Претрага
881 items
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Studying of Liquid Thermolysis Products of Various Types of Immature Kerogen in Sedimentary Lacustrine Rocks from the Valjevo-Mionica Basin, Serbia, and the Effect of Pt4+ and Ru3+ Ions on Their Yield and the Hydrocarbon Composition
Šajnović Aleksandra, Stojanović Ksenija, Simić Vladimir, Pevneva Galina S., Golovko Anatoly K., Jovančićević Branimir (2011)Šajnović Aleksandra, Stojanović Ksenija, Simić Vladimir, Pevneva Galina S., Golovko Anatoly K., Jovančićević Branimir. "Studying of Liquid Thermolysis Products of Various Types of Immature Kerogen in Sedimentary Lacustrine Rocks from the Valjevo-Mionica Basin, Serbia, and the Effect of Pt4+ and Ru3+ Ions on Their Yield and the Hydrocarbon Composition" in Geochemistry International 10 no. 49, Moscow, Russian Federation:Springer, M A I K Nauka - Interperiodica (2011): 1022-1034. https://doi.org/10.1134/S0016702911100053
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An insight into the evolution of the lithospheric mantle of south Saharan metacraton: Mantle xenoliths from Jabal Eghei Volcanic Complex, Libya
Bazaltni magmatizam, Osiromašenje omotača, Metasomatizam, Subkontinentalni omotač, Spinelski lerzolitVladica Cvetković, Maša Radivojević, Dejan Prelević, Marinko Toljić, Salah M. Turki . "An insight into the evolution of the lithospheric mantle of south Saharan metacraton: Mantle xenoliths from Jabal Eghei Volcanic Complex, Libya" in Journal of Volcanology and Geothermal Research, Elsevier (2022). https://doi.org/doi.org/10.1016/j.jvolgeores.2022.107691
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Depth geological relations of the wider area of Belgrade - based on the wells and geophysical data
Đorđe Marinović, Ljupko Rundić (2020)Предметна референца обухвата простор шире околине Београда укупне површине око 2.000 km2. Аутори су објединили капиталне геолошке и геофизичке податке обезбеђене површинским истраживањима и мултидисциплинарним елементима из 52 бушотинe са дубинама између 33 и 2.733 m. Конкретни палеонтолошки налази специјализованих аналитичара са детерминацијом макро и микрофауне и флоре, презентовани су како из неогених формација тако и из басенске подине. Осим конвенционалних петролошких описа стена цитиране су и микроскопске детерминације интрузивних и екструзивних магматита. Из затвореног басенског простора корелативно су ...Đorđe Marinović, Ljupko Rundić. "Depth geological relations of the wider area of Belgrade - based on the wells and geophysical data" in Annales geologiques de la Peninsule balkanique, National Library of Serbia (2020). https://doi.org/10.2298/GABP201030009M
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Extreme Rainfall Event and Its Aftermath Analysis—IPL 210 Project Progress Report
Biljana Abolmasov, Mileva Samardžić Petrović, Ranka Stanković, Miloš Marjanović, Jelka Krušić, Uroš Đurić (2021)Biljana Abolmasov, Mileva Samardžić Petrović, Ranka Stanković, Miloš Marjanović, Jelka Krušić, Uroš Đurić. "Extreme Rainfall Event and Its Aftermath Analysis—IPL 210 Project Progress Report" in Understanding and Reducing Landslide Disaster Risk, Springer International Publishing (2021). https://doi.org/10.1007%2F978-3-030-60196-6_19
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Control of substructure construction of railways in the Republic of Serbia
Контрола збијености природног тла (у ископу) или збијеног у насипу при изградњи саобраћајница представља један од основних облика контроле квалитета доњег строја. Код изградње брзих саобраћајница (аутопутеви и брза железница) приоритет је постизање високог нивоа контроле извршених радова. У циљу онемогућавања диференцијалног слегања (при изградњи насипа), или промене запремине услед допунског збијања материјала, које неминовно доводе до деформација, потребно је извршити оптимално збијање материјала. У оквиру овог рада приказује се техничка регулатива која регулише контролу збијености при изградњи железничке ...... thickness constructions safe on frost including the protective layer of the planum EV2 (MN/m2) Rc* EV2 (MN/m2) Rc* Frost action zone I (m) II (m) III (m) Open track tracks, running (through) track and relief tracks 120 1,00 80 1,00 0,50 0,60 0,70 other tracks 80 0,97 45 0,95 0,30 0,40 0,50 ...
... [2:37-38] a) Embankment height H > 2,00 m Railway planum level EV2 = 120 MN/m2 Protective layer EV2 = 80 MN/m2 Transition layer EV2 = 60 - 45** MN/m2 Below the transition layer to depth 2,0 m EV2 = 45 MN/m2 or Rc* > 100% Below the transition layer to depth > 2,0 m EV2 = 20 MN/m2 or Rc* > 95% b) Embankment ...
... filter criteria in relation to the underlying layer. The maximum grain size is up to 60 mm, water permeability -4 m/s at the degree of compaction Rc = 1.0. The minimum thickness is 0.20 m, and together with the transition layer, it should meet the conditions of safety against frost [2:38-38]. The transition ...Dragan Lukić, Dragoslav Rakić, Irena Basarić Ikodinović. "Control of substructure construction of railways in the Republic of Serbia" in International Conference On Contemporary Theory and Practice in Construction XV, Banja Luka 16-17 jun 2022., University of Banja Luka Faculty of Architecture, Civil Engineering and Geodesy (2022)
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Geodynamics of basins above subducted slabs: An integrated modelling study of tectonics, sedimentation, and magmatism in the Timok Magmatic Complex
Uros Stojadinovic, Marinko Toljic, Branislav Trivic, Radoje Pantovic, Danica Sreckovic-Batocanin, Nemanja Krstekanic, Bojan Kostic, Milos Velojic, Jelena Stefanovic, Nikola Randjelovic, Maja Males (2024)Uros Stojadinovic, Marinko Toljic, Branislav Trivic, Radoje Pantovic, Danica Sreckovic-Batocanin, Nemanja Krstekanic, Bojan Kostic, Milos Velojic, Jelena Stefanovic, Nikola Randjelovic, Maja Males. "Geodynamics of basins above subducted slabs: An integrated modelling study of tectonics, sedimentation, and magmatism in the Timok Magmatic Complex" in Annales geologiques de la Peninsule balkanique, National Library of Serbia (2024). https://doi.org/10.2298/GABP240116003S
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Using Lexical Resources for Irony and Sarcasm Classification
The paper presents a language dependent model for classification of statements into ironic and non-ironic. The model uses various language resources: morphological dictionaries, sentiment lexicon, lexicon of markers and a WordNet based ontology. This approach uses various features: antonymous pairs obtained using the reasoning rules over the Serbian WordNet ontology (R), antonymous pairs in which one member has positive sentiment polarity (PPR), polarity of positive sentiment words (PSP), ordered sequence of sentiment tags (OSA), Part-of-Speech tags of words (POS) ...... feature P R F1 acc set FS1 POS, OSA, M 0.504 0.530 0.517 0.817 FS2 R, OSA, M 0.605 0.486 0.539 0.845 FS3 PSP, POS, OSA, M 0.616 0.473 0.535 0.849 FS4 R, PSP, POS, OSA, M 0.658 0.458 0.540 0.856 FS5 PPR, POS, OSA, M 0.670 0.458 0.544 0.858 FS6 PPR, PSP, POS, OSA, M 0.686 0.451 0.544 0.861 The best recall ...
... feature P R F1 acc set FS1 POS, OSA, M 0.274 0.240 0.256 0.709 FS2 R, OSA, M 0.267 0.212 0.236 0.715 FS3 PSP, POS, OSA, M 0.280 0.235 0.256 0.715 FS4 R, PSP, POS, OSA, M 0.283 0.198 0.233 0.728 FS5 PPR, POS, OSA, M 0.273 0.203 0.233 0.722 FS6 PPR, PSP, POS, OSA, M 0.281 0.198 0.232 0.724 of antonymous ...
... of the devel- oped classifier was achieved for irony with a set of 5 features – (PPR, PSP, POS, OSA, M) – acc = 86.1%, while for sarcasm the best results were achieved with the set (R, PSP, POS, OSA, M) – acc = 72.8. CCS CONCEPTS •Computingmethodologies→Artificial intelligence;Knowl- edge representation ...Miljana Mladenović, Cvetana Krstev, Jelena Mitrović, Ranka Stanković. "Using Lexical Resources for Irony and Sarcasm Classification" in Proceedings of the 8th Balkan Conference in Informatics (BCI '17), New York, NY, USA, : ACM (2017). https://doi.org/
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Microemulsion with aromatic oil as cleaner media for electropolymerisation
Abstract Microemulsion polymerization is widely used as a cleaner alternative way to prepare intrinsically conductive polymers. We studied isothermal phase diagrams for microemulsions of the electropolymerizable heterocyclic aromatic oil 3,4-ethylenedioxythiophene (EDOT), aqueous LiClO4 solution and alkyl polyethoxylate. Our specific goal was to assess the effect of LiClO4 salt on the phase behaviour. The phase behaviour was characterized by stepwise titration and microscopic analyses. Here we found that the increase of the concentration of LiClO4 salt shifts the microemulsion region ...M. Ilić, F.-H. Haegel, S. Zlatanovic, N. Potkonjak, B. Simonovic. "Microemulsion with aromatic oil as cleaner media for electropolymerisation" in Environmental Chemistry Letters, Springer Science and Business Media LLC (2005). https://doi.org/10.1007/s10311-005-0101-3
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Аnaliza mogućnosti povećanja nagiba završne kosine površinskog kopa “Podbraćan”
Vladimir Čebašek, Veljko Rupar (2018)Eksploatacijom boksita iz ležišta "Podbraćan" formiran je površinski kop sa maksimalnom visinom zavšne kosine od 280 m. Redovnom kontrolom stabilnosti trenutnog stanja kosina površinskog kopa utvrđeno je da faktor sigurnosti iznosi Fs = 1.71 – 1.85, a što je ukazalo da postoji mogućnost povećanja nagiba kosine. U radu je prikazan postupak analize mogućnosti povećanja nagiba završne kosine površinskog kopa "Podbraćan".Vladimir Čebašek, Veljko Rupar. "Аnaliza mogućnosti povećanja nagiba završne kosine površinskog kopa “Podbraćan”" in Mining and Geology Today, II international symposium, Belgrade, 04 - 05.12.2018., Rudarski institut, Balkanska akademija nauka, Akademija inženjerskih nauka Srbije (2018). https://doi.org/10.25075/SI.2018.17
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Stratigraphy and microfossils (radiolarians and planktonic foraminifers) of the Upper Cretaceous (upper Santonian–lower Campanian) Struganik limestone (Western Serbia)
Liubov G. Bragina, Nikita Yu. Bragin, Ludmila F. Kopayevich, Nevenka Đerić, Nataša Gerzina Spajić (2019)Liubov G. Bragina, Nikita Yu. Bragin, Ludmila F. Kopayevich, Nevenka Đerić, Nataša Gerzina Spajić. "Stratigraphy and microfossils (radiolarians and planktonic foraminifers) of the Upper Cretaceous (upper Santonian–lower Campanian) Struganik limestone (Western Serbia)" in Palaeoworld, Elsevier BV (2019). https://doi.org/10.1016/j.palwor.2019.05.001
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Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area
Jovan Kovačević, Maja Todorović, Marina Ćuk, Petar Papić . "Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area" in Carpathian Journal of Earth and Environmental Sciences (2016)
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Effectiveness Analysis of Different Bucket-wheel Excavators
Coal production in open-pit lignite mines in the Republic of Serbia is performed with continuous work systems. In addition to coal production, the same systems are used for the exploitation of large quantities of overburden. According to the reliability concept, continuous systems are in linear connection. If the failure occurs in one part of the system, that will produce a downtime of the entire system. The initial and most important factor of continuous systems is the bucket-wheel excavator. It ...Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Miloš Tanasijević, Filip Miletić. "Effectiveness Analysis of Different Bucket-wheel Excavators" in 8th International Conference Mining and Environmental Protection, Sokobanja, 22-25 September 2021, University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia (2021)
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From post-disaster landslides inventory to open landslides data
Biljana Abolmasov, Miloš Marjanović, Uroš Đurić, Jelka Krušić. "From post-disaster landslides inventory to open landslides data" in Proceedings of 3rd European Regional Conference of IAEG/ Athens/ Greece/ 6-10 October 2021, International Association for Engineering Geology and the Environment (2021)
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Претрага корпуса заснована на употреби екстерних лексичких ресурса путем веб-сервиса
У раду се разматра хибридни приступ претрази корпуса, илустрован на примеру алатки OCWB и NoSketch Engine, примењених на специјални корпус из области рударства (РудКор) и Корпус савременог српског језика (СрпКор). Разматрани приступ комбинује постојеће могућности алатки OCWB и NoSketch Engine, које своју претрагу заснивају на лингвистичкој анотацији корпуса, са новим могућностима претраге у виду консултовања екстерних језичких ресурса (морфолошки електронски речници српског језика и лексичка база података Српски ворднет). Хибридни приступ је реализован надоградњом вебсучеља која поменуте алатке користе ...... информација из корпуса: * misko@matf.bg.ac.rs ** {ranka.stankovic, aleksandra.tomasevic, mihailo.skoric, biljana.lazic}@rgf.bg.ac.rs Милош М. Утвић, Ранка М. Станковић, Александра Ђ. Шкорић, Биљана Ђ. Лазић280 • на лингвистичкој анотацији корпусних текстова, • на консултовању екстерних језичких ресурса ...
... (dž) редом представљају следећим записима (карактерски кôд аурора): Sx, sx, Zx, zx, Cx, cx, Cy, cy, Dx, dx, Lx, lx, Nx, nx, Dy и dy. Милош М. Утвић, Ранка М. Станковић, Александра Ђ. Шкорић, Биљана Ђ. Лазић282 Реченица (Р1) Представљање реченице (Р1) у корпусу СрпКор2013 Позициони атрибут word ...
... система који се односи се на анотацију докумената врстом речи и лемом, снабдевање докумената метаподацима и генерисање самог корпуса. Милош М. Утвић, Ранка М. Станковић, Александра Ђ. Шкорић, Биљана Ђ. Лазић284 Слика 1. Рударски корпус у систему за управљање документацијом Изградња Рударског корпуса ...Милош Утвић, Ранка Станковић, Александра Томашевић, Михаило Шкорић, Биљана Лазић. "Претрага корпуса заснована на употреби екстерних лексичких ресурса путем веб-сервиса" in Научни састанак слависта у Вукове дане - Vol. 48/3 Српски језик и његови ресурси, Међународни славистички центар, Филолошки факултет, Универзитет у Београду (2019). https://doi.org/10.18485/msc.2019.48.3.ch12
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Valorization of non-balanced coal reserves in Serbia for underground coal gasification
David Petrović, Lazar Kričak, Milanka Negovanović, Stefan Milanović, Jovan Marković, Nikola Simić, Ljubisav Stamenić (2019)In the name of a better and safer energy future, it is our responsibility to focus our knowledge and activities to save on imported liquid and gas fossil fuels, as well as coal on which energy security of Serbia is based. The rationalization in the use of available energy resources certainly positively affects economy and the environment of a country. This paper indicates motivations for the application of the underground coal gasification process, as well as surface gasification for ...... 29:10%m) O ) 10000mX/h If in 4 months (120 days) amount of the burned coal is: 75-50· 63 = 29250 t, then with UCG the amount of gas will bet 29 mil. mž , which is: T =2900 hours =120days, 7=120days=4months (14) 29.10%3 3 . 3 ; 3 m, =—— ——=241667 ma/days , i. e. 10070m,/h, m\, =10070 m\/h (15) ...
... amount of UCG generated gas, taking into account the assumed surface of the exploitation field (75 x 50 m, ! = 6 m, H, = 3140 kJ/mž for gas from lignite) will be: | B,= O„Hp, =29:10%2 -3140 kJ /m,, E„ =25 GWh (10) where H. a [kJmŽ] is the lower thermal value of gas, Q, [mi] — the quantity of the ...
... about 10 times lower than the natural gas. The price of natural gas is around 40 RSD/m?, which leads to: || C! =—-·10=4 RSD/mš 11 s —10 n q Revenue from the delivered amount of gas is: C. k =O,C,=29·10'm) ·4 RSD/m\, C,„ =983·10* e =983000 e (12) This price of the gas can also be corrected up to ...David Petrović, Lazar Kričak, Milanka Negovanović, Stefan Milanović, Jovan Marković, Nikola Simić, Ljubisav Stamenić. "Valorization of non-balanced coal reserves in Serbia for underground coal gasification" in Thermal Science (2019). https://doi.org/10.2298/TSCI190725390P
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The Newton method for solving nonlinear equations based on aggregation operators
Nebojša M. Ralević, Dejan Ćebić (2019)Nebojša M. Ralević, Dejan Ćebić. "The Newton method for solving nonlinear equations based on aggregation operators" in XLVI International Symposium on Operational Research SYM-OP-IS, Kladovo, 15-18.9.2019, Универзитет у Београду (2019)
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Mineral Resources of Serbia: Environmental, Societal and Economic Challenges
... Toplica Marjanović, Milan Trumić, Ljiljana Marković. Citizens? Forum-Chairmen: Dragoslav Nikolić, Bor. Available at: http://www.rtb.rs/media/dokumenti/nt/TSD2.pdf Accessed 18 April 2018. Ličina, V., Fotirić Akšić, M., Tomić, Z., Trajković, 1., Antić Mladenović, S., Marjanović, M., and Rinklebe, ...
... Milovanović M., Popović V., Milivojević J., Staletić M., Jelić M., Perišić V. (2014). Effects of fertilization on yield and grain quality in winter triticale. Romanian Agricultural Research, No.31, p. 175-183. ĐekićV., Milovanović M., Milivojević J., Staletić M., Popović V., Simić D., Mitrović M. (2015) ...
... Chemistry - EMEC 18, Porto, Portugal, 26-29 November, 2017. Antonijevic, M., Arsovic, M., C4slavsky, J., Cvetkovic, V., Dabic, P., Franko, M., Ilic, G., Ivanović M., Ivanović, N., Kosovac, M., Medić, D., Najdanović, S., Nikolić, M., Novaković, J., Radovanović, T., Ranić, Đ., Šajatović, B., Špijunović ...Vladimir Simić, Rade Jelenković, Dragana Životić. "Mineral Resources of Serbia: Environmental, Societal and Economic Challenges" in Serbia: Current Issues and Challenges in the Areas of Natural Resources, Agriculture and Environment,, Nova Science Publishers, Inc. (2019)
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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)... koli¢ine voda koje isti¢u preko svih vrela iznose prosetno 44,5 m°/s (18,85 m?/s u Karpato-balkanidima i 26,65 m?/s u Dinaridima). Karstna lezista Karpato-balkanida odlikuju se ukupnim statickim rezervama od 9,5x10? m?’ vode, a Dinarida 6,4 x10° m? vode. Vece staticke rezerve lezista u isto¢noj Srbiji logi¢na ...
... koli¢ine vode koje se formiraju u prose¢noj hidroloskoj godini krecu se 55x10° m° (Kalafat) do 892x10° m* (Ku¢ajsko-beljanicki masiv). Ispod 100x10° m’ vode formira se u po Cetiri lezista u obe geostrukturne jedinice, a preko 200x10° m’, u Cetiri izdvojena lezista u Karpato-balkanidima (Ku¢ajsko-beljani¢cki ...
... regionalnih lezista od svega 0,1 m’/s (Kalafat) do 8,67 m?/s (Ku¢ajsko-beljanicki masiv). Ispod 0,5 m*/s vode tokom godine, drenira se preko vrela u okviru pet lezita u istocnoj i dva u zapadnoj Srbiji. S druge strane, sumarno srednje isticanje preko vrela vece od 1,0 m?/s je u okviru 15 lezi8ta (Cak 10 ...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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Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics
Maja Milošević, Predrag Dabić, Sabina Kovač, Lazar Kaluđerović, Mihovil Logar. "Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics" in Clay Minerals, Mineralogical Society (2019). https://doi.org/10.1180/clm.2019.49
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Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics
Agate veins and nodules occur in the Lece Volcanic Complex (Oligocene-Miocene) situated in the south of Serbia and occupying an area of 700 km2. This volcanic complex is composed predominantly of andesites, with sporadic occurrences of andesite-basalts, dacites and latites, and features agate formations that have been very little investigated. This study focuses on five selected agate occurrences within the Lece Volcanic Complex, employing optical microscopy, scanning electron microscopy (SEM), X-ray powder diffraction analysis, inductively coupled plasma mass spectrometry ...Zoran Miladinović, Vladimir Simić, Nenad Nikolić, Nataša Jović Orsini, Milena Rosić. "Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics" in Minerals, MDPI AG (2024). https://doi.org/10.3390/min14050511