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1 Davenport, Thomas
SUBJECT AREA: Electricity[br]b. 9 July 1802 Williamstown, Vermont, USAd. 6 July 1851 Salisbury, Vermont, USA[br]American craftsman and inventor who constructed the first rotating electrical machines in the United States.[br]When he was 14 years old Davenport was apprenticed to a blacksmith for seven years. At the close of his apprenticeship in 1823 he opened a blacksmith's shop in Brandon, Vermont. He began experimenting with electromagnets after observing one in use at the Penfield Iron Works at Crown Point, New York, in 1831. He saw the device as a possible source of power and by July 1834 had constructed his first electric motor. Having totally abandoned his regular business, Davenport built and exhibited a number of miniature machines; he utilized an electric motor to propel a model car around a circular track in 1836, and this became the first recorded instance of an electric railway. An application for a patent and a model were destroyed in a fire at the United States Patent Office in December 1836, but a second application was made and Davenport received a patent the following year for Improvements in Propelling Machinery by Magnetism and Electromagnetism. A British patent was also obtained. A workshop and laboratory were established in New York, but Davenport had little financial backing for his experiments. He built a total of over one hundred motors but was defeated by the inability to obtain an inexpensive source of power. Using an electric motor of his own design to operate a printing press in 1840, he undertook the publication of a journal, The Electromagnet and Mechanics' Intelligencer. This was the first American periodical on electricity, but it was discontinued after a few issues. In failing health he retired to Vermont where in the last year of his life he continued experiments in electromagnetism.[br]Bibliography1837, US patent no. 132, "Improvements in Propelling Machinery by Magnetism and Electromagnetism".6 June 1837 British patent no. 7,386.Further ReadingF.L.Pope, 1891, "Inventors of the electric motor with special reference to the work of Thomas Davenport", Electrical Engineer, 11:1–5, 33–9, 65–71, 93–8, 125–30 (the most comprehensive account).Annals of Electricity (1838) 2:257–64 (provides a description of Davenport's motor).W.J.King, 1962, The Development of Electrical Technology in the 19th Century, Washington, DC: Smithsonian Institution, Paper 28, pp. 263–4 (a short account).GW -
2 Electricity
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3 Page, Charles Grafton
[br]b. 25 January 1812 Salem, Massachusetts, USAd. 5 May 1868 Washington, DC, USA[br]American scientist and inventor of electric motors.[br]Page graduated from Harvard in 1832 and subsequently attended Boston Medical School. He began to practise in Salem and also engaged in experimental research in electricity, discovering the improvement effected by substituting bundles of iron wire for solid bars in induction coils. He also created a device which he termed a Dynamic Multiplier, the prototype of the auto-transformer. Following a period in medical practice in Virginia, in 1841 he became one of the first two principal examiners in the United States Patent Office. He also held the Chair of Chemistry and Pharmacy at Columbian College, later George Washington University, between 1844 and 1849.A prolific inventor, Page completed several large electric motors in which reciprocating action was converted to rotary motion, and invested an extravagant sum of public money in a foredoomed effort to develop a 10-ton electric locomotive powered by primary batteries. This was unsuccessfully demonstrated in April 1851 on the Washington-Baltimore railway and seriously damaged his reputation. Page approached Thomas Davenport with an offer of partnership, but Davenport refused.After leaving the Patent Office in 1852 he became a patentee himself and advocated the reform of the patent procedures. Page returned to the Patent Office in 1861, and later persuaded Congress to pass a special Act permitting him to patent the induction coil. This was the cause, after his death, of protracted and widely publicized litigation.[br]Bibliography1867, History of Induction: The American Claim to the Induction Coil and itsElectrostatic Developments, Washington, DC.Further ReadingR.C.Post, 1976, Physics, Patents and Politics, New York (a biography which treats Page as a focal point for studying the American patent system).——1976, "Stray sparks from the induction coil: the Volta prize and the Page patent", Proceedings of the Institute of Electrical Engineers 64: 1,279–86 (a short account).W.J.King, 1962, The Development of Electrical Technology in the 19th Century, Washington, DC: Smithsonian Institution, Paper 28.GW -
4 реинжиниринг бизнес-процессов
реинжиниринг бизнес-процессов
BPR - это технология фундаментального переосмысления и радикального перепроектирования бизнес-процессов предприятия, которое необходимо для того, чтобы достичь коренных улучшений в ключевых показателях деятельности организации.
Существуют как минимум два основных подхода к реинжинирингу бизнес-процессов:
1. "Революционный", по М. Хаммеру, когда происходит резкая и довольно болезненная ломка всего старого механизма (способа ведения бизнеса, организационной структуры, внутренней культуры предприятия) и внедрение нового.
2. "Эволюционный", по Томасу Х. Дэвенпорту (Thomas H. Davenport), являющийся комбинацией реинжиниринга с методами постепенного улучшения качества процессов (см. CPI). Большое внимание уделяется вопросам управления изменениями (на основе концепции "управления проектами"). В результате процесс перемен сопряжен с меньшим риском. Данный подход стал приоритетным для государственных учреждений и организаций США.
В больших, комплексных проектах обычно применяется смешанный подход к реинжинирингу.
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