Претрага
493 items
-
Дефинисање археолошких објеката на локалитету Кремените њиве применом Ојлерове 3Д деконволуције на магнетометријске податке
... nd is performed by moving the sensor pair. More precisely, both me‐ thods require the use of two sensors. If one sensor moves over the investigated area, the second sensor must be at the base point and it measures the daily variations of the Earth's magnetic field. Daily variations, which ...
... which intensities are usually 50‐100 nT , are removed by subtracting data from the base point from those measured in the investigated area. An important parameter of the interpretation of magnetic measurements is defining the depth at which the source of magnetic anomalies is located. ...
... , since in all cases in the available literature for Euler's 3D deconvolution the values of the total magnetic intensity (TMI) are used. The total area of the surveyed site is 2827 m2. RESULTS AND DISCUSSION Testing Standard and Located O3DD on synthetic data has shown that both methods ...Весна Цветков, Илија Васиљевић, Бранислав Сретеновић, Весна Дамњановић. "Дефинисање археолошких објеката на локалитету Кремените њиве применом Ојлерове 3Д деконволуције на магнетометријске податке" in Књига апстраката 17. Конгрес геолога Србије, Врњачка Бања 17-20. мај, Српско геолошко друштво (2018)
-
Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal
Sanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović (2018)glukoza, fruktoza, аktivni ugalj, hidrotermalni tretman, aktivacija hidroksida, teški metali, metilen plavo... phase produced at the surface of the activated carbon caused lowering of the BET surface area. Also, from Table 2, it may be seen that the KOH activated sample obtained from fructose possess a lower specific surface area in comparison with samples activated with NaOH that is opposite from samples obtained ...
... The factors which distinguished the KOH activated samples were high yield (~14%), content of organic carbon (63–74%), porosity and specific surface area (SBET ~700–1360 m2/g), a low degree of the crystal phase, indications that potassium ions may be included in heavy metals removal, good removal of the ...
... The factors which distinguished the KOH activated samples were high yield (~14%), content of organic carbon (63-74%), porosity and specific surface area (Sper ~700-1360 m?/ g), a low degree of the crystal phase, indications that potassium ions may be included in heavy metals removal, good removal of ...Sanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović . "Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal" in Minerals, MDPI (2018)
-
Mesozoic carbonate rocks in Serbia used as dimension stone
Vesna Matović, Tijana Vojnović Ćalić (2016)The building industry in Serbia uses, to a great extent, imported natural stone for architectural purposes. The significance of local deposits, particularly limestones, is not adequately perceived despite the country’s abundance of these valuable resources. Therefore, this study focuses on Serbia’s Mesozoic carbonate rocks, specifically on the deposits of four selected quarries: Klisura, Skrzut, Struganik, and Tisnica. The quality and prospects of the application of these limestones has not yet been the subject of a detailed, comprehensive investigation. Therefore, ...... possible effect on Serbia's building and stone industry, and eventually the export market. @ Springer V. Matović, T. V. Ćalić Study area The study area includes four selected limestone quarries: Klisura (Fig. 1a), Skrzut (Fig. 1b), Struganik (Fig. 1c), and Tisnica (Fig. 1d). These are the ...
... territory of Sirogojno village (Fig. 1). The wide terrain, a hilly mountainous area with altıttudes ranging from 800 to 1,000 m, belongs to the northeastern edge of the Zlatibor massif. The Klisura quarry occupies an area of 0.12 km? at a few exploitation levels (Fig. 1a). The thickness of the ore ...
... town of Uzice. Similar to the Klisura quarry, the Skrzut quarry belongs to the northeastern edge of the Zlatibor massif (Fig.1). It occupies an area of approximately 4,000 m”. Natural exploitation levels follow planar bed- ding surfaces of limestone (Fig. 1b). The limestone ore body is elongated ...Vesna Matović, Tijana Vojnović Ćalić. "Mesozoic carbonate rocks in Serbia used as dimension stone" in Bulletin of Engineering Geology and the Environment, Springer Science and Business Media LLC (2016). https://doi.org/10.1007/s10064-015-0722-0
-
Results of comprehensive monitoring activities on Umka landslide, Belgrade, Serbia
Biljana Abolmasov, Uroš Đurić (2021)... radar satellite images, conventional geodetic monitoring network data and UAV imaging, processing and data analysis in the last six years. Study area The Umka landslide is formed on the right Sava river bank, 22 km southwest from Belgrade, and occupies part of Belgrade suburban settlement Umka ...
... 12 (4): 689-702. Ćorić S., Božinović D., Vujanić V., Jotić M. and Jelisavac B., 1996, Geotechnical characteristics of old landslides in Belgrade area. In: Senneset K (ed) Proceedings of the 7th International Symposium on Landslides, 17–21 June 1996, Trondheim, Norway, Vol 2, Balkema, Rotterdam, ...Biljana Abolmasov, Uroš Đurić . "Results of comprehensive monitoring activities on Umka landslide, Belgrade, Serbia" in 3rd European Regional Conference of IAEG/ Athens/ Greece/ 6-10 October 2021, IAEG National Group Greece (2021)
-
A necessary and sufficient condition for an algebraic integer to be a Salem number
Dragan Stankov (2019)We present a necessary and sufficient condition for a root greater than unity of a monic reciprocal polynomial of an even degree at least four, with integer coefficients, to be a Salem number. This condition requires that the minimal polynomial of some power of the algebraic integer has a linear coefficient that is relatively large. We also determine the probability that an arbitrary power of a Salem number, of certain small degrees, satisfies this condition.Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomialsDragan Stankov. "A necessary and sufficient condition for an algebraic integer to be a Salem number" in Journal de theorie des nombres de Bordeaux (2019). https://doi.org/10.5802/jtnb.1076
-
Properties of fly ash and slag from the power plants
This paper describes the physical, chemical and mineral properties of ash and slag, which were taken from thermal power plants Nikola Tesla A, Nikola Tesla B, Kostolac A and Kostolac B. The knowledge of the mineralogical material composition is important because the type of minerals directly determines the properties of the fly ash and slag and their possible application. Laboratory tests showed that ash and slag samples consist of the following minerals: amorphous materials, quartz, feldspar, mullite, melilite, cristobalite, ...fly ash, slag, physical composition, chemical composition, mineral composition, X-ray diffraction method... material. It falls through the latticed stokehole and is rapidly cooled and extinguished in water. The fly ash and slag landfills in Serbia occupy an area of 1639 ha and if they are under constant control and monitoring, significantly influence the dis- ruption of the environment, which is reflected ...
... possibility of fly ash and slag application as a construction substitute thus preservinglimited reserves of natural building materials. 2. STUDY AREA PPNT A is the most important producer of electricity in Serbia and is built on the bank of the river Sava. PPNT A is 4 km from Obrenovac, PPNT B ...
... The Kolubara lignite basin is economically one of the most important coal basins in Serbia. It is located about 60km SSW of Belgrade, and covers an area of almost 600km2, extending in an E-W direction for up to 55km, and in the N-S direction up to 15km. This basin is divided into several fields („A” ...Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić. "Properties of fly ash and slag from the power plants" in Geologia Croatica, Zagreb : Croatian Geological Survey (2016). https://doi.org/10.4154/gc.2016.26
-
Палеомагнетски резултати из Тимочког магматског комплекса, Источна Србија
... бања‐Борско језеро, 9‐Брестовац, 10‐Оштрељ, 11‐Доња Бела река, 12‐нови пут Бор‐Зајечар, 13‐Стрмен. Figure 1. Simplified geological map of the studied area (after Banješević, 2010) with paleomagnetic sampling localities. Legend: 1: Campanian‐Maastrichtian sediments, 2: plutonites, 3: Senonian and ...
... ian and ended by deposition of reef sediments and conglomerates and sandstones in Upper Campanian‐ Maastrichtian. The volcanic activity in the area started in Upper Turonian and ended in Upper Campa‐ 750 nian. Durring this period the volcanic activity produced various calk‐alkaline ...
... samples were collected. The samples were oriented in situ with the magnetic and/or sun compass. The principal aim was to find out if the studied area was involved in a large scale displacement during or after the time covered by the samples. METHODS The samples were cut into standard‐size ...Весна Лесић, Емо Мартон, Драган Лукић, Весна Цветков. "Палеомагнетски резултати из Тимочког магматског комплекса, Источна Србија" in Knjiga apstrakata 17. Kongres geologa Srbije, Vrnjačka Banja 17-20. maj 2018., Српско геолошко друштво (2018)
-
Actual contamination of the Danube and Sava rivers at Belgrade (2013)
Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer (2014)rečni sistemi, stanje zagađenja, organski zagađivači, teški metali, skrining analize, non-target screening... Herzegovina and Serbia. The Sava River Basin covers a catchment area of 95 719 km2, which is approximately 40 % of the countries’ combined total surface area and it is the source of more than 80 % of the total available freshwater in the area. Only a few publications have considered contamination of the ...
... ACTUAL CONTAMINATION OF SAVA AND DANUBE 1171 The River Danube is the second longest river in Europe with a length of about 2 800 km.13 Its catchment area covers 801 500 km2, with approximately 81 million inhabitants in 19 countries.14 The Danube flows through four capitals (Vienna, Budapest, Bratislava ...
... and P were determined.21 The present study focused on a comprehensive investigation on the state of pollution of the Danube and Sava Rivers in the area of their confluence, the Belgrade region. For these purposes, different complementary analytical approaches were used at different laboratories in ...Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer. "Actual contamination of the Danube and Sava rivers at Belgrade (2013)" in Journal of the Serbian Chemical Society, National Library of Serbia (2014). https://doi.org/10.2298/JSC131105014A
-
Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)
Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović. "Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)" in Carbonates and Evaporites, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s13146-019-00548-6
-
From post-disaster landslides inventory to open landslides data
Biljana Abolmasov, Miloš Marjanović, Uroš Đurić, Jelka Krušić. "From post-disaster landslides inventory to open landslides data" in Proceedings of 3rd European Regional Conference of IAEG/ Athens/ Greece/ 6-10 October 2021, International Association for Engineering Geology and the Environment (2021)
-
The correlation of Upper Miocene lithostratigraphic units of the southern part of the Pannonian basin
Filip Anđelković, Dejan Radivojević (2019)... Banat (Serbia), southeastern parts of Hungary (Great Hungarian Plain), as well as some parts of Croatia (Slavonian mountains and Hrvatsko zagorje area). The described lithostratigraphic units are on the level of formations and members and are characterized by their lithological concent, depositional ...
... Mațenco, L., & Radivojević, D., (2012). On the formation and evolution of the Pannonian Basin: constraints derived from the structure of the junction area between the Carpathians and the Dinarides. Tectonics. 31, TC6007 8. Radivojević, D., (2019). Pannonian Basin, Pannonian Basin System and Pannonian ...Filip Anđelković, Dejan Radivojević. "The correlation of Upper Miocene lithostratigraphic units of the southern part of the Pannonian basin" in Knjiga sažetaka i radova II Kongresa geologa Bosne i Hercegovine, Laktaši BiH, oktobar 2-4, 2019, Udruženje geologa u Bosni i Hercegovini (2019)
-
The analysis of the geothermal energy capacity for power generation in Serbia
Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk (2013)... heat may be used either for heating or for cultivation in an area exceeding 5 ha. On the basis of calculation for available heat amount, the authors concluded that geothermal water could be used either for heating or for cultivation on the area bigger than 5 ha. Milanovi} et al. [5, 6] develop geothermal ...
... heat may be used either for heating or for cultivation in an area exceeding 5 ha. On the basis of calculation for available heat amount, the authors concluded that geothermal water could be used either for heating or for cultivation on the area bigger than 5 ha. Milanovic et al. [5, 6] develop geothermal ...
... Boreholes, Geothermics, 37 (2008), 6, pp. 565-585 [18] Martinovi}, M., et al., Possibility of Electricity Production from Hydrogeothermal Resources in the Area of Surdulica Granitoid Massif (in Serbian), Proceedings, XIV Serbian Hydrogeological Symposium, Zlatibor, Serbia, 2012, pp. 203-208 [19] Martinovi} ...Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk. "The analysis of the geothermal energy capacity for power generation in Serbia" in Thermal Science, National Library of Serbia (2013). https://doi.org/10.2298/TSCI120215033S
-
Defining location and dip of magnetic anomaly sources applying mathematical transformation
It is significant to define the location and dip of anomaly sources during the geophysical exploration (magnetic, gravity, electric, seismic, etc.). In this paper we presented results obtained during magnetic survey. Applying different method of mathematical transformations on magnetic data we can find the position (edge) and dip of magnetic anomaly sources. For successful solution of this problem, we used combination two method tilt derivative and upward continuation. The study area located in the eastern Serbia, north part of ...Snežana Ignjatović, Milanka Negovanović. "Defining location and dip of magnetic anomaly sources applying mathematical transformation" in 53nd International October Conference on Mining and Metallurgy, IOC 2022, Bor, 3-5. oktobar 2022., Mining and Metallurgy Institute Bor (2022)
-
Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations
The Vršac Mts. in NE Serbia represent the key area to investigate structural relations between the Northern Serbo-Macedonian Subunit and Supragetic Unit of the Dacia Mega-Unit. The geodynamic events during the Variscan orogeny in the Late Paleozoic colligated the two units and led to their metamorphic differentiation. The Late Cretaceous extension exhumed the medium-grade Serbo-Macedonian metamorphic rocks and structurally juxtaposed them against the low-grade metamorphosed basement of the Supragetic Unit along an E-dipping shear zone, which outcrops in the ...severna srpsko-makedonska subjedinica, supragetikum, kinematska analiza, multifazna ekstenzionalna deformacija... middle Miocene Cerna and Timok faults of the South and Serbian Carpathians, located to the east and south-east of the study area (Fig. 1b). To the south of the study area, such low-offset strike-slip deformation was documented away from the Cerna and Timok faults, in the internal Serbian Carpathians ...
... May 3, 2021; accepted in revised form September 6, 2021; Associate Editor: Rastislav Vojtko) Abstract: The Vršac Mts. in NE Serbia represent the key area to investigate structural relations between the Northern Serbo-Macedonian Subunit and Supragetic Unit of the Dacia Mega-Unit. The geodynamic events ...
... mountains belongs to the Ser- bo-Macedonian and Supragetic Unit of the Dacia tectonic Mega-Unit (Kräutner & Krstić 2002, 2003) and thus repre- sents a key area where the contact between these two units can be studied at the surface in their northern segments. However, the geometry and kinematics of this contact ...Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić, Marija Ružić, Aleksa Luković . "Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2021). https://doi.org/https://doi.org/10.31577/GeolCarp.72.5.3
-
Stratigraphy and Microfauna (Radiolarians and Foraminifera) of the Upper Cretaceous (Upper Santonian–Lower Campanian) Carbonate Deposits in the Area of Struganik Village, Western Serbia)
Santonian, Campanian, radiolarians, planktonic foraminifera, biostratigraphy, limestones, Struganik, SerbiaLiubov Bragina, Nikita Bragin, Luidmila Kopaevich, Nevenka Đerić, Nataša Gerzina Spajić. "Stratigraphy and Microfauna (Radiolarians and Foraminifera) of the Upper Cretaceous (Upper Santonian–Lower Campanian) Carbonate Deposits in the Area of Struganik Village, Western Serbia)" in Stratigraphy and Geological Correlation, Pleiades Publishing Ltd (2020). https://doi.org/10.1134/S0869593820010037
-
Demise of the Wetterstein Carbonate Platform and onset of the Dachstein Carbonate Platform recorded in deep-water successions of the East Bosnian-Durmitor megaunit (Pliješevina, northern Montenegro, Dinarides)
Milica Mrdak, Eva Wagerer, Milan Sudar, Nevenka Djerić, Martin Đaković, Hans-Jürgen Gawlick. "Demise of the Wetterstein Carbonate Platform and onset of the Dachstein Carbonate Platform recorded in deep-water successions of the East Bosnian-Durmitor megaunit (Pliješevina, northern Montenegro, Dinarides)" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2024). https://doi.org/10.31577/GeolCarp.2023.26
-
Long-term planning methodology for improving wood biomass utilization
The insufficiently developed forest management system is often followed by undeveloped forest resources supply chain and insufficient institutional support. These cause inefficient usage of fuel-wood as well as huge amounts of unused forest residues. In order to achieve optimal and long-term sustainable utilisation of biomass, an original methodology based on the interaction of mathematical optimization and backcasting approach has been developed. Mathematical optimization is used for both generation and consideration of techno-economic parameters of the forest biomass supply chain. ...Vladimir Vukašinović, Dušan Gordić, Marija Živković, Davor Koncalović, Dubravka Živković. "Long-term planning methodology for improving wood biomass utilization" in Energy, Elsevier BV (2019). https://doi.org/10.1016/j.energy.2019.03.105
-
Reducing environmental impact caused by mining activities in limestone mines
Radmila Gaćina, Bojan Dimitrijević (2022)Mining and its related activities have always resulted in changes in the environment and these changes can vary from one area to another. As a result of mining, several types of changes can be distinguished: destruction of land and existing vegetation, changes in terrain topography, modification in air quality, changes in surface and groundwater quality, as well as change geotechnical conditions of the rock. Environmental impact of mining have been a public concern. There is widespread global interest in mining ...Radmila Gaćina, Bojan Dimitrijević. "Reducing environmental impact caused by mining activities in limestone mines" in Underground mining engineering , Belgrade : University of Belgrade - Faculty of Mining and Geology (2022)
-
Geomechnical research for the new bucket wheel excavator testing at Open pit “Filijala”
Since 1976 cement marl excavation at open-pit mine „Filijala” is carried out by continuous exploitation technology using bucket wheel excavator SH 400 manufactured by Orenstein und Koppel (O & K) company. Due to the bucket wheel excavator time-worn and high operating cost it was necessary to replace it with new one. In order to test the new bucket wheel excavator and prove its capacity a testing zone was defined as test block for excavation, in which the bucket wheel ...Vladimir Čebašek, Nebojša Gojković, Veljko Rupar, Miodrag Pribićević. "Geomechnical research for the new bucket wheel excavator testing at Open pit “Filijala”" in Рударски гласник, Рударски институт - Београд (2020). https://doi.org/10.25075/BM.2020.07
-
Introduction to special section: Characterization of hydrocarbon and geothermal resource potential and carbon sequestration opportunities of the Pannonian Basin
Balázs Németh, Gábor Tari, Gábor Bada, Dejan Radivojević, Bruno Tomljenovic, Csaba Krézsek. "Introduction to special section: Characterization of hydrocarbon and geothermal resource potential and carbon sequestration opportunities of the Pannonian Basin" in Interpretation, AAPG SEG (2018). https://doi.org/10.1190/INT-2017-1207-SPSEINTRO.1