2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Ferromagnetism tau pom nyob hauv kev hloov pauv hlau thiab qee qhov ntawm lawv cov tebchaw . Nyob rau hauv antiferromagnetism, lub sij hawm sib nqus taw tes nyob rau hauv qhov opposite kev taw qhia. Vim li no, qhov sib nqus susceptibility ntawm ib yam khoom txo qis rau qee qhov. Antiferromagnetism pom nyob rau hauv cov ntsev ntawm ions xws li Mn+2, Fe+ 3
Yuav ua li cas cov khoom qhia ferromagnetism?
Ferromagnetism yog ib hom hlau nplaum uas cuam tshuam nroghlau, cob alt, npib tsib xee, thiab qee cov alloys lossis cov tebchaw muaj ib lossis ntau ntawm cov ntsiab lus no. Nws kuj tshwm sim hauv gadolinium thiab ob peb lwm yam tsis tshua muaj hauv ntiaj teb.
Yuav ua li cas koj thiaj paub yog tias ib yam khoom yog ferromagnetic?
Cov khoom ntawm Ferromagnetic Khoom
Cov atoms ntawm cov tshuaj ferromagnetic muaj tas mus li dipole tam sim no nyob rau hauv cov thawj. Atomic dipoles nyob rau hauv ferromagnetic tshuaj yog taw qhia nyob rau hauv tib txoj kev raws li sab nraud magnetic teb. Lub sijhawm sib nqus dipole yog qhov loj thiab nyob rau hauv cov kev taw qhia ntawm magnetizing teb.
Cov tshuaj hauv qab no twg yog ferromagnetic?
Iron, cob alt, nickel thiab CrO2 yog hu ua ferromagnetic tshuaj.
Yuav ua li cas yog ib yam khoom qhia Ferrimagnetism?
Yog li, cov tshuaj ferrimagnetic qhia tau zoo dua cov hlau nplaum zoo dua li cov tshuaj tiv thaiv ferromagnetic vim lawv muaj qhov tsis yog xoom net magnetic dipoleib pliag.. Piv txwv ntawm Antiferromagnetic tshuaj muaj xws li hematite, hlau xws li chromium, alloys xws li FeMn (hlau manganese), thiab oxides xws li NiO (nickel oxide).
Pom zoo:
Cov ntawv xov xwm pom nyob rau hauv cov ntawv xov xwm nyob qhov twg?
Editorials feem ntau yog luam tawm ntawm nplooj ntawv nplooj siab, hu ua nplooj ntawv kho, uas feem ntau sau cov ntawv rau tus editor los ntawm cov tswv cuab ntawm pej xeem; nplooj ntawv tawm tsam nplooj ntawv no yog hu ua nplooj ntawv op-ed thiab nquag muaj cov lus xav (li no lub npe xav daim) los ntawm cov kws sau ntawv tsis ncaj qha koom nrog … Lub hom phiaj ntawm kev sau ntawv hauv xov xwm yog dab tsi?
Yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pom kev pom?
Txawm li cas los xij, corneal collagen cross-linking - cov txheej txheem qib siab tau pom zoo los ntawm US Food and Drug Administration (FDA) hauv xyoo 2016 - tuaj yeem txhim kho qhov pom kev hauv cov neeg mob txhua hnub nyoog. Corneal collagen cross-linking (CXL) tsis yog kho rau keratoconus, tab sis nws tuaj yeem pab tiv thaiv tus mob kom tsis txhob mob hnyav.
Thaum ib yam khoom uas tsis yog tib neeg muab rau tib neeg tus yam ntxwv?
Personification yog qhov tshwm sim ntawm tib neeg cov yam ntxwv, yam ntxwv, lossis kev coj tus cwj pwm rau cov tsis yog tib neeg, yog tsiaj txhu, yam tsis muaj sia, lossis txawm tias cov ntsiab lus tsis muaj tseeb. Qhov twg hauv qab no muab tib neeg yam ntxwv rau yam tsis yog tib neeg?
Leej twg detering nyob rau hauv tag nrho cov nyob ntsiag to nyob rau sab hnub poob pem hauv ntej?
Detering yog tus neeg ua liaj ua teb los ntawm Txhua Tus Neeg Tsis Txaus Siabntawm Sab Hnub Poob los ntawm Erich Maria Remarque. Nws muaj siab mos siab muag, tshwj xeeb tshaj yog thaum nws los txog rau nees. Nws muaj kev kub ntxhov loj heev thaum nws hnov cov nees quaj thiab txawm sim tua lawv kom kawg lawv txoj kev txom nyem.
Leej twg yog bennie nyob rau hauv lub raisin nyob rau hauv lub hnub?
Beneatha Younger ("Bennie") Mama tus ntxhais thiab W alter tus muam. Beneatha yog ib tug neeg txawj ntse. Nees nkaum xyoo, nws mus kawm ntawv qib siab thiab kawm tau ntawv zoo dua li lwm cov Tsev Neeg Hluas. Qee qhov ntawm nws tus kheej kev ntseeg thiab kev xav tau ua rau nws nyob deb ntawm niam txiv.
