Journal of Engineering and Management https://jem.fpm.ues.rs.ba/index.php/journal <p><img src="https://jem.fpm.ues.rs.ba/public/site/images/budimirka/logo-faks-2.png" alt="" width="1349" height="374" /></p> <p>The <em>Journal of Engineering &amp; Management</em> is published by the <a href="http://www.fpm.ues.rs.ba/">Faculty of Production and Management Trebinje,</a> <a href="https://www.ues.rs.ba/">University of East Sarajevo</a>. This Journal is committed to contemporary developments in engineering, industrial management and power engineering. It is conceived of as an open-access interdisciplinary journal, comprising research and expert papers in multiple fields, and will be published semi-annually.</p> <p>The mail goal of the Journal of Engineering and Management is to promote the Academic, Professional Community and research development visibility, spreading original and relevant articles in the wide range of subfields in industrial management and engineering. Papers reporting original theoretical and/or practice oriented research and articles of interdisciplinary nature are all welcome.</p> University of East Sarajevo, Faculty of Production and Management Trebinje en-US Journal of Engineering and Management Proces održavanja tehničkih sistema https://jem.fpm.ues.rs.ba/index.php/journal/article/view/64 <p><em>U preduzećima, na glavne faktore proizvodnje, u velikoj mjeri utiče održavanje, koje ima vrlo pozitivan uticaj na postizanje dobrih poslovnih rezultata, ukoliko se sprovodi na adekvatan način. Takođe, adekvatno sprovedeno održavanje nesporno utiče i na niže troškove proizvodnje i cjelokupnog poslovanja. &nbsp;Tehničko održavanje sistema (mašina i postrojenja) obuhvata postupke koji imaju za cilj da spriječe pojavu stanja u otkazu ili zastoju, kao i da&nbsp; vrate&nbsp; sistem&nbsp; iz stanja u otkazu ponovo u stanje u radu u što kraćem vremenskom periodu i sa što nižim&nbsp; troškovima, a da se pri tome uzmu u obzir uslovi okoline i organizacije rada.</em> <em>U ovom radu je dat primjer opšte procedure održavanja vozila za teretni i putnički transport, u kojoj je definisan redoslijed i način na koji se izvode aktivnosti u procesu&nbsp; preventivnog i korektivnog održavanja vozila koji omogućava odvijanje transportnih procesa u smislu tehničke ispravnosti vozila.</em> <em>Glavni cilj cjelokupnog procesa održavanja voznih parkova jeste da se vozila vrate u stanje „u radu“ nakon što su dospjela u stanje „u otkazu“, kako bi bila dostupna i svrsishodna za obavljanje transportnog procesa.</em></p> Milica Radovanović Željko Đurić Copyright (c) 2024 Journal of Engineering and Management https://creativecommons.org/licenses/by-nc-nd/4.0 2024-04-14 2024-04-14 2 1 Modelling and optimisation of power consumption and productivity in milling of thin-walled parts https://jem.fpm.ues.rs.ba/index.php/journal/article/view/60 <p><em>A high percentage of mechanical parts in the metalworking industry (automotive, medical, energetic sector, and etc.), refers to thin-walled structures with optimized shapes and dimension, which produce on high or semi batch production principle. Production processes management, in mentioned industry and production systems, requires the development of appropriate information technologies based automatic systems. Planning and control systems are based on computer-aided technologies. Basis of this system are mathematical-logical models commonly, which is quantitatively link between input process parameters and process performance indicators (output parameters). In this study, modelling of total power consumption and process productivity was performed. &nbsp;Total power consumption and the process productivity were modelled, as very important output indicators in efficient and sustainable production. The modelling is based on the experimental analysis of the machining process during machining of thin-walled parts made of C45E (AISI 1045) carbon steel. Modelling was performed using the least squares method, with the use of ANOVA statistical analysis for the purpose of defining the input factors significance. Depth of cut, milling width and feed per tooth were used as input cutting parameters. Input cutting parameters combined experimental analysed according to Taguchi experimental plan. Based on developed adequate and sufficiently accurate mathematical models, optimization procedure was performed. The goal of optimisation was to minimize the power consumption and maximise productivity.</em></p> Branislav Sredanović Sasa Tesic Vladimir Simic Djordje Cica Stevo Borojevic Copyright (c) 2024 Journal of Engineering and Management https://creativecommons.org/licenses/by-nc-nd/4.0 2024-04-14 2024-04-14 2 1 Procjena bilansa emisije CO2 iz termoelektrana sa količinom apsorbovanog CO2 šumama u Republici Srpskoj https://jem.fpm.ues.rs.ba/index.php/journal/article/view/62 <p><em>količinom CO<sub>2</sub> u okviru procesa fotosinteze kroz postojeće drvne zalihe u šumama i ostvareni drvni priraštaj šuma na teritoriji Republike Srpske. Pošto CO<sub>2 </sub>po definciji ima negativan uticaj na klimu na planeti Zemlji i obzirom na uzrokovanje efekta staklene, bašte dolazi do dodatnog zagrijavanje naše planete. Postoje generalno dva postupka procjena i određivanja emsija CO<sub>2</sub> iz termoelektrana: na osnovu prethodno definsianih matematičkih modela i izmjerene potrošnje uglja. Mjerne metode koje se koriste za uzimanje uzoraka su: neekstraktivne (mjerne sonde i uređaji se nalaze unutra ili u dimnom kanalu) i ekstraktivne (uzorak se uzima iz dimnog kanala i vodi u uređaj gdje se analizira). Senzori na osnovu koji se određuje sastav, dijele se na: elektrolitski, optički, kalorimetrički i fotometrički. Izračunate i procjenjene emisije sa postojećih termoelektrana u Republici Srpskoj komprairane su sa ekvivalentom skladištenja CO<sub>2 </sub>u šumskoj biomasi sa kojom raspolaže Republika Srpska iz čega su izvedeni vrlo zanimljivi dijelovi zaključaka po pitanju CO<sub>2</sub> nutralnosti energetskog sektora koji se odnosi na termoelektrane Republike Srpske.</em></p> Srdjan Vaskovic Ljubiša Tanić Stefan Adžić Borislav Jović Gojko Krunić Copyright (c) 2024 Journal of Engineering and Management https://creativecommons.org/licenses/by-nc-nd/4.0 2024-04-14 2024-04-14 2 1 PRIMJENA I POTENCIJAL BIOMASE U REPUBLICI SRPSKOJ I BOSNI I HERCEGOVINI https://jem.fpm.ues.rs.ba/index.php/journal/article/view/63 <p><em>Bosna i Hercegovina raspolaže sa značajnim energetskim potencijalom, pri čemu se najviši ističe hidropotencijal, a u posljednje vrijeme nešto veća pažnja se posvećuje i energiji vjetra. Pored obnovljivih izvora energije, u značajnoj mjeri su zastupljeni ali i iskorišćeni neobnovljivi odnosno konvencionalni izvori energije. Uslijed štetnog uticaja na životnu sredinu i drugih negativnih faktora koji se javljaju usljed sagorijevanja fosilnih goriva, nameće se potreba za što većom upotrebom obnovljivih odnosno nekonvencionalnih izvora energije. Kada su u pitanju fosilna goriva, veliki problem predstavlja i sve veća iskorišćenost fosilnih goriva koja se za razliku od nekonvencaionalnih izvora energije, ne obnavljaju. Pored navedenog, bitno je još i napomenuti da uvođenjem novih tehnika i tehnologija, raste i potražnja za električnom, ali i toplotnom energijom. Jedan od obnovljivih izvora energije koji nije dovoljno iskorišćen i kome se ne posvećuje dovoljna pažnja u Bosni i Hercegovini je biomasa, te će u ovom radu biti detaljnije prikazana primjena i potencijal biomase u Republici Srpskoj i Bosni i Hercegovini.</em></p> Jovica Vlatković Oksana Kašiković Aleksandra Koprivica Copyright (c) 2024 Journal of Engineering and Management https://creativecommons.org/licenses/by-nc-nd/4.0 2024-04-14 2024-04-14 2 1 HYDROPOWER POTENTIAL OF RIVER SUTJESKA https://jem.fpm.ues.rs.ba/index.php/journal/article/view/72 <p><em>Energy is a very important factor of development. The need for electricity is constantly increasing. A large part of the energy produced in the world comes from non-renewable energy sources, mainly fossil fuels, which are considered to be the main reason for global warming. A well-planned and efficient use of all available energy sources, especially renewable sources, is necessary to meet the requirements of energy demand. Hydropower represents one of the most important renewable energy sources. A significant part of the hydropower potential has already been used by the construction and operation of large hydropower plants, while smaller watercourses are still largely unused. Small hydropower plants have an insignificant negative impact on the environment, unlike conventional energy plants. The paper presents the hydro potential of the Sutjeska river basin, i.e. the possibilities of building small hydropower plants are listed. The river Sutjeska largely passes through the national park of the same name. On the river Sutjeska and its tributaries Hrčavka, Jabušnica, Klobučarica and Sušica (Suha), the construction of 13 small hydropower plants with different technical solutions is planned. Based on that, it can be concluded that this basin has a significant technically usable hydro potential that is currently unused.</em></p> Milica Kašiković Uroš Karadžić Copyright (c) 2024 Journal of Engineering and Management https://creativecommons.org/licenses/by-nc-nd/4.0 2024-04-14 2024-04-14 2 1 SYNERGY BETWEEN MARKETING STRATEGIES 4.0 AND KNOWLEDGE MANAGEMENT PROCESSES IN SMALL AND MEDIUM ENTERPRISES https://jem.fpm.ues.rs.ba/index.php/journal/article/view/76 <p class="Abstract" style="text-indent: 0in;"><em><span lang="sr-Cyrl">In an era marked by digital transformation, SMEs face the imperative of embracing Marketing Strategies 4.0 to remain competitive and sustainable. This paper, grounded in an extensive literature review, explores the profound impact of Marketing Strategies 4.0 on SMEs. Challenges encountered by SMEs in adopting Marketing Strategies 4.0 are discussed, including financial limitations and resistance to technological change. This scientific paper investigates the convergence of Marketing Strategies 4.0 and Knowledge Management Processes within the context of Small and Medium Enterprises (SMEs). In today's digital landscape, SMEs face unique challenges in harnessing the power of data-driven marketing while effectively managing their organizational knowledge. Marketing Strategies 4.0 are explored, shedding light on how SMEs can position themselves for continued success. In conclusion, this paper underscores the pivotal role of Marketing Strategies 4.0 in the SME landscape and offers guidance for SMEs to navigate the digital marketing terrain, drawing from the wealth of knowledge within the literature. As SMEs play a pivotal role in economic development, understanding the symbiotic relationship between modern marketing strategies and knowledge management is essential for sustainable growth in the 21st century. </span></em></p> Stefan Ugrinov Milan Nikolić M. Kavalić Edit Terek Stojanović Verica Gluvakov Copyright (c) 2024 Journal of Engineering and Management https://creativecommons.org/licenses/by-nc-nd/4.0 2024-04-14 2024-04-14 2 1 A Benchmarking kao dio strategije unapređenja poslovanja – empirijsko istraživanje poznavanja i primjene od strane menadžera u MSP sektoru u Crnoj Gori https://jem.fpm.ues.rs.ba/index.php/journal/article/view/66 <p>Jačanje konkurentske prednosti, u uslovima koje karakterišu izuzetno kompleksni uticaji iz okruženja i kontinuirane promjene, nameću potrebu za preciznijim mjerenjem poslovnih performansi kompanija i njihovim unapređenjem. Relevantna znanja neophodna menadžerima za donošenje optimalnih poslovnih odluka, jednim dijelom mogu se dobiti primjenom benchmarkinga. Otuda se predmet istraživanja u ovom radu odnosi na analizu stepena poznavanja i primjene benchmarkinga u sektoru malih i srednjih preduzeća (MSP) u Crnoj Gori, koja čine najveći procenat crnogorske privrede. Empirijsko istraživanje je sprovedeno na uzorku od 42 preduzeća iz MSP sektora. Rezultati istraživanja pokazuju da menadžeri u Crnoj Gori benchmarking smatraju važnim za unapređenja poslovanja. Međutim, nivo njegove primjene nije na zadovoljavajućem nivou usled nedostatka znanja koje je potrebno za njegovu adekvatnu implementaciju. Menadžeri bolje poznaju i shodno tome više primjenjuju interni i konkurentski benchmarking, u poređenju sa ostalim vrstama, dok benchlearning ima najmanji stepen primjene. Najveći broj ispitanika smatra da su glavne prednosti korišćenja benchmarking koncepta postizanje konkurentske prednosti, otvaranje novih poslovnih mogućnosti i usmjeravanje na postizanje maksimuma u poslovanju. Dobijeni rezultati mogu poslužiti menadžerima u cilju daljeg unapređenja poslovanja i jačanja konkurentske prednosti.</p> Boban Melović Senka Šekularac Ivošević Copyright (c) 2024 Journal of Engineering and Management https://creativecommons.org/licenses/by-nc-nd/4.0 2024-04-14 2024-04-14 2 1 TRANSITION TO INDUSTRY 5.0 WITH AI AND DIGILITALIZATION OF PRODUCTION SYSTEMS https://jem.fpm.ues.rs.ba/index.php/journal/article/view/77 <p>This paper presents a comprehensive framework for integrating advanced artificial intelligence (AI) and digitalization into manufacturing processes, and contributing to the transition towards Industry 5.0. By focusing on a human-centric approach, advanced AI integration, sustainability, and flexibility, the study outlines strategies for enhancing production systems and competitiveness in enterprises. The main goal was to develop a model that outlines the transition process towards Industry 5.0. Additionally, suggestions and guidelines for improving enterprise production systems and competitiveness are discussed. The findings suggest that embracing digital transformation, collaborative robotics, and continuous innovation are vital for achieving operational efficiency, environmental sustainability, and personalized customer experiences. The paper highlights the importance of ethical practices and continuous learning in fostering a resilient and innovative industrial ecosystem.</p> Mihalj Bakator Milan Nikolić Dragan Ćoćkalo Sanja Stanisavljev Copyright (c) 2024 Journal of Engineering and Management https://creativecommons.org/licenses/by-nc-nd/4.0 2024-04-14 2024-04-14 2 1