One of the most important influencing factors on the economy of mines with surface and underground exploitation is the correct choice of haulage technology of ore and waste.The paper analyzes the haulage of ore and waste in the Lead and Zinc Mine “Sase” Srebrenica and determines the optimal haulage length on the four excavation blocks for the appli...

By Duško Torbica, Vladimir Malbašić, Dražana Tošić, Jovan Popović

The article considers the issues of increasing energy efficiency of 6-10 kV controlled capacitor plants of power supply systems of energy-intensive facilities due to more accurate compensation of reactive power. Analysis of the most common circuits for connecting batteries of static capacitors using semiconductor and electromechanical switches was ...

By Vladimir Babenko, Alexandr Danilov, Dmitrii Vasenin, Valery Krysanov

Magmatic rocks of post-Late Eocene magmatic formation are widespread in the Sava segment of SavaVardar suture zone and adjoin areas. The rocks formed as a response to transpressional-transtensional tectonic activity preceded by the Cretaceous-Eocene compression of the Internal Dinarides and Tisia Unit as fragments of Eurasian continental lithospher...

By Zehra Salkić, Boško Lugović, Elvir Babajić

This paper presents research results of the Bugojno coal basin, which contains very significant, but still insufficiently explored lignite reserves. Based on the determined borders of surface distribution and the research results in the northwestern part of the Bugojno coal basin, proved are four coal layers with reserves of over one billion tons o...

By Dževad Forčaković, Rejhana Dervišević

The task was set, due to the capabilities of modern software systems, to assess the effect of the increase in inelastic deformations under prolonged load action on the loss of stability of thin-walled dome coverings. The study of the dependences of the forms of the loss of stability of dome covering from creep concrete that will help further with o...

By Sergey Gridnev, Ekaterina Prokshits, Olga Sotnikova, Iana Zolotukhina

Currently, the development of the country's economy is characterized by the trend of globalization, which is constantly developing, modernizing, acquiring new forms and features, which ultimately radically changed the way of the world economy. The task was set to analyze and propose options for improving the investment attractiveness and efficiency...

By Semen Podvalny, Iana Zolotukhina, Olga Sotnikova, Ekaterina Prokshits

Water consumption in a settlement is an extremely variable size that changes constantly over time. Changes in water consumption occur on an annual, monthly, weekly, daily and hourly basis, and depend on many factors such as: climate, season, temperatures, hours of work, consumer habits, etc.Extreme value of consumption, ie. the peak hour flow is de...

By Jasmin Hrnjadović, Nedim Suljić

Freshwater water resources are not inexhaustible [1]. In recent decades, more and more facts point to this statement from the European Charter for Water. Uncontrolled drinking water interventions, losses in water supply and climate change indicate the problem of sufficient quantities of drinking water [2]. Looking at this problem, it is hard to bel...

By Sanel Buljubašić

In this study the adsorption of As(V), Cu(II) and Zn(II) ions from multi-species model solution was tested in dynamic conditions in sand columns containing a thin layer of bentonite (B), iron-based sludge (IS) and synthetic magnetic particles (MP). Adsorption experiments were performed in order to evaluate the removal efficiency and selectivity of ...

By Alexandra Bekényiová, Zuzana Danková, Michal Hegedüs, Zuzana Mitróová, Silvia Dolinská, Ingrid Znamenáčková

Parallel with the research of Bacillariophyta flora in the well with shadoof on the area of Semberija was researched Bacillariophyta flora of other freshwater systems that are located in the near or distant environment from the researched wells, such as Drenovaĉa swamp, Sava river, Jelaz canal, artesian wells and ephemeral swamps. It is very intere...

By Milenko Ćurĉić, Dragica Milinković, Dragana Radivojević, Dijana Đurić