{"id":28759,"date":"2019-03-22T21:07:00","date_gmt":"2019-03-22T14:07:00","guid":{"rendered":"https:\/\/ttud.com.vn\/?p=28759"},"modified":"2021-10-03T21:07:58","modified_gmt":"2021-10-03T14:07:58","slug":"tao-ra-vat-lieu-co-the-chan-duoc-am-thanh","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/tao-ra-vat-lieu-co-the-chan-duoc-am-thanh\/","title":{"rendered":"T\u1ea1o ra v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 \u201cch\u1eb7n\u201d \u0111\u01b0\u1ee3c \u00e2m thanh"},"content":{"rendered":"\n<p>B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p gi\u1eefa nghi\u00ean c\u1ee9u to\u00e1n h\u1ecdc v\u1edbi in 3D, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1eeb \u0110\u1ea1i h\u1ecdc Boston \u0111\u00e3 t\u1ea1o ra m\u1ed9t v\u1eadt li\u1ec7u m\u1edbi d\u01b0\u1eddng nh\u01b0 b\u1ea5t ch\u1ea5p logic th\u00f4ng th\u01b0\u1eddng v\u1edbi kh\u1ea3 n\u0103ng\u2026 \u201cch\u1eb7n\u201d \u0111\u01b0\u1ee3c \u00e2m thanh.Nh\u00e0 nghi\u00ean c\u1ee9u Xin Zhang, m\u1ed9t trong nh\u1eefng nh\u00e0 nghi\u00ean c\u1ee9u ch\u00ednh n\u00f3i trong th\u00f4ng c\u00e1o b\u00e1o ch\u00ed r\u1eb1ng. Trong t\u01b0\u01a1ng lai c\u00f3 th\u1ec3 c\u00f3 m\u1ed9t v\u1eadt li\u1ec7u ho\u00e0n to\u00e0n kh\u00e1c bi\u1ec7t v\u1edbi kh\u1ea3 n\u0103ng k\u00ec l\u1ea1 \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u00ean l\u00e0\u00a0<em>\u201csi\u00eau v\u1eadt li\u1ec7u ng\u0103n \u00e2m thanh\u201d.<\/em><img decoding=\"async\" alt=\"C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111ang k\u00ec v\u1ecdng v\u1ec1 v\u1eadt li\u1ec7u \u0111\u1eb7c bi\u1ec7t c\u00f3 kh\u1ea3 n\u0103ng \u201cch\u1eb7n\u201d \u00e2m thanh.\" src=\"https:\/\/www.giaoduc.edu.vn\/upload\/images\/2019\/03\/19\/cac-nha-khoa-hoc-tao-ra-vat-lieu-co-the-chan-duoc-am-thanh-1.jpg\"><br>C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111ang k\u00ec v\u1ecdng v\u1ec1 v\u1eadt li\u1ec7u \u0111\u1eb7c bi\u1ec7t c\u00f3 kh\u1ea3 n\u0103ng \u201cch\u1eb7n\u201d \u00e2m thanh.Theo ti\u1ebft l\u1ed9 ban \u0111\u1ea7u, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 b\u1eaft \u0111\u1ea7u t\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc v\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt m\u00e0 m\u1ed9t v\u1eadt li\u1ec7u s\u1ebd c\u1ea7n ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng ph\u1ea3n x\u1ea1 s\u00f3ng \u00e2m thanh tr\u1edf l\u1ea1i ngu\u1ed3n c\u1ee7a ch\u00fang m\u00e0 kh\u00f4ng ch\u1eb7n kh\u00f4ng kh\u00ed ho\u1eb7c \u00e1nh s\u00e1ng.Sau \u0111\u00f3, h\u1ecd in 3D v\u1eadt li\u1ec7u th\u00e0nh h\u00ecnh b\u00e1nh r\u00e1n v\u00e0 g\u1eafn n\u00f3 v\u00e0o m\u1ed9t \u0111\u1ea7u c\u1ee7a \u1ed1ng nh\u1ef1a PVC, \u0111\u1ea7u c\u00f2n l\u1ea1i g\u1eafn v\u00e0o loa.Khi th\u1ed5i m\u1ed9t n\u1ed1t cao t\u1eeb loa, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u nh\u1eadn th\u1ea5y r\u1eb1ng \u0111\u00e3 ch\u1eb7n 94% \u00e2m thanh ph\u00e1t ra t\u1eeb \u0111\u01b0\u1eddng \u1ed1ng.<em>&#8220;Kho\u1ea3nh kh\u1eafc ch\u00fang t\u00f4i l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1eb7t v\u00e0 lo\u1ea1i b\u1ecf b\u1ed9 gi\u1ea3m thanh th\u1ef1c s\u1ef1 \u0111\u1eb7c bi\u1ec7t. Ch\u00fang t\u00f4i \u0111\u00e3 nh\u00ecn th\u1ea5y nh\u1eefng k\u1ebft qu\u1ea3 n\u00e0y trong m\u00f4 h\u00ecnh m\u00f4 ph\u1ecfng trong m\u00e1y t\u00ednh c\u1ee7a ch\u00fang t\u00f4i trong nhi\u1ec1u th\u00e1ng\u201d<\/em>, nh\u00e0 nghi\u00ean c\u1ee9u Jacob Nikolajchot cho bi\u1ebft.<em>&#8220;C\u1ea5u tr\u00fac c\u1ee7a ch\u00fang t\u00f4i si\u00eau nh\u1eb9 v\u00e0 r\u1ea5t \u0111\u1eb9p&#8221;<\/em>, Zhang v\u00e0 nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u1ed3ng nghi\u1ec7p Reza Ghaffarivardavagh n\u00f3i trong th\u00f4ng c\u00e1o b\u00e1o ch\u00ed ch\u00ednh th\u1ee9c.V\u1edbi ph\u00e1t hi\u1ec7n m\u1edbi n\u00e0y, c\u00e1c nh\u00e0 khoa h\u1ecdc hi v\u1ecdng t\u1edbi ti\u1ec1m n\u0103ng s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u \u0111\u1ec3 l\u00e0m gi\u1ea3m \u00e2m thanh c\u1ee7a m\u00e1y bay kh\u00f4ng ng\u01b0\u1eddi l\u00e1i ho\u1eb7c th\u1eadm ch\u00ed c\u1ea3 m\u00e1y MRI trong t\u01b0\u01a1ng lai.<\/p>\n\n\n\n<p><strong>HT (theo khoahoc.tv)<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p gi\u1eefa nghi\u00ean c\u1ee9u to\u00e1n h\u1ecdc v\u1edbi in 3D, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1eeb \u0110\u1ea1i h\u1ecdc Boston \u0111\u00e3 t\u1ea1o ra m\u1ed9t v\u1eadt li\u1ec7u m\u1edbi d\u01b0\u1eddng nh\u01b0 b\u1ea5t ch\u1ea5p logic th\u00f4ng th\u01b0\u1eddng v\u1edbi kh\u1ea3 n\u0103ng\u2026 \u201cch\u1eb7n\u201d \u0111\u01b0\u1ee3c \u00e2m thanh.Nh\u00e0 nghi\u00ean c\u1ee9u Xin Zhang, m\u1ed9t trong nh\u1eefng nh\u00e0 nghi\u00ean c\u1ee9u ch\u00ednh n\u00f3i trong th\u00f4ng [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-28759","post","type-post","status-publish","format-standard","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28759","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=28759"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28759\/revisions"}],"predecessor-version":[{"id":28762,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28759\/revisions\/28762"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=28759"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=28759"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=28759"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}