-
1 coefficient
ˌkəuɪˈfɪʃənt
1. сущ.
1) коэффициент;
показатель correlation coefficient ≈ коэффициент корреляции coefficient of expansion of a metal ≈ коэффициент расширения металла coefficient of viscosity ≈ коэффициент вязкости drag coefficient ≈ коэффициент сопротивления coefficient of efficiency absorption coefficient Syn: factor
2) действующий фактор Socrates will not allow such agencies to be called causes: he says that they are only co-efficients. ≈ Сократ называет такие факторы не причиной, а действующими факторами. Syn: joint agent
2. прил. содействующий, способствующий other coefficient cause ≈ другая способствующая причина( специальное) коэффициент - * of efficiency коэффцициент полезного действия - * of expansion коэффициент расширения - * of safety коэффициент безопасности, запас прочности( книжное) содействующий фактор содействующий coefficient коэффициент;
coefficient of efficiency тех. коэффициент полезного действия ~ коэффициент ~ содействующий ~ содействующий фактор ~ of determination стат. коэффициент смешанной корреляции coefficient коэффициент;
coefficient of efficiency тех. коэффициент полезного действия ~ of utilization коэффициент использования confidence ~ доверительная вероятность confidence ~ доверительный уровень constant ~ вчт. постоянный коэффициент correlation ~ вчт. коэффициент корреляции correlation ~ коэффициент корреляции floating-point ~ вчт. мантисса inequality ~ вчт. коэффициент расхождения multiple correlation ~ коэффициент множественной корреляции proportionality ~ вчт. коэффициент пропорциональности rank correlation ~ коэффициент ранговой корреляции regression ~ вчт. коэффициент регрессии scatter ~ вчт. коэффициент разброса variable ~ вчт. переменный коэффициентБольшой англо-русский и русско-английский словарь > coefficient
-
2 coefficient
[ˌkəuɪ'fɪʃ(ə)nt] 1. сущ.1) коэффициент; показательcoefficient of efficiency — тех. коэффициент полезного действия
Syn:2. прил.Socrates will not allow such agencies to be called causes: he says that they are only coefficients. (G. Grote, Plato, 1865) — Сократ называет такие факторы не причинами, а действующими факторами.
содействующий, способствующий -
3 коэффициент линейного расширения
n1) eng. coefficient de dilatation, nombre de dilatation2) construct. coefficient d'expansion linéaire3) metal. coefficient de dilatation linéaire, module d'extension linéaire4) mech.eng. coefficient linéaire, nombre de dilatation linéaireDictionnaire russe-français universel > коэффициент линейного расширения
-
4 коэффициент теплового расширения
n1) eng. coefficient thermique2) construct. coefficient d'expansion thermique3) metal. coefficient de dilatation thermiqueDictionnaire russe-français universel > коэффициент теплового расширения
-
5 коэффициент расширения
n1) eng. coefficient d'expansion, rapport de détente2) construct. facteur d'expansion3) metal. coefficient de dilatation4) mech.eng. (теплового) coefficient de dilatationDictionnaire russe-français universel > коэффициент расширения
-
6 thermal
1) термический
2) радиотепловой
3) теплосиловой
4) термальный
5) термозэрозольный
6) термоопреснительный
7) термошумовой
8) термо-
9) калорический
10) температурный
11) пиролитический
– thermal battery
– thermal black
– thermal break-down
– thermal broadening
– thermal cabinet
– thermal capacity
– thermal coagulation
– thermal column
– thermal conductivity
– thermal convection
– thermal converter
– thermal crack
– thermal cracking
– thermal cut-out
– thermal decomposition
– thermal diffusion
– thermal dissociation
– thermal drift
– thermal effect
– thermal efficiency
– thermal equilibrium
– thermal equivalent
– thermal etching
– thermal expansion
– thermal fatigue
– thermal flotations
– thermal flux
– thermal gasoline
– thermal imager
– thermal imaging
– thermal instrument
– thermal insulation
– thermal ion
– thermal ionization
– thermal lag
– thermal microphone
– thermal motion
– thermal naphtha
– thermal neutron
– thermal noise
– thermal ohm
– thermal overload
– thermal phonon
– thermal physics
– thermal plasma
– thermal plasticization
– thermal property
– thermal radiation
– thermal radiator
– thermal reactor
– thermal relay
– thermal resistance
– thermal runaway
– thermal spike
– thermal stability
– thermal strain
– thermal stress
– thermal switch
– thermal test
– thermal trap
– thermal tuning
– thermal water
– thermal wattmeter
– thermal wind
coefficient of thermal conductivity — <phys.> коэффициент теплопроводности
coefficient of thermal expansion — коэффициент теплового расширения, коэффициент теплового удлинения
thermal imaging unit — <math.> прибор тепловизионный, <tech.> тепловизор
thermal reduction methods — <metal.> металлотермия
thermal stability factor — коэффициент температурной стабильности
-
7 ratio
отношение, соотношение, пропорция; степень; коэффициент, см. тж. coefficient; передаточное число [отношение]all-out level/stalling speed ratio — относительный диапазон скоростей полёта (отношение максимальной скорости горизонтального полёта к скорости сваливания)
base(-altltude, -height) ratio — отношение величины базиса фотографирования к высоте
burning (surface)-to-throat (area) ratio — отношение поверхности горения к площади критического сечения сопла (в РДТТ)
chamber volume-to-throat area ratio — приведенная [характеристическая] длина камеры сгорания
envelope-bulk to weight ratio — отношение объёма, занимаемого двигателем, к его сухому весу
lift-(over, to-)drag ratio — аэродинамическое качество
main rotor/engine r.p.m. ratio — степень редукции между двигателем, и несущим винтом, соотношение чисел оборотов несущего винта и вала двигателя
maintenance (man hours)-to-flight (hours) ratio — соотношение объёма работ по наземному обслуживанию (в человеко-часах) и налёта
mixing ratio of moist air — метео. влагосодержаиие
port(-to-)throat ratio — относительная свободная площадь (отношение свободной площади к площади критического сечения сопла)
ratio of specific heats — отношение удельных теплоёмкостей, показатель адиабаты
stoichiometric (equivalence, mixture) ratio — стехиометрическое соотношение компонентов топлива, стехиометрический коэффициент состава топлива
— - to-thrust ratio -
8 unit
1) сборочная единица; узел; блок2) установка; агрегат3) единица, единица измерения || единичный; удельный4) часть; секция || секционный•as a unit — 1) в сборе 2) как единая сборочная единица; как единый узел
unit under test — 1) объект контроля 2) объект диагностирования, объект технического диагностирования
- AC unit- actuating unit
- adapter plate unit
- adaptive control unit
- address and data interface unit
- address unit
- adjusting unit
- air-aspirating unit
- answer-back unit
- arithmetic unit
- arithmetic/logic unit
- arithmetical unit
- ASC unit
- assembly unit of N-order
- assembly unit
- audio response unit
- autoloading unit
- automatic calling unit
- auxiliary data translator unit
- availability control unit
- axis unit
- axis-processing unit
- balancer unit
- banking unit
- bar feed unit
- base assembly unit
- base unit
- basic information unit
- basic length unit
- basic logic unit
- batch control unit
- bearing unit
- behind-the-tape reader unit
- belt shuttle unit
- belt-driven shuttle unit
- bench-testing unit
- blemished unit
- bolt-on unit
- booster unit
- boring spindle unit
- boring unit
- boring-and-milling unit
- brake unit
- broach retriever unit
- broach-handling unit
- broken tool sensing unit
- buffer unit
- building-block machining unit
- bulk transfer unit
- business unit
- card punching unit
- carousel loading unit
- carousel unit
- carrier unit
- cartridge unit
- cellular unit
- center unit for machine frame
- central processing unit
- central processor unit
- chain storage unit
- changer unit
- changing unit
- check unit
- chiller unit
- chip disposal unit
- clamping unit
- claw unit
- CNC machining unit
- CNC standard unit
- CNC unit
- coating application unit
- coating removal unit
- coherent unit
- column unit
- combination valve unit
- command unit
- communications central processing unit
- complementary unit
- computerized numerical control unit
- condensing unit
- cone variable-speed friction drive unit
- console unit
- constant coefficient unit
- constant delay unit
- construction unit
- control unit
- controlling unit
- conveying unit
- conveyor unit
- coolant management unit
- coolant recovery unit
- coolant unit
- cooler unit
- cooling unit
- coordinate preprogramming unit
- copying unit
- correction unit
- cover unit
- CPC handling unit
- cross tapping unit
- cross-slide unit
- cutoff unit
- cutting unit
- D unit
- damping unit
- data preparation unit
- data transmission control unit
- deep hole boring unit
- delay unit
- derived unit
- detecting unit
- detection unit
- developing unit
- digital display unit
- digital readout unit
- digital unit
- dimension readout unit
- diode array unit
- disk-type variable-speed friction drive unit
- displacement unit
- display unit
- distance-keeping unit
- double-acting unit
- double-notching unit
- double-pump and combination unit
- double-pump unit
- double-reduction gear unit
- double-reduction right-angle reduction gear unit
- double-reduction twin gear unit
- double-reduction twin unit
- double-reduction wormgear unit
- double-spindle unit
- down-hole internal deburrer unit
- dresser unit
- dressing unit
- drill unit
- drilling and milling unit
- drilling spindle unit
- drilling unit
- drilling/tapping unit
- drive unit
- drive/feed unit
- DRO unit
- dual work pallet shuttle unit
- dual-head laser beam unit
- dust-collecting unit
- dust-removing unit
- dynamic unit
- EDM unit
- electrical machining units
- electromagnetic unit
- electron-beam unit
- entry level dedicated unit
- environmental compensation unit
- exchanger unit
- fabricated unit
- facing unit
- fan coil unit
- feed box unit
- feed change unit
- feed drive cartridge unit
- feed unit
- feedback unit
- feed-in boring unit
- feed-out boring unit
- fetch-and-carry unit
- filtration unit
- fine boring unit
- flexible spindle units
- flexible tray unit
- floor unit
- focusing unit
- free-standing unit
- free-wheel unit
- free-wheeling unit
- frontal variable-speed friction drive unit
- functional unit
- fundamental unit
- gage control unit
- gage indicating unit
- gage unit
- gaging unit
- gas turbine starter auxiliary power unit
- gear unit
- gearbox unit
- gear-reversing unit
- grasping unit
- grinding spindle unit
- gripper unit
- guide unit
- handling unit
- hardware/software add-on unit
- harmonic drive unit
- head unit
- headstock-type workpiece holding unit
- hoisting unit
- horizontal power unit
- horizontal way unit
- hydraulic clamping unit
- hydraulic feed unit
- hydraulic power unit
- hydraulic testing unit
- hydraulic unit
- hydrostatic bearing unit
- ICAM manufacturing unit
- ICAM unit
- icon-driven control unit
- indexer/fourth axis unit
- indexing head unit
- indexing platen unit
- indexing table unit
- indexing unit
- in-die tapping unit
- information retrieval unit
- information unit
- input batch control unit
- input unit
- input-output unit
- in-system unit
- integral unit
- interface unit
- intermediate storage unit
- interpolating unit
- inverting unit
- keyboard unit
- knee-type unit
- lapping and superfinishing unit
- laser beam composition unit
- laser beam unit
- laser processing unit
- laser unit
- laser-calibration unit
- laser-source unit
- lead screw tap unit
- lexical unit
- lift unit
- lift-and-carry unit
- light unit
- linear ball bearing unit
- linear drive unit
- linear screw unit
- linear slide roller bearing unit
- linear unit
- live storage unit
- load/unload unit
- loading unit
- loading-and-unloading unit
- logic unit
- logical unit
- lubricating pump unit
- machine control unit
- machine tool control unit
- machine tooling unit
- machine unit
- machine-dedicated unit
- machining center unit
- machining head unit
- machining unit
- magnetic pickup unit
- magnetic tape unit
- manned flexible unit
- marking unit
- master unit
- material-handling unit
- MDI unit
- measurement unit
- measuring unit
- memory unit
- message display unit
- microdispensing unit
- microprocessor correction unit
- microprocessor NC unit
- microprocessor unit
- microprocessor-based unit
- microprocessor-type NC unit
- middle-level 3-D representation unit
- milling spindle unit
- minicomputer control unit
- miniload AS/RS unit
- mist coolant unit
- miter saw unit
- mobile unit
- mobile work storage unit
- modular cell unit
- modular loading unit
- modular unit
- motor unit
- motor-reduction unit
- multichannel analyzer unit
- multidrill unit
- multiple screw-driving unit
- multiple-power path gear unit
- multiple-reduction gear unit
- multiple-reduction unit
- multiple-spindle torque unit
- multipurpose machining unit
- multispindle boring unit
- multitap unit
- NC data creation unit
- NC unit
- nested gear unit
- notching unit
- nutating unit
- off-machine unit
- off-system unit
- oil coalescer unit
- oil-filled feed unit
- one stage gear unit
- one stage unit
- on-machine unit
- operation unit
- operational unit
- operator-friendly program unit
- orientation transfer unit
- output batch control unit
- output unit
- overhead gantry unit
- overhead spindle unit
- pack unit
- pallet change unit
- pallet exchange unit
- pallet shuttle unit
- pallet-pool unit
- parallel-shaft reduction gear unit
- PC expansion board unit
- PC-based CAD unit
- pendant control unit
- pendant pushbutton control unit
- pendant unit
- peripheral control unit
- peripheral processing unit
- photo-eye tracing unit
- pick-and-place unit
- pickup unit
- piece-holding unit
- pilot unit
- placement unit
- planetary gear unit
- planetary reduction gearing unit
- plant unit
- plasma-arc unit
- plasmarc unit
- platen unit
- PLC unit
- plugboard input unit
- plugboard unit
- plug-in unit
- pneumatic unit
- portable unit
- power feed unit
- power supply unit
- power train unit
- power unit
- power-generating unit
- power-tooling unit
- practical correction unit
- practical unit
- presetting unit
- pressurized air bearing unit
- primary storage unit
- probe unit
- processing unit
- production unit
- program unit
- programming unit
- propulsion unit
- pulling unit
- pump unit
- pumping unit
- pump-motor unit
- quill feed cam unit
- quill spindle unit
- quill unit
- raster unit
- readout unit
- reducing unit
- reduction gear unit
- reduction gearing unit
- reduction unit
- reed make contact unit
- regulating unit
- remote display unit
- replacement unit
- retriever unit
- right-angle milling unit
- right-angled milling unit
- robot power unit
- robot unit
- robot-transfer unit
- roller bearing unit
- roller unit
- roller-marking unit
- rotary unit
- rotating seal unit
- S unit
- scanning unit
- scheduling unit
- screen projection unit
- screwing unit
- sealed reed contact unit
- self-contained NC unit
- self-contained unit
- sensing unit
- sensor unit
- servo unit
- shankless boring unit
- sheet metal stamping automatic unit
- shop replaceable unit
- shuttle unit
- shuttle-and-lift unit
- side unit
- single-acting unit
- single-light unit
- single-reduction gear unit
- single-reduction unit
- sizing unit
- slant bed unit
- slave unit
- slide unit
- sliding table unit
- smallest replaceable unit
- spare unit
- speeder unit
- speed-increase unit
- speed-up spindle unit
- speed-up unit
- spindle box unit
- spindle cartridge unit
- spindle drive unit
- spindle unit
- stabilizing unit
- stand-alone unit
- standard build units
- starter auxiliary power unit
- static tooling unit
- steam generating unit
- stock feed unit
- storage unit
- stylus unit
- sub-multiple unit
- swing arm-mounted control unit
- tangent unit
- tapping unit
- teach control unit
- terminal control unit
- test unit
- testing unit
- thermal detecting unit
- tilting unit
- tolerance unit
- tool storage unit
- tool-presetting unit
- tool-spindle unit
- toroidal variable-speed friction drive unit
- track and store unit
- transfer unit
- transmission control unit
- transmission unit
- transmitter/receiver unit
- transport unit
- triple-reduction gear unit
- triple-reduction unit
- tuning unit
- turnaround unit
- turning spindle unit
- turnround unit
- turret unit
- twin gear unit
- twin saw unit
- twin-drive unit
- twin-screen unit
- unit of displacement
- unit of measure
- unit of measurement
- unit of physical quantity
- unit of product
- unit of work per unit of time
- unmanned machining unit
- vacuum unit
- variable coefficient unit
- variable delay unit
- variable preload bearing unit
- variable ratio unit
- variable speed unit
- variable-speed friction drive unit
- V-axis grinding unit
- V-belt variable-speed drive unit
- V-drive unit
- vertical way unit
- vibratory feed unit
- vise unit
- visual display unit
- vocal output unit
- VTL unit
- waveform gear reduction unit
- wheel-dressing unit
- wheel-head unit
- wing unit
- wing-base unit
- work storage unit
- work-holding headstock unit
- workshop video unit
- work-testing unit
- worm reduction unit
- writing unit
- yet-to-be-assembled unitEnglish-Russian dictionary of mechanical engineering and automation > unit
-
9 Chevenard, Pierre Antoine Jean Sylvestre
SUBJECT AREA: Metallurgy[br]b. 31 December 1888 Thizy, Rhône, Franced. 15 August 1960 Fontenoy-aux-Roses, France[br]French metallurgist, inventor of the alloys Elinvar and Platinite and of the method of strengthening nickel-chromium alloys by a precipitate ofNi3Al which provided the basis of all later super-alloy development.[br]Soon after graduating from the Ecole des Mines at St-Etienne in 1910, Chevenard joined the Société de Commentry Fourchambault et Decazeville at their steelworks at Imphy, where he remained for the whole of his career. Imphy had for some years specialized in the production of nickel steels. From this venture emerged the first austenitic nickel-chromium steel, containing 6 per cent chromium and 22–4 per cent nickel and produced commercially in 1895. Most of the alloys required by Guillaume in his search for the low-expansion alloy Invar were made at Imphy. At the Imphy Research Laboratory, established in 1911, Chevenard conducted research into the development of specialized nickel-based alloys. His first success followed from an observation that some of the ferro-nickels were free from the low-temperature brittleness exhibited by conventional steels. To satisfy the technical requirements of Georges Claude, the French cryogenic pioneer, Chevenard was then able in 1912 to develop an alloy containing 55–60 per cent nickel, 1–3 per cent manganese and 0.2–0.4 per cent carbon. This was ductile down to −190°C, at which temperature carbon steel was very brittle.By 1916 Elinvar, a nickel-iron-chromium alloy with an elastic modulus that did not vary appreciably with changes in ambient temperature, had been identified. This found extensive use in horology and instrument manufacture, and even for the production of high-quality tuning forks. Another very popular alloy was Platinite, which had the same coefficient of thermal expansion as platinum and soda glass. It was used in considerable quantities by incandescent-lamp manufacturers for lead-in wires. Other materials developed by Chevenard at this stage to satisfy the requirements of the electrical industry included resistance alloys, base-metal thermocouple combinations, magnetically soft high-permeability alloys, and nickel-aluminium permanent magnet steels of very high coercivity which greatly improved the power and reliability of car magnetos. Thermostatic bimetals of all varieties soon became an important branch of manufacture at Imphy.During the remainder of his career at Imphy, Chevenard brilliantly elaborated the work on nickel-chromium-tungsten alloys to make stronger pressure vessels for the Haber and other chemical processes. Another famous alloy that he developed, ATV, contained 35 per cent nickel and 11 per cent chromium and was free from the problem of stress-induced cracking in steam that had hitherto inhibited the development of high-power steam turbines. Between 1912 and 1917, Chevenard recognized the harmful effects of traces of carbon on this type of alloy, and in the immediate postwar years he found efficient methods of scavenging the residual carbon by controlled additions of reactive metals. This led to the development of a range of stabilized austenitic stainless steels which were free from the problems of intercrystalline corrosion and weld decay that then caused so much difficulty to the manufacturers of chemical plant.Chevenard soon concluded that only the nickel-chromium system could provide a satisfactory basis for the subsequent development of high-temperature alloys. The first published reference to the strengthening of such materials by additions of aluminium and/or titanium occurs in his UK patent of 1929. This strengthening approach was adopted in the later wartime development in Britain of the Nimonic series of alloys, all of which depended for their high-temperature strength upon the precipitated compound Ni3Al.In 1936 he was studying the effect of what is now known as "thermal fatigue", which contributes to the eventual failure of both gas and steam turbines. He then published details of equipment for assessing the susceptibility of nickel-chromium alloys to this type of breakdown by a process of repeated quenching. Around this time he began to make systematic use of the thermo-gravimetrie balance for high-temperature oxidation studies.[br]Principal Honours and DistinctionsPresident, Société de Physique. Commandeur de la Légion d'honneur.Bibliography1929, Analyse dilatométrique des matériaux, with a preface be C.E.Guillaume, Paris: Dunod (still regarded as the definitive work on this subject).The Dictionary of Scientific Biography lists around thirty of his more important publications between 1914 and 1943.Further Reading"Chevenard, a great French metallurgist", 1960, Acier Fins (Spec.) 36:92–100.L.Valluz, 1961, "Notice sur les travaux de Pierre Chevenard, 1888–1960", Paris: Institut de France, Académie des Sciences.ASDBiographical history of technology > Chevenard, Pierre Antoine Jean Sylvestre
См. также в других словарях:
coefficient — noun Etymology: New Latin coefficient , coefficiens, from Latin co + efficient , efficiens efficient Date: circa 1715 1. any of the factors of a product considered in relation to a specific factor; especially a constant factor of a term as… … New Collegiate Dictionary
coefficient — 1. The expression of the amount or degree of any quality possessed by a substance, or of the degree of physical or chemical change normally occurring in that substance under stated conditions. 2. The ratio or factor that relates a quantity… … Medical dictionary
thermal coefficient of expansion — a measure of the dimensional change of a metal with temperature, caused by changes in the magnitude of atomic vibration that affect the atomic spacing … Mechanics glossary
Metal-halide lamp — A metal halide gas discharge lighting system provides illumination for a college baseball game at Olsen Field in College Station, Texas, United States. Note the various colors of the lights as they warm up. Metal halide lamps, a member of the… … Wikipedia
Coefficient of thermal expansion — When the temperature of a substance changes, the energy that is stored in the intermolecular bonds between atoms changes. When the stored energy increases, so does the length of the molecular bonds. As a result, solids typically expand in… … Wikipedia
Metal foam — Foamed aluminium A metal foam is a cellular structure consisting of a solid metal, frequently aluminium, containing a large volume fraction of gas filled pores. The pores can be sealed (closed cell foam), or they can form an interconnected… … Wikipedia
Thermal expansion — Thermodynamics … Wikipedia
Glass-to-metal seal — Glass to metal seals are a very important element of the construction of vacuum tubes, electric discharge tubes, incandescent light bulbs, glass encapsulated semiconductor diodes, reed switches, pressure tight glass windows in metal cases, and… … Wikipedia
Balance wheel — in a cheap 1950s alarm clock, the Apollo, by Lux Mfg. Co. showing the balance spring (1) and regulator (2) … Wikipedia
Invar — Échantillons d Invar L Invar est un alliage de fer (64 %) et de nickel (36 %) dont la propriété principale est d avoir un coefficient de dilatation très faible. Cette invention est due au suisse Charles Edouard Guillaume, qui fut… … Wikipédia en Français
Polytétrafluoroéthylène — Structure du PTFE. Général … Wikipédia en Français
