Video: Dab tsi yog cov khoom ntawm daim ntawv thiab lub rooj tsavxwm?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov tseem ceeb tshaj plaws optical cov khoom ntawm ntawv yog brightness, xim, opacity, thiab gloss. Lub sij hawm ci ci tau los txhais tau tias qhov twg dawb los yog ze-dawb cov ntaub ntawv thiab paperboard qhia txog lub teeb ntawm xiav kawg ntawm lub spectrum (piv txwv li, lawv reflectance).
Yog li ntawd, dab tsi yog cov khoom ntawm Bleedproof ntawv?
Yam ntxwv . Bond ntawv yog ruaj thiab muaj zog, me ntsis nruj thiab kho kom txo qis los yog "fuzz" los ntawm fiber ntau. Bleedproof ntawv muaj ib qho nyuaj, du nto, thiab thaum tus number case yog siv (tshwj tsis yog tsaus nti lossis hnyav cov cim), nws tiv thaiv los ntshav (los yog feathering) qhov twg tus number case nyob.
Ib sab saum toj no, dab tsi yog cov khoom ntawm daim npav? Daim npav yog tsim nyob rau hauv tib txoj kev raws li daim ntawv tab sis yog thicker thiab denser, muab nws siab zog thiab structural khoom.
Daim npav.
| Daim npav | Lub cev muaj zog | Cov khoom ua haujlwm |
|---|---|---|
| bleached daim npav | Dawb vim cov txheej txheem bleaching nws tau txais | Muaj zog thiab tuaj yeem luam tawm tau yooj yim, feem ntau siv rau ntawm phau ntawv npog thiab ntim rau kev pleev xim |
Raws li, cov khoom siv tshuaj ntawm ntawv yog dab tsi?
Taw qhia. A ntawv Raws li cov khoom lag luam feem ntau muaj 90-99% cellulose fibers uas yog cov txheej txheem tseem ceeb thiab cov khoom tseem ceeb tshaj plaws cuam tshuam rau kev siv kawg. khoom . Ib qho kev sib txuas ntawm tus kheej-bonding cellulose fibers hauv cov qauv network cuam tshuam tshuaj thiab lub cev yam ntxwv ntawm ntawv cov khoom
Cov khoom ntawm ntawv yog dab tsi?
Qhov tseem ceeb tshaj plaws optical cov khoom ntawm ntawv yog brightness, xim, opacity, thiab gloss. Lub sij hawm ci ci tau los txhais tau tias qhov twg dawb los yog ze-dawb cov ntawv thiab daim ntawv ntawv qhia txog lub teeb ntawm xiav kawg ntawm lub spectrum (piv txwv li, lawv qhov kev xav).
Pom zoo:
Dab tsi yog qhov txawv ntawm daim ntawv cog lus lub zog thiab daim ntawv cog lus dissociation zog?
Qhov sib txawv tseem ceeb ntawm kev sib txuas ntawm lub zog thiab lub zog bonddissociation yog tias lub zog sib txuas yog qhov nruab nrab ntawm lub zog xav tau los rhuav tshem tag nrho cov kev sib txuas ntawm tib ob hom atoms nyob rau hauv ib qho chaw sib txuas whereas daim ntawv cog lus dissociation zog yog tus nqi ntawm cov hluav taws xob xav tau los rhuav tshem ib qho kev sib koom ua ke inhomolysis
Dab tsi yog qhov txawv ntawm daim ntawv qhia lub hom phiaj thiab daim ntawv qhia lub hom phiaj tshwj xeeb?
Qhov tseem ceeb hauv daim ntawv qhia dav dav yog nyob ntawm qhov chaw. Phab ntsa daim duab qhia chaw, feem ntau daim ntawv qhia pom nyob rau hauv atlases, thiab txoj kev maps yog tag nrho cov nyob rau hauv qeb no. Thematic maps, tseem hu ua daim ntawv qhia tshwj xeeb, qhia txog thaj chaw faib khoom ntawm ib lub ntsiab lus lossis qhov tshwm sim
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm
Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
Dissociation, nyob rau hauv chemistry, sib cais ntawm ib yam khoom mus rau hauv atoms los yog ions. Thermal dissociation tshwm sim ntawm qhov kub thiab txias. Piv txwv li, hydrogen molecules (H 2) dissociate rau hauv atoms (H) ntawm kub heev; ntawm 5,000 ° K txog 95% ntawm cov molecules hauv cov qauv ntawm hydrogen yog dissociated rau hauv atoms
Cov xim dab tsi yog cov khoom khib nyiab ntawm lub rooj zaum?
Nyob rau hauv lub sij hawm lub sij hawm saum toj no, dub squares qhia hais tias cov khoom uas yog solids ntawm chav tsev kub (kwv yees li 22ºC) *, cov nyob rau hauv xiav squares yog kua nyob rau hauv chav tsev kub, thiab cov nyob rau hauv liab squares yog gases nyob rau hauv chav tsev kub