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Dive into the research topics where T. Zielenkiewicz is active.

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Featured researches published by T. Zielenkiewicz.


Przemysl Chemiczny | 2015

Analiza zawartości fosfonianów w materiale roślinnym

Teresa Kłosińska; Ewa Archanowicz; Andrzej Antczak; A Radomski; T. Zielenkiewicz; Tomasz Oszako; Justyna A. Nowakowska; Katarzyna Kubiak; Miłosz Tkaczyk

Praca wykonana w ramach projektu badawczego Life 11 ENV/PL/459 PROJECT ACRONIM: HESOFF „Evaluation of the health state of forests and an effect of phosphite treatments with the use of photovoltaic SLE”, finansowanego przez The European Community according to LIFE + Program and by the National Fund for Environmental Protection and Water Management in Poland.


Przemysl Chemiczny | 2015

Wpływ furfuralu na aktywność enzymu podczas hydrolizy celulozy wyodrębnionej z drewna topoli (Populus sp.)

J. Zawadzki; D. Szadkowska; A. Antczak; A Radomski; M. Drożdżek; T. Zielenkiewicz; T. Kłosińska

Praca byla finansowana w ramach projektu badawczego NCBiR Nr PBS1/A8/16/2013 „Wykorzystanie linii topoli o zwiekszonym potencjale przyrostu biomasy i ulepszonej kompozycji chemicznej drewna w technologii produkcji papieru i biopaliw”.


European Journal of Wood and Wood Products | 2012

XRF examination of matrix uniqueness in chosen deciduous wood species

T. Zielenkiewicz; A Radomski; J Zawadzki

Matrix uniqueness in different wood species was analysed using X-ray spectrometry in order to specify, whether separate calibration for particular species is required. Results of XRF measurements of three deciduous species specimens were compared: oak (Quercus robur L.), beech (Fagus sylvatica L.) and birch (Betula pendula). Three forms of specimens were examined: solid wood, powdered wood and pelletized powdered wood. Results show that each species is definitely a different matrix, as well as each form of a sample. It means that different calibration is needed for each species in order to perform quantitative analysis. Comparison of results of the same species samples should be performed for samples of the same form.ZusammenfassungUm zu bestimmen, ob eine getrennte Kalibrierung bestimmter Holzarten notwendig ist, wurde mit einem Röntgenspektrometer untersucht, wie diese als Matrix die Ergebnisse beeinflusst. Die Ergebnisse der Röntgenfluoreszenzmessung der drei Laubholzarten Eiche (Quercus robur L.), Buche (Fagus sylvatica L.) und Birke (Betula pendula) wurden verglichen und zugleich jeweils in den drei Probenformen Massivholz, Holzmehl und Holzpellets untersucht. Die Ergebnisse zeigen, dass jede Holzart sowie jede Probenform eine unterschiedliche Matrix darstellt. Dies bedeutet, dass für eine quantitative Analyse eine getrennte Kalibrierung für jede Holzart notwendig ist. Für den Vergleich innerhalb einer Holzart sollte jeweils die gleiche Probenform verwendet werden.


X-Ray Spectrometry | 2012

XRF spectrometer calibration for copper determination in wood

T. Zielenkiewicz; J Zawadzki; A Radomski


Drewno. Prace Naukowe. Doniesienia. Komunikaty | 2012

CELLULOSE CRYSTALLINITY INDEX EXAMINATION IN OAK WOOD ORIGINATED FROM ANTIQUE WOODWORK

Jakub Gawron; Magdalena szczęsna; T. Zielenkiewicz; Tomasz Gołofit


Archive | 2011

THE INFLUENCE OF TIME AND TEMPERATURE OF BEECH WOOD (FAGUS SYLVATICA L.) HEAT TREATMENT IN SUPERHEATED STEAM ON THE CARBOHYDRATES CONTENT

Jakub Gawron; J Zawadzki; T. Zielenkiewicz; A Radomski


European Journal of Wood and Wood Products | 2012

FTIR examination of preservative retention in beech wood (Fagus sylvatica L.)

Tomasz Gołofit; T. Zielenkiewicz; Jakub Gawron


Archive | 2011

ANALYSIS OF WOOD CELLULOSE MECHANICAL DEGRADATION DURING BEATING PROCESS

J Zawadzki; A Radomski; T. Zielenkiewicz; Piotr Przybysz; Agnieszka Wysocka-Robak; Abstr Act


Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology | 2010

Influence of urban environment originated heavy metals pollution on the content of extractives, cellulose and lignin in the oak wood.

D Krutul; T. Zielenkiewicz; A Radomski; J Zawadzki; M Drozdzek; A. Antczak


Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology | 2007

The content of chemical substances in the bark, rose and wood of common oak (Quercus petraea Liebl.)

D Krutul; J Zawadzki; A Radomski; T. Zielenkiewicz; A. Antczak

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A Radomski

Warsaw University of Life Sciences

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J Zawadzki

Warsaw University of Life Sciences

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A. Antczak

Warsaw University of Life Sciences

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D Krutul

Warsaw University of Life Sciences

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M Drozdzek

Warsaw University of Life Sciences

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Jakub Gawron

Warsaw University of Life Sciences

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Tomasz Gołofit

Warsaw University of Technology

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Andrzej Antczak

Warsaw University of Life Sciences

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