Претрага

Упит dcterms_subject_txt:open-pit coal mine

566 items

  • Distribution of major and trace elements in the Kovin lignite (Serbia)

    Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović (2019)
    geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive Xray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). ...
    General Earth and Planetary Sciences, General Environmental Science
    ... trg 12–16, 11000 Belgrade, Serbia 4 Kovin coal mine, Cara Lazara 85, 26220 Kovin, Serbia doi: 10.4154/gc.2019.06 Abstract A geochemical and mineralogical study was performed on lignite samples from the Upper Mio- cene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by ...
    ... (EEF) began in 1991, and is still active. Since 1991, the Kovin mine has produced about 5 Mt of lignite, with an annual produc­ tion of ~ 300,000 t. Geological exploration of the wider area of the Kovin de­ posit, including the Kostolac coal basin, began in the late 19th century. The Upper Miocene (Pontian) ...
    ... and deposi­ tional environment of the Kipra lignite seam, Maritza­West basin, Bulgaria.– In­ ternational Journal of Coal Geology, 71, 527–541. doi: 10.1016/j.coal.2006.06.006 KOVIN MINE – OFFICIAL WEB SITE: http://www.rudnikkovin.rs/wp (last accessed June 4, 2018). KOUKOUZAS, N., WARD, C. & LI, Z. ...

  • A Data Driven Approach for Raw Material Terminology

    Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja (2021)
    The research presented in this paper aims at creating a bilingual (sr-en), easily searchable, hypertext, born-digital, corpus-based terminological database of raw material terminology for dictionary production. The approach is based on linking dictionaries related to the raw material domain, both digitally born and printed, into a lexicon structure, aligning terminology from different dictionaries as much as possible. This paper presents the main features of this approach, data used for compilation of the terminological database, the procedure by which it has ...
    sirovine, rudarstvo, terminologija, rečnik, terminološka aplikacija, mobilna aplikacija, digitizacija, leksički podaci, korpusi, otvoreni povezani podaci
    ... ‘kvalitet uglja’ (coal quality—1110), ‘sistem upravljanja’ (management system—902), ‘procena rizika’ (risk assessment—514). • AN (29%), AXN—an adjective followed by a noun; the adjective and the noun have to agree in all four grammatical categories; examples are ‘površinski kop’ (open pit—5738), ‘ugljeni ...
    ... majority of English multi-compound terms are noun compounds. These linguistic constructions are most often composed of two or more nouns. for example, ‘coal waste’—‘jalovina’, ‘waste dump’—‘odlagalište jalovine’, ‘gas pressure’—‘pritisak gasa’. However, they can also contain three, four or more nouns, for ...
    ... lemmatized form. Frequency of each terminological phrase was calculated as the sum of frequencies of all its inflected forms. For example, ‘kvalitet uglja’ (coal quality) has a frequency of 1110 as a sum of frequencies of its forms: ‘kvalitet uglja’ (172), ’kvaliteta uglja’ (587), ‘kvalitetom uglja’ (284), ‘kvalitetu ...

  • Optimizacija utovarno-transportnih sistema u funkciji planiranja površinskog kopa

    Mirjana V. Banković (2018-07-13)
    Profitabilna eksploatacija sve složenijih ležišta je težak zadatak koji zavisi odtemeljnog procesa analize, planiranja i projektovanja rudnika. Izvodljiv strateškiplan mora da zadovoljava društvena, regulatorna, tehnološka, geometrijska iekonomska ograničenja. Kako bi se postigao osnovni cilj, odnosno profitabilnost iodrživost rudarskog projekta na duži period, neophodno je unapređenjematematičkih modela i informatičke podrške procesima planiranja i optimizacijekoji će omogućiti efikasnu realizaciju ovih ciljeva...
    tehnološki model, integralni model, planiranje, optimizacija,utovarno-transportni sistem, neto sadašnja vrednost projekta
    ... analytic hierarchy process in equipment selection at Orhaneli open pit coal mine, Mining Technology, 113 (3), 192-199. Bascetin, A., Kesimal, A., 1999, The study of a fuzzy set theory for the selection of an optimum coal transportation system from pit to the power plant. International Journal of Surface Mining ...
    ... M., Jennings, A., 2016, Impumelelo coal mine is home to the world's longest belt conveyor. Mining engineering. Englewood, USA: SME. Thompson, R., 2005, Surface strip coal mining handbook. South African Colliery Managers Association. Thorley, U., 2012, Open Pit Mine Planning: Analysis and system modeling ...
    ... Advances in Orebody Modelling and Strategic Mine Planning I. AusIMM. Benndorf, J., 2013, Application of efficient methods of conditional simulation for optimising coal blending strategies in large continuous open pit mining operations. International Journal of Coal Geology, 112, 141-153. Benndorf, J., Yueksel ...

  • Отпад из процеса сагоревања угља као сировина за добијање елемената ретких земаља

    Бојан Земљак (2024)
    Због великог броја индустрија у којима се користе ови ресурси, глобална економија се у великој мери ослања на елементе ретких земаља. Елементи ретких земаља су есенцијална сировина — материјал за развој савремених технологија, али у односу на њихову огромну потражњу, њихово вађење је ограничено и повезано је са значајним утицајима на животну средину. Због њихове ограничене доступности, проблема који се јављају при процесима експлоатације, све више и више земаља почиње да тражи повољније могућности вађења елемената [REE] из секундарних ...
    Елементи ретких земаља, резерве, употреба, представници и методе опоравка елемената ретких земаља
    ... enrichment and recovery of rare earth elements from South African coal fly ash. [172] Kashiwakura, S., Kumagai, Y., Kubo, H. and Wagatsuma, K., 2013. Dissolution of rare earth elements from coal fly ash particles in a dilute H2SO4 solvent. Open Journal of Physical Chemistry, 3(02), p.69-75. &8 [173] ...
    ... for selective extraction of rare carth elements from acid mine drainage. Journal of Hazardous Materials, 424, p.127625. [222] Huang, C., Wang, Y., Huang, B., Dong, Y. and Sun, X., 2019. The recovery of rare earth elements from coal combuston products by ionic liquids. Minerals Engineering, 130 ...
    ... utilisation prospects of coal fly ash: A review. Science of the Total Environment, 672, p.951-989. [14] Mahandra, H., Hubert, B. and Ghahreman, A., 2021. Recovery of rare earth and some other potential elements from coal fly ash for sustainable future. In Cleanm Coal Technologies: Beneficiation ...

  • Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду

    главни и одговорни уредник Душан Поломчић (2016)
    Рударско-геолошки факултет
    ... at the „Drmno“ open pit mine, Coal Basin Kostolac. Journal of Mining Science, Vol. 44, No. 3, May-June 2008, 312–319. Doi: 10.1007/s10913-008-0022-1 VUJIĆ S., ZAJIĆ B., MILJANOVIĆ I., PETROVSKI A., 2008: GPS telemetry of energetic-technical and technological parameters at open pit mines. Journal ...
    ... in the coal dust and fly ash of the Kolubara basin (Serbia). Periodico di Mineralogia, 81(2), 205-223. CVETKOVIC Z., LOGAR M., ROSIC A., 2013: Mineralogy and characterization of deposited particles of the aero sediments collected in the vicinity of power plants and the open pit coal mine: Kolubara ...
    ... Физико – технические проблемы разработки полезных ископаемых, (Multi- attribute Model Support in Selecting the Land Reclamation at the Open Pit Mine "Klenovnik" of the Coal Basin "Kostolac"). Journal of Mining Science, Sprin- ger, pages: 1573–8736, Институт горного дела Сибирского отделения 4. СПИСАК ...

  • Primena digitalne fotogrametrije u rudniku Rudnik

    Nikola Mirković, Luka Crnogorac, Katarina Urošević (2023)
    Digitalna fotogrametrija, lasersko skeniranje i virtuelizacija sve više pronalaze aktivne uloge u rudarstvu, prvenstveno zbog svoje široke mogućnosti primene. Laserskim skeniranjem i fotogrametrijom snimaju se i kreiraju 3D modeli otkopa, jamskih hodnika, površinskih kopova, površinskih objekata (zgrada, spomenika, predmeta), a vrši se skeniranje celih rudnika koji se rekonstruišu u 3D digitalne modele. Fotogrametrija predstavlja proces fotografisanja objekata pomoću fotoaparata i daljom obradom fotografija u različitim softverskim alatima kreiraju se realne kopije 3D modela objekata ili predmeta u digitalnoj formi. Za ...
    digitalna fotogrametrija, prostorna vizuelizacija, rudarski objekti, podzemna eksploatacija
    ... M. (2013). Determination of volumetric changes from laser scanning at an underground limestone mine. Mining Engineering, 65(11) [8] Slaker, B., & Westman, E. (2014). Identifying underground coal mine displacement through field and laboratory laser scanning. Journal of Applied Remote Sensing, 8(1) ...
    ... mining, primarily due to their wide application possibilities. With laser scanning and photogrammetry, 3D models of excavations, underground roadways, open-pit mines, surface objects (buildings, monuments, objects) are photographed and created, and whole mines are scanned and reconstructed into 3D digital ...
    ... Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs XI MEĐUNARODNA KONFERENCIJA UGALJ I KRITIČNI MINERALI 2023 11 INTERNATIONAL CONFERENCE COAL AND CRITICAL MINERALS 2023 Zlatibor, 11-14. oktobar ...

  • Model predviđanja potresa od miniranja na površinskim kopovima primenom simulacione metode Monte Karlo i fazi logike

    Milanka N. Negovanović (2015-06-30)
    Modeliranje predviđanja potresa tla od miniranja primenom fazi logike i metode MonteKarlo zasnovano je na podacima dobijenim terenskim merenjima potresa uzrokovanihminiranjem. Promenljive modela definisane su analizom parametara bušenja i miniranjaminskih serija, kao i velosigrama izmerenih potresa od miniranja. Iskorišćene suprednosti fazi logike u implementaciji mnogo većeg broja ulaznih i izlaznih veličina zamodeliranje u odnosu na postojeće empirijske modele. Na osnovu identičnih podataka,dobijen je regresioni model predviđanja potresa, da bi se izvršilo testiranje novogmodela. U cilju povećanja pouzdanosti modela predviđanja, ...
    model, predviđanje potresa, miniranje, površinski kop, Monte Karlo, fazilogika, regresiona analiza, FFT analiza, spektri odziva, pomeraj pukotina
    ... blasting cases. The methodology of modeling can be applied for the prediction of vibration from blasting in all open pit mines. Keywords: model, prediction of vibrations, blasting, open pit mine, Monte Carlo, fuzzy logic, regression analysis, FFT analysis, response spectra, crack displacement Scientific ...
    ... Janković, I., Zeković, D., Measurement and analysis of blast-induced vibrations in the open pit copper mine „Veliki Krivelj“ Bor, Proceedings of the XI National Conference with International Participation of the Open and Underwater Mining of Minerals, Scientific and Technical Union of mining, geology ...
    ... Engineering 27(2), 2007, 116-125. 27. Iphar, M., Yavuz, M., Ak, H., Prediction of ground vibrations resulting from the blasting operations in an open-pit mine by adaptive neuro-fuzzy inference system, Environmental Geology 56(1), 2008, 97-107. 28. Mohamed, M.T., Artificial neural network for prediction ...

  • Adaptive neuro-fuzzy prediction of operation of the bucket wheel drive based on wear of cutting elements

    Filip Miletić, Predrag D. Jovančić, Milos Milovančević, Dragan Ignjatović (2020)
    The capacity of the rotor excavator depends largely on the operation of the subsystem for digging. There is a great contribution to the correct and sharp teeth when the capacity is the highest. In the function of time, the teeth become clogged due to abrasive wear, or changes in their geometric shape. To analyze the bucket wheel drive in depend on wear of the cutting elements in this study adaptive neuro fuzzy inference system (ANFIS) approach was implemented. ANFIS ...
    Pogon rotornog točka, habanje, rezni elementi, ANFIS

  • Razvoj ARCGIS geobaze površinskog kopa korišćenjem UML CASE alata

    Aleksandra Tomašević, Ljiljana Kolonja, Ivan Obradović, Ranka Stanković, Olivera Kitanović (2012)
    ... opening and developing the “Field G” open pit (Idejni projekat sa studijom opravdanosti otvaranja i izgradnje površinskog kopa “Polje G”). Open pit "Field G" is currently not in function. Its opening, preliminary scheduled for 2015, will provide continuous coal production for the “Nikola Tesla” power ...
    ... by the example of the "Field G" open pit, followed by an outline of the way spatial-temporal data are handled, as well as by an example of visualization of spatial classes in ArcMap. Keywords: geographic information system, GIS, geodatabase, UML, ArcGIS, open pit INTRODUCTION The growing complexity ...
    ... Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs 1 USING UML CASE TOOLS FOR DEVELOPMENT OF AN OPEN PIT ARCGIS GEODATABASE Aleksandra Tomašević, Ljiljana Kolonja, Ivan ...

  • Razvoj integralnog modela za optimizaciju diskontinualnog sistema proizvodnje na površinskim kopovima nemetala

    Miodrag Čelebić (2024)
    Izbor optimalne mehanizacije u diskontinualnom sistemu transporta je jedna od najvažnijih odluka koju treba donijeti prilikom projektovanja površinskih kopova. Pri izboru optimalne mehanizacije, uticaj ima veliki broj faktora, kako prirodnih – geoloških i ekoloških, tako i tehničkih, ekonomskih i socijanih. Neki od njih se mogu izraziti numerički, u određenim mijernim jedinicama, a neki opisno, lingvističkim varijablama, shodno uslovima koji vladaju na rudnim ležištima, a koje karakterišu visok stepen neizvjesnosti i neodređenosti kako prilikom istraživanja, tako i tokom procesa eksploatacije ...
    izbor mehanizacije, tehnologija eksploatacije, diskontinualani sistem, ekspertsko odlučivanje, lingvističke varijable, MCDM, FAHP

  • WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)
    ... facilities consist of a name, place, municipality, district and site address. Object type is selected from the list of provided terms: open pit, underground mine, processing, waste deposit, maintenance workshop, other facility. Data on cadastral parcel or parcels and the titleholder are entered if ...
    ... bench heights, the overall depth of the pit, volume, as well as general data collected during the field visit related to recultivation, water level (whether the mine is above, below, or above and below water level), as well as the site, for example, a pit, a landfill, workshop or plant. Figure 1 ...
    ... process in connection with activities related to surface mining of coal by improving access to data, timely dissemination of data and understanding of geospatial data on different scales and at different levels [4]. Abandoned Mine Land Inventory System (e-AMLIS) (USA) includes information on abandoned ...

  • Hidrogeoekološki uslovi eksploatacije kamenih i mrkih ugljeva Srbije

    Branko R. Miladinović (2016-04-27)
    Ugalj predstavlja energent na čijoj osnovi se razvija privreda celog sveta.Zato mu se pridaje velika pažnja u eksploataciji i preradi, bez obzira na mnogeštetne uticaje na životnu sredinu, a posebno na efekat staklene bašte koji sestvara emisijom zagađujućih materija u atmosferu radom termoelektrana naugalj.U Srbiji, resurs koji se danas u najvećoj meri koristi u proizvodnjielektrične energije je ugalj i on učestvuje u proseku sa 70 %. U strukturi ukupneproizvodnje ugljeva, dominiraju lignitski ugljevi sa učešćem od 98 %, a ...
    Srbija, kameni i mrki ugalj, podzemna eksploatacija, preradauglja, rudničke vode, hemijski sastav, emisija zagađujućih materija, životnasredina
    ... hydrograph for the open-pit hard coal mine Progorelica in the Ibar Basin. Hydrochemical analyses reveal two types of water, based on the chemical composition: a) mine water with total dissolved solids (TDS) of M<1000 mg/L, which occur in coal seam roofs and floors, and b) mine water with a TDS ...
    ... (2012). Black lignite and hard coal are extracted from eight coal basins, including 12 underground mines and one open-pit mine. Despite abundant reserves of these types of coal, the annual output is relatively modest – about 590,000 t on average (2010-2012). This quantity does not meet even half ...
    ... Senjski Rudnik and Jarando discharge mine water that contains pollutants in excess of 2nd class ELVs (or those that determine good ecological status of surface water bodies). This type of emission also occurs at decommissioned coal mines: Ušće, abandoned pit at Jarando, Podvis, Dobra Sreća, Resava ...

  • Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete

    Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović (2021)
    sagorevanje lignita, otpadna šljaka, zamena cementa, proizvodnja maltera i betona, fizičko-mehanička i fizičko-hemijska karakterizacija
    ... Tabelin, C.B.; Maestre, C.V.; Aseniero, J.P.J.; Park, I.; Illacorte-Tabelin, M. Synthesis and characterization of coal fly ash and palm oil fuel ash modified artisanal and small-scale gold mine (ASGM) tailings based geopolymer using sugar mill lime sludge as Ca-based activator. Heliyon 2021, 7, e06654 ...
    ... Introduction Coal is a solid fuel that has been used as a primary fossil fuel for centuries. The world’s known coal reserves are much greater than those of gas and oil which means that it will be dominant in energy supply in the subsequent years [1–3]. Depending on the time of formation, coal can be classified ...
    ... classified as anthracite, bituminous coal, and lignite [4]. Lignite is a type of coal from the early stages of coalification whose properties are intermediate between peat and bituminous coal. Because of its low mining cost, easy access, high reactivity, and low price, the world’s annual lignite production ...

  • Dimenzionisanje deponija za ugalj

    Dinko Knežević, Božo Kolonja, Ranka Stanković, Aleksandra Tomašević, Dragana Nišić (2014)
    ... aper818.html 7. Stevanović D.R, Kolonja B.M., Stanković RM., Knežević D.N., Banković M. V., 2013, Application of stochastic models for mine planning and coal quality control, www.doiserbia.nb.rs/img/doi/0354-9836/2013%20OnLine-First/ 0354- 98361300031S.pdf 8. Erasmus J. H., Bulk Raw Materials ...
    ... 1982, Utvrđivanje potrebnih veličina deponija uglja za termoelektrane, Rudarski institut, Beograd 3. Carpenter M.A., 1999, Management of coal stockpiles, IEA Coal Research, London 4. Leontijević M., 2010, Mogućnosti homogenizacije uglja u sistemu P.K. "Tamnava" - termoelektrana "Nikola Tesla B" ...
    ... на www.dr.rgf.bg.ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs DIMENZIONISANJE DEPONIJА ZA UGALJ Dinko ...

  • 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 ...
    raspoloživost, fazi teorija, AHP višekriterijumska analiza, eksperska ocena, buldozer
    ... and spreaders) has been demonstrated. In case of low availability, the open-pit mine must have a larger number of units or there will not be enough machines for operation. In the structure and extent of auxiliary works in open-pit mines, the most commonly used earthworks are those which are performed ...
    ... publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs energies Article Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine Stevan Djenadic 1 ...
    ... Измењено: 2023-10-14 04:29:43 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 Дигитални репозиторијум Руд ...

  • Hidrogeoekološki aspekti aksploatacije uglja u Pelagonijskom basenu (Makedonija)

    Kostadin J. Jovanov (2016-06-24)
    Leţišta uglja „Suvodol“, „Brod-Gneotino“ su u eksploataciji, a leţište uglja „Ţivojno“je u fazi pripremi. Nalaze se u krajnjem jugoistočnom i juţnom delu Pelagonijskekotline. Sva tri leţišta stvorena su u neogenim sedimentima u jezerskim uslovimasedimentacije u zoni kontakta sa prekambrijumskim kristalastim stenama. Kod sva trileţišta ugalja se javljaju više slojeva različite debljine, u okviru kojih se nalaze klastičnisedimenti (gline, peskovi i dr.). U podini ugljenog basena nalaze se kristalaste steneprekambrijumske starosti.Teren u okolini leţišta uglja karakteriše se umereno kontinentalnom klimom, ...
    ugalj, podzemne vode, površinske vode, neogeni kompleks, izdani,transmisibilnost, nivo podzemne vode, sniţenje nivoa
    ... water Flow Models in Open Pit Mining: Can We Do Better?Mine Water Environ, pp. 187-190). 8. Bukowski P, Bromek T, and Augustyniak I, 2006: Using the DRASTIC System to Assess the Vulnerability of Ground Water to Pollution in Mined Areas of the Upper Silesian Coal Basin. Mine Water and the Environment ...
    ... the Feasibility Study of a Closure Plan for an Open Pit Mine (La Respina Mine, Spain). Mine Water Environ, pp. 94-101. 60. Singh A, Mahato M, Neogi B, and Singh K, 2010: Quality Assessment of Mine Water in the Raniganj Coalfield Area, India. Mine Water Environ, pp. 248-262. 61. Spasovski O, Petrov ...
    ... Doktorska Desertacija 221 25. Jardon S, Ordones., Alvares R, Cienfuegos P and Loredo J, 2013: Mine Water for Energy and Water Supply in the Central Coal Basin of Asturias (Spain). Mine Water Environ, pp. 139-151. 26. Jovanov K, Micevski E, 1994: Elaborat od hidrogeološkite istraţuvanja ...

  • Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays

    Vladimir Simić, Dragana Životić, Zoran Miladinović (2021)
    Management, Monitoring, Policy and Law,Nature and Landscape Conservation
    ... Unexplored Open pit Several (0.1–1.5) In coal seam Bogovina Medium Unexplored Underground 1 (?) ? Valja Saka Medium Medium Underground 2 (0.5–15.0) 40–95 Bivolica Large Medium Open pit 1 (2–30) At surface Jelenkovac Medium Medium Open pit 1 (4) Up to 40 Mečji do Small Good Open pit 1 (10) Up to ...
    ... Orljak Small Good Open pit 1 (up to 8.5) 10 Beretnica Small Good Open pit 1 (oko 3) At surface Dubrava Small Good Open pit 1 (do 9) Up to 10 Umište Medium Low Open pit 1 (1,5–12,5) At surface 2. Bentonitic clay Rovine-Potočić Large Low Open pit 1 (>20) Up to 4 Gušica Large Low Open pit 1 (>50) 1–30 ...
    ... modelling of clay deposits as a basis for open pit designs. In Proceedings of the I Conference on Surface Clay Exploitation, Kanjiža, Serbia, 29 June–2 July 1995; pp. 197–199. 32. Simić, V.; Đurić, S.; Životić, D. Bentonitic Clays of the Drmno Deposit (Kostolac Coal Field). Bull. Geol. Hydrogeol. Eng. Geol ...

  • Building Terminological Resources in an e-Learning Environment

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... Stanković, R., Vuković, F., Obradović, I., An Approach to Management Decision Support: The Coal Mine Pljevlja Management Information System, Proceedings of the Fifteenth International Symposium on Mine Planning and Equipment Selection, Torino, Italy, Vol. 1, pp. 436-441, 2006. [6] Krstev, C. ...
    ... Namely, various applications developed in this area followed by the development of an information system for planning, monitoring and management of mine exploitation, indicated that such resources would greatly contribute to their functionality [5]. The only available multilingual terminological ...
    ... also already being used, among other things for the production of controlled dictionaries related to planning and management of exploitation, to mine safety protection systems, mining equipement management, human resources management systems, as well as in a business intelligence module of the ...

  • A Fuzzy Expert Model for Availability Evaluation

    Dejan Ivezić, Miloš Tanasijević, Predrag Jovančić, Radiša Đurić (2019)
    Each technical system within itself carries the great potential danger of possible occurrence of failure and damages. Mining machines are characteristic by great investment values, costs of unplanned shutdowns, complex working conditions, and environment and workers hazards. Systematic monitoring of the mining machinery is of great importance for the management of the mining companies. Availability is the overall concept of quality of service. Includes information regard to operating state, an idle state, a standby state and shut down. The ...
    raspoloživost, ekspertski sistem, fazi teorija, buldozeri
    ... bulldozers that operate to three different open pit mines in Serbia was evaluated using the proposed expert model. Machines were compared individually (selected machine at selected open pit mine), but also integral comparisons between machines and open pit mines were made. Obtain results should be ...
    ... AVAILABILITY INDICATORS A n a ly st N o . A v a il a b il it y in d ic a to r Questionnaire: Bulldozer Liebherr – Drmno Open Pit Mine Grade: Excellent Good Average Adequate Poor The degree of affiliation, % 1 R 40 60 M 100 S 100 2 R 20 80 M 100 ...
    ... be used for the improvement of maintenance and logistic support at open pit mines, as well as an important parameter during the further purchase of this type of machines. Since the models based on experts’ opinions in principle carry a dose of subjectivity, the presented model and obtained results ...

  • Развој хибридног модела за оптиматизацију завршне контуре одлагалишта у површинској експлоатацији лежишта минералних сировина

    Aлександар Додеровић (2024)
    Површинска експлоатација минералних сировина захтијева претходно откопавање значајних( милионских) количина јаловине, које је неопходно транспортовати до локације на којој ће сеона трајно одложити. Традиционални приступ избора локације и дизајна одлагалишта се карактерише парцијалним приступом, заснованом на анализи неколико водећих критеријума као и на личном искуству инжењера, често занемарујући синергетски ефекат осталих утицајних фактора Технолошке операције које се односе на манипулацију јаловином, међу којима предњачи транспорт, генеришу највећи дио трошкова у површинској експлоатацији. Такође, цјелокупан процес експлоатације додатно је ограничен ...
    оптимизације завршне контуре одлагалишта, хибридни модел, површинска експлоатација, генетски алгоритам