Претрага
671 items
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Dosadašnja saznanja o bijelim boksitima na prostoru Crne Gore
Mia Jovanović, Slobodan Radusinović, Vladimir Simić. "Dosadašnja saznanja o bijelim boksitima na prostoru Crne Gore" in Geološki glasnik (2023)
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Model za optimizaciju graničnog saržaja metala u rudi u funkciji dugoročnog planiranja površinskih kopova
Daniel P. Kržanović (2016-06-14)Optimizacija graničnog sadržaja metala u rudi jedan je od osnovnih koraka u planiranju i dizajniranju površinskih kopova i ima za cilj postizanje maksimalne neto sadašnje vrednosti (NPV). Iz tog razloga, optimizacija graničnog sadržaja i danas je predmet mnogih istraživanja u rudarskoj nauci, sa ciljem rešavanja praktičnih problema u eksploataciji ležišta.Dugoročno planiranje eksploatacije na površinskim kopovima podrazumeva sagledavanje svih relevantih parametara i faktora (geologije rudnog ležišta, tehnologije proizvodnog procesa, kapaciteta otkopavanja i prerade, troškova, cena metala, iskorišćenja i dr) kako ...površinski kop, dugoročno planiranje, optimizacija graničnog sadržaja, maksimizacija neto sadašnje vrednosti (NPV).... materijala. U principu, ako je kategorija sadržaja [g1(k), g1(k +1)] minerala 1 predstavljena kao k*, onda se niži sadržaj u k*, g1(k) smatra graničnim sadržajem minerala 1. Shodno tome, ako je kategorija sadržaja [g2(l), g2(l +1)] minerala 2 koja odgovara k* predstavljena kao l*, onda se niži sadržaj u ...
... materijal se šalje na odlagalište jalovine. Ako gl postoji u kategoriji sadržaja ležišta k` tj, [g(k), g(k+1)] i maksimalna vrednost gc postoji u drugoj (višoj) kategoriji sadržaja ležišta k'', tada H=k’’-k’+1 predstavlja broj kategorija sadržaja u rudnim zalihama, uključujući [g(1), g(2)], [g(2) ...
... kategoriju sadržaja k*, dobijeni metal, predstavljen kao cr(k*) je: (4.32) Znajući cr(k*), balansiranje graničnog sadržaja za faze flotacijske i metalurške prerade određuje se na osnovu krive prikazane na slici 4.17. Kako odnos R/C leži između cr(k*) i cr(k*+1) na y osi, odgovarajuća ...Daniel P. Kržanović. "Model za optimizaciju graničnog saržaja metala u rudi u funkciji dugoročnog planiranja površinskih kopova" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-06-14)
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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... uuja bopMyana KypitoBa rnmacH: JIB-4 HCOŠ,CL SO2 CO?Ž . „M..i9 —M_- —— —— 0.14141.19 (Na + K)s CaxaMgs 68 MB-5 ? M HCOseCLSQ) 015 105(Naq + K)saCa>ž)Mguiy JB-6 O2 M HCOŠ,Cl, 7 0.101“0.97 Ca38Mg32(Na+K)30 53 ŽeMHJCKHM aHaJmi3aMa BOJIa yTBPijeH Je caj1pxkaj carerehHx MHKpoeJIeMcHaTa: Ba, B, ...
... jaBJbajy Ha TIOBpIHHHH TepeHa. KPEJTIA (K) V MHCTOUHOM JeJy yX)KE 3OHC INIOjJaBJbHBaHMba TEpMOMHHCPpaJIHHX BOJUA, OTKpHBeHa je cepHja ce,MMeHaTa KOJy CcauHMaBajy KPpyHIHO3pHHM OaHKOBHTH memuapuH, TJHHIH, JIAHOpIMHI H KOHTIJIOMepaTHM OapeM-amrTcke crapocrH (K,;i?), /leOJbHHa oBe cepHje Henocpe)JiHo ...
... Scottish Coastal waters. Eur. J. Phycol., 38 (2003), pp. 25-40 18. Komarek J, Anagnostidis K. (1998). Cyanoprokaryota, part 1: Chroococcales. Stuttgart: Gustav Fischer Verlag, pp 548 19. Komarek J, Anagnostidis K. (2005). Cyanoprokaryota part 2: Oscillatoriales. Elsevier GmbH, Munchen, 759 p. 20 ...Сава Вуковић. Могућности и значај коришћења појава природног лековитог фактора на територији Србије у дермокозметици, 2024
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Heavy metals in lignite and soil of Kostolac-Kovin coal basin, eastern Serbia - comparative analysis with selected cities in Serbia, region, Europe and world
Bogoljub Vučković, Bojan Dimitrijević (2023)The Kostolac-Kovin coal basin with an area of 320 km2, with 5 separate layers of coal and with a total of about 5.7 Bt of geological resources and reserves represents an exceptional potential for coal production in Serbia. The coal resources listed in this way are not fully exploitable, but they represent potential for consideration. In this paper, we deal with the geochemical characteristics of coal seams and perform a comparative analysis of coal affectation on the environment. With ...... 40 ppm Kovin 2 Open Pit Drmno under running II Coal Layer Pb avg. = 20 ppm , III Coal Layer Pb avg. = 12.5 ppm a _— — _ m ——— R K a ___ _— ___— K r — — — _— ——— E e= | CoalLayer | e= MM CoalLayer | el MM CoalLayer || Cu avg. = 60 ppm m Cu avg. = 45 ppm m —. Cu avg. = 40 ppm m eosod| ...
... doi: 10.1016/j.catena.2012.06.007. 7. Cheng Y., Paltseva A., Li 1., Morin T., Huot H., Egendorf S., Su Z., Yolanda R., Singh K., Lee L., Grinstein M., Liu Y., Green K., Wai W., Wazed B., Shaw R., 2015 – Trace Metal Contamination in New Vork City Garden Soil - Soil Sci 180, Technical article 8 ...
... (Ia, I and II layers at the future surface mine West Kostolac 1; and at the future surface mine Kovin 1) -3 -5i ı % aMewwyram Š WaQra . Mpwayrab k rac 3 e mrmwr g P4buHepuja naQre -| 4964000 | -| F 4962000 -| 4960000 | 4958000 4956000 -| 4954000 -| 4952000 -| 4950000 -| 4948000 ...Bogoljub Vučković, Bojan Dimitrijević. "Heavy metals in lignite and soil of Kostolac-Kovin coal basin, eastern Serbia - comparative analysis with selected cities in Serbia, region, Europe and world" in 9th International Conference Mining and Environmental Protection, 24–27. May 2023, Sokobanja, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet (2023)
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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
... differences in the chemistry of the samples. Sample 1 has a higher content of 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 ...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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Утицај обртног магнетног поља на дерацемизацију кристала натријум-хлората
... 2151—2155. [3] C. Xiouras, J. V. Aeken, J. Panis, J. H. T. Horst, T. V. Gerven, G. D. Stefanidis, Crysf. Growth Des., 15 (2015) 5476–5484. [4] K. Suwannasang, A. E. Flood, C. Rougeot, G. Coquerel, Cryst. Growth Des., 13 (2013) 3498—3504. [5] M. M. Milojević, B. M. Vučetić, B. Z. Maksimović, ...
... 2151—2155. [3] C. Xiouras, J. V. Aeken, J. Panis, J. H. T. Horst, T. V. Gerven, G. D. Stefanidis, Crysf. Growth Des., 15 (2015) 5476–5484. [4] K. Suwannasang, A. E. Flood, C. Rougeot, G. Coquerel, Cryst. Growth Des., 13 (2013) 3498—3504. [5] M. M. Milojević, B. M. Vučetić, B. Z. Maksimović, ...М. Милојевић, А. Жекић, П. Дабић, Б. Вучетић, Б. Максимовић. "Утицај обртног магнетног поља на дерацемизацију кристала натријум-хлората" in XXVII конференција Српског кристалографског друштва, Чачак, 14-15. јун, 2023., Београд : Српско кристалографско друштво (2023)
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Threshold-induced correlations in the Random Field Ising Model
... 11. Dahmen, K. A. & Sethna, J. P. Hysteresis Loop Critical Exponents in 6 − ε Dimensions. Phys. Rev. Lett. 71 (1993). 12. Dahmen, K. A. & Sethna, J. P. Hysteresis, avalanches, and disorder-induced critical scaling: A renormalization-group approach. Phys. Rev. B 53 (1996). 13. Dahmen, K. A. & Sethna ...
... 11. Dahmen, K. A. & Sethna, J. P. Hysteresis Loop Critical Exponents in 6 — ¢ Dimensions. Phys. Rev. Lett. 71 (1993). 12. Dahmen, K. A. & Sethna, J. P. Hysteresis, avalanches, and disorder-induced critical scaling: A renormalization-group approach. Phys. Rev. B 53 (1996). 13. Dahmen, K. A. & Sethna ...
... Belanger, D. P. & Nattermann, T. In Spin Glasses and Random Fields, edited by Young, A. P. (World Scienti�c, Singapore, 1998). 3. Sethna, J. P., Dahmen, K. A. & Perković, O. In �e Science of Hysteresis, edited by Bertotti, G. & Mayergoyz, I. (Academic Press, Amsterdam, 2006). 4. Durin, G. & Zapperi, S ...Sanja Janićević, Dragutin Jovković, Lasse Laurson, Đorđe Spasojević. "Threshold-induced correlations in the Random Field Ising Model" in Scientific Reports, Springer Science and Business Media LLC (2018). https://doi.org/10.1038/s41598-018-20759-6
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Novi model za postizanje optimalne proizvodnje na naftnom polju Amal
Elnori Elmabrouk Ali Elhaddad (2015-04-16)Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...... Rashid K., (2008). “A method for gas lift optimization,” in Proceedings of the SIAM Annual Meeting, Boston, Mass, USA. Rashid K., (2010). “Optimal allocation procedure for gas-lift optimization,” Industrial and Engineering Chemistry Research, vol. 49, no. 5, pp. 2286– 2294. Rashid K. Bailey ...
... 400 500 600 Proizvodnja, m 3 /dan P ri ti s a k , b a r 71 Slika 6.4. IPR kriva za bušotinu X2 Slika 6.5. IPR kriva za bušotinu X3 0 20 40 60 80 100 120 140 160 180 0 100 200 Proizvodnja, m 3 /dan P ri ti s a k , b a r 0 20 40 60 80 100 120 140 160 180 ...
... application of reservoir electrical heating methods, Porlamar, Margarita Island, Venezuela, March 12–14, pp. 1-17. Singhal H. K., Sahai G. C, Pundeer G. S., Chandra K. (1991) Designing and Selecting Wax Crystal Modifier for optimum Field Performance Based on Crude Oil Composition, SPE 22784, ...Elnori Elmabrouk Ali Elhaddad. "Novi model za postizanje optimalne proizvodnje na naftnom polju Amal" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-04-16)
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Novi model za postizanje optimalne proizvodnje na naftnom polju Amal
Elnori Elmabrouk Ali Elhaddad (2015-04-16)Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...... Rashid K., (2008). “A method for gas lift optimization,” in Proceedings of the SIAM Annual Meeting, Boston, Mass, USA. Rashid K., (2010). “Optimal allocation procedure for gas-lift optimization,” Industrial and Engineering Chemistry Research, vol. 49, no. 5, pp. 2286– 2294. Rashid K. Bailey ...
... 400 500 600 Proizvodnja, m 3 /dan P ri ti s a k , b a r 71 Slika 6.4. IPR kriva za bušotinu X2 Slika 6.5. IPR kriva za bušotinu X3 0 20 40 60 80 100 120 140 160 180 0 100 200 Proizvodnja, m 3 /dan P ri ti s a k , b a r 0 20 40 60 80 100 120 140 160 180 ...
... application of reservoir electrical heating methods, Porlamar, Margarita Island, Venezuela, March 12–14, pp. 1-17. Singhal H. K., Sahai G. C, Pundeer G. S., Chandra K. (1991) Designing and Selecting Wax Crystal Modifier for optimum Field Performance Based on Crude Oil Composition, SPE 22784, ...Elnori Elmabrouk Ali Elhaddad. "Novi model za postizanje optimalne proizvodnje na naftnom polju Amal" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-04-16)
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Application of machine learning for diagnosing the operation of a deep well pump in oil production
Maja Trikić (2024)This paper will thoroughly examine how machine learning can improve the diagnosis of deep well pumps by analyzing the role and function of the pumps, dynamograms, sensor technologies, and diagnostic methods.Our analysis will provide insights into modern techniques and approaches for enhancing the performance and reliability of oil production systems, targeting cost reduction and increased operational efficiency.deep well pump, dynamograms, machine learning, diagnostics of operating coditions,Random Forest, XGBoost... a sequence of ordered pairs (x0, y0), (x1, y1), (x2, y2), ..., GN-1, yN-1), each ordered pair can be treated as a complex number: s(k) = x(k) + jy(k) O) where k=0,1,2,...,N-1, and N represents the number of points on the contour. In this approach, the x-axis is treated as the real axis, while ...
... work utilizes the Continuous Wavelet Transform, described by equation (13). _ k-b Cw(s,b) = .J z(k)QC2-)dk (13) where: Cw(5, b)- is the result of the wavelet transform, Z(k)- is the signal being analyzed, iW)((k — b)/s)- is the wavelet function, s and b-scale and translation 54 The main ...
... discrete Fourier transform (DET), it is possible to compute the Fourier descriptors of the contour using equation (11). a(k) = y1 z(k)e y- (11) je n = 0,1,2.....N - 1 and a(k) are the Fourier coefficients of the contour. To make the descriptors invariant to rotation, the magnitude |a(R)|is used ...Maja Trikić. Application of machine learning for diagnosing the operation of a deep well pump in oil production, 2024
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Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation
The Dark Gate is the monument of culture, part of the cultural and historical complex of the Belgrade Fortress. It is constructed of limestone blocks that after 270 years of exposure to environmental conditions and different anthropogenic influences show wide ranges of decay forms. During 2007, detail registration of all built limestone microfacies and weathering forms was done using tools of monument mapping. A correlation scheme ‘‘intensity– damage category’’ was made according to the type, intensity, and distribution of ...... Heinrichs K (1994) Damage diagnosis at monuments carved from bedrocks in Petra, Jordan. In: Fassina V, Ott H, Zezza F (eds) La conservazione dei monumenti nel bacino del Mediterraneo. Soprintendenza ai beni artistici e storici di Venezia, Venice, pp 663671 Fitzner B, Heinrichs K (2002) Damage ...
... Heinrichs K, Kownatzki R (1992) Classification and mapping of weathering forms. In: Siegesmund S, Weiss ThN, Volibrecht A (eds) 7th International congress on deterioration and conservation of stone. Laborat6rio nacional de engenharia civil, Lisbon, pp 957–968 Fitzner B, Heinrichs K, Kownatzki ...
... Forderprojekt des Bundesministeriums fir Bildung, Wissenschaft, Forschung und Technologie, Verlag Ernst & Sohn, Berlin, pp 41-88 Fitzner B, Heinrichs K, Volker M (1997a) Model for salt weathering at Maltese Globigerina limestones. In: Zezza F (ed) Proceedings of the E.C. research workshop *Origin ...Maja Franković, Nevenka Novaković, Vesna Matović. "Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation" in Environmental Earth Sciences, Springer Science and Business Media LLC (2015). https://doi.org/10.1007/s12665-014-3843-z
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Granatski amfiboliti Bistrice
Jovana Opančina (2024)Predmet ispitivanja ovog završnog rada su granatski amfiboliti Bistrice. Izvršena su petrografska i hemijska ispitivanja s ciljem da se odredi stepen metamorfizma, protolit ispitivanih stena i P-T uslovi nastanka. Ispitivani granatski amfiboliti geografski pripadaju Prijepolju, tačnije nalaze se na ulasku u Prijepolje, mesto Bistrica. Geološka građa obuhvata uglavnom mezozojske tvorevine među kojima se nalaze sedimentne, magmatske i metamorfne stene. Geološki procesi koji su doveli do stvaranja amfibolita su procesi subdukcije i obdukcije koji su se pretpostavljamo dešavali na većim ...Jovana Opančina. Granatski amfiboliti Bistrice, 2024
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Značaj geografske širine za lociranje uzročnika magnetnih anomalija kod prospekcije arheoloških lokaliteta
Vesna Cvetkov (2020)... omogućava sagleda- vanje arheoloških nalazišta iz više as- pekata i samim tim tačnije definisanje potencijalnih zona od interesa za arheo- 15 A k t u e l n a i n t e rd i s c p l i n a r n a i s t ra ž i v a n j a t e h n o l o g i j e u a r h e o l o g i j i j u g o i s t o č n e E v ro ...
... stica, od erodovanih stena ili biogenog porekla, dovoljno malih dimenzija da se ponašaju kao mali magneti i orijentišu paralelno sa MPZ. 17 A k t u e l n a i n t e rd i s c p l i n a r n a i s t ra ž i v a n j a t e h n o l o g i j e u a r h e o l o g i j i j u g o i s t o č n e E v ro ...
... maksimum anomalije Slika 1. Oblik magnetne anomalije iznad gorelih arheoloških objekata od opeke pri različi- tim vrednostima inklinacije 19 A k t u e l n a i n t e rd i s c p l i n a r n a i s t ra ž i v a n j a t e h n o l o g i j e u a r h e o l o g i j i j u g o i s t o č n e E v ro ...Vesna Cvetkov. "Značaj geografske širine za lociranje uzročnika magnetnih anomalija kod prospekcije arheoloških lokaliteta" in Aktuelna interdisciplinarana istraživanja tehnologije u arheologiji jugoistočne Evrope: Zbornik radova, Prvi skup Sekcije za arheometriju, arheotehnologiju, geoarheologiju i eksperimentalnu arheologiju Srpskog arheološkog društva, Beograd, 28.02.2020. , Beograd : Srpsko arheološko društvo (2020)
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Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software
The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić. "Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software" in Podzemni radovi, Beograd : Rudarsko-geološki fakultet (2024)
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Influence of DEM resolution on numerical modelling of debris flows in RAMMS - Selanac case study
Debris flows induced by intensive rainfall represent very hazardous phenomena in many parts of the World. Methods for prediction of runout distance of flow like mass movements are different and depending on the input data, rheology, and available or appropriate numerical solution. However, sometimes it is not easy to obtain pre event and post event high-resolution data in the rural or mountainous area. Thus, the topology of terrain is the most important input parameter for the every real case ...... w hazards and related phenomena. Blondel, P. Springer Praxis Book in Geophysical Sciences, Chichester, UK .1723 p. Krušić, J., Andrejev, K.,Andrejev, K., Abolmasov, B, Marjanović, M.(2017) Preliminary results of the Selanac debris flow modelling in RAMS - a case study., Proceeding of the 3rd ...
... relationships for debris flows. Natural Hazards 19: 47-77. Savage SB, Hutter K (1989) The motion of a finite mass of granular material down a rough incline. Journal of Fluid Mechanics 199 (1): 177-215. Schraml K, Thomschitz B, Mcardell BW, Graf C, Kaitna R (2015) Modeling debris-flow runout ...Jelka Krušić, Biljana Abolmasov, Mileva Samardžić Petrović. "Influence of DEM resolution on numerical modelling of debris flows in RAMMS - Selanac case study" in 4th Regional Symposium on Landslides in the Adriatic Balkan Region, 23-25 October 2019, Sarajevo, Bosnia and Herzegovina, Geotechnical Society of Bosnia and Herzegovina (2019). https://doi.org/ 10.35123/ReSyLAB_2019
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Geotechnical Conditions for Construction of Savski Trg Metro Station as a Part of the Belgrade Metro Line One
In order to solve serious traffic congestion in Belgrade, a number of studies regarding the Belgrade Metro construction have been carried out since 1973. However, only in 2019, the routes of the future metro lines 1 and 2 were de-fined as a part of the General Metro Construction Project. The lines are de-signed to intersect at the location of Sava Square, where an interchange met-ro station will be built. It represents a complex geotechnical structure consist-ing of three different ...Nemanja Stanic, Dragoslav Rakic, Josip Isek, Slavoljub Simic. "Geotechnical Conditions for Construction of Savski Trg Metro Station as a Part of the Belgrade Metro Line One" in Lecture Notes in Civil Engineering, Springer Nature Singapore (2024). https://doi.org/10.1007/978-981-97-8221-5_11
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Vibration as deciding parameter during revitalization process for replacing the bucket wheel drive
Bošković Saša, Jovančić Predrag, Ignjatović Dragan, Rakićević Branislav, Maneski Taško. "Vibration as deciding parameter during revitalization process for replacing the bucket wheel drive" in Journal of VIBROENGINEERING 17 no. 1, Kaunas, Lithuania:JVE International Ltd. (2015): 24-32
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Optimizacija parametara reza rotornog bagera pri otkopavanju materijala sa povećanom čvrstoćom
Saša D. Bošković (2016-09-09)Otkopavanje materijala rotornim bagerom je veoma sloţen fiziĉko-mehaniĉki proces. Pokazatelji efektivnosti tog procesa zavise od velikog broja raznovrsnih ĉinilaca od kojih se posebno mogu istaći: fiziĉko-mehaniĉke karakteristike materijala koji se otkopava, reţim rada bagera i izbor tehnoloških parametara bloka, odreska i reza, geometrije vedrica i zuba itd. Poseban problem se javlja kod otkopavanja materijala povećane ĉvrstoće, što je ĉest sluĉaj na našim površinskim kopovima. Dimenzionisanje specifiĉne sile kopanja bagera prema manjim masama izuzetno ĉvrstog materijala je neracionalno i rešenje ...rotorni bager, parametri reza, otpor na kopanje, dinamika bagera, kapacitet, optimizacija, specifična potrošnja energije... Slika 5.1. Oznake i pozitivni smerovi veličina grede Matrica krutosti elementa grede u prostoru reda 12*12 glasi: k k k k k k ke T 11 12 21 22 12 21 , (5.1) Ĉlanovi i ...
... 28 Uticaj brzine rezanja Brzina rezanja (m/s) P ro se čn a sil a re za nj a (k N) Brzina rezanja (m/s) a) S pe ci fič ni u tro ša k en er gi je (k W h/ m )3 Brzina rezanja (m/s) b) Slika 2.11. Uticaj brzine rezanja na: a) reznu silu i b) specifičnu ...
... specifiĉne potrošnje energije. 29 Uticaj ugla rezanja P ro se čn a sil a re za nj a (k N) Ugao rezanja ( )o a) S pe ci fič ni u tro ša k en er gi je (k W h/ m )3 Ugao rezanja ( )o b) Slika 2.12. Uticaj ugla rezanja na: a) reznu silu i b) specifičnu ...Saša D. Bošković. "Optimizacija parametara reza rotornog bagera pri otkopavanju materijala sa povećanom čvrstoćom" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-09)
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Results of comprehensive monitoring activities on Umka landslide, Belgrade, Serbia
Biljana Abolmasov, Uroš Đurić (2021)... 11th International and 2nd American Symposium on Landslides and Engineered Slopes, Banff, Canada, 3-8 June, 2012, Eds. Eberhardt E, Froese C, Turner K, Leroueil S, Taylor&Francis Group, London, Vol 2, pp. 1381-1385. Abolmasov B., Milenković, S., Marjanović M., Đurić U. and Jelisavac B., 2015, A ...
... Ćorić S., Božinović D., Vujanić V., Jotić M. and Jelisavac B., 1996, Geotechnical characteristics of old landslides in Belgrade area. In: Senneset K (ed) Proceedings of the 7th International Symposium on Landslides, 17–21 June 1996, Trondheim, Norway, Vol 2, Balkema, Rotterdam, pp 689–694 ...Biljana Abolmasov, Uroš Đurić . "Results of comprehensive monitoring activities on Umka landslide, Belgrade, Serbia" in 3rd European Regional Conference of IAEG/ Athens/ Greece/ 6-10 October 2021, IAEG National Group Greece (2021)
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Seismotectonic characteristics of 2010 Kraljevo seismic sequence (Internal Dinarides, central Serbia)
Ana Mladenović, Vladica Cvetković, Ivan Dulić, Snežana Marjanović. "Seismotectonic characteristics of 2010 Kraljevo seismic sequence (Internal Dinarides, central Serbia)" in Émile Argand Conference - 13th Workshop on Alpine Geological Studies - September 7th-18th 2017 in Serbia, Zlatibor Mts., Beograd:University of Belgrade - Faculty of Mining and Geology (2017): 72-72