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61 экстремальное значение
1. extreme2. extreme valueРусско-английский большой базовый словарь > экстремальное значение
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62 τηρέω
Aτετήρηκα Epicur.Sent.24
, etc.:—watch over, take care of, guard, ;πόλιν Pi.
l.c., cf. Ar.V. 210;τὰς κύνας X.Cyn.6.1
; ; rarely of persons,δαιμόνων.., αἵτινες τηροῦμεν ὑμᾶς Ar.Nu. 579
(troch.); τ. τὴν ἀρχήν maintain it, Plb.21.32.2;τὸ τῆς πόλεως ἀξίωμα D.S.17.15
:—[voice] Pass., τὸ ἔξωθεν [τεῖχος] ἐτηρεῖτο was constantly guarded, Th.2.13: [tense] fut. [voice] Med. τηρήσομαι in pass. sense, Id.4.30.2 τ. ὅπως.. ἔσται take care that.., Arist.Pol. 1309b16; ὅπως μηθὲν παρανομῶσι ib. 1307b31; τ. μὴ.. cavere ne.., Ar.Th. 580, Pl.Tht. 169c;τ. ἐμέ, ὅπως μὴ ἐξαπατήσω D.18.276
: also in [voice] Med.,τηρώμεσθ', ὅπως μὴ.. αἰσθήσεται Ar. V. 372
; τηροῦ μὴ λάβῃς ὑπώπια ib. 1386.3 τηρεῖν ἀπὸ τοῦ πυρός protect them from the fire, i.e. cook them slowly, Bilabel Ὀψαρτ.P. 10.II give heed to, watch narrowly, observe, , cf. V. 364;τὰς ἁμαρτίας Th.4.60
; , cf. Pl.R. 442a;τ. ὅ τι καὶ δράσει Ar.Ec. 946
.2 watch for a person or thing, with a part.,παραστείχοντα τηρήσας S.OT 808
; ἔνδον ὄντα τηρήσαντες αὐτόν having watched for his being within, Th.1.134; τ. τὸν πορθμὸν κατιόντος τοῦ ἀνέμου watching for a crossing with the wind blowing down, Id.6.2; τ. τινὰ ἀνιόντα watch for one's coming up, D.53.17: c. acc. only,ἄνεμον τηρῆσαι Th.1.65
;τ. νύκτα χειμέριον Id.3.22
, cf. 4.27; νύκτα καὶ ὕδωρ, D.59.103;τ. τοὺς ἀστέρας Arist.Cael. 292a8
; τὴν θήραν τ. Id.HA 623a13;τ. καιρόν Id.Rh. 1382b10
:—[voice] Pass., ὁ καιρὸς ἐτηρήθη was watched for, Lys.12.71.3 abs., watch, keep watch, Th. 7.80, Arist.EN 1167b13: c. inf., watch or look out, so as to..,ἐτήρουν ἀνέμῳ καταφέρεσθαι Th.4.26
.4 observe, notice, [ μετακόσμησιν σωμάτων] Sor.1.41;τὸν χαρακτῆρα τῆς φράσεως Id.Vit. Hippocr.13
;τὸ πολὺ μὲν οὕτως ἀποβαίνειν τετήρηται Gal. 18(2).13
.5 test by observation or trial, τετηρημένον βοήθημα an approved method of treatment, Antyll. ap. Orib.6.22.3; τετήρηνται χρησιμεύοντές τισι Id.ib.21.9; as Empiric term,τετηρημένης ἐπ' αὐτοῖς τῆς θεραπείας, οὐκ ἐνδεικτικῶς εὑρισκομένης Gal.6.361
;Μηνόδοτος ὁ ἐμπειρικός, ἐπὶ μόνῃ τῇ πληθωρικῇ καλουμένῃ συνδρομῇ φάσκων τετηρῆσθαι φλεβοτομίαν Id.15.766
.III observe or keep an engagement,ὅρκους Democr.239
;παρακαταθήκας Isoc.1.22
;ἀπόρρητα Lys. 31.31
;εἰρήνην D.18.89
;τὸ πρέπον Phld.Po.5.35
;τὴν πίστιν 2 Ep.Ti. 4.7
.2 preserve, retain, τὰς αἰσθήσεις dub. in Epicur.Ep.1p.5U., cf. Demetr.Lac.Herc.1055.9,10;ἰδιότητας Phld.Rh.1.154
S.;τὴν ποιότητα Sor.1.51
; τὴν τροφὸν ἐπ' ὀλιγοποσίας.. τ. ib. 118, cf. 46, al.:—in Ph.1.125 there is a double use. -
63 ἐπίστασις
A stopping, stoppage, [ τῆς κοιλίης], οὔρου, Hp.Coac. 480, Prorrh.1.110; ἐ. αἵματος sluggishness of the flow of blood, Id.Insomn.93, cf. Arist.GA 718a21; of the growth of trees, Thphr.CP2.9.1; πρὸς ἐπίστασιν τῶν ἄλλων as a deterrent to others, PAmh.2.134.9 (ii A.D.).2. violence, vehemence, ἐπαινεῖ τὴν Ζήνωνος πραγματείαν μετὰ δή τινος λαμπρᾶς ἐ. Procl. in Prm.p.604 S.II. ([etym.] ἐφίσταμαι) stopping, halt,τοῦ στρατεύματος X.An.2.4.26
, cf. Plb.8.28.13; φροντίδων ἐπιστάσεις haltings of thought, anxious thoughts, S.Ant. 225;ἐπιστάσεις καὶ διατριβαί Plu.2.48b
(following quot. of S.Ant. 232); opp. κίνησις, Arist.de An. 407a33, cf. LI 969b3.b. ἐπίστασιν ἔχει, πῶς.. there is a difficulty, as to how.., Id.Metaph. 1089b25.2. stopping to examine a thing, observation, attention,τοῦτ' ἄξιον ἐπιστάσεως, εἰ.. Id.Ph. 196a36
; μετὰ ἐ. Plb.2.2.2; μετὰπολλῆς ἐ. καὶ φιλοτιμίας D.S.29.32
;ἄξιος ἐπιστάσεως Plb.11.2.4
, Phld. Rh.1.31 S.; ἄγειν τινὰ εἰς ἐ. Plb.9.22.7; ἐξ ἐ. ῥητέον carefully, Id.3.58.3; ἐπίστασίν τινων λαμβάνειν Aristeas 256; medical treatment, care,πρὸς φλεγμονήν Sor.1.76
: generally, care, attention, Phld.Lib. p.50., Mus.p.84K.3. = ἐπιστασία 11, D.S.14.82, Ph.1.143 codd.; κατὰ τὴν ἐ. during his term as ἐπιστάτης, SIG10 (Samos, vi B.C.); ἐ. ἔργων superintendence of works, X.Mem.1.5.2;ἡ ἐ. μοι ἡ καθ' ἡμέραν 2 Ep.Cor.11.28
; oversight of students, D.H.Comp.1.4. beginning,ἐ. ποιεῖσθαι ἀπὸ.. Plb.1.12.6
; ἡ ἐ. τῆς ἱστορίας introduction, Id.2.71.7; ἀρχὴ καὶ ἐ. τῆς κατασκευῆς method of setting about construction, Ph.Bel.50.35.5. scum on urine, Hp.Aph.7.35.6. position in rear, τὴν ἐ. ἐπ' ἀλλήλοις ἔχειν one behind the other, of ships, Plb.1.26.12.7. = μέρος τι τῆς νεώς, Hsch.; cf. ἐπιστατήρ.III. onset, LXX 2 Ma.6.3;ὄχλου Act.Ap.24.12
(nisi leg. ἐπισύστασις).IV. ἐν ἐπιστάσει καὶ ἐν ἀπολογισμῷ, perh. of land of which the rent has been raised, PTeb.61 (a).163 (ii B.C.), al.Greek-English dictionary (Αγγλικά Ελληνικά-λεξικό) > ἐπίστασις
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64 ἱστορικός
A exact, precise, scientific, ; τῶν παρὰ τοῖς ἄλλοις εὑρημένων ἱ. well-informed respecting.. or able to recount.., Arist.Rh. 1359b32;ἀποδείξεις ἱστορικῶν Phld.D.1.23
. Adv. - κῶς scientifically, accurately, Arist.GA 757b35; by personal observation,κατ αμαθεῖν τι Gal.14.275
.II belonging to history, historical,πραγματεῖαι D.H.1.1
; τύπος (opp. λογικός) Id.Dem.24;ἀναγραφή Id.1.4
;γράμματα Plu.Them.13
: Subst., historian, Arist. Po. 1451b1, Aristeas 31, Phld.Rh.1.200S., D.H.4.6, D.S.1.6, etc.;- ώτατος βασιλέων Plu.Sert.9
. Adv.-κῶς, ἱ. καὶ διδασκαλικῶς Str. 1.1.10
; ἱ. καὶ ἐξηγητικῶς, opp. ἀποδεικτικῶς, Phld.Mus.p.12 K.; but ἐξηγητικώτερον ἢ -ώτερον, of Aristotle's method in HA, Antig.Mir.60.Greek-English dictionary (Αγγλικά Ελληνικά-λεξικό) > ἱστορικός
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65 ошибка
error
(погрешность)
-, аэродинамическая (установки приемника статического давления) — position error
-, вероятная — probable error
- в пилотировании — pilot error
- в путевом угле (d пу) — track angle error (тке)
- в технике пилотирования — pilot error
- высотомера, аэродинамическая (d на) — altimeter position error
- выставки в азимуте (акселерометра, гироскопа) — azimuth alignment error
-, инструментальная — instrument error
-, карданная (гироузла) — gimbal error
- контрольных сумм памяти вычислителя — (computer) memory checksum error
- летчика — pilot's error
-, методическая (высотомера)
обусловлена несовпадением фактич. состояния атмосферы с данными, положенными в основу расчета шкалы. — measurement-method error
- подвеса (гироскопа) — gimbal error
- путевого угла — track angle error (тке)
-, систематическая (погрешность) — systematic error
-, случайная — accidental error
ошибка (или погрешность). неопределенная по величине и природе, в появлении которой нет закономерности. противоположность "систематической". — in experimental observations, an error which does not always occur when an observation is repeated under the same conditions. contrast systematic error.
-, среднеквадратичная (погрешность) — mean-square error
величина, квадрат которой равен сумме квадратов отдельных погрешностей, деленной на число этих погрешностей. — the quantity whose square is equal to the sum of the squares of the individual errors divided by the number of those errors.
- указателя воздушной скорости, аэродинамическая — airspeed indicator position error
-, установочная (постоянная девиация магнитного компаса, устраняется поворотом корпуса) — compass installation errorРусско-английский сборник авиационно-технических терминов > ошибка
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66 activity sampling
Opsa work measurement technique used to analyze the activities of employees, machines, or business operations. Activity sampling requires random observations of the amount of time spent on a given activity to be recorded over a fixed period. The results are used to predict the total time spent on each activity and to highlight areas in need of quality, efficiency, or effectiveness improvement. -
67 Berthollet, Claude-Louis
SUBJECT AREA: Textiles[br]b. 9 November 1748 Talloise, near Lake Annecy, Franced. 6 November 1822 Arceuil, France[br]French chemist who made important innovations in textile chemistry.[br]Berthollet qualified as a medical doctor and pursued chemical researches, notably into "muriatic acid" (chlorine), then recently discovered by Scheele. He was one of the first chemists to embrace the new system of chemistry advanced by Lavoisier. Berthollet held several official appointments, among them inspector of dye works (from 1784) and Director of the Manufacture Nationale des Gobelins. These appointments enabled him to continue his researches and embark on a series of publications on the practical applications of chlorine, prussic acid (hydrocyanic acid) and ammonia. He clearly demonstrated the benefits of the French practice of appointing scientists to the state manufactories.There were two practical results of Berthollet's studies of chlorine. First, he produced a powerful explosive by substituting potassium chlorate, formed by the action of chlorine on potash, in place of nitre (potassium nitrate) in gunpowder. Then, mainly from humanitarian motives, he followed up Scheele's observation of the bleaching properties of chlorine water, in order to release for cultivation the considerable areas of land that had hitherto been required by the old bleaching process. The chlorine method greatly speeded up bleaching; this was a vital factor in the revolution in the textile industries.After a visit to Egypt in 1799, Berthollet carried out many experiments on dyeing, seeking to place this ancient craft onto a scientific basis. His work is summed up in his Eléments de l'art de la teinture, Paris, 1791.[br]Bibliography1791, Eléments de Van de la teinture, Paris (covers his work on dyeing).Berthollet published two books of importance in the early history of physical chemistry: 1801, Recherches sur les lois de l'affinité, Paris.1803, Essai de statique chimique, Paris.Annales de Chimie.Further ReadingE.F.Jomard, 1844, Notice sur la vie et les ouvrages de Claude-Louis Berthollet, Annecy.E.Farber, 1961, Great Chemists, New York: Interscience, pp. 32–4 (includes a short biographical account).LRDBiographical history of technology > Berthollet, Claude-Louis
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68 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
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69 Hales, Stephen
[br]b. September 1677 Bekesbourne, Kent, Englandd. 4 January 1761 Teddington, Middlesex, England[br]English physiologist and inventor, author of the first account of the measurement of blood pressure.[br]After attending Corpus Christi, Cambridge, he was admitted as a Fellow in 1702. During the ensuing years he was engaged in botanical, astronomical and chemical activities and research. He was appointed Minister at Teddington, Middlesex, in 1708 and remained in that post until his death. During these years, he continued to engage in a wide range of botanical and physiological activities involving studies of the nutrition of plants, blood pressure and the flow of blood in animals. He was also the inventor of improved ventilation by systems of partition and ducting, and the production of fresh water by distillation for ships at sea. The wide range of his interests did not preclude his care for his pastoral duties, and he was involved in the education of the Prince of Wales's children, although he declined a canonry of Windsor. In his writings he set a standard for the scientific method as related to principles based on facts and observation.[br]Principal Honours and DistinctionsFRS 1718. Copley Medal 1739. Académie Française 1753. Founding Member, Society of Arts; Vice-President 1755.Bibliography1727, Vegetable Statisticks, London. 1733, Statistical Essays, London.1734, A Friendly Admonition to the Drinkers of Brandy, London.1736, Distilled Spirituous Liquors the Bane of the Nation, London. 1739, Philosophical Experiments, London.1740, An Account of Some Experiments and Observations, London.1743, 1758, A Description of Ventilators, London.1756, An Account of a Useful Discovery to Distill, London.MG -
70 Mond, Ludwig
SUBJECT AREA: Chemical technology[br]b. 7 March 1839 Cassel, Germanyd. 11 December 1909 London, England[br]German (naturalized English) industrial chemist.[br]Born into a prosperous Jewish merchant family, Mond studied at the Polytechnic in Cassel and then under the distinguished chemists Hermann Kolbe at Marburg and Bunsen at Heidelberg from 1856. In 1859 he began work as an industrial chemist in various works in Germany and Holland. At this time, Mond was pursuing his method for recovering sulphur from the alkali wastes in the Leblanc soda-making process. Mond came to England in 1862 and five years later settled permanently, in partnership with John Hutchinson \& Co. at Widnes, to perfect his process, although complete success eluded him. He became a naturalized British subject in 1880.In 1872 Mond became acquainted with Ernest Solvay, the Belgian chemist who developed the ammonia-soda process which finally supplanted the Leblanc process. Mond negotiated the English patent rights and set up the first ammoniasoda plant in England at Winnington in Cheshire, in partnership with John Brunner. After overcoming many difficulties by incessant hard work, the process became a financial success and in 1881 Brunner, Mond \& Co. was formed, for a time the largest alkali works in the world. In 1926 the company merged with others to form Imperial Chemical Industries Ltd (ICI). The firm was one of the first to adopt the eight-hour day and to provide model dwellings and playing fields for its employees.From 1879 Mond took up the production of ammonia and this led to the Mond producer-gas plant, patented in 1883. The process consisted of passing air and steam over coal and coke at a carefully regulated temperature. Ammonia was generated and, at the same time, so was a cheap and useful producer gas. Mond's major discovery followed the observation in 1889 that carbon monoxide could combine with nickel in its ore at around 60°C to form a gaseous compound, nickel carbonyl. This, on heating to a higher temperature, would then decompose to give pure nickel. Mond followed up this unusual way of producing and purifying a metal and by 1892 had succeeded in setting up a pilot plant to perfect a large-scale process and went on to form the Mond Nickel Company.Apart from being a successful industrialist, Mond was prominent in scientific circles and played a leading role in the setting up of the Society of Chemical Industry in 1881. The success of his operations earned him great wealth, much of which he donated for learned and charitable purposes. He formed a notable collection of pictures which he bequeathed to the National Gallery.[br]Principal Honours and DistinctionsFRS 1891.Bibliography1885, "On the origin of the ammonia-soda process", Journal of the Society of Chemical Industry 4:527–9.1895. "The history of the process of nickel extraction", Journal of the Society of Chemical Industry 14:945–6.Further ReadingJ.M.Cohen, 1956, The Life of Ludwig Mond, London: Methuen. Obituary, 1918, Journal of the Chemical Society 113:318–34.F.C.Donnan, 1939, Ludwig Mond 1839–1909, London (a valuable lecture).LRD -
71 экстремальное значение
Русско-английский новый политехнический словарь > экстремальное значение
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72 крайний
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73 экстремальное значение
Русско-английский словарь по информационным технологиям > экстремальное значение
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74 крайний
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75 определение
блок автоматического определения дальностиautomatic range unitбортовая система определения массы и центровкиonboard weight and balance systemвизир для определения сносаdrift sight(в полете) визуальное определение местоположенияvisual fixingзамер с целью определения положенияspot measurementконтрольная точка для определения местоположенияmetering fixметод определения положенияfixing methodопределение дальностиrangingопределение дальности радиолокационным методомradar rangingопределение местонахождения воздушного судна по звездамastrofixопределение местоположения1. fixing2. position fixing определение местоположения по наземным ориентирамvisual ground fixingопределение местоположения по пеленгу одной станцииone-station fixingопределение местоположения по пройденному пути и курсуrange-bearing fixingопределение местоположения с помощью радиосредстваradio fixingопределение положения1. position-finding2. position indication определение положения счислением путиreckoningошибка при визуальном определении местоположенияobservation errorрадиолокационный метод определения параметров ветраrawinсветовое устройство для определения цветоощущенияcolor perception lanternсредства определения траекторииtrack-defining aidsточное определение положенияspotting(в процессе полета) точность определения местоположенияposition accuracy
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