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Упит dcterms_subject_txt:Sustainability and the Environment

2793 items

  • INVENTS: A Hybrid Mine Ventilation Planning and Design System

    Lilić Nikola, Stanković Ranka, Obradović Ivan (2013)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...
    hybrid systems, mine ventilation, expert systems
    ... according to a number of criteria. The result of such an expert analysis is an estimate of the validity and effectiveness of the ventilation system followed by suggestions for its improvement. The architecture of the system and the software environment in which the system was developed enable a dynamic ...
    ... analysis phase. The task of visual modeling of the system is to define the objects and logic of the real system using the adopted graphic notation. In view of the fact that SimVent was developed in Visual Studio 6.0 programming environment, the package was presented through UML notation in the form of t ...
    ... constructing and using applications by means of a high-level graphical environment which generates standard C code. In the KAPPA-PC system, the components of the domain are represented by objects that can be either classes or instances within classes (Fig.9). The relationships among the objects in a ...

  • INVENTS: a hybrid system for subsurface ventilation analysis

    Nikola Lilić, Ranka Stanković, Ivan Obradović (2000)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...
    ... according to a number of criteria. The result of such an expert analysis is an estimate of the validity and effectiveness of the ventilation system followed by suggestions for its improvement. The architecture of the system and the software environment in which the system was developed enable a dynamic ...
    ... analysis phase. The task of visual modeling of the system is to define the objects and logic of the real system using the adopted graphic notation. In view of the fact that SimVent was developed in Visual Studio 6.0 programming environment, the package was presented through UML notation in the form of t ...
    ... constructing and using applications by means of a high-level graphical environment which generates standard C code. In the KAPPA-PC system, the components of the domain are represented by objects that can be either classes or instances within classes (Fig.9). The relationships among the objects in a ...

  • Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)

    Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)

  • Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings

    Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić (2018)
    ... performed experimental investigations on copper ore [17]. The basic physical and mechanical properties of the rock mass were determined on samples in the laboratory. By examining the physical and mechanical properties of the work environment, the following values were obtained: • compressive strength ...
    ... Sadovskii’s equation defines the alteration in the velocity of rock mass oscillation depending on the distance, the quantity of explosives, blasting conditions and geological characteristics of the rock mass, and it is determined based on trial blasting for a specific work environment. Thus, this paper offers ...
    ... addition to the seismic ones, those of air blast waves, fly rock, etc. Thus, production efficiency is increased and, at the same time, construction and mining facilities, as well as the environment near the blast site are protected. 2. Recording Rock Mass Oscillation Velocity Intensity of the shock is ...

  • A hydrogeological model of the open-cast mine Tamnava - West Field (Kolubara Coal Basin, Serbia)

    Jelena Ratković, Dušan Polomčić, Dragoljub Bajić, Bojan Hajdin (2016)
    ... Difference Groundwater Modelling and Comparison of the Results with Those Obtained Using Finite element modelling approach. In: RAPANTOVA, N. and HRKAL, Z. (eds.) Proceedings of the 10th International Mine Water Association Congress: Mine Water and the Environment. Ostrava, Czech Republic, 2008. ...
    ... A. (1993) A phased approach to mine dewatering. Mine Water and Environment, 12 (1), pp. 27-33. NIEDBALSKA, K. et al. (2011) Modelling of changes of hydrodynamic conditions in the aquatic environment of the Maczki-Bór sand pit due to the fact of planned closure of mining operations (NE part of Upper ...
    ... River and its tributaries: the Tamnava (left) and the Peštan (right). Tamnava – West Field falls within the municipalities of Lajkovac and Ub, near the villages of Kalenić, Mali Borak, Radljevo and Skobalj. To the west and south, the mine borders on the exploratory field Radljevo, and to the east on ...

  • Modeling and Monitoring of Karst System as a Base for its Evaluation and Utilization - a Case Study from Eastern Serbia

    Milanović Saša, Stevanović Zoran, Vasić Ljiljana, Ristić-Vakanjac Vesna (2011)

  • Процјена хазарда и ризика од клизишта за различите нивое просторног планирања у Републици Српској, БиХ

    Цвјетко С. Сандић (2022)
    Територија Републике Српске је у посљедних десетак година веома угрожена активирањем нових и реактивирањем старих клизишта. Она својим дјеловањем наносе огромне материјалне штете, па и људске жртве, те је неопходно озбиљније третирање и дјеловање у борби са овим природним хазардом. Чест проблем јесте одговорност, тј. надлежност институција из ове области и недостатак у законској регулативи која готово никако или само површно обрађује област хазарда и ризика од клизишта. Усљед непостојања праксе и усвојених методологија које су у примјени у свијету, циљ ...
    Kлизишта, склоност, хазард, ризик, процјена, просторно планирање, угроженост

  • Optimisation of underground mine decline development system using genetic algorithm

    Zoran Gligorić, Aleksandar Ganić, Rade Tokalić, Aleksandar Milutinović (2014)
    ... chromosomes in the population aiming to choose these, which will take part in the reproduction process. The selection occurs with a given probability on the base of fitness functions. The fitness function plays a role of the environment to distinguish between good and bad solutions. The recombination ...
    ... (1) In this formulation x is the n-dimensional vector of SBP and UMCP coordinates, while xL and xU are the n-dimensional vectors representing the lower and upper bounds of the coordinates, i.e. the design space. The optimisation goal is to minimize the objective function f(x) subject to a ...
    ... points in the search space of the constrained optimisation problems, feasible points which satisfy all constraints and unfeasible points which violate at least one of the constraints. At the feasible points, the penalty function value is equal the value of objective function, but at the infeasible ...

  • Hydrogeochemistry of Uranium in the Groundwaters of Serbia

    Marina Ćuk, Maja Todorović, Petar Papić, Jovan Kovačević, Zoran Nikić (2015)

  • New approach to correlation of hydrocarbon reservoirs in sandstone layers of the "Mokrin" field"

    Saša Ivanišević, Dejan Radivojević (2018)
    геофизички каротаж, депозиционе средине, лежишта угљоводоника, миоцен, пост‐ рифтнo, секвенциона стратиграфија
    ...  depositional environment, hydrocarbon  reservoirs, Miocene, post‐rift, sequ‐ ence stratigraphy.    INTRODUCTION    Based on  the correlation applied so  far, oil and gas  reservoirs of  the “Mokrin”  field  represent  individual sandstone  layers. The correlation  is based on similarity  in the shape o ...
    ...  based on the analysis  of the shape and characteristics of curves of gamma ray  (GR) and specific resistivity  (RT)  logs.   Funnel  shape of  the GR  log points  to  the  reduction  in  the basin water  level and  the  increase  in  the  level of  depositional energy, which leads to the reduction  ...
    ... n the content of shale and increase in the content of  sand in the formation.  Bell shape of the GR log follows the trend of grain tapering out upwards, pointing  to the reduction in the level of depositional energy.  Cylindrical shape of the GR log occurs against sand  layers  deposited  in  the  e ...

  • Using technology for knowledge transfer between academia and enterprises

    Ivan Obradović, Ranka Stanković (2014)
    ... teacher assistants (TA) and publish their own educational materials on the platform. As for the entrepreneurial environment, the TEL platform’s backend control panel provides similar opportunities for tracking the progress of graduate students who started to work in companies and are now involved in ...
    ... Object-Oriented Dynamic Learning Environment), a free software e-learning platform, conceived by Martin Dougiamas, who is still the lead developer of the Moodle.Org community. Moodle helps educators to create online courses and fosters interaction within the teacher-student community, especially ...
    ... special attention is given to its language support system (LSS). The main goal of LSS is to sustain expert terminology in a multilingual environment and enhance multilingual communication between academic institutions and enterprises. 5 http://www ...

  • Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area

    Jovan Kovačević, Maja Todorović, Marina Ćuk, Petar Papić (2016)
    jurski sedimenti, uran, torijum, elementi retkih zemalja, podzemna voda, istočna Srbija

  • The correlation of Upper Miocene lithostratigraphic units of the southern part of the Pannonian basin

    Filip Anđelković, Dejan Radivojević (2019)
    gornji miocen, litostratigrafske jedinice, formacije, Panonski basen
    ... difficult. According to this, the first name is the Hungarian one, then the Serbian one, and after that the Croatian one. Furthermore, the depositional environment is indicated after the name. 1.Endrőd – Hetin – Medvedski Breg: hemipelagic lacustrine environment 2. Szolnok – Majdan – Andraševec ...
    ... foreland: geology and hydrocarbon resources. AAPG Memoir. 84, pp 619-632 7. Mațenco, L., & Radivojević, D., (2012). On the formation and evolution of the Pannonian Basin: constraints derived from the structure of the junction area between the Carpathians and the Dinarides. Tectonics. 31, TC6007 8 ...
    ... on the level of formations and members and are characterized by their lithological concent, depositional environments, using field and borehole data, and geophysical methods (reflection seismics and geophysical well-logging). Such correlation has great significance for the knowledge of the Pannonian ...

  • Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia

    Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević (2020)
    Stratigraphy,Economic Geology,Geology,Geophysics,Oceanography

  • Developing Students’ Mining and Geology Vocabulary Through Flashcards and L1 in the CLIL Classroom

    Lidija Beko, Ivan Obradović, Ranka Stanković (2015)
    ... subsets to the Moodle e-learning environment. (Stanković et al 2012, e-Learning). In search of acceptable flashcard system, we have opted for in-house development in order to incorporate all of the platforms used at the Faculty, such as Moodle and the terminology database RudOnto. The ideas and positive ...
    ... around 3000 words allowing a learner to read a text without the need to refer constantly to dictionaries or the teacher, we hypothesized that with the use of flashcards and judicious use of L1 in the CLIL environment, our students will have larger amount of quality foreign language input as well ...
    ... returned. The respondents were freshmen who were specializing in Geology and Mining at the University of Belgrade. Their amount of time in L2 environment was 4 hours per week for 2 semesters, which amounts to about 130 hours of English instruction. All the statements were rated on the Likert scale ...

  • The Potential of Biomarkers to Distinguish Lower and Middle Miocene Lignites from the Coal-Mining District of Lusatia

    I. Kojic, J. Kus, D. Zivotic, K. Stojanovic (2021)
    ... biomarker distributions. Therefore, the objective of the study is to examine the potential of biomarkers to distinguish Lower and Middle Miocene lignites in relation to sources and depositional environment of organic matter (OM). Lignite samples were collected from the 2nd Miocene Seam Horizon or its ...
    ... stable water-level during peat formation and moderate supply of mineral matter. Total sulphur content ranges from 0.67 to 0.80% and from 0.90 to 1.24 % in Lower and Middle Miocene samples, respectively, implying peatification in the freshwater environment. In aliphatic fractions of all samples ...
    ... angiosperms. The contents of C27 and C29 n-alkanes in relation to C31 and C33 homologues imply similar impact of forested and reed-mire vegetation. The presence of tricyclic (abietane, pimarane, isopimarane) and tetracyclic (phyllocladane, bayerane, kaurane) diterpenoids indicates the contribution ...

  • Mineral composition of the airborne particles in the coal dust and fly ash of the Kolubara basin (Serbia)

    Cvetković Željko, Logar Mihovil, Rosić Aleksandra, Ćirić Aleksandra (2012)

  • 2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem

    Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov (2019)
    2D inversion, geoelectrical method, Wenner array, ecology, Ada Huja
    ... resistivity values and a dielectric constant value which are in contact. Taking into account that the GPR survey was conducted in the urban environment where the presence of noise is at a higher level, the horizontal interface could be coherent noise that was picked up by the receiving antenna ...
    ... same volume of carbon-dioxide (Themelis and Ulloa, 2006) Not long after the waste is disposed in a landfill, organic compounds initiate biochemical reactions in an air stimulated environment. The product of this reaction is carbon-dioxide and water vapor. First phase is bacteria fermentation, which ...
    ... carbon-dioxide etc.), and hydrogeological measurements for the quality of the underground water. REFERENCES ALEXANDER, A. (2010) An Overview of Landfill Gas Energy, Landfill Methane Outreach Program (LMOP). ANDRADY, A. (2011) Microplastics in the marine environment. Marine Pollution Bulletin ...

  • The Importance and Utilization of Mineral and Thermal Waters in Serbia as a Natural Curative Factor

    Dokmanović Petar, Krunić Olivera (2015)

  • WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)
    ... The next section presents the methodological approach to development of the geodatabase, and a description of logical structure and physical database implementation. Section 3 outlines the development environment and usage of the system components, including the handling of spatial and attribute ...
    ... / EC [2] by the European Parliament and the Council of Europe in European Union member countries, the infrastructure was established for spatial information records with the aim of improving environmental policy, that is policies and actions that have an impact on the environment (INSPIRE). Emphasis ...
    ... data related to the environment. Interoperability within INSPIRE implies the possibility of combining spatial data and web services from various sources throughout the European Union in a consistent way without specific human or hardware requirements, relying on EN ISO 19115 and EN ISO 19119 [3] ...