., Dawczyński S., Malczyk A., Adamczyk K.: Testing timber beams after 130 years of utilization, Wiadomości Konserwatorskie - Journal of Heritage Conservation nr 32 (2012), pp. 100-104.
13. Nowak T., Brol J., Jaseńko J.: Estimation of the strength parameters of wood in building structures - preliminary studies, Annals of WULS - SGGW Forestry and Wood Technology No. 83 (2013), pp. 303-306.
14. PN-EN 408:2004 Konstrukcje drewniane. Drewno konstrukcyjne i klejone warstwowo. Oznaczanie niektórych właściwości fizycznych i mechanicznych
Zahoor Ahmad, M.A. Choudhary, M.A. Mirza and J.A. Mirza
considerably thicker, π−π* transition was also observed. Similarly, in this study, the dispersion behavior was found significantly increased when NPs were coated by PCz, however, the increase was connected with the increase in polymer thickness. It was more pronounced in case of FeCl 3 . Therefore, it was concluded that PCz which possess good optical and dispersion behavior could be tailored around Ag NPs in a composite form and a material ensuring conservation of existing properties along with combining of complementary characteristics. The study could be helpful to explore
/40) calcined at 750 °C for 2 h. As can be seen, the presence of Ba, Sr, Ti and O was detected in the spectra. The results confirm that pure BST is a dominant phase. Furthermore, the composition ratio (Ba/Sr) of the as prepared powder was confirmed using the microarea EDS analysis. Stoichio-metric ratios of the main metallic components of the BST60/40 ceramics are as follows (in mass %): Ba – 38.64 %, Sr – 16.43 %, Ti – 22.44 %. The results of the measurement, given in Fig. 6 , are in acceptable agreement with the stoichiometric ratios mentioned above. Thus, the conservation