Претрага
2184 items
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Overwiew of In-Pit Crushing & Conveying Technology in Open Pit Mines
The conditions under which contemporary surface mining operations is carried out obviously becoming increasingly complex. In such complex conditions, the optimization of haulage systems as the technological phase with the largest share in the total operating costs, is very important from the aspect of achieving profitability of the mining project. In a large number of cases, the application of traditional haulage systems with trucks (as the most dominant type of haulage in open pit mines) does not lead to ...Ali Nasirinezhad, Dejan Stevanović, Dragan Ignjatović, Petar Marković. "Overwiew of In-Pit Crushing & Conveying Technology in Open Pit Mines" in 8th International Conference MIining And Environmental Protection, Sokobanja, 22-25 September 2021, University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia (2021)
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Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions
Martin Fabián, Bratislav Antić, Vladimír Girman, Milica Vučinić-Vasić, Aleksandar Kremenović, Shigeru Suzuki, Horst Hahn, Vladimír Šepelák (2015)A series of nanostructuredfluorite-type Ce1–xYxO2–δ (0rxr0.35) solid solutions, prepared via highenergy milling of the CeO2/Y2O3mixtures, are investigated by XRD, HR-TEM, EDS and Raman spectroscopy. For thefirst time, complementary information on both the long-range and short-range structural features of mechanosynthesized Ce1–xYxO2–δ, obtained by Rietveld analysis of XRD data and Raman spectroscopy, is provided. The lattice parameters of the as-prepared solid solutions decrease with increasing yttrium content. Rietveld refinements of the XRD data reveal increase in microstrains in the host ceria ...Martin Fabián, Bratislav Antić, Vladimír Girman, Milica Vučinić-Vasić, Aleksandar Kremenović, Shigeru Suzuki, Horst Hahn, Vladimír Šepelák. "Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions" in Journal of Solid State Chemistry, Elsevier BV (2015). https://doi.org/10.1016/j.jssc.2015.06.027
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A survey of greenhouse gases production in central European lignites
Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska (2021)... deposits exploited in Poland, Slovenia and Serbia, which represent various lithotypes, ages and burial histories. GHG production was studied along with a range of physical and chemical parameters that are crucial for microbial growth and activity. 2. Materials and methods 2.1. Sampling sites Lignites ...
... suggested that detroxylytic and xylodetritic lig- nites have a higher CO2-binding capacity than xylitic ones (Bielowicz and Baran, 2019). The reason may be that the xylite-rich materials have massive structure (Widera, 2016b) with remarkably lower poros- ity (Bielowicz and Baran, 2019) thus providing ...
... 3). TheNMDS ordination plot, based on the physical and chemical prop- erties of lignites, shows that there was significant separation among the samples (Fig. 4). This confirms that the studied materials created dis- tinct environmental niches and points to the fact that the indigenous microbial communities ...Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska. "A survey of greenhouse gases production in central European lignites" in Science of The Total Environment, Elsevier (2021). https://doi.org/10.1016/j.scitotenv.2021.149551
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Geopolymer materials based on the electric arc furnace slag
Nikolić Irena, Častvan Janković Ivona, Radmilović Vuk, Karanović Ljiljana, Marković Smilja, Mentus Slavko, Radmilović Velimir (2013)Nikolić Irena, Častvan Janković Ivona, Radmilović Vuk, Karanović Ljiljana, Marković Smilja, Mentus Slavko, Radmilović Velimir. "Geopolymer materials based on the electric arc furnace slag" in Fifteenth Annual Conference YUCOMAT 2013 O.S.E.1, Herceg Novi, Montenegro: (2013): 47
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Titanium oxyde-Materials for greener environment - Оксиди титана-Материјали за здравију животну средину
Veljković Ivana, Poleti Dejan, Karanović Ljiljana, Simičić Miloš, Zdujić Miodrag, Jovalekić Čedomir (2010)Veljković Ivana, Poleti Dejan, Karanović Ljiljana, Simičić Miloš, Zdujić Miodrag, Jovalekić Čedomir. "Titanium oxyde-Materials for greener environment - Оксиди титана-Материјали за здравију животну средину" in XVII Konferencija Srpskog kristalografskog društva, Izvodi radova, Ivanjica, Srbija:Srpsko kristalografsko društvo (2010): 32-33
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Geotehnički efekti razaranja komunalnog otpada različitim postupcima zbijanja
Jovana M. Janković Pantić (2022)Odlaganje otpada na komunalne deponije predstavlja osnovni način zbrinjavanja otpada u Srbiji. Kako bi se prostor za deponovanje materijala racionalno koristio potrebno ga je svakodnevno zbijati sa unapred definisanom količinom vode koja se dodaje. Dobro zbijeni komunalni otpad zauzima manju zapreminu i omogućuje sigurnije skladištenje, pa je korisno prethodno laboratorijski odrediti parametre zbijanja: maksimalnu suvu zapreminsku težinu (dmax) i optimalnu vlažnost (wopt). U Srbiji do sada nisu određivani parametri zbijanja, dok je u svetu primenjivana standardna metoda (Proktorov opit) ...Jovana M. Janković Pantić. Geotehnički efekti razaranja komunalnog otpada različitim postupcima zbijanja, Beograd : [J. Janković Pantić], 2022
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BST Ceramics Obtained by Hydrothermally Assisted Complex Polymerization Method
Ćirković Jovana, Vojisavljević Katarina, Vulić Predrag, Dojčinović Biljana, Branković Zorica, Srećković Tatjana, Branković Goran (2015)Ćirković Jovana, Vojisavljević Katarina, Vulić Predrag, Dojčinović Biljana, Branković Zorica, Srećković Tatjana, Branković Goran. "BST Ceramics Obtained by Hydrothermally Assisted Complex Polymerization Method" in Book of abstracts of the 3rd Conference of the Serbian Society for Ceramic Materials, June 15-17. 2015. Belgrade, Serbia, Beograd:The Serbian Society for Ceramic Materials (2015): 84-84
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Application of the Final Flotation Waste for Obtaining the Glass-ceramic Materials
Mira Cocić, Mihovil Logar, Suzana Erić, Viša Tasić, Snežana Dević, Saša Cocić, Branko Matović (2017)Mira Cocić, Mihovil Logar, Suzana Erić, Viša Tasić, Snežana Dević, Saša Cocić, Branko Matović. "Application of the Final Flotation Waste for Obtaining the Glass-ceramic Materials" in Science of Sintering 49, Belgrade:International Institute for the Science of Sintering (2017): 431-433
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Photocatalytic degradation of textile dye with hydrothermally modified nanoanatase
Simović Bojana, Poleti Dejan, Kovač Sabina, Bjelajac Anđelika, Dapčević Aleksandra, Branković Goran (2015)Simović Bojana, Poleti Dejan, Kovač Sabina, Bjelajac Anđelika, Dapčević Aleksandra, Branković Goran. "Photocatalytic degradation of textile dye with hydrothermally modified nanoanatase" in 3rd Conference of the Serbian Society for Ceramic Materials 3rd Conference of the Serbian Society for Ceramic Materials 3rd Conference of the Serbian Society for Ceramic Materials, Beograd, Srbija :Institute for Multidisciplinary Research, University of Belgrade (2015): 82-82
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The influence of building materials on salt formation in rural environments
Matović Vesna, Erić Suzana, Srećković Batoćanin Danica, Colomban Philippe, Kremenović Aleksandar (2014)Matović Vesna, Erić Suzana, Srećković Batoćanin Danica, Colomban Philippe, Kremenović Aleksandar. "The influence of building materials on salt formation in rural environments" in Environmental Earth Sciences 72 no. 2, Berlin, Heidelberg:Springer (2014): 1939-1951. https://doi.org/10.1007/s12665-014-3101-4
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Interaction between binding materials—the cause of damage to gabbro stone on the monument to the unknown soldier (Serbia)
Matović Vesna, Vasković Nada, Erić Suzana, Srećković Batoćanin Danica. "Interaction between binding materials—the cause of damage to gabbro stone on the monument to the unknown soldier (Serbia)" in Environmental Earth Sciences 60 no. 6, :Springer (2010): 1153-1164. https://doi.org/10.1007/s12665-009-0257-4
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Substitution reactions of some novel sterically hindered monofunctional Pd(II) complexes
Reakcije supstitucije monofunkcionalnih kompleksa [(TLtBu)PdCl]+ i [Pd(tpdm)Cl]+, gde je TLtBu = 2,6-bis[(1,3-di-terc-butilimidazolin-2-imino)metil]piridin i tpdm = terpiridindimetan, sa nukleofilima kao što su: tiourea, I−, Br−, NO2−, piridin i dimetil-sulfoksid (DMSO) proučavani su u 0,1 M vodenom rastvoru NaClO4 u prisustvu 10 mM NaCl. Reakcije su sprovedene na tri različite temperature (288, 298 i 308 K) korišćenjem tehnike zaustavljenog protoka na različitim temperaturama. Reakcije supstitucije su praćene pod uslovima pseudo prvog reda sa velikim viškom nukleofila. Dobijeni rezultati pokazuju da kompleks ...... [Pd(tpdm)Cl]+ [23,24]. We studied and report here complex formation of [(TLtBu)PdCl]+ and [Pd(tpdm)Cl]+ with different nucleophiles (Fig. 1) in 0.1 M NaClO4 aqueous solution and in the presence of 10 mM NaCl to prevent spontaneously hydrolysis. 2. Experimental 2.1. Materials and methods The ligands thiourea ...
... [Pd(tpdm)Cl]* [23,24]. We studied and report here complex formation of [(TL")PdCl]* and [Pd(tpdm)Cl]* with different nucleophiles (Fig. 1) in 0.1 M NaClO,4 aqueous solution and in the presence of 10 mM NaCl to prevent spontaneously hydrolysis. 2. Experimental 2.1. Materials and methods The ligands thiourea ...
... 21,22] and with the aim to contribute towards our previously publishedwork, we synthesized novel tridentate nitrogen-donor li- gands TLtBu = 2,6-bis[(1,3-di-tert-butylimidazolin-2-imino)methyl] pyridine and tpdm = terpyridinedimethane and the corresponding Pd(II) complexes, [(TLtBu)PdCl]+ and [Pd(tpdm)Cl]+ ...Aleksandar Mijatović, Jovana Bogojeski, Biljana Petrović, Živadin D. Bugarčić. "Substitution reactions of some novel sterically hindered monofunctional Pd(II) complexes" in Inorganica Chimica Acta, Elsevier BV (2011). https://doi.org/10.1016/j.ica.2011.11.031
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Mineralogical Discrimination between Authentic and Recent Imitations of Pottery Manufacture in Zlakusa, Serbia
... discovery of new techniques and production processes, the old ways, already adopted and mastered continued to live and actively coexist until today. This also brings a rise in imitations of pottery manufacture. The village of Zlakusa lacks proper materials, thus the raw clay originates ...
... electric drive) marked as -4- and by moulding (application of a mould) marked as -5-. Close examination of surface features and morphology was conducted to determine the characteristic attributes for a specific technique. Phase and mineral composition, texture, and structure of the samples ...
... surface colour, the appearance of bumps and bulges, horizontal lines or their absence, smooth surface and the presence of irregularities are the main indicators for assessing differences in the production of vessels. The maximum temperature, heating mode and oxidation atmosphere in the ovens were ...Maja Milošević, Mihovil Logar, Biljana Đorđević. "Mineralogical Discrimination between Authentic and Recent Imitations of Pottery Manufacture in Zlakusa, Serbia" in Nordic Clay Meeting/3rd Symposium Clays & Ceramics 2021, The Latvian Clay Science Society (2021)
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Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides
Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović (2021)... brittle and brittle-viscous composi- tion, respectively. 3.3. Model materials and scaling In our models, the brittle layer consists of dry quartz sand with a bulk density of ρ = 1500 kg/m3, a cohesion of 10–40 Pa and coefficients of friction of 0.63, 0.48 and 0.52, representing peak, dynamic and reac- ...
... Kapitan-Dimitrievo pluton and the Maritsa shear zone (Central Bulgaria): magnetic and visible fabrics analysis. Int. J. Earth Sci. 101, 747–759. Hirth, G., Teyssier, C., Dunlap, W.J., 2001. An evaluation of quartzite flow laws based on comparisons between experimentally and naturally deformed rocks ...
... scaling, materials and quantification, with an application to subduction experiments. J. Geodyn. 100, 7–32. Schmid, S.M., Bernoulli, D., Fügenschuh, B., Matenco, L., Schefer, S., Schuster, R., Tischler, M., Ustaszewski, K., 2008. The Alpine–Carpathian–Dinaridic orogenic system: correlation and evolution ...Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović. "Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides" in Journal of Structural Geology, Elsevier BV (2021). https://doi.org/10.1016/j.jsg.2021.104386
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Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation
The Dark Gate is the monument of culture, part of the cultural and historical complex of the Belgrade Fortress. It is constructed of limestone blocks that after 270 years of exposure to environmental conditions and different anthropogenic influences show wide ranges of decay forms. During 2007, detail registration of all built limestone microfacies and weathering forms was done using tools of monument mapping. A correlation scheme ‘‘intensity– damage category’’ was made according to the type, intensity, and distribution of ...... rudstone microfacies are characterized by loss of stone materials in forms of surface recession and outburst, while grainstone microfacies is marked by relief loss of stone materials and detachment of crust following by granular disintegration and flaking. If we compare lithological maps with damage ...
... prolonged periods, repeating of cycles of dissolve, wetting-drying and freeze-thaw caused continual increas- ing intensities of decay and very heavy damage in different forms of loss of stone materials (surface recession, relief, and outburst). The present state of the gate is result of the complex ...
... brethane — a report of an 18-year review of brethane-treated sites. In: Fidler J (ed) Stone: stone building materials, construction, and associated component systems: their decay and treatment, english heritage research transactions. 2. James & James, London, pp 3-18 6193 Massa S, Naldini ...Maja Franković, Nevenka Novaković, Vesna Matović. "Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation" in Environmental Earth Sciences, Springer Science and Business Media LLC (2015). https://doi.org/10.1007/s12665-014-3843-z
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Comprehensive Profiling of Microbiologically Induced CaCO3 Precipitation by Ureolytic Bacillus Isolates from Alkaline Soils
Olja Šovljanski, Lato Pezo, Jovana Stanojev, Branimir Bajac, Sabina Kovač, Elvira Tóth, Ivan Ristić, Ana Tomić, Aleksandra Ranitović, Dragoljub Cvetković, Siniša Markov (2021)MICP process, kinetic study, calcite, vaterite, MALDI-TOF identification, Bacillus licheniformis, Sporosarcina pasteurii... differential thermal and thermogravimetric analysis (DTA/TGA), and scanning electron microscopy (SEM). 2. Materials and Methods A total number of 43 bacterial isolates (I1-I3; II1-II10; III1-III20; IV1-IV10) from soil samples were analyzed and characterized as alkaline-adapted and sporogenic bacteria ...
... matrix, etc. Supplementary Materials: The supplementary materials are available online at https://www.mdpi. com/article/10.3390/microorganisms9081691/s1. Table S1: Standard Score Analyses Database, Table S2: The “goodness of fit” tests for Urea concentration, pH value and cell concentration prediction ...
... bacteria can modify soil characteristics resulting in stabilization from the action of wind and water erosion [3], removing heavy metals from wastewaters [4], or promoting the self-healing effect of calcareous materials [5]. The water absorption of the monumental limestone was reduced by 60% after the MICP ...Olja Šovljanski, Lato Pezo, Jovana Stanojev, Branimir Bajac, Sabina Kovač, Elvira Tóth, Ivan Ristić, Ana Tomić, Aleksandra Ranitović, Dragoljub Cvetković, Siniša Markov. "Comprehensive Profiling of Microbiologically Induced CaCO3 Precipitation by Ureolytic Bacillus Isolates from Alkaline Soils" in Microorganisms, MDPI AG (2021). https://doi.org/10.3390/microorganisms9081691
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Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu
Nikoleta Aleksić (2021)... isomers and their mutagenic activities, Chemosphere, 104 228-23. [6] Takamura-Enya, T., Suzuki, H, Hisamatu, Y. (2006) Mutagenic activities and physicochemical properties of selected nitrobenzanthrones, Mutagenesis, 21(6), 399-404. [7] Onchoke, KK. (2011) DFT/TD-DFT Investigation of Optical Absorption ...
... Milićević, T. 2018. Doctoral dissertation: An integrated approach to the investigation of potentially toxic elements and magnetic particles in the soil−plant−air system: bioavailability and biomonitoring, Major scientific field: Chemistry; Specific scientific field: Environmental chemistry, UDC number: ...
... toxic elements and magnetic particles in vineyard through the entire grapevine season. Ecotoxicol. Environ. Saf. 163, 245–254. [5] Milićević, T., Aničić Urošević, M., Vuković, G., Škrivanj, S., Relić, D., Frontasyeva, M.V., Popović, A. (2017b). Assessment of species-specific and temporal variations ...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)
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Mineral Resources of Serbia: Environmental, Societal and Economic Challenges
... adhesives, and cellulose film coatings (Cadogan and Howick 2012). Sources of phthalates in the environment are direct (production of plastic materials) and indirect emission (leaching and volatilization from plastic products after their usage, disposal, and incineration). Because of that, urban and industrial ...
... raw materials of Serbia are clasified as: 1) Mineralraw materials of primary economic significance: copper, gold, lead-zinc and silver, magnesite, minerals for cement industry, ceramic and refractory clays, aggregate rocks, bentonite, limestone and dolomite as chemical rocks, marble and other ...
... preservation and sustainable management of environmental capacities, particularly by reduced utilization of raw materials and energy and prevention or reduction of environmental pollution via economic instruments and other measures, by the best available techniques, facilities and equipment which ...Vladimir Simić, Rade Jelenković, Dragana Životić. "Mineral Resources of Serbia: Environmental, Societal and Economic Challenges" in Serbia: Current Issues and Challenges in the Areas of Natural Resources, Agriculture and Environment,, Nova Science Publishers, Inc. (2019)
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Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics
Agate veins and nodules occur in the Lece Volcanic Complex (Oligocene-Miocene) situated in the south of Serbia and occupying an area of 700 km2. This volcanic complex is composed predominantly of andesites, with sporadic occurrences of andesite-basalts, dacites and latites, and features agate formations that have been very little investigated. This study focuses on five selected agate occurrences within the Lece Volcanic Complex, employing optical microscopy, scanning electron microscopy (SEM), X-ray powder diffraction analysis, inductively coupled plasma mass spectrometry ...Zoran Miladinović, Vladimir Simić, Nenad Nikolić, Nataša Jović Orsini, Milena Rosić. "Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics" in Minerals, MDPI AG (2024). https://doi.org/10.3390/min14050511
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An Approach to Management Decision Support: The Coal Mine Pljevlja Management Information System
In this paper we describe the approach that has been used in the development of the Management Information System (MIS) in the Coal Mine Pljevlja in Montenegro. The methodology of this approach was based on new information technologies and management techniques which have already been successfully applied in other related fields. Its main goal was to introduce modern management techniques to mining, adapted to specific features of the mining industry, its operations and environment, thus enabling the tactical management ...... troubleshooting, required workforce per norm, all spare parts, materials and drawings necessary to carry out the works, as shown in Figure 4. Figure 3. Recording of production data This program system is used for issuing and monitoring of realization of internal orders for procurement of ...
... of necessary equipment or spare parts, requisitions of materials and spare parts from the warehouse, orders to the Commercial Department concerning services of third parties, orders for obtaining drawings of technical documentation, orders for prospective drawing up of projects required, orders for ...
... with parameters for report generation and the preview of the report. Reporting and reviews on maintenance enable insight into operative readiness and circumstances and condition of production and other equipment, performed maintenance works, maintenance costs and other reviews based on available data ...Božo Kolonja, Ranka Stanković, Filip Vuković, Ivan Obradović. "An Approach to Management Decision Support: The Coal Mine Pljevlja Management Information System" in Proceedings of the Fifteenth International Symposium on Mine Planning and Equipment Selection, Torino, Italy, September 2006, Vol. 1,, Balkema (2006)