Претрага
529 items
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Hydraulic impact of pressure transients from water conveyance tunnel on the complex hydrogeological system: A case study HPP
Tunel pod pritiskom, Unutrašnji pijezometri, Tranzijenti pritiska, Karstna izdan, Pukotinska izdan, Hidraulički odziv... hydropower plant (HPP) systems, traversing diverse rock masses, pose challenges for long-term operation. The study's main goal was to investigate how hydraulic transients originating from the headrace tunnel transfer through the concrete lining and manifest in surrounding aquifer systems. In this experimental ...Igor Jemcov, Maja Todorović, Aleksandar Jemcov, Marina Ćuk Đurović. "Hydraulic impact of pressure transients from water conveyance tunnel on the complex hydrogeological system: A case study HPP" in Journal of Hydrology, Pirot, 2024, Elsevier BV (2024). https://doi.org/10.1016/j.jhydrol.2024.132068
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Facies analyses, biostratigraphy and radiometric dating of the Lower-Middle Miocene succession near Zajecar (Dacian basin, eastern Serbia)
Ljupko Rundić, Nebojsa Vasić, Miodrag Banješević, Dejan Prelević, Violeta Gajić, Bojan Kostić, Jelena Stefanović (2020)Седиментна сукцесија између доњег и средњег миоцена и складан тј. дискордантан однос између језерско-континенталних наслага (нпр. DLS, SLS) и баденских морских седимената представља једну од занимљивих тема. У овом раду смо проучавали пет истражних бушотина (источна Србија) и анализирали главни фацијални образац, биостратиграфске карактеристике миоценске сукцесије и применили U-Pb радиометријско датирање вулканских туфова интерстратификованих у седиментној серији са слојевима угља (бушотина NRKR-17002). Добиjeна је конкордија старост од 16,9 ± 0,2 милиона година за сва анализирана зрнца циркона без наследних ...Ljupko Rundić, Nebojsa Vasić, Miodrag Banješević, Dejan Prelević, Violeta Gajić, Bojan Kostić, Jelena Stefanović. "Facies analyses, biostratigraphy and radiometric dating of the Lower-Middle Miocene succession near Zajecar (Dacian basin, eastern Serbia)" in Annales geologiques de la Peninsule balkanique, National Library of Serbia (2020). https://doi.org/10.2298/GABP1902013R
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Transboundary groundwater resources of Serbia - present status and future needs for sustainable management
Republic of Serbia is located at the crossroads of Southeast and Central Europe and belongs to the Central Balkans. With its 88,360 km2, Serbia is one of the larger countries of the Balkan Peninsula. It borders 8 countries and has at least one transboundary aquifer (TBA) with each of them. According to evaluation conducted for UNECE in 2008, Serbia has a total of 17 TBAs, out of which 15 are shared with one neighboring country, while two aquifers are shared with two or three ...Veljko Marinović, Branislav Petrović, Zoran Stevanović. "Transboundary groundwater resources of Serbia - present status and future needs for sustainable management" in Second International UNESCO Conference on Transboundary Aquifers, “ISARM2021: Challenges and the way forward”, Paris 2021, United Nations Educational, Scientific and Cultural Organization, 7, place de Fontenoy, 75352 Paris 07 SP, France (2021)
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Determining seismic hazard in slowly deforming region: Can we gather enough information from karst caves?
Ana Mladenović, Jelena Ćalić (2021)Methods to determine seismic hazard in any region vary depending on the regional seismicity, but can be roughly grouped into two main groups: one based on probabilistic methods that use data about known seismicity in the region, and another, which is based on data related to the faulting processes and determination of seismically active faults. Both groups of methods are relatively good for seismically active regions. However, in regions of low seismic activity and slow deformations, there is neither ...Ana Mladenović, Jelena Ćalić. "Determining seismic hazard in slowly deforming region: Can we gather enough information from karst caves?" in EGU General Assembly 2021, European Geosciences Union (2021). https://doi.org/10.5194/egusphere-egu21-8723
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Утицај соларне активности на здравље човека
... Conditions on Biological Systems: Some Results of Studies Conducted in the Azerbaijan National Academy of Sciences. Sun and Geosphere, 2(1), 48-52. [7] Babayev, E.S., Crosby, N.B. et al. (2012). Potential effects of solar and geomagnetic variability on terrestrial biological systems. Research Signpost ...
... human brain. Proc. Space Weather Workshop, 17-19. [4] Babayev, E.S. (2006). Space weather Influence on Technological, Biological and Ecological Systems: Some Major Results of Complex Investigations Conducted in Azerbaijan. Sun and Geosphere, 1(1), 17-22. [5] Babayev, E.S. (2008) Solar and Geomagnetic ...Каролина Ђукић, Весна Цветков, Весна Дамњановић. "Утицај соларне активности на здравље човека" in VII Меморијални научни скуп из заштите животне средине доцент др Милена Далмација Нови Сад, 01-02. април 2019, Природно-математички факултет, Департман за хемију, биохемију и заштиту животне средине (2019)
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Development of integrated fuzzy model for mine management optimization
Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić (2023)... working: areas required supporting, in places of well- developed caverns. The overlying rocks are Senonian limestones, with numerous fracture systems, similar to those in the underlying: rocks because of their com- mon structural evolution. They, too, are well stratified and the thickness of the ...
... hierarchy process, Eur. J. Oper. Res., 48(1), 926. BAJIĆ D., D. POLOMČIĆ (2014) Fuzzy optimization in hydrodynamic analysis of groundwater control systems: Case study of the pumping station “Bezdan 1”, Serbia, Geološki anali Balkanskoga poluostrva, 75, 1085—110, DOT: 10.2298/GABP1475103B ISSN: 0350-0608 ...
... 0350-0608. 1| KwANG H. C., H. J. LEB (1999) A method for ranking fuzzy numbers and its application to decision making, IEEE, Transaction on Fuzzy Systems, 7(6), 677—685. 1 LAMATA M. T. (2004) Ranking, of alternatives with ordered weighted averaging, operators, Int. J. Intell. Syst., 19, 473 482, ...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)
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Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals
Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić (2020)As the number of poorly soluble drugs is increasing, nanocrystals have become very interesting due to wide range of application possibilities. Curcumin was used as a model active ingredient in this work. Even though it has many proven positive effects, due to its physicochemical issues, its possibilities have not been fully exploited. The goal of this work was to select optimal conditions for a top-down method for curcumin nanosuspension production, and to perform their comprehensive characterization applying complementary methodologies: ...Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić. "Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals" in Review on advanced materials science, Walter de Gruyter GmbH (2020). https://doi.org/10.1515/rams-2020-0043
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Стратешко планирање функционалности подземних просторија моделом прогнозе деформација
Лука Црногорац (2023)Релативно велике деформације подградне конструкције у подземним рудницима угља у Републици Србији представљају један од главних проблема за постизање планиране производње угља. Деформације подграде су директна последица статичких и динамичких оптерећења стенске масе и у многоме зависе и од времена трајања изложености подграде утицају подземног притиска. Код ниско механизованог радног процеса долази до повећаног излагања подземних просторија утицају подземног притиска услед дугог производног циклуса који је често пропраћен застојима у раду. Веома често подземне просторије се санирају и по ...Лука Црногорац. Стратешко планирање функционалности подземних просторија моделом прогнозе деформација, Београд : [Л. Црногорац], 2023
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A Tel Platform Blending Academic And Entrepreneurial Knowledge
... educational innovations — including social networking, blogs, wikis, cognitive tutors, virtual learning communities, and learning management systems (LMS) — have enabled further advances in the sharing of educational ideas, materials, and knowledge" [2]. The idea and practice of offering ...
... namely: • Tools - software to support the development, use, reuse and delivery of learning content, including content and learning management systems, as well as content development tools; • Learning content - learning resources, both academic and entrepreneurial, and reference resources ...
... growing with the rapidly expanding availability of various texts on the web. Besides being indispensable in information an document retrieval systems, these resources have a strong educational impact [7]. Students involved in the study of OCW in a specific domain should get acquainted with the ...Ivan Obradović, Ranka Stanković, Jelena Prodanović, Olivera Kitanović. "A Tel Platform Blending Academic And Entrepreneurial Knowledge" in Proceedings of the The Fourth International Conference on e-Learning (eLearning-2013), September 2013, Belgrade, Serbia, Belgrade, Serbia : Belgrade Metropolitan University (2013)
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An oilfield in Libya: A new model to enhance waste water disposal
Dušan Danilović, Vesna Karović Maričić, Nori Elhaddad, Branko Leković. "An oilfield in Libya: A new model to enhance waste water disposal" in Energy & Environment (2016)
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Indexing of textual databases based on lexical resources: A case study for Serbian
In this paper we describe an approach to improvement of information retrieval results for large textual databases by pre-indexing documents using bag-of-words and Named Entity Recognition. The approach was applied on a database of geological projects financed by the Republic of Serbia in the last half century. Each document within this database is described by metadata, consisting of several fields such as title, domain, keywords, abstract, geographical location and the like. A bag of words was produced from these ...... locations, e-dictionaries and information within them is crucial; for others, like temporal expressions, local grammars in the form of FSTs that try to capture a 4 http://resursi.mmiljana.com/Default.aspx variety of syntactic forms in which a NE can occur had to be developed. However, for all of them local ...Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović. "Indexing of textual databases based on lexical resources: A case study for Serbian" in Semantic Keyword-based Search on Structured Data Sources : First COST Action IC1302 International KEYSTONE Conference, IKC 2015, Coimbra, Portugal, September 8-9, 2015. Revised Selected Papers, Springer (2015). https://doi.org/10.1007/978-3-319-27932-9_15
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Primena digitalne fotogrametrije u rudniku Rudnik
Digitalna fotogrametrija, lasersko skeniranje i virtuelizacija sve više pronalaze aktivne uloge u rudarstvu, prvenstveno zbog svoje široke mogućnosti primene. Laserskim skeniranjem i fotogrametrijom snimaju se i kreiraju 3D modeli otkopa, jamskih hodnika, površinskih kopova, površinskih objekata (zgrada, spomenika, predmeta), a vrši se skeniranje celih rudnika koji se rekonstruišu u 3D digitalne modele. Fotogrametrija predstavlja proces fotografisanja objekata pomoću fotoaparata i daljom obradom fotografija u različitim softverskim alatima kreiraju se realne kopije 3D modela objekata ili predmeta u digitalnoj formi. Za ...... komora itd.) da bi sc dobila digitalna forma unutrašnjosti objekata. Nakon fotografisanja, fotografije se uvoze u određene softverske alate (Reality Capture, Agisoft, Sirovision itd.) pomoću kojih se kreiraju oblaci tačaka koji predstavljaju 3D digitalne modele. Oblaci tačaka nastaju preklapanjem fotografija ...Nikola Mirković, Luka Crnogorac, Katarina Urošević. "Primena digitalne fotogrametrije u rudniku Rudnik" in XI Međunarodna konferencija ugalj i kritični minerali CCM 2023, Zlatibor, 11-14. oktobar 2023., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
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Determining seismic hazard in slowly deforming region: Can we gather enough information from karst caves?
Ана Младеновић, Јелена Ћалић (2021)... This activity led to theformation of faults that are favorably oriented in respect to the main thrust system. It is suspectedthat some of these fault systems are also active in recent times. Relatively complex geological structure and existence of a large number of rock discontinuities, aswell as relatively ...Ана Младеновић, Јелена Ћалић. "Determining seismic hazard in slowly deforming region: Can we gather enough information from karst caves?" in EGU General Assembly 2021, European Geosciences Union (2021). https://doi.org/10.5194/egusphere-egu21-8723
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Poređenje rezultata interferometrijske analize za zemljotrese na istočnom anatolijskom rasedu od 2020. i 2023. godine
Dragan Živković (2024)Ovaj rad se bavi analizom površinskih deformacija izazvanih zemljotresima u Turskoj iz 2020. i 2023. godine korišćenjem diferencijalne satelitske radarske interferometrije (DInSAR tehnike). Cilj istraživanja bio je da se kvantifikuju i uporede deformacije terena izazvane ovim seizmičkim događajima i da se razumeju mehanizmi koji stoje iza oslobađanja seizmičke energije u regionu. Analizom DInSAR snimaka, identifikovane su različite deformacije duž rasednih zona za svaki zemljotres. Dok je zemljotres iz 2020. godine (M 6,7) izazvao lokalizovane deformacije duž Istočno anatolijskog raseda, zemljotres ...Dragan Živković. Poređenje rezultata interferometrijske analize za zemljotrese na istočnom anatolijskom rasedu od 2020. i 2023. godine, 2024
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Review: Methodological approaches and research techniques for addressing construction and remediation problems in karst reservoirs
Saša Milanović, Ljiljana Vasić (2021)Saša Milanović, Ljiljana Vasić. "Review: Methodological approaches and research techniques for addressing construction and remediation problems in karst reservoirs" in Hydrogeology Journal, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10040-020-02280-1
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Approach to operational mine planning: Case study Tamnava West
... technology of Tamnava West, is based on continuous mining equipment. Coal and interburden is excavated with 4 ECC systems (Bucketwheel Excavator - Conveyors-Crushing Plant), and 2 ECS systems (Bucketwheel Excavator- Conveyors-Spreader) are engaged on overburden excavation. General technological ...
... malscience.vinca.rs/pdfs/papers- 2013/TSCI130201031S.pdf 8 Pavlović V, Ignjatović D, 2012, Selective opencast coal mining by continuous systems, Faculty of Mining and Geology, Belgrade 9 Drebenstendt C, 2010, Countinius surface mining – last developments in mine planning, equipment ...Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković. "Approach to operational mine planning: Case study Tamnava West" in Tehnika, Beograd : Savez inženjera i tehničara Srbije (2014). https://doi.org/10.5937/tehnika1406952S
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Развој геолошког терминолошког речника ГеолИССТерм
... them. On- tologies are used in important fields of computer and information science, such as artificial intel- ligence, semantic web, information systems, etc., as a form of representation of knowledge about the world or some part of it. generally speaking, ontologies describe: objects at the basic ...
... (fieldwork logs, map leg- ends and the descriptions found in them) and an analysis of the available terminology compiled for geologic information systems (U.S. geologi- cal Survey - USgS, california geological Survey - cgS, British geological Survey - BgS, Interna- tional Union of geological Sciences ...
... contain a rather large number of commonplaces, without references to concrete data. As far as the terminologies developed for geologic information systems are concerned, the American standard of scientific vocabulary for the digital geologic map database (Soller, D.r., 2004) is the most thorough and ...Ranka Stanković, Branislav Trivić, Olivera Kitanović, Branislav Blagojević, Velizar Nikolić. "Развој геолошког терминолошког речника ГеолИССТерм" in INFOteka: časopis za informatiku i bibliotekarstvo, Beograd : Zajednica biblioteka univerziteta u Srbiji (2011)
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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... y used, and, in correlation to field research, has the potential to contribute significantly to defining, the genesis of groundwater in karst systems. Groundwater genesis is influenced by various factors such as precipitation Sustainability 2023, 15, 11146. https:/ /doi.org,/10.3390/su151411146 ...
... conditions required for the formation of subthermal and thermal karst ground- waters were created by the process of deep karstification within karst systems, as well as hrough the existence of certain geological barriers that caused significant vertical karsti- ication. The circulation of groundwater ...
... of the karst groundwater and its circulation conditions. 2. Materials and Methods The Krupaja system represents one of the most complex karst systems within the Beljanica karst massif, and as such, it is of greatimportance for the study of karst ground- water genesis, the depth of cold, subthermal ...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
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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 ...... t of systems for automatic enrichment of taxonomies with new word senses, drawn from other lexicographic resources. The task provided prospective systems with a set of word senses that were not in PWN, where each word sense comprised a lemma, a part of speech, and a defi- nition. The systems were ...
... synset, or adding it as a new hyponym synset. Keywords: WordNet, bilingual resources, term alignment, parallel lists 104 Five teams submitted 13 systems, with all teams performing better than chance, but only one team sur- passing a simple baseline, thus pointing towards a need for further efforts ...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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Model inteligentnog sistema adaptivnog upravljanja procesom prerade rude
Ivana M. Jovanović (2016-01-13)U oblasti procesa prerade rude, flotacijska koncentracija predstavlja jednu od najznačajnijih i najčešće primenjivanih metoda separacije korisnih od nekorisnih minerala. Samim tim, veoma je važno osigurati uspešan rad flotacijskog postrojenja kroz dostizanje zadovoljavajućih tehno-ekonomskih pokazatelja. Cilj upravljanja procesom flotacijske koncentracije je upravo optimizacija kvaliteta i iskorišćenja korisne komponente u koncentratu uz maksimizaciju profita. Shodno tome, istraživanja na polju modelovanja i upravljanja ovim procesom zauzimaju značajno mesto u praksi kontolnog inženjenringa.Teorijska istraživanja u okviru doktorske disertacije obuhvatila su analizu položaja ...flotacijska koncentracija, modelovanje, upravljanje, inteligentni sistem, soft kompjuting, fazi logika, veštačke neuronske mreže... Minerals Engineering 19, pp. 774–783 273. Turban, E., 1992. Expert Systems and Applied Artificial Intelligence. Publisher: Macmillan USA, 720p. 274. Turban, E., 1995. Decision Support and Expert Systems: Management Support Systems, Publisher: Prentice-Hall, 930 p. 275. Uçurum, M., Bayat, O., 2007 ...
... control of dynamic flotation systems, except, in part, for the lower hierarchy levels. In the area of advanced control, model predictive methods can improve flotation process performances, but as a rule, in a short period of time. Finally, intelligent methods and expert systems have a good potential ...
... Rezai, B., 2010. A study on the effect of particle size on coal flotation kinetics using fuzzy logic. Expert Systems with Applications 37, pp. 5201–5207 2. Abraham, A., 2003. Intelligent Systems: Architectures and Perspectives, Chapter 1 in: Recent Advances in Intelligent Paradigms and Applications (Studies ...Ivana M. Jovanović. "Model inteligentnog sistema adaptivnog upravljanja procesom prerade rude" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-01-13)