About: Identification of Defects in Materials with Surface Conductivity Distribution

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The images of the electrical surface conductivity distribution can be reconstructed from the voltage measurement captured on the boundaries of an object. This very well known technique is named Electrical Impedance Tomography. The image reconstruction problem is an ill-posed inverse problem of finding such conductivity that minimizes some optimisationcriterion, which can be given by a suitable primal objective function. This paper describes new algorithms based on stochastic methods to be used for the acquirement of more accurate reconstruction results and stable solution. The proposed methods are expected to non-destructive test of materials. It will be shown examples of the identi?cation of voids or cracks in special structures called honeycombs. Instead of the experiments we used phantom evaluated voltage values based on the application of ?nite element method. The advantages of a new approach are compared with properties of a deterministic approach to the same image reconstructions. The images of the electrical surface conductivity distribution can be reconstructed from the voltage measurement captured on the boundaries of an object. This very well known technique is named Electrical Impedance Tomography. The image reconstruction problem is an ill-posed inverse problem of finding such conductivity that minimizes some optimisationcriterion, which can be given by a suitable primal objective function. This paper describes new algorithms based on stochastic methods to be used for the acquirement of more accurate reconstruction results and stable solution. The proposed methods are expected to non-destructive test of materials. It will be shown examples of the identi?cation of voids or cracks in special structures called honeycombs. Instead of the experiments we used phantom evaluated voltage values based on the application of ?nite element method. The advantages of a new approach are compared with properties of a deterministic approach to the same image reconstructions. (en)
Title	Identification of Defects in Materials with Surface Conductivity Distribution Identification of Defects in Materials with Surface Conductivity Distribution (en)
skos:prefLabel	Identification of Defects in Materials with Surface Conductivity Distribution Identification of Defects in Materials with Surface Conductivity Distribution (en)
skos:notation	RIV/00216305:26220/08:PU73838!RIV10-MSM-26220___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021630513)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Dědková, Jarmila
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta elektrotechniky a komunikačních technologií
http://linked.open...dnocenehoVysledku	371212
http://linked.open...ai/riv/idVysledku	RIV/00216305:26220/08:PU73838
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Electric impedance tomography, honeycombs (en)
http://linked.open.../riv/klicoveSlovo	Electric impedance tomography honeycombs
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[28F7BDFB7452]
http://linked.open...i/riv/nazevZdroje	PIERS ONLINE
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	4
http://linked.open...iv/tvurceVysledku	Dědková, Jarmila
http://linked.open...n/vavai/riv/zamer	Advanced Electronic Communication Systems and Technologies (ELCOM)
issn	1931-7360
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	26220

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