Претрага
1496 items
-
Модел померања терена услед утицаја рударских радова на основу радарских сателитских снимака
Зоран Гојковић (2023)Површински коп, као систем који обезбеђује енергетску стабилност или снабдевање сировинама које су од изузетне важности за привредни напредак, својим функционисањем утиче на околна насељена места. Међу бројним аспектима овог утицаја, може се издвојити издвојити и анализирати утицај вертикалних и хоризонталних померања која се јављају на површи терена. Мониторинг вертикалних и хоризонталних померања површи терена околних насељених места треба да има што бољу временску резолуцију (временски период између праћења деформација) како би се вертикална и хоризонтална померања контролисала и ...Зоран Гојковић. Модел померања терена услед утицаја рударских радова на основу радарских сателитских снимака, Београд : Универзитет у Београду, Рударко - геолошки факултет, 2023
-
Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides
Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor (2019)Internal Dinarides, Drina-Ivanjica thrust sheet, Deformation history, K–Ar dating, Obduction, Structural analysis... Porkolab et al. a o LA D2 reverse faults” ~ a OO Verse faults 1000Em — — — – supposed D2 thrust — @ • outcrop location 900 E and label of outcrop 800 — 700 — | ~ 600] ~ – — – – – – –v — __ Fig. 4 Mesoscale Do deformation structures. For outcrop locations see Fig. 2a. a Southwest-verging ...
... 1). The vergence of D. thrusts and asym- metric folds indicates a top-SW tectonic transport direction in the NE part of the study area, but a top-NE tectonic transport direction in the SW part of the study area (Figs. 2, 7). A top-SW tectonic transport direction is in agreement with the prevailing ...
... (2008). A possible kinematic solution is shown by Fig. 7b suggesting that the D, nappe contact at the base of the Western Vardar ophiolites might have reactivated as a roof thrust during early Do back- thrusting: thus accommodating the displacement of the Southern Triassic. Such a roof thrust ...Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor. "Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides" in Swiss Journal of Geosciences (2019)
-
Proračun osnovnih mehanizama na rotornom bageru ShRs 1300 na PK Polje E
Luka Nikolić (2024)Površinska eksoloatacija ležišta mineralnih sirovina, a posebno uglja (lignita) vrši se primenom različitih rudarskih mašina. U zavisnosti od tipa ležišta, rudarsko-geoloških uslova, ekonomske analize i sl. koriste se sistemi sa kontinualnim ili diskontinualnim načinom rada.Kod kontinualnih sistema, primenjuju se kompleksne rudarske mašine kod kojih se proces odvija neprekidno odnosno bez ciklusa utovara, transporta i odlaganja i najčešće rade u sve tri smene. Rotorni bageri i bageri vedričari, transporteri sa gumenom trakom, odlagači ili deponijske mašine čine tkz BTO ili ...... aaaaaaaaaaaa a eeaeeaieaeaataaeaeakeakttee 4 2.2. Održavanje mehanizacije na otkopu Polje E..........aaaaaaaaaaaaaaaaaa a eaaaaaaaaaakatkteee 6 OPŠTE O ROTORNIM BAGERIMA ......aaaaaaaaaaaaa a aaatatatiaeeaaaattaiaeekkahatttatkeek 7 3.1. Razvoj i oblast primene.......aaaaaa a aaaaaaaaaaaaaaea a aaaaaa ...
... 12,5 m Brzina trake...............aaa... a a a d tddd0ı 0,42 m/s Prijemna traka (traka 2) Osno rastojanje bubnjeva............ dttt 57 m 41 Diplomski rad Univerzitet u Beogradu – Rudarsko-geološki fakultet Brzina trake...............aaa... a a d du ddu00oı 4,25 m/s Snaga motora....... ...
... . i tadoiccı 17m Brzina trake................a u a a i avnı 4,25 m/s Snaga motora..............o dtt tota ttt 2x200 KW Odložna traka (traka 4) Osno rastojanje bubnjeva..................... i tadoiccı 22 m Brzina trake...............aaa. . a a o dt0ı 4,25 m/s Snaga motora............. dd ...Luka Nikolić. Proračun osnovnih mehanizama na rotornom bageru ShRs 1300 na PK Polje E, 2024
-
Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations
The type of dip-slip faults can be assessed based on the analysis of vertical gravity gradients. Theoretically, just a simple comparation of the gradient extreme values can give us an answer whether the fault is normal or reverse (thrust). Practical application of this method is far more complicated and the results depend on a number of parameters, such as a complexity of geological setting, the quality of gravity data, dip angle and displacement of the fault, density contrast, etc. ...... iPhone AS A TOOL IN STRUCTURAL GEOLOGY Igor Ivanovski, Bojan Maksimov, Gose Petrov, Gorgi Dimov, Milorad Jovanovski, Natasha Nedelkovska — O a 285 Enepruja, Đocu.inu ropuBa u Jar:tepojiHa HeyTpaJIHocT CEEGS PROJECT – A NEW PERSPECTIVE FOR GREEN ENERGY Jris Puković Kartal O a 293 CHCTEM ...
... gradients. Theoretically, just a simple comparation of the gradient extreme values can give us an answer Whether the fault is normal or reverse (thrust). Practical application of this method is far more complicated and the results depend on a number of parameters, such as a complexity of geological setting ...
... Geologists of the Republic of North Macedonia 30 . Uzz [10" s?] (a) x [km] 1:) Ao = 0.3 g/cmš 30 – Uzz [10% s?}] -30 - a H | x{[km] 10 -- |22 Aoc = 0.3 g/cm? Figure 1. Vertical gravity gradient (Uzz) curves over (a) normal fault and (b) reverse fault with positive density contrast ...Ivana Vasiljević, Snežana Ignjatović, Branislav Sretković. "Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations" in Vth Congress of the Geologists of the Republic of North Macedonia, Ohrid, Republic of North Macedonia, September 27-28, 2024, Macedonian Geological Society (2024)
-
The number of nonunimodular roots of a reciprocal polynomial
Dragan Stankov (2023)We introduce a sequence Pd of monic reciprocal polynomials with integer coefficients having the central coefficients fixed as well as the peripheral coefficients. We prove that the ratio of the number of nonunimodular roots of Pd to its degree d has a limit L when d tends to infinity. We show that if the coefficients of a polynomial can be arbitrarily large in modulus then L can be arbitrarily close to 0. It seems reasonable to believe that if ...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 nonunimodular roots of a reciprocal polynomial" in Comptes rendus mathematique, Elsevier France Editions Scientifiques et Medicales (2023). https://doi.org/10.5802/crmath.422
-
Parallel Bidirectionally Pretrained Taggers as Feature Generators
In a setting where multiple automatic annotation approaches coexist and advance separately but none completely solve a specific problem, the key might be in their combination and integration. This paper outlines a scalable architecture for Part-of-Speech tagging using multiple standalone annotation systems as feature generators for a stacked classifier. It also explores automatic resource expansion via dataset augmentation and bidirectional training in order to increase the number of taggers and to maximize the impact of the composite system, which ...Ranka Stanković, Mihailo Škorić, Branislava Šandrih Todorović. "Parallel Bidirectionally Pretrained Taggers as Feature Generators" in Applied Sciences, MDPI AG (2022). https://doi.org/10.3390/app12105028
-
Towards Sustainable Management of Transboundary Hungarian-Serbian Aquifer
Zoran Stevanović, Peter Kozák, Milojko Lazić, Janos Szanyi, Dušan Polomčić, Balazs Kovács, Jozsef Török, Saša Milanović, Bojan Hajdin, Petar Papić (2011)... [10]. 4.9.5 Conclusion For this proiect numerous activities were undertala local waterworlcs encluiry field survey and measurements, the establishment of a GW monitoring network, the creation of a GW initial database, common workshops and seminars for local capacity building, and wa ...
... Great Hungarian Basin) represents a geographicai and geological entity that spreads over the territory ofseveral countries. The central | ,,, il i *ti':i !l:i!lr::l llr,:ir',. 'lii l:l' : i::,;!l ritl ::lli;' ;:iiii li:i till: j l.,tt,:ii:l.i.r!:i:.i, ,,:t .,a::.: ::::iia:); t: ""#d? ,& x' ...
... 1). The Pannonian basin is a typical lowland, whose height above sea level is mainly 70-720 m. The flat relief features various geoiogical structures, such as loess plateau, loess terraces and alluvial plains, and small depressions in between prevai[. The region has a moderate continental climate ...Zoran Stevanović, Peter Kozák, Milojko Lazić, Janos Szanyi, Dušan Polomčić, Balazs Kovács, Jozsef Török, Saša Milanović, Bojan Hajdin, Petar Papić. "Towards Sustainable Management of Transboundary Hungarian-Serbian Aquifer" in Transboundary Water Resources Management - A Multidisciplinary Approach, Weinheim, Germany : Wiley-VCH (2011): 143-149
-
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 елеменатаСтефан Милановић. Моделирање утицаја одступања линије најмањех отпора од пројектоване на интензитет потреса од минирања, Београд : [С. Милановић], 2024
-
Могућности и значај коришћења појава природног лековитог фактора на територији Србије у дермокозметици
Сава Вуковић (2024)Сведоци смо да је данас потражња усмерена ка ефикасним производима које нуди дермокозметика јер употреба дермокозметичких производа носи много мање ризике и има далеко мањи токсични потенцијал у односу на дерматолошке лекове. Важно место у дермокозметици заузимају појаве природног лековитог фактора - термалне воде и лековита блата. Термалне / термоминералне воде садрже макро-, микро- и фармаколошко-терапеутске елементе, тј. eлементе у траговима који су доказали своју ефикасност у нези и заштити коже и у побољшању одређених кожних поремећаја. То се ...природни лековити фактор, термоминералне воде, лековито блато, дермокозметика, Луковска бања, Бања Риђица... epaleyTCKH aKTHBHC MHKPpOKOMIIOHCHTC TacHuH cacraB (CO->) “DgaHuke KapaKTepHCTHKC TepmMoMunepayiHa XeMuHJcKuH cacTaB BOJIA N A A A A A A A A A A A “DgaHuke KapaKTepHCTHKC 'VkyrHa KojnHuuHHa CyMIIOpa EneMeHTH 0JI 3aHauaja 3a JPyJICKO 3J1paBJbC KananureT H3MCHe KaTJOHa XeMuHJcKuH ...
... MHKp0o, yJrrpaMHKPo H (bapMaKoJIOIiKo-TepaneyTCKH 3HauajHH CJICMCHTH H3 TEpMaJIHHX BOJIA y JČCpDMOKO3MCTHIMH al aaeaanaaaaaaaaaaeaaa a aa a aaaa a a a eaa a eaaaa a aaoaaaaadvot 35 4.2 JlekoBuTo 0JraTO y epMOKO3METHIMH lyy aaaaaaaeaeaaaaaaaaeaeaaaaaaeaeaaaeeaeaeaeaeeaeasaeaeeaeaeeeeeeee 45 4.3 ...
... H H I H M O H H L O N A I l MHVFSH IHIL HXOHHIOM/AH-OHLOdex, l M H H P I E H H H I M H I 2 d e x y l : H H P T E H H d S O I I H L SEDAZ.—\A·_.UNM Hoqraeioomrodu prons x& x s x u : m · ? : m ž a š n x : m š n : i(podi a d o m a a m o r o d r H x vrr(odnu ...Сава Вуковић. Могућности и значај коришћења појава природног лековитог фактора на територији Србије у дермокозметици, 2024
-
Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)
A groundwater flow model was developed to simulate groundwater extraction from the public water supply source of the City of Kikinda. The hydrodynamic model includes the municipal groundwater source of Kikinda (Šumice and the Jezero Well), but also an extended area where there are groundwater sources that provide water supply to three factories: (MSK, TM and LŽT - Kikinda). Hydrodynamic modeling, based on the numerical method of finite differences will show the groundwater balance of the sources in the ...... r source, operating two production wells with a total capacity of 54 l/s; the TM groundwater source, using a single production well with a discharge rate of 35 l/s; and the LŽT - Kikinda groundwater source, which operated two production wells with a total capacity of 50 l/s. Effective infiltration ...
... applying a Monte Carlo approach, with Geographic Information System (GIS) support, is a useful tool for delineating groundwater protection zones [14]. Particle tracking simulations can be used to determine travel times from recharge to discharge areas along identified flowpaths [15]. Using a standard ...
... code and a technique based on adjoint theory, and combining forward-in time and backward-in time transport modeling, it is possible to determine the impact of potential contaminant sources at unknown locations within a well capture zone, including the expected times of arrival of a contaminant ...Dušan Polomčić, Dragoljub Bajić, Jelena Zarić. "Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)" in Journal of Sustainable Development of Energy, Water and Environment Systems (2015). https://doi.org/10.13044/j.sdewes.2015.03.0017
-
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
-
Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal
Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)... should not be used as a household fuel” [12]. However, a relatively high amount of low-rank coal in addition to thermal power plants is used in households (for cooking and heating), particularly in Serbia, India, and China [13,14]. Numerous studies were performed on lignite pyrolysis as a method for its improved ...
... ons were carried out on lignite or bituminous coal having a low ash (4–12%, dry basis) and relatively high carbon content (62–84%, dry, ash-free bases) [33,35,36], not on low-quality lignite with a high ash content (>40%) and, consequently, a low calorific value (net calorific value <15 MJ/kg). Our ...
... lignite/HDPE co-pyrolysis as a possible method for utilization of lignite of extremely low quality (ash content > 40%; organic carbon content <30%). The objective was to examine and confirm the existence of a synergetic effect during low-quality lignite and HDPE co-pyrolysis, using a wide range of methods, ...Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović. "Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal" in Polymers, MDPI AG (2021). https://doi.org/10.3390/polym13050759
-
Back-arc underplating provided crustal accretion affecting topography and sedimentation in the Adria microplate
Paolo Mancinelli, Vittorio Scisciani, Cristina Pauselli, Gérard M. Stampfli, Fabio Speranza, Ivana Vasiljević (2021)Supported by evidence of deep crustal sources for the observed magnetic anomalies in Central Italy and by outcropping gabbros in the Croatian archipelago, we model the observed gravity and magnetic anomalies in the Central Adriatic Sea and surroundings. We suggest that the major magnetic anomalies in the area are related to a wide underplating and propose that this volume represents the first stage of the back-arc Adria continental breakup in Early Permian times. During the Palaeotethys-Adria collision, underplating has ...Paolo Mancinelli, Vittorio Scisciani, Cristina Pauselli, Gérard M. Stampfli, Fabio Speranza, Ivana Vasiljević. "Back-arc underplating provided crustal accretion affecting topography and sedimentation in the Adria microplate" in Marine and Petroleum Geology, Elsevier Ltd. (2021). https://doi.org/10.1016/j.marpetgeo.2021.105470
-
Povezivanje i detaljno snimanje donjeg potkopa rudnika ,,Crveni Breg“ na Avali
Jovan Obradović (2024)Cilj ovog Završnog rada na temu „Povezivanje i detaljno snimanje donjeg potkopa rudnika ,,Crveni Breg“ na Avali” jeste dobijanje koordinata tačaka jamskog poligonskog vlaka, kao i prikaz samog rudnika na osnovu detaljnog snimanja jame, kao poprečnih profila podzemne rudničke prostorije. U datom radu biće predstavljene metode koje su primenjene prilikom snimanja, kao i rezultati samih merenja i sva potrebna računanja da bi se došlo do potrebnih koordinata.Merenja za završni rad obavljena su tokom terenske nastave održane u junu 2024. godine ...... 2.2 Klasifikacije poligonske mreže .............................aaaaaaaaaaaa a aaaaaaaaaeaeaaeeaeeaaeaaeaaeaaeaeeaeeaeeaueaueev e 8 2.3 Projekat i rekognosciranje poligonske mreže ..............................aaa a a a a a aaaaaeeaeea 9 2.3.1 _ Stabilizacija i signalizacija poligonskih tačaka na ...
... koordinatnog sistema, tada će jedna vrednost koordinatne razlike biti 0 (A,= 0 ili Ayi;= 0), a druga će odgovarati dužini strane (Ay,= S; ili A„ .= S;) (slika 2-15); -zav=0" iliv= 180%, Ay=0; |Ax|=5S; - za v= 90* ili v = 2709, A„=0; |Ay|=S. 25 SLIKA 2-15 – VDREDNOSTI KOORDINATNE RAZLIKE U PRAVOUGLOM ...
... programu „AutoCAD 2024“. 55 Literatura l. Ganić A., Milutinović A.:. GFPODETSKA RAČUNANJA, Rudarsko-geološki fakultet, Beograd 2010. 2. Patarić M.: RUDARSKA MERENJA I deo, Rudarsko-geološki fakultet, Beograd, 1990. 3. Ganić A., Milutinović A., Tokalić R., Ognjanović S.: METODE MERENJA POPREČNIH ...Jovan Obradović. Povezivanje i detaljno snimanje donjeg potkopa rudnika ,,Crveni Breg“ na Avali, 2024
-
Adsorption and Polymerization of Aniline on Cu(II)-Montmorillonite: Vibrational Spectroscopy and ab Initio Calculation
Batch adsorption experiments in the presence of oxygen were performed to study the interlayer reactions of aniline on Cu(II)-montmorillonite in aqueous solutions. At concentrations below a critical value of CC ) 2.6 mmol dm-3 only a colored Cu(II)-aniline complex is formed, characterized by a stability constant of log(Kassoc/dm3 mol-1) ) 1.5. At concentrations beyond Cc aniline polymerizes yielding a dark brown product, which is identified by two vibrational spectroscopy techniques, attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy and ...M. Ilić, E. Koglin, A. Pohlmeier, H. D. Narres, M. J. Schwuger. "Adsorption and Polymerization of Aniline on Cu(II)-Montmorillonite: Vibrational Spectroscopy and ab Initio Calculation" in Langmuir (2000). https://doi.org/ 10.1021/la000534d
-
Управљање отпадом – услови, циљеви и изазови на домаћем тржишту
Дарко Драгићевић (2024)Тема овог завршног рада обухвата анализу система управљања отпадом на домаћем тржишту, са посебним освртом на постојеће изазове и могућности за унапређење. Управљање отпадом је кључна компонента заштите животне средине и одрживог развоја, док у Србији ова област пролази кроз процес трансформације у складу са захтевима Европске уније и међународним стандардима. Овај завршни рад је пружио боље разумевање сложености управљања отпадом у Србији и понудио практична решења која могу помоћи у остваривању одрживог развоја у овој области.... iaaaaaaaaaaa a ieeeaeeraeaaetataeeteeaatateaetttketee 27 7.4. Peugikna>ka ninacTMKHe ........aaaaaa a aaneeaaeaaaeeeeeiateeiaaetetatteeteeeitatatetttette 28 7.5. Peuvikna>ka cTaHMa ........aaaaaaaa a eeeaaaeaataaeaaanaeiaeeaitaeeeetataeiteeataeaatattktte 29 8. TPETMAH OTITAJTIA.....aaa a aaaaaaaea ...
... tettataaketeee 54 11.4. Jlokauvja M npMcTynauHOCT........aaaa a aaaaaaaaaaaaataaaeaeaaaaeaaataaaktoet 56 11.5. {lMckycuvja pe3ynrTaTa....aaaaaaaaaa a aaaaaaaaaaeae e aaaaa a aaataaaeaaeaaataakatveee 58 12. 3AKJbYUAM ... aaaaaae a aaaaaaaaeaaaeaaeaaeaaaaaaaaaaaaaaaeaaauataatatae 59 Cnuucakx cjika ...
... EBUR, J., POPbEBUR, A., ABPAMOBUh, /1., ByKAJHOBUR, A., 2017. ynpasrbakbe KOMyHa/IHuM CuCmeMOM u 3ax(mumoa ){u6OmHe cCpeOuHe, ĐakyanreT 3auiTvWiTe Ha pany, Hvui, cTp.231 33 8.2. TepMuuku rperMaH TepMuuku TpeTMaH oTa/a ce KOpHcTH KaKO OH ce MoOujama cHeprHja H3 oTna/a, Ha Taj HauHH Ce CMaMbyje ...Дарко Драгићевић. Управљање отпадом – услови, циљеви и изазови на домаћем тржишту, 2024
-
Improvement of education through the cooperation between CEEPUS EURO Geo-Sci network and scientific projects: examples from UB-FMG
Kristina Šarić, Dejan Prelević, Miloš Marjanović, Uroš Stojadinović, Vladimir Simić . "Improvement of education through the cooperation between CEEPUS EURO Geo-Sci network and scientific projects: examples from UB-FMG" in V Congress of Geologists of Republic of Macedonia ": “Geology in a changing world”, Makedonsko geološko društvo (2024)
-
Hronološki pregled razvoja površinske eksploatacije lignita u Srbiji
U ovom preglednom radu dat je istorijski pregled razvoja površinske eksploatacije lignita na teritoriji Srbije, uz kratak osvrt na geološki nastanak i kvalitet i rezerve uglja, kao i mogućnosti korišćenja za dalju upotrebu. Kolubarski, Kostolački i Kovinski ugljeni baseni lignita u Srbiji, ne računajući Kosovsko-Metohijski i Drenički u sastavu AP Kosovo i Metohija po Rezoluciji 1244 UN, su ležišta najrasprostranjenijeg uglja - lignita u Srbiji koji se eksploatiše od druge polovine 20. veka na velikom broju površinskih kopova ...Bojan Dimitrijević, Radmila Gaćina, Bogoljub Vučković. "Hronološki pregled razvoja površinske eksploatacije lignita u Srbiji" in XI Međunarodna konferencija ugalj i kritični mineral CCM 2023, Zlatibor, 11-14. oktobar 2023., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
-
Numerical modeling of Selanac debris flow propagation using SPH code
The Selanac debris flow is a very huge event triggered after extreme rainfall caused by Cyclone Tamara activity in the Republic of Serbia in May 2014. The Selanac case study was already modelling in different programs using Voellmy rheology assumptions like RAMMS software. In this paper research are focusing particularly on the process of debris flowing from initiation zone to main deposition area using Geoflow SPH two-phase model considering frictional rheology law. Main rheological parameters are back-calculated using also ...... models are progressing nowadays and giving a wide range of possibilities. Some of the available approaches treat the heterogeneous and multiphase moving mass as a single-phase continuum. The others are considering two phases, solid and liquid, i.e. a granular skeleton with voids filled with either ...
... into a ‘pore pressure’ and an effective stress, and the mechanical behavior of the mixture can be described by a system of differential equations governing the dynamics of each of the phases as well as the coupling among them (Pastor et al, 2008). SPH (Smoothed Particle Hydrodynamics) is a mesh- ...
... transportation zone The Selanac debris flow is a complex flow type landslide phenomenon, firstly triggered as slide of huge initial block which is 30 m thick in the deepest part. Subsequently, it propagated as a debris flow process, with a long runout distance, including about 1 km long transportation ...Jelka Krušić, Biljana Abolmasov, Miloš Marjanović, Manuel Pastor, Saeid M. Tayyebi . "Numerical modeling of Selanac debris flow propagation using SPH code" in SCG-XIII International Symposium on Landslides. Cartagena, Colombia- February 22-26, 2021, International Society for Soil Mechanics And Geotechnical Engineering (2021)
-
Classification of mining waste landfills according to legislation in Serbia
... Uredba predlaže dve opšte kategorije depo- nija: deponije koje pripadaju kategoriji A („rizična“ kategorija) i deponije koje ne pripadaju kategoriji A („nerizična“ kategorija). Deponija se klasifikuje kao kategorija A ako [6]: „… 1. zbog kvara ili neispravnog rada, npr. rušenja jalovišta ili pucanja ...
... na u kategoriju A prema samo jednom od tri kriterijuma, onda nema potrebe raz- matrati preostala dva kriterijuma. Sa druge strane, uko- liko deponija niti prema jednom kriterijumu nije pot- pala u kategoriju A, onda sveukupna klasifikacija de- poniju ne svrstava u kategoriju A. Iako to znači da ...
... sa ostalim otpadom. Prema Uredbi izvesno je deponija u kategoriji A, ako je taj odnos masa preko 50 %. Uslovno je deponija u kategoriji A, ako je odnos masa od 5-50%. Deponija sa ovim odnosom je apriori svr- stana u kategoriju A, međutim, može biti izuzeta ako je tokom procene rizika, tokom koje ...Dragana Nišić, Uroš Pantelić, Nikoleta Aleksić, Neda Nišić. "Classification of mining waste landfills according to legislation in Serbia" in Tehnika, Centre for Evaluation in Education and Science (CEON/CEES) (2021). https://doi.org/10.5937/tehnika2105575N