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920 items
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Utvrđivanje Bondovog radnog indeksa Pb-Cu-Zn rude rudnika Rudnik
Jovana Jović (2024)Završni rad sa temom ,,Utvrđivanje Bondovog radnog indeksa Pb-Cu-Zn rude rudnika Rudnik” sastoji se iz opšteg i specijalnog dela. OPŠTI DEO sadrži: U opštem delu dato je: Uvod, Geografski položaj i istorijski razvoj rudnika "Rudnik", kratak prikaz geologije ležišta i eksploatacije rude kao i opis tehnološkog procesa flotacije rudnika “Rudnik”. SPECIJALNI DEO sadrži:U specijalnom delu dato je:Cilj istraživanja, teorijske osnove usitnjavanja, Bondov radni indeks, metode ispitivanja uzoraka, uzorkovanje i obrada uzorka; Metode ispitivanja; Rezultati ispitivanja po standardnom Bondovom postupku i po ...Bondov radni indeks, standardni postupak, skraćeni postupak, ruda olova, bakra i cinka, rudnik „Rudnik“... istraživanja Usitnjavanje Je jedan od osnovnih industrijskih procesa koga opterećuju veliki rashodi u teškoj opremi, energiji, funkcionisanju i održavanju. Njegov mehanički učinak je izuzetno nizak, često i niži od 1% i gotovo sva upotrebljena energija potrebna da se usitni rovna stenska masa se ...
... Usitnjavanje Usitnjavanje Je jedan od osnovnih industrijskih procesa koga opterećuju veliki rashodi u teškoj opremi, energiji, funkcionisanju i održavanju. Za usitnjavanje rude do projektovane krupnoće potrebno Je utrošiti najviše energije, znatno više od utroška svih ostalih procesa pripreme i ...Jovana Jović. Utvrđivanje Bondovog radnog indeksa Pb-Cu-Zn rude rudnika Rudnik, 2024
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Distribution of major and trace elements in the Kovin lignite (Serbia)
Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović (2019)geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive Xray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). ...... Hema- tite Calcite 2/79 II 23.0 10.5 47.0 2.6 8.4 8.5 3/79 II 45.3 27.9 14.8 7.1 3.1 1.8 4/79 II 21.5 13.3 42.6 4.0 18.6 0 5/79 II 50.3 19.1 9.6 4.5 0.3 16.3 6/79 II 73.6 19.9 0 2.5 0 4.0 8/79 II 33.0 11.0 36.1 0.5 18.2 1.2 11/79 III 20.4 62.4 0.6 15.4 0.1 1.2 14/79 III 17.6 15.8 42.8 6.6 5.7 11 ...
... 9.1 1.9 49/601 II 43.5 37.6 10.3 6.6 0.5 1.5 50/603 I (Ia) 20.0 24.5 38.6 4.7 9.8 2.4 51/603 I (Ib) 25.1 37.4 16.7 5.9 0 14.9 52/603 I (Ib) 12.1 4.0 52.3 0.7 5.7 25.3 53/603 I (Ib) 46.7 22.6 17.4 8.8 4.4 0.3 54/603 II 14.8 14.3 54.6 3.9 9.5 2.9 55/603 II 22.4 57.2 6.2 10.0 1.7 2.5 56/603 II 36 ...
... 3/79 II 4.2 < 0.5 14.5 3.0 69.1 2.1 < 0.5 110.8 66.0 4/79 II 6.2 < 0.5 5.0 2.3 79.8 1.0 < 0.5 49.8 31.0 5/79 II 0.8 < 0.5 0.6 0.3 10.2 0.1 < 0.5 6.4 4.0 6/79 II < 0.5 < 0.5 15.1 2.5 58.0 0.9 < 0.5 89.4 59.4 8/79 II 15.7 < 0.5 8.1 2.0 73.9 1.9 < 0.5 78.7 47.5 11/79 III 14.2 < 0.5 8.1 1.9 120.7 2.8 < ...Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović. "Distribution of major and trace elements in the Kovin lignite (Serbia)" in Geologia Croatica, Croatian Geological Survey (2019). https://doi.org/10.4154/gc.2019.06
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Comprehensive Profiling of Microbiologically Induced CaCO3 Precipitation by Ureolytic Bacillus Isolates from Alkaline Soils
Olja Šovljanski, Lato Pezo, Jovana Stanojev, Branimir Bajac, Sabina Kovač, Elvira Tóth, Ivan Ristić, Ana Tomić, Aleksandra Ranitović, Dragoljub Cvetković, Siniša Markov (2021)MICP process, kinetic study, calcite, vaterite, MALDI-TOF identification, Bacillus licheniformis, Sporosarcina pasteurii... article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). 1 Faculty of Technology Novi Sad, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia; ivan.ristic@uns.ac.rs (I.R.); anav@uns.ac ...
... article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by / 4.0/). 1 Faculty of Technology Novi Sad, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia; ivan.ristic@uns.ac.rs (LR.); anav@uns.ac ...
... (HiMedia, Mumbai, India), (ii) Urea-CaCl2 agar and broth [20], and (iii) YE-CaCl2 agar and broth (modified of Urea-CaCl2 media; Urea was replaced with 4.0 g/L yeast extract). Overnight bacterial suspension aliquots (0.3 mL) were transferred into previously mentioned liquid media, adequate dilutions were ...Olja Šovljanski, Lato Pezo, Jovana Stanojev, Branimir Bajac, Sabina Kovač, Elvira Tóth, Ivan Ristić, Ana Tomić, Aleksandra Ranitović, Dragoljub Cvetković, Siniša Markov. "Comprehensive Profiling of Microbiologically Induced CaCO3 Precipitation by Ureolytic Bacillus Isolates from Alkaline Soils" in Microorganisms, MDPI AG (2021). https://doi.org/10.3390/microorganisms9081691
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Tectonic evolution of the Circum-Moesian orocline of the Carpatho-Balkanides: Paleomagnetic constraints
Emő Márton, Vesna Cvetkov, Miodrag Banješević, Gábor Imre, Aleksandar Pačevski. "Tectonic evolution of the Circum-Moesian orocline of the Carpatho-Balkanides: Paleomagnetic constraints" in Journal of Geodynamics, Elsevier BV (2024). https://doi.org/10.1016/j.jog.2024.102058
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Evaluation And Perspectives Of Underground Coal Mines In Serbia
Vladimir Milisavljević, Milena Lekić, Ivica Ristović, Vojin Čokorilo, Aleksandar Cvjetić. "Evaluation And Perspectives Of Underground Coal Mines In Serbia" in 7th Balkan Mining Congress Preceedings - BalkanMine2017, Prijedor, 11-13. oktobar 2017., Banjaluka : University of Banjalika, Faculty of Mining, RS, BiH (2017)
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Палеомагнетски резултати из Тимочког магматског комплекса, Источна Србија
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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William „Strata” Smith, otac engleske geologije– 250 godina od rođenja
Dejan Radivojević (2019)Dejan Radivojević. "William „Strata” Smith, otac engleske geologije– 250 godina od rođenja" in Zbornik radova Srpskog geološkog društva, Srpsko geološko društvo (2019)
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Joint interpretation of paleomagnetic, structural and AMS results from the Vardar Zone of Serbia
Emo Marton, Marinko Toljić, Vesna Lesić, Vesna Cvetkov. "Joint interpretation of paleomagnetic, structural and AMS results from the Vardar Zone of Serbia" in 18th Meeting of the Central European Tectonic Studies Group (CETEG) & 25th Meeting of the Czech Tectonic Studies Group, 22-25th April, 2021, Terchová, Slovakia, Department of Geological Sciences, Masaryk University in cooperation with the Czech Geological Survey, IPE MU Brno and UK Praha (2021)
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A contribution to the knowledge of facial diversity of Badenian sediments in the Belgrade area
Filip Anđelković, Dejan Radivojević (2018)Filip Anđelković, Dejan Radivojević. "A contribution to the knowledge of facial diversity of Badenian sediments in the Belgrade area" in 17th Serbian Geological Congress, Vrnjačka Banja, 17-20 maj 2018, Srpsko geološko društvo (2018)
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Novi pristup proučavanju tekstura minerala značajnih za istraživanje rudnih ležišta
Aleksandar Pačevski (2022)Aleksandar Pačevski. "Novi pristup proučavanju tekstura minerala značajnih za istraživanje rudnih ležišta" in 18. Kongres geologa Srbije “Geologija rešava probleme” Divčibare, 01-04 jun 2022., Beograd : Srpsko geološko društvo (2022)
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Zaštita od miniranja
Suzana Lutovac, Miloš Gligorić (2024)Suzana Lutovac, Miloš Gligorić. Zaštita od miniranja, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet, 2024
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Improving efficiency of thermal power plants through mine coal quality planning and control
Главни циљ контроле квалитета угља у рудницима лигнита је снабдевање термоелектрана угљем чији квалитет мора да се креће унутар одређених квалитативних ограничења. Карактеристике угља могу да утичу на ефикасност, поузданост и расположивост како котла тако и јединица за контролу емисије. У овом раду аутори су презентовали интегрисану симулацију рударског процеса као нови приступ у истраживању променљивости калоричне вредности угља приликом експлоатације комплексног лежишта лигнита. Резултати таквог приступа омогућавају драгоцен увид у перформансе континуалног рударског система у смислу контроле променљивости ...Mirjana Banković, Dejan Stevanović, Milica Pešić, Aleksandra Tomašević, Ljiljana Kolonja. "Improving efficiency of thermal power plants through mine coal quality planning and control" in Thermal Science, Vinča Institute of Nuclear Sciences (2018). https://doi.org/10.2298/TSCI170605209B
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Mineralogical analysis of a clay body from Zlakusa, Serbia, used in the manufacture of traditional pottery
... article, distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike licence (http://creativecommons.org/licenses/by-nc-sa/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the same Creative Commons licence is included and the ...Maja Milošević, Biljana Đorđević, Mihovil Logar. "Mineralogical analysis of a clay body from Zlakusa, Serbia, used in the manufacture of traditional pottery" in Clay Minerals (2020). https://doi.org/10.1180/clm.2020.20
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Multiword Expressions between the Corpus and the Lexicon: Universality, Idiosyncrasy and the Lexicon-Corpus Interface
Verginica Barbu Mititelu, Voula Giouli, Kilian Evang, Daniel Zeman, Petya Osenova, Carole Tiberius, Simon Krek, Stella Markantonatou, Ivelina Stoyanova, Ranka Stankovic, Christian Chiarcos (2024)Predstavljamo trenutne aktivnosti na definisanju interfejsa leksikona i korpusa koji će služiti kao referenca u prikazu polileksemskih jedinica - višečlanih izraza - (različitih tipova - imenskih, glagolskih, itd.) u specijalizovanim leksikonima i povezivanju ovih unosa sa njihovim pojavljivanjima u korpusima. Konačni cilj je korišćenje ovakvih resursa za automatsko identifikovanje višečlanih izraza u tekstu. Uključivanje nekoliko prirodnih jezika ima za cilj univerzalnost rešenja koje nije usredsređeno na određeni jezik, kao i prilagođavanje idiosinkrazijama. Raspravljaju se izazovi u leksikografskom opisu višerečnih ...Verginica Barbu Mititelu, Voula Giouli, Kilian Evang, Daniel Zeman, Petya Osenova, Carole Tiberius, Simon Krek, Stella Markantonatou, Ivelina Stoyanova, Ranka Stankovic, Christian Chiarcos. "Multiword Expressions between the Corpus and the Lexicon: Universality, Idiosyncrasy and the Lexicon-Corpus Interface" in Proceedings of the Joint Workshop on Multiword Expressions and Universal Dependencies (MWE-UD) @ LREC-COLING 2024, Turin, May 25, 2024, ELRA and ICCL (2024)
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Димензионисање система завојних пумпи
Марија Дивац (2024)Овај завршни рад се бави димензионисањем система завојних пумпи (Progressive Cavity Pumps - PCP) које се широко користе у нафтној и гасној индустрији, нарочито за подизање тешких и вискозних флуида. Завојне пумпе су се показале као ефикасно решење у бушотинама са сложеним условима,захваљујући својој способности да транспортују флуиде са високим садржајем чврстих честица и гаса.Рад обухвата анализу кључних параметара као што су вискозност, густина, дубина бушотине и притисак, који су пресудни за избор одговарајуће пумпе.Применом софтверског алата извршена је ...завојне пумпе, димензионисање, експлоатација нафте, вискозни флуиди, софтверска симулација, PCP пумпеМарија Дивац . Димензионисање система завојних пумпи, 2024
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SASA Dictionary as the Gold Standard for Good Dictionary Examples for Serbian
Ranka Stanković, Branislava Šandrih, Rada Stijović, Cvetana Krstev, Duško Vitas, Aleksandra Marković (2019)У овом раду представљамо модел за избор добрих примера за речник српског језика и развој иницијалних компоненти модела. Метода која се користи заснива се на детаљној анализи различитих лексичких и синтактичких карактеристика у корпусу састављених од примера из пет дигитализованих свезака речника САНУ. Почетни скуп функција био је инспирисан сличним приступом и за друге језике. Дистрибуција карактеристика примера из овог корпуса упоређује се са карактеристиком дистрибуције узорака реченица ексцерпираних из корпуса који садрже различите текстове. Анализа је показала да ...Српски, добри примери из речника, аутоматизација израде речника, издвајање својстава, Машинско учење... Manual of Lexicography. Praha: Academia. This work is licensed under the Creative Commons Attribution ShareAlike 4.0 International License. http://creativecommons.org/licenses/by-sa/4.0/ 269 Proceedings of eLex 2019 ...Ranka Stanković, Branislava Šandrih, Rada Stijović, Cvetana Krstev, Duško Vitas, Aleksandra Marković. "SASA Dictionary as the Gold Standard for Good Dictionary Examples for Serbian" in Electronic lexicography in the 21st century. Proceedings of the eLex 2019 conference , Lexical Computing CZ, s.r.o. (2019)
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Determination of Mechanical Properties of Altered Dacite by Laboratory Methods
This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...... article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). 1 Mining Department, Mining and Geology Faculty, University of Belgrade, 11000 Belgrade, Serbia; vladimir.cebasek@rgf.bg.ac.rs (V.Č.); vladimir ...
... simulated the actual creativecommons.org /licenses/by / condition in the rock mass in the laboratory. Duffault [2] published the study about model- 4.0/). ing and simulation of heterogeneous rock mass by introducing the new term, “sandwich” iations. Copyright: © 2021 by the authors. Licensee MDPI, ...Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović. "Determination of Mechanical Properties of Altered Dacite by Laboratory Methods" in Minerals, MDPI AG (2021). https://doi.org/10.3390/min11080813
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Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete
Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović (2021)sagorevanje lignita, otpadna šljaka, zamena cementa, proizvodnja maltera i betona, fizičko-mehanička i fizičko-hemijska karakterizacija... article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). 1 “Vinča” Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11351 Belgrade, Serbia; rocenj@vinca ...
... access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by / 4.0/). , Nenad Risti¢ 7, Jelena Gulicovski 1, Andrijana Nedeljkovié 1 SnezZana PaSalié !, 1 “Vinéa” Institute of Nuclear Sciences, National Institute ...Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović . "Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete" in Minerals, MDPI (2021). https://doi.org/10.3390/min11090925
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‘Blue-’ and ‘Brown-speckled’ pottery from Qalhât, the Sultanate of Oman (13–16th centuries): Comparison with traditional Omani 19–20 century productions
Representative ‘Blue speckled’ (13–16th centuries) and ‘Brown speckled’ (13–21st century) wares recovered from the excavations in Qalhât or collected around Bahlâ city (Sultanate of Oman) were characterized by XRPD, SEM-EDS, Raman/optical microspectroscopy, and thermal expansion. Minerals present in the body (quartz, augite and albite as major phases, calcite, dolomite, rutile, anatase, phosphate, hematite and magnetite as minor phases) were identified by XRPD and/or Raman spectroscopy. SEM-EDXS microanalysis was performed on the glazes in order to compare their composition, especially ...Liliana Gianni, Hélène Renel, Aleksandar Kremenović, Philippe Colomban. "‘Blue-’ and ‘Brown-speckled’ pottery from Qalhât, the Sultanate of Oman (13–16th centuries): Comparison with traditional Omani 19–20 century productions" in Boletín de la Sociedad Española de Cerámica y Vidrio, Elsevier BV (2020). https://doi.org/10.1016/j.bsecv.2020.06.005
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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... org/10.3390/en14123710 https://doi.org/10.3390/en14123710 https://creativecommons.org/ https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0/ https://doi.org/10.3390/en14123710 https://www.mdpi.com/journal/energies https://www.mdpi.com/article/10.3390/en14123710?typ ...
... article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). Faculty of Mining and Geology, University of Belgrade, Ðušina 7, 11000 Belgrade, Serbia; rade.tokalic@rgf.bg.ac.rs (R.T.); zoran.gligoric@rgf.bg ...
... access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by / 4.0/). , Aleksandar Milutinovié, Suzana Lutovac and Faculty of Mining and Geology, University of Belgrade, DuSina 7, 11000 Belgrade, Serbia; rade.tokalic@rgf ...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