The mineral waters of "Guber" Srebrenica are highly mineralized waters with a significant content of soluble iron. They belong to iron-sulfate waters, which are rich in arsenic and therefore also called iron-arsenic waters with low pH values. Some of the "Guber" waters of Srebrenica were used for therapeutic purposes in the past. Spectrophotometric...

By Dragica Lazić, Mirko Radić, Dragana Kešelј, Dragana Blagojević, Milenko Smiljanić, Nebojša Vasilјević

The purpose of the study is to present the practical results regarding the introduction of different types of mushrooms in the process of obtaining dairy products. Edible mushrooms have a multitude of health benefits. They contain a series of nutrients, ensure an efficient digestion and they are very good for increasing immunity. Also, according to...

By Oana-Maria Popa, Ovidiu Tița

The grinding technique evolved along with the development of mankind and today it has become a real industry. The need to diversify flour assortments has raised the performance of the milling industry and, more than that, the products obtained are of superior quality due to the new machines and techniques for conditioning and grinding. By condition...

By Elena-Iulia Lazăr (Bănuţă), Ovidiu Tiţa

Controlling the temperature of electronic components is a major interest for the electronics industry. Indeed, the lifetime of the components is directly dependent on the temperature levels reached in the electronic boards. Then, it is essential to predict the chip temperature evolution in order to maximize their lifespan. The electronic boards are...

By Jean-Gabriel Bauzin, Mehdi Belkacem Cherikh, Ali Hocine, Najib Laraqi, Minh-Nhat Nguyen

The concentration of copper (Cu) was determined in 110 samples of fruit (n = 31) and vegetable products (n = 79), collected during the period from January 2015 to December 2019. Fruit and vegetable products originate from 17 countries, including Serbia. Samples were analysed by inductively coupled plasma – optical emission spectrometry (ICP-O...

By Milena Lazović, Vladimir Tomović, Biljana Bajić, Isidora Kecojević, Danica Mrkajić, Ana Joksimović, Mila Tomović, Aleksandra Martinović, Dragan Vujadinović, Milenko Smiljanić, Vesna Đorđević

In this paper, conventional solid-liquid extraction and ultrasound-assisted extraction were utilized for (poly)phenols extraction from black elderberry flowers. The extraction lasted 30 to 120 min, with a solid-to-solvent ratio of 1:15 w/v and 1:30 w/v and solvents of 30% and 60% ethanol. Total (poly)phenols, flavonoids and anthocyanins contents we...

By Nebojša Vasiljević, Vladan Mićić, Milorad Tomić, Dragica Lazić, Ljubica Vasiljević, Duško Kostić

The experimental values of the friction factor (fp) at ambient and elevated temperatures as well as of the heat transfer coefficient (hp) were used to establish the analogy between momentum and heat transfer in gas-solid packed beds of monosized spherical glass particles, as jH=fp/22 or jHε=fp/50. Also, the Chilton-Colburn type of momentum-...

By Radojica Pešić, Nevenka Bošković-Vragolović, Zorana Arsenijević, Goran Tadić, Tatjana Kaluđerović Radoičić

Occupational safety and health (OSH) is an integral part of the organization of work, and includes measures and means necessary to achieve safe working conditions. In terms of the current Law on Occupational Safety and Health of the Republic of Srpska, among other things, the employer is responsible for drafting the Risk Assessment Act. This paper ...

By Dragana Pavlović, Dragica Lazić, Dragana Kešelј, Zoran Petrović, Dragana Dragojlović, Nebojša Vasilјević

This paper describes the concept of modern SCADA systems in general, as well as in BiH substations, and its connection to remote control centers, with a focus on redundancy, reliability and availability. Also, benefits from the usage of redundant protocols, RTU redundancy, usage of industrial equipment designed to work in substation environment and...

By Goran Savić, Goran Tadić

Intensive development of the global biodiesel industry has led to the generation of a large excess of crude glycerol, which is impure, and its disposal into the environment is unacceptable without previous purification. Since purification costs are high, the application of crude glycerol in biotechnological production of valueadded products represe...

By Ida Zahović, Jelena Dodić, Damjan Vučurović, Siniša Dodić, Bojana Bajić, Zorana Trivunović