The performance of solar systems is affected by the value of its tilt angle with respect to the horizontal surface, where the variation of tilt angle changes the amount of incident solar radiation. In this paper, hourly extraterrestrial solar irradiance, beam, diffuse and solar radiation on the tilted surface is modeled and calculated based o...

By Snežana Dragićević, Milan Marjanović, Vojislav Vujičić, Danijela Milošević

 In order to determine the competitiveness in the global market, for the purposes of this paper, secondary collected data of basic structural indicators of business of companies and entrepreneurs from the Republic of Srpska for the period from 2017 to 2019 were used. They were processed by descriptive statistics, and in order to determine the ...

By Mirjana Milovanović, Ružica Đervida, Branka Marković

 The process of digital business transformation is present today in both, developed and less developed economies. This process is primarily reflected in the application of modern information and communication (ICT) achievements, in performance of business processes in all branches of the economy, and public administration. This has enabled the...

By Mihajlo Travar, Saša Ristić, Igor Dugonjić

 Digital marketing is a branch of marketing that uses digital technologies based on the Internet and social networks. It began to develop in the 2000s and has been in constant expansion ever since. Digital marketing uses online strategies and these activities are constantly evolving, following the habits and needs of internet users. This type ...

By Jelena Ružić, Jelena Poznanovi, Branko Ćurlić, Đorđe Janevski

 A reliable, practice-oriented education is the most important basis for a successful start in a profession. Requirements more specific and more complex companies' labour market as regards its ability to students preparing for employment had an important role in building the Lisbon Strategy which states that each Member State should focus on t...

By Marius Calin Benea

 The real estate market is attractive for investment property gains obtained illegally with the aim of making it legitimate. Namely, the possibility of paying real estate with cash of dubious origin, the use of shell companies and trusts to create complicated ownership structures are just some of the methods of money laundering in the real est...

By Ajla Šurković

 Due to its many characteristics, the Internet deserves special attention in criminology, as well as criminal law and politics. Today, the Internet has become a global, current, interactive module and a civilizational apparatus that enables automated information processing. Due to its various features, the Internet provides unique opportunitie...

By Biljana Dimitrić

 In this study, the chemical activation hydrochar of the spent mushroom substrate was used to examine its potential for application as a sorbent in order to remove Pb2+ from aqueous solutions. The hydrocar was prepared in a hydrothermal reactor at a temperature of 200 °C for a reaction time of 1 h. It was then chemically modified with 20 %...

By Marija Kojić, Slavica Porobić, Đurica Katnić, Biljana Sikirić, Antonije Onjia, Milena Marinović-Cincović

 Rheological models represent a powerful tool for creating a comprehensive phenomenological view of the strain response, especially in structures exposed to long-term loading. Models are often arranged to fit experimental results, and this is achieved by including empirical parameters in their formation. Combining theoretically ideal bodies wi...

By Nataša Kopitović-Vuković, Nikola Baša, Radomir Zejak, Marija Jevrić

 Communication is an important activity that, even unconsciously, we carry out at every moment of our daily functioning. Although it is well known that good communication is the foundation of successful interpersonal relationships, that it is one of the key elements of success in various professional fields, we witness that very often people d...

By Danijela Jokanović