Temat: wood strength - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Radial variation of mechanical properties of spruce wood (Picea abies L.) in tension along the grain
Autorzy:: Roszyk, E.
Molinski, W.
Fabisiak, E.
Cunderlik, I.
Powiązania:: https://bibliotekanauki.pl/articles/30016.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: mechanical property
spruce wood
wood
Picea abies
tension
grain
elasticity
specific strength
strength
Źródło:: Folia Forestalia Polonica. Series B - Drzewnictwo; 2010, 41
0071-6685
Pojawia się w:: Folia Forestalia Polonica. Series B - Drzewnictwo
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Chosen properties of oak wood immersed for 6 months in the Baltic Sea
Autorzy:: Fojutowski, A.
Wroblewska, H.
Kropacz, A.
Komorowicz, M.
Noskowiak, A.
Pomian, I.
Powiązania:: https://bibliotekanauki.pl/articles/29858.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: chosen property
oak wood
Baltic Sea
strength
fungi
decay
chemical composition
archaeological wood
Opis:: Changes of physical and chemical properties, mass loss and susceptibility of oak wood to decay caused by Basidiomycetes fungi were assessed after wood samples had been taken out of the sea within the framework of MACHU project. Test samples of oak wood of the dimensions of 250 × 10 × 10 mm were placed in coastal waters of the Baltic Sea at the area of medieval seaport in Puck and in waters of the Gdansk Bay at the same longitude as Orłowo (near the wreck of Swedish warship Solen). The samples taken out of the sea were examined visually and described. Changes in mass of the samples, their bending strength and modulus of elasticity, compression strength along the grain, ability to decay caused by Trametes versicolor fungus, content of mineral substances and substances soluble in water, ethanol-benzene mixture and in 1-percent aqueous solution of NaOH, content of cellulose, lignin and pentosanes as well as pH of the wood were investigated. The properties of samples taken out of the sea after 6 months of immersion were compared with the properties of control twin samples of oak wood which had not been immersed. The results obtained so far indicate that noticeable, measurable changes in oak wood immersed in sea occur already in half a year since immersion, so observation of them may be useful for protection and monitoring of underwater archaeological objects.
Źródło:: Folia Forestalia Polonica. Series B - Drzewnictwo; 2011, 42
0071-6685
Pojawia się w:: Folia Forestalia Polonica. Series B - Drzewnictwo
Dostawca treści:: Biblioteka Nauki

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