A lokacin babbar guguwar kankara ta shekarar 1998, kankara ta daskare akan layukan wutar lantarki da sanduna, lamarin da ya gurgunta arewacin Amurka da kudancin Kanada, wanda ya bar mutane da yawa cikin sanyi da duhu na kwanaki har ma da makonni.Ko injin turbin iska, hasumiya mai ƙarfi, jirage marasa matuƙa ko fuka-fukan jirgin sama, yaƙin da ake yi da gina ƙanƙara yakan dogara ne akan hanyoyin da suke ɗaukar lokaci, tsada da/ko amfani da makamashi mai yawa da sinadarai iri-iri.Amma duban yanayi, masu binciken McGill suna tunanin sun sami sabuwar hanya mai ban sha'awa don magance matsalar.An yi musu wahayi daga fuka-fukan gentoo penguins, penguins da ke iyo a cikin ruwan ƙanƙara na yankin Antarctic, wanda gashinsu ba ya daskarewa ko da lokacin da zafin jiki na waje ya yi ƙasa da daskarewa.
Da farko mun yi bincike game da kaddarorin ganyen magarya, wanda ke da kyau wajen shayar da ruwa, amma sai ya zamana cewa ba su da tasiri wajen shan ruwa.In ji Ann Kitzig, mataimakiyar farfesa a fannin injiniyan sinadarai a Jami'ar McGill kuma darekta na Biomimetic Surface Engineering Lab, wanda ke neman mafita kusan shekaru goma, wani abu da zai iya cire ruwa da kankara."
Hoton hagu yana nuna ƙananan tsarin gashin gashin penguin (ƙusa-ƙusa na 10-micron na abin da aka saka yana daidai da 1/10 nisa na gashin mutum, don ba da ra'ayi na sikelin).daga gashin fuka-fukan reshe.Ana amfani da "ƙugiya" don haɗa gashin gashin fuka-fukan ɗaya don samar da tagulla.A hannun dama akwai bakin karfe wayazanecewa masu binciken sun yi ado da nanogrooves, suna yin kwatancen tsarin gashin gashin penguin (wayar ƙarfe tare da nanogrooves a saman).
"Mun gano cewa tsarar gashin fuka-fukan da kansu suna ba da kayyakin magudanar ruwa, kuma filayen da suke da shi na rage mannewar kankara," in ji Michael Wood, wani ɗalibin da ya kammala karatun digiri na baya-bayan nan da ke aiki tare da Kitziger, wanda ɗaya ne daga cikin waɗanda suka rubuta binciken.Marubutan sun buga sabon labari a cikin ACS Applied Material Interfaces."Mun sami damar yin kwafin waɗannan tasirin haɗin gwiwa tare da ragamar waya da aka yanke ta Laser."
Kitzig ya kara da cewa: "Yana iya zama kamar ba daidai ba ne, amma mabuɗin narkewar ƙanƙara shine cewa dukkanin ramukan da ke kan ragar suna shan ruwa a ƙarƙashin yanayin sanyi.Ruwan da ke cikin waɗannan pores shine na ƙarshe don daskarewa, kuma yayin da yake faɗaɗa, yana haifar da tsagewa kamar abin da kuke gani a cikin kwandon kankara na firiji.Muna buƙatar ƙoƙari kaɗan don cire ƙanƙara daga grid, saboda tsagewar da ke cikin kowane rami cikin sauƙi yana daɗawa tare da saman waɗannan wayoyi masu sarƙaƙƙiya.
Masu binciken sun gudanar da gwaje-gwajen ramin iskar da aka yi da suttura kuma sun gano cewa maganin ya fi kashi 95 cikin 100 mafi inganci wajen hana icing fiye da goge bakin karfe da ba a goge ba.Tun da ba a buƙatar magani na sinadarai, sabuwar hanyar tana ba da mafita mai yuwuwa ba tare da kulawa ba ga matsalar samuwar ƙanƙara akan injinan iska, sandunan wutar lantarki, layin wutar lantarki da jirage marasa matuki.
“Idan aka yi la’akari da adadin ka’idojin zirga-zirgar fasinja da kuma hadurran da ke tattare da hakan, da wuya a nannade reshen jirgin kawai da karfe.raga, "in ji Kitzig."Duk da haka, wata rana saman reshen jirgin sama na iya samun nau'in da muke nazarinsa, kuma za a iya yin gyare-gyare ta hanyar haɗakar hanyoyin kawar da ƙanƙara na gargajiya da ke aiki tare a kan reshe.Filayen ya haɗa da zane-zanen da aka yi wahayi daga fuka-fukan penguin..surface texture."
"Amintacce anti-kankara saman dangane da dual ayyuka - kankara flaking lalacewa ta hanyar microstructure da malalewa inganta ta nanostructure", by Michael J. Wood, Gregory Brock, Juliette Debret, Philippe Servio da Anne-Marie Kitzig, buga a ACS Appl.matt.interface
An kafa shi a Montreal, Quebec a 1821, Jami'ar McGill ita ce jami'ar likita ta farko ta Kanada.McGill yana kasancewa a koyaushe cikin mafi kyawun jami'o'i a cikin ƙasa da duniya.Cibiyar ilimi ce ta "sanannen duniya" tare da ayyukan bincike a cikin cibiyoyi uku, sassan 11, makarantun ƙwararru 13, shirye-shiryen nazarin 300 da ɗalibai sama da 40,000, gami da ɗaliban da suka kammala karatun digiri na 10,200.McGill yana jan hankalin ɗalibai daga ƙasashe sama da 150, kuma ɗalibanta na duniya 12,800 sune kashi 31% na ƙungiyar ɗalibanta.Fiye da rabin ɗaliban McGill ƴan asalin yaren uwa banda Ingilishi, kuma kusan kashi 19 cikin ɗari na waɗannan ɗaliban suna ɗaukar Faransanci a matsayin yarensu na farko.
Lokacin aikawa: Agusta-02-2023