Претрага
227 items
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Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae
Hans Peter Nytoft, Geir Kildahl-Andersen, Sofie Lindström, Frode Rise, Achim Bechtel, Danica Mitrović, Nataša Đoković, Dragana Životić, Ksenija A. Stojanović (2019)Two previously unidentified dehydroabietane isomers were isolated from Miocene Serbian lignite and Rhaetian (Late Triassic) coaly mudstones from South Sweden and characterized using NMRspectroscopy as cis- and trans-dehydroicetexane. Both have a 9(10?20)-abeo-abietane or icetexane skeleton, consisting of a 6-7-6 tricyclic framework with seven carbons in ring B instead of the usual six in common diterpanes of the abietane-type. Dehydroicetexanes can be detected using GC-MS-MS in m/z 270?146 chromatograms without interference from dehydroabietane or other isomers. Dehydroicetexanes are often abundant ...Hans Peter Nytoft, Geir Kildahl-Andersen, Sofie Lindström, Frode Rise, Achim Bechtel, Danica Mitrović, Nataša Đoković, Dragana Životić, Ksenija A. Stojanović. "Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae" in Organic Geochemistry, Elsevier BV (2019). https://doi.org/10.1016/j.orggeochem.2019.01.001
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Investigating distant effects of the Moesian promontory: Brittle tectonics along the western boundary of the Getic unit (East Serbia)
In this study, we report evidence for brittle deformation in a part of the Carpatho–Balkan orogen, which is explained in terms of effects of the rigid Moesian promontory of the European plate on fault kinematics in East Serbia. We focus on the westernmost part of the Getic Unit of the East Serbian Carpatho–Balkanides, i.e. the Gornjak–Ravanica Unit, located between two main thrusts that were repeatedly activated from Early Cretaceous to recent times. We combine a new data set on ...Getikum, Mezijska jedinica, Karpato-balkanski orogen, krte deformacije, Gornjačko-ravanička jedinicaAna Mladenović, Milorad D. Antić, Branislav Trivić, Vladica Cvetković. "Investigating distant effects of the Moesian promontory: Brittle tectonics along the western boundary of the Getic unit (East Serbia)" in Swiss Journal of Geosciences, Springer (2019). https://doi.org/10.1007/s00015-018-0324-5
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Tеслапедиа као централна база библиографских података о Николи Тесли
Циљ овог рада је да прикаже идеју и процес израде најкомплетније електронске библиографске базе о Николи Тесли, симболично назване Теслапедиа. Oвaквa бaзa би укључивaлa Teслину библиoгрaфиjу, кao и библиoгрaфиjу других o њeму. Сaм кoнцeпт рaзвoja Teслaпeдиe je видљив крoз двe глaвнe идeje. Првa идeja je зaснoвaнa нa пoстaвљaњу свих пoстojeћих библиoгрaфских јединица кoje Mузej пoсeдуje нa oдрeђeну вeб-лoкaциjу a другa, пoдjeднaкo вaжнa, oглeдa сe у мoгућнoстимa дaљeг рaзвoja и нaдгрaдњe сaмe структурe базе придруживaњeм нoвих библиoгрaфских пoдaтaкa. Oвa бaзa ...... рeдизajн функциja рaчунaрa кojи су сe кoристили дo тaдa. ‘THINK protocols’: Technical Histories of the Internet & other Networк Protocols, “A Technical History of ARPANET” (The University of Texas at Austin), http://www.cs.utexas.edu/users/chris/thinк/ARPANET/ (преузето 29. 9. 2013). (Advan ced Re se arch ...
... lacollection.com/about (преузето 29. 9. 2013). 6. ‘THINK protocols’: Technical Histories of the Internet & other Networк Protocols. “A Technical History of ARPANET”. The University of Texas at Austin. http://www.cs.utexas.edu/users/chris/thinк/ARPANET/ (преузето 29. 9. 2013). 7. Tuđman, Miroslav ...Ивана Ћирић, Сузана Топаловић, Биљана Лазић. "Tеслапедиа као централна база библиографских података о Николи Тесли" in Читалиште (2013)
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Regionalno-geološke karakteristike miocenskih sedimenata na prostoru severnog Banata
Dejan N. Radivojević (2014-12-30)Predmet doktorske disertacije predstavljalo je rešavanje strukturno‐stratigrafskihodnosa miocenskih sedimenata na prostoru severnog Banata. U cilju regionalnogsagledavanja, korišćeni su svi raspoloživi geofizički i geološki podaci sa širegistražnog područja, odnosno iz celog Panonskog basena i susednog orogena. Osimklasičnih metoda primenjene su i savremene metode seizmostratigrafije,tektonostratigrafije i riftne sekvencione stratigrafije. Primenjene metode omogućilesu izradu modela progradacije ivice šelfa za ceo Panonski basen, modela uzajamnihveza između basena i geodinamičkog modela jugoistočnog oboda basena.Jezero Panon je većim delom zapunjeno prilivom sedimenata paleo‐Dunavom saseverozapada, odnosno ...Centralni Paratetis, Panonski basen, miocen, jezero Panon,seizmostratigrafija, sekvenciona stratigrafija, paleogeografija, geodinamika... Memoir, v. 45, p. 355–372. Horváth, F., G. Bada, P. Szafian, G. Tari, A. Adam, and S. Cloetingh, 2006, Formation and deformation of the Pannonian Basin: constraints from observational data, Geol. Soc. London, Memoirs, v. 32(1), p. 191–206, doi:10.1144/GSL.MEM. 2006.032.01 ...
... Thesis, 220 pp, Bucharest. Uhrin, A., I. Magyar, and O. Sztanó, 2009, Control of the Late Neogene (Pannonian s.l.) sedimentation by basement deformation in the Zala Basin, Földtani Közlöny, v. 139, p. 273–282. Uhrin, A., and O. Sztanó, 2012, Water‐level changes and their effect on deepwater ...
... evolution of the Western Alpine System. In: Biju‐Duval, B. J. and, L. Montadert (Eds.), International Symposium on the Structural History of the Mediterranean Basins, Technip, Paris, p. 143–164. Bistričić, A., and K. Jenko, 1985, Area No. 224 b1: Transtethyan Trench “Corridor” ...Dejan N. Radivojević. "Regionalno-geološke karakteristike miocenskih sedimenata na prostoru severnog Banata" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-12-30)
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Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal
Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)... pp. 151–159. 26. Peters, K.E.; Walters, C.C.; Moldowan, J.M. The Biomarker Guide, Volume 1: Biomarkers and Isotopes in the Environment and Human History; Cambridge University Press: Cambridge, UK, 2005; pp. 72–81. 27. Behar, F.; Kressmann, S.; Rudkiewicz, J.; Vandenbroucke, M. Experimental simulation ...
... studies. J. Serb. Chem. Soc. 2012, 77, 1109–1127. [CrossRef] 44. Ercegovac, M.; Kostic, A.; Karg, H.; Welte, D.H.; Littke, R. Temperature and Burial History Modelling of the Drmno and Markovac Depressions, Se Pannonian Basin, Serbia. J. Pet. Geol. 2003, 26, 5–27. [CrossRef] Polymers 2021, 13, 759 24 ...
... on and mixing. Org. Geochem. 1999, 30, 1213–1227. [CrossRef] 73. George, S.C.; Lisk, M.; Summons, R.E.; Quezada, A.R. Constraining the oil charge history of South Pepper oilfield from the analysis of bearing fluid inclusions. In Advances in Organic Geochemistry1997, Part 1; Horsfield, B., Radke, M. ...Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović. "Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal" in Polymers, MDPI AG (2021). https://doi.org/10.3390/polym13050759
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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... materials are the basic prerequisite for the application of geophysical methods to be successful. The use of iron-based materials during human history allows for the successful application of magnetometry, which is now one of the leading choices of geophysical methods for archaeologi- cal reconnaissance ...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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Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining
Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić (2024)Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić. "Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining" in Proceedings of the Bulgarian Academy of Sciences, Bulgaria, 28. maj 2024 , Prof. Marin Drinov Publishing House of BAS (Bulgarian Academy of Sciences) (2024). https://doi.org/10.7546/CRABS.2024.07.10
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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 ...... Dejan Ivezić, Marija Živković University of Belgrade, Faculty of Mining and Geology, Djusina 7, 11000 Belgrade, Serbia a r t i c l e i n f o Article history: Received 14 December 2020 Received in revised form 27 January 2021 Accepted 4 February 2021 Available online xxxx Keywords: Electricity generation ...
... Godo, L., Prade, H., 2007. From classical mathematics to fuzzy mathematics: Emergence of a new paradigm for theoretical science. In: Handbook of the history of logic, Vol. 8, (2008), Elsevier, Oxford. Forman, E., Peniwati, K., 1998. Aggregating individual judgments and priorities with the analytic hierarchy ...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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Одређивање оптималне производње дубинске пумпе на клипним шипкама
Небојша Савић (2024)Дужи временски период током историје производње нафте, дубинске пумпе на клипним шипкама су први и у многим случајевима једини избор када су у питању механичке методе експлоатације. Правилан одабир сваког појединачног елемента система омогућава оптимизацију која са собом повлачи бенефите у виду повећавања ефикасности и смањења трошкова. Тренутно примењени систем дубинских пумпи на клипним шипкама на лежишту „Н“ обезбеђује стабилну производњу и реализацију годишњих планова производње без већих проблема. У овом раду је приказан начин оптимизације производње дубинским пумпама ...... 3a Oy6uuHcko nyna!be ( JOURNAL OF PETROLEUM TECHNOLOGY/Legends of Artificial Lift-Part 3 URL: https://jpt.spe.org/legends-artificial-lift-part-3-history ) 4.1. Kauajbka KauaJbke cy MeXaHHuKcC HHCTAaJaHjC HOCTAaBJBCHC Ha HIOBDPIHHHMH KOJC IIpH KpeTaPby IJaTKC HHIHIKC Ha )KOJBČHOJ Op3HHH TIOJUDKy ...
... (22.04.2024.) 12. JOURNAL OF PETROLEUM TECHNOLOGY/Legends of Artificial Lift- Part 3, URL: https://jpt.spe.org/legends-artificial-lift-part-3-history (23.04.2024.) 13. SNPC, URL: http:/www.sinopeciI.com/English/Product/0560383238.html (27.04.2024.) 46 O6pasay 1 H3JABA O AVTOPCTBY 3ABPIIHHOT ...Небојша Савић. Одређивање оптималне производње дубинске пумпе на клипним шипкама, 2024
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Lower Berriasian ammonites from Dedina (Golubac Mountains, eastern Serbia) and their biostratigraphic implication
... of Tithonian ammonites of the Gerecse Mountains. In: Fozy, L. (Ed.), Late Jurassic — Early Cretaceous fauna, biostratigraphy, facies and deformation history of the carbonate formations in the Gerecse and Pilis Mountains (Transdanubian Range, Hungary). Institute of Geo- sciences, University of Szeget ...
... Identification of the studied material is usually difficult by the juvenile size of the specimens, the accompanied planar deforma- tion or lateral deformation, the unknown shape of the ventral side, Z. Vašiček, D. Rabrenović, P. Skupien et al. and the frequent lack of preservation of the inner whorls ...
... are given in paren- theses. The width of the whorl (B), although exceptionally measurable, would not usually be worth measuring due to the deformation of the shells. Where possible, the number of ribs at the umbilicus and by the ventral side was counted on half of the whorl. The studied and ...Zdenek Vasícek , Dragoman Rabrenović, Petr Skupien, Barbara Radulović. "Lower Berriasian ammonites from Dedina (Golubac Mountains, eastern Serbia) and their biostratigraphic implication" in Cretaceous Research (2023). https://doi.org/10.1016/j.cretres.2023.105623
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Understanding partitioning of deformation in highly arcuate orogenic systems: Inferences from the evolution of the Serbian Carpathians
Nemanja Krstekanić, Liviu Matenco, Marinko Toljić, Oleg Mandić, Uroš Stojadinović, Ernst Willingshofer (2020)... extensional deformation. The second type, strike-slip deformation has created NE-SW to NW- SE oriented dextral and sinistral faults that are distributed throughout the entire studied area at outcrop scale. The fact that only few map-scale faults with low offset can be attributed to this deformation (Fig ...
... these major contacts are observed in the field by zones of intense deformation, such as meters- thick foliated fault gouges, intense faulting with large offset at outcrop scale, or tight folding. Similar zones of intense deformation with large outcrop-scale offsets have been observed also elsewhere ...
... e, in order to understand the regional effects and super- position, we have also measured deformation at farther distances from major faults of shear zones (black faults in Figs. 5, 7, 8 and 10). Deformation has a brittle character in most observed situations. The pre-Mesozoic basement contains ductile ...Nemanja Krstekanić, Liviu Matenco, Marinko Toljić, Oleg Mandić, Uroš Stojadinović, Ernst Willingshofer. "Understanding partitioning of deformation in highly arcuate orogenic systems: Inferences from the evolution of the Serbian Carpathians" in Global and Planetary Change, Elsevier BV (2020). https://doi.org/10.1016/j.gloplacha.2020.103361
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NMR kinetic studies of the interactions between [Ru(terpy)(bipy)(H2O)]2+ and some sulfur-donor ligands
Aleksandar Mijatović, Biljana Šmit, Ana Rilak, Biljana Petrović, Dragan Čanović, Živadin D. Bugarčić (2012)Reakcije supstitucije monofunkcionalnog [Ru(terpi)(bipi)(H2O)]2+ kompleksa, gde je terpi = 2,2′:6′,2″-terpiridin i bipi = 2,2′-bipiridin, sa biološki relevantnim sumporo donorskim ligandima, kao što su tiourea, l-metionin, l-cistein i glutation, proučavane su u vodenim rastvorima tehnikom 1H i 13C NMR spektroskopije. Sve reakcije su proučavajne na pH 7,4, u prisustvu fosfatnog pufera, da bi se oponašalo fiziološko okruženje tokom procesa supstitucije. Reakcije se izvode na 295 K pod uslovima reakcija drugog reda. Uočeni rezultati pokazuju da brzina supstitucije snažno zavisi ...Aleksandar Mijatović, Biljana Šmit, Ana Rilak, Biljana Petrović, Dragan Čanović, Živadin D. Bugarčić. "NMR kinetic studies of the interactions between [Ru(terpy)(bipy)(H2O)]2+ and some sulfur-donor ligands" in Inorganica Chimica Acta, Elsevier BV (2012). https://doi.org/10.1016/j.ica.2012.09.016
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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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Mineralogical analysis of a clay body from Zlakusa, Serbia, used in the manufacture of traditional pottery
... 2019; revised 25 June 2020; Accepted Manuscript online: 1 The production of pottery in the broad sense is one of the oldest activities in human history. With the discovery, 30,000 years ago, of the special properties that clay acquires upon firing, the first synthetic material was created: ceramic ...Maja Milošević, Biljana Đorđević, Mihovil Logar. "Mineralogical analysis of a clay body from Zlakusa, Serbia, used in the manufacture of traditional pottery" in Clay Minerals (2020). https://doi.org/10.1180/clm.2020.20
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Vodosnabdevanje podzemnim vodama u Srbiji-stanje i perspektive
Dušan Polomčić, Zoran Stevanović, Petar Dokmanović, Petar Papić, Vesna Ristić-Vakanjac, Bojan Hajdin, Saša Milanović, Dragoljub Bajić (2011)... ilustr., fotogr. ; 24 cm Na vrhu nasl. str.: Univerzitet u Beogradu, Departman za hidrogeologiju. - Tiraž 250. - Summary: Brief Note on Structure, History and Curriculum of �e Department of Hydrogeology of University of Belgrade - Faculty of Mining & Geology. ISBN 978-86-7352-260-9 1. Рударско-геолошки ...
... 7. Raspored predmeta po semestrima i godinama studija na Studijskom programu hidrogeologija 8. Brief Note on Structure, History and Curriculum of �e Department of Hydrogeology of University of Belgrade – Faculty of Mining & Geology 5 7 45 79 117 133 137 ...Dušan Polomčić, Zoran Stevanović, Petar Dokmanović, Petar Papić, Vesna Ristić-Vakanjac, Bojan Hajdin, Saša Milanović, Dragoljub Bajić. "Vodosnabdevanje podzemnim vodama u Srbiji-stanje i perspektive" in Naših 40 godina, Beograd : Rudarsko-geološki fakultet (2011): 49-77
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Снимање подземних инсталација GPR (Ground penetrating Radar) системом
Невена Ђурђев (2024)Циљ овог мастер рада на тему ,,Снимање подземних инстлација GPR (Ground penetrating radar) системом” је био да се прецизно идентификују положаји подземних инсталација и прикључака, због сумње да су поједине инсталације постављене изван пројектованих позиција.Георадарски систем одабран је за детектовање и идентификовање подземних инсталација, због своје способности да обезбеди неинвазивно и детаљно снимање подземних структура.Првобитно је примењена GNSS метода снимања коришћењем GPS-а, потом услед немогућности отварања шахти, одлучено је да се примени георадарска у комбинацији са електромагнетном методом. Након ...катастар, катастар водова, подземне инсталације, методе детекције подземних инсталација, георадарска метода, георадар... Beorpajni 2024. 7. MHnrepHer crpaHmma „History of Ground Penetrating Radar (GPR)”. Jlwmk: https://www.obonic.de/en/blog/ground-peentrating-radar-history/ 8. HnHrepHer crpaHmma „YThe History of Ground Penetrating: Radar (GPR)”. JIqHK: https://safe2core.com/the-history-of-ground-penetrating-radar-gpr/ ...Невена Ђурђев. Снимање подземних инсталација GPR (Ground penetrating Radar) системом, 2024
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An intelligent hybrid system for surface coal mine safety analysis
Nikola Lilić, Ivan Obradović, Aleksandar Cvjetić. "An intelligent hybrid system for surface coal mine safety analysis" in Engineering Applications of Artificial Intelligence (2010)
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Properties of fly ash and slag from the power plants
This paper describes the physical, chemical and mineral properties of ash and slag, which were taken from thermal power plants Nikola Tesla A, Nikola Tesla B, Kostolac A and Kostolac B. The knowledge of the mineralogical material composition is important because the type of minerals directly determines the properties of the fly ash and slag and their possible application. Laboratory tests showed that ash and slag samples consist of the following minerals: amorphous materials, quartz, feldspar, mullite, melilite, cristobalite, ...fly ash, slag, physical composition, chemical composition, mineral composition, X-ray diffraction method... properties that are dependent on the natural composition, quality of coal from basin, the manner of com- bustion and place of ash deposition. Article history: Manuscript received March 24, 2016 Revised manuscript accepted July 19, 2016 Available online October 20, 2016 Keywords: fly ash, slag ...Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić. "Properties of fly ash and slag from the power plants" in Geologia Croatica, Zagreb : Croatian Geological Survey (2016). https://doi.org/10.4154/gc.2016.26
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Development and Evaluation of Three Named Entity Recognition Systems for Serbian - The Case of Personal Names
In this paper we present a rule- and lexicon-based system for the recognition of Named Entities (NE) in Serbian news paper texts that was used to prepare a gold standard annotated with personal names. It was further used to prepare training sets for four different levels of annota tion, which were further used to train two Named Entity Recognition (NER) sys tems: Stanford and spaCy. All obtained models, together with a rule- and lexicon based system were evaluated on ...... Entities in Texts. Theoretical Computer Science 313(1):93– 104. Ralph Grishman and Beth Sundheim. 1996. Message Understanding Conference-6: A Brief History. In Proceedings of the 16th International Conference on Computational Linguistics (COLING 1996). vol- ume 1. Matthew Honnibal and Ines Montani. 2017 ...Branislava Šandrih, Cvetana Krstev, Ranka Stanković. "Development and Evaluation of Three Named Entity Recognition Systems for Serbian - The Case of Personal Names" in Proceedings - Natural Language Processing in a Deep Learning World, Incoma Ltd., Shoumen, Bulgaria (2019). https://doi.org/10.26615/978-954-452-056-4_122
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Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions
Martin Fabián, Bratislav Antić, Vladimír Girman, Milica Vučinić-Vasić, Aleksandar Kremenović, Shigeru Suzuki, Horst Hahn, Vladimír Šepelák (2015)A series of nanostructuredfluorite-type Ce1–xYxO2–δ (0rxr0.35) solid solutions, prepared via highenergy milling of the CeO2/Y2O3mixtures, are investigated by XRD, HR-TEM, EDS and Raman spectroscopy. For thefirst time, complementary information on both the long-range and short-range structural features of mechanosynthesized Ce1–xYxO2–δ, obtained by Rietveld analysis of XRD data and Raman spectroscopy, is provided. The lattice parameters of the as-prepared solid solutions decrease with increasing yttrium content. Rietveld refinements of the XRD data reveal increase in microstrains in the host ceria ...Martin Fabián, Bratislav Antić, Vladimír Girman, Milica Vučinić-Vasić, Aleksandar Kremenović, Shigeru Suzuki, Horst Hahn, Vladimír Šepelák. "Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions" in Journal of Solid State Chemistry, Elsevier BV (2015). https://doi.org/10.1016/j.jssc.2015.06.027