Video: Cov hlau puas yooj yim tawg?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov hlau ua tsawg ductile thiab, nyob rau hauv ib qho kev nkag siab, ua nyuaj. Tab sis thaum strain hardening ua rau nws tsawg yooj yim rau cov hlau kom deform, nws kuj ua rau cov hlau nkim ntau. Txhaum hlau tuaj yeem tawg , los yog poob, heev yooj yim.
Ib yam li ntawd, nws raug nug, puas hlau tawg?
Hlau yog feem ntau muaj zog thiab yog malleable ntau dua li nkig. Yog li, cam khwb cia hlau yog nkig li cam khwb cia. Txaus cuam tshuam thiab nws yuav tawg . Qee cov hlau yog nkig, thiab.
Tsis tas li ntawd, puas hlau puas thaum khov? Tam sim no thaum koj khov txhua yam khoom nws ua rau nws nyuaj rau cov khoom txav raws nws lub dav hlau plam thiab thaum kawg lub zog yuav tsum tau tso cai rau cov khoom hloov raws nws lub dav hlau plam ntau dua li cov khoom siv. ua tau kov thiab nws yuav tawg. Yog li ntawd, koj ua tau ua rau hlau tawg los ntawm khov nws.
Xav txog qhov no, dab tsi hlau tawg yooj yim?
Ib yam khoom uas muaj qhov nyiam tawg yooj yim los yog mam li nco dheev tsis muaj kev txuas ntxiv ua ntej. Cov piv txwv zoo yog cam khwb cia hlau, pob zeb, siab carbon steels, ceramics, thiab qee cov polymers xws li urea formaldehyde (UF).
Thaum kub li cas hlau tawg?
Lub ductile mus rau brittle hloov kub yog nyob ntawm qhov muaj pes tsawg leeg ntawm cov hlau . Hlau yog feem ntau siv hlau uas qhia txog tus cwj pwm no. Rau qee qhov steels hloov pauv kub tuaj yeem nyob ib ncig ntawm 0 ° C, thiab nyob rau lub caij ntuj no kub nyob rau hauv qee qhov chaw ntawm lub ntiaj teb no tuaj yeem yog hauv qab no.
Pom zoo:
Puas yooj yim diffusion siv cov protein raws?
Saib ze ze: Cov neeg nqa khoom yooj yim Diffusion Muaj ob hom kev sib koom ua ke ntawm cov neeg nqa khoom yooj yim: Channel proteins thauj tsuas yog dej lossis qee yam ions. Lawv ua li ntawd los ntawm kev tsim cov protein-lined passageway hla daim nyias nyias. Ntau cov dej molecules lossis ions tuaj yeem hla hauv ib cov ntaub ntawv los ntawm cov channel ntawm tus nqi nrawm heev
Cov khoom puas tuaj yeem muab cais ua cov khoom yooj yim?
Cov ntsiab lus tsis tuaj yeem tawg mus rau hauv cov khoom yooj yim. Ib yam li ntawd, ib lub ntsiab lus tsis tuaj yeem hloov pauv mus rau hauv ib lub caij sib txawv. Cov khoom siv tshuaj yog qhov yooj yim ntawm cov khoom
Puas yooj yim diffusion siv cov proteins channel?
Saib ze ze: Cov neeg nqa khoom yooj yim Diffusion Muaj ob hom kev sib koom ua ke ntawm cov neeg nqa khoom yooj yim: Channel proteins thauj tsuas yog dej lossis qee yam ions. Lawv ua li ntawd los ntawm kev tsim cov protein-lined passageway hla daim nyias nyias. Ntau cov dej molecules lossis ions tuaj yeem hla hauv ib cov ntaub ntawv los ntawm cov channel ntawm tus nqi nrawm heev
Vim li cas cov hlau ntshiab tuaj yeem ua tau yooj yim?
Lawv yog cov malleable, uas txhais tau tias lawv tuaj yeem khoov thiab zoo li yooj yim. Hauv cov hlau ntshiab, cov atoms tau teeb tsa hauv cov txheej txheem kom huv si, thiab thaum lub zog siv rau cov hlau (xws li raug ntaus nrog rauj), cov khaubncaws sab nraud povtseg ntawm cov hlau atoms tuaj yeem xaub rau ib leeg, muab cov hlau tshiab
Puas yog cov lus ntsev acidic lossis yooj yim?
Properties of Table Salt: Rooj ntsev yog cov khoom tsim los ntawm neutralization ntawm cov kua qaub los ntawm lub hauv paus. Yog li nws tsis yog Acid lossis Base. Koj tuaj yeem siv pH Scale los qhia seb nws cov kua qaub lossis lub hauv paus