Претрага
2744 items
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Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays
... significantly affects the operating condi- tions Bentonite 1 Bedded and lenticular, of constant thick- ness and uniform composition, which are not divided into smaller blocks by post- tectonic and with reserves greater than 600,000 tons 40 80 160 2 Bedded and lenticular, of constant thick- ness ...
... The resources of bentonite are, after more than forty years of exploration, very large (at least according to the reserves that exist on paper), but the economic effects of that exploration are almost non-existent. Resources of bentonite and bentonitic clays of tens of millions of tonnes have been ...
... those are re- serves of A + B + C1 categories), but continuous exploitation of bentonite in Serbia never existed. The main problems of valorisation of most bentonite deposits are relatively small deposits with layers of bentonite of small thickness, mostly medium or poor quality of raw materials, and ...Vladimir Simić, Dragana Životić, Zoran Miladinović. "Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays" in Resources, MDPI AG (2021). https://doi.org/10.3390/resources10060063
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Inhibitory effect of platinum and ruthenium bipyridyl complexes on porcine pancreatic phospholipase A2
Tina Kamčeva, Jörg Flemmig, Bojana Damnjanović, Jürgen Arnhold, Aleksandar Mijatović, Marijana Petković (2011)Fosfolipaza pankreasa A2 (PLA2) igra važnu ulogu u ćelijskoj homeostazi kao iu procesu karcinogeneze. Efekti metalo-lekova koji se koriste kao hemoterapeutici na aktivnost ovog enzima nisu poznati. U ovom radu, interakcija između PLA2 svinjskog pankreasa i dva odabrana kompleksa prelaznih metala — tetrahloro(bipiridin) platine(IV) ([PtCl4(bipi)]) i dihloro (bipiridin) rutenijum(III)hlorida ([RuCl2(bipi)2) ]Cl)—proučavana je. Laserska desorpcija/jonizacija uz pomoć matriksa, vremenska masa spektrometrija (MALDI-TOF MS) i fluorescentna spektroskopija korišćeni su za analizu aktivnosti enzima u odsustvu i prisustvu metalnih kompleksa i za ...... equipped with a pulsed nitrogen laser (337 nm). For the m/z ranges 10 000–15 000, each mass spectrum was obtained operating in the positive linear mode (voltage 20 kV) with a low mass gate of 10 000 and by averaging 150 laser shots at the 27% laser power. For the lower m/z ranges, no low mass gate was ...
... penetration of tumor cells into the healthy tissue. We can only speculate that potential inhibitory effect of metallo- drugs on the secretory PLA2 might slow down the process of protrusion of tumor cells by decreasing the concentration of mediators of cellular signaling, such as metabolites of arachidonic ...
... signal-to-noise ratio of peaks corresponding to adducts of LPC 16 : 0 is used to calculate their concentration, following the equation: c(product) = (S/N of product peak)(c of int. std.)/(S/N of internal standard). In all cases we considered mass peaks corresponding to sodium adducts of product LPC 16 ...Tina Kamčeva, Jörg Flemmig, Bojana Damnjanović, Jürgen Arnhold, Aleksandar Mijatović, Marijana Petković. "Inhibitory effect of platinum and ruthenium bipyridyl complexes on porcine pancreatic phospholipase A2" in Metallomics, Oxford University Press (OUP) (2011). https://doi.org/10.1039/c1mt00088h
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Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems
Dejan Ćebić, Nebojša M. Ralević (2021)Dejan Ćebić, Nebojša M. Ralević. "Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems" in Journal of Mathematical Chemistry, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10910-021-01253-3
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A comparison between ARIMA, LSTM, ARIMA-LSTM and SSA for cross-border rail freight traffic forecasting: the case of Alpine-Western Balkan Rail Freight Corridor
Miloš Milenković, Miloš Gligorić, Nebojša Bojović, Zoran Gligorić. "A comparison between ARIMA, LSTM, ARIMA-LSTM and SSA for cross-border rail freight traffic forecasting: the case of Alpine-Western Balkan Rail Freight Corridor" in Transportation Planning and Technology, Informa UK Limited (2023). https://doi.org/10.1080/03081060.2023.2245389
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Концепт расположивости при дефинисању ефикасног одржавања помоћне механизације на површинским коповима
Radiša D. Đurić (2016-05-30)Оцена расположивости представља основну компоненту уинжењерском управљању опремом. Расположивост је свеобухватни концепткоји представља меру употребног квалитета техничких система, који садржичитаву серију парцијалних индикатора који се односе на време у раду ивреме у отказу система као и на његову функционалну погодност. Овадисертација даје структурну анализу парцијалних индикатора као и развојмодела њихове синтезе на ниво расположивости. Поменути подаци имајухибридни карактер (измерени и експертски добијени) и њихова интеграцијаи синтеза је остварена коришћењем фази пропозиције и фази закључивања.Овакав приступ омогућава оцену техничког система ...управљање опремом, инжењерство одржавања,расположивост, фази закључивање, прикупљање података, булдозер... statistical processing of data. This research has impact on proper management of track-type machines operating on lignite open pits, in the sense of predicting time to failures and cost of maintenance of these machines and on proper management of operation and maintenance in sense of asset management ...
... Systems Maintainability and Reliability, The Research Center of Dependability and Quality management DQM Lei, Y., 2008. Evaluation of three methods for estimating the Weibull distribution parameters of Chinese pine. Journal of Forest Science; 54(12): 566– 571. Murthy, D.N.P., Xie, M., Jiang, R ...
... 2007.09.007. Lei, Y., 2008. Evaluation of three methods for estimating the Weibull distribution parameters of Chinese pine. Journal of Forest Science; 54(12): 566–571 Chen, S.L., Wood, R.J.K., Wang, L., Callan, R., Powrie, H.E.G., 2008. Wear detection of rolling element bearings using multiple-sensing ...Radiša D. Đurić. "Концепт расположивости при дефинисању ефикасног одржавања помоћне механизације на површинским коповима" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-05-30)
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Optimizacija dužine strele rotornih bagera u funkciji stabilnosti kosina i efektivnosti rada na površinskim kopovima lignita Srbije
Branko M. Petrović (2016-07-12)Rotorni bageri su mašine koje se u današnje vreme najviše primenjuju uprocesu masovne eksploatacije uglja zahvaljujući, pre svega, nizu tehničkoeksploatacionihprednosti u odnosu na druge vrste bagera. Raznovrsnirudarsko-tehnički zahtevi otkopavanja doprineli su razvoju nekoliko tipova ovihmašina, tako da svaki od njih ima svoje prednosti i nedostatke u odnosu nadrugi tip.Predmet istraživanja u disertaciji odnosi se na izbor optimalnekonstrukcije strele bagera i njene usaglašenosti sa uslovima radne sredine kojiće vladati na površinskim kopovima lignita Srbije, imajući u vidu složene usloveeksploatacije (velika ...površinski kop, parametri bloka, kapacitet, rotorni bager, strelabagera, geomehanika, stabilnost kosina, ekonomija... modeling of operating machinery with the use of real data from the opencast mines of MB KOLUBARA and field measurements of the dynamic behavior of excavator during operation. Implementation of such designed methodology for optimization of BWE’s boom length in the function of slope stability ...
... opremu pri sličnim uslovima otkopavanja. Grupa autora A. Brkić, T. Manevski, D. Ignjatović, P. Jovančić i V. Spasojević-Brkić, je u svom radu Diagnostics of bucket wheel excavator discharge boom dynamic perfomance and its reconstruction [8], istražila uzroke loših dinamičkih perfomansi rotornog ...
... edition, Nevada, USA, 2013. [8.] Brkić A., Manevski T., Ignjatović D., Jovančić P., Spasojević-Brkić V.; DIAGNOSTICS OF BUCKET WHEEL EXCAVATOR DISCHARGE BOOM DYNAMIC PERFOMANCE AND ITS RECONSTRUCTION, Eksploatacija i Niezawodnosc- Maintenance and Reliability, Vol. 16, 2014. [9.] Cvetković ...Branko M. Petrović. "Optimizacija dužine strele rotornih bagera u funkciji stabilnosti kosina i efektivnosti rada na površinskim kopovima lignita Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-07-12)
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Photocatalytic Activity of the V2O5 Catalyst toward Selected Pharmaceuticals and Their Mixture: Influence of the Molecular Structure on the Efficiency of the Process
Sanja J. Armaković, Aleksandra Jovanoski Kostić, Andrijana Bilić, Maria M. Savanović, Nataša Tomić, Aleksandar Kremenović, Maja Šćepanović, Mirjana Grujić-Brojčin, Jovana Ćirković, Stevan Armaković (2023)Due to the inability of conventional wastewater treatment procedures to remove organic pharmaceutical pollutants, active pharmaceutical components remain in wastewater and even reach tap water. In terms of pharmaceutical pollutants, the scientific community focuses on -blockers due to their extensive (over)usage and moderately high solubility. In this study, the photocatalytic activity of V2O5 was investigated through the degradation of nadolol (NAD), pindolol (PIN), metoprolol (MET), and their mixture under ultraviolet (UV) irradiation in water. For the preparation of V2O5, facile ...DFT analysis, metoprolol, nadolol, nanomaterial characterization, photocatalysis, pindolol, β-blocker... morphology and composition/quality of the catalyst were analyzed on SEM (JEOL JSM-6460LV, with the operating, voltage of 20 keV) equipped with an EDS INCAx-sighi detector and an “INAx-stream” pulse processor (Oxford Instruments, Abingdon, UK). The Raman scattering, spectra of the catalyst were taken in ...
... version of the manuscript. Funding; This research was funded by the Ministry of Education, Science and Technological Devel- opment of the Republic of Serbia (grant no. 451-03-68/2022-14/200125 and grant no. 451-03-68/2022- 14/200126), Innovation Fund of the Republic of Serbia—Proof of Concept ...
... Materials, Institute of Physics Belgrade, 11000 Belgrade, Serbia Laboratory of Crystallography, Faculty of Mining, and Geology, University of Belgrade, Đušina 7, 11000 Belgrade, Serbia Institute for Multidisciplinary Research, University of Belgrade, 11000 Belgrade, Serbia University of Novi Sad, Faculty ...Sanja J. Armaković, Aleksandra Jovanoski Kostić, Andrijana Bilić, Maria M. Savanović, Nataša Tomić, Aleksandar Kremenović, Maja Šćepanović, Mirjana Grujić-Brojčin, Jovana Ćirković, Stevan Armaković. "Photocatalytic Activity of the V2O5 Catalyst toward Selected Pharmaceuticals and Their Mixture: Influence of the Molecular Structure on the Efficiency of the Process" in Molecules, MDPI AG (2023). https://doi.org/10.3390/molecules28020655
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Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications
The Vardar-Tethyan mega-suture between the Eurasian and Adria (Gondwana) margins comprises remnants of oceanic lithosphere of Neotethys and distal parts of the adjacent continental margins including unconformable Late Cretaceous sedimentary cover and Cenozoic igneous rocks of post-obduction age. This study provides kinematic constraints for displacements and rotations affecting the Serbian part of the West Vardar and Jadar-Kopaonik units after the closure of the Neotethyan (= Sava) Ocean. The targets of the paleomagnetic research were Late Cretaceous sediments representing an ...... AMS was measured for all sites. The degree of anisotropy varied between 1.014 and 1.046 for most of them, higher values were only observed for sites 12 and 16 (1.095 and 1.125, respectively). The orientations of the principal susceptibility axes are random for sites 9–12 and 15. Concerning the rest ...
... Serbia). MSc thesis, University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia, 108 pp. (in Serbian). Gajić, V. (2014). Sedimentology of Upper Cretaceous of the central part of the Vardar zone. Ph.D. dissertation, University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia ...
... dome of Beli Kamen (Mt. Rudnik, Central Serbia) – the example of a specific interaction of lamprophiric and granitoid magma. In S. Karamata & S. Janković (Ed.), Geology and Metallogeny of the Dinarides and the Vardar zone, (pp. 255–267). The Academy of Sciences and Arts of the Republic of Srpska ...Vesna Lesić, Emo Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov. "Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications" in Swiss Journal of Geosciences, Basel : Springer International Publishing (2018). https://doi.org/10.1007/s00015-018-0321-8
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Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content
Nina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović (2019)Mesoporous anatase nanopowders were doped with 0.05−0.5 mol% of W6, in order to obtain more efficient photocatalyst than TiO2 Degussa P25 in the degradation of amitriptyline (AMI) under simulated solar irradiation (SSI). Dominant XRPD peaks were ascribed to anatase phase, with additional peaks which could correspond to brookite, TiO2 bronze and sodium titanate, Na2Ti9O19. The Raman scattering measurements have confirmed anatase as dominant phase, with broad Raman feature at ~270 cm−1 possibly related to Ti–O–Na stretching vibration. All W-doped ...Sol-gel synthesis, Doped titania nanopowders, XRPD, Raman spectroscopy, Adsorption and photocatalytic degradation, Psychiatric drugsNina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović. "Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content" in Journal of Sol-Gel Science and Technology, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s10971-019-04925-4
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Оптимизација управљања процесима рекултивације површинских копова угља
Bojan S. Dimitrijević (2014-05-30)Ширење површинске експлоатације минералних сировина а нарочито енергетских ресурсафосилних горива, чине површинске копове угља просторно доминантним објектима великих рударскихбасена како у нас тако и у свету. Експлоатациона активност, прати негативне еколошке утицаје наживотну средину шире околине, што нас обавезује на интегрално планирање, ревитализацију,рекултивацију и уређење нарушеног простора за његово поновно хумано коришћење упостексплоатационом периоду. Постексплоатационо санирање и уређење предела површинских коповаи одлагалишта односно нарушеног простора изазваног рударским радовима и пратећих објеката,представља синтетички мултидисциплинарно-интердисциплинаран веома комплексан вишефазниинжењерски пројектни задатак.У уводном ...рекултивација, постексплоатациони предео, површински коп угља,вишеатрибутна анализа, одлучивање, процеси, рекултивационо решење... nature since it represents a synthesis of the mining- technological, engineering-geological (geotechnical and hydrogeological), hydrotechnical and bioengineering (agronomy and forest melioration procedures), as well as other technical measures taken with the purpose of transforming the technogenic downgraded ...
... first-ranked solutions by testing orders the following results were obtained: 1. Klenovnik - where the demoted areas of the mining area are proposed to be functionally returned to the forest and agricultural plantations, combined aquatic surfaces, park, sport and recreational and similar contents, 2. Tamnava ...
... variation that provides, alongside with other high-ranked solutions, the complete image of the post-mining areas arrangement. The land reclamation habit worldwide shown that it is possible to create new agricultural, forest, aquatic, meadowland and other areas, which is a goal to be aspired for in our country ...Bojan S. Dimitrijević. "Оптимизација управљања процесима рекултивације површинских копова угља" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-05-30)
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Model za optimizaciju graničnog saržaja metala u rudi u funkciji dugoročnog planiranja površinskih kopova
Daniel P. Kržanović (2016-06-14)Optimizacija graničnog sadržaja metala u rudi jedan je od osnovnih koraka u planiranju i dizajniranju površinskih kopova i ima za cilj postizanje maksimalne neto sadašnje vrednosti (NPV). Iz tog razloga, optimizacija graničnog sadržaja i danas je predmet mnogih istraživanja u rudarskoj nauci, sa ciljem rešavanja praktičnih problema u eksploataciji ležišta.Dugoročno planiranje eksploatacije na površinskim kopovima podrazumeva sagledavanje svih relevantih parametara i faktora (geologije rudnog ležišta, tehnologije proizvodnog procesa, kapaciteta otkopavanja i prerade, troškova, cena metala, iskorišćenja i dr) kako ...površinski kop, dugoročno planiranje, optimizacija graničnog sadržaja, maksimizacija neto sadašnje vrednosti (NPV).... Net Operating Assets) ROV – Realne opcije vrednosti (engl. Real Options Value) RP – Premija rizika (engl. Risk Premium) SA – Simulirano kaljenje (engl. Simulated Annealing) SMK – Sistemi mravljih kolonija WACC – Ponderisana prosečna cena kapitala (engl. Weighted Average Cost of Capital) ...
... grafičke poslove Zagreb, https://bib.irb.hr/datoteka/389907.Tiskana_knjiga.pdf. Mardones, J.L., 1993, Option valuation of real assets: application to a copper mine with operating flexibility, Resour. Policy 19 (1), pp. 51–65. Martinez L.A., Leiva, O., Araya, J., 2011, What does geostatistics and ...
... IN THE FUNCTION OF LONG-TERM PLANNING OF THE OPEN PITS ABSTRACT Optimization the cut off grade of metal in the ore is one of the basic steps in planning and design of the open pit and is aimed to achieve maximum net present value (NPV). For this reason, the optimization of cut off grade is ...Daniel P. Kržanović. "Model za optimizaciju graničnog saržaja metala u rudi u funkciji dugoročnog planiranja površinskih kopova" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-06-14)
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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). ...... ited wet forest swamp. The high content of carbonate and sulphate minerals with relatively high Ca and total sulphur content (Sdb) indicate the influence of neutral to alkaline groundwater. Further more, a good negative correlation coefficient between Ca and ash content (Table 8; Table SVI of the S ...
... B.H8.317:1988, (1988): Methods of analysis of coal and coke Determination of volatile matter content.– Institute for Standardization of Serbia, Belgrade, Serbia, 6 p. (in Serbian). SRPS B.H8.318:1972, (1972): Methods of analysis of coal and coke Determination of gross calorific value by the ...
... central part of Serbia. The total thickness of Neogene sediments is estimated at 1000 m. The Neogene units of the Kovin deposit Figure 1. Location of the Kovin deposit (a, b) and simplified geological map (c) of the Kovin deposit with sample locations (modified after Basic Geologic Map of Ser- bia, section ...Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović. "Distribution of major and trace elements in the Kovin lignite (Serbia)" in Geologia Croatica, Croatian Geological Survey (2019). https://doi.org/10.4154/gc.2019.06
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Fuzzy Model for Risk Assessment of Machinery Failures
The main goal of this research was the development of an algorithm for the implementation of negative risk parameters in a synthesis model for a risk level assessment for a specific machine used in the mining industry. Fuzzy sets and fuzzy logic theory, in combination with statistical methods, were applied to analyze the time picture state of the observed machine. Fuzzy logic is presented through fuzzy proposition and a fuzzy composition module. Using these tools, the symmetric position of the ...... time period of 7 h, which was the shortest time the crushing machine system operated between failures, while class one was assigned a time period of 3500 h, which was the longest operating time between two failures of the same type. The time to repair the machine went through the process of fuzzification ...
... frequency of failure (of the main computer). Symmetry 2020, 12, 525 18 of 26 5.1.3. Fuzzification of the Probability of Detecting a Failure Detecting potential machine failures is only possible with years of work experience in maintaining the analyzed system. Fuzzy sets of the probability of detecting ...
... type of failure that included the following indicators: • The impact of a failure on the health and safety of employees working on the crushing machine; • The impact of a failure on the environment; • The probability of the detection of a failure at an opportune time with regular inspection of the ...Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković. "Fuzzy Model for Risk Assessment of Machinery Failures" in Symmetry, MDPI AG (2020). https://doi.org/10.3390/sym12040525
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Analiza mogućnosti primene tehnologije hvatanja i skladištenja ugljenika (CO2) na objektima Nis-A
Isidora Veljanoski (2024)U ovom radu opisana je primena CCUS tehnologija u kompaniji NIS i na koji način treba da se optimizuje da bi projekat bio rentabilan.U prvom i drugom poglavlju opisani su energetski trendovi i tranzicije, razvojni mehanizmi za regulisanje emisije gasova staklene baste i o ugljen-dioksidu kao hemijskom jedinjenju i šta je to CCUS.U trećem, četvrtom i petom poglavlju je detaljnije opisano izdvajanje, hvatanje, transport i skladištenje ugljen-dioksida.Šesto poglavlje i sedmo poglavlje obuhvataju rešenja za razvoj i realizaciju CCUS projekata ...energetski trendovi, ugljen-dioksid, CCUS, izdvajanje, hvatanje, transport i skladištenje CO2, ležište, ekonomija projekta... (forbes.com) (5.6.2024) [2] D. Y. C. Leung, G. Caramanna, M. Mercedes Maroto-Valer, An overview of current status of carbon dioxide capture and storage technologies, URL: An overview of current status of carbon dioxide capture and storage technologies - ScienceDirect (2014) [3] V. Gonzales, A. Krupnick ...
... радовима запослених доступним у слободном приступу. - Претрага репозиторијума доступна је 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 ...
... Construction time in years Financing Debt finance of CAPEX Interest rate of bank Debt period Bank loan insurance % unit RSD/tCO2 RSD RSD RSD RSD/tCO2 RSD RSD unit % % % unit year year year unit % % years of residual debt Tabela 8.5 — Pretpostavke projekta ...Isidora Veljanoski. Analiza mogućnosti primene tehnologije hvatanja i skladištenja ugljenika (CO2) na objektima Nis-A, 2024
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Rezultati ispitivanja parametara čvrstoće i dinamičkih svojstava mermera i mogućnost njihove korelacije
Ispitivanja stena kao radne sredine, odnosno materijala sa kojim se gradi, na kome se gradi i u kome se gradi, svojom složenošću zahteva njeno svestrano izučavanje po velikom broju parametara. Zadatak Mehanike stena je da što bolje upozna ponašanje stenske mase i njenu otpornost na dejstvo pritiska, zatezanja i smicanja, kao i dinamičkih svojstava. Poznavanje navedenih parametara i njihova korelacija omogućavaju pouzdaniji izbor parametara za projektovanje danas sve zahtevnijih uslova kako podzemne, tako i površinske eksploatacije. U ovom radu ...mermer, jednoosna čvrstoća na pritisak, čvrstoća na istezanje, brzina longitudinalnih elastičnih talasa, korelacijaJelena Majstorović-Necković, Vladimir Čebašek, Veljko Rupar. "Rezultati ispitivanja parametara čvrstoće i dinamičkih svojstava mermera i mogućnost njihove korelacije" in 11. Međunarodna konferencija “Ugalj i kritični materijali" CCM 2023, Zlatibor, 11-14. oktobar 2023., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
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Hronološki pregled razvoja površinske eksploatacije lignita u Srbiji
U ovom preglednom radu dat je istorijski pregled razvoja površinske eksploatacije lignita na teritoriji Srbije, uz kratak osvrt na geološki nastanak i kvalitet i rezerve uglja, kao i mogućnosti korišćenja za dalju upotrebu. Kolubarski, Kostolački i Kovinski ugljeni baseni lignita u Srbiji, ne računajući Kosovsko-Metohijski i Drenički u sastavu AP Kosovo i Metohija po Rezoluciji 1244 UN, su ležišta najrasprostranjenijeg uglja - lignita u Srbiji koji se eksploatiše od druge polovine 20. veka na velikom broju površinskih kopova ...Bojan Dimitrijević, Radmila Gaćina, Bogoljub Vučković. "Hronološki pregled razvoja površinske eksploatacije lignita u Srbiji" in XI Međunarodna konferencija ugalj i kritični mineral CCM 2023, Zlatibor, 11-14. oktobar 2023., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
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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... king: A case of offshore oil and gas operations, Process Safety and Environmental Protection 9 (1), 2013, pp. 172–182. 44. L. Deng, B. Karney, Application of enhanced rough set approach to the evaluation of urban water resources utilization: A case study of Beijing, Proceedings of International ...
... 12, 1998, pp. 1179–1190. 79. D. Panias, Consequences of environmental issues on sustainability of metal industries in Europe: The case study of Bor, Metalurgija - Journal of Metallurgy, Vol. 12, No. 4, 2006, pp. 239-250. 80. Municipality of Bor, Local Environmental Action Plan, Bor, Serbia, 2003 ...
... Beograd, 2015 UNIVERSITY OF BELGRADE FACULTY OF MINING AND GEOLOGY Zoran M. Štirbanović MODELING TECHNOLOGICAL PROCESSES IN MINING IN CONDITION OF INSUFFICIENT DATA BY APPLICATION OF ROUGH SET THEORY Doctoral Dissertation ...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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Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija
Srđan D. Kostić (2013-11-04)U ovoj disertaciji, cilj istraživanja bio je određivanje dinamičkih svojstava potresaizazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija.Analiza potresa izvedena je sa dva aspekta – u prvom delu istraživanja izučavane suvremenske serije oscilovanja tla za vreme potresa, a u drugom delu vršena je analizastabilnosti fenomenološkog Baridž-Knopof modela bloka sa oprugom. Vremenske serijeoscilovanja tla proučavane su primenom postupka analize surogat podataka, kao ikorišćenjem metoda analize nelinearnih vremenskih serija (primena teoreme orazvijanju skalarne vremenske serije). Analiza vremenskih serija izvedena je ...potres, naponsko stanje, podzemne prostorije, bifurkacije, vremenskaserija, deterministički haos, stohastičnost, perturbacije, vremensko kašnjenje, jačina trenja... In D. A. Rand and L.-S. Young. Dynamical Systems and Turbulence, Lecture Notes in Mathematics, vol. 898. Springer-Verlag. 366–381. 177.Titchmarsh, E.C. 1939. Theory of functions, Oxford University Press, Oxford. 178.Tiwari, R.K, Sri Kakshmi, S., Rao, K.N.N. 2004. Characterization of earthquake ...
... nature of the strong ground motion during the seismic event and its model of nucleation could be explained by the fact the both the process of nucleation and propagation of seismic waves represent dissipative systems. In other words, in the process of seismic nucleation, one part of energy ...
... Brady, A. G. 1975. On the correlation of seismic intensity with peaks of recorded strong ground motion. Bulletin of Seismological Society of America 65, 139 - 162. 181.Urquizu, M., Correig, A. M. 1998. Analysis of seismic dynamical systems. Journal of Seismology 2, 159-171. 182.Vieira, M.D ...Srđan D. Kostić. "Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-11-04)
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Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija
Srđan D. Kostić (2013-11-04)U ovoj disertaciji, cilj istraživanja bio je određivanje dinamičkih svojstava potresaizazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija.Analiza potresa izvedena je sa dva aspekta – u prvom delu istraživanja izučavane suvremenske serije oscilovanja tla za vreme potresa, a u drugom delu vršena je analizastabilnosti fenomenološkog Baridž-Knopof modela bloka sa oprugom. Vremenske serijeoscilovanja tla proučavane su primenom postupka analize surogat podataka, kao ikorišćenjem metoda analize nelinearnih vremenskih serija (primena teoreme orazvijanju skalarne vremenske serije). Analiza vremenskih serija izvedena je ...potres, naponsko stanje, podzemne prostorije, bifurkacije, vremenskaserija, deterministički haos, stohastičnost, perturbacije, vremensko kašnjenje, jačina trenja... In D. A. Rand and L.-S. Young. Dynamical Systems and Turbulence, Lecture Notes in Mathematics, vol. 898. Springer-Verlag. 366–381. 177.Titchmarsh, E.C. 1939. Theory of functions, Oxford University Press, Oxford. 178.Tiwari, R.K, Sri Kakshmi, S., Rao, K.N.N. 2004. Characterization of earthquake ...
... nature of the strong ground motion during the seismic event and its model of nucleation could be explained by the fact the both the process of nucleation and propagation of seismic waves represent dissipative systems. In other words, in the process of seismic nucleation, one part of energy ...
... Brady, A. G. 1975. On the correlation of seismic intensity with peaks of recorded strong ground motion. Bulletin of Seismological Society of America 65, 139 - 162. 181.Urquizu, M., Correig, A. M. 1998. Analysis of seismic dynamical systems. Journal of Seismology 2, 159-171. 182.Vieira, M.D ...Srđan D. Kostić. "Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-11-04)
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Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu
Nikoleta Aleksić (2021)... Dzierzanowski, K., Popek, R., Gawronska, H., Sæbø, A., Gawronski, S.W. (2011). Deposition of particulate matter of different size fractions on leaf surfaces and in waxes of urban forest species. International Journal of Phytoremediation, 13, 1037–1046. [24] Bargagli, R. (1998). Trace elements in terrestrial ...
... Technology , 38 (1), 11-41 [6] Kobya, M., Demirbas, E., Ulu, F. (2016). Evaluation of operating parameters with respect to charge loading on the removal efficiency of arsenic from potable water by electrocoagulation. Journal of Environmental Chemical Engineering, 4, 1484–1494. Voda VIII Memorijalni ...
... (2007). Denitrification and N-Cycling in Forest Ecosystems – Chapter 22. Biology of the Nitrogen Cycle – Book, Edited by H. Bothe, S.J. Ferguson and W.E. Newton by Elsevier B.V [4] Stocks-Fischer S., Galinat J., Bang S. (1999). Microbiological precipitation of CaCO3. Soil Biology and Biochemistry ...Nikoleta Aleksić. "Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu" in VIII Memorijalni naučni skup iz zaštite životne sredine „Docent dr Milena Dalmacija“, 2021, Prirodno-matematički fakultet, Novi Sad (2021)