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61 condition
1. условие2. состояние; положение; обстановка3. режимcondition for a nontrivial solutioncondition of optimality1-g condition20-deg angle-of-attack conditionaim conditionsairworthy conditionaltitude conditionapproach conditionsasymmetric wing sweep conditionsaustere conditionsbegin cruise conditionsbelow-stall conditionbest-range conditionsboundary conditionscaution conditionsceiling conditionsCFL conditionclimb conditioncontinuity conditionCourant-Friedrichs-Levi conditioncrossflow conditionscruise conditioncruise conditionsday conditionsdeep-stalled conditiondeparture conditionsDirichlet conditiondisplacement boundary conditionsdivergence conditiondivergent conditiondutch roll conditionelevator-free conditionengine-out conditionenvironmental conditionequilibrium conditionfailure conditionsfar-field boundary conditionfatigue conditionfinal conditionsflexural conditionsflight conditionflight conditionsflow conditionsflow tangency conditionflutter conditionsflutter onset conditionsflyaway conditionfoggy conditionsforce boundary conditionsfree-flight conditionfree-free boundary conditionsfreestream conditionfreestream conditionsfull-down conditionfull-scale conditionshigh conditionshigh-angle-of-attack conditionshigh-maneuver-lift conditionshigh-drag conditionhigh-g conditionshot conditionshover conditionhover-flight conditionicing conditionsinitial steady-flight conditionsinstrument conditionsinstrument meteorological conditionsKuhn-Tucker conditionsKutta conditionKutta-Zhukowsky conditionlanding conditionlanding conditionslaunch conditionslift conditionlift-equal-to-weight conditionlighting conditionslightning conditionslimit conditionload conditionsloading conditionslongitudinally trimmed conditionlow-angle-of-attack conditionslow-visibility conditionslow-light conditionslow-speed conditionsmaneuver conditionmaneuver entry conditionsmaneuvering conditionmaximum endurance conditionsmeteorological conditionsminimum drag conditionmission abort conditionsnear-field boundary conditionsNeumann boundary conditionneutral backside conditionno-slip conditionno-wind conditionsno-windshear conditionnonmaneuver conditionsnonpowered-lift conditionoff-design conditionsoff-nominal conditionsomega conditionoperating conditionoperational conditionoptimality conditionoscillatory conditionout-of-balance conditionout-of-trim conditionoverheat conditionoverload conditionsovertemperature conditionperiodicity conditionpost-stall conditionpostcrash conditionspowered-lift conditionpre-stall conditionpull-up conditionquasi-steady-state conditionRankine-Hugoniot conditionsresonant conditionrestraint conditionsrotating conditionsscaling conditionsea-level conditionsshock-on-lip conditionsimulator conditionssliding conditionslip conditionslow flight conditionsstalled conditionstalled conditionssteady-state conditionSTOL conditionsstraight-and-level conditionsstress conditionsubcritical conditionssupercritical conditionsupersonic conditionssupersonic leading-edge conditionsupport conditionssystem-off conditiontailwind conditionstakeoff conditionstask conditionstemperature jump conditionterminal conditiontip conditionstransient conditiontransonic conditiontranspiration conditiontransversality conditionTresca`s yield conditiontrim conditiontrimmed conditiontropical day conditionsunaugmented flutter conditionunstable conditionviewing conditionsvisibility conditionsvisual contact conditionswake conditionswashout conditionweather conditionswind conditionswind shear conditionswing-leveled conditionwing rock conditionwings-level conditionworking conditionszero-wind conditions -
62 Booth, Hubert Cecil
SUBJECT AREA: Civil engineering, Domestic appliances and interiors, Mechanical, pneumatic and hydraulic engineering, Ports and shipping[br]b. 1871 Gloucester, England d. 1955[br]English mechanical, civil and construction engineer best remembered as the inventor of the vacuum cleaner.[br]As an engineer Booth contributed to the design of engines for Royal Navy battleships, designed and supervised the erection of a number of great wheels (in Blackpool, Vienna and Paris) and later designed factories and bridges.In 1900 he attended a demonstration, at St Paneras Station in London, of a new form of railway carriage cleaner that was supposed to blow the dirt into a container. It was not a very successful experiment and Booth, having considered the problem carefully, decided that sucking might be better than blowing. He tried out his idea by placing a piece of damp cloth over an upholstered armchair. When he sucked air by mouth through his cloth the dirt upon it was tangible proof of his theory.Various attempts were being made at this time, especially in America, to find a successful cleaner of carpets and upholstery. Booth produced the first truly satisfactory machine, which he patented in 1901, and coined the term "vacuum cleaner". He formed the Vacuum Cleaner Co. (later to become Goblin BVC Ltd) and began to manufacture his machines. For some years the company provided a cleaning service to town houses, using a large and costly vacuum cleaner (the first model cost £350). Painted scarlet, it measured 54×10×42 in. (137×25×110 cm) and was powered by a petrol-driven 5 hp piston engine. It was transported through the streets on a horse-driven van and was handled by a team of operators who parked outside the house to be cleaned. With the aid of several hundred feet of flexible hose extending from the cleaner through the windows into all the rooms, the machine sucked the dirt of decades from the carpets; at the first cleaning the weight of many such carpets was reduced by 50 per cent as the dirt was sucked away.Many attempts were made in Europe and America to produce a smaller and less expensive machine. Booth himself designed the chief British model in 1906, the Trolley- Vac, which was wheeled around the house on a trolley. Still elaborate, expensive and heavy, this machine could, however, be operated inside a room and was powered from an electric light fitting. It consisted of a sophisticated electric motor and a belt-driven rotary vacuum pump. Various hoses and fitments made possible the cleaning of many different surfaces and the dust was trapped in a cloth filter within a small metal canister. It was a superb vacuum cleaner but cost 35 guineas and weighed a hundredweight (50 kg), so it was difficult to take upstairs.Various alternative machines that were cheaper and lighter were devised, but none was truly efficient until a prototype that married a small electric motor to the machine was produced in 1907 in America.[br]Further ReadingThe Story of the World's First Vacuum Cleaner, Leatherhead: BSR (Housewares) Ltd. See also Hoover, William Henry.DY -
63 Jacobi, Moritz Hermann von
SUBJECT AREA: Electricity[br]b. 21 September 1801 Potsdam, Germanyd. 27 February 1874 St Petersburg, Russia[br]German scientist who developed one of the first practical electric motors.[br]After studying architecture at Göttingen University, Jacobi turned his attention to physics and chemistry. In 1835 he was appointed a professor of civil engineering at the University of Dorpat (which later assumed the Estonian name of Tartu). Later, moving to St Petersburg, he became a member of the Imperial Academy of Sciences and commenced research on electricity and its practical applications. In December 1834 Jacobi presented a paper to the Academy of Sciences in Paris in which he stated that he had obtained rotation by electromagnetic methods in May of that year. Tsar Nicholas of Russia gave him a grant to prove that his electric motor had a practical application. Jacobi had a boat constructed that measured 28 ft in length and was propelled by paddles connected to an electric motor of his own design. Powered by Grove cells, it carried about fourteen passengers at a speed of almost 3 mph (5 km/h) on the River Neva. The weight of and possibly the fumes from the batteries contributed to the abandonment of the project. In 1839 Jacobi introduced electrotyping, i.e. the reproduction of forms by electrodeposition, which was one of the first commercial applications of electricity. In 1840 he reported the results of his investigations into the power of the electromagnet as a function of various parameters to the British Association.[br]Principal Honours and DistinctionsMember, Imperial Academy of Sciences, St Petersburg, 1847.BibliographyJacobi's papers are listed in Catalogue of Scientific Papers, 1868, Vol. III, London: Royal Society, pp. 517–18.1837, Annals of Electricity 1:408–15 and 419–44 (describes his motor).Further ReadingBiography, 1876, Bulletin de l'Académie imperiale des sciences de St Petersburg 21:262–79.E.H.Huntress, 1951, in Proceedings of the American Academy of Arts and Sciences 79: 22–3 (a short biography).B.Bowers, 1982, A History of Electric Light and Power, London.GWBiographical history of technology > Jacobi, Moritz Hermann von
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64 taxi
taxi nрулениеtaxiing vрулениеaerial taxiing to takeoffруление по воздуху к месту взлетаaerodrome taxi circuitсхема руления по аэродромуair taxiвоздушное таксиair taxiingруление по воздухуcleared for taxiруление разрешеноdesign taxiing massрасчетная масса при руленииfrom landing taxiingруление после посадкиground taxi from landing operationруление после посадкиground taxi operationруление по аэродромуtakeoff taxiingвыруливание на исполнительный старт для взлетаtaxi channelрулежная дорожкаtaxi clearanceразрешение на рулениеtaxi fuelтопливо, расходуемое при руленииtaxi inзаруливатьtaxi in for parkingзаруливать на место стоянкиtaxiing aircraftрулящее воздушное судноtaxiing direction lineлиния направления руленияtaxiing distanceдистанция руленияtaxiing guidance aidsсредства управления рулениемtaxiing guidance systemсистема управления рулениемtaxiing laneлиния руленияtaxiing loadнагрузка при руленииtaxiing manoeuvreманевр при руленииtaxiing speedскорость руленияtaxiing timeвремя руленияtaxiing to takeoff positionвыруливание на исполнительный старт для взлетаtaxi instructionуказания по выполнению руленияtaxi lightрулежная фараtaxi loopобводная рулежная дорожкаtaxi outвыруливатьtaxi patternсхема руленияtaxi portionучасток для выруливанияtaxi radarрадиолокатор контроля за рулениемtaxi requestзапрос на рулениеtaxi runпробег при руленииtaxi streamlineсхема руленияtaxi testsрулежные испытанияtaxi upподруливатьtaxi weightрулежная массаterminal area taxi sequenceочередность заруливания к зданию аэровокзалаwhile taxiingв процессе руления
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