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Statements

Subject Item
n2:RIV%2F60162694%3AG43__%2F14%3A00521261%21RIV15-MO0-G43_____
rdf:type
n11:Vysledek skos:Concept
rdfs:seeAlso
http://vavtest.unob.cz/registr
dcterms:description
Decommissioning of exercise ranges reflects downsizing of Czech Army. That process (started in 1993) requires disposal of all remnants of military activities, namely unexploded ordnance. Methodology of explosive ordnance clearance (EOC) is based on using of metal detectors. The world wide experience witnesses some factors limiting or even eliminating their utilisation. Metal debris diminishes EOC reliability, when conducted in the outskirts of urban areas. Apart of this, there are cases when false alarms are observed without presence of any metal waste inside ground. This phenomenon was called “mineralisation of ground“ initially. Term “mineralisation” was considered either as a content of mineralized groundwater or as a content of metallic minerals dispersed in rocks. However, the content of ferromagnetic minerals in rocks occurred under scientific interest. Research works have been conducted to clarify its nature and to recommend how to practise EOC procedures under those conditions. Electromagnetic detection is based on the Faraday’s rule of mutual induction between searching coil and a target. From this point of view the expression “mineralized soil” should be rectified. Even impregnation of ferromagnetic materials inside absolutely non-conductive rocks can cause false signal of detector. This is the right reason of “mineralisation”. Where the bedrock consists of rocks containing magnetite, the success of electromagnetic searching occurs at risk. Decommissioning of exercise ranges reflects downsizing of Czech Army. That process (started in 1993) requires disposal of all remnants of military activities, namely unexploded ordnance. Methodology of explosive ordnance clearance (EOC) is based on using of metal detectors. The world wide experience witnesses some factors limiting or even eliminating their utilisation. Metal debris diminishes EOC reliability, when conducted in the outskirts of urban areas. Apart of this, there are cases when false alarms are observed without presence of any metal waste inside ground. This phenomenon was called “mineralisation of ground“ initially. Term “mineralisation” was considered either as a content of mineralized groundwater or as a content of metallic minerals dispersed in rocks. However, the content of ferromagnetic minerals in rocks occurred under scientific interest. Research works have been conducted to clarify its nature and to recommend how to practise EOC procedures under those conditions. Electromagnetic detection is based on the Faraday’s rule of mutual induction between searching coil and a target. From this point of view the expression “mineralized soil” should be rectified. Even impregnation of ferromagnetic materials inside absolutely non-conductive rocks can cause false signal of detector. This is the right reason of “mineralisation”. Where the bedrock consists of rocks containing magnetite, the success of electromagnetic searching occurs at risk.
dcterms:title
Electromagnetic Detection Limitation due to %22Mineralisation of Ground%22 Electromagnetic Detection Limitation due to %22Mineralisation of Ground%22
skos:prefLabel
Electromagnetic Detection Limitation due to %22Mineralisation of Ground%22 Electromagnetic Detection Limitation due to %22Mineralisation of Ground%22
skos:notation
RIV/60162694:G43__/14:00521261!RIV15-MO0-G43_____
n3:aktivita
n15:I
n3:aktivity
I
n3:cisloPeriodika
2/2014
n3:dodaniDat
n7:2015
n3:domaciTvurceVysledku
n8:6398189
n3:druhVysledku
n18:J
n3:duvernostUdaju
n10:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
14156
n3:idVysledku
RIV/60162694:G43__/14:00521261
n3:jazykVysledku
n4:eng
n3:klicovaSlova
Detection; Magnetisation; Basalt type Rock
n3:klicoveSlovo
n5:Magnetisation n5:Basalt%20type%20Rock n5:Detection
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[D017ADB8887C]
n3:nazevZdroje
International Journal of Building Sustainability and Secure
n3:obor
n17:KA
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
2
n3:rokUplatneniVysledku
n7:2014
n3:svazekPeriodika
Neuveden
n3:tvurceVysledku
Kašpar, Ondřej Beyr, Petr
s:issn
2336-4653
s:numberOfPages
11
n16:organizacniJednotka
G43