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Monthly Archives: July 2017

Oksigenasiyai giperbari

Oksigenasiyai giperbari az giper…% yun. baros—vaznini va oksigen), yake az usulhoi muolija va peshgirii bemorihost, ki hangomi on oksigeni tozaro bo fishori na on qadar baland istifoda mebarand. Oksigeni giperbariro avvalin shuda olimi fransavi II. Ber (1878) omukhta, mufassal bayon kardaast. Oksigenasiyai giperbaliro dar barokameraho meguzaronand. Onro dar holathoi gipoksiya …

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Oksidoreduktazaho

Oksidoreduktazaho, fermenthoe, ki reaksiyahoi oksidu barqarorshaviro kataliz mekunand. Oksidoreduktazaho dar hamai hujayrahoi zinda joy dorand. Onho ba guruhhoi spirti (—ON), aldegidi (—SNO), ketoni (>SO), etili (—SN2— ON2—), inchunin shaklhoi barqarorshudai kofermenthoi piridish) — nikotinamida- denindinukleotid (NAD) va niko- tinamidadenindinukleotid fosfat (NADF) va gayra tasir karda, onhoro oksid menamoyand. Beshtar az …

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Ok­sidu barqarorshavi

Ok­sidu barqarorshavi, r e aksiyahoi oksidu barqa- rorshavi, reaksiyahoi khimiyaviand, ki dar natijai purra yo qisman az yak atom ba atomi digar guzashtani elektronho ba vujud meoyand. Intiqoli elektron oksidshavi va payvasti on barqarorshavi nomida meshavad. Atomhoi neytrali, molekula yo ionhoe, ki elektron qabul menamoyand, oksidkunanda va atomhoi neytrali, molekula …

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Oksidho

Oksidho, payvasti elementhoi khimiyavi bo oksigen. Az rui khosiyati khimiyavi Oksidhoro ba namakhosilkunanda (Na20, MgO, A1203, Si02, P2OS, S03, CI2O7 va g.) va namakhosilnakunanda (SO, N20, N0, N20 va g.) judo mekunand. Oksidhoi namakhosilkunanda dar navbati khud ba Oksidhoi asosi, kislotagi va amfoteri (gidrookisi onho vobasta ba muhit asos yo …

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Shahri Oksford

Oksford (Oxford), shahrest dar Britaniyan Kabir, dar sohili daryoi Temza. Markazi mamurii grafin Oksfordshir. Aholiash 117 hazor nafar (1976). Uzeli muhimmi naqliyot va markazi savdo. Dar Kouli nom mahalli nazdi Oksford korkhonahoi kaloni avtomobilsozi mavjudand. Sohahoi sanoati elektrotekhniki va poligrafi niz rivoj yoftaast. Teatr, kitobkhonayu muzeyho dorad. YOdgorihoi memoriash: Kalisoi …

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Oktava

Oktava (az lotini octava — hashtum), dar musiqi, 1) fosilaest, ki hasht zinai qatorovozi diatoniki yo shash pardai yaklukhtro darbar megirad: 1 oktava = 1200 sent  301 savar. 2) Zinai hashtumi qatorovozi diatoniki. 3) Yak qismi qatorovozi musiqi, ki ba on zinahoi asosii musiqi (do, re, mi, fa, sol, lya, …

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Oktametil

Oktametil, oktametil tet­ramidi kislotai pirofos­fat, ((SN3) 2Nb POOOP(N (GH3) 2J, vositai khimiyaviest baroi mahvi kana va hasharoti zararrasoni rastanihoi sitrusi, tut va digar darakhtoni meva.

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Okrugi Avtonomii Chukot

Okrugi Avtonomii Chukot, dar hayati viloyati Magadani RSFSR. Dar Shimoli Sharqi SSSR voqe ast. 10 dekabri 1930 tashkil shudaast. Okrugi avtonomii Chukot nimjazirai Chukotro, ki ba on qismi materik va jazirahoi Vrangel, Ayon, Arakamchechen, Ratmanov va gayra dokhil meshavand, darbar megirad. Onro bahrhoi Sibiri Sharqi, Chukot va Be­ring ihota kardaand. …

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Oktan

Oktan, noktan, karbogidridi ser C8Hie; moei berang buda bui makhsus dorad. t gudozish— 56,8° Selsiya; t jushish 125,67° S; zichiash 702,5 kilogramm/metr3 (20* S). Adadi oktaniash 17—19 ast. Yakjoya bo izooktan va digar izomerhoyash dar neft, benzin (to 10%), inchunin ba miqdori ziyod dar benzini sintezie, ki az SO va …

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Okrugi Avtonomii Khantiyu Man­siho

Okrugi Avtonomii Khantiyu Man­siho, dar hayati viloyati Tyumeni RSFSR. 10 dekabri 1930 tashkil shuda­ast (to 23. 10. 1940 Okrugi millii Ostyako-Vogulsk, to 1977 Okrugi millii Khantiyu Mansi). Dar qismi markaezii hamvorii Sibiri Garbi voqe ast. Masohat 523,1 hazor kilometr3. Aholiash 569 hazor nafar (1979). Markazash shahri Khanti-Mansiysk. Ba 7 rayon …

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