Претрага
825 items
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Geostatički proračuni sanacije klizišta šipovima
U ovom radu su, polazeći od rezultata geotehničkih istraživanja, prikazani geostatički proračuni sanacije klizišta vertikalnim šipovima. Metodologija proračuna je složena, jer podrazumeva interakciju klizišta i stabilizirajućih šipova. Stoga se simultano analiziraju stabilnost klizišta i stabilnost šipova. Prilikom određivanja bočne otpornosti tla oko šipova koristi se metoda Brinč Hansena koja uzima u obzir trodimenzionalne uslove u tlu i može da se primeni u složenim geološkim uslovima koji su česti u Srbiji. Analize stabilnosti klizišta vrše se odgovarajućim metodama granične ravnoteže. ...sanacija klizišta, interakcija klizišta i šipa, bočna otpornost šipova, stabilnost klizišta i šipova... c — kohezija К K. - koeficijenti bočnog pritiska tla Dijagrami za određivanje kocficijenta K, i K. dati su na Slikama 2 i 3. Na ovim dijagramima B је širina/prečnik šipa, а ф је ugao unutrašnjeg trenja. = Ке = 759 К = 222 р c=1–S 80 g=45'__|--1""T" o=40. ——— ·_,··"' /" 50 — _ | = 40 | ___---81 ...
... 7___ 40.2 / -_'_________-–·—···""—–"·_– — 1,93 ;zi:: zip 00 __ —18.14 r= 5 1 ___ | _____log? | ) 4»/"_/ К'„' = 0 2а ф = 0% 2 р & a 2 20 0 5 102/B 15 20 2/8 Slika 3. Koeficijent bočnog.pritiska а koji zavisi od kohezije (Brinč Hansen, 1961) Figure 3. Coefficient of lateral pressure which is ...
... 460. , 2018, pp. 111-127. Duncan, J.M., Wright, S.G.: Soil strength and slope stability, John Wiley & Sons, New Yersey, 2005, pp. 297. Hansen, J. B.: The ultimate resistance of rigid piles against transversal forces, Danish Geotechnical Institute, Bulletin No. 12, Copenhagen, 1961. Hutchinson, J ...Slobodan Ćorić, Dragoslav Rakić, Dušan Berisavljević. "Geostatički proračuni sanacije klizišta šipovima" in Zbornik radova osmog naučno-stručnog međunarodnog savetovanja - Geotehnički aspekti građevinarstva, Savez građevinskih inženjera Srbije, (2019)
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A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia
When assessing the potential of renewable energy alternatives for electricity generation, it is necessary to implement a multi-perspective approach that includes economic, technical, environmental, and socio-political criteria. For the evaluation of criteria and alternatives, the Fuzzy Analytical Hierarchy Process (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a fuzzy numerical value scale for the assessment of expert judgments and energy indicators provides a more sensitive ...... available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Please cite this article as: B. Pavlović, D. Ivezić andM. Živković, Amulti-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case ...
... Accepted 4 February 2021 Available online xxxx Keywords: Electricity generation Renewable energy sources Multi-criteria decision analysis Serbia a b s t r a c t When assessing the potential of renewable energy alternatives for electricity generation, it is necessary to implement a multi-perspective ...
... could contribute to accomplishing renewable energy targets (SOR, 2020) since Serbia ∗ Corresponding author. E-mail address: boban.pavlovic@rgf.bg.ac.rs (B. Pavlović). is largely dependent on coal. Around 2/3 of domestic electricity generation originates from lignite-fired thermal power plants. The challenges ...Boban Pavlović, Dejan Ivezić, Marija Živković. "A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia" in Energy Reports, Elsevier BV (2021). https://doi.org/10.1016/j.egyr.2021.02.072
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Post Early Miocenevertical-axis clockwise rotation in the West Vardar Zone of Serbia
... Jurassic paleomagnetic results from stable core: Tectonic implications. Tecfonopihnsics 700701, |-- 18. Schmid, S.M., Bemoulli, D., Figenschuh, B., Matenco, B., Schefer, S., Schuster, R., Tischler, M. & Ustaszewski, K. 2008. The Alpine — Carpathian — Dinaric orogenic system: correlation and evolution ...Vesna Lesić, Emo Marton, Vesna Cvetkov, Dragana Jovanović. "Post Early Miocenevertical-axis clockwise rotation in the West Vardar Zone of Serbia " in Environmental, Structural and Stratigraphical Evolution of the Western Carpathians, 11th ESSEWECA Conference, Geophysical Institute, Slovak Academy of Sciences Bratislava (2018)
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Some models for determination of parameters of the soil oscillation law during blasting operations
... Surface S confined by continuous curve y = f (x), x-axis, and vertical lines x = a and x = b, if f (x) ě 0 for a ď x ď b (Figure 1), as the definite integral of the function f (x), obtains the following: S “ b ż a f pxq dx (17) Energies 2016, 9, 617 5 of 15 ...
... spaced, namely if: Ri`1 ´ Ri “ hi pi “ 1, 2, . . . , N ´ 1q (21) Energies 2016, 9, 617 5 of 15 a b X Figure 1. Surface S confined by continuous curve y = f(x), x-axis, and vertical lines x = a and x = b. When carrying out blasting operations, we register (measure) at suitable measuring points the values ...
... c 3 ¨ Q 4 ¨ π (4) Energies 2016, 9, 617 3 of 15 By replacing the value r0 from the Equation (4) into Equation (3), we obtain: v “ Kv ¨ ˝ 3 b 3¨Q 4¨π r ˛ ‚ n “ Kv ¨ ˜ 3 c 3 4 ¨ π ¸n ¨ ˆ 3 ? Q r ˙n “ Kv ¨ K1 ¨ ˆ r 3 ? Q ˙´n “ K ¨ ˆ r 3 ? Q ˙´n “ K ¨ R´n (5) where as: ˜ ...Suzana Lutovac, Dragan Medenica, Branko Gluščević, Rade Tokalić, Čedomir Beljić. "Some models for determination of parameters of the soil oscillation law during blasting operations" in Energies, Basel, Switzerland : MDPI (2018). https://doi.org/10.3390/en9080617
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Пројекат ПРИЗМА: Карактеризација и технолошки поступци за рециклажу и поновну употребу флотацијске јаловине рудника „Рудник“
Владимир Симић, Стефан Петровић, Филип Арнаут, Весна Цветков, Милена Костовић, Драган Радуловић, Јовица Стојановић, Владимир Јовановић, Дејан Тодоровић, Нина Николић, Јелена Сенћански, Грозданка Богдановић, Драгана Мариловић (2024)Владимир Симић, Стефан Петровић, Филип Арнаут, Весна Цветков, Милена Костовић, Драган Радуловић, Јовица Стојановић, Владимир Јовановић, Дејан Тодоровић, Нина Николић, Јелена Сенћански, Грозданка Богдановић, Драгана Мариловић. "Пројекат ПРИЗМА: Карактеризација и технолошки поступци за рециклажу и поновну употребу флотацијске јаловине рудника „Рудник“" in Записници Српског геолошког друштва, Београд : Српско геолошко друштво (2024)
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A Data Driven Approach for Raw Material Terminology
Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja (2021)The research presented in this paper aims at creating a bilingual (sr-en), easily searchable, hypertext, born-digital, corpus-based terminological database of raw material terminology for dictionary production. The approach is based on linking dictionaries related to the raw material domain, both digitally born and printed, into a lexicon structure, aligning terminology from different dictionaries as much as possible. This paper presents the main features of this approach, data used for compilation of the terminological database, the procedure by which it has ...sirovine, rudarstvo, terminologija, rečnik, terminološka aplikacija, mobilna aplikacija, digitizacija, leksički podaci, korpusi, otvoreni povezani podaci... Tomašević, A.; Stanković, R.; Utvić, M.; Obradović, I.; Kolonja, B. Managing mining project documentation using human language technology. Electron. Libr. 2018, 36, 993–1009. [CrossRef] 32. Stanković, R.; Krstev, C.; Lazić, B.; Škorić, M. Electronic Dictionaries—from File System to lemon Based ...
... , I.; Lazić, B. Terminology Acquisition and Description Using Lexical Resources and Local Grammars. In Proceedings of the 11th International Conference on Terminology and Artificial Intelligence, Granada, Spain, 4–6 November 2015; Volume 1495, pp. 81–89. 35. Stankovic, R.; Šandrih, B.; Krstev, C.; ...
... Appl. Sci. 2021, 11, 2892 7 of 22 Entries in DMMRT have one or more senses per each term, described by a definition, and labeled by small letters a, b, c,. . . , u. Each individual sense can be related to one or more other terms in the dictionary, and it can be followed by its bibliographic source. ...Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja. "A Data Driven Approach for Raw Material Terminology" in Applied Sciences, MDPI AG (2021). https://doi.org/10.3390/app11072892
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Synergy between the mineral deposit exploration and geothermal resources assessment on the example of "Valjevo" boron and lithium deposit in Serbia
Nebojša Atanacković, Vladimir Živanović, Ana Vranješ, Sava Magazinović, Marinko Toljić, Ana Arifović, Branislav Potić (2023)Exploration of mineral deposits involves a collection of vast data sets on geological characteristics of the area. These data can largely contribute to the assessment of the geothermal potential, which can lead to an increase in the share of geothermal resources in the energy mix of the extractive industry and the local community. On the example of the "Valjevo" B-Li deposit, data on structural settings and previous hydrogeological investigations were combined with the results of resource drilling and geophysical ...... geološka karta 1:100 000, List Valjevo L-34-136, , Savezni geološki zavod: Beograd, 1975. Filipović, 1., Pavlović, Z., Marković, B., Rodin, V., Marković, O., Gagić, N., Atin, B., Milićević, M. Osnovna geološka karta 1:100 000, List Gornji Milanovac L-34-137, Savezni Geološki zavoda: Beograd, 1978. ...
... increase in the share of geothermal resources in the energy mix of the extractive industry and the local community. On the example of the "Valjevo" B-Li deposit, data on structural settings and previous hydrogeological investigations were combined with the results of resource drilling and geophysical ...Nebojša Atanacković, Vladimir Živanović, Ana Vranješ, Sava Magazinović, Marinko Toljić, Ana Arifović, Branislav Potić. "Synergy between the mineral deposit exploration and geothermal resources assessment on the example of "Valjevo" boron and lithium deposit in Serbia" in Proceedings 9th International Conference mining and environmental protection, MEP23, Sokobanja, 24-27th May 2023, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet (2023)
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Production of electricity from coal-fired power plants and accompanying CO2 emissions: comparison of EU-27 and US
Even in the third decade of the 21st century, large power plants are still responsible for more than half of the electricity production in Europe and US. They predominantly use fossil fuels in their work, which results in the emission of pollutants into the air, soil and water. In addition to the production of electric energy, fossil fuels, including coal, are used for industrial purposes. Although the use of coal, especially in the countries of the European Union, is ...... ge ne ra ti on [1 Wh ] 1000 10,0 Pa rt ic ip at io n of co al in el ec tr ic it y pr od uc ti on [% ] 0,0 -- B F.G S-O-S T.O BBB .B -00 85B85BššŠ e a 82 – I I I I I RI :N-BR:Bo-Bo-O5-Bo-o5-Bo:Bso:BOB:Oo5-50:Bo-S0:o-B5-G0:-Bo-B5o:BeB: - Q e q RRRR RRRGSKSSSGSGSGS lss Total ...
... 5 200,0 FI IIIR FIFIIFIFFIFSFIEIEIISIIITIIIEI sagašasBssBRBBZBBB8 985889535%5%5855852SSSR geaeaggBggBEgag8B8B88888883BSSSBSSBBBBBaSBS čgBB BBB BB B RRRR RSRRRRRRRSRSSSSSE Figure 1. Coal production in EU-27 and US At one time, coal had the greatest importance in the EU-27 countries as an energy ...
... ——LFU-27 <——=US 0 eo w i e T T n o u 00 miuČ- O T W i m TO O ~ 0 O O a eNeon E:o:u: ' o e i e oč reeo oeezkžjjBNj“”oZB e e e eoeo>o S Wwe e esA Č e!đ e RT NTe ı.I I K TTKR OT G Figure 2. Ratio of specific electricity production in EU-27 a US Nevertheless, based on ... Uroš Djorgovski, Aleksandar Madžarević, Predrag Jovančić. "Production of electricity from coal-fired power plants and accompanying CO2 emissions: comparison of EU-27 and US" in International Conference on Global Energy and Climate Change - ICGRECC-23, New York, 2023, Research Galery- Science Leagues (2023)
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Surface functional groups and degree of carbonization of selected chars from different processes and feedstock
Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann (2022)The knowledge ofthe structural and chemical properties of biochars is decisive for their application as technical products. For this reason, methods for the characterization of biochars that are generally applicable and allow quality control are highly desired. Several methods that have shown potential in other studies were used to investigate two activated carbons and seven biochars from different processes and feedstock. The chars were chosen to cover a wide range of chemical composition and structural properties as a hardness ...Biougalj, različiti procesi dobijanja, različite sirovine, površinski aktivne grupe, x-ray, FT-IR,XPS... -6223(97)00173-5. Glaser B, Haumaier L, Guggenberger G, Zech W. The 'Terra Preta' phenomenon: a model for sustain- able agriculture in the humid tropics. Naturwissenschaften. 2001; 88: 37—41. https://doi.org/10.1007/ s001140000193 PMID: 11302125 Steiner C, Glaser B, Teixeira WG, Lehmann J, Blum ...
... hydrothermal carbonisation of corn stover. Aust J Soil Res. 2010; 48: 618—26. http://dx.doi.org/10.1071/SR10010. Singh B, Raven MD. X-ray diffraction analysis of biochar. In: Singh B, Camps-Arbestain M, Lehmann J, editors. Biochar: A guide to analytical methods, 1st ed., CRC Press/Taylor Francis Group ...
... accordance with the particle size (75% < 40 um). Fig 1b shows the highly porous structure of PW700g Fig 1. SEM images of selected chars: (a) AC2, (b) PW700g, (c), SW500f and (d) M200h. ittps://doi.org/10.1371/journal.pone.0277365.g001 PLOS ONE | hitps://doi.org/10.1371/journal.pone.0277365 November ...Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann. "Surface functional groups and degree of carbonization of selected chars from different processes and feedstock" in PLOS ONE (2022). https://doi.org/10.1371/journal.pone.0277365
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Hidrogeohemija prirodnih radioaktivnih elemenata u podzemnim vodama Srbije
Marina D. Ćuk (2018-02-23)Osnovni cilj doktorske disertacije predstavljao je definisanje prirodnih koncentracija (engl. background values) U, Th, i K u podzemnim vodama, i definisanje hidrogeohemijskih uslova koji utiču na distribuciju navedenih elemenata u podzemnim vodama...prirodni radioaktivni elementi, podzemna voda, geohemijske sredine, hidrogeohemijski uslovi, neparametarska statistička analiza, logistički model, hidrohemijsko modeliranje... materije predstavlja jedan od najvažnijih faktora za postizanje ravnotežnih uslova: aA + bB ↔ cC +dD K = {C}c ∙{D}d{A}a∙{B}b Gde su a, b, c, d – broj molova reaktanata A i B, i produkata C i D Odstupanje od ravnoteže se iskazuje proizvodom jonske aktivnosti (Q): Q = (aD∙aC)/(aA∙aB) ≠ K Pre ...
... 9(2):595 – 604. 42. Filipović B, Dimitrijević N. 1991. Mineralne vode. Rudarsko-geološki fakultet, Beograd. 43. Filipović B. 2003. Mineralne, termalne i termomineralne vode Srbije. Univerzutet u Beogradu, Rudarsko-geološki fakultet, Beograd. 44. Filipović B, Krunić O, Lazić M. 2005. Regionalna ...
... 78. Karamata S, Krstić B. 1996. Terranes of Serbia and neighboring areas. In: Knežević V, Ðorđević P, Krstić B (eds.). Terranes of Serbia. University of Belgrade and Serbian Academy of Sciences and Arts, Belgrade, pp. 25 – 40. 79. Kawamoto T, Nakajima J, Reynard B, Toh H. 2015. Special issue ...Marina D. Ćuk. "Hidrogeohemija prirodnih radioaktivnih elemenata u podzemnim vodama Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-02-23)
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Rule-based Automatic Multi-word Term Extraction and Lemmatization
In this paper we present a rule-based method for multi-word term extraction that relies on extensive lexical resources in the form of electronic dictionaries and finite-state transducers for modelling various syntactic structures of multi-word terms. The same technology is used for lemmatization of extracted multi-word terms, which is unavoidable for highly inflected languages in order to pass extracted data to evaluators and subsequently to terminological e-dictionaries and databases. The approach is illustrated on a corpus of Serbian texts from ...... are: (a) a head-noun of a MWT is not masculine, so the adjective simple word lemma (always given in the masculine gender) does not agree with it; (b) a MWT lemma should be in the plural, although singular forms exist for simple word constituents. The first case occurs with the MWT električna ...
... evaluator. The evaluator performed two tasks: (a) checking for each lemma and all its retrieved forms whether they actually represent a MWU, and (b) verifying for each proposed lemma whether it is a correct lemma. The precision of retrieval was calculated for each of these tasks and the results ...
... approach for Arabic multi-word term extraction. Proc. Of the Natural Language Processing and Knowledge Engineering, 2009. NLP-KE 2009, pp. 1--8. Broda, B., Derwojedowa, M., and Piasecki, M. (2008). Recognition of structured collocations in an inflective language. Systems Science, 34, pp. 27--36. Chen ...Ranka Stanković, Cvetana Krstev, Ivan Obradović, Biljana Lazić, Aleksandra Trtovac. "Rule-based Automatic Multi-word Term Extraction and Lemmatization" in Proceedings of the 10th International Conference on Language Resources and Evaluation, LREC 2016, Portorož, Slovenia, 23--28 May 2016, European Language Resources Association (2016)
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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 ...Aleksandar Mijatović, Biljana Šmit, Ana Rilak, Biljana Petrović, Dragan Čanović, Živadin D. Bugarčić. "NMR kinetic studies of the interactions between [Ru(terpy)(bipy)(H2O)]2+ and some sulfur-donor ligands" in Inorganica Chimica Acta, Elsevier BV (2012). https://doi.org/10.1016/j.ica.2012.09.016
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Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?
Стефан Петровић, Наталија Батоћанин (2020)У раду су приказани резултати испитивања серпентинисаних харцбургита Брђана (43°58'45.1" СГШ, 20°25'12.6" ИГД) и талкизираних харцбургита откривених у интервалу 429-559.8 m у истражној бушотини 330А/18 (44°07'33.2" СГШ, 20°30'28.5" ИГД) на Руднику. Узорци оба локалитета показују карактеристике резидуалних харцбургита из омотача, односно тектонита; лепидобластичне, бластозрнасте, или порфирокластичне структуре и масивне текстуре. Серпентинисани харцбургити и серпентинити Брђана су изграђени од серпентина, ретких реликата оливина и ортопироксена, акцесорног спинела, и веома ретког секундарног магнезита и магнетита. Најдоминантнији састојак (местимично гради и преко ...... Government Printing office, Washington. FILIPOVIć, I., MARKOVIĆ, B., PAVLOVIĆ, Z., RODIN, V., MARKOVIĆ, O. (1978): Osnovna geološka karta SFRJ 1:100000. Tumač za list Gornji Milanovac L34-137. Savezni geološki zavod, Beograd. MARTIN, B., FYFE, S. W. (1970): Some experimental and theoretical observations ...
... Geomaterials (Petrology) doi:10.1016/j.crte.2003.08.006 MOODY, B. J. (1976): Serpentinization: a review. Lithos, 9, pp. 125-138. O'HANLEY, S. D. (1996): Serpentinites. Oxford University Press, New York, 277 pp. TROMMSDORFF, V. & EVANS, W. B. (1977): Antigorite-Ophicarbonates: phase relations in a portion ...
... (2010-14): Strukturno-geološka istraživanja sa izradom karte 1:2000 ležišta Rudnik. Fond stručnih dokumanata rudnika „Rudnik”, Rudnik. EVANS, W. B., JOHANNES, W., OTTERDOOM, H., TROMMSDORFF, V. (1976): Stability of chrysotile and antigorite in the serpentine multisystem. Schweiz. Mineral. Petrogr ...Стефан Петровић, Наталија Батоћанин. "Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?" in Записници српског геолошког друштва, Српско геолошко друштво, Београд (2020)
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Hydrogeochemical distribution of Ca and Mg in groundwater in Serbia
Petar Papić, Jovana Milosavljević, Marina Ćuk, Rastko Petrović . "Hydrogeochemical distribution of Ca and Mg in groundwater in Serbia" in Groundwater: Occurrence and Significance for Human Health, CRC Press, Balkema - Taylor & Francis Group (2014)
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Projekcija razvoja osmatračke mreže podzemnih voda u Republici Srbiji
Petar Dokmanović, Zoran Stevanović, Saša Milanović, Bojan Hajdin, Vesna Ristić-Vakanjac, Veljko Marinović (2016)... relevantnom nacionalnom i EU regulativom 2/Obuhvatanje: a) postojeće mreže objekata RHMZ i dela objekata postojećih regionalnih osmatračkih mreža b)registrovanih neposrednih korisnike podzemnih voda u Republici Srbiji (RS) c)značajnijih nekaptiranih izvora, odnosno, novih namenskih pijezometara ...
... projekta „Istraživanje, optimalno korišćenje i održivo upravljanje podzemnim vodnim resursima Srbije” (2006.-2011.), i to: a) ankete dela izvorišta PV b) hidrogeološka karta teritorije RS“ i „Karta ugroženosti PV RS” 6/Fondovska dokumentacija RGF-DHG 7/Karta korišćenja zemljišta-CORINE Land Cover (2006) ...
... Obuhvatanje: a) postojeće mreže objekata RHMZ i dela postojećih objekata regionalnih osmatračkih mreža koje su u nadležnosti HE Đerdap i JP Vode Vojvodine b) registrovanih neposrednih korisnika podzemnih voda (PV) u Republici Srbiji (RS) v) značajnijih nekaptiranih izvora (u brdsko- planinskim i, posebno ...Petar Dokmanović, Zoran Stevanović, Saša Milanović, Bojan Hajdin, Vesna Ristić-Vakanjac, Veljko Marinović. "Projekcija razvoja osmatračke mreže podzemnih voda u Republici Srbiji" in Vodoprivreda 48 no. 279-281, Beograd : Srpsko društvo za odvodnjavanje i navodnjavanje (2016)
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Петрологија црвених пешчара источне Србијe
Андреј Марковић (2024)У источној Србији формација црвених пешчара има велико распрострањење и улази у састав многих планина овог дела наше земље. Формацију чине кластичне стене интензивно црвене боје псамитске, ређе псамитско-псефитске структуре и алевритске структуре. Ове стене леже трансгресивно преко старијих пермо-карбонских и карбонских стена, док навише прелазе у доњотријаске седименте. Формација црвених пешчара захвата два појаса унутар Карпато-балканида – унутрашњи и средишњи део. Узорци анализирани у овом раду део су средишњег појаса. Тема завршног рада је петрологија црвених пешчара источне ...... Cp0ouje Kanpnunar Menrop Anjipej MapkonBuh [11/17 TIpod. np Buonera Tajuh Beorpajn, jy.r, 2024. Kowmucuja: 1. Jip Baonera Tajah, BaH. npo(b., MeHTOp Pynapcko-reonomrku (bakyanrer, Beorpaji 2. Jip Jlanuna CpehkoBuh-Barohanus, pejn. npodQ., umaH Pynapcko-reonomrku (bakyanrer, Beorpaji ...
... pajloBa ce OJIHOCH Ha perHOHaJIHO-TČKTOHCKH TIIOJIOXKaj OOnacTH, TeOMOPp(pomorHjy H HCTpa)KHBaHbc MHHEePpaJIHHX CHpOBHHa. V „TeomorajH McrouHe CpOuje” B. IIerkoBHh (1935) caHTeTH3yje pe3yarraTe peruoHa:Hor HcrnaiTHBaMba TepeHa HcrounHe Cpouje H nor:e)e Ha crpykTypHy rpaby, a Koja Je ripHKa3aO y CBOJHM ...
... CyCCJIHHM CTEHAaMa pa3pemaBajiH Cy y CBOJHM paMOBHMa: K. IHIerKkoBHh (1937), P. JoBaHoBuh (1951), )9K. Đopbenuh (1957) a A. AHToHonBHh (1980). MaroBuh B. y CBOM pamy H3 1999. roy. neTaJbHO HpHKa3yJe (pH3HuKe KapakTepHcCTHKe IIpBeHHX HČpMCKMX memuapa yrpabeHMx y IHpKBy CB. Mapko Ha Tamrmajnany y Beorpa/lny ...Андреј Марковић. Петрологија црвених пешчара источне Србијe, 2024
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Mineragenetske karakteristike i potencijalnostjuvelirskih mineralnih resursa leckog vulkanskog kompleksa
Zoran Ž. Miladinović (2012-12-11)Jedan od najznačajnijih regiona u Srbiji, sa stanovišta potencijalnosti juvelirskih mneralnih resursa, predstavlja lecki vulkanski kompleks, tercijarne starosti i dominantno andezitskog sastava. Ovaj vulkanski kompleks površine preko 700km2 nalazi se u južnojSrbiji na prostoru imeđu Kuršumlije, Lebana i Medveđe.Prvi su pažnju na juvelirske mineralne sirovine ovog prostora obratili graditeljiJustinijane Prima-e (VI vek). Najintenzivnija istraživanja izvršena su u periodu 1980–1982. ali samo na malom prostoru krajnjeg jugoistočnog dela vulkanskog kompleksa.U Leckom vulkanskom kompleksu dominiraju andezitske stene i njihovi piroklastiti.Smatra se ...vulkanski kompleks, mineragenetske karakteristike, juvelirski mineralni resursi, nalazišta, potencijalnost, kvarc, ametist, ahat, kalcedon, jaspis, prognoza... važećim propisima, proračunate su geološke rezerve juvelirskih sirovina, a zatim je itvršena (Pejčić M., 1980, Pejčić M. i dr., 1981a i b, Pejčić M. i dr., 1981a i b) ekonomsko-tehnička analiza rezultata, urađeni su projekti eksploatacije i prerade rude, kao i investicioni program izrade objekata ...
... kojeg je urađena analiza) — k – kvarc; b) mikrofotografija pod skenirajućim elektronskim mikroskopom (katodoluminisc.) poliranog uzorka ahata; c) mikrofotografija poliranog uzorka ahata u odbijenoj svetlosti pod gemološkim mikroskopom (Mueller MTX-5c). Na slici b i c nalaze se približno iste oblasti ...
... u potpunosti sačuvana struktura drveta bez naknadnih poremećaja, b) nešto niži stepen očuvanosti originalne drvenaste strukture kao posledica procesa nastali nakon izvršene petrifikacije; c) šupljina u uzorku silifikovanog drveta (b) ispunjena sitnim pravilnim mikrokristalima kvarca (gorskog kristala) ...Zoran Ž. Miladinović. "Mineragenetske karakteristike i potencijalnostjuvelirskih mineralnih resursa leckog vulkanskog kompleksa" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2012-12-11)
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Uticaj reaktiviranih raseda na razvoj kraškog procesa: primeri iz Karpato-balkanida istočne Srbije
Ana Mladenović (2022)Carpatho-Balkanides represent part of the complex Dinaric - Carpatho - Balkan orogenic system, that geomorphologically dominates the central part of the Balkan peninsula. The existence of this orogenic system is a result of closure of the Neotethys ocean and subsequent convergence of the Adriatic microplate and the Eurasian continent, that has been still active in the recent times. Such geodynamic characteristics conditioned complex tectonic structures, multiply reactivated during Late Cretaceous and Cenozoic. The main aim of this research is ...Ana Mladenović. "Uticaj reaktiviranih raseda na razvoj kraškog procesa: primeri iz Karpato-balkanida istočne Srbije" in Knjiga apstrakata multidisciplinarne konferencije "Karst 2022 - Značaj, stanje i perspektive korišćenja i zaštite resursa u karstu", Beograd : Srpska akademija nauka i umetnosti (2022)
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Hibridni sistem za planiranje i analizu ventilacije rudnika
... tip) : : pov_vred -atribut : [ tip [ = poc vrednost]] Ime Klase 1..n 0..nuloga A uloga B Klasa A Klasa B {ili} veza A veza B Klasa Celo sadrži Klasa Deo Opšta klasa Specijalizovana klasa Klasa A Klasa B 323 O knjizi1 Metodologija planiranja ventilacije rudnika 2 Modeliranje procesa strujanja ...
... ijjiij vBvv =′′ρ−=τ′ . (3.33) U ovom slučaju koeficijent B predstavlja turbulentnu viskoznost (dinamičku, B/ρ - kinematičku). Koeficijent viskoznosti η odgovara međumolekulskoj promeni količine kretanja, a koeficijent turbulentne viskoznosti B se vezuje za makroprenos količina kretanja konačnih masa ...
... mešanja strujnica. Kada bi se za B usvojila konstantna vrednost pokazalo bi se da je nekoliko desetina hiljada puta veća od η. Međutim, merenjima je utvrđeno da se B ne može smatrati konstantom za dati fluid ili turbulenciju, jer se menja duž preseka. Na primer, za cevi, B je jednako nuli na zidovima, ...Nikola Lilić, Ranka Stanković, Ivan Obradović. Hibridni sistem za planiranje i analizu ventilacije rudnika, Rudarsko-geološki fakultet, Univerzitet u Beogradu, 2000
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Introduction to special section: Characterization of hydrocarbon and geothermal resource potential and carbon sequestration opportunities of the Pannonian Basin
Balázs Németh, Gábor Tari, Gábor Bada, Dejan Radivojević, Bruno Tomljenovic, Csaba Krézsek. "Introduction to special section: Characterization of hydrocarbon and geothermal resource potential and carbon sequestration opportunities of the Pannonian Basin" in Interpretation, AAPG SEG (2018). https://doi.org/10.1190/INT-2017-1207-SPSEINTRO.1