Претрага
178 items
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Early Senonian radiolarian microfauna and biostratigraphy from the Western Vardar Zone (Western Serbia)
Nevenka Djerić, Nataša Gerzina, Violeta Gajić, Nebojša Vasić. "Early Senonian radiolarian microfauna and biostratigraphy from the Western Vardar Zone (Western Serbia)" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2009). https://doi.org/10.2478/v10096-009-0004-5
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Концепт расположивости при дефинисању ефикасног одржавања помоћне механизације на површинским коповима
Radiša D. Đurić (2016-05-30)Оцена расположивости представља основну компоненту уинжењерском управљању опремом. Расположивост је свеобухватни концепткоји представља меру употребног квалитета техничких система, који садржичитаву серију парцијалних индикатора који се односе на време у раду ивреме у отказу система као и на његову функционалну погодност. Овадисертација даје структурну анализу парцијалних индикатора као и развојмодела њихове синтезе на ниво расположивости. Поменути подаци имајухибридни карактер (измерени и експертски добијени) и њихова интеграцијаи синтеза је остварена коришћењем фази пропозиције и фази закључивања.Овакав приступ омогућава оцену техничког система ...управљање опремом, инжењерство одржавања,расположивост, фази закључивање, прикупљање података, булдозер... дефиниција изражава као [Тодоровић, 1993]: где је t време трајања поступка одржавања, а f(t) функција густине вероватноће овог времена застоја због одржавања техничког средства. Функција погодности одржавања као функција вероватноће, представља монотоно растућу функцију [Тодоровић, 1993]. У време ван ...
... Commission. International standard – Dependability management ISO-IEC 300. http://www.iec.ch/ Јовичић, С., Тодоровић, Ј., 1996. Сигурност функционисања – Стандард IEC TC 56, Београд Тодоровић, Ј., Зеленовић, Д., 1978. Ефективност система у машинству, Нови Сад, Београд Papic, L., Milovanovic, Z.N. ...
... промене стања биће: )( )()( )( 2 22 tNt ttNtN t Графички, интензитет отказа може да се представи у зависности од времена [Тодоровић, 1993], кривом на слици 2.2: Слика 2.2. Функција густине интервала у отказу Подручје уграђених отказа Подручје интензивирања отказаПодручје ...Radiša D. Đurić. "Концепт расположивости при дефинисању ефикасног одржавања помоћне механизације на површинским коповима" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-05-30)
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Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit
Sanja Bajić, Dragoljub Bajić, Branko Glušćević, Radmila Gaćina. "Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit" 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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Hydrological characteristics of the Timok River, Eastern Serbia
Žugić Drakulić Nataša, Vasić Nebojša, Mihajlov Anđelka, Štrbac Snežana. "Hydrological characteristics of the Timok River, Eastern Serbia" in 9th International Symposium on Environmental Geochemistry, Aveiro, Portugal: (2012): 296-296
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Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia
Paleontology, Stratigraphy, Economic Geology, Geochemistry and Petrology, Geology, Geophysics, Geotechnical Engineering and Engineering Geology... Bragina, Nevenka Đerić, Nataša Gerzina-Spajić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia | Nikita Bragin, Liubov Bragina, Nevenka Đerić, Nataša Gerzina-Spajić | Geološki ...
... E-mail: bragin.neomail.ru ?žUniversity of Belgrade, Faculty of Mining and Geology, Serbia. NIKITA YU. BRAGIN, LIUBOV G. BRAGINA, NEVENKA DJERIĆ & !NATAŠA GERZINA SPAJIĆ Introduction The Triassic hemipelagic deposits of moderate thickness (up to several hundred meters), which are represented by ...
... radiolarians and filaments. Thin layers of fine-grained turbiditic limestone are rela- NIKITA YU. BRAGIN, LIUBOV G. BRAGINA, NEVENKA DJERIĆ & !NATAŠA GERZINA SPAJIĆ tively rare, while shallow-water, platform-derived sediments are practically missing. It was concluded that cherty limestones ...Nikita Bragin, Liubov Bragina, Nevenka Đerić, Nataša Gerzina-Spajić. "Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia" in Geološki anali Balkanskoga poluostrva (2019). https://doi.org/10.2298/GABP1901017B
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Structural and microstructural study of brookite based TiO2 nanocomposites with carbon black (C)
Structural and microstructural properties of TiO2-based nanocomposites with carbon black (C), synthesized by sol-gel-hydrothermal method, have been studied by XRPD and Raman scattering. Detailed size-strain analyses of XRPD and Raman scattering results are presented in order to investigate the influence of C content on brokite and anatase phase formation. The XRPD size-strain analyses have resulted in reliable structure and microstructure results for both anatase and brookite and their relative abundance ratio has been refined by Rietveld method. The brookite ...Aleksandar Kremenović, Mirjana Grujić-Brojčin, Nataša Tomić, Maja Šćepanović. "Structural and microstructural study of brookite based TiO2 nanocomposites with carbon black (C)" in The European Powder Diffraction Conference (EPDIC) Book of Abstracts, Šibenik, 31 May - 3 June 2022, EPDIC (2022)
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Differently shaped nanocrystalline (Fe, Y)3O4 and its adsorption efficiency toward inorganic arsenic species
Biljana P Dojčinović, Boštjan Jančar, Lotfi Bessais, Aleksandar Kremenović, Nataša P Jović-Jovičić, Predrag T Banković, Dalibor M Stanković, Miloš Ognjanović, Bratislav V Antić (2019)Herein we report effects of partial substitution of Fe3+ by Y3+ in magnetite (Fe3O4) on morphology and inorganic arsenic species adsorption efficiency of the Fe3−xYxO4 nanoparticles formed. The series of Fe3−xYxO4 (x=0.00, 0.042 and 0.084, labeled as Y00, Y05 and Y10, respectively) was synthesized using co-precipitation followed by microwave-hydrothermal treatment (MW) at 200°C. With increase of yttrium content(xvalue), both the morphological inhomogeneity of the samples and the fraction of spinel nanorods as compared to spinel pseudospherical particles increased. By ...Biljana P Dojčinović, Boštjan Jančar, Lotfi Bessais, Aleksandar Kremenović, Nataša P Jović-Jovičić, Predrag T Banković, Dalibor M Stanković, Miloš Ognjanović, Bratislav V Antić. "Differently shaped nanocrystalline (Fe, Y)3O4 and its adsorption efficiency toward inorganic arsenic species" in Nanotechnology, IOP Publishing (2019). https://doi.org/10.1088/1361-6528/ab3ca2
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Polycyclic aromatic hydrocarbons, sulfur- and oxygen heterocycles released by pyrolysis of coal from Bogovina East field, Serbia
Mitrović Danica, Đoković Nataša, Vuković Nikola, Životić Dragana, Stojanović Ksenija. "Polycyclic aromatic hydrocarbons, sulfur- and oxygen heterocycles released by pyrolysis of coal from Bogovina East field, Serbia" in 15th European Meeting on Environmental Chemistry, EMEC15, Brno, Czech Republic, December 3-6, 2014, Book of Abstracts, Brno, Czech Republic:Brno University of Technology (2014)
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Jurassic - Early Cretaceous Рadiolarians of the Danubian Nappes (Eastern Serbia)
Đerić Nevenka, Goričan Špela, Kukoč Duje, Gerzina Nataša, Rabrenović Dragoman. "Jurassic - Early Cretaceous Рadiolarians of the Danubian Nappes (Eastern Serbia)" in Оптимално истраживање и одрживо коришћење геолошких ресурса : зборник радова XVI конгреса геолога Србије, Donji Milanovac, 22-25.05.2014. = Optimal Reserach and Sustainable Usage of the Geological Resources : proceedings of the XVI Serbian Geologcal, Belgrade:Srpsko geološko društvo (2014): 142-144
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Palaeoenvironmental reconstruction of the Kovin lignite deposit, Serbia
Mitrović Danica, Đoković Nataša, Životić Dragana, Bechtel Achim, Stojanović Ksenija. "Palaeoenvironmental reconstruction of the Kovin lignite deposit, Serbia" in ICCP Program & Abstract Book. 67th Annual Meeting of the International Committee for Coal and Organic Petrology, September 5-11. 2015,, Potsdam, Germany:Schriftenreihe der Deutschen Gesellschaft für Geowissenschaften Heft 87 (2015): 122-123
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Jurassic – Early Cretaceous radiolarian stratigraphy of the Danubian nappes (eastern Serbia)
Đerić Nevenka, Goričan Špela, Gerzina Nataša, Jach Renata, Kukoč Duje. "Jurassic – Early Cretaceous radiolarian stratigraphy of the Danubian nappes (eastern Serbia)" in International conference on Fossil and Recent Radiolarians - INTERRAD 14, 22-26. 03. 2015, Antalya, Turkey, Radiolaria Newsletter 35, Antalya: (2015): 86-87
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Petrološke karakteristike dunavskog šljunka (Beograd – Zemun)
Miloš Mihajlović (2024)Dunavski šljunak u okolini Zemuna karakterističan je za obalne rečne naslage formirane dugotrajnim procesima erozije i transporta materijala koje reka Dunav nosi sa različitih područja uzvodno. Ispitivanja šljunka sa lokacije „Gemax” su pokazala je šljunak uglavnom zaobljen, najčešće u rasponu od nekoliko milimetara do nekoliko centimetara u prečniku. Kako Dunav nosi materijal sa velikog sliva, ovaj šljunak sadrži raznovrsne sastojke sa dominacijom kvarca i odlomaka stena visokosilicijskog sastava. Mineraloško-petrografska ispitivanja pokazala su prisustvo klasta različitog sastava, čime je potvrđena ...... Laskarev (1922, 1926, 1932, 1938) koji je bio utemeljivač geologije kvartara okoline Beograda, zatim Gorjanović (1921, 1923), Zloković (1922, 1926), Todorović (1928) i dr. Najviše geoloških podataka šireg područja istraživanja potiče iz perioda posle drugog svetskog rata. Ovi radovi se najviše odnose ...
... pliocen Srbije i susednih oblasti. Posebna izdanja knj. CLXXXVII, Geol. inst. knj. 2, Beograd. (Preuzeto iz literature navedene pod r. br. 2) 22. Todorović, D., 1928: Problem černozema u okolini Beograda. Geol. anali B. P., knj. VIII, sv. 2. Beograd. (Preuzeto iz literature navedene pod r. br. 18) ...Miloš Mihajlović. Petrološke karakteristike dunavskog šljunka (Beograd – Zemun), 2024
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Numerical and experimental diagnostic of dynamic behavior of the rotor-excavator construction
Maneski Taško, Jovančić Predrag, Ignjatović Dragan, Milošević Mitić Vesna, Trišović Nataša. "Numerical and experimental diagnostic of dynamic behavior of the rotor-excavator construction" in Third Serbian (28th Yu) Congress on Theoretical and Applied Mechanics 1, Vlasina Lake:Serbian society of mechanics (2011): 629-636
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Upper Cretaceous geosites on Golija Mountain – objects of geoheritage
Grujičić-Tešić Ljiljana, Rabrenović Dragoman, Kovačević Jovan, Gerzina Nataša, Đerić Nevenka. "Upper Cretaceous geosites on Golija Mountain – objects of geoheritage" in Geologia Croatica 69 no. 3, Zagreb:Croatian Geological Survey (2016): 337-345. https://doi.org/doi: 10.4154/gc.2016.28
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Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential
The study presented in this paper assessed the multidisciplinary approach of geothermal potential in the area of the most southeastern part of the Pannonian basin, focused on resources utilization. This study aims to present a method for the cascade use of geothermal energy as a source of thermal energy for space heating and cooling and as a resource for balneological purposes. Two particular sites were selected—one in a natural environment; the other within a small settlement. Geothermal resources come ...геотермална енергија, Панонски басен, геотермална каскада, енергетска ефикасност, бањски центри, балнеологија, биоклиматска архитектура, стратегије пасивног дизајнирања, модуларни објекти... Potential Nataša Čuković-Ignjatović, Ana Vranješ, Dušan Ignjatović, Dejan Milenić, Olivera Krunić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential | Nataša Čuković- ...
... www.dr.rgf.bg.ac.rs applied sciences Article Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential Nataša Ćuković Ignjatović 1,* , Ana Vranješ 2,*, Dušan Ignjatović 1, Dejan Milenić 2 and Olivera Krunić 2 ���������� ������� Citation: Ćuković ...Nataša Čuković-Ignjatović, Ana Vranješ, Dušan Ignjatović, Dejan Milenić, Olivera Krunić. "Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential" in Applied Sciences-Basel, МDPI (2021). https://doi.org/10.3390/app11062691
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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
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Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics
Agate veins and nodules occur in the Lece Volcanic Complex (Oligocene-Miocene) situated in the south of Serbia and occupying an area of 700 km2. This volcanic complex is composed predominantly of andesites, with sporadic occurrences of andesite-basalts, dacites and latites, and features agate formations that have been very little investigated. This study focuses on five selected agate occurrences within the Lece Volcanic Complex, employing optical microscopy, scanning electron microscopy (SEM), X-ray powder diffraction analysis, inductively coupled plasma mass spectrometry ...Zoran Miladinović, Vladimir Simić, Nenad Nikolić, Nataša Jović Orsini, Milena Rosić. "Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics" in Minerals, MDPI AG (2024). https://doi.org/10.3390/min14050511
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New radiolarian data from the Jurassic ophiolitic mélange of Avala Mountain (Serbia, Belgrade Region)
Nikita Bragin, Liubov Bragina, Nataša Gerzina Spajić, Nevenka Đerić, Stefan Schmid. "New radiolarian data from the Jurassic ophiolitic mélange of Avala Mountain (Serbia, Belgrade Region)" in Swiss Journal of Geosciences (2019)
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Hidrogeohemija prirodnih radioaktivnih elemenata u podzemnim vodama Srbije
Marina D. Ćuk (2018-02-23)Osnovni cilj doktorske disertacije predstavljao je definisanje prirodnih koncentracija (engl. background values) U, Th, i K u podzemnim vodama, i definisanje hidrogeohemijskih uslova koji utiču na distribuciju navedenih elemenata u podzemnim vodama...prirodni radioaktivni elementi, podzemna voda, geohemijske sredine, hidrogeohemijski uslovi, neparametarska statistička analiza, logistički model, hidrohemijsko modeliranje... Conference, Dallas, pp. 157 – 65. 155. Todorović M, Papić P. 2016. Hidrohemijski podaci ispod granice detekcije u hidrogeološkim istraživanjima. Zbornik radova, XV srpski simpozijum o hidrogelogiji. Rudarsko-geološki fakultet, Beograd pp. 375 – 380. 156. Todorović M, Štrbački J, Ćuk M, Andrijašević ...
... dugujem prof. dr Miroslavu M. Vrviću, dipl. hem, Zoranu Daniloviću, dipl. inž. geol., Zorici Marijanović, hem. tehn., kao i mojim koleginicama Maji Todorović, Jani Štrbački, Ani Mladenović, Jovani Šišović i kolegama Jakovu Andrijaševiću i Marku Belotiću. HIDROGEOHEMIJA PRIRODNIH RADIOAKTIVNIH ...
... ti (Joksić et al. 2007, Nikić et al. 2008, Kovačević et al. 2009, Papić et al. 2008-2011, Ćuk et al. 2013, 2014, Joksimović and Pavlović 2014, Todorović et al. 2015). Radioaktivne osobine podzemnih voda i sadržaj prirodnih radioaktivnih elemenata U, Th i K, predstavljaju važne trasere pri izučavanju ...Marina D. Ćuk. "Hidrogeohemija prirodnih radioaktivnih elemenata u podzemnim vodama Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-02-23)
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Investigation of synergetic effect of co-pyrolysis of lignite and high density polyethylene (HDPE)
Gajica Gordana, Đoković Nataša, Mitrović Danica, Kojić Ivan, Životić Dragana, Stojanović Ksenija (2014)Gajica Gordana, Đoković Nataša, Mitrović Danica, Kojić Ivan, Životić Dragana, Stojanović Ksenija. "Investigation of synergetic effect of co-pyrolysis of lignite and high density polyethylene (HDPE)" in Proceedings of the XVI Geological Meeting of the Republic of Komi. Part III. Geology and mineral resources of European North-West of the Russia, Siktivkar, Russia, April 15-17, 2014, Siktivkar, Russia:Geologica institut Komi NC UrO RAN (2014): 138-140