Precizia cu care se ob\u021bin datele experimentale depinde \u00een m\u0103sur\u0103 determinant\u0103 de aparatura \u0219tiin\u021bific\u0103 de care se dispune. Dac\u0103 m\u0103sur\u0103torile de presiune apar\u021bin unui domeniu oarecum mai special, m\u0103sur\u0103torile de temperatur\u0103 intervin practic \u00een toate domeniile de cercetare \u0219tiin\u021bific\u0103. Pentru m\u0103surarea temperaturii \u00een laboratoarele de cercetare, IUPAC recomand\u0103 un singur instrument: termometrul cu rezisten\u021b\u0103 de platin\u0103. Ob\u021binerea presiunilor mari \u0219i foarte mari a condus la realizarea unor cercet\u0103ri \u0219tiin\u021bifice cu caracter fundamental deosebit de spectaculoase. Este suficient s\u0103 amintim ob\u021binerea hidrogenului sub form\u0103 metalic\u0103 (la presiunea enorm\u0103 de milioane de bari) sau modificarea caracterului chimic al elementelor ca urmare a rearanj\u0103rii electronilor pe nivelele de energie, sub efectul presiunii. \u00cen lucrare sunt expuse c\u00e2teva direc\u021bii de cercetare cu caracter fundamental \u0219i aplicativ din domeniul presiunilor \u00eenalte: comportarea elementelor \u0219i compu\u0219ilor chimici la presiuni ridicate, tehnici experimentale caracteristice domeniului (HPLC, SFC \u0219i SF), c\u00e2teva exemple de sinteze la presiuni \u00eenalte (sinteze de minerale, sinteza diamantului, sinteza compu\u0219ilor \u201cperiodici\u201d).<\/p>\n","protected":false},"excerpt":{"rendered":"
Precizia cu care se ob\u021bin datele experimentale depinde \u00een m\u0103sur\u0103 determinant\u0103 de aparatura \u0219tiin\u021bific\u0103 de care se dispune. Dac\u0103 m\u0103sur\u0103torile de presiune apar\u021bin unui domeniu oarecum mai special, m\u0103sur\u0103torile de temperatur\u0103 intervin practic \u00een toate domeniile de cercetare \u0219tiin\u021bific\u0103. Pentru m\u0103surarea temperaturii \u00een laboratoarele de cercetare, IUPAC recomand\u0103 un singur instrument: termometrul cu rezisten\u021b\u0103 de […]<\/p>\n","protected":false},"featured_media":8938,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[982,984],"product_tag":[908],"class_list":{"0":"post-4850","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-stiinte-exacte","7":"product_cat-fizica","8":"product_tag-fizica","10":"first","11":"outofstock","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/editura-unibuc.ro\/en\/wp-json\/wp\/v2\/product\/4850","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/editura-unibuc.ro\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/editura-unibuc.ro\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/editura-unibuc.ro\/en\/wp-json\/wp\/v2\/comments?post=4850"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/editura-unibuc.ro\/en\/wp-json\/wp\/v2\/media\/8938"}],"wp:attachment":[{"href":"https:\/\/editura-unibuc.ro\/en\/wp-json\/wp\/v2\/media?parent=4850"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/editura-unibuc.ro\/en\/wp-json\/wp\/v2\/product_brand?post=4850"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/editura-unibuc.ro\/en\/wp-json\/wp\/v2\/product_cat?post=4850"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/editura-unibuc.ro\/en\/wp-json\/wp\/v2\/product_tag?post=4850"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}