Plastic has become indispensable since its introduction in the late 1800s, valued for its flexibility, durability, and affordability. Global plastic production has grown exponentially, reaching 400.3 million metric tons in 2022, despite a temporary decline in early 2020 due to the Covid-19 pandemic. However, only 9% of all plastics ever produced ha...

By Katrin Školnik-Krabe, Anja Bubik, Špela Dermol, Santiago Ferrándiz, Dana Perniu, Elena Cristina Rada, Anca Draghici

This study evaluates three hybrid electrocoagulation (EC) processes with aluminium electrodes:EC-zeolite process (EC+Z), EC-zeolite-ultrasound-assisted process (EC+Z+US), and EC-zeolitemagnet-assisted process (EC+Z+MAG) for compost wastewater treatment with a large content oforganic matter. The focus was on evaluating the effects of these processes...

By Nediljka Vukojević Medvidović, Ladislav Vrsalović, Sandra Svilović, Senka Gudić, Ivona Čule

Phytoremediation with wild plant species could be an environmentally friendly and economicalsolution. Selected wild plants like mint, oregano, chamomile, nettle, and St. John’s wort, from ruralareas in Bosnia and Herzegovina, were collected, lyophilized, and acid-digested for heavy metalsanalysis. Nickel (Ni), copper (Cu), chromium (Cr), cadm...

By Šaćira Mandal, Aida Šapčanin

This paper aims to present a methodological framework for the development and validation of theEffective Ergonomic Load Coefficient (KEEO) model, an approach that seeks to quantify totalworkload by integrating physical, mental, organizational, and technical and technological factors.Current methods, such as RULA, REBA, OCRA, SWAT, and JCQ, address ...

By Muhamed Herić, Edin Cerjaković, Alan Topčić, Slađan Lovrić

The increasing need for sustainable resource utilization has driven the exploration of waste-derived materials for industrial applications. This study investigates the valorization of cattle bone waste into high-purity hydroxyapatite-rich bone ash and its application in ceramics. The beneficiation process involved boiling, drying, controlled calcin...

By Temitope Ologunwa, Rasheed Kolade, Ayodeji Oke, Oluyemi Ologunwa

This study presents the development of an eco-efficient laboratory-scale production route for longsteel products, focusing on sustainable casting and hot deformation processes. Conventionalcasting using 80x80 mm molds and gravity filling generated significant shrinkage defects, leadingto scrap generation, repeated melting, and reduced material effi...

By Emre Alan

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 model of high-temperature superconductors in which the observed symmetry breaking orthogonal to the CuO plane is treated as a perturbation. Single...

By Jovan Šetrajčić, Siniša 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. We use metallic beads arranged in different one-, two- and three-dimensional ensembles through which different constant currents are inject...

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

In this article we present the original Georgi-Glashow  model with gauge and fermion sector derivation in order to show grand unified theory (GUT) through this model, but also to correlate  and Standard Model (SM). One of the correlations reside in neutrino mass sector where both and Standard Model (SM) see neutrinos as massless particles...

By Emina Džaferović-Mašić

Shape memory alloys are of great commercial importance from biomedical applications to smart materials. The electrochemical behavior of Cu-Al-Zn alloy in phosphate buffer without and in the presence of amino acid was investigated. Electrochemical researches were performed in a traditional three-electrode system by means of the Tafel extrapolation m...

By Safija Herenda, Merima Begović, Edhem Hasković, Vanja Asanović