Chiedza chezuva is electromagnetic wave, yakakamurwa kuita chiedza chinooneka uye chiedza chisingaoneki. Chiedza chinooneka chinoreva izvo ziso rakashama rinogona kuona, zvakadai sechiedza chemuraraungu chine mavara manomwe chetsvuku, orenji, yero, yegirini, yebhuruu, indigo, uye violet muchiedza chezuva; chiedza chisingaoneki chinoreva zvisingagoni kuonekwa neziso rakashama, zvakadai seultraviolet, infrared, nezvimwewo. Chiedza chezuva chatinowanzoona neziso rakashama. Yakave yakasimbiswa kuti chiedza chezuva chichena chinoumbwa nemavara manomwe echiedza chinooneka uye asingaoneki ultraviolet rays, X-rays, α, β, γ, infrared rays, microwaves uye mafungu ekutepfenyura. Chimwe nechimwe chikwata chechiedza chezuva chine mabasa akasiyana uye maitiro emuviri. Zvino, vaverengi vanodiwa, ndapota teverai munyori kuti ataure nezve ultraviolet mwenje.
Zvinoenderana neyakasiyana biological mhedzisiro, ultraviolet mwaranzi yakakamurwa kuita mana mabhendi zvichienderana newavelength: refu-wave UVA, yepakati-wave UVB, pfupi-wave UVC, uye vacuum wave UVD. Kurebesa kwesairi, ndiko kusimba kwekugona kupinda mukati.
Long-wave UVA, ine wavelength ye320 kusvika 400 nm, inonziwo refu-wave dark spot effect ultraviolet light. Iine simba rinopinza rakasimba uye rinogona kupinda mugirazi uye kunyange mamita 9 emvura; rinogara gore rose, zvisinei kuti kune makore kana zuva, masikati kana husiku.
Inopfuura 95% yemaranzi eultraviolet ayo ganda redu rinosangana nawo zuva nezuva ndeye UVA. UVA inogona kupinda mu epidermis uye kurwisa dermis, zvichikonzera kukanganisa kwakanyanya kune collagen uye elastin muganda. Zvakare, maseru edermal ane hurombo hwekuzvidzivirira, saka huwandu hushoma hweUVA hunogona kukonzera kukuvara kukuru. Nekufamba kwenguva, matambudziko akadai sekudonha kweganda, wrinkles, uye kubuda kwecapillaries kunoitika.
Panguva imwecheteyo, inogona kumisikidza tyrosinase, zvichitungamira kune nekukurumidza melanin deposition uye nyowani melanin kuumbwa, zvichiita kuti ganda rive rakasviba uye kushaya kupenya. UVA inogona kukonzera kukuvadzwa kwenguva refu, kusingagumi uye kusingaperi uye kuchembera kweganda nguva isati yakwana, saka inonziwo kuchembera mwaranzi. Naizvozvo, UVA zvakare ndiyo yavelength inokuvadza zvakanyanya paganda.
Zvose zvine mativi maviri. Kubva kune imwe maonero, UVA ine maitiro ayo akanaka. UVA ultraviolet mwaranzi ine wavelength ye360nm inopindirana nephototaxis mhinduro curve yezvipembenene uye inogona kushandiswa kugadzira riva retumbuyu. UVA ultraviolet mwaranzi ine wavelength ye300-420nm inogona kupfuura nepakati pegirazi remwenje marambi anocheka zvachose mwenje unooneka, uye unongopenya pedyo-ultraviolet mwenje wakatarisana ne365nm. Inogona kushandiswa mukuzivikanwa kweore, kushongedzwa kwesiteji, kuongororwa kwemari uye dzimwe nzvimbo.
Medium wave UVB, wavelength 275 ~ 320nm, inozivikanwawo sepakati wave erythema effect ultraviolet chiedza. Kuenzaniswa nekupinda kweUVA, inoonekwa ine mwero. Hurefu hwayo hupfupi huchatorwa negirazi rinoonekera. Chizhinji chechiedza chepakati-wave ultraviolet chiri muchiedza chezuva chinotorwa ne ozone layer. Chete isingasviki 2% inokwanisa kusvika pasi penyika. Ichanyanya kusimba muzhizha nemasikati.
Kufanana neUVA, ichaitawo oxidize iyo inodzivirira lipid layer ye epidermis, ichiomesa ganda; uyezve, ichaita denature nucleic acids uye mapuroteni ari mumasero epidermal, zvichikonzera zviratidzo zvakadai seacute dermatitis (kureva, kupisa kwezuva), uye ganda richatsvuka. , kurwadziwa. Muzviitiko zvakakomba, zvakadai sokugara muzuva kwenguva refu, zvinogona kutungamirira nyore nyore kenza yeganda. Mukuwedzera, kukuvadzwa kwenguva refu kubva kuUVB kunogonawo kukonzera kuchinja kwema melanocytes, zvichiita kuti mavara ezuva akaoma kubvisa.
Nekudaro, vanhu vakawana kuburikidza netsvagiridzo yesainzi kuti UVB inobatsira zvakare. Ultraviolet mwenje wekuchengetedza hutano uye marambi ekukura kwezvirimwa anogadzirwa neakasarudzika akajeka epepuru girazi (iyo isingafambisi mwenje pazasi 254nm) uye phosphors ine peak kukosha padyo ne300nm.
Short-wave UVC, ine wavelength ye200 ~ 275nm, inonziwo short-wave sterilizing ultraviolet chiedza. Iyo ine simba risina simba rekupinza uye haigoni kupinda mukati megirazi rakajeka uye mapurasitiki. Kunyange bepa rakatetepa rinogona kuivhara. Mwaranzi ye<em>short-wave ye<em>ultraviolet iri muchiedza chezuva inodokunyudzwa chose chose ne<em>ozone layer isati yasvika pasi.
Kunyange zvazvo UVC muzvisikwa inobatwa ne ozone layer isati yasvika pasi, kukanganisa kwayo paganda hakuna basa, asi pfupi-wave ultraviolet rays haigoni kuvhenekera muviri wemunhu zvakananga. Kana yakafumurwa zvakananga, ganda rinopiswa munguva pfupi, uye kuratidzwa kwenguva refu kana yakakwirira-yakanyanya kunogona kukonzera kenza yeganda.
Mhedzisiro yemwaranzi yeultraviolet muUVC bhendi yakakura kwazvo. Semuenzaniso: UV germicidal marambi anoburitsa UVC mapfupi-wave ultraviolet mwaranzi. Short-wave UV inoshandiswa zvakanyanya muzvipatara, air conditioning system, disinfection makabhati, michina yekurapa mvura, zvitubu zvekunwa, mapombi ekuchenesa tsvina, madziva ekushambira, chikafu nechinwiwa kugadzira uye kurongedza midziyo, mafekitori ezvekudya, mafekitori ezvizoro, mafekitori emukaka, mafekitori, mafekitori ezvinwiwa, Nzvimbo dzakaita semabheki nemakamuri ekuchengetera anotonhora.
Muchidimbu, zvakanakira ultraviolet chiedza ndezvi: 1. Disinfection uye sterilization; 2. Kurudzira kukura kwemapfupa; 3. Yakanakira ruvara rweropa; 4. Dzimwe nguva, inogona kurapa zvimwe zvirwere zveganda; 5. Inogona kukurudzira mineral metabolism uye kuumbwa kwevhitamini D mumuviri; 6., kukurudzira kukura kwezvirimwa, nezvimwe.
Izvo zvisingabatsiri zve ultraviolet rays ndezvi: 1. Kuonekwa kwakananga kunokonzera kukwegura kweganda uye wrinkles; 2. Mavara eganda; 3. Dermatitis; 4. Nguva refu uye yakawanda yakawanda yekuratidzwa zvakananga inogona kukonzera kenza yeganda.
Nzira yekudzivirira sei kukuvadza kweUVC ultraviolet rays kumuviri wemunhu? Sezvo UVC ultraviolet mwaranzi ine yakanyanya kusimba kupinda, inogona kuvharika zvachose neyakajairwa yakajeka girazi, zvipfeko, mapurasitiki, guruva, nezvimwe. Naizvozvo, nekupfeka magirazi (kana iwe usina magirazi, dzivisa kutarisa zvakananga kune UV rambi) uye kuvhara ganda rako rakafumurwa nehembe zvakanyanya sezvinobvira, unogona kudzivirira maziso ako neganda kubva kuUV
Zvakakodzera kutaura kuti kuratidzwa kwenguva pfupi kune ultraviolet mwaranzi kwakafanana nekuvhenekwa nezuva rinopisa. Hazvikuvadzi muviri wemunhu asi zvinobatsira. UVB ultraviolet mwaranzi inogona kukurudzira mineral metabolism uye kuumbwa kwevhitamini D mumuviri.
Chekupedzisira, vacuum wave UVD ine wavelength ye100-200nm, iyo inogona kungopararira muvacuum uye ine yakanyanya kusimba kugona kupinda. Inogona oxidize oksijeni mumhepo mu ozone, inonzi ozone generation line, iyo isipo munzvimbo yakasikwa iyo vanhu vanogara.
Nguva yekutumira: May-22-2024