Претрага

Упит dcterms_subject_txt:General Earth and Planetary Sciences,General Environmental Science

2444 items

  • New evidence for the use of cinnabar as a colouring pigment in the Vinca culture

    Gajić Kvascev Maja, Marić Stojanović Milica, Smit Z., Kantarelou V., Karydas Andreas G., Šljivar D., Milovanović Dragan, Andrić Velibor (2012)

  • Cyanobacterial Potential for Restoration of Loess Surfaces through Artificially Induced Biocrusts

    Tamara Palanački Malešević, Tamara Dulić, Igor Obreht, Zorana Trivunović, Rastko Marković, Bojan Kostić, Tamara Važić, Jussi Meriluoto, Zorica Svirčev (2020)
    BLOCDUST hipoteza, stabilizacija lesa, restauracija lesa, cijanobakterije, morfologija bioflore

  • NMR kinetic studies of the interactions between [Ru(terpy)(bipy)(H2O)]2+ and some sulfur-donor ligands

    Aleksandar Mijatović, Biljana Šmit, Ana Rilak, Biljana Petrović, Dragan Čanović, Živadin D. Bugarčić (2012)
    Reakcije supstitucije monofunkcionalnog [Ru(terpi)(bipi)(H2O)]2+ kompleksa, gde je terpi = 2,2′:6′,2″-terpiridin i bipi = 2,2′-bipiridin, sa biološki relevantnim sumporo donorskim ligandima, kao što su tiourea, l-metionin, l-cistein i glutation, proučavane su u vodenim rastvorima tehnikom 1H i 13C NMR spektroskopije. Sve reakcije su proučavajne na pH 7,4, u prisustvu fosfatnog pufera, da bi se oponašalo fiziološko okruženje tokom procesa supstitucije. Reakcije se izvode na 295 K pod uslovima reakcija drugog reda. Uočeni rezultati pokazuju da brzina supstitucije snažno zavisi ...
    Materials Chemistry,Inorganic Chemistry,Physical and Theoretical Chemistry

  • Effects of external noise on threshold-induced correlations in ferromagnetic systems

    Dragutin Jovković, Sanja Janićević, Svetislav Mijatović, Lasse Laurson, Đorđe Spasojević (2021)
    Изингов модел, праг детекције, екстерни шум

  • 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 ...
    gas-lift, modelovanje bušotine, prenos mase i toplote, taloženje parafina
    ... C. Kabir, Wellbore heat-transfer modeling and applications, Journal of Petroleum science and engineering, str 179-185, (2012) [41] C. Kabir, A Hasan, Performance of a two-phase gas/liquid flow model in vertical wells, Journal of Petroleum Science and Engineering, Vol. 4, str 273-289, (1990) ...
    ... Unified modeling of gas/oil/water – pipe flow – basic approaches and preliminary validation, Journal of Petroleum Science and Engineering, Projects, Facilities & Construction, str 1-7, (2006) [78] T. Harmathy, Velocity of large drops and bubbles in media of infinite restricted extent, AiChE Journal ...
    ... Fundamentals of gas-lift engineering, Well design and troubleshooting, Elsevier, Cambridge, str 81-106, (2016) [8] S. Ayatollahi, M. Narimani, M. Moshfeghian, Intermittent gas-lift in Aghajari oil field, a mathematical study, Journal of Petroleum Science and Engineering, Vol. 42, Issues 2-4, str 245-255 ...

  • Hydrographic and hydrological characterization of the Vodenička and Rosomačka rivers

    Vesna Ristić Vakanjac, Marina Čokorilo Ilić, Dušan Polomčić, Dragoljub Bajić, Jelena Ratković (2017)
    The Visočica River rises in Bulgaria, on the Berovo Mountain. Its course in Bulgaria is 16.7 km long. It enters Serbia near the village of Donji Krivodol. Up to the village of Pakleštica, or the beginning of Lake Zavoj, its right-bank tributaries are the Krivodolštica, the Vodenička, the Rosomačka and the Dojkinačka. There are no left-bank tributaries. Among the tributaries, water levels and discharges are gauged only on the Dojkinačka River. The Vodenička had also been gauged but only ...
    hydrographic characteristics, river discharge, the Vodenička River, the Kamenička River
    ... s.l., at the union of the Jelov Dol and the Studena Bara. It empties into the Visočica between the villages of Izatovac and Braćevci, at 755 m.a.s.l. The general flow direction is north-to-south and the catchment is between those of the Rosomačka (west) and the Krivodolštica (east). A water divide ...
    ... Creek and the Zanoška River. It empties into the Visočica River at 724 m.a.s.l., near the village of Slavinja. The general flow direction is north-to-south and the catchment is between the watersheds of the Jelovica River, which is the main right-bank tributary of the Dojkinačka (west) and the Vodenička ...
    ... the Rosomačka and the Vodenička are located in southeastern Serbia, within the southern part of Mt. Stara Planina, between latitudes 43 о 07' 16'' and 43 о 13' 41'' N and longitudes 22 о 51' 0'' and 23 о 0' 43'' E. There are two villages each in the two catchments: Rosomač and Slavinja in ...

  • Грешка инклинације код депозиционе реманетне магнетизације

    Mirko Petković, Vesna Cvetkov (2019)
    ... particles, and correct for paleomagnetic inclination shallowing, Physics and Chemistry of the Earth 27, 1273 – 1279. 5. Jackson, M., Banerjee, S., Marvin, J., Lu, R., & Gruber, W., (1991) Detrital remanence, inclination errors, and anhysteretic remanence anisotropy: quantitative model and experimental ...
    ... the aim of defining the spatial and temporal position of the investigated rock complexes. The spatial position of the remanent magnetization vector is determined by the paleo declination and inclination. However, the processes of re-deposition, compaction and cementation of sediments lead to the ...
    ... formation, the so-called inclination error. Sometimes this error is negligible, sometimes it is significant and can cause wrongly defined paleolatitude of deposition, the magnitude of translational and rotational movement of blocks, as well as non-matching of magnetostratigraphic scales. Experimental ...

  • Model za optimizaciju graničnog saržaja metala u rudi u funkciji dugoročnog planiranja površinskih kopova

    Daniel P. Kržanović (2016-06-14)
    Optimizacija graničnog sadržaja metala u rudi jedan je od osnovnih koraka u planiranju i dizajniranju površinskih kopova i ima za cilj postizanje maksimalne neto sadašnje vrednosti (NPV). Iz tog razloga, optimizacija graničnog sadržaja i danas je predmet mnogih istraživanja u rudarskoj nauci, sa ciljem rešavanja praktičnih problema u eksploataciji ležišta.Dugoročno planiranje eksploatacije na površinskim kopovima podrazumeva sagledavanje svih relevantih parametara i faktora (geologije rudnog ležišta, tehnologije proizvodnog procesa, kapaciteta otkopavanja i prerade, troškova, cena metala, iskorišćenja i dr) kako ...
    površinski kop, dugoročno planiranje, optimizacija graničnog sadržaja, maksimizacija neto sadašnje vrednosti (NPV).
    ... Cutoff Grade Considering Environmental Cost, J. Int. Environmental Application & Science, Vol.3 (3): pp. 186- 194. Gholamnejad, J., 2009, Incorporation of rehabilitation cost into the optimum cut- off grade determination, Journal South African Institute of Mining and Metallurgy 108, pp. 89–94 ...
    ... Scheduling, School of Mathematics and Statistic, Curtin University of Technology, Perth, Australia, pp. 895-900. Cairns, R., Van Quygen, N., 1998, Optimal Exporation and Exploitation of Heterogeneous Mineral Deposits, Jounral of Environmental Economics and Management, pp. 164-189. Cairns ...
    ... Ramazan, S., and Dimitrakopoulos, R., 2004, Traditional and New MIP Models for Production Scheduling with In-Situ Grade Variability, International Journal of Surface Mining, Vol. 18, pp. 85–98. Rashidinejad, F., Osanloo, M., Rezai, B., 2008, Cutoff grades optimization with environmental management; ...

  • Хидрогеохемијске карактеристике и квалитет вода слива Требишњице, Република Српска, Босна и Херцеговина

    Dragoslav R. Banjak (2016-08-25)
    Упркос неповољном временском и просторном распореду, воде су најзначајнијиприродни ресурс Источне Херцеговине. Ова чињеница довела је до реализацијепројекта „Вишенамјенског хидросистема Требишњица“, којим је, премаМилановићу (2006), до сада обухваћено: седам хидроелектрана, шестакумулација, шест брана, шест тунела укупне дужине 59,7 km, неколикоприступних тунела, 62,5 km бетонског канала кроз Попово поље, канал крозДабарско (6750 m) и Фатничко поље (2770 m) и систем тунел-канал или цјевоводпрема Дубравама.У почетку са доминантним енергетским предзнаком, концепција јетрансформисана у интегрално рјешење вишенамјенског коришћења и заштитевода и животне ...
    хидрогеохемијски процеси, мултиваријантна статистичкаанализа, инверзно геохемијско моделовање, квалитет воде, употребиљивост водеза наводњавање, слив Требишњице
    ... Banjak D., Nikolić Ј (2012), Hydrochemical characteristics and water quality of the Mušnica River catchment, Bosnia and Herzegovina, Hydrological Sciences Journal, Volume 57, Issue 3, Pages 562-575 7. Bethke C. (2008), Geochemical and Biogeochemical Reaction Modeling, Cambridge, New York 8 ...
    ... conditions for analyses, probabilities, optimalisation of the resources and in general bringing managing decisions in the area of water quality, have not been made. The main factors which determine water chemical composition and their quality are relations rock-water, water regime, rainfall, antropogenic ...
    ... Extent of Nitrate in Southland Groundwater-Technical Report, Environmental Southland 58. Електропривреда Републике Српске (1999), Рудник и Термоелектрана Гацко, Требиње 59. Rubio B., Nombela A. (2000), Geochemistry of Major and Trace Elements in Sediments of the Ria de Vigo (NW Spain); an ...

  • 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 ...
    meke stenske mase, dezintegracija, klasifikacioni sistemi, Slake durability test
    ... Journal of Rock Mechanics and Mining Sciences, Volume 34, article id. 298.e1. 27. Sousa i dr. (1997), Experimental investigation on the influence of temperature on the mechanical properties of reservoir rocks. International Journal of Rock Mechanics and Mining Sciences, Volume 34, article id. 298 ...
    ... Eng Geol., 166, pp. 1725 16. Hoek, E., (1994) Strength of Rock and Rock Masses. ISRM News Journal, 2, 4-16 17. Hoek, E., Brown, E.T., (1997) Practical Estimates of Rock Mass Strength, International Journal Rock Mechanics Mining Science, 34, 1165-1186. 18. Hoek E., Brown E.T., (1980) Underground ...
    ... Institution of Mining and Metallurgy 527 p, London 19. ISO 14689:2017 Geotechnical investigation and testing - Identification, description and classification of rock 20. Sandeen, J., (2023), Mechanical Weathirng, CK-12 Foundation 21. Kanji, M., (2014), Journal of Rock Mechanics and Geotechnical Engineering ...

  • Mineralni i hemijski sastav čestica u atmosferi zone Kolubarskog basena i uticaj na životnu sredinu

    Željko R. Cvetković (2013-11-18)
    Čestice iz vazduha su prikupljane u blizini termoelektrane i površinskih kopovarudnika uglja u Kolubarskom basenu. Izmereni srednji sadržaji koncentracija rastvornih,nerastvornih i ukupnih taložnih materija na godišnjem nivou prelaze 200 mg/m2dan (K-1, K-3, K-4, K-5). Distribucija čestica na svim lokacijama klasifikovana je na česticeveličine veće od 10 μm, zatim na čestice veličine od 10 μm do 2,5 μm i klase česticaveličine ispod 2,5 μm. Ovakva podela je dala odnos koncentracija inhalatornih irespiratornih čestica po mernim mestima. Skenirajuća elektronska mikroskopija jepokazala ...
    mineral, četica, prašina, leteći pepeo, aerosediment, PM10, teški metali,koncentracija, veličina čestice, Kolubara
    ... 81(2), 205-223. Cvetković, Ž., Logar, M and Rosić, A. (2013). Mineralogy and characterization of sedimentary particles of the aero sediments collected in the vicinity of power plants and the open pit of coal mine: Kolubara (Serbia), Environmental Science and Pollution Research 20(5), 3034-3049. ...
    ... mineral, particle, dust, fly ash, aero sediment, PM10, heavy metals, concentration, particle size, Kolubara. FIELDS: EARTH SCIENCES SPECIAL TOPICS : FUNDAMENTAL AND APPLIED MINERALOGY UDC : 502/504:55:553.9 602.9:621.18/.31:622.271 (497.11) (043.3) ...
    ... Meteroites, Gordon and Breach Science Publishers, New York. McCarthy, G. J. (1988) X-ray powder diffraction for studying the mineralogy of fly ash, In G.J. McCarthy, F.P. Glasser, D. M. Roy, and R. T. Hemmings, Eds. Fly Ash and Coal Conversion By-Products: Characterization, Utilization and Disposal, Minerals ...

  • Mineralni i hemijski sastav čestica u atmosferi zone Kolubarskog basena i uticaj na životnu sredinu

    Željko R. Cvetković (2013-11-18)
    Čestice iz vazduha su prikupljane u blizini termoelektrane i površinskih kopovarudnika uglja u Kolubarskom basenu. Izmereni srednji sadržaji koncentracija rastvornih,nerastvornih i ukupnih taložnih materija na godišnjem nivou prelaze 200 mg/m2dan (K-1, K-3, K-4, K-5). Distribucija čestica na svim lokacijama klasifikovana je na česticeveličine veće od 10 μm, zatim na čestice veličine od 10 μm do 2,5 μm i klase česticaveličine ispod 2,5 μm. Ovakva podela je dala odnos koncentracija inhalatornih irespiratornih čestica po mernim mestima. Skenirajuća elektronska mikroskopija jepokazala ...
    mineral, četica, prašina, leteći pepeo, aerosediment, PM10, teški metali,koncentracija, veličina čestice, Kolubara
    ... 81(2), 205-223. Cvetković, Ž., Logar, M and Rosić, A. (2013). Mineralogy and characterization of sedimentary particles of the aero sediments collected in the vicinity of power plants and the open pit of coal mine: Kolubara (Serbia), Environmental Science and Pollution Research 20(5), 3034-3049. ...
    ... mineral, particle, dust, fly ash, aero sediment, PM10, heavy metals, concentration, particle size, Kolubara. FIELDS: EARTH SCIENCES SPECIAL TOPICS : FUNDAMENTAL AND APPLIED MINERALOGY UDC : 502/504:55:553.9 602.9:621.18/.31:622.271 (497.11) (043.3) ...
    ... Meteroites, Gordon and Breach Science Publishers, New York. McCarthy, G. J. (1988) X-ray powder diffraction for studying the mineralogy of fly ash, In G.J. McCarthy, F.P. Glasser, D. M. Roy, and R. T. Hemmings, Eds. Fly Ash and Coal Conversion By-Products: Characterization, Utilization and Disposal, Minerals ...

  • Combining Heterogeneous Lexical Resources

    Cvetana Krstev, Duško Vitas, Ranka Stanković, Ivan Obradović, Gordana Pavlović-Lažetić (2004)
    development of lexical resources, morphological dictionaries, WordNet
    ... already been attached to simple word entries in Serbian MD, such as +Hum (human) and +Bot (botanic) for nouns, and +Col (colour) and +Mat (material) for adjectives. The use of wordnet enables a more systematic and more detailed attachment of such marks. Moreover, the attachment can be modeled ...
    ... both (brow:1, forehead:1) and (cello:1, violoncello:1). By adding the information obtained from the WN hypernym/hyponym relations these two entries can be distinguished: for instance, cyelo,N300+BodyPart and cyelo,N300+Artifact, or cyelo,N300+Thing+BodyPart+Feature and cyelo,N300+Artifact+Devi ...
    ... language and Microsoft .Net were chosen as the basic development tools. Visual Studio .NET is a complete set of development tools for building ASP Web applications, XML Web services, desktop applications, and mobile applications. Visual Basic .NET, Visual C++ .NET, Visual C# .NET, and Visual J# ...

  • The Dur At Talah Formation

    Vasić Nebojša, Sherif Khalid, Kalifa Abd Allah, Bojić Zoran (2012)

  • The Most Important Patents in the Field of Petroleum Industry in Serbia

    Danilović Dušan, Batalović Veselin (2012)

  • Potentiostatic oxidation of AgCu50 alloy in alkaline solution in the presence of chlorides

    Rajčić Vujasinović Mirjana, Grekulović Vesna, Stević Zoran, Vuković Nikola (2013)

  • On the Dirichlet divisor problem in short intervals

    Ivić Aleksandar, Zhai Wenguang (2014)

  • Развој геолошког информационог система Републике Србије

    Бранислав Благојевић, Бранислав Тривић, Ненад Бањац, Ранка Станковић, Велизар Николић (2005)
    Геолошки информациони систем Србије (ГеолИСС) је пројектован, првенствено, са намером ефикасног дигиталног архивирања геолошких и њима сродних података. У овом раду је приказана структура базе података као основа за развој геолошки конципираног ГИС-а. Нови, објектно орјентисани (О-О) начин моделирања омогућио је дефинисање самосталних типова објеката, хијерархијски повезаних кроз тополошке и друге релације, чиме је обезбеђена њихова медјусобна интеракција. Објектно оријентисано моделирање извршено је коришћењем унифицираног језика моделирања (UML) и CASE алата, кроз концептуални и логички ниво. Физички модел ће ...
    ГеолИСС, геолошки подаци, управљање базама података, концептуални модел, логички модел, ГИС
    ... Mark, 2002, Distinguishing instances and evidence of geographical concepts for geospatial database design, in M. Egenhofer and D. Mark (eds.), Geographic Information Science-2nd Int’l Conference: GIScience 2002, LNCS 2478, Springer, Berlin. Date, C.J., 1999, An introduction to database systems, ...
    ... Brodaric, Boyan, and Hastings, Jordan, 2002, An object model for geologic map information, in: D. Richardson and P. van Oosterom (eds.), Advances in Spatial Data Handling: 10th International Symposium on Spatial Data Handling, Ottawa, Canada, July 8-12, 2002, p. 55-68. Brodaric, Boyan, and Gahegan, Mark ...
    ... Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs 14. Конгрес Геолога Србије и Црне Горе / 14th Congress of Geologists of Serbia and Montenegro РАЗВОЈ ГЕОЛОШКОГ ...

  • Management of Natural Gas Sector in Serbia

    Karović-Maričić Vesna, Danilović Dušan, Ivezić Dejan (2011)

  • Savremeni pristup rešavanja problema industrijskog otpada

    Mariја Bošković (2024)
    Rad ukazuje na savremene metode rešavanja problema industrijskog otpada, sa posebnim fokusom na pećnu prašinu koja nastaje tokom metalurških procesa, poput proizvodnje čelika u elektrolučnim pećima. U radu se detaljno razmatra hemijski sastav pećne prašine, koja sadrži teške metale poput cinka, olova i kadmijuma, i naglašavaju ekološki izazovi koje predstavlja njeno zbrinjavanje. Takođe, analiziraju se metode tretmana i valorizacije pećne prašine, uključujući pirometalurške i hidrometalurške procese, pri čemu je poseban akcenat stavljen na reciklažu cinka iz pećne prašine. Dalje, ...
    prašina, elektrolučna peć, cink, teški metali, reciklaža
    ... dust, which contains heavy metals like zinc, lead, and cadmium, and emphasizes the environmental challenges posed by its disposal. Additionally, the paper examines treatment and valorization methods for furnace dust, including pyrometallurgical and hydrometallurgical processes, with a special emphasis ...
    ... more sustainable resource management and reduce the negative environmental impact. Key words: furnace dust, electric arc furnace, zinc, heavy metals, recycling Ovaj završni rad rađen Jje u okviru projekta ,, RIS-DustRec-II. Zero waste reprocessing of EAF and CF dust with competence build-up“, koji ...
    ... benefits of zinc recycling, not only in reducing environmental impact but also in economic advantages, as zinc, a valuable metal, can be reused in industry. Special attention is given to innovative methods that enhance the efficiency of recycling processes and reduce the amount of waste requiring permanent ...