The translational symmetry of the distribution of atoms (ions) of the charge carriers (electrons or holes)system is broken by sputtering (doping) due to the existence of two boundary surfaces. This is a modelof high-temperature superconductors in which the observed symmetry breaking orthogonal to the CuOplane is treated as a perturbation. Single-pa...

By Jovan P. Šetrajčić, Siniša M. Vučenović

Metallic materials in granular packings show different electrical properties from their bulk counterparts.In this paper, we investigate the temporal evolution of the electrical conductivity of granular metals. Weuse metallic beads arranged in different one-, two- and three-dimensional ensembles through whichdifferent constant currents are injected....

By Maja Đekić, Ajla Karić, Amra Salčinović-Fetić, Melisa Baždar, Belma Husković, Dijana Dujak, Diana Ćubela

This study investigated the mechanical properties of a series of Fe-Cr-Mn (Mo)-N alloys. The chromiumcontent ranged from 16 to 18 mass%. The test alloys were produced by adding nitrided ferroalloys duringmelting in an induction furnace. Test specimens of each alloy were prepared for mechanical testing andmicrostructural observation. Tensile strengt...

By Jasmin Halilović, Edis Nasić, Derviš Mujagić

Steel 17-7PH is austenitic-martensitic steel with high strength, hardness, and resistance to creep, andcorrosion. It is designed for aerospace components, but can also be used for other applications that requirehigh strength and corrosion resistance, as well as leaf springs for operation at temperatures up to 316 °C. Itcan be used in a solution...

By Belma Fakić, Derviš Mujagić, Omer Beganović

Modern steel production cannot be imagined without manganese, because almost all steels containmanganese.In this paper, we present the impact of manganese on the tensile strength values of high-carbon steel.This paper presents an improvement in the quality of wire rolling with control of manganese content insteel and the value of C-equivalent, in i...

By Aida Imamović, Omer Kablar, Mirsada Oruč, Vedina Purić-Selimović, Lamija Sušić

The electrocoagulation with zeolite addition was used to treat compost leachate. The effects of different current densities and zeolite particle sizes on electrode dissolution, electrode surface condition, and removal efficiency were investigated. The surface of the electrodes was analysed by optical microscope, while the consumption of the alumini...

By Nediljjka Vukojević Medvidović, Ladisav Vrsalović, Sandra Svilović, Mirjana Cestarić

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

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

We have introduced a theory for the calculation of thermodynamic characteristics for some characteristic nanostructures (ultrathin films and superlattices), using the adapted method of two-time temperature Green's functions. In this paper, he has determined the coefficient of thermal conductivity using the definition of free energy and then compare...

By Siniša Vučenović, Jovan Šetrajčić

Three new neutral complexes of copper(II) containing chalcone ligands derived from 2'-hydoxyacetophenone and 4-substituted benzaldehydes were synthesized. Complexes were prepared by solution synthesis and characterized by spectroscopy. The catalytic activity of complexes was examined in the reaction of 3,5-di-tertbutylcatehcol (DTBC) oxidation. The...

By Selma Hadžalić, Irnesa Osmanković, Adnan Zahirović

More recently modified stainless steels have been used to produce various structural elements that work in complex operating conditions. Stainless steel X8CrNiS18-9 (standard EN 10088-3) is the most commonly used from the group of austenitic stainless steel in terms of machinability. This steel has high mechanical and working properties thanks to a...

By Derviš Mujagić, Omer Beganović, Belma Fakić