Cov txheej txheem:
Video: Koj yuav hloov qhov kev siv ntawm ib qho xim li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Koj ua tau hloov qhov siv ntawm ib qho xim , ua kom duller lossis ntau nruab nrab los ntawm kev ntxiv grey rau lub xim . Koj tuaj yeem ua tau hloov qhov siv ntawm ib qho xim los ntawm kev ntxiv nws complement (qhov no yog qhov xim pom ncaj qha opposite ntawm cov tsoos xim log). Thaum twg hloov xim txoj kev no, cov xim tsim yog hu ua lub suab nrov.
Raws li, koj ntsuas qhov hnyav ntawm cov xim li cas?
Cov cuab yeej
- Lub tristimulus colorimeter ntsuas qhov tristimulus qhov tseem ceeb ntawm ib xim.
- Lub spectroradiometer ntsuas qhov tseeb spectral radiance (kev siv) lossis irradiance ntawm lub teeb ci.
- Lub spectrophotometer ntsuas qhov spectral reflectance, transmittance, lossis txheeb ze irradiance ntawm cov qauv xim.
Tsis tas li ntawd, xim twg muaj kev siv ntau tshaj? Qhov siab dua qhov zaus, qhov oscillations sai dua thiab yog li lub zog ntau dua. Yog li ntawd, lub siab tshaj plaws-frequency ultra- violet lub teeb (los yog qhov qis tshaj wavelength) yog violet . Txawm li cas los xij, lub teeb pom kev siab tshaj plaws yuav tsum yog xiav xiav.
Qhov thib ob, tus nqi xim yog dab tsi?
Tus nqi txhais tau tias yog tus txheeb ze lightness lossis tsaus ntuj ntawm a xim . Nws yog ib qho cuab yeej tseem ceeb rau tus tsim / kws kos duab, nyob rau hauv txoj kev uas nws txhais daim ntawv thiab tsim spatial illusions. Qhov sib txawv ntawm tus nqi cais cov khoom nyob rau hauv qhov chaw, thaum gradation ntawm tus nqi qhia qhov loj thiab contour ntawm ib tug contiguous nto.
Xim xim yog dab tsi?
Ntsuab, txiv kab ntxwv, daj, thiab xiav - txhua qhov no yog a xim , a xim los yog ib qho ntxoov ntxoo uas muaj tseeb. Ib tug zaj sawv qhia qhov melting ntawm ib tug xim mus rau lwm, los ntawm liab mus rau violet, thiab tag nrho cov ntxoov nyob rau hauv nruab nrab. Lub npe xim txhais tau tias ob qho tib si a xim thiab ib tug ntxoov ntxoo ntawm a xim.
Pom zoo:
Koj siv kev hloov pauv li cas hauv qhov kev txiav txim?
Siv cov kev hloov pauv hauv qhov kev txiav txim no: Pib nrog cov kab lus (saib qhov ua tau kab rov tav ua haujlwm) (Qhov no tuaj yeem yog txoj haujlwm ntsug yog tias lub zog ntawm x tsis yog 1.) Deal nrog kev sib npaug (stretch lossis compression) Deal nrog negation (reflection) Deal nrog Ntxiv / rho tawm ( ntsug hloov)
Yuav ua li cas koj thiaj paub tias kev hloov pauv yog ib qho rau ib qho?
Thaum ib tug linear transformation yog piav nyob rau hauv lub sij hawm ntawm ib tug matrix nws yog ib qho yooj yim los txiav txim seb lub linear transformation yog ib-rau-ib los yog tsis los ntawm kev tshuaj xyuas cov linear dependence ntawm txhua kab ntawm lub matrix. Yog hais tias cov kab yog linearly ywj siab, linear transformation yog ib-rau-ib
Cov kev hloov ntawm lub cev txawv ntawm cov tshuaj hloov pauv li cas muab ib qho piv txwv ntawm txhua tus?
Kev hloov tshuaj lom neeg tshwm sim los ntawm cov tshuaj tiv thaiv tshuaj, thaum lub cev hloov pauv yog thaum cov teeb meem hloov pauv tab sis tsis yog tshuaj lom neeg. Piv txwv ntawm kev hloov tshuaj lom neeg yog hlawv, ua noj, xeb, thiab rotting. Piv txwv ntawm kev hloov lub cev yog boiling, melting, khov, thiab shredding
Thaum ib qho kev sib cais ua rau muaj kev hloov pauv hloov pauv ntawm lub ntiaj teb nce ntxiv?
Txij li thaum lub kaw lus raug cais tawm, tsis muaj cua sov tuaj yeem khiav tawm (tus txheej txheem yog li adiabatic), yog li thaum lub zog ntws tawm hauv lub cev, qhov entropy ntawm qhov system nce, piv txwv li Δ Ssys> 0. Yog li ntawd, lub entropy ntawm lub system yuav tsum tau nce rau ib tug spontaneous txheej txheem nyob rau hauv no cais system
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