{"id":7834,"date":"2017-11-15T01:12:21","date_gmt":"2017-11-14T18:12:21","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=7834"},"modified":"2017-12-04T01:12:52","modified_gmt":"2017-12-03T18:12:52","slug":"tim-ra-cach-de-bien-moi-thu-thanh-tang-hinh","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/tim-ra-cach-de-bien-moi-thu-thanh-tang-hinh\/","title":{"rendered":"T\u00ecm ra c\u00e1ch \u0111\u1ec3 bi\u1ebfn m\u1ecdi th\u1ee9 th\u00e0nh t\u00e0ng h\u00ecnh"},"content":{"rendered":"

\"alt\"<\/p>\n

M\u1ed9t nh\u00f3m c\u00e1c nh\u00e0 khoa h\u1ecdc h\u00e0ng \u0111\u1ea7u \u0111\u00e3 h\u1ee3p t\u00e1c \u0111\u1ec3 nghi\u00ean c\u1ee9u m\u1ed9t thi\u1ebft b\u1ecb che ph\u1ee7 l\u00e0m ph\u00e2n t\u00e1n \u00e1nh s\u00e1ng kh\u1ecfi v\u1eadt th\u1ec3 v\u00e0 khi\u1ebfn v\u1eadt th\u1ec3 \u0111\u00f3 kh\u00f4ng b\u1ecb ph\u00e1t hi\u1ec7n.<\/p>\n

\u00dd t\u01b0\u1edfng c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p m\u1edbi n\u00e0y l\u00e0 s\u1ebd t\u1ea1o ra m\u1ed9t \u201ct\u1ea5m \u00e1o cho\u00e0ng t\u00e0ng h\u00ecnh\u201d, n\u00f3 s\u1ebd l\u00e0m t\u00e1n x\u1ea1 c\u00e1c s\u00f3ng \u00e1nh s\u00e1ng xung quanh m\u1ed9t v\u1eadt th\u1ec3, \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c v\u1eadt th\u1ec3 \u0111\u00f3 ho\u00e0n to\u00e0n kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y.<\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc \u1edf tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Ben – Gurion \u1edf Israel s\u1ebd ch\u1ebf t\u1ea1o ra m\u1ed9t nguy\u00ean m\u1eabu \u0111\u1ec3 ch\u1ee9ng minh ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn v\u1eadt th\u1ec3 th\u00e0nh v\u00f4 h\u00ecnh n\u00e0y th\u1eadt s\u1ef1 hi\u1ec7u qu\u1ea3.<\/p>\n

N\u1ebfu th\u00e0nh c\u00f4ng, n\u00f3 c\u00f3 th\u1ec3 s\u1ebd \u0111\u01b0\u1ee3c d\u00f9ng trong qu\u00e2n \u0111\u1ed9i c\u00f9ng v\u1edbi c\u00e1c k\u1ef9 thu\u1eadt kh\u00e1c nh\u01b0 s\u01a1n t\u1ed1i m\u00e0u h\u1ea5p th\u1ee5 s\u00f3ng ra-\u0111a tr\u00ean m\u00e1y bay t\u00e0ng h\u00ecnh, ng\u1ee5y trang quang h\u1ecdc t\u1ea1i ch\u1ed7, l\u00e0m m\u00e1t b\u1ec1 m\u1eb7t \u0111\u1ec3 tr\u00e1nh b\u1ecb ph\u00e1t hi\u1ec7n b\u1edfi tia h\u1ed3ng ngo\u1ea1i v\u00e0 t\u00e1n x\u1ea1 s\u00f3ng \u0111i\u1ec7n t\u1eeb.<\/p>\n

TS Alina Karabchevsky – tr\u01b0\u1edfng nh\u00f3m nghi\u00ean c\u1ee9u – cho hay: Nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ee9ng minh r\u1eb1ng c\u00f3 th\u1ec3 b\u1ebb cong \u00e1nh s\u00e1ng xung quanh m\u1ed9t v\u1eadt th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u00ean m\u1ed9t t\u1ea5m ph\u1ee7 n\u1eb1m tr\u00ean m\u1ed9t con chip quang h\u1ecdc. \u00c1nh s\u00e1ng kh\u00f4ng t\u01b0\u01a1ng t\u00e1c v\u1edbi v\u1eadt th\u1ec3 n\u00e0y, do \u0111\u00f3 d\u1eabn \u0111\u1ebfn k\u1ebft qu\u1ea3 l\u00e0 v\u1eadt th\u1ec3 tr\u1edf n\u00ean v\u00f4 h\u00ecnh.<\/p>\n

Nghi\u00ean c\u1ee9u n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean trang Khoa h\u1ecdc T\u1ef1 nhi\u00ean, nghi\u00ean c\u1ee9u cho th\u1ea5y khi \u0111\u1eb7t m\u1ed9t v\u1eadt th\u1ec3 ph\u00eda tr\u00ean m\u1ed9t b\u1ec1 m\u1eb7t l\u00e0m b\u1eb1ng v\u1eadt li\u1ec7u \u201cche gi\u1ea5u\u201d c\u00f3 th\u1ec3 l\u00e0m ph\u00e2n t\u00e1n \u00e1nh s\u00e1ng xung quanh v\u1eadt th\u1ec3. Khi\u1ebfn cho m\u1eaft th\u01b0\u1eddng s\u1ebd kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y v\u1eadt th\u1ec3 \u0111\u00f3 – m\u1eb7c d\u00f9 v\u1eadt th\u1ec3 n\u00e0y v\u1eabn c\u00f3 th\u1ec3 b\u1ecb ph\u00e1t hi\u1ec7n b\u1edfi c\u00e1c c\u1ea3m bi\u1ec3n h\u1ed3ng ngo\u1ea1i ho\u1eb7c ra-\u0111a.<\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 \u0111\u01b0a ra ph\u01b0\u01a1ng ph\u00e1p che gi\u1ea5u v\u1eadt th\u1ec3 n\u00e0y d\u1ef1a tr\u00ean m\u1ed9t nghi\u00ean c\u1ee9u v\u1ec1 c\u00e1c lo\u1ea1i \u201csi\u00eau v\u1eadt li\u1ec7u\u201d.<\/p>\n

Nghi\u00ean c\u1ee9u v\u1ec1 \u201csi\u00eau v\u1eadt li\u1ec7u\u201d t\u1eadp trung v\u00e0o vi\u1ec7c khai th\u00e1c v\u00e0 ki\u1ec3m so\u00e1t \u00e1nh s\u00e1ng th\u00f4ng qua vi\u1ec7c quan s\u00e1t c\u00e1ch \u00e1nh s\u00e1ng t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c v\u1eadt th\u1ec3. Th\u00f4ng th\u01b0\u1eddng, \u0111\u01b0\u1eddng \u0111i c\u1ee7a \u00e1nh s\u00e1ng s\u1ebd b\u1ecb l\u1ec7ch \u0111i khi n\u00f3 ch\u1ea1m v\u00e0o v\u1eadt ch\u1ea5t – nh\u01b0ng \u201csi\u00eau v\u1eadt li\u1ec7u\u201d l\u00e0 c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u m\u1edbi c\u00f3 th\u1ec3 kh\u00fac x\u1ea1 \u00e1nh s\u00e1ng.<\/p>\n

Lo\u1ea1i v\u1eadt li\u1ec7u n\u00e0y c\u0169ng \u0111\u01b0\u1ee3c c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1eeb B\u1ed9 N\u0103ng l\u01b0\u1ee3ng Hoa K\u1ef3 d\u00f9ng \u0111\u1ec3 ch\u1ebf t\u1ea1o m\u1ed9t t\u1ea5m \u201c\u00e1o cho\u00e0ng da t\u00e0ng h\u00ecnh\u201d – n\u00f3 c\u00f3 th\u1ec3 th\u00edch \u1ee9ng v\u1edbi k\u00edch th\u01b0\u1edbc c\u1ee7a m\u1ed9t v\u1eadt th\u1ec3 v\u00e0 che gi\u1ea5u cho v\u1eadt th\u1ec3 \u0111\u00f3 kh\u1ecfi b\u1ecb ph\u00e1t hi\u1ec7n.<\/p>\n

T\u1ea5m \u00e1o cho\u00e0ng \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o n\u0103m 2015 n\u00e0y c\u00f3 k\u00edch th\u01b0\u1edbc c\u1ef1c nh\u1ecf. Tuy nhi\u00ean, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111ang nghi\u00ean c\u1ee9u \u0111\u1ec3 t\u1ea1o ra m\u1ed9t phi\u00ean b\u1ea3n l\u1edbn h\u01a1n c\u00f3 th\u1ec3 d\u00f9ng cho c\u00e1c v\u1eadt th\u1ec3 to h\u01a1n.<\/p>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc s\u1ebd ti\u1ebfp t\u1ee5c m\u1edf r\u1ed9ng ranh gi\u1edbi c\u1ee7a nghi\u00ean c\u1ee9u v\u1ec1 c\u00e1ch \u00e1nh s\u00e1ng c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c v\u1eadt th\u1ec3 khi h\u1ecd th\u00ed nghi\u1ec7m v\u1edbi tia X, tia h\u1ed3ng ngo\u1ea1i v\u00e0 c\u00e1c s\u00f3ng \u00e1nh s\u00e1ng trong c\u00e1c nghi\u00ean c\u1ee9u ti\u1ebfp theo.<\/p>\n

(D\u00e2n tr\u00ed)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

M\u1ed9t nh\u00f3m c\u00e1c nh\u00e0 khoa h\u1ecdc h\u00e0ng \u0111\u1ea7u \u0111\u00e3 h\u1ee3p t\u00e1c \u0111\u1ec3 nghi\u00ean c\u1ee9u m\u1ed9t thi\u1ebft b\u1ecb che ph\u1ee7 l\u00e0m ph\u00e2n t\u00e1n \u00e1nh s\u00e1ng kh\u1ecfi v\u1eadt th\u1ec3 v\u00e0 khi\u1ebfn v\u1eadt th\u1ec3 \u0111\u00f3 kh\u00f4ng b\u1ecb ph\u00e1t hi\u1ec7n. \u00dd t\u01b0\u1edfng c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p m\u1edbi n\u00e0y l\u00e0 s\u1ebd t\u1ea1o ra m\u1ed9t \u201ct\u1ea5m \u00e1o cho\u00e0ng t\u00e0ng h\u00ecnh\u201d, n\u00f3 s\u1ebd […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-7834","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\/7834","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\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=7834"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7834\/revisions"}],"predecessor-version":[{"id":7835,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7834\/revisions\/7835"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=7834"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=7834"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=7834"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}