Претрага
807 items
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Petrološke i tehničke karakteristike amfibolita Potkondžila (Teslić)
Srećković Batoćanin Danica, Vasković N., Radulović S., Matović Vesna, Stević M.. "Petrološke i tehničke karakteristike amfibolita Potkondžila (Teslić)" in Zbornik radova-knjiga sažetaka/I Kongres geologa Bosne i Hercegovine, Tuzla, 21 – 23 oktobra 2015. godine (2015): 106-109
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Differences between CEC determination methods used for different types of soil
Kaluđerović L., Milošević M., Nikolić N., Tomić Z.. "Differences between CEC determination methods used for different types of soil" in Geophysical Research Abstracts 19, Vienna, Austria:Copernicus Publications (2017): 2044
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Одређивање оптималне производње дубинске пумпе на клипним шипкама
Небојша Савић (2024)Дужи временски период током историје производње нафте, дубинске пумпе на клипним шипкама су први и у многим случајевима једини избор када су у питању механичке методе експлоатације. Правилан одабир сваког појединачног елемента система омогућава оптимизацију која са собом повлачи бенефите у виду повећавања ефикасности и смањења трошкова. Тренутно примењени систем дубинских пумпи на клипним шипкама на лежишту „Н“ обезбеђује стабилну производњу и реализацију годишњих планова производње без већих проблема. У овом раду је приказан начин оптимизације производње дубинским пумпама ...... g·*m';“;::;"*"“ ;;f_“ 'Crank rotabon with well to naht: ccw Cvdie isad facter: 1684 Max. cb moment (N-m), 51054.98 Max_ cb moment (N-en)- Unknown Coumterbalance eMect(N) 566% Suuctural unbalence (N} 20 Daily electr use (Kyh/Day}, 123 Crank offset anole (deorees) 00 Monthiy electric bik' [27] lectr ...
... -10 b afbox loa/ j 'Crank rotatvon with well to nqbt: CCW Cyolic loed lector: 1606 Max_cb moment (N-m) 67221.17 Max_ cb moment (N-m)' Unknown Counterbalance effect(N) 59046 'Structvural unbalence (N): 1120 Daily electr use (Kwh/Day}: 205 Crank offset anqle (deqrees) 00 Monthly electric bili #375 ...
... arbox j: .. Crank rotation with veell to nqht: CCW Cvoho ioad factor: 1669 155 Max_cb moment (N-m}. 580919 66010.1 Max. cb moment (N-m) Unknown Counterbalance effect(N) 51179 58003 Suuctural unbalence (N): 1120 Daiy elecir use (Kwd\Day)}: 106 108 Crank offiset anqle (degre5) 00 Monthly electnc bili ...Небојша Савић. Одређивање оптималне производње дубинске пумпе на клипним шипкама, 2024
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Microstructural and magnetic properties of electrospun hematite/cuprospinel composites
Phase composition, microstructural and magnetic properties of electrospun hematite/cuprospinel composites were investigated. Samples were synthesized starting with 0 to 10 mol% of copper relative to iron. The round shape of reference electrospun fbres was preserved upon their heating up to 600 °C in air, whereas at 700 °C hollow substructure was additionally formed. In these reference samples the presence of hematite phase was detected by XRPD. A small amount (traces) of Fe3O4 /γ-Fe2O3 was also found, due to the ...Electrical and Electronic Engineering, Condensed Matter Physics, Atomic and Molecular Physics and Optics, Electronic, Optical and Magnetic MaterialsMira Ristić, Aleksandar Kremenović, Michael Reissner, Željka Petrović, Svetozar Musić. "Microstructural and magnetic properties of electrospun hematite/cuprospinel composites" in Journal of Materials Science: Materials in Electronics, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s10854-020-03526-0
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Proračun recirkulacionih pumpi u postrojenju za odsumporavanje dimnih gasova ,,TENT B"
Tomislav Trpković (2024)Predmet ovog rada baziraće se na proračunu i usvajanju mašinskih instalacija potrebnih za nesmetano funkcionisanje sistema dve međusobno povezane celine Absorber - Pumpna stanica, preko FRP ( Fiberglass Reinforced Plastic) cevovoda kojim se odvija transport suspenzije krečnjaka neophodnog u samom procesu odsumporavanja dimnih gasova. Pored tehničkog opisa same tehnologije koja uključuje tri objekta: Absorber, Pumpna Stanica i cevovod, glavni deo rada odnosiće se na proračun i usvajanje mašinskih instalacija koji uključuju recirkulacione radijalne centrifugalne pumpe i cevovode kojima ...postrojenje za odsumporavanje dimnih gasova, termoelektrana, pumpna stanica, FRP cevovod, Absorber, transport suspenzije gipsa, prirubnica, ventil, potisni cevovod, usisni cevovod... Z010 DN1400 / N-1(g) / EL.+1860 2TF44Z010 DN1400 / N-1(h) / EL.+1860 POTIS - DN750. |DN600r DN600 |DN600r 2TFI3Z02% «2 N-2.1(a) N-2.2 (a) |N-2.3 (a) EL.+19000 |EL.+19000 |EL.+19000 ·|EL.+19000 / | / | [DN600r |DN600r |DN600 |DN750. 2 TF 14 Z020 N-2.3 (b) N-2.2(b) | |N-2.1(b) | |N-2(b) | || ...
... 2TF23Z020 |2 N-2.1(c) N-2.2(c) |N-2.3 (c) EL.+20500 |EL.+20500 |EL.+20500 |EL.+20500 / | / | ~ |DN600 |DN600 |DN600 |DN750 2TF24 Z 020 N-2.3 (d) N-2.2(d) | |N-2.1(d) - |N-2(d) | || ı | JEL.+20500 · |EL.+20500 ·|EL.+20500 ~ |EL.+20500 . DN750. |DN600 DN600. |DN600r 2TF33Z020 |G N-2.1(e) N-2.2 (e) ...
... B P BI R. - - EN NN N| EN N| Š i= ii F| F= F| F F| Š USIS O2TF13Z010 DN1400 / N-1(a)/ EL.+1860 2TF14Z010 DN1400 / N-1(b)/ EL.+1860 2TF23 Z010 DN1400 / N-1(c)/ EL.+1860 2TF24Z010 DN1400 / N-1(d) / EL.+1860 2TF33 Z010 DN1400 / N-1(e)/ EL.+1860 2 TF34Z010 DN1400 / N-1(f)/ EL.+1860 2TF43 ...Tomislav Trpković. Proračun recirkulacionih pumpi u postrojenju za odsumporavanje dimnih gasova ,,TENT B", 2024
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Supstitucione reakcije Pd(II) kompleksa sa biološki važnim biomolekulima
Aleksandar M. Mijatović, Jovana Bogojeski. "Supstitucione reakcije Pd(II) kompleksa sa biološki važnim biomolekulima" in Hemijski pregled, Srpsko hemijsko društvo (2017)
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SEM-EDS analysis and microindentation hardness study of n-type doped BiTeSe alloy single crystals
Požega Emina, Ivanov Svetlana, Stević Zoran, Vuković Nikola, Gomidželović Lidija, Marković Ivana (2013)Požega Emina, Ivanov Svetlana, Stević Zoran, Vuković Nikola, Gomidželović Lidija, Marković Ivana. "SEM-EDS analysis and microindentation hardness study of n-type doped BiTeSe alloy single crystals" in Proceedings of the 45th International October Conference on Mining and Metallurgy, Bor:Univerzitet u Beogradu – Tehnički fakultet u Boru (2013): 584-587
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Variation of olivine composition in the volcanic rocks in the Songliao basin, NE China: lithosphere control on the origin of the K-rich intraplate mafic lavas
Zhang, L.-Y., Prelević Dejan, Li, N., Mertz-Kraus, R., Buhre, S.. "Variation of olivine composition in the volcanic rocks in the Songliao basin, NE China: lithosphere control on the origin of the K-rich intraplate mafic lavas" in Lithos 262 (2016): 153-168. https://doi.org/https://doi.org/10.1016/j.lith
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Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia
Paleontology, Stratigraphy, Economic Geology, Geochemistry and Petrology, Geology, Geophysics, Geotechnical Engineering and Engineering Geology... BRAGIN, N. Y. 2000. Triassic radiolarian zonation in the Far East of Russia. Stratigraphy and Geological Correlation, 8:579-592. BRAGIN, N. Y. 2007. Late Triassic radiolarians of southern Cyprus. Paleontological Journal, 41: 951–1029. BRAGIN, N., BRAGINA, L., GERZINA SPAJIĆ, N. & DJERIĆ, N. 2017 ...
... Geology, Belgrade. BRAGIN, N., BRAGINA, L., GERZINA SPAJIĆ, N., DJERIĆ, N. & SCHMID, S. 2018. New radiolarian data from the Jurassic ophi- olitic mčlange of Avala Mountain (Serbia, Belgrade Re- gion). Swiss Journal of Geosciences, 112 (1): 235–249. CHIARI, M., DJERIĆ, N., GARFAGNOLI, F., HRvATOoVIĆ ...
... GERZINA, N., KovAcs, S., DoszTALy, L., GULAcsI, Z., LESs, G. & PELIKAN, P. 2003. Olistostrome/mćlanges – an overview of the problems and preliminary comparison of such formations in Yugoslavia and NE Hungary. Slovak Geo- logical Magazine, 9 (1): 3–21, Bratislava. DJERIĆ, N., GERZINA, N. & ScHMID ...Nikita Bragin, Liubov Bragina, Nevenka Đerić, Nataša Gerzina-Spajić. "Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia" in Geološki anali Balkanskoga poluostrva (2019). https://doi.org/10.2298/GABP1901017B
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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)... -W 1 V LN -W 2 K N N -W 1 K N N -W 2 TC B - W 1 TC B - W 2 B C B - W 1 B C B - W 2 H C 4 H C l o m n ( n oitc u d or p 4 ss a m yr d g 1- y a d 1- ) 0.0 0.2 0.4 0.6 60.0 80.0 100.0 120.0 K B R V LN -W 1 V LN -W 2 K N N -W 1 K N N -W 2 TC B - W ...
... values for Eh and N-NO3 were 0.49 (p < 0.05), while for N-NH4 0.52 (p < 0.05), suggesting that the more reduced lignites contained higher concentrations of the re- duced N form. Because N-NH4 was the dominant form of nitrogen (with concentrations several dozen times higher than those of N- NO3), it may ...
... acceptors Table 2 Characteristics of the investigated coals and lignites. TOC – total organic carbon; N-NO3, N-NH4P-PO4, SD – standard deviation (sample abbreviations as in Table 1). Symbol Moisture TOC N-NO3 N-NH4 P-PO4 % % mg kg dry mass−1 Mean ±SD Mean ±SD Mean ±SD Mean ±SD Mean ±SD KBR 51.92 1.31 63 ...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
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Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)
... predominantly shallow dipping Int J Earth Sci (Geol Rundsch) (2017) 106:1665–1692 1671 @ \N, s N=5 Western part ofthe Lower Complex Vrvi Kobila area N Umin N=19 imylonitc • lneadon N shear-zone % foliation foliation outside" % ihe shear:zone - Vranjska Banja area - see Figure ...
... 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 “ Outcrop-scale high conf. “ Outcrop-scale low conf. m Microstructure s Mineral lineation ...
... 6l ı1g 667 N,„CtEC'CI/SPocP H„CAO'SP/OSolC JI9AOTT Sstou8-)q VUfe|A I-8PCAS f } [ 1 || Hi:4 9F || (d) Pgc SIN 60E N„L6L'SP/SPocP H,6C'6,SoCC VUISP|A | JSMUDS-[UO ouv[opoad SOMS xojdutoo) b/u [4 [453] L8'6S || (d) IE SIN ME N,SOrCOC/IPocP ...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
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A transient three-dimensional numerical model of water impermeable screen effects on the groundwater inflow reduction into the mine (Case Study: Open pit mine Drmno, Serbia)
Šubaranović Tomislav, Polomčić Dušan, Pavlović Vladimir, Pakić N. "A transient three-dimensional numerical model of water impermeable screen effects on the groundwater inflow reduction into the mine (Case Study: Open pit mine Drmno, Serbia)" in Proceedings on CD-ROM [Elektronski izvor]. Vol. 1-2 / 11th International Conference Research and Development in Mechanical Industry - RaDMI 2011, 15-18. September 2011, Sokobanja, Serbia, Vrnjačka Banja:Scientific and Technical Center for Intellectual Property (2011): 1257-1265
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Analiza pouzdanosti dozera angažovanih na površinskim kopovima RB Kolubara
U radu je izvršena uporedna analiza pouzdanosti transportnih sistema dozera koji rade na površinskim kopovima Rudarskog basena Kolubara. Period za koji je vršena analiza je prvih deset godina eksploatacije. Efikasnost tehnološkog procesa na otkopavanju korisne mineralne sirovine i otkrivke u velikoj meri zavisi od rada dozera. Iskorišćene su matematičke metode za aproksimaciju i identifikaciju zabeleženih vremena u radu, kako bi se dobili analitički pokazatelji pouzdanosti. Na ovaj način se bitno podiže kvalitet upravljanja procesom eksploatacije i održavanja mašina na ...... t, h 440,00 880,00 1320,00 1760,00 2200,00 3080,00 t, 1000 h 0,44 0,88 1,32 1,76 2,2 3,08 N (t) 15 15 5 5 1 1 N (t) 15 30 35 40 41 42 n (t) 27 12 7 2 1 0 n (t-t) 42 27 12 7 2 1 MR, % 34,6698 70,0472 81,8396 93,6321 95,9906 98,3491 Fe (t), - 0 ...
... 285,00 570,00 855,00 1140,00 1425,00 1995,00 t, 1000 h 0,285 0,57 0,855 1,14 1,425 1,995 N (t) 13 15 5 6 2 2 N (t) 13 28 33 39 41 43 n (t) 30 15 10 4 2 0 n (t-t) 43 30 15 10 4 2 MR, % 29,2627 63,8249 75,3456 89,1705 93,7788 98,3871 Fe (t), - 0 ...
... 00 690,00 920,00 1150,00 1380,00 1610,00 t, 1000 h 0,23 0,46 0,69 0,92 1,15 1,38 1,61 N (t) 6 8 8 6 8 3 1 N (t) 6 14 22 28 36 39 40 n (t) 34 26 18 12 4 1 0 n (t-t) 40 34 26 18 12 4 1 MR, % 14,1089 33,9109 53,7129 68,5644 88,3663 95,7921 98,2673 ...Filip Miletić, Dragan Milčić, Miloš Tanasijević, Miloš Milovančević. "Analiza pouzdanosti dozera angažovanih na površinskim kopovima RB Kolubara" in 10th International Conference Coal 2021, Jugoslovenski komitet za površinsku eksploataciju, Zlatibor (2021)
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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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Evolution of the Alpine Tethys (Sava) suture zone in Fruška Gora Mountains (N Serbia): from orogenic building to tectonic omissions
Toljić Marinko, Matenco Liviu, Đerić Nevenka, Milivojević Jelena, Gerzina Nataša, Stojadinović Uroš (2010)Toljić Marinko, Matenco Liviu, Đerić Nevenka, Milivojević Jelena, Gerzina Nataša, Stojadinović Uroš. "Evolution of the Alpine Tethys (Sava) suture zone in Fruška Gora Mountains (N Serbia): from orogenic building to tectonic omissions" in Geophysical Research Abstracts, 7th EGU General Assembly, 02-07 May 2010, Vienna, Austria 12, Vienna:Copernicus on behalf of the European Geophysical Society (2010)
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Hydrogeothermal potentials of Rogozna mountain and possibility of their valorization
D. R. Ivanović, Dj. A Valjarević, R. D. Srećković-Batoćanin, N. M. Martić-Bursać, D. Ž. Vukoičić, R. M. Ivanović (2020)D. R. Ivanović, Dj. A Valjarević, R. D. Srećković-Batoćanin, N. M. Martić-Bursać, D. Ž. Vukoičić, R. M. Ivanović. "Hydrogeothermal potentials of Rogozna mountain and possibility of their valorization" in Open Geosciences, Walter de Gruyter GmbH (2020). https://doi.org/10.1515/geo-2019-0083
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Uticaj utiskivanja gas-lift gasa na prenos mase i toplote
Branko Grubač (2019)Nakon uvođenja kontinualnog gas-lifta, primećen je porast proizvodnje tečnog naftnog gasa, TNG, u postrojenju za preradu gasa, kao jednog od finalnih proizvoda dobijenog iz fluida gaso kondenzatnih i rastvorenog gasa iz naftnih bušotina. Pretpostavljeno je da se prisustvom gas-lift gasa uspostavlja drugačija ravnoteža faza u odnosu na slučaj bez gaslifta, te da je gas-lift gas stripovao propan i butane iz tečne u parnu fazu, što je dovelo do povećanja prinosa TNG-a. Napravljen je model bušotine koja radi u kontinualnom gas-liftu ...... 1276 Propan (C3H8) 0,0689 0,0791 0,0754 0,0200 i-Butan (i-C4H10) 0,0118 0,0138 0,0132 0,0015 n-Butan (n-C4H10) 0,0255 0,0306 0,0294 0,0020 i-Pentan (i-C5H12) 0,0088 0,0105 0,0104 0,0003 n-Pentan (n-C5H12) 0,0072 0,0091 0,0091 0,0002 p-C6+ 0,1114 0,1195 0,1403 0,0001 Helijum (He) 0,0001 0,0001 ...
... 1,322 1,267 Propan 0,658 1,250 0,612 0,619 i-Butan 0,258 0,556 0,238 0,241 n-Butan 0,170 0,383 0,169 0,173 i-Pentan 0,067 0,150 0,091 0,096 n-Pentan 0,055 0,120 0,084 0,090 n-Heksan 0,019 0,041 0,043 0,049 n-Heptan 0,007 0,014 0,023 0,026 Doktorska disertacija Uticaj utiskivanja ...
... 1,170 1,059 Propan 0,782 0,696 0,554 0,500 i-Butan 0,318 0,276 0,211 0,187 n-Butan 0,214 0,181 0,149 0,131 i-Pentan 0,086 0,069 0,081 0,071 n-Pentan 0,071 0,055 0,076 0,066 n-Heksan 0,026 0,018 0,040 0,035 n-Heptan 0,009 0,006 0,021 0,018 Tabela 8.8 – Promena konstantne fazne ravnoteže ...Branko Grubač. Uticaj utiskivanja gas-lift gasa na prenos mase i toplote, Beograd : Rudarsko-geološki fakultet, 2019
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Effects of external noise on threshold-induced correlations in ferromagnetic systems
Dragutin Jovković, Sanja Janićević, Svetislav Mijatović, Lasse Laurson, Đorđe Spasojević. "Effects of external noise on threshold-induced correlations in ferromagnetic systems" in Physical Review E, American Physical Society (APS) (2021). https://doi.org/10.1103/PhysRevE.103.062114
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Burnishing Versus Smoothing In Ceramic Surface Finishing: A Sem Study
From the Neolithic up to the present, people have used various methods to improve the surface of ceramic objects. In this study, we look specifically at smoothing and pattern burnishing of ceramics produced today by traditional methods. Optical microscopy and SEM show specific surface changes. Smoothing results in an irregular surface, which causes diffused reflection of light. Burnishing produces an even and compact surface, which causes specular reflection and lustre. The results can be used to infer methods of ...Ionescu Corina, Volker Hoeck, Crandell Otis N., Šarić Kristina. "Burnishing Versus Smoothing In Ceramic Surface Finishing: A Sem Study" in Archaeometry no. XZY, England: University of Oxford (2014): XX-XX. https://doi.org/10.1111/arcm.12089
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Microemulsion with aromatic oil as cleaner media for electropolymerisation
Abstract Microemulsion polymerization is widely used as a cleaner alternative way to prepare intrinsically conductive polymers. We studied isothermal phase diagrams for microemulsions of the electropolymerizable heterocyclic aromatic oil 3,4-ethylenedioxythiophene (EDOT), aqueous LiClO4 solution and alkyl polyethoxylate. Our specific goal was to assess the effect of LiClO4 salt on the phase behaviour. The phase behaviour was characterized by stepwise titration and microscopic analyses. Here we found that the increase of the concentration of LiClO4 salt shifts the microemulsion region ...M. Ilić, F.-H. Haegel, S. Zlatanovic, N. Potkonjak, B. Simonovic. "Microemulsion with aromatic oil as cleaner media for electropolymerisation" in Environmental Chemistry Letters, Springer Science and Business Media LLC (2005). https://doi.org/10.1007/s10311-005-0101-3