Претрага
1318 items
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Efficiency and lifetime of medium voltage transformers
Snežana Aleksandrović, Vesna Damnjanović. "Efficiency and lifetime of medium voltage transformers" in XVI International Scientific – Professional Symposium, INFOTEH, Jahorina, 22. mart - 24. mart 2017., Istočno Sarajevo : Elektrotehnički fakultet, Univerzitet u Istočnom Sarajevu (2017)
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Primjena magnetometrijskih ispitivanja na arheološkom lokalitetu Nedeljkova humka
... Nedeljkova humka Mirko Petković, Vesna Cvetkov, Milorad Ignjatović, Dejan Naumov Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Primjena magnetometrijskih ispitivanja na arheološkom lokalitetu Nedeljkova humka | Mirko Petković, Vesna Cvetkov, Milorad Ignjatović ...
... prva dva me- tra, u rijetkim slučajevima do tri. Ako je anomalija arheološkog objekta 10 [nT] na rastojanju od 1 [m], onda ona na 2 [m] iznosi 1,25 [nT], a na rastojanju od 3 [m] je svega 0,37 [nT]. To je na granici detektabilosti za većinu instrumenata, što čini objekat nakon dva metra dubine ...
... PRIMJENA MAGNETOMETRIJSKIH ISPITIVANJA NA ARHEOLOŠKOM LOKALITETU NEDELJKOVA HUMKA Mirko Petković Rudarsko-geološki fakultet, Univerzitet u Beogradu Vesna Cvetkov Rudarsko-geološki fakultet, Univerzitet u Beogradu Milorad Ignjatović Muzej grada Beograda Dejan Naumov Rudarsko-geološki fakultet, U ...Mirko Petković, Vesna Cvetkov, Milorad Ignjatović, Dejan Naumov. "Primjena magnetometrijskih ispitivanja na arheološkom lokalitetu Nedeljkova humka" in Aktuelna interdisciplinarana istraživanja tehnologije u arheologiji jugoistočne Evrope: zbornik radova, Prvi skup Sekcije za arheometriju, arheotehnologiju, geoarheologiju i eksperimentalnu arheologiju Srpskog arheološkog društva, Beograd, 28.02.2020., Beograd : Srpsko arheološko društvo (2020)
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Atmospheric exposure vs burying: influences on damage intensity of built-in kersantite in the monument of the Small Staircase (Belgrade, Serbia)
Proučavan je efekat „zatrpanog kamena“ na intenzitet procesa degradacije prisutnih na kersantitu koji je ugrađen u spomenik Malo stepenište. Istraživanja su vršena na uzorcima stene iz kamenoloma i na oštećenim kamenim blokovima ugrađenim u spomenik. Dok su neki delovi stepeništa bili pod zemljom 90 godina, većina kamenih elemenata je bila izložena različitim uslovima sredine i antropogenim uticajima. Urađeno je detaljno mapiranje trenutnog stanja spomenika kako bi se istražio uticaj “zatrpavanja” i kompleksne geometrije spomenika na tip propadanja i variranje ...Nevenka Novaković, Predrag Dabić, Vesna Matović. "Atmospheric exposure vs burying: influences on damage intensity of built-in kersantite in the monument of the Small Staircase (Belgrade, Serbia)" in Environmental Earth Sciences, Springer Science and Business Media LLC (2023). https://doi.org/10.1007/s12665-023-10794-6
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2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem
... Vasiljević, Vesna Cvetkov Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] 2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem | Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov ...
... same profile line can have different resistivity scales. Part three of the profile line I has a length of 124 m (Figure 4). A high value resistivity zone with a length of 56 m (252 m to 308 m of the profile line) can be noticed and it represents most likely sand, gravel and other construction materials ...
... on a layer of sand. The base which meanders from 7.5 m to 12 m is composed of marl type rocks. That type of rock is porous but impermeable, in a hydrogeological sense (Šperl and Tročkova, 2008). Water level varies in the range of about 3 m, passing through the deposited waste of the surveyed subsurface ...Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov. "2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem" in Podzemni radovi, Centre for Evaluation in Education and Science (CEON/CEES) (2019). https://doi.org/10.5937/PodRad1934059S
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Палеомагнетски резултати из Тимочког магматског комплекса, Источна Србија
... Источна Србија Весна Лесић, Емо Мартон, Драган Лукић, Весна Цветков Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Палеомагнетски резултати из Тимочког магматског комплекса, Источна Србија | Весна Лесић, Емо Мартон, Драган Лукић, Весна Цветков | Knjiga ...
... bserved more to the west (Lesić et al., 2015) where the rotations are most likely of post‐20 Ma. 751 ЛИТЕРАТУРТА / REFERENCES Banješević, M., 2010. Upper Cretaceous magmatic suites of the Timok Magmatic Complex. Geološki ana‐ li Balkanskog poluostrva, 71, 13–22. Berza, T., Constantinescu ...
... rock by coercitive and unblocking tempe‐ rature properties. Geophys. Res. Lett., 17, 159–162. Luković, A., Zavašnik, J., Vulić, P., Banješević, M., Šarić, K., Cvetković, V., Pačevski, A., 2017. Hemoil‐ menite from andesite of the Late Cretaceous Timok Magmatic Complex, Serbia. 15th ...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)
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Утицај соларне активности на здравље човека
... соларне активности на здравље човека Каролина Ђукић, Весна Цветков, Весна Дамњановић Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Утицај соларне активности на здравље човека | Каролина Ђукић, Весна Цветков, Весна Дамњановић | VII Меморијални научни скуп из заштите ...
... skup iz zaštite životne sredine „Docent dr Milena Dalmacija“, 2019. UTICAJ SOLARNE AKTIVNOSTI NA ZDRAVLJE ČOVEKA Karolina Đukić1, Vesna Cvetkov 2, Vesna Damnjanović 3 1,2,3Univerzitet u Beogradu, Rudarsko-geološki fakultet, Đušina 7, Beograd karolina.djukic@rgf.bg.ac.rs Izvod ...
... as a Model System: Basics of Physical Epidemiology. International J. Environmental Research and Public Health, 7, 938-965. [11] Gordon, C., Berk, M. (2003). The effect of geomagnetic storms on suicide. South African Psychiatry Review, 6, 24-27. [12] Alexander, L.T., Suliman al Atawi, N. At al ...Каролина Ђукић, Весна Цветков, Весна Дамњановић. "Утицај соларне активности на здравље човека" in VII Меморијални научни скуп из заштите животне средине доцент др Милена Далмација Нови Сад, 01-02. април 2019, Природно-математички факултет, Департман за хемију, биохемију и заштиту животне средине (2019)
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3D modeling and monitoring of karst system as a base for its evaluation and utilization: a case study from eastern Serbia
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeSaša Milanović, Zoran Stevanović, Ljiljana Vasić, Vesna Ristić-Vakanjac. "3D modeling and monitoring of karst system as a base for its evaluation and utilization: a case study from eastern Serbia" in Environmental Earth Sciences, Springer Science and Business Media LLC (2013). https://doi.org/10.1007/s12665-013-2591-9
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Hydrographic and hydrological characterization of the Vodenička and Rosomačka rivers
Vesna Ristić Vakanjac, Marina Čokorilo Ilić, Dušan Polomčić, Dragoljub Bajić, Jelena Ratković (2017)The Visočica River rises in Bulgaria, on the Berovo Mountain. Its course in Bulgaria is 16.7 km long. It enters Serbia near the village of Donji Krivodol. Up to the village of Pakleštica, or the beginning of Lake Zavoj, its right-bank tributaries are the Krivodolštica, the Vodenička, the Rosomačka and the Dojkinačka. There are no left-bank tributaries. Among the tributaries, water levels and discharges are gauged only on the Dojkinačka River. The Vodenička had also been gauged but only ...... границом и то од Бегове куле (1668 м н. в.) на исток и југоисток преко Мучибабе (1719 м н. в.), Големог гувна (1580 м н. в.), Аџијине корије (1716 м н. в.), затим преко врхова са котама 1622 м н. в., 1613 м н. в., 1609 м н. в., 1423 м н. в., до врха са котом 1368 м н. в. код Равништа, где напушта државну ...
... гувна (955 м н. в.), Росомачког врха (1236 м н. в.), Игиног вртопа (1276 м н. в.), Чуке (1310 м н. в.), Тупанца (1602 м н. в.), а затим преко Штављака излази на државну границу између Србије и Бугарске код врха Добро јутро. Вододелница даље прати државну границу до Бегове куле (1658 м н. в.). Код ...
... генералним правцем на југ одвајајући слив Росомачке реке од Воденичке и то преко врха Црнак (1592 м н. в.), затим Мешковог рида (1351 м н. в.), Сенокошке чуке (1328 м н. в.), Љиљка (1326 м н. в.), Градишта (1191 м н. в.) па све до Славиње, где је и ушће Росомачке реке у реку Височицу. Облик слива је издуженог ...Vesna Ristić Vakanjac, Marina Čokorilo Ilić, Dušan Polomčić, Dragoljub Bajić, Jelena Ratković. "Hydrographic and hydrological characterization of the Vodenička and Rosomačka rivers" in Pirotski zbornik, Pirot : Narodna biblioteka Pirot (2017). https://doi.org/10.5937/pirotzbor1742001R
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Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic
Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković (2020)Artificial lift methods have applications in oil wells where oil production is no longer possible due to natural reservoir energy, so this necessary energy is added by introducing lift methods. In order to achieve optimum production, the selection of an artificial lift method is very important. This paper uses fuzzy logic as a mathematical and conceptual model for selection of the optimal artificial lift method. The outcome or IF-THEN rules, as the central part of the model, is based ...... Danilović, Vesna Karović Maričić, Branko Leković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic | Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić ...
... City, OK, USA, 1995; p. 8. 11. Alemi, M.; Jalalifar, H.; Kamali, G.; Kalbasi, M. A prediction to the best artificial lift method selection on the basis of TOPSIS model. J. Pet. Gas Eng. 2010, 1, 009–015. 12. Alemi, M.; Jalalifar, H.; Kamali, G.R.; Kalbasi, M.; Dev, P.R. A mathematical estimation for ...
... on ELECTRE model. J. Pet. Sci. Eng. 2011, 78, 193–200. [CrossRef] 13. Alemi, M.; Kalbasi, M.; Rashidi, F. A mathematical prediction based on SAW model. Middle East J. Sci. Res. 2013, 18, 1077–1082. 14. Alemi, M.; Kalbasi, M.; Rashidi, F. A mathematical prediction based on VIKOR model. Middle East J ...Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković. "Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic" in Energies, MDPI AG (2020)
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Палеогеографска реконструкција јадарског блокатоком млађег палеозоика
Весна Цветков (2018)... ка реконструкција јадарског блокатоком млађег палеозоика Весна Цветков Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Палеогеографска реконструкција јадарског блокатоком млађег палеозоика | Весна Цветков | Симпозијум Никола Пантић - човек и природа у спирали ...
... faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Весна Цветков1 Vesna Cvetkov ПАЛЕОГЕОГРАФСКА РЕКОНСТРУКЦИЈА ЈАДАРСКОГ БЛОКА ТОКОМ МЛАЂЕГ ПАЛЕОЗОИКА Јадарски блок се налази у западној Србији и ...
... Србија University of Belgrade - Faculty of Mining and Geology, Đušina 7, 11 000 Belgrade, Serbia e-mail: vesna.cvetkov@rgf.bg.ac.rs 2 Весна Цветков Да би се на правилан начин сагледала геодинамичка еволуција Јадарског блока током млађег палеозоика у простору Палеотетиса, потребно ...Весна Цветков. "Палеогеографска реконструкција јадарског блокатоком млађег палеозоика" in Симпозијум Никола Пантић - човек и природа у спирали времена (90 година од рођења научника), Зборник радова, Српско геолошко друштво (2018)
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Geochemical evaluation of dolostone deposits in Montenegro: Implications for potential industrial applications
Darko Bozovic, Vladimir Simic, Dragan Radulovic, Slobodan Radusinovic, Vesna Matovic, Anja Terzic (2024)This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability, and low costs. These subsystems are usually part of the thermal power plant’s coal supply system and ensure stable fuel supply. The model integrates various independent partial ...примарне сировине, минералогија, физичко-механичка својства, технолошка својства, наука о материјалимаDarko Bozovic, Vladimir Simic, Dragan Radulovic, Slobodan Radusinovic, Vesna Matovic, Anja Terzic. "Geochemical evaluation of dolostone deposits in Montenegro: Implications for potential industrial applications" in Science of Sintering, Bor, August 2024, National Library of Serbia (2024). https://doi.org/10.2298/SOS240701029B
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Characterization and Environmental Evaluation of Recycled Aggregates from Construction and Demolition Waste in Belgrade City Area (Serbia)
Filip Abramović, Miroslav Popović, Vladimir Simić, Vesna Matović, Radmila Šerović. "Characterization and Environmental Evaluation of Recycled Aggregates from Construction and Demolition Waste in Belgrade City Area (Serbia)" in Materials, MDPI AG (2024). https://doi.org/10.3390/ma17040820
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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 ...... Novaković, Vesna Matović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation | Maja Franković, Nevenka Novaković, Vesna Matović | ...
... built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation Maja Franković · Nevenka Novaković · Vesna Matović Received: 16 May 2014/ Accepted: 31 October 2014/ Published online: 4 December 2014 OO Springer-Verlag Berlin Heidelberg 2014 Abstract ...
... embedded in the facade of the gate. An average size of blocks is 50/25 cm. The surface area of south facade is 32 m? and the surface area of the stone built part of the north facade is 11.4 m?. The surfaces of some stone blocks are enscribed with graffiti markings from the Janissary corps from the ...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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A geophysical study of the Eastern Vardar Zone ophiolite: An overview
Dragana Đurić, Vesna Cvetkov, Vladica Cvetković. "A geophysical study of the Eastern Vardar Zone ophiolite: An overview" in Émile Argand Conference - 13th Workshop on Alpine Geological Studies - September 7th-18th 2017 in Serbia, Zlatibor Mts., Beograd:University of Belgrade - Faculty of Mining and Geology (2017): 31-31
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Petrološke i tehničke karakteristike amfibolita Potkondžila (Teslić)
Srećković Batoćanin Danica, Vasković N., Radulović S., Matović Vesna, Stević M.. "Petrološke i tehničke karakteristike amfibolita Potkondžila (Teslić)" in Zbornik radova-knjiga sažetaka/I Kongres geologa Bosne i Hercegovine, Tuzla, 21 – 23 oktobra 2015. godine (2015): 106-109
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Објекти геолошке баштине у сливу реке Височице
Гајић Виолета, Миловановић Драган, Вакањац Борис, Мандић М., Ристић Вакањац Весна. "Објекти геолошке баштине у сливу реке Височице" in Пиротски зборник no. 42, Пирот:Народнa библиотекa Пирот (2017): 209-224. https://doi.org/10.5937/pirotzbor1742209G
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Karst aquifer impact on the formation of surface runoff: case study of the Resava River catchment, Serbia
Marina Mitrašinović, Vesna Ristić Vakanjac, Veljko Marinović, Saša Milanović, Ljiljana Vasić, Dušan Polomčić (2022)The paper compares the flow regimes of the Resava River at the gauging stations of the Manasija Monastery (upper course) and the town of Svilajnac (lower course). The hydrological analysis encompasses a multiyear period of monitoring (1982–2020). The water budget and baseflow index are assessed for the catchment areas monitored by the Svilajnac station (683 km2) and the Manasija Monastery station (358k m2), considering the overall monitoring period and characteristic years. The results indicate that the specific runoff in ...... 2001 (Qav = 3.48 m?/s at Manasija Monastery and Qav = 4.35 m#/s at Svilajnac) and 2018 (Qav = 4.06 m?*/s at Manasija Monastery and Qav = 4.65 m?*/s at Svilajnac (Figs. 1a, 1b); • The ycar 1994 with a typical low discharge: Qav = 0.58 m*/s (at the Mansija Monastery) and 0.33 m?*/s (at Svilajnac) ...
... gauging station at the Manasija Monastery show that the upper catchment ofthe Rc- sava River conveys 3.31 m*/s or 104 million cubic Year Gauging station Wl Weaenow (10* m*) Wiawano „ (10* m*) Baseflow index 1994 Manasija Mon. 55.597 38.176 17.423 0.687 1994 Svilajnac 50.607 33.697 16.912 0.666 ...
... 2023-11-30 13:22:57 Karst aquifer impact on the formation of surface runoff: case study of the Resava River catchment, Serbia Marina Mitrašinović, Vesna Ristić Vakanjac, Veljko Marinović, Saša Milanović, Ljiljana Vasić, Dušan Polomčić Дигитални репозиторијум Рударско-геолошког факултета Универзитета ...Marina Mitrašinović, Vesna Ristić Vakanjac, Veljko Marinović, Saša Milanović, Ljiljana Vasić, Dušan Polomčić. "Karst aquifer impact on the formation of surface runoff: case study of the Resava River catchment, Serbia" in National Conference with International Participation “GEOSCIENCES 2022”, Sofia : Bulgarian geological society (2022)
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Can the dynamics of a subducted slab account for the Upper Cretaceous magmatism in the Sava-Vardar Zone and Timok Magmatic Complex? A Numerical Modelling Approach
Nikola Stanković, Ana Mladenović, Dejan Prelević, Vesna Cvetkov, Vladica Cvetković. "Can the dynamics of a subducted slab account for the Upper Cretaceous magmatism in the Sava-Vardar Zone and Timok Magmatic Complex? A Numerical Modelling Approach" in 16th Alpine Workshop, European Geosciences Union (2024)
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Environmental Aspects of Proposed Engineering Solution for Inter-basin Transfer in East Herzegovina
Čokorilo Marina, Stevanović Zoran, Ristić-Vakanjac Vesna. "Environmental Aspects of Proposed Engineering Solution for Inter-basin Transfer in East Herzegovina" in Engineering Geology for Society and Territory - Volume 5, Proceedings of the XII IAEG Congress, Torino 2014 5, :Springer International (2014): 515-519. https://doi.org/10.1007/978-3-319-09048-1_99
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Definition of the size of the Krupac spring drainage area (Carpatho-Balkanide Arch, Southern Serbia) for a Karst Aquifer Water Balance
Ristić-Vakanjac Vesna, Prohaska Stevan, Polomčić Dušan. "Definition of the size of the Krupac spring drainage area (Carpatho-Balkanide Arch, Southern Serbia) for a Karst Aquifer Water Balance" in Conference on Water observation and information system for decision support, 25-29 May 2010 Ohrid, Republic of Macedonia, Skopje, Macedonia: Faculty of civil engineering (2010): 1-10