Ograniczanie wyników

Czasopisma help

  1. 26 Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

  2. 11 Annals of Warsaw Agricultural University. Forestry and Wood Technology

  3. 10 Przemysł Drzewny

  4. 3 Hodowca Bydła

  5. 1 Acta Biochimica Polonica

Więcej...
Autorzy help

  1. 55 Mankowski P.

  2. 20 Krzosek S.

  3. 5 Grzeskiewicz M.

  4. 4 Boruszewski P.

  5. 4 Burawska-Kupniewska I.

Więcej...
Lata help

  1. 1 2024

  2. 1 2023

  3. 2 2022

  4. 4 2020

  5. 2 2019

Więcej...
Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 55

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 3 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 3 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
1

Nowa metoda pomiaru lokalnej wartosci modulu sprezystosci drewna

100%
Mankowski P., Gierlik E.
Przemysł Drzewny
|
2001
|
tom 52
|
nr 01
22-23
2

Analysis of effect of measuring length on results of local measurement of ultrasound propagation speed in wood

100%
Mankowski P., Gorski J.
Annals of Warsaw Agricultural University. Forestry and Wood Technology
|
2004
|
tom 55
The ultrasound propagation speed can provide information on several wood properties. In traditional measurement methods the distance between the transmitter and the receiver of ultrasound signal needs to be equal to the total length of the tested element. In special cases an alternative, local measurement method is recommended. The aim of this paper is to determine and analyse the effect of measuring length on results of local measurement of ultrasound propagation speed in wood.
3

Resistance of lime wood (Tilia sp.) impr egnated with Paraloid B-72 resin against cellar fungus Coniophora puteana (Schum., Fr.) Karst

100%
Adreas B., Mankowski P.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2011
|
tom 73
Resistance of lime wood (Tilia sp) impregnated with Paraloid B-72 resin against cellar fungus Coniophora puteana (Schum., Fr.) Karst. Work deals with resistance of Paraloid B-72 synthetic resin impregnated lime wood against cellar fungus Coniophora puteana. Resin solutions of 5, 10 and 20% concentrations were used. In laboratory conditions, impregnated samples were exposed to fungus for 16 weeks. It was determined that lime wood impregnated with Paraloid B-72 resin is not resistant against fungi. Keywords: Paraloid B-72, Coniophora puteana, weight loss.
4
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Compression strength of pine wood (Pinus sylvestris L.) from selected forest regions in Poland. Part II

100%
Mankowski P., Krzosek S.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2013
|
tom 83
5

Penetration dynamics of lime wood surface (Tilia sp.) wetting with Paraloid B-72 solution

100%
Mankowski P., Boruszewski P.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2011
|
tom 75
6

The comparison of stereometric and radiometric (based on Compton effect) methods of wood density measuring

100%
Mankowski P., Gorski J.
Annals of Warsaw Agricultural University. Forestry and Wood Technology
|
2005
|
tom 57
Comparison of stereometric and radiometric (based on Compton effect), methods of measuring wood density. The stereometric measurements of wood density involve accurate preparing of special, regular specimens. On the contrary to stereometric method the radiometric densitometry is non-destructive, quick and enables to determine local value of wood density. The relation between results obtained by means of both (compared) methods can be characterised by quite high correlation coefficient (r-0,88).
7

The distribution of density in the stem of spruce wood

100%
Mankowski P., Gorski J.
Annals of Warsaw Agricultural University. Forestry and Wood Technology
|
2005
|
tom 57
The distribution of density in the stem of spruce wood. The aim of the study was to determine the distribution of local density in the stem of spruce wood. The settings of radiometric densimeter allow to measure the density of wood contained in the quite small cylinder (diameter of the cylinder: 50 mm). The weak decrease in the density of wood was observed for an increase in distance from the butt end (for an increase in height of measuring point). The instantaneous (the distance between nearest measuring points was 50 mm) change in density of wood can reach 50 kg/m3.
8

Effect of sawn timber thickness on results of local measurement of ultrasound propagation speed

100%
Mankowski P., Gorski J.
Annals of Warsaw Agricultural University. Forestry and Wood Technology
|
2004
|
tom 55
Traditional measurement of ultrasound propagation speed provide averaged results for the whole volume of the tested element. Therefore in special cases an alternative, local measurement method is recommended. Local measurements (involving application of the testing equipment heads to the same surface of the element being tested) provide particularly good method for identifying properties of materials located not deeper than 15 mm from the sample surface.
9
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Determination of the compressive strength parallel to the grain of resinous yellow pine heartwood

100%
Mankowski P., Laskowska A.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2020
|
tom 109
10

Thermal and photolytic ageing of Winacet RA

100%
Mankowski P., Radomski A.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2010
|
tom 71
11

Zastosowanie promieniowania RTG w nieniszczacych badaniach drewna

100%
Mankowski P., Krzosek S.
Przemysł Drzewny
|
2001
|
tom 52
|
nr 03
19-24
12

Komputer w tartaku

100%
Krzosek S., Mankowski P.
Przemysł Drzewny
|
2000
|
tom 51
|
nr 01
28-30
13

Nowy asortyment DeLaval - pompa do gnojowicy EP300. Szybkie przepompowanie gnojowicy na większe odległości

99%
Mankowski P.
Hodowca Bydła
|
2017
|
nr 09
14

Mesures non destructives de la densite - methodes d'evaluation de l'etat des supports en bois

81%
Gierlik E., Mankowski P., Pilecka-Pietrusinska E., Wilkojc E.
Annals of Warsaw Agricultural University. Forestry and Wood Technology
|
2003
|
tom 54
15

Theoretical and practical usefulness of radiation methods for wood density testing

81%
Dzbenski W., Mankowski P., Krzosek S.
Folia Forestalia Polonica. Series B - Drzewnictwo
|
2008
|
tom 39
16

Chemical studies of ozone impact on pinew ood (Pinus sylvestris L.) degradation

81%
Antczak A., Mankowski P., Boruszewski P.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2011
|
tom 73
Chemical studies of ozone impact on pinewood (Pinus sylvestris L.) degradation. The purpose of these studies was verification the impact of ozone on wood degradation. Study the degree of wood degradation was carried out using classical chemical methods – content determination of substances soluble in 1% NaOH, extractives and cellulose isolated by Seifert method. Also, in this work modern analytical SEC method was used to determine the polymerization degree of the main wood structural component – cellulose. On the basis of these results, it was observed, that ozone increases of the content of substances soluble in 1% NaOH and extractives. This indicates, that the wood structural substances are decomposed: the part of lignin and polysaccharides (hemicelluloses, cellulose) - especially with a low degree of polymerization. On the basis of chromatographic analysis (SEC), it appears that the cellulose of the highest molar mass is also prone to depolymerization. Although the percentage content of the cellulose does not change, but under the influence of ozone comes to qualitative change of cellulose - decrease of polymerization degree.
17
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

The use of a structural monitoring system in deformation surveying of a wooden beam during the destructive test

81%
Karsznia K., Mankowski P., Krembuszewski D.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2018
|
tom 103
18

The investigation of the usefulness of thermoplastic polymers for the production of carpenter's hot-melt adhesives

81%
Gos B., Mankowski P., Rajkiewicz M., Piaskiewicz M.
Annals of Warsaw Agricultural University. Forestry and Wood Technology
|
1999
|
tom 49
19

Iron chloride solution penetration into oak wood

81%
Mankowski P., Zielenkiewicz T., Boruszewski P.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2010
|
tom 71
20

Evaluation of Paraloid B-72 lime wood reinforcement efficiency

81%
Kozakiewicz P., Mankowski P., Wilkojc E.
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
|
2011
|
tom 74
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 3 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.