Претрага
2213 items
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Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja
Hidraulični bageri primenjuju se u različitim oblastima privrede a najzastupljeniji su u građevinarstvu i rudarstvu. Na površinskim kopovima sa kontinualnim sistemima, klasifikuju kao pomoćna mehanizacija a na površinskim kopovima sa diskontinualnim sistemima, kao osnovna mehanizacija. Kako je u oba slučaja njihova primena neizostavna, važno je izvršiti adekvatnu analizu postojećih podataka, u cilju optimizacije izbora tipa hidrauličnog bagera u odnosu na uslove rada datog površinskog kopa. U radu su opisane različite višekriterijumske metode koje su korišćene za analizu hidrauličnih bagera. ...... VIseKriterijumska Optimizacija i Kom- promisno Resenje (Multicriteria Optimization and Compromise Solution) [11], S. Opricovic ELECTRE (I, II, III, IV) - franc. ELimination Et Choix Traduisant la Realité (ELimination and Choice Expressing REality) [12], Bernard Roy U poglavljima 4.1 - 4.5 su prikazane ...
... evaluation), TOPSIS (Technique for Order of Prefe- rence by Similarity to Ideal Solution), VIKOR (Multi- criteria Optimization and Compromise Solution) i ELECTRE (ELimination and Choice Expressing RE- ality). Navedene višekriterijumske metode pružaju mogućnost upoređivanja parametara čije numeričke vrednosti ...
... neutrosohic cubic set enviroment, Neutrosophic Sets and Systems, 21, pp. 131-141, DOI: 10.5281/zenodo.1235367, 2018. [12] Abedi M, Norouzi H G, Hamzeh M, ELECTRE III: A knowledge-driven method for integration of geophysical data with geological and geochemical https://doi.org/10.1016/j.ejor.2009 ...Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Filip Miletić, Ivan Janković. "Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja" in Tehnika, Centre for Evaluation in Education and Science (CEON/CEES) (2019). https://doi.org/10.5937/tehnika1903369D
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BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties
Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković (2023)To investigate the influence of spinel structure and sintering temperature on the functional properties of BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface from acetylacetonate precursors. As-prepared powders were additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the detailed examination of phase composition and morphology. The magnetic, dielectric, and ...ferroelectric, dielectric properties, magnetic properties, titanate/ferrite composites, phase composition... nanoparticles: Synthesis by the oil-in-water microemulsion reaction method and photocatalytic water-splitting, evaluation. f. J. Hydrogen Energy 2019, 44, 12421–12429. [CrossRef] Atiq, S.; Majeed, M.; Ahmad, A.; Abbas, S.K.; Saleem, M.; Riaz, S.; Naseem, S. Synthesis and investigation of structural, ...
... surface and processing of obtained structures into dense ceramics. The effect of structural properties and phase composition, as well as two sintering; schedules on dielectric and ferroelectric properties of synthesized ceramic composites, was studied and explained in detail. 2. Results and Discussion ...
... , LP., M.M.M., A.D., A.K., V.B.P, A.K.-G. and L.A.; Resources, M.Š., LP., M.M.M., A.D., A.K., V.B.P, A.K.-G. and L.A.; Writing—Original Draft, MŠ. and L.A.; Writing—review and editing, MŠA., V.B.P.and L.A.; Supervision, L.A. All authors have read and agreed to the published version of the manuscript ...Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković. "BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties" in Inorganics, MDPI AG (2023). https://doi.org/10.3390/inorganics11020051
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Tehnologija izrade i opremanje magacina eksploziva za potrebe ležišta bakra
Aleksandar Milojević (2024)Nakon radova otvaranja i početka eksploatacije, rudno telo bakra velikih rezervi zahteva i veliku količinu eksploziva da bi se ostvario zacrtan kapacitet. Samim tim, neophodno je izraditi funkcionalan magacin eksploziva koji će biti pristupačan svim horizontima i koji će moći da ispuni celokupni kapacitet svih horizonata. Obzirom da će se u magacinu skladištiti eksploziv, on mora ispunjavati specijalne uslove kako bi skladištenje bilo bezbedno. Neophodno je isprojektovati magacin tako da ispuni sve zahteve po pitanju količine i načina skladištenja eksploziva, ...... osnovu sledećih kriterijuma: • razređenja štetnih gasova produkata miniranja, • intenziteta zaprašenosti pri bušenju i utovaru, • razređenja izduvnih gasova i čađi mašina sa dizel motorom Određivanje količine vazduha potrebne za razređenje gasova od miniranja u odnosu na količinu eksploziva za ...
... poprečnog preseka 4,71 m?. 3.3. Izbor lokacije Kao što Je već napomenuto, jJamski magacin se mora izraditi u izlaznoj vazdušnoj struji, da bi gasovi ı toplota bili na putu van jame ukoliko dođe do vanrednih slučajeva (požara, eksplozije itd.). Jamski magacin bi trebalo graditi u jalovoj steni ...
... eksploziva za jedno miniranje, A – poprečni presek prostorije. U sledećoj tabeli prikazane su vrednosti količine vazduha potrebne za razređenje gasova od miniranja u zavisnosti od poprečnog preseka prostorije. Tabela 4.21. Kompresiono provetravanje KSMEx PVH KIZEx Q (m*/min) 211,29 236,23 156 ...Aleksandar Milojević. Tehnologija izrade i opremanje magacina eksploziva za potrebe ležišta bakra, 2024
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Modeliranje tehnoloških procesa u rudarstvu u uslovima nedovoljnosti podataka primenom teorije grubih skupova
Zoran M. Štirbanović (2015-07-01)Rudarstvo, a u okviru njega i priprema mineralnih sirovina, se odlikuje složenošću tehnoloških procesa što je posledica velikog broja uticajnih parametara. Samim tim je potrebno biti veoma obazriv prilikom donošenja odluka u oblasti rudarstva. U cilju što efikasnijeg funkcionisanja procesa, moguće je primeniti različite metode koje služe za pojednostavljenje procesa odlučivanja. Jedna od takvih metoda jeste i teorija grubih skupova. Ona predstavlja relativno novu matematičku teoriju koja je pogodna za razumevanje nepreciznih i nepotpunih podataka kao i za otkrivanje ...rudarstvo, priprema mineralnih sirovina, teorija grubih skupova, višekriterijumsko odlučivanje, flotacijsko jalovište, flotacijski kolektor, flotaciona mašina... Rough Sets and Soft Computing in Intelligent Agent and Web Technologies, Compiegne, France, September 19, 2005, pp. 49–55. 43. M. Yanga, F. I. Khana, R. Sadiqb, P. Amyotte, A rough set-based game theoretical approach for environmental decision-making: A case of offshore oil and gas operations ...
... L. Xi, H. Dun, A Fuzzy Model Based on Rough Set Theory for Application to Environmental Impact Evaluation of an Oil Tanker, Proceedings of the Nineteenth International Offshore and Polar Engineering Conference, Osaka, Japan, June 21-26, 2009, pp. 659–664. 48. W. C. Chen, N.-B. Chang, J.-C. Chen ...
... landfill, choosing flotation collector and choosing flotation machine. The parameters that have the most influence during these three choices were determined, and they represented criteria for selection. The selected criteria were assigned with appropriate value, and subsequently the evaluation of the ...Zoran M. Štirbanović. "Modeliranje tehnoloških procesa u rudarstvu u uslovima nedovoljnosti podataka primenom teorije grubih skupova" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-07-01)
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Kinetics, mechanism, and equilibrium studies of the reactions between a ruthenium(II) complex and some nitrogen- and sulfur-donor nucleophiles
Aleksandar M. Mijatović, Ratomir M. Jelić, Jovana Bogojeski, Živadin D. Bugarčić, Biljana Petrović (2013)Kinetika i mehanizam reakcija supstitucije između [Ru(trpi)(bpi)Cl]+ sa nukleofilima gvanozin-5′-monofosfatom, L-histidinom, tioureom i dimetilsulfoksidom proučavani su spektrofotometrijski u 0,1 M NaClO4 na 310 K. Red reaktivnosti za odabrane ligande je: tiourea > gvanozin-5′-monofosfat > L-histidin > DMSO. Ovaj red je povezan sa elektronskim, strukturnim i hemijskim karakteristikama kompleksa i nukleofila. Reakcija supstitucije sa tioureom je proučavana na tri različite temperature (288, 298 i 310 K). Negativna entropija aktivacije DS = potvrđuje asocijativni način aktivacije. Formiranje kompleksa [Ru(trpi)(bpi)H2O]2+ sa ligandima ...... titration against tris(hydroxymethyl)aminomethane. The concentration of HClO4 solution was 0.0923 M, and the concentration of NaOH solution was 0.0982 M. Nitrogen gas, used for the stirring of solutions and providing an inert 4 6 8 10 12 pH 0 20 40 60 80 100 % {[Ru(trpy)(bpy)]2(HL)} 4+ [Ru( ...
... ? and L-His or 50-GMP by potentiometric and spectrophoto- metric methods. The structures of [Ru(trpy)(bpy)Cl]? and nucleophiles are shown in Fig. 1. Results and discussion Kinetic studies Kinetics of the substitution reactions of [Ru(trpy)(bpy)Cl]? with nucleophiles Tu, L-His, DMSO, and 50-GMP ...
... by the values of the sample standard deviation S and the goodness of fit v2 (Pearson’s test). At rE = 0.1 mV (0.001 pH error) and rV = 0.005 cm3, the values of S in different sets of titrations were between 1.0 and 1.8, and v2 was between 11.0 and 13.0. The scatter of residuals (Eobs - Ecalc) versus ...Aleksandar M. Mijatović, Ratomir M. Jelić, Jovana Bogojeski, Živadin D. Bugarčić, Biljana Petrović. "Kinetics, mechanism, and equilibrium studies of the reactions between a ruthenium(II) complex and some nitrogen- and sulfur-donor nucleophiles" in Monatshefte für Chemie - Chemical Monthly, Springer Science and Business Media LLC (2013). https://doi.org/10.1007/s00706-013-1044-1
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Surface functional groups and degree of carbonization of selected chars from different processes and feedstock
Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann (2022)The knowledge ofthe structural and chemical properties of biochars is decisive for their application as technical products. For this reason, methods for the characterization of biochars that are generally applicable and allow quality control are highly desired. Several methods that have shown potential in other studies were used to investigate two activated carbons and seven biochars from different processes and feedstock. The chars were chosen to cover a wide range of chemical composition and structural properties as a hardness ...Biougalj, različiti procesi dobijanja, različite sirovine, površinski aktivne grupe, x-ray, FT-IR,XPS... (biochar) and as a means for carbon sequestration [9,10]. Meanwhile thousands of articles are available on the production, use and modification of biochars as a sustainable carbon source. Two main types of production pro- cesses are used to carbonize biomass either in contact with a gas phase (pyrolysis ...
... intercept is 0.067 and represents the mean influence of the initial composition of the biomass and the changes due thermal degradation. Decarboxylation and decarbonylation result in lower O/C and higher H/C, dehydrogenation in lower H/C and demethanization in lower H/C and higher O/C. Evolution ...
... a broad double peak for amorphous carbon between 5 and 29". In addition, HW500f shows sharp intense peaks of quartz and small peaks for Whewellite (Ca(C>Ox)·H»O) at 24.38* and 14.86* (3.650 and 2.987 A) [53] and calcite. The presence of Si and Ca is consistent with the chemical composition (Table ...Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann. "Surface functional groups and degree of carbonization of selected chars from different processes and feedstock" in PLOS ONE (2022). https://doi.org/10.1371/journal.pone.0277365
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Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources
Large collections of textual documents represent an example of big data that requires the solution of three basic problems: the representation of documents, the representation of information needs and the matching of the two representations. This paper outlines the introduction of document indexing as a possible solution to document representation. Documents within a large textual database developed for geological projects in the Republic of Serbia for many years were indexed using methods developed within digital humanities: bag-of-words and named ...... style, both city and country names must be present in the affiliations. Accordingly, we have inserted the city and country names in affiliations “1 and 2”. Please check and confirm if the inserted city and coun- try names are correct. If not, please provide us with the correct city and country names ...
... resource is selected as one facet and the words lignit ‘lignite’ and ugalj ‘coal’ are defined for keyword search, and the system will search for any of these two words in appropriate fields. The second facet is location, and the corresponding keyword is Tamnava. This query and the docu- ments retrieved are ...
... usually refers to names of persons, locations and organizations, and numeric expressions including, time, date, money and percentage. Recently other major types are being included, like “products” and “events”, but also marginal ones, like “e-mail addresses” and “book titles”. The NE hierarchy in our Named ...Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović. "Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources" in Trans. Computational Collective Intelligence - Lecture Notes in Computer Science 26, Springer (2017). https://doi.org/10.1007/978-3-319-59268-8_8
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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... approach to predict and control ground vibration in mines, Geotechnical and Geological Engineering 23(3), 2005, 249-262. 25. Khandelwal, M., Singh, T.N., Prediction of blast induced ground vibrations and frequency in opencast mine: a neural network approach, Journal of Sound and Vibration 289(4-5) ...
... Mechanics and Mining Sciences 48(1), 2011, 51-58. 35. Kamali, M., Ataei, M., Prediction of blast induced vibrations in the structures of Karoun III power plant and dam, Journal of Vibration and Control 17(4), 2011, 541-548. 36. Mohamed, M.T., Performance of fuzzy logic and artificial ...
... , 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 and metallurgy, ...Milanka N. Negovanović. "Model predviđanja potresa od miniranja na površinskim kopovima primenom simulacione metode Monte Karlo i fazi logike" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-06-30)
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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... approach to predict and control ground vibration in mines, Geotechnical and Geological Engineering 23(3), 2005, 249-262. 25. Khandelwal, M., Singh, T.N., Prediction of blast induced ground vibrations and frequency in opencast mine: a neural network approach, Journal of Sound and Vibration 289(4-5) ...
... Mechanics and Mining Sciences 48(1), 2011, 51-58. 35. Kamali, M., Ataei, M., Prediction of blast induced vibrations in the structures of Karoun III power plant and dam, Journal of Vibration and Control 17(4), 2011, 541-548. 36. Mohamed, M.T., Performance of fuzzy logic and artificial ...
... , 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 and metallurgy, ...Milanka N. Negovanović. "Model predviđanja potresa od miniranja na površinskim kopovima primenom simulacione metode Monte Karlo i fazi logike" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-06-30)
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An optimal sixteenth order family of methods for solving nonlinear equations and their basins of attraction
Dejan Ćebić, Nebojša Ralević, Marina Marčeta. "An optimal sixteenth order family of methods for solving nonlinear equations and their basins of attraction" in Mathematical Communications (2020)
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Characterization and Environmental Evaluation of Recycled Aggregates from Construction and Demolition Waste in Belgrade City Area (Serbia)
Filip Abramović, Miroslav Popović, Vladimir Simić, Vesna Matović, Radmila Šerović. "Characterization and Environmental Evaluation of Recycled Aggregates from Construction and Demolition Waste in Belgrade City Area (Serbia)" in Materials, MDPI AG (2024). https://doi.org/10.3390/ma17040820
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Sistem poslovne inteligencije za upravljanje zaštitom na radu u rudarskoj industriji
Ljiljana R. Kolonja (2016-09-23)Postojeća organizacija zaštite na radu na površinskim kopovima uglja često nije umogućnosti da blagovremeno i tačno ukaže na nedostatke, koji mogu u bližoj ilidaljoj budućnosti da budu uzrok narušavanja bezbednosti radnika, ali i uzrokoštećenja materijalnih dobara rudnika. Nemogućnost donošenja pravovremenihodluka je moguće izbeći uvođenjem softverski podržanih sistema za praćenje ianalizu bezbednosti i zaštite na radu.Osnovni cilj ove doktorske disertacije je definisanje metodologije i razvoj modelasistema upravljanja zaštitom na radu, koji će omogućiti savremen, adekvatan isveobuhvatan način praćenja i analize ...... application of occupational health and safety management systems. Safety Science, 46, 935‐948. MARSHALL, B. 2013. Facts and Figure of the Canadian Mining Industry 127 MEARNS, K. F., RHONA 1995. Risk perception and attitudes to safety by personnel in the offshore oil and gas industry: a review. Journal ...
... systems for the monitoring and analysis of occupational safety and protection at work. The basic objective of this PhD thesis is to define a methodology and develop a model for the management of protection at work that will provide for a modern, adequate and comprehensive method for ...
... Deming cycle – Check and corrective measures. Records and the analysis of indicators of the state of occupational safety, such as accidents, injuries at work and occupational diseases should enable, with the application of modern information technologies, a complex and comprehensive analysis ...Ljiljana R. Kolonja. "Sistem poslovne inteligencije za upravljanje zaštitom na radu u rudarskoj industriji" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-23)
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Multihazard Exposure Assessment on the Valjevo City Road Network
Miloš Marjanović, Biljana Abolmasov, Svetozar Milenković, Uroš Đurić, Jelka Krušić, Mileva Samardžić Petrović (2019)Miloš Marjanović, Biljana Abolmasov, Svetozar Milenković, Uroš Đurić, Jelka Krušić, Mileva Samardžić Petrović. "Multihazard Exposure Assessment on the Valjevo City Road Network" in Spatial Modeling in GIS and R for Earth and Environmental Sciences, Elsevier Inc (2019). https://doi.org/10.1016/B978-0-12-815226-3.00031-4.
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Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material
Borislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić (2022)Pyrophyllite, with the chemical formula Al2Si4O10(OH)2, is a naturally occurring and abundant van der Waals mineral belonging to the group of phyllosilicates. It is very soft, layered crystal used for sculpting and an excellent electrical and thermal insulator aimed for the operation at high pressure and temperature. Here, for the first time, two-dimensional (2D) pyrophyllite obtained by both mechanical and liquid phase exfoliation is presented and investigated at the nanoscale. The layered structure provides low friction coefficient of around ...Atomic force microscopy, Insulating properties, Nanofriction and wear, Natural two dimensional materials, Phyllosilicates, PyrophylliteBorislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić. "Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material" in Applied Surface Science, Elsevier BV (2022). https://doi.org/10.1016/j.apsusc.2022.155114
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Centar za hidrogeologiju karsta - 15 godina nauke i struke
... Serbia, Nuclear Technology and Radiation Protection, 34(4), pp. 384—391, https://doi.org/10.2298/NTRP190709039V Vasić, Lj., Palcsu, L.,, Huang, F. (2019): Groundwater gravitational circulation of Karst Veliko Vrelo and Malo Vrelo springs by isotope and the noble gas method: case study of the Beljanica ...
... Uređaj za uzimanje/pripremu uzoraka plemenitih gasova filer sa posudom za Slike terenske opreme prikazane su u poglavlju koje Je posvećeno terenskoj opremi CHK. chlorine, chromium, copper, fluorine, · iron, manganese, nitrates, nitrites, sulfates, and sulfides. Merck Ca?*- Calcium Test Method ...
... injection and groundwater pollution control. In his scientific career, he has so far published 60 scientific and professional papers as an author and co-author, both in journals from the SCI list and international monographs (a total of 9 papers and chapters) and at international and domestic c ...urednici Saša Milanović, Ljiljana Vasić, Zoran Stevanović, Branislav Petrović. Centar za hidrogeologiju karsta - 15 godina nauke i struke, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, Centar za hidrogeologiju karsta, 2023
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Mineragenetske karakteristike i potencijalnostjuvelirskih mineralnih resursa leckog vulkanskog kompleksa
Zoran Ž. Miladinović (2012-12-11)Jedan od najznačajnijih regiona u Srbiji, sa stanovišta potencijalnosti juvelirskih mneralnih resursa, predstavlja lecki vulkanski kompleks, tercijarne starosti i dominantno andezitskog sastava. Ovaj vulkanski kompleks površine preko 700km2 nalazi se u južnojSrbiji na prostoru imeđu Kuršumlije, Lebana i Medveđe.Prvi su pažnju na juvelirske mineralne sirovine ovog prostora obratili graditeljiJustinijane Prima-e (VI vek). Najintenzivnija istraživanja izvršena su u periodu 1980–1982. ali samo na malom prostoru krajnjeg jugoistočnog dela vulkanskog kompleksa.U Leckom vulkanskom kompleksu dominiraju andezitske stene i njihovi piroklastiti.Smatra se ...vulkanski kompleks, mineragenetske karakteristike, juvelirski mineralni resursi, nalazišta, potencijalnost, kvarc, ametist, ahat, kalcedon, jaspis, prognoza... Sokolov vis, Ždraljevići and alluvium of Kosanica. The mineral composition of gemstone is mainly represented by quartz (low temperature α-quartz, chalcedony („length-fast“ and „length-slow“) and jasper (mixture of quartz and chalcedony). Numerous subvarieties (regarding colour and texture characeristics) ...
... Miehe G., Fuess H., TEM Characterisation and Interpretation of Fabric and Structural Degree of Order in Microcrystalline SiO2 Phases, Contributions to Mineralogy and Petrology, v. 143, 2002, p. 360-365. Wang, Y., and Merino, E., 1995, Origin of Fibrosity and Banding in Agates from Flood Basalts: ...
... variegated color variations, landscape jasper...) and quartz (amethyst and rock crystal) are present. A number of different laboratory analisys were used: optical mineralogical and petrological, X-Ray diffraction, chemical trace analisys (ICP-MS and ICP-OES), scaning electron microscopy (SEM), d ...Zoran Ž. Miladinović. "Mineragenetske karakteristike i potencijalnostjuvelirskih mineralnih resursa leckog vulkanskog kompleksa" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2012-12-11)
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Multiple-Criteria Decision-Making in Mine Development Planning
Sanja Bajić (2023)The Borska Reka ore deposit is an experimental location where developed methodologies have been applied. It is the largest ore body within the Bor mining complex, which has been the subject of numerous studies and analyses for more than three decades. The paper focuses on the application of FAHP and the VIKOR method to address ranking of alternatives and select the optimal mining method by means of fuzzy multicriteria optimization.Sanja Bajić. "Multiple-Criteria Decision-Making in Mine Development Planning" in Proceedings of the 5th International Underground Excavations Symposium, 5-6-7 June 2023, Istanbul, Topkapi : Dinç Ofset Mat. Rek. San. ve Tic. Ltd. Şti. (2023)
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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 ...... chemolitotrophic iron- and sulfur- oxidizing bacteria and its role in delineating and sustaining acidophilic mineral-oxidizing consortia, Applied and Environmental Microbiology 76 (2): 461-472 76. Nancucheo I., Johnson D.B. (2011) Significance of microbial communities and interactions in safegurading ...
... of chalcopyrite by pure and mixed cultures of Acidithiobacillus sp. and Leptospirillum 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 ...
... Johnson D.B. (2006) Biohydrometallurgy and environment: Intimate and important interplay, Hydrometallurgy 83: 153-166 46. Johnson D.B. (2007) Physiology and biochemistry of acidophilic microorganisms in Gerday C., Glansdorff N. (editors): Physiology and Biochemistry of Extremophiles, ASM Press ...Srđan B. Stanković. "Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-11)
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Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)
Mt. Avala is located on the southern margin of the Pannonian basin (SPB), a border zone between the uplifted morphostructures of the Dinarides and Carpathian-Balkanides. Similar to the Pannonian basin, tectonostratigraphic evolution of the Mt. Avala area during the last 23 Ma has is characterized by syn- and post-rifting processes as well as tectonic inversion. Here, we present the results of field investigations of the Miocene‒Pliocene dynamics that led to different spatial positions of the same stratigraphic units (e.g. ...... (1890, 1893) and until re- cently, detailed studies about the marine Badenian shallow-water “seashore” sand were published (e.g. GANIĆ et al., 2016 and refe- rences therein). The section contains a very rich and diverse macro- and microfauna including more than 70 species of gas- tropods and bivalves, ...
... clastics, slope loess sequences and, sporadically, old landslides and colluvial products (Leštane, Torlak, Resnik, and Vrčin) up to 12 m thick. Holocene deposits are represented by thin alluvial sediments cropping out along the Zavojnička Reka valley and prolluvial- delluvial and colluvial sediments. Above ...
... sense (DIMITRIJEVIĆ, 1997; TOLJIĆ, 2006, 2016) and the Sava zone (SCHMID et al., 2008). The study area represents a region with complex geological features and is composed of various igneous and sedimentary rocks formed during the Mesozoic, Tertiary and Quaternary periods (MAROVIĆ et al., 1995, 2002 ...Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević, Miloš Radonjić. "Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)" in Geologia Croatica (2019). https://doi.org/10.4154/gc.2019.11
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Efikasnost različitih tipova glina Srbije za adsorpciju metilen plavog
Maja D. Milošević (2016-12-09)Adsorpciona efikasnost različitih uzoraka glina sa lokaliteta Srbije određenaje njihovim tretiranjem različitim koncentracijama rastvora metilen plavog (MP).Detaljna mineraloška karakterizacija ispitivanih glina i rezultati njihove interakcijesa rastvorima MP dobijeni su primenom optičkih, rendgenskih, hemijskih, DTA ispektroskopskih metoda.Na osnovu formiranja MP agregata u izmenljivim pozicijama i površiničestica gline, razlikuju se dva tipa glinovitih minerala: visoko naelektrisani(smektiti) i nisko naelektrisani (kaoliniti). Dimeri se stvaraju na naelektrisanimpovršinama, a granica njihovog razvoja omogućuje determinaciju mineralne vrste.Molekuli MP stoje pod uglom od 21.5o kada se ...minerali glina, metilen plavo, kristali metilen plavog, difuznarefleksija, adsorpcija, flokulacija, naelektrisanje slojeva... Caudo S., Centi G., Genovese C. and Perathoner S. 2007. Copper - and iron- pillared clay catalysts for the WHPCO of model and real wastewater streams from olive oil milling production. Applied Catalysis B: Environmental 70: 437 - 446 116 Celik M.S., Akin Y. and Hancer M. 1996. Decompression ...
... montmorillonites. Clays and Clay Minerals 31: 9 - 16 Sridharan A. and Prakash K. 2001. Settling Behavior and Clay Minerology. Soils and Foundations 41: 105 - 109 Srodon J. and Eberl D.D. 1984. Illite. Review in Mineralogy and Geochemistry 13: 495 - 544. Stephan E. A. and Chase G. G. 2001. A ...
... Pfeil P.C and Stevens R.E. 1967. Solubility and properties of two crystalline phases of methylene blue. Journal of chemical and engineering data 12: 4 Borkovec M., Wu Q., Degovics G., Laggner P. and Sticher H. 1993. Surface area and size distributions of soil particles. Colloids and Surfaces ...Maja D. Milošević. "Efikasnost različitih tipova glina Srbije za adsorpciju metilen plavog" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-12-09)