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align=center><B style="mso-bidi-font-weight: normal"><SPAN
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Berislavićeva 6, </SPAN></B><B
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srijedu 25. sije</SPAN></B><B
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style="FONT-SIZE: 14pt; COLOR: #993300; FONT-FAMILY: 'Century Gothic'; mso-ansi-language: HR">čnja
</SPAN></B><B style="mso-bidi-font-weight: normal"><SPAN
style="FONT-SIZE: 14pt; COLOR: #993300; FONT-FAMILY: 'Century Gothic'">2012. u
18:00 sati</SPAN></B><SPAN
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face="Arial Unicode MS"> <o:p></o:p></FONT></SPAN></B></P>
<P
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align=center><B><SPAN
style="FONT-SIZE: 16pt; COLOR: #55913c; mso-bidi-font-size: 14.0pt"><FONT
face="Arial Unicode MS">Kvazikristali i suvremene predodžbe kristalne strukture<o:p></o:p></FONT></SPAN></B></P>
<P
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align=center><B><SPAN
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</SPAN></B><SPAN
style="COLOR: #55913c; FONT-FAMILY: 'Century Gothic'; LETTER-SPACING: -0.7pt">povodom Nobelove nagrade za kemiju 2011., D. Shechtmannu<B>
-<o:p></o:p></B></SPAN></P>
<P
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align=center><SPAN style="COLOR: #55913c; FONT-FAMILY: 'Century Gothic'">-
uvod u redovitu godišnju Skupštinu Hrvatskog vakuumskog društva -<B><SPAN
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align=center><FONT face="Arial Unicode MS"><SPAN class=object><B><SPAN
style="FONT-SIZE: 14pt; COLOR: black; mso-bidi-font-size: 12.0pt">Dr. sc.
Ognjen Milat</SPAN></B></SPAN><B><SPAN
style="FONT-SIZE: 14pt; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></B></FONT></P></TD></TR>
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<P
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align=center><B><SPAN
style="FONT-SIZE: 13pt; FONT-FAMILY: 'Century Gothic'; mso-bidi-font-size: 8.0pt">Institut
za fiziku, Zagreb</SPAN></B><B style="mso-bidi-font-weight: normal"><SPAN
lang=EN-US
style="FONT-SIZE: 13pt; FONT-FAMILY: 'Century Gothic'; mso-bidi-font-size: 12.0pt; mso-ansi-language: EN-US"><o:p></o:p></SPAN></B></P>
<P style="MARGIN: 5.95pt 0cm 0pt; TEXT-ALIGN: center"
align=center><B><I><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 'Century Gothic'; mso-bidi-font-size: 12.0pt">E-mail:</SPAN></I></B><SPAN
style="FONT-SIZE: 9pt; COLOR: #333333; mso-ansi-language: EN"><FONT
face="Arial Unicode MS"> </FONT></SPAN><B><I><SPAN lang=EN
style="FONT-SIZE: 11pt; COLOR: #333333; FONT-FAMILY: 'Century Gothic'; mso-bidi-font-size: 9.0pt; mso-ansi-language: EN"><A
href="mailto:petek@pitt.edu">milat@ifs.hr</A></SPAN></I></B><B><I><SPAN
lang=EN
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</SPAN></I></B><B><SPAN
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<P class=MsoBodyText
style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: justify; mso-line-height-rule: exactly"><B><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: 'Century Gothic'"> <o:p></o:p></SPAN></B></P>
<P class=CM5
style="MARGIN: 0cm 0cm 5.75pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: justify; mso-line-height-rule: exactly"><B><SPAN
lang=EN-US
style="FONT-FAMILY: 'Century Gothic'; mso-bidi-font-size: 11.5pt; mso-ansi-font-size: 12.0pt">Do
nedavno (do1970-tih) materijali su strukturno klasificirani ili kao
bezoblični-amorfni ili kao oblikovano kristalni; to će reći: ili bez
ikakve atomno-molekulske uređenosti ili s periodično ponavljajućim
uređenjem atoma u prostoru (u “našem” - trodimenzionalnom prostoru;
unutar jedinične ćelije, u 3-D rešetci). Otkriće kvazikristala
(Shechtman et.al. PRL 53,1984 pp 1951; Nobelova nagrada za kemiju 2011.),
tj kao-kristalne strukture sa zabranjenom simetrijom 5. reda bez 3-D
periodične rešetke, protreslo je temelje klasične kristalografije, ali i
“naše“ uobičajene predodžbe o kristalima.<o:p></o:p></SPAN></B></P>
<P class=MsoBodyText
style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: justify; mso-line-height-rule: exactly"><B><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: 'Century Gothic'; mso-bidi-font-size: 11.5pt">Na
primjerima svojih strukturnih<SPAN style="mso-spacerun: yes">
</SPAN>istraživanja amorfnih materijala, klasičnih, moduliranih i
kompozitnih kristala te kvazikristala, prikazat ću i opisati koncepte
suvremene kristalografije. U suvremenoj je kristalografiji koncept
translacijske simetrije rekonstruiran – ali u proširenom
višedimenzionalnom prostoru; time su omogućene i aperiodičnosti u “našem”
3-D prostoru i skalirajuća sebisličnost i zabranjene osi 5-, 8-, 10- i 12-
reda. Međutim, time se zahtijeva i napuštanje “naše” uobičajene predodžbe
o kristalnoj strukturi s atomima kao kuglicama ili
točkama.</SPAN></B><B><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: 'Century Gothic'"><o:p></o:p></SPAN></B></P>
<P class=MsoBodyText
style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 10pt; TEXT-ALIGN: justify; mso-line-height-rule: exactly"><B><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: 'Century Gothic'"> <o:p></o:p></SPAN></B></P>
<P class=MsoBodyText
style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 10pt; TEXT-ALIGN: justify; mso-line-height-rule: exactly"><FONT
size=2> <B><SPAN
style="FONT-SIZE: 11pt; COLOR: blue; FONT-FAMILY: 'Century Gothic'; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></B></FONT></P></TD></TR>
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><B><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: 'Century Gothic'; mso-bidi-font-size: 12.0pt">Predsjednik
Hrvatskog vakuumskog društva: Slobodan Milošević
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