Urban environments are subject to various pollutions where, among other things, acoustic pollution. Consequently, the study of acoustic pollution is an issue that is addressed in several aspects: economic, political and scientific / research.In this paper we propose a simulation model through the Matlab / Simulink software that shows the effect of ...

By Jozef Bushati, Virtyt Lesha, Darko Petković, Diana K Karuović

The regulations on air quality in Bosnia and Herzegovina are based on European Union regulations and they rely on defined limits for concentrations of certain pollutants. Although the law stipulates that the public must be informed on the quality of environmental parameters in a clear, simple and easily understandable manner, this is not the case i...

By Samir Lemeš

Nanotechnology relates to the production and management of the materials whose phases dimensions are (grains of structure and manufactured of layers) up to 100 nm. Nanotechnology and nanomaterials lead to major breakthroughs in many areas of scientific research with practical application in the industrial sector. The global mark...

By Mirsada Oruč, Sulejman Muhamedagić, Almaida Gigović-Gekić, Raza Sunulahpašić

Ratio of ultimate tensile strength and yield stress shows lower values in cold drawn wire than in hot rolled state. The results of research addressing the effect of variations in chemical composition of continuous casted billets on mechanical properties of cold-formed wire used in production of steel mesh are presented. In the c...

By Šaban Žuna, Aida Mahmutovic, Faik Uzunović, Sead Spužić

Many types of alloys are available as dental implants, but titanium and its alloys have been widely used due to their outstanding properties. In this research titanium alloys with different Zr contents were prepared by arc-melting. Phase identification was performed by XRD analysis. Microstructure was observed by light microscope aft...

By Ljerka Slokar, Anita Štrkalj, Zoran Glavaš

The calibration measurement capability - CMC is defined as the smallest uncertainty that a laboratory can achieve within its powers when carried out more or less daily calibration of nearly ideal measurement standards intended to define, generate, keep or renew units of that size, or one or more of its value, or when carried out more...

By Branka Muminović, Mirsada Oruč, Almaida Gigović-Gekić, Raza Sunulahpašić

Oil pump, apropos gear pump is used for lubrication in the automotive industry. In the process of the engine, and the oil pump, there is rotation of the shaft and without bearing sleeve there would be „spending”casing which is made of cast iron. The bearing sleeve is mounted in order to reduce wear and ensure the consiste...

By Belma Fakić, Adisa Burić, Edib Horoz, Amira Pašalić, Elvedin Ćosatović

ISO 9001 is an international standard that includes requirements for a quality management system in a business organization that it must meet in order to operate in compliance with internationally recognized standards. Benefits of implementing this standard in organizations are large and besides the ability to sell and produce t...

By Mirsada Oruč, Dragana Agić, Fuad Klisura, Neira Delić

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By Mohammad Safi

Refractory demand is driven by growth in emerging markets, new processing technologies and products in the customers industries mainly iron and steel, cement, lime, non-ferrous metals, glass, environmental, chemical and energy industry. The need for high-quality refractory solutions for particular applications is steadily rising. Ste...

By Christian Majcenovic