Video: Lub wavelength ntawm mercury yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Tsuas yog cov teeb ntawm 253nm yog siv tau. Fused silica yog siv rau hauv kev tsim khoom kom 184 nm teeb los ntawm absorbed. Nyob rau hauv nruab nrab-siab mercury - vapor teeb, cov kab ntawm 200-600 nm tam sim no.
Emission kab spectrum.
| Lub wavelength (nm) | Lub npe (saib photoresist) | Xim |
|---|---|---|
| 435.8 | G-kab | xiav |
| 546.1 | ntsuab | |
| 578.2 | daj-txiv kab ntxwv |
Tsuas yog li ntawd, lub wavelength ntawm mercury yog dab tsi?
Qhov tseem ceeb mercury kab yog 435.835 nm (xiav), 546.074 nm (ntsuab), thiab ib khub ntawm 576.959 nm thiab 579.065 nm (daj-txiv kab ntxwv). Muaj ob txoj kab xiav xiav ntawm 404.656 nm thiab 407.781 nm thiab kab tsis muaj zog ntawm 491.604 nm.
Qhov thib ob, puas yog mercury teeb monochromatic? Yog ib mercury teeb qhov chaw monochromatic los yog polychromatic? A mercury vapor teeb qhov chaw muab tawm teeb nyob rau hauv ntau spectrum thiab txawm nyob rau hauv lub invisible spectrum li UV hluav taws xob. Yog li ntawd, nws yog polychromatic teeb qhov chaw.
Piv txwv li, lub teeb xim dab tsi Mercury emit?
xiav
Puas yog mercury vapor teeb tau raug txiav tawm?
Raws li txoj cai, mercury vapor kev ruaj ntseg teeb yog raug phased tawm los "tiv thaiv ib puag ncig" thiab "txhim kho lub zog efficiency" hauv teeb pom kev zoo . Txawm hais tias cov qij tseem muaj dav dav, Tebchaws Asmeskas txwv tsis pub muag mercury vapor ballasts nyob rau hauv 2008.
Pom zoo:
Lub luag haujlwm ntawm CDK yog dab tsi hauv lub cev ua haujlwm ntawm tes tshwj xeeb hauv lub voj voog ntawm tes?
Los ntawm phosphorylation, Cdks teeb liab lub xov tooj ntawm tes uas nws tau npaj kom dhau mus rau theem tom ntej ntawm lub voj voog ntawm tes. Raws li lawv lub npe qhia, Cyclin-Dependent Protein Kinases yog nyob ntawm cyclins, lwm chav kawm ntawm kev tswj hwm cov protein. Cyclins khi rau Cdks, ua kom cov Cdks rau phosphorylate lwm cov molecules
Dab tsi yog kev sib raug zoo ntawm wavelength zaus thiab qhov ceev ntawm lub teeb?
Lub wavelength thiab zaus ntawm lub teeb yog ze ze. Qhov siab dua qhov zaus, qhov luv dua lub wavelength. Vim tias txhua lub teeb tsis txav mus los ntawm lub tshuab nqus tsev ntawm tib lub nrawm, tus naj npawb ntawm nthwv dej crests dhau los ntawm ib qho taw tes hauv ib thib ob nyob ntawm qhov wavelength
Ob qhov tseem ceeb ntawm lub voj voog ntawm tes yog dab tsi thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Muaj ob theem tseem ceeb hauv lub voj voog ntawm tes. Thawj theem yog interphase thaum lub cell loj hlob thiab replicates nws DNA. Qhov thib ob yog theem mitotic (M-Phase) thaum lub sijhawm cell faib thiab hloov ib daim qauv ntawm nws cov DNA mus rau ob lub hlwb zoo tib yam
Dab tsi yog qhov txawv ntawm wavelength ntawm lub teeb liab thiab lub teeb violet?
Violet lub teeb yog hluav taws xob hluav taws xob hluav taws xob nrog wavelengths ntawm 410 nanometers thiab lub teeb liab muaj awavelength ntawm 680 nanometers. Qhov ntau ntawm wavelengths (400 - 700 nm) ntawm lub teeb pom kev yog nyob nruab nrab ntawm lub electromagnetic spectrum (Fig.1)
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua