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Eigenschaften von Werkstoffen auf Vollholzbasis

100%

Niemz P.

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

2014

tom 88

Werkstoffe auf Vollholzbasis gewinnen zunehmend an Bedeutung. Ihre Produktion wurde durch die Entwicklung synthetischer Klebstoffe mit hoher Zuverlässigkeit möglich. Die Werkstoffe ermöglichen eine hohe Vorfertigung. In den letzten Jahren erfolgte eine deutliche Zunahme des Einsatzes von Holzwerkstoffen, insbesondere Massivholzplatten im mehrgeschossigen Wohnungsbau aber auch für Hallen, Schulen oder grosse öffentliche Bauten. Im Beitrag werden wichtige Holzwerkstoffe auf Basis von Vollholz und deren Eigenschaften vorgestellt. Ergänzend werden ausgewählte Eigenschaften klassischer Partikelwerkstoffe vergleichend dargestellt.

Dynamics examination of selected properties for wood meterials varying their humidity

80%

Kowal M. , Dudarski G. , Czestochowski C.

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

2015

tom 90

A method of improving the surface of HDF

80%

Nicewicz D. , Monder S.

2013

tom 83

Analysis of the influence of larch fibers and particles on selected properties of fiber- and particleboards

80%

Pazio B. , Boruszewski P.

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

2020

tom 111

Modelling the mechanical stresses in adhesive joints of wood bondings

80%

Hering S. , Niemz P.

2012

tom 78

Influence of biofertilizers on protein, moisture and ash content in relation to swelling property, water absorption capacity, mineral elements, total phenolic level of Stevia (Stevia rebaudiana Bert.) plant grown under acidic soil zone of South India

70%

Das K. , Dang R.

International Letters of Natural Sciences

2014

tom 01

The field experiment on Stevia rebaudiana (SR), (Family: Asteraceae) was carried out in acid soil zone of Shimoga (Karnataka) in the year 2009 and 2010 to investigate the influence of biofertilizers on protein, moisture and ash content in the dried Stevia leaf and their correlation with swelling property, water absorption capacity and mineral element contents. Results revealed that second harvested sample (August) in first year (2009) was better for all aspects than other harvested samples and the results showed significant increase in protein content (16.22 %), swelling index (SI) (5.10 % w/w), water absorption capacity (WAC) (4.91 ml/g) with the treatment T8 where three bio fertilizers were applied togetherly with simultaneous moisture content varied from 6.61 to 7.18 %. The significant higher correlations were observed (significant at 1 %) between protein content with SI (r = 0.99), WAC (r = 0.99) and SI with WAC (r = 0.98) in 2009 harvested samples. The ash content was higher in third harvested sample (13.54 %) in the year 2009 with simultaneous increased amount of Fe (6.19 mg/kg), Mn (1.24 mg/kg), Cu (0.72 mg/kg) and Zn (1.22 mg/kg) contents due to the residual effect of bio fertilizers. Nitrogen (0.74 mg/kg), P (0.40 mg/kg) and K (0.68 mg/kg) contents were higher during second harvested samples and thereafter decreased. Total phenolic content was also recorded highest (64.52 mg/g) with three bio fertilizers applied togetherly during year 2009 compared to the year 2010 (50.12 mg/g). The results suggest that the application of bio-fertilizers either single or more numbers in a balanced way may be beneficial in improving protein, phenol and mineral contents of stevia plant.