Претрага
2756 items
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Some models for determination of parameters of the soil oscillation law during blasting operations
... velocities of the rock mass v depending on the reduced distance R. In order to assess the degree of connection between v and R, we have used the curved line dependency index ρ [9]. The evaluation of the relationship degree of two variables [5] to values of the curved line dependency index ρ is given ...
... Equation of Rock Mass Oscillation—First Mode The equation of Sadovskii has been derived from the condition that if the radius of charge and the distance from the blast site to the monitoring point increase in the same, or approximately the same ratio, the soil oscillation velocity remains the same [3], i.e ...
... 10 of 15 Based on the data in Table 2, a statistical analysis was carried out and the following values were obtained: ‚ For model 1: The curved line dependency index ρ1 between the reduced distance R and soil oscillation velocity v is: ρ1 = 0.9880 (there is a strong correlation between R and v, given ...Suzana Lutovac, Dragan Medenica, Branko Gluščević, Rade Tokalić, Čedomir Beljić. "Some models for determination of parameters of the soil oscillation law during blasting operations" in Energies, Basel, Switzerland : MDPI (2018). https://doi.org/10.3390/en9080617
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Prognozna ocena resursa kaolinitskih glina u sedimentnim basenima Srbije
Vladimir M. Simić (2003)Kaolinitske gline predstavljaju jednu od privredno najznačajnijih nemetaličnih mineralnih sirovina u Srbiji. Ležišta tih glina odavno se istražuju i eksploatišu u Aranđelovačkom i Kolubarskom basenu i basenima vlašićkog antiklinorijuma. Osim toga, u većem ili manjem obimu istražene su mnoge lokalnosti, a na nekima od njih vršila se povremena eksploatacija. Dosadašnja istraživanja kaolinitskih glina imala su, međutim, prevashodno uzak istraživački cilj - utvrđivanje rezervi glina određenog ležišta, dok su istraživanja regionalnog karaktera bila malog obima i vezana za delove pojedinih ...prognozna ocena, resursi kaolinitskih glina, sedimentni baseni, Srbija, geologija, mineralogija, kvalitet, potencijalnostVladimir M. Simić. Prognozna ocena resursa kaolinitskih glina u sedimentnim basenima Srbije, Beograd : V. Simić, 2003
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Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia
This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern ...... & Odelius H. 1998: Secondary ion mass spectrometry analysis of rare earth elements in grandite garnet and other skarn related silicates. European Journal of Mineralogy 10, 251–259. https://doi.org/10.1127/ejm/10/2/0251 Pamić J. & Šparica M. 1983: The age of the volcanic of Požeška Gora (Croatia ...
... stage and andradite-rich phase growth, which has been initiated by boiling process, the fluid composition was extremely controlled by the oxidation state, W/R ratio and salinity of solution; • Garnets from Rudnik skarns widely range in composition whereas the garnets near the end-member of andradite ...
... et al. Fig. 1. a — Simplified geological map of Rudnik area modified according to the Basic geological Map 1:100,000, Sheets Kragujevac (Brković et al. 1980) and Gornji Milanovac (Filipović et al. 1978); b — Exact position of investigated area within Serbia. 19ANISOTROPIC GROSSULAR–ANDRADITE GARNETS ...Bojan Kostić, Danica Srećković-Batoćanin, Petyo Filipov, Pavle Tančić, Kristijan Sokol. "Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2021). https://doi.org/10.31577/GeolCarp.72.1.2
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Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit
... also used in order to evaluate the degree of connection between values of obtained parameters n and K for models 1 — 5. Besides, in order to evaluate the degree of connection between the reduced distances R and oscillation velocities V we used index of the curved dependency o [7]. In order to ...
... The equation of Sadovskii was derived from the condition: if the radius of charge , and distance from the blasting site to the monitoring point r increase in the same or approximately the same ratio, the rock mass oscillation velocity V remains the same [6]. Here we cite second way of rock mass ...
... statistical analysis has been done and following values have been obtained. The curved line dependency index QO between the reduced distance R and rock mass oscillation velocity Y : 202 • muodell: ,= 0.9843 for total of 12 data (there is a strong correlation between R and y , given in the Equation (11)) ...Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac. "Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit" in 9th International Conference Mining and Environmental protection MEP, 24 – 27 May 2023, Sokobanja, Serbia, Belgrade : University of Belgrade-Faculty of mining and geology (2023)
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Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)
... (2006) The geological development of the Balkan Pen- insula related to the approach, collision and compression of Gondwanan and Eurasian units. Geol Soc Spl Publ 260:155— 178. doi:10.1144/GSL.SP.2006.260.01.07 Karamata S, Krstić B (1996) Terranes of Serbia and neighbouring, areas. In: Knežev ...
... External foredeep B Tisza mega-unit BII suture of Ceahlžu-Severin Ocean Fig.1 Tectonic map of the Balkan Peninsula (modified after Schmid et al. 2008; van Hinsbergen and Schmid 2012). B/ue polygon outlines the area of the map in Fig. 2, and the red polygon in Fig. 3 Int J Earth Sci (Geol ...
... classifica- tion: end-member boudin types and modified boudin structures. J Struct Geol 26:739—763. doi:10.1016/j.jsg.2003.08.015 Graf J (2001) Alpine tectonics in Western Bulgaria: Cretaceous com- pression of the Kraishte region and Cenozoic exhumation of the crystalline Osogovo—-Lisets Complex ...Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Richard Spikings, Andreas Wetzel. "Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)" in International Journal of Earth Sciences, Springer Science and Business Media LLC (2016). https://doi.org/10.1007/s00531-016-1380-6
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Hydrogeochemical distribution of Ca and Mg in groundwater in Serbia
Petar Papić, Jovana Milosavljević, Marina Ćuk, Rastko Petrović . "Hydrogeochemical distribution of Ca and Mg in groundwater in Serbia" in Groundwater: Occurrence and Significance for Human Health, CRC Press, Balkema - Taylor & Francis Group (2014)
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Structural dissymmetrization of optically anisotropic Grs64±1Adr36±1Sps2 grandite from Meka Presedla (Kopaonik Mt., Serbia)
In this paper, grandite core with Grs64±1Adr36±1Sps2composition was crystallographically studied. This core represents zone A of the macroscopically visiblefive A–E zones of the optically anisotropic Grs58–64 Adr36–42Sps2 grandite. The applied procedure includes the detailed analysis of the powder diffraction patterns, and the Rietveld refinements of the crystal structures in a series of 18 space groups and two mixtures, which were followed by the comparative analysis of the R-values, site occupancy factors, and the bond lengths and angles. Synthesis of all ...Pavle Tančić, Aleksandar Kremenović, Predrag Vulić. "Structural dissymmetrization of optically anisotropic Grs64±1Adr36±1Sps2 grandite from Meka Presedla (Kopaonik Mt., Serbia)" in Powder Diffraction, Cambridge University Press (CUP) (2019). https://doi.org/10.1017/S0885715619000897
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Preparation of Multimedia Document “YU Rock Scene”
SUMMARY: This study will present the preparation process of a multimedia document entitled YU ROCK SCENE in which participants were senior students of undergraduate studies of the Department of Library and Information Science at the University of Belgrade Faculty of Philology during the academic year 2014/2015, as a part of the subject Multimedia Documents. This study gives an overview of the historical development of rock and roll in the territory of the former Yugoslavia, rock scene in Yugoslav republics, ...... mainly from encyclopedias, newspa- per and periodicals libraries and primary and secondary monographic sources. Rest 120 Infotheca Vol. 16, No. 1–2, August 2016 Professional paper of the material – photos, audio tracks and videos were found either in cultural and media institutions (libraries, archives ...
... Macedonia and Montenegro (Aleksandar Pavlović). Rest of the groups researched influence of rock and roll on art, media and social events: gigs and discotheques (Katarina Jugov, Ivana Merdović and Jelena Radić), festivals (Milan Avdulah and Uroš Tošić), books and poetry (Marija Brašanac and Tamara ...
... com University of Belgrade, Faculty of Philology 1 Historical Development of Rock and Roll in the Territory of Former Yugoslavia Rock and roll in the territory of former Yugoslavia is rooted in the 1920s when new instruments, such as saxophone and guitar, began to emerge (Fajfić and Nenad, 2009, pp ...Milena Obradović, Aleksandra Arsenijević, Mihailo Škorić. "Preparation of Multimedia Document “YU Rock Scene”" in Infotheca - Journal for Digital Humanities, Faculty of Philology, University of Belgrade (2017). https://doi.org/10.18485/infotheca.2016.16.1_2.6
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GIS Application Improvement with Multilingual Lexical and Terminological Resources
... Serbian and English wordnets are related by the Inter-Lingual-Index provide for the sharing of GeolISS with the international GIS community. This feature will be further enhanced by upgrading GeolISS on the basis of users’ requests as well as the evolution of geospatial standards and technology ...
... query expands into only 10 combinations of an adjective form and a noun form: kvarcna stena AND kvarcne stene AND kvarcnoj steni AND kvarcnu stenu AND kvarcna steno AND kvarcnom stenom AND kvarcnoj steni AND kvarcnih stena AND kvarcnim stenama AND kvarcnima stenama thus disabling false ...
... professor, 3 researcher University of Belgrade, Faculty of Mining and Geology, Faculty of Mining and Geology E-mail: {ranka, ivano, olja}@rgf.bg.ac.rs Abstract This paper introduces the results of integration of lexical and terminological resources, most of them developed within the Human Language ...Ranka Stanković, Ivan Obradović, Olivera Kitanović. "GIS Application Improvement with Multilingual Lexical and Terminological Resources" in Proceedings of the 5th International Conference on Language Resources and Evaluation, LREC 2010, Valetta, Malta, May 2010, Valetta, Malta : European Language Resources Association (2010)
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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 ...... As an example, we used the model of fuzzy sets and fuzzy logic to determine the risk level of failure of a mobile crushing machine, the “Lokotrack LT 1213S”, which is manufactured by “METSO MINERALS”. The crushing machine is used for the secondary crushing of stone aggregate at the quarry “Ladne ...
... in human and financial resources that could reduce the number of failures or mitigate the negative effects of a failure. Such investment may be useful: the maintenance system can be modified, achieving considerable savings. In spite the fact that proposed model minimizes the influence of subjectivity ...
... “min–max” composition. The proposed model can be used for risk assessments of failures in any machine used in industry and mining. Here, we tested it on the secondary mobile crushing machine “METSO MINERALS”, type “Lokotrack LT 1213S”, which is used in the open pit “Ladne vode”, near Petrovac na Mlavi ...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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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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WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina
Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)... attribute classes, it inherits the abstract class generic_attributes and receives attributes of the primary key, relations to the metadata, comment, and record author classes. The class company comprises contact details of all titleholders in the database, while the class terrain_record models ...
... results of the strategic project „Cadastre of abandoned mines on the territory of the autonomous province of Vojvodina and accompanying database" realized by University of Belgrade, Faculty of Mining and Geology, for the Provincial Secretariat for Energy and Mineral Resources of Vojvodina, and pointed ...
... overview of the use of the application on the basis of log data (logons) and data entry, as well as the number of visits of the site using Google analytics. Statistics of mining facilities and results of remote sensing by property type, by district, municipality, by mineral resource or method of re ...Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis. "WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina" in Proceedings of the 5th International Symposium Mining And Environmental Protection,June 10-13,2015, Vrdnik, Serbia, Belgrade : Faculty of Mining and Geology (2015)
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Минерагенија зеолитских туфова Србије
Vladan Kašić (2018-02-05)Лежишта наших зеолитских туфова (Златокоп, Игрош, Јабланица 1, Беочин, Топоница и Сланци) која су овде била предмет детаљних истраживања, просторно и генетски везана су за вулканске и вулканокластичне стене маринских средина сенонске и неогенске старости и језерске седименте неогене старости и настала су као продукт девитрификације вулканског стакла.Током лабораторијских испитивања при изради ове докторске дисертације, примењене су следеће аналитичке методе: оптичка испитивања петрографских препарата; рендгенска дифракција праха (XRD); скенирајућа електронска микроскопија (СЕМ метода); хемијска карактеризација зеолитских туфова у оквиру ...... Li Z., Bowman R.S., (1998): Sorption of Perchloroethylene by Surfactant-Modified Zeolite as Controlled by Surfactant Loading.Enviromental Science and Technology, 32, 2278-2282. Li Z., Anghel I., Bowman R.S., (1998): Sorption of oxyanions by surfactant-modified zeolite, J. Dispersion Sci. Technol ...
... natural zeolite modified with cetylpyridinium chloride.Colloids and Surfaces B: Biointerfaces 83 (1), 165-172. Krajišnik D., Daković A., Malenović A., Djekić L., Kragović M., Dobričić V., Milić J., (2013): An investigation of diclofenac sodium release from cetylpyridinium chloride-modified natural zeolite ...
... Conf. “Wastewaters, municipal solid vastest and hazardous wastes, Kopaonik, 131-135. Vujaković A., Tomašević-Čanović M., Daković A., Dondur V., (2000): The adsorption of sulphate, hydrogenchromate and dihydrogenphosphate anions on surfactant- modified clinoptilolite, Appl. Clay Sci. 17, 265–277 ...Vladan Kašić. "Минерагенија зеолитских туфова Србије" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-02-05)
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Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays
... necessity of a detailed and complex study of bentonite deposits, and above all a critical analysis and evaluation of both the current exploration methodol- ogy and the achieved results. Table 3. Perspective deposits of bentonite and bentonite clays in Serbia [53]. Size of deposit after [44]. None of these ...
... actual reporting system and CRIRSCO based reporting system, modified after [67]. CRIRSCO Reporting Standard Exploration Results Mineral Resources Mineral Reserves Inferred Indicated Measured Probable Proven Serbian ex- isting re- porting sys- tem Reserves of solid mineral raw materials ...
... nt. Resources of bentonite and bentonitic clays of tens of millions of tonnes have been calculated (according to the Serbian standard 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 ...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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Resource-based WordNet Augmentation and Enrichment
In this paper we present an approach to support production of synsets for SerbianWordNet(SerWN)byadjustingPrincetonWordNet(PWN)synsetsusing several bilingual English-Serbian resources. PWN synset definitions were automatically translated and post-edited, if needed, while candidate literals for Serbian synsets were obtained automatically from a list of translational equivalents compiled form bilingual resources. Preliminary results obtained from a setof1248selectedPWNsynsetsshowthattheproducedSerbiansynsetscontain 4024 literals, out of which 2278 were offered by the system we present in this paper, whereas experts added the remaining 1746. Approximately one half of ...... Inter- Lingual Index (ILI), used to align synsets in different languages within each cluster on basis of PWN structure. In BWN, the structure of PWN was extended to accommodate concepts specific to Balkan languages that were not found in PWN. Manual development and maintenance of wordnets has proved ...
... 130 with 3 literals, 612 with 4 literals, 215 with five literals, and 121 synsets with more than five literals. The majority of SerWN synsets are aligned with corresponding PWN 3.0 synsets via the Interlingual Index, with the exception of a little over 1,000 Serbian specific synsets that do not exist ...
... support experts in their adjustment task. Column ID contains the interlingual index, used to bind definition and literals of a specific synset. Column domain shows the synset domain from PWN and is used to check whether the synset has been assigned to the appropriate domain expert. In order to reduce ...Ranka Stanković, Miljana Mladenović, Ivan Obradović, Marko Vitas, Cvetana Krstev. "Resource-based WordNet Augmentation and Enrichment" in Proceedings of the Third International Conference Computational Linguistics in Bulgaria (CLIB 2018), May 27-29, 2018, Sofia, Bulgaria, Sofia : The Institute for Bulgarian Language Prof. Lyubomir Andreychin, Bulgarian Academy of Sciences (2018)
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Digital Library From A Domain Of Criminalistics As A Foundation For A Forensic Text Analysis
U ovom radu predstavljen je model koji omogućava prikupljanje, pripremu, opis metapodataka, upravljanje i eksploataciju, uključujući pretragu punog teksta dokumenata iz domena kriminalistike napisanih na srpskom jeziku. Predloženi pristup primenjuje se na veb portalu koji sakuplja različite tekstove nastale iz časopisa Akademije za kriminalistiku i policijske studije, Krivičnog zakona Srbije, konferencija „Tara“ i „Reiss“, kao i iz nekih doktorskih disertacija vezanih za ovu oblast istraživanje. Nakon obrade teksta, korpus koji sadrži preko 5500 stranica običnog teksta, kreiran je i ...... also literals from the synsets which are connected by the relation of hypernym. Multilingual expansion is implemented using two wordnets and their inter- lingual index. The method differs from the previous only in the possibility of extending the query literals in the other language which can be reached ...
... University of Belgrade – Faculty of Mining and Geology Aleksandra Tomašević University of Belgrade – Faculty of Mining and Geology Miljana Mladenović PhD eVox Solutions Ranka Stanković PhD University of Belgrade – Faculty of Mining and Geology Nikola Vulović University of Belgrade – Faculty ...
... from journals of The Academy of Criminalistics and Police Studies, Criminal code of Serbia, the “Tara” and “Reiss” conferences, and from some of PhD dissertations related to this field of research. After text processing, a corpus containing over 5500 pages of plain text is created and prepared for ...Dalibor Vorkapić, Aleksandra Tomašević, Miljana Mladenović, Ranka Stanković, Nikola Vulović. "Digital Library From A Domain Of Criminalistics As A Foundation For A Forensic Text Analysis" in International Scientific Conference “Archibald Reiss Days” Thematic Conference Proceedings Of International Significance, Belgrade, 7-9 November 2017, Academy Of Criminalistic And Police Studies Belgrade (2017)
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Preliminary regional landslide susceptibility assessment using limited data
Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska (2019)In this paper a heuristic approach for preliminary regional landslide susceptibility assessment using limited amount of data is presented. It is called arbitrary polynomial method and takes into account 5 landslide conditioning parameters: lithology, slope inclination, average annual rainfall, land use and maximum expected seismic intensity. According to the method, in the first stage, a gradation is performed for each of the carefully selected conditioning parameters by assigning so called rating points to the grid cells on which the ...... ensemble frequency ratio and logistic regression models in West Sumatera Province, Indo- nesia.– Catena, 118, 124-135. doi.org/10.1016/j.catena.2014.02.005 WANG, Q., LI, W., CHEN, W. & BAI, H. (2015): GIS-based assessment of landslide susceptibility using certainty factor and index of entropy models for ...
... Recommendations for the quantitative analysis of landslide risk.– Bulletin of Engineering Geology and the Environment, 73, 209–263. doi: 10.1007/s10064-013-0538-8 DEMIR, G., AYTEKIN, M. & AKGUN, A. (2015): Landslide susceptibility mapping by frequency ratio and logistic regression methods: an example from ...
... al., 2000; ARDIZZONE et al., 2002; ERCANOGLU et al., 2008). It is based on the use of an index or parameter maps (SOETERS & VAN WESTEN, 1996), and it is accepted as being applicable only for the preliminary levels of research (GÜNTHER et al., 2013b) if not combined with more advanced approaches ( ...Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska. "Preliminary regional landslide susceptibility assessment using limited data" in Geologica Croatica , Croatian Geological Society (2019). https://doi.org/10.4154/gc.2019.03
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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... o the aromatic ring, and the secondary interaction of released ions have significant roles in 0.0 0 ing the investigated compounds” absorption maxima and the UV lamp's characteristics. he degradation progress and regulate the degradation pathways. The obtained results can Namely, the absorption ...
... ; Kulacz, K.; Sebestyćn, V. V)Os, CeO» and Their MWCNTs Nanocomposites Modified for the Removal of Kerosene from Water. Nanomaterials 2022, 12, 189. CrossRef] [PubMed] Shvets, P.; Dikaya, O.; Maksimova, K.; Goikhman, A. A review of Raman spectroscopy of vanadium oxides. J. Raman Spectrosc. 2019 ...
... Macyk, W. How to correctly determine the band gap energy of modified semiconductor photocatalysts based on UV-Vis spectra. J. Phys. Chem. Lett. 2018, 9, 6814–6817. [CrossRef] Schneider, K. Optical properties and electronic structure of V»Os, V»Os and VO». J. Mater. Sci. Mater. Electron. 2020, 31, 10478—10488 ...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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Coal homogenization stockyard sizing “Tamnava – Zapad” case study
... qualities and are homogenized according to different primary parameters. The number of layers in each pile is selected depending on variability and the value range of the parameter defining the coal quality, while the stacking method depends on the number of layers. STACKING METHODS AND NUMBER OF LAYERS ...
... length, width and height of the stacked coal are sized. In these considerations the problem of self-inflaming of coal, availability of space, availability of funding, etc., are not taken into account. Only the technical and technological parameters affecting the size of the pile and stockyard are ...
... PILES DEPENDING ON ORGANIZATiON OF STACKING AND RECLAIMING The smallest number of piles is two, because that enables simultaneous filling of one and emptying of the other pile. Because of the different capacities of stackers and reclaimers (roughly speaking, stacking it twice as fast as reclaiming) ...Božo Kolonja, Dinko Knežević, Ranka Stanković, Dejan Stevanović, Detlef Trummer. "Coal homogenization stockyard sizing “Tamnava – Zapad” case study" in Proceedings of 13th International Symposium Continuous Surface Mining, ISCSM 2016, / (2016)
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Energetska bezbednost sektora prirodnog gasa Srbije
U prve dve decenije 21. veka obezbeđivanje sigurnosti snabdevanja prirodnim gasom domaćeg tržišta bio je jedan od prioriteta razvoja energetike Srbije. Istovremeno, aspekt sigurnog snabdevanja bio je neizostavni deo slagalice stvaranja energetske bezbednosti. Izražena uvozna zavisnost je dominantna karakteristika sektora prirodnog gasa, tačnije, Republika Srbija je snažno zavisna od ruskog gasa, sa više od 80% uvezenih količina gasa, a do pre dve godine snabdevala se isključivo kroz jednu interkonekciju. U radu se razmatra aktuelna situacija u sektoru prirodnog ...... analysis of the energy security of the natural gas sector assessed by the N-1 index, IDUPS and the parameter of infrastructure development of the sector was carried out. These three parameters describe the availability of the system in a technical sense, the diversification of sources and directions ...
... professor at the Faculty of Mining and Geology, University of Belgrade. He graduated, completed his master's studies, and received his doctorate in the scientific field of oil mining, mechanization, and automation in mining, at the Faculty of Mining and Geology, University of Belgrade, where he was ...
... directions of supply, as well as the degree of structural development, compared to the foreseen strategic development plans, respectively. This paper also presents a new methodology for determining the impact of system readiness and the number of sources and directions of supply, as well as their ...Aleksandar Madžarević, Predrag Jovančić, Miroslav Crnogorac. "Energetska bezbednost sektora prirodnog gasa Srbije" in 36. Međunarodni kongres o procesnoj industriji – Procesing ’23, Šabac, 1. i 2. juna 2023. , Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) Društvo za procesnu tehniku (2023)