Ilm

SINKIT, mineralist az sinfi ok­sidho, ZnO; odatan omekhtahoi MgO (to 9%), PbO (to 5,3%), FeO (to 1,1%) dorad. Rangash zardi norinji va surkhi tira. Sakhtiash 4,5—5,0-zichiash qarib 5,7 g/sm3. Minerali kamyoft. Paydoishash kontaktiyu netasomati.

SIRKON (nem. Zirkon, az kalimai tojikii zargun), mineralest az sinfi silikatho, ZrSiO. Aksar vaqt omekhtai elementhoi nodirzamin — gafniy, toriy, uran va g. dorad. Zard, surkhi jigaritob, khokistarrang, gulobi va bazan berang meshavad. Sakhtiash 7—7,5; zichiash 3,9—4,7 g/ sm3. Khosiyati radioaktivi dorad. Sirkon hamchun minerali aksessori ba tarkibi bisyor jinsho …

SIRKONIY (lot. Zirconium), Zr, elementi khimiyavii guruhi IV sistemai davrii Mendeleev; raqami at. 40, massai at. 91,22. Nomash az mi­neraii Sirkon girifta shudaast. Metalli safedi nuqratob, sakht va mushkilgudoz; zichiash 6450 kg/m3, t gud. 1852°S. Az jihati khimiyavi Sirkoniy ustuvor ast (dar havo bo pardai oksidai ZrOj pushida meshavad). Mineralhoi …

KhULOSA, chunin natijai mantiqiero guyand, ki az muqaddimaho barmeoyad. Dar mantiqi matematiki bayni Xulosa hamchun natijai mantiqi va Xulosa hamchun guzarishi mantiqi az muqaddimaho ba natija tafovut mavjud ast. Ammo dar mantiqi ananavi chunin tafovut ba etibor girifta nameshavad.

KhULOSABARORI, yak shakli jarayoni tafakkurro guyand, ki dar on : az yak yo yakchand muhokima khulosa barovarda meshavad. Har yak Xulosabarori az muqaddima va khulosa iborat ast. Muqaddimahoi Xulosabarori muhokimahoi ibtidoi meboshand. Durustii Xulosabarori ba rioya namudani sharthoi zerin vobasta ast: 1) muqaddimaho boyad haq boshand; 2) dar jarayoni ifodai …

KhUDOMUZI, malumotest, ki berun az donishkadaho mustaqilona hosil meshavad. Xudomuzi qismi tarkibii talimi murattabi donishkadahost, ki ba donishanduzii mukammal musoidat menamoyad. Xudomuzi juzi muhimmi kori talimiyu ilmi va ejodist. Gazeta, radio, televizion, shunidani maruza, raftan ba muzey, vistavka, kino, teatr, suhbati mutakhassisoni sohahoi gunogun ba Xudomuzi yori merasonand. Khudomuzii pedagogi …

KhROMATOGRAFIYa (az yun. chroma — rang va …grafin), yak usuli fizikiyu khimiyavii taqsim va tahlili omekhtahoro guyand. Xromatografiya ba taqsim shudani komponenthoi omekhtaho dar bayni du faza — beharakat va harakatnok (elyuent) asos yoftaast. Xromatografiyai adsorbsioni, absorbsioni, mubodilai ioni, eksklyuzioni va g. meshavad. Xromatografiya dar laboratoriya va sanoat baroi tahlili …

KhROMATHO namakhoi kislotai khromat va izopolikhromatro guyand. Xromatho tanho dar muhiti ishqori ustuvorand; hangomi turshonidan ba dikhromatho mubaddal meshavand. Khromathoi kaliy va natriy beshtar mamuland.

KhROMODINAMDKAI KVANTI, yak sohai fizikaro guyand, ki sokhti adronhovu hodisahoi adroni va tasiri mutaqobili kvarkhovu glyuonhoro meomuzad; nazariyai tasiri mutaqobili zur buda, dar qiyosi elektrodinamikai kvanti bunyod shudaast. S. Qodiri.

KhROMOPROTEIDHO (az. khromo… va proteidho), yak nav safedahoi murakkabro guyand, ki dar tarkibashon juzhoi gayrisafedavii rangin mavjudand. Guruhi nisbatan pahnshudai Xromoproteidho sitokhromho, katalaza, peroksidaza, gemoglobin, mioglobin va g. meboshaid.