Autor: Szwarc, B. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Synthesis and physicochemical characterization of silicafillers modified with octakis({3-methacryloxypropyl}dimethylsiloxy) octasilsesquioxane
Autorzy:: Szwarc-Rzepka, K.
Gogola, N.
Siwińska-Stefańska, K.
Marciniec, B.
Jesionowski, T.
Powiązania:: https://bibliotekanauki.pl/articles/778960.pdf
Data publikacji:: 2013
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: octasilsesquioxane
silica
functionalization
hybrid nanofillers
Opis:: Hybrid nanofillers of silica grafted with octakis({3-methacryloxypropyl}dimethylsiloxy) octasilsesquioxane were obtained by the method based on solvent evaporation with the use of both hydrated or emulsion spherical silica. Octakis({3-methacryloxypropyl}dimethylsiloxy) octasilsesquioxane was applied as a modifying agent and it was synthesized by employing the hydrosilylation reaction. The effectiveness of modification of the hybrid nanofillers obtained was verified using Fourier transform infrared spectroscopy and nuclear magnetic resonance (29Si and 13C CP MAS NMR). The products obtained were characterized by determination of their physicochemical properties and porous structure, including specific surface area, pore diameter and pore volume. Dispersion degree and particle size of the nanofillers was characterized by NIBS (Non-Invasive Back-scatter) method and laser diffraction technique, while their morphology by transmission electron microscopy.
Źródło:: Polish Journal of Chemical Technology; 2013, 15, 4; 15-23
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Problems of Railway Noise—A Case Study
Autorzy:: Szwarc, M.
Kostek, B.
Kotus, J.
Szczodrak, M.
Czyżewski, A.
Powiązania:: https://bibliotekanauki.pl/articles/91183.pdf
Data publikacji:: 2011
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: rail traffic noise
national government legislation and regulations
European Community requirements
noise-generating devices
rolling contact noise sources
rail vehicle noise
Opis:: Under Directive 2002/49/EC relating to the assessment and management of environmental noise, all European countries are obliged to model their environmental noise levels in heavily populated areas. Some countries have their own national method, to predict noise but most have not created one yet. The recommendation for countries that do not have their own model is to use an interim method. The Dutch SRM II scheme is suggested for railways. In addition to the Dutch model, this paper describes and discusses 3 other national methods. Moreover, discrepancies between the HARMONOISE and IMAGINE projects are analysed. The results of rail traffic noise measurements are compared with national methods.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2011, 17, 3; 309-325
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki