Malumoti ohirin
salto

SALTO

futbol

FUTBOL

ustodi-varzish

USTODI VARZISh

universiada

UNIVERSIADA

unvoni-ms

UNVONHOI SPORTI

holmenkollbakken

TRAMPLIN

tibbi-sporti

TIBBI SPORTI

tennisi-rui-miz

TENNISI RUI MIZ

tennis

TENNIS

Habarhoi ohirin

Nitratho

Nitratho, namakhoi kislotai nitrat HNOs. Moddahoi kristallii berang; dar hapopati muqarrari ustuvorand. Dar harorati baland bo osoni oksigeni khudro gum karda khosiyati oksidkunandagi paydo mekunand. Masalan, 2KN03 = 2KNOa + 02 N Dar ob nagz hal meshavand. Onhoro dar natijai ba metallho, oksidho va baze namakho tasir kardani HNOs, tasiri …

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Nitrathoi sellyuloza

Nitrathoi sellyuloza, nit­rosellyuloza, efirhoi murakkabi nitrati sellyuloza; formulai umumiashon[SvN702 (O N) z_g (0N03) kh)p, qimati kh az 1 to 3 tagyir yofta metavonad; massai safedi narmi nakhdor, ki ba sellyuloza shabohat dorad. Khelhoi zerini Nitrathoi sellyuloza ahamiyati ama­li dorand: kolloksilin (10,7—12,2% N dorad), piroksilin № 1 (13,0 — 13,5%’N dorad), …

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Nishondihandai gidrogeni

Nishondihandai gidrogeni, pH—buzurgie, ki konsentrasiya yo faoliyati ionhoi gidrogen (gid­roksil)-i mahlulro nishon medihad. Nishondihandai gidrogeni ba konseptrasiyai ionhoi gid­rogen, ki bo logarifmai manfi ifoda yoftaast (Sn+), yo faoliyati termodinamiki  pH = —LgCH+ yo pH — —Lg«H+. Dar muhiti neytrali (N-) – (ON ) = = 10-7 g. ion/litr yane pH …

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Nitrifikasiya

Nitrifikasiya (az «nitr… va lotini facio — mekunam), prosessi mik­robiologii tabdili namakhoi ammo­niy ba nitratho (shakli asosii gizoi nitrogenii rastani). Dar khok va obi obanborho ba amal meoyad. Nitrifikasiya nishondihandai hosilkhezii khok ast. Nitrifikasiyaro bakteriyahoi nitroanduzi khemosintezi ba vujud meovarand. Nitrifikasiya dar du davr meguzarad. Avval ioni ammoniy bo tasiri …

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