Претрага
139 items
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Linear-motor plunger pump increases lifting efficiency
Bojan Martinović, Dušan Đekić, Dušan Danilović, Pavel Isaev. "Linear-motor plunger pump increases lifting efficiency" in Oil & Gas Journal (2022)
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English for Geology Students. 1
Lidija Beko (2023)... of the Crystals was only accessible due to the pumping equipment used by the mining company. In 2015, the Cave was allowed to flood when mining operations cease and so the crystals may once again begin to grow! ___ Using the web pages below, and any others you can find, write a description of how ...Lidija Beko. English for Geology Students. 1, Belgrade : The Faculty of Mining and Geology, 2023
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Improving efficiency of thermal power plants through mine coal quality planning and control
Главни циљ контроле квалитета угља у рудницима лигнита је снабдевање термоелектрана угљем чији квалитет мора да се креће унутар одређених квалитативних ограничења. Карактеристике угља могу да утичу на ефикасност, поузданост и расположивост како котла тако и јединица за контролу емисије. У овом раду аутори су презентовали интегрисану симулацију рударског процеса као нови приступ у истраживању променљивости калоричне вредности угља приликом експлоатације комплексног лежишта лигнита. Резултати таквог приступа омогућавају драгоцен увид у перформансе континуалног рударског система у смислу контроле променљивости ...Mirjana Banković, Dejan Stevanović, Milica Pešić, Aleksandra Tomašević, Ljiljana Kolonja. "Improving efficiency of thermal power plants through mine coal quality planning and control" in Thermal Science, Vinča Institute of Nuclear Sciences (2018). https://doi.org/10.2298/TSCI170605209B
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Primena programa UVSZ pri zaštiti od miniranja
Primena energije eksploziva tj. miniranje, predstavlja osnovni način eksploatacije čvrstih mineralnih sirovina u rudarstvu. Miniranjem se postižu vrlo povoljni tehnoekonomski pokazatelji, koje nažalost prate i negativni efekti miniranja. U cilju zaštite životne sredine potrebno je za svaku radnu sredinu odrediti jednačinu oscilovanja stenske mase pri miniranju. Ova jednačina definiše promenu brzine oscilovanja stenske mase u zavisnosti od rastojanja, količine eksploziva, uslova izvođenja miniranja i geoloških karakteristika stenske... Energy Materials, 11 (2), 48 − 62. DOI: 10.22211/matwys/0178 ISSN 2083-0165 [3] Coltrinari, G. (2016). Detecting seismic waves induced by blast operations at a limestone quarry by means of different transducer mounting. Int. J. Sustain. Dev. Plan., 11, 959–969. [4] Kabwe, E., & Wang, Y.M. (2016) ...
... Energy Materials, 11 (2), 48 — 62. DOI: 10.2221 1/matwys/0178 ISSN 2083-0165 [3] Coltrinari, G. (2016). Detecting seismic waves induced by blast operations at a limestone quarry by means of different transducer mounting. Int. J. Sustain. Dev. Plan., 11, 959-969. [4] Kabwe, E., & Wang, Y.M. (2016). Airblast ...Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac, Rade Tokalić. "Primena programa UVSZ pri zaštiti od miniranja" in XIII skup privrednika i naučnika SPIN’21, Industrija 4.0 – mogu nosti, izazovi i rešenja za digitalnu transformaciju privrede, Univerzitet u Beogradu, Fakultet organizacionih nauka (2021)
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Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings
... the seismic wave are influenced by rock mass properties, and by blasting conditions. For evaluation and control of the seismic effect of blasting operations, the most commonly used equation is that of M.A. Sadovskii. Sadovskii’s equation defines the alteration in the velocity of rock mass oscillation ...
... Measurements of seismic shocks at the Nepričava open pit were performed during blasting, conducted for deposit exploitation [18]. Three blasting operations were performed. Balkanit 60/1000 and Videksil 65/2000 (Videks Company, Sofia, Bulgaria) were used as explosive materials. The activation of explosives ...
... S.; Medenica, D.; Gluščević, B.; Tokalić, R.; Beljić, Č. Some models for determination of parameters of soil oscillation law during blasting operations. Energies 2016, 9, 617. [CrossRef] 14. Petrović, Ž. Business Statistics, Megatrend; University of Applied Sciences: Belgrade, Serbia; Faculty for ...Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić. "Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings" in Minerals, Basel : MDPI AG, Basel, Switzerland (2018). https://doi.org/10.3390/min8020070
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Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit
Sanja Bajić, Dragoljub Bajić, Branko Glušćević, Radmila Gaćina. "Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit" in 9th International Conference Mining and Environmental protection MEP, 24 – 27 May 2023, Sokobanja, Serbia , Belgrade : University of Belgrade-Faculty of mining and geology (2023)
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Multivarijabilni modeli upravljanja u rudarstvu
Marjan M. Hudej (2014-02-03)osetljivost i rizik. Više pobuda generiše ovakvu atribuciju. Prva je, multivarijabilnostambijentalnih uslova i funkcionalna i strukturna složenost rudarskih sistema (čovek -priroda (radna sredina) - mašina – okruženje); Druga se odnosi na ne postojanje opštenaučne saglasnosti oko ocene pogodnosti modela za podršku odlučivanju i upravljanje.Treća, ako bi saglasnost i postojala, nije sigurno da bi raspoloživi modeli, metode i taktike,dale ekvivalentne rezultate za iste rudničke uslove. Četvrta, sistemske nauke još uveknemaju opšte prihvaćen i u praksi primenljiv algoritam izbora najboljeg rešenja ...... 2011, 633-637. 105. Vujić, S., Miljanović, I., i dr., Multiattributive prediction of terrain stability above underground mining operations, Yugoslav Journal of Operations Research, Vol. 21, Num. 2, 2011, 275-291. 106. Vujić S., Hudej M. i dr., Results of the promethee method application in selecting ...
... nal Journal of Operational Research i Asia Pacific Journal of Operational Research, broj odrednica je u proseku manji od deset. U Interfaces Operations Research Journal, koji povremeno izdaje posebnu svesku posvećenu primeni operacionih istraživanja u rudarstvu, broj predmetnih odrednica je 17 ...
... istraživanjima (SymOpIs) saopšteno je i objavljeno više od 400 radova na ovu temu, a u uglednom međunarodnom časopisu YUJOR (Yugoslav Journal of Operations Research) koji izlazi u Beogradu, preko 70 radova. U komparativnom pozicioniranju doktorske disertacije sa istraživanjima, dostignućima i trendovima ...Marjan M. Hudej. "Multivarijabilni modeli upravljanja u rudarstvu" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-02-03)
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Multivarijabilni modeli upravljanja u rudarstvu
Marjan M. Hudej (2014-02-03)osetljivost i rizik. Više pobuda generiše ovakvu atribuciju. Prva je, multivarijabilnostambijentalnih uslova i funkcionalna i strukturna složenost rudarskih sistema (čovek -priroda (radna sredina) - mašina – okruženje); Druga se odnosi na ne postojanje opštenaučne saglasnosti oko ocene pogodnosti modela za podršku odlučivanju i upravljanje.Treća, ako bi saglasnost i postojala, nije sigurno da bi raspoloživi modeli, metode i taktike,dale ekvivalentne rezultate za iste rudničke uslove. Četvrta, sistemske nauke još uveknemaju opšte prihvaćen i u praksi primenljiv algoritam izbora najboljeg rešenja ...... 2011, 633-637. 105. Vujić, S., Miljanović, I., i dr., Multiattributive prediction of terrain stability above underground mining operations, Yugoslav Journal of Operations Research, Vol. 21, Num. 2, 2011, 275-291. 106. Vujić S., Hudej M. i dr., Results of the promethee method application in selecting ...
... nal Journal of Operational Research i Asia Pacific Journal of Operational Research, broj odrednica je u proseku manji od deset. U Interfaces Operations Research Journal, koji povremeno izdaje posebnu svesku posvećenu primeni operacionih istraživanja u rudarstvu, broj predmetnih odrednica je 17 ...
... istraživanjima (SymOpIs) saopšteno je i objavljeno više od 400 radova na ovu temu, a u uglednom međunarodnom časopisu YUJOR (Yugoslav Journal of Operations Research) koji izlazi u Beogradu, preko 70 radova. U komparativnom pozicioniranju doktorske disertacije sa istraživanjima, dostignućima i trendovima ...Marjan M. Hudej. "Multivarijabilni modeli upravljanja u rudarstvu" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-02-03)
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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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Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria
The choice of adequate mining machines is one of the most complex problems in the underground exploitation of mineral raw materials. The weight of such a decision is reflected in the high prices of these machines and the occurrence of even greater costs during their use if their choice was wrongly conceived. There are numerous examples from practice in which such decisions were made solely on the basis of comparing the prices of machines, without considering any of the ...utovarno-transportna mehanizacija, izbor, TOPSIS, entropija, standardna devijacija, težina kriterijumaVladimir Krivošić, Luka Crnogorac, Rade Tokalić. "Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria" in Underground mining engineering, University of Belgrade - Faculty of Mining and Geology (2024)
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Допринос одређивању безопасног растојања при извођењу минирања
... attention to unfavorable effects occurring during blasting. One of these unfavorable effects refers to seismic activity caused by blasting operations. Accordingly, the adequate instrumental measurements were carried out at the facility „Kamalj” – near Mionica mine with the aim to protect ...Slobodan Trajković, Sanja Bajić, Ivan Krsmanović. "Допринос одређивању безопасног растојања при извођењу минирања" in ДИТ : Друштво истраживање технологије (2023)
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Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining
... mining with bucket-wheel type UCW-450 has been in operation for over 20 years. Based on analyzing the bucket-wheel dredger performance, productivity, maintenance costs, and reliability, a rational decision was made: to rehabilitate the most essential parts of the dredge, including the bucket wheel and the ...
... mining with bucket-wheel type UCW-450 has been in operation for over 20 years. Based on analyzing the bucket-wheel dredger performance, productivity, maintenance costs, and reliability, a rational decision was made: to rehabilitate the most essential parts of the dredge, including the bucket wheel and the ...
... recorded a large difference in cutting resistance, which was especially manifested in the drop of bucket-wheel excavator productivity, increased maintenance costs, and lower reliability. According to the previous findings, there was a need to rehabilitate the most essential parts of the dredger, bucket ...Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić. "Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining" in Minerals, MDPI AG (2021). https://doi.org/10.3390/min11060564
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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 ...... bulky household waste etc.). The transfer station complex itself contains technological units which are defined by zones in which different working operations are carried out: receiving-departure zone, transporter zone, zone for receiving and temporary storage of recyclable waste and specific waste, zone ...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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Synergy between the mineral deposit exploration and geothermal resources assessment on the example of "Valjevo" boron and lithium deposit in Serbia
Nebojša Atanacković, Vladimir Živanović, Ana Vranješ, Sava Magazinović, Marinko Toljić, Ana Arifović, Branislav Potić (2023)Exploration of mineral deposits involves a collection of vast data sets on geological characteristics of the area. These data can largely contribute to the assessment of the geothermal potential, which can lead to an increase in the share of geothermal resources in the energy mix of the extractive industry and the local community. On the example of the "Valjevo" B-Li deposit, data on structural settings and previous hydrogeological investigations were combined with the results of resource drilling and geophysical ...... Serbia 1. INTRODUCTION The research community and the mining industry are making efforts to improve the environmental performance of mining operations by shifting to renewable energy. Previous studies showed that mineral exploration data and the expertise from the mining industry could help identify ...Nebojša Atanacković, Vladimir Živanović, Ana Vranješ, Sava Magazinović, Marinko Toljić, Ana Arifović, Branislav Potić. "Synergy between the mineral deposit exploration and geothermal resources assessment on the example of "Valjevo" boron and lithium deposit in Serbia" in Proceedings 9th International Conference mining and environmental protection, MEP23, Sokobanja, 24-27th May 2023, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet (2023)
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GIS Application Improvement with Multilingual Lexical and Terminological Resources
... data, and allows users to create interactive queries, analyze spatial information, edit data and maps, and present the results of all these operations. Data modeling is inspired by different geological models (Richard, Matti, Soller, 2003), interchange schemes (SEE Grid, 2009), and standards ...Ranka Stanković, Ivan Obradović, Olivera Kitanović. "GIS Application Improvement with Multilingual Lexical and Terminological Resources" in Proceedings of the 5th International Conference on Language Resources and Evaluation, LREC 2010, Valetta, Malta, May 2010, Valetta, Malta : European Language Resources Association (2010)
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OER obrazovni sadržaji kao spona između akademskog i preduzetničkog znanja
... Times,162(56113), 2013, 1–7. [12] A. Agarwal. ‘Circuits and Electronics’. Mix. Chronicle of Higher Education, 59(6), 2012, B10. [13] M. Allon. ‘Operations Management’, Udemy. Chronicle of Higher Education, 59(6), 2012, B10–11. [14] J. Rice. What I learned in MOOC. College Composition and Communication ...Ivan Obradović, Ranka Stanković, Marija Radojičić. "OER obrazovni sadržaji kao spona između akademskog i preduzetničkog znanja" in The fifth Symposium Mathematics and Applications 2014,17-18 October 2014, Belgrade V no. 1, Beograd : Matematički fakultet Univerziteta u Beogradu (2014)
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Development of A Business Intelligence Tool For Accident Analysis in Mines
... ICT support systems and tools have been developed and implemented, such as diagnostic and prognostic decision support systems, computerized maintenance management systems (CMMS) and enterprise resource planning systems (ERP). Similar to other engineering disciplines the application of ICT in ...
... analyst’s queries, so that their analytical or decision-making process is undisturbed. Online analytical processing involves several basic analytical operations, including consolidation, “drill- down” and “slicing and dicing” (Kolonja et al, 2006). In mine safety it is necessary to follow several attributes ...Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Uroš Pantelić. "Development of A Business Intelligence Tool For Accident Analysis in Mines" in Proceedings of the 5th International Symposium Mining And Environmental Protection, June 10-13, 2015, Vrdnik, Serbia, Belgrade : Faculty of Mining and Geology (2015)
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Eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje
U radu su analizirani eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje. Period analize je prvih šest meseci tekuće godine. Analiza je vršena sa aspekta ostvarene proizvodnje, kvaliteta uglja, efektivnog vremena rada, kapacitetnog i vremenskog iskoršćenja i zastoja sistema. Za poređenje podataka različitih parametara koji po svojoj prirodi nisu međusobno uporedivi, u radu su korišćene metode višekriterijumskog odlučivanja.... process. Mining Technology, 111(2), 136-142; [5] Basçetin, A. (2009). The study of decision making tools for equipment selection in mining engineering operations. Gospodarka Surowcami Mineralnymi – Mineral Resource Management, 25, 37-56; [6] Hwang, C. L., & Yoon, K. (1981). Methods for multiple attribute decision ...Marko Lazić, Filip Miletić, Milena Lekić, Veljko Rupar, Željko Petrović, Lazar Žujović . "Eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje" in 10th International Conference Coal 2021, Jugoslovenski komitet za površinsku eksploataciju, Zlatibor (2021)
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Conversion of land areas after coal mine closure and reclamation
Otkopavanje uglja površinski i podzemno praćeno je degradacijom zemljišta, promenom formiranja predela i izmenom flore i faune. Od velikog značaja je razvoj novih naučno utemeljenih pristupa obnovljanje antropogeno poremećenih predela zasnovanih na formiranju rekultivacionih i rudarskih tehnologija. Apsolutno je neophodno obezbediti sveobuhvatno kvalitetno očuvanje zemljišnih i vodnih resursa i odrediti rekultivisano zemljište za novu namenu. U ovom članku je dat pregled najpopularnijih metoda rekultivacije zemljišta i mogućnosti rekultivacije zemljišta nakon završetka rekultivacije i zatvaranja rudnika uglja.... KI The amount of investments per unit of area x K2 Investment period - investment time x K3 Time of return of invested funds x K4 Annual maintenance costs per unit surface x K5 Adaptability of the recultivation solution to the environment X Ko Local needs (local community interest) X K7 ...
... complexity of carrying out reclamation works X KIO Organizational complexity of the execution recultivation X KII Post reclamation continuous maintenance time x JInterpretation: D - Deterministic, E - Expositive, x – no alternative, x – alternatively (preferably), X — alternatively (necessarily) ...
... energy projects is very attractive for the mine”s post-closure phase. Coal mining concession areas are generally larger than the mined area. Mining operations expand progressively during the operation lifecycle of the coal mine and portions of the site can be used for renewable power production. The ...Radmila Gaćina, Bojan Dimitrijević, Sanja Bajić. "Conversion of land areas after coal mine closure and reclamation" in 9th International conference mining and environmental protection MEP 23 Proceedings, Sokobanja, 24-27.05.2023., Belgrade : University of Belgrade - Faculty of mining and geology (2023)
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Application of stochastic models for mine planning and coal quality control
... utilities operated, coal was viewed as a necessary evil and was always treated as a “pass through” cost. Although the quality of coal impacts boiler operations and subsequent power produced and emissions, utilities had no economic interest in monitoring or managing coal quality. It is preferred that feeds ...
... mine. Proper operational planning must conform to short term mine plans as well as satisfying many practical details that are unique to day to day operations. Grade control problems are usually in- corporated in the operational planning provided that the necessary detail information is known in advance ...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