Sustainable supply of energy is possible only with an optimal combination of the characteristic benefits of each of the renewable energy sources. Unlike fossil fuels, biogas is a permanently renewable fuel, produced from biomass, which is a living storehouse of solar energy through photosynthesis. The use of biogas helps to improve the energy...

By Ljiljana Tanasić, Biljana Delić, Saša Spasojević, Bojan Damnjanović

 Šabac is a city that has had a central wastewater treatment plant (WWTP) since 2017, which is very important from the aspect of protecting the health of the population and protecting the environment. The advantage of the plant is that it facilitates the business of economic entities in the city. They do not have to have their own waste...

By Suzana Knežević

 Change management, as a constant task of managers and an integral part of managing the organization as a whole, is a general management process aimed at planning and implementing change so that the organization can function successfully and develop in conditions of continuous change in the environment. Accordingly, the change management proce...

By Biljana Bjelica, Ognjen Bakmaz, Dragan Vukasović

 The COVID-19 virus pandemic has begun to spread at an accelerated pace since its outbreak in December 2019, causing significant negative effects globally. The effects of the pandemic are still present today, resulting in negative consequences for food systems, with direct and indirect implications for the lives of all, especially the poorest ...

By Mina Kovljenić, Jovana Škorić

 Modern software solutions are intensively used to reduce the costs of day-to-day operations of companies and organizations from various domains of industry and services. It is easy to see the benefits of using ICT (information - communication technology) on the transaction automation in banks, insurance companies, as well as other organizatio...

By Vladimir Milićević, Nemanja Zdravković, Jovana Jović

 Modern educational trends are based on the information technology implementation in the teaching process, at all levels of education with the aim of engaging students as active participants. Numerous studies showed that this approach greatly increases the interest in monitoring the teaching content, and thus has a positive effect on enlarging...

By Ivan Petrović, Hristina Delibašić Marković, Violeta Petrović

 Today's development of technology enables the application of the principles of development of production processes defined by the goals of Industry 4.0, and the adaptation of existing automated production processes developed according to the principles of Industry 3.0. The question is whether in the case of micro-enterprises, i.e. craft shops...

By Igor Fürstner, László Gogolák, Árpád Pletikoszity

 This paper presents the Taguchi method and regression analysis for obtaining surface roughness in end milling of aluminum 6082-T6. Surface roughness was measured using a Mahr profilometer. The values of the experimental measurements were compared with the values obtained by regression analysis. The optimization was performed using the Taguchi...

By Jelena Stanojković, Dragan Lazarević, Ivica Čamagić, Živče Šarkočević

 In the circumstances caused by the epidemic of the Covid 19 virus, higher education institutions in Serbia, as in most countries, are facing numerous challenges and changes in their regular functioning. The paper presents the results of the research aimed at establishing the opinion of students about the conditions of distance learning as wel...

By Ljiljana Stankov, Mira Jovanović, Sanja Vuletić

 In recent years the information and communication technologies use in the education system has been increased. The development of technology demands the education system advancement and the improvement of students’ skills required for the new era, and implies particular challenges as well, especially for the teachers. Due to the Covid-1...

By Ivana Vučetić, Snežana Kirin, Nena A. Vasojević, Aleksandar Sedmak