{"id":5866,"date":"2017-05-30T18:41:23","date_gmt":"2017-05-30T11:41:23","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=5866"},"modified":"2017-10-03T11:17:13","modified_gmt":"2017-10-03T04:17:13","slug":"phat-hien-trang-thai-thu-4-cua-nuoc","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/phat-hien-trang-thai-thu-4-cua-nuoc\/","title":{"rendered":"Ph\u00e1t hi\u1ec7n tr\u1ea1ng th\u00e1i th\u1ee9 4 c\u1ee7a n\u01b0\u1edbc"},"content":{"rendered":"

Ngo\u00e0i ba tr\u1ea1ng th\u00e1i \u0111\u00e3 bi\u1ebft l\u00e0 r\u1eafn, l\u1ecfng, kh\u00ed, n\u01b0\u1edbc c\u00f2n t\u1ed3n t\u1ea1i \u1edf tr\u1ea1ng th\u00e1i th\u1ee9 4 k\u1ef3 l\u1ea1 mang t\u00ean “\u0111\u01b0\u1eddng h\u1ea7m” khi \u0111\u1eb7t d\u01b0\u1edbi \u00e1p l\u1ef1c c\u1ef1c cao trong kh\u00f4ng gian nh\u1ecf.<\/strong><\/p>\n

\"\"<\/p>\n

Minh h\u1ecda h\u00ecnh d\u00e1ng k\u1ef3 l\u1ea1 c\u1ee7a ph\u00e2n t\u1eed n\u01b0\u1edbc b\u00ean trong \u1ed1ng beryl. \u1ea2nh: ORNL.<\/em><\/p>\n

Theo Gizmag, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u1edf Ph\u00f2ng th\u00ed nghi\u1ec7m Qu\u1ed1c gia Oak Ridge (ORNL), M\u1ef9, t\u00ecm th\u1ea5y n\u01b0\u1edbc trong nh\u1eefng \u1ed1ng d\u1eabn 6 c\u1ea1nh si\u00eau nh\u1ecf t\u1eeb kho\u00e1ng ch\u1ea5t beryl, v\u1eadt ch\u1ea5t h\u00ecnh th\u00e0nh n\u1ec1n t\u1ea3ng cho nh\u1eefng lo\u1ea1i \u0111\u00e1 qu\u00fd nh\u01b0 ng\u1ecdc lam v\u00e0 ng\u1ecdc l\u1ee5c b\u1ea3o. C\u00e1c \u1ed1ng d\u1eabn c\u00f3 b\u1ec1 r\u1ed9ng b\u1eb1ng kho\u1ea3ng 5 nguy\u00ean t\u1eed v\u00e0 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 l\u1ed3ng ch\u1ee9a m\u1ed9t ph\u00e2n t\u1eed n\u01b0\u1edbc b\u00ean trong. Gi\u1eefa kh\u00f4ng gian v\u00f4 c\u00f9ng ch\u1eadt h\u1eb9p n\u00e0y, ph\u00e2n t\u1eed n\u01b0\u1edbc th\u1ec3 hi\u1ec7n m\u1ed9t \u0111\u1eb7c t\u00ednh th\u01b0\u1eddng ch\u1ec9 th\u1ea5y \u1edf c\u1ea5p l\u01b0\u1ee3ng t\u1eed nh\u1ecf h\u01a1n nhi\u1ec1u, g\u1ecdi l\u00e0 \u0111\u01b0\u1eddng h\u1ea7m (tunneling).<\/p>\n

V\u1ec1 c\u01a1 b\u1ea3n, \u0111\u01b0\u1eddng h\u1ea7m l\u01b0\u1ee3ng t\u1eed c\u00f3 ngh\u0129a m\u1ed9t h\u1ea1t, hay trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y l\u00e0 m\u1ed9t ph\u00e2n t\u1eed, c\u00f3 th\u1ec3 v\u01b0\u1ee3t qua r\u00e0o c\u1ea3n v\u00e0 \u1edf c\u1ea3 hai ph\u00eda c\u1ee7a r\u00e0o c\u1ea3n \u0111\u00f3 c\u00f9ng l\u00fac. Tr\u01b0\u1eddng h\u1ee3p n\u00e0y t\u01b0\u01a1ng t\u1ef1 nh\u01b0 vi\u1ec7c th\u1ea3 r\u01a1i qu\u1ea3 b\u00f3ng \u1edf ng\u1ecdn \u0111\u1ed3i th\u1ee9 nh\u1ea5t v\u00e0 \u0111\u1ec3 n\u00f3 l\u0103n l\u00ean ng\u1ecdn \u0111\u1ed3i th\u1ee9 hai. Ng\u1ecdn \u0111\u1ed3i th\u1ee9 hai ch\u00ednh l\u00e0 r\u00e0o c\u1ea3n v\u00e0 qu\u1ea3 b\u00f3ng ch\u1ec9 c\u00f3 \u0111\u1ee7 n\u0103ng l\u01b0\u1ee3ng \u0111\u1ec3 l\u00ean t\u1edbi \u0111\u1ed9 cao m\u00e0 n\u00f3 \u0111\u01b0\u1ee3c th\u1ea3 xu\u1ed1ng ban \u0111\u1ea7u. N\u1ebfu ng\u1ecdn \u0111\u1ed3i th\u1ee9 hai cao h\u01a1n ng\u1ecdn \u0111\u1ed3i th\u1ee9 nh\u1ea5t, qu\u1ea3 b\u00f3ng kh\u00f4ng th\u1ec3 l\u0103n qua \u0111\u1ec9nh \u0111\u1ed3i.<\/p>\n

“Trong v\u1eadt l\u00fd c\u1ed5 \u0111i\u1ec3n, nguy\u00ean t\u1eed kh\u00f4ng th\u1ec3 nh\u1ea3y qua r\u00e0o c\u1ea3n n\u1ebfu n\u00f3 kh\u00f4ng c\u00f3 \u0111\u1ee7 n\u0103ng l\u01b0\u1ee3ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c n\u00e0y”, nh\u00e0 khoa h\u1ecdc Alexander Kolesnikov, t\u00e1c gi\u1ea3 ch\u00ednh c\u1ee7a nghi\u00ean c\u1ee9u c\u00f4ng b\u1ed1 h\u00f4m 22\/4 tr\u00ean t\u1ea1p ch\u00ed Physical Review Letters, cho bi\u1ebft. Nh\u01b0ng v\u1edbi tr\u01b0\u1eddng h\u1ee3p n\u01b0\u1edbc b\u1ecb gi\u1eef trong \u1ed1ng d\u1eabn beryl, ph\u00e2n t\u1eed n\u01b0\u1edbc ho\u1ea1t \u0111\u1ed9ng theo \u0111\u1ecbnh lu\u1eadt v\u1eadt l\u00fd l\u01b0\u1ee3ng t\u1eed.<\/p>\n

“Nguy\u00ean t\u1eed oxy v\u00e0 hydro trong ph\u00e2n t\u1eed n\u01b0\u1edbc b\u1ecb d\u1ecbch chuy\u1ec3n kh\u1ecfi v\u1ecb tr\u00ed v\u00e0 ngay l\u1eadp t\u1ee9c xu\u1ea5t hi\u1ec7n \u1edf c\u1ea3 6 v\u1ecb tr\u00ed \u0111\u1ed1i x\u1ee9ng trong \u1ed1ng d\u1eabn c\u00f9ng l\u00fac. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng hi\u1ec7n t\u01b0\u1ee3ng ch\u1ec9 x\u1ea3y ra trong c\u01a1 h\u1ecdc l\u01b0\u1ee3ng t\u1eed v\u00e0 ch\u01b0a c\u00f3 tr\u01b0\u1eddng h\u1ee3p n\u00e0o t\u01b0\u01a1ng t\u1ef1 x\u1ea3y ra trong \u0111\u1eddi s\u1ed1ng th\u01b0\u1eddng ng\u00e0y”, Kolesnikov n\u00f3i.<\/p>\n

B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng th\u00ed nghi\u1ec7m ph\u00e2n t\u00e1n neutron, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u c\u00f3 th\u1ec3 quan s\u00e1t ph\u00e2n t\u1eed n\u01b0\u1edbc t\u1ecfa r\u1ed9ng th\u00e0nh hai g\u1ee3n s\u00f3ng. \u1ede trung t\u00e2m c\u1ee7a g\u1ee3n s\u00f3ng, nguy\u00ean t\u1eed hydro chia theo 6 h\u01b0\u1edbng kh\u00e1c nhau c\u00f9ng l\u00fac. “\u0110\u01b0\u1eddng h\u1ea7m \u1edf \u0111\u00e2y c\u00f3 th\u1ec3 hi\u1ec3u l\u00e0 nguy\u00ean t\u1eed hydro kh\u00f4ng n\u1eb1m m\u1ed9t ch\u1ed7, m\u00e0 t\u1ecfa ra theo v\u00f2ng tr\u00f2n”, nh\u00f3m nghi\u00ean c\u1ee9u cho bi\u1ebft.<\/p>\n

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u1edf ORNL ch\u01b0a bi\u1ebft ch\u00ednh x\u00e1c nguy\u00ean nh\u00e2n c\u0169ng nh\u01b0 c\u00e1ch th\u1ee9c h\u00ecnh th\u00e0nh tr\u1ea1ng th\u00e1i m\u1edbi c\u1ee7a n\u01b0\u1edbc. H\u1ecd v\u1eabn \u0111ang t\u00ecm hi\u1ec3u c\u01a1 ch\u1ebf d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng.<\/p>\n

Ph\u01b0\u01a1ng Hoa<\/em><\/p>\n

Ngu\u1ed3n VnExpress<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Ngo\u00e0i ba tr\u1ea1ng th\u00e1i \u0111\u00e3 bi\u1ebft l\u00e0 r\u1eafn, l\u1ecfng, kh\u00ed, n\u01b0\u1edbc c\u00f2n t\u1ed3n t\u1ea1i \u1edf tr\u1ea1ng th\u00e1i th\u1ee9 4 k\u1ef3 l\u1ea1 mang t\u00ean “\u0111\u01b0\u1eddng h\u1ea7m” khi \u0111\u1eb7t d\u01b0\u1edbi \u00e1p l\u1ef1c c\u1ef1c cao trong kh\u00f4ng gian nh\u1ecf. Minh h\u1ecda h\u00ecnh d\u00e1ng k\u1ef3 l\u1ea1 c\u1ee7a ph\u00e2n t\u1eed n\u01b0\u1edbc b\u00ean trong \u1ed1ng beryl. \u1ea2nh: ORNL. Theo Gizmag, c\u00e1c […]<\/p>\n","protected":false},"author":17,"featured_media":6585,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-5866","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5866","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=5866"}],"version-history":[{"count":3,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5866\/revisions"}],"predecessor-version":[{"id":6587,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5866\/revisions\/6587"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/6585"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=5866"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=5866"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=5866"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}