the tin-foil mechanical phonograph, analysed its shortcomings and performed some experiments in magnetic recording. He filed a caveat in the US Patent Office in order to be protected while he "reduced the invention to practice". However, he did not follow this trail. When there was renewed interest in practical sound recording and reproduction in 1888 (the constructions of Berliner and Bell \& Tainter), Smith published an account of his experiments in the journal Electrical World. In a corrective letter three weeks later it is clear that he was aware of the physical requirements for the interaction between magnetic coil and magnetic medium, but his publications also indicate that he did not as such obtain reproduction of recorded sound.Smith did not try to develop magnetic recording, but he felt it imperative that he be given credit for conceiving the idea of it. When accounts of Valdemar Poulsen's work were published in 1900, Smith attempted to prove some rights in the invention in the US Patent Office, but to no avail.He was a highly respected member of both his community and engineering societies, and in later life became interested in the anti-slavery cause that had also been close to the heart of his parents, as well as in the YMCA movement and in women's suffrage.[br]BibliographyApart from numerous technical papers, he wrote the book Press Working of Metals, 1896. His accounts on the magnetic recording experiments were "Some possible forms of phonograph", Electrical World (8 September 1888): 161 ff, and "Letter to the Editor", Electrical World (29 September 1888): 179.Further ReadingF.K.Engel, 1990, Documents on the Invention of Magnetic Recording in 1878, New York: Audio Engineering Society, Reprint no. 2,914 (G2) (a good overview of the material collected by the Oberlin Smith Society, Bridgeton, New Jersey, in particular as regards the recording experiments; it is here that it is doubted that Valdemar Poulsen developed his ideas independently).GB-N -
109 Sorocold, George
SUBJECT AREA: Public utilities[br]b. probably Ashton-in-Makerfield, England fl. c. 1685–1715[br]English civil engineer who set up numerous water-driven pumping plants.[br]He began to practise in Derbyshire and South Yorkshire and later moved to London, where his most important work was carried out. Little is known of his birth or, indeed, of the date of his death, although it is thought that he may have been born in Ashton-in- Makerfield.His first known work was a water-driven pumping plant in Derby erected in 1693 to supply water to houses and to points in the town through pipes from the pumps by the river Derwent. These water-driven pumping plants and the delivery of water to various towns were the result of entrepreneurial development by groups of "adventurers". Sorocold went on to set up many more pumping plants, including those at Leeds Bridge (1694–5), Macclesfield, Wirksworth, Yarmouth, Portsmouth, Norwich and King's Lynn.His best-known work was the installation of a pumping plant at the north end of London Bridge to replace a sixteenth-century plant. This consisted of four water-wheels placed between the starlings of the bridge. As the bridge is situated on the tidal Thames, the water-wheels were contrived so that their shafts could be raised or lowered to meet the state of the tidal flow. Whilst the waterworks designed by Sorocold are well known, it is clear that he had come to be regarded as a consulting engineer. One scheme that was carried through was the creation of a navigation between the river Trent and Derby on the line of the river Derwent. He appeared as a witness for the Derwent Navigation Act in 1703. He also held a patent for "A new machine for cutting and sawing all sorts of boards, timber and stone, and twisting all kinds of ropes, cords and cables by the strength of horses of water": this illustrates that his knowledge of power sources was predominant in his practice.[br]Further ReadingR.Jenkins, 1936, "George Sorocold. A chapter in the history of public water supply", The Collected Papers of Rhys Jenkins, Newcomen Society.H.Beighton, 1731, article in The Philosophical Transactions (provides details of the London Bridge Waterworks).KM -
110 Unwin, William Cawthorne
[br]b. 12 December 1838 Coggeshall, near Colchester, Essex, England d. 1933[br]English engineer and educator.[br]Unwin made an important contribution to the establishment of engineering at the University of London. His family were of Huguenot stock, and his father was a Congregational minister. Unwin was educated at the City of London Corporation School and at New College, St John's Wood. At a time when the older universities were still effectively closed to Dissenters, he matriculated with Honours in Chemistry in the London University Matriculation Examination in 1858, and he subsequently graduated BSc from London in 1861. He served as Scientific Assistant to William Fairbairn in Manchester from 1856 to 1862, going on to manage engineering work of various sorts. He was appointed Instructor at the Royal School of Naval Architecture and Marine Engineering (1869–72), and then he became Professor of Hydraulics and Mechanical Engineering at the Royal Indian Engineering College (1872–84). From 1884 to 1904 he was Professor of Civil and Mechanical Engineering at the Central Institution of the City \& Guilds of London, which was incorporated into the University of London in 1900. Unwin's research interests included hydraulics and water power, which led to him taking a leading part in the Niagara Falls hydroelectric scheme; the strength of materials, involving the stability of masonry dams; and the development of the internal combustion engine.[br]Principal Honours and DistinctionsFRS 1886.Further ReadingDNB Supplement.E.G.Walker, 1938, Lift and Work of William Cawthorne Unwin.ABBiographical history of technology > Unwin, William Cawthorne
-
111 Weber, Wilhelm Eduard
SUBJECT AREA: Electricity[br]b. 24 October 1804 Wittenberg, Germanyd. 23 June 1891 Göttingen, Germany[br]German physicist, the founder of precise measurement of electrical quantities.[br]Weber began scientific experiments at an early age and entered the University of Halle, where he came under the influence of J.S.C.Schweigger, inventor of the galvanometer. Completing his education with a dissertation on the theory of organ pipes and making important contributions to the science of acoustics, he was awarded a lectureship and later an assistant professorship at Halle. Weber was offered the Chair of Physics at Göttingen in 1831 and jointly with Gauss began investigations into the precision measurement of magnetic quantities. In 1841 he invented the electrodynamometer type of electrical measuring instrument. This was a development of the galvanometer in which, instead of a needle, a small coil was suspended within an outer coil. A current flowing through both coils tended to turn the inner coil, the sine of the angle through which the suspending wires were twisted being proportional to the square of the strength of the current. A variation of the electrodynamometer was capable of measuring directly the power in electrical circuits.The introduction by Weber of a system of absolute units for the measurement of electrical quantities was a most important step in electrical science. He had a considerable influence on the British Association committees on electrical standards organized in 1861 to promote a coherent system of electrical units. Weber's ideas also led him to define elementary electric particles, ascribing mass and charge to them. His name was used for a time before 1883 as the unit of electric current, until the name "ampere" was proposed by Helmholtz. Since 1948 the term "weber" has been used for the SI unit of magnetic flux.[br]Principal Honours and DistinctionsFRS 1850. Royal Society Copley Medal 1859.Bibliography1892–4, William Weber's Werke, 6 vols, Berlin.Further ReadingP.Lenard, 1954, Great Men of Science, London, pp. 263–70 (a reliable, short biography). C.C.Gillispie (ed.), 1976, Dictionary of Scientific Biography, Vol. XIV, New York, pp.203–9 (discusses his theoretical contributions).S.P.Bordeau, 1982, Volts to Herz, Minneapolis, pp. 172 and 181 (discusses Weber's influence on contemporary scientists).GW -
112 Intelligence
There is no mystery about it: the child who is familiar with books, ideas, conversation-the ways and means of the intellectual life-before he begins school, indeed, before he begins consciously to think, has a marked advantage. He is at home in the House of intellect just as the stableboy is at home among horses, or the child of actors on the stage. (Barzun, 1959, p. 142)It is... no exaggeration to say that sensory-motor intelligence is limited to desiring success or practical adaptation, whereas the function of verbal or conceptual thought is to know and state truth. (Piaget, 1954, p. 359)ntelligence has two parts, which we shall call the epistemological and the heuristic. The epistemological part is the representation of the world in such a form that the solution of problems follows from the facts expressed in the representation. The heuristic part is the mechanism that on the basis of the information solves the problem and decides what to do. (McCarthy & Hayes, 1969, p. 466)Many scientists implicitly assume that, among all animals, the behavior and intelligence of nonhuman primates are most like our own. Nonhuman primates have relatively larger brains and proportionally more neocortex than other species... and it now seems likely that humans, chimpanzees, and gorillas shared a common ancestor as recently as 5 to 7 million years ago.... This assumption about the unique status of primate intelligence is, however, just that: an assumption. The relations between intelligence and measures of brain size is poorly understood, and evolutionary affinity does not always ensure behavioral similarity. Moreover, the view that nonhuman primates are the animals most like ourselves coexists uneasily in our minds with the equally pervasive view that primates differ fundamentally from us because they lack language; lacking language, they also lack many of the capacities necessary for reasoning and abstract thought. (Cheney & Seyfarth, 1990, p. 4)Few constructs are asked to serve as many functions in psychology as is the construct of human intelligence.... Consider four of the main functions addressed in theory and research on intelligence, and how they differ from one another.1. Biological. This type of account looks at biological processes. To qualify as a useful biological construct, intelligence should be a biochemical or biophysical process or at least somehow a resultant of biochemical or biophysical processes.2. Cognitive approaches. This type of account looks at molar cognitive representations and processes. To qualify as a useful mental construct, intelligence should be specifiable as a set of mental representations and processes that are identifiable through experimental, mathematical, or computational means.3. Contextual approaches. To qualify as a useful contextual construct, intelligence should be a source of individual differences in accomplishments in "real-world" performances. It is not enough just to account for performance in the laboratory. On [sic] the contextual view, what a person does in the lab may not even remotely resemble what the person would do outside it. Moreover, different cultures may have different conceptions of intelligence, which affect what would count as intelligent in one cultural context versus another.4. Systems approaches. Systems approaches attempt to understand intelligence through the interaction of cognition with context. They attempt to establish a link between the two levels of analysis, and to analyze what forms this link takes. (Sternberg, 1994, pp. 263-264)High but not the highest intelligence, combined with the greatest degrees of persistence, will achieve greater eminence than the highest degree of intelligence with somewhat less persistence. (Cox, 1926, p. 187)There are no definitive criteria of intelligence, just as there are none for chairness; it is a fuzzy-edged concept to which many features are relevant. Two people may both be quite intelligent and yet have very few traits in common-they resemble the prototype along different dimensions.... [Intelligence] is a resemblance between two individuals, one real and the other prototypical. (Neisser, 1979, p. 185)Given the complementary strengths and weaknesses of the differential and information-processing approaches, it should be possible, at least in theory, to synthesise an approach that would capitalise upon the strength of each approach, and thereby share the weakness of neither. (Sternberg, 1977, p. 65)Historical dictionary of quotations in cognitive science > Intelligence
Страницы
См. также в других словарях:
Development control in the United Kingdom — Development control, planning control, or (in Scotland) development management is the element of the United Kingdom s system of town and country planning through which local government regulates land use and new building. It relies on a plan led… … Wikipedia
Development theory — is a conglomeration of theories about how desirable change in society is best to be achieved. Such theories draw on a variety of social scientific disciplines and approaches. Contents 1 Historical development theories 1.1 Modernization theory 1.2 … Wikipedia
Strength and conditioning — is the physical development of athletic capabilities. Practiced by strength and conditioning coaches, a variety of methods are used to enhance the quality and quantity of a person s movement capabilities, usually to improve sports performance.… … Wikipedia
Strength (Tarot card) — Description and usage in divination A. E. Waite was a key figure in the development of modern Tarot interpretations (Wood, 1998). However, not all interpretations follow his practice. Tarot decks, when used for divination, are interpreted by… … Wikipedia
Development of the Test captaincy of West Indies — See also: West Indian national cricket captains This is a chronological list of defining events in the Development of the Test captaincy of the West Indies cricket team. Contents 1 1920s 2 1930s … Wikipedia
psychological development — Development of cognitive, emotional, intellectual, and social capabilities and functioning over the course of one s life. It is the subject matter of the discipline of developmental psychology. In infancy, language is acquired, perception,… … Universalium
human development — ▪ biology Introduction the process of growth and change that takes place between birth and maturity. Human growth is far from being a simple and uniform process of becoming taller or larger. As a child (child development) gets bigger,… … Universalium
Shear strength (soil) — Shear strength in reference to soil is a term used to describe the maximum strength of soil at which point significant plastic deformation or yielding occurs due to an applied shear stress. There is no definitive shear strength of a soil as it… … Wikipedia
Child development — For other uses, see Child development (disambiguation). Exploring Child development refers to the biological and psychological and emotional changes that occur in human beings between birth and the end of adolescence, as the individual progresses … Wikipedia
United Development Party — Partai Persatuan Pembangunan Chairman Suryadharma Ali Secretary General Irgan Chairul Mahfiz … Wikipedia
Defence Research and Development Organisation — Sanskrit: बलस्य मूलं विज्ञानम् Strength s Origin is in Science [1] Agency overvi … Wikipedia
