Претрага
369 items
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Природни потенцијал минералних вода Србије - Natural potential of mineral waters in Serbia
Оливера Крунић (2021)Оливера Крунић. "Природни потенцијал минералних вода Србије - Natural potential of mineral waters in Serbia" in Рационално коришћење земљишта и вода у Србији - Sustainable Use of Land and Water in Serbia- Serbian Academy of Sciences and Arts; Scientific Conferences Volume CXCVII; Department of Chemical and Biological Sciences, Book 19, Српска академија наука и уметности (2021)
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Određivanje broja kamiona za transport jalovine na površinskom kopu „Šuplja Stijena“
Siniša Bujišić (2024)U radu će se govoriti o praktičnoj primeni programskog paketa Talpac za određivanje broja kamiona za transport jalovine na površinskom kopu „Šuplja Stijena“, kao i o ulozi i značaju ovog programa u savremenom rudarstvu. Na osnovu ulaznih podataka i informacija vezanih za Šuplju Stijenu, uz pomoć programskog paketa Talpac izvršeno je projektovanje transportnih trasa. Transportne trase projektovane su tako da obezbede siguran rad ljudstva i opreme, a optimizovane su po pitanju transportnih dužina i organizacije proizvodnje. Kako bi se ...... relacije od otkopnog mesta za konkretnu fazu do postrojenja za pretkoncentraciju. Prema planu, rad osnovne rudarske opreme predviđen Je 365 dana u godini, u 2 Siniša Bujišić R44/20 smene od po Š časova. Plan godišnjeg broja radnih sati prikazan je u tabeli 5.3. Tabela 5.3 Organizacija rada na kopu ...
... grad Pljevlja (B) i železničku stanicu Prijepolje (C) ........aaaaaaaaa a anaa a aaaaaaaaaaaaaaaaaeaaaaataaaaaeaaatakaeat 47 Slika 5.2 Geološki plan - podužni profil (od 1365m do 1472 m, azimut 160, pad -6, dužina 1000m) ležišta "Šuplja Stijena" „.Sdaaaaaaaaaadd a aaaaiaiaeeea a iii iiiaaaaeee ...
... intenziteta. Kosi profil (od 1365 m do 1472, azimut 160, pad -6) Ime - Istocna struktura 7 stara jama }}} Zapadna struktura Slika 5.2 Geološki plan - podužni profil (od 1365m do 1472 m, azimut 160, pad -6, dužina 1000m) ležišta "Suplja Stijena" 49 Završni rad Siniša Bujišić R44/20 Distribucija ...Siniša Bujišić . Određivanje broja kamiona za transport jalovine na površinskom kopu „Šuplja Stijena“, 2024
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Upravljanje proizvodnjom nafte – novi alat na bazi fazi logike
... države. 3. PLAN NAMENE RADIO-FREKVENCIJSKIH OPSEGA Planom namene radio-frekvencijskog opsega utvrđuje se namena radio-frekvencijskih opsega u svakoj državi za pojedine radio-komunikacione službe u skladu sa propisima o radio-komunikacijama Međunarodne unije za telekomunikacije (ITU). Plan namene ima ...
... nivou. - Poslovna strategija - obezbeđenje mogućnosti korišćenja ICT - Usklađivanje ICT strategije - obezbeđenje uslova da se ICT planovi integrišu u strategijski plan preduzeća Preduzetništvo, inženjerstvo i menadžment ...
... vezanim za prostor, odnosno državu gde deluje. U skladu sa tim, nacionalna regulatorna tela donose Plan namene radio-frekvencijskih opsega koji predstavlja osnov za upravljanje radio-frekventnim spektrom. Plan namene sadrži informacije o radio-frekvencijskim opsezima te definiše njihovu namenu, način upotrebe ...Мирослав Црногорац, Душан Даниловић, Лола Томић. "Upravljanje proizvodnjom nafte – novi alat na bazi fazi logike" in IX Naučno stručni skup Preduzetništvo, inženjerstvo i menadžment Zrenjanin, 24.10.2020. god., Visoka tehnička škola strukovnih studija u Zrenjaninu (2020)
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INVENTS: A Hybrid Mine Ventilation Planning and Design System
Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...... interactively connected and the software package can successfully be used in the analysis of ventilation system stability for mine defense and rescue plan verification within mine ventilation services, design and research companies. Fig. 4. Examples of interface forms for the ResNet software package ...Lilić Nikola, Stanković Ranka, Obradović Ivan. "INVENTS: A Hybrid Mine Ventilation Planning and Design System" in Proceedings of International Scientific Conference of FME Session 4: Automation Control and Applied Informatics , Hong Kong : iConcept Press (2013)
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Influence of DEM resolution on numerical modelling of debris flows in RAMMS - Selanac case study
Debris flows induced by intensive rainfall represent very hazardous phenomena in many parts of the World. Methods for prediction of runout distance of flow like mass movements are different and depending on the input data, rheology, and available or appropriate numerical solution. However, sometimes it is not easy to obtain pre event and post event high-resolution data in the rural or mountainous area. Thus, the topology of terrain is the most important input parameter for the every real case ...... s. The surface induces a local coordinate system x, y, z (Christen et al., 2010a) . It is discretized such that its projection onto the X, Y plane results in a structured mesh (from Christen et al., 2010a)(Fig. 1). Case study Selanac debris flow was triggered after extreme rainfall event ...Jelka Krušić, Biljana Abolmasov, Mileva Samardžić Petrović. "Influence of DEM resolution on numerical modelling of debris flows in RAMMS - Selanac case study" in 4th Regional Symposium on Landslides in the Adriatic Balkan Region, 23-25 October 2019, Sarajevo, Bosnia and Herzegovina, Geotechnical Society of Bosnia and Herzegovina (2019). https://doi.org/ 10.35123/ReSyLAB_2019
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INVENTS: a hybrid system for subsurface ventilation analysis
Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...... interactively connected and the software package can successfully be used in the analysis of ventilation system stability for mine defense and rescue plan verification within mine ventilation services, design and research companies. Fig. 4. Examples of interface forms for the ResNet software package ...Nikola Lilić, Ranka Stanković, Ivan Obradović. "INVENTS: a hybrid system for subsurface ventilation analysis" in Proc. of International Scientific Conference of FME, September 2000, Ostrava, FME (2000)
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Why classical sequence stratigraphy doesn't work in Pannonian basin?
Dejan Radivojević (2018)... systems tract the early one usually has thinnest sediments. In big grabens, seismic reflections appearance is frequently divergent toward fault plane so they have wedge shape. Because of active faulting sediments are frequently tilted. The late rift climax systems tract (S3c) differ from middl ...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)
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Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine
Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović (2019)Availability is one of the most used terms in maintainability engineering. This concept is used to denote: The quality of service of an engineering system, i.e., machines, weak points’ analysis, asset management, as well as making decisions in the process of life cycle management. Availability is an overall indicator and contains partial indicators that are oriented towards reliability, maintenance, and logistical support. Availability presents a variable value and changes in time and space. Usually, availability is shown as the ...... terms of time and work organization. Diagnosis is simple. Repairs are quick. No corrosion. Defective parts are not of a large mass. It is possible to plan time and work organization. • ‘B’(M)—Quick identification of weaknesses is possible (errors, faults . . . ). It is constructively easy to repair. ...
... constructive nature, inaccessibility of parts, due to the appearance of corrosion, the mass of the element, and the like. • ‘D’(M)—It is not possible to plan the duration of the intervention and the organization of work. There are a number of complications during dismantling and assembly. • ‘E’(M)—The breakdown ...
... is remote. Every utilization of the machine is full of unpredictability due to inadequate training, logistical support, etc. It is not possible to plan activities in the context of time and organization. The second step in the formation of the synthesis model is the composition of partial parameters ...Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović. "Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine" in Energies, MDPI AG (2019). https://doi.org/10.3390/en12214044
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Development Of The Serbian Geological Resources Portal
... both recent, as well as older projects is planned in the upcoming period, as well as the trans- lation of these results into GeolISS format. We also plan to enable the export of data sets from GeolISS to GeoSciML format (http://www.geosciml.org), like BRGM French Geological Survey, CSIRO Explo- ration ...Ranka Stanković, Jelena Prodanović, Olivera Kitanović, Velizar Nikolić. "Development Of The Serbian Geological Resources Portal" in Proceedings of the 17th Meeting of the Association of European Geological Societies, Belgrade, Serbia : The Serbian Geological Society (2011)
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The Importance of Geotechnical Investigations for the Construction of Transfer Station „Prelići“ on Landfill in Cacak – Serbia
For the purpose of the facilities construction within the transfer station „Prelici“ in Cacak, specific geotechnical investigations were carried out based on which the technological project with the facilities schedule was developed. Significant deviations in relation to the presented results were determined during earthworks, so the additional geotechnical investigation works were carried out. Since the new investigation works have determined a different cross section of the terrain, it was proposed to move the planned facilities which led to the ...... The landfill covers an area of about 13.5 ha, and the estimated volume of disposed waste is about 1800000 m3. The landfill is formed in alluvial plane of the left valley side of the West Morava River, i. e. left valley side of the Atenica River, which also represents eastern border of the landfill ...Dragoslav Rakić, Irena Basarić, Jovana Janković, Tina Đurić. "The Importance of Geotechnical Investigations for the Construction of Transfer Station „Prelići“ on Landfill in Cacak – Serbia" in 17th International waste management and landfill symposium, Proceedings SARDINIA 2019, CISA Publisher (2019)
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Analiza pouzdanosti dozera angažovanih na površinskim kopovima RB Kolubara
U radu je izvršena uporedna analiza pouzdanosti transportnih sistema dozera koji rade na površinskim kopovima Rudarskog basena Kolubara. Period za koji je vršena analiza je prvih deset godina eksploatacije. Efikasnost tehnološkog procesa na otkopavanju korisne mineralne sirovine i otkrivke u velikoj meri zavisi od rada dozera. Iskorišćene su matematičke metode za aproksimaciju i identifikaciju zabeleženih vremena u radu, kako bi se dobili analitički pokazatelji pouzdanosti. Na ovaj način se bitno podiže kvalitet upravljanja procesom eksploatacije i održavanja mašina na ...... (god) Prosečno vreme rada (mh) Godišnje vreme rada (mh) Dozer 8.3 27.497 3.124 Planski zastoji dozera definisani su godišnjim operativnim planom i vezani su za preventivno održavanje (mali, veliki servisi, itd.) koje se sprovodi sa ciljem sprečavanja ili odlaganja pojave otkaza. Neplanski zastoji ...Filip Miletić, Dragan Milčić, Miloš Tanasijević, Miloš Milovančević. "Analiza pouzdanosti dozera angažovanih na površinskim kopovima RB Kolubara" in 10th International Conference Coal 2021, Jugoslovenski komitet za površinsku eksploataciju, Zlatibor (2021)
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Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit
... effect, scattering the blasted rock mass, and similar are assumed. In order both to evaluate and control the seismic effect of blasting, as well as to plan it, the determi- nation of soil oscillation law is required, with the strike: mine field - facilities to be protected. One of the most commonly used ...
... velocity is enabled for each blast operation in ad- vance, thus blasting is, as regards seismic effect, under control, which gives an op- portunity to plan the magnitude of shock waves for each future blast operation [2]. mailto:suzana.lutovac@rgf.bg.ac.rs;%20%20nebojsa.vidanovic@rgf.bg.ac.rs;%20%20cedomir ...Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić. "Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit" in Mining and Metallurgy Engineering Bor, Bor : Mining and Metallurgy Institute Bor (2015). https://doi.org/10.5937/MMEB1503053L
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Old or New, We Repair, Adjust and Alter (Texts)
Cvetana Krstev, Ranka Stanković (2020)U ovom radu predstavljamo kako se e-rečnici i kaskade transduktora konačnih stanja implementirani u alatu Unitex mogu koristiti za rešavanje tri problema transformacije teksta: ispravljanje tekstova nakon OCR-a, vraćanje dijakritičkih znakova i prebacivanje između različitih jezičkih varijanti.ispravka teksta, OCR greške, restauracija dijakritika , jezičke varijante, elektronski rečnik, transduktori konačnih stanja... 19, No. 2, December 2019 Scientific paper Ijekavian ⇒ Ekavian the source text the output text "Na Medicinskom fakultetu u Foči ove godine u planu je multidisciplinarni program pa će moći da konkurǐsu i studenti sa srodnih fakulteta, a što se tiče ostalih, vjerovatno bi u nared- nom periodu ...
... pitanju. Zasad os- taje ovako", kaže on. Cijena školarine za godinu kreće se od 2.500 KM pa navǐse. "Na Medicinskom fakultetu u Foči ove godine u planu je multidisciplinarni program pa će moći da konkurǐsu i studenti sa srodnih fakulteta, a što se tiče ostalih, verovatno bi u nared- nom periodu ...Cvetana Krstev, Ranka Stanković. "Old or New, We Repair, Adjust and Alter (Texts)" in Infotheca, Faculty of Philology, University of Belgrade (2020). https://doi.org/10.18485/infotheca.2019.19.2.3
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Mesozoic carbonate rocks in Serbia used as dimension stone
Vesna Matović, Tijana Vojnović Ćalić (2016)The building industry in Serbia uses, to a great extent, imported natural stone for architectural purposes. The significance of local deposits, particularly limestones, is not adequately perceived despite the country’s abundance of these valuable resources. Therefore, this study focuses on Serbia’s Mesozoic carbonate rocks, specifically on the deposits of four selected quarries: Klisura, Skrzut, Struganik, and Tisnica. The quality and prospects of the application of these limestones has not yet been the subject of a detailed, comprehensive investigation. Therefore, ...... graphs of the Tisnica limestone: a Stromatolite limestones (saw-plane surface); b Fenestral texture of biolitite with geopetal structural patterns; c spherical forms of reddish-pink oncoids in oobiomicrudite (saw-plane surface); and d Completely recrystallized macrofaunal remains ...Vesna Matović, Tijana Vojnović Ćalić. "Mesozoic carbonate rocks in Serbia used as dimension stone" in Bulletin of Engineering Geology and the Environment, Springer Science and Business Media LLC (2016). https://doi.org/10.1007/s10064-015-0722-0
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An Italian-Serbian Sentence Aligned Parallel Literary Corpus
This article presents the construction and relevance of an Italian-Serbian sentence-aligned parallel corpus, delving into the aligned sentences in order to facilitate effective translation between the two languages. The parallel corpus serves as a valuable resource for language experts, researchers, and language enthusiasts, fostering a deeper understanding of linguistic nuances and cultural expressions. By bridging the gap between Serbian and Italian, this corpus opens new avenues for cross-cultural communication and collaboration, and ultimately contributes to the improvement of language-related ...Saša Moderc, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić. "An Italian-Serbian Sentence Aligned Parallel Literary Corpus" in Review of the National Center for Digitization, Belgrade : Faculty of Mathematics, University of Belgrade (2023). https://doi.org/10.5281/zenodo.11203388
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Numeričko modelovanje povećanja iskorišćenja naftnih ležišta injektiranjem polimera i analiza osetljivosti parametara
Jana Šujica (2024)U toku proizvodnje jednog ležišta, nakon primene sekundarnih metoda iskorišćenja, velika količina nafte ostaje zarobljena u ležištu. Ovaj “problem” rešava se upotrebom tercijarnih metoda iskorišćenja.Tercijarne metode mogu se podeliti na: hemijske, termičke, mikrobiološke i metode utiskivanja gasova u uslovima mešanja i nemešanja.U ovom radu analiziraju se hemijske metode koje se odnose na injektiranje polimera u cilju povećanja iskorišćenja naftnog ležišta “X”. Simulacija je rađena u simulatoru “Tnavigator” na sintetičkom modelu u cilju definisanja stepena iskorišćenja naftnog ležišta “X” nakon ...... ka i analizu ponašanja ležišta u cilju određivanja optimalnih uslova iskorišćenja. Simulacioni modeli se koriste u toku definisanja ıi razvoja plana upravljanja ležištem, kao i za nadzor ı ocenu ponašanja ležišta. Osnovna namena jedne simulacione studije je definisanje stepena iskorišćenja ležišta ...
... ponašanja ležišta. 21 Rezultat simulacione studije je predviđanje buduće proizvodnje pod postojećim uslovima i/ili nekim alternativnim razradnim planovima kao što su pogušćivanje mreže bušotina, zavodnjavanje, metode za povećanje iskorišćenja. Glavni cilj Je dizajniranje projekta iskorišćenja ležišta ...Jana Šujica. Numeričko modelovanje povećanja iskorišćenja naftnih ležišta injektiranjem polimera i analiza osetljivosti parametara, 2024
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The ‘Umka’ landslide
We present an in-depth landslide map of the ‘Umka’ landslide near Belgrade, Serbia, at a scale of 1:5000. The map delineates elements at risk, primarily buildings and road infrastructure impacted by the landslide displacements of several cm per year, introduced during frequent reactivation stages. The Main map results from a survey of over 350 buildings and more than 7 km of state and local roads. The acquisition techniques included engineering geological field mapping, building survey, and visual interpretation of ...rizik od klizišta, elementi rizika, kartiranje pomoću drona, ispitivanje objekata, geotehnički monitoringUroš Đurić, Dragana Đurić, Miloš Marjanović, Biljana Abolmasov, Ivana Vasiljević. "The ‘Umka’ landslide" in Journal of Maps, Informa UK Limited (2024). https://doi.org/10.1080/17445647.2024.2418580
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Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides
Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor (2019)Internal Dinarides, Drina-Ivanjica thrust sheet, Deformation history, K–Ar dating, Obduction, Structural analysis... structure has been observed to be associated with the D, phase except for the rare occurrence of a So» crenulation cleavage (folding the S, axial plane cleavage) in carbonate layers of the Paleozoic and in the Northern Triassic unit. K. Porkolab et al. Dxy structures are dominantly strike-slip ...
... layers in the Drina-Ivanjica Paleozoic (outcrop 032). c Thin section from outcrop 006 (Drina-Ivanjica Paleozoic) showing buckling of the So bedding plane and related S, axial planar Well-preserved fossils and carbonate texture, no sign-of crystalplastic-deformation (D1) cleavage defined by solution ...
... between the calculated shear stress vector of a particular fault and the absolute value of the vector that is requisite to produce slip on that plane. Phi (0) is the ration of stress axes (O> — Ox3)/(C; — O>) results of the measurements. However, if the system reached the high-temperature anchizone ...Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor. "Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides" in Swiss Journal of Geosciences (2019)
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Priprema ležišta bakra i zlata za primenu metode podzemnog otkopavanja u pojasevima iznad XIX horizonta
Strahinja Petković (2024)Ovaj rad se fokusira na primenu metode otkopavanja sa zasipavanjem otkopnog prostora na primeru ležišta bakra.Analizirani su ključni elementi, uključujući geološke karakteristike ležišta, tehničko-eksploatacione faktore, dimenzionisanje prostorija, pripremne radove, bušačko-minerske aktivnosti, utovar i transport, ventilaciju i zasipavanje otkopanog prostora pastom zasipom. Takođe je, sprovedena analiza troškova, uključujući cenu izrade pripremnih prostorija po dužnom metru, u zavisnosti od kvaliteta radnog okruženja. Na kraju su definisani osnovni pokazatelji otkopavanja ležišta, uključujući količinu rude u otkopnom pojasu, kao i koeficijente iskorišćenja i ...... mineralizaciju. Ovi nalazi su bili ključni za dalju procenu ekonomskog potencijala ležišta i planiranje eksploatacionih radova. Slika 3 Situacioni plan istražnih radova 2.4.Kvalitet mineralne sirovine Kvalitet rude obuhvata sadržaj korisnih i štetnih komponenti, mogućnost izdvajanja korisnih elemenata ...
... e ležišta izvedeno je kroz bušenje i radove u Jami, gde je kreirana kvalitetna baza podataka za analizu. Na osnovu tih podataka, razvijeni su planovi za otvaranje i eksploataciju. Geološki model je pokazao da ležište ima značajne rezerve, s velikim volumenom rude i visokom koncentracijom bakra ...
... relativno veliki gubici i osiromašenje rude, analize troškova i prihoda pokazale su da se ovi nedostaci mogu nadoknaditi prihodima od prodaje sirovine. Plan otkopavanja Je omogućio postepeni rast kapaciteta eksploatacije, sa maksimalnim kapacitetom od 1.815.000 tona godišnje, što Je omogućilo ukupno ...Strahinja Petković. Priprema ležišta bakra i zlata za primenu metode podzemnog otkopavanja u pojasevima iznad XIX horizonta, 2024
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Modeliranje buke u zoni površinskog kopa Ljubija ležišta Ciganuša - Škorac
Teodora Kaličanin (2024)Svaki neželjeni zvuk u prirodi se može definisati kao buka. Buka svakodnevno utiče na ljude i predstavlja pretnju po ljudsko zdravalje. Zbog toga su nastale mnoge metode za merenje, proračun i saniranje ovog problema.Tema ovog završnog rada master studija je modeliranje buke u zoni površinskog kopa ''Ljubija''. Opisani su pojam buke i zvuka kao osnov za kasnije iznesene podatke, kao i tipovi i različiti izvori buke. Prikazane su metode merenja buke i uređaji koji se u tom procesu koriste. Obrađen ...... pouzdan podatak. Da bi se mogao upotrebiti softver SoundPlan, neophodno je definisati model radilišta (lokacije) na osnovu određenih karti ili planova. Otvorena radilišta su često kompleksna pre svega zbog njihove promenijive prirode i velikog broja aktivnosti koje su prisutne na takvom jednom ...
... radilištu, kao ı zbog karakteristika terena, koji ta radilišta zauzimaju (posebno je to izraženo kod površinskih kopova). Nakon što korisnik unese plan lokacije, softver automatski određuju efekti rastojanja, filtriranja (usled barijera), refleksije itd, i potom se računa nivo buke koja potiče od ...
... za njenu pripremu. Budući da je izabrana mehanizacija, odnosno pre svega tip opreme i obim njenog angažovanja u funkciji ispunjenja određenih planova i dinamike proizvodnje (jalovine i rude), raspoložive mere, za snižavanje nivoa buke koja potiče od ovih izvora, su prilično ograničene. Moguće ...Teodora Kaličanin. Modeliranje buke u zoni površinskog kopa Ljubija ležišta Ciganuša - Škorac, 2024