Wyniki wyszukiwania

1

Vychislenie kozfficienga temperaturoprovodnosti merzlojj drevesiny topolja vo vremja ee ottaivanija

100%

Deliiski N., Brezin F., Dzurenda L., Sokolovski S.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2012

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tom 77

Calculation of the temperature conductivity of frozen poplar wood during its defrosting. An approach for the computation of the wood temperature conductivity a during defrosting of the wood has been suggested. The approach takes into account the physics of the process of thawing of the ice, which is created in the wood by both the hygroscopically bounded and the free water. It reflects for the first time also the influence of the fiber saturation point of wood species on the value of their a during wood defrosting and the influence of the temperature on the fiber saturation point of frozen and non-frozen wood. For the computation of a according to the suggested approach a software program has been prepared in FORTRAN, which has been input in the developed by Microsoft calculation environment of Visual Fortran Professional. With the help of the program computations have been made for the determination of a of often used in the veneer and plywood production poplar wood with moisture content 0.2 ≤ u ≤ 1.2 kg.kg-1 at the temperature range between -2oC and -60oC during defrosting of the wood.

2

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Biegefestigkeit vom Holz der europaischen Larche (Larix decidua Mill.) auf der Versuchsflache der Forstuntersuchungsanstalt LZD Siemianice

84%

Szaban J., Kowalkowski W., Jakubowski M.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2013

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tom 84

3

Druckfestigkeit von Langstfasern der europaischen Larche (Larix decidua Mill.) verschiedener Provenienzen auf der Versuchsflache der LZD Siemianice

84%

Szaban J., Kowalkowski W., Jakubowski M.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2013

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tom 84

4

Testing of the fatigue strength along wood fibres at different moisture contents

84%

Dobrowolska E., Niedbala M., Tabaczynski D.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2021

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tom 115

5

Investigation of relation between moisture content decrease and water mass flow removed from a kiln

84%

Widlak H., Majka J.

Electronic Journal of Polish Agricultural Universities. Series Wood Technology

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2004

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tom 07

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nr 2

Currently, the basic way of wood moisture content decrease control during drying process is measurement of that moisture content with resistance meters on a random selection of timber items. The results of that measurements are particularly unreliable, especially at wood moisture content below fibre saturation point and, on the other hand, they are influenced by accuracy of samples choice. Research considered the problem of monitoring of water mass flow that is removed with air in order to control the course of drying process. As a results of experiments, during drying of pinewood timber, it was stated that the monitoring of outlet air state allows for the verification of measurements of moisture content with resistance meters. The monitoring of air state at inlet and outlet of a kiln creates the possibilities of a more complex control of wood drying process.

6

Tensile, compressive and bending properties of European beech wood at high moisture levels

67%

Ozyhar T., Justrich S., Niemz P.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2012

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tom 79

Ograniczanie wyników

5 Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

1 Electronic Journal of Polish Agricultural Universities. Series Wood Technology

2 Jakubowski M.

2 Kowalkowski W.

2 Szaban J.

1 Brezin F.

1 Deliiski N.

1 Dobrowolska E.

1 Dzurenda L.

1 Justrich S.

1 Majka J.

1 Niedbala M.

1 Niemz P.

1 Ozyhar T.

1 Sokolovski S.

1 Tabaczynski D.

1 Widlak H.

1 2021

2 2013

2 2012

1 2004

Vychislenie kozfficienga temperaturoprovodnosti merzlojj drevesiny topolja vo vremja ee ottaivanija

Biegefestigkeit vom Holz der europaischen Larche (Larix decidua Mill.) auf der Versuchsflache der Forstuntersuchungsanstalt LZD Siemianice

Druckfestigkeit von Langstfasern der europaischen Larche (Larix decidua Mill.) verschiedener Provenienzen auf der Versuchsflache der LZD Siemianice

Testing of the fatigue strength along wood fibres at different moisture contents

Investigation of relation between moisture content decrease and water mass flow removed from a kiln

Tensile, compressive and bending properties of European beech wood at high moisture levels