Претрага
1035 items
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Predictions of Experimentally Observed Stochastic Ground Vibrations Induced by Blasting
Kostić Srđan, Perc Matjaz, Vasović Nebojša, Trajković Slobodan. "Predictions of Experimentally Observed Stochastic Ground Vibrations Induced by Blasting" in PLOS ONE 8 no. 12, San Francisco:PloS (2013): е82056-1-е82056-13
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Solving Paraffin Deposition Problem in Tubing by Heating Cable Application
Danilović Dušan, Karović-Maričić Vesna, Čokorilo Vojin. "Solving Paraffin Deposition Problem in Tubing by Heating Cable Application" in Thermal Science 10 no. 1, Beograd:Society of Thermal Engineers of Serbia (2010): 247-253
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Determination of Optimal Parameters of Distributive Gas Pipeline by Dynamic Programming Method
Danilović Dušan, Karović-Maričić Vesna, Ristović Ivica. "Determination of Optimal Parameters of Distributive Gas Pipeline by Dynamic Programming Method" in Petroleum Science and Technology 9 no. 29, Philadelphia:Taylor & Francis (2011): 924-932
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Exchange-Bias and Grain-Surface Relaxations in Nanostructured NiO/Ni Induced by a Particle Size R
Kremenović Aleksandar, Jančar Boštjan, Ristić Mira, Vučinić Vasić Milica, Rogan Jelena, Pačevski Aleksandar, Antić Bratislav (2012)Kremenović Aleksandar, Jančar Boštjan, Ristić Mira, Vučinić Vasić Milica, Rogan Jelena, Pačevski Aleksandar, Antić Bratislav. "Exchange-Bias and Grain-Surface Relaxations in Nanostructured NiO/Ni Induced by a Particle Size R" in Journal of Physical Chemistry C no. 116 (2012): 4356-4354
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Dielectric and ferroelectric properties of BST ceramics obtained by hydrothermally assisted complex polymerization method
Ćirković Jovana, Vojisavljević Katarina, Nikolić Nenad, Vulić Predrag, Branković Zorica, Srećković Tatjana, Branković Goran. (2015)Ćirković Jovana, Vojisavljević Katarina, Nikolić Nenad, Vulić Predrag, Branković Zorica, Srećković Tatjana, Branković Goran.. "Dielectric and ferroelectric properties of BST ceramics obtained by hydrothermally assisted complex polymerization method" in Ceramics international 9 no. 41, :Elsevier (2015): 11306-11313. https://doi.org/10.1016/j.ceramint.2015.05.088
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Adsorption of malathion on mesoporous monetite obtained by mechanochemical treatment of brushite
Mirković, M.M., Lazarević Pašti, T.D., Došen, A.M., Čebela, M.Ž., Rosić, A.A., Matović, B.Z:, Babić, B.M. (2016)Mirković, M.M., Lazarević Pašti, T.D., Došen, A.M., Čebela, M.Ž., Rosić, A.A., Matović, B.Z:, Babić, B.M.. "Adsorption of malathion on mesoporous monetite obtained by mechanochemical treatment of brushite" in RSC Advances (2016). https://doi.org/10.1039/c5ra27554g
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Origin of minette by mixing of lamproite and dacite magmas in Veliki Majdan, Serbia
Prelević Dejan, Foley Stephen, Cvetković Vladica, Romer Rolf. "Origin of minette by mixing of lamproite and dacite magmas in Veliki Majdan, Serbia" in Journal of Petrology 45, Oxford :Oxford University Press (2004): 759-792
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Structural, photoluminescent and photocatalytic properties of TiO2:Eu3+ coatings formed by plasma electrolytic oxidation
Stojadinović Stevan, Radić Nenad, Grbić Boško, Maletić Slavica, Stefanov Plamen, Pačevski Aleksandar, Vasilić Rastko, (2016)Stojadinović Stevan, Radić Nenad, Grbić Boško, Maletić Slavica, Stefanov Plamen, Pačevski Aleksandar, Vasilić Rastko,. "Structural, photoluminescent and photocatalytic properties of TiO2:Eu3+ coatings formed by plasma electrolytic oxidation" in Applied Surface Science 370, :Elsevier (2016): 218-228. https://doi.org/10.1016/j.apsusc.2016.02.131
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Numerical Analysis of Lean Premixed Combustor Fueled by Propane-Hydrogen Mixture
Mahjoub Mustafa Makhzoum Ali, Milivojević Aleksandar, Adžić Vuk, Živković Marija, Fotev Vasko, Adžić Miroljub (2017)Mahjoub Mustafa Makhzoum Ali, Milivojević Aleksandar, Adžić Vuk, Živković Marija, Fotev Vasko, Adžić Miroljub. "Numerical Analysis of Lean Premixed Combustor Fueled by Propane-Hydrogen Mixture" in Thermal Science 6 no. 21, Beograd:Institut za nuklearne nauke Vinča (2017): 2599-2608
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Environmental Energy Security Indicators as Tools for Environmental Protection
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... synthesis indicator Ecological applicability are distinguished by the possibility of numerically quantifying the values describing the mentioned emissions. Both partial indicators are defined based on the amount of pollutants emitted by stoichiometric calculation or standard emission estimates depending ...
... the proportions of the use of renewable sources, as well as the energy intensity by sectors, reduction of energy use (total or sectorial), etc. [11]. The indirect environmental effect parameter is quantified by expert evaluation of the indirect environmental impact of the emission. 3.1 Partial ...
... most represented greenhouse gas is carbon dioxide (84%), followed by methane (8.5%) and nitrous oxide (6.5%), while trace per flour- carbonates (1%) [12]. Concentration of carbon dioxide in the atmosphere is thought to have increased by more than 30% since the end of the 18th century [12]. For the ...Aleksandar Madžarević, Dejan Ivezić, Marija Živković , Miloš Tansijević. "Environmental Energy Security Indicators as Tools for Environmental Protection" in Mining and Environmental Protection-MEP 2019, University of Belgrade, Faculty of Mining and Geology (2019)
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Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)
A groundwater flow model was developed to simulate groundwater extraction from the public water supply source of the City of Kikinda. The hydrodynamic model includes the municipal groundwater source of Kikinda (Šumice and the Jezero Well), but also an extended area where there are groundwater sources that provide water supply to three factories: (MSK, TM and LŽT - Kikinda). Hydrodynamic modeling, based on the numerical method of finite differences will show the groundwater balance of the sources in the ...... balance of the area covered by the model revealed that under the conditions that prevailed during maximum groundwater pumping at Šumice, most of the groundwater in the tapped water-bearing horizon came from the south (35.23%). Table 3 shows the inflow into the area covered by the model under the ...
... water sources on the regime of the public water supply source will also be assessed. The radius of influence of the groundwater source is determined by simulating the travel of conservative particles over a period of 200 days. KEYWORDS Water supply, Aquifer, Flow, Groundwater regime, Numerical ...
... over an area of 13.5 km2 in the spacious Banat Plain, where the highest elevation is 83 m and the lowest 76 m. Water supply is provided to Kikinda by means of 11 wells. The tapped water-bearing horizon is at a depth of about 250 m, formed in Quaternary sands whose thickness is about 50 m. In the ...Dušan Polomčić, Dragoljub Bajić, Jelena Zarić. "Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)" in Journal of Sustainable Development of Energy, Water and Environment Systems (2015). https://doi.org/10.13044/j.sdewes.2015.03.0017
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Effectiveness Analysis of Different Bucket-wheel Excavators
Coal production in open-pit lignite mines in the Republic of Serbia is performed with continuous work systems. In addition to coal production, the same systems are used for the exploitation of large quantities of overburden. According to the reliability concept, continuous systems are in linear connection. If the failure occurs in one part of the system, that will produce a downtime of the entire system. The initial and most important factor of continuous systems is the bucket-wheel excavator. It ...Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Miloš Tanasijević, Filip Miletić. "Effectiveness Analysis of Different Bucket-wheel Excavators" in 8th International Conference Mining and Environmental Protection, Sokobanja, 22-25 September 2021, University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia (2021)
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Kristalne strukture Cs2HoSi4O10F i Cs2TmSi4O10F
... single crystals. The compounds were synthesized by the method of crystal growth from a high-temperature solution (Tmax = 1373 K) using REE2O3 (REE = Ho, Tm), SiO2 and CsF as starting materials. The crystal structures of both compounds were determined by single-crystal X-ray diffraction analysis. They ...
... The crystal structure of these compounds consists of multiple chains of SiO4-tetrahedra connected by infinite one-dimensional chains of REEO4F2-octahedra. Cesium cations are located in tunnels formed by condensation of the tetrahedral network and octahedral chains. SiO4- tetrahedra are interconnected ...
... interconnected via common fluorine apical anions. Figure 1. Projection of the structure of Cs2REESi4O10F parallel to the direc- tion [010] represented by polyhedra. 1 M.C. T. Schleid, Z. Naturforsch. B., 64 (2009) 1329 1338. 2 P. Dab V. Kahlenberg, D. Schmidmair, A. , P. Vuli , Z. Krist.-Cryst ...Predrag Dabić, Sabina Kovač, Aleksandar Kremenović. "Kristalne strukture Cs2HoSi4O10F i Cs2TmSi4O10F" in XXVII konferencija Srpskog kristalografskog društva, Kragujevac, 16-17. septembar 2021., Beograd : Srpsko kristalografsko društvo (2021)
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Early–Middle Jurassic brachiopods from Ponor Mountain, Western Balkan Mountains, Bulgaria; taxonomy, biostratigraphy and occurrence in the context of the early Toarcian Oceanic Anoxic Event
Barbara V. Radulović, Lubomir S. Metodiev, Neda Motchurova-Dekova, Platon Tchoumatchenco. "Early–Middle Jurassic brachiopods from Ponor Mountain, Western Balkan Mountains, Bulgaria; taxonomy, biostratigraphy and occurrence in the context of the early Toarcian Oceanic Anoxic Event" in Historical Biology (2023). https://doi.org/10.1080/08912963.2023.2190757
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An Approach to Management Decision Support: The Coal Mine Pljevlja Management Information System
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 ...... grouping involving interrelated data. For example, production by each production unit can be rolled up to production by type of equipment and further can be rolled up to open pit, or the whole mine, aggregated for specified period, by products (figure 5). In drilldown reports, OLAP can go in the ...
... hierarchical time periods: 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 ...
... ly display detailed data that comprises consolidated data. For example, equipment breakdowns can be accessed by mining production system, equipment or its component part, as well as by the breakdown type or more detailed causes. Slicing and dicing refers to the ability to look at the database from ...Božo Kolonja, Ranka Stanković, Filip Vuković, Ivan Obradović. "An Approach to Management Decision Support: The Coal Mine Pljevlja Management Information System" in Proceedings of the Fifteenth International Symposium on Mine Planning and Equipment Selection, Torino, Italy, September 2006, Vol. 1,, Balkema (2006)
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Negative Impact of Backwater Levels of Danube River and its Tributaries to the Groundwater Regime in Meliorated Riverside Areas
This paper describes updated calculation methodology of Danube backwater impact, occurred as a consequence of “Đerdap I” hydropower plant operation, onto the meliorated riverside areas. This methodology is based on hydrodynamic analysis of groundwater regime (size, duration, level and inflow changes) and quantification of melioration areas impairment which is caused by “Đerdap I” hydropower plant operation. By comparing the groundwater regime elements, obtained by variant hydrodynamic calculation in mathematical models for natural – not backed up and actual – ...HPP ''Djerdap 1'', backwater influence, groundwater regime, hydrodynamic analysis, melioration area, drainage system, additional energy engagementPredrag Pajić, Uroš Urošević, Dušan Polomčić, Milan Dimkić. "Negative Impact of Backwater Levels of Danube River and its Tributaries to the Groundwater Regime in Meliorated Riverside Areas" in IWA Specialist Groundwater Conference, Conference Proceedings and Book of Abstracts, 09-11 June 2016, Belgrade, Serbia, Institut Jaroslav Černi (2016)
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Micro- to nanoscale textures of gold in arsenopyrite and scorodite from the As-Au-Bi assemblage of Drenjak locality (Serbia)
Ivana Jelić, Janez Zavašnik, Marina Lazarov, Alena Zdravković, Sabina Kovač, Jovica Stojanović, Aleksandar Pačevski (2023)Arsenopyrite and pyrite are important carriers of Au that is present in the form of microscopic and “invisible” gold. Such gold can be expected to be released upon the process of oxidation of these sulfides. In studied gold mineralization at Drenjak, related to the granitoids of the Oligocene-Miocene Kopaonik Ore District, the main arsenopyrite-pyrite-(bismuthinite) sulfide assemblage was formed in the quartz bodies and partly replaced by scorodite (FeAsO4·2H2O) and Bi-arsenate. With only up to 5 ppm of gold recorded ...Ivana Jelić, Janez Zavašnik, Marina Lazarov, Alena Zdravković, Sabina Kovač, Jovica Stojanović, Aleksandar Pačevski. "Micro- to nanoscale textures of gold in arsenopyrite and scorodite from the As-Au-Bi assemblage of Drenjak locality (Serbia)" in Ore Geology Reviews, Elsevier BV (2023). https://doi.org/10.1016/j.oregeorev.2023.105711
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Monitoring slope instability in Belgrade suburban area by analzsing satellite and aerial images
Petrović Dragana, Mladenović Ana, Đurić Uroš, Pavlović Radmila. "Monitoring slope instability in Belgrade suburban area by analzsing satellite and aerial images" in Book of abstracts and exucursion guide, Carpatho-Balkan-Dinaric Conference on Geomorphology, 24-28. 2013, Stara Lesna, Stara Lesna: (2013): 62-62
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Devastation of riverside areas by gravel mining: Case study of the Bogatić Municipality in Serbia
Vakanjac Boris, Ristić-Vakanjac Vesna, Bartula Mirjana, Aleksić Janko. "Devastation of riverside areas by gravel mining: Case study of the Bogatić Municipality in Serbia" in International Conference „Ecological Improvment of Devastated Sites for Sustainable Development“ – ECOIDS-2014, Beograd, Srbija:Faculty of Applied Ecology Futura (2014): 29-36
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BST Ceramics Obtained by Hydrothermally Assisted Complex Polymerization Method
Ćirković Jovana, Vojisavljević Katarina, Vulić Predrag, Dojčinović Biljana, Branković Zorica, Srećković Tatjana, Branković Goran (2015)Ćirković Jovana, Vojisavljević Katarina, Vulić Predrag, Dojčinović Biljana, Branković Zorica, Srećković Tatjana, Branković Goran. "BST Ceramics Obtained by Hydrothermally Assisted Complex Polymerization Method" in Book of abstracts of the 3rd Conference of the Serbian Society for Ceramic Materials, June 15-17. 2015. Belgrade, Serbia, Beograd:The Serbian Society for Ceramic Materials (2015): 84-84