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Упит dcterms_subject_txt:small-scale mine

395 items

  • Допринос одређивању безопасног растојања при извођењу минирања

    Slobodan Trajković, Sanja Bajić, Ivan Krsmanović (2023)
    минирање, експлозија, потреси од минирања
    ... 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 the surrounding building facilities when establishing the safety distance and the maximum quantity of explosive that may ...

  • Optimizacija površinskog kopa Ciganuša – Škorac

    Vasilije Zejak (2024)
    U radu se govori o značaju optimizacije u savremenom rudarstvu i kako nam to softveri štede vreme, novac i olakšavaju procese planiranja.Konkretno u izradi ovog rada korišćen je softverski paket Whittle.Da bi se optimizacije mogla uspešno sprovesti, potrebno je konstruisati pre svega blok model ležišta kao i definisati niz tehno – ekonomskih parametara. Na osnovu tih podataka definiše se optimalna kontura i dinamika razvoja radova. U skladu sa definisanim podaci i odgovarajućim podlogama definisana je optimalna kontura površinskog kopa Ciganuša ...
    optimizacija, površinski kop Ciganuša - Škorac, blok model, strateško planiranje, optimalna kontura, dinamika razvoja, fazni razvoj
    ... loški fakultet. 21.Taylor, H. K. (1977). Mine valuation and feasibility studies. Spokane, Washington: Northwest Mining Association. 106 Optimizacija površinskog kopa Ciganuša – Škorac 22.W. Hustrulid, M. Kuchta, R. Martin. (2013). Openi pit mine planing & design . London: Taylor & Francis ...
    ... Whittle D.; Whittle J.; Wharton C.; Hall G. (2005). S/ratfegic Mine Planing (dth Fdition). Preuzeto sa https://www.researchgate.net/publication/272494349 Strategic _Mine_Planni ng 24. Whittle J. (1999). A decade of open pit mine planning and optimization – The craft of turning algorithms into ...
    ... http://es.geovia.com/sites/default/files/whitepaper/Minex_2D_3DModels.pdf 2. Caccetta L, Hill P. S. (1987). Opfimization Techniques For Open Pit Mine Scheduling. Perth: School of Mathematics and Statistics Curtin University of Technology. Preuzeto sa https://www.mssanz.org.au/ MODSIM99/Vo!1%203/Hill ...

  • Hydrogeochemistry of Uranium in the Groundwaters of Serbia

    Marina Ćuk, Maja Todorović, Petar Papić, Jovan Kovačević, Zoran Nikić (2015)

  • 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 ...
    Geothermal assessment, Mineral deposit exploration, Geothermal potential, Serbia
    ... the importance of consideration of geothermal potential in the early stages of deposit exploration as a significant opportunity for more sustainable mine project development. Acknowledgment: Research of the geothermal potential of the Valjevo-Mionica basin was carried out as part of the "Study of ...

  • Компарација метода XRF i ICP-MS на узорцима угља и продуктима сагоревања

    Бранко Костић, Ксенија Ераковић, Дејан Прелевић, Сабина Ковач, Драгана Животић (2023)
    геохемија, угаљ, продукти сагоревања, XRF, ICP-MS

  • Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)

    Nikoleta Aleksić, Aleksandar Kostić, Miloš Radonjić (2021)
    This paper presents the first data on the organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in the East Herzegovina region of the External Dinarides. Representative, organic-rich samples from outcropping sedimentary rocks of different ages in the area (Triassic to Neogene) were selected and analysed. The organic matter was studied by Rock-Eval pyrolysis and under the microscope in reflected non-polarized light and incident blue light. The results obtained show the presence of different types of organic ...
    nafta i gas, Rock-Eval, refleksija vitrinita, maceral, termička zrelost
    ... with carbonaceous marl. �e sample was taken from the carbonaceous marl. �e youngest sediments (Middle Miocene) were sampled near the Gacko coal mine. A piece of clean coal was tak- en from the main coal seam, formed on top of light grey marl. �e Gacko main coal seam has a thickness of 9 to 24 ...
    ... with carbonaceous marl. The sample was taken from the carbonaceous marl. The youngest sediments (Middle Miocene) were sampled near the Gacko coal mine. A piece of clean coal was tak- en from the main coal seam, formed on top of light grey marl. The Gacko main coal seam has a thickness of 9 to 24 m ...
    ... re�ectance was 0.38% Rr, which corre- sponds to an immature stage of thermal maturity. �e Miocene coal sample analysed (Fig. 7) from the Gacko coal mine, with huminite as the major maceral group, pro- vided the most reliable data. More than 450 measurements were made, and the mean re�ectance was 0.34% ...

  • Dimenzionisanje deponija za ugalj

    Dinko Knežević, Božo Kolonja, Ranka Stanković, Aleksandra Tomašević, Dragana Nišić (2014)
    ... beltcon8/paper818.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 ...

  • Savremene tendencije upravljanja mineralnim resursima u svetu i stanje u Republici Srbiji

    Dragan Ignjatović, Vladimir Pavlović (2024)
    Strategija upravljanja mineralnim i drugim geološkim resursima na održivim i holističkim osnovama, služi kao osnova za vladinu politiku vezanu za geološka istraživanja i eksploataciju mineralnih resursa u skladu sa njenim pravnim i regulativnim obavezama. Uspostavljanje Strategije obezbeđuje osnovu za dalji razvoj i ona se realizuje u relevantnim oblastima politike kako bi se postigli postavljeni ciljevi, pri čemu se resursi moraju dobijati i koristiti na održiv način. Strategija treba transparentno da istakne mogućnosti i izazove, stvori preduslove, razjasni uloge i ...
    strategija upravljanja, mineralni resursi, rezerve, rudarstvo, geologija.
    ... ukupne svetske proizvodnje mineralnih resursa u 2022. godini prema podacima iz svetskog izveštaja o proizvodnji mineralnih resursa (engl. World Data Mine 2024) iznosi 7.509.892 miliona dolara (nisu uključeni agregati i dijamanti) [1]. Na Slici 3 je data vrednost svetske proizvodnje po godinama od 2016 ...

  • 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
    ... 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, pp. 15-22. ...
    ... 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 ...

  • Дефинисање археолошких објеката на локалитету Кремените њиве применом Ојлерове 3Д деконволуције на магнетометријске податке

    Весна Цветков, Илија Васиљевић, Бранислав Сретеновић, Весна Дамњановић (2018)
    ... f using the method on data collected  in  the  investigated area was made by testing on synthetic data. Although  it was possible to clearly deter‐ mine the edges of the sources of anomalies by the test, on the data from the site Kremenite njive they  are not clearly emphasized. Bearing in mind that ...

  • 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
    ... resource, mostly handcrafted, was also developed to support knowledge management in specific subfields of mining engineering, such as mining equipment, mine safety and geostatistics [22]. A thesaurus of mining terminology is available online, but it is not systematically updated. Moreover the application ...
    ... component relations (between single words and terminological phrases). For example, lexical entry ‘rudar’ (miner, person engaged in mining, a worker in a mine) contains information related to part of speech: ‘N’ (noun), morphological class ‘N2’, semantic tag ‘+Hum’ (human), domain ‘DOM = mining’. Its inflected ...
    ... three bilingual mining English-Serbian dictionaries produced 24,049 entries, three monolingual English dictionar- ies covering terminology from the mine safety domain contributed with 655 entries, and an English-Serbian dictionary of terminology in the field of waste management yielded 1968 entries. ...

  • New data on the age of an Upper Cretaceous clastic-carbonate succession in Brežđe (Western Serbia)

    Nevenka Đerić, Nataša Gerzina (2014)
    Gornja kreda, radiolarije, Jadar blok, zapadni pojas Vardarske zone, zapadna Srbija
    ... Dinarides: a working mod- el.– Ann. Univ. Sci. Budapest., Sect. Geol., 35, 143—144. DIMITRIJEVIĆ, M.D. (1997): Geology of Yugoslavia.- Geol. Inst. GE- MINI Spec. Publ., Belgrade, 187 p. DIMITRIJEVIĆ, M.D. (2001): Dinarides and the Vardar Zone: a short review ofthe geology.– Acta Vulcanol., 13, 1—8. ...
    ... 13, 14 originate from Sample BR 1/1; specimens in Figs. 6, 10 are from Sample BR 1/2; specimensin Figs. 3, 5, 11, 12, 15 are from Sample BR 1/3. Scale bar length for all images is 50am. Đerić and Gerzina: New data on the age of an Upper Cretaceous clastic-carbonate succession in Brežđe (Western ...
    ... originate from Sample BR 1/1; specimens in Figs. 11-13, 23-25 are from Sample BR 1/2; specimens in Figs. 4, 14-17, 26-28 are from Sample BR 1/3. Scale bar length for images 1-4, 7-24, 26-30 is 50um; for images 5, 6, 25 is 100nm. Geologia Croatica 67/3 r č| F3 |E -i | s s|s = LNKOS s|s žš|a& ...

  • The influence of alkyl polyglucosides (and highly ethoxylated alcohol boosters) on the phase behavior of a water/toluene/technical alkyl polyethoxylate microemulsion system

    Marija Ilic, Franz-Hubert Haegel, Vesna Pavelkic, Dragan Zlatanovic, Snezana Nikolic-Mandic, Aleksandar Lolic, Zoran Nedic (2016)
    The influence of additives (alkyl polyglucoside, Glucopon 600 CS UP and alcohol ethoxylate C18E100) on the behavior of the water/toluene/Lutensol ON 50 (technical oxoalcohol, i-C10E5) microemulsion system as a function of temperature and composition has been investigated. The phase behavior of the microemulsions was determined by vertical sections through the Gibbs phase prism (fish-like phase diagrams). Alkyl polyglucoside shifts the one phase region to lower temperatures compared with water/toluene/Lutensol ON 50 mixtures. This is contrary to the expectation, considering ...
    микроемулзија, толуен, алкил полиглукозид, оксоалкохол етоксилат, појачивач ефикасности, „fish“ дијаграми
    ... oil, surfactant and co-surfactant, res- pectively. The so-called Ž-point, where the three-phase body meets the one-phase region, defines the mini- mum mass fraction of surfactant needed to solubilize water and oil and is a measure for the efficiency of the surfactant. The corresponding ...
    ... the efficiency of the surfactant mixture increases slightly. With increasing , the “fish tail! unexpectedly moves downward on the temperature scale despite the hydrophilic nature of the sugar surfactant. The efficiency of the surfactant mixture increases with increasing 6. In these quaternary ...
    ... (CisEtoo) to the water/toluene/Lutenso! ON 50 system increases the solubiliz- altion capacity of the surfactant, even if the co-surfactant is used in small quan- tities, and shifts the one-phase region to higher temperature by a few "C. Keywordas: microemulsion, toluene, alky! polyglucoside, oxoalcoho/ ...

  • 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
    ... 0oocmynna 02.12.2023. zoQune y 15:29 uacosa na uhkmepHem cmpaHuuu: https://earthjournalism.net/stories/the-dark-side-of-renewable-energy jDpenjpit}mine — tdilidgsipondy~ Cnanuka 14. Camenumcku cHu.Mak pyoapckoe npojekma bajan o0o0. Hniaop: Cnuka je 0una 0oocmynna 02.12.2023. zoQune y 15:36 uacosa ...
    ... and the struggle Jor land, energy, food, water and minerals. Routledge. [100] Ballestrin, S., Low, R., Reynaud, G. and Crane, P., 2014. Honeymoon Mine Australia: commissioning and operation of the process plant using a novel solvent extraction reagent mixture in a high chloride environment. [101] ...
    ... and Li, H., 2016. Investigating heavy metal pollution in mining brownfield and its policy implications: a case study of the Bayan Obo rare earth mine, Inner Mongolia, China. Knvironmental Management, 57, p.879-893. [124] Tien, J.C., 2013. China's rare-earth minerals. Mining Engineering, December ...

  • 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
    ... rudarstvo USBM (en. the United States Bureau of Mines) [19] pod nazivom Structure Response and Damage Produced by Ground Vibration From Surface Mine Blasting (Odziv objekata i oštećenje uzrokovano vibracijama tla od miniranja na površinskim kopovima) autora Siskind Univerzitet u Beogradu, Rudarsko ...
    ... probušenja, veličine i kvaliteta čepa, postojanja mekših proslojaka, itd. 2.2 MEHANIZAM EKSPLOZIJE U NEOGRANIČENOJ ČVRSTOJ SREDINI Dejstvo eksplozije mine u homogenoj čvrstoj neograničenoj sredini [44], gde ne doseže do slobodne površine, javlja se u svim pravcima, podjednakom silom, a talas eksplozije ...
    ... stenske mase na dovoljnom rastojanju, kako bi novoformirana površina bila stvarno slobodna, slika 2-10. Nedovoljno vreme usporenja uslovljava dejstvo mine u narednom redu u stešnjenim uslovima bez slobodne površine, odnosno u uslovima povećanog opterećenja, čime se smanjuje efikasnost drobljenja stenske ...

  • Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic

    Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković (2020)
    Artificial lift methods have applications in oil wells where oil production is no longer possible due to natural reservoir energy, so this necessary energy is added by introducing lift methods. In order to achieve optimum production, the selection of an artificial lift method is very important. This paper uses fuzzy logic as a mathematical and conceptual model for selection of the optimal artificial lift method. The outcome or IF-THEN rules, as the central part of the model, is based ...
    mehaničke metode, proizvodnja nafte, fazi logika, donošenje odluka, optimizacija
    ... μBn); C = (μC1,…, μCj,…, μCn); (2) М assessment is obtained in the form: μМ = (MAXj=1, …, MAXj=10) = (μM1, …, μM10) Where: MAXj = max{MINo}, for every j and MINo = min{μAj = 1, …, 10, μBj = 1, …, 10, μCj = 1, …, 10}, for all o = 1 to O. The size O represents the outcome, which is defined for each ...
    ... . . . , µC n); (2) M assessment is obtained in the form: µM = (MAXj=1, . . . , MAXj=10) = (µM 1, . . . , µM 10) where: MAXj = max{MINo}, for every j and MINo = min{µA j = 1, . . . , 10, µB j = 1, . . . , 10, µC j = 1, . . . , 10}, for all o = 1 to O. The size O represents the outcome, which ...
    ... surface conditions (space limitations, noise, visibility, safety), and additional limitations at the bottom of the well (high gas-liquid ratio—GLR, scale, sand, corrosion). The third step is the economic parameters of technically applicable methods. For each candidate method, the present value of the ...

  • Fuzzy expert analysis of the severity of mining machinery failure

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    Mining machinery failure is almost an everyday occurrence. Usually the failures bare certain consequences, which require additional financial costs to repair and restore the system to its operational state. The consequences are viewed through negative and damaging effects a failure has on the machine, health and safety of the employees, work environment, and on the environment. The removal of the consequences of the failure requires additional financial investment, which has a negative impact on the company’s business. In order ...
    Severity of failure, Severity of failure assessment, Mining machinery, Fuzzy sets, Fuzzy logic

  • 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

  • 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
    ... rudarstvo USBM (en. the United States Bureau of Mines) [19] pod nazivom Structure Response and Damage Produced by Ground Vibration From Surface Mine Blasting (Odziv objekata i oštećenje uzrokovano vibracijama tla od miniranja na površinskim kopovima) autora Siskind Univerzitet u Beogradu, Rudarsko ...
    ... probušenja, veličine i kvaliteta čepa, postojanja mekših proslojaka, itd. 2.2 MEHANIZAM EKSPLOZIJE U NEOGRANIČENOJ ČVRSTOJ SREDINI Dejstvo eksplozije mine u homogenoj čvrstoj neograničenoj sredini [44], gde ne doseže do slobodne površine, javlja se u svim pravcima, podjednakom silom, a talas eksplozije ...
    ... stenske mase na dovoljnom rastojanju, kako bi novoformirana površina bila stvarno slobodna, slika 2-10. Nedovoljno vreme usporenja uslovljava dejstvo mine u narednom redu u stešnjenim uslovima bez slobodne površine, odnosno u uslovima povećanog opterećenja, čime se smanjuje efikasnost drobljenja stenske ...

  • Stepen metamorfizma metaklastita rudnika

    Vanja Ćuk (2024)
    Zadatak ovog rada je bio, potvrda saznanja da se na planini Rudnik dogodio kontaktni metamorfizam gornjokrednih sedimentnih stena i da se ispita intenzitet kontakto-metamorfnih promena. Posle kraćeg opisa geografskog položaja, pregleda ranijih istraživanja i geologije šireg područja, usmerena je pažnja na petrološka ispitivanja metaklastita i na kontaktno-metamorfne facije. Usled stvaranja različitih vulkanogenih facija odnosno usled vulkanskih erupcija, delovanjem zagrejane magme (lave) ili zagrejanih fluida, došlo je do kontaktnog metamorfizma, na granici oligocen-miocen i do stvaranja različitih metamorfnih stena, a ...
    Kontaktni metamorfizam, Rudnik, metakonglomerati, metapeščari, metaalveroliti