Претрага
1766 items
-
Definition of Circulation Conditions and Groundwater Genesis of the Complex Krupaja Hydrogeological Karst System (Eastern Serbia)
Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment, Geography, Planning and Development, Building and Construction... from the fairly uniform water temperatures and other physico-chemical parameters observed in the Krupaja Spring, groundwater in all seasons. The tritium content in the borehole water (Table 4), as well as in the thermal spring groundwater, is significantly lower, amounting to 3.9 TJ and only 1.7 ...
... 100 pMC) 14 _ C(pMC) (H—) 1 Sigma in Groundwater %o (613C in Water and 619C in Host Rock Has Been Considered) Krupaja Spring, 74.95 0.21 —8.71 Modern Borehole B-1 52.05 0.18 —5.91 Modern Krupaja thermal spring, 16.89 0.09 -3.11 3990 The content of C in borehole B-1 water is 52.05 pMC (Table ...
... Introduction Karst groundwater represents one of the most important water supply resources in the world. About 20–25% of the world's population, including, that in Serbia, uses the water accumulated in karstic aquifers [1-3]. The goal of karst groundwater research, especially the speleogenesis ...Ljiljana Vasić, Saša Milanović, Tina Dašić. "Definition of Circulation Conditions and Groundwater Genesis of the Complex Krupaja Hydrogeological Karst System (Eastern Serbia)" in Sustainability, MDPI AG (2023). https://doi.org/10.3390/su151411146
-
Cytotoxic activity of tetradentate Schiff Base Copper(II) complexes
Istraživanje kompleksa bakra kao potencijalnih antikancerogenih agenasa nudi ohrabrujuće perspektive u odnosu na komplekse platine (II) računajući na smanjenu toksičnost, novi mehanizam delovanja, različit spektar aktivnosti i perspektivu neunakrsne rezistencije. Kompleksi Šifovih baza bakra(II) koji sadrže tetradentatne ligande acac2en tipa (acac2en (1); tfacac2en (3), acactfacacen (4), acacphacacen (6)) pokazali su važnu antioksidativnu aktivnost, visok potencijal za interakciju sa HSA i DNK, u prethodnim studijama. Zbog toga je bilo interesantno ispitati i uporediti potencijal antikancerogene aktivnosti in vitro, u odnosu ...Nevenka Gligorijević, Aleksandar Mijatović, Sandra Aranđelović, Rada Baošić . "Cytotoxic activity of tetradentate Schiff Base Copper(II) complexes" in The European Association for Cancer Research 2021 , eacr2021.org/sponsorship (2021)
-
Characterization of Natural Clay from Bogovina (Serbia) and Possible Utilization in Sorption of the Herbicides
... arrangements in the interlayer space, from monolayer to paraffin orientation. On the other hand, montmorillonite modified with PTMA complex exhibited monolayer arrangement of cations on the surface of montmorillonite in such a manner that the cations acted as pillars in interlayer space ...
... concentrations (non-specific adsorption). In the case of montmorillonites modified both by the HDTMA and PTMA complexes, Freundlich coefficients showed an increment in S-metolachlor sorption with increasing the content of the organic complex used in the montmorillonite modification. ...
... Utilization in Sorption of the Herbicides Lazar Kaluđerović, Zorica Tomić, Rada Đurović-Pejčev, Maja Milošević Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Characterization of Natural Clay from Bogovina (Serbia) and Possible Utilization in Sorption of the ...Lazar Kaluđerović, Zorica Tomić, Rada Đurović-Pejčev, Maja Milošević. "Characterization of Natural Clay from Bogovina (Serbia) and Possible Utilization in Sorption of the Herbicides" in Eurosoil2020, online event 2021, Eurosoil, Frontiers Abstract Book (2021)
-
Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit
Sanja Bajić, Dragoljub Bajić, Branko Glušćević, Radmila Gaćina. "Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit" in 9th International Conference Mining and Environmental protection MEP, 24 – 27 May 2023, Sokobanja, Serbia , Belgrade : University of Belgrade-Faculty of mining and geology (2023)
-
Part of Speech Tagging for Serbian language using Natural Language Toolkit
Ranka Stanković, Boro Milovanović (2020)Dok se razvijaju složeni algoritmi za NLP (obrada prirodnog jezika), osnovni zadaci kao što je označavanje ostaju veoma važni i još uvek izazovni. NLTK (Natural Language Toolkit) je moćna Python biblioteka za razvoj programa zasnovanih na NLP-u. Pokušavamo da iskoristimo ovu biblioteku za kreiranje PoS (vrsta reči) oznake za savremeni srpski jezik. Jedanaest različitih modela je kreirano korišćenjem NLTK API-ja za označavanje. Najbolji modeli se transformišu sa Brill tagerom da bi se poboljšala tačnost. Obučili smo modele na označenom ...... training one of the taggers. Introducing the dataset and the tagset will be done in the Section 2. The creation of multiple taggers is presented in Section 3. The results will be shown in Section 4 and briefly discussed in Section 5. We will conclude with Section 6. II. RESOURCES An automated tagger ...
... 5 doba N:n NOUN doba 5 . SENT PUNCT . There are 10,890 sentences in the data set, labeled by the SentenceId, a first value in the row. Actual word that is tagged is contained in the Token column. Its respective Lemma is in the last column. There are two PoS tags for every token, originated ...
... Machine Learning; Neural Network. I. INTRODUCTION In the last couple of years, a big advancement in the field of Natural Language Processing has occurred. There are state-of- the-art language models that perform exceptionally in various language tasks [1-3]. The applications are getting broader ...Ranka Stanković, Boro Milovanović. "Part of Speech Tagging for Serbian language using Natural Language Toolkit" in 7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020, Academic Mind, Belgrade (2020)
-
Replica of the “Great Triangle Gold Nugget” Belonging to Belgrade University Collection, Gilded or Not?
... standards. Historic background The gold nugget was mined in the Southern Ural, in the gold-bearing sands of the Tachkou-Targanka river in 1842. At the time of its invention, the whole area of Zlatoust was the most significant in the world with its gold mines (JONES, 1844). Today, this unique ...
... unique native gold nugget adorns showcases with numerous unique exhibits in the Diamond Fund display in Moscow, Russia, Kremlin. The gold nugget replica, which is kept today in the Collection of Rocks and Minerals, is part of old and numerous mineral collection which numbered 1525 samples donated ...
... School of Belgrade (precursor of Belgrade University) in 1899 (UROŠEVIĆ, 1899). The original accompanying catalogue, written in French and signed by the honoured mining engineer M. Melnikoff, conservator of the Mining Institute Museum in St. Petersburg, contains details of its location of finding ...Alena Zdravković, Maja Milošević, Ivana Jelić. "Replica of the “Great Triangle Gold Nugget” Belonging to Belgrade University Collection, Gilded or Not?" in 8th Mineral Sciences in the Carpathians Conference, Acta Mineralogica-Petrographica, Miskolc, Hungary, Department of Mineralogy, Geochemistry and Petrology, University of Szeged, Szeged, Hungary (2021)
-
FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina
... carbonate minerals in the sample (Jović- Jovičić et al., 2008). Much better band position accuracy, as well as a sharper spectrum image can be obtained in the ATR 2nd derivative spectrum. A broad band at 3447 cm ! in the spectrum of the Na-montmorillonite obtained using KBr technique, in ATR spectrum ...
... herbicides are causing a concern due to their increasing presence in soil, groundwater and surface water. Numerous methods have been developed in order to reduce herbicide mobility and protect natural water resources. The results presented in this paper show the interaction of herbicide S- metolachlor ...
... vibrations is generally the main difference in the spectrum of HDTMA modified montmorillonite in comparison with the spectrum of inorganically modified montmorillonite. The wavenumber, intensity and width of these bands are sensitive to conformation in hydrocarbon chains. After the organic modification ...Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević. "FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina" in Book of Proceedings / 3rd International and 15th National Congress Soils for Future Under Global Challenges, 21-24 September 2021 Sokobanja, Serbia , Belgrade : Serbian Society of Soil Science (2021)
-
Uniaxial compressive strength test before and after standard fire test on rock mass
Stefan Mitrović, Goran Todorović, Bojan Kostić, Milica Mirković-Marjanović, Nikola Božović, Marija Krstić, Aleksandar Erić, Radovan Gospavić, Snežana Ilić, Aleksandar Kijanović (2022)... chlorite is also present. These mica appear in sheets from 0.05 to 0.6 mm in size. They are often banded and deformed during the diagenesis process. The iron is presented in cemnet with a clayey component, and fine-grained quartz which can be seen in some parts. The rock color (black) is most likely a ...
... ics. Heat of environment can affect structure of rock mass, which results in a change in uniaxial compressive strength of rock after fire. Uniaxial compressive strength is an important parameter of rock material in the field of rock mechanics. It is the basic parameter for determining strength ...
... a consequence of the presence of divalent (ferro) iron. In Figure 1 is shown a microscopic image of rock sample. Figure 1. Microscopic image of a rock sample; picture left in plane polarized light, picture right in cross polarized light 2.2. Material sampling Two groups of 6 ...Stefan Mitrović, Goran Todorović, Bojan Kostić, Milica Mirković-Marjanović, Nikola Božović, Marija Krstić, Aleksandar Erić, Radovan Gospavić, Snežana Ilić, Aleksandar Kijanović. "Uniaxial compressive strength test before and after standard fire test on rock mass" in Fifth symposium of the Macedonian Association for Geotechnics, Ohrid, North Macedonia, 23-25. 06. 2022, Macedonian Association for Geotechnics (2022)
-
Development of integrated fuzzy model for mine management optimization
Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić (2023)... Int. J. Prod. Econ., 97, 89-117. | CHEN H. (2006) Applications of Fuzzy Logic in Data Mining Process. In: Bai Y., Zhuang H., Wang D. (eds), Advanced Fuzzy Logic Technologies in Industrial Ap- ications, Advances in Industrial Control, London, Springer, DOT: 10.1007,978-1- 84628-469-4 _17. BAJIĆ ...
... interesting studies addressing, the fuzzy logic concept in mining; are reported in | Š}, 'The integrated fuzzy model for mining: technology optimization was applied o a real case study, bauxite deposit L-29C of the Bešpelj mine near Jajce in the Republic of Serbia, Bosnia and Herzegovina, which ...
... mining, in progress. / PA la 20 96 andabandoned - Open-pit mining, in progress O7 - 0OČ andabandoned Fig. 1. Geological map of the study area (modified [9]) Methodology. As mentioned above, the FAHP approach was followed to arrive at a decision on the optimal mining technology in the case ...Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić. "Development of integrated fuzzy model for mine management optimization" in Comptes rendus de l'Académie Bulgare des Sciences (2023)
-
Hydrochemical impact of the hydraulic tunnel on groundwater in the complex aquifer system in Pirot, Serbia
Hidrogeohemijski procesi, hidrohemijske promene, karstna izdan, tunel pod pritiskom, multivarijantne statističke analizeMarina Ćuk, Igor Jemcov, Ana Mladenović, Marina Čokorilo Ilić. "Hydrochemical impact of the hydraulic tunnel on groundwater in the complex aquifer system in Pirot, Serbia" in Carbonates and Evaporites, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s13146-020-00563-y
-
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)Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević. "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" in Marine and Petroleum Geology, Elsevier BV (2020). https://doi.org/10.1016/j.marpetgeo.2020.104252
-
Highway construction in fossil landslides zones – Lessons learned from the Grdelica Gorge, Serbia
Landslides are common on roads, which directly affect the flow of traffic and the connection and functioning of the population in surrounding area. Therefore, it is necessary to investigate them in the shortest possible time and to determine and carry out the remediation solution. Functionality of the state roads is immensely important so it is necessary to ensure that the traffic is maintained during remediation activities. Therefore, design solutions and remediation execution technology should be adapted to these requirements. ...Biljana Abolmasov, Marinos Skempas, Svetozar Milenković, Janko Radovanović, Miloš Marjanović. "Highway construction in fossil landslides zones – Lessons learned from the Grdelica Gorge, Serbia" in 5th Regional symposium on landslides in Adriatic–Balkan Region, 23-26 March 2022, Faculty of Civil Engineering, University of Rijeka and Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb (2022)
-
Towards resolving Cretaceous to Miocene kinematics of the Adria-Europe contact zone in reconstructions: Inferences from a structural study in a critical Dinarides area
One key element in the current debate analysing the Central Mediterranean evolution is the Cretaceous structure and kinematics of the present-day oroclinal bent contact between Adria-and Europe-derived continental units in the Dinarides, interpreted in different tectonic reconstructions as a subduction-related thrust system or a large-scale strike-slip fault zone. We provide a solution to the debate by a structural and kinematic study in a key area located in central Serbia along the Europe–Adria orogenic suture of the Sava Zone. The ...Uroš Stojadinović, Nemanja Krstekanić, Liviu Matenco, Tamara Bogdanović. "Towards resolving Cretaceous to Miocene kinematics of the Adria-Europe contact zone in reconstructions: Inferences from a structural study in a critical Dinarides area" in Terra Nova, Wiley (2022). https://doi.org/10.1111/ter.12618
-
GNSS Time Series as a Tool for Seismic Activity Analysis Related to Infrastructure Utilities
Sanja Tucikešić, Ankica Milinković, Branko Božić, Ivana Vasiljević, Mladen Slijepčević . "GNSS Time Series as a Tool for Seismic Activity Analysis Related to Infrastructure Utilities" in Contributions to International Conferences on Engineering Surveying. Springer Proceedings in Earth and Environmental Sciences, Dubrovnik, Croatia, October 22-23, 2020, Springer, Cham (2021). https://doi.org/10.1007/978-3-030-51953-7_21
-
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)
-
EUROLAN 2021: Introduction to Linked Data for Linguistics Online Training School
Prva škola za obuku polaznika koju je organizovala COST akcija NexusLinguarum održana je od 8. do 12. februara 2021. godine sa ciljem da studenti, istraživači i stručnjaci nauče osnove lingvističke nauke o podacima. Tokom obuke polaznici su se upoznali sa širokim spektrom tema: od semantičkog veba, RDF -a i ontologija, do modeliranja i pretraživanja jezičkih podataka pomoću najsavremenijih ontoloških modela i alata. Škola je održana u okviru serije letnjih škola EUROLAN-a i organizovalo ju je virtuelno (onlajn) nekoliko instituta; ...nauka o lingvističkim podacima, povezani podaci u lingvistici, jezički podaci, EUROLAN, NexusLinguarum, COST akcija, škola za obuku... Julia, Jorge Gracia, and Elena Montiel-Ponsoda. 2017. “Towards a Module for Lexicography in OntoLex.” In LDK Workshops, 74–84. Chiarcos, Christian. 2012. “Interoperability of corpora and annotations.” In Linked Data in Linguistics, 161–179. Springer. Chiarcos, Christian, Maxim Ionov, Jesse de Does, Katrien ...
... data.” In International Semantic Web Conference, 98–113. Springer. Jokić, Danka, Ranka Stanković, Cvetana Krstev, and Branislava Šandrih. 2021. “A Twitter Corpus and lexicon for abusive speech detection in Serbian.” In Proceedings of the 2021 Language, Data and Knowledge (LDK), 1-3 September in Zaragoza ...
... hosted vir- tually (online) by several institutions: the Ro- manian Academy, the Research Institute for Artificial Intelligence in Bucharest and the In- stitute of Computer Science in Ias , i, as well as the “Alexandru Ioan Cuza” University of Ias , i, Romania. The training school was attended by 82 pa ...Milan Dojchinovski, Julia Bosque Gil, Jorge Gracia, Ranka Stanković. "EUROLAN 2021: Introduction to Linked Data for Linguistics Online Training School" in Infotheca, Faculty of Philology, University of Belgrade (2021). https://doi.org/10.18485/infotheca.2021.21.1.7
-
Why classical sequence stratigraphy doesn't work in Pannonian basin?
Dejan Radivojević (2018)... nfirmed in all half‐ graben and could be related to the moment of initial rifting in certain graben. Essentially it represents initial rifting systems tract formed in continental/alluvial environment (Prosser, 1993). From those reasons, in case that rifting process started in moment ...
... Classical sequence stratigraphy has been developed in passive‐margin settings (e.g., Vail et al., 1977; van Wagoner, 1990), where the rates and variability of tectonic subsidence is minor in comparison with active rift basins or in back‐arc areas (e.g., Prosser, 1993; Nottvedt et al., ...
... resent only in deep parts of the basin. The reasons for their absence are that graben haven't reach its final size in the moment of deposition and the subsidence rate is much lower than aggradation. From three rift climax systems tract the early one usually has thinnest sediments. In big grabens, ...Dejan Radivojević. "Why classical sequence stratigraphy doesn't work in Pannonian basin?" in 17th Serbian Geological Congress, Vrnjačka Banja, 17-20 maj 2018, Srpsko geološko društvo (2018)
-
Formative evaluation of e-learning projects with the logical framework approach
... Outcomes are the specific changes in behavior, in knowledge, in skills, in the state and level of activity/operation of the project target (i.e. participants, beneficiaries, companies, processes, etc.). Outcomes reveal in the short-term (from 1 to 3 years), or in the long- term (over a period ...
... becomes more and more interesting in light of the large economic investments in projects and programs, and the difficulty of assessing the genuine and effective economic and social returns. This issue involves the E-Learning sector, as many others. In general, and as a first approximation ...
... results can be distinguished in fact, in: outputs, outcomes and impacts [4][10][11][12]. Outputs are the products and/or services carried out from the project implementation. Outcomes and impacts are both effects of the output, that are observable along the time in the project environment or ...Roberto Linzalone, Giovani Schiuma, Ivan Obradović, Ranka Stanković. "Formative evaluation of e-learning projects with the logical framework approach" in The Sixth International Conference on e-Learning (eLearning-2015), September 2015, Belgrade, Serbia, Belgrade Metropolitan Univesity (2015)
-
Results of Recent Monitoring Activities on Landslide Umka, Belgrade, Serbia—IPL 181
Biljana Abolmasov, Uroš Đurić, Jovan Popović, Marko Pejić, Mileva Samardžić Petrović, Nenad Brodić (2021)... may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Cover illustration: Landslides in Hiroshima, Japan after the heavy rainfall in July 2018 (International Consortium on Landslides. All Rights Reserved) This Springer ...
... baseline stable points are shown in Fig. 2. After processing, 59/62 points obtained from initial measurement were validated and they were used as “zero” measurement for further analysis. Two additional sequences of object points survey were conducted—in November 2018 and in March 2019. The main idea was ...
... acquisitions by acquisition. In the field of landslide monitoring the basic principles and possibility of using multi-temporal PSInSAR data were discussed in Tofani et al. (2013), Mateos et al. (2017), Casagli et al. (2017), Solari et al. (2019), Raspini et al. (2019). In this research PSInSAR technique ...Biljana Abolmasov, Uroš Đurić, Jovan Popović, Marko Pejić, Mileva Samardžić Petrović, Nenad Brodić. "Results of Recent Monitoring Activities on Landslide Umka, Belgrade, Serbia—IPL 181" in Understanding and Reducing Landslide Disaster Risk. WLF 2020. ICL Contribution to Landslide Disaster Risk Reduction, Springer, Cham (2021). https://doi.org/10.1007/978-3-030-60196-6_14
-
The Content of Toxic Metals in Agricultural Produce near a Coal Mine: Case Study KCB in Lazarevac, Serbia
Праћење и анализа концентрација токсичних метала (олово и кадмијум) у земљишту и усевима указују на то да пољопривредно земљиште у Србији углавном није загађено, а квалитет земљишта је природно добар. Због тога су таква земљишта погодна за органску пољопривреду. Сви уочени случајеви контаминације токсичним металима су само локалне природе, а резултат су ђубрива и пестицида, комуналног отпада, издувних гасова, оближњих производних објеката, топионица, рудника, јаловишта итд. Локације овог типа морају бити редовно прати и процењује статус земљишта и усева. ...Ana Koprivica, Čedomir Beljić, Boris Vakanjac, Vesna Ristić Vakanjac, Marina Čokorilo Ilić. "The Content of Toxic Metals in Agricultural Produce near a Coal Mine: Case Study KCB in Lazarevac, Serbia" in Minerals, MDPI AG (2018). https://doi.org/10.3390/min8040131