Претрага
1103 items
-
Properties and characterization of a clay raw material from Miličinica (Serbia) for use in the ceramic industry
Milošević M., Logar M. (2017)Milošević M., Logar M.. "Properties and characterization of a clay raw material from Miličinica (Serbia) for use in the ceramic industry" in Clay Minerals 52 no. 3, UK:The Mineralogical Society (2017): 329-340. https://doi.org/https://doi.org/10.1180/claymi
-
Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae
Hans Peter Nytoft, Geir Kildahl-Andersen, Sofie Lindström, Frode Rise, Achim Bechtel, Danica Mitrović, Nataša Đoković, Dragana Životić, Ksenija A. Stojanović (2019)Two previously unidentified dehydroabietane isomers were isolated from Miocene Serbian lignite and Rhaetian (Late Triassic) coaly mudstones from South Sweden and characterized using NMRspectroscopy as cis- and trans-dehydroicetexane. Both have a 9(10?20)-abeo-abietane or icetexane skeleton, consisting of a 6-7-6 tricyclic framework with seven carbons in ring B instead of the usual six in common diterpanes of the abietane-type. Dehydroicetexanes can be detected using GC-MS-MS in m/z 270?146 chromatograms without interference from dehydroabietane or other isomers. Dehydroicetexanes are often abundant ...Hans Peter Nytoft, Geir Kildahl-Andersen, Sofie Lindström, Frode Rise, Achim Bechtel, Danica Mitrović, Nataša Đoković, Dragana Životić, Ksenija A. Stojanović. "Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae" in Organic Geochemistry, Elsevier BV (2019). https://doi.org/10.1016/j.orggeochem.2019.01.001
-
Characterization of clays from Slatina (Ub, Serbia) for potential uses in the ceramic industry
Milošević M., Logar M., Kaluđerović L., Jelić I.. "Characterization of clays from Slatina (Ub, Serbia) for potential uses in the ceramic industry" in Energy Procedia Energy Procedia 125, :Elsevier (2017): 650-655. https://doi.org/10.1016/j.egypro.2017.08.270
-
Multihazard Exposure Assessment on the Valjevo City Road Network
Miloš Marjanović, Biljana Abolmasov, Svetozar Milenković, Uroš Đurić, Jelka Krušić, Mileva Samardžić Petrović (2019)Miloš Marjanović, Biljana Abolmasov, Svetozar Milenković, Uroš Đurić, Jelka Krušić, Mileva Samardžić Petrović. "Multihazard Exposure Assessment on the Valjevo City Road Network" in Spatial Modeling in GIS and R for Earth and Environmental Sciences, Elsevier Inc (2019). https://doi.org/10.1016/B978-0-12-815226-3.00031-4.
-
Fe doped TiO2 prepared by microwave-assisted hydrothermal process for removal of As(III) and As(V) from water
Anđelković Ivan B, Stanković Dalibor M, Nešić Jelena, Krstić Jugoslav B, Vulić Predrag, Manojlović Dragan D, Roglić Goran M (2014)Anđelković Ivan B, Stanković Dalibor M, Nešić Jelena, Krstić Jugoslav B, Vulić Predrag, Manojlović Dragan D, Roglić Goran M. "Fe doped TiO2 prepared by microwave-assisted hydrothermal process for removal of As(III) and As(V) from water" in Industrial and Engineering Chemistry Research 53 no. 27, Washington:American Chemical Society (2014): 10841-10848. https://doi.org/10.1021/ie500849r
-
Ca-rich carbonates associated to ultrabasic-ultramafic melts: carbonatite remnants or limestone xenoliths? A case study from the late Miocene Morron de Villamayor volcano (Calatrava volcanic field, central Spain).
Lustrino, M., Prelević, D., Agostini, S., Gaeta, M., Di Rocco, T., Capizzi, L. S.. "Ca-rich carbonates associated to ultrabasic-ultramafic melts: carbonatite remnants or limestone xenoliths? A case study from the late Miocene Morron de Villamayor volcano (Calatrava volcanic field, central Spain)." in Geochimica et Cosmochimica Acta 185, :Pergamon (2016): 477-497. https://doi.org/10.1016/j.gca.2016.02.026
-
Kinetics, mechanism, and equilibrium studies of the reactions between a ruthenium(II) complex and some nitrogen- and sulfur-donor nucleophiles
Aleksandar M. Mijatović, Ratomir M. Jelić, Jovana Bogojeski, Živadin D. Bugarčić, Biljana Petrović (2013)Kinetika i mehanizam reakcija supstitucije između [Ru(trpi)(bpi)Cl]+ sa nukleofilima gvanozin-5′-monofosfatom, L-histidinom, tioureom i dimetilsulfoksidom proučavani su spektrofotometrijski u 0,1 M NaClO4 na 310 K. Red reaktivnosti za odabrane ligande je: tiourea > gvanozin-5′-monofosfat > L-histidin > DMSO. Ovaj red je povezan sa elektronskim, strukturnim i hemijskim karakteristikama kompleksa i nukleofila. Reakcija supstitucije sa tioureom je proučavana na tri različite temperature (288, 298 i 310 K). Negativna entropija aktivacije DS = potvrđuje asocijativni način aktivacije. Formiranje kompleksa [Ru(trpi)(bpi)H2O]2+ sa ligandima ...... (1995) Inorg Chim Acta 231:57 14. Vilaplana R, Romero M, Quiros M, Salas J, Gonzalez-Vilches F (1995) Met-Based Drugs 2:211 15. Chatterjee D, Mitra A, De GS (2006) Platinum Met Rev 50:2 16. Alessio E, Mestroni G, Nardin G, Attia WM, Calligaris M, Sava G, Zorzet S (1988) Inorg Chem 27:4099 17. Sava ...
... mechanism, and equilibrium studies of the reactions between a ruthenium(II) complex and some nitrogen- and sulfur-donor nucleophiles Aleksandar M. Mijatović, Ratomir M. Jelić, Jovana Bogojeski, Živadin D. Bugarčić, Biljana Petrović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду ...
... mechanism, and equilibrium studies of the reactions between a ruthenium(II) complex and some nitrogen- and sulfur-donor nucleophiles | Aleksandar M. Mijatović, Ratomir M. Jelić, Jovana Bogojeski, Živadin D. Bugarčić, Biljana Petrović | Monatshefte für Chemie - Chemical Monthly | 2013 | | 10.1007/s00706-013-1044-1 ...Aleksandar M. Mijatović, Ratomir M. Jelić, Jovana Bogojeski, Živadin D. Bugarčić, Biljana Petrović. "Kinetics, mechanism, and equilibrium studies of the reactions between a ruthenium(II) complex and some nitrogen- and sulfur-donor nucleophiles" in Monatshefte für Chemie - Chemical Monthly, Springer Science and Business Media LLC (2013). https://doi.org/10.1007/s00706-013-1044-1
-
Two new zincophosphates, (H3NCH2CH2NH3)2[Zn(m-PO4)2] and (NH4)[(H3N)Zn{(m-PO4)Zn}3]: Crystal structures and relationships to similar open framework zinco - and aluminophospates
Karanović Ljiljana, Poleti Dejan, Đorđević Tamara, Šutović Sabina. "Two new zincophosphates, (H3NCH2CH2NH3)2[Zn(m-PO4)2] and (NH4)[(H3N)Zn{(m-PO4)Zn}3]: Crystal structures and relationships to similar open framework zinco - and aluminophospates" in Journal of Solid State Chemistry 184 no. 9, 525 B St, Ste 1900; San Diego; CA 92101-4495:Academic Press (2011): 2506-2515. https://doi.org/10.1016/j.jssc.2011.07.030
-
Structural, Morphological and Electrical Properties of Multi-Doped Calcium Phosphate Materials as Solid Electrolytes for Intermediate Temperature Solid Oxide Fuel Cells
Mirković M. Miljana, Došen, M. Anja, Erić P. Suzana, Stojmenović D. Marija, Matović Z. Branko, Rosić A. Aleksandra (2018)Mirković M. Miljana, Došen, M. Anja, Erić P. Suzana, Stojmenović D. Marija, Matović Z. Branko, Rosić A. Aleksandra. "Structural, Morphological and Electrical Properties of Multi-Doped Calcium Phosphate Materials as Solid Electrolytes for Intermediate Temperature Solid Oxide Fuel Cells" in Science of Sintering 50 no. 1, Beograd:International Institute for the Science of Sintering, Belgrade, Serbia (IISS) (2018): 95-109. https://doi.org/10.2298/SOS1801095M
-
Structural, Morphological and Electrical Properties of Multi-Doped Calcium Phosphate Materials as Solid Electrolytes for Intermediate Temperature Solid Oxide Fuel Cells
Mirković Miljana M., Došen Anja M., Erić Suzana P., Stojmenović, Marija D., Matović Branko Z., Rosić Aleksandra A. (2018)Mirković Miljana M., Došen Anja M., Erić Suzana P., Stojmenović, Marija D., Matović Branko Z., Rosić Aleksandra A.. "Structural, Morphological and Electrical Properties of Multi-Doped Calcium Phosphate Materials as Solid Electrolytes for Intermediate Temperature Solid Oxide Fuel Cells" in Science of Sintering 1 no. 50, Beograd:Međunarodni Institut za nauku o sinterovanju (2018): 95-109. https://doi.org/https://doi.org/10.2298/SOS180
-
Upper Miocene depositional environments of the Kikinda-Mokrin High (Serbia)
Saša Ivanišević, Dejan Radivojević (2018)Exploration for oil and gas in mature areas, such as the Pannonian Basin, can benefit from reexamination of old data using more advanced modern workflows that focus on the temporal and spatial aspects of sediment deposition. Specifically, we apply a new environment of deposition model that interprets the Upper Miocene- Pliocene sediments as being deposited in a rapidly filling basin characterized by quick shelf edge progradation from the northwest toward the southeast. Reconstruction of this shelf edge trajectory reveals ...Saša Ivanišević, Dejan Radivojević. "Upper Miocene depositional environments of the Kikinda-Mokrin High (Serbia)" in Interpretation, AAPG SEG (2018). https://doi.org/10.1190/INT-2017-0084.1
-
BEYOND 2020 - Geology explorations and open pit activities affectation in reclamation designing in Kolubara Coal Mines (KCM) Serbia, new considerations
Geology explorations in KCM runs from 1936. year up to these days and still ongoing. Results in >7,200 drill holes with ≈600,000 m of core drilling and gave lignite ore resources of > 4,1Bt, which 1,15Bt are excavated since 1986. of XIX up to early years of XXI century. For further mining operations in open pits stay 1,5Bt of lignite. Under waste heaps are ≈80 km2, additional 85 km2 should be filled. All of that masses/areas were, are ...Bojan Dimitrijević, Bogoljub Vučković, Radmila Gaćina. "BEYOND 2020 - Geology explorations and open pit activities affectation in reclamation designing in Kolubara Coal Mines (KCM) Serbia, new considerations" in 17th International Conference of the open and underwater mining of minerals, Sts. Constantine and Helena Resort, Varna, 18-22 September, Bulgaria, Sofia, Bulgaria : Scientific and Technical Union of Mining, Geology and Metallurgy, (2023)
-
Optimizacija vodosnabdevanja podzemnim vodama u Srbiji
Dušan Polomčić, Zoran Stevanović, Petar Dokmanović, Vesna Ristić-Vakanjac, Bojan Hajdin, Saša Milanović, Dragoljub Bajić (2012)... Vodoprivredne osnove Srbije, ukupno se zahvata oko 23 m*/s podzemnih voda (Tabela 1). Tabela 1. Izdasnosti izvorista podzemnih voda u Srbiji prema tipu vodonosne sredine (m*/s) Table 1. Yield of groundwater sources in Serbia according to the type of aquifer (m/s) Osnovni Hidrogeoloska Aluviialni vodonosni ...
... 30% obnovljivih rezervi podzemnih od ukupno procenjenih 67 m 3 /s. U radu su prikazane rezerve i stanje aktuelnog zahvatanja podzemnih voda po zastupljenim tipovima izdani. Primenom prihranjivanja i regulacijom izdani obezbediti dodatnih 40 m 3 /s vode. U radu je prezentovan presek stanja po pitanju ...
... around 30% of the renewable groundwater reserves is being used of the estimated 67 m 3 /s. The work presents the reserves and state of the current groundwater tapping according to specific aquifer types. An additional 40 m 3 /s can be secured through aquifer regulation and artificial replenishment. ...Dušan Polomčić, Zoran Stevanović, Petar Dokmanović, Vesna Ristić-Vakanjac, Bojan Hajdin, Saša Milanović, Dragoljub Bajić. "Optimizacija vodosnabdevanja podzemnim vodama u Srbiji" in Zbornik radova XIV srpskog simpozijuma o hidrogeologiji sa međunarodnim učešćem, Zlatibor, 17-20. maj 2012. godine , Beograd : Rudarsko-geološki fakultet (2012)
-
Tl(I) sequestration by pharmacosiderite supergroup arsenates: synthesis, crystal structures and relationships in Tl(I)–M(III)–As(V)–H2O (M = Al, Fe) system
Tamara Đorđević, Tarik Karasalihović, Michael Stöger-Pollach, Ljiljana Karanović. "Tl(I) sequestration by pharmacosiderite supergroup arsenates: synthesis, crystal structures and relationships in Tl(I)–M(III)–As(V)–H2O (M = Al, Fe) system" in Mineralogy and Petrology, Springer Science and Business Media LLC (2023). https://doi.org/10.1007/s00710-023-00823-4
-
Concepts for Improving Machine Learning Based Landslide Assessment
Miloš Marjanović, Mileva Samardžić Petrović, Biljana Abolmasov, Uroš Đurić. "Concepts for Improving Machine Learning Based Landslide Assessment" in Natural Hazards GIS-based Spatial Modeling Using Data Mining Techniques, Advances in Natural and Technological Hazards Research, volume 48, Springer Nature Switzerland AG 2019 (2019). https://doi.org/10.1007/978-3-319-73383-8_2
-
Application of ERT in the study of debris-flow source area: Case study Selanac debris flow
Dragana Đurić, Jelka Krušić, Biljana Abolmasov. "Application of ERT in the study of debris-flow source area: Case study Selanac debris flow" in 11th Congress of the Balkan Geophysical Society, Volume 2021, Online-Romania, 10 -14. Oct 2021,, European Association of Geoscientists & Engineers (2021). https://doi.org/10.3997/2214-4609.202149BGS15
-
Linear-motor plunger pump increases lifting efficiency
Bojan Martinović, Dušan Đekić, Dušan Danilović, Pavel Isaev. "Linear-motor plunger pump increases lifting efficiency" in Oil & Gas Journal (2022)
-
Poboljšanje geotehničkih uslova izgradnje nasipa upotrebom geosintetika
Anastasija Radovanović (2024)Za potrebe izrade rada na Master akademskim studijama ,,Rudarsko-geološkog fakulteta,,, studijskog programa Geotehnika, pod mentorstvom prof. dr Gordane Hadži-Niković , izvršena je detaljna analiza stabilnosti kosina nasipa na Vranjskoj petlji. Geotehnička istraţivanja i ispitivanja terena izveo je “Zavod za geotehniku iz Instituta za puteve a.d. Beograd”, a investitor je “Javno preduzeće, Putevi Srbije”.Metodološki pristup koji je korišćen za analizu stabilnosti kosina nasipa jeste kabinetsko istraživanje dostavljene dokumentacije i geostatički proračuni analize stabilnosti kosina nasipa, korišćenjem savremenih softverskih alata.Krajnji zaključak izvedenih istraţivanja je da ...... ypeheH M 36ujeH. Hacun npxaBHor rnyra lIb-442 v nokanHMXx caobpahajHMua on npobuHe M neCKOBMTOr M uIrbyHKOBMTOr MaTepujana. Sa Hacune je yrnaBHOM KDpI/ILUheH MaTepMjal'I M3 nocmjehmx KkaMeHoO:;oMa M UITbyHKOBMTO-TeCKOBMTM nero3MTM M3 J. Mopane. Hacun ucno/n konoBo3a je TexHMukuM ypef}eH M 36\jeH ...
... slojeva geosintetika m, dobija se da je: _ M+ Žž Ti i E s MD 13 ym Slika 4.3 – Stabilnost kosine sa kružnom kliznom površinom ojačane sa m redova geosintetika gdje Je: – Ti- sila u geosintetiku u sloju i - yi- krak sile T; u odnosu na centar rotacije O – _ m- broj slojeva geosintetika ...
... Moment=4808.44 kN-m Driving Moment=7050.06 kN-m Resisting Horizontal Force=73.6977 kN Driving Horizontal Force=108.054 kN 60 70 80 90 1? 0 90 80 Safety Factor 0. .500 .000 .500 .000 .500 .000 .500 .000 .500 .000 .500 .000+ o OI OI m m OO . N NTE ...Anastasija Radovanović. Poboljšanje geotehničkih uslova izgradnje nasipa upotrebom geosintetika, 2024
-
Design of a sucker rod pumping system
Ana Ponoćko (2024)For a long time in the history of oil production, sucker rod pumps have been the first and in many cases the only choice when it comes to mechanical extraction methods. Proper selection of each individual element of the system enables optimization, which entails benefits in the form of increased efficiency and reduced costs. The first part of the paper presents the underground and surface equipment of the rod pump and describes the operation of the entire system. The ...... function of the formation volume factor, the oil formation volume factor Bo (m*/m*), and the water formation volume factor Bw (m?/m?): qo+qw 32 n qoBo+qwBw — qo - oil production, (m*/m*) — qw- water production, (m?/m?) If all the gas passes through the pump, the volumetric efficiency increases ...
... Wi I I I I I I | I I I I I I -š i •— i m. m.s..mn .:wš·.m w m j m m·:.·&·n.•um·,!_&· “ m MALULIKKKIKI ı- - K -. | i WLa| — . } _ || || -8 ı- | || || | m ” l I I I I I I I I _\n S E I K K N K U E - y r ...
... lo ci ty (m /s ) e PR Ve lo ci ty (m /s ) e 0 MK 2 % “ M O NM M % 0 '#4”Rn 8 3 ć&s20 x 16 20 &&340 28 «' «%#%O PR Positon (cm) Crank Angle (degrees) Plunger Veloctty Plot Maximum Upstroke Polished Rod Velocity (m/s) : ,638 Maximum Downstroke Polished Rod Velocity (m/s) : 651 Maximum ...Ana Ponoćko. Design of a sucker rod pumping system, 2024
-
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