Aerogels with large surface area, are very light related to the filling of pores with air (99%). Due to these features scientific studies on aerogels have increased at great speed. Aerogels are obtained using many materials as inorganic substances like silica as well as cellulose as biodegradable organic polymers. Bacterial cellulose is eco-f...

By Canan Karakus, Ayse Zehra Aroguz

 When designing machines that contain dynamic components, it is necessary to consider the tribological properties of the materials used for the functional parts of these components. The movement itself during the operation of the machines has a mechanical impact on these parts, which may result in the performance of the mechanism being affecte...

By Michaela Dilyova, Michal Hatala, Svetlana Radchenko, Frantisek Botko, Zuzana Mitalova

 Textile printing is an increasingly important area of the contemporary graphic industry, and screen printing represents a dominant technique in this field. The quality of the print depends on many parameters, such as the type of substrate material or the type of printing ink. The usual way to evaluate print quality consists of an objective as...

By Miloš Meseldžija, Nevena Vukić, Tamara Erceg, Natalija Budinski, Zsolt Lavicza, Isaac Lera, Dejan Kojić

 This paper discusses the selection of the most technically suitable method of transporting lime powder within the existing plant at the lime factory. From the production line, lime powder must be transported to the factory silo. Of the more technically feasible variants analysed, flying pneumatic transport was chosen as the most favourable va...

By Mirko Dobrnjac, Slobodan Rakulj

 The reinterpretation of classical art into digital art was taken as the basic framework within which I moving with using two concepts: classic and digital. Both terms represent different epochs, in which the notion of classical art implies a much longer period of time, making it more difficult to use without opting for a shorter period of tim...

By Marija Jevtić Dajić

Poistovjećivanje baznih teorijskih šema (kao slika realne stvarnosti) s ideološkim doktrinama (kao subjektivnih slika stvarnosti) uvijek je krilo brojne opasnosti, a često je dovodilo i do katastrofalnih posljedica, koje su ponekad bile vidljive golim okom. Postsocijalistička tranzicija je dobar primjer za navedenu tvrdnju. Predmet ov...

By Veselin Drašković, Mimo Drašković, Radislav Jovović, Milica Delibašić

Recently, there has been a significant progress regarding the biotechnological applications within the field of tissue engineering. One of such applications concerns the preparation of patterned polymeric scaffolds for patterned cell growth. Cell growth systems that make use of surface micro structuring and patterning have been gaining important tr...

By Ayse Zehra AROGUZ

 In this work were synthesized hybrid materials based on aliphatic polyurethanes and small amounts of titanium dioxide nanoparticles (0.5; 2.0 and 3.0 wt.%). From an environmental point of view, this synthesized hybrid materials are significant engineering materials because the products of their thermal degradation are significantly less toxic...

By Jelena Pavličević, Dejan Kojić, Milena Špírková, Mirjana Jovičić, Bojana Ikonić, Vladan Mićić, Jaroslava Budinski-Simendić

 After the turbine oil life cycle has been completed, it is necessary to replace it. The new generation of turbine oils is formulated with Group II and/or III base oils and a package of ashless additives. Such oils are often incompatible with conventional types of turbine oil. The new oil in the system also has the ability to dissolve residual...

By Mirko Petković, Valentina Petković, Tatjana Mirković, Tatjana Botić, Pero Dugić

 In this paper, the influence of thermoplastic segmented polyurethanes on the curing kinetics of epoxy based hybrid materials was assessed. Samples were prepared with diglycidil ester bisphenole A epoxy resin and different content (10, 15 and 20 wt. %) of thermoplastic segmented polyurethanes with different content of hard segments (20, 25 and...

By Vesna Teofilović, Mirjana Jovičić, Jelena Pavličević, Oskar Bera, Snežana Sinadinović-Fišer, Milena Špírková, Ayse Zehra Aroguz