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Упит dcterms_subject_txt:open pit

225 items

  • 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 ...
    rudarstvo, odlučivanje, upravljanje, model,multivarijabilno, multiatributno, multikriterijumsko
    ... optimum post mining land use for pit area to clarify reclamation costs, Archives of Mining Sciences, Vol. 27 (2), 2011, 145-168. 7. Bascetin A., A decision support system using analytical hierarchy process (AHP) for the optimal environmental reclamation of an open-pit mine, Environ Geol, 2007, 52: 663–672 ...
    ... pašnjačka namena.  Bascetin A., A DECISION SUPPORT SYSTEM USING ANALYTICAL HIERARCHY PROCESS (AHP) FOR THE OPTIMAL ENVIRONMENTAL RECLAMATION OF AN OPEN-PIT MINE / SISTEM ZA PODRŠKU ODLUČIVANJU UZ UPOTREBU ANALITIČKOG HIJERARHIJSKOG PROCESA (AHP) U CILJU OPTIMALNE REKULTIVACIJE POVRŠINSKOG KOPA, Environ ...
    ... U zaključku se kao ključna prednost ističe fleksibilna priroda pristupa.  Bazzazi A. A., Osanloo M., Karimi B., DERIVING PREFERENCE ORDER OF OPEN PIT MINES EQUIPMENT THROUGH MADM METHODS: APPLICATION OF MODIFIED VIKOR METHOD / IZBOR OPREME POVRŠINSKOG KOPA MULTIATRIBUTNOM METODOM: PRIMENA M ...

  • A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)

    Gordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević (2021)
    The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were ...
    Uljni šejl, Aleksinac, organska supstanca, otvoreni i zatvoreni sistem pirolize, biomarkeri, izotopski sastav ugljjenika

  • A business intelligence approach to mine safety management

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Dejan Stevanović, Marija Radojičić (2016)
    ... lexical and semantic relations with other terms. Examples are relations established between general and more specific terms, such as "coal mine", and "open pit", which is a specific type of coal mine, as well as synonyms relations, such as those between "opencast", "surface mine", and "quarry". One approach ...
    ... 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 A Business Intelligence Approach to Mine ...

  • Phase relations and physical indicators of municipal waste from old landfills in Serbia

    Dragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić (2021)
    Due to certain similarities of municipal waste and soil, usually for the determination of basic parameters of physical state, laboratory and field tests which are common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different values of indicators of municipal waste physical state can be found in the literature. The basic reasons should be found in different definitions and methods that researchers use ...
    municipal waste, moisture content, unit weight, specific gravity, grain size distribution, porosityGeneral Computer Science
    ... laboratory and field tests are those that are common in geotechnical investigations such as: direc field measurements (excavation of exploration pit at the landfili with measurement of volume and weight of excavated waste), measurements on samples from exploration boreholes, geodetic surveying ...
    ... 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 Japanese Geotechnical Society Special Publication ...

  • The analysis of the geothermal energy capacity for power generation in Serbia

    Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk (2013)
    Renewable Energy, Sustainability and the Environment
    ... affected by acidity/alkalinity of solu- tions and a variety of the salts present. Silica is rapidly dissolving in water of low pH values, such as pit water or water with elevated carbon dioxide. Silica solubility is rapidly increasing in groundwater containing Na2CO3, NaHCO3, NaOH or NaCl [11]. ...
    ... 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 THE ANALYSIS OF THE GEOTHERMAL ENERGY CAPACITY ...

  • 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

  • Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)

    Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)

  • 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 ...
    ... miniranja na površinskim kopovima primenom simulacione metode Monte Karlo i fazi logike;Model for Prediction of Blast- Induced Ground Vibrations in Open Pit Mines Using Monte Carlo Simulation Method and Fuzzy Logic. Milanka N. Negovanović Дигитални репозиторијум Рударско-геолошког факултета Универзитета ...

  • Extensive vibrations of the belt conveyer drive electromotor of a bucket wheel excavator as a result of intesified wear-and-tear of its mount support

    Vesna Damnjanović, Predrag Jovančić, Snežana Aleksandrović (2017)

  • Mineralogical analysis of a clay body from Zlakusa, Serbia, used in the manufacture of traditional pottery

    Maja Milošević, Biljana Đorđević, Mihovil Logar (2020)
    калцит, сирова глина, традиционална керамика, Злакуса
    ... and up to a depth of 8 m. Digging dee- per than 8m has been noted by the contractor to lead to a high probability of landslides. Every year, a new pit is dug out, while the previous one is buried and is not used again. Calcite is supplied to Zlakusa from the village of Rupeljevo (Fig. 1, bottom right) ...
    ... 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 Clay Minerals (2020), 55, 142-149 doi:10 ...
    ... and o The Author(s), 2020. Published by Cambridge University Press on behalf of The Mineralogical Society of Great Britain and Ireland. This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike licence (http://creativecommons.org/licen ...

  • Simulation of Hydrogeological Environmental Discharge in Case of Interruption Constant Observations

    Marina Čokorilo Ilić, Dragoljub Bajić, Miroslav Popović (2024)
    Monitoring Network, data, hydrogeological environment, tunnel, simulation

  • Модел померања терена услед утицаја рударских радова на основу радарских сателитских снимака

    Зоран Гојковић (2023)
    Површински коп, као систем који обезбеђује енергетску стабилност или снабдевање сировинама које су од изузетне важности за привредни напредак, својим функционисањем утиче на околна насељена места. Међу бројним аспектима овог утицаја, може се издвојити издвојити и анализирати утицај вертикалних и хоризонталних померања која се јављају на површи терена. Мониторинг вертикалних и хоризонталних померања површи терена околних насељених места треба да има што бољу временску резолуцију (временски период између праћења деформација) како би се вертикална и хоризонтална померања контролисала и ...
    Сентинел 1 интерферометрија, слегање, Перманентни скатерери, Костолац

  • Моделирање утицаја одступања линије најмањех отпора од пројектоване на интензитет потреса од минирања

    Стефан Милановић (2024)
    Према дефиницији линија најмањег отпора представља најкраће растојање од центра минског пуњења до слободне површине. Oвим истраживањем представљен је утицај линије најмањег отпора, као и њеног одступања од пројектоване на интезитет потреса услед минирања. Проблем линије најмањег отпора је веома заступљен у пракси, где се занемарује изглед слободне површине, који може бити врло неправилан. Линију најмањег отпора је потребно мерити целом дужином минске бушотине према слободној површини, иако је у пракси случај да се мери најчешће као растојање од ...
    линија најмањег отпора, 3D модел, потреси услед минирања, минирање, слободна површина, метода раздвојених елемената

  • Properties of fly ash and slag from the power plants

    Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić (2016)
    This paper describes the physical, chemical and mineral properties of ash and slag, which were taken from thermal power plants Nikola Tesla A, Nikola Tesla B, Kostolac A and Kostolac B. The knowledge of the mineralogical material composition is important because the type of minerals directly determines the properties of the fly ash and slag and their possible application. Laboratory tests showed that ash and slag samples consist of the following minerals: amorphous materials, quartz, feldspar, mullite, melilite, cristobalite, ...
    fly ash, slag, physical composition, chemical composition, mineral composition, X-ray diffraction method
    ... seam (ŽIVOTIĆ et al., 2013). Since 1896, about 883.2Mt of lignite in total, has been pro- duced from the Kolubara basin, of which 866.8Mt was form open pit mines and 16.3Mt from underground mines (active until 1974). Annually, the Kolubara basin produces about 30Mt lignite, which amounts to 70% of ...
    ... 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 2016 | 69/3 | 317–324 | 6 Figs. | 4 Tab. | ...
    ... oldest and deepest) and Seams II-a, II, I-a and I. Only coal seams III, II and I are (or have been) explored in the Drmno, Ćirikovac and Klenovnik open pits. The average thickness of coal Seam III throughout the whole basin is 19.38m, while it is 1.43m for IIa, 4.14m for II, 1.53m for Ia and 13.90m ...

  • Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics

    Maja Milošević, Predrag Dabić, Sabina Kovač, Lazar Kaluđerović, Mihovil Logar (2019)
    keramika, glina, Dobrodo, mineralogija, sirovina, Srbija

  • Definition of groundwater genesis and circulation conditions of the complex hydrogeological karst system Mlava–Belosavac–Belosavac-2 (eastern Serbia)

    Ljiljana Vasić, Saša Milanović, Zoran Stevanović, Laszlo Palcsu (2020)
    Geochemistry and Petrology

  • Rock slope stability analysis under Hoek–Brown failure criterion with different flow rules

    Svetlana Melentijević, Zoran Berisavljević, Dušan Berisavljević, Claudio Olalla Marañón (2024)
    The stability analysis of homogeneous rock slope following the Hoek–Brown failure criterion under the hypothesis of different flow rules is performed based on limit equilibrium and finite element methods. The applied failure criterion is the generalized Hoek–Brown that can be introduced as a shear/normal function in analysis applying different flow rules. The results are compared with those obtained by the application of equivalent shear strength parameters of the Mohr–Coulomb criterion, considering that this is still the most widely used ...
    Kružna klizna površ, Huk-Braunov kriterijum loma, Kriterijum popuštanja, Smičuća/normalna funkcija, Nivo napona, Verovatnoća i parametarska analiza

  • Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala

    Srđan B. Stanković (2016-09-11)
    Jezero Robule, formirano u podnožju rudničke raskrivke Oštreljski planir (Rudnik bakra Bor), je nastalo kao posledica rudarskih aktivnosti. Mikrobiološki diverzitet ekstremno kiselog jezera Robule ispitivan je primenom kako klasičnih mikrobioloških metoda (svetlosna mikroskopija i kultivacija na selektivnim podlogama) tako i primenom savremene metode molekularne biologije (analiza polimorfizama terminalnih restrikcionih fragmenata; T-RFLP). Takođe, ispitivan je i potencijal i efikasnost jezerske vode u biološkom luženju mineralnog koncentrata, kao i u bioluženju uzoraka stare flotacijske jalovine Rudnika bakra Bor.Na osnovu dobijenih rezultata ...
    jezero Robule, acidofilne bakterije, bioluženje, kisele rudničke vode, flotacijska jalovina
    ... into the biogeochemistry of extremely acidic environments revealed by a combined cultivation-based and culture-independent study of two stratified pit lakes, FEMS Microbiology Ecology 87: 237-243 115 33. Fu B., Zhou H., Zhang R., Qiu G. (2008) Bioleaching of chalcopyrite by pure and mixed ...
    ... feriphilum, International Biodeterioration and Biodegradation 62: 109-115 34. Geller W., Shultze M., Klenimann R., Wolkersdorfer C. (2013) Acidic pit lakes: the legacy of coal and metal surface mines, Springer, Berlin 35. Ghauri M.A., Okibe N., Johnson D.B. (2007) Attachment of acidophilic bacteria ...
    ... acidic precipitation, experimental acidification, and acid mine drainage in Geller W., Shultze M., Kleinmann R., Wolkersdorfer C. (editors): Acidic pit lakes: the legacy of coal and metal surface mines, Springer, Berlin: 159-172 60. Knežević-Vukčević J., Simić D. (2006) Metode u mikrobiologiji, Biološki ...

  • Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia

    Bojan Kostić, Danica Srećković-Batoćanin, Petyo Filipov, Pavle Tančić, Kristijan Sokol (2021)
    This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern ...
    grandite, garnets, skarn, Rudnik
    ... value of U and Th is 3 ppm (Table 1). Discussion Analysing mineral zonation is a hard and challenging task due to the dimensions of the analysis pit to the relative scale of zonation and the angle of zonation margin to the imaged Fig. 4. BSE image of garnet grains with positions analyzed of EMPA ...
    ... 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 GEOLOGICA CARPATHICA, FEBRUARY 2021, 72, 1 ...
    ... externally induced local strain (e.g. Jamtveit et al. 1993; Ciobanu & Cook 2004). Further, according to Yardley et al. (1991), fluid flow through open systems produces oscillatory zoned garnets. Additionally, ani so tropic garnets widely range in composition whereas the garnets near the end-member ...

  • Ontološki model upravljanja rizikom u rudarstvu

    Olivera Kitanović (2021)
    Rudarska proizvodnja obuhvata kompleksne tehnološke sisteme, što nameće potrebu za uspostavljanjem i unapređivanjem sistema upravljanja rizikom. Heterogenost i obim podataka neophodnih za upravljanje rizikom zahtevaju sistem koji ih na fleksibilan način integriše i omogućava njihovo optimalno korišćenje. Osnovni cilj ove disertacije je razvoj ontologije za domen rudarstva i na njoj zasnovanog modela za upravljanje rizikom. Njegova realizacija podrazumeva i implementaciju algoritama ekstrakcije informacija za popunjavanje ontologije, kao i odgovarajuće softversko rešenje. Razvoj modela obuhvata i značajno proširenje rudarskog korpusa, kao ...
    rudarstvo, rizik, upravljanje rizikom, procena rizika, ontologija, semantička mreža, ekstrakcija informacija, upravljanje znanjem, računarska lingvistika
    ... Aleksandar Sedmak. 2020. “Rules of Risk Management-Case Study of Open Pit Mine.” Procedia Structural Integrity 28: 764–69. Kirin, Snežana, Milorad Pantelic, Igor Miljanović, and Violeta Talovic. 2013. “RISK MANAGEMENT OF MACHINES IN OPEN PIT MINES.” STRUCTURAL INTEGRITY AND LIFE-INTEGRITET I VEK KONSTRUKCIJA ...
    ... Formalne Gramatike Srpskog Jezika Upotrebom Metagramatike.” Универзитет у Београду. Dowd, Peter. 1994. “Risk Assessment in Reserve Estimation and Open-Pit Planning.” Transactions of the Institution of Mining and Metallurgy, Section A: Mining Technology 103: 148–54. Elms, DG. 1992. Risk Assessment ...
    ... Springer Science & Business Media. Godoy, M., and R Dimitrakopoulos. 2004. “Managing Risk and Waste Mining in Long-Term Production Scheduling of Open-Pit Mines.” In . Graham, R. L. 1996. Dictionary of Mining, Mineral & Related Terms. US Bureau of Mines. Gross, Maurice. 1987. “The Use of Finite Automata ...