Претрага
845 items
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Analiza rada električnih centrifugalnih pumpi
Milica Stanojević (2024)Ovaj rad analizira rad električne centrifugalne pumpe (ESP) u naftnoj industriji, sa fokusom na problem taloženja kamenca (karbonatnih naslaga) unutar sistema. Električne centrifugalne pumpe (ESP) predstavljaju srce mnogih naftnih bušotina. Njihova visoka pouzdanost i sposobnost rada u zahtevnim uslovima čine ih neophodnim za stabilnu i kontinuiranu proizvodnju.Senzori igraju ključnu ulogu u praćenju rada ESP sistema i detekciji ranih znakova taloženja kamenca. Problem taloženja kamenca je izuzetno značajan, jer može dovesti do smanjenja efikasnosti pumpe, povećanja troškova održavanja, i dugoročnih zastoja ...... centifugalnih pumpi 40%0 kraća dužina motora Prednosti motora sa stalnim magnetom Efikasnost pri nazivnoj snazi Faktor snage Radna struja, B MSSM Struja praznog hoda BiM Slika 3.2.1.1 Poređenje MSSM ı IM (Bafghi & Vahedi, 2018). 3.2.1.2 Stator Stator je nepokretni deo motora te je ujedno ...
... određenog prečnika. Jezgra statora sačinjena su od tankih prešanih slojeva štancanog ugljenog čelika u sredini i bakra na krajevima (Fetoui, 2017 b). U otvorima na laminacijama smešteni su namotaji od bakrenih žica zaštićeni izolacijom. Kućište je na krajevima spojeno na bazu i glavu motora. Odabir ...
... razlikuju se dva tipa zaptivne sekcije a to su sekcija podeljena pregradama tJ. „lavirint“ sekcija, te sekcija s elastomernim mehom (Fetoui, 2017 b). 16 Analiza rada električnih centifugalnih pumpi 3.2.2.1 Sekcija podeljena pregradama Ovaj tip sekcije omogućava izravan kontakt bušotinskog ...Milica Stanojević . Analiza rada električnih centrifugalnih pumpi, 2024
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Quantitative landslide risk assessment in the city of Tuzla
In the climate-changing conditions, geological environment interacts more dramatically with the urban fabric than before. The urbanization is expansive and more aggressive than before, but so are the weather extremes and long-term climate trends. In effect, many processes which can be triggered by either side, nature or engineering, are becoming more pervasive than before, and such is the case with landslides. Dealing and managing landslides requires few crucial steps, starting from collecting data on landslide location and typology – ...... 199– 208. Marjanović, M., Kovačević, M., Bajat, B., Voženílek, V., (2011) “Landslide susceptibility assessment using SVM machine learning algorithm”. Engineering Geology 123 (3): 225–234. Marjanović, M., Samardžić-Petrović, M., Abolmasov, B., Đurić, U. (2019) “Concepts for improving machine ...
... University of Belgrade Faculty of Mining and Geology, Đušina 7, Belgrade, Serbia 2) Geological Survey of the Republic of Srpska, Vuka Karadzica 148 B, Zvornik, Bosnia and Herzegovina 3) Headquarters of Civil Protection Tuzla, Aleja Alije Izetbegovića4, Tuzla, Bosnia and Herzegovina 4) IBIS Engineering ...
... (2002) “Landslide risk assessment and management: an overview”. Engineering Geology 64(1): 65-87. Đurić, U., Marjanović, M., Radić, Z., Abolmasov, B. (2019) “Machine learning based landslide assessment of the Belgrade metropolitan area: Pixel resolution effects and a cross-scaling concept”. Engineering ...Miloš Marjanović, Biljana Abolmasov, Cvjetko Sandić, Miralem Mulać, Petar Begović. "Quantitative landslide risk assessment in the city of Tuzla" in SCG-Xiii International Symposium on Landslides. Cartagena, Colombia- February 22-26, 2021, International Society for Soil Mechanics and Geotechnical Engineering (2021)
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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 ...... based on their seating method into: • Bottom Seating Pumps (a) • Top Seating Pumps (b) • Double Seating Pumps (c) a 6) B) Figure 3.5. llustration of Insert Pumps by Seating Method [5] 18 (b) Rod . O Figure 3.6. Tubing pump and Insert Pump The main difference between these two ...
... s using actual data and examine the differences between RodStar, Prosper and QRod. Table 6.1. Input Well XX-1 H 5 B % o || B O Casing pressure -w |= s |Š B |5 – ~ š |ž n E || -1 3 |E |- | .. |-- : [j P m 120 WC . 76 Pump depth m 692 Tubing O.D ...
... plunger • Ap= pressure differential • G= clearance between the plunger and the cylinder • M= fluid viscosity • L=length ofthe plunger • Aand B= exponents The amount of leakage, or fluid loss through the clearance, is regulated by the size of the clearance and the length ofthe piston. The ...Ana Ponoćko. Design of a sucker rod pumping system, 2024
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Mio-Pliocene Geodynamics and its Stratigraphic Consequences in the Area of Avala Mt. (Belgrade, Serbia)
... & TRUBICHIN, V.M. (2013): Neogene regiostage stratigraphic scale of the South Russia: current state and perspectives, GIN RAS, 356–359. STUDENCKA, B. & JASINOWSKI, M. (2011): Bivalves from the Middle Miocene reefs of Poland and Ukraine: a new approach to Badenian/Sarmatian boundary in the Paratethys ...
... & TRUBICHIN, V.M. (2013): Neogene regiostage stratigraphic scale of the South Russia: current state and perspectives, GIN RAS, 356-359. STUDENCKA, B. & JASINOWSKI, M. (2011): Bivalves from the Middle Miocene reefs of Poland and Ukraine: a new approach to Badenian/Sarmatian boundary in the Paratethys ...Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević. "Mio-Pliocene Geodynamics and its Stratigraphic Consequences in the Area of Avala Mt. (Belgrade, Serbia)" in 7th International Workshop: Neogene of Central and South-Eastern Europe, Velika, Croatia, maj 2017, Croatian Geological Society (2017)
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Tectono-lithostratigraphic model of the Northern Banat Miocene sediments (Pannonian Basin, Serbia)
Dejan Radivojević, Ljupko Rundić (2017)... (2016): Synrift and postrift Miocene sediments of northern Banat, Ser- bia, Underground Mining Engineering, 28, 39–60. STOJANOVIĆ, K., JOVANČIĆEVIĆ, B., VITOROVIĆ, D., GOLOVKO, Y., PEVNEVA, G. & GOLOVKO, A. (2007): Evaluation of saturated and aromatic hydrocarbons oil–oil maturity correlation parameters ...
... (SE Pannonian Basin, Serbia). J. Serb. Chem. Soc., 72/12, 1237–1254. ŠOLEVIĆ, T., STOJANOVIĆ, K., BOJESEN‐KOEFOED, J., NYTOFT, H.P., JOVANČIĆEVIĆ, B. & VITOROVIĆ, D. (2008): Origin of oils in the Velebit oil‐gas ºeld, SE Pannonian Basin, Serbia – Source rocks characterization based on biological ...Dejan Radivojević, Ljupko Rundić. "Tectono-lithostratigraphic model of the Northern Banat Miocene sediments (Pannonian Basin, Serbia)" in 7th International Workshop: Neogene of Central and South-Eastern Europe, Velika, Croatia, maj 2017, Croatian Geological Society (2017)
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Molecular and Isotope Composition of Biomarkers in Immature Oil Shale and its Liquid Pyrolysis Products (Open and Closed System)
Gordana Gajica, Aleksandra Šajnovic, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević, Ksenija Stojanović (2021)The molecular and isotopic composition of biomarkers in initial bitumen isolated from raw immature oil shale samples from the Lower Miocene Aleksinac Basin (Serbia) and liquid products (LPs) obtained by pyrolysis in open (OS) and closed systems (CS) are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in LPs is determined. The molecular composition of the LPs from the OS pyrolysis is very similar to those in initial bitumen, independently ...... BIOMARKERS IN IMMATURE OIL SHALE AND ITS LIQUID PYROLYSIS PRODUCTS (OPEN AND CLOSED SYSTEM) G. Gajica1, A. Šajnović1, J. Schwarzbauer2, A. Kostić1, B. Jovančićević1, K. Stojanović1 1University of Belgrade, Serbia, 2RWTH Aachen University, Germany The molecular and isotopic composition of biomarkers ...
... system pyrolysis. References Gajica, G., Šajnović, A., Stojanović, K., Kostić, A., Slipper, I., Antonijević, M., Nytoft, H.P., Jovančićević, B., 2017. Oil Shale 34, 197–218. Larter, S.R., Solli, H., Douglas, A.G., de Lange, F., de Leeuw, J.W., 1979. Nature 279, 405– 408. Peters, K.E., Walters ...Gordana Gajica, Aleksandra Šajnovic, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević, Ksenija Stojanović. "Molecular and Isotope Composition of Biomarkers in Immature Oil Shale and its Liquid Pyrolysis Products (Open and Closed System)" in 30th International Meeting on Organic Geochemistry (IMOG 2021), European Association of Geoscientists & Engineers (2021). https://doi.org/10.3997/2214-4609.202134040
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Tectonothermal evolution of an asymmetric extensional system: the Juhor Mts in Central Serbia (Northern Serbomacedonian massif)
Miloš Radonjić, Uroš Stojadinović, Elco Luijendijk, Dejan Radivojević, Željko Golubović, Nikola Vuković (2018)... Trivić, B., Serafimovski, T., Tasev, G., Gerdjikov, I., Wetzel, A., 2016a. Pre‐Alpine evolution of a segment of the North‐Gondwanan margin: Geochronological and geochemical evidence from the central Serbo‐Macedonian Massif. Gondwana Res. 36, 523–544. Antić, M.D., Kounov, A., Trivić, B., Wetzel ...Miloš Radonjić, Uroš Stojadinović, Elco Luijendijk, Dejan Radivojević, Željko Golubović, Nikola Vuković. "Tectonothermal evolution of an asymmetric extensional system: the Juhor Mts in Central Serbia (Northern Serbomacedonian massif)" in 17th Serbian Geological Congress, Vrnjačka Banja, 17-20 maj 2018, Srpsko geološko društvo (2018)
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Synthesis, magnetic, thermal and structural properties of Co(II), Ni(II) and Cu(II) complexes containing isophthalato ligands
A series of novel ternary Co(II), Ni(II) and Cu(II) complexes containing 2,20-dipyridylamine (dipya), 2,20-bipyridine (bipy), and 1,10-phenanthroline (phen), as aromatic diamine ligands, and dianion of isophthalic acid (ipht) have been prepared by ligand exchange reactions from diluted H2O/EtOH solutions. The complexes were characterized by elemental analysis, IR spectroscopy, magnetic susceptibility measurements and TG and DSC analysis. Three complexes, Cu(dipya)(ipht)H2O (1), Co(dipya)(ipht)2H2O (2) and Cu(ipht)(phen)2H2O (5) are polymeric with bis-monodentate ipht, while the other two complexes M(bipy)(ipht)4H2O, M@Co(II) (3) and ...комплекси прелазних метала, карбоксилатни лиганди, N-лиганди, кристална структура, магнетна својстваJelena Rogan, Dejan Poleti, Ljiljana Karanović, Zvonko Jagličić. "Synthesis, magnetic, thermal and structural properties of Co(II), Ni(II) and Cu(II) complexes containing isophthalato ligands" in Journal of Molecular Structure, Elsevier BV (2011). https://doi.org/10.1016/j.molstruc.2010.11.024
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Развој хибридног модела за оптиматизацију завршне контуре одлагалишта у површинској експлоатацији лежишта минералних сировина
Aлександар Додеровић (2024)Површинска експлоатација минералних сировина захтијева претходно откопавање значајних( милионских) количина јаловине, које је неопходно транспортовати до локације на којој ће сеона трајно одложити. Традиционални приступ избора локације и дизајна одлагалишта се карактерише парцијалним приступом, заснованом на анализи неколико водећих критеријума као и на личном искуству инжењера, често занемарујући синергетски ефекат осталих утицајних фактора Технолошке операције које се односе на манипулацију јаловином, међу којима предњачи транспорт, генеришу највећи дио трошкова у површинској експлоатацији. Такође, цјелокупан процес експлоатације додатно је ограничен ...оптимизације завршне контуре одлагалишта, хибридни модел, површинска експлоатација, генетски алгоритамAлександар Додеровић. Развој хибридног модела за оптиматизацију завршне контуре одлагалишта у површинској експлоатацији лежишта минералних сировина, Београд : [А. Додеровић], 2024
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An update on the mineral-like Sr-containing transition metal arsenates
Tamara Đorđević, Ljiljana Karanović (2021)We report on the crystal structures of three novel synthetic SrM-arsenates (M = Ni and Fe3+), isostructural or structurally related to the minerals from tsumcorite, carminite and brackebuschite groups. They were synthesised under mild hydrothermal conditions and further characterised using single-crystal X-ray diffraction (SXRD), scanning electron microscopy with energy dispersive spectroscopy (SEMEDS) and Raman spectroscopy. SXRD and SEM-EDS yielded formulae: (I) SrNi2(AsO4)2·2H2O, (II) Sr1.4Fe3+ 1.6(AsO4)2(OH)1.6 and (III) SrFe3+(AsO4)(AsO3OH). All three structures are built up of slightly distorted MO6 octahedra ...арсенати метала, кристална структура, дифракција рендгенских зрака на монокристалима, хидротермална синтеза, Раманова спектроскопија, релевантна једињења у животној средини, арсенeochemistry and PetrologyTamara Đorđević, Ljiljana Karanović. "An update on the mineral-like Sr-containing transition metal arsenates" in Mineralogical Magazine, Mineralogical Society (2021). https://doi.org/10.1180/mgm.2021.41
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Human factor risk management procedures applied in the case of open pit mine
Snežana Kirin, Aleksandar Sedmak, Wei Li, Miodrag Brzaković, Igor Miljanović, Ana Petrović, Simon Sedmak (2021)Risk management aims to provide a controlled work environment to ensure the safe operation of the high-risk systems. It is a dynamic process which work in a continual state of change. The issue of human factor risk and rules and regulations in open pit mine is a main focus of this paper in order to develop predictive models of behavior of workers in relation to compliance with the procedures and rules. Presented survey was conducted in open pit coal ...Snežana Kirin, Aleksandar Sedmak, Wei Li, Miodrag Brzaković, Igor Miljanović, Ana Petrović, Simon Sedmak. "Human factor risk management procedures applied in the case of open pit mine" in Engineering Failure Analysis (2021). https://doi.org/https://doi.org/10.1016/j.engfailanal.2021.105456
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Određivanje broja kamiona za transport jalovine na površinskom kopu „Šuplja Stijena“
Siniša Bujišić (2024)U radu će se govoriti o praktičnoj primeni programskog paketa Talpac za određivanje broja kamiona za transport jalovine na površinskom kopu „Šuplja Stijena“, kao i o ulozi i značaju ovog programa u savremenom rudarstvu. Na osnovu ulaznih podataka i informacija vezanih za Šuplju Stijenu, uz pomoć programskog paketa Talpac izvršeno je projektovanje transportnih trasa. Transportne trase projektovane su tako da obezbede siguran rad ljudstva i opreme, a optimizovane su po pitanju transportnih dužina i organizacije proizvodnje. Kako bi se ...... 0O8 10 _ _2 16 18 20 gO g M O L B B E H, 9 | Bpoj kaMvoHa, Nk — 1-TeoperTcku kanauyrer (pnoTe kaMMOHa — 2- reopercku kanauurer 6arepa 3- ekcnnoaraunoHu kanauuyrer 6arepa 4- ekcnnoarauvoHu kanauwreT (pnoTe kaMMOHa A- rauka TeopeTrcke ycknaljeHocru kanaunTeTa B- rauka ekcnnoarauvMoHe (pauMoHarle) ...
... Karakteristike dampera angažovanih na transportu jalovine ............a...... 46 Slika 5.1 Položaj rudnika Šuplja Stijena (A) u odnosu na grad Pljevlja (B) i železničku stanicu Prijepolje (C) ........aaaaaaaaa a anaa a aaaaaaaaaaaaaaaaaeaaaaataaaaaeaaatakaeat 47 Slika 5.2 Geološki plan - podužni profil ...
... parametri Komatsu 850 PCB00LC Zapremina kašike 4.5m3 Snaga motora [(dizel) 514kW Maksimalna visina kopanja (A) 10.6m Maksilmalna visina istresanja (B) 7.18m Maksimalna dubina kopanja (C) 3.53 m Maksimalni radijus kopanja (D) 10.3m Radijus kopanja na nivou stajanja (E) 9.92m Slika 2.8 Radni parametri ...Siniša Bujišić . Određivanje broja kamiona za transport jalovine na površinskom kopu „Šuplja Stijena“, 2024
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Tehno – ekonomska ocena ležišta bakra i zlata u istočnoj Srbiji
Strahinja Sarajlić (2024)U svrhu postizanja optimalnih rezultata pri eksploataciji ovog ležišta bakra i zlata, koje se nalazi u istočnom delu Srbije, biće primenjena metoda podetažnog zarušavanja rude i okolnih stena.Tehno-ekonomska ocena opravdanosti eksploatacije rude bakra iz ovog ležišta, urađena je na bazi projektovanih parametara datih u tehničkom projektu. Urađena je analiza i ocenjena je rentabilnost ovog projekta na bazi predviđenog veka eksploatacije od 19 godina.Procenjeno je da je investicioni projekat u celini rentabilan i ekonomski potpuno opravdan. opravdan.tehno – ekonomska ocena, investicioni projekat, otvaranje rudnika, metoda otkopavanja, ekonomska ocena, kapitalna investicija... Bendeković ]., Brković, D., Gorupić, D., 1981. Priručnik za planiranje investicijskih projekata, Udruženje banaka Jugoslavije, Beograd Savić, Lj., Radovanović, V., Savić, Lj., Janković, R., 2012. Faktori ekonomske uspešnosti u rudnicima, Institut za rudarstvo i metalurgiju Bor, Bor 55 O0pasay 1 ...
... što je ilustrovano na slici 12 (a i b). Ovaj pristup omogućava efikasno upravljanje prostorom i optimizuje proces otkopavanja, čime se poboljšavaju ukupni rezultati miniranja. 26 a) b) Slika 12 - Izrada zaseka (a) i prikaz otkopa i lepeze buSotina (b) 27 Usvojena metoda otkopavanja ima ...
... videti količine i kvalitet bilansnih i eksploatacionih rezervi B + Ci kategorije. Srednji ponderisani Kategorija — Količina sadržaj komponenti rezervi rezervi (t) Au Ag Cu (% Cu (t Au (ki Ag (k 0) (g/0 — (a/t) (0 (ke) — Ag(kg) B+Ci 46,150,474 . 2.71 1.70 3.13 1,211,460 76,243.16 141,267.5 ...Strahinja Sarajlić. Tehno – ekonomska ocena ležišta bakra i zlata u istočnoj Srbiji, 2024
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A Multilingual Evaluation Dataset for Monolingual Word Sense Alignment
Sina Ahmadi, John P McCrae, Sanni Nimb, Fahad Khan, Monica Monachini, Bolette S Pedersen, Thierry Declerck, Tanja Wissik, Andrea Bellandi, Irene Pisani, [...] Ranka Stanković and others (2020)Aligning senses across resources and languages is a challenging task with beneficial applications in the field of natural language processing and electronic lexicography. In this paper, we describe our efforts in manually aligning monolingual dictionaries. The alignment is carried out at sense-level for various resources in 15 languages. Moreover, senses are annotated with possible semantic relationships such as broadness, narrowness, relatedness, and equivalence. In comparison to previous datasets for this task, this dataset covers a wide range of languages ...... Pisa, Italy. Pedersen, B. S., Nimb, S., Asmussen, J., Sørensen, N. H., Trap-Jensen, L., and Lorentzen, H. (2009). DanNet: the challenge of compiling a wordnet for Danish by reusing a monolingual dictionary. Language resources and eval- uation, 43(3):269–299. Pedersen, B. S., Nimb, S., Olsen, S ...
... P. (2016). Lexi- con Model for Ontologies: Community Report. Dahlerup, V. (1918). Ordbog over det danske sprog, vol- ume 1. Gyldendal. Dandala, B., Mihalcea, R., and Bunescu, R. (2013). Word sense disambiguation using Wikipedia. In The People’s Web Meets NLP, pages 241–262. Springer. Dónaill ...
... (2011). Slovene lexical database. In Natural language processing, multilinguality, pages 72–80. Gliha Komac, N., Jakop, N., Ježovnik, J., Kern, B., Kle- menčič, S., Krvina, D., Ledinek, N., Meterc, M., Miche- lizza, M., Pavlič, M., et al. (2016). eSSKJ: Dictionary of the Slovenian Standard ...Sina Ahmadi, John P McCrae, Sanni Nimb, Fahad Khan, Monica Monachini, Bolette S Pedersen, Thierry Declerck, Tanja Wissik, Andrea Bellandi, Irene Pisani, [...] Ranka Stanković and others . "A Multilingual Evaluation Dataset for Monolingual Word Sense Alignment" in Proceedings of the 12th Conference on Language Resources and Evaluation (LREC 2020), Marseille, European Language Resources Association (ELRA) (2020)
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Uticaj finoće mlevenja rude rudnika Grot na tehnološke rezultate
Ivana Božović (2024)Diplomski rad sa temom „Uticaj finoće mlevenja rude rudnika Grot na tehnološke rezultate” sastoji se iz dva dijela, opšteg i eksperimentalnog. U opštem dijelu prikazani su: * Istorijski razvoj rudnika „Grot”; * Geografski položaj rudnika „Grot”; * Geološke karakteristike ležišta; * Mineralni sastav i strukturno-teksturne karakteristike; * Prikaz postupaka pripreme mineralnih sirovina koji se primjenjuje u pogonu; * Opis šeme procesa; U drugom dijelu ovog završnog rada prikazani su rezultati eksperimentalnih ispitivanja koja su obuhvatila: uzorak, mineralnu sirovinu, hemijske analize i tehnološka ispitivanja. Na kraju ovog rada dati ...... fakultet, Univerzitet u Beogradu Kriva meljivosti rude Grot |I ||zs3|3| } 0:d| || || dj| |a| |2 |:3]||B}|3||za || | |1||||||||| II |1111|||||| ||LII JIB ||BB1|Y| || H| B -B 50 iH | |5 |I B | || 1|1| 5 10 15 Vreme mlevenja, min % kl as e - 0 , o 7 4 m m 20 Dijagram.1. Kriva meljivosti ...
... Beogradu Hirofermaine promene [ · J Kvarciatiti Oarit Anđert — e |vfvm. vi hefke a v0 ——— | Čwwna tožmaca (0) (Granođiorf Su”| z porhrosćm {B morfrtan, gan10w, Branfo«ci Doganice :: d L W Branitoi Bahce i Hibrdne štene gabra \dnog ı amfdbalshog vi } Feldspahuv3% , grami BL tizerami ...
... kojim su bilansirane do tada registrovane geološke rezerve (tabela 1). Tabela 1. Geološke rezerve u ležištu Blagodat, stanje 31.12.2015. godine B 3. 43 e Bare·Davol]awdedcal 232.508 _| __4,97 | ___568 | _11.558,60 | 13.221,15 332 921 4,52 5.01 | 15 055,36 16 664,61 Đavolja vođenica |I 228 587 ...Ivana Božović. Uticaj finoće mlevenja rude rudnika Grot na tehnološke rezultate, 2024
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Arsenic in Tap Water of Serbia´s South Pannonian Basin and Arsenic Risk Assessment
Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić (2012)... of iron-arsenic ratios, peat, river bank deposits, and excessive groundwater abstraction, Chem. Geol., 249, (1-2), 91, 2008. 5. SUN G.F., PI J.B., LI B., GUO X.Y., YAMAUCHI H., YOSHIDA T. Progresses on researches of endemic arsenism in China: population at risk, intervention actions, and relat- ed scientific ...
... Chappell, C.O. Abernathy, R.L. Calderon (Eds.), Arsenic exposure and health effects IV, Elsevier, Amsterdam, pp. 79-85, 2001. 6. JOVANOVIĆ D., JAKOVLJEVIĆ B., RAŠIĆ- MILUTINOVIĆ Z., PAUNOVIĆ K., PEKOVIĆ G., KNEZEVIĆ T. Arsenic occurrence in drinking water supply systems in ten municipalities in the Vojvodina ...
... States Environmental Protection Agency, [Online] 2006: http://water.epa.gov 11. WORLD HEALTH ORGANIZATION [Online]: http://www.who.int 12. PETRUSEVSKI B., SHARMA S.K., SCHIPPERS J.C., SHORDT K. Arsenic in drinking water. Delft: IRC International Water and Sanitation Centre, 17, 1, 2007. 13. BEDNAR A.J ...Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić. "Arsenic in Tap Water of Serbia´s South Pannonian Basin and Arsenic Risk Assessment" in Polish Journal of Environmental Studies (2012)
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Integrative GHG Assessment in Oil and Gas Industry
Reducing greenhouse gas emissions is one of the main targets of national strategies in European countries. As a main contributor to emissions, the energy sector is recognized as the most promising to apply measures and actions aimed to decrease GHG emissions. The Oil and Gas industry as a significant contributor to global greenhouse gas emissions is facing a growing need for estimating, mitigating, and reducing the impact of their operations on the atmosphere to stay competitive in a newly ...... tric coefficicnt for oxygen. The carbon content of hydrocarbon compound can be calculated using the cquation [8]: 12 b C _ X Ib mole C Ib mole C_ Ib mole Cj ..{_P _ | b mole where: J - any hydrocarbon compound from Equation 6; 12 - molecular wcight of carbon; X - Stoichiometric cocfficient ...
... emissions of CO»e per source for Flowstation [tonnes CO-»e| b) Total emissions of CO»e per source for Gas Plant [tonnes CO»e}] source. Results presented in Figure 2 contain total emissions of CO-»e for Flowstation (a), Gas plant (b) and Office (c). Accurate values of mentioned total emissions ...
... Science Data, Vol. 12, No. 3, pp. 1561-1623, 2020. https://doi.org/10.5194/essd-12-1561-2020 13] Nguyen, T.V., Voldsund, M., Breuhaus, P., Elmegaard, B. Energy efficiency measures for offshore oil and gas platforms, Energy, Vol. 117, Part 2, pp. 325-340, 2016. https://doi.org/10.1016/|.energy.2016.03 ...Aleksandar Mirković, Marija Živković, Stevan Đenadić, Darja Lubarda, Chinedu Anyanwa. "Integrative GHG Assessment in Oil and Gas Industry" in Energija, ekonomija, ekologija (2023). https://doi.org/10.46793/EEE23-1.51M
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Overview of the hydrogeological investigations of recently discovered world class deposits in Serbia
Europe industry has growing concerns on availability of the raw materials. To address this challenge, the European Commission has created a list of critical raw materials for the EU, launched EIT Raw Materials initiative, and continuously support research projects (like INTRAW, UNEXMIN etc.) with the aim of reducing the dependency and meeting growing demands. In the last 15 years Serbia is experiencing new bust in geological exploration of mineral deposits. Currently 167 exploration licenses are active, covering approximately 6000 ...Nebojša Atanacković, Vladimir Živanović, Veselin Dragišić, Sava Magazinović. "Overview of the hydrogeological investigations of recently discovered world class deposits in Serbia" in Proceedings of IAH2019, the 46th Annual Congress of the International Associaton of Hydrogeologists, Málaga (Spain), September 22-27, 2019, International Association of Hydrogeologists (IAH) (2019)
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Uticaj raspadanja na stabilnost kosina u mekoj stenskoj masi
Anđela Despotov (2024)U radu je opisano ponašanje mekih stenskih masa koje su izložene porecesu raspadanja tokom određenog vremenskog perioda. Meke stenske predstavljaju kritične vrste stenskih masa pošto izazivaju različite probleme tokom izvođenja građevinskih radova. Meke stene mogu biti sedimentne stene, raspadnute metamorfne i magmatske stene. Odlikuju se niskim vrednostima čvrstoće, visokom deformabilnošću, visokom plastičnošću, podložne su dezintegraciji i fizičko-hemijskom raspadanju, odnosno ubrzanom dejstvu površinskog raspadanja usled atmosferskih uticaja.Za klasifikaciju mekih stenskih masa koriste se modifikovane verzije već postojećih klasifikacionih sistema. Jedan ...... fragmenti Za određivanje Indeksa otpornosti prema raspadanju Id, koristi se sledeća Jednačina: la(2)=[(Wr-C}/(B-C)} x 100 (2) Gde je, Wf — masa bubnja osušenog uzorka nakon drugog ciklusa, B — masa bubnja i osušenog uzorka pre prvog ciklusa, C – masa bubnja. 22 Slika 9. Izgled aparata za određivanje ...
... aeaatattett 14 Slika 6. Uticaj prostornog položaja pukotina (slojevitosti) na debljinu kore površinskog raspadanja; a) Horizontalna slojevitost, b)vertikalna slojevitost, c) kosa slojevitost (Abolmasov, Uticaj na anvelopu napona loma (Botts, 1998)..........c.aaaaanaa a aeaneakateet 20 Slika 8 ...
... izloženosti atmosferskim uticajima Slika 14. Prikaz analize stabilnosti kosine 30+200 pri promeni GSI vrednosti u Slide softveru: a) vrednost GSI=30, b) vrednost GSI=25, c) vrednost GSI=20, d) vrednost GSI=19....31 Popis tabela Tabela 1 Najčešći tipovi mekih stenskih masa, Kanji (2014) .......... ...Anđela Despotov. Uticaj raspadanja na stabilnost kosina u mekoj stenskoj masi, 2024
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Univerzitet u Beogradu Rudarsko-geološki fakultet Master rad Modeliranje disperzije prašine u životnoj sredini u fazi proširenja P.K. Veliki Krivelj
Magdalena Milanović (2024)Modeliranje disperzije zagađenja životne sredine predstavlja proces u kom se korišćenjem matematičkih modela vrši simulacija širenja i raspodele zagađenja u životnoj sredini, koje nastaje određenim aktivnostima. Modeliranje nam pomaže da predvidimo zagađenja koja dobijamo planiranim aktivnostima u zemljištu, vodi i/ili atmosferi određene regije, kako bi na vreme preduzeli odgovarajuće preventivne mere kojim se smanjuje ili upotpunosti eminiše uticaj na životnu sredinu i zdravlje ljudi. Glavni zadatak ovog rada je procena uticaja, projekta proširenja kopa Veliki Krivelj, na kvalitet vazduha. Rezultati koji ...Modeliranje disperzije zagađenja životne sredine, površinski kop Veliki Krivelj, AERMOD, zagađenje vazduha, disperzija prašine... vazduha. U situaciji A balon nastavlja da se penje, dok se u B spušta. U situaciji C, usled izjednačavanja temperature balon se neće kretati (ni gore ni dole). [5] Vi si na (k m) | |_ '5„ ?13„ ·10„ _ '20° '20° '20° A B c Temperatura (*C) Slika 3.2. Peza između adijabatske promene ...
... Modđel/iranje disperzije zagađenja životne sredine, površinski kop YPeliki Krivelj, 4ERMOD, zagađenje vazduha, disperzija prašine. Sadržaj IA 0. 6) b OAAAAAA AAAAAA 6 2. ZAKONSKA REGULATIVA ... iaa a ee a aaeaaaaaa a ataataetatNitte i 7 3. METEOROLOGIJA I ATMOSFERA ... a ea e aataeaeaaatatte 10 ...
... regresije za Martinove krive za ruralna područja [5] Stability lor x<1 km lor x> | km category “ c d c d A 213 4408 1.941 9,27 450,7 2.004 .6 B 156 106.6 1,149 3,3 108,2 1008 20 c 104 61,0 0,911 0 61.0 0,911 0 D 68 33,2 0,725 •1,7 445 0.516 •13,0 E 50.5 22.8 0,678 •1,3 s54 0.305 +34.0 ...Magdalena Milanović. Univerzitet u Beogradu Rudarsko-geološki fakultet Master rad Modeliranje disperzije prašine u životnoj sredini u fazi proširenja P.K. Veliki Krivelj, 2024