Video: Qhov kev hloov pauv twg yuav hloov daim duab A rau hauv daim duab B?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ob daim duab tau hais tias yuav tsum sib haum yog tias ib tus tuaj yeem tau txais los ntawm lwm tus los ntawm ib ntu ntawm txhais lus , reflections, thiab rotations. Cov duab sib xws muaj qhov loj thiab zoo tib yam. Txhawm rau hloov daim duab A rau hauv daim duab B, koj yuav tsum xav txog nws hla y-axis thiab txhais ib chav nyob rau sab laug.
Kuj nug, qhov kev hloov pauv twg tuaj yeem hloov pauv thaj tsam ntawm daim duab?
Ib qho kev hloov pauv hloov qhov loj, cov duab, lossis txoj haujlwm ntawm daim duab thiab tsim ib daim duab tshiab. Kev hloov pauv geometry yog nruj lossis tsis nruj; Lwm lo lus rau kev hloov pauv nruj yog "isometry". Ib qho isometry, xws li a kev sib hloov , txhais lus , los yog xav txog , tsis hloov qhov loj lossis cov duab ntawm daim duab.
Ib sab saum toj no, hom kev hloov pauv twg hloov pauv cov duab ntawm daim duab? Kev hloov pauv thiab Isometry A kev hloov pauv yog ib txoj kev uas kev hloov txoj hauj lwm (thiab tejzaum nws loj thiab orientation) ntawm a puab . Muaj plaub hom kev hloov pauv : reflection, rotation, translation and enlargement.
Kuj paub yog, yuav ua li cas tshwm sim thaum koj siv ntau tshaj ib qho kev hloov pauv rau ib daim duab?
Cov lus teb tau: Cov kev hloov pauv tshwm sim sequentially, thiab kev txiav txim tseem ceeb. Qhov tshwm sim yuav zoo ib yam li ib leeg kev hloov pauv.
Cov kev hloov pauv twg yuav ua rau daim duab geometric uas yog qhov loj thiab zoo tib yam?
Congruent Triangles (thiab lwm cov duab) Lawv yog cov tib yam loj thiab zoo li. Yog tias koj swb daim duab peb sab A mus rau sab xis, nws yuav npog daim duab peb sab B. Qhov no hu ua a txhais lus.
Pom zoo:
Qhov kev hloov pauv twg yog qhov sib npaug ntawm daim duab peb sab mus rau nws tus kheej?
Nqa lub equilateral daim duab peb sab mus rau nws tus kheej. Yog li, cov no yog cov kev xaiv teb cov lus teb kom raug: kev sib hloov ntawm 120 ° counterclockwise. tig 120 ° clockwise
Vim li cas tom qab kev hloov pauv kev hloov pauv tseem ceeb?
Kev hloov pauv tom qab kev txhais lus (PTMs) xws li glycosylation thiab phosphorylation ua lub luag haujlwm tseem ceeb ntawm kev ua haujlwm ntawm hemostatic proteins thiab tseem ceeb heev hauv kev teeb tsa kab mob. Xws li theem nrab hloov pauv rau cov proteins hemostatic muaj ntau yam cuam tshuam rau lawv lub peev xwm los cuam tshuam nrog lwm cov proteins
Dab tsi yog qhov txawv ntawm ib puag ncig kev hloov pauv thiab kev hloov pauv qub txeeg qub teg?
Qhov sib txawv ntawm cov yam ntxwv ntawm cov tib neeg ntawm tib hom yog hu ua variation. Qhov no yog inherited variation. Qee qhov kev hloov pauv yog qhov tshwm sim ntawm qhov sib txawv ntawm ib puag ncig, lossis ib tus neeg ua dab tsi. Qhov no yog hu ua environmental variation
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
Thaum twg cov khoom hloov pauv ncaj qha mus rau cov roj, qhov kev hloov ntawm lub xeev hu ua?
Sublimation yog tus txheej txheem ntawm transformation ncaj qha los ntawm cov khoom theem mus rau lub gaseous theem, tsis dhau los ntawm ib tug nruab nrab kua theem. Tsis tas li ntawd, nyob rau hauv qhov siab ntawm qhov siab ntawm triple point, qhov kub thiab txias yuav ua rau cov khoom hloov pauv mus rau cov roj yam tsis tau dhau los ntawm cov dej hauv cheeb tsam