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811 items
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Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija
Aleksandar D. Krstić, Aleksandar Đ. Lolić, Marija A. Ilić, Aleksandar M. Mijatović, Snežana J. Zlatanović, Zoran P. Nedić, Vesna M. Pavelkić (2015)Biougalj se dobija pirolizom iz organskog otpada. Smatra se ,,modifikatorom'' zemljišta i koristi se kao đubrivo i kao rezervoar za skladištenje ugljenika. Kvantifikacija funkcionalih grupa je važna zbog hemijske reaktivnosti biougljeva koji imaju uticaj na svojstva zemljišta. U istraživanju su korišćena 3 uzorka biouglja različitog porekla i jedan referentni, aktivni ugalj. Sadržaj kiselih funkcionalnih grupa je određivan titracijom po Boehm-u na dva načina: uvođenje N2 tokom titracije i tretman sa BaCl2. Optimizovan je način pripreme tri Boehm ova rastvora ...... M. Mijatović, Snežana J. Zlatanović, Zoran P. Nedić, Vesna M. Pavelkić | 52. savetovanja Srpskog hemijskog društva | 2015 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005644 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...Aleksandar D. Krstić, Aleksandar Đ. Lolić, Marija A. Ilić, Aleksandar M. Mijatović, Snežana J. Zlatanović, Zoran P. Nedić, Vesna M. Pavelkić. "Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija" in 52. savetovanja Srpskog hemijskog društva, Srpsko hemijsko društvo (2015)
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Paleomagnetic study of Jurassic-Early Cretaceus sediments in the Danibicum of Eastern Serbia
... Cvetkov, Emo Marton, Vesna Lesić, Dragana Tomić | I Kongres geologa u Bosni i Hercegovini sa međunarodnim učešćem | 2015 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005702 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...Vesna Cvetkov, Emo Marton, Vesna Lesić, Dragana Tomić. "Paleomagnetic study of Jurassic-Early Cretaceus sediments in the Danibicum of Eastern Serbia" in I Kongres geologa u Bosni i Hercegovini sa međunarodnim učešćem, Udruženje geologa u Bosni i Hercegovini (2015)
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Ventex: an expert system for mine ventilation systems analysis
roblems relating to mine ventilation systems analysis are usually of a very complex nature. They involve the estimation of numerous interdependent parameters pertaining to the network status, ventilation status, ventilation system stability, air current losses, climate conditions, gas state, fire risk and dangerous dust pollution risk. The solution to these problems relies, to a great extent, on numerical methods. With the development of computer technology these methods were incorporated as numerical routes in software packages, such as the mine ...Nikola Lilić, Ranka Stanković, Ivan Obradović. "Ventex: an expert system for mine ventilation systems analysis" in Mining Technology, United Kingdom (1997)
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Pannonian Basin, Pannonian Basin System and Pannonian realm - three different concepts
Dejan Radivojević (2019)... Dejan Radivojević | GeomorForum 2019, Landforms related to the plains of Serbia and its neighboring area, Beograd, | 2019 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005457 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...Dejan Radivojević. "Pannonian Basin, Pannonian Basin System and Pannonian realm - three different concepts" in GeomorForum 2019, Landforms related to the plains of Serbia and its neighboring area, Beograd, , Društvo geomorfologa Srbije (2019)
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Introductory editorial - Special issue: Genesis and protection of groundwater in carbonate aquifer
Saša Milanović (2019)Saša Milanović. "Introductory editorial - Special issue: Genesis and protection of groundwater in carbonate aquifer" in Carbonates and Evaporites, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s13146-019-00487-2
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Преносници снаге на рударским машинама
Предраг Јованчић, Стеван Ђенадић (2023)Предраг Јованчић, Стеван Ђенадић. Преносници снаге на рударским машинама, Београд : Универзитет у Београду, Рударско-геолошки факултет, 2023
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Influence of Initial Treatment on the Survival and Recurrence in Patients With Differentiated Thyroid Microcarcinoma
... | Jasna Mihailović, Ljubomir Stefanović, Ranka Stanković | Clinical Nuclear Medicine | 2013 | | 10.1097/RLU.0b013e3182872ed2 http://dr.rgf.bg.ac.rs/s/repo/item/0002523 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
... Ross D, Litofsky D, Ain K, et al. Recurrence after treatment of micropapillary thyroid cancer. Thyroid. 2009;19:1043Y1048. 9. Yamashita H, Noguchi S, Murakami N, et al. Extracapsular invasion of lymph node metastasis. A good indicator of disease recurrence and poor prognosis in patients with thyroid ...
... the Mayo Clinic 1946 through 1970: initial manifestation, pathologic find- ings, therapy, and outcome. Mayo Clin Proc. 1986;61:978Y996. 12. Noguchi S, Yamashita H, Murakami N, et al. Small carcinomas of the thyroid gland. A long-term follow-up of 867 patients. Arch Surg. 1996;131:187Y191. 13. Baudin ...Jasna Mihailović, Ljubomir Stefanović, Ranka Stanković. "Influence of Initial Treatment on the Survival and Recurrence in Patients With Differentiated Thyroid Microcarcinoma" in Clinical Nuclear Medicine, Lippincott Williams & Wilkins (2013). https://doi.org/10.1097/RLU.0b013e3182872ed2
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Evaluation of the effects of wastewater heat pump integration into district heating systems by simulation
Dejan Ivezić, Marija Živković, Dimitrije Manić, Aleksandar Madžarević, Boban Pavlović, Dušan Danilović (2023)The integration of wastewater heat pumps (using purified water) in district heating systems is analyzed in this paper. The simulation procedure is proposed to analyze the impacts of stochasticity of purified water temperature and flow to heat pump integration and operation. The analysis includes calculation of the daily and seasonal coefficient of performance, as well as fossil fuel savings and CO2 emission reduction due to wastewater heat pump use. The proposed procedure is implemented for the case study in ...Dejan Ivezić, Marija Živković, Dimitrije Manić, Aleksandar Madžarević, Boban Pavlović, Dušan Danilović. "Evaluation of the effects of wastewater heat pump integration into district heating systems by simulation" in Thermal Science, National Library of Serbia (2023). https://doi.org/10.2298/TSCI220813168I
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Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series
Luka Crnogorac, Rade Tokalić, Zoran Gligorić, Aleksandar Milutinović, Suzana Lutovac, Aleksandar Ganić (2021)Underground mining engineers and planners in our country are faced with extremely difficult working conditions and a continuous shortage of money. Production disruptions are frequent and can sometimes last more than a week. During this time, gate road support is additionally exposed to rock stress and the result is its progressive deformation and the loss of functionality of gate roads. In such an environment, it is necessary to develop a low-cost methodology to maintain a gate road support system. ...deformacije podgrade, lasersko skeniranje, višekanalna singularna spektralna analiza, prognoza, klasterisanje fuzzy vremenskih serija... Milutinović, Suzana Lutovac and Aleksandar Ganić ���������� ������� Citation: Crnogorac, L.; Tokalić, R.; Gligorić, Z.; Milutinović, A.; Lutovac, S.; Ganić, A. Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series. Energies 2021, 14, ...
... *, Rade Tokali¢é, Zoran Gligori¢é Aleksandar Ganié check for updates Citation: Crnogorac, L.; Tokali¢, R.; Gligori¢, Z.; Milutinovié, A.; Lutovac, S.; Gani¢, A. Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series. Energies 2021, 14,3710. ...
... describe deformations of a gate road support, we consider the time de- pendent displacements only in the vertical cross-section (planar problem). Let S(t) be a surface of the support bounded by B(t) =[Bl(t),Bu(t)] at the current time t, where Bl(t) represents the lower edge and Bu(t) represents the upper ...Luka Crnogorac, Rade Tokalić, Zoran Gligorić, Aleksandar Milutinović, Suzana Lutovac, Aleksandar Ganić. "Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series" in Energies, MDPI (2021). https://doi.org/https://doi.org/10.3390/en14123710
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INVENTS: A Hybrid Mine Ventilation Planning and Design System
Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...... | Proceedings of International Scientific Conference of FME Session 4: Automation Control and Applied Informatics | 2013 | | http://dr.rgf.bg.ac.rs/s/repo/item/0000833 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
... “Ventex: An Expert System for Mine Ventilation Systems Analysis“, Mining Technology, Vol. 79, No 915, pp. 295-302, 1997. [8] Oral,M.K. and Durucan,S., (1993), "An Integrated Environment Simulation System for Mine Ventilation Management", XXIII International Symposium APCOM, Montreal, 327-334, Vol ...Lilić Nikola, Stanković Ranka, Obradović Ivan. "INVENTS: A Hybrid Mine Ventilation Planning and Design System" in Proceedings of International Scientific Conference of FME Session 4: Automation Control and Applied Informatics , Hong Kong : iConcept Press (2013)
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Project BEWARE—Landslide Post-disaster Relief Activities for Local Communities in Serbia
Biljana Abolmasov, Dobrica Damjanović, Miloš Marjanović, Ranka Stanković, Velizar Nikolić, Sandra Nedeljković, Žarko Petrović (2017)... Landslides, Proceedings of 4th World Landslide Forum, Ljubljana 29 May-02 June 2017 | 2017 | 3 | 10.1007/978-3-319-53487-9_48 http://dr.rgf.bg.ac.rs/s/repo/item/0001920 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
... rs V. Nikolić Ministry of Mining and Energy of the Republic of Serbia, Nemanjina 22-26, 11000 Belgrade, Serbia e-mail: velizar.nikolic@mre.gov.rs S. Nedeljković Public Investment Management Office, Nemanjina 11, 11000 Belgrade, Serbia e-mail: sandra.nedeljkovic@obnova.gov.rs Ž. Petrović UNDP ...Biljana Abolmasov, Dobrica Damjanović, Miloš Marjanović, Ranka Stanković, Velizar Nikolić, Sandra Nedeljković, Žarko Petrović. "Project BEWARE—Landslide Post-disaster Relief Activities for Local Communities in Serbia" in Advancing Culture of Living with Landslides, Proceedings of 4th World Landslide Forum, Ljubljana 29 May-02 June 2017 3, Berlin : Springer Interantional (2017). https://doi.org/10.1007/978-3-319-53487-9_48
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INVENTS: a hybrid system for subsurface ventilation analysis
Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...... Lilić, Ranka Stanković, Ivan Obradović | Proc. of International Scientific Conference of FME, September 2000, Ostrava | 2000 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005254 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
... “Ventex: An Expert System for Mine Ventilation Systems Analysis“, Mining Technology, Vol. 79, No 915, pp. 295-302, 1997. [8] Oral,M.K. and Durucan,S., (1993), "An Integrated Environment Simulation System for Mine Ventilation Management", XXIII International Symposium APCOM, Montreal, 327-334, Vol ...Nikola Lilić, Ranka Stanković, Ivan Obradović. "INVENTS: a hybrid system for subsurface ventilation analysis" in Proc. of International Scientific Conference of FME, September 2000, Ostrava, FME (2000)
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The optimization of auxiliary machinery in open-cast lignite mines: a case study of bulldozers
One of the most important prerequisites for the successful operation of the open-cast lignite mine is to carry out all the auxiliary works timely with the necessary quality. The most important and most commonly used auxiliary machines are bulldozers. Engaging time of bulldozers use is in direct relation with the coefficients of the time and capacity utilization of the continuous system for the excavation of coal and tailings, which indicates their importance. More than 100 bulldozers have been hired ...... Jovančić, Stevan Đenadić, Ivan Janković, Ivica Ristović | 7th International Symposium Mining and Environmental Protection | 2019 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005614 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
... and Metallurgy, 2008, pp. 297-305. Life Cycle Asset Management, Life Cycle Engineering, Inc. Available online: www.LCE.com 6. Jankovic, I.; Djenadic, S.; Ignjatovic, D.; Jovancic, P.; Subaranovic, T.; Ristovic, I. Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining. Energies ...Dragan Ignjatović, Predrag Jovančić, Stevan Đenadić, Ivan Janković, Ivica Ristović. "The optimization of auxiliary machinery in open-cast lignite mines: a case study of bulldozers" in 7th International Symposium Mining and Environmental Protection, University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia (2019)
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Medical Domain Document Classification via Extraction of Taxonomy Concepts from MeSH Ontology
Mihailo Škorić, Mauro Dragoni (2019)This paper is a result of a task that was presented to attendants of Keyword Search in Big Linked Data summer school, that was organized by Vienna University of Technology, under the Keystone COST action in the summer of 2017. It presents a specific approach to the classification via creation of minimal document surrogates based on the US National medical library’s MeSH ontology, which is derived from the Medical Subject Headings thesaurus. In a series of previously classified medically ...... document Dj , then this index can be defined as a double the number of common terms divided with the total number of terms in both documents (if S is a set, |S| is a number of terms in that set). If documents do not have any common terms then sim(Di, Dj) is equal to 0 which reflects the minimal similarity ...
... of Taxonomy Concepts from MeSH Ontology | Mihailo Škorić, Mauro Dragoni | Infotheca | 2019 | | 10.18485/infotheca.2019.19.1.3 http://dr.rgf.bg.ac.rs/s/repo/item/0004946 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...Mihailo Škorić, Mauro Dragoni. "Medical Domain Document Classification via Extraction of Taxonomy Concepts from MeSH Ontology" in Infotheca, Faculty of Philology, University of Belgrade (2019). https://doi.org/10.18485/infotheca.2019.19.1.3
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Flotability of chalcopyrite from the Rudnik deposit
Директно селективно флотирање олова, бакра и цинка у флотацији рудника „Рудник” датира од 1984. године. Технолошка шема омогућава директно издвајање селективних концентрата у три циклуса. У првом циклусу се издваја минерал олова (галенит), док су минерал бакра (халкопирит) и минерал цинка (марматит) депримирани. У другом циклусу се оток концентрације минерала олова кондиционира и припрема за издвајање минерала бакра. Након кондиционирања, у овом циклусу се издваја минерал бакра. У трећем циклусу се оток концентрације минерала бакра кондиционира и припрема за ...Đurica Nikšić, Predrag Lazić, Milena Kostović. "Flotability of chalcopyrite from the Rudnik deposit" in Journal of Mining Science, Springer Verlag (2021). https://doi.org/10.1134/S1062739121030170
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Simple 2D gravity–density inversion for the modeling of the basin basement: example from the Banat area, Serbia
We have developed a technique to calculate lateral density distribution of the sedimentary basin basement by combining linear gravity–density inversion and 2D forward modeling. The procedure requires gravity anomaly data, depth-to-basement data and density data for the sediments (density–depth distribution). Gravity efect of density variations in the basement was extracted from the total gravity anomaly by removing the joint efect of the sediments with vertical density variations and homogeneous basement of average density contrast (calculated by 2D modeling). Gravity ...Ivana Vasiljević, Snežana Ignjatović, Dragana Đurić. "Simple 2D gravity–density inversion for the modeling of the basin basement: example from the Banat area, Serbia" in Acta Geophysica, Springer (2019). https://doi.org/10.1007/s11600-019-00328-9
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An Integrated Environment for Management and Exploitation of Linguistic Resources
Ranka Stanković, Ivan Obradović (2009)... and Information Technology, Computational Linguistics – Applications Workshop (CLA09), Mrągowo, Poland, October 2009 | 2009 | | http://dr.rgf.bg.ac.rs/s/repo/item/0001477 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
... P. Vossen, EuroWordNet. A multilingual database with lexical semantic network , Dordrecht, Kluwer, 1998. [4] P. Bonhomme, T.M.H. Nguyen, S. O’Rourke, “XAlign: l’aligneur de Langue & Dialogue”, http://www.loria.fr/equipes/led/outils/ALIGN/ align.html, 2001. [5] D. Vitas, C. Krstev, ...
... 2006. [7] M. Silberztein, “ INTEX: a Finite State Transducer toolbox”, in Theo- retical Computer Science, vol. 231, no.1, pp.33-46, Jan 2000. [8] S. Paumier, “M anuel d’utilisation du logiciel Unitex”, IGM, Université de Marne-la-Vallée. http://www-igm.univ-mlv.fr/~unitex/ manueluni- tex.pdf ...Ranka Stanković, Ivan Obradović. "An Integrated Environment for Management and Exploitation of Linguistic Resources" in Proceedings of the International Multiconference on Computer Science and Information Technology, Computational Linguistics – Applications Workshop (CLA09), Mrągowo, Poland, October 2009, Piscataway : IEEE (2009)
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Arhitektonsko-građevinski kamen Crne Gore, stanje i potencijali
Darko Božović, Vladimir Simić (2023)Darko Božović, Vladimir Simić. "Arhitektonsko-građevinski kamen Crne Gore, stanje i potencijali" in Geološki glasnik (2023)
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Ontološki model upravljanja rizikom u rudarstvu
Olivera Kitanović (2021)Rudarska proizvodnja obuhvata kompleksne tehnološke sisteme, što nameće potrebu za uspostavljanjem i unapređivanjem sistema upravljanja rizikom. Heterogenost i obim podataka neophodnih za upravljanje rizikom zahtevaju sistem koji ih na fleksibilan način integriše i omogućava njihovo optimalno korišćenje. Osnovni cilj ove disertacije je razvoj ontologije za domen rudarstva i na njoj zasnovanog modela za upravljanje rizikom. Njegova realizacija podrazumeva i implementaciju algoritama ekstrakcije informacija za popunjavanje ontologije, kao i odgovarajuće softversko rešenje. Razvoj modela obuhvata i značajno proširenje rudarskog korpusa, kao ...rudarstvo, rizik, upravljanje rizikom, procena rizika, ontologija, semantička mreža, ekstrakcija informacija, upravljanje znanjem, računarska lingvistika... postojeće opasnosti. 9 https://www.capterra.com/risk-management-software/s/free/ 10 https://safetyculture.com/iauditor/ 11 https://www.designsafe.net/softwareabout https://www.capterra.com/risk-management-software/s/free/ https://safetyculture.com/iauditor/ https://www.designsafe.net/softwareabout ...
... Termini nemaju definicije, niti primere upotrebe. S obzirom na to da je rečnik star skoro 50 godina, mnogi pojmovi su zastareli, dok neki novi pojmovi nedostaju. Prvi terminološki „Englesko-hrvatsko-srpski naftni rečnik“ za oblast naftnog inženjerstva (S. Lazić 1976), koji prethodi „Englesko-hrvatski ...
... razvijenog planuma, izaziva prepakovanje zrna peska i promenu zapremine peskovitih masa.{S} Promenom zapremine peskovitog sočiva izaziva se sleganje površinskih slojeva alevrita i njegovo blokovsko pucanje.{S} Dinamika bušenja nije bila zadovoljavajuća zbog čestih kvarova bušaće garniture koji su ...Olivera Kitanović. Ontološki model upravljanja rizikom u rudarstvu, Beograd : [O. Kitanović], 2021
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Анализа примене утискивања полимера за повећање искоришћења лежишта „Х“
Јана Ивановић (2024)Лежиште „Х“ се налази у Панонском басену и део је нафтно-гасног поља „ХХ“.С обзиром на висок удео воде у произведеном флуиду на лежишту је потребно применити неку методу којом би се смањила брзина напредовања фронта воде ка производним бушотинама, односно смањио удео воде у производњи. Овај рад има за циљ да детаљно испита могућност примене једне од допунских метода повећања искоришћења лежишта, методе утискивања полимера на изабраном лежишту „Х“. Први део рада приказује основне теоријске појмове на којима се ...... MeuoBaMba KyMyJIaTHBHe IIpOH3BOJUbe Ha(bTe, BOJIe, H TeuHe (ba3e. 42 MeuogBaM»e McropujjaTa npoM3BO/nbbe ( KyMy/1aTMBHa rpoM3BO,nkba sm3) .0 s 700 E s H i š Šv | Š m š 200 10 o 2016 2017 2088 2000 2071 2022 2004 navyaa —— yaaynamaa npoy3bO/a Ha&Te - bOAEA [1035m3} – Ryayaanasna ...
... а у Београду [ДР РГФ] Анализа примене утискивања полимера за повећање искоришћења лежишта „Х“ | Јана Ивановић | | 2024 | | http://dr.rgf.bg.ac.rs/s/repo/item/0008731 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
... vi ra k B 4 c k o a H o c T M (% ) Spndo. Brne: 25000 TDS, 180 TDS CaandMg, _no catbonato | 0 40000 80000 120000 160000 Bp3MHa cMMuaMa [s"} Cnuka 2.6 3aqauchocm 6ucko3Hocmu oo 0p3uHe cMuuatba, [21] IIocroje onpebeHu THHOBH HOJIHMcCpa KOJH Cy OTHOPpHHJH Ha HaHmpe3aĐbe Ha CMHIIaHbc, ...Јана Ивановић. Анализа примене утискивања полимера за повећање искоришћења лежишта „Х“, 2024