{"id":18550,"date":"2017-01-30T16:30:12","date_gmt":"2017-01-30T14:30:12","guid":{"rendered":"http:\/\/realitatearutiera.ro\/?p=18550"},"modified":"2017-01-30T14:41:32","modified_gmt":"2017-01-30T12:41:32","slug":"mii-de-vieti-vor-fi-salvate-datorita-acestui-material","status":"publish","type":"post","link":"https:\/\/realitatearutiera.ro\/?p=18550","title":{"rendered":"Mii de vie\u021bi vor fi salvate datorit\u0103 acestui material"},"content":{"rendered":"<p><strong>Un grup de cercet\u0103tori de la Universitatea Michigan din Statele Unite a dezvoltat recent un nou material care \u00ee\u0219i poate schimba automat duritatea din tare \u00een moale, au anun\u021bat reprezentan\u021bii institu\u021biei.<\/strong><\/p>\n<p><strong>\u201eDe obicei, este dificil de schimbat duritatea unui material tradi\u021bional. Noutatea acestui metamaterial este faptul c\u0103 suprafa\u021ba sa se poate modifica \u00eentre tare \u0219i moale\u201d<\/strong>, a declarat Xiaoming Mao, profesor asistent de fizic\u0103 \u00een cadrul universit\u0103\u021bii, citat duminic\u0103 de Xinhua.<\/p>\n<p>Noul material a fost proiectat pentru a-\u0219i schimba propriet\u0103\u021bile fa\u021b\u0103 de modul \u00een care a fost fabricat ini\u021bial. Astfel, el poate fi u\u0219or de manipulat pentru ca duritatea suprafe\u021bei s\u0103 fie modificat\u0103 de la cea asem\u0103n\u0103toare cauciucului la cea similar\u0103 o\u021belului \u0219i viceversa.<\/p>\n<p>Mao este de p\u0103rere c\u0103 noul material ar putea \u00eentr-o bun\u0103 zi s\u0103 revolu\u021bioneze \u0219i modul \u00een care sunt fabricate autovehiculele. <strong>\u201eAtunci c\u00e2nd conduci o ma\u0219in\u0103, vrei ca aceasta s\u0103 fie solid\u0103, pentru a sus\u021bine \u00eenc\u0103rc\u0103tura. \u00cens\u0103, \u00een timpul unei coliziuni, vrei ca toate componentele s\u0103 devin\u0103 maleabile pentru a absorbi energia \u00een timpul coliziunii \u0219i s\u0103 protejeze pasagerii\u201d<\/strong>, a mai spus cercet\u0103torul.<\/p>\n<p>Potrivit lui Mao, modalitatea \u00een care un obiect intr\u0103 \u00een contact cu marginile metamaterialului modific\u0103 geometria structurii sale \u0219i, ca urmare, se schimb\u0103 r\u0103spunsul acestuia la presiune.<\/p>\n<p>Din moment ce propriet\u0103\u021bile noului produs provin din structura sa general\u0103, interiorului metamaterialului r\u0103m\u00e2ne nealterat chiar \u0219i \u00een condi\u021biile \u00een care consisten\u021ba sa se modific\u0103 \u00een mod repetat \u00eentre tare \u0219i moale, a mai explicat profesorul asistent.<\/p>\n<p>Potrivit oamenilor de \u0219tiin\u021b\u0103, noul material ar putea avea aplica\u021bii \u00eentr-o varietate de arii, de la anvelope care se pot ajusta automat \u00een func\u021bie de starea carosabilului p\u00e2n\u0103 la sisteme reutilizabile pentru lansarea rachetelor care ar putea suporta astfel mai multe misiuni c\u0103tre spa\u021biul cosmic.<\/p>\n<p><em>Sursa: Agerpres<\/em><\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe class='youtube-player' width='800' height='450' src='https:\/\/www.youtube.com\/embed\/-QqdjmpKcrE?version=3&#038;rel=1&#038;fs=1&#038;autohide=2&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;wmode=transparent' allowfullscreen='true' style='border:0;'><\/iframe><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un grup de cercet\u0103tori de la Universitatea Michigan din Statele Unite a dezvoltat recent un nou material care \u00ee\u0219i poate<\/p>\n","protected":false},"author":1,"featured_media":18551,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","footnotes":"","jetpack_publicize_message":""},"categories":[1],"tags":[],"class_list":["post-18550","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/i1.wp.com\/realitatearutiera.ro\/wp-content\/uploads\/2017\/01\/material.jpg?fit=%2C&ssl=1","jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p61naM-4Pc","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/18550","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=18550"}],"version-history":[{"count":1,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/18550\/revisions"}],"predecessor-version":[{"id":18552,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/18550\/revisions\/18552"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/media\/18551"}],"wp:attachment":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18550"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18550"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18550"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}