Video: Dab tsi yog kev ncua hauv tsev muag tshuaj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A tshuaj raug ncua yog ib coarse dispersion ntawm insoluble khoom hais nyob rau hauv ib tug kua nruab nrab. Particle diam a kev ncua feem ntau yog ntau tshaj 0.5 µm. Kev ncua yog ib hoob tseem ceeb ntawm tshuaj noj cov ntawv.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog kev siv tshuaj ntawm kev ncua?
Kev ncua feem ntau yog siv rau cov tshuaj uas yog insoluble los yog tsis zoo soluble. E.g. Txhawm rau tiv thaiv degradation ntawm cov tshuaj los yog txhim kho stability ntawm cov tshuaj. Los npog qhov saj ntawm iab ntawm cov tshuaj tsis kaj siab.
Kuj Paub, dab tsi yog kev siv ntawm kev ncua? qhov chaw hauv kev npaj tshuaj siv, lawv tau ua rau hauv kev ncua. Suspensions muaj ib tug finely faib khoom dispersed nyob rau hauv a dej -raws li kua. Zoo li kev daws teeb meem thiab elixirs, kev ncua feem ntau muaj cov tshuaj tua kab mob, cov khoom qab zib, tsw, thiab cov dyes los txhim kho kev lees paub ntawm tus neeg mob.
Raws li, qhov kev ncua kev kawm ntawv yog dab tsi?
Hauv chemistry, a kev ncua yog ib tug heterogeneous sib tov uas muaj cov khoom hais txaus loj rau sedimentation. Cov theem sab hauv (khoom) yog tawg mus thoob plaws theem sab nraud (kua dej) los ntawm kev ua kom muaj zog, nrog rau kev siv qee yam excipients los yog suspending agents.
Dab tsi yog qhov txawv ntawm kev ncua?
Muaj peb yam yooj yim hom kev ncua Cheebtsam: linkages, springs, thiab shock absorbers. Cov kev sib txuas yog cov kab tuav thiab cov hlua khi uas txhawb nqa lub log, lub caij nplooj ntoos hlav thiab kev poob siab absorbers.
Pom zoo:
Dab tsi yog qhov txawv ntawm lub teeb pom kev nyuaj thiab muag muag?
Qhov sib txawv ntawm lub teeb mos thiab lub teeb nyuaj. Lub teeb nyuaj ua rau qhov sib txawv, tawv-edged ntxoov ntxoo. Lub teeb mos ua rau cov duab ntxoov ntxoo uas tsis tshua pom. Ib hnub tshav ntuj yog lub teeb nyuaj
Yuav ua li cas hloov lub ntim ntim hauv tsev muag tshuaj?
Kev hloov pauv ntawm cov tshuaj X yog 0.5mL / 40mg. Yog hais tias qhov xav tau concentration yog 4mg hauv 1mL, ces 20mL yog xav tau rau 80mg ntawm tshuaj X. Yog hais tias 40mg displaces 0.5mL ntawm cov tshuaj, nws txhais tau tias 80mg displaces 1mL. 20mL - 1mL = 19mL ntawm diluent xav tau
Dab tsi yog qhov txawv ntawm kev tswj thiab qhov tsis tu ncua hauv kev tshawb fawb?
Qhov sib txawv ntawm qhov tsis tu ncua thiab Tswj Ib qhov hloov pauv tsis tu ncua tsis hloov. Ib qho kev tswj hwm qhov sib txawv ntawm lwm qhov kev hloov pauv, tab sis txhob txwm ua kom tas mus li thoob plaws qhov kev sim kom qhia txog kev sib raug zoo ntawm kev vam thiab kev ywj pheej
Yog vim li cas sodium poov tshuaj twj tso kua mis suav hais tias yog ib qho kev thauj mus los uas cov kev taw qhia yog cov sodium thiab poov tshuaj tau pumped?
Sodium-Potassium Pump. Kev thauj mus los yog lub zog xav tau cov txheej txheem ntawm kev siv cov molecules thiab ions hla daim nyias nyias 'nce toj' - tiv thaiv kev sib tw gradient. Txhawm rau txav cov molecules tawm tsam lawv cov concentration gradient, yuav tsum muaj cov khoom siv protein
Yuav ua li cas yog qhov tshwm sim uas ib tug poj niam dig muag xim uas yuav ib tug txiv neej uas tsis pom kev zoo yuav muaj xim dig muag me nyuam?
Yog tias tus poj niam uas muaj lub zeem muag zoo li no (heterozygous rau qhov muag tsis pom xim) yuav ib tug txiv neej ib txwm muaj (XY), cov xeeb ceem hauv qab no tuaj yeem xav tau hauv F2 tiam: ntawm cov ntxhais, 50% yog ib txwm muaj thiab 50% yog cov neeg nqa khoom rau cov kab mob; ntawm cov tub, 50% yog xim dig muag thiab 50% yog qhov pom kev zoo