Претрага
243 items
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Concepts for Improving Machine Learning Based Landslide Assessment
Miloš Marjanović, Mileva Samardžić Petrović, Biljana Abolmasov, Uroš Đurić. "Concepts for Improving Machine Learning Based Landslide Assessment" in Natural Hazards GIS-based Spatial Modeling Using Data Mining Techniques, Advances in Natural and Technological Hazards Research, volume 48, Springer Nature Switzerland AG 2019 (2019). https://doi.org/10.1007/978-3-319-73383-8_2
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Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation
The Dark Gate is the monument of culture, part of the cultural and historical complex of the Belgrade Fortress. It is constructed of limestone blocks that after 270 years of exposure to environmental conditions and different anthropogenic influences show wide ranges of decay forms. During 2007, detail registration of all built limestone microfacies and weathering forms was done using tools of monument mapping. A correlation scheme ‘‘intensity– damage category’’ was made according to the type, intensity, and distribution of ...... descends from the Upper Town of the fortress, while on the western side River Sava is 50 meters away. According to the type of building material, the gate is a heterogeneous structure. South facade is built entirely of limestone blocks, while the inner part of the gate and the northern facade ...
... related to the destroyed waterproofing layers above the gate. Although the upper part of the gate is more influenced by wind that results in the faster drying process, the lower part of facades is influenced by the groundwater rising up. Additionally, gate position close to the Sava river (only ...
... and 2014, the eastern part of the gate was separated as the zone of the monument that had suffered the heaviest damage. Differ- ences among the values of damage indices showed that the position of the gate is one of the main causes of the present state of stone blocks built in the Dark Gate ...Maja Franković, Nevenka Novaković, Vesna Matović. "Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation" in Environmental Earth Sciences, Springer Science and Business Media LLC (2015). https://doi.org/10.1007/s12665-014-3843-z
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Approach to operational mine planning: Case study Tamnava West
... partings (14 sandstone and 32 clay), clay basement, interburden sandstone and overburden river sediments have been modeled within a stratigraphic section up to 98 m thick. The reason for so detail model lies in the fact that this model is base for coal homogenization process, so it need to represent ...
... Figure 2. Portion of the pit Tamnava West All the boreholes were drilled vertically, but the regional dip of the Tamnava West deposit in average is 3°, the apparent thickness of the intersected coal seams closely approximates the true thickness (except in the western part where intensive ...
... coal is the most important fuel in the generation of electricity, accounting for 65% of the power production 2. This fact is the main reason why production objectives of coal mine and power plant are strongly connected. The power plant owner is interested to know in advance the quality ...Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković. "Approach to operational mine planning: Case study Tamnava West" in Tehnika, Beograd : Savez inženjera i tehničara Srbije (2014). https://doi.org/10.5937/tehnika1406952S
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Sitni, ali bitni: uloga sitnih sisara, herpetofaune i mekušaca u rekonstrukciji pleistocenskih paleosredina
Fosilni ostaci životinja i biljaka imaju važnu ulogu u rekonstrukciji pleistocenskih paleosredina. U ovom radu opisan je značaj tri grupe životinja: sitnih sisara, herpetofaune I mekušaca. Mada je za rekonstrukciju važan sastav čitave asocijacije, nalasci pojedinih vrsta mogu biti dovoljno indikativni da otkriju tip staništa ili klimatske uslove. Posebnu teškoću pri rekonstrukciji paleosredina u Srbiji predstavlja činjenica da klimatske promene na Balkanskom poluostrvu nisu bile tako oštre kao u srednjoj i zapadnoj Evropi, pa ne postoji drastična razlika u ...... whether the immediate environment was forest, steppe or open type (wet meadows to steppe), whether these are species that indicate marshy, river and lake environments or are in question forms that are exclusively related to loess and terrestrial living conditions, etc. Conclusion: The use of small ...
... from the genus Corbicu/a, which are present in the alluvial deposits of the northern parts of Serbia, have great climatic and stratigraphic significance. During the Middle Pleistocene, Corbicu/a retreated from the Pannonian Basiın, inhabiting the Caspian Basin, India and some parts of the American ...
... tion: The simplest and at the same time the most frequently used method for habitat type reconstruction is the method of ecological groups. For each species, it is determined in which group of habitats it most often lives today, and then the percentage representation of each group in the entire ...Katarina Bogićević, Draženko Nenadić, Dragana Đurić, Mihajlo Jovanović, Aleksandra Savković. "Sitni, ali bitni: uloga sitnih sisara, herpetofaune i mekušaca u rekonstrukciji pleistocenskih paleosredina" in Zbornik sažetaka III Kongresa geologa Bosne i Hercegovine, Neum, 21.-23.09.2023., Ilidža : Udruženje geologa Bosne i Hercegovine (2023)
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A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)
Gordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević (2021)The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were ...Uljni šejl, Aleksinac, organska supstanca, otvoreni i zatvoreni sistem pirolize, biomarkeri, izotopski sastav ugljjenikaGordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević. "A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)" in Marine and Petroleum Geology, Elsevier BV (2021). https://doi.org/10.1016/j.marpetgeo.2021.105383
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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)
... of Vranjska Banja area, located between the Surdulica granodiorite and the Južna Morava River (Fig. 2), were traditionally attributed to Vlasina Unit, although they show evidence of higher metamorphic grade than the greenschist facies typical for the Vlasina Unit (Babović et al. 1977). Mineral ...
... central SMM into the Lower Complex and Vlasina Unit is generally based on the metamorphic grade, we designate the metamorphic rocks in Vranjska Banja area as a part of the Lower Complex (Figs. 2, 3). Structural fabric of Vranjska Banja area was mostly examined along a Banjska river valley east of ...
... ka river area (Vlasotince). Vesnik 44:101—128 Mladenović A, Trivić B, Antić M et al (2014) The recent fault kine- matics in the westernmost part of the Getic nappe system (East- ern Serbia): evidence from fault slip and focal mechanism data. Geol Carpath 65:147—161. doi:10.2478/geoca-2014-0010 ...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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Fuzzy optimization in hydrodynamic analysis of groundwater control systems: Case study of the pumping station “Bezdan 1”, Serbia
Dragoljub Bajić, Dušan Polomčić (2014)A groundwater control system was designed to lower the water table and allow the pumping sta-tion “Bezdan 1” to be built. Based on a hydrodynamic analysis that suggested three alternative solutions, mul-ticriteria optimization was applied to select the best alternative. The fuzzy analytic hierarchy process methodwas used, based on triangular fuzzy numbers. An assessment of the various factors that influenced the selec-tion of the best alternative, as well as fuzzy optimization calculations, yielded the “weights” of the alternativesand the ...groundwater lowering, groundwater management scenario, fuzzy analytic hierarchy process,expert knowledge, triangular fuzzy numbers, linguistic variables... shows the lowering of the water table of the analyzed alternatives. For each alternative, the characteristics of the groundwater control system: the number of wells and their spatial distribution, and the time need- ed to achieve maximal lowering of the water table below the excavation for the “Bezdan ...
... canal stages in the study area. Shown below are the calculations for the selection of the best alternative in accordance with the above- described steps (the FAHP approach discussed in the previous section). The criteria matrix was produced by evaluating the criteria according to the fuzzified scale ...
... was not assumed that the best time was the shortest time. Instead, the time was related to the analyzed conditions and the eleva- tion of the water table for each alternative. • Characteristics of the groundwater control system (K2), which included the number of components of the groundwater control ...Dragoljub Bajić, Dušan Polomčić. "Fuzzy optimization in hydrodynamic analysis of groundwater control systems: Case study of the pumping station “Bezdan 1”, Serbia" in Geološki anali Balkanskoga poluostrva, Belgrade : University of Belgrade - Faculty of mining and geology (2014). https://doi.org/10.2298/GABP1475103B
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Part of Speech Tagging for Serbian language using Natural Language Toolkit
Ranka Stanković, Boro Milovanović (2020)Dok se razvijaju složeni algoritmi za NLP (obrada prirodnog jezika), osnovni zadaci kao što je označavanje ostaju veoma važni i još uvek izazovni. NLTK (Natural Language Toolkit) je moćna Python biblioteka za razvoj programa zasnovanih na NLP-u. Pokušavamo da iskoristimo ovu biblioteku za kreiranje PoS (vrsta reči) oznake za savremeni srpski jezik. Jedanaest različitih modela je kreirano korišćenjem NLTK API-ja za označavanje. Najbolji modeli se transformišu sa Brill tagerom da bi se poboljšala tačnost. Obučili smo modele na označenom ...... H. Hon, “Hidden Markov Models” in Spoken Language Processing, Upper Saddle River, New Jersey: USA, ch. 8, sec. 2, pp. 378-391 [20] H. Daume III, “Frustratingly Easy Domain Adaptation,” Proc. 45th Annual Meeting of the Association for Computational Linguistics, Prague, Czech Republic, June 2007 ...
... tagging API. The best models are transformed with the Brill tagger to improve the accuracy. We trained the models on the tagged dataset counting 180,000 tokens. The best results on the test set of 20,000 tokens were demonstrated with the Perceptron tagger: 92,52 – 95,76% accuracy for the different ...
... It remembers the tags for the most frequent words, while marking all the other words as None. A number of the most frequent words for which the tags should be stored is configurable. Figure 2 shows how accuracy of the model measured on the whole dataset improves with the number of the stored tags ...Ranka Stanković, Boro Milovanović. "Part of Speech Tagging for Serbian language using Natural Language Toolkit" in 7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020, Academic Mind, Belgrade (2020)
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Srbija u OneGeology Europe
Геолошки завод Србије као носилац Пројекта ОneGeologyEurope заједно са Рударско геолошким факултетом и Министарством за природне ресурсе, рударство и просторно планирање су се укључили у међународни Пројекат OneGeology Europe у мају 2013. године у већ поодмаклој фази израде Пројекта. До краја 2013. године испунили су завршене активности које треба да доведу до пуноправног укључења у Пројекат чиме је Република Србија нашла своје место на Геолошкој карти Европе 1:1М. Геолошка карта Србије 1:1М представља компилациону односно поједностављену верзију ОГК 1:500 ...... figure 4, presents the polygons with the geological units of the original map 1:500,000, and the right map is a new generated map 1:1M, produced after the generalization. Merging of the adjacent polygons with the same geological units was done by the geometric unification of the neighboring units ...
... in figure 4, presents the polygons with the geological units of the original map 1:500,000, and the right map is a new generated map 1:1M, produced after the generalization. Merging of the adjacent polygons with the same geological units was done by the geometric unification of the neighboring units, using ...
... from the Geological Survey and the Geological Institute of the former Yugoslavia, enabled today's Geological Survey of Serbia involvement in the Project OneGeology-Europe With the assistance of competent Ministry and Faculty for mining and geology, Serbia in the last moment step in the new European ...Danka Blagojević, Ranka Stanković, Petar Stejić, Velizar Nikolić. "Srbija u OneGeology Europe" in Zapisnici Srpskog geološkog društva za 2013. godinu, Beograd : Srpsko geološko društvo (2014)
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State and perspective of individual household heating in Serbia: A survey-based study
This paper presents the results of the household survey on individual household heating systems in Serbia. The survey was conducted in the period October to December 2020 with the participation of 1100 households with individual household heating systems. The information collected in the questionnaire can be separated into three main parts: basic household data, current heating system characteristics, and households’ perceptions and attitudes. The survey results provide unique and comprehensive information concerning individual household heating systems and the main ...Boban Pavlović, Dejan Ivezić, Marija Živković. "State and perspective of individual household heating in Serbia: A survey-based study" in Energy and Buildings, Elsevier BV (2021). https://doi.org/10.1016/j.enbuild.2021.111128
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Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability
Marija Živković, Dejan Ivezić (2021)Transformation of the heating sector is recognized as being essential for ensuring reliable and afordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import dependency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered and treated as a big advantage of district heating systems. Despite many advantages, sewage wastewater heat is still a mostly unused resource at the global level and a totally unused ...рекуперација топлоте из отпадних вода, систем даљинског грејања, топлотне пумпе, енергетске уштеде, емисија угљендиоксида, енергетска безбедност, Србија... elements of the sludge line for a capacity of 126,000 PE. Digesters for the treatment of sludge and biogas production facilities are under construction. Currently, approx. 60,000 inhabitants are connected to the existing plant. Data on average monthly temperature of treated water and river Sava (recipient) ...
... Temperature of treated water and river Sava (recipient), (°C) Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Treated water 11.1 11.3 14.1 15.9 18.8 22.2 23.8 24.2 21.8 19.7 15.8 12.2 Sava 3.1 3.9 6.9 11.2 15.8 19.8 22.5 23 18.9 13.8 8.6 4.8 Fig. 5 The heat load duration curve of DH system ...
... acting on the demand and supply sides. In the previous period, much attention was paid to the demand side, by retrofitting the building stock, but lately, the supply side has received more attention in the EU (European Com- mission 2016). Actions on the supply side should be directed to the decarbonization ...Marija Živković, Dejan Ivezić. "Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability" in Clean Technologies and Environmental Policy, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10098-021-02063-6
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The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)
... days A During the campaign, the monitoring program included all springs (Berilovac, Izvor, Dag Banjica, Glame, Dobri Do and Nišor), the observation wells along the tunnel (PP-1, PP-3 and PP-4), a surface water reservoir and the Dobrodolska River. Monitoring within the tunnel and at the control gate was ...
... PP-3) while the tunnel was online, when both the tunnel and the hydrogeologic environment were under the influence of the pressure of the transported water (Figure 5). In the full operating mode of the HPP (4–5 h/day), at PP-3 the transport of water relieved the pressure not only in the tunnel but within ...
... relative to the water level of the reservoir, with a difference of 3.18 m when the tunnel was completely empty. The rate of inflow into Section II was up to 9 L/s and the groundwater level was generally about 11 m higher than the water level of the reservoir when the tunnel was online. The difference ...Marina Čokorilo Ilić, Ana Mladenović, Marina Ćuk, Igor Jemcov. "The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)" in Water, MDPI AG (2019). https://doi.org/10.3390/w11030603
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Uticaj proširenja nuklearne elektrane “Pakš” (Mađarska) na resurse podzemnih voda u Vojvodini
Bojan Hajdin, Dušan Polomčić (2016)... ENLARGEMENT OF THE NUCLEAR POWER PLANT „PAKS“ (HUNGARY) ON GROUNDWATER RESOURCES IN VOJVODINA The current decision of the neighbouring Republic of Hungary to enlarge the capacities of the existing nuclear power plant „Paks“, located on the Danube river, by two new reactors, poses a significant issue which ...
... aspects of the impact of such a decision on the enviroment in the given region due to the proximity to the territory of the Republic of Serbia. The paper is concerned with the impact of the future nuclear complex's functioning on groundwater resources in Vojvodina, based on experience in the area of ...
... reserve formation in the region of the Pannonian Basin, its utilization and protection. Furthermore, an impact assessment has been given, relative to the strategic solution for future water supply system of the northern and north-western Bačka region, according to which the construction of a groundwater ...Bojan Hajdin, Dušan Polomčić. "Uticaj proširenja nuklearne elektrane “Pakš” (Mađarska) na resurse podzemnih voda u Vojvodini" in Tehnika 66 no. 5, Beograd : Savez inženjera i tehničara (2016): 777-786. https://doi.org/10.5937/tehnika1604545H
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A Fuzzy Expert Model for Availability Evaluation
Each technical system within itself carries the great potential danger of possible occurrence of failure and damages. Mining machines are characteristic by great investment values, costs of unplanned shutdowns, complex working conditions, and environment and workers hazards. Systematic monitoring of the mining machinery is of great importance for the management of the mining companies. Availability is the overall concept of quality of service. Includes information regard to operating state, an idle state, a standby state and shut down. The ...... influence on the dependability and the quality of service due to the known fact that the machine must be primarily available for operation in order to obtain performance. The achievement of the satisfactory value of the machine's availability in the operation depends largely on the appropriate ...
... that gives the probability that the system will work during a selected period of time [1]. Availability is a measure of the state of the system in terms of its efficiency to start operation and to obtain outputs in the required range. The required range is set as the function of the criteria, for ...
... bulldozers - for each year and the average [9]. Obtained results coincides with the result obtained by the expert model. The bulldozer with the higher availability in Table II is the bulldozer evaluated mostly as “excellent” and “good”, while the bulldozer with the lowest availability in Table 2 ...Dejan Ivezić, Miloš Tanasijević, Predrag Jovančić, Radiša Đurić. "A Fuzzy Expert Model for Availability Evaluation" in Proceedings of the 2019 20th International Carpathian Control Conference (ICCC), AGH University of Science and Technology, Kraków - Wieliczka, Poland (2019)
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Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research
магнетометријска испитивања, цик-цак и паралелна аквизиција у ходајућем моду, линеарне аномалије, археологија... cs, New York: Oxford University Press. McCullough, R. 2007 Geophysical survey and limited test exvatinos to locate the Hargrove Cemetery on a land par- cel in the Patoka River National Wildlife Refuge and management Area near Oakland City, Gibson Country, Indiana, Ph.D Tessis, Indiana University ...
... research resolve the problem of the zigzag method of acquisition by using the instrument’s software. Before the start of the acquisition process, the operator sets the direction and the method of acquisition. The in- strument’s software then prepares the data col- lected in the zigzag method for ...
... During the acquisitions of the three modes, traverses were oriented along a north-south direc- tion. In the fi rst case, the operator, at the end of the profi le, made a semicircle and continued the measurement on the next adjacent profi le in a zig- zag fashion. Throughout the acquisition, the data ...Mirko Petković, Vesna Cvetkov, Branislav Sretenović. "Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research" in Arheologija i prirodne nauke (2014)
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Strategic Environmental Assessment in the Application of Preventive Protection for Wind Farm Noise—Case Study: Maestrale Ring Wind Farm
Determining the spatial position of wind turbines is the initial and most important phase in the development of a wind farm project. In this sensitive phase, all potential problems that may arise in the later stages of project development should be prevented by means of spatial and urban planning instruments. This makes it possible to achieve maximum use of the potential of wind in a particular space and, thus, fulfil the technical and economic requirements of the project while ...Energija,energetski inženjering i elektroenergetska tehnologija,obnovljivi izvori energije, održivost i životna sredina,električni i elektronski inženjering,kontrola i optimizacija,inženjering... formulating the objectives and indicators for assessing the impact of noise from the planned Maestrale Ring wind farm (Table 1), the following were taken into ac- count: the “zero” condition of the noise values at the measuring point (Within the national environmental monitoring network) in the Čantavir ...
... The task of the SEA process for the Maestrale Ring project was to assess the signifi- cance of the impact of wind farms on the environment: biodiversity, air, water, land, cli- mate change, landscape, cultural heritage, non-ionizing radiation, noise (which is the fo- cus of this work), the effect ...
... relation to the defined SEA objectives and indicators, using on the 4 groups of criteria from Table 2. For the expert assessment of the noise impact from the planned Maestrale Ring wind farm, the results were used from a partial assessment based on modeling the spatial dis- persion of the noise. Noise ...Boško D. Josimović, Aleksandar Cvjetić, Božidar Manić. "Strategic Environmental Assessment in the Application of Preventive Protection for Wind Farm Noise—Case Study: Maestrale Ring Wind Farm" in Energies, MDPI AG (2021). https://doi.org/10.3390/en14196174
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Održivo korišćenje mađarsko-srpskih međugraničnih vodnih tela
Dušan Polomčić, Zoran Stevanović, Saša Milanović, Stanko Sorajić, Bojan Hajdin, Željko Kljajić (2010)... drinking purpose. The results of the conducted hydrogeological survey, measurements and modelling show insignificant depletion of the groundwater table, without expansion tendency for the forecasted period of the next 20 years and for the simulated extraction rates, which should remain the same or it might ...
... drinking purpose. The results of the conducted hydrogeological survey, measurements and modelling show insignificant depletion of the groundwater table, without expansion tendency for the forecasted period of the next 20 years and for the simulated extraction rates, which should remain the same or it might ...
... implemented. One of the good examples is the “Sustainable development of Hungarian – Serbian transboundary aquifer (SUDEHSTRA)”. Groundwater resources within thick Tertiary aquifer layers deposited between the Danube and Tisa Rivers are vital for the economy and the society of the two countries, c ...Dušan Polomčić, Zoran Stevanović, Saša Milanović, Stanko Sorajić, Bojan Hajdin, Željko Kljajić. "Održivo korišćenje mađarsko-srpskih međugraničnih vodnih tela" in Vodoprivreda 42 no. 04-Jun, Beograd : Jugoslovensko društvo za odvodnjavanje i navodnjavanje (2010): 223-235
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Pleistocene rhinoceros from Bogovina Cave: the first report of Stephanorhinus hundsheimensis Toula, 1902 (Mammalia, Rhinocerotidae) from Serbia
Finds of Pleistocene rhinoceros are rare in Serbia, and only one species (the woolly rhinoceros Coelodonta antiquitatis Blumenbach, 1799) has been reported so far. The current paper presents the dental material of an extinct so-called Hundsheim rhinoceros, Stephanorhinus hundsheimensis Toula, 1902 from Bogovina Cave (East ern Serbia). Both the morphological and metric characteristics of the teeth are consis tent with the attribution to S. hundsheimensis. Unfortunately, the rhinoceros material originated from an uncertain geological context, so there is no ...... F., Sala, B., Tremolada, F., Francou, C., and Raineri, G. 2016. Insights on the opening of the Galerian mammal migration pathway from magnetostratigraphy of the Pleistocene marine-continental transition in the Arda River section (northern Italy). Quaternary Research, 86:220-231. https://doi.org/10 ...
... Bona, F. and Sala, B. 2016. Villafranchian-Galerian mammal faunas transition in South-Western Europe. The case of the late Early Pleistocene mammal fauna of the Frantoio locality, Arda River (Castell’Arquato, Piacenza, Northern Italy). Geobios, 49:329-347. https://doi.org/ 10.1016/j.geobios.2016 ...
... (zebroid) and the caballoid (true) horses. The most obvious dental differences between the two groups can be seen in the lower cheek teeth, namely, in the mor- phology of the metaconid-metastylid loops (the double knot) and in the shape of the entoflexids (i.e., linguaflexid sensu Skinner et al., 1972) ...Predrag Radović, Miloš Radonjić, Emmanuel Billia. "Pleistocene rhinoceros from Bogovina Cave: the first report of Stephanorhinus hundsheimensis Toula, 1902 (Mammalia, Rhinocerotidae) from Serbia" in Palaeontologia Electronica, Coquina Press (2020). https://doi.org/10.26879/985
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Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?
Стефан Петровић, Наталија Батоћанин (2020)У раду су приказани резултати испитивања серпентинисаних харцбургита Брђана (43°58'45.1" СГШ, 20°25'12.6" ИГД) и талкизираних харцбургита откривених у интервалу 429-559.8 m у истражној бушотини 330А/18 (44°07'33.2" СГШ, 20°30'28.5" ИГД) на Руднику. Узорци оба локалитета показују карактеристике резидуалних харцбургита из омотача, односно тектонита; лепидобластичне, бластозрнасте, или порфирокластичне структуре и масивне текстуре. Серпентинисани харцбургити и серпентинити Брђана су изграђени од серпентина, ретких реликата оливина и ортопироксена, акцесорног спинела, и веома ретког секундарног магнезита и магнетита. Најдоминантнији састојак (местимично гради и преко ...... Huge masses of serpentinites and serpentinized peridotites occur on both sides of the river Despotovica, being transgressively overlying by Middle Miocene sedimentary- volcanogenic series. The studied rocks are parts of the Maljen and Suvobor massifs, which are dominantly built by harzburgites. Lherzolite ...
... discusses results from both the field and the laboratory investigations. During field work representative samples were taken. Four samples were taken from the drilled borehole from Rudnik (interval 480-498 m) and two samples were taken from the surface in the locality Brđani. The laboratory examinations ...
... VELDE, 1988). The same authors determined that the mineral assemblage: talc + forsterite (which remained unaltered) is stable at least at 490 °C. The action of lower-temperature fluids (below 470 °C) would cause the alteration of olivine, too. Thus the serpentine would form along with the talc following ...Стефан Петровић, Наталија Батоћанин. "Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?" in Записници српског геолошког друштва, Српско геолошко друштво, Београд (2020)
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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)