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Statements

Subject Item
n2:RIV%2F60460709%3A41310%2F04%3A7746%21RIV%2F2005%2FMSM%2F413105%2FN
rdf:type
n8:Vysledek skos:Concept
dcterms:description
Microhardness was used for study of wood structure (Norway spruce – Picea abies L.) in range 0.1 – 100 mm dimensions. The steel indentor 0.25 mm in diameter with flat head was used for this purpose in penetration tests by constant velocity (0.0167 mm.s-1, the maximum depth 0.3 mm). The strength was defined as the mean pressure on the indentor head at 0.02 mm penetration. The set of the tests (~ 320) arranged under a line perpendicular to the annual rings in the radial plane gave an information on the stress variation in dependence to location of the test plane in relation to the understood as a parameter describing the grow wood properties similarly as the density usually used in dendrochronology. The observed strength variation is in agreement with visually observed annual rings. The obtained date made possible to determine the mean characteristic points of the annual ring as well as the development of the parameters in dependence of the weather variations. Microhardness was used for study of wood structure (Norway spruce – Picea abies L.) in range 0.1 – 100 mm dimensions. The steel indentor 0.25 mm in diameter with flat head was used for this purpose in penetration tests by constant velocity (0.0167 mm.s-1, the maximum depth 0.3 mm). The strength was defined as the mean pressure on the indentor head at 0.02 mm penetration. The set of the tests (~ 320) arranged under a line perpendicular to the annual rings in the radial plane gave an information on the stress variation in dependence to location of the test plane in relation to the understood as a parameter describing the grow wood properties similarly as the density usually used in dendrochronology. The observed strength variation is in agreement with visually observed annual rings. The obtained date made possible to determine the mean characteristic points of the annual ring as well as the development of the parameters in dependence of the weather variations. Microhardness was used for study of wood structure (Norway spruce – Picea abies L.) in range 0.1 – 100 mm dimensions. The steel indentor 0.25 mm in diameter with flat head was used for this purpose in penetration tests by constant velocity (0.0167 mm.s-1, the maximum depth 0.3 mm). The strength was defined as the mean pressure on the indentor head at 0.02 mm penetration. The set of the tests (~ 320) arranged under a line perpendicular to the annual rings in the radial plane gave an information on the stress variation in dependence to location of the test plane in relation to the understood as a parameter describing the grow wood properties similarly as the density usually used in dendrochronology. The observed strength variation is in agreement with visually observed annual rings. The obtained date made possible to determine the mean characteristic points of the annual ring as well as the development of the parameters in dependence of the weather variations.
dcterms:title
Mikrotuhostní studie kmenového dřeva Microhardness study of trunk wood Microhardness study of trunk wood
skos:prefLabel
Microhardness study of trunk wood Microhardness study of trunk wood Mikrotuhostní studie kmenového dřeva
skos:notation
RIV/60460709:41310/04:7746!RIV/2005/MSM/413105/N
n3:strany
0;0
n3:aktivita
n21:Z
n3:aktivity
Z(MSM 413100014)
n3:dodaniDat
n15:2005
n3:domaciTvurceVysledku
n18:1348736
n3:druhVysledku
n9:D
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
573488
n3:idVysledku
RIV/60460709:41310/04:7746
n3:jazykVysledku
n7:eng
n3:klicovaSlova
Tree annual ring, micro-hardness, wood, spruce, penetration, strength, density, dendrochronolog
n3:klicoveSlovo
n4:dendrochronolog n4:strength n4:micro-hardness n4:density n4:penetration n4:wood n4:spruce n4:Tree%20annual%20ring
n3:kontrolniKodProRIV
[ABAD33806642]
n3:mistoKonaniAkce
Leuven (Belgium)
n3:mistoVydani
Leuven (Belgium)
n3:nazevZdroje
AgEng 2004 Conference: Engineering the Future
n3:obor
n12:GA
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:rokUplatneniVysledku
n15:2004
n3:tvurceVysledku
Blahovec, Jiří
n3:typAkce
n16:WRD
n3:zahajeniAkce
2004-09-12+02:00
n3:zamer
n5:MSM%20413100014
s:numberOfPages
1
n10:hasPublisher
Technologisch instuut vzw
n20:isbn
90-76019-258
n14:organizacniJednotka
41310