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Упит dcterms_subject_txt:working environment

453 items

  • BEYOND 2020 - Geology explorations and open pit activities affectation in reclamation designing in Kolubara Coal Mines (KCM) Serbia, new considerations

    Bojan Dimitrijević, Bogoljub Vučković, Radmila Gaćina (2023)
    Geology explorations in KCM runs from 1936. year up to these days and still ongoing. Results in >7,200 drill holes with ≈600,000 m of core drilling and gave lignite ore resources of > 4,1Bt, which 1,15Bt are excavated since 1986. of XIX up to early years of XXI century. For further mining operations in open pits stay 1,5Bt of lignite. Under waste heaps are ≈80 km2, additional 85 km2 should be filled. All of that masses/areas were, are ...

  • Испитивање магнетске сусцептибилности прашине антропогеног порекла

    Дубравка Новичић, Весна Цветков, Весна Дамњановић (2019)
    ... measurements on PM10 filters from two stations in Serbia and comparison of the results with those from nine Hungarian stations. In: Geosciences and Environment. The 3rd International Professional Conference, 27-29 May 2012, Belgrade, Serbia. [3] Pejić, B. (2015). Zagađenje vazduha kao determinanta ekološke ...
    ... pollution. London: Elsevier Inc., 942. [6] Pandey, J. S., Kumar, R., et. al. (2005). Health risks of NO2, SPM and SO2 in Delhi (India). Atmospheric Environment, 39, 6868-6874. [7] Liu, Q., Roberts, A.P. et al. (2012). Environmental magnetism: Principles and applications, Rev. Geophys., 50. [8] Dearing ...

  • The Importance of Geotechnical Investigations for the Construction of Transfer Station „Prelići“ on Landfill in Cacak – Serbia

    Dragoslav Rakić, Irena Basarić, Jovana Janković, Tina Đurić (2019)
    For the purpose of the facilities construction within the transfer station „Prelici“ in Cacak, specific geotechnical investigations were carried out based on which the technological project with the facilities schedule was developed. Significant deviations in relation to the presented results were determined during earthworks, so the additional geotechnical investigation works were carried out. Since the new investigation works have determined a different cross section of the terrain, it was proposed to move the planned facilities which led to the ...
    landfill, geotechnical investigations, transfer station
    ... tiers, bulky household waste etc.). The transfer station complex itself contains technological units which are defined by zones in which different working operations are carried out: receiving-departure zone, transporter zone, zone for receiving and temporary storage of recyclable waste and specific ...
    ... Keywords: landfill, geotechnical investigations, transfer station 1. INTRODUCTION Sebia's EU accession implies significant progress in the field of environment, and one step is the construction of a large number of transfer stations. Based on the waste management strategy in the Republic of Serbia and ...
    ... infrastructure facilities and their integration into existing planning guidelines and • fitting structures and equipment into the urban industrial environment. In addition, an analysis of the available waste composition data and their comparison with the total mass of waste with data from different ...

  • Business Models for Small-scale Biomass Projects Development

    Dejan Ivezić, Miodrag Gluščević, Marija Živković (2019)
    Biomass is recognized as the most promising renewable energy source in Serbia. The share of biomass in Serbian final energy consumption is over 10%, but mostly related to traditional use in stoves and ovens. One of the main obstacles for wider implementation of contemporary biomass facilities is the inexperience of consumers and stakeholders in the implementation of “innovative” business models, especially in the cases of small-scale projects. In this paper, three different business models (public utility company, energy cooperative ...
    ... currently the largest single source of pollution in the village. If existing, dilapidated boiler would be replaced by modern woodchips boilers, state of environment during the winter period would be significantly better. Three different business models for investments in the replacement of heat source has been ...
    ... services, introduction of “energy independency” concept in the most important facilities in the settlement, besides financial savings and clear environment, has significant informative and educational effect regards to promotion of energy efficiency measures and renewable energy use. However, for obtaining ...

  • An Approach to Management Decision Support: The Coal Mine Pljevlja Management Information System

    Božo Kolonja, Ranka Stanković, Filip Vuković, Ivan Obradović (2006)
    In this paper we describe the approach that has been used in the development of the Management Information System (MIS) in the Coal Mine Pljevlja in Montenegro. The methodology of this approach was based on new information technologies and management techniques which have already been successfully applied in other related fields. Its main goal was to introduce modern management techniques to mining, adapted to specific features of the mining industry, its operations and environment, thus enabling the tactical management ...
    ... monthly, quarterly, yearly and the like; and present data in different perspectives, such as breakdowns by equipment versus breakdowns by type and by working hour per organizational unit. Figure 5. Pivot table based on OLAP cube with rolled-up production Figure 6. OLAP cube 4 CONCLUSION TIS ...
    ... Its main goal was to introduce modern management techniques to mining, adapted to specific features of the mining industry, its operations and environment, thus enabling the tactical management in mining to apply novel management technologies which are already being used with success in other industrial ...

  • Synergy between the mineral deposit exploration and geothermal resources assessment on the example of "Valjevo" boron and lithium deposit in Serbia

    Nebojša Atanacković, Vladimir Živanović, Ana Vranješ, Sava Magazinović, Marinko Toljić, Ana Arifović, Branislav Potić (2023)
    Exploration of mineral deposits involves a collection of vast data sets on geological characteristics of the area. These data can largely contribute to the assessment of the geothermal potential, which can lead to an increase in the share of geothermal resources in the energy mix of the extractive industry and the local community. On the example of the "Valjevo" B-Li deposit, data on structural settings and previous hydrogeological investigations were combined with the results of resource drilling and geophysical ...
    Geothermal assessment, Mineral deposit exploration, Geothermal potential, Serbia
    ... were compiled: geological, hydrogeological data and geothermal indicators. Data (point, line, polygon, raster) were spatially analyzed in a GIS environment. Vranješ et al. [8] provide more details on applied methodology. 4. RESULTS AND DISCUSSION 4.1. Basin basement geology Modelling of the l ...
    ... results of the downhole survey of the resource drillholes and the results of previous research. These gradient values are interpolated in a GIS environment, resulting in Neogene geothermal gradient map (Figure 4). 7,416,000 7,418,000 7,420,000 7,422,000 7,424,000 7,426,000 4, 90 8, 00 0 4, 90 ...

  • Reconstruction of the Tethys' waning in the Balkans: New insights from Upper Cretaceous igneous formations and zircon provenance data

    Dejan Prelević, Kristijan Sokol, Ana Mladenović, Violeta Gajić, Vladica Cvetković (2024)
    geochronology, zircon, provenance
    ... new findings on the data on the zircon provenance from Upper Cretaceous formations. Our goal is to constrain the timing, origin, geodynamic environment, and lifespan of the purported Cretaceous Sava Ocean. The central scientific question Wec address is whether the Sava-Vardar Zone represents: ...

  • NMR kinetic studies of the interactions between [Ru(terpy)(bipy)(H2O)]2+ and some sulfur-donor ligands

    Aleksandar Mijatović, Biljana Šmit, Ana Rilak, Biljana Petrović, Dragan Čanović, Živadin D. Bugarčić (2012)
    Reakcije supstitucije monofunkcionalnog [Ru(terpi)(bipi)(H2O)]2+ kompleksa, gde je terpi = 2,2′:6′,2″-terpiridin i bipi = 2,2′-bipiridin, sa biološki relevantnim sumporo donorskim ligandima, kao što su tiourea, l-metionin, l-cistein i glutation, proučavane su u vodenim rastvorima tehnikom 1H i 13C NMR spektroskopije. Sve reakcije su proučavajne na pH 7,4, u prisustvu fosfatnog pufera, da bi se oponašalo fiziološko okruženje tokom procesa supstitucije. Reakcije se izvode na 295 K pod uslovima reakcija drugog reda. Uočeni rezultati pokazuju da brzina supstitucije snažno zavisi ...
    Materials Chemistry,Inorganic Chemistry,Physical and Theoretical Chemistry

  • Environmental Energy Security Indicators as Tools for Environmental Protection

    Aleksandar Madžarević, Dejan Ivezić, Marija Živković , Miloš Tansijević (2019)
    Еколошка прихватљивост је постала незаменљив синтезни показатељ сваке валидне енергетске анализе у последње две-три деценије. Енергетска безбедност је у директној хармонији с еколошком прихватљивошћу кроз многе прописане политичке циљеве, економске користи, правне тековине итд. Индикатори еколошке сигурности представљају један од основних елемената за одређивање енергетске безбедности и снажне алате за усмеравање енергетског сектора ка одрживом развоју. У овом раду, анализа је била концентрисана на показатеље енергетске безбедности у области животне средине који се односе на сектор природног гаса у ...
    енергетска безбедност, еколошки енергетски индикатори, заштита животне средине, еколошка прихватљивост
    ... security, this partial indicator describes the impact of the use of fossil fuels on health care costs, increase or decrease in GDP, decrease in working ability of the population, etc. An Indirect environmental effect can be an important long-term indicator of (incorrect) correctness of an energy ...
    ... Treaty establishing the Energy Community in 2006. [6]. Based on the Treaty, implementation of core parts of the EU acquits Communautaire in environment and energy sector are obligations of Serbia. In this paper energy security and environmental energy security indicators in energy sector are shortly ...
    ... through combustion sub-products - nitrogen oxides. The most significant nitrogen oxides whose effects on the health of living things and the environment are the largest are nitrogen oxide (NO), nitrogen dioxide (NO2) and nitrogen sub-oxide (N2O). The common name for these nitrogen oxides is NOx ...

  • The oil industry and climate changes

    Dejan Radivojević (2020)
    Uprkos tome što je problem klimatskih promena poznat dugi niz godina i dalje veliki broj ljudi poistovećuje pojam vremenskih prilika sa klimom ne uzimajući u obzir različitu dužinu njihovog trajanja. U medijima se vrlo često mogu naći katastrofična predviđanja vezana za zagrevanje naše planete usled neodgovornog ponašanja čoveka. Sa druge strane geolozi znaju da je tokom geološke prošlosti naše planete bilo mnogo toplijih intervala od današnjih kao i da ti intervali nisu neminovno rezultovali masovnim izumiranjem živog sveta već su ...
    vremenske prilike, klima, naftne kompanije, strategije, Srbija
    ... http://climateaccountability.org/pdf/TrainingManual%20CAI%2030Sep19lores.pdf https://www.theguardian.com/environment/2019/oct/09/what-we-know-top-20-global-polluters https://www.theguardian.com/environment/2019/oct/09/what-we-know-top-20-global-polluters https://www.jstor.org/bookseries/j.ctt1551mrr?refr ...
    ... 1068/c9752 [9] The Guardian. What do we know about top 20 global polluters? 2019 [citirano 09.10.2019]. Dostupno na https://www.theguardian.com/environment/2019/oct /09/what-we-know-top-20-global-polluters [10] Skjærseth JB, Skodvin T. Climate change and the oil industry Common problem, varying ...

  • Развој геолошког терминолошког речника ГеолИССТерм

    Ranka Stanković, Branislav Trivić, Olivera Kitanović, Branislav Blagojević, Velizar Nikolić (2011)
    ... Olivera Kitanović3, Branislav Blagojević4, Velizar Nikolić5 1, 2, 3 Faculty of geology, University of Belgrade, 4 See, Belgrade 5 ministry of the environment, mining and Spatial Planning of the republic of Serbia Translated from Serbian by Jelena Bajić ScIeNTIFIc PAPer UDc 55:001.4:004.9(038) Abstract: ...
    ... re for the Geologic Database of Serbia carried out by the Faculty of mining and geology, University of Belgrade, funded by the ministry of the environment and Spatial Planning of the republic of Serbia. A short history of geolISSTerm and an overview of the structure and the way of arranging terms ...
    ... for indexing. All this leads to the conclusion that thesauruses are primarily intended to be used by humans, although they are used in the IT environment. The definitions of the boundary between a thesaurus and an ontology in the literature dif- fer, ranging from those stating that ontologies and ...

  • Open Educational Resources in Serbia

    Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević (2020)
    Open educational resources, BAEKTEL, Metadata portal
    ... teachers and students. In recent times the concept of OER has been recognized as a very important part of teaching process through many initiatives, working groups… Learners Learners as initial target group for OER give valuable feedback about OER quality and improvement of current state. Also, former ...
    ... other mentioned educational content. Stefanovic and Milosevic (2016) suggest a holistic approach for the design of open learning software environment and conclude that in the OER field there is a need for specific methodology. Zancanaro (2015) conclude that collaborative learning and ...
    ... responding to the demand for access to ICT infrastructure, educational institutions are also required to improve the teaching and learning environment (development and enhancement of curricula, programme and course design, planning of contact hours, elaboration of quality teaching and # - ...

  • Definition of Circulation Conditions and Groundwater Genesis of the Complex Krupaja Hydrogeological Karst System (Eastern Serbia)

    Ljiljana Vasić, Saša Milanović, Tina Dašić (2023)
    Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment, Geography, Planning and Development, Building and Construction
    ... channel distribution were created. The total length of the karst channel network, which was calculated using, this model and presented in a 3D environment, is 647.29 km. Detail of the model is shown in Figure 4C. For the purposes of defining the circulation conditions within the karst aquifer that ...
    ... of Bosnia and Herzegovina, 11–15 June 2014; COBISS.RSID 4308248; pp. 73-78, ISBN 978-99938-52-58-2. Milanović, S. Physical Modeling, of Karst Environment. In Karst Aquifers—Characterization and Engineering; Professional Practice in Earth Sciences; Stevanovic, Z., Ed.; Springer: Berlin/ Heidelberg ...

  • The ‘Umka’ landslide

    Uroš Đurić, Dragana Đurić, Miloš Marjanović, Biljana Abolmasov, Ivana Vasiljević (2024)
    We present an in-depth landslide map of the ‘Umka’ landslide near Belgrade, Serbia, at a scale of 1:5000. The map delineates elements at risk, primarily buildings and road infrastructure impacted by the landslide displacements of several cm per year, introduced during frequent reactivation stages. The Main map results from a survey of over 350 buildings and more than 7 km of state and local roads. The acquisition techniques included engineering geological field mapping, building survey, and visual interpretation of ...
    rizik od klizišta, elementi rizika, kartiranje pomoću drona, ispitivanje objekata, geotehnički monitoring

  • Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae

    Hans Peter Nytoft, Geir Kildahl-Andersen, Sofie Lindström, Frode Rise, Achim Bechtel, Danica Mitrović, Nataša Đoković, Dragana Životić, Ksenija A. Stojanović (2019)
    Two previously unidentified dehydroabietane isomers were isolated from Miocene Serbian lignite and Rhaetian (Late Triassic) coaly mudstones from South Sweden and characterized using NMRspectroscopy as cis- and trans-dehydroicetexane. Both have a 9(10?20)-abeo-abietane or icetexane skeleton, consisting of a 6-7-6 tricyclic framework with seven carbons in ring B instead of the usual six in common diterpanes of the abietane-type. Dehydroicetexanes can be detected using GC-MS-MS in m/z 270?146 chromatograms without interference from dehydroabietane or other isomers. Dehydroicetexanes are often abundant ...
    Geochemistry and Petrology

  • GIS Application Improvement with Multilingual Lexical and Terminological Resources

    Ranka Stanković, Ivan Obradović, Olivera Kitanović (2010)
    ... internet publishing of geologic information. The second section introduces various lexical and terminological resources used in the GeolISS environment. The third section presents the use of these resources for multilingual map annotation with an example. The resources also enable semantic ...
    ... Digital Mapping Techniques ‘03—Workshop Proceedings, U. S. Geological Survey Open-File Report 03-471, p. 157-167. SEE (Solid Earth and Environment) Grid, (2009). GeoSciML - the CGI Datamodel and Encoding http://www.seegrid.csiro.au/twiki/bin/view/CGIModel/ GeoSciML. ISO (2009). TC211 ...

  • XRD dertermination od hydrothermal phases related to epithermal mineralization in the Čukaru Peki deposit

    Dragana Bosić, Vladica Cvetković, Miodrag Banješević, Kristina Šarić (2024)
    Čukaru Peki, epithermal mineralization, hydrothermal alterations

  • Prognoza operativne efikasnosti aktivnog podzemnog rudnika zasnovana na teoriji sivih sistema

    Svetlana M. Štrbac-Savić (2016-06-10)
    Efikasnost predstavlja preduslov za opstanak svake rudarske kompanije, posebno u uslovima izuzetno konkurentnog trţišnog okruţenja kao što je to rudarska industrija. Efikasnost oznaĉava sposobnost kompanije da ispuni svoje kratkoroĉne ili dugoroĉne ciljeve. Operativna efikasnost se definiše kao odnos izmeĊu ulaznih parametara potrebnih za odvijanje proizvodnje i pokazatelja dobijenih proizvodnjom. U kontekstu rudarskog poslovanja, operativna efikasnost se odnosi na vreme potrebno da se mineralno dobro transformiše u novĉana sredstva. Visoka operativna efikasnost se postiţe kada se ostvari prava kombinacija karakteristika ...
    podzemni rudnik, operativna efikasnost, prognoza, teorija sivih sistema, stohastiĉke diferencijalne jednaĉine, simulacija
    ... forecasting process is performed in a specific environment. If we take into consideration the fact that the environment is changed over time then it is obvious that the forecasts and targets are changed as well. Management must be able to describe environment changes in order to strategically link ...
    ... forecasting process. This paper investigates the relationship between ore production rate, fixed costs, revenues, production costs, working days, and degree of use of production capacity, as input variables, and Degree of Operating Leverage (DOL) as indicator of operational efficiency of an existing ...
    ... uniform distribution. Geometric Brownian motion is used to define future values of production costs. Values of ore production rate, fixed costs, working days, and degree of use of production capacity are estimated by expert‘s knowledge. By simulating a forecasting system, we imitate its action ...

  • Keyword Extraction from Parallel Abstracts of Scientific Publications

    Slobodan Beliga, Olivera Kitanović, Ranka Stanković, Sanda Martinčić-Ipšić (2017)
    ... with annotated keywords allows a better comparison of the performance of the method across languages since we have the con- trolled experimental environment and data. The achieved keyword extrac- tion results measured with an F1 score are 49.57% for English and 46.73% for the Serbian language, if we disregard ...
    ... transcripts [20], emails [25], web pages [27], etc. However, if such a keyword extraction method needs to be applicable in a bilingual or mul- tilingual environment then the module which incorporates semantic or linguistic knowledge needs to be developed for each language separately. In this paper, we test the ...
    ... the nature, size, and con- tent of the texts. Usually, we compare unrelated datasets across languages. This set-up provides a controlled and fair environment for the evaluation. We can conclude that SBKE can be easily ported to a different language, domain and type of text in the sense of its structure ...

  • Arsenic in Tap Water of Serbia´s South Pannonian Basin and Arsenic Risk Assessment

    Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić (2012)
    kvalitet podzemnih voda, arsen, analiza rizika, Panonski Basen
    ... at: www.dr.rgf.bg.ac.rs Introduction Arsenic (As) occur naturally in the environment in a number of different forms. Some are toxic, while others are not. Pure arsenic, a gray-colored metal, is rarely found in the environment. Instead, it is usually combined with one or more other elements such as oxygen ...
    ... undertaken in accor- dance with the Drinking Water Sampling and Laboratory Analysis Rulebook [24]. The laboratory for chemical test- ing of the environment at the Faculty of Natural Sciences of the University of Novi Sad used advanced and specialized tools for the precise required analysis. Arsenic ...