Occupational safety is a very important factor in the process of creating a safe work environment.The benefits employers, employees and even the state as a whole can reap greatly depend on theway occupational safety is organized and implemented. This paper aims to make a general analysisof the condition of safety at work in Bosnia and Herzegovina, ...

By Miliša Todorović, Asmir Helvida, Snežana Živković

Aluminium alloy foams are a form of porous metal whose structure resembles the shape of natural materials such as coral, bone, sponge, etc. Due to their structure, these materials retain good mechanical properties of the base material while being significantly lighter than non-porous metal. Metal foams can be used as energy and vibration absorbe...

By Karla Grgić, Igor Ćulum, Branimir Lela, Jure Krolo, Sonja Jozić

Long-term exposure of superheater and steam intermediate superheater pipe materials to high temperatures in the operating conditions that prevail in thermal power plants leads to the appearance of the oxide layer.Oxide layer forms on the inner wall of the pipe, which acts as a heat insulator and reduces heat transfer through the pipe...

By Belma Fakić, Adisa Burić, Edib Horoz

The paper describes the determination of the mechanical properties of the spherical floors of pressure vessels, obtained by the welding process and shaped by the process of gradual local deformation in the cold state, i.e. by the process of Incremental sheet forming (ISF). Spherical cylindrical bottoms are an integral part of most cl...

By Mustafa Hadžalić, Raza Sunulahpašić, Zlatan Ištvanić

Leachate water from sanitary landfills represents one of the most complex global environmentalproblems. This paper examines the possibility of using aluminosilicate material, pyrophyllite, fromthe Parsovići deposit, as an adsorbent. It was researched the influence of two granulations ofpyrophyllite (0-53 μm and 0-100 μm) on the degree of adso...

By Jasmina Kustura, Belma Halilhodžić, Enita Kurtanović, Amra Čizmić, Kenan Kozlo, Adnan Teletović, Atif Hodzić, Muhamed Harbinja

In this paper, an analysis of the surface water and sediment of the Drina River was carried out.Samples were taken from different six locations along the course of the Drina River in Bosnia andHerzegovina. Selected heavy metals were determined in the sediment after acid digestion usingatomic absorption spectrometry - flame technique. The same metho...

By Aida Bilajac, Sabina Žero, Amar Karadža

Heavy metals can enter into rivers through industrial and consumer waste, activities of acidic rainto soils, etc. Long-term exposure can result in damaging: mental and nervous function, bloodcomposition, lungs, kidneys, liver, and other vital organs. Estimating a health risk based on thecontents of heavy metals found in river Bosna was the aim of t...

By Aida Šapčanin, Farzet Bikić

Metallic materials thanks to the excellent combination of data on material properties are obtained by standardized and agreed testing of samples made from semi-finished or finished products. Metallic materials can be tested by different testing techniques. One of them is metallographic testing, for which a light microscope is used as a basic device...

By Adisa Burić, Belma Fakić, Edib Horoz, Mirsada Oruč

Some specific aspects in positioning of the re-heating furnaces at a layout of different rolling mills, for a period of about last hundred years in rolling mills practice are presented in this paper. Practical solutions in the above mentioned (a.m.) field are presented for the different rolling mills. Some of the a.m. aspects are explained, confirm...

By Omer Beganović, Faik Uzunović

In this paper, we have introduced new contemporary materials for heat harvesting, based on thermoelectric effect (or Seebeck effect): rear earth mono-pnictides and graphene. Measure of effectiveness for transformation of heat to electricity is represented with zT factor, which measure heat harvesting potential. zT factor is related with heat and el...

By Siniša M. Vučenović, Jovan P. Šetrajčić, Steva K. Jaćimovski