Претрага
492 items
-
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
-
Petrološke karakteristike dunavskog šljunka (Beograd – Zemun)
Miloš Mihajlović (2024)Dunavski šljunak u okolini Zemuna karakterističan je za obalne rečne naslage formirane dugotrajnim procesima erozije i transporta materijala koje reka Dunav nosi sa različitih područja uzvodno. Ispitivanja šljunka sa lokacije „Gemax” su pokazala je šljunak uglavnom zaobljen, najčešće u rasponu od nekoliko milimetara do nekoliko centimetara u prečniku. Kako Dunav nosi materijal sa velikog sliva, ovaj šljunak sadrži raznovrsne sastojke sa dominacijom kvarca i odlomaka stena visokosilicijskog sastava. Mineraloško-petrografska ispitivanja pokazala su prisustvo klasta različitog sastava, čime je potvrđena ...... navedene pod r. br. 18) Laskarev, V., 1922: Sur le loess des environes de Belgrad. Geol. anali Balk. Pol. knj. VII, deo 1. (Preuzeto iz literature navedene pod r. br. 18) Laskarev, V., 1926: Deuxieme note sur le loess des environs de Belgrade. Geol. anali Balk. Pol. knj. VIII, sv, 2, Beograd. (Preuzeto ...
... pokazuje plastičnost kada je rađen opit određivanja Aterbergovih granica konzistencije. 17 Pr oc er at če st ca sa rj h o d " D " ( % ) In de ks p las tič nos ti Ip (%) AGLOB-107/01/20.07 2021. Slika 11. Rezultati granulometrije prikazani na radnom obrascu Arhitektonsko-građevinskog ...Miloš Mihajlović. Petrološke karakteristike dunavskog šljunka (Beograd – Zemun), 2024
-
Approach to operational mine planning: Case study Tamnava West
... by 1.052 t. SEAM WAST (m3) COAL (m3) COAL (t) THICKN. (m) LCV (kJ/kg) DF / 1676 2011 1.68 7350 G31 1312 / / 1.31 0 DE / 1574 1888 1.57 6959 G27 565 / / 0.57 3717 DD4 / 521 625 0.52 9442 G25 237 / / 0.24 1275 DD / 3035 3642 3.04 7495 G20 331 / / 0.33 3463 ...
... COAL (t) CUT No. CUT (t) CUT LCV (KJ/KG) DF 1.68 7350 / 2011 1 2573 6626 G31 0.31 1616 562 / G31 1.0 1616 1800 / 2 1800 0 DE 1.57 6959 / 1889 3 3531 6757 G27 0.57 3717 1017 / DD4 0.52 9442 / 625 G25 0.24 1275 427 / 4 7032 6657 DD 3.04 7495 / 3642 G20 0.33 3463 596 ...Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković. "Approach to operational mine planning: Case study Tamnava West" in Tehnika, Beograd : Savez inženjera i tehničara Srbije (2014). https://doi.org/10.5937/tehnika1406952S
-
An Efficient Class of Iterative Root-Finding Methods with Applications
Dejan Ćebić, Nebojša Ralević (2021)Dejan Ćebić, Nebojša Ralević. "An Efficient Class of Iterative Root-Finding Methods with Applications" in 2021 IEEE 19th International Symposium on Intelligent Systems and Informatics (SISY), IEEE (2021). https://doi.org/10.1109/SISY52375.2021.9582495
-
Mine ventilation system planning using genetic algorithms
The most common problem in contemporary mining practice related to the planning and analysis of ventilation systems is the optimization of partially regulated air distribution in mine ventilation networks. This paper presents a two step optimization procedure for partly regulated air distribution in mine ventilation networks. The first step is the determination of air distribution in all branches using the well known Hardy-Cross method. In the second step the distribution and parameters of air flow regulators with minimum engaged ...coal, lignite, and peat; ventilation systems; coal mining; underground mining; ventilation; mathematical models; design; air flow; optimization; calculation methodsNikola Lilić, Ranka Stanković, Ivan Obradović. "Mine ventilation system planning using genetic algorithms" in 6. international symposium on mine planning and equipment selection, Ostrava (Czech Republic), 3-6 Sep 1997, A.A. Balkema, Rotterdam (Netherlands) (1997)
-
Two approaches to compilation of bilingual multi-word terminology lists from lexical resources
In this paper, we present two approaches and the implemented system for bilingual terminology extraction that rely on an aligned bilingual domain corpus, a terminology extractor for a target language, and a tool for chunk alignment. The two approaches differ in the way terminology for the source language is obtained: the first relies on an existing domain terminology lexicon, while the second one uses a term extraction tool. For both approaches, four experiments were performed with two parameters being ...Branislava Šandrih, Cvetana Krstev, Ranka Stanković. "Two approaches to compilation of bilingual multi-word terminology lists from lexical resources" in Natural Language Engineering, Cambridge University Press (CUP) (2020). https://doi.org/10.1017/S1351324919000615
-
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, FAHPMiodrag Čelebić. Razvoj integralnog modela za optimizaciju diskontinualnog sistema proizvodnje na površinskim kopovima nemetala, Beograd : [M. Čelebić], 2024
-
The effect of finite driving rate on avalanche distributions
Statistics, Probability and Uncertainty,Statistics and Probability,Statistical and Nonlinear PhysicsSonja Radić, Sanja Janićević, Dragutin Jovković, Đorđe Spasojević. "The effect of finite driving rate on avalanche distributions" in Journal of Statistical Mechanics: Theory and Experiment, IOP Publishing (2021). https://doi.org/10.1088/1742-5468/ac1f12
-
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... Kiibler, B., 1966, La cristallinitć de Iillite et les zones tout ž fait supćrieures du mćtamorphisme: /n: Krages tectoniques. — Univ. Neuchđdtel, Inst. Geol., 105—122. Kiibler, B. (1968). Evaluation quantitative du mćtamorphisme par la cristallinitć de lillite. Bu/letin Centre Recherche Pau ...
... Radoičić, R., 1971, Uber die stratigraphie der Kreide serie der Mokra Gora: Bulletin Scientifique du Conseil des Academies des Sciences et des arts de la RSF de Yugoslavie, Sect. A, 16, 7-8-138. Picha, F. J. (2002). Late orogenic strike-slip faulting: and escape tectonics in frontal Dinarides-Hellenides ...
... Dinarides revisited: Implications from 40Ar/39Ar dating of detrital white micas: Geology, J3J, J, 233-236. Jolivet, L., Faccenna, C., Agard, P., Frizon de Lamotte, D., Menant, A., Sternai, P., and Guillocheau, F., 2015, Neo-Tethys geody- namics and mantle convection: from extension to compression in ...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)
-
Phase relations and physical indicators of municipal waste from old landfills in Serbia
Due to certain similarities of municipal waste and soil, usually for the determination of basic parameters of physical state, laboratory and field tests which are common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different values of indicators of municipal waste physical state can be found in the literature. The basic reasons should be found in different definitions and methods that researchers use ...municipal waste, moisture content, unit weight, specific gravity, grain size distribution, porosityGeneral Computer Science... content of organic matter, noting that the most of results were obtained by the research of peat (Skempton and Petley, 1970; Kanirajand Joseph, 1996; De Haan, 1997; Huat, 2004). Using the expression proposed by mentioned authors, values were obtained in interval of Gs = 1.98 — 2.39, and the average ...
... 36014 funded by the Ministry of Education, Science and Technological Development of Republic of Serbia for the period 2011—2020. REFERENCES 1) De Haan, E.J. (1997): An overview of the mechanical behavior of peats and organic soils and some appropriate construction techniques, Proceedings of ...Dragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić. "Phase relations and physical indicators of municipal waste from old landfills in Serbia" in Japanese Geotechnical Society Special Publication, The Japanese Geotechnical Society (2021). https://doi.org/10.3208/jgssp.v09.cpeg016
-
Pre-failure deformation monitoring as rockfall prediction tool
... Their principal finding is that smoothening of the point- cloud allows earlier detection of unstable blocks in comparison to raw cloud information. De Vilder et al. [5] focused on scar/rock bridges analysis, therein combining TLS with high- definition photographs, suggesting that freshly detached rock ...
... and Edwards T 2015 Identifying rock slope failure precursors using LiDAR for transportation corridor hazard management. Eng. Geol. 195 93–103 [5] De Vilder S J, Rosser N J and Brain M J 2017 Forensic analysis of rockfall scars. Geomorphology 295 202–214 [6] Janeras M, Jara J A, Royán M J, Vilaplana ...Miloš Marjanović, Biljana Abolmasov, Zoran Berisavljević, Marko Pejić, Petko Vranić. "Pre-failure deformation monitoring as rockfall prediction tool" in IOP Conference Series: Earth and Environmental Science, IOP Publishing (2021). https://doi.org/10.1088/1755-1315/833/1/012197
-
Digitalizacija u rudarstvu: Kreiranje sistema za efikasno poslovno izveštavanje
Proces donošenja odluka u oblasti rudarstva i geologije uslovljen je blagovremenim posedovanjem kvalitetnih podataka i informacija. Kompleksnost rudarskih procesa nalaže prikupljanje podataka na dnevnom odnosno na smenskom nivou. Podaci kao takvi bez analitičkog pristupa nisu dovoljni. Kako bi pristup podacima bio brz i efikasan neophodno je posedovanje adekvatnog digitalnog rešenja uz adekvatne centralizovane baze podataka. U ovom radu je dat pregled trenutne pozicije rudarstva sa aspekta digitalne transformacije kao i predlog jednostavnog prototipa u obliku digitalnog sistema za poslovno ...... [4] Stolterman, E. & Fors, A.C. (2004). Information technology and the good life. Information system research, s. 687-692. [5] de Sousa, J. S., Rocha, L. O., & de Castro, R. M. (2016). Digital transformation applied to Bauxite and Alumina Business System: BABS 4.0. In Proceedings of 37th International ...Stevan Đenadić, Aleksandar Mirković, Veljko Rupar . "Digitalizacija u rudarstvu: Kreiranje sistema za efikasno poslovno izveštavanje" in XVI Međunarodna rudarska konferencija OMC 2024, Zlatibor, 9 - 12. oktobar 2024, Jugoslovenski komitet za površinsku eksploataciju (2024)
-
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
-
Палеогеографска реконструкција јадарског блокатоком млађег палеозоика
Весна Цветков (2018)... Spatial distribution of geological resources in northwestern Serbia (Jadar block terrane) and its relation to tectonic structures. Annales geologiques de la Peninsule balkanique, 66, 17- 20 KARAMATA, S., OLUJIĆ, J., PROTIĆ, LЈ., MILOVANOVIĆ, D., VUJNOVIĆ, L., POPEVIĆ, A., MEMOVIĆ, E., RADOVANOVIĆ, ...Весна Цветков. "Палеогеографска реконструкција јадарског блокатоком млађег палеозоика" in Симпозијум Никола Пантић - човек и природа у спирали времена (90 година од рођења научника), Зборник радова, Српско геолошко друштво (2018)
-
Extraction of Bilingual Terminology Using Graphs, Dictionaries and GIZA++
Branislava Šandrih, Ranka Stanković (2020)U nauci, industriji i mnogim istraživačkim oblastima, terminologija se brzo razvija. Najčešće, jezik koji je „lingua franca“ za većinu ovih oblasti je engleski. Kao posledica toga, za mnoga polja termini domena su koncipirani na engleskom, a kasnije se prevode na druge jezike. U ovom radu predstavljamo pristup za automatsko izdvajanje dvojezične terminologije za englesko-srpski jezički par koji se oslanja na usaglašeni dvojezični korpus domena, ekstraktor terminologije za ciljni jezik i alat za usklađivanje delova. Ispitujemo performanse metode na domenu ...... of Belgrade Faculty of Mining and Geology Belgrade, Serbia 1 Introduction In science, industry and many research fields, terminology is rapidly de- veloping. Most often, a language that is “lingua franca” for most of these areas is English. As a consequence, for many fields, domain terms are con- ...
... sources, especially for an under-resourced language, such as Serbian. Today, Serbian terminology is transferred mainly from English, since it is better de- veloped for many scientific and technological domains. Purely manual pro- duction of terminological resources is not the solution due to rapid changes ...
... Extraction In our experiments the source language is English, and the target lan- guage is Serbian. For input and processing we used resources and tools de- scribed in Section 3. As the aligned corpus (Input i) we used LIS-corpus alone, or augmented with bilingual pairs from the bi-list. For the extraction ...Branislava Šandrih, Ranka Stanković. "Extraction of Bilingual Terminology Using Graphs, Dictionaries and GIZA++" in Infotheca, Faculty of Philology, University of Belgrade (2020). https://doi.org/10.18485/infotheca.2019.19.2.6
-
The external aggregation Newton's method for solving nonlinear equations and applications
Marija Paunović, Dejan Ćebić, Nebojša Ralević. "The external aggregation Newton's method for solving nonlinear equations and applications" in The University Thought - Publication in Natural Sciences, Centre for Evaluation in Education and Science (CEON/CEES) (2020). https://doi.org/10.5937/univtho10-24982
-
Exhumation history of the Juhor Mts. in central Serbia, the Northern Serbo–Macedonian Subunit
Uros Stojadinovic, Hannah Pomella, Nemanja Krstekanić, Bojan Kostić, Maja Maleš, Nikola Randjelovic, Miloš Radonjić (2024)Northern Serbo–Macedonian Subunit, low-t thermochronology, kinematic analyses, extensional deformationsUros Stojadinovic, Hannah Pomella, Nemanja Krstekanić, Bojan Kostić, Maja Maleš, Nikola Randjelovic, Miloš Radonjić. "Exhumation history of the Juhor Mts. in central Serbia, the Northern Serbo–Macedonian Subunit" in Geologica Carpathica, Jun 2024, Central Library of the Slovak Academy of Sciences (2024). https://doi.org/10.31577/GeolCarp.2024.12
-
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)... [CrossRef] 26. Brans, J.-P. L’ingénièrie de la décision; Elaboration d’instruments d’aide à la décision. La méthode PROMETHEE. In L’aide à la Décision: Nature, Instruments et Perspectives d’Avenir; Nadeau, R., Landry, M., Eds.; Presses de l’Université Laval: Ville de Québec, QC, Canada, 1982; pp. 183–213 ...
... PROMETHEE 1.4 Manual, 5 September 2013. Available online: http://www.promethee-gaia.net/ (accessed on 12 April 2016). 30. Macharis, C.; Springael, J.; De Brucker, K.; Verbeke, A. PROMETHEE and AHP: The design of operational synergies in multicriteria analysis. Strengthening PROMETHEE with ideas of AHP ...Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić. "Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija" in Energies, MDPI AG (2016). https://doi.org/10.3390/en9110935
-
Analiza parametara bušenja i miniranja na površinskom kopu „Čokoće“ - Novi Popovacu softverskom paketu O-Pitblast
Aleksandar Đorđević (2024)Bušenje i miniranje predstavlja prvu fazu u otkopavanju čvrstih mineralnih sirovina, kako u podzemnoj tako i u površinskoj eksploataciji.Bušenjem i miniranjem vrši se njihovo odvajanje iz masiva i drobljenje na komade neophodne krupnoće.Uprkos razvijenoj mehanizaciji, praktično jedini efikasni postupak otkopavanja čvrstih stenskih masiva zasnovan je na primeni eksploziva.Ležište krečnjaka “Čokoće” kao i cementara “Moravacem” nalaze se u Popovcu kod Paraćina u centralnom delu Srbije. Preduzeće datira još iz davne 1928.godine, koje je tada, u improvizovanim pećima, peklo i proizvodilo kreč.Od 2015. ...... dužine 600 mm. > Anfo smeša 70 % u rasutom stanju. Tabela 4.5. Tehničke karakteristike primenjenih eksploziva Eksploziv Dvu = O 90 mm Anfo smeša De = 80 mm re= 0,9 (kg/I) pe = 5,50 kg/m Patrone = 070 mm; 1,5 kg L patrona= 330 mm pe = 5,50 kg/m Patrone = 265 mm; 2,2 kg L patrona= 600 mm ...
... čvrstoća na istezanje stene (kPa) 33 Linija najmanjeg otpora se može izračunati iz odnosa: 1,15 · 1,2 0,5 ) =3,15m = 3,2m 2.5 A·e W=53·k1·De·(T)=53·1·0,080·( W =3,2m gde je: Ki — koeficijent koji utiče na smanjenje zapremine usled raspucalosti stene K ı = 1 D- – prečnik eksplozivnog ...
... g punjenja D = 80 mm, (0,080 m — srednji prečnik) re, Is— gustina eksploziva ı stene 1,2)3 W = 37,8 · 0,08 · {Š} W = 2,8m Ili D W = 12 · De-{z-—e+ 1,5} Ps Wr = 2,78m Iz prethodno dobijenih rezultata dobili smo da se LNO dobijena empirijskim formulama kreće u granicama od 2,78 m do ...Aleksandar Đorđević. Analiza parametara bušenja i miniranja na površinskom kopu „Čokoće“ - Novi Popovacu softverskom paketu O-Pitblast, 2024
-
Mineragenija i potencijalnost karbonatnih sirovina rudnog reona Bjelopavlića (Crna Gora)
Darko M. Božović (2016-09-28)Karbonatne sirovine, obzirom na geološku građu Crne Gore predstavljaju jednu od najznačajnijih nemetaličnih mineralnih sirovina. U Crnoj Gori postoje brojna leţišta karbonatnih sirovina (arhitektonsko - građevinskog i tehničko - građevinskog kamena) koja su istraţena ili su u eksploataciji, među kojima rudni reon Bjelopavlića zauzima najznačajnije mjesto.Dosadašnja istraţivanja karbonatnih sirovina na ovom području imala su, međutim, prevashodno uzak istraţivački cilj, utvrđivanje rezervi arhitektonsko - građevinskog i tehničko - građevinskog kamena određenog leţišta, ili preliminarna ispitivanja kvaliteta krečnjaka u njima, sa ...karbonatne mineralne sirovine, arhitektonsko - građevinski kamen, tehničko - građevinski kamen, karbonatna punila, rudni reon Bjelopavlića, potencijalnost.... Chorowicz, J., Cousin, M. & Rampnoux, J.-P., 1970: Essai sur la géologie des Dinarides. Bulletin de la Société Géologique de France 12/6, 1060–1095 pp. Aubouin, J., 1974: Des tectoniques superposees et de leur signification par raport aux modeles géophysiques: l’exeple des Dinarides, paleotéctonique ...
... foraminifere: Miliolidae gen. ind., Nezzazatinella (“Valvulammina“) picardi (Henson), Pseudorhapydionina dubia (De Castro), Spiroloculina cretacea Reuss., Moncharmontia apenninica (De Castro), Chrysalidina gradata d`Orbigny, veoma česte Gavelinella sp., Pseudolituonella reicheli Marie, česte ...
... Miliolidae gen. ind., Moncharmontia apenninica (De Castro), Minouxia lobata Gend., Dicyclina schlumbergeri Mun.-Chalm., Pseudocyclammina sphaeroidea Gend., Rotorbinella scarsellai Torre, Pararotalia tuberculifera (Reuss), Scandonea mediterranea De Castro, Pseudonummoloculina heimi (Bonet), Rotalia ...Darko M. Božović. "Mineragenija i potencijalnost karbonatnih sirovina rudnog reona Bjelopavlića (Crna Gora)" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-28)