The topic of this paper is testing corrosion stability of electrodeposited Zn-Mn coatings by using electrochemical impedance spectroscopy (SEI). The coatings were deposited galvanostatically on a 3x3 cm steel. 99.99% pure zinc was used as the anode. The electrodeposition was carried out from four chloride solutions. Solution 1 was without manganese...

By Marija Riđošić

In this paper the authors have developed and implemented a HACCP plan for the production process of fermented milk products, as exemplified in the yogurt sample. Hazard analysis included 241 hazard, of which 99 hazard can be eliminated and prevented their occurrence, by taking timely preventive measures. The HACCP system is necessary to apply for t...

By Danica Savanović, Brane Novaković, Danijela Močević

Biopolymers have the ability to absorb large amounts of water or biological fluids. They are swelling and forming hydrogels. Thanks to this, they have found a variety of applications, and among others they can be used to remove some metal ions from the water. Due to its unique structure and exceptional rheological characteristics, microbiological b...

By Ida Zahović, Zorana Rončević, Jelena Dodić, Jovana Grahovac, Siniša Dodić

Groundwater, as the mainresource of drinking water in the Republic of Srpska, is sometimes neglected regarding quality monitoring. It is especiallya characteristic of rural water supply sources as autonomous waterworks, individual intakes and wells. For the first time comprehensive analyses of the groundwater quality in rural areas of Srebrenica mu...

By Boban Jolović, Andrijana Stevanović, Maja Nogić

This study presented data about concentrations of some organic pollutants inAlbanian part of Black Drin (BD), White Drin (WD) and Fierza Reservoir (FR).Thirteen stations were analyzed in this study. Sampling of water was realized inMay 2017. Drin River presents important aquatic area in Albania. For all watersamples were analyzed organochlorine pes...

By Aurel Nuro, Elda Marku, Bledar Murtaj

Cereal crops as a basic food for humans, little is used as a grain, but with millingthey are processed in the milling products: flour, meal, flakes and bran.Determining the content of some ingredients, such as protein, ash, wet gluten,fat, etc. in food products is important because they are present in the rawmaterials and final products. The import...

By Marija Menkinoska, Vinko Stanoev, Valentina Pavlova, Tatijana Blazevska, Victorija Stamatovska, Natasa Gjorgovska

In the current study a ternary Cu-Ge-Sb system has been experimentally assessed. Chemical andphase compositions of the alloy samples from three vertical sections Cu-GeSb, Ge-CuSb and Sb-CuGe were studied using scanning electron microscopy (SEM) and energy dispersive spectroscopy(EDS) and confirmed by X-ray diffraction analysis (XRD). Hardness of th...

By Dejan Gurešić, Aleksandar Đorđević, Aleksandar Marković, Milica Tomović, Nadežda Talijan, Ivana Manasijević

A reliable operation of the equipment is primarily important for each installation. One of the measures of safe operation steam-boiler systems is purity pipes. Very acceptable method of determining the soiling pipe is a method of staining.In this paper is described the determination of soiling boiler tubes in power plant Ugljevik after a decade of ...

By Bosiljka Stojanović

Based on relations for the maximum work at the closed thermodynamic system, the paper presents implementation of a general model for determining the minimum storage volume for compressed air. Due to the mechanical and thermodynamic imbalance of observed model, there are the conditions for obtaining the maximum work. Derived relations, which represe...

By Mitar Perušić, Branko Pejović, Radislav Filipović, Milenko Smiljanić, Mirko Radić

Our recent study on consolidation of marble samples with the purpose of culture heritageprotection occurred by periodical calcium oxalate precipitation on top of quasi parallelepipedicsamples. The overall process consisting of three stages of treatment, starting with 5 % calciumacetate solution for 60 minutes at 20°C, a draining step at 70°...

By Rihana Terzu, Edlira Baraj, Shun Yu, Christiane Förester, Holger Kropf, Kledi Xhaxhiu, Marsilda Come