Претрага
454 items
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Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes
... generations without compromising the ability of future generations to meet their needs. Brundtland definition of sustainable development implies equal distribution of resources, not only spatially between users in a certain period, but also temporally between different generations of users over time. The idea ...
... level of nitrogen oxide emissions, while thermal power plant “Kostolac B” was in fifth place in 2012 and 2013 and in third place in 2014. Spatial distribution of emissions of pollutants is determined according to the level of emissions, in metric tons per annum. Emission values are classified into six ...
... have the fifth level of emissions of sulfur oxides (from 50,000 to 100,000 t/year) and nitrogen (from 5000 to 10,000 t/year). Based on the spatial distribution of the particulate emissions, it is concluded that thermal power plants “Kostolac A” and “Kostolac B” are in an area with the fifth level of pollution ...Jelena Malenović Nikolić, Dejan Vasović , Ivana Filipović , Stevan Mušicki, Ivica Ristović . "Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes" in Energies (2016). https://doi.org/https://doi.org/10.3390/en9121071
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The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)
... were particularly pronounced. The analysis of the total water losses from the tunnel showed that they were relatively acceptable and that their distribution along the tunnel was not uniform. The closer assessment of the zone with the highest water losses pointed to the part of the tunnel where the concrete ...Marina Čokorilo Ilić, Ana Mladenović, Marina Ćuk, Igor Jemcov. "The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)" in Water, MDPI AG (2019). https://doi.org/10.3390/w11030603
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Primena AHP и WoEmetode u proceni podložnosti terena na kliženje za područje opštine Krupanj
Biljana Abolmasov, Jelka Krušić, Katarina Andrejev, Miloš Marjanović, Ranka Stanković, Uroš Đurić (2017)... but WoE has slightly better va- lidation parameters. These results are a solid background for general overview of the landslide susceptibility distribution at municipality scale, and can be successfully used for further landsli- de risk assessment or large scale planning. Key words: landslides, AHP ...Biljana Abolmasov, Jelka Krušić, Katarina Andrejev, Miloš Marjanović, Ranka Stanković, Uroš Đurić . "Primena AHP и WoEmetode u proceni podložnosti terena na kliženje za područje opštine Krupanj" in Izgradnja, Beograd : Udruženje inženjera građevinarstva, geotehnike, arhitekture i urbanista Izgradnja (2017): 239-246
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Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research
магнетометријска испитивања, цик-цак и паралелна аквизиција у ходајућем моду, линеарне аномалије, археологија... this error can result in the complete fl ecking of the anomalies, such as in this case. Expecting that the GPS error will lead to such a spatial distribution of the measured points, be- fore and after the completion of the measurements with GPS, the geographic coordinates of the cor- ner points of the ...Mirko Petković, Vesna Cvetkov, Branislav Sretenović. "Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research" in Arheologija i prirodne nauke (2014)
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A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia
When assessing the potential of renewable energy alternatives for electricity generation, it is necessary to implement a multi-perspective approach that includes economic, technical, environmental, and socio-political criteria. For the evaluation of criteria and alternatives, the Fuzzy Analytical Hierarchy Process (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a fuzzy numerical value scale for the assessment of expert judgments and energy indicators provides a more sensitive ...... Electric Power Industry of Serbia (EPS) is the largest energy company in Serbia. The main activities of EPS are electricity generation, supply, distribution, and trading. Electricity generation in Serbia relies on lignite for around 70% of its electricity production. (EPS, 2018). EPS operates with 6 ...
... Parous- sos, 2018). 4. Local biodiversity (SC4) - negative impacts on biodiver- sity from renewable energy projects, as well as energy transport and distribution system (Moreira, 2019). Using the predetermined linguistic variables experts performed a pairwisecomparison of RESs with respect to the chosen ...Boban Pavlović, Dejan Ivezić, Marija Živković. "A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia" in Energy Reports, Elsevier BV (2021). https://doi.org/10.1016/j.egyr.2021.02.072
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Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeFen Huang, Ljiljana Vasic, Xia Wu, Jianhua Cao, Saša Milanovic. "Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia" in Environmental Earth Sciences, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s12665-019-8452-4
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Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду
... stability in unsatureated overconsolidated clayey soil. 9th Congress IAEG – Durban South Africa. HADŽI-NIKOVIĆ G., 2009: The influence of the grain-size distribution and soil structure on the unsaturated shear strength of loess sediments in Belgrade, central Serbia. Geološki anali Balkanskoga poluostrva ...
... , 2012: Exchange-Bias and Grain-Surface Relaxations in Nano- structured NiO/Ni Induced by a Particle Size Reduction. Journal of Physical Chemistry, C 116 (7), 4356–4364. JOVIĆ N., PREKAJSKI M., KREMENOVIĆ A., JANČAR B., KAHLENBERG V., ANTIĆ B., 2012: Influence of size/crystallinity effects on the ...
... anatase/rutile size-strain modelling. Journal of Applied Cry- stallography, 46, 1874–1876. VUCINIC-VASIC M., BOZIN E.S., BESSAIS L., STOJANOVIC G., KOZMIDIS-LUBURIC U., ABEYKOON M., JANCAR B., MEDEN A., KREMENOVIC A., ANTIC B., 2013: Thermal Evolution of Cation Distribution/Crystallite Size and their ...главни и одговорни уредник Душан Поломчић. Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду, Београд : Универзитет у Београду, Рударско-геолошки факултет, 2016
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Mineral and Thermal Waters of Serbia: Multivariate Statistical Approach to Hydrochemical Characterization
Maja Todorović, Jana Štrbački, Marina Ćuk, Jakov Andrijašević, Jovana Šišović, Petar Papić . "Mineral and Thermal Waters of Serbia: Multivariate Statistical Approach to Hydrochemical Characterization" in Mineral and Thermal Waters of Southeastern Europe, Springer International Publishing (2016). https://doi.org/10.1007/978-3-319-25379-4
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Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains
carbon and oxygen isotopes, radiolarians, calcareous dinoflagellates, radiolarites, Krížna Nappe, West ern Carpathians, Tethys... the zonal marker for the stratigraphically higher Fortis Zone (Reh4- nek, 1992). But, in order to accept and make a correction to this cyst distribution and also a possible zonal scheme in the future, additional information is needed. Despite the fact that one cyst resembles Carpistomio- sphaera ...
... zones)-Early Tithonian age (Pulla— Malmica zones; Grabowski and Pszczotkowski, 2006; Jach et al., 2012; Grabowski ef al., 2013). Regional distribution and age of radiolarites The data presented above on the basis of integrated bio- stratigraphy and isotope stratigraphy permit the sedimenta- ...
... from the Manin Unit (Butkov Klippe, Middle Vah valley, Western Carpathians). Mineralia Slovaca, 31: 79-86. RehakovaA, D., 2000. Evolution and distribution of the Late Juras- sic and Early Cretaceous calcareous dinoflagellates recorded in the Western Carpathian pelagic carbonate facies. Minerafia ...Renata Jach, Nevenka Đerić, Špela Goričan, Daniela Reháková. "Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains" in Annales Societatis Geologorum Poloniae (2014)
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Resource-based WordNet Augmentation and Enrichment
In this paper we present an approach to support production of synsets for SerbianWordNet(SerWN)byadjustingPrincetonWordNet(PWN)synsetsusing several bilingual English-Serbian resources. PWN synset definitions were automatically translated and post-edited, if needed, while candidate literals for Serbian synsets were obtained automatically from a list of translational equivalents compiled form bilingual resources. Preliminary results obtained from a setof1248selectedPWNsynsetsshowthattheproducedSerbiansynsetscontain 4024 literals, out of which 2278 were offered by the system we present in this paper, whereas experts added the remaining 1746. Approximately one half of ...... number of literals was found in the remaining 507 (3%) synsets. For the 11,091 synsets with same number of literals in English and Serbian the distribution according to the number of literals was as follows: there were 7063 (64%) synsets with one literal, 3288 (30%) with two, 561 (5%) with tree, and ...Ranka Stanković, Miljana Mladenović, Ivan Obradović, Marko Vitas, Cvetana Krstev. "Resource-based WordNet Augmentation and Enrichment" in Proceedings of the Third International Conference Computational Linguistics in Bulgaria (CLIB 2018), May 27-29, 2018, Sofia, Bulgaria, Sofia : The Institute for Bulgarian Language Prof. Lyubomir Andreychin, Bulgarian Academy of Sciences (2018)
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Integrative GHG Assessment in Oil and Gas Industry
Reducing greenhouse gas emissions is one of the main targets of national strategies in European countries. As a main contributor to emissions, the energy sector is recognized as the most promising to apply measures and actions aimed to decrease GHG emissions. The Oil and Gas industry as a significant contributor to global greenhouse gas emissions is facing a growing need for estimating, mitigating, and reducing the impact of their operations on the atmosphere to stay competitive in a newly ...... n and exploitation of energy sources, conversion of primary cnergy sources into usable forms in refineries and power plants, transmission and distribution of fucls, and the use of fuels in stationary and mobile applications. These activities result in emissions of carbon dioxide (CO») from the ...Aleksandar Mirković, Marija Živković, Stevan Đenadić, Darja Lubarda, Chinedu Anyanwa. "Integrative GHG Assessment in Oil and Gas Industry" in Energija, ekonomija, ekologija (2023). https://doi.org/10.46793/EEE23-1.51M
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Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria
The choice of adequate mining machines is one of the most complex problems in the underground exploitation of mineral raw materials. The weight of such a decision is reflected in the high prices of these machines and the occurrence of even greater costs during their use if their choice was wrongly conceived. There are numerous examples from practice in which such decisions were made solely on the basis of comparing the prices of machines, without considering any of the ...utovarno-transportna mehanizacija, izbor, TOPSIS, entropija, standardna devijacija, težina kriterijumaVladimir Krivošić, Luka Crnogorac, Rade Tokalić. "Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria" in Underground mining engineering, University of Belgrade - Faculty of Mining and Geology (2024)
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Influence of Initial Treatment on the Survival and Recurrence in Patients With Differentiated Thyroid Microcarcinoma
... classified as microcarcinoma. All relevant clinical information including diagnosis at pre- sentation, histological reports from the initial surgery (size, type of the tumor), and cause of death were extracted from medical records. Study end points included date of last follow-up and date of death. ORIGINAL ...Jasna Mihailović, Ljubomir Stefanović, Ranka Stanković. "Influence of Initial Treatment on the Survival and Recurrence in Patients With Differentiated Thyroid Microcarcinoma" in Clinical Nuclear Medicine, Lippincott Williams & Wilkins (2013). https://doi.org/10.1097/RLU.0b013e3182872ed2
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Substitution reactions of some novel sterically hindered monofunctional Pd(II) complexes
Reakcije supstitucije monofunkcionalnih kompleksa [(TLtBu)PdCl]+ i [Pd(tpdm)Cl]+, gde je TLtBu = 2,6-bis[(1,3-di-terc-butilimidazolin-2-imino)metil]piridin i tpdm = terpiridindimetan, sa nukleofilima kao što su: tiourea, I−, Br−, NO2−, piridin i dimetil-sulfoksid (DMSO) proučavani su u 0,1 M vodenom rastvoru NaClO4 u prisustvu 10 mM NaCl. Reakcije su sprovedene na tri različite temperature (288, 298 i 308 K) korišćenjem tehnike zaustavljenog protoka na različitim temperaturama. Reakcije supstitucije su praćene pod uslovima pseudo prvog reda sa velikim viškom nukleofila. Dobijeni rezultati pokazuju da kompleks ...... rate of the substitution. The reactivity of pyridine is almost the sameas that for DMSO. Here we have a competition between the type of donor atom and size of the entering ligand. The reactivity of the studied complexes toward selected nucle- ophiles is determined from the data of the rate constants (Table ...Aleksandar Mijatović, Jovana Bogojeski, Biljana Petrović, Živadin D. Bugarčić. "Substitution reactions of some novel sterically hindered monofunctional Pd(II) complexes" in Inorganica Chimica Acta, Elsevier BV (2011). https://doi.org/10.1016/j.ica.2011.11.031
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Vebran Web Services for Corpus Query Expansion
Ranka Stanković, Miloš Utvić (2020)U ovom radu se govori o razvoju veb usluga Vebran i njihovoj primeni u poboljšanju pretraživanja korpusa. Veb-servisi Vebran koriste se za konsultovanje spoljnih leksičkih izvora za srpski jezik (uglavnom elektronski morfološki rečnici i srpski Vordnet) i proširivanje korisničkih upita radi dobijanja relevantnijih rezultata iz srpskih korpusa.... extraction of terms and other tasks in the field of knowledge engineering (Утвић et al., 2018). The RudKor contains 344 different texts with a total size of 5.4 million words. Infotheca Vol. 19, No. 2, December 2019 101 Stanković R. and Utvić M., “Vebran Web Service . . . ”, pp. 99–118 Mining ...Ranka Stanković, Miloš Utvić. "Vebran Web Services for Corpus Query Expansion" in Infotheca, Faculty of Philology, University of Belgrade (2020). https://doi.org/10.18485/infotheca.2019.19.2.5
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Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia
This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern ...... solutions being roughly Grs45–58Adr40–52Alm2-3 (grain 1: 20 KOSTIĆ, SREĆKOVIĆ-BATOĆANIN, FILIPOV, TANČIĆ and SOKOL GEOLOGICA CARPATHICA, 2021, 72, 1, 17–25 (Ca2.949Fe2+ 0.051Mn0.000)3.000 (Al1.198Fe3+ 0.802Cr0.000Ti0.000)2.000 (Si2.991Al0.009)3.000 and grain 2: (Ca2.909Fe2+ 0.091Mn0.000)3.000 (Al0 ...
... 961Fe3+ 1.038Cr0.001Ti0.000)2.000 (Si3.012Al0.000)3.012) in the core and Adr70–97Grs2–29)Sps1 (grain 1: (Ca2.991Fe2+ 0.000Mn0.018)3.009 (Al0.588Fe3+ 1.363Cr0.000Ti0.041)1.991 (Si2.962Al0.038)3.000 and grain 2: (Ca2.968Fe2+ 0.011Mn0.021)3.000 (Al0.060Fe3+ 1.926Cr0.002Ti0.012)2.000 (Si3.015Al0.000)3 ...
... the angle of zonation margin to the imaged Fig. 4. BSE image of garnet grains with positions analyzed of EMPA and LA-ICP-MS methods. SN-310 Grain 1 Grain 2 c. 1 r. 1 c. 2 r. 2 CaO 35.61 34.51 33.98 34.06 MnO n.d. 0.26 n.d. 0.31 FeO 13.20 20.14 16.91 28.48 Al2O3 13.25 6.56 10.08 0.47 SiO2 38.70 ...Bojan Kostić, Danica Srećković-Batoćanin, Petyo Filipov, Pavle Tančić, Kristijan Sokol. "Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2021). https://doi.org/10.31577/GeolCarp.72.1.2
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Отпад из процеса сагоревања угља као сировина за добијање елемената ретких земаља
Бојан Земљак (2024)Због великог броја индустрија у којима се користе ови ресурси, глобална економија се у великој мери ослања на елементе ретких земаља. Елементи ретких земаља су есенцијална сировина — материјал за развој савремених технологија, али у односу на њихову огромну потражњу, њихово вађење је ограничено и повезано је са значајним утицајима на животну средину. Због њихове ограничене доступности, проблема који се јављају при процесима експлоатације, све више и више земаља почиње да тражи повољније могућности вађења елемената [REE] из секундарних ...... from blast furnace slag using acid baking-water leaching. RSC advances, 10 (53), p.31936-31946. [171] Seleka, B.V., 2021. The effect of particle size separation on the enrichment and recovery of rare earth elements from South African coal fly ash. [172] Kashiwakura, S., Kumagai, Y., Kubo, H. and ...
... Rohitha, S., Premasiri, R., Abeysinghe, B., Ratnayake, N. and Dissanayake, K., 2020. The story of rare earth elements (REEs): Occurrences, global distribution, genesis, geology, mineralogy and global production. Ore Geology Reviews, 122, p.103521. [4] Fernandez, V., 2017. Rare-earth elements market: ...
... resources, and challenges for resourcing future generations. Nafura/ Resources Research, 27, p.201-216. [9] Kursun Unver, I. and Terzi, M., 2018. Distribution of trace elements in coal and coal fly ash and their recovery with mineral processing practices: A review. Joural of Mining and Environment ...Бојан Земљак. Отпад из процеса сагоревања угља као сировина за добијање елемената ретких земаља, 2024
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Multiple-Criteria Decision-Making in Mine Development Planning
Sanja Bajić (2023)The Borska Reka ore deposit is an experimental location where developed methodologies have been applied. It is the largest ore body within the Bor mining complex, which has been the subject of numerous studies and analyses for more than three decades. The paper focuses on the application of FAHP and the VIKOR method to address ranking of alternatives and select the optimal mining method by means of fuzzy multicriteria optimization.Sanja Bajić. "Multiple-Criteria Decision-Making in Mine Development Planning" in Proceedings of the 5th International Underground Excavations Symposium, 5-6-7 June 2023, Istanbul, Topkapi : Dinç Ofset Mat. Rek. San. ve Tic. Ltd. Şti. (2023)
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Strain partitioning in a large intracontinental strike-slip system accommodating backarc-convex orocline formation: The Circum-Moesian Fault System of the Carpatho-Balkanides
Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga (2022)oroklini, raspodela deformacija, transkurentna kretanja, Karpato-balkanidi, Cirkum-mezijski rasedni sistem... Origin of sediments during Cretaceous continent- continent collision in the Romanian South Carpathians: preliminary constraints from 40Ar/39Ar single-grain dating of detrital white mica. Geol. Carpath. 56 (5), 375–382. Neubauer, F., Fritz, H., Genser, J., Kurz, W., Nemes, F., Wallbrecher, E., Wang, X ...
... fault-slip measurements are taken along faults that do not have large offsets (i.e., kilometres to tens of kilometres) that are comparable with the fault size (e.g., Twiss and Unruh, 1998), which contrasts with the measured kinematics along faults that have offsets reaching tens of kilometres. Kinematic ...
... lines, showing the situation before (blue) and after (green) the deformation. Black arrows show displacement variability due to the slab pull. Arrows' size indicates a relative difference in displacement magnitude. Note the increase in dis- placements westwards and northwards, created by slab pull. Grey ...Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga. "Strain partitioning in a large intracontinental strike-slip system accommodating backarc-convex orocline formation: The Circum-Moesian Fault System of the Carpatho-Balkanides" in Global and Planetary Change, Elsevier BV (2022). https://doi.org/10.1016/j.gloplacha.2021.103714
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P-T analiza RMU Bitola – krupne klase
Nemanja Dobrosavljević (2024)Cilj ovog diplomskog rada je bio ispitivanje mogućnosti i tehnologije čišćenjauglja, kao i predstaviti rezultate pliva – tone analize koja ima za cilj ocenu mogućnosti čišćenja uglja - krupnih klasa posmatranog uzorka. Da bi se ispitivanje i analiza mogućnosti čišćenja rovnog uglja u REK Bitola uspešno priveli kraju, moralo se uraditi uzorkovanje reprezentativnog uzorka iz koga se potom izdvaja prvi deo koji služi za određivanje sadržaja vlage. Pored tog dela iz uzorka se izdvaja i drugi njegov deo koji će ...ugalj, lignit, Bitola, PT analiza, pliva-tone analiza, čišćenje uglja, suvi ugalj, vlažan ugalj, pepeo, donja toplotna moć, čist ugalj, jalovina, bilans... 60; 31.5; 16; 5; 0.5; 0.25; 0.125 and 0.00 mm. After measuring the size classes, the results are shown in tabular and graphical form. In the special part of the diploma thesis, the results of the swim-ton analysis of the size class -60 + 5 mm are presented. The test was carried out using thc ...Nemanja Dobrosavljević. P-T analiza RMU Bitola – krupne klase, 2024