Technical Faculty in Bor
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Recent Submissions
Collective intelligence and project management: bibliometric analysis
(Serbian Project Management Association – IPMA Serbia, 2025) Radić, Aleksandra; Milijić, Nenad
This paper examines the role of collective intelligence and project management through a bibliometric analysis of 289 scientific publications from 2005 to 2025, using Scopus as the database for source extraction. VOSviewer was used to examine trends in publication and citation volumes, co-authorship networks, and the most influential papers in this field. By mapping the relationships between authors, countries, and key references, the study provides valuable insights into the collaborative dynamics and research gaps. In the last two decades, there has been a shift in publications, with the majority being conference papers, followed by journal articles and book chapters. At the same time, the citation trend has shown a consistent increase.The main implications highlight the necessity for more specialized journals on collective intelligence within project management. Additionally, there is a need to promote collaboration between developing and developed countries during the research.
The Role of ERP Systems in Supporting the Transition to a Circular Economy
(COSMOS S.A., 2025) Radić, Aleksandra ; Arsić, Sanela; Plotnic, Olesea; Milošević, Isidora
The introduction of Enterprise Resource Planning (ERP) systems is becoming crucial in facilitating the transition to a circular economy. These systems enable the integration and optimization of business processes, leading to more efficient resource management. The circular economy focuses on minimizing waste and extending the life cycle of products, which requires transparency, traceability, and real-time data, capabilities that ERP systems provide. This paper aims to outline the key roles that ERP systems play in supporting the transition to a circular economy, emphasizing how integrated information systems contribute to sustainability and improve operational efficiency. By analyzing the main functionalities of ERP systems, this paper explores how these systems facilitate better planning, control, and reporting in alignment with the principles of the circularity.
Examination of the Digital Economy and Society Index for Western Balkan Countries using the Entropy-based TOPSIS Method
(Complex System Research Centre, Niš, Serbia Mathematical Institute of the Serbian Academy of Sciences and Arts, 2025) Radić, Aleksandra ; Arsić, Sanela
This paper examines the Digital Economy and Society Index (DESI) of Western Balkan countries using the entropy-based TOPSIS method. The analysis reveals significant differences in digital performance, with Montenegro ranked highest and North Macedonia lowest. The findings demonstrate the applicability of the entropy-based TOPSIS method for assessing multidimensional index such as DESI, offering policymakers valuable insights into priority areas for digital development. The study provides a foundation for future research and strategies to enhance regional digital transformation.
Review of material and process parameters in the production of drawn SnPb wire
(Fakultet Tehničkih nauka, Kosovska Mitrovica, 2025) Kovačević, Avram; Stamenković, Uroš; Nedeljković, Milan
The aim of this study is to review pre-processing parameters prior to forming SnPb wire through the cold drawing process. The research focuses on different factors such as chemical composition and homogenity, oxide content, and the initial mechanical properties of starting materials prior to plastic deformation. Special attention is given to the selection of appropriate SnPb alloy ratios — primarily Sn60Pb40 and Sn63Pb37, due to their good mechanical, electrical and thermal properties. Further analysis of pre-processing steps such as surface cleaning, tool settings and mechanical processing regime is conducted to determine their effect on drawability, grain boundary behavior, and resistance to fracture during multi-pass drawing. All relevant parameters were analyzed in the context of minimizing processing defects such as wire breakage, ovality, and surface roughness. It is concluded that chemical homogenity and surface oxides play an important role in achieving a balance between ductility and strength during the processing. This is particularly important, given that the drawing process induces a significant amount of internal stresses. The chemical composition, especially the Sn-Pb ratio, has a major effect on the recrystallization temperature, which is a key factor defining the efficiency of the further plastic deformation. The applied thermomechanical treatment regime plays a crucial role in controlling microstructural evolution and stable drawing performance under industrial-scale production. This study contributes to improving production performance, ensuring high quality tolerances of the final products.
Influence of organic compound structure on brass corrosion inhibition efficiency
(University of Belgrade, Technical Faculty in Bor, 2025) Cvetković, Aleksandar; Petrović Mihajlović, Marija; Tasić, Zaklina; Radovanović, Milan B.; Simonović, Ana; Nedelkovski, Vladan
In this study the influence of organic compounds with different structures on the inhibition of brass corrosion in sodium chloride solutions of 0.9%, 2% and 3.5% is investigated. The experimental work includes the evaluation of the inhibition efficiency of 2-mercapto-1-methylimidazole (MMI), 2-amino-5-ethyl-1,3,4-thiadiazole (AETDA) and N-acetyl-L-leucine at various concentrations using electrochemical methods, including open circuit potential (OCP), cyclic voltammetry (CV), and potentiodynamic measurements (PD). The results show that all tested inhibitors reduce the corrosion currents and potentials, with the highest efficiency observed in solutions with the lowest sodium chloride concentration of 0.9%, where AETDA exhibited the highest inhibition efficiency of 92.93%, while MMI showed an efficiency of 88.78% at the same inhibitor concentration of 10-2 M. Compared to AETDA and MMI, N-acetyl-L-leucine at a concentration of 10-3 M showed
the lowest inhibition efficiency of 44.21%, while AETDA and MMI achieved inhibition efficiencies of 76.12% and 72.16%, respectively. Adsorption isotherms were used to evaluate the binding mechanisms of inhibitors on the brass surface, and physisorption was found to be the most likely mechanism for all tested compounds. These findings provide insight into the potential application of the investigated inhibitors to prevent brass corrosion under corrosive conditions.