Претрага

Упит dcterms_creator_txt:Petrović T.

637 items

  • Robust IMC Controllers with Optimal Setpoints Tracking and Disturbance Rejection for Industrial Boiler

    Ivezić Dejan, Petrović T. (2010)

  • Specific electrical conductivity in epikarst groundwater of the eastern Suva Planina mt.

    Branislav Petrović (2022)
    The epikarst is a part of the karst outcrop that is located within the unsaturated zone and represents a complex point of contact and mixing of unconsolidated material from the terrain surface. The correct and complete perception of epikarst, its degree of development and the presence on the limestone terrain can be achieved with a multidisciplinary approach. The study area for the applied multidisciplinary research was the Eastern part of karst massif Suva Planina Mt. One important part of ...
    epikarst, specifična električna provodljivost, Suva Planina, pećina Peč

  • 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
    ... , Ignjatović D., Stepanović S., Petrović B.; METODOLOGIJA IZBORA ROTORNOG BAGERA ZA SELEKTIVNU EKSPLOATACIJU UGLJA, VI Međunarodna Konferencija UGALJ 2013, Zlatibor, 2013. [39.] Pavlović V., Kolonja B., Ignjatović D., Životić D., Jovančić P., Šubaranović T., Stepanović S., Dimitrijević B. ...
    ... RESURSIMA U REPUBLICI SRBIJI, Beograd, 2011. [42.] Petrović B., Radisavljević Z., Milošević D.; ZNAČAJ ANALIZE STABILNOSTI KOSINA ZA PROCES EKSPLOATACIJE UGLJA U RB KOLUBARA, VI Međunarodna Konferencija UGALJ 2013, Zlatibor, 2013. [43.] Petrović B.; GEOMEHANIČKI PROCESI PRI POVRŠINSKOJ I PODZEMNOJ ...
    ... Бранко М. Петровић Број индекса _Р209 Студијски програм Рударско инжењерство Наслов рада Оптимизација дужине стреле роторних багера у функцији стабилности косина и ефективности а на површинским коповима лигнита Србије Ментор Доц. др Владимир Чебашек Потписани/а Бранко М. Петровић Изјављујем ...

  • Збирка задатака из Механике 1 и Отпорности материјала

    Aна Петровић, Инес Гроздановић (2023)
    статика, отпорност материјала
    ... Збирка задатака из Механике 1 и Отпорности материјала Aна Петровић, Инес Гроздановић Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Збирка задатака из Механике 1 и Отпорности материјала | Aна Петровић, Инес Гроздановић | | 2023 | | http://dr.rgf.bg.ac.rs/s ...
    ... Beorpany AHa TlerponBuh VlHec T poanaHoBuh 3BMPKA 3ALATAKA vw3a MEXAHMKE 1 u OTIIOPHOCTM MATEPMJAJIA Pynapcko-reonouika oDakynTeT Beorpan, 2023. Aymopu: np AHa TleTpoBuh, MacT. MHX. Maul. noueHT MauiHckor opakynTeTa, YHuBep3aurerTa y Beorpa/ny np ViHec T poanaHoBuh, nunn. MeX. penonBHu ...
    ... Beorpa/ny Beorpan, Pyuwa 7, 11020 Beorpan Ten: +381 (0)11/3219-101 dbakc: +381 (0)11/3235-539 3a u30Basaua: npoob. np BurbaHa A06ornwMacoB, nekaH T naaeHu u o0ao6oOpHu ype0OHuk: npoob. np Mapuja »KvuBkoBuh O8o060peHo 3a uimaMrny o0nykoM Hacmas6Ho-HayuHoo2 gaeha Pydapcko- eeonouikoe dpbakynmema ...

  • Prostorni položaj ofiolita istočne Vardarske zone: geofizičko-geološki model i njegove geodinamičke implikacije

    Dragana D. Petrović (2015-12-29)
    Centralni deo Balkanskog poluostrva je geotektonski veoma složen. Tetis je zatvorentokom gornjeg mezozoika, a ofioliti na zapadu i ofioliti Vardarske zone predstavljajuostatke nekadašnjih okeanskih prostora. Najistočniji deo Vardarske zone razlikuje se odsvih ostalih ofiolita na Balkanskom poluostrvu i karakteriše se najizraženijim suprasubdukcijskimafinitetom. Istočna vardarska zona locirana je u centralom delu Srbije.Na severu se prostire do Apusena u Rumuniji, a na jugu obuhvata cetralni deoMakedonije i Peonias zonu u severnoj Grčkoj. Istočna vardarska zona se nalazi istočnood geotektonske jedinice Kopaonik ...
    Istočna vardarska zona; ofioliti; 2D i pseudo 3D geofizičko-geološkimodel; geodinamička evolucija
    ... M22 - Petrović, D., Cvetkov, V., Vasiljević, I., Cvetković, V., 2015: A new geophysical model of the Serbian part of the East Vardar ophiolite: Implications for its geodynamic evolution, Journal of Geodynamics, v.90, p. 1-13; DOI: 10.1016/j.jog.2015.07.003 Kategorija M34 - Petrović D., 2014: ...
    ... Belgrade - Petrović D., 2014: Geophysical-geological inferences on the geotectonic position of the East Vardar ophiolites, Comptes rendus des séances de la Société Serbe de géologie pour l' année 2013,Belgrade: Serbian Geological Society; ISSN 0372-9966 Kategorija M64 - Petrović D., Ignjatović ...
    ... и презиме аутора Драгана Петровић Број индекса 802/2009 Студијски програм геофизика Наслов рада „Просторни положај офиолита Источне вардарске зоне: геофизичко-геолошки модел и његове геодинамичке импликације“ Ментор др Владица Цветковић Потписани/а Драгана Петровић Изјављујем да је штампана ...

  • Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling

    Branislav Petrović, Veljko Marinović, Zoran Stevanović (2023)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Microstructural and magnetic properties of electrospun hematite/cuprospinel composites

    Mira Ristić, Aleksandar Kremenović, Michael Reissner, Željka Petrović, Svetozar Musić (2020)
    Phase composition, microstructural and magnetic properties of electrospun hematite/cuprospinel composites were investigated. Samples were synthesized starting with 0 to 10 mol% of copper relative to iron. The round shape of reference electrospun fbres was preserved upon their heating up to 600 °C in air, whereas at 700 °C hollow substructure was additionally formed. In these reference samples the presence of hematite phase was detected by XRPD. A small amount (traces) of Fe3O4 /γ-Fe2O3 was also found, due to the ...
    Electrical and Electronic Engineering, Condensed Matter Physics, Atomic and Molecular Physics and Optics, Electronic, Optical and Magnetic Materials

  • Procena razvoja politike ublažavanja uticaja na klimatske promene i prilagođavanja klimatskim promenama za Srbiju AMS metodom

    Madžarević Aleksandar, Crnogorac Miroslav, Živković Marija, Ivezić Dejan, Petrović T. (2014)

  • Substitution reactions of some novel sterically hindered monofunctional Pd(II) complexes

    Aleksandar Mijatović, Jovana Bogojeski, Biljana Petrović, Živadin D. Bugarčić (2011)
    Reakcije supstitucije monofunkcionalnih kompleksa [(TLtBu)PdCl]+ i [Pd(tpdm)Cl]+, gde je TLtBu = 2,6-bis[(1,3-di-terc-butilimidazolin-2-imino)metil]piridin i tpdm = terpiridindimetan, sa nukleofilima kao što su: tiourea, I−, Br−, NO2−, piridin i dimetil-sulfoksid (DMSO) proučavani su u 0,1 M vodenom rastvoru NaClO4 u prisustvu 10 mM NaCl. Reakcije su sprovedene na tri različite temperature (288, 298 i 308 K) korišćenjem tehnike zaustavljenog protoka na različitim temperaturama. Reakcije supstitucije su praćene pod uslovima pseudo prvog reda sa velikim viškom nukleofila. Dobijeni rezultati pokazuju da kompleks ...
    Materials Chemistry, Inorganic Chemistry, Physical and Theoretical Chemistry
    ... and 10 mM NaCl. = 107k, 4/8 120 10°k,,,/s? 21. s ai s Kops! 308K " : 100 4 308K 80 4 298K 2 60 4 288K 40 4 A 20 4 0 10*[Pyridine]/M 10°[DMSO]/M| T T T T T 0 + r r r r 4 0 2 4 6 8 10 12 0 2 4 6 8 10 12 Fig. 3. Pseudo-first order rate constants, kps, as a function of ligand concentration and temperature ...
    ... Bogojeski, Biljana Petrović, Živadin D. Bugarčić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Substitution reactions of some novel sterically hindered monofunctional Pd(II) complexes | Aleksandar Mijatović, Jovana Bogojeski, Biljana Petrović, Živadin D. Bugarčić ...
    ... 34000 Kragujevac, Serbia a r t i c l e i n f o Article history: Received 29 July 2011 Received in revised form 28 October 2011 Accepted 9 November 2011 Available online 19 November 2011 Keywords: Pd(II) Substitution Kinetics Mechanism Reactivity a b s t r a c t Substitution reactions of the ...

  • Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?

    Стефан Петровић, Наталија Батоћанин (2020)
    У раду су приказани резултати испитивања серпентинисаних харцбургита Брђана (43°58'45.1" СГШ, 20°25'12.6" ИГД) и талкизираних харцбургита откривених у интервалу 429-559.8 m у истражној бушотини 330А/18 (44°07'33.2" СГШ, 20°30'28.5" ИГД) на Руднику. Узорци оба локалитета показују карактеристике резидуалних харцбургита из омотача, односно тектонита; лепидобластичне, бластозрнасте, или порфирокластичне структуре и масивне текстуре. Серпентинисани харцбургити и серпентинити Брђана су изграђени од серпентина, ретких реликата оливина и ортопироксена, акцесорног спинела, и веома ретког секундарног магнезита и магнетита. Најдоминантнији састојак (местимично гради и преко ...
    Рудник, Брђани, харцбургити, серпентинити, талк
    ... талкизација? Стефан Петровић, Наталија Батоћанин Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација? | Стефан Петровић, Наталија Батоћанин | ...
    ... ЛИТЕРАТУРА - REFERENCES BRKOVIĆ, T., MALEŠEVIĆ, M., KLISIĆ, M., UROŠEVIĆ, M., TRIFUNOVIĆ, S., RADOVANOVIĆ, Z., BOŽANIĆ, M. (1970): Osnovna geološka karta 1:100.000, list Čačak K 34-5. Zavod za geološka i geofizička ispitivanja, Beograd BRKOVIĆ, T., MALEŠEVIĆ, M., UROŠEVIĆ, M., TRIFUNOVIĆ ...
    ... employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs 15 Z A P I S N I C I S R P S K O G G E O L O [ K O G D R U [ T V A za 2019. godinu COMPTES RENDUS DES SÉANCES DE LA SOCIÉTÉ SERBE DE GÉOLOGIE pour les année 2019 REPORTS OF THE SERBIAN GEOLOGICAL SOCIETY ...

  • Hydrogeochemical distribution of Ca and Mg in groundwater in Serbia

    Petar Papić, Jovana Milosavljević, Marina Ćuk, Rastko Petrović (2014)

  • Fuzzy expert analysis of the severity of mining machinery failure

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    Mining machinery failure is almost an everyday occurrence. Usually the failures bare certain consequences, which require additional financial costs to repair and restore the system to its operational state. The consequences are viewed through negative and damaging effects a failure has on the machine, health and safety of the employees, work environment, and on the environment. The removal of the consequences of the failure requires additional financial investment, which has a negative impact on the company’s business. In order ...
    Severity of failure, Severity of failure assessment, Mining machinery, Fuzzy sets, Fuzzy logic

  • Influence of DEM resolution on numerical modelling of debris flows in RAMMS - Selanac case study

    Jelka Krušić, Biljana Abolmasov, Mileva Samardžić Petrović (2019)
    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 ...
    tecišta, modeliranje, RAMMS, DEM
    ... Abolmasov, Mileva Samardžić Petrović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Influence of DEM resolution on numerical modelling of debris flows in RAMMS - Selanac case study | Jelka Krušić, Biljana Abolmasov, Mileva Samardžić Petrović | 4th Regional Symposium ...
    ... The mass balance equation incorporates the field variables flow height H (x, y,t) and flow velocity U (x, y,t) and is given by: 𝑄(𝑥, 𝑦, 𝑡) ˙ = 𝜕𝑡𝐻 + 𝜕𝑥 (𝐻 𝑈𝑥 ) + 𝜕𝑦 (𝐻 𝑈𝑦 ) (1) where Q(x, y,t) ˙ describes the mass production source term, and Ux and Uy represent the depth- ...
    ... DEM resolution on numerical modelling of debris flows in RAMMS - Selanac case study Jelka Krušić(1) , Biljana Abolmasov (1) , Mileva Samardžić-Petrović(2) 1) University of Belgrade, Faculty of Mining and Geology, Belgrade, Đušina 7, +381 11 3219225 2) University of Belgrade, Faculty of Civil ...

  • Valorization of non-balanced coal reserves in Serbia for underground coal gasification

    David Petrović, Lazar Kričak, Milanka Negovanović, Stefan Milanović, Jovan Marković, Nikola Simić, Ljubisav Stamenić (2019)
    In the name of a better and safer energy future, it is our responsibility to focus our knowledge and activities to save on imported liquid and gas fossil fuels, as well as coal on which energy security of Serbia is based. The rationalization in the use of available energy resources certainly positively affects economy and the environment of a country. This paper indicates motivations for the application of the underground coal gasification process, as well as surface gasification for ...
    ugalj, gasifikacija, zaštita životne sredine, skladištenje, solarna
    ... dr.rgf.bg.ac.rs Petrović, D. T., et al.: Valorization of Non-Balanced Coal Reserves in Serbia for ... THERMAL SCIENCE: Year 2019, Vol. 23, No. 6B, pp. 4067-4081 4067 VALORIZATION OF NON-BALANCED COAL RESERVES IN SERBIA FOR UNDERGROUND COAL GASIFICATION by David T. PETROVIĆ“, Lazar M. KRIČAK” ...
    ... thermal value of coal. -1168 E h “ (6) Petrović, D. T., et al.: Valorization of Non-Balanced Coal Reserves in Serbia for ... THERMAL SCIENCE: Year 2019, Vol. 23, No. 6B, pp. 4067-4081 4075 To provide the power of 3.22 MW (out of a total of 1007 MW), 7313 t of coal would be consumed annually. That ...
    ... of 10000 mš /h): Petrović, D. T., et al.: Valorization of Non-Balanced Coal Reserves in Serbia for ... 4076 THERMAL SCIENCE: Year 2019, Vol. 23, No. 6B, pp. 4067-4081 _ _O, _ 29:10%m) O ) 10000mX/h If in 4 months (120 days) amount of the burned coal is: 75-50· 63 = 29250 t, then with UCG the ...

  • Fuzzy Model for Risk Assessment of Machinery Failures

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    The main goal of this research was the development of an algorithm for the implementation of negative risk parameters in a synthesis model for a risk level assessment for a specific machine used in the mining industry. Fuzzy sets and fuzzy logic theory, in combination with statistical methods, were applied to analyze the time picture state of the observed machine. Fuzzy logic is presented through fuzzy proposition and a fuzzy composition module. Using these tools, the symmetric position of the ...
    fazi teorija, rizik, otkaz rudarskih mašina
    ... minimum and maximum recorded time values, t. The allocated time for breakpoints bp2 and bp3 is calculated based on the mean time (T), which depends on the shape parameter β in a standard Weibull distribution [29]. Bp2 = T − x·(T − t1), (3) bp3 = T + x·(tn − T), (4) where: x = 0 for β = 3 and x = 1 ...
    ... of Machinery Failures Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Fuzzy Model for Risk Assessment of Machinery Failures | Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović ...
    ... to Repair, h Failure Function, F(t) Distribution Parameter Scale Factor, x Fuzzification of Time to Repair β η T1 T2 T3 T4 Tm Electric valve 2.2, 4.5, 8, 10.5, 11.6, 15.5 1 − e−(t/10.28)ˆ1.45 1.45 10.28 0.775 2.2 3.8 14.11 15.5 9.32 Computer 22, 26, 40 1 − e−(t/33.15)ˆ2.96 2.96 33.15 0.03 22 29 ...

  • Rockfall monitoring and simulation on a rock slope near Ljig in Serbia

    Marjanović Miloš, Abolmasov Biljana, Pejić Marko, Bogdanović Snežana, Samardžić Petrović Mileva (2018)

  • Automated GNSS monitoring of Umka landslide - Review of seven years experience and results

    Abolmasov Biljana, Pejić Marko, Samardžić Petrović Mileva, Đurić Uroš, Milenković Svetozar (2018)

  • Equilibrium and kinetic studies of the reactions between [Ru(terpy)(bipy)Cl]Cl complex and biologically important N-donor ligands

    Aleksandar Mijatović, Biljana Petrović, Ratomir Jelić, Živadin Bugarčić (2011)
    Studije u oblasti antikancerogenih karakteristika jedinjenja rutenijuma(III/II) izazivaju veliku pažnju već nekoliko godina otkako su neka od njih kao što su KP1019 (indazolijum-tetrahloridobis(H-indazol)rutenat(III)) i NAMI-A (imidazolijum) -trans-tetrahlorido(dimetilsulfoksid)indazolerutenat(III)) dostigao nivo kliničkog ispitivanja. Kompleksi rutenijuma u ​​reakciji sa molekulom DNK formiraju prvenstveno gvanin- i adenin-adukt, kao komplekse platine. Takođe, nekoliko studija ukazuje na veoma jake interakcije sa proteinima. Međutim, kompleksi Ru(III/II) pokazuju generalno manje toksične efekte od lekova platine(II).1 Proučavali smo kinetiku reakcija supstitucije kompleksa [Ru(terpi)(bipi)Cl]Cl sa biološki važnim ligandima: dimetilsulfoksidom, gvanozin-5’-monofosfatom, ...

  • Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia

    Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski (2024)
    General Earth and Planetary Sciences
    ... 03-9 Pendžerkovski J, Rakićević T, Ivanovski T, Gjuzelkovski D (1963) Geological map and guide book for sheet Kožuf (K 34—105), Basic Geological Map of SFRJ 1:100,000. Federal Geological Survey (in Macedonian with English abstract). Belgrade, p 47 Petrović D (2015) Spatial position of the East ...
    ... arches, pyroclastic rocks, subduc- tion mechanism, and the accretionary mechanism (Petrović et al. 2015). EVZ ophiolites are a complex unit, composed of ingenious rocks (gabbro-dolerites, dolerites, dolerite dykes, T 45 50 00 0 and rare basaltic pillow lavas) with geochemical and tectonic affinity ...
    ... 23:725—740. https://doi.org/10.1080/01431 1601 10040323 Ivanovski T, Rakicević T (1966) Basic geologic map of Former Yugo- slavia 1: 100 000, sheet of Gevgelija. Federal Geological Survey, Belgrade (In Macedonian) James G, Witten D, Hastie T, Tibshirani R (2013) An Introduction to Statistical Learning: ...

  • NMR kinetic studies of the interactions between [Ru(terpy)(bipy)(H2O)]2+ and some sulfur-donor ligands

    Aleksandar Mijatović, Biljana Šmit, Ana Rilak, Biljana Petrović, Dragan Čanović, Živadin D. Bugarčić (2012)
    Reakcije supstitucije monofunkcionalnog [Ru(terpi)(bipi)(H2O)]2+ kompleksa, gde je terpi = 2,2′:6′,2″-terpiridin i bipi = 2,2′-bipiridin, sa biološki relevantnim sumporo donorskim ligandima, kao što su tiourea, l-metionin, l-cistein i glutation, proučavane su u vodenim rastvorima tehnikom 1H i 13C NMR spektroskopije. Sve reakcije su proučavajne na pH 7,4, u prisustvu fosfatnog pufera, da bi se oponašalo fiziološko okruženje tokom procesa supstitucije. Reakcije se izvode na 295 K pod uslovima reakcija drugog reda. Uočeni rezultati pokazuju da brzina supstitucije snažno zavisi ...
    Materials Chemistry,Inorganic Chemistry,Physical and Theoretical Chemistry