Претрага
1092 items
-
The influence of alkyl polyglucosides (and highly ethoxylated alcohol boosters) on the phase behavior of a water/toluene/technical alkyl polyethoxylate microemulsion system
Marija Ilic, Franz-Hubert Haegel, Vesna Pavelkic, Dragan Zlatanovic, Snezana Nikolic-Mandic, Aleksandar Lolic, Zoran Nedic (2016)The influence of additives (alkyl polyglucoside, Glucopon 600 CS UP and alcohol ethoxylate C18E100) on the behavior of the water/toluene/Lutensol ON 50 (technical oxoalcohol, i-C10E5) microemulsion system as a function of temperature and composition has been investigated. The phase behavior of the microemulsions was determined by vertical sections through the Gibbs phase prism (fish-like phase diagrams). Alkyl polyglucoside shifts the one phase region to lower temperatures compared with water/toluene/Lutensol ON 50 mixtures. This is contrary to the expectation, considering ...микроемулзија, толуен, алкил полиглукозид, оксоалкохол етоксилат, појачивач ефикасности, „fish“ дијаграми... Mihailescu, M. Monkenbusch, H. Endo, J. Allgaier, G. Gompper, J. Stellbrink, D. Richter, B. Jakobs, T. Sott- manmn, B. Farago, J. Chem. Phys. 115 (2001) 9563-9577 A. Kabalnov, U. Olsson, H. Wennerstrom, Langmuir 10 (1994) 2159-2169 C. Frank, H. Frielinghaus, J. Allgaier, D. Richter, Lang- muir ...
... Amsterdam, 2001, pp. 39-44 H. Endo, M. Mihailescu, M. Monkenbusch, J. Allgaier, G. Gompper, D. Richter, B. Jakobs, T. Sottmann, R. Strey, l. Grillo, J. Chem. Phys. 115 (2001) 580-600 B. Jakobs, T. Sottmann, R. Strey, J. Allgaier, L. Willner, D. Richter, Langmuir 15 (1999) 6707-6711 T. Sottmann ...
... 1245-1248 A. Stradner, B. Mayer, T. Sottmann, A. Hermetter, O. Glatter, J. Phys. Chem., B 103 (1999) 6680-6689 I.F. Uchegbu, S.P. Vyas, Int. J. Pharm. 172 (1998) 33-70 R. Schwering, D. Ghosh, R. Strey, T. Sottmann, J. Chem. Eng. Data 60 (2015) 124-136 K. Hill, W. von Rybinski, G. Stoll, Alky ...Marija Ilic, Franz-Hubert Haegel, Vesna Pavelkic, Dragan Zlatanovic, Snezana Nikolic-Mandic, Aleksandar Lolic, Zoran Nedic. "The influence of alkyl polyglucosides (and highly ethoxylated alcohol boosters) on the phase behavior of a water/toluene/technical alkyl polyethoxylate microemulsion system" in Chemical Industry and Chemical Engineering Quarterly, National Library of Serbia (2016). https://doi.org/ 10.2298/CICEQ141105015I
-
Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду
... сировински комплекс у периоду реструктуирања: проблеми Србије и светска искуства Експ. нафте С. Вујић В. Митровић, М. Ерцеговац 108. Жужа Ј. Владимир 22.12.2006. Технолошки аспекти израде литералних бушотина кратког радијуса Експ. нафте Р. Бизјак В. Митровић, Д. Даниловић, Б. ...
... Митровић, М. Солеша В. Недељковић 39. Ивановић М. Владимир 23.05.1996. Утицај минералне прашине при оцени услова рада на површинским коповима угља Вент. и тех. заштита Ј. Пејчиновић, Н. Лилић М. Миљковић 40. Кецојевић Ј. Владимир 28.06.1996. Избор оптималног система за одводњавање ...
... Јовановић Д. Марковић, С. Трајковић, Н. Видановић 82. Чебашек Р. Владимир 28.06.2002. Избор параметара чврстоће на смицање чврстих стена за потребе пројектовања у рударству Механика стена Ј. Радојевић Н. Гојковић, Ј. Бралић, Р. Лапчевић, Р. Обрадовић 83. Мајсторовић Б. Јелена ...главни и одговорни уредник Душан Поломчић. Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду, Београд : Универзитет у Београду, Рударско-геолошки факултет, 2016
-
Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)
This paper presents the first data on the organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in the East Herzegovina region of the External Dinarides. Representative, organic-rich samples from outcropping sedimentary rocks of different ages in the area (Triassic to Neogene) were selected and analysed. The organic matter was studied by Rock-Eval pyrolysis and under the microscope in reflected non-polarized light and incident blue light. The results obtained show the presence of different types of organic ...... Bouzinos, A., Cardott, J. B., Cook, C. A., Eble, C., Flores, D., Gentzis, T., Goncalves, P. A., Filho Mendoca, G. J., Hamor-Vido, M., Jelonek, I., Kommeren, K., Knowles, W., Kus, J., Mastalerz, M., Menezes, R. T., Newman, J., Oikonomopoulos, K. I., Pawlewicz, M., Pickel, W., Potter, J., Ranasinghe, P ...
... Gentzis, T., Goncalves, P. A., Filho Mendoca, G. J., Hamor-Vido, M., Jelonek, I., Kommeren, K., Knowles, W., Kus, J., Mastalerz, M., Menezes, R. T., Newman, J., Oikonomopoulos, K. I., Pawlewicz, M., Pickel, W., Potter, J., Ranasinghe, P, Read, H., Reyes, J., De La Rosa Rodriguez, G., Viegas Alves Fernandes ...
... Espitalié, J., Deroo, G. & Marquis, F., 1985. La pyrolyse Rock-Eval et ses applications. Deuxième partie. Oil & Gas Science and Technology. L’Institut Français du Pétrole Energies Nouvelles, 40: 755–784. Espitalié, J., Laporte, J. L., Madec, M., Marquis, F., Leplat, P., Poulet, J. & Boutefeu, ...Nikoleta Aleksić, Aleksandar Kostić, Miloš Radonjić. "Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)" in Annales Societatis Geologorum Poloniae (2021). https://doi.org/10.14241/asgp.2021.16
-
Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content
Nina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović (2019)Mesoporous anatase nanopowders were doped with 0.05−0.5 mol% of W6, in order to obtain more efficient photocatalyst than TiO2 Degussa P25 in the degradation of amitriptyline (AMI) under simulated solar irradiation (SSI). Dominant XRPD peaks were ascribed to anatase phase, with additional peaks which could correspond to brookite, TiO2 bronze and sodium titanate, Na2Ti9O19. The Raman scattering measurements have confirmed anatase as dominant phase, with broad Raman feature at ~270 cm−1 possibly related to Ti–O–Na stretching vibration. All W-doped ...Sol-gel synthesis, Doped titania nanopowders, XRPD, Raman spectroscopy, Adsorption and photocatalytic degradation, Psychiatric drugsNina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović. "Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content" in Journal of Sol-Gel Science and Technology, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s10971-019-04925-4
-
Actual contamination of the Danube and Sava rivers at Belgrade (2013)
Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer (2014)rečni sistemi, stanje zagađenja, organski zagađivači, teški metali, skrining analize, non-target screening... REFERENCES 1. R. A. Hites, J. Chromatogr. Sci. 11 (1973) 570 2. J. Rivera, F. Ventura, J. Caixach, M. De Torres, A. Figueras, J. Guardiola, Int. J. Environ. Anal. Chem. 29 (1987) 15 3. A. Puig, N. Cebrifin, J. Sarasa, M. C. Martinez, M. P. Ormad, M. S. Mutuberria, J. L. Ovelleiro, Water Res. 27 ...
... DANUBE 1183 7. M. Chem, L. Q. Ma, Soil. Sci. Soc. Am. J. 65 (2001) 491 8. C. Ianni, N. Ruggieri, P. Rivaro, R. Frache, Anal. Sci. 17 (2001) 1273 9. S. J. Hill, T. A. Arowolo, O. T. Butler, S. R. N. Chenery, J. M. Cook, M. S. Cresser, D. L. Miles, J. Anal. At. Spectrom. 17 (2002) 284 10. V. Sandroni ...
... 159 (2009) 99 22. L. Dsikowitzky, J. Schwarzbauer, R. Littke, Org. Geochem. 33 (2002) 1747 23. W. Stumm, J. J. Morgan, Aquatic chemistry: an introduction emphasizing chemical equilibria in natural waters, 2nd ed., Wiley, New York, 1981, p. 780 24. L. Dsikowitzky, J. Schwarzbauer, A. Kronimus, R. Littke ...Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer. "Actual contamination of the Danube and Sava rivers at Belgrade (2013)" in Journal of the Serbian Chemical Society, National Library of Serbia (2014). https://doi.org/10.2298/JSC131105014A
-
Model of the Geomagnetic reference field of the Republic of Serbia
Spomenko J. Mihajlović, Vesna Cvetkov (2024)Spomenko J. Mihajlović, Vesna Cvetkov. "Model of the Geomagnetic reference field of the Republic of Serbia" in 5th Congress Geologists of the Republic of North Macedonia, Ohrid, 28-29. 10. 2024, Македонско геолошко друштво (2024)
-
Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems
Dejan Ćebić, Nebojša M. Ralević (2021)Dejan Ćebić, Nebojša M. Ralević. "Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems" in Journal of Mathematical Chemistry, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10910-021-01253-3
-
Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)
... Burg J-P (1987) Regional shear variation in relation to dia- pirislm and · folding. J · Struct Geol 9:025—934. doi:10.1016/0191-8141(87)90002-2 Burg J-P (2012) Rhodope: from Mesozoic convergence to Cenozoic extension. Review of petro-structural data in the geochronologi- cal frame. J Virtual ...
... Tectonics 29:TC2002. doi:10.1029/2000TC002509 Kounov A, Burg J-P, Bernoulli D et al (2011) Paleostress analysis of Cenozoic faulting in the Kraishte area, SW Bulgaria. J Struct Geol 33:859—874. doi:10.1016/j.jsg.2011.03.006 Kounov A, Graf J, von Quadt A et al (2012) Evidence for a “Cado- mian” ophiolite ...
... 556"N). Length of hammer 330 mm Int J Earth Sci (Geol Rundsch) (2017) 106:1665–1692 Fig.6 Simplified tectonic map of the study area with arrows representing local directions of tectonic transport. See text for i w details N O 42 *% 0' N || ~ N y j }a ~ AOI NM / i w\ S 1673 “ ...Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Richard Spikings, Andreas Wetzel. "Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)" in International Journal of Earth Sciences, Springer Science and Business Media LLC (2016). https://doi.org/10.1007/s00531-016-1380-6
-
Age of the Jurassic hemipelagic sediments from the Ljubiš area (Zlatibor Mt., SW Serbia)
Nikita Bragin, Nevenka Đerić (2020)... ration of the esteemed Nataša GERZINA. REFERENCES AUBOUIN, J., BONNEAU, M., CELET, P., CHARVET, J., CLEMENT, B., DEGAR DIN, J.M., DERCOURT, J., FERRIÈRE, J., FLEURY, J.J., GUERNET, C., MAIL LOT, H., MANIA, J.H., MANSY, J.L., TERRY, J., THIEBAULT, P., TSOFLIAS, P. & VERRIEUZ, J.J. (1970): Contribution ...
... CONTI, M., CORTESE, G., DANELIAN, T., DE WEVER, P., DUMITRICA, P., DUMITRICA-JUD, R., GORIČAN, Š., GUEX, J., HULL, D., KITO, N., MARCUCCI, M., MATSUOKA, A., MURCHEY, B., O’DOGHERTY, L., SAVARY, J., VISHNEVSKAYA, V., WIDZ, D. & YAO, A. (1995b): Middle Jurassic to Early Cretaceous radiolarian biochronology ...
... Abhandlungen, 288/1, 1–47. GAWLICK, H.-J., SUDAR, M.N., MISSONI, S., SUZUKI, H., LEIN, R. & JOVANOVIĆ, D. (2017): Jurassic geodynamic history of the Dinaridic Ophiolote Belt (Innere Dinarides, SW Serbia).– Journal of Alpine Geology, 55, 1–167. GAWLICK, H.-J., SUDAR, M., SUZUKI, H., DJERIĆ, N., MISSONI ...Nikita Bragin, Nevenka Đerić. "Age of the Jurassic hemipelagic sediments from the Ljubiš area (Zlatibor Mt., SW Serbia)" in Geologia Croatica, Croatian Geological Survey (2020). https://doi.org/10.4154/gc.2020.11
-
Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains
carbon and oxygen isotopes, radiolarians, calcareous dinoflagellates, radiolarites, Krížna Nappe, West ern Carpathians, Tethys... emo{el SYN PNEL SIM EeneL evsuetjog uBiH SHW B J J UJ93S9/A UPIUOUJIL 6 seuozv[) j O O seuoz| ·aGenoujp |6 900ZvT\ Š S_E_Mu„u_ _ -- e b n a n u o / g d v |pijjeuo!d|eO| s n o a u e o j e D | u e l e j o i p e x e v eyruuouuuv O L SZ O S 0 ...
... southern Spain). Facies, 55: 80-102. Nembčok, J., Bezak, Y., Biely, A., Gorek, A., Gross, P., Halouzka, R., Janak, M., Kahan, S., Kotanski, Z., Lefeld, J., Mello, J., Reichwalder, P., Raczkowski, W., Roniewicz, P., Ryka, W., Wieczorek, J. & Zelman, J., 1994. Geologickd mapa Tatier (Geological ...
... o18b[ogd 'g '(g66 1 *D{suAZozsnir)) }os y p o j S o d u t o ) *V 'O1ssbJnf oye'|-O|pp!}A| 2U} 10J e}ep odojosi!-uoq1eo Jo uO!JP|[9.102,) | 001 8LH sejduues 0 9|0uM B e p e u e o v pueRo0Os m s e j u u j j e q g c:m_mww MeN O PISSDOJ A ĐOUIAOJGj ...Renata Jach, Nevenka Đerić, Špela Goričan, Daniela Reháková. "Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains" in Annales Societatis Geologorum Poloniae (2014)
-
Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu
Nikoleta Aleksić (2021)... Purolite® A109 and its post- immobilization stabilization. Process Biochemistry, 49, 637–646. [12] Šekuljica, N., Prlainović, N., Stefanović, A., Žuža, M., Čičkarić, D., Mijin, D., Knežević- Jugović, Z., (2015). Decolorization of Anthraquinonic Dyes from Textile Effluent Using Horseradish Peroxidase: ...
... 49. Morillo, E., Villaverde, J., 2017. Advanced technologies for the remediation of pesticide- contaminated soils. Science of the Total Environment 586, 576-597. https://doi.org/10.1016/j. scitotenv.2017.02.020. 50. Josko, I., Oleszczuk, P., Pranagal, J., Lehmann, J., Xing, B., Cornelissen, G., 2013 ...
... B., Rončević, Z., Dodić, S., Grahovac, J., Dodić, J. (2015). Glycerol as a carbon source for xanthan production by Xanthomonas campestris isolates. Acta Periodica Technologica, 46, 197-206. [10] Zahović, I., Rončević, Z., Dodić, S., Grahovac, J., Dodić, J. (2019). Ispitivanje mogućnosti iskorišćenja ...Nikoleta Aleksić. "Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu" in VIII Memorijalni naučni skup iz zaštite životne sredine „Docent dr Milena Dalmacija“, 2021, Prirodno-matematički fakultet, Novi Sad (2021)
-
A survey of greenhouse gases production in central European lignites
Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska (2021)... ‘Adamów’ brown coal mines. J. Ecol. Eng. 16, 138–143. https:// doi.org/10.12911/22998993/60470. Gläßer, C., Groth, D., Frauendorf, J., 2011. Monitoring of hydrochemical parameters of lig- nite mining lakes in Central Germany using airborne hyperspectral casi-scanner data. Int. J. Coal Geol. 86, 40–53. ...
... nadkladu w Koninskim Zaglebiu Wegla Brunatnego, Przeglad Geologiczny. Myhre, G., Shindell, D., Bréon, F., Collins, W., Fuglestvedt, J., Huang, J., Koch, D., Lamarque, J., Lee, D., Mendoza, B., Nakajima, T., Robock, A., Stephens, G., Takemura, T., Zhan, H., 2013. Anthropogenic and natural radiative forcing ...
... measures. Geomicrobiol J. 31, 737–747. https://doi.org/10.1080/01490451.2014.889783. Pytlak, A., Sujak, A., Szafranek-Nakonieczna, A., Grzadziel, J., Banach, A., Goraj,W., Galazka, A., Gruszecki, W.I., Stepniewska, Z., 2020a. Water-induced molecular changes of hard coals and lignites. Int. J. Coal Geol. 224 ...Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska. "A survey of greenhouse gases production in central European lignites" in Science of The Total Environment, Elsevier (2021). https://doi.org/10.1016/j.scitotenv.2021.149551
-
Osnovi hidrogeologije
Petar Dokmanović (2021)... York 8. Davis, N. S. & De Wiest, R. J. M. (1966): Hydrogeology, New York/ London/ Sydney. 9. Delleur J, (2007): Ellementary Groundwater flow and transport processes, In: The Handbook of Groundwater Engineering (sec. edition), 3.1-3.42, Editor: Delleur J , CRC Press Taylor and Francis group, Boca ...
... of Groundwater, In: The Handbook of Groundwater Engineering (sec. edition), Editor: Delleur J , CRC Press Taylor and Francis group, Boca Raton-London-New York 47. Lehr J., Scott H., Gallagher B. & Voytek J. (1988): Design and construction of water wells, Van Nostrand Reinhold, New York 48. Ljvovič ...
... poljoprivrednog zemljišta. 10 O s n o v i h i d r o g e o l o g i j e I DEO U V O D 11 O s n o v i h i d r o g e o l o g i j e 1.POJAM, PREDMET IZUČAVANJA I PRAKTIČNI ZNAČAJ HIDROGEOLOGIJE Hidrogeologija ...Petar Dokmanović. Osnovi hidrogeologije, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2021
-
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 ...... 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 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Određivanje ...
... 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 | 52. savetovanja Srpskog hemijskog društva | 2015 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005644 Дигитални ...
... na povréini biougljeva primenom Boehm-ovih titracija Aleksandar D. Krstié, Aleksandar D. Lolié, Marija A. li, Aleksandar M. Mijatovi¢*, ‘Snezana J. Zlatanovi¢'*, Zoran P. Nedi¢***, Vesna M. Pavelki¢**** Hemijski fakultet, Univerzitet u Beogradu, Studentski trg 12-16, Beograd, Srbija; *Rudarsk ...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)
-
Идејно решење заштите површинског копа ,,Дрмно" од вода у периоду од 2030. године до краја експлоатације
Јован Киселчић (2024)Системи одводњавања на површинским коповима као и други технички системи морају успешно извршавати своју функцију и са свим својим елементима издржавати сва предвиђена напрезања,а при томе бити једноставни и економични.Функција система одводњавања је да спречи доток, пре свега, подземних вода у површински коп и да у одређеном времену испумпа задате количине воде.У овом раду приказани системи одводњавања на површинском копу ,,Дрмно" у периоу од 2023.године до краја експлоатације и то систем одводњавања подземних вода и систем одводњавања површинских вода.На ...... eJIČKTDOHNIDOBOJUPBHBOCT BOJIĆ H3 J[pMHCKeE H3JaHH JE OKO H H3HaJL MaKCHMAJIHO J\03BOJbeHe BpeJiHocTu oJ 1000 uS/cm; yKyrHH0 rBo»Klje (Fe) – oHo Iro KapakTepurre J[pMHckKy H3JlaH je noBehaH cajnp:xaj TBOxxXlja H MaHraHa y 3HauajHHM KOHICHTPpaHJaMa, OJL MaKCHMAJIHO J[O3BOJbeHHX KOHneHrTpanuja 3a ...
... Ma y J(eJOBHMa TepeHa OKO TIOBPIHHHCKOT KOra /J[pMH0o, TJie IIOCTOJH OBOJUĐbCHOCT y IIJIHOKBapTapHHM IIIJEByHKOBHMAa H TIČCKOBHMA, KaO H y JIeJIOBHMa TepeHa TJI IIOCTOJH IHpeKTHa XHpaylnmHukKa Be3a H3JlaHH y TIOBJIATH H HOJUHHH II yrJbeHOr cCJIOJa HMaMO Behu cajlpxkaj cyar(para, MOK ce y J(eJIOBHMa ...
... /lyHantia, ripekHHyT Je rpoTHnaj peuHax BojJta J[yHapneM. Kopuro /lyHaBia je cana IIpeceueHO H IIpeKO HOBOT CIIOJHOT KaHajma 4 mnoBe3aHo ca KaHajiIoM 4-1. Peka Miaiana ce bopmupa y 2KaryOunu o)j1i BoJla cHa)xKHOT KapcTHor Bpcja. OJ Ilerpopna na Jo cBor ymriha y J{yHaB, rpejnicraBJba paBHHuapcky peky Koja ...Јован Киселчић. Идејно решење заштите површинског копа ,,Дрмно" од вода у периоду од 2030. године до краја експлоатације, 2024
-
Prognoza operativne efikasnosti aktivnog podzemnog rudnika zasnovana na teoriji sivih sistema
Svetlana M. Štrbac-Savić (2016-06-10)Efikasnost predstavlja preduslov za opstanak svake rudarske kompanije, posebno u uslovima izuzetno konkurentnog trţišnog okruţenja kao što je to rudarska industrija. Efikasnost oznaĉava sposobnost kompanije da ispuni svoje kratkoroĉne ili dugoroĉne ciljeve. Operativna efikasnost se definiše kao odnos izmeĊu ulaznih parametara potrebnih za odvijanje proizvodnje i pokazatelja dobijenih proizvodnjom. U kontekstu rudarskog poslovanja, operativna efikasnost se odnosi na vreme potrebno da se mineralno dobro transformiše u novĉana sredstva. Visoka operativna efikasnost se postiţe kada se ostvari prava kombinacija karakteristika ...podzemni rudnik, operativna efikasnost, prognoza, teorija sivih sistema, stohastiĉke diferencijalne jednaĉine, simulacija... 1 min max , 2,3, , max j j j k j k j j j j k x k x k x k x k k j m k x k x k (3.31) Gde j k zadovoljava navedene aksiome, a je koeficijent diskriminacije [GUO85], i 0,1 ; dok je , , 1( ) | ( ) ( ) | .j jk x k x k Interval mere ...
... podataka. Relativna greška izraţena u procentima (RPE(j,k)) i srednja relativna greška izraţena u procentima (ARPE(j,k)) su: 0 0 0 0 0 0 2 100% 1 100 ˆ ˆ % 1 j j j n j j k j x k x k RPE x k Error x k x k ARPE n x k ...
... jednaĉina MGM(1, m) prvog reda je: 1 1 11 1 2 m j j j dx k ax k b x k dk (3.19) Saglasno sa MGM(1, m), konstruisana AGO sekvenca je: 0 1 1 1 1 2 m j j j x k az k b z k (3.20) Konstruisana AGO sekvenca moţe biti ...Svetlana M. Štrbac-Savić. "Prognoza operativne efikasnosti aktivnog podzemnog rudnika zasnovana na teoriji sivih sistema" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-06-10)
-
The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector
Natural gas is used for the production of almost 20% of total energy today. The natural gas security of the Republic of Serbia is an urgent strategic, political and security issue. Serbia is one of the most vulnerable countries in Southeast Europe, because it only has one supply route. This study is a contribution to efforts to better understand the factors affecting energy security through the implementation of a new methodology based on the fuzzy–AHP synthesis model for measuring ...... ј Е − − ј Е − − ј Е − − ј Е − − ј Е − − ј Е − − ј Е − − ј Е ...
... IEF = 40 m3/€ for the class j = 10 was found for the natural gas sector, as well as the minimum value of the economic feasibility Index IEF = 1 m3/€ for the class j = 1. The remaining values for class j are: j = 2 IEF = A2min + (A2max − A2min)/9 = 1+(40 − 1)/9 = 5.333 j = 3 IEF = A2j=2 + (A2max − A2 ...
... 1)/9 = 9.667 j = 4 IEF = A2j=3 + (A2max − A2 min)/9 = 9.667 + (40 − 1)/9 = 14.000 j = 5 IEF = A2j=4 + (A2max − A2 min)/9 = 14.000 + (40 − 1)/9 = 18.333 j = 6 IEF = A2j=5 + (A2max − A2 min)/9 = 18.333 + (40 − 1)/9 = 22.667 j = 7 IEF = A2j=6 + (A2max − A2min)/9 = 22.667 + (40 − 1)/9 = 27.000 j = 8 IEF = A2j=7 ...Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković. "The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector" in Symmetry, MDPI AG (2020). https://doi.org/10.3390/sym12060908
-
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... on stage were also used for the forecasting purpose. Vector U(i)∇ j , j = 1, 2, composed of the first Li−1 components of the vector U(i) j , j = 1, 2, 3, 4, is represented in Table 11. Table 11. Components of the vector U(i) j , j = 1, 2. Marker UV 1 UV 2 1 0.0011 −0.0570 0.0020 −0.0639 2 0.0016 ...
... . . . . . . . . . . . . 19 0.2072 −0.0705 0.2065 −0.0628 Vector π(i)j , j = 3, composed of the last component of the vector U(i) j , (i = 1, . . . , M), is represented in Table 12. Table 12. Components of the vector π(i)j , j = 3. Marker UV 1 UV 2 1 0.0029 −0.0640 2 0.0037 −0.0744 . . . . . . ...
... matrix Ỹ(i) obtained from the previous step, whereH is a Hankel operator; assume U(i)∇ j denotes the vector of the first Li−1 components of the vector U(i) j and π (i) j is the last component of the vector U(i) j (i = 1, . . . , M); select the number of r eigentriples for the reconstruction stage that ...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
-
A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System
This paper presents a model for determining fuzzy evaluations of partial indicators of the availability of continuous systems at coal open pits using a neuro-fuzzy inference system. The system itself is a combination of fuzzy logic and artificial neural networks. The system availability is divided into partial indicators. By combining the fuzzy logic and artificial neural networks, a model is obtained that has the ability to learn and uses expert judgment for that learning. This paper deals with the ...системи, континуални системи експлоатације (роторни багер-транспортер-дробилично постројење), рударство, расположивост, меко рачунарство, фази логика, ANN, ANFISMiljan Gomilanović, Miloš Tanasijević, Saša Stepanović, Filip Miletić. "A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System" in Energies, MDPI AG (2023). https://doi.org/10.3390/en16072958
-
Numerical Models of Debris Flows with Entrainment Analysis-Case Studies from the Republic of Serbia
The results of material entrainment analysis in RAMMS debris flow software, as well as numerical models of final flow heights for two case studies from the Republic of Serbia are presented. Both of debris flow cases started with initial sliding of huge volume block, prolonging to behave as flowing process. Results of the analysis showed that entrainment material affects final results of transportation model, runout distance, deposition area and volume of debris flow. In both cases entrainment volume is very ...Jelka Krušić , Biljana Abolmasov, Miloš Marjanović. "Numerical Models of Debris Flows with Entrainment Analysis-Case Studies from the Republic of Serbia" in Understanding and Reducing Landslide Disaster Risk. WLF 2020. ICL Contribution to Landslide Disaster Risk Reduction, Springer, Cham (2021). https://doi.org/10.1007/978-3-030-60706-7_25