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81 grand
grand, e [gʀɑ̃, gʀɑ̃d]1. adjectivea. ( = de haute taille) tall• quand il sera grand [enfant] when he grows up• tu es grand/grande maintenant you're a big boy/girl nowd. (en nombre, en quantité) [vitesse, poids, valeur, puissance] great ; [nombre, quantité] large ; [famille] large, bige. ( = intense) [bruit, cri] loud ; [froid, chaleur] intense ; [vent] strong ; [danger, plaisir, pauvreté] greatf. ( = riche, puissant) [pays, firme, banquier, industriel] leadingg. ( = important) great ; [ville, travail] big• je t'annonce une grande nouvelle ! I've got some great news!h. ( = principal) main• la grande difficulté consiste à... the main difficulty lies in...i. (intensif) [travailleur, collectionneur, ami, rêveur] great ; [buveur, fumeur] heavy ; [mangeur] bigj. ( = remarquable) greatk. ( = de gala) [réception, dîner] grandl. ( = noble) [âme] noble ; [pensée, principe] loftym. ( = exagéré) faire de grandes phrases to voice high-flown sentimentsn. ( = beaucoup de) cela te fera (le plus) grand bien it'll do you the world of good• grand bien vous fasse ! much good may it do you!2. adverb3. masculine nouna. ( = élève) senior boyb. (terme d'affection) viens, mon grand come here, sonc. ( = personne puissante) les grands de ce monde men in high places4. feminine nouna. ( = élève) senior girl5. compounds━━━━━━━━━━━━━━━━━The grandes écoles are competitive-entrance higher education establishments where engineering, business administration and other subjects are taught to a very high standard. The most prestigious include « l'École Polytechnique » (engineering), the three « Écoles normales supérieures » (arts and sciences), « l'ÉNA » (the civil service college), and « HEC » (business administration).Pupils prepare for entrance to the grandes écoles after their « baccalauréat » in two years of « classes préparatoires ». → CLASSES PRÉPARATOIRES CONCOURS ÉCOLE NATIONALE D'ADMINISTRATION* * *
1.
grande gʀɑ̃, gʀɑ̃d adjectif1) ( de dimensions importantes) ( en hauteur) tall; (en longueur, durée) long; ( en largeur) wide; (en étendue, volume) big2) (nombreux, abondant) large, biglaver à grande eau — to wash [something] in plenty of running water [légumes]; to wash [something] down [sol]
3) ( à un degré élevé) [rêveur, collectionneur, ami] great; [tricheur, joueur] big; [buveur, fumeur] heavy4) ( important) [découverte, expédition, nouvelle] great; [date] important; [rôle] major; [problème, décision] bigla grande majorité — the great ou vast majority
5) ( principal) main6) ( de premier plan) [société, marque] leading7) (brillant, remarquable) [peintre, vin, cause] great; [cœur, âme] nobleLouis le Grand — Louis the Great; esprit
les grandes classes — École the senior forms GB, the upper classes US
9) ( qualifiant une mesure) [hauteur, longueur, distance, valeur] great; [pointure, quantité, étendue] large; [vitesse] high10) (extrême, fort) [bonté, amitié, danger, intérêt] great; [bruit] loud; [froid] severe; [chaleur] intense; [vent] strong, high; [tempête] big, violentà grands cris — loudly; cas, remède
11) ( de rang social élevé) [famille, nom] great12) ( grandiose) [réception, projet] grand13) ( emphatique) [mot] big; [phrase] high-soundinget voilà, tout de suite les grands mots — there you go, straight off the deep end
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adverbe wideouvrir grand ses oreilles — fig to prick up one's ears
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nom masculinles cinq grands — Politique the Big Five
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en grand locution adverbialePhrasal Verbs:* * *ɡʀɑ̃, ɡʀɑ̃d grand, -e1. adj1) (= de haute taille) tallIl est grand pour son âge. — He's tall for his age.
2) (= aîné)C'est sa grande sœur. — She's his big sister.
3) (= adulte)Il est assez grand pour... — He's old enough to...
4) (= gros, vaste, large) big, large5) (importance, stature) greatC'est un grand ami à moi. — He's a great friend of mine.
les grandes lignes CHEMINS DE FER — the main lines
6) (ampleur, degré)les grands blessés; Les grands blessés ont été emmenés à l'hôpital en hélicoptère. — The severely injured were taken to hospital by helicopter.
7) (intensif)Ça te fera beaucoup de bien d'être au grand air. — It'll be very good for you to be out in the open air.
2. adv3. nm/f1) (= élève, enfant) big boy, big girlIl est chez les grands maintenant. — He's in the senior school now.
C'est une grande, elle peut y aller seule. — She's a big girl now, she can go on her own.
2) (= personnage)4. nm* * *A adj1 ( de dimensions importantes) ( en hauteur) [personne, arbre, tour, cierge] tall; (en longueur, durée) [bras, enjambée, promenade, voyage] long; ( en largeur) [angle, marge] wide; (en étendue, volume) [lac, ville, salle, trou, édifice, paquet] large, big; [tas, feu] big; ( démesuré) [pied, nez, bouche] big; un homme (très) grand a (very) tall man; un grand homme brun, un homme grand et brun a tall dark man; plus grand que nature larger than life; ouvrir de grands yeux to open one's eyes wide;2 (nombreux, abondant) [famille, foule] large, big; [fortune] large; grande braderie big sale; pas grand monde not many people; faire de grandes dépenses to spend a lot of money; il fait grand jour it's broad daylight; laver à grande eau to wash [sth] in plenty of running water [légumes]; to wash [sth] down [sol]; à grand renfort de publicité with much publicity;3 ( à un degré élevé) [rêveur, collectionneur, travailleur, ami, ennemi, pécheur] great; [tricheur, joueur, lâcheur, idiot] big; [buveur, fumeur] heavy; grand amateur de ballet great ballet lover; c'est un grand timide he's very shy; les grands malades very sick people; c'est un grand cardiaque he has a serious heart condition;4 ( important) [découverte, migration, expédition, événement, nouvelle, honneur] great; [date] important; [rôle] major; [problème, décision] big; ( principal) main; c'est un grand jour pour elle it's a big day for her; une grande partie de la maison a large part of the house; une grande partie des habitants many of the inhabitants; la grande majorité the great ou vast majority; ⇒ scène;5 ( principal) main; le grand escalier the main staircase; le grand problème/obstacle the main ou major problem/obstacle; les grands axes routiers the main ou trunk GB roads; les grands points du discours the main points of the speech; les grandes lignes d'une politique the broad lines of a policy;6 ( de premier plan) Écon, Pol [pays, société, industriel, marque] leading; les grandes industries the big industries;7 (brillant, remarquable) [peintre, œuvre, civilisation, vin, cause] great; [cœur, âme] noble; c'est un grand homme he's a great man; les grands écrivains great authors; un grand nom de la musique a great musician; un grand monsieur du théâtre a great gentleman of the stage; Louis/Pierre le Grand Louis/Peter the Great; les grands noms du cinéma/de la littérature indienne the big names of the cinema/of Indian literature; de grande classe [produit] high-class; [exploit] admirable; ⇒ esprit;8 ( âgé) [frère, sœur] elder; [élève] senior GB, older; ( adulte) grown-up; mon grand frère my elder brother; les grandes classes Scol the senior forms GB, the upper classes US; quand il sera grand when he grows up; mes enfants sont grands my children are quite old; une grande fille comme toi! a big girl like you!; 12 ans! tu es assez grand pour te débrouiller 12 years old! you're old enough to cope;9 ( qualifiant une mesure) [hauteur, longueur, distance, poids, valeur, âge] great; [dimensions, taille, pointure, quantité, nombre, étendue] large; [vitesse] high; [kilomètre, mois, heure] good; il est grand temps que tu partes it's high time you were off ou you went;10 (intense, extrême, fort) [bonté, lâcheté, pauvreté, amitié, chagrin, faim, danger, différence, intérêt] great; [bruit] great, loud; [froid] severe; [chaleur] intense; [vent] strong, high; [tempête] big, violent; avec grand plaisir with great ou much pleasure; dans le plus grand secret in great secrecy; d'une grande bêtise/timidité very ou extremely stupid/shy; à ma grande honte/surprise much to my shame/surprise; sans grand espoir/enthousiasme without much hope/enthusiasm; sans grande importance not very important; il n'y a pas grand mal à cela/à faire there isn't much harm in that/in doing; avoir grand faim/soif to be very hungry/thirsty; avoir grand besoin de to be badly in need of; ça te ferait le plus grand bien it would do you a world of good; à grands cris loudly; ⇒ cas, remède;11 ( de rang social élevé) [famille, nom] great; grande dame great lady; la grande bourgeoisie the upper middle class;12 ( grandiose) [réception] grand; grands projets grand designs; avoir grande allure, avoir grand air to look very impressive;13 ( emphatique) [mot] big; [phrase] high-sounding; un grand merci a big thank you; faire de grands gestes to wave one's arms about; et voilà, tout de suite les grands mots there you go, straight off the deep end.B nm,f1 ( enfant) big boy/girl; Scol senior GB ou older pupil; il a fait ça tout seul comme un grand he did it all by himself like a big boy; il fait le ménage comme un grand he does the housework like a grown-up; pour les grands et les petits for old and young alike;C adv wide; ouvrir grand la bouche to open one's mouth wide; ouvrir tout grand les bras to throw one's arms open; les fenêtres sont grand(es) ouvertes the windows are wide open; ouvrir la porte toute grande to open the door wide; ouvrir grand ses oreilles fig to prick up one's ears; ouvrir tout grand son cœur fig to open one's heart; les bottes chaussent grand the boots are large-fitting; leurs vêtements taillent grand their clothes are cut on the large side; voir grand fig to think big.D nm ( pays) big power; ( entreprise) leader, big name; les grands de ce monde the great and the good; Pol the world's leaders; les cinq grands Pol the Big Five; les grands de l'automobile the top car manufacturers; c'est un grand de la publicité he's big in advertising.E en grand loc adv [ouvrir] wide, completely; faire de l'élevage en grand to breed animals on a large scale; quand ils reçoivent, ils font les choses en grand when they entertain they do things on the grand scale or they really go to town○.grand argentier Hist royal treasurer; hum keeper of the nation's purse, Finance minister; le grand art alchemy; grand banditisme organized crime; grand bassin ( de piscine) main pool; Anat upper pelvis; grand cacatois main royal sail; grand caniche standard poodle; le grand capital Écon big money, big investors pl; grand commis de l'État top civil servant; grand coq de bruyère capercaillie; grand corbeau raven; grand couturier couturier; grand débutant absolute beginner; grand duc Zool eagle owl; grand écart Danse, Sport splits (sg); faire le grand écart to do the splits; le grand écran the big screen; grand électeur ( en France) elector who votes in the elections for the French Senate; ( aux États-Unis) presidential elector; grand ensemble high-density housing complex; la vie dans les grands ensembles high-rise living; grand d'Espagne Spanish grandee; grand foc outer jib; grand frais Météo moderate gale; grand hunier main topsail; grand hunier fixe lower main topsail; grand hunier volant upper main topsail; grand invalide civil, GIC civilian who is registered severely disabled; grand invalide de guerre, GIG Prot Soc ex-serviceman who is registered severely disabled; le grand large Naut the high seas (pl); grand magasin Comm department store; grand maître ( aux échecs) grand master; grand maître de l'ordre des Templiers Hist Grand Master of the Knights Templar; grand mât Naut mainmast; le grand monde high society; le Grand Nord Géog the Far North; Grand Œuvre Great Work; grand officier de la Légion d'Honneur high-ranking officer of the Legion of HonourGB; le Grand Orient the Grand Lodge of France; grand panda giant panda; Grand Pardon Day of Atonement; grand patron Méd senior consultant GB, head doctor US; grand perroquet Naut main topgallant sail; grand prêtre Relig, fig high priest; grand prix Courses Aut, Sport grand prix; le grand public the general public; Comm produit grand public consumer product; grand quart Naut six-hour watch; Grand quartier général, GQG Mil General Headquarters, GHQ; grand quotidien Presse big national daily; grand roque Jeux ( aux échecs) castling long; le Grand Siècle Hist the 17th century (in France); grand teint colourfastGB; grand tétras capercaillie; grand tourisme Courses Aut, Aut GT, gran turismo; le Grand Turc the Sultan; grand veneur Chasse master of the hounds; grande Armée Hist Grande Armée (Napoleon's army); grande Baie Australienne Géog Great Australian Bight; la grande banlieue the outer suburbs (pl); Grande Barrière (de Corail) Géog Great Barrier Reef; la grande bleue the sea; la grande cuisine Culin haute cuisine; grande distribution Écon volume retailing; grand école higher education institution; la Grande Guerre Hist the First World War; grande gueule○ loud mouth○; grande hune Naut maintop; la grande muette the army; la grande muraille de Chine Géog the Great Wall of China; grande personne grown-up, adult; la grande presse Presse the popular dailies (pl); grande puissance Pol superpower; grande roue ( de foire) big wheel GB, Ferris wheel US; grande série Comm mass production; fabriqué en grande série mass-produced; grande surface Comm supermarket; grandes eaux fountains; fig ( pleurs) waterworks; dès qu'on la gronde, ce sont les grandes eaux the minute you tell her off, she turns on the waterworks; grandes lignes Rail main train routes; grandes marées spring tides; grandes ondes Radio long wave (sg); Grandes Plaines Géog Great Plains; les grands blessés the seriously injured; grands corps de l'État Admin senior branches of the civil service; grands espaces Écol open spaces; grands fauves Zool big cats; grands fonds Naut ocean depths; les grands froids the cold of winter; Grands Lacs Géog Great Lakes; grands singes Zool great apes; ⇒ école, voyage.ⓘ Grande école A prestigious third-level institution where admission is usually by competitive entrance examination or concours. Places are much sought after as they are widely considered to guarantee more promising career prospects than the standard university institutions. Many grandes écoles specialize in particular disciplines or fields of study, e.g. ENA, Sciences Po, etc.( féminin grande) [grɑ̃, grɑ̃d] (devant nom masculin commençant par voyelle ou h muet [grɑ̃t]) adjectifA.[ASPECT QUANTITATIF]grand A/B/C capital A/B/Cune grande tour a high ou tall towerun grand fleuve a long ou big riveravoir de grands pieds to have big ou large feetmarcher à grands pas to walk with great ou long strides3. [d'un certain âge - être humain] big[aîné - frère, sœur] big4. [qui dure longtemps] long5. [intense, considérable] greatpendant les grandes chaleurs in high summer, in ou at the height of summerun grand incendie a major ou great firela grande majorité de the great ou vast majority ofils plongent à une grande profondeur they dive very deep ou to a great depth7. [entier]elle m'a fait attendre une grande heure/semaine she made me wait a good hour/a good week9. GÉOGRAPHIE10. ZOOLOGIEB.[ASPECT QUALITATIF]les grands problèmes de notre temps the main ou major ou key issues of our timece sont de grands amis they're great ou very good friendsles grands blessés/brûlés/invalides the seriously wounded/burned/disabled3. [puissant, influent - banque] top ; [ - industriel] top, leading, major ; [ - propriétaire, famille] important ; [ - personnage] great4. [dans une hiérarchie]les grands dignitaires du régime the leading ou important dignitaries of the regime5. [noble]avoir grand air ou grande allure to carry oneself well, to be imposing6. [généralementéreux]il a un grand cœur he's big-hearted, he has a big heart7. [exagéré] biggrands mots high-sounding words, high-flown language8. [fameux, reconnu] greatun grand journaliste a great ou top journalistil ne descend que dans les grands hôtels he only stays in the best hotels ou the most luxurious hotelsle grand film de la soirée tonight's big ou feature filmles grandes dates de l'histoire de France the great ou most significant dates in French history9. HISTOIRE10. [omnipotent, suprême] greatC.[EN INTENSIF]sans grand enthousiasme/intérêt without much enthusiasm/interestsa grande fierté, c'est son jardin he's very proud of ou he takes great pride in his gardenun grand merci à ta sœur lots of thanks to ou a big thank you to your sistercette cuisine a grand besoin d'être nettoyée this kitchen really needs ou is in dire need of a cleantoute la famille au grand complet the whole family, every single member of the familyjamais, au grand jamais je n'accepterai never in a million years will I acceptà sa grande surprise much to his surprise, to his great surprise————————, grande [grɑ̃, grɑ̃d] (devant nom masculin commençant par voyelle ou h muet [grɑ̃t]) nom masculin, nom féminin1. [enfant - d'un certain âge][en appellatif]merci mon grand! thanks, son!allons, ma grande, ne pleure pas! come on now, love, don't cry!comme un grand: je me débrouillerai tout seul, comme un grand/toute seule, comme une grande I'll manage on my own, like a big boy/a big girl[en appellatif]alors, ma grande, tu as pu te reposer un peu? well dear, did you manage to get some rest?[personne de grande taille]pour la photo, les grands se mettront derrière for the photo, tall people ou the taller people will stand at the back————————adverbe1. [vêtement]2. (locution)3. [largement]4. ART————————nom masculin1. PHILOSOPHIE → link=infiniment infiniment2. [entrepreneur, industriel]les grands de l'automobile the major ou leading car manufacturers————————grands nom masculin plurielÉCONOMIE & POLITIQUEles grands [les puissants] the rich (and powerful)les grands de ce monde the people in (positions of) power ou in high places————————en grand locution adverbiale[complètement] on a large scaleil faut aérer la maison en grand the house needs a thorough ou good airinggrande école nom féminingrand ensemble nom masculingrande surface nom fémininThe grandes écoles are relatively small and highly respected higher education establishments. Admission is usually only possible after two years of intensive preparatory studies and a competitive entrance examination. Most have close links with industry. The grandes écoles include l'École des hautes études commerciales or HEC (management and business), l'École polytechnique or l'X (engineering) and l'École normale supérieure (teacher training). -
82 entità
entità s.f.1 (fil.) entity2 ( cosa esistente) entity; being; existence3 (fam.) ( importanza) importance; extent, degree, level, size: entità di un prestito, size of a loan; di scarsa entità, of little importance; danni di lieve entità, slight damage; ci sono state perdite di una certa entità, there have been fairly substantial (o significant) losses; l'entità di un problema, the size of a problem.* * *[enti'ta]sostantivo femminile invariabile1) (dimensione) size, degree, extent; (importanza) importancedi lieve o scarsa entità slight attrib., of little importance; di una certa entità — substantial, considerable
2) (essere, cosa) entity (anche filos.)* * *entità/enti'ta/f.inv.1 (dimensione) size, degree, extent; (importanza) importance; l'entità dei danni the extent of the damage; di lieve o scarsa entità slight attrib., of little importance; di una certa entità substantial, considerable2 (essere, cosa) entity (anche filos.). -
83 веха в истории развития
Веха в истории развития-- It [S.'s work] remains as a most significant milestone in the development of understanding of a complex problem.Русско-английский научно-технический словарь переводчика > веха в истории развития
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84 необходимо сделать гораздо больше
Необходимо сделать гораздо больше-- However, much more needs to be done before a significant impact on the problem is made.Русско-английский научно-технический словарь переводчика > необходимо сделать гораздо больше
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85 одна из проблем, связанных с ..., заключается в том, что
Одна из проблем, связанных с... заключается в том, что-- One problem with this type of metallographic assessment of creep damage is that the conditions of the fatigue test itself are sufficient to produce significant amounts of intergranular surface damage.Русско-английский научно-технический словарь переводчика > одна из проблем, связанных с ..., заключается в том, что
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86 прежде чем эта проблема будет в значительной степени решена
Прежде чем эта проблема будет в значительной степени решена-- However, much more needs to be done before a significant impact on the problem is made.Русско-английский научно-технический словарь переводчика > прежде чем эта проблема будет в значительной степени решена
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87 niema|ły
adj. 1. (spory) [ogród, mieszkanie, odległość] quite a. pretty big, quite a. pretty large; [zyski, koszty] considerable, significant; [zmartwienia, trud] great- pewnie dał łapówkę, i to niemałą he must have given a bribe, and not a small one at that- koszt utrzymania się w Warszawie jest wcale niemały the cost of living in Warsaw is by no means low2. (o dużej wartości) considerable- odziedziczył niemały majątek he inherited a considerable fortune- wziął niemałą pożyczkę z banku he took out a substantial loan at the bank- miał niemałe zarobki na stanowisku prezesa as chairman he earned a sizeable income- kiedyś robił niemałe interesy he used to do big business3. (znaczny) considerable- dawać sobie radę z niemałym trudem to cope with considerable difficulty4. (niebłahy) [problem, kłopot, błąd] seriousThe New English-Polish, Polish-English Kościuszko foundation dictionary > niema|ły
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88 Carreira da Índia
The roundtrip Portugal-India-Portugal voyage during the16th, 17th, and 18th centuries, in the age of sail. Undoubtedly the longest and most arduous of all such sea voyages by sail during the age of European expansion, the Carreira da Índia, including a stay in Goa, Portuguese India, lasted about a year and a half; its scheduling was conditioned by tropical winds, including the Indian Ocean monsoon. The first Carreira da Índia, in effect, was Vasco da Gama's pioneering voyage of 1497-99. Subsequent annual India fleet voyages lasted until the age of steam in the 19th century and were even longer than the similar Spanish voyage, Car-rera de Filipinas, the annual voyage of the Manila galleon across the Pacific to Mexico (1565-1815).The Carreira da Índia, which began with the voyage from Portugal to the Cape of Good Hope, South Africa, and on to western India (Goa), some six or seven months on the way out, with a return voyage of a similar length, covered 9,000-10,000 miles one way and was subject to complex tides, winds, and other weather conditions resulting in numerous shipwrecks. The timing of the India fleet's departure from Portugal was based on the timing of the southwest monsoon, which begins in western India in early June. India-bound fleets left Lisbon, therefore, in time to round the Cape of Good Hope in July, in order to reach Goa by September. The ships on these trade-oriented voyages were usually carracks or galleons of increasingly greater tonnage. Outward-bound fleets included from seven to 14 ships, while homeward-bound fleets often had only half that number. Built often of Indian teak or European pine or oak, the India fleet's ships carried several thousand persons on board. As this seaborne empire aged, however, recruiting skilled, experienced crews of sufficient size was increasingly a problem. There is a significant early modern literature in Portuguese that treats the subject of India fleet shipwrecks and related tragedies. -
89 Empire, Portuguese overseas
(1415-1975)Portugal was the first Western European state to establish an early modern overseas empire beyond the Mediterranean and perhaps the last colonial power to decolonize. A vast subject of complexity that is full of myth as well as debatable theories, the history of the Portuguese overseas empire involves the story of more than one empire, the question of imperial motives, the nature of Portuguese rule, and the results and consequences of empire, including the impact on subject peoples as well as on the mother country and its society, Here, only the briefest account of a few such issues can be attempted.There were various empires or phases of empire after the capture of the Moroccan city of Ceuta in 1415. There were at least three Portuguese empires in history: the First empire (1415-1580), the Second empire (1580-1640 and 1640-1822), and the Third empire (1822-1975).With regard to the second empire, the so-called Phillipine period (1580-1640), when Portugal's empire was under Spanish domination, could almost be counted as a separate era. During that period, Portugal lost important parts of its Asian holdings to England and also sections of its colonies of Brazil, Angola, and West Africa to Holland's conquests. These various empires could be characterized by the geography of where Lisbon invested its greatest efforts and resources to develop territories and ward off enemies.The first empire (1415-1580) had two phases. First came the African coastal phase (1415-97), when the Portuguese sought a foothold in various Moroccan cities but then explored the African coast from Morocco to past the Cape of Good Hope in South Africa. While colonization and sugar farming were pursued in the Atlantic islands, as well as in the islands in the Gulf of Guinea like São Tomé and Príncipe, for the most part the Portuguese strategy was to avoid commitments to defending or peopling lands on the African continent. Rather, Lisbon sought a seaborne trade empire, in which the Portuguese could profit from exploiting trade and resources (such as gold) along the coasts and continue exploring southward to seek a sea route to Portuguese India. The second phase of the first empire (1498-1580) began with the discovery of the sea route to Asia, thanks to Vasco da Gama's first voyage in 1497-99, and the capture of strong points, ports, and trading posts in order to enforce a trade monopoly between Asia and Europe. This Asian phase produced the greatest revenues of empire Portugal had garnered, yet ended when Spain conquered Portugal and commanded her empire as of 1580.Portugal's second overseas empire began with Spanish domination and ran to 1822, when Brazil won her independence from Portugal. This phase was characterized largely by Brazilian dominance of imperial commitment, wealth in minerals and other raw materials from Brazil, and the loss of a significant portion of her African and Asian coastal empire to Holland and Great Britain. A sketch of Portugal's imperial losses either to native rebellions or to imperial rivals like Britain and Holland follows:• Morocco (North Africa) (sample only)Arzila—Taken in 1471; evacuated in 1550s; lost to Spain in 1580, which returned city to a sultan.Ceuta—Taken in 1415; lost to Spain in 1640 (loss confirmed in 1668 treaty with Spain).• Tangiers—Taken in 15th century; handed over to England in 1661 as part of Catherine of Braganza's dowry to King Charles II.• West Africa• Fort/Castle of São Jorge da Mina, Gold Coast (in what is now Ghana)—Taken in 1480s; lost to Holland in 1630s.• Middle EastSocotra-isle—Conquered in 1507; fort abandoned in 1511; used as water resupply stop for India fleet.Muscat—Conquered in 1501; lost to Persians in 1650.Ormuz—Taken, 1505-15 under Albuquerque; lost to England, which gave it to Persia in the 17th century.Aden (entry to Red Sea) — Unsuccessfully attacked by Portugal (1513-30); taken by Turks in 1538.• India• Ceylon (Sri Lanka)—Taken by 1516; lost to Dutch after 1600.• Bombay—Taken in 16th century; given to England in 1661 treaty as part of Catherine of Braganza's dowry for Charles II.• East Indies• Moluccas—Taken by 1520; possession confirmed in 1529 Saragossa treaty with Spain; lost to Dutch after 1600; only East Timor remaining.After the restoration of Portuguese independence from Spain in 1640, Portugal proceeded to revive and strengthen the Anglo- Portuguese Alliance, with international aid to fight off further Spanish threats to Portugal and drive the Dutch invaders out of Brazil and Angola. While Portugal lost its foothold in West Africa at Mina to the Dutch, dominion in Angola was consolidated. The most vital part of the imperial economy was a triangular trade: slaves from West Africa and from the coasts of Congo and Angola were shipped to plantations in Brazil; raw materials (sugar, tobacco, gold, diamonds, dyes) were sent to Lisbon; Lisbon shipped Brazil colonists and hardware. Part of Portugal's War of Restoration against Spain (1640-68) and its reclaiming of Brazil and Angola from Dutch intrusions was financed by the New Christians (Jews converted to Christianity after the 1496 Manueline order of expulsion of Jews) who lived in Portugal, Holland and other low countries, France, and Brazil. If the first empire was mainly an African coastal and Asian empire, the second empire was primarily a Brazilian empire.Portugal's third overseas empire began upon the traumatic independence of Brazil, the keystone of the Lusitanian enterprise, in 1822. The loss of Brazil greatly weakened Portugal both as a European power and as an imperial state, for the scattered remainder of largely coastal, poor, and uncolonized territories that stretched from the bulge of West Africa to East Timor in the East Indies and Macau in south China were more of a financial liability than an asset. Only two small territories balanced their budgets occasionally or made profits: the cocoa islands of São Tomé and Príncipe in the Gulf of Guinea and tiny Macau, which lost much of its advantage as an entrepot between the West and the East when the British annexed neighboring Hong Kong in 1842. The others were largely burdens on the treasury. The African colonies were strapped by a chronic economic problem: at a time when the slave trade and then slavery were being abolished under pressures from Britain and other Western powers, the economies of Guinea- Bissau, São Tomé/Príncipe, Angola, and Mozambique were totally dependent on revenues from the slave trade and slavery. During the course of the 19th century, Lisbon began a program to reform colonial administration in a newly rejuvenated African empire, where most of the imperial efforts were expended, by means of replacing the slave trade and slavery, with legitimate economic activities.Portugal participated in its own early version of the "Scramble" for Africa's interior during 1850-69, but discovered that the costs of imperial expansion were too high to allow effective occupation of the hinterlands. After 1875, Portugal participated in the international "Scramble for Africa" and consolidated its holdings in west and southern Africa, despite the failure of the contra-costa (to the opposite coast) plan, which sought to link up the interiors of Angola and Mozambique with a corridor in central Africa. Portugal's expansion into what is now Malawi, Zambia, and Zimbabwe (eastern section) in 1885-90 was thwarted by its oldest ally, Britain, under pressure from interest groups in South Africa, Scotland, and England. All things considered, Portugal's colonizing resources and energies were overwhelmed by the African empire it possessed after the frontier-marking treaties of 1891-1906. Lisbon could barely administer the massive area of five African colonies, whose total area comprised about 8 percent of the area of the colossal continent. The African territories alone were many times the size of tiny Portugal and, as of 1914, Portugal was the third colonial power in terms of size of area possessed in the world.The politics of Portugal's empire were deceptive. Lisbon remained obsessed with the fear that rival colonial powers, especially Germany and Britain, would undermine and then dismantle her African empire. This fear endured well into World War II. In developing and keeping her potentially rich African territories (especially mineral-rich Angola and strategically located Mozambique), however, the race against time was with herself and her subject peoples. Two major problems, both chronic, prevented Portugal from effective colonization (i.e., settling) and development of her African empire: the economic weakness and underdevelopment of the mother country and the fact that the bulk of Portuguese emigration after 1822 went to Brazil, Venezuela, the United States, and France, not to the colonies. These factors made it difficult to consolidate imperial control until it was too late; that is, until local African nationalist movements had organized and taken the field in insurgency wars that began in three of the colonies during the years 1961-64.Portugal's belated effort to revitalize control and to develop, in the truest sense of the word, Angola and Mozambique after 1961 had to be set against contemporary events in Europe, Africa, and Asia. While Portugal held on to a backward empire, other European countries like Britain, France, and Belgium were rapidly decolonizing their empires. Portugal's failure or unwillingness to divert the large streams of emigrants to her empire after 1850 remained a constant factor in this question. Prophetic were the words of the 19th-century economist Joaquim Oliveira Martins, who wrote in 1880 that Brazil was a better colony for Portugal than Africa and that the best colony of all would have been Portugal itself. As of the day of the Revolution of 25 April 1974, which sparked the final process of decolonization of the remainder of Portugal's third overseas empire, the results of the colonization program could be seen to be modest compared to the numbers of Portuguese emigrants outside the empire. Moreover, within a year, of some 600,000 Portuguese residing permanently in Angola and Mozambique, all but a few thousand had fled to South Africa or returned to Portugal.In 1974 and 1975, most of the Portuguese empire was decolonized or, in the case of East Timor, invaded and annexed by a foreign power before it could consolidate its independence. Only historic Macau, scheduled for transfer to the People's Republic of China in 1999, remained nominally under Portuguese control as a kind of footnote to imperial history. If Portugal now lacked a conventional overseas empire and was occupied with the challenges of integration in the European Union (EU), Lisbon retained another sort of informal dependency that was a new kind of empire: the empire of her scattered overseas Portuguese communities from North America to South America. Their numbers were at least six times greater than that of the last settlers of the third empire.Historical dictionary of Portugal > Empire, Portuguese overseas
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90 Housing
In a country with a chronic housing shortage, it is ironic that Portugal has preserved and restored one of Europe's finest collections of historic castles and palaces. For decades, well before the Revolution of 25 April 1974, Portugal has endured a shortage of decent, affordable housing, whether rented or purchased, as well as the growth of sprawling urban shantytowns outside Lisbon, Oporto, and smaller towns such as Estoril. Known as bairros da lata, literally, "neighborhoods or boroughs of tin," these poorly constructed dwellings lack electricity, water, or sewage systems. The flimsy buildings are made of any kind of building materials, including sheets of galvanized tin that serve as roofs, walls, and doors. As of the early 1980s, it was estimated that there were at least 700,000 illegally constructed buildings in Portugal, some 200,000 of which were in the greater Lisbon area, an example of the worst kind of urban sprawl. Many of these structures were built on unused private lands or on public lands.Even after Portugal's economy began to benefit from membership in the European Economic Community (EEC; later the European Union), a significant portion of housing remained substandard, whether in rural or urban areas. By the early 1990s, electrification in rural areas was still not complete, and running water and sewage systems were lacking. As of the early 21st century, improvement in housing has occurred, but with population growth and the arrival of migrants from Europe, Brazil, and former colonies in Africa, the basic components of a housing crisis persist: shortage of decent rental or purchased housings; persistent urban shantytowns, which in some areas have expanded; and substandard living conditions.A majority of the Portuguese people (60 percent; and in Lisbon and Oporto, 80 percent) rent their housing. Improving or expanding such rental housing has been challenging in part because of rigid recent control laws that, between 1948 and 1985, tended to discourage either the maintenance and improvement or the construction of apartments. In suburbs outside Lisbon, large apartment houses were built after 1980 for the more prosperous new urbanites, but, as in the past, the supply of good, affordable housing lagged behind demand. Many Portuguese governments confronted and engaged the housing problem, and some excellent reforms were instituted. The contemporary housing crisis nevertheless persists and, after 2007, was complicated by the worldwide economic crisis. -
91 operational gearing
Finthe relationship of the fixed cost to the total cost of an operating unit. The greater the proportion of total costs that are fixed (high operational gearing), the greater the advantage to the organization of increasing sales volume. Conversely, should sales volumes drop, a highly geared organization would find the high proportion of fixed costs to be a major problem, possibly causing a rapid swing from profitability into significant loss-making. -
92 P2P
abbr. E-compeer-to-peer: a means of optimizing the networking capabilities of the Internet among groups of computers. Effectively it puts every computer on an equal footing, in that each can be both a publisher and consumer of information. The traditional model on the Web is the client-server one: the client is a computer that is able only to receive information; the server, on the other hand, publishes information on a Web site. Peer-to-peer makes a computer both a server and a client. Perhaps the best-known example of peer-to-peer is Napster, which enabled person A to search for and download music from person B’s computer, while person B could search for and download music from person A’s computer.There are several options for the use of peer-to-peer technologies. Information/ content: where the content on your computer becomes accessible to everyone else in the peer-to-peer environment, and vice versa. Processing sharing: where computers with spare processing capacity network together in order to combine resources. Using a large number of computers, this can create very significant processing capabilities. Services: a computer user can offer services to other people in the peer-to-peer network. File sharing: if person A downloads a file from a central server (an e-learning course from the Internet, for example), other people can use it from person A’s machine instead of having to download it again, significantly reducing strain on bandwidth.The main problem with peer-to-peer is the issue of security, and therefore it is essential to authenticate users. Many peer-to-peer interactions also use encryption, which ensures that the communication is secure as it is being passed from computer to computer. -
93 Mees, Charles Edward Kenneth
SUBJECT AREA: Photography, film and optics[br]b. 1882 Wellingborough, Englandd. 1960 USA[br]Anglo-American photographic scientist and Director of Research at the Kodak Research Laboratory.[br]The son of a Wesleyan minister, Mees was interested in chemistry from an early age and studied at St Dunstan's College in Catford, where he met Samuel E.Sheppard, with whom he went on to University College London in 1900. They worked together on a thesis for BSc degrees in 1903, developing the work begun by Hurter and Driffield on photographic sensitometry. This and other research papers were published in 1907 in the book Investigations on the Theory of the Photographic Process, which became a standard reference work. After obtaining a doctorate in 1906, Mees joined the firm of Wratten \& Wainwright (see F.C.L.Wratten), manufacturers of dry plates in Croydon; he started work on 1 April 1906, first tackling the problem of manufacturing colour-sensitive emulsions and enabling the company to market the first fully panchromatic plates from the end of that year.During the next few years Mees ran the commercial operation of the company as Managing Director and carried out research into new products, including filters for use with the new emulsions. In January 1912 he was visited by George Eastman, the American photographic manufacturer, who asked him to go to Rochester, New York, and set up a photographic research laboratory in the Kodak factory there. Wratten was prepared to release Mees on condition that Eastman bought the company; thus, Wratten and Wainwright became part of Kodak Ltd, and Mees left for America. He supervised the construction of a building in the heart of Kodak Park, and the building was fully equipped not only as a research laboratory, but also with facilities for coating and packing sensitized materials. It also had the most comprehensive library of photographic books in the world. Work at the laboratory started at the beginning of 1913, with a staff of twenty recruited from America and England, including Mees's collaborator of earlier years, Sheppard. Under Mees's direction there flowed from the Kodak research Laboratory a constant stream of discoveries, many of them leading to new products. Among these were the 16 mm amateur film-making system launched in 1923; the first amateur colour-movie system, Kodacolor, in 1928; and 8 mm home movies, in 1932. His support for the young experimenters Mannes and Godowsky, who were working on colour photography, led to their joining the Research Laboratory and to the introduction of the first multi-layer colour film, Kodachrome, in 1935. Eastman had agreed from the beginning that as much of the laboratory's work as possible should be published, and Mees himself wrote prolifically, publishing over 200 articles and ten books. While he made significant contributions to the understanding of the photographic process, particularly through his early research, it is his creation and organization of the Kodak Research Laboratory that is his lasting memorial. His interests were many and varied, including Egyptology, astronomy, marine biology and history. He was a Fellow of the Royal Society.[br]Principal Honours and DistinctionsFRS.Bibliography1961, From Dry Plates to Ektachrome Film, New York (partly autobiographical).BCBiographical history of technology > Mees, Charles Edward Kenneth
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94 Woodbury, Walter Bentley
SUBJECT AREA: Photography, film and optics[br]b. 1834 Manchester, Englandd. 1885 Margate, Kent, England[br]English photographer, inventor of the Woodburytype process.[br]Having been apprenticed to be an engineer, Woodbury left England in 1851 to seek his fortune in the Australian gold-fields. Like many others, he failed, and after a series of transient jobs found a post as Draughtsman at the Melbourne Waterworks. He then went on to Java, where he practised wet-collodion photography before returning to England finally in 1863. Woodbury settled in Birmingham, where like most contemporary photographers he was concerned to find a solution to the troublesome problem of fading prints. He began working the carbon process, and in 1866 and 1867 took out a series of patents which were to lead to the development of the process that took his name. Woodburytypes were continuous-tone prints of high quality that could be mass produced more cheaply than the traditional silver print. This was an important innovation and Woodburytypes were extensively used for quality book illustrations until the introduction of more versatile photomechanical processes in the 1890s. In all, Woodbury took out twenty patents between 1864 and 1884, some relating to a wide range of photographic devices. He was still working to simplify the Woodburytype process when he died from an overdose of laudanum.[br]BibliographyWoodbury took out a series of patents on his process, the most significant being: 23 September 1864, British patent no. 2,338; 12 January 1866, British patent no. 105; 11 February 1866, British patent no. 505; 8 May 1866, British patent no. 1,315; 24 July 1866, British patent no. 1,918.Further ReadingG.Tissandier, 1876, A History and Handbook of Photography, trans. J.Thomson.B.E.Jones (ed.), 1911, Cassell's Cyclopaedia of Photography, London (a brief biography).J.M.Eder, 1945, History of Photography, trans. E. Epstean, New York.JWBiographical history of technology > Woodbury, Walter Bentley
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95 Πέτρος
Πέτρος, ου, ὁ (ὁ πέτρος=‘stone’ Hom.+; Jos., Bell. 3, 240, Ant. 7, 142.—Π. as a name can scarcely be pre-Christian, as AMerx, D. vier kanon. Ev. II/1, 1902, 160ff, referring to Jos., Ant. 18, 156 [Niese did not accept the v.l. Πέτρος for Πρῶτος], would have it. But s. ADell [πέτρα 1b] esp. 14–17. Fr. the beginning it was prob. thought of as the Gk. equivalent of the Aram. כֵּיפָא= Κηφᾶς: J 1:42; cp. Mt 16:18 and JWackernagel, Syntax II2 1928, 14f, perh. formed on the analogy of the Gk. male proper name Πέτρων: UPZ 149, 8 [III B.C.]; 135 [78 B.C.]; Plut., Mor. 422d.—A gentile named Πέτρος in Damasc., Vi. Isid. 170. S. also the Praeses Arabiae of 278/79 A.D. Aurelius P.: Publ. Princeton Univ. Arch. Expedition to Syria III A, 1913, 4 no. 546) Peter, surname of the head of the circle of Twelve Disciples, whose name was orig. Simon. His father was a certain John (s. Ἰωάννης 4) or Jonah (s. Ἰωνᾶς 2). Acc. to J 1:44 he himself was from Bethsaida, but, at any rate, when he met Jesus he lived in Capernaum (Mk 1:21, 29). Fr. that city he and his brother Andrew made their living as fishers (Mk 1:16). He was married (Mk 1:30; cp. 1 Cor 9:5), but left his home and occupation, when Jesus called, to follow him (Mk 1:18; 10:28). He belonged to the three or four most intimate of the Master’s companions (Mk 5:37; 9:2; 13:3; 14:33). He stands at the head of the lists of the apostles (Mt 10:2; Mk 3:16; Lk 6:14; Ac 1:13). Not all the problems connected w. the conferring of the name Cephas-Peter upon Simon (s. Σίμων 1) have yet been solved (the giving of a new name and the reason for it: Plato [s. ὀνομάζω 1] and Theophrastus [Vi. Platonis 2 ln. 21 in Biog. p. 388 W.= Prolegom. 1 in CHermann, Pla. VI 196 Θεόφραστος, Τύρταμος καλούμενος πάλαι, διὰ τὸ θεῖον τῆς φράσεως Θ. μετεκλήθη]; CRoth, Simon-Peter HTR 54, ’61, 91–97). He was at least not always a model of rock-like (πέτρος is a symbol of imperturbability Soph., Oed. Rex 334; Eur., Med. 28 al.) firmness (note Gethsemane, the denial, the unsuccessful attempt at walking on water; his conduct at Antioch Gal 2:11ff which, though, is fr. time to time referred to another Cephas; s. KLake, HTR 14, 1921, 95ff; AVöllmecke, Jahrbuch d. Missionshauses St. Gabriel 2, 1925, 69–104; 3, 1926, 31–75; DRiddle, JBL 59, ’40, 169–80; NHuffman, ibid. 64, ’45, 205f; PGaechter, ZKT 72, ’50, 177–212; but s. HBetz, Gal [Hermeneia] p. 105f w. n. 442). Despite all this he was the leader of Jesus’ disciples, was spokesman for the Twelve (e.g. Mt 18:21; 19:27; Mk 8:27ff; Lk 12:41; 18:28) and for the three who were closest to Jesus (Mk 9:5); he was recognized as leader even by those on the outside (Mt 17:24). He is especially prominent in the pronouncement made Mt 16:18. Only in the Fourth Gospel does Peter have a place less prominent than another, in this case the ‘disciple whom Jesus loved’ (s. Hdb. exc. on J 13:23). In connection w. the miraculous events after Jesus’ death (on this ELohmeyer, Galiläa u. Jerusalem ’36; WMichaelis, D. Erscheinungen d. Auferstanden-en ’44; MWerner, D. ntl. Berichte üb. d. Erscheinungen d. Auferstandenen: Schweiz. Theol. Umschau ’44) Pt. played a unique role: 1 Cor 15:5; Lk 24:34; Mk 16:7. He was one of the pillars of the early church (Gal 2:9 [Κηφᾶς]). Three years after Paul was converted, on his first journey to Jerusalem as a Christian, he established a significant contact w. Peter: Gal 1:18. At least until the time described in Gal 2:1–10 (cp. Ac 15:7) he was prob. the head of the early Christian community/church. He was also active as a missionary to Israel Gal 2:8; cp. 1 Cor 9:5 (Κηφᾶς).—MGoguel, L’apôtre Pierre a-t-il joué un role personnel dans les crises de Grèce et de Galatie?: RHPR 14, ’34, 461–500.—In 1 Pt 1:1 and 2 Pt 1:1 he appears as author of an epistle. On Paul’s journey to Rome: Ἀρτέμων ὁ κυβερνήτης τοῦ πλοίου ἦν λελουμένος ὑπὸ Πέτρου Artemon, the ship’s captain, was baptized by Peter AcPl Ha 7, 20. It is probable that he died at Rome under Nero, about 64 A.D..—In the NT he is somet. called Σίμων (q.v. 1; in Ac 15:14 and 2 Pt 1:1 more exactly Συμεών=שִׁמְעוֹן); except for Gal 2:7f Paul always calls him Κηφᾶς (q.v.). Both names Σίμων Π. Mt 16:16; Lk 5:8; J 1:40; 6:8, 68; 13:6, 9, 24, 36; 18:10, 15, 25; 20:2, 6; 21:2f, 7b, 11, 15. Σίμων ὁ λεγόμενος Π. Mt 4:18; 10:2. Σίμων ὁ ἐπικαλούμενος Π. Ac 10:18; 11:13. Σίμων ὸ̔ς ἐπικαλεῖται Π. 10:5, 32.—Outside the NT it is found in our lit. GEb 34, 59; GPt 14:60 (Σίμων Πέτρος); ApcPt Rainer; GMary 463 (2 times); AcPt Ox 849 (4 times); 1 Cl 5:4 (Paul follows in 5:5); 2 Cl 5:3f (a piece fr. an apocr. gosp.); IRo 4:3 (Πέτρος καὶ Παῦλος); ISm 3:2=GHb 356, 39; Papias (2:4, w. other disciples; 15, w. Mark as his ἑρμηνευτής).—Zahn, Einl. II §38–44; KErbes, Petrus nicht in Rom, sondern in Jerusalem gestorben: ZKG 22, 1901, 1ff; 161ff (against him AKneller, ZKT 26, 1902, 33ff; 225ff; 351ff); PSchmiedel, War der Ap. Petrus in Rom?: PM 13, 1909, 59–81; HLietzmann, Petrus u. Pls in Rom2 1927; GEsser, Der hl. Ap. Petrus 1902; CGuignebert, La primauté de St. Pierre et la venue de Pierre à Rome 1909; FFoakes-Jackson, Peter, Prince of Apostles 1927; HDannenbauer, D. röm. Pt-Legende: Hist. Ztschr. 146, ’32, 239–62; 159, ’38, 81–88; KHeussi, War Pt. in Rom? ’36, War Pt. wirklich röm. Märtyrer? ’37, Neues z. Pt.-frage ’39, TLZ 77, ’52, 67–72; HLietzmann, Pt. röm. Märt.: SBBerlAk ’36, XXIX; DRobinson, JBL 64, ’45, 255–67; HSchmutz, Pt. war dennoch in Rom: Benedikt. Monatsschr. 22, ’46, 128–41.—On Mt 16:17–19 s., in addition to the lit. on κλείς 1 and πέτρα 1b: JSchnitzer, Hat Jesus das Papsttum gestiftet? 1910, Das Papsttum eine Stiftung Jesu? 1910; FTillmann, Jesus u. das Papsttum 1910; AKneller, ZKT 44, 1920, 147–69; OLinton, D. Problem der Urkirche ’32, 157–83; KPieper, Jes. u. d. Kirche ’32; AEhrhard, Urkirche u. Frühkatholizismus I 1, ’36.—JMunck, Pt. u. Pls in der Offenb. Joh. ’50 (Rv 11:3–13).—OCullmann, Petrus2, ’60 (Eng. tr. Peter, FFilson2, ’62), L’apôtre Pierre: NT Essays (TManson memorial vol.), ’59, 94–105; OKarrer, Peter and the Church: an examination of the Cullmann thesis, ’63; RO’Callaghan, Vatican Excavations and the Tomb of Peter: BA 16, ’53, 70–87; AvGerkan, D. Forschung nach dem Grab Petri, ZNW 44, ’52/53, 196–205, Zu den Problemen des Petrusgrabes: JAC ’58, 79–93; GSnyder, BA 32, ’69, 2–24; JGwynGriffiths, Hibbert Journal 55, ’56/57, 140–49; TBarnes, JTS 21, ’70, 175–79; GSchulze-Kadelbach, D. Stellung des P. in der Urchristenheit: TLZ 81, ’56, 1–18 (lit.); PGaechter, Petrus u. seine Zeit, ’58; EKirschbaum, The Tombs of St. Peter and St. Paul (transl. JMurray) ’59; EHaenchen, Petrus-Probleme, NTS 7, ’60/61, 187–97; SAgourides, Πέτρος καὶ Ἰωάννης ἐν τῷ τετάρτῳ Εὐαγγελίῳ, Thessalonike, ’66; DGewalt, Petrus, diss. Hdlbg, ’66; RBrown, KDonfried, JReumann edd., Peter in the NT, ’73; CCaragounis, Peter and the Rock (BZNW 58) ’89.—Pauly-W. XIX ’38, 1335–61; Kl. Pauly IV 674–76; BHHW III 1430f. LGPN I. M-M. EDNT. TW. Sv. -
96 виды коррекции коэффициента мощности
виды коррекции коэффициента мощности
-There are 2 types of power factor correction: fixed or automatic.
Fixed power factor correction consists of inserting, in parallel on the network, a capacitor bank whose total power is provided by the assembly of capacitors of identical or different ratings. The bank is energized by a contactor that simultaneously supplies all the capacitors (a single step).
The inrush current peak, in the case of fixed correction, can reach 30 times the nominal current of the capacitor bank.
An automatic power factor correction system, on the other hand, consists of several capacitor banks of identical or different ratings (several steps), energized separately according to the value of the power factor to be corrected.
An electronic device automatically determines the power of the steps to be energized and activates the relevant contactors.
The inrush current peak, in the case of automatic correction, depends on the power of the steps already on duty, and can reach 100 times the nominal current of the step to be energized.
[ABB]
PFC Types
There are two types of Power Factor Correction - Passive PFC and Active PFC.
Passive PFC uses passive elements like a ferrite core inductor on the AC input. It is very easy to implement in existing power circuits although the power factor is low at 60-80%. The proper AC input voltage (115V or 230V) must also be chosen manually. In addition, significant EMI can still result with a 115V AC source. Of course, a 230V AC source will not have this problem!.
Active PFC, on the other hand, uses a switching regulator with active elements like an IC, FETs (Field Effect Transistors) and diodes to create an active PFC circuit. This circuit allows the power supply to achieve a power factor of up to 95%, significantly reduce harmonics and automatically adjusts the AC input voltage. This means you do not have to manually select the AC input voltage. It works with all voltages from 110V to 240V.
[ http://www.techarp.com/showarticle.aspx?artno=81&pgno=1]
Тематики
EN
Русско-английский словарь нормативно-технической терминологии > виды коррекции коэффициента мощности
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97 воздействие производства энергии на окружающую среду
воздействие производства энергии на окружающую среду
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
environmental impact of energy
Energy and environmental problems are closely related, since it is nearly impossible to produce, transport, or consume energy without significant environmental impact. The environmental problems directly related to energy production and consumption include air pollution, water pollution, thermal pollution, and solid waste disposal. The emission of air pollutants from fossil fuel combustion is the major cause of urban air pollution. Diverse water pollution problems are associated with energy usage. One major problem is oil spills. In all petroleum-handling operations, there is a finite probability of spilling oil either on the earth or in a body of water. Coal mining can also pollute water. Changes in groundwater flow produced by mining operations often bring otherwise unpolluted waters into contact with certain mineral materials which are leached from the soil and produce an acid mine drainage. Solid waste is also a by-product of some forms of energy usage. Coal mining requires the removal of large quantities of earth as well as coal. In general, environmental problems increase with energy use and this combined with the limited energy resource base is the crux of the energy crisis. An energy impact assessment should compare these costs with the benefits to be derived from energy use. (Source: RAU)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
Русско-английский словарь нормативно-технической терминологии > воздействие производства энергии на окружающую среду
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98 замыкание на землю
- line-to-ground fault
- grounding connection
- ground short circuit
- ground fault (US)
- ground connection
- ground
- earth fault
- earth connection
- earth
замыкание на землю
Случайный электрический контакт между токоведущими частями, находящимися под напряжением, и землей.
[ПУЭ]
замыкание на землю
Замыкание, обусловленное соединением с землей.
[ ГОСТ 26522-85]
замыкание на землю
Состояние, характеризующееся возникновением случайной проводящей цепи между проводником, находящимся под напряжением, и землей.
Примечание - Проводящая цепь может проходить через поврежденную изоляцию, строительные конструкции (колонны, леса, краны, лестницы) или растения (деревья, кусты) и может иметь значительное полное сопротивление.
[ ГОСТ Р МЭК 60050-195-2005]EN
earth fault
occurrence of an accidental conductive path between a live conductor and the Earth
NOTE – The conductive path can pass through a faulty insulation, through structures (e.g. poles, scaffoldings, cranes, ladders), or through vegetation (e.g. trees, bushes) and can have a significant impedance.
[IEV number 195-04-14]FR
défaut à la terre
occurrence d’un chemin conducteur accidentel entre un conducteur sous tension et la Terre
NOTE – Le chemin conducteur peut passer par une isolation défectueuse, par des structures (par exemple supports de ligne, échafaudages, grues, échelles), ou encore par la végétation (par exemple arbres, buissons) et peut présenter une impédance non négligeable.
[IEV number 195-04-14]Параллельные тексты EN-RU
The earth fault, caused by an insulation loss between a live conductor and an exposed conductive part, represents a plant engineering problem which may cause damage to the electrical installations and above all may jeopardize people; as a matter of fact, people could get in touch with an exposed-conductive-part not normally live but which, due to the fault, might have a dangerous potential to ground.
[ABB]Замыкание на землю, вызванное повреждением изоляции между токоведущим проводником и открытой проводящей частью, представляют определенную проблему при эксплуатации электроустановок, поскольку такая неисправность может привести к выходу электрооборудования из строя и, кроме того, подвергает людей опасности поражения электрическим током. Это объясняется тем, что становится возможным прикосновение к открытой проводящей части, которая в нормальных условиях не находится под напряжением, но из-за повреждения изоляции может приобрести опасный потенциал относительно земли.
[Перевод Интент]Тематики
EN
- earth
- earth connection
- earth fault
- ground
- ground connection
- ground fault (US)
- ground short circuit
- grounding connection
- line-to-ground fault
DE
FR
Русско-английский словарь нормативно-технической терминологии > замыкание на землю
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99 резерв мощности на покрытие несбалансированности нагрузок разного вида
резерв мощности на покрытие несбалансированности нагрузок разного вида
-
[Интент]Stranded capacity
Stranded capacity is capacity that cannot be utilized by IT loads due to the design or configuration of the system. The presence of stranded capacity indicates an imbalance between two or more of the following capacities:A specific IT device requires sufficient capacity of all of the five above elements. Yet these elements are almost never available in an exact balance of capacity to match a specific IT load. Invariably, there are locations with rack space but without available cooling, or spaces with available power but with no available rack space. Capacity of one type that cannot be used because one of the other four capacities listed above has been used to its maximum capacity is called stranded capacity. Stranded capacity is undesirable and can seriously limit the performance of a data center. Unfortunately, most data centers have significant stranded capacity issues, including the following common examples:
- An air conditioner has sufficient capacity but inadequate air distribution to the IT load
- A PDU has sufficient capacity but no available breaker positions
- Floor space is available but there is no remaining power
- Air conditioners are in the wrong location
- Some PDUs are overloaded while others are lightly loaded
- Some areas are overheated while others are cold
Depending on the situation and the architecture of the power and cooling system, it might be impossible to utilize stranded capacity or it might be that only minor investments are needed to free stranded capacity so that it can be effectively used. By definition, utilizing stranded capacity comes at a cost. It is often necessary to take down part of the installation or install new power and cooling components.
Stranded capacity is a very frustrating capacity management problem for data center operators because it is very hard to explain to users or management that a data center with 1 MW of installed power and cooling capacity can’t cool the new blade servers when it is only operating at 200 kW of total load.
An effective capacity management system not only identifies and highlights stranded capacity, but also helps customers avoid creating it in the first place.
[APC]Тематики
EN
Русско-английский словарь нормативно-технической терминологии > резерв мощности на покрытие несбалансированности нагрузок разного вида
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