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1076 items
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Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides
Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović (2021)... overall system transfers N–S strike-slip into E-W oriented thrusts and back-thrusts (Fig. 3b). 4.1.2. Formation of the main N–S oriented strike-slip fault After approximately 4 cm of displacement of the mobile sheet (Fig. 3c and d), all Riedel shears are connected and the main N–S ori- ented strike-slip ...
... deformation along the N–S oriented flank of the indenter, trans- pression along the curved indenter segment and contraction at the E-W striking margin of the indenter. The partitioning into these deformation regimes takes place during the entire experiment, although structural N. Krstekanić et al. ...
... top-view photos in the E-W and N–S direction. Basin depths are obtained from the cross-sections. b) Top-view basin location and geometry at the end of each experiment relative to the indenter, taken as the outline of the syn-kinematic sediments in the final top-view photograph. N. Krstekanić et al. ...Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović. "Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides" in Journal of Structural Geology, Elsevier BV (2021). https://doi.org/10.1016/j.jsg.2021.104386
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Optimising in electrical energy consumption in mining plants
Snežana Aleksandrović, Vesna Damnjanović, Ilija Jeftenić. "Optimising in electrical energy consumption in mining plants" in 17th International Symposium INFOTEH-JAHORINA 2018, Istočno Sarajevo : Elektrotehnički fakultet, Univerzitet u Istočnom Sarajevu (2018)
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Допринос одређивању безопасног растојања при извођењу минирања
... 6p31«1·Ha, yKyHIHa KOJIHUHHa i=1 i-1 i-1 eKCIIJIO3HBa, pacToOjaPbe, KaO H peJIyKOBaHO (3.4) pacrojame Jaro je y TaGemu 3.1. [1]. rne je: N – opoj H3BpIeHHxX Mepehba. N N Nloga - bžXlog x; = Xlog y; i=1 i=l Ta6ejna 3.1. VnaaiHu nojtarıı MUHHpalba H Mepebba P. | Mwumnp. | Mepno r Qu Vy M MI Vimax ...
... EKCIIJIO3HBAa, (kg). 3a onpebuBabe mapaMerpa (Ky) ı (n) yrMaBHOM CC | KOPpHCTH MeCTOJA HajMaMHX KBajipara [3]. JenHaugHa 3.1 ce norapaTMyJe H TaKO CE CBOJIH Ha O0JIHK: log v=log K, — nlog R(3.2) YpBobePeM 3aMeHe: v=y;Ky=a;R=x; n = b; jenHaunHa Jno0unja curentehH OOJTHK: loga-blog x=log ...
... OJL KOJIMUHMHC CKCIMO3MBa (Q), pacrojaP»a (r), ycyoBa HM3BODema MHHHpaMa, KaoO H KapaKTepHcTMHKa TJIa. OBajJ 34aKOH HaM oMoryhaBa ma cc yHaNpc)N 3a CBaKO MHHHP2aMb6 IIporHo3Hpa Op3HHa OCIH;IOBaMba, OJIHOCHO JIA CC HpCJIBHJUH CTCHCH CCH3MHUKOT yTiejcrBa KojH he OaTH H3a3BaH MHHHpaMbeM. Ha OBaj ...Slobodan Trajković, Sanja Bajić, Ivan Krsmanović. "Допринос одређивању безопасног растојања при извођењу минирања" in ДИТ : Друштво истраживање технологије (2023)
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Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites
Marija Šuljagić, Aleksandar Kremenović, Ivan Petronijević, Adis Džunuzović, Miljana Mirković, Vladimir Pavlović, Ljubica Anđelković (2023)To investigate the effect of synthesis procedure and sintering temperature on the functional properties of perovskite/spinel ceramics, BaTiO3/CoFe2O4 composites were prepared by thermal decomposition, coprecipitation, and microemulsion method, and sintered at 1150°C and 1300°C. The phase composition and morphology of as-prepared powders as well as sintered ceramics were thoroughly examined by X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS). The dielectric and ferroelectric measurements were performed in detail. Generally, the ...Marija Šuljagić, Aleksandar Kremenović, Ivan Petronijević, Adis Džunuzović, Miljana Mirković, Vladimir Pavlović, Ljubica Anđelković. "Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites" in Science of Sintering (2023). https://doi.org/10.2298/SOS220512013S
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Part of Speech Tagging for Serbian language using Natural Language Toolkit
Ranka Stanković, Boro Milovanović (2020)Dok se razvijaju složeni algoritmi za NLP (obrada prirodnog jezika), osnovni zadaci kao što je označavanje ostaju veoma važni i još uvek izazovni. NLTK (Natural Language Toolkit) je moćna Python biblioteka za razvoj programa zasnovanih na NLP-u. Pokušavamo da iskoristimo ovu biblioteku za kreiranje PoS (vrsta reči) oznake za savremeni srpski jezik. Jedanaest različitih modela je kreirano korišćenjem NLTK API-ja za označavanje. Najbolji modeli se transformišu sa Brill tagerom da bi se poboljšala tačnost. Obučili smo modele na označenom ...... mentioned above determined the tags solely on the given token. N-gram tagger takes the context of the token in consideration. Bigram tagger takes that token and the one preceding it. Trigram tagger takes the two tokens before the observed one. N-gram taggers are most effective when combined with lower-level ...
... adjective (ADJ), adposition (ADP), adverb (ADV), auxiliary verb (AUX), coordinating conjunction (CCONJ), determiner (DET), interjection (INTJ), noun (N), numeral (NUM), particle (PART), pronoun (PRON), proper noun (PROPN), punctuation (PUNCT), subordinating conjunction (SCONJ), symbol (SYM), verb (VERB) ...
... distributed as shown in the Table III. TABLE III PART-OF-SPEECH CATEGORY DISTRIBUTION AND MAPPING UD_POS COUNT % N_POS NOUN 42936 21.51% N, N:m, N:f, N:n PUNCT 31477 15.77% PUNCT, SENT VERB 20599 10.32% V, V:m, V:f, V:n ADJ 18949 9.49% A, A:am, A:an, A:af ADP 16540 8.28% PREP AUX ...Ranka Stanković, Boro Milovanović. "Part of Speech Tagging for Serbian language using Natural Language Toolkit" in 7th International Conference on Electrical, Electronic and Computing Engineering IcETRAN 2020, Academic Mind, Belgrade (2020)
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Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers
This paper presents a dynamic California Bearing Ratio (CBRd) device that can be used on a prepared pavement foundation layer to obtain a certain parameter of the tested material in the laboratory and in situ in a direct and fast way. For the selected natural material (gravel), it is shown that the laboratory CBRd can be used to estimate the compaction and bearing capacity, because it correlates well with the parameters of the standard and modifed Proctor compaction tests. ...korelacija parametara, donji slojevi saobraćajnica, laboratorijska i terenska ispitivanja, dinamički kalifornijski indeks nosivosti CBRd... force of 7070 N and a piston diameter of 50 mm (cross-section of 1963 mm?), Eq. (1) can be sim- plified to Eq. (2) (p = 3600 N/mm?), as follows: CBR, =87.3/ s"%, (2) where s is the amplitude of the CBR, piston settlement (mm), and p is the maximum amplitude of the dy- namic load (N/mm?). Several ...
... sample in Mg/m*. 30 a % - b 200 - ii D tl/(:· AŠ |=} 180 - 70 //E?] “ (-P-4"| AAJA N B D/_T'Jč, ___160 – A “A Ee . PrO M “ A Š Š D n f Č ĆA A -- o B 140 ; _ [- Ž . A a 50 M ~ : AAA AA n 070 - BI A AAAA %Ž mpon-- D A Z AA _ |j A 0 7 O A ŠA -& W m 1 l 100 _Z A a A |} A 30 ...
... Statistician: A Beginners Guide to Unleashing the Power of Applied Statistics in the Real World, |im Higgins Publishing, USA (2005). o M T : M m n m p n n — 35 ...Milan Bogdanović, Snežana Bogdanović, Dragoslav Rakić, Irena Basarić Ikodinović. "Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers" in Soil Mechanics and Foundation Engineering, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s11204-024-09939-x
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Stratigraphy and Microfauna (Radiolarians and Foraminifera) of the Upper Cretaceous (Upper Santonian–Lower Campanian) Carbonate Deposits in the Area of Struganik Village, Western Serbia)
Santonian, Campanian, radiolarians, planktonic foraminifera, biostratigraphy, limestones, Struganik, SerbiaLiubov Bragina, Nikita Bragin, Luidmila Kopaevich, Nevenka Đerić, Nataša Gerzina Spajić. "Stratigraphy and Microfauna (Radiolarians and Foraminifera) of the Upper Cretaceous (Upper Santonian–Lower Campanian) Carbonate Deposits in the Area of Struganik Village, Western Serbia)" in Stratigraphy and Geological Correlation, Pleiades Publishing Ltd (2020). https://doi.org/10.1134/S0869593820010037
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Structure, interaction with biomolecules, and cytotoxicity of copper (II) complexes chelating some Schiff base ligands
Aleksandar Mijatović, Angelina Z. Caković, Aleksandar Lolić, Olivera Klisurić, Marko N. Živanović, Dragana S. Šeklić, Snežana Sretenović, Marija Ilić, Jovana Bogojeski (2023)Cancer remains one of the world's deadliest diseases, claiming many lives each day. Transition metal complexes are leading candidates in developing anticancer agens with cisplatin used in chemotherapy worldwide. Copper, an endogenous metal in the human body, is especially attractive because of its typical redox biological activities and a relatively strong affinity to nucleobases. A series of Cu(II) complexes with ethane-1,2-diamine as the amine part and pentane-2,4-dione and/or 1-phenylbutane-1,3-dione, pentane-2,4-dione and/or 1,1,1- trifluoropentane-2,4-dione, or 1,1,1-trifluoropentane-2,4-dione and/or 1-phenylbutane-1,3-dione as the ...Aleksandar Mijatović, Angelina Z. Caković, Aleksandar Lolić, Olivera Klisurić, Marko N. Živanović, Dragana S. Šeklić, Snežana Sretenović, Marija Ilić, Jovana Bogojeski. "Structure, interaction with biomolecules, and cytotoxicity of copper (II) complexes chelating some Schiff base ligands" in Applied Organometallic Chemistry, Wiley (2023). https://doi.org/10.1002/aoc.7253
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Kvartarni klastiti iz bušotine kod Aranđelovca (rasadnik Mladost)
Miroslav Radeta (2024)U ovom radu analizirani su kvartarni klastiti iz bušotine kod Aranđelovca IB 18-3, sa ciljem boljeg razumevanja njihovih sedimentoloških i litoloških karakteristika. Kvartarni sedimenti su prilično homogenog/uniformisanog sastava i čine ih finozrni klastiti (dominantno alevroliti) sa određenim procentom peskovite i glinovite frakcije. Oni su iskartirani u samoj povlati i debljina im je 27 m. U podini su gornjokredne karbonatne stene (krečnjaci, laporci, rekristalisali/mermerisani karbonati) i miocenski sediment predstavljeni raznovrsnim varijetetima klastično karbonatnih stena. Ispitivani kvartarni sedimenti odlikuju se odsustvom ...... Dimitrijević M. N., (11973): OLISTOSTROME MELANGE IN THE YUGOSLAVIAN DINARIDES, Journal of Geology, vel. 81, No .3. Chikago. Dimitrijević M. D., Dimitrijević M. N., (1974): Šćš GENEZI „DIJABAZ.RO2ONACKE FORMACIJE". Geo- loski glasnik knj. VII, Titograd. Dimitrijević M. D., Dimitrijević M. N., (1975a): ...
... Rudarsko-geološki fakultet. Obradović J. i PFasić N., (1988): Metode ispitivanja sedimentnih stena, Rudarsko-geološki fakultet, Beograd, s. 139 Pantić N., (1956): BIOSTRATIGRAFIJA TERCIJARNE FLORE SRBIJE. Goceol. anali Balk. Pol. knj. XXIV, Beograd. Pantić N., (1957): PRILOZI POZNAVANJA NEOGENE FLORE SRBIJE ...
... VIII, Zagreb. Dimitrijević M. D., Dimitrijević M. N., (1975b): OFIOLITSKI MELAN2? DINARIDA I VARDARSKE. ZONE: GENEZA I GEOTEKTONSKO ZNACENJE. Radovi Znanstvenog savjJeta za naftu Serija A, knj. 5, Zagreb. . Dimitrijević M. D., Dimitrijević M. N., (1978): OLISTOSTROMSKI POLIFAZNI I RECIKLIRANI OFIO ...Miroslav Radeta. Kvartarni klastiti iz bušotine kod Aranđelovca (rasadnik Mladost), 2024
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Poređenje rezultata interferometrijske analize za zemljotrese na istočnom anatolijskom rasedu od 2020. i 2023. godine
Dragan Živković (2024)Ovaj rad se bavi analizom površinskih deformacija izazvanih zemljotresima u Turskoj iz 2020. i 2023. godine korišćenjem diferencijalne satelitske radarske interferometrije (DInSAR tehnike). Cilj istraživanja bio je da se kvantifikuju i uporede deformacije terena izazvane ovim seizmičkim događajima i da se razumeju mehanizmi koji stoje iza oslobađanja seizmičke energije u regionu. Analizom DInSAR snimaka, identifikovane su različite deformacije duž rasednih zona za svaki zemljotres. Dok je zemljotres iz 2020. godine (M 6,7) izazvao lokalizovane deformacije duž Istočno anatolijskog raseda, zemljotres ...Dragan Živković. Poređenje rezultata interferometrijske analize za zemljotrese na istočnom anatolijskom rasedu od 2020. i 2023. godine, 2024
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Дефинисање параметра песковитог тла за потребе прорачуна слегања плиткох темеља преко CPTm и CPTu опита
Александар Јаковљевић (2024)Дефинисање меродавних геотехничких параметара тла за потребе прорачуна слегања.(a и носивости)темељног тла један је од главних задатака инжењера геотехнике.Од поузданости ових параметара и последично резултата прорачуна слегања и носивости, директно зависи који ће се тип, врста и димензије темеља као и начин фундирања истог примењивати.Да би се поуздано дефинисали неопходни геотехнички параметри а потом и извели потребни прорачуни слегања, потребно је на првом месту познавање деформабилних карактеристика тла.Подаци о збијености тла могу се добити или лабораторијским испитивањима на претходно ...... IOOkPo • I.02 kgf/cmž SANDS / // SAND/S/ / /ANDŠIAS:;·[D:'S / / /CLAVEV / 7 / ILTY CLAYS /s _ CLAYS C O N E R E S I S T A N C E , bo rs C O N E B E A R I N G , .. bo rs FRICTION RATIO,FR, % o | | 3 4 5 6 FRICTION RATIO, FR, % 1 bar = 100 kPa = 1 kgf/cm? Cauka ...
... -7878 Po1+Po2+Pr+G: UREĐENA ZELENA POVRŠINA 7813 N PARTERNA DEKORATVNA VEGETACIJA „ DEKORATIVNO NiŽE LISTOPADNO DRVEĆE – — \ | 78.16NU! Y/ 786 URBANI MOBILIJAR-KLUPE ZA ODMOR F a KOTA PRIZEMLJA - POSLOVNI PROSTOR \ 1827 / N 789 & g b_-i N 783 Po1+Po2+Pr · · 7 79,00 u IB-{ 7880 74,00 KOTA ...
... -i .009 altacaa .. 7 HO i 1 i 1E IOM 1 fO |28 E 1E _OMB a 1ER RE 8a ž 1E ŠAG 12 18 BBSS 188 136 Bs 199 138 53 128 185 HNI 1E DE3 BE oO NN N N 1E BJ M O JJ JJ 38 BO | GiM 1BEA OJ I P MBJ Te _8 PGSN | SOČOE DE i Syed __ — al -- M I — Cnuka 2,10 Quna.inhu txt. bajn RHakoH Cnuka 2,11 EnekmpuuHu ...Александар Јаковљевић. Дефинисање параметра песковитог тла за потребе прорачуна слегања плиткох темеља преко CPTm и CPTu опита, 2024
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Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases
Ispitivani su uticaji primene mono- i dvokomponentnih organskih modifikatora na određivanje lipofilnosti 12 tetradentatnih Šifovih baza metodom reverzno-fazne tankoslojne hromatografije. Osnovni cilj je da se proceni tip interakcije između posmatranih jedinjenja i komponenti primenjenih hromatografskih sistema i uspostavi neki obrazac ponašanja kako bi se lakše izabrala kombinacija organskih modifikatora koji će simulirati interakciju u biološkim sistemima na osnovu činjenica da iste osnovne intermolekularne interakcije su odgovorne za ponašanje supstanci i u biološkom i u hromatografskom sistemu. Primenjeni organski modifikator ...Nikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić. "Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases" in Chemical Papers, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s11696-021-01884-5
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Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone
The Vardar Zone is a product of the Triassic-Jurassic opening of the Neotethys, Jurassic obduction, Late Cretaceous/Paleogene consumption of the oceanic crust and continental collision. During the last process, the Eastern Vardar Zone was thrust over the Central and eventually both onto the Western Vardar Zone. The present paleomagnetic and structural study provided new results from the first two zones in the Belgrade area. The younger set of data, together with published ones from the third zone, provide firm ...Emő Márton, Marinko Toljić, Vesna Cvetkov. "Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone" in Journal of Geodynamics, Elsevier BV (2022). https://doi.org/10.1016/j.jog.2021.101880
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Ležište i rudnik Pb-Zn "Trepča" - Stari Trg
Petar Novaković (2022)Petar Novaković. Ležište i rudnik Pb-Zn "Trepča" - Stari Trg, Beograd : [N. Blečić], 2022
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Determination of Mechanical Properties of Altered Dacite by Laboratory Methods
This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...... Methods Veljko Rupar 1,*, Vladimir Čebašek 1 , Vladimir Milisavljević 1, Dejan Stevanović 1 and Nikola Živanović 2 ���������� ������� Citation: Rupar, V.; Čebašek, V.; Milisavljević, V.; Stevanović, D.; Živanović, N. Determination of Mechanical Properties of Altered Dacite by Laboratory ...
... Milisavljević, Dejan Stevanović, Nikola Živanović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Determination of Mechanical Properties of Altered Dacite by Laboratory Methods | Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola ...
... Article Determination of Mechanical Properties of Altered Dacite by Laboratory Methods Veljko Rupar 1’*, Vladimir Ceba’ek 1, Vladimir Milisavljevié 1, Dejan Stevanovié 1 and Nikola Zivanovié ” Mining Department, Mining and Geology Faculty, University of Belgrade, 11000 Belgrade, Serbia; vladimir.cebasek@ref ...Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović. "Determination of Mechanical Properties of Altered Dacite by Laboratory Methods" in Minerals, MDPI AG (2021). https://doi.org/10.3390/min11080813
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Quantifying the mass transfer from mountain ranges to deposition in sedimentary basins: Source to sink studies in the Danube Basin–Black Sea system
Matenco Liviu, Andriessen Paul, Avram Corina, Bada Gabor, Beekman Fred, Bielik Miroslav, ter Borgh Marten, Cifci Gunay, Cvetković Vladica, Dinu Corneliu, Dombradi Endre, Dondurur Derman, Ergun Mustafa, Francu Juraj, Fügenschuh Bernhard, Garcia-Castellanos Daniel, Götz Joachim, Horváth Ferenc, Houseman Gregory, Knežević Slobodan, Kovac Michal, Kralikova Silvia, Krijgsman Wout, Kucuk Mert, Legosteva Olga, Lericolais Gilles, Jipa Dan, Maximov Greg, Melinte Mihaela, Minar Jozef, Munteanu Ioan, I.J. Munt, C. Olariu, J.C. Otto, N. Panin, D. Plašienka, Reiser Martin, Rundić Ljupko, M. Rupprechter, Safanda Jan, Schmid Stefan, Schrott Lothar, Schuster Ralf, Starostenko Vitaliy, R.J. Steel, Stephenson Randell, Stovba Sergiy, Sokoutis Dimitrios, Stankoviansky Miloš, Stoica Marius, Stojadinović Uroš, Toljić Marinko, Tomljenović Bruno, ter Voorde Marlies, Wong How Kin (2013)Matenco Liviu, Andriessen Paul, Avram Corina, Bada Gabor, Beekman Fred, Bielik Miroslav, ter Borgh Marten, Cifci Gunay, Cvetković Vladica, Dinu Corneliu, Dombradi Endre, Dondurur Derman, Ergun Mustafa, Francu Juraj, Fügenschuh Bernhard, Garcia-Castellanos Daniel, Götz Joachim, Horváth Ferenc, Houseman Gregory, Knežević Slobodan, Kovac Michal, Kralikova Silvia, Krijgsman Wout, Kucuk Mert, Legosteva Olga, Lericolais Gilles, Jipa Dan, Maximov Greg, Melinte Mihaela, Minar Jozef, Munteanu Ioan, I.J. Munt, C. Olariu, J.C. Otto, N. Panin, D. Plašienka, Reiser Martin, Rundić Ljupko, M. Rupprechter, Safanda Jan, Schmid Stefan, Schrott Lothar, Schuster Ralf, Starostenko Vitaliy, R.J. Steel, Stephenson Randell, Stovba Sergiy, Sokoutis Dimitrios, Stankoviansky Miloš, Stoica Marius, Stojadinović Uroš, Toljić Marinko, Tomljenović Bruno, ter Voorde Marlies, Wong How Kin. "Quantifying the mass transfer from mountain ranges to deposition in sedimentary basins: Source to sink studies in the Danube Basin–Black Sea system" in Global and Planetary Change no. 103, Amsterdam:Elsevier (2013): 1-18. https://doi.org/10.1016/j.gloplacha.2013.01.00
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Ostvarivanje dobiti pri uvođenju sistema agregatnih zamena na osnovnoj rudarskoj mehanizaciji površinskih kopova EPS
Jedan od osnovnih zadataka na površinskim kopovima uglja je ostvarivanje zadovoljavajućeg vremenskog i kapacitetnog iskorišćenja kontinualnih sistema. Da bi se to postiglo, neophodno je izvršiti izmene u postojećoj strategiji održavanja. Preduslov je uvođenje agregatne zamene vitalnih delova na rudarskim mašinama. Benefiti su višestruki. Očekivani rezultati ovakvog pristupa su: smanjenje zastoja i povećanje vremena rada; direktne materijalne uštede; bolja organizacija rada; racionalizaciju radioničkih i magacinskih kapaciteta; povećanje vrednosti mašina. Da bi se uvela agregatna zamena neophodne su investicije za nabavku ...Predrag Jovančić, Ignjatović Dragan, Đenadić Stevan. "Ostvarivanje dobiti pri uvođenju sistema agregatnih zamena na osnovnoj rudarskoj mehanizaciji površinskih kopova EPS" in X Međunarodna konferencija UGALJ, Zlatibor, Srbija, 13-16. Oktobar 2021., Jugoslovenski komitet za površinsku eksploataciju (2021)
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Sinteza i strukturna karakterizacija mikroporoznih arsenata i fosfata
Sabina Z. Kovač (2015-09-28)Predmet rada i istraživanja ove doktorske disertacije su sinteza i strukturnekarakteristike novih kristalnih arsenata i fosfata koji sadrže Mg, K, Ca, Mn, Fe, Co, Ni,Cu, Zn, Sr, Ba i druge katjone. U strukturama arsenata i fosfata, AsO4- i PO4-tetraedrinajčešće se vezuju sa tetraedarski ili oktaedarski koordinisanim katjonima prelaznihmetala formirajući otvorene strukture (slojeve ili 3D mreže) sa širokim opsegomrazličitih topologija. U šupljinama ili porama u obliku povezanih ili nepovezanihkanala, tunela, kaveza i međuslojnog prostora mogu se ugraditi različiti vanmrežni joni(obično ...... M, u prstenu kao prsten sa n članova, gde je n broj ceH atoma u prstenu. Prstenovi koji definišu zidove pora nazivaju se prozori. Pora, čiji su prozori suviše uski da bi u njih ušli gostujući molekuli veći od H2O, naziva se kavez. Za okside (peH=O) se smatra da je n = 6 granična veličina prstena ...
... jednostrukih veza nazivaju se konformacije tog molekula. Približna dužina veze C‒C iznosi 1,52, a dužina veze C‒N 1,47 Å (Cooke et al., 2013) (slika 1). Kad je torzioni ugao N‒C‒C‒N približno 180 º konformacija molekula naziva se anti konformacija, a kad je oko 60 º naziva se goš konformacija ...
... P42/n (br. 86) a = 10,6819(15) c = 9,0590(18) V = 1033,7(3) 15,48 ZnFeAs-ovaj rad 7 (H2en)[Co0,1Zn0,9AsO4]2 T = 16, Z = 4 [Zn‒Co‒As‒O] P42/n (br. 86) a = 10,6845(15) c = 9,0492(18) V = 1033,0(3) 15,49 ZnCoAs-ovaj rad 8 (H2en)[ZnAsO4]2 T = 16, Z = 4 [Zn‒As‒O] P42/n (br. 86) ...Sabina Z. Kovač. "Sinteza i strukturna karakterizacija mikroporoznih arsenata i fosfata" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-09-28)
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Environmental Energy Security Indicators as Tools for Environmental Protection
Еколошка прихватљивост је постала незаменљив синтезни показатељ сваке валидне енергетске анализе у последње две-три деценије. Енергетска безбедност је у директној хармонији с еколошком прихватљивошћу кроз многе прописане политичке циљеве, економске користи, правне тековине итд. Индикатори еколошке сигурности представљају један од основних елемената за одређивање енергетске безбедности и снажне алате за усмеравање енергетског сектора ка одрживом развоју. У овом раду, анализа је била концентрисана на показатеље енергетске безбедности у области животне средине који се односе на сектор природног гаса у ...енергетска безбедност, еколошки енергетски индикатори, заштита животне средине, еколошка прихватљивост... Aleksandar Madžarević, Dejan Ivezić, Marija Živković , Miloš Tansijević Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Environmental Energy Security Indicators as Tools for Environmental Protection | Aleksandar Madžarević, Dejan Ivezić, Marija Živković ...
... – 28. 2019, Vrdnik, Serbia ENVIRONMENTAL ENERGY SECURITY INDICATORS AS TOOLS FOR ENVIRONMENTAL PROTECTION Aleksandar Madžarević1, Dejan Ivezić2, Marija Živković3, Miloš Tanasijević4 1-5University of Begrade – Faculty of Mining and Geology, Belgrade, SERBIA, aleksandar.madzarevic@rgf ...
... multi-criteria evaluation method for climate change mitigation policy instruments, Energy Policy, Volume 35, 2007, pp. 6235–6257 12. Scheraga, J., Leary, N., Improving the efficiency of policies to reduce CO2 emissions, Energy Policy, Volume 20 (5), 1992, pp 394-404 13. IPCC, Guidelines for National ...Aleksandar Madžarević, Dejan Ivezić, Marija Živković , Miloš Tansijević. "Environmental Energy Security Indicators as Tools for Environmental Protection" in Mining and Environmental Protection-MEP 2019, University of Belgrade, Faculty of Mining and Geology (2019)
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Distribution of major and trace elements in the Kovin lignite (Serbia)
Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović (2019)geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive Xray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). ...... Lake Pannon in Central Europe.– Palaeogeography, Palaeoclimato logy, Palaeoecology, 147, 151–167. doi: 10.1016/S00310182(98)001552 MAGYAR, I., RADIVOJEVIĆ, D., SZTANÓ, O., SYNAK, R., UJSZÁSZI, K. & PÓC SIK, M. (2013): Progradation of the paleoDanube shelf margin across the Pan nonian Basin during ...
... MITROVIĆ, D., ĐOKOVIĆ, N., ŽIVOTIĆ, D., BECHTEL, A., ŠAJNOVIĆ, A. & STOJANOVIĆ, K. (2016): Petrographical and organic geochemical study of the Kovin lignite deposit, Serbia.– International Journal of Coal Geology, 168, 80–107. doi: 10.1016/j.coal.2016.07.008 MITROVIĆ, D., ĐOKOVIĆ, N., ŽIVOTIĆ, D., BECHTEL ...
... 39.46 6.85 12.10–50.26 36.23 10.79 9.67–46.71 30.88 14.19 Q daf g (MJ/kg) 21.00–28.30 24.29 1.82 16.90–27.80 23.48 3.09 15.70–26.30 23.00 3.71 Qdaf n (MJ/kg) 20.10–27.20 23.26 1.82 16.30–26.70 22.42 3.02 14.30–25.30 22.02 3.75 Cdaf (wt.%) 56.48–73.24 64.78 3.92 52.25–74.02 64.40 4.73 55.23–70.45 64 ...Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović. "Distribution of major and trace elements in the Kovin lignite (Serbia)" in Geologia Croatica, Croatian Geological Survey (2019). https://doi.org/10.4154/gc.2019.06