{"id":6096,"date":"2026-10-19T09:48:28","date_gmt":"2026-10-19T09:48:28","guid":{"rendered":"https:\/\/phd.hi.is\/doktorsvorn\/doktorsvorn-i-efnafraedi-sergei-y-liashko\/"},"modified":"2026-10-19T09:48:28","modified_gmt":"2026-10-19T09:48:28","slug":"doktorsvorn-i-efnafraedi-sergei-y-liashko","status":"publish","type":"phd_defence","link":"https:\/\/phd.hi.is\/en\/doktorsvorn\/doktorsvorn-i-efnafraedi-sergei-y-liashko\/","title":{"rendered":"Doktorsv\u00f6rn \u00ed efnafr\u00e6\u00f0i – Sergei Y. Liashko"},"content":{"rendered":"
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Doktorsefni:<\/strong> Sergei Y. Liashko<\/p>\n

Heiti ritger\u00f0ar:<\/strong> Varmadrifnar breytingar \u00e1 seglun \u00ed sm\u00e1s\u00e6jum segulkerfum.<\/p>\n

Andm\u00e6lendur:<\/strong><\/p>\n

Robert L. Stamps, pr\u00f3fessor og deildarstj\u00f3ri vi\u00f0 Manitoba-h\u00e1sk\u00f3la \u00ed Kanada<\/p>\n

Dr. Peter Derlet, s\u00e9rfr\u00e6\u00f0ingur hj\u00e1 Paul Scherrer stofnuninni \u00ed Swiss.<\/p>\n

Lei\u00f0beinendur:<\/strong> Hannes J\u00f3nsson, pr\u00f3fessor vi\u00f0 Raunv\u00edsindadeild H\u00e1sk\u00f3la \u00cdslands og Valery M. Uzdin, pr\u00f3fessor \u00ed e\u00f0lisfr\u00e6\u00f0i vi\u00f0 ITMO h\u00e1sk\u00f3la \u00ed St. P\u00e9tursborg.<\/p>\n

A\u00f0rir \u00ed doktorsnefnd: <\/strong>\u00a0Pavel Bessarab, S\u00e9rfr\u00e6\u00f0ingur, Raunv\u00edsindastofnun H\u00e1sk\u00f3lans og Unnar Arnalds, S\u00e9rfr\u00e6\u00f0ingur, Raunv\u00edsindastofnun H\u00e1sk\u00f3lans<\/p>\n

Doktorsv\u00f6rn st\u00fdrir:<\/strong> Oddur Ing\u00f3lfsson, deildarforseti Raunv\u00edsindadeildar.<\/p>\n

\u00c1grip af ranns\u00f3kn: <\/strong>Sm\u00e1s\u00e6jar segulagnir gegna mikilv\u00e6gu hlutverki v\u00ed\u00f0a, t.a.m. \u00ed sm\u00e1stirnum og steindum jar\u00f0skorpunnar, sem og \u00ed l\u00edfverum og h\u00e1t\u00e6knihlutum eins og stafr\u00e6num gagnageymslum. \u00dea\u00f0 er mikilv\u00e6gt a\u00f0 geta l\u00fdst eiginleikum sl\u00edkra agna vi\u00f0 gefi\u00f0 hitastig og ytra segulsvi\u00f0. \u00cd ritger\u00f0inni er greint fr\u00e1 \u00fer\u00f3un \u00e1 a\u00f0fer\u00f0 til a\u00f0 meta l\u00edft\u00edma segul\u00e1standa \u00ed sm\u00e1s\u00e6jum segul\u00f6gnum. A\u00f0fer\u00f0in byggist \u00e1 virkjunar\u00e1standskenningunni \u00e1samt kj\u00f6rsveifilsn\u00e1lgun og samsvarar \u00fatv\u00edkkun \u00e1 Stoner-Wohlfarth l\u00edkingunni me\u00f0 \u00fev\u00ed a\u00f0 innlei\u00f0a \u00e1hrif hitastigs. Einfaldar l\u00edkingar eru leiddar \u00fat fyrir l\u00edft\u00edma segul\u00e1standa sem fall af styrkleika segulsvi\u00f0sins og hitastigi fyrir tilteknar stefnur svi\u00f0sins. Eiginleikar samsafna af segul\u00f6gnum \u00ed spuna\u00edseiningum eru kanna\u00f0ir og \u00fatreikna\u00f0ur l\u00edft\u00edmi grunn\u00e1standa sl\u00edkra kerfa reynist vera \u00ed g\u00f3\u00f0u samr\u00e6mi vi\u00f0 birtar m\u00e6lini\u00f0urst\u00f6\u00f0ur.<\/p>\n

Um doktorsefni\u00f0: <\/strong>Sergei Liashko f\u00e6ddist \u00e1ri\u00f0 1990 \u00ed b\u00e6num Vorkuta \u00ed R\u00fasslandi. Hann lauk M.S. pr\u00f3fi \u00ed hagn\u00fdtri st\u00e6r\u00f0fr\u00e6\u00f0i og t\u00f6lvunarfr\u00e6\u00f0i vi\u00f0 ITMO h\u00e1sk\u00f3la \u00e1ri\u00f0 2013. Hann h\u00f3f doktorsn\u00e1m vi\u00f0 ITMO h\u00e1sk\u00f3la en fr\u00e1 haustinu 2015 hefur hann veri\u00f0 \u00ed sameiginlegu doktrorsn\u00e1mi vi\u00f0 H\u00e1sk\u00f3la \u00cdslands og ITMO h\u00e1sk\u00f3la. \u00c1hugam\u00e1l hans eru m.a. sagnfr\u00e6\u00f0i og sund.<\/p>\n

Facebook vi\u00f0bur\u00f0ur<\/a><\/p>\n<\/div><\/div>","protected":false},"featured_media":1861,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_phd_date_start":"2017-12-08T14:00:00+00:00","_phd_date_end":"2017-12-08T17:00:00+00:00","_phd_location":"Askja N-132","_phd_admission":"V\u00f6rnin fer fram \u00e1 ensku","_phd_thesis_title":"Varmadrifnar breytingar \u00e1 seglun \u00ed sm\u00e1s\u00e6jum segulkerfum","_phd_source_url":"https:\/\/gamli.hi.is\/vidburdir\/doktorsvorn_i_efnafraedi_sergei_y_liashko","_phd_source_node_id":"309194","_phd_source_type":"vidburdir","_phd_member_id":492,"footnotes":""},"phd_school":[101,93],"phd_discipline":[102],"class_list":["post-6096","phd_defence","type-phd_defence","status-publish","has-post-thumbnail","hentry","phd_school-raunvisindadeild","phd_school-verkfraedi-og-natturuvisindasvid","phd_discipline-phd-i-efnafraedi"],"_links":{"self":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence\/6096","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence"}],"about":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/types\/phd_defence"}],"version-history":[{"count":0,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence\/6096\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/media\/1861"}],"wp:attachment":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/media?parent=6096"}],"wp:term":[{"taxonomy":"phd_school","embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_school?post=6096"},{"taxonomy":"phd_discipline","embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_discipline?post=6096"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}