Ntoo yog cov khoom siv hauv tsev muaj zog thiab ntau yam, tab sis zoo li txhua yam khoom siv, nws muaj nws qhov tsis zoo (nws rots dhau sij hawm, lwj los ntawm kab thiab thaiv qhov pom ntawm lub teeb).
Cov iav ib txwm siv tsis tau zoo dua. Lawv yooj yim refract lub teeb thiab tso cai rau ntau lub zog ntws mus rau hauv lossis tawm ntawm lub tsev. Engineers tau pom qhov zoo tshaj plaws ntawm ob qho tib si: pob tshab ntoo.
Cov kws tshawb fawb Liangbing Hu, Dr. Mingwei Zhu thiab lawv cov npoj yaig los ntawm University of Maryland tau tswj hwm los ua ib qho thaiv ntawm cov ntoo pob tshab, yog li tau txais cov khoom siv uas tuaj yeem siv hauv kev tsim kho thiab hauv tshuab hluav taws xob raws li lub teeb.
"Qhov no tuaj yeem siv rau hauv tsheb vim tias cov ntoo yog pob tshab thiab muaj zog heev," said Dr. Zhu, thawj tus sau ntawm kev kawm. "Koj tuaj yeem siv nws ua cov khoom siv hauv tsev tshwj xeeb."
Los ntawm kev tshem tawm cov xim thiab cov tshuaj, cov ntoo los ua pob tshab, tab sis nws tseem muaj zog dua thiab cov insulator zoo dua li iav, thiab muaj cov cuab yeej ntawm biodegradability zoo dua li yas.
Cov txheej txheem uas ua rau cov ntoo pob tshab pib los ntawm boiling nyob rau hauv dej tov nrog sodium hydroxide thiab lwm yam tshuaj rau li 2 teev. Qhov no leached lignin, molecule uas muab ntoo nws cov xim, tawm ntawm ntoo. Tom qab ntawd, lawv tau nchuav epoxy resin hla lub thaiv ntawm cov ntoo, uas ua rau nws muaj zog dua plaub mus rau tsib zaug.
Ib qho ntawm cov khoom nthuav dav ntawm "tshiab" ntoo yog tias nws khaws cov qauv thiab cov txheej txheem ntuj tsim thaum nws yog "tiag" ntoo. Cov microchannels tuaj yeem ua teeb pom kev zoo li lawv ua cov as-ham ua ib feem ntawm cov nroj tsuag. "Nyob rau hauv cov khoom siv tsoos, lub teeb tau tawg mus," Hu hais. "Yog tias koj tau txais cov nyhuv ntawd hauv ntoo, ntau lub teeb yuav tuaj rau hauv koj lub tsev."
Nyob rau theem tom ntej ntawm kev tshawb fawb, cov kws tshawb fawb yuav sim tsim cov txheej txheem uas yuav tso cai rau lawv los ntsuas cov thev naus laus zis no, kom lawv tuaj yeem tsim cov ntoo pob tshab loj uas yuav siv rau ntau lub hom phiaj los ntawm kev ua qhov rais, cov khoom siv hauv tsev thiab rooj tog zaum. , txhua txoj hauv kev rau kev siv me me xws li precision optics khoom uas feem ntau yog ua los ntawm iav los yog yas.
Tau qhov twg los: phys.org, youtube.com
