Претрага
598 items
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Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria
The choice of adequate mining machines is one of the most complex problems in the underground exploitation of mineral raw materials. The weight of such a decision is reflected in the high prices of these machines and the occurrence of even greater costs during their use if their choice was wrongly conceived. There are numerous examples from practice in which such decisions were made solely on the basis of comparing the prices of machines, without considering any of the ...utovarno-transportna mehanizacija, izbor, TOPSIS, entropija, standardna devijacija, težina kriterijumaVladimir Krivošić, Luka Crnogorac, Rade Tokalić. "Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria" in Underground mining engineering, University of Belgrade - Faculty of Mining and Geology (2024)
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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... ) pH -v re dn os t M a k r o k o m p o n e n t e M i k r o k o m p o n e n t e U ku pn a tv rd oć a (0 dH ) M in er al iz ac ij a M ( g/ l) T ip v od a po A le ki nu K a t j o n i (mg/l) A n j o n i (mg/l) Fe Mn Ni Cu F Sr Na+K Ca Mg Cl HCO3 SO4 (mg/l) ...
... Ca40 (Na+K)16 Bušotina s. Poeševo SO 4 59 HCO 3 27 Cl14 (Na+K)52 Mg29 Ca19 Bušotina s. Kremenica HCO 3 95 Ca47 Mg36 (Na+K)16 Bušotina s. Germijan HCO 3 78 Cl20 (Na+K)72 Mg22 Ca6 Bušotina s. Egri HCO 3 71 SO 4 27 Mg71 Ca18 (Na+K)11 Bunar s. Ribarci HCO 3 77 Cl16 SO 4 7 (Na+K)43 Ca36 ...
... Makovo HCO 3 74 SO 4 17 Cl9 Mg58 Ca24 (Na+K)17 s. Rapeţ HCO 3 73 Cl26 (Na+K)42 Mg36 Ca22 s. Suvodol HCO 3 65 Cl28 SO 4 7 Mg57 Ca26 (Na+K)17 Suvodolska reka HCO 3 83 Cl20 SO 4 7 Mg48 Ca26 (Na+K)26 s. Germijan HCO 3 77,7 SO 4 15,5 Cl6,8 Mg43,8 Ca43 (Na+K)13,2 Izuzetak predstavljaju vode sa ...Kostadin J. Jovanov. "Hidrogeoekološki aspekti aksploatacije uglja u Pelagonijskom basenu (Makedonija)" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-06-24)
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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... O — 150 K 160K 170K 180K 17 10% 10 107 O 10 105 7 10 10 105 200 K f[Hz] f[Hz] 210 K 220K 402 BaTiO /ZnFe,O, 1150 *C ' BaTiO,ZnFe,O, 1300 *C 230 K 240 K 3 _ 250K i Tu —— 260 K 00 F - 270 K b 104 - 280K 10% — 40% __= >=— šzg& 10 40* 310K 10 O 10. 10 107 10 10 105 320 K f[Hz] ...
... samples and its temperature he classical Jonsher relationship [78]. 150 K 160K 170K 180 190K 200K 210K 220K 230K 240K 250 K 260K 270K 280K 290K 300K 310K 320K 330K 340K 350 K 360K 370K 380K 390 K 400K BaTiOJNiFe,O, 1150 *C 107 10 10 10. 107 1. 10 105 f[Hz] f[Hz] ...
... system model 22 mounted on the cold head was applied to a lower temperature to 150 K. Lakeshore 340 temperature controller with hater attached at the cold head was used to gradual heating; rate of 2.5 K/min up to 400 K. Ferroelectric and leakage current measurements were conducted in the electrical ...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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Organoselenium functionalized oxacycles as ligands in some trans-palladium(II) complexes: biological evaluation and interaction with small biomolecules
I. Raković, D. Ćoćić, O. Milošević-Djordjević, I. Radojević, M. N. Živanović, K. Virijević, J. Pavić, J. Tubić Vukajlović, A. Marković, J. S. Marjanović, M. D. Kostić, P. Čanović, A. Mijatović, V. M. Divac (2023)In this article, the biological evaluation and interaction of three selenium-based trans-palladium complexes (Pd–Se1, Pd–Se2, and Pd–Se3) with small biomolecules were performed. The UV–Vis kinetic studies on substitution reaction of synthesized complexes with selected biologically important N- and S-bonding ligands (LCys, GSH, L-Met, 50-GMP, L-His) has emphasized greater affinity of sulphur-based ligands for complex-binding, while the general order of the reactivity was L-Cys > GSH > L-Met > 50-GMP > L-His. The complex reactivity toward small biomolecules is influenced ...I. Raković, D. Ćoćić, O. Milošević-Djordjević, I. Radojević, M. N. Živanović, K. Virijević, J. Pavić, J. Tubić Vukajlović, A. Marković, J. S. Marjanović, M. D. Kostić, P. Čanović, A. Mijatović, V. M. Divac. "Organoselenium functionalized oxacycles as ligands in some trans-palladium(II) complexes: biological evaluation and interaction with small biomolecules" in Journal of Coordination Chemistry, Informa UK Limited (2023). https://doi.org/10.1080/00958972.2023.2256934
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Polymorphism and photoluminescence properties of K3ErSi2O7
alkalni silikati elemenata retkih zemalja, silikati lantanoida, polimorfizam, fotoluminescencija, kristalna strukturaPredrag Dabić, Marko G. Nikolić, Sabina Kovač, Aleksandar Kremenović. "Polymorphism and photoluminescence properties of K3ErSi2O7" in Acta Crystallographica Section C Structural Chemistry, International Union of Crystallography (IUCr) (2019). https://doi.org/10.1107/S2053229619011926
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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 ...... al y si s (K ir sc h v in k 1 9 8 0 ). K ey : L at . N an d L o n . E : g eo g ra p h ic co o rd in at es (W G S 8 4 ), n /n o : n u m b er o f u se d /c o ll ec te d sa m p le s; D , I (D c , I c ): d ec li n at io n , in cl in at io n b ef o re (a ft er ) ti lt co rr ec ti o n ; k an d a 9 5 ...
... Z., & Šarić, K. (2013). Cenozoic igneous tectonomagmatic events in the Serbian part of the Balkan Peninsula: inferences from K/Ar geochronoligy. Geologia Acta Vulcanologica, 25, 111–120. Cvetković, V., Poli, G., Christofides, G., Koroneos, A., Pécskay, Z., Resimić-Šarić, K., et al. (2007) ...
... W id er R u d n ik M ts . ar ea , C re ta ce o u s se d im en ts L o ca li ty L at . N L o n . E L it h o lo g y n /n o D � I� k a 9 5 � D c � I c � k a 9 5 � d ip A g e 1 S tr u g an ik u p p er q u ar ry 4 2 4 1 – 2 6 2 4 4 � 1 1 0 1 3 00 2 0 � 0 6 0 5 3 00 L im es to n es w ...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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Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeFen Huang, Ljiljana Vasic, Xia Wu, Jianhua Cao, Saša Milanovic. "Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia" in Environmental Earth Sciences, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s12665-019-8452-4
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Occurrence of Sn-bearing colusite in the ore-body ’’T’’ of the Bor copper deposit, Serbia
Cvetković Ljubomir, Pačevski Aleksandar, Tončić Trajče. "Occurrence of Sn-bearing colusite in the ore-body ’’T’’ of the Bor copper deposit, Serbia" in Geology of Ore Deposits 55, Moscow:M A I K Nauka - Interperiodica (2013): 298-304
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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 ...... 625 x 10°’ M lowered the K,, value of phospholipase A> to 50% of the starting value and when the concentration of the complex was 100-fold higher, the K,, value was lowered to about 10% of the initial value (Fig. 3A). When [PtCl,(bipy)] was added at the same concentrations K,, was lowered to about 60% ...
... Schiller, R. Süb, B. Fuchs, M. Müller, O. Zschörnig and K. Arnold, Front. Biosci., 2007, 12, 2568–2579. 39 R. A. Steiner, H. J. Rozeboom, A. de Vries, K. H. Kalk, G. N.Murshudov, K. S.Wilson and B.W. Dijkstra,Acta Crystallogr., Sect. D: Biol. Crystallogr., 2001, 57, 516–526. 40 T. Cunningham, L. ...
... Hsu and J. Turk, Lipids, 2001, 36, 689–700. 53 T. Avoranta, J. Sundström, E. Korkeila, K. Syrjänen, S. Pyrhönen and J. Laine, Virchows Arch., 2010, 457, 659–667. 54 Z. Dong, Y. Liu, K. F. Scott, L. Levin, K. Gaitonde, R. B. Bracken, B. Burke, Q. J. Zhai, J. Wang, L. Oleksowicz and S. Lu, Carcinogenesis ...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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Tehnologije transporta uglja iz rudnika kroz prirodne i urbane sredine
Grujić Miloš, Ristović Ivica, Grujić Miodrag. "Tehnologije transporta uglja iz rudnika kroz prirodne i urbane sredine" in Monografija: Istraživanje tehnologija transporta uglja iz rudnika kroz prirodne i urbane sredine, Beorgad, Srbija:Univerzitet u Beogradu, Rudarsko-geološki fakultet (2010): 1-59
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Framework for biomass project selection at local level — the case study
Ivezić Dejan, Gluščević Miodrag, Ivić Milica. "Framework for biomass project selection at local level — the case study" in 4th International Symposium on Environmental Friendly Energies and Applications (EFEA), Beograd:IEEE (2016). https://doi.org/10.1109/EFEA.2016.7748801
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Possibilities for introduction of Bioenergy Village concept - a case study of Serbia
Ivezic Dejan, Gluščević Miodrag, Jerotić Slobodan. "Possibilities for introduction of Bioenergy Village concept - a case study of Serbia" in Proceedings of the 3rd Renewable Energy Sources - Research and Business - BOOK OF ABSTRACTS, Brisel:Wojciech Budzianowski Consulting Services (2018): 53-54
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Application of multi-criteria decision-making model for choice of the optimal solution for meeting heat demand in the centralized supply system in Belgrade
Grujić Miodrag, Ivezić Dejan, Živković Marija. "Application of multi-criteria decision-making model for choice of the optimal solution for meeting heat demand in the centralized supply system in Belgrade" in Energy 67, Amsterdam:Elsevier (2014): 341-350. https://doi.org/10.1080/15567240903330434
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Model for the Selection of the Optimal Location of a Thermal Power Unit According to the External Coal Conveyance Criterion
Grujić Miloš, Ristović Ivica, Grujić Miodrag. "Model for the Selection of the Optimal Location of a Thermal Power Unit According to the External Coal Conveyance Criterion" in Acta Montanistica Slovaca no. 15, Kosice, Slovakia:TU Kosice, Slovakia (2010): 31-33
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Optimizacija sistema transporta jalovine na površinskom kopu Buvač
Malbašić Vladimir, Stevanović Dejan, Čelebić Miodrag. "Optimizacija sistema transporta jalovine na površinskom kopu Buvač" in Tehnika no. 4, Beograd:Savez inženjera i tehničara Srbije (2012): 545-552
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Business Models for Small-scale Biomass Projects Development
Biomass is recognized as the most promising renewable energy source in Serbia. The share of biomass in Serbian final energy consumption is over 10%, but mostly related to traditional use in stoves and ovens. One of the main obstacles for wider implementation of contemporary biomass facilities is the inexperience of consumers and stakeholders in the implementation of “innovative” business models, especially in the cases of small-scale projects. In this paper, three different business models (public utility company, energy cooperative ...... Business Models for Small-scale Biomass Projects Development Dejan Ivezić1, Miodrag Gluščević2, Marija Živković1 1University of Belgrade – Faculty of Mining and Geology 2Standing Conference of Towns and Municipalities, Belgrade Abstract: Biomass is recognized as the most promising ...Dejan Ivezić, Miodrag Gluščević, Marija Živković. "Business Models for Small-scale Biomass Projects Development" in 19th International Conference on Thermal Science and Engineering of Serbia, Niš : Faculty of Mechanical Engineering (2019)
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The Galena Flotation in Function of Grindability
Cvetićanin Lidija, Lazić Predrag, Vučinić Dušica, Knežević Dinko. "The Galena Flotation in Function of Grindability" in Journal of Mining Science 48 no. 4, Moscow, Russian Federation:M A I K Nauka - Interperiodica (2012): 760-764. https://doi.org/10.1134/S1062739148040223
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The interaction of organoselenium trans-palladium(II) complexes toward small-biomolecules and CT-DNA
Serija organoselenijum trans-paladijum(II) kompleksa 1 (bis(2-(fenilselanilmetil)oksolan)dihloropaladijum(II)), 2 (bis(2-(fenilselanilmetil)oksan)dihloropaladijum(II)) i 3 (bis(2) ,2-dimetil-3-(fenilselanil)oksan)dihloropaladijum(II)) su korišćeni za ispitivanje reaktivnosti ovog specifičnog tipa kompleksa prema različitim bio-molekulima. Ovaj sistem je od posebnog interesa jer se jako malo zna o supstitucionim reakcijam organoselenijum paladijum(II) kompleksa sa trans konfiguracijom. Zamena koordinovanog hlorida sa serijom malih bio-molekula (l-Met, l-His, l-Cis, GSH i 5′-GMP) proučavana je pod uslovima pseudo-prvog reda kao funkcija koncentracije nukleofila i temperature korišćenjem tehnika zaustavljenog toka. Rezultati za proučavane komplekse ukazuju da ...Vera M. Divac, Aleksandar Mijatović, Marina D. Kostić, Jovana Bogojeski. "The interaction of organoselenium trans-palladium(II) complexes toward small-biomolecules and CT-DNA" in Inorganica Chimica Acta, Elsevier BV (2017). https://doi.org/10.1016/j.ica.2017.07.012
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Smanjenje sleganja plitkih temelja primenom mikrošipova
Slobodan Ćorić, Dragoslav Rakić (2021)Mikrošipovi su šipovi malog prečnika koji se grade tako što se u tlu specijalni postupkom formira bušotina koja se zatim armira i injektira. Njihov prečnik je najčešće 150 – 300 mm, a dužina može da bude i više desetina metara. Mikrošipovi mogu da se grade u svim vrstama tla i mogu da budu vertikalni i kosi. Oni se, stoga, koriste kao zamena za konvencionalne šipove i ankere. Primena mikrošipova u fundiranju predstavlja jedan savremeni način izgradnje i sanacije temelja/objekata. ...Slobodan Ćorić, Dragoslav Rakić. "Smanjenje sleganja plitkih temelja primenom mikrošipova" in Zbornik radova međunarodno naučno-stručnog savetovanja Zemljotresno inženjerstvo i geotehnički aspekti građevinarstva, Vrnjačka banja, 3-5. novembar 2021., Beograd : Savez građevinskih inženjera Srbije (2021)
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Orogenic magmatism during continental collision: A numerical modelling approach
Nevena Andrić, Katharina Vogt, Liviu Matenco, Vladica Cvetković, Sierd Cloetingh, Taras Gerya (2017)Nevena Andrić, Katharina Vogt, Liviu Matenco, Vladica Cvetković, Sierd Cloetingh, Taras Gerya. "Orogenic magmatism during continental collision: A numerical modelling approach" in Émile Argand Conference - 13th Workshop on Alpine Geological Studies - September 7th-18th 2017 in Serbia, Zlatibor Mts., Beograd:University of Belgrade - Faculty of Mining and Geology (2017): 11-11