INFLUENCE OF THE RATIO OF CALCIUM OXIDE AND SILICA ON MINERALOGICAL AND PHASE CHANGES OF SINTER FROM LIMONITE ORE
Improving the quality of iron ore sintering and adding specific components has positive effects on blast furnace productivity. Optimizing basicity in the blast furnace charge is one way to improve all indices of production processes. Adjusting basicity aims to achieve the formation of new phase compounds that are favourable for the metallurgical an...
By Amel Zahirović, Amira Pašalić
EDUCATING FOR SUSTAINABLE PLASTIC MANAGEMENT IN A CIRCULAR AND CLIMATE-NEUTRAL ECONOMY
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
TOWARDS SUSTAINABLE WASTEWATER TREATMENT: COMPARATIVE STUDY OF HYBRID ELECTROCOAGULATION PROCESSES WITH ZEOLITE, ULTRASOUND, AND MAGNET
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 POTENTIAL OF WILD PLANTS
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
METHODOLOGICAL FRAMEWORK FOR THE DEVELOPMENT AND MULTICRITERION VALIDATION OF THE EFFECTIVE ERGONOMIC LOAD MODEL
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
FROM WASTE TO RESOURCE: HYDROXYAPATITE-RICH BONE ASH DERIVED FROM CATTLE BONES FOR SUSTAINABLE CERAMICS
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
CHARGE CARRIERS STATES IN A MODEL OF CuO SUPERCONDUCTIVE CERAMICS
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
RISK ASSESSMENT USING THE MATRIX METHOD FOR THE JOB "POWER LINE FITTER" IN A BUSINESS ENTITY
The assessment of workplace hazards involves recognizing the likelihood of occurrence and the severity of potential injuries or occupational diseases to employees. The risk assessment is performed by a team of experts from various scientific and professional fields to objectively evaluate the attributive and/or numerically expressed level of risk, ...
By Branko Radović, Bojana Zlatković, Anica Ranđelović
Georgi-Glashow SU(5) - basis for proton decay and neutrino mass problem from SM to GUT
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
ELECTROCHEMICAL INFLUENCE OF AMINO ACIDS ON THE CORROSION OF BIOALLOYS
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