Претрага
2416 items
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DFT study of free radical scavenging activity of erodiol
Zoran Marković, Jelena Đorović, Milan Dekić, Milanka Radulović, Svetlana Marković, Marija Ilić (2013)Antioxidant activity of erodiol was examined at the M05-2X/6-311+G(d,p) level of theory in the gas and aqueous phases. The structure and energy of radicals and anions of the most stable erodiol rotamer were analyzed. To estimate antioxidant potential of erodiol, different molecular properties were examined: bond dissociation enthalpy, proton affinity together with electron transfer energy, and ionization potential followed by proton dissociation enthalpy. It was found that hydrogen atom transfer is the prevailing mechanism of erodiol behavior in gas; ...Zoran Marković, Jelena Đorović, Milan Dekić, Milanka Radulović, Svetlana Marković, Marija Ilić. "DFT study of free radical scavenging activity of erodiol" in Chemical Papers, Springer Science and Business Media LLC (2013). https://doi.org/10.2478/s11696-013-0402-0
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Age and microfacies of oceanic Upper Triassic radiolarite components from the Middle Jurassic ophiolitic mélange in the Zlatibor Mountains (Inner Dinarides, Serbia) and their provenance
Hans-Juergen Gawlick, Nevenka Đerić, Sigrid Missoni, Nikita Bragin, Milan Sudar, Divna Jovanović (2017)Neo-Tethys, trench-like basins, synorogenic deposition, evolving thrust belt, Triassic palaeogeography... yielded determinable and moderately preserved radiolarian assemblages. Results Lithology and microfacies Apart from the biostratigraphic age, microfacies analysis of both radiolarites and limestones provides information about their depositional setting (e.g., relative water depth, transport ...
... about the palaeo- geography in Triassic-Jurassic times in the western Tethyan realm (e.g., Stampfli & Kozur 2006; Schmid et al. 2008; Missoni & Gawlick 2011b; Robertson 2012; Gawlick et al. 2016a,b), there is progress in the reconstruction of the age of lost oceanic domains and in the understanding ...
... suppor- ted by Ministry of Education, Science and Technological Development of the Republic of Serbia, Project ON-176015 (NDJ, MS, DJ). The cooperation Leoben-Belgrade was sup- ported by the CEEPUS Network CIII-RO-0038 Earth-Science Studies in Central and South-Eastern Europe. The research work ...Hans-Juergen Gawlick, Nevenka Đerić, Sigrid Missoni, Nikita Bragin, Milan Sudar, Divna Jovanović. "Age and microfacies of oceanic Upper Triassic radiolarite components from the Middle Jurassic ophiolitic mélange in the Zlatibor Mountains (Inner Dinarides, Serbia) and their provenance" in Geologica Carpathica (2017)
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Sustainable environmental development after the cessation of mining activities at the cathode copper production complex Kazandol-Valandovo, R. Makedonija
Бошевски Трајче, Јовановић Бранка, Праштало Жељко, Радосављевић Милинко, Чановић Владан, Чолаковић Виолета, Димитријевић Бојан (2017)Бошевски Трајче, Јовановић Бранка, Праштало Жељко, Радосављевић Милинко, Чановић Владан, Чолаковић Виолета, Димитријевић Бојан. "Sustainable environmental development after the cessation of mining activities at the cathode copper production complex Kazandol-Valandovo, R. Makedonija" in International Symposium Mining and Geology today, Београд, Србија: Mining Institute Belgrade Ltd., Balkan Academy of Mining Science and Academy of Engineering Sciences Serbia, (2017): 261-266. https://doi.org/10.25075/Sl.2017.25
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Development of the Cost-Based Model for Monitoring the Lifetime of the Earth Moving Machines
This paper presents the model for the identification of reference points on the lifetime curve of engineering systems. This curve commonly represents the increase and decline of failure in relation to time. A direct correlation between failure rate and costs is assumed in this paper, therefore, statistical and empirical analysis of costs provided reference points. This approach is used for positioning stages of the engineering system’s lifetime with a minimal number of failures and costs, regardless of whether these ...Electrical and Electronic Engineering,Industrial and Manufacturing Engineering, Control and Optimization, Mechanical Engineering, Computer Science (miscellaneous), Control and Systems EngineeringUgljesa Bugarić, Milos Tanasijević, Stevan Djenadić, Dragan Ignjatović, Ivan Janković. "Development of the Cost-Based Model for Monitoring the Lifetime of the Earth Moving Machines" in Machines, MDPI AG (2022). https://doi.org/10.3390/machines10110995
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Texture and composition of ferrian ilmenite from hornblende andesites of the Timok Magmatic Complex, Serbia
Aleksandar Luković, Predrag Vulić, Janez Zavašnik, Vladica Cvetković, Kristina Šarić, Miodrag Banješević, Marina Lazarov, Aleksandar Pačevski (2021)hematit, ilmenit, hemoilmenit, ilmenohematit, čvrsti rastvor, tekstura, eksolucija, andezit, bakar porfiri, timocit, Krivelj, NikoličevoAleksandar Luković, Predrag Vulić, Janez Zavašnik, Vladica Cvetković, Kristina Šarić, Miodrag Banješević, Marina Lazarov, Aleksandar Pačevski. "Texture and composition of ferrian ilmenite from hornblende andesites of the Timok Magmatic Complex, Serbia" in Neues Jahrbuch für Mineralogie - Abhandlungen (Journal of Mineralogy and Geochemistry), Schweizerbart Science Publishers, Stuttgart, Germany (2021)
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Microemulsion with aromatic oil as cleaner media for electropolymerisation
Abstract Microemulsion polymerization is widely used as a cleaner alternative way to prepare intrinsically conductive polymers. We studied isothermal phase diagrams for microemulsions of the electropolymerizable heterocyclic aromatic oil 3,4-ethylenedioxythiophene (EDOT), aqueous LiClO4 solution and alkyl polyethoxylate. Our specific goal was to assess the effect of LiClO4 salt on the phase behaviour. The phase behaviour was characterized by stepwise titration and microscopic analyses. Here we found that the increase of the concentration of LiClO4 salt shifts the microemulsion region ...M. Ilić, F.-H. Haegel, S. Zlatanovic, N. Potkonjak, B. Simonovic. "Microemulsion with aromatic oil as cleaner media for electropolymerisation" in Environmental Chemistry Letters, Springer Science and Business Media LLC (2005). https://doi.org/10.1007/s10311-005-0101-3
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A hydrogeological model of the open-cast mine Tamnava - West Field (Kolubara Coal Basin, Serbia)
... the aquatic environment of the Maczki-Bór sand pit due to the fact of planned closure of mining operations (NE part of Upper Silesian Coal Basin - Poland). In: RÜDE R. T., FREUND A. and WOLKERSDORFER, CH. (eds.) Proceedings of the 11th International Mine Water Association Congress: Mine Water - Managing ...
... field explorations and an assessment of the lithologic members and their hydrogeologic functions, a total of eight layers were identified along the vertical, four of which were water-bearing layers: upper aquifer (Layer 2), intermediate aquifer (Layer 5) and lower aquifer (Layers 7 and 8). The real geometry ...
... Quaternary sands and heterogeneous dumped material in the northern part of the study area 2nd water- bearing / Sands and gravels of the upper aquifer isolating layer and heterogeneous dumped material in the northern part of the study area 3rd isolating layer Silt and heterogeneous dumped ...Jelena Ratković, Dušan Polomčić, Dragoljub Bajić, Bojan Hajdin. "A hydrogeological model of the open-cast mine Tamnava - West Field (Kolubara Coal Basin, Serbia)" in Underground Mining Engineering no. 29, Belgrade : University of Belgrade - Faculty of mining and geology (2016): 43-54
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Основи геологије
Урош Стојадиновић (2024)Урош Стојадиновић. Основи геологије, Београд : Универзитет у Београду - Рударско-геолошки факултет, 2024
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The external aggregation Newton's method for solving nonlinear equations and applications
Marija Paunović, Dejan Ćebić, Nebojša Ralević. "The external aggregation Newton's method for solving nonlinear equations and applications" in The University Thought - Publication in Natural Sciences, Centre for Evaluation in Education and Science (CEON/CEES) (2020). https://doi.org/10.5937/univtho10-24982
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Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases
The infuences of the application of mono- and two-component organic modifers on lipophilicity determination of 12 tetradentate Schif bases by reversed-phase thin layer chromatography were investigated. The main goal is to estimate types of interaction between observed compounds and components of the applied chromatographic systems and establish some behaviour pattern in order to easier choose a combination of organic modifers which will simulate interaction in biological systems based on the facts that the same basic intermolecular interactions are responsible ...Materials Chemistry, Industrial and Manufacturing Engineering, General Chemical Engineering, Biochemistry,General ChemistryNikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić. "Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases" in Chemical Papers, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s11696-021-01884-5
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Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases
The infuences of the application of mono- and two-component organic modifers on lipophilicity determination of 12 tet radentate Schif bases by reversed-phase thin layer chromatography were investigated. The main goal is to estimate types of interaction between observed compounds and components of the applied chromatographic systems and establish some behaviour pattern in order to easier choose a combination of organic modifers which will simulate interaction in biological systems based on the facts that the same basic intermolecular interactions are ...Materials Chemistry, Industrial and Manufacturing Engineering, General Chemical Engineering, Biochemistry, General ChemistryNikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić. "Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases" in Chemical Papers, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s11696-021-01884-5
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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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English for Geology Students. 1
Lidija Beko (2023)... resulted in an increased ability to test and prove hypotheses, and also 12 Meteorite created new ways of studying the interactions of terrestrial cycles and systems on a truly global scale, leading to a new field of research known as Earth system science. As well as looking back towards Earth ...
... study of the Earth in the 18th century. Earth science began to investigate the air we breathe and the waters that surround our continents; the land itself, the rocks, min- erals, soils, the geographical features such as mountain ranges and deserts; the living creatures with which we share ...
... allowed to flood when mining operations cease and so the crystals may once again begin to grow! ___ Using the web pages below, and any others you can find, write a description of how selenite crystals form. https://www.nationalgeographic.com/science/article/! Photos-mexico-cave-of-crystals https://en ...Lidija Beko. English for Geology Students. 1, Belgrade : The Faculty of Mining and Geology, 2023
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Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise
Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Mladen R. Nedimović, Juan Pablo Canales, Hélène D. Carton, John C. Mutter, Javier Escartín (2023)Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Mladen R. Nedimović, Juan Pablo Canales, Hélène D. Carton, John C. Mutter, Javier Escartín. "Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise" in Science Advances, American Association for the Advancement of Science (AAAS) (2023). https://doi.org/10.1126/sciadv.adi2698
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Estimating hydraulic parameters for the complex hydrodynamic models
Hydrodynamic models have usually been calibrated manually, by trial-and-error, with different values of hydraulic parameters and hydraulic characteristics of boundary conditions. This method of calibration and estimation of hydraulic parameters requires an extensive knowledge and experience of experts, but whether the resulting solution includes an optimal set of parameters still remains an open question. An optimization method founded upon the Gauss-Marquardt-Levenberg algorithm, along with PEST software based on that algorithm, introduces automation of model calibration with regularization, which substantially ...Dušan Polomčić, Dragoljub Bajić, Jelena Ratković, Bojan Hajdin. "Estimating hydraulic parameters for the complex hydrodynamic models" in Mining and Metallurgy Engineering Bor, Centre for Evaluation in Education and Science (CEON/CEES) (2018). https://doi.org/10.5937/mmeb1704029P
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Transformer-Based Composite Language Models for Text Evaluation and Classification
Parallel natural language processing systems were previously successfully tested on the tasks of part-of-speech tagging and authorship attribution through mini-language modeling, for which they achieved significantly better results than independent methods in the cases of seven European languages. The aim of this paper is to present the advantages of using composite language models in the processing and evaluation of texts written in arbitrary highly inflective and morphology-rich natural language, particularly Serbian. A perplexity-based dataset, the main asset for the ...Mihailo Škorić, Miloš Utvić, Ranka Stanković. "Transformer-Based Composite Language Models for Text Evaluation and Classification" in Mathematics, MDPI AG (2023). https://doi.org/10.3390/math11224660
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Human Hemoglobin and Antipsychotics Clozapine, Ziprasidone and Sertindole: Friends or Foes?
Lena Platanić Arizanović, Nikola Gligorijević, Ilija Cvijetić, Aleksandar Mijatović, Maja Krstić Ristivojević, Simeon Minić, Aleksandra Nikolić Kokić, Čedo Miljević, Milan Nikolić (2023)Packed with hemoglobin, an essential protein for oxygen transport, human erythrocytes are a suitable model system for testing the pleiotropic effects of lipophilic drugs. Our study investi gated the interaction between antipsychotic drugs clozapine, ziprasidone, sertindole, and human hemoglobin under simulated physiological conditions. Analysis of protein fluorescence quenching at different temperatures and data obtained from the van’t Hoff diagram and molecular docking indicate that the interactions are static and that the tetrameric human hemoglobin has one binding site for ...Inorganic Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, Computer Science Applications, Spectroscopy, Molecular Biology, General Medicine, CatalysisLena Platanić Arizanović, Nikola Gligorijević, Ilija Cvijetić, Aleksandar Mijatović, Maja Krstić Ristivojević, Simeon Minić, Aleksandra Nikolić Kokić, Čedo Miljević, Milan Nikolić. "Human Hemoglobin and Antipsychotics Clozapine, Ziprasidone and Sertindole: Friends or Foes?" in International Journal of Molecular Sciences, MDPI AG (2023). https://doi.org/10.3390/ijms24108921
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Overview of brown coal reserves in Banovići basin in accordance with PERC reporting standard
Damir Baraković, Kasim Modrić, Vladimir Simić. "Overview of brown coal reserves in Banovići basin in accordance with PERC reporting standard" in Tehnika, Centre for Evaluation in Education and Science (CEON/CEES) (2021). https://doi.org/10.5937/tehnika2102157B
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Thermal evolution of cation distribution/crystallite size and their correlation with the magnetic state of Yb-substituted zinc ferrite nanoparticles
Vučinić-Vasić Milica, Bozin Emil S., Bessais Lotfi, Stojanović Goran, Kozmidis-Luburić Uranija, Abeykoon Milinda, Jancar Bostjan, Meden Anton, Kremenović Aleksandar, Antić Bratislav (2013)Vučinić-Vasić Milica, Bozin Emil S., Bessais Lotfi, Stojanović Goran, Kozmidis-Luburić Uranija, Abeykoon Milinda, Jancar Bostjan, Meden Anton, Kremenović Aleksandar, Antić Bratislav. "Thermal evolution of cation distribution/crystallite size and their correlation with the magnetic state of Yb-substituted zinc ferrite nanoparticles" in Journal of Physical Chemistry C 23 no. 117, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA:American Chemical Society (2013): 12358-12365. https://doi.org/10.1021/jp403459t
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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