Претрага
862 items
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Squamate remains from the Early and Middle Pleistocene Srem series in the Mutalj Quarry (Beočin, Northern Serbia)
Đurić Dragana, Bogićević Katarina, Nenadić Draženko. Squamate remains from the Early and Middle Pleistocene Srem series in the Mutalj Quarry (Beočin, Northern Serbia) no. 1, Struga:, 2016: 351-357
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Flood protection and water utilization of karst poljes: example of Gatačko Polje, Eastern Herzegovina
Tina Dašić, Ljiljana Vasić (2020)Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry,Global and Planetary ChangeTina Dašić, Ljiljana Vasić. "Flood protection and water utilization of karst poljes: example of Gatačko Polje, Eastern Herzegovina" in Environmental Earth Sciences, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s12665-020-08987-4
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Geothermobarometric investigations of Hercynian granitoids of East Serbia
Bosić Dragana, Erić Suzana, Šarić Kristina, Kostić Bojan, Cvetković Vladica, Jovanović Dragan (2016)Bosić Dragana, Erić Suzana, Šarić Kristina, Kostić Bojan, Cvetković Vladica, Jovanović Dragan. "Geothermobarometric investigations of Hercynian granitoids of East Serbia" in Geologica Macedonica, sp. iss. Third Congress of Geologists of Republic of Macedonia 2 no. 4 (2016): 467-468. https://doi.org/http://www.libraweb.net/artico
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An oilfield in Libya: A new model to enhance waste water disposal
Dušan Danilović, Vesna Karović Maričić, Nori Elhaddad, Branko Leković. "An oilfield in Libya: A new model to enhance waste water disposal" in Energy & Environment (2016)
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Flyrock induced by blasting in surface mining
Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac (2022)Miniranje predstavlja i dalje najefikasniji i najjeftiniji način eksploatacije velikih količina čvrstih mineralnih sirovina na površinskim kopovima. Energija eksplozije se koristi za fragmentaciju čvrste stenske mase do zahtevane granulacije. Pored pozitivnih efekata miniranja, postoje i određeni neželjeni efekti svakog procesa miniranja koji se mogu javiti, a to su: potresi tla, razletanje komada stene, vazdušni udari, otrovni i zagušljivi gasovi i prašina. Razletanje komada stene je nekontrolisano izbacivanje fragmenata odminirane stenske mase i predstavlja jedan od glavnih izvora materijalne štete ...Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac. "Flyrock induced by blasting in surface mining" in Rudarski glasnik, Beograd : Rudarski institut (2022). https://doi.org/10.25075/BM.2022.05
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Cultural Heritage and Protection of Hand-Wheeled Pottery Manufacture in Western Serbia: Characteristics of Zlakusa Pottery Based on Sem-Eds and Optical Microscopy
... actively coexists with discovery of new techniques and production processes. This brings to a rise in imitations of this pottery manufacture due to its enlarged popularity. The main goal of this work was to show characteristics of the pottery manufacture based on mineralogy [scanning electron ...
... most investigated elements when compared to sample 2, except K and Ca. Amount of K and Ca elements could indicate the presence of a higher amount of illite minerals and carbonates in the clay mixture which is not following sample 1. Conclusion How to differentiate traditional pottery products ...
... MANUFACTURE IN WESTERN SERBIA: CHARACTERISTICS OF ZLAKUSA POTTERY BASED ON SEM-EDS AND OPTICAL MICROSCOPY MILOŠEVIĆ, M.1, ZDRAVKOVIĆ, A.1, ĐORĐEVIĆ, B.2 & JELIĆ, I.3 1Faculty of Mining and Geology, University of Belgrade, Belgrade, Serbia 2National Museum in Belgrade, Belgrade, Serbia 3Natural History ...Milošević Maja, Zdravković Alena, Đordjević Biljana, Jelić Ivana. "Cultural Heritage and Protection of Hand-Wheeled Pottery Manufacture in Western Serbia: Characteristics of Zlakusa Pottery Based on Sem-Eds and Optical Microscopy" 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)
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Small Mammals from the Velika and Mala Balanica caves (Niš, southern Serbia)
Bogićević Katarina, Nenadić Draženko, Mihailović Dušan. Small Mammals from the Velika and Mala Balanica caves (Niš, southern Serbia) no. 1, Struga:, 2016: 357-360
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Sorpcija herbicida na neorganski i organski modifikovanom prirodnom montmorionitu iz Bogovine
Lazar M. Kaluđerović (2018-01-17)fikasnost prilikom sorpcije S-metolahlora i klomazona od strane neorganskih iorganski modifikovanih montmorionita sa lokaliteta Bogovina odreĎena je metodombach adsorpcije. Uzorci montmorionita su tretirani prvo rastvorom NaCl a zatim irazličitim koncentracijama organskih kompleksa. Adsorpcione izoterme su dobijenetretiranjem uzoraka različitim koncentracijama herbicida. Detaljna mineraloškakarakterizacija uzoraka uraĎena je metodom rendgenske difrakcije. Rezultati interakcijemontmorionita sa organskim kompleksima i herbicidima dobijeni su primenomrendgenskih, optičkih, termičkih i spektroskopskih metoda.Na osnovu rezultata rendgenskih ispitivanja uzoraka, utvrĎeno je prisustvoorganskih kompleksa i herbicida u meĎuslojnom prostoru montmorionita.Montmorioniti modifikovani ...adsorpcija, montmorionit, heksadeciltrimetilamonijum bromid,feniltrimetilamonijum hlorid, S-metolahlor, klomazon... privlačne sile molekula, atoma ili jona na površini faze nisu uravnoteţene. Zbog toga čestice na površini čvrste supstance kada su u dodiru sa gasom ili rastvorom imaju teţnju da vezuju molekule ili jone iz te druge faze. To dovodi do povećanja koncentracije stranih molekula, atoma ili jona na čvrstoj ...
... horizons of Argentina. Environmental Toxicology and Chemistry, 30(9): 1990–1996. Boyd S. A. Jaynes W. F., Ross B. S. 1991. Immobilization of organic contaminants by organo-clays: Application to soil restoration and hazardous waste containment. Organic Substances and Sediments in Water, 11(1): 181–200 ...
... , Nir S., Serban C., Rabinovitz O., Rubin B. 2001. Organo-Clay Formulation of Acetochlor for Reduced Movement in Soil. Journal of Agricultural and Food Chemistry, 49: 5364–5371. El-Nahhal Y. 2003. Adsorption mechanism of chloroacetanilide herbicides to modified montmorillonite. Journal of En ...Lazar M. Kaluđerović. "Sorpcija herbicida na neorganski i organski modifikovanom prirodnom montmorionitu iz Bogovine" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-01-17)
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Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit
... the interval from 1 to 3, most often at an interval from 1 and 2. To determine the parameter n, the La- grange’s theorem will be used, which states: Let f(x) be a function continuous to [a,b] and differentiable on an interval (a, b). Then there is at least one c, a < c < b, for which it is: ...
... Faculty of Mining and Geology – Mining Department, Belgrade pp. 102- 103. [4] Ivanović B., (1973): Theoretical Statistics, Naučna knjiga, Belgrade, pp. 90 (in Serbian). [5] Simonović V., (1995): Introduction to the Theory of Probability and Mathe- matical Statistics, TEKON - Tehnokon- salting, Belgrade ...
... određivanje parametra n koristi- ćemo Lagranžovu teoremu koja glasi: Neka je funkcija f(x) neprekidna na [a,b] i diferencijabilna u intervalu (a, b). Tada postoji bar jedno c, a < c < b, za koje je: cf ab afbf . U našem slučaju, s obzirom da je brzina oscilovanja neprekidna, opadajuća i ...Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić. "Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit" in Mining and Metallurgy Engineering Bor, Bor : Mining and Metallurgy Institute Bor (2015). https://doi.org/10.5937/MMEB1503053L
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Анализа рада гас лифта на нафтном пољу К
Тамара Бркан (2024)Анализа рада гас лифта укључује детаљну процену перформанси, идентификацију проблема, симулацију и моделирање, као и опримизацију и прилагођавање система. Циљ је осигурати да гас лифт функционише ефикасно уз повећање производње и уз што мање оперативне трошкове. У даљем тексту биће описана анализа рада гас лифта на нафтном пољу К, као и поређење најекономичнијег решења.... KCJ3HHTY. Ha cranma 5.1 B — cBH rac mHQ)r BeHTHJIH Cy 3aTBOpeHM, a peryjaTop Je OTBOpeH. IIopeji rac nH(br BeHTHJIa 33TBOpeH Je H IpOTHBIOBpaTHH BeHTHIL. I OpbH BCHTHJI Je OTKDHBcCH H yTHCHyTH rac yJ1a3H y TyOHHT KpO3 TaJ BEHTHII H JIH(pTyje IIpBH CTyO TeuHOcTH Ha HOBPIHIHHy. V TOM TpeHyTKy Ce peryJaToOp ...
... reocraTHuku rpa7juajeHT; k po — rycTHHa Ha()Te [—gg] mŽm' Vrpajuba reocrariukor rpajuujeHTa cc BpIIH Ha OCHOBJy TOT4 IHITO OJIpe]UMMO JmBe Tauke Ha OM H 1000 . LipraMo nHHaMHuKH HHBO (bHyua (Hy,y) Ha OcHoBy Hpeceka IPR-KpHBc H OHTHMAJIHC HpOH3BOJUbe, Ta JMHHMJa MOpa OMTH mapanmeNmHa Ca TcOCTaTHUKHM ...
... 3arBopu KoHTHHyaJHO CMaMĐeMe IHNpHTHCKa y Ke3HHTy HCIHOJL IHOTIOBPIHHHCKOT ripHrTHcKa 3aTBapaiba pajiHor BeHTHJIA yKa3yJe Ha TO Jla Taj BEHTHJI OCTaje OTBOPpeH. 'V TOM cuiryuajy, TyOuHr TpeOa 3aTBopurHu H noBehaTu ripHTHCak y Ke3HHTy TOJIHKO a OH Oyyne nocTa Behu 0J1 ripHTHcKa OTBapabba BeHTHII4a ...Тамара Бркан. Анализа рада гас лифта на нафтном пољу К, 2024
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Геолошке карактеристике лежишта нафте која се експлоатишу еруптивном методом
Милица Милићевић (2024)Геолошке карактеристике специфичних лежишта утичу на различите начине на ефикасност еруптивне методе. Најзначајније геолошке карактеристике које делују на еруптивну методу јесу порозност, пропусност, тип лежишта, резервоар стијене, као и тип замки. Еруптивна метода подразумјева коришћење природног притиска ради лакше експлоатације нафте и гаса из резервоара. У завршном раду су приказани различити типови лежишта и њихове геолошке карактеристике, као и предности и недостаци еруптивне методе код истих.... 0,72 Sw„i) = 0,25. OBaj MeTOJ OMoryhaBa HpHMJeHy rpaQHMKoHa 3a mpenBHbame yKyLHor (Qakropa noOuMJaba HaQTe npH pa3HnHuHTHM OJIHOCHMa BOJIĆ H Ha(b)Te, Kopucrehu H3pauyHaTe BpHjeJiHoOcTH Bapujanuje IIpOHyCTJBHBOCTH H OJIHOCa IIOKpeTJBHBOCTH. • MsapaayHaBaMĐe KyMyJIaTHBHe IIpDOH3BOJUbe Ha(bTe (Np) ...
... (ppakrypHpame MO)Ke OHTH CKyIO, J\yrOpOuHO MO)Ke pe3yJrrHpaTH CMaHbeMbeM TDpOIIKOBA CKCIIHOATATNUJE HO JeJUHHHIUH ripoH3BeJteHe Had(Te HH raca 30or roBehaHe e(b)uKkacHOCTH IIpOH3BOJUbC. OBa npHMjeHa ce OJHOCH Ha TexXHOmorHjy (ppakrypHpaMPa Koja ce ueCTO KOpMCTH y MOJEPpHOJ Ha(QTHOjJ MHHHyCTpHjH ...
... edQkacHocr ekcrimoaTalije CHOJHHX pe3cpBoapa. OBaj rponec oOyxBarTa aHajnuH3y KaKo he ce Ha(Ta u rac noHamaTH y CJIOJHHM JIČ)KHIITHMAa TOKOM CKCIIIOAaTAaLNUHje. InaBHH TIUHJb je HipenBHjeTH KOJMHKO Had(Te H raca he OMrH Moryhe M3aByhuH M3 pesaepBoapa. Heke oJ THx MeToJIa Cy: 1. IIojenHocraBJbeHa ...Милица Милићевић. Геолошке карактеристике лежишта нафте која се експлоатишу еруптивном методом, 2024
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Sustainable use of the Kalenić deponies
Polomčić Dušan, Bajić Dragoljub, Ratković Jelena, Pajić Pajić. "Sustainable use of the Kalenić deponies" in Proceedings of the 8th International Symposium on Natural Resources Management, Zaječar:John Naisbitt University, Faculty of Management (2018): 160-166
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The Potential of and Barriers to Renewable Energy Sources in Serbia
Ivezić Dejan, Đajić Nenad, Živković Marija. "The Potential of and Barriers to Renewable Energy Sources in Serbia" in Energy Sources, Part: B Economics Planning and Policy 8 no. 2, USA:Taylor and Francis (2013): 162-170
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Geothermobarometric investigations of Hercynian granitoids of East Serbia
Bosić Dragana, Erić Suzana, Šarić Kristina, Kostić Bojan, Cvetković Vladica, Jovanović Dragan (2016)Bosić Dragana, Erić Suzana, Šarić Kristina, Kostić Bojan, Cvetković Vladica, Jovanović Dragan. "Geothermobarometric investigations of Hercynian granitoids of East Serbia" in Geologica Macedonica, sp. iss. Third Congress of Geologists of Republic of Macedonia 2 no. 4, Struga :Macedonian Geological Society (2016): 467-468
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Water supply and groundwater quality in Republic of Serbia
Polomčić Dušan, Štrbački Jana, Bajić Dragoljub. "Water supply and groundwater quality in Republic of Serbia" in Proceedings of the 8th International Symposium on Natural Resources Management, Zaječar:John Naisbitt University, Faculty of Management (2018): 205-211
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The number of unimodular roots of some reciprocal polynomials
Dragan Stankov (2020)We introduce a sequence P2n of monic reciprocal polynomials with integer coefficients having the central coefficients fixed. We prove that the ratio between number of nonunimodular roots of P2n and its degree d has a limit when d tends to infinity. We present an algorithm for calculation the limit and a numerical method for its approximation. If P2n is the sum of a fixed number of monomials we determine the central coefficients such that the ratio has the minimal limit. ...Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomialsDragan Stankov. "The number of unimodular roots of some reciprocal polynomials" in Cmptes rendus mathematique (2020). https://doi.org/10.5802/crmath.28
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Assessments of effects of implementation of strategic plans for development of Belgrade District heating system
The district heating system (DHS) is one of the key elements of the Belgrade energy system. Overview of the current state and basic characteristics of the DHS are presented in this paper. The focus is on the planned development of DHS and on the analyses of effects of realization of measures and projects defined by strategic documents related to DHS which are adopted by city authorities (Development Strategy of DHS and Strategy of Belgrade Development). Two exploratory scenarios were ...Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Miodrag Grujić. "Assessments of effects of implementation of strategic plans for development of Belgrade District heating system" in Sustainable Cities and Society, Elsevier BV (2020). https://doi.org/10.1016/j.scs.2020.102304
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Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)
Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović. "Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)" in Challenges : Sustainable Land Management – Climate Change, Advances in Geoecology 43, Catena Verlag GMBH (2014)
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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)
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Kontaktni metamorfizam gornjokrednih sedimentnih stena Rudnika
Kostić N. Bojan (2021)Kontaktni metamorfizam gornjokrednih sedimentnih stena na planini Rudnik ispitivan je na uzorcima iz pet bušotina. Definisano je šest varijeteta krednih stena (protolita) koji čine dve litološke jedinice izgrađene od klastičnog, karbonatnog i klastično-karbonatnog materijala. Vulkanskom aktivnosti na Rudniku formirana su vulkanska tela koja se utiskuju duž slojevitosti sedimentnih stena, a neka ih presecaju u vidu dajkova. Starost ovog vulkanskog događaja određena je na 23.9 miliona godina. Ovaj miocenski vulkanizam doveo je do kontaktno metamorfnih promena sedimentnih stena i obrazovanja skarnova ...... Karamata, S., Krstić, B. 1996: Terranes of Serbia and neighboring areas. In Knežević- Đorđević V. & Krstić B. (Eds.) Terranes of Serbia. Faculty of Mining and Geology, University of Belgrade, p. 25-40 Karamata, S. 2006: The geological development of the Balkan Peninsula related to the approach, collision ...
... Streckeisen, A., Zanettin, B. 1986: A chemical classification of volcanic rocks based on the total alkalisilica diagram. Journal of Petrology, 27, p. 45–750 Leake, B. E. 1978: Nomenclature of amphiboles. Mineral. Mag. 42, p. 533-563 Locock, J. 2007: An Excel Spreadsheet to Recast Analyses of Garnet ...
... pojavljuju od 170-og metra i dostižu dubinu do 360 metara u bušotini 330A/18 (vidi sliku 48). Bušotina 186/18 je zaustavljena u skarnovima, te se zbog toga ne zna prava debljina skarnova u navedenoj bušotini. Mineralni sastav skarnova direktno zavisi od temperaturnih uslova, sadržaja karbonata u ...Kostić N. Bojan. Kontaktni metamorfizam gornjokrednih sedimentnih stena Rudnika, Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2021