Претрага
341 items
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The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)
... samples from the tunnel were analyzed (in some places sampling was not possible because the amount of water decreased over time). The primary chemical composition of the groundwater (HCO3 −, Cl−, SO4 −, Na+, K+, Ca2+, Mg2+) was determined by standard analytical methods under laboratory conditions. Potentially ...
... zones of the tunnel in terms of groundwater aggressiveness and the tunnel’s structural stability were identified on the basis of the chemical composition of the groundwater sampled from the tunnel. The aggressiveness analyses were based on EU standard EN 206-1 [13], US Department of Transportation ...
... to the part of the tunnel where the concrete lining was unstable. Comprehensive tunnel investigations require the determination of the chemical composition of the groundwater that seeps into the tunnel. Hydrochemical data were used to examine their potentially aggressive properties, as well as understand ...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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Assessing Criteria Weights by the Symmetry Point of Criterion (Novel SPC Method) - Application in the Efficiency Evaluation of the Mineral Deposit Multi-Criteria Partitioning Algorithm
Information about the relative importance of each criterion or the weights of criteria can have a significant influence on the ultimate rank of alternatives. Accordingly, assessing the weights of criteria is a very important task in solving multi-criteria decision-making problems. Three methods are commonly used for assessing the weights of criteria: objective, subjective, and integrated methods. In this study, an objective approach is proposed to assess the weights of criteria, called SPC method (Symmetry Point of Criterion). This point ...Вишекритеријумско одлучивање, тежине критеријума, тачка симетрије критеријума, налазиште минерала, алгоритам, процена учинкаZoran Gligorić, Miloš Gligorić, Igor Miljanović, Suzana Lutovac, Aleksandar Milutinović. "Assessing Criteria Weights by the Symmetry Point of Criterion (Novel SPC Method) - Application in the Efficiency Evaluation of the Mineral Deposit Multi-Criteria Partitioning Algorithm" in Computer Modeling in Engineering & Sciences (2023). https://doi.org/10.32604/cmes.2023.025021
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Mineralogical and physicochemical characterization of bentonite clay from Svrljig, Serbia
Maja Milošević, Bojan Kostić (2022)... of 16%, CEC (84.5 mmol/100g) and SSA (661.8 m2*g–1) indicate a higher content of montmorillonite. Infrared spectrophotometry determined that the composition corresponds to a high content of montmoril- lonite clay with peaks at 3620 cm–1, 3420 cm–1, 1632 cm–1 and 1018 cm–1. The peaks at 1444 cm–1 and ...Maja Milošević, Bojan Kostić. "Mineralogical and physicochemical characterization of bentonite clay from Svrljig, Serbia" in Abstracts XXII International Congress of the Carpathian Balkan Geological Association (CBGA), September 7–11, 2022 Plovdiv, Bulgaria, Софиа : Геологически институт „Акад. Страшимир Димитров“ (2022)
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A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System
This paper presents a model for determining fuzzy evaluations of partial indicators of the availability of continuous systems at coal open pits using a neuro-fuzzy inference system. The system itself is a combination of fuzzy logic and artificial neural networks. The system availability is divided into partial indicators. By combining the fuzzy logic and artificial neural networks, a model is obtained that has the ability to learn and uses expert judgment for that learning. This paper deals with the ...системи, континуални системи експлоатације (роторни багер-транспортер-дробилично постројење), рударство, расположивост, меко рачунарство, фази логика, ANN, ANFISMiljan Gomilanović, Miloš Tanasijević, Saša Stepanović, Filip Miletić. "A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System" in Energies, MDPI AG (2023). https://doi.org/10.3390/en16072958
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Post Early Miocenevertical-axis clockwise rotation in the West Vardar Zone of Serbia
... of Late Cretaceous micritic limestones and one locality of flysch and seventeen sites of Oligocene-Earliest Miocene igneous rocks of different composition. In the south, ın the wider Kopaonik Mts. Area we sampled cight sites of dacitoandesites andfifteen localities of granodiorites both of Oligocene ...Vesna Lesić, Emo Marton, Vesna Cvetkov, Dragana Jovanović. "Post Early Miocenevertical-axis clockwise rotation in the West Vardar Zone of Serbia " in Environmental, Structural and Stratigraphical Evolution of the Western Carpathians, 11th ESSEWECA Conference, Geophysical Institute, Slovak Academy of Sciences Bratislava (2018)
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Savremene tendencije upravljanja mineralnim resursima u svetu i stanje u Republici Srbiji
Dragan Ignjatović, Vladimir Pavlović (2024)Strategija upravljanja mineralnim i drugim geološkim resursima na održivim i holističkim osnovama, služi kao osnova za vladinu politiku vezanu za geološka istraživanja i eksploataciju mineralnih resursa u skladu sa njenim pravnim i regulativnim obavezama. Uspostavljanje Strategije obezbeđuje osnovu za dalji razvoj i ona se realizuje u relevantnim oblastima politike kako bi se postigli postavljeni ciljevi, pri čemu se resursi moraju dobijati i koristiti na održiv način. Strategija treba transparentno da istakne mogućnosti i izazove, stvori preduslove, razjasni uloge i ...... s in the transparent process of mineral resource management and updating the Strategy in accordance with changing circumstances. The paper presents the role and importance of mineral raw materials, trends in production and consumption, modern tendencies in mineral resource management, and the situation ...
... rudarstvo, geologija. Abstract The strategy for managing mineral and other geological resources on sustainable and holistic foundations serves as the basis for government policy related to geological research and the exploitation of mineral resources, in accordance with its legal and regulatory ...
... Zlatibor, 9-12 October 2024 SAVREMENE TENDENCIJE UPRAVLJANJA MINERALNIM RESURSIMA U SVETU I STANJE U REPUBLICI SRBIJI CONTEMPORATY TRENDS IN MINERAL RESOURCE MANAGEMENT IN THE WORLD AND THE SITUATION IN THE REPUBLIC OF SERBIA Ignjatović D.!, Pavlović V Apstrakt Strategija upravljanja mineralnim ...Dragan Ignjatović, Vladimir Pavlović . "Savremene tendencije upravljanja mineralnim resursima u svetu i stanje u Republici Srbiji" in XVI Međunarodna rudarska konferencija OMC 2024, Jugoslovenski komitet za površinsku eksploataciju (2024)
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XRD dertermination od hydrothermal phases related to epithermal mineralization in the Čukaru Peki deposit
Dragana Bosić, Vladica Cvetković, Miodrag Banješević, Kristina Šarić. "XRD dertermination od hydrothermal phases related to epithermal mineralization in the Čukaru Peki deposit" in V Congress of Geologists of Republic of Macedonia ": “Geology in a changing world”, Makedonsko geološko društvo (2024)
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Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders
Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica (2023)... was estimated by the photocatalytic degradation of crystal violet in aqueous solution. A simple and effective . method for controlling: the composition and morphology of Cop.Hoo,, MoOu is presented in this paper, as well as a potentially new approach in the methodology of inorganic synthesis ...Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica. "Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders" in Programme and the book of abstracts 7th Conference of The Serbian Society for Ceramic Materials 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia , Beograd : Institut za multidisciplinarna istraživanja (2023)
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Numerical modelling of the roughly simultaneous emplacement of two distinct ophiolite belts
Nikola Stanković, Vesna Cvetkov, Vladica Cvetković. "Numerical modelling of the roughly simultaneous emplacement of two distinct ophiolite belts" in 5th Congress Geologists of the Republic of North Macedonia, Ohrid, 28-29. 10. 2024, Македонско геолошко друштво (2024)
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Prvi nalazi repatih vodozemaca (Urodela) u pleistocenskoj pećinskoj fauni Srbije; još jedna kockica u slagalici
Fosilna fauna pleistocenskih pećina odslikava sastav faune njihove okoline. Najčešće se u njima naleze ostaci krupnih sisara ledenog doba koji su je koristili kao stanište. Uz njih česti su i ostaci drugih sitnih kičmenjaka kao što su sitni sisari, ribe, vodozemci, gmizavci i ptice. Ostaci sitnih kičmenjaka u većini slučajeva u pećinu dospevaju kao plen grabljivica (ptice i sisari) ali je manji broj njih pećinu koristio i kao sklonište ili stanište. U proučavanje fluktuacija pleistocenske klime sve češće se ...... Tarragona, Spain Key words: Urodela, Pleistocene, SaZamandra, Triturus karelinii Abstract: The fossil fauna of the Pleistocene caves reflects the composition of the fauna of their surroundings. Most often, they contain the remains of large Ice Age mammals that used it as a habitat. Along with them ...
... up in the cave as prey for predators (birds and mammals), but a smaller number of them also used the cave as a shelter or habitat. Data on the composition of herpetofauna (amphibians and reptiles) are increasingly included in the study of Pleistocene climate fluctuations, which indirectly indicate ...Dragana Đurić, Katarina Bogićević, Draženko Nenadić, Mihajlo Jovanović, Aleksandra Savković. "Prvi nalazi repatih vodozemaca (Urodela) u pleistocenskoj pećinskoj fauni Srbije; još jedna kockica u slagalici" in Zbornik sažetaka III Kongresa geologa Bosne i Hercegovine sa međunarodnim učešćem. Neum, 21.-23. septembar/rujan 2023, Ilidža : Udruženje geologa Bosne i Hercegovine (2023)
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Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders
Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić (2023)... crystal structure and magnetic properties of CuO nanopowders. For the synthesis of nanoparticles of copper-silver oxides solid solutions. with the composition Cu,,Ag,O (x=0.01-0.05), a self- propagating synthesis was applied at room temperature, during which a successful reaction between metal nitrate ...Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić. "Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders" in Programme ; and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia , Beograd : Institut za multidisciplinarna istraživanja, (2023)
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Characterization and Environmental Evaluation of Recycled Aggregates from Construction and Demolition Waste in Belgrade City Area (Serbia)
Filip Abramović, Miroslav Popović, Vladimir Simić, Vesna Matović, Radmila Šerović. "Characterization and Environmental Evaluation of Recycled Aggregates from Construction and Demolition Waste in Belgrade City Area (Serbia)" in Materials, MDPI AG (2024). https://doi.org/10.3390/ma17040820
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Crystal structure of K3EuSi2O7
alkalni silikati elemenata retkih zemalja, kristalna struktura, sinteza metodom fluksa, rendgenska difrakcija na monokristalu... in cation radii among the lanthanides allow extensive cation substitutions. Several ternary potassium–REE silicates with the stoichiometric composition K3REESi2O7 which crystallize in the space groups P63/mcm and P63/mmc have been described so far: K3EuSi2O7, 11 K3NdSi2O7, 12 K3REESi2O7 (REE ...
... the existence of this phase, however, they reported only unit cell parameters (a = 9.98(1), c = 14.44(2) Å), space group (P63/mcm), chemical composition and described the morphology of crystals. Myers16 outlined the successful synthesis of K3REESi2O7 (REE = Eu, Y, Sc), but without any peer-reviewed ...Sabina Kovač, Predrag Dabić, Aleksandar Kremenović. "Crystal structure of K3EuSi2O7" in Journal of the Serbian Chemical Society, National Library of Serbia (2021). https://doi.org/10.2298/JSC210218026K
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Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling
Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeBranislav Petrović, Veljko Marinović, Zoran Stevanović. "Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling" in Environmental Earth Sciences, Springer Science and Business Media LLC (2023). https://doi.org/10.1007/s12665-023-10911-5
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Adaptive neuro-fuzzy prediction of operation of the bucket wheel drive based on wear of cutting elements
The capacity of the rotor excavator depends largely on the operation of the subsystem for digging. There is a great contribution to the correct and sharp teeth when the capacity is the highest. In the function of time, the teeth become clogged due to abrasive wear, or changes in their geometric shape. To analyze the bucket wheel drive in depend on wear of the cutting elements in this study adaptive neuro fuzzy inference system (ANFIS) approach was implemented. ANFIS ...Filip Miletić, Predrag D. Jovančić, Milos Milovančević, Dragan Ignjatović. "Adaptive neuro-fuzzy prediction of operation of the bucket wheel drive based on wear of cutting elements" in Advances in Engineering Software, Elsevier BV (2020). https://doi.org/10.1016/j.advengsoft.2020.102824
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New data on the age of an Upper Cretaceous clastic-carbonate succession in Brežđe (Western Serbia)
Nevenka Đerić, Nataša Gerzina (2014)... Santonian and up- per Santonian; BRAGINA et al., 2014). A Santonian age is established for the studied radiolarians in Brežđe, but the taxonomic composition of the assemblages does not allow any further division. Geographically, the nearest similar radiolarian assem- blages, alttough younger (Campanian) ...
... MARKOVIĆ, O. & ANĐELKOVIĆ, M. (1953): Gcološki sastav i tek- tonika šire okolinc sela Osečenice, Brežđa i Struganika — Zapadna Srbija [Geo/ogical composition and tectonics of wider surroundings of villages Osečenica, Brežde and Struganik (Hest Serbia — in Ser- bian].- Zbornik radova SAN, 33, Geol. ...Nevenka Đerić, Nataša Gerzina. "New data on the age of an Upper Cretaceous clastic-carbonate succession in Brežđe (Western Serbia)" in Geologia Croatica (2014)
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Hypogene speleogenesis related to porphyry magmatic intrusions and its influence on subsequent karst evolution in the Peruvian high Andes
Alexander Klimchouk, David Evans, Sasa Milanovic, Cristian Bittencourt, Mauro Sanchez, F. Carlos Aguirre (2022)Alexander Klimchouk, David Evans, Sasa Milanovic, Cristian Bittencourt, Mauro Sanchez, F. Carlos Aguirre. "Hypogene speleogenesis related to porphyry magmatic intrusions and its influence on subsequent karst evolution in the Peruvian high Andes" in Geomorphology, Elsevier BV (2022). https://doi.org/10.1016/j.geomorph.2022.108488
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Prezentacija projekta "Zaštita ležišta mineralnih sirovina kao osnova sigurnog snabdevanja mineralnim sirovinama u Evropi (safemin4europe)
Vladimir Simić, Rade Jelenković, Dragana Životić, Zoran Miladinović, Stefan Petrović, Marija Petrović (2022)Harmonični ekonomski razvoj svake zemlje u velikoj meri zavisi od dostupnosti sirovina, naročito mineralnih sirovina. Obezbeđivanje njihove dovoljne količine na tržištu (ponude) je od vitalnog značaja za funkcionisanje različitih industrijskih grana koje proizvode različitu robu i opremu neophodnu za ispunjavanje životnih potreba stanovništva kao i za efikasnu poljoprivredu. Mineralne sirovine su neophodne za podršku ekonomskim aktivnostima na lokalnom, regionalnom, nacionalnom i međunarodnom nivou. Ovo su, istorijski, prve sirovine koje su počele da se koriste iz domaćih izvora, i u ...Vladimir Simić, Rade Jelenković, Dragana Životić, Zoran Miladinović, Stefan Petrović, Marija Petrović. "Prezentacija projekta "Zaštita ležišta mineralnih sirovina kao osnova sigurnog snabdevanja mineralnim sirovinama u Evropi (safemin4europe)" in 18. Kongres geologa Srbije "Geologija rešava probleme", Divčibare, 01-04 jun 2022., Srpsko geološko društvo (2022)
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A survey of greenhouse gases production in central European lignites
Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska (2021)... , 2020. Microbial methane for- mation from different lithotypes of miocene lignites from the Konin Basin, Poland: geochemistry of the gases and composition of the microbial communities. Int. J. Coal Geol. 229. https://doi.org/10.1016/j.coal.2020.103558. Buendia, C., Kranjc, K., Fukuda, J., Osako, N ...
... Germany. Geochim. Cosmochim. Acta 65, 3505–3527. https://doi.org/10.1016/S0016-7037 (01)00693-7. Pawelec, S., Bielowicz, B., 2016. Petrographic composition of lignite from the Szczerców deposit, Polish Lowlands. Contemp. Trends Geosci. 5, 92–103. https://doi.org/10. 1515/ctg-2016-0007. Piwocki, M., ...
... Robbins, S.J., Evans, P.N., Esterle, J.S., Golding, S.D., Tyson, G.W., 2016. The effect of coal rank on biogenic methane potential and microbial composition. Int. J. Coal Geol. 154–155, 205–212. https://doi.org/10.1016/j.coal.2016.01.001. Saunois, M., Stavert, A.R., Poulter, B., Bousquet, P., Canadell ...Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska. "A survey of greenhouse gases production in central European lignites" in Science of The Total Environment, Elsevier (2021). https://doi.org/10.1016/j.scitotenv.2021.149551
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Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications
The Vardar-Tethyan mega-suture between the Eurasian and Adria (Gondwana) margins comprises remnants of oceanic lithosphere of Neotethys and distal parts of the adjacent continental margins including unconformable Late Cretaceous sedimentary cover and Cenozoic igneous rocks of post-obduction age. This study provides kinematic constraints for displacements and rotations affecting the Serbian part of the West Vardar and Jadar-Kopaonik units after the closure of the Neotethyan (= Sava) Ocean. The targets of the paleomagnetic research were Late Cretaceous sediments representing an ...... quarzlatitic composition. Curie- point measurements identified magnetite (Supplementary Fig. 2) and the magnetic softness of the NRM (Fig. 6) corroborated that the carrier of the remanence was indeed a magnetite-type mineral in the studied rocks, irrespective of the great variety in composition. The AMS ...
... Željin and Kremići, Fig. 3; Schefer et al. 2011). In the Željin pluton and more prominently, in the Drenje massif, enclaves of more mafic composition are common. East of the Željin-Kopaonik anticlinorium weakly metamorphosed Senonian flysch with large olistoliths unconformably overlies the ...
... Drenje, Zeljin and Kremiéi, Fig. 3; Schefer et al. 2011). In the Zeljin pluton and more prominently, in the Drenje massif, enclaves of more mafic composition are common. East of the Zeljin-Kopaonik anticlinorium weakly metamorphosed Senonian flysch with large olistoliths unconformably overlies the metamorphic ...Vesna Lesić, Emo Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov. "Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications" in Swiss Journal of Geosciences, Basel : Springer International Publishing (2018). https://doi.org/10.1007/s00015-018-0321-8