{"?xml":{"@version":"1.0"},"edm:RDF":{"@xmlns:dc":"http://purl.org/dc/elements/1.1/","@xmlns:edm":"http://www.europeana.eu/schemas/edm/","@xmlns:wgs84_pos":"http://www.w3.org/2003/01/geo/wgs84_pos","@xmlns:foaf":"http://xmlns.com/foaf/0.1/","@xmlns:rdaGr2":"http://rdvocab.info/ElementsGr2","@xmlns:oai":"http://www.openarchives.org/OAI/2.0/","@xmlns:owl":"http://www.w3.org/2002/07/owl#","@xmlns:rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","@xmlns:ore":"http://www.openarchives.org/ore/terms/","@xmlns:skos":"http://www.w3.org/2004/02/skos/core#","@xmlns:dcterms":"http://purl.org/dc/terms/","edm:WebResource":[{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-WLA5XH32/0e305715-dfde-4823-9e02-4d41b3a05b42/HTML","dcterms:extent":"18 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-WLA5XH32/7337578b-808f-4a78-bb79-72611f014b52/PDF","dcterms:extent":"863 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-WLA5XH32/5ed3104d-5f28-4fda-80a0-e4d5115dde20/TEXT","dcterms:extent":"17 KB"}],"edm:TimeSpan":{"@rdf:about":"1992-1999","edm:begin":{"@xml:lang":"en","#text":"1992"},"edm:end":{"@xml:lang":"en","#text":"1999"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:doc-WLA5XH32","edm:isNextInSequence":{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:doc-Y1E0MI96"},"dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-QKUCN2BD"},{"@xml:lang":"sl","#text":"Kovine zlitine tehnologije"}],"dcterms:issued":"1997","dc:creator":["Černe, Andrej","Godec, Boštjan","Remec, Črtomir","Vončina, Marko"],"dc:format":[{"@xml:lang":"sl","#text":"številka:1/2"},{"@xml:lang":"sl","#text":"letnik:31"},{"@xml:lang":"sl","#text":"5 strani"},{"@xml:lang":"sl","#text":"str. 129-133"}],"dc:identifier":["ISSN:1318-0010","COBISSID:19066117","URN:URN:NBN:SI:doc-WLA5XH32"],"dc:language":"sl","dc:publisher":[{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},{"@xml:lang":"sl","#text":"Železarna Jesenice"},{"@xml:lang":"sl","#text":"Železarna Ravne"},{"@xml:lang":"sl","#text":"Železarna Štore"}],"dc:subject":[{"@xml:lang":"sl","#text":"jeklene konstrukcije"},{"@xml:lang":"sl","#text":"materiali"},{"@xml:lang":"sl","#text":"neporušitvene preiskave"},{"@xml:lang":"sl","#text":"razpoka"},{"@xml:lang":"sl","#text":"ultrazvočne difrakcije"},{"@xml:lang":"sl","#text":"ultrazvočne preiskave"},{"@rdf:resource":"http://www.wikidata.org/entity/Q214609"}],"dcterms:temporal":{"@rdf:resource":"1992-1999"},"dc:title":{"@xml:lang":"sl","#text":"Možnosti ugotavljanja velikosti napake in njene lege v materialu z ultrazvočno difrakcijo| Possibilities for defect dimension and position identification in material with ultrasonic time-of-flight diffraction|"},"dc:description":[{"@xml:lang":"sl","#text":"Nondestructive testing methods specially ultrasound examination are used to estimate the condition of material as steel construction. Today ultrasonic testing methods are becoming more important as testing equipment enables testing results to be copied out and documented. The ultrasound diffraction method which employs diffracher waves that appear on the sharp edge is presented in the paper. On the basis of the time of flieght as well as known velocity of broadcasting and receiving of ultrasound the position of the top of the crack may be calculated. Laboratory examinations prove that it is possible to determine the precise dimension of cracks and the exact position of defects in material"},{"@xml:lang":"sl","#text":"Za oceno stanja materiala jeklenih konstrukcij uporabljamo neporušne preiskovalne metode, še posebno preiskave z ultrazvokom, ki v zadnjem času še pridobivajo na pomenu, saj novejše aparature omogočajo izpis in s tem dokumentiranje rezultatov opravljenih preiskav. V prispevku je predstavljena metoda ultrazvočne difrakcije, ki izrablja difrakcijske valove, ki nastanejo na ostrem robu. Na osnovi časa prehoda ultrazvoka ob poznani hitrosti oddajnega in sprejemnega valovanja lahko izračunamo položaj konice razpoke. Laboratorijske preiskave so pokazale, da je z uporabo ultrazvočne difrakcijske metode možno določiti velikost in natančen položaj lege napake v materialu"}],"edm:type":"TEXT","dc:type":[{"@xml:lang":"sl","#text":"znanstveno časopisje"},{"@xml:lang":"en","#text":"journals"},{"@rdf:resource":"http://www.wikidata.org/entity/Q361785"}]},"ore:Aggregation":{"@rdf:about":"http://www.dlib.si/?URN=URN:NBN:SI:doc-WLA5XH32","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:doc-WLA5XH32"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:doc-WLA5XH32/7337578b-808f-4a78-bb79-72611f014b52/PDF"},"edm:rights":{"@rdf:resource":"http://rightsstatements.org/vocab/InC/1.0/"},"edm:provider":"Slovenian National E-content Aggregator","edm:dataProvider":{"@xml:lang":"en","#text":"National and University Library of Slovenia"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:doc-WLA5XH32/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:doc-WLA5XH32"}}}}