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21 Ausgangslösung
Deutsch-Englisch Wörterbuch der Elektrotechnik und Elektronik > Ausgangslösung
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22 Приближение
Iterations of this form converge to the solution for an arbitrary initial guessРусско-английский словарь по прикладной математике и механике > Приближение
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23 заколдованный круг
книжн.1) (положение, из которого трудно найти выход) a vicious circle; hopeless (desperate) situation- Гостиные, сплетни, балы, тщеславие, ничтожество - вот заколдованный круг, из которого я не могу выйти. (Л. Толстой, Война и мир) — 'Parlours, gossip, balls, vanity, pettiness - this is the vicious circle which I cannot break.'
2) (вид логической ошибки, несуразность) a vicious circle; a situation in which the solution produces a result that brings back the initial problemСледовательно, опровержение совершенно нелепо, но, увы, совершенно необходимо. Следовательно - заколдованный круг. (Л. Жуховицкий, Остановиться, оглянуться...) — Consequently, a refutation was absurd but, alas, vital all the same. Consequently, one was up against a vicious circle.
Русско-английский фразеологический словарь > заколдованный круг
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24 ἀμνός
Grammatical information: m. f.Meaning: `lamb' (S.).Other forms: ἀμνόα πρόβατον, οἱ δε ἀμνός H., unreliable.Compounds: ἀμνοκῶν `stupid like a sheep' ( κοέω) Taillardat, Images 453. ? ἀμνοκόμος (Latte for - κόπος). ποιμήν H.Derivatives: Special feminine forms: ἀμνή, -ά (Cos etc..), ἀμνίς (Theoc.). Adj.: ἀμνεῖος (Theoc.); from there ἀμνεῖον, ἀμνίον, also - ός, `inner membrane surrounding the foetus' (Emp.).Origin: IE [Indo-European] [9] *h₂e\/ogʷno- `lamb'Etymology: Identical with Lat. agnus ( avillus). OIr. ūan with initial o- (* h₂o-), OCS agnę (with long vowel and acute from Winter's Law). However OE ēanian, Engl. yean, Dutch oonen from PGm. * aunōn seems to suppose - gʷʰ- (but there must be another solution). *o- from ovis? Schrijver Lar. Lat. 39, 438.Page in Frisk: 1,93-94Greek-English etymological dictionary (Ελληνικά-Αγγλικά ετυμολογική λεξικό) > ἀμνός
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25 ὄβριμος
Grammatical information: adj.Meaning: `strong, mighty' (Il.).Other forms: (also ὄμβριμος with anticipation of the nasal; cf. Schwyzer 257 and below).Compounds: As 1. member e.g. in ὀβριμο-πάτρη f. surname of Athena a.o. `having a mighty father'; on the formation Sommer Nominalkomp. 144 f. w. lit.Origin: PG [a word of Pre-Greek origin]Etymology: With ὄβριμος one compares since long (Curtius 532 f. etc.) some words without initial ὀ- and with long stemvowel: βριμός μέγας, χαλεπός H., βριμάομαι ' χαλεπαίνω', Βριμώ f. surname of Hekate and Persephone a.o. (s. βρίμη), with further βρίθω, βριαρός. The shortness of the ι in ὄβριμος could have been taken from ἄλκιμος and other nearly synonymous adj., but the ὀ- gives serious problems: neither a prefix (Brugmann Grundr.2 II: 2, 817) nor a prothetic vowel (Meillet BSL 27, 129ff.) gives a solution; cf. Austin Lang. 17, 87. To be rejected Arbenz 24f. with Fay ClassRev. 11, 89 (to ὄμβρος); a not convincing Slavic combination (Pol. olbrzym `giant' from older obrzym) by Machek Zeitschr. für Slavistik 1 (1956) 38. -- Older lit. in Bq. - The variation ὀβρι-\/ βρι- is prob. Pre-Greek (Furnée 246 etc.).Page in Frisk: 2,345Greek-English etymological dictionary (Ελληνικά-Αγγλικά ετυμολογική λεξικό) > ὄβριμος
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26 Girard, Philippe de
SUBJECT AREA: Textiles[br]b. 1775 Franced. 1845[br]French developer of a successful flax-heckling machine for the preparation of fibres for power-spinning.[br]Early drawing and spinning processes failed to give linen yarn the requisite fineness and homogeneity. In 1810 Napoleon offered a prize of a million francs for a successful flax-spinning machine as part of his policy of stimulating the French textile industries. Spurred on by this offer, Girard suggested three improvements. He was too late to win the prize, but his ideas were patented in England in 1814, although not under his own name. He proposed that the fibres should be soaked in a very hot alkaline solution both before drawing and immediately before they went to the spindles. The actual drawing was to be done by passing the dried material through combs or gills that moved alternately; gill drawing was taken up in England in 1816. His method of wet spinning was never a commercial success, but his processes were adopted in part and developed in Britain and spread to Austria, Poland and France, for his ideas were essentially good and produced a superior product. The successful power-spinning of linen thread from flax depended primarily upon the initial processes of heckling and drawing. The heckling of the bundles or stricks of flax, so as to separate the long fibres of "line" from the shorter ones of "tow", was extremely difficult to mechanize, for each strick had to be combed on both sides in turn and then in the reverse direction. It was to this problem that Girard next turned his attention, inventing a successful machine in 1832 that subsequently was improved in England. The strick was placed between two vertical sheets of combs that moved opposite to each other, depositing the tow upon a revolving cylinder covered with a brush at the bottom of the machine, while the holder from which the strick was suspended moved up and down so as to help the teeth to penetrate deeper into the flax. The tow was removed from the cylinder at the bottom of the machine and taken away to be spun like cotton. The long line fibres were removed from the top of the machine and required further processing if the yarn was to be uniform.When N.L.Sadi Carnot's book Réflexions sur la puissance motrice du feu, was published in 1824, Girard made a favourable report on it.[br]Further ReadingM.Daumas (ed.), 1968, Histoire générale des techniques, Vol. III: L'Expansion duMachinisme, Paris.C.Singer (ed.), 1958, A History of'Technology, Vol. IV, Oxford: Clarendon Press. T.K.Derry and T.I.Williams, 1960, A Short History of Technology from the EarliestTimes to AD 1900, Oxford.W.A.McCutcheon, 1966–7, "Water power in the North of Ireland", Transactions of the Newcomen Society 39 (discusses the spinning of flax and mentions Girard).RLH -
27 Whitney, Eli
[br]b. 8 December 1765 Westborough, Massachusetts, USAd. 8 January 1825 New Haven, Connecticut, USA[br]American inventor of the cotton gin and manufacturer of firearms.[br]The son of a prosperous farmer, Eli Whitney as a teenager showed more interest in mechanics than school work. At the age of 15 he began an enterprise business manufacturing nails in his father's workshop, even having to hire help to fulfil his orders. He later determined to acquire a university education and, his father having declined to provide funds, he taught at local schools to obtain the means to attend Leicester Academy, Massachusetts, in preparation for his entry to Yale in 1789. He graduated in 1792 and then decided to study law. He accepted a position in Georgia as a tutor that would have given him time for study; this post did not materialize, but on his journey south he met General Nathanael Greene's widow and the manager of her plantations, Phineas Miller (1764–1803). A feature of agriculture in the southern states was that the land was unsuitable for long-staple cotton but could yield large crops of green-seed cotton. Green-seed cotton was difficult to separate from its seed, and when Whitney learned of the problem in 1793 he quickly devised a machine known as the cotton gin, which provided an effective solution. He formed a partnership with Miller to manufacture the gin and in 1794 obtained a patent. This invention made possible the extraordinary growth of the cotton industry in the United States, but the patent was widely infringed and it was not until 1807, after amendment of the patent laws, that Whitney was able to obtain a favourable decision in the courts and some financial return.In 1798 Whitney was in financial difficulties following the failure of the initial legal action against infringement of the cotton gin patent, but in that year he obtained a government contract to supply 10,000 muskets within two years with generous advance payments. He built a factory at New Haven, Connecticut, and proposed to use a new method of manufacture, perhaps the first application of the system of interchangeable parts. He failed to supply the firearms in the specified time, and in fact the first 500 guns were not delivered until 1801 and the full contract was not completed until 1809.In 1812 Whitney made application for a renewal of his cotton gin patent, but this was refused. In the same year, however, he obtained a second contract from the Government for 15,000 firearms and a similar one from New York State which ensured the success of his business.[br]Further ReadingJ.Mirsky and A.Nevins, 1952, The World of Eli Whitney, New York (a good biography). P.J.Federico, 1960, "Records of Eli Whitney's cotton gin patent", Technology and Culture 1: 168–76 (for details of the cotton gin patent).R.S.Woodbury, 1960, The legend of Eli Whitney and interchangeable parts', Technology and Culture 1:235–53 (challenges the traditional view of Eli Whitney as the sole originator of the "American" system of manufacture).See also Technology and Culture 14(1973):592–8; 18(1977):146–8; 19(1978):609–11.RTS
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