Претрага
825 items
-
Dynamic and Static Elastic Properties - Laboratory Investigations of Metamorphites of the "Vranjska Banja" Series
Metamorphites of the series “Vranjska banja” built predominantly of high crystallinity schist series, alternately layered double mica, gneiss, leptonite and micaschist. For the construction of the “Prvonek” dam were carried out laboratory investigations of dynamic and static elastic properties on micashist and gneiss samples in the perpendicular and parallel direction to the foliation. These investigations provided monitoring of the rock mass anisotropy properties and greater reliability of the design parameteres. As the design of mining and construction facilities becomes ...Jelena Majstorović, Bojan Dimitrijević, Suzana Lutovac, Snežana Savković, Miloš Gligorić. "Dynamic and Static Elastic Properties - Laboratory Investigations of Metamorphites of the "Vranjska Banja" Series" in XVI International Conference of the Open and Underwater Mining of Minerals, Scientific and technical union of mining, geology and metallurgy (2021)
-
Simpson's rule application for experimental determining parameters of rock mass oscillation equation at limestone
By its form, the use of explosives has a destructive character. However, energy of chemical explosives is tamed and perfected in many effects, so that is developed a series of activities which work is unthinkable without the use of explosives. In mining industry, explosives are most commonly used for exploitation in hard rock mass. Thereby, large amounts of explosives can be used, especially for mass blasting. The application of large amounts of explosives gives auspicious techno – economic indicators ...working environment, seismic effects of blasting, oscillation velocity, rock mass oscillation equation, Simpson’s ruleSuzana Lutovac, Miloš Gligorić, Jelena Majstorović, Branko Gluščević, Luka Crnogorac. "Simpson's rule application for experimental determining parameters of rock mass oscillation equation at limestone" in 8th International Conference Mining and Environmental Protection, University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia (2021)
-
Izbor lokacije za deponiju pepela i nimbizam
Knežević Dinko, Ravilić Marina, Drobac Jelena, Stefanović Milica, Radivojević Sandra. "Izbor lokacije za deponiju pepela i nimbizam" in Elektroprivreda LXIV no. 4, Beograd, Srbija:JP Elektroprivreda Srbije (2011): 382-394
-
The Perception Differences Between Expert and Non-expert Audience on the Enviromentally Undesirable Facilities – The case of “Cirikovac mine” Ash Landfill
Knežević Dinko, Radivojević Sandra, Stefanović Milica, Drobac Jelena, Ravilić Marina. "The Perception Differences Between Expert and Non-expert Audience on the Enviromentally Undesirable Facilities – The case of “Cirikovac mine” Ash Landfill" in Tehnika -Rudarstvo, geologija i metalurgija 64 no. 5, Beograd, Srbija:Savez inženjera i tehničara Srbije, Beograd (2013): 837-848
-
Preliminary Results of the Analysis of Pleistocene Rodent fauna from the Hadži Prodanova Cave near Ivanjica (Western Serba)
Bogićević Katarina, Nenadić Draženko, Đurić Dragana, Milivojević Jelena, Lazarević Zorica. "Preliminary Results of the Analysis of Pleistocene Rodent fauna from the Hadži Prodanova Cave near Ivanjica (Western Serba)" in Comptes rendus de l'Académie Bulgare des Sciences (Proceedings of the Bulgarian Academy of Sciences) 7 no. 68, Sofia: (2016): 891-896
-
Application of the geodiversity index for assessment of geodiversity in urban areas: an example of the Belgrade city area, Serbia
Ilić Marina, Stojković Sanja, Rundić Ljupko, Ćalić Jelena, Sandić Dejan. "Application of the geodiversity index for assessment of geodiversity in urban areas: an example of the Belgrade city area, Serbia" in Geologia Croatica 3 no. 69, Zagreb, Croatia:Croatian Geological Institute (2016): 325-336
-
Preliminary Results of the Analysis of Pleistocene Rodent Fauna from the Hadzi Prodanova Cave Near Ivanjica (Western Serbia)
Bogićević Katarina, Nenadić Draženko, Đurić Dragana, Milivojević Jelena, Lazarević Zorica . "Preliminary Results of the Analysis of Pleistocene Rodent Fauna from the Hadzi Prodanova Cave Near Ivanjica (Western Serbia)" in COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES 69 no. 7 (2016): 891-896
-
Stratigraphic characteristics of Quaternary deposits on the left bank of the Sava River near Belgrade
Knežević Slobodan, Nenadić Draženko, Radulović Barbara, Bogićević Katarina, Zarić Jelena. "Stratigraphic characteristics of Quaternary deposits on the left bank of the Sava River near Belgrade" in Geološki anali Balkanskoga poluostrva 1 no. 79, Beograd:Rudarsko-geološki fakultet (2018): 21-30
-
Stratigraphic characteristics of Quaternary deposits on the left bank of the Sava River near Belgrade
Knežević Slobodan, Nenadić Draženko, Radulović Barbara, Bogićević Katarina, Zarić Jelena. "Stratigraphic characteristics of Quaternary deposits on the left bank of the Sava River near Belgrade" in Geološki anali Balkanskoga poluostrva 1 no. 79, Beograd:Rudarsko-geološki fakultet (2018): 21-30
-
FTIR Spectroscopic Study Of S-Metolachlor Sorption On Inorganic And Organically Modified Montmorillonite From Bogovina
... Spectroscopic Study Of S-Metolachlor Sorption On Inorganic And Organically Modified Montmorillonite From Bogovina Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] FTIR S ...
... Spectroscopic Study Of S-Metolachlor Sorption On Inorganic And Organically Modified Montmorillonite From Bogovina | Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević | 3rd International and 15th National Congress - Soils for Future under Global Challenges, Sokobanja ...
... PIC STUDY OF S-METOLACHLOR SORPTION ON INORGANIC AND ORGANICALLY MODIFIED MONTMORILLONITE FROM BOGOVINA Lazar Kaluđerović*a, Zorica Tomića, Jelena Bogosavljevića, Ljubomir Životića, Maja Miloševićb aUniversity of Belgrade, Faculty of Agriculture, Nemanjina 6, 11080 Belgrade, Serbia bUniversity ...Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević. "FTIR Spectroscopic Study Of S-Metolachlor Sorption On Inorganic And Organically Modified Montmorillonite From Bogovina" in 3rd International and 15th National Congress - Soils for Future under Global Challenges, Sokobanja, Serbia, Serbian Society of Soil Science (2021)
-
Simplified model for determining rock mass oscillation velocity at limestone deposit
Suzana Lutovac, Branko Gluščević, Miloš Gligorić, Jelena Majstorović, Rade Tokalić. "Simplified model for determining rock mass oscillation velocity at limestone deposit" in Prospects for developing resource-saving technologies in mineral mining and processing, UNIVERSITAS Publishing - Petrosani, Romania (2022)
-
Correlation of uniaxial compressive strength with the dynamic elastic modulus, p –wave velocity and s –wave velocity of different rock types
Knowing mechanical properties of rocks incorporated with ultrasonic waves velocities investigations provide a secure basis for mine modelling. Uniaxial compressive strength, dynamic elastic modulus and ultrasonic waves velocities are just some of the rock properties that indicate on presence of discontinuities, stratification and fissures of rocks. Determining the relationship of these rock properties testing the rock samples that are corresponding to different rock types extracted from different mineral deposits represents the core of this study. In this paper, we ...Jelena Majstorović, Miloš Gligorić, Suzana Lutovac, Milanka Negovanović, Luka Crnogorac. "Correlation of uniaxial compressive strength with the dynamic elastic modulus, p –wave velocity and s –wave velocity of different rock types" in Underground mining engineering, Рударско - геолошки факултет - Београд (2019)
-
Simulation of groundwater regime and quantification of groundwater balance by means of hydrodynamic analysis: Case of open-cast mine 'Jakovačka Kumša'
Hidrodinamička analiza, kao metodološki postupak, korišćena je za simulaciju režima i kvantifikaciju bilansa podzemnih voda na širem području Površinskog kopa „Jakovačka Kumša“. Istražni prostor obuhvata i deo beogradskog izvorišta podzemnih voda koje se nalazi u neposrednoj blizini površinskog kopa, u priobalju reke Save. Na površinskom kopu se vrši eksploatacija peska, koji se koristi kao građevinski materijal. Analizom i sintezom podataka koji se odnose na geološke i hidrogeološke ka-rakteristike područja, u radu je prikazan trodimenzionalni hidrogeološki model istražnog područja. Prevođenje ...hidrogeološki model, hidrodinamički model, izvorište podzemnih voda, numerička metoda konačnih razlika, ModflowDušan Polomčić, Dragoljub Bajić, Jelena Ratković, Đorđije Božović, Predrag Pajić. "Simulation of groundwater regime and quantification of groundwater balance by means of hydrodynamic analysis: Case of open-cast mine 'Jakovačka Kumša'" in Tehnika, Centre for Evaluation in Education and Science (CEON/CEES) (2019). https://doi.org/10.5937/tehnika1901056P
-
Процјена хазарда и ризика од клизишта за различите нивое просторног планирања у Републици Српској, БиХ
Цвјетко С. Сандић (2022)Територија Републике Српске је у посљедних десетак година веома угрожена активирањем нових и реактивирањем старих клизишта. Она својим дјеловањем наносе огромне материјалне штете, па и људске жртве, те је неопходно озбиљније третирање и дјеловање у борби са овим природним хазардом. Чест проблем јесте одговорност, тј. надлежност институција из ове области и недостатак у законској регулативи која готово никако или само површно обрађује област хазарда и ризика од клизишта. Усљед непостојања праксе и усвојених методологија које су у примјени у свијету, циљ ...Цвјетко С. Сандић. Процјена хазарда и ризика од клизишта за различите нивое просторног планирања у Републици Српској, БиХ, Београд : [Ц. Сандић], 2022
-
Using English Baits to Catch Serbian Multi-Word Terminology
In this paper we present the first results in bilingual terminology extraction. The hypothesis of our approach is that if for a source language domain terminology exists as well as a domain aligned corpus for a source and a target language, then it is possible to extract the terminology for a target language. Our approach relies on several resources and tools: aligned domain texts, domain terminology for a source language, a terminology extractor for a target language, and a ...aligned texts, word alignment, terminology extraction, electronic dictionaries, morphological inflection... We have used two bilingual lexical resources. (a) Serbian Wordnet (SWN) (Cvetana Krstev, 2013) that is aligned to the Princeton WordNet (PWN)9 and (b) a bilingual list con- taining general lexica with 10,551 English/Serbian entries. The production of the bilingual list of inflected forms was done in ...
... lly evaluate extracted nominal phrases in the target language terminology by aligning it with the es- tablished terminology in the source language; (b) to build a classifier that would evaluate as positive automatically caught Serbian terminology using English baits. As an ad- ditional result we enriched ...
... Krstev, C. (2008). Processing of Serbian. Automata, Texts and Electronic Dictionaries. Faculty of Philology of the University of Belgrade. Moirón, B. V. and Tiedemann, J. (2006). Identifying id- iomatic expressions using automatic word-alignment. In Proceedings of the EACL 2006 Workshop on Multi-word ...Cvetana Krstev, Branislava Šandrih, Ranka Stanković. "Using English Baits to Catch Serbian Multi-Word Terminology" in Proceedings of the 11th International Conference on Language Resources and Evaluation, LREC 2018, Miyazaki, Japan, May 7-12, 2018, European Language Resources Association (ELRA) (2018)
-
Application of stochastic models for mine planning and coal quality control
... the Monte Carlo integration method we used. Let f be a function, and IV(f) the definite integral of that function: I f X X X f X X X fV a b a b n a b n n n ( ) ( , , , ) ( )� �d d d x1 2 1 2 1 1 2 2 � � � dx � l (8) on the region of integration: Stevanovi}, D. R., et al.: ...
... the definite integral of that function: (7) hb, by — T(f)= JdX, dX)... JAN IM Kase XW =[PCOdx (8) a a a, on the region of integration: V a b a b a bn n� � � �[ , ] [ , ] [ , ]1 1 2 2 � (9) Monte Carlo approximation of this definite integral is calculated using: A f V N fn i i ( ) | | ( ...Dejan Stevanović, Božo Kolonja, Ranka Stanković, Dinko Knežević, Mirjana Banković. "Application of stochastic models for mine planning and coal quality control" in Thermal Science, Belgrade : Vinča Institute of Nuclear Sciences (2014). https://doi.org/10.2298/TSCI130201031S
-
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 ...... the 'Energy Institute, 81 (2008), 1, pp. 7-13 &] Bowen,B. H., Irwin, M. W., Underground Coal Gasification (UCG), Indiana Center for Coal Technology Research, Educational Outreach, Indiana Coal Report 2009, Indiana, USA, 2009 9] Djordjević, B., ef al., A Collection of Tasks in Thermodynamics with ...
... Cirikovac) [14] would be: E,, = O„Hoo,) = 7313-10* kg -9922 -10* J/kg = 72560 GJ which is E, =20GWh (5) u, — As an example, for TPP Kostolac A+B, the total installed capacity of 1007 MW gen- erates energy of 6256 GWh, which is * 6.21 GWh. Previously calculated available energy potential of ...
... 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 received syngas ...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
-
Оптимизација управљања процесима рекултивације површинских копова угља
Bojan S. Dimitrijević (2014-05-30)Ширење површинске експлоатације минералних сировина а нарочито енергетских ресурсафосилних горива, чине површинске копове угља просторно доминантним објектима великих рударскихбасена како у нас тако и у свету. Експлоатациона активност, прати негативне еколошке утицаје наживотну средину шире околине, што нас обавезује на интегрално планирање, ревитализацију,рекултивацију и уређење нарушеног простора за његово поновно хумано коришћење упостексплоатационом периоду. Постексплоатационо санирање и уређење предела површинских коповаи одлагалишта односно нарушеног простора изазваног рударским радовима и пратећих објеката,представља синтетички мултидисциплинарно-интердисциплинаран веома комплексан вишефазниинжењерски пројектни задатак.У уводном ...рекултивација, постексплоатациони предео, површински коп угља,вишеатрибутна анализа, одлучивање, процеси, рекултивационо решење... метода PROMETHEE II. Метода PROMETHEE уводи функцију преференције P(a,b) за алтернативе a и b које су вредноване критеријумским функцијама (означимо једну од њих са f). Алтернатива a je боља од b према критеријуму f ако je f(a) > f(b). Функција преференције ce дефинише на следећи начин: ⎩ ⎨ ⎧ >− ...
... критеријумску функцију према усвојеном типу преференције. Функција преференције Р(а, b )ce односи на једнокритеријумско упоређивање алтернатива a и b . Вишекритеријумски индекс преференције алтернативе a над b дефинисан je изразом ∑∏ = = n i ii baPwba 1 ),(),( (4.50) где je п - број ...
... чине: Роторни багер SRs 2000 32/5 + VR, транспортери са траком B = 2000 mm (4 ком.), и одлагач А2Rs-B 8500*60. � II БТО систем чини: Роторни багер SchRs 630 25/6 и самоходни транспортер BRs 1400 (37+50)*16, транспортери са траком B = 1600 mm (4 ком.), и одлагач ARs (BRs) 1600 (28+50)*17. По ...Bojan S. Dimitrijević. "Оптимизација управљања процесима рекултивације површинских копова угља" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-05-30)
-
In-vitro ispitivanje interakcija dva strukturno slična Rh(III) kompleksa Šifovih baza sa HSA/DNK i molekulski doking
Aleksandar Mijatović, Ljubica Bacetić, Nikola Pavlović, Dušan Ćoćić, Milan Nikolić, Aleksandar Lolić, Rada Baošić (2021)Kompleksi metala sa tetradentatnim Šifovim bazama ispoljavaju različitu biološku aktivnost, što omogućava ciljne sinteze novih biološki aktivnih jedinjenja. Proučavane su interakcije H[Rh(acac2en)Cl2] (1) i H[Rh(phacac2en)Cl2] (2) sa humanim serum albuminom (HSA) i sa DNK, primenom fluorescentne i UV-Vis spektroskopije (298 K, pH 7,4). Dobijene su relativno visoke vrednost dinamičke konstante vezivanja (Ksv) i to 3,88·104 M-1 za (1), 7,02·104 M-1 za (2), što ukazuje na značajno vezivanje za HSA. Izračunate konstante unutrašnjeg vezivanja (Kb) su: 2,87·105 M-1 ...Aleksandar Mijatović, Ljubica Bacetić, Nikola Pavlović, Dušan Ćoćić, Milan Nikolić, Aleksandar Lolić, Rada Baošić. "In-vitro ispitivanje interakcija dva strukturno slična Rh(III) kompleksa Šifovih baza sa HSA/DNK i molekulski doking" in 57. savetovanje Srpskog hemijskog društva , Dušan Sladić (2021)
-
Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija
Aleksandar D. Krstić, Aleksandar Đ. Lolić, Marija A. Ilić, Aleksandar M. Mijatović, Snežana J. Zlatanović, Zoran P. Nedić, Vesna M. Pavelkić (2015)Biougalj se dobija pirolizom iz organskog otpada. Smatra se ,,modifikatorom'' zemljišta i koristi se kao đubrivo i kao rezervoar za skladištenje ugljenika. Kvantifikacija funkcionalih grupa je važna zbog hemijske reaktivnosti biougljeva koji imaju uticaj na svojstva zemljišta. U istraživanju su korišćena 3 uzorka biouglja različitog porekla i jedan referentni, aktivni ugalj. Sadržaj kiselih funkcionalnih grupa je određivan titracijom po Boehm-u na dva načina: uvođenje N2 tokom titracije i tretman sa BaCl2. Optimizovan je način pripreme tri Boehm ova rastvora ...... was funded by the Ministry of Education, Science and Technological Development od the Republic of Serbia, Project No. 172051 Reference 1. Rivka B. Fidel, David A. Laird, Michael L. Thompson, Journal of Environmental Quality 42 (2013) 1771-1778 ...Aleksandar D. Krstić, Aleksandar Đ. Lolić, Marija A. Ilić, Aleksandar M. Mijatović, Snežana J. Zlatanović, Zoran P. Nedić, Vesna M. Pavelkić. "Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija" in 52. savetovanja Srpskog hemijskog društva, Srpsko hemijsko društvo (2015)