The physical and mechanical characteristics of coal seams, immediate floor and roof significantly influence to the choice of systems (the methods and technologies) of coal underground exploitation, and in this paper, their grouping and sorting by importance for the conditions of active underground mines in Serbia was carried out. The research is ba...

By Jelena Trivan, Dražena Tošić, Vladimir Todorović

Natural and landscape complex of Pale municipality, where dominates mountainous areas, are characterized by diversity of geological and geomorphological phenomena and forms, as well as biological and ecosystem diversity. The significance of natural heritage is multiple, especially in terms of tourism and adapting the tourist offer to the needs and ...

By Jelena Golijanin, Sanda Šušnjar, Rade Ivanović

Results of scientific and practical justification of use as a part of designs of biological protection of polymer concrete on the basis of non - isocyanates polyurethane are presented. Influence of a ratio polymer is established: radiation - resistant filler on strength and protective properties of a polymer concrete. Regression dependences of chan...

By Dimitry Barabash, Andrei Barabash, Sergey Pinaev

The article studies the effect of solar radiation at different seasons on the mode of deformation (MD) of a span structure with an orthotropic plate. The temperature fields of the elements of the structure were measured during daylight hours at different times of year at various air temperatures and sun positions. Cases were identified in which it ...

By Sergey Gridnev, Igor Podlesnykh, Yuri Skalko, Aleksandr Rezunov

Drainage of surface water from the pavement structure is an important parameter for preserving the designed period and safety during the operation of the pavement structure. The paper presents research on the relationship between the efficiency of drains depending on the cross slope. When the correct selection of transverse slopes and the collectio...

By Zahid Bašić, Anadel Galamić

Sizing the production capacity of underground coal mines is an extremely complex task with a number of specifics that must be taken into account when designing the mines. The main factors are the specific natural-geological conditions of the deposit, which determine the application of an adequate excavation system followed by organizational factors...

By Vladimir Todorović, Dražana Tošić, Jelena Trivan

The "Ribnica" landfill of the "Vrtlište" surface mine bordered the river Ribnica until during 2017, a landslide was started and the river Ribnica was interrupted, and a water reservoir was formed. After the completion of the tunnel that diverted the river Ribnica, its previously interrupted riverbed in the downstream part is planned for continuatio...

By Jasmin Isabegović, Kenan Mandžić

Changes in the structure and fragmentation of land plots, arising from the process of privatization and restitution, as well as from the realization of large-scale infrastructural projects in Southeast Europe and similar, actualize problems in terms of intensive agricultural production, and aesthetic and functional spacing design. The need for init...

By Goran Marinković, Jelena Lazić, Slobodan Morača, Ilija Grgić

The study presents results of the measurements of the atmospheric nitrogen dioxide concentration and simultaneous meteorological variables: average temperature, air pressure, and relative humidity, speed and wind direction. The data were collected from July 2015 to June 2017 at stations located in Banja Luka (locality Centre). Nitrogen dioxide is o...

By Predrag Ilić, Zoran Popović, Suzana Gotovac-Atlagić

Vertical distribution of species and infraspecies taxa of diatoms (Bacillariophyta) on well mosses where they live epiphytically, and a relative number of individuals per surface area unit were followed in 8 open wells with shadoof. Researches were conducted during 2015-2016 through four seasons. Sampling of algae material from well mosses that cov...

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