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Упит dcterms_subject_txt:open cut excavation

178 items

  • Determination of Mechanical Properties of Altered Dacite by Laboratory Methods

    Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović (2021)
    This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...
    Geology, Geotechnical Engineering, Engineering Geology
    ... diameter, of rock material were extracted by a high-quality laboratory coring machine with a diamond bit. The ends of the specimens and discs were then cut, polished, and shaped to the required height and diameter ratio with tolerances according to the American Society for Testing and Materials—ASTM [17] ...
    ... на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 minerals Article Determination of Mechanical ...
    ... claims in published maps and institutional affil- iations. Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ ...

  • Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete

    Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović (2021)
    sagorevanje lignita, otpadna šljaka, zamena cementa, proizvodnja maltera i betona, fizičko-mehanička i fizičko-hemijska karakterizacija
    ... was determined according to standard EN 1015-12. A layer of mortar 10 ± 1 mm was applied to the concrete substrate. Mortar and concrete surfaces were cut to 2 mm of height using the cylindrical drill having 50 mm diameter. Afterward, a steel dolly 50 mm in diameter was glued to the mortar using epoxy glue ...
    ... на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 minerals Article Application of Lignite ...
    ... claims in published maps and institutional affil- iations. Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ ...

  • Geochemical characterization of sediments from the archaeological site Vinča – Belo Brdo, Serbia

    Gorica Veselinović, Dragana Životić, Kristina Penezić, Milica Kašanin-Grubin, Nevenka Mijatović, Jovana Malbašić, Aleksandra Šajnović (2020)
    Earth-Surface Processes

  • Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija

    Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić (2016)
    flotacijska jalovišta, životna sredina, višekriterijumska analiza, ekologija, Trepča
    ... in the field of analysis and ranking of the influence tailing ponds have on the surrounding ecosystem. Because of its primary purpose which is excavation and processing of mineral resources, MMCC “Trepča” should be more focused on increased concern about environmental protection. MMCC “Trepca” is ...
    ... на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 energies Article Application of a Method ...
    ... http://www.slglasnik. com/ (accessed on 22 August 2016). (In Serbian) © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4 ...

  • Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach

    Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2021)
    Poor water solubility of new chemical entities is considered as one of the main obstacles in drug development, as it usually leads to low bioavailability after administration. To overcome these problems, the selection of the appropriate formulation technology needs to be based on the physicochemical properties of the drug and introduced in the early stages of drug research. One example of the new potential drug substance with poor solubility is DK-I-60-3, deuterated pyrazoloquinolinone, designed for the treatment of various neuropsychiatric ...
    pyrazoloquinolinones, nanocrystals, wet media milling, fasted/fed bioavailability
    ... Corporation, Tokyo, Japan). Dissolution Study For the dissolution study, the direct dialysis bag method was used. Dialysis bag (cellulose membrane MW cut-off 12000, Sigma-Aldrich, St. Louis, MO, USA) was filled with 2 mL of nanocrystal dispersion (F5, F6 or F8), corresponding suspension (S5, S6, or S8) ...
    ... на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 pharmaceutics Article Overcoming the Low ...
    ... claims in published maps and institutional affil- iations. Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ ...

  • Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material

    Borislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić (2022)
    Pyrophyllite, with the chemical formula Al2Si4O10(OH)2, is a naturally occurring and abundant van der Waals mineral belonging to the group of phyllosilicates. It is very soft, layered crystal used for sculpting and an excellent electrical and thermal insulator aimed for the operation at high pressure and temperature. Here, for the first time, two-dimensional (2D) pyrophyllite obtained by both mechanical and liquid phase exfoliation is presented and investigated at the nanoscale. The layered structure provides low friction coefficient of around ...
    Atomic force microscopy, Insulating properties, Nanofriction and wear, Natural two dimensional materials, Phyllosilicates, Pyrophyllite

  • 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 ...
    sucker rod pump, fluid production, mechanical extraction methods,, Prosper, QROD, RODSTAR
    ... Motor & Power Meter Fluid level tvd (m from surface): — 120 Buoyan rodwelghM(N): 16815 268 EOk Pol. Rod Power (KW): 5 NNo: 035 , Fo/SKr: 039 Water cut: Power meter - Waler sp. gravitv: — 1.02 Elect cost: 5,06/KWH Required prime mover size BALANCED BALANCED Oi density (qcm?); | 0.92 - - Tvpe: NEMAD ...
    ... на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 University of Belgrade Faculty of Mining ...
    ... where the fluid is more compressible (a mixture of gas and liquid), a change in volume is needed to decrease or increase the pressure, 1.e., to open and close the valves. This required volume can only be achieved through increased movement within the cylinder. The working cycle is illustrated ...

  • Optimizacija dužine strele rotornih bagera u funkciji stabilnosti kosina i efektivnosti rada na površinskim kopovima lignita Srbije

    Branko M. Petrović (2016-07-12)
    Rotorni bageri su mašine koje se u današnje vreme najviše primenjuju uprocesu masovne eksploatacije uglja zahvaljujući, pre svega, nizu tehničkoeksploatacionihprednosti u odnosu na druge vrste bagera. Raznovrsnirudarsko-tehnički zahtevi otkopavanja doprineli su razvoju nekoliko tipova ovihmašina, tako da svaki od njih ima svoje prednosti i nedostatke u odnosu nadrugi tip.Predmet istraživanja u disertaciji odnosi se na izbor optimalnekonstrukcije strele bagera i njene usaglašenosti sa uslovima radne sredine kojiće vladati na površinskim kopovima lignita Srbije, imajući u vidu složene usloveeksploatacije (velika ...
    površinski kop, parametri bloka, kapacitet, rotorni bager, strelabagera, geomehanika, stabilnost kosina, ekonomija
    ... stability, during excavation of lignite excavation in Serbia, would allow significantly more reliable solutions, both the structure and geometry of the mine, i.e. its required heights and angle of inclination, with better economic and environmental effects. Keywords: open pit, block parameters ...
    ... lignita Srbije;Bucket wheel excavators boom length optimization in function of slopes stability and effectiveness of operation on the Serbian lignite open cast mines Branko M. Petrović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Optimizacija dužine strele ...
    ... lignita Srbije;Bucket wheel excavators boom length optimization in function of slopes stability and effectiveness of operation on the Serbian lignite open cast mines | Branko M. Petrović | Универзитет у Београду | 2016-07-12 | | http://dr.rgf.bg.ac.rs/s/repo/item/0004052 Дигитални репозиторијум Руда ...

  • Razvoj integralnog modela za optimizaciju diskontinualnog sistema proizvodnje na površinskim kopovima nemetala

    Miodrag Čelebić (2024)
    Izbor optimalne mehanizacije u diskontinualnom sistemu transporta je jedna od najvažnijih odluka koju treba donijeti prilikom projektovanja površinskih kopova. Pri izboru optimalne mehanizacije, uticaj ima veliki broj faktora, kako prirodnih – geoloških i ekoloških, tako i tehničkih, ekonomskih i socijanih. Neki od njih se mogu izraziti numerički, u određenim mijernim jedinicama, a neki opisno, lingvističkim varijablama, shodno uslovima koji vladaju na rudnim ležištima, a koje karakterišu visok stepen neizvjesnosti i neodređenosti kako prilikom istraživanja, tako i tokom procesa eksploatacije ...
    izbor mehanizacije, tehnologija eksploatacije, diskontinualani sistem, ekspertsko odlučivanje, lingvističke varijable, MCDM, FAHP

  • Strain partitioning in a large intracontinental strike-slip system accommodating backarc-convex orocline formation: The Circum-Moesian Fault System of the Carpatho-Balkanides

    Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga (2022)
    oroklini, raspodela deformacija, transkurentna kretanja, Karpato-balkanidi, Cirkum-mezijski rasedni sistem
    ... (Fig. 6). Two strands of the Rtanj-Pirot Fault splay off of the Timok Fault in the SSE, while to the NNW they show secondary splays that are cross-cut by the western strand. The example of structure S20 (Fig. 6) shows that the eastern NNW-SSE oriented strand changes its orientation by splaying into ...
    ... Sokobanja-Zvonce and Rtanj-Pirot Faults, as well as numerous other similarly oriented smaller faults (Figs. 4 and 6). All these structures cross-cut the Cretaceous nappe-stack of the Carpatho- Balkanides orocline, including the Danubian nappes, and part of the adjacent Balkanides (Figs. 2 and 3) ...
    ... publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Global and Planetary Change 208 (2022) 103714 Available online 29 November 2021 0921-8181/© 2021 The Authors. Published by Elsevier B.V. This is an open access article under ...

  • Optimizacija i planiranje površinskih kopova stohastičkim modelima

    Dejan R. Stevanović (2015-05-29)
    Savremeno rudarstvo izloženo je stalnom trendu pogoršanja uslova poslovanja.Mogućnost ostvarenja ekonomskih i drugih ciljeva rudarskog projektakompromitovana je stalnim pogoršanjem kvaliteta ležišta na kojima se vršieksploatacija, kao i značajnoj dozi neizvesnosti povezane sa geološkim,ekonomskim i tehničkim parametrima proizvodnje. U ovako kompleksnimuslovima poslovanja, matematički modeli sposobni da odgovore značajnimizazovima, odnosno ponude optimalna rešenja kojima se garantuje maksimalnoispunjenje projektovanih ciljeva, nameću se kao neophodnost.Trenutni, konvencionalni pristup optimizaciji i planiranju površinskih kopovazasniva se na algoritmima, razvijenim sredinom prošlog veka čije je opšteobeležje deterministički ...
    površinski kop, planiranje, optimizacija, stohastički modeli, kontrola kvaliteta uglja, neizvesnost.
    ... 1983, Open Pit Optimization Method, XVIII APCOM, Institute of Mining and Metallurgy, London, England Caccetta, L. and Hill, S.P., 2003, An application of branch and cut to open pitmine scheduling. J. Global Optim., vol. 27, str. 349 – 365. Caccetta, L., Kelsey, P., Giannini, L.M., 1998, Open pit mine ...
    ... ciljeva. Strateškim planiranjem generalno se utvrđuje vrednost projekta tako što se definišu osnovni elementi rudarske proizvodnje: − granični sadržaj (cut-off) koji definiše materijal kao rudu ili jalovinu, − eksploataciona granica površinskog kopa, odnosno ukupne rezerve rude i jalovine, − generalni ...
    ... uslove rada, i mogu biti značajno drugačiji u slučaju rada opreme u specifičnim uslovima kopa. Granični sadržaj u eksploataciji i preradi, odnosno cut-off, predstavlja parametar koji direktno utiče na vrednost projekta. Postoji više tipova graničnog sadržaja ali je za proces kreiranja EVB, odnosno ...

  • 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
    ... interpretacija koja pronalazi najbolju graničnu vrednost (engl. cut-off vrednost) između senzitivnosti (Se) i specifičnosti (Sp) za binarno kodiranu varijablu (Slika 9.1.) (Faraggi and Reiser 2002). Idealno, najbolja granična vrednost (cut- off) omogućava najvišu specifičnost i senzitivnost u isto vreme ...
    ... Activity in Non-saline Water; 1992 (ISO/TC 147). 74. Janičić B, Novović Z. 2011. Procena uspešnosti u klasifikovanju rezultata na osnovu graničnih (cut-off) skorova: Receiver operating characteristic curve. Primenjena psihologija 4: 335 – 351. 75. Jevremović T. 2009. Nuclear Principles in Engineering ...
    ... на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 UNIVERZITET U BEOGRADU RUDARSKO-GEOLOŠKI ...

  • Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications

    Vesna Lesić, Emo Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov (2018)
    The Vardar-Tethyan mega-suture between the Eurasian and Adria (Gondwana) margins comprises remnants of oceanic lithosphere of Neotethys and distal parts of the adjacent continental margins including unconformable Late Cretaceous sedimentary cover and Cenozoic igneous rocks of post-obduction age. This study provides kinematic constraints for displacements and rotations affecting the Serbian part of the West Vardar and Jadar-Kopaonik units after the closure of the Neotethyan (= Sava) Ocean. The targets of the paleomagnetic research were Late Cretaceous sediments representing an ...
    Paleomagnetism, Clockwise rotation, Dinarides, West Vardar zone
    ... glaciation and gravity (Urošević et al. 1973a, b). 4 Laboratory processing One, or when long enough, several standard - size speci- mens were cut from the cores of one inch diameter. Then the NRM was measured in the natural state using JR-5 and JR-5A magnetometers (AGICO, Brno). This was followed ...
    ... Zijderveld diagrams: projection of the NRM vector into the horizontal (black dots) and into the vertical (open circles), for the normalized intensity/susceptibility versus temperature diagrams: open circles: susceptibility, dots: intensity Clockwise vertical-axis rotation in the West Vardar zone of Serbia: ...
    ... на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 Clockwise vertical-axis rotation in the West ...

  • Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation

    Taco Broerse, Nemanja Krstekanić, Cor Kasbergen, Ernst Willingshofer (2021)
    kontinentalna tektonika: kompresija, kontinentalna tektonika: ekstenzija, kontinentalna tektonika: transkurentni i transformni rasedi, pukotine, rasedi, zone snažnih deformacija, kinematika deformacija kore i omotača, teorijska mehanika, modelovanje
    ... lies below the entire model and is connected to an electric motor that applies a northward pull at a constant velocity of V = 10 cm hr–1. A narrow N–S cut in the middle of this plastic plate (dashed green line in Fig. 11) allows for the translation and rotation of the moving plate around a fixed pin (red ...
    ... on top of the moving plate, while in the northwestern part of the model it is located below the moving plate (Fig. 11), which is facilitated by the cut in the moving plate. Our set-up allows the moving plate to translate into the area north of the pin, imposing a convergent deformation south of the ...
    ... на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 Geophys. J. Int. (2021) 226, 984–1017 doi: ...

  • Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise

    Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Mladen R. Nedimović, Juan Pablo Canales, Hélène D. Carton, John C. Mutter, Javier Escartín (2023)
    Multidisciplinary

  • Uticaj površinske obrade kamena na promenu primarne poroznosti

    Ana Radivojević (2024)
    Površinska obrada kamena je izuzetno bitna kod stena koje se koriste u izgradnji svih vrsta objekata. Površinskom obradom se direktno utiče, ne samo na estetska svojstva kamena nego i na njegove fizičko-mehaničke karakteristike. Cilj ovog završnog rada je analiza uticaja poliranja i rezanja kao tehnoloških procesa obrade na poroznost odabranih vrsta arhitektonsko-građevinskog kamena. Ispitivane stene su gabro „Nero Assoluto“, granit sa površinskog kopa „Ploče“, granit African Red, krečnjak sa lokaliteta „Skržut“ i krečnjak poznat pod nazivom „Sirogojno crveni“.
    polirana površinska obrada kamena, rezana površinska obrada, poroznost, kapilarno upijanje vode
    ... ” African Red granite, limestone from the locality “Skržut,” and limestone known as “Sirogojno Red.” Keywords: polished surface stone treatment, cut surface treatment, porosity, capillary water absorption. SADRŽAJ |06 ) b VAAAAAA AAAAAA AAAAAA || PA ::Say ) :(o AARAAA RAAAAAA AAAAAA AAAAAA ...
    ... на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 Univerzitet u Beogradu Rudarsko-geološki ...

  • 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
    ... dok se glavna zona argilitske alteracie nalazi po obodu i ispod Gornje rudne zone. Srednji sadržaju bakra u graničnim konturama geoloških rezervi (Cut-off) 0,3% Cuekv u Gornjoj, masivno-sulfidnoj do semi-masivno-sulfidnoj rudi koja je predmet ovog Elaborata, iznosi 2,43 % Cu, a zlata 1, 53 g/t. ...
    ... на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 Univerzitet u Beogradu Rudarsko – geološki ...

  • Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes

    Jelena Malenović Nikolić, Dejan Vasović , Ivana Filipović , Stevan Mušicki, Ivica Ristović (2016)
    menadžment, rudrastvo i energetski kompleksi, okruženje, održivi razvoj, mrežno planiranje
    ... Introduction Mining and energy complexes represent significant sources of air, water, and soil pollution, through technological processes from coal excavation to ash disposal. The consequences for environmental quality are related to temporary or permanent destruction of agricultural land, deterioration ...
    ... of the Municipality of Požarevac: Požarevac, Serbia, 2002. (In Serbian) © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4 ...

  • Neogena i kvartarna herpetofauna (Anura i Squamata) Srbije : doktorska disertacija

    Dragana D. Đurić (2019)
    U radu je prvi put opisan deo herpetofaune (Anura i Squamata) iz neogenih i kvartarnih lokaliteta Srbije. Obrađeni su lokaliteti Sibnica, Prebreza, Lazarevc, Vračević i Riđake, neogene starosti. Lokaliteti kvartarne starosti su pećine Mala i Velika Balanica, Pešturina, Hadži Prodanova, Baranica, Vrelska pećina i sedimentne ispune fisura u kamenolomima Venčac i Beočin. U radu je prikazana je taksonomska analiza herpetoloških ostataka. Pored taksonomske analize fosilnog materijala dat je kratak geografsko-geološki opis proučavanih lokaliteta, osnovne osteološke karakteristike anura i skvamata ...
    paleoherpetofauna, Anura, Squamata, kvartar, pleistocen, neogen, Srbija, paleoekologija, paleoklima
    ... 223-231. 138 Ivanov, M. 1995. Pleistocene reptiles at the locality of the Stranska skala Hill, In: Musil, R. (ed.), Stranska Skala Hill. Excavation of Open-Air Sediments 1964–1972. Moravian Museum, Brno, Anthropos series 26(N.S.18): 93–109. Ivanov, M. 1997. Old Biharian reptiles of Żabia Cave ...
    ... premaksila: lh – lamina horizontalis, pm – processus maxilaris, pn – processus nasalis, sd – sulcus dentalis. maksila: cd – crista dentalis. en – excavation nasalis, f – foramina pro rami nervorum, fb – facies bucalis, fi – facies interna, ft – facies triangularis, in – incisura nasalis, lh – lamina ...
    ... на www.dr.rgf.bg.ac.rs The Digital repository of The University of 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 UNIVERZITET U BEOGRADU RUDARSKO-GEOLOŠKI ...

  • Моделирање утицаја одступања линије најмањех отпора од пројектоване на интензитет потреса од минирања

    Стефан Милановић (2024)
    Према дефиницији линија најмањег отпора представља најкраће растојање од центра минског пуњења до слободне површине. Oвим истраживањем представљен је утицај линије најмањег отпора, као и њеног одступања од пројектоване на интезитет потреса услед минирања. Проблем линије најмањег отпора је веома заступљен у пракси, где се занемарује изглед слободне површине, који може бити врло неправилан. Линију најмањег отпора је потребно мерити целом дужином минске бушотине према слободној површини, иако је у пракси случај да се мери најчешће као растојање од ...
    линија најмањег отпора, 3D модел, потреси услед минирања, минирање, слободна површина, метода раздвојених елемената