Memo waihona: Mālama pono ka kikokikona i nā koi mai ka ʻatikala kumu a ʻaʻole ʻo ia kā lākou hōʻoia loea hou. ʻO ka noiʻi i wehewehe ʻia, kaʻina hana, nā mea a me nā noi hiki ʻaʻole ia he huahana, kikoʻī ʻenehana, palapala hōʻoia a papahana paha o Savo Kusić. ʻO ka hāʻawi lehulehu i kēia manawa ua kālele ʻia ma nā puka makani a me nā puka maʻamau.
Hōʻike mōʻaukala o ka noiʻi
ʻO ka lāʻau kahi mea kūkulu hale ikaika a maʻalahi, akā e like me nā mea ʻē aʻe, loaʻa iā ia kona mau hemahema (ʻo ia ka pala i ka wā o ka manawa, pala i nā pōpoki a poloka i ka hele ʻana o ka mālamalama).
ʻAʻole ʻoi aku ka maikaʻi o nā panela aniani maʻamau. Hoʻololi maʻalahi lākou i ka mālamalama a hāʻawi i ka nui o ka ikehu e kahe i loko a i waho paha o ka hale. Ua loaʻa i nā ʻenekinia ka maikaʻi o nā mea ʻelua: lāʻau ʻālohilohi.
Na kānaka ʻepekema Liangbing Hu, Kauka Mingwei Zhu a me kā lāua mau hoa hana mai ke Kulanui o Maryland i hana i kahi poloka lāʻau i akaka, no laila e loaʻa ai kahi mea hiki ke hoʻohana ʻia i ke kūkulu ʻana a me nā ʻōnaehana uila e pili ana i ka mālamalama.
Ua wehe ka poʻe ʻepekema mai ka lāʻau i ka mole e hoʻomaloʻo a ʻeleʻele i ka waihoʻoluʻu, a loaʻa i nā hale cellulose kala ʻole o ka cellulose i hoʻopiha ʻia me ka resin epoxy, no laila e hana ana i ka lāʻau i ʻike ʻia.
“Hiki ke hoʻohana ʻia kēia i loko o nā kaʻa no ka mea ʻo ka lāʻau ke ʻike a ikaika loa,” wahi a Kauka Zhu, ka mea kākau mua o ka noiʻi. “Hiki iā ʻoe ke hoʻohana iā ia ma ke ʻano he mea hale kūʻokoʻa.”
Ma ka wehe ʻana i ka pena a me nā kemika, ua ʻike ʻia ka lāʻau, akā ʻoi aku ka ikaika a ʻoi aku ka maikaʻi o ka insulator ma mua o ke aniani, a ʻoi aku ka maikaʻi o ka biodegradability ma mua o ka plastic.
ʻO ke kaʻina hana a me nā waiwai i ʻōlelo ʻia ma ka ʻatikala
Ua hoʻomaka ka hana i hoʻoheheʻe ʻia ka lāʻau ma ka hoʻolapalapa ʻana i loko o ka wai i hui pū ʻia me ka sodium hydroxide a me nā mea kemika ʻē aʻe no 2 mau hola. Ua hoʻokahe kēia i ka lignin, ka mole e hāʻawi i ka lāʻau i kona kala, mai loko mai o ka lāʻau. Ma hope o kēlā, ninini lākou i ka resin epoxy ma luna o ka ʻāpana lāʻau, a ʻehā a ʻelima mau manawa i ʻoi aku ka ikaika.
ʻO kekahi o nā mea hoihoi o ka lāʻau “hou” ʻo ia ka mālama ʻana i ke ʻano a me nā ala kūlohelohe i hana ʻia i ka wā he lāʻau “maoli”. Hiki i kēia mau microchannels ke alakaʻi i ka māmā e like me kā lākou lawe ʻana i nā meaʻai ma ke ʻano o kahi mea kanu. “Ma ka mea kahiko, ua laha ka malamalama,” wahi a Hu. “Inā loaʻa iā ʻoe kēlā hopena i ka lāʻau, e hiki mai ana ka mālamalama i loko o kou hale.”
Ua helu ʻia nā noi ma ke kumu
Ma nā ʻanuʻu noiʻi e hiki mai ana, e hoʻāʻo nā ʻepekema e hoʻomohala i kahi ʻenehana e hiki ai iā lākou ke hoʻonui i kēia ʻenehana, i hiki ke hana ʻia nā poloka nui o ka lāʻau aniani e hoʻohana ʻia no nā kumu like ʻole mai ka hana ʻana i nā puka makani, nā mea kūkulu hale a me nā lako, a hiki i nā noi liʻiliʻi e like me nā lako optical precision i hana mau ʻia me ke aniani a i ʻole ka plastic.
Sources: phys.org,youtube.com