Претрага
690 items
-
Model upravljanja investicionim projektima otvaranja površinskih kopova uglja
Cvjetko P. Stojanović (2015-04-27)Brze promene u okruženju pred rukovodioce postavljaju mnogobrojne zahteve,pre svega, one koji se tiču ostvarenja ciljeva u zadatom vremenu i raspoloživimsredstvima što zahteva fleksibilan pristup u organizovanju aktivnosti i efikasnost unjihovom sprovođenju.Upravljanje projektima, bilo koje vrste, suštinski, predstavlja veoma složenproces odlučivanja uslovljen velikim brojem ulaznih faktora. Ti faktori treba daomoguće fokusiranje na prioritete i ciljeve, praćenje realizacije, fleksibilnost uprevazilaženju teškoća, prilagođavanje promenama, te kontrolu nad ostvarenimrezultatima. Ovakav način upravljanja zahteva korišćenje proverenih tehnika i alata tetimski rad angažovanih na ...Cvjetko P. Stojanović. "Model upravljanja investicionim projektima otvaranja površinskih kopova uglja" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-04-27)
-
Model upravljanja investicionim projektima otvaranja površinskih kopova uglja
Cvjetko P. Stojanović (2015-04-27)Brze promene u okruženju pred rukovodioce postavljaju mnogobrojne zahteve,pre svega, one koji se tiču ostvarenja ciljeva u zadatom vremenu i raspoloživimsredstvima što zahteva fleksibilan pristup u organizovanju aktivnosti i efikasnost unjihovom sprovođenju.Upravljanje projektima, bilo koje vrste, suštinski, predstavlja veoma složenproces odlučivanja uslovljen velikim brojem ulaznih faktora. Ti faktori treba daomoguće fokusiranje na prioritete i ciljeve, praćenje realizacije, fleksibilnost uprevazilaženju teškoća, prilagođavanje promenama, te kontrolu nad ostvarenimrezultatima. Ovakav način upravljanja zahteva korišćenje proverenih tehnika i alata tetimski rad angažovanih na ...Cvjetko P. Stojanović. "Model upravljanja investicionim projektima otvaranja površinskih kopova uglja" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-04-27)
-
Флотабилност халкопирита из полиметаличне руде рудника „Рудник”
Ђурица Н. Никшић (2022)The doctoral dissertation Chalcopyrite flotability from polymetallic "Rudnik" mine ore consists of two parts. The first part is a general part in which the theoretical foundations of the flotation concentration process, the flotation properties of chalcopyrite, the influence of certain flotation reagents and the mechanism of action on the flotation properties of chalcopyrite are presented. This part also describes the process of flotation concentration of polymetallic ore from the "Rudnik" mine. The second part is ...Ђурица Н. Никшић. Флотабилност халкопирита из полиметаличне руде рудника „Рудник”, Београд : [Ђ. Никшић], 2022
-
Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining
Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović (2019)... energies Article Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining Ivan Jankovic 1, Stevan Djenadic 2, Dragan Ignjatovic 2, Predrag Jovancic 2, Tomislav Subaranovic 2 and Ivica Ristovic 2,* 1 Ministry of Mining and Energy, 11000 Belgrade, Serbia; ivan.jankovic@mre ...
... es energies (mort, Article Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining Ivan Jankovic 1, Stevan Djenadic 7, Dragan Ignjatovic *, Predrag Jovancic 2, Tomislav Subaranovic 2 and Ivica Ristovic *’* 1 2 Ministry of Mining and Energy, 11000 Belgrade, Serbia; ivan. ...Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović . "Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining" in Energies, MDPI (2019). https://doi.org/https://doi.org/10.3390/en12122245
-
Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals
Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić (2020)As the number of poorly soluble drugs is increasing, nanocrystals have become very interesting due to wide range of application possibilities. Curcumin was used as a model active ingredient in this work. Even though it has many proven positive effects, due to its physicochemical issues, its possibilities have not been fully exploited. The goal of this work was to select optimal conditions for a top-down method for curcumin nanosuspension production, and to perform their comprehensive characterization applying complementary methodologies: ...Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić. "Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals" in Review on advanced materials science, Walter de Gruyter GmbH (2020). https://doi.org/10.1515/rams-2020-0043
-
Structural, morphological and up-converting luminescence characteristics of nanocrystalline Y2O3:Yb/Er powders obtained via spray pyrolysis
Lojpur Vesna, Mančić Lidija, Vulić Predrag, Dramićanin Miroslav D., Rabanal Maria Eeugenia, Milošević Olivera (2014)Lojpur Vesna, Mančić Lidija, Vulić Predrag, Dramićanin Miroslav D., Rabanal Maria Eeugenia, Milošević Olivera. "Structural, morphological and up-converting luminescence characteristics of nanocrystalline Y2O3:Yb/Er powders obtained via spray pyrolysis" in Ceramics International 40 no. 2, Faenza, Italy:Ceramurgia (2014): 3089-3095. https://doi.org/10.1016/j.ceramint.2013.10.002
-
Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders
Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić (2023)... Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders | Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja ...
... P-43 INFLUENCE OF Ag DOPING ON THE MORPHOLOGICAL AND MAGNETIC PROPERTIES IN CUO NANOPOWDERS Maria Čebela!?, Uroš Čakar", Vesna Lojpurl,Maja Milošević“, Sanja Krstićl,Vladimir Dodevskil, Milena Rosić! Iinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University ...Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić. "Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders" in Programme ; and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia , Beograd : Institut za multidisciplinarna istraživanja, (2023)
-
Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders
Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica (2023)... Измењено: 2023-10-17 09:14:47 Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica Дигитални репозиторијум Рударско-геолошког факултета У ...
... Универзитета у Београду [ДР РГФ] Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders | Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica | Programme and the book of abstracts 7th Conference of The ...Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica. "Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders" in Programme and the book of abstracts 7th Conference of The Serbian Society for Ceramic Materials 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia , Beograd : Institut za multidisciplinarna istraživanja (2023)
-
Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure
Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica (2023)... Измењено: 2023-10-17 09:28:16 Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica Дигитални репозиторијум Рударско-геолошког факултета У ...
... Универзитета у Београду [ДР РГФ] Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure | Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica | Book of Abstracts / 26th Congress of SCTM with international par ...
... XPS, HR-TEM, natural radioactivity ICTM P-3 Investigation of CoooHoo. MoOu Nanopowders Obtained by Glycine Nitrate Procedure M. Rosić" , M. Milošević?, M. Čebela", V. Dodevski", V. Lojpur*, R. Ljupkovićiand A. Zarubicad “ Laboratory for Material Science, Institute of Nuclear Sciences „, Pinča“ ...Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica. "Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure" in Book of Abstracts / 26th Congress of SCTM with international participation, 20-23 September 2023, Ohrid, R. Macedonia, Skopje : Society of Chemists and Technologists of Macedonia (2023)
-
Examination and characterization of nanostructured Co0.9Ho0.1MoO4
Милена Росић, Маја Милошевић, Мариа Чебела, Владимир Додевски, Весна Лојпур, Марија Васић, Александра Зарубица (2023)... Росић, Маја Милошевић, Мариа Чебела, Владимир Додевски, Весна Лојпур, Марија Васић, Александра Зарубица Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Examination and characterization of nanostructured Co0.9Ho0.1MoO4 | Милена Росић, Маја Милошевић, Мариа Чебела ...Милена Росић, Маја Милошевић, Мариа Чебела, Владимир Додевски, Весна Лојпур, Марија Васић, Александра Зарубица. "Examination and characterization of nanostructured Co0.9Ho0.1MoO4" in Serbian Ceramic Society Conference - Аdvanced ceramics and application XI New Frontiers in Multifunctional Material Science and Processing Program and the Book of Abstracts, Serbian Academy of Sciences and Arts, Serbia, Belgrade, 18-20. September 2023., Belgrade : Serbian Ceramic Society (2023)
-
Development of an integrated model for open-pit-mine discontinuous haulage system optimization
Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović (2024)Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović . "Development of an integrated model for open-pit-mine discontinuous haulage system optimization" in Sustainability, MDPI (2024). https://doi.org/10.3390/su16083156
-
Утицај похабаности резних елемената роторног багера на ниво вибрација погона за копање
Филип Милетић (2023)У докторској дисертацији је анализиран утицај похабаности резних елемената роторног багера на потрошњу електричне енергије и ниво амплитуде вибрација погона за копање. Креиран је модел који у функцији стања резних елемената дефинише зависност разматраних физичких феномена. За развој модела примењене су једначине теорије осцилација и Ватметарска метода [1] којом се одређује потрошња електричне енергије. За верификацију модела извршена су мерења на роторном багеру SRs2000.32/5+VR ангажованом на откопавању откривке на површинском копу Тамнава–Западно поље. Обављено је пет мерења. Резни елементи су ...Филип Милетић. Утицај похабаности резних елемената роторног багера на ниво вибрација погона за копање, Београд : [Ф. Милетић], 2023
-
The subthermal potential of karstic groundwater of Kučaj–Beljanica region in Serbia estimated by the multivariate analysis
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeLjiljana Vasić, Dragana Ž. Živojinovic, Vladana Rajaković-Ognjanović, Huang Fen, Cao Jianhua. "The subthermal potential of karstic groundwater of Kučaj–Beljanica region in Serbia estimated by the multivariate analysis" in Environmental Earth Sciences, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s12665-021-09392-1
-
Proračun osnovnih mehanizama na rotornom bageru ShRs 1300 na PK Polje E
Luka Nikolić (2024)Površinska eksoloatacija ležišta mineralnih sirovina, a posebno uglja (lignita) vrši se primenom različitih rudarskih mašina. U zavisnosti od tipa ležišta, rudarsko-geoloških uslova, ekonomske analize i sl. koriste se sistemi sa kontinualnim ili diskontinualnim načinom rada.Kod kontinualnih sistema, primenjuju se kompleksne rudarske mašine kod kojih se proces odvija neprekidno odnosno bez ciklusa utovara, transporta i odlaganja i najčešće rade u sve tri smene. Rotorni bageri i bageri vedričari, transporteri sa gumenom trakom, odlagači ili deponijske mašine čine tkz BTO ili ...... 1. Dragan Ignjatović, Predrag Jovančić, Mašine ı uređaji za površinsku eksploataciju i transport, zbirka zadataka, Univerzitet u Beogradu, Rudarsko — geološki fakultet (2012) Dragan Ignjatović, Mašine za površinsku eksploataciju, Univerzitet u Beogradu, Rudarsko-geološki fakultet Dragan Ignjatović ...
... osnovnih mehanizama na rotornom bageru ShRs 1300 na PK Polje E Kandidat: Mentor: Luka Nikolić R85-19 Prof.dr. Dragan Ignjatović U Beogradu, jul 2024. Komisija: 1. prof. dr Dragan Ignjatović, mentor Univerzitet u Beogradu, Rudarsko-geološki fakultet 2. prof. dr Predrag Jovančić, član komisije ...Luka Nikolić. Proračun osnovnih mehanizama na rotornom bageru ShRs 1300 na PK Polje E, 2024
-
Structural dynamic modification of a tubular collector
Petrović Ana, Trišović Nataša, Maneski Taško, Golubović Zoran, Milošević-Mitić Vesna, Wei Li2, Grozdanović Ines (2015)Petrović Ana, Trišović Nataša, Maneski Taško, Golubović Zoran, Milošević-Mitić Vesna, Wei Li2, Grozdanović Ines. "Structural dynamic modification of a tubular collector" in Proceedings of the 5th International Congress of Serbian Society of Mechanics, Arandjelovac: (2015)
-
Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer
Pavle Tančić, Maja Milošević, Darko Spahić, Bojan Kostić, Aleksandar Kremenović, Maja Poznanović-Spahić, Jovan Kovačević (2023)Pavle Tančić, Maja Milošević, Darko Spahić, Bojan Kostić, Aleksandar Kremenović, Maja Poznanović-Spahić, Jovan Kovačević. "Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer" in Mineralogical Magazine (2023). https://doi.org/10.1180/mgm.2023.88
-
Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal
Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)... Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР ...
... Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low- Rank Coal | Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović | Polymers | 2021 | | 10.3390/polym13050759 http://dr.rgf.bg.ac.rs/s/repo/item/0005539 ...
... s of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal Ivan Kojić 1 , Achim Bechtel 2 , Nikoleta Aleksić 3, Dragana Životić 3, Snežana Trifunović 4, Gordana Gajica 5 and Ksenija Stojanović 4,* ���������� ������� Citation: Kojić, I.; Bechtel, A.; Aleksić ...Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović. "Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal" in Polymers, MDPI AG (2021). https://doi.org/10.3390/polym13050759
-
Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)
Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović. "Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)" in Challenges : Sustainable Land Management – Climate Change, Advances in Geoecology 43, Catena Verlag GMBH (2014)
-
Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications
The Vardar-Tethyan mega-suture between the Eurasian and Adria (Gondwana) margins comprises remnants of oceanic lithosphere of Neotethys and distal parts of the adjacent continental margins including unconformable Late Cretaceous sedimentary cover and Cenozoic igneous rocks of post-obduction age. This study provides kinematic constraints for displacements and rotations affecting the Serbian part of the West Vardar and Jadar-Kopaonik units after the closure of the Neotethyan (= Sava) Ocean. The targets of the paleomagnetic research were Late Cretaceous sediments representing an ...... Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications | Vesna Lesić, Emo Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov ...
... rs Clockwise vertical-axis rotation in the West Vardar zone of Serbia: tectonic implications Vesna Lesić1 • Em}o Márton2 • Violeta Gajić3 • Dragana Jovanović1 • Vesna Cvetkov4 Received: 28 May 2018 / Accepted: 23 September 2018 / Published online: 24 October 2018 � Swiss Geological Society 2018 ...
... southern Pannonian basin. Acknowledgements We thank Milena Dunčić for age determinations of sediment samples. We also thank Nada Vasković and Dragan Milovanović for guiding us in the field and Vladica Cvetković for the discussions concerning the petrology and geochemistry of the studied areas ...Vesna Lesić, Emo Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov. "Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications" in Swiss Journal of Geosciences, Basel : Springer International Publishing (2018). https://doi.org/10.1007/s00015-018-0321-8
-
Analysis and visualization of geophysical well-logging data from closely spaced boreholes
Geophysical logging measurements for determining the condition of the rock mass on the dam profile and locating the predisposed directions of water circulation and loss from the reservoir were conducted in four boreholes distributed at a close distance. The survey was carried out in a typical karst terrain, which is an additional challenge for defining the geological model, especially in terms of water retention. That kind of data set provides an excellent opportunity for a new approach to analysis ...... Nikolic, Yasemin Levanteli CAVE IN MIROSAVE GORGE - A NEW LATE PLEISTOCENE SITE OF THE SMALL MAMMAL FAUNA IN CENTRAL SERBIA Katarina Bogićević, Dragana Đurić, Draženko Nenadić, Mihailo Jovanović, 4leksandra Savković, Pesna Dimitrijević, Luka Jović, Tamara Dogandžić, PA3BOJ HA MHOILIEHCKATA CEPMHJA ...
... OF STRATIGRAPHY CHARACTERISTICS OF THE MAIN ROCK UNITS IN THE BOR METALLOGENIC ZONE AND THEIR LINK WITH MINERALIZATION Miodrag Banješević, Dragana Bosić PYRITE AND MARCASITE IN THE LOW-SULFIDATION SARNAK GOLD DEPOSIT, SE BULGARIA. CONSTRAINTS ON THE BEHAVIOR OF ARSENIC AND GOLD DURING ...Branislav Sretković, Ivana Vasiljević, Dimitry Sidorov - Biryukov. "Analysis and visualization of geophysical well-logging data from closely spaced boreholes" in Vth Congress of the Geologists of the Republic of North Macedonia, Ohrid, Republic of North Macedonia, September 27-28, 2024, Macedonian Geological Society (2024)