Raajooyinka ultraviolet waa mowjad iftiin tamar sare leh oo leh tamar sare, isha qaawan lama aqoonsan karo. Mawjadda dhererkeedu waa in ka yar 400nm, kaas oo ka baxsan dhinaca dibadda ee ultraviolet spectrum spectrum dhamaadka, sidaas darteed waxa loo yaqaan ultraviolet rays. Xajmiga dhererka dhererkiisu wuxuu u qaybsan yahay UV-A (320nm 400nm), UV-B (275nm 3 2 0 n m), UV-C (2 0 nm 2 7 5 nm), UV-D (100nm 200nm) afar band Tani, halkaas oo A. , B, iyo C, saddex qaybood ayaa sidoo kale loo yaqaan fallaadhaha ultraviolet ee jeermiska. Saddexda qaybood ee A, B, iyo C waxay leeyihiin saamayn jeermis-dile gaar ah, gaar ahaan saamaynta jeermiska jeermiska ee ugu wanaagsan ee band C. Aragtida Quantum Light waxay aaminsan tahay in iftiinku yahay nooc gaar ah oo dhaqdhaqaaqa walxaha. Mawjad kasta oo dhererkeedu yahay 253.7nm UV photon wuxuu leeyahay tamar 4.9EV ah. Jeermiska iyo jeermis-diridda khadka UV ee biyaha inta badan waa dhererka dhererka nuugista (254nm) ee nucleic acid (DNA). DNA-du waxay nuugi kartaa shucaaca ultraviolet tamar sare leh, waxay sababi kartaa kala-bax ku salaysan alkali oo ku xiga, waxayna sameeyaan dimer pyrimidine; Nuqulka aashitada nukliyeerka iyo muujinta borotiinku waxay keenaysaa apoptosis. Waqtigan xaadirka ah, cilmi-baaristu waxay ku xaddidan tahay cilmi-baarista raajada ultraviolet-dhaqameedka, iyo UV-LED oo ah nooc cusub oo habka jeermi-dilista ayaa laga yaabaa inay ka duwanaato habka jeermiska-dhaqameedka. Sidaas daraaddeed. Wixii macluumaad dheeraad ah, ku soo dhowow bogga rasmiga ah ee http://show-23-155.html
![[UVLED-ka jeermiska] Sayniska caanka ah ee jeermiska jeermiska ka-hortagga UV LED 1]()
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