Video: Dab tsi yog qhov xov tooj cua tshaj tawm?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Radioactive series (paub tias yog a xov tooj cua cascades) yog peb qhov tshwm sim xov tooj cua decay chains thiab ib tug dag xov tooj cua decay saw ntawm unstable hnyav atomic nuclei uas lwj los ntawm ib theem ntawm alpha thiab beta decays kom txog rau thaum ib tug ruaj khov nucleus tiav.
Nyob rau hauv no, dab tsi yog ib tug radioactive decay series?
radioactive series ib tug succession ntawm lub ntsiab pib nyob rau hauv lub radioactive lwj ntawm niam txiv, raws li thorium lossis uranium, txhua tus uas lwj mus rau tom ntej kom txog rau thaum lub caij ruaj khov, feem ntau yog txhuas, yog tsim.
Ib yam li ntawd, lub ntsiab lus twg yog qhov khoom kawg ntawm txhua lub xov tooj cua hauv ntuj? Cov khoom kawg ntawm txhua lub xov tooj cua yog ib qho ruaj khov keeb zoo li Pb or Tl.
Ib yam li ntawd, tej zaum koj yuav nug tias, xov tooj cua yog dab tsi?
Hauv physics, a xov tooj cua lwj saw hlau yog ib ntu ntawm cov atomic nuclei tsis ruaj khov thiab lawv cov qauv ntawm cov decays, uas ua rau lub nucleus ruaj khov. Qhov chaw ntawm cov nuclei tsis ruaj khov no txawv, tab sis feem ntau engineers cuam tshuam nrog ib txwm tshwm sim xov tooj cua lwj chains lub npe hu ua radioactive series.
Dab tsi ntawm cov hauv qab no yog 4n 1 xov tooj cua?
Nyob rau hauv txhua series, yog li ntawd, cov neeg coob coob ntawm cov tswv cuab yuav raug qhia raws li plaub lub sij hawm ib tug tsim nyog integer (n) ntxiv rau qhov tas mus li rau series; Yog li, cov thorium series qee zaum hu ua 4n series; cov neptunium series, 4n + 1; uranium series, 4n + 2; thiab actinium series, 4n + 3.
Pom zoo:
Dab tsi yog tsib kauj ruam koom nrog hauv kev tshaj tawm xov tooj ntawm tes?
Kev sib txuas lus los ntawm extracellular signals feem ntau muaj rau cov kauj ruam: (1) synthesis thiab (2) tso tawm cov signaling molecule los ntawm lub signaling cell; (3) thauj cov teeb liab mus rau lub hom phiaj ntawm tes; (4) nrhiav pom ntawm lub teeb liab los ntawm ib qho tshwj xeeb receptor protein; (5) kev hloov pauv hauv cellular metabolism, kev ua haujlwm, lossis kev loj hlob
Dab tsi yog qhov txawv ntawm tus neeg teb xov tooj thiab mod?
Dab tsi yog qhov txawv ntawm cov neeg ua haujlwm /,, thiab MOD? Muab piv txwv ntawm txhua tus. / yog kev faib tsis tu ncua 15/3 = 5. MOD sawv cev rau Modulus, thiab nws muab rau koj qhov seem ntawm qhov teeb meem faib 26 MOD 5 = 1. yog lwm txoj hauv kev faib, nws tsis suav cov lej hauv cov lus teb, yog li cov lus teb tsuas yog tus lej xwb, 52 = 2
Yuav ua li cas cov khoom siv caj ces hauv txhua lub xov tooj tshiab tsim los ntawm kev faib tawm ntawm tes sib piv nrog cov khoom siv caj ces hauv lub xov tooj qub?
Mitosis tshwm sim nyob rau hauv ob lub nuclei uas zoo tib yam rau thawj nucleus. Yog li, ob lub hlwb tshiab tsim tom qab kev faib tawm ntawm tes muaj tib yam khoom siv caj ces. Thaum lub sij hawm mitosis, chromosomes condense los ntawm chromatin. Thaum saib nrog lub microscope, chromosomes pom nyob rau hauv lub nucleus
Dab tsi yog qhov yuam kev loj tshaj plaws yog tias Irina ntsuas qhov ntev ntawm nws lub qhov rais li 3.35 feet qhov yuam kev loj tshaj plaws yog taw?
Kev daws: Qhov yuam kev loj tshaj plaws hauv kev ntsuas ntsuas tau txhais tias yog ib nrab ntawm qhov ntsuas ntsuas
Yuav ua li cas koj pom qhov nruab nrab tshaj tawm ntawm qhov tshaj tawm vs lub sijhawm teeb?
Qhov chaw nyob hauv qab qhov nrawm / lub sijhawm nkhaus yog tag nrho cov kev hloov pauv. Yog tias koj faib qhov ntawd los ntawm kev hloov pauv hauv lub sijhawm, koj yuav tau txais qhov nruab nrab tshaj tawm. Velocity yog vector daim ntawv ntawm kev ceev. Yog tias qhov nrawm ib txwm tsis yog qhov tsis zoo, ces qhov nruab nrab tshaj tawm thiab qhov nruab nrab ceev yog tib yam