紫外線從來都是可免則免,而購買薯仔則是多多益善。974Please respect copyright.PENANAmnKCITAASU974Please respect copyright.PENANACF8S4zAJOU
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在大多數的情況下,陽光是我們接觸紫外線的最主要源頭。974Please respect copyright.PENANAFuwvBFQ3fS
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太陽放出的紫外線根據波段可分為兩種,UVA和UVB。974Please respect copyright.PENANAGu8mj3p6Ri
概要來說,UVA(320–400nm)會曬黑皮膚及引起皺紋,而UVB(280–320 nm)則會曬傷及曬紅皮膚。974Please respect copyright.PENANA6fOgpo6jOS
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根據世衛所訂下的方式,UV指數的計法是將總紫外線的能量除以25。974Please respect copyright.PENANAZleMNDhPPD
指數高於6表示有高度曬傷風險,而高於11更會對人體構成危險。974Please respect copyright.PENANAfmNRn2ftFO
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(圖2)現今智能手錶、智能眼鏡等設備已逐漸普遍,有不少更設有光觸媒二氧化鈦(TiO2)等物料可以將紫外光量化成電流,然後再根據的電流強弱判斷出紫外線指數。974Please respect copyright.PENANAo5CuOgMmfI
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(圖3)近日,有科學家研發出隨著紫外光強弱而變色的麻料(Ref1),基於毛線表面凹凸不平,因而增加紫外光在裡頭多重折射的機會,變相使在感測方面比普遍的平面光觸媒更為靈敏。974Please respect copyright.PENANA9cgbNnVEJn974Please respect copyright.PENANAHo4YDY0OWv
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他們在文中展示出,改變原材料的做法,可達至不同效果,例如WIFI圖案展示出紫外線的強弱。974Please respect copyright.PENANABTSSQmS5Kz
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(圖4)他們更成功製作出隨紫外光強弱而變色的麻繩,據稱布料彈性十足穿著上非常舒適,而且製作方法可套用在任何製衣物料上。974Please respect copyright.PENANAMsqYqRkRjE974Please respect copyright.PENANAwNuOEXTYee
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在文中,他們發揮了自己的小宇宙,縫出提子圖案,提子葉加上孔雀石綠感測pH,而提子則由紫外光織成麻繩用作感測UV之用。974Please respect copyright.PENANAQVtcjYQuag
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無疑,一場時裝界的科學大戰號角已徐徐奏起。974Please respect copyright.PENANAJiGIUKtGwq
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如果想我快啲出文的話,請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark,這對我非常之重要。974Please respect copyright.PENANADf36OOKHGb
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Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc974Please respect copyright.PENANADBbR3ZTFk7
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同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」,以課金的方式推動我繼續搜羅資料寫文,多謝。974Please respect copyright.PENANAKXcVcM5Fxc
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Link:974Please respect copyright.PENANAFhBdJDt1LQ
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio974Please respect copyright.PENANAhNMQZUGp0q
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有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。974Please respect copyright.PENANAQhJezmBC3P
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Ref1:https://onlinelibrary.wiley.com/doi/full/10.1002/admt.202000564974Please respect copyright.PENANAFfajPWrdBG
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明日會停一日更,想花時間在講故台寫文。974Please respect copyright.PENANAVvstVylRLB