Претрага
411 items
-
Phase relations and physical indicators of municipal waste from old landfills in Serbia
Due to certain similarities of municipal waste and soil, usually for the determination of basic parameters of physical state, laboratory and field tests which are common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different values of indicators of municipal waste physical state can be found in the literature. The basic reasons should be found in different definitions and methods that researchers use ...municipal waste, moisture content, unit weight, specific gravity, grain size distribution, porosityGeneral Computer Science... particles Vs 1-n 'Volume water v m*/m* v= V Zw.J0 content -% V Yw Volume gas a m*/m* a _&_ n_w content -% a Saturation g m*/m* S =&=X degree ii -% ii Vp The three-phase system for municipal waste does not take into account a fact that the composition and thus the volume of organic materials ...
... the phase composition and physical indicators of iušLte008| Y Horanalysis| municipal waste. In addition, physical properties of •n žž% M:s| ; H n pj ii r waste change over time, both in depth and from · · O waste- location to location, so the method of taking and O selection of representative samples ...
... testing (Figure 1). Because of the fact that waste components cannot be easily identified, as well as because differences in the choice m #i.i| ii J5] Fig. 1. The applied procedure of municipal waste classification. The main objective of this methodology is to increase the accuracy and c ...Dragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić. "Phase relations and physical indicators of municipal waste from old landfills in Serbia" in Japanese Geotechnical Society Special Publication, The Japanese Geotechnical Society (2021). https://doi.org/10.3208/jgssp.v09.cpeg016
-
Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala
Srđan B. Stanković (2016-09-11)Jezero Robule, formirano u podnožju rudničke raskrivke Oštreljski planir (Rudnik bakra Bor), je nastalo kao posledica rudarskih aktivnosti. Mikrobiološki diverzitet ekstremno kiselog jezera Robule ispitivan je primenom kako klasičnih mikrobioloških metoda (svetlosna mikroskopija i kultivacija na selektivnim podlogama) tako i primenom savremene metode molekularne biologije (analiza polimorfizama terminalnih restrikcionih fragmenata; T-RFLP). Takođe, ispitivan je i potencijal i efikasnost jezerske vode u biološkom luženju mineralnog koncentrata, kao i u bioluženju uzoraka stare flotacijske jalovine Rudnika bakra Bor.Na osnovu dobijenih rezultata ...... 0,5O2→ Fe2(SO4)3 + H2O (4) Gvožđe(II)sulfat stimuliše rast populacija acidofilnih bakterija, koje veoma efikasno oksiduju Fe(II) do Fe(III). Gvožđe(III)sulfat potom ponovo oksidiše pirit (3), što dovodi do oslobađanja nove količine gvožđe(II)sulfata koji dalje stimuliše rast populacija ...
... U kontaktu sa kiseonikom i vodom, dolazi do oksidacije pirita, pri čemu nastaju gvožđe(II)sulfat i sumporna kiselina (Dimitrijević, 2013): 2FeS2 + 7O2 + 2H2O →2FeSO4 + 2H2SO4 (1) Gvožđe(II)sulfat se dalje oksiduje u prisustvu kiseonika do gvožđe(III)sulfata: 2FeSO4 + H2SO4 ...
... acidofilnih bakterija obezbeđuju energiju oksidacijom Fe(II) u Fe(III). Oslobođenu energiju zatim koriste za sintezu organskih molekula iz ugljen-dioksida i vode u procesu hemosinteze (Tribusch and Rojas-Chapana, 2007). Oksidacija gvožđe(II)sulfata dejstvom acidofilnih mikroorganizama se može prikazati ...Srđan B. Stanković. "Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-11)
-
SWOT analiza energetskog potencijala Livanjskog basena
Simić Dušan, Lazarev Slobodanka, Mihajlović Božidar, Vasojević Ljiljana, Ljubičić Milan, Simić Vladimir (2011)Simić Dušan, Lazarev Slobodanka, Mihajlović Božidar, Vasojević Ljiljana, Ljubičić Milan, Simić Vladimir. "SWOT analiza energetskog potencijala Livanjskog basena" in Stanje i perspektive u rudarstvu i održivi razvoj, Rudarstvo 2011, Zbornik radova II Simpozijuma sa međunarodnim učešćem, Vrnjačka banja, Beograd:Privredna komora Srbije (2011): 325-337
-
Primena bazičnih stena u zavisnosti od njihovog kvaliteta
Mihajlović Božidar, Simić Dušan, Lazarev Slobodanka, Ljubičić Milan, Simić Vladimir. "Primena bazičnih stena u zavisnosti od njihovog kvaliteta" in Stanje i perspektive u rudarstvu i održivi razvoj, Rudarstvo 2011, Zbornik radova II Simpozijuma sa međunarodnim učešćem, Vrnjačka banja, Beograd:Privredna komora Srbije (2011): 682-689
-
Bespilotne letelice u rudarstvu Srbije
Gojković Zoran, Mikanović Radenko, Miloradović Goran, Milutinović Aleksandar, Ganić Aleksandar (2016)Gojković Zoran, Mikanović Radenko, Miloradović Goran, Milutinović Aleksandar, Ganić Aleksandar. "Bespilotne letelice u rudarstvu Srbije" in II Rudarsko-geološki forum “Stanje i pravci razvoja rudarstva i geologije u Republici Srpskoj”, Prijedor, Republika Srpska:Univerzitet u Banjoj Luci, Rudarski fakultet Prijedor, Savez inženjera rudara i geologa Republike Srpske (2016): 177-185
-
Extraction of Bilingual Terminology Using Graphs, Dictionaries and GIZA++
Branislava Šandrih, Ranka Stanković (2020)U nauci, industriji i mnogim istraživačkim oblastima, terminologija se brzo razvija. Najčešće, jezik koji je „lingua franca“ za većinu ovih oblasti je engleski. Kao posledica toga, za mnoga polja termini domena su koncipirani na engleskom, a kasnije se prevode na druge jezike. U ovom radu predstavljamo pristup za automatsko izdvajanje dvojezične terminologije za englesko-srpski jezički par koji se oslanja na usaglašeni dvojezični korpus domena, ekstraktor terminologije za ciljni jezik i alat za usklađivanje delova. Ispitujemo performanse metode na domenu ...... after initial filtering using English terms (Processing ii): (S(align.chunk) ∼ S(term)), where the list of English terms depends on the choice of parameter 1 (the English part of LIS- dict or obtained from the corpus by using Eng-TE for extraction). II Number of aligned chunks after subsequent filtering ...
... 2014).1 The Serbian part has 301,818 simple word forms (41,153 different), while the English part has 335,965 simple word forms (21,272 different). ii A list of terms in the source language, denoted as S(term). This list can be either an external resource from the same domain or extracted from the text ...
... the aligned corpus (Input i) we used LIS-corpus alone, or augmented with bilingual pairs from the bi-list. For the extraction of English terms (Input ii) we used the English side of the dictionary LIS- dict in one series of experiments, and term extractor Eng-TE in the other, while the extraction of ...Branislava Šandrih, Ranka Stanković. "Extraction of Bilingual Terminology Using Graphs, Dictionaries and GIZA++" in Infotheca, Faculty of Philology, University of Belgrade (2020). https://doi.org/10.18485/infotheca.2019.19.2.6
-
Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)
Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović (2014)Sphene (CaTiSiO5), a calcium titanosilicate ceramic has been prepared from a powder mixture of CaCO3, TiO2 and SiO2 using vibro-milling for homogenization and activation of precursors. During the highpressure and high-temperature synthesis (HPS) process at 4 GPa and 1,200 °C, sphene undergoes into phase transition, from room-temperature phase P21/a to high-temperature phase A2/a. Evidence of that structural phase transition is given in this paper using infrared, Raman spectroscopy and X-ray powder diffraction. Rietveld refinement was employed to get the ...Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović. "Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)" in Physics and Chemistry of Minerals, Springer Science and Business Media LLC (2014). https://doi.org/10.1007/s00269-014-0693-x
-
Replica of the “Great Triangle Gold Nugget” Belonging to Belgrade University Collection, Gilded or Not?
... old and numerous mineral collection which numbered 1525 samples donated by the St. Petersburg’s State Mining Institute of the empress Catherine II (precursor of Saint Petersburg State University) to the Mineralogical Cabinet of Great School of Belgrade (precursor of Belgrade University) in ...
... visible on the surface itself. The acknowledgement that this gypsum model is gilded indicates that the collection donated by the Empress Catherine II State Mining Institute of St. Petersburg had exceptional value, which obliges us to treat it with great care. In this regard, it is planned that ...Alena Zdravković, Maja Milošević, Ivana Jelić. "Replica of the “Great Triangle Gold Nugget” Belonging to Belgrade University Collection, Gilded or Not?" in 8th Mineral Sciences in the Carpathians Conference, Acta Mineralogica-Petrographica, Miskolc, Hungary, Department of Mineralogy, Geochemistry and Petrology, University of Szeged, Szeged, Hungary (2021)
-
Synthesis and characterization of nanostructured Ca0.9Er0.1MnO3
Tijana B. Vlašković, Bojana Laban, Maja Milošević, Maria Čebela, Vladimir Dodevski, Milena Rosić (2023)... sagorevanja su korišćene sledeće hemikalije: saharoza CxjaH»Oni koja ima dvostruku ulogu i goriva i kompleksanta, kalcijum-nitrat tetrahidrat, mangan(II)-nitrat hidrat i erbijum(III)-nitrat pentahidrat. Nitrati metala i saharoza su kombinovani u njihovim odgovarajućim stehiometrijskim odnosima da bi ...
... During this combustion method, sucrose Ci.H»Ori which is both fuel and complexant and metal ions in the form of calcium nitrate tetrahydrate, manganese(II) nitrate hydrate, erbium(III) nitrate pentahydrate were used. Metal nitrates and sucrose were combined to prepare this nanostructured in their appropriate ...Tijana B. Vlašković, Bojana Laban, Maja Milošević, Maria Čebela, Vladimir Dodevski, Milena Rosić. "Synthesis and characterization of nanostructured Ca0.9Er0.1MnO3" in Book of Abstracts Proceedings / 59th Meeting of the Serbian chemical society, Novi Sad, Serbia, June 1-2, 2023, Belgrade : Serbian Chemical Society (2023)
-
Strukture kristala - odabrana poglavlja iz kristalografije i njena multidisciplinarnost
Ljiljana Karanović (2024)Ljiljana Karanović. Strukture kristala - odabrana poglavlja iz kristalografije i njena multidisciplinarnost, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet, 2024
-
Praktikum iz Tehnologije materijala
Suzana Lutovac, Miloš Gligorić, Luka Crnogorac. Praktikum iz Tehnologije materijala, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2023
-
Примена нумеричких метода у моделовању тецишта са освртом на различите реолошке услове
Јелка Крушић (2023)Тецишта су комплексне појаве нестабилности које захтјевају истраживања и испитивањакоја до сада нису рађена код нас у области геотехнике. По механизму, начину активирањаи понашању покренутог материјала се знатно разликују од клизишта. Циљ оведисертације је била примјена нумеричких модела пропагације тецишта на примјеру двијепојаве које су се десиле у Србији као посљедица дјеловања циклона Тамара. Детаљноистраживање тецишта подразумијева теренско картирање, теренска истраживања илабораторијска испитивања одабраних узорака са терена. Од теренских истраживања напримјеру тецишта Селанац урађена су геофизичка истраживања Електричнетомографије док ...тециште, нумерички модели пропагације, циклон Тамара, геофизичка истраживања, лабораторијска испитивања, Селанац, Лева река, RAMMS, SPH geoflow, реолошки моделЈелка Крушић. Примена нумеричких метода у моделовању тецишта са освртом на различите реолошке услове, Београд : Универзитет у Београду, Рударско - геолошки факултет, 2023
-
Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases
Ispitivani su uticaji primene mono- i dvokomponentnih organskih modifikatora na određivanje lipofilnosti 12 tetradentatnih Šifovih baza metodom reverzno-fazne tankoslojne hromatografije. Osnovni cilj je da se proceni tip interakcije između posmatranih jedinjenja i komponenti primenjenih hromatografskih sistema i uspostavi neki obrazac ponašanja kako bi se lakše izabrala kombinacija organskih modifikatora koji će simulirati interakciju u biološkim sistemima na osnovu činjenica da iste osnovne intermolekularne interakcije su odgovorne za ponašanje supstanci i u biološkom i u hromatografskom sistemu. Primenjeni organski modifikator ...Nikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić. "Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases" in Chemical Papers, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s11696-021-01884-5
-
A Fuzzy Expert Model for Availability Evaluation
Each technical system within itself carries the great potential danger of possible occurrence of failure and damages. Mining machines are characteristic by great investment values, costs of unplanned shutdowns, complex working conditions, and environment and workers hazards. Systematic monitoring of the mining machinery is of great importance for the management of the mining companies. Availability is the overall concept of quality of service. Includes information regard to operating state, an idle state, a standby state and shut down. The ...... analyze of obtaining results for bulldozers availability evaluation TABLE II. DETERMINED AVAILABILITY ON THE BASE OF MEASURED TIME STATE PICTURE PARAMETERS Liebherr Year t1, [h] t2, [h] A(t) I 3372 334 0,91 0,89 II 4100 498 0,89 III 4325 431 0,91 IV 3601 449 0,89 V 1438 234 0,86 ...
... Caterpillar Year t1, [h] t2, [h] A(t) I 3415 262 0,93 0,90 II 3631 367 0,91 III 4296 494 0,90 IV 4127 445 0,90 V 2894 387 0,88 Dressta Year t1, [h] t2, [h] A(t) I 3476 384 0,90 0,84 II 3102 572 0,84 III 2635 622 0,81 IV 2757 664 0,81 V 2008 343 0,85 V. CONCLUSION Bulldozers ...
... used for the improvement of maintenance and logistics procedures and additionally, could be used as a support during the purchase of new machines. II. AVAILABILITY EVALUATION Availability is the probability that an item will be in an operable and committable state at the start of a mission when ...Dejan Ivezić, Miloš Tanasijević, Predrag Jovančić, Radiša Đurić. "A Fuzzy Expert Model for Availability Evaluation" in Proceedings of the 2019 20th International Carpathian Control Conference (ICCC), AGH University of Science and Technology, Kraków - Wieliczka, Poland (2019)
-
BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties
Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković (2023)To investigate the influence of spinel structure and sintering temperature on the functional properties of BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface from acetylacetonate precursors. As-prepared powders were additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the detailed examination of phase composition and morphology. The magnetic, dielectric, and ...ferroelectric, dielectric properties, magnetic properties, titanate/ferrite composites, phase composition... 731–735. [CrossRef] Garcia, A.R.; Laverat, A.G.; Prudencio, C.V.R.; Mendez, A.J. Synthesis and thermal decomposition of Co(IID), Ni(II), Cu(I1), Zn(II), Cd(II), and Pb(II) m-benzenedisulphonates. Thermochim. Acta 1993, 213, 199-210. [CrossRef] Fereshteh, Z.; Salavati-Niasari, M. Effect of ligand on ...
... A Chem. 2005, 228, 283-291. [CrossRet] 'umar, N.; Kachroo, P.L.; Kant, R. Thermal decomposition of some N-oxide complexes of cobalt(II), nickel(II) and copper(II) carboxylates. J. Therm. Anal. 1979, 17, 81–85. [CrossRef] Dollimore, D.; Pearce, J. Changes in the surface characteristics of residues ...
... complexes ({Fe(acac),3], [Ni(acac).], and [Zn(acac)»], where acac presents acetylacetonate anion). The iron(III) acetylacetonate, nickel(II) acetylacetonate, and zinc(II) acetylacetonate were synthesized in a reaction of appropriate metal ions (Fe3+, Ni?*, Zn?**) with ammonium acetylacetonate. The synthesis ...Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković. "BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties" in Inorganics, MDPI AG (2023). https://doi.org/10.3390/inorganics11020051
-
An Efficient Class of Iterative Root-Finding Methods with Applications
Dejan Ćebić, Nebojša Ralević (2021)Dejan Ćebić, Nebojša Ralević. "An Efficient Class of Iterative Root-Finding Methods with Applications" in 2021 IEEE 19th International Symposium on Intelligent Systems and Informatics (SISY), IEEE (2021). https://doi.org/10.1109/SISY52375.2021.9582495
-
FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina
... 1 ~ ||gi a)ž 2nd dervate Š | b) JI š š |} š ii s e š H || i š } ž Š | e š - H H 1 a Fi i i NMA 41 “0 — s%0 ~ 300 ~ 3%0 __3MO _1%O0 _ 4M00 00 400 30 3000 3800 2000 Wavenumber (cm') Wavenumber (cm') šžg C), &h ı NA d) . HDTMA š A OE ii |} “ LIJPI | Mig ~FML_R “ š |- L šš s i s BOA ...
... University of Kragujevac on a infrared spectrometer (Equinox 55, Bruker Optics) equipped with a single reflection diamond ATR accessory (Dura Sample IR II, SensIiR). The samples were prepared in a form of KBr disk, and the spectra (averaged on 32 scans) were collected in the range of 4000-450 cm'!, at ...
... Wavenumber {cm ) Wavenumber {cm ') š 18p f) PTMA |j | |ž š \|E a E 13 i - PMV A | i n g"VA/B i g .| š P E Hi )s i . H | Š PONE! š i || || š . } ii |j | ı || || _MO |1 315 /WAW M | - Ć 4000 300 2000 1000 2000 1500 1000 Wavenumber (cm ) Wavenumber (cm } Figure 1. FTIR spectra of a) Na-m ...Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević. "FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina" in Book of Proceedings / 3rd International and 15th National Congress Soils for Future Under Global Challenges, 21-24 September 2021 Sokobanja, Serbia , Belgrade : Serbian Society of Soil Science (2021)
-
Crystal structure of K3EuSi2O7
alkalni silikati elemenata retkih zemalja, kristalna struktura, sinteza metodom fluksa, rendgenska difrakcija na monokristalu... structure was refined on F2 by full-matrix least-squares techniques using the programs SHELXL.20 Selected bond lengths and angles are presented in Table II. All figures of the crystal structures were prepared using the program VESTA.21 TABLE I. Experimental details. Crystal data Data collection Chemical ...
... Radiation type Mo Kα No. of reflections 528 µ / mm−1 9.39 No. of parameters 40 Crystal size, mm 0.27×0.04×0.04 Δρmax; Δρmin / e Å−3 1.01; - 0.69 Table II. Selected geometric parameters for K3EuSi2O7. Symmetry codes are given in footnotes Bond length, Å Bond length, Å K1‒O1 2.770 (5) K3‒O2xii 2 ...
... O1iii‒Si1‒O2xviii 110.9 (2) O2xviii‒Si1‒O3 110.5 (4) O1ii‒Si1‒O2xviii 110.9 (2) Si1‒O3‒Si1xvii 136.7 (6) O1iii‒Si1‒O3 106.7 (2) ix−y, −y, z; ii−y+1, x−y, z; iii−x+1, −x+y, z; ivy, −x+y, −z; vx, x−y, −z; v−x+1, −x+y, −z+1/2; viix−y, −y, −z+1/2; viiiy, x−1, z; ixy, x−1, −z+1/2; x−x+y, y, −z; xiy ...Sabina Kovač, Predrag Dabić, Aleksandar Kremenović. "Crystal structure of K3EuSi2O7" in Journal of the Serbian Chemical Society, National Library of Serbia (2021). https://doi.org/10.2298/JSC210218026K
-
Mineragenija i potencijalnost karbonatnih sirovina rudnog reona Bjelopavlića (Crna Gora)
Darko M. Božović (2016-09-28)Karbonatne sirovine, obzirom na geološku građu Crne Gore predstavljaju jednu od najznačajnijih nemetaličnih mineralnih sirovina. U Crnoj Gori postoje brojna leţišta karbonatnih sirovina (arhitektonsko - građevinskog i tehničko - građevinskog kamena) koja su istraţena ili su u eksploataciji, među kojima rudni reon Bjelopavlića zauzima najznačajnije mjesto.Dosadašnja istraţivanja karbonatnih sirovina na ovom području imala su, međutim, prevashodno uzak istraţivački cilj, utvrđivanje rezervi arhitektonsko - građevinskog i tehničko - građevinskog kamena određenog leţišta, ili preliminarna ispitivanja kvaliteta krečnjaka u njima, sa ...karbonatne mineralne sirovine, arhitektonsko - građevinski kamen, tehničko - građevinski kamen, karbonatna punila, rudni reon Bjelopavlića, potencijalnost.... dubokovodni karbonati II/1 Gornjokredni pelaški karbonati II/1a Pelaški i hemipelaški krečnjaci tipa “Jovanovići” Pojave: Jovanovići, Lalevići II/2 Gornjokredni padinski karbonati II/1b Alodapski krečnjaci tipa “Rsojevići” Pojave: Slap Karbonatni kompleks sedimenata gornje krede ...
... -50 -40 -30 -20 -10 0 e n d o (20-1000) o C-43,31% DTA TG 50/1 PD-1/09 T [ o C] T G [ % ] -100 -80 -60 -40 -20 0 20 890 o C D T A [ V ] Slika 4.10: Termički dijagrami (DTA/TG) uzorka krečnjaka PD-1/10 (Pješivački do) 0 200 400 600 800 1000 -50 -40 ...
... stvaranja, sa dva definisana formaciona tipa krečnjaka: II/1. Rudna formacija gornjokredni pelaški karbonati II.1.1. Pelaški i hemipelaški krečnjaci tipa “Jovanovići“ II/2. Gornjokredni padinski karbonati ili karbonati padinski zastora II.2.1. Alodapski krečnjaci tipa “Rsojevići“ D. Božović: ...Darko M. Božović. "Mineragenija i potencijalnost karbonatnih sirovina rudnog reona Bjelopavlića (Crna Gora)" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-28)
-
English for Geology Students. 2
Lidija Beko (2023)... E .N2 Reading Comprehension..........ii. OIL AND NATURALGAS....... ttt Vocabulary............. a a Reading Comprehension..........ii ı METALS AND GEMSTONES. ... \orgloyulkto/oooooe o obopooopag abodoao000000 } 0000 0000 Reading Comprehension..........ii c Grammar spot........... ttt Exercises ...Lidija Beko. English for Geology Students. 2, Belgrade : The Faculty of Mining and Geology, 2023