Video: Dab tsi yog cov ntsiab lus ntawm kev sib txuas nkhaus?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A kev sib xyaw nkhaus muaj ob (los yog ntau tshaj) ncig nkhaus nruab nrab ntawm ob lub ntsiab tangent koom ntawm qhov taw tes ntawm kev sib xyaw nkhaus (PCC). Curve ntawm PC raug xaiv ua 1 (R1, L1, T1, thiab lwm yam) thiab nkhaus ntawm PT raug xaiv los ua 2 (R2, L2, T2, thiab lwm yam). x thiab y tuaj yeem pom los ntawm daim duab peb sab V1-V2-PIB.
Ua kom pom qhov no, dab tsi yog qhov nkhaus nkhaus?
Kev txhais ntawm kev sib xyaw nkhaus .:ib nkhaus ua los ntawm ob lossis ntau lub voj voos ntawm qhov luv luv lossis ntev dua radii, koom nrog tangentially tsis thim rov qab curvature, thiab siv rau qee qhov kev tsheb ciav hlau thiab txoj kev loj raws li kev yooj yim. nkhaus los muab kev hloov pauv sai sai ntawm tangent mus rau tag nrho nkhaus los yog vice versa.
Qhov thib ob, muaj pes tsawg hom nkhaus muaj? Muaj ob hom nkhaus muab feem ntau rau kev nplij siab thiab yooj yim ntawm cov neeg tsav tsheb hauv txoj kev uas yog: Kab rov tav Curve . Ntsug Curve.
Tom qab ntawd, qhov twg yog qhov sib xyaw nkhaus muab?
Lub successive arcs koom tangentially yam tsis muaj qhov thim rov qab curvature thiab yog siv los muab kev hloov pauv ntawm cov kab ncaj nraim mus rau nkhaus . Compound nkhaus yog siv nyob rau hauv txoj kev tsheb ciav hlau, thiab feem ntau ntawm cov kev sib txuas nkhaus muaj nyob rau hauv kev tsim ntawm interchanging loops thiab ramps.
Txoj kev curvy hu ua dab tsi?
Xws li ib txoj kev kuj yog hu ua , nyob rau hauv cov nqe lus uas paub, a curvy roob txoj kev . Ntau technically, nws yog ib qho txoj kev uas muaj ntau yam switchbacks los yog hairpin nkhaus. Switchback tuaj yeem xa mus rau tag nrho ntawm qhov no txoj kev.
Pom zoo:
Dab tsi yog ib qho piv txwv ntawm cov khoom sib txuas ntawm kev sib npaug?
Kev rho tawm (Tsis yog Commutative) Tsis tas li ntawd, kev faib, kev sib xyaw ntawm cov dej num thiab cov lej sib npaug yog ob qho piv txwv zoo uas tsis yog kev sib txuas
Dab tsi yog qhov sib txawv ntawm qhov sib txawv ntawm cov kab sib txuas thiab ntau qhov sib piv?
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Dab tsi yog lub ntsiab lus ntawm kev hloov pauv lom neeg hauv cov ntsiab lus ntawm allele zaus?
Microevolution, los yog evolution ntawm ib tug me me, yog txhais raws li ib tug kev hloov nyob rau hauv lub zaus ntawm noob variants, alleles, nyob rau hauv ib tug pej xeem ntau tiam. Lub teb ntawm biology uas kawm txog allele frequencies nyob rau hauv cov pejxeem thiab yuav ua li cas lawv hloov lub sij hawm yog hu ua pej xeem noob caj noob ces
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