Претрага
847 items
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Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings
... Equation (4), in the Equation (3), we obtain: v = Kv 3 √ 3Q 4π r n = Kv· ( 3 √ 3 4π )n · ( 3 √ Q r )n = Kv·K1· ( r 3 √ Q )−n = K· ( r 3 √ Q )−n = K·R−n, (5) whereas: ( 3 √ 3 4π )n = K1; Kv = K K1 ; r 3 √ Q = R; (6) whereby: R—the reduced distance is the distance ...
... velocity of the soil v will decrease (increase) by approximately n% [8]. Indeed, for h = ± R 100 = ±1%R, from (12) we obtain: v ( R ± R 100 ) ≈ v(R)∓ n· R 100 · v(R) R , v ( R ± R 100 ) ≈ v(R)∓ n· v(R) 100 , v(R ± 1%R) ≈ v(R)∓ n%·v(R). (14) 3.3. Models to Determine the Parameters of Equation ...
... vm) the following relations are valid: vm = K·Rm −n, m = 1, 2, . . . , N, (15) Minerals 2018, 8, 70 6 of 18 from where we obtain the relation: v1·v2· . . . ·vs vs+1·vs+2· . . . ·v2s = Ks·(R1·R2· . . . ·Rs) −n Ks·(Rs+1·Rs+2· . . . ·R2s) −n , (16) i.e., relation: v1·v2· . . . ·vs vs+1·vs+2· ...Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić. "Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings" in Minerals, Basel : MDPI AG, Basel, Switzerland (2018). https://doi.org/10.3390/min8020070
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An optimal sixteenth order family of methods for solving nonlinear equations and their basins of attraction
Dejan Ćebić, Nebojša Ralević, Marina Marčeta. "An optimal sixteenth order family of methods for solving nonlinear equations and their basins of attraction" in Mathematical Communications (2020)
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A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)
Gordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević (2021)The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were ...Uljni šejl, Aleksinac, organska supstanca, otvoreni i zatvoreni sistem pirolize, biomarkeri, izotopski sastav ugljjenikaGordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević. "A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)" in Marine and Petroleum Geology, Elsevier BV (2021). https://doi.org/10.1016/j.marpetgeo.2021.105383
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Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation
kontinentalna tektonika: kompresija, kontinentalna tektonika: ekstenzija, kontinentalna tektonika: transkurentni i transformni rasedi, pukotine, rasedi, zone snažnih deformacija, kinematika deformacija kore i omotača, teorijska mehanika, modelovanje... two orthogonal stretches with different magnitude, but the same sign. 3 A P P L I C AT I O N : S T R A I N T Y P E F O R RO TAT I N G E L E M E N T S U N D E R D I F F E R E N T T Y P E S O F D E F O R M AT I O N As a first test, we apply our strain type classification to individual square elements that ...
... than missing material) should be directed to the corresponding author for the paper. A P P E N D I X A : S H A P E F U N C T I O N S F O R D E T E R M I N I N G T H E D I S P L A C E M E N T G R A D I E N T We use linear shape functions to determine the displacement gradient ∂u ∂X for quadrilaterals ...
... quadrilateral deformation and that described by F the elements should be chosen sufficiently small. A P P E N D I X B : P O L A R D E C O M P O S I T I O N O F T H E D E F O R M AT I O N G R A D I E N T I N 2 D Analytic solutions exist for the decomposition of the deformation gradient F into the rotation tensor ...Taco Broerse, Nemanja Krstekanić, Cor Kasbergen, Ernst Willingshofer. "Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation" in Geophysical Journal International, Oxford University Press (OUP) (2021). https://doi.org/10.1093/gji/ggab120
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Polyhedral characteristics of the cosalite-type crystal structures
Sabina Kovač, Predrag Dabić, Aleksandar Kremenović, Aleksandar Pačevski, Ljiljana Karanović, Marko V. Rodić, Martina Tribus (2019)Sabina Kovač, Predrag Dabić, Aleksandar Kremenović, Aleksandar Pačevski, Ljiljana Karanović, Marko V. Rodić, Martina Tribus. "Polyhedral characteristics of the cosalite-type crystal structures" in The Canadian Mineralogist, Mineralogical Association of Canada (2019). https://doi.org/10.3749/canmin.1900017
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Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal
Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)... absence of n-alk-1-enes in lignite EOM (Figure S1a); CPI—carbon preference index determined for distribution of n-alkanes C23-C33, CPI = 1/2 × [Σodd(n-C23 − n-C33)/Σeven(n-C22 − n-C32) + Σodd(n-C23 − n-C33)/Σeven(n-C24 − n-C34)] [66]; n-C15 − n-C20 (%) = (Σ n-C15 − n-C20) x 100/Σ of total (n-C15 − n-C33) ...
... n-C33) n-alkanes; n-C21 − n-C25 (%) = (Σ n-C21 − n-C25) × 100/Σ of total (n-C15 − n-C33) n-alkanes; n-C26 − n-C33 (%) = (Σ n-C26 − n-C33) × 100/Σ of total (n-C15 − n-C33) n-alkanes; Cx designates n-alkane and x represents total number of carbon atoms; Σn-alk-1-enes/Σn-alkanes ratio is calculated from total ...
... products obtained in open system pyrolysis. Sample Σn-alk-1-enes/Σn- alkanes CPI n-C15 − n-C20 (%) n-C21 − n-C25 (%) n-C26 − n-C33 (%) n-C17/n-C27 Lignite EOM N.D. 4.61 1 17 82 0.003 Lignite 400 0.38 1.12 23 49 28 0.14 Lignite 450 0.41 1.08 24 45 31 0.26 Lignite 500 0.64 1.05 24 48 28 0.29 HDPE ...Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović. "Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal" in Polymers, MDPI AG (2021). https://doi.org/10.3390/polym13050759
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On the compatibility of lexical resources for NooJ
Lexical resources for many languages are provided for the NooJ linguistic development environment. Meta-data descriptions of morphosyntactic and semantic properties of these languages and their resources are a mandatory part of each language module. In this paper we analyze how well the meta-data actually describe resources for a chosen subset of languages and to what extent are they compatible across languages to support multilingual processing. We show that there is place for improvement in both directions.... PL Pl S+p mo+mr+mz+f+n Hr S+p m+f+n Bg S+p m+f+n Sr S+p+w m+f+n Table 2. Analysis of *.def metadata: ADJECTIVES Nb Gender Pers Tense/ Mood Fr S+p m+f 1+2+3 INF+G+PP+PR+IP+S+C+I+PS+SI+F En S+p 1+2+3 G+INF+PP+PR+PT Hu E+t 1+2+3 K+M+F+P Pl S+p mo+mr+ mz+f+n 1+2+3 F+G+H+J+K+P+Q+S+T+U+Z ...
... F+G+H+J+K+P+Q+S+T+U+Z Hr INF+INFk+PR+PRk+PRd+IMP+AO+AO2+PDR+PDT+IMT+GPS+GP P+s+p+1+2+3+m+f+n+np+cp+sp Bg s+p+0+d+h+l+o+v+c+f+m+n+y+z+i+a+t+1+2+3+b+w+x+A+B+C+K+ P+F+M+N+R+E+D+I+Y+Z+X+W+Q Sr m+f+n+1+2+3+4+5+6+7+s+p+w+v+q+g+i+a+b+c+d+k+W+P+A+I+Y +G+T+F+S+X+x+y+z+h Table 4. Analysis of *.def ...
... features or values of these properties. These codes, such as N for nouns, Top for toponyms, Hyd for hydronyms, can be assigned to lexical entries and subsequently used in NooJ queries, e.g. <N+Top> for selecting nouns representing toponyms or <N+Top-Hyd>, for nouns representing toponyms that are not ...Ranka Stanković, Miloš Utvić, Duško Vitas, Cvetana Krstev, Ivan Obradović. "On the compatibility of lexical resources for NooJ" in Automatic Processing of Various Levels of Linguistic Phenomena: Selected Papers from the 2011 International Nooj Conference, Cambridge Scholars Publishing (2012): 96-108
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Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure
Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica (2023)... in Skopje, R. N. Macedonia Members: Assoc. Prof. Dr. Vojo Jovanov, Faculty of Technology and Metallurgy, Ss. Cyril and Methodius University in Skopje, R. N. Macedonia Iva Dimitrievska, MSc, Faculty of Technology and Metallurgy, Ss. Cyril and Methodius University in Skopje, R. N. Macedonia Marija ...
... Metallurgy, Ss. Cyril and Methodius University in Skopje, R. N. Macedonia Members: Prof. Dr. Trajče Stafilov, Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University in Skopje, R. N. Macedonia Prof. Dr. Viktor Stefov, Institute of Chemistry, Faculty ...
... Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University in Skopje, R. N. Macedonia Prof. Dr. Blazo Boev, Faculty of Natural and Technical Sciences, Goce Delčev University, Štip, R. N. Macedonia Prof. Dr. Panče Naumov, Division of Science and Mathematics, New York University ...Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica. "Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure" in Book of Abstracts / 26th Congress of SCTM with international participation, 20-23 September 2023, Ohrid, R. Macedonia, Skopje : Society of Chemists and Technologists of Macedonia (2023)
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Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja
Hidraulični bageri primenjuju se u različitim oblastima privrede a najzastupljeniji su u građevinarstvu i rudarstvu. Na površinskim kopovima sa kontinualnim sistemima, klasifikuju kao pomoćna mehanizacija a na površinskim kopovima sa diskontinualnim sistemima, kao osnovna mehanizacija. Kako je u oba slučaja njihova primena neizostavna, važno je izvršiti adekvatnu analizu postojećih podataka, u cilju optimizacije izbora tipa hidrauličnog bagera u odnosu na uslove rada datog površinskog kopa. U radu su opisane različite višekriterijumske metode koje su korišćene za analizu hidrauličnih bagera. ...... se formira matrica M čijim se računanjem dobijaju vrednosti preferencija. n n i i 1 1j j 1 1,..., j j W W W i n W W (6) 1 1 1 2 1 n 11 12 1n 1 1 2 2 2 n 21 22 2n n 1 n 2 n n n1 n2 nn / / ... / ... / / ... / ... ... ... ... ... ... ... ... ... / / ...
... METALURGIJA 70 (2019) 3 max( ) , ( 1) n CI n (8) max i 1 1 n in (9) , CI CR RI (10) gde je: λmax maksimalna vrednost izračunate matrice a RI slučajni indeks konzistentnosti koji zavisi od broja analiziranih objekata n. Uslov konzistentnosti je da vrednost CR ...
... ,..., ...,ij ij j n MAX MIN A v j K i v j K v v v v i i (20) ' '' 1 2| | , ,..., ...,ij ij j n MIN MAX A v j K i v j K v v v v i i (21) 2 1 ( ) n ij j j Si v v (22) 2 1 ( ) n ij j j Si v v ...Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Filip Miletić, Ivan Janković. "Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja" in Tehnika, Centre for Evaluation in Education and Science (CEON/CEES) (2019). https://doi.org/10.5937/tehnika1903369D
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Primjena magnetometrijskih ispitivanja na arheološkom lokalitetu Nedeljkova humka
... nošenja instrumenta naziva se još i „cik-cak“ način akvizicije. 27 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 p e Drugi način akvizicije, paralelni način, od gore opisanog razlikuje ...
... terena, ukupno je izmje- reno 11689 vrijednosti vertikalnog gra- dijenta geomagnetskog polja. 28 C u r re n t i n t e rd i s c i p l i n a r y s t u d i e s i n t e c h n o l o g y i n t h e a rc h a e o l o g y o f t h e s o u t h - e a s t E u ro p e Magnetometrijska je istraživa- nja ...
... formuli: gdje su: Δk – razlika magnetske susceptibilnosti tijela i okoline, V – zapremina tijela, r – rastojanje između tijela i instrumen- ta i T n – intenzitet normalnog Zemljinog magnetskog polja. Anomalije detektovane gradio- metrom uglavnom leže u prva dva me- tra, u rijetkim slučajevima do ...Mirko Petković, Vesna Cvetkov, Milorad Ignjatović, Dejan Naumov. "Primjena magnetometrijskih ispitivanja na arheološkom lokalitetu Nedeljkova humka" 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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Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations
The Vršac Mts. in NE Serbia represent the key area to investigate structural relations between the Northern Serbo-Macedonian Subunit and Supragetic Unit of the Dacia Mega-Unit. The geodynamic events during the Variscan orogeny in the Late Paleozoic colligated the two units and led to their metamorphic differentiation. The Late Cretaceous extension exhumed the medium-grade Serbo-Macedonian metamorphic rocks and structurally juxtaposed them against the low-grade metamorphosed basement of the Supragetic Unit along an E-dipping shear zone, which outcrops in the ...severna srpsko-makedonska subjedinica, supragetikum, kinematska analiza, multifazna ekstenzionalna deformacija... p e n n in e s A p e n n in e s C a rp a th ia n s C a rp a th ia n s ALCAPAALCAPA Tisza-D acia Tisza-D acia D inarides D inarides A d ria A d ria H e lle n id e s H e lle n id e s Balkan sideBalkan side Rhodope Rhodope deformation fronts suture zones retro-wedges P a n n o ...
... o k Z o n e T i m o k Z o n e S redna G ora S redna G ora Zone Zone S o u t h C a r p a t h i a n s S o u t h C a r p a t h i a n s ZagajicaDepression ZagajicaDepression P an nonian Basin P an nonian Basin S e r b ia n C a r p a t h i a n s S e r b ia n C a r p ...
... o n ia n b a s in P a n n o n ia n b a s in 250 km ³ F ig . 1 b 0 20 4010 km a b F ig . 3 397TECTONIC EVOLUTION OF THE VRŠAC MTS. (NE SERBIA) GEOLOGICA CARPATHICA, 2021, 72, 5, 395–405 plate (Toljić et al. 2018, 2020). This extension resulted in subsidence in the fore-arc and back-arc ...Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić, Marija Ružić, Aleksa Luković . "Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2021). https://doi.org/https://doi.org/10.31577/GeolCarp.72.5.3
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Application of stochastic models for mine planning and coal quality control
... lates total number of layers. There are n layers in the base. One can observe that there is an n-1 layer in the next row, but also that rhombus, and corner shaped layers are paired. So, in all non-base rows of layers, there is: ( ) ( ) ( ) ( ) n n n n n � � � � � 1 2 3 1 1 2 � pairs ...
... pairs of square and corner shaped layers. Then total number of all base and non-base rows is: n n n n n n n � � � �2 1 2 2 2 ( ) (6) The stockpile geometry is given with: length, width, height and slope are also input pa- rameters. The software solution give posibility to define stockpile geometry ...
... shaped layers are paired. So, in all non-base rows of layers, there is: (1-1) +(n—2)+(n—3)4.. 1 =F pairs of square and corner shaped layers. Then total number of all base and non-base rows is: n+ 2iln 2 =nt+n? -—n=n? (6) The stockpile geometry is given with: length, width, height and slope are also ...Dejan Stevanović, Božo Kolonja, Ranka Stanković, Dinko Knežević, Mirjana Banković. "Application of stochastic models for mine planning and coal quality control" in Thermal Science, Belgrade : Vinča Institute of Nuclear Sciences (2014). https://doi.org/10.2298/TSCI130201031S
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Inhibitory effect of platinum and ruthenium bipyridyl complexes on porcine pancreatic phospholipase A2
Tina Kamčeva, Jörg Flemmig, Bojana Damnjanović, Jürgen Arnhold, Aleksandar Mijatović, Marijana Petković (2011)Fosfolipaza pankreasa A2 (PLA2) igra važnu ulogu u ćelijskoj homeostazi kao iu procesu karcinogeneze. Efekti metalo-lekova koji se koriste kao hemoterapeutici na aktivnost ovog enzima nisu poznati. U ovom radu, interakcija između PLA2 svinjskog pankreasa i dva odabrana kompleksa prelaznih metala — tetrahloro(bipiridin) platine(IV) ([PtCl4(bipi)]) i dihloro (bipiridin) rutenijum(III)hlorida ([RuCl2(bipi)2) ]Cl)—proučavana je. Laserska desorpcija/jonizacija uz pomoć matriksa, vremenska masa spektrometrija (MALDI-TOF MS) i fluorescentna spektroskopija korišćeni su za analizu aktivnosti enzima u odsustvu i prisustvu metalnih kompleksa i za ...... Germany. Metallomics Dynamic Article Links www.rsc.org/metallomics PAPER P u b li sh ed o n 1 2 S ep te m b er 2 0 1 1 . D o w n lo ad ed b y N at io n al L ib ra ry o f S er b ia o n 1 9 /1 2 /2 0 1 7 1 5 :3 2 :0 7 . View Article Online / Journal Homepage / Table ...
... Molecular mass/ g mol�1 [RuCl2(bipy)2]Cl 519.8 [PtCl4(bipy)] 493.1 P u b li sh ed o n 1 2 S ep te m b er 2 0 1 1 . D o w n lo ad ed b y N at io n al L ib ra ry o f S er b ia o n 1 9 /1 2 /2 0 1 7 1 5 :3 2 :0 7 . View Article Online Published on 12 September ...
... representative data set from three independent experiments is shown. P u b li sh ed o n 1 2 S ep te m b er 2 0 1 1 . D o w n lo ad ed b y N at io n al L ib ra ry o f S er b ia o n 1 9 /1 2 /2 0 1 7 1 5 :3 2 :0 7 . View Article Online This journal is c The Royal ...Tina Kamčeva, Jörg Flemmig, Bojana Damnjanović, Jürgen Arnhold, Aleksandar Mijatović, Marijana Petković. "Inhibitory effect of platinum and ruthenium bipyridyl complexes on porcine pancreatic phospholipase A2" in Metallomics, Oxford University Press (OUP) (2011). https://doi.org/10.1039/c1mt00088h
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Tehnologija izrade i opremanje magacina eksploziva za potrebe ležišta bakra
Aleksandar Milojević (2024)Nakon radova otvaranja i početka eksploatacije, rudno telo bakra velikih rezervi zahteva i veliku količinu eksploziva da bi se ostvario zacrtan kapacitet. Samim tim, neophodno je izraditi funkcionalan magacin eksploziva koji će biti pristupačan svim horizontima i koji će moći da ispuni celokupni kapacitet svih horizonata. Obzirom da će se u magacinu skladištiti eksploziv, on mora ispunjavati specijalne uslove kako bi skladištenje bilo bezbedno. Neophodno je isprojektovati magacin tako da ispuni sve zahteve po pitanju količine i načina skladištenja eksploziva, ...... | kg/m AIZOJdSyO PUI2I[O3 kg turpunosnq uru:mjuoy| n PAIZOJdSyo PUT2I[O3 16,8 | 45,4 | 15 eurgunosnq urtu[oqpo n PAIZOJdSyo PUT2I[O3 kg 23,8 turburlJOoSnQ uluulo|bZ n PAIZOJdSyo PUT2I[O3 4,8 e u n o s n q utu[oqpo forg tumjosnq) uruooutod [o-ig kom | kom ...
... . 3 e | N N | o I - | l w | 9 V , C n m . > | R E & Ž e | “~ | 5 S z l m t ZI o -| e| || =- > «~ = — ~ s G o l o o e u7:BL=Wt=t=| = |O |O |O e = | w | |6 % = o [5] % = O A R o l o 5 3 8 5 5 8 R = N i S C Z l ...
... mašine, snage motora 256 kW. Definisana količina potrebnog vazduha je: Qa = K· N n,mŠ/min gde su: K – normativ vazduha za mašine sa dvostepenim sagorevanjem (4,08 m*/kW/min), N – snaga motora dizel mašine (256 kW), n — korišćena snaga motora (80 %). Qa = 4,08 · 256 · 0,8 = 835,59 m3/min Qa ...Aleksandar Milojević. Tehnologija izrade i opremanje magacina eksploziva za potrebe ležišta bakra, 2024
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Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit
... will be marked —n meaning that: Av _ ~_n: Ap 5 (4) R Thereby, it can be considered that: Av Av lim „ _, Š =-n _ Which means that is: & =-n 6) R R . . Av AR . NEAR . Equation (5) can be written in the form: — %* — · R whereby integration, it is obtained: v Av AR — ~-n·| —,,respectively: ...
... determine the parameters K and n in many ways, 1.e., models, using the values obtained by experimental measurements [6]. Model 1 – Determining the parameters by applying the least square method. The Least Square Method is mainly used to obtain the parameters K and n which represents a common model ...
... V;s [cm/s] 21.8117 55.3430 55.9536 57.6390 57.9760 59.3234 59.6614 61.8540 64.7174 65.0545 65.3916 75.2014 O | O | < | C N | n | = | | ) | — In table 4, review of reduced distances R , registered rock mass oscillation velocities V, is given as well as the differences ...Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac. "Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit" in 9th International Conference Mining and Environmental protection MEP, 24 – 27 May 2023, Sokobanja, Serbia, Belgrade : University of Belgrade-Faculty of mining and geology (2023)
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Effectiveness Analysis of Different Bucket-wheel Excavators
Coal production in open-pit lignite mines in the Republic of Serbia is performed with continuous work systems. In addition to coal production, the same systems are used for the exploitation of large quantities of overburden. According to the reliability concept, continuous systems are in linear connection. If the failure occurs in one part of the system, that will produce a downtime of the entire system. The initial and most important factor of continuous systems is the bucket-wheel excavator. It ...Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Miloš Tanasijević, Filip Miletić. "Effectiveness Analysis of Different Bucket-wheel Excavators" in 8th International Conference Mining and Environmental Protection, Sokobanja, 22-25 September 2021, University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia (2021)
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Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit
Sanja Bajić, Dragoljub Bajić, Branko Glušćević, Radmila Gaćina. "Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit" in 9th International Conference Mining and Environmental protection MEP, 24 – 27 May 2023, Sokobanja, Serbia , Belgrade : University of Belgrade-Faculty of mining and geology (2023)
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Antioxidant and antimicrobial activity of some tetradentate Schiff bases and their Cu (II) complexes
Aleksandar Mijatović, Milan Nikolić, Snežana Spasić, Aleksandra N. Žerađanin, Kristina Joksimović, Aleksandar Lolić, Rada Baošić (2020)Šifove baze i njihovi Cu(II) kompleksi su poznati po svojoj biološkoj aktivnosti. U ovom radu proučavana je antibakterijska aktivnost protiv gram-negativnih sojeva Escherichia coli, Pseudomonas aeruginosa i Staphilococcus piogenes, kao i Gram-pozitivnih Staphilococcus piogenes i Pseudomonas aeruginosa, zajedno sa antifungalnim dejstvom protiv Musperg strainilusa, A. Takođe, tehnički jednostavni i brzi testovi kao što su ABTS, HORAC i ORAC korišćeni su za ispitivanje antioksidativne aktivnosti kako bi se uporedili dobijeni rezultati sa različitim tipovima testova. Uprkos tome što je princip ...Aleksandar Mijatović, Milan Nikolić, Snežana Spasić, Aleksandra N. Žerađanin, Kristina Joksimović, Aleksandar Lolić, Rada Baošić. "Antioxidant and antimicrobial activity of some tetradentate Schiff bases and their Cu (II) complexes" in XIII Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, University in Banjaluka, Faculty of Technology (2020)
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Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise
Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Mladen R. Nedimović, Juan Pablo Canales, Hélène D. Carton, John C. Mutter, Javier Escartín (2023)Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Mladen R. Nedimović, Juan Pablo Canales, Hélène D. Carton, John C. Mutter, Javier Escartín. "Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise" in Science Advances, American Association for the Advancement of Science (AAAS) (2023). https://doi.org/10.1126/sciadv.adi2698
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Fuzzy stohastički model izbora sistema otvaranja podzemnog rudnika
Saša M. Jovanović (2016-05-16)Investiciono okruženje skopčano sa rudarskom industrijom je veoma svojstveno kada seuporedi sa okruženjima koje susrećemo u tipičnim proizvodnim industrijama. Neke odkarakterisitka rudarstva, koje su često naznačene kao jedinstvene su: visok intenzitetinvesticija, dugi predproizvodni periodi, visok rizik i neobnovljivost resursa.Investiranje u sistem otvaranja rudnika predstavlja dobar primer ireverzibilneinvesticije. Takva investicija zahteva pažljivu analizu, jer nakon njene realizacije ona sene može nadoknaditi bez značajnog gubitka vrednosti. Očigledno je da izbor sistemaotvaranja podzemnog rudnika pripada strateškom planiranju...... koje je jednako n 2 . Poštujući jednačinu (19) slučajni hod u vremenu 2 dat je izrazom: n X n W n W nn 112 (22) Slika br. 20 pokazuje da n Wn 2 može imati 3 različita stanja (različite vrednosti). Prvo stanje je n 2 sa verovatnoćom ...
... povezani 0 – petlja Skup čvorova u mreži (N) i veličina (n): veličina mreže N predstavljena je brojem čvorova n u njoj. Ona korespondira sa brojem redova u matrici rastojanja ili sa brojem kolona, pošto je matrica kvadratnog oblika. Za mrežu veličine n, maksimalan broj mogućih grana za neorjentisanu ...
... broj n, n>0, definišemo slučajni proces u vremenu t 0, ttWn na sledeći način: početna vrednost procesa je Wn(0)=0 prostor između dva uzastopna skoka je jednak n 1 skokovi "gore" i "dole" su jednaki i veličine su n 1 uz istu verovatnoću Drugim rečima ako razmotrimo n nezavisnih ...Saša M. Jovanović. "Fuzzy stohastički model izbora sistema otvaranja podzemnog rudnika" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-05-16)