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Упит dcterms_subject_txt:TE ,,Kostolac B’’

871 items

  • Hyperpycnites within the Devonian-Carboniferous flysch of the Carpatho-Balkanides (Kostadinovica, eastern Serbia)

    Miloš Radonjić (2020)
    This study presents new discoveries of vascular plants and the trace fossil Dictyodora liebeana (GEINITZ) from the Devonian–Carboniferous Kučaj-Zvonce flysch of the Carpatho-Balkanides and the implications of this fossil association for its sedimentary setting. The occurrence of the described plant debris in a deep-marine environment indicates the presence of hyperpycnites within the siliciclastic turbidites exposed at the Kostadinovica locality. The sedimentological data and the characteristics of the fossil material support the proposed model in which the sediment was at ...
    Mississippian flora, Dictyodora liebeana (GEINITZ), hyperpycnites, Kučaj-Zvonce flysch, Carpatho-Balkanides
    ... fin- ing upward sandstone to siltstone beds within unit B occur ir- regularly compared to unit A (beds B18, B20, etc.). The zone of fracturing fades at the about the 8 m mark. Above this level, two medium- to coarse-grained sandstone beds (B23 and B25) stand out compared to adjacent lithologic mem- ...
    ... preservation is similar within units A and B. (b) Plant detritus from unit C. G eo lo g ia C ro a tica Radonjić Miloš: Hyperpycnites within the Devonian-Carboniferous flysch of the Carpatho-Balkanides (Kostadinovica, eastern Serbia) 137 up to 20 cm long (Fig.10a, b). Sides of the crest show distinct ...
    ... less intervals. 3.2. Unit B (interval: 2.10 to ~ 15 m of the column) A gradual change of sedimentary characteristics occurs above the 2.10 m mark of the column and is represented by an increase in thickness of the siltstone intervals which comprise the lower part of unit B. Sedimentary structures ...

  • A WordNet Ontology in Improving Searches of Digital Dialect Dictionary

    Miljana Mladenović, Ranka Stanković, Cvetana Krstev (2017)
    In this paper, we present a method for automatic generation of a digital resource, which connects all indirect synonyms of a dialect term to all indirect synonyms of a corresponding term in the standard language, aiming to improve the search of a digital dialect dictionary. The method uses SWRL rules defined in the Serbian WordNet ontology to identify sets of synonymous words. It also uses e-dictionaries to produce correct lemmas in standard language that users usually employ in searches. ...
    ... through social networks. Another important aspect of the dictionary is that it allows Web users to expand and complementit. Tools were developed to enable search of terms in three ways: (a) search by a term, (b) search by logical queries created over metadata, (c) terms browsing by the first letter. Search ...
    ... c)(?a eg:label ?b)(?c eg:synonym 7?d) (?d eg:label ?e) -> (?b eg:indirectSynonymy 7e)]"; We have carried out several experiments using different lengths of chains of relations taken from the set of five given relations synonym, similar_to, also_see, verb_group, hyponym which enabled us to conclude that ...
    ... s of 4 relations taken 3 at a time) having the form illustrated by the following examples in which a chain is formed of relations similar_to, also_see and synonym. "[rule10:(?a eg:similar_to ?c)(?a eg:label ?b)(?c eg:also_see 7d) (?d eg:synonym ?e)(?e eg:label ?f)->(?b eg:indirectSynonymy ?f)]" "[rule11:( ...

  • Critical disorder and critical magnetic field of the nonequilibrium athermal random-field Ising model in thin systems

    Svetislav Mijatović, Dragutin Jovković, Sanja Janićević, Đorđe Spasojević (2019)
    Изингов модел, критично понашање, танки системи

  • Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material

    Borislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić (2022)
    Pyrophyllite, with the chemical formula Al2Si4O10(OH)2, is a naturally occurring and abundant van der Waals mineral belonging to the group of phyllosilicates. It is very soft, layered crystal used for sculpting and an excellent electrical and thermal insulator aimed for the operation at high pressure and temperature. Here, for the first time, two-dimensional (2D) pyrophyllite obtained by both mechanical and liquid phase exfoliation is presented and investigated at the nanoscale. The layered structure provides low friction coefficient of around ...
    Atomic force microscopy, Insulating properties, Nanofriction and wear, Natural two dimensional materials, Phyllosilicates, Pyrophyllite

  • Процена ризика од загађивања водних ресурса под утицајем напуштених рударских радова на простору Србије

    Nebojša B. Atanacković (2018-08-31)
    Велики број напуштених рударских радова и ограничена средства за рекултивацијуи ремедијацију деградираних простора подстакле су развој метода за издвајањеприоритетних локација на које је потребно усмерити даља истраживања. У датомконтексту, у склопу израде дисертације спроведене су научно-истраживачкеактивности које су за предмет имале анализу утицаја значајнијих напуштенихрударских радова на водне ресурсе на простору Србије јужно од Саве и Дунава.Разматрање предметне проблематике извршено је кроз развој и примену семи-квантитативне методологије за анализу ризика од загађивања површинских иподземних вода на регионалној размери. Примењена ...
    анализа ризика, водни ресурси, водна тела, рудничке воде, рударскиотпад, аналитички хијерархијски процеси, кластер анализа, математичка теоријаатрибута, функције припадности, семи-квантитативне методе
    ... Protection Agency, EPA 100-B-00-002, Washington DC. 173. US EPA (2000b) Abandoned Mine Site Characterization and Cleanup Handbook. U.S. Environmental Protection Agency, EPA 910-B-00-001, Washington DC. 174. US EPA (2007) Application of watershed ecological risk assessment methods to watershed management ...
    ... минерала (Lottermoser 2007). Небојша Б. Атанацковић Докторска дисертација 4 Предмет истраживања у оквиру докторске дисертације представља процена ризика од загађивања површинских и подземних вода под утицајем напуштених рударских радова. За те потребе развијена је методологија за њихову ...
    ... најмања. Небојша Б. Атанацковић Докторска дисертација 228 9. ЗАКЉУЧАК Тежиште дисертације представља сагледавање негативног утицаја напуштених рударских радова на ресурсе површинских и подземних вода, кроз примену концепта анализе ризика. За те потребе развијена је методологија ...

  • Effects of external noise on threshold-induced correlations in ferromagnetic systems

    Dragutin Jovković, Sanja Janićević, Svetislav Mijatović, Lasse Laurson, Đorđe Spasojević (2021)
    Изингов модел, праг детекције, екстерни шум

  • Lower Berriasian ammonites from Dedina (Golubac Mountains, eastern Serbia) and their biostratigraphic implication

    Zdenek Vasícek , Dragoman Rabrenović, Petr Skupien, Barbara Radulović (2023)
    Ammonites, Taxonomy, Lower Berriasian, Getic, Northern Tethys, Serbia
    ... bear mid- ventral notches, which lead to the indication of only a ventral furrow or a spatial type of siphonal furrow (Hoedemaeker et al., 2016, p. 128). Originally, B. (Hegaratella) was a subgenus of the genus Pseudosubplanites (see Nikolov, 1982). However, B. (Hegar- atella) cannot be part of ...
    ... are not developed. According to Frau et al. (2016a), the two species described subsequently here belong to the genus Berriasella. Hegaratella subcalisto (Toucas, 1590) Fig. 4J 1890 Hoplites Calisto d'Orb. sp. 15 Varićtć subcalisto; Toucas, p. 601, pl. 17, fig. 4A, B. 1939 Berriasella subcalisto ...
    ... 35), and U = 8.5 (0.35). B is ca. 6.2 (0.26). There are 21 ribs per half-whorl at Dmax. Remarks. The size of specimens and unclear crossing in to small adult whorls makes unambiguous identification difficult. The dimensional parameters of the Serbian specimens correspond to the holotype when H]|D ...

  • Photocatalytic Activity of the V2O5 Catalyst toward Selected Pharmaceuticals and Their Mixture: Influence of the Molecular Structure on the Efficiency of the Process

    Sanja J. Armaković, Aleksandra Jovanoski Kostić, Andrijana Bilić, Maria M. Savanović, Nataša Tomić, Aleksandar Kremenović, Maja Šćepanović, Mirjana Grujić-Brojčin, Jovana Ćirković, Stevan Armaković (2023)
    Due to the inability of conventional wastewater treatment procedures to remove organic pharmaceutical pollutants, active pharmaceutical components remain in wastewater and even reach tap water. In terms of pharmaceutical pollutants, the scientific community focuses on -blockers due to their extensive (over)usage and moderately high solubility. In this study, the photocatalytic activity of V2O5 was investigated through the degradation of nadolol (NAD), pindolol (PIN), metoprolol (MET), and their mixture under ultraviolet (UV) irradiation in water. For the preparation of V2O5, facile ...
    DFT analysis, metoprolol, nadolol, nanomaterial characterization, photocatalysis, pindolol, β-blocker
    ... G.-B. and S.A.; visualization, S.J.A., A.J.K., A.B., M.M.S., N.T., M.Š., M.G.-B. and S.A.; writing—original draft, SJ.A., AJ.K., A.B., M.M.S., N.T., M.Š., M.G.-B. and S.A.; writing—srevision, SJJ.A., AJJ.K., A.B., M.M.S., N.T., M.Š., M.G.-B., ].Č. and S.A. All authors have read and agreed to the ...
    ... 1) is another medicine from the B-blockers class, which is highly soluble in water and hydrolytically stable, and thanks to that property, is highly bioavailable in the environment [7,8]. Usually, B-blockers are present in the environment in combination with other B-blockers and various organic ...
    ... ž = Fl 1.0 a) b) 0.8 0.8 ——NAD o9.6 0.6 . —-PIN i ? 04 | —-MET ? 0.4 0.2 0.2 0.0 T T T T T U 0.0 . . . || . . 0 5 10 30 60 120 0 5 10 30 60 120 Time (min) Time (min) Figure 12. NAD, PIN, and MET mixture degradation kinetics under UV irradiation: (a) without VOs and (b) with V»Os catalyst ...

  • Osnovi geofizike B - praktikum

    Dejan Vučković (2021)
    geofizika

  • Kvantitativna ocena režima i bilansa podzemnih voda u aluvijonu Velike Morave od Bagrdana do ušća u Dunavu

    Aleksandar Balubdžić (2024)
    Aluvijalni sedimenti velikih reka raspolažu značajnim količinama podzemnih voda, što je zajedno sa površinskim vodama dozvolilo razvoj naselja i ljudskih aktivnosti. Ovaj razvoj uslovljava veće potrebe za vodnim resursima i njihovim kvalitetom. Sa povećanjem eksploatacije podzemnih voda, uticaj iste je značajniji i može da dovede do opadanja nivoa podzemnih voda i pogoršanja kvaliteta. Aluvijon Velike Morave ima značajno rasprostranjenje, usled čega predstavlja važno ležište izdanskih voda sa velikim eksploatacionim mogućnostima. Izradom hidrodinamičkog modela aluvijona Velike Morave od Bagrdana do ...
    režim podzemnih voda, bilans podzemnih voda, intergranularna izdan, hidrodinamički model
    ... (nastavak). Livade |_5_| B-8 89 B-9 89 85,4 B-11 85,4 "Jetoil Serbia' 4. 45 c 46 "Auto-Mikr. t Garevina | e e MI = | - O | o | e | ? < | = o K | |22 [ 94,18 57 OMV 01102 58 Agrarkomerc 60 TE "Morava' IEBS-1/2008 83,5 B-1 80,5 B-2 84 Agroživ A.S.A ...
    ... F3 [ F3 [ B-1I B-12 F3 [ ~ J 89 on MZ" 90 Autocentar NR NIS-BS Lozovik B. B. BPB-I 67,5 B-I B-1 B-4 B-5 B-6 B-7 B-8 B-9 -1 -1 -1 58 94 94 94 94 94 94 94 94 94 94 78 65 75 |7 [-S] Hoover Dam [ % | Technology B-1 65,75 B-2 65,75 ...
    ... 08E-03; Agrarkomerc 1,25E-03 do 1,78-03 Hoover Dam Technology D,27E-03 do 4,30E-03; TE "Morava" 2,50E-03 Iz tabele 6 može da se uoči da su koeficijenti filtracije trećeg: šematizovanog sloja, koji je .. i : -3 i B i sačinjen od šljunkova i peskova, uglavnom oko 3·10” m/s sa određenim izuzetcima ...

  • Poboljšanje geotehničkih uslova izgradnje nasipa upotrebom geosintetika

    Anastasija Radovanović (2024)
    Za potrebe izrade rada na Master akademskim studijama ,,Rudarsko-geološkog fakulteta,,, studijskog programa Geotehnika, pod mentorstvom prof. dr Gordane Hadži-Niković , izvršena je detaljna analiza stabilnosti kosina nasipa na Vranjskoj petlji. Geotehnička istraţivanja i ispitivanja terena izveo je “Zavod za geotehniku iz Instituta za puteve a.d. Beograd”, a investitor je “Javno preduzeće, Putevi Srbije”.Metodološki pristup koji je korišćen za analizu stabilnosti kosina nasipa jeste kabinetsko istraživanje dostavljene dokumentacije i geostatički proračuni analize stabilnosti kosina nasipa, korišćenjem savremenih softverskih alata.Krajnji zaključak izvedenih istraţivanja je da ...
    tlo, nasip, analiza stabilnosti, faktor sigurnosti, geosintetici
    ... unutrašnjeg trenja za i-tu lamelu, – _ Ci — kohezija duž klizne površine za i-tu lamelu, – Gqi- ugao nagiba i-te lamele u odnosu na horizontalu, – _ Uuj— porni pritisak za i-tu lameli – T;j- smičuća sila koja se suprotstavlja klizanju za i-tu lamelu, – _ Nj- normalna sila za i-tu lamelu, – _ Uj- ...
    ... dužina klizne površine za i-tu lamelu /; jednaka: I COSQ; E Žž icili + }i=ı Nitang; i Ž W sina; FSZWŽ[CLI) + (W; — ulb)tanqa]— tan qajtan Š”'z) maj = COS đi (1 + E, Gdje je: -– W,;- težina i-te lamele, – l— dužina i-te lamele, - ma;- koeficijent za i-tu lamelu, – qj- ugao unutrašnjeg ...
    ... = 22.77kPa - T = oSy = 22.77 •* 1m = 22.77 kN/m! T} 280 T .= = = 26,67 kN/mt ab— RE·E, 71 /m T< Ta,b (uslov ispunjen) Stabilnost u pogleđu izvlačenja armature iz stabilne mase tla: Ta,b*Es ___ 26.67*1,5 L, = = ——— e 2*O*tE0sg | 2*74.16*0.39 = 0.7m (Dužina L. ne treba da bude manja od ...

  • Low-temperature phase transition and magnetic properties of K3YbSi2O7

    Predrag Dabić, Volker Kahlenberg, Biljana Krüger, Marko Rodić, Sabina Kovač, Jovan Blanuša, Zvonko Jagličić, Ljiljana Karanović, Václav Petříček, Aleksandar Kremenović (2021)
    alkalni silikati elemenata retkih zemalja, fazni prelazi, magnetne karakteristike, razdvajanje kristalnog polja, silikati lantanica
    ... specific shift leads to a deviation of the Si—O2—Si angle away from 180�. The �5 +-triggered movements of O1_2 are located in the yz plane, whereas O1 has displacement components along all three directions. However, again, the largest contri- bution is parallel to the b axis. In order to obtain a better ...
    ... specific shift leads to a deviation of the Si—~O2—Si angle away from 180°. The I’;*-triggered movements of O1_2 are located in the yz plane, whereas O1 has displacement components along all three directions. However, again, the largest contri- bution is parallel to the b axis. In order to obtain a better ...
    ... K1 is very close to its valence state of +1 (Table 4). Figure 1 Sequence of alternating octahedral and sorosilicate layers in (a) hexagonal 6-K3YbSi,07 and (b) orthorhombic f’-K3YbSi,O7. The pseudo-kagome pattern 3.6.3.6 produced by the terminal O atoms in (c) hexagonal structure of B-K3;YbSi,O7 and ...

  • Kristalne strukture Cs2HoSi4O10F i Cs2TmSi4O10F

    Predrag Dabić, Sabina Kovač, Aleksandar Kremenović (2021)
    ... cell parameters: a = 22.3809 (7), b = 8.8686 (3), c = 11.9827 (4) V = 2378.41 (14) 3, Z = 8 (for Cs2HoSi4O10F compound), a = 22.3447 (5), b = 8.8131 (2), c = 11.9594 (3) V = 2355.12 (10) 3, Z = 8 (for Cs2TmSi4O10F compound). The investigated compounds are isotypic to Cs2YSi4O10F [1] and Cs2ErSi4O10F ...
    ... via common fluorine apical anions. Figure 1. Projection of the structure of Cs2REESi4O10F parallel to the direc- tion [010] represented by polyhedra. 1 M.C. T. Schleid, Z. Naturforsch. B., 64 (2009) 1329 1338. 2 P. Dab V. Kahlenberg, D. Schmidmair, A. , P. Vuli , Z. Krist.-Cryst. Mater. ...
    ... monokristalima. Dobijena jedinjenja su i r prostornoj grupi Pnma sa slede elija: a = 22,3809 (7), b = 8,8686 (3), c = 11,9827 (4) , V = 2378,41 (14) 3, Z = 8 (za jedinjenje Cs2HoSi4O10F), a = 22,3447 (5), b = 8,8131 (2), c = 11,9594 (3) , V = 2355,12 (10) 3, Z = 8 (za jedinjenje Cs2TmSi4O10F). Ispitivana ...

  • Synthesis and characterization of nanostructured Ca0.9Er0.1MnO3

    Tijana B. Vlašković, Bojana Laban, Maja Milošević, Maria Čebela, Vladimir Dodevski, Milena Rosić (2023)
    ... Ca0.9Er0.1MnO3 Tijana B. Vlašković, Bojana Laban, Maja Milošević, Maria Čebela, Vladimir Dodevski, Milena Rosić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Synthesis and characterization of nanostructured Ca0.9Er0.1MnO3 | Tijana B. Vlašković, Bojana Laban ...
    ... Development and Inovation of Republic of Serbia 59. Savetovanje SHD NH-12 Sinteza i karakterizacija nanostrukturnog Ca.Er,..,MnO. Tijana B. Vlašković!, Bojana Laban!, Maja Milošević?, Maria Čebela?, Vladimir Dodevski”, Milena Rosić? _ Univerzitet u Prištini sa privremenim sedištem u Kosovskoj ...
    ... infracrvena spektroskopija (FTIR) i skenirajuća elektronska mikroskopija (SEM). Synthesis and characterization of nanostructured Ca„Er.,MnO, Tijana B. Vlašković-, Bojana Laban!, Maja Milošević?, Maria Čebelaš, Vladimir Dodevski*, Milena Rosić* _ University of Priština in Kosovska Mitrovica, Faculty ...

  • Differently shaped nanocrystalline (Fe, Y)3O4 and its adsorption efficiency toward inorganic arsenic species

    Biljana P Dojčinović, Boštjan Jančar, Lotfi Bessais, Aleksandar Kremenović, Nataša P Jović-Jovičić, Predrag T Banković, Dalibor M Stanković, Miloš Ognjanović, Bratislav V Antić (2019)
    Herein we report effects of partial substitution of Fe3+ by Y3+ in magnetite (Fe3O4) on morphology and inorganic arsenic species adsorption efficiency of the Fe3−xYxO4 nanoparticles formed. The series of Fe3−xYxO4 (x=0.00, 0.042 and 0.084, labeled as Y00, Y05 and Y10, respectively) was synthesized using co-precipitation followed by microwave-hydrothermal treatment (MW) at 200°C. With increase of yttrium content(xvalue), both the morphological inhomogeneity of the samples and the fraction of spinel nanorods as compared to spinel pseudospherical particles increased. By ...
    microstructure, microwave-hydrothermal synthesis, adsorption, magnetic nanoparticles, arsenic

  • Asbestos-Based Pottery from Corsica: The First Fiber-Reinforced Ceramic Matrix Composite

    Philippe Colomban, Aleksandar Kremenović (2020)
    Asbestos-containing pottery shards collected in the northeast of Corsica (Cap Corse) and dating from the 19th century, or earlier, have been analyzed by SEM-EDS, XRPD, FTIR and Raman microspectroscopy. Blue (crocidolite) and white (chrysotile) asbestos fiber bundles are observed in cross-sections. Most of the asbestos is partly or totally dehydroxylated, and some transformation to forsterite is observed to occur, indicative of a firing above 800 C. Examination of freshly fractured pieces shows a nonbrittle fracture with fiber pull-out, consistent with ...
    asbestos, CMC, Corsica, fiber, pottery
    ... recorded on some spots of sample a (see Figure 1). Materials 2020, 13, 3597 16 of 18 Lo g, I nt en si ty B Z < O = O j - R a m a n In te ns it y Fe K /\ Ti Mn Ni 0 0 5000 10000 O 250 500 750 1000 1250 1500 Energy / eV Wavenumber / cm” Figure A4. Representative EDS ...
    ... right-hand side of sample d (close to the scale) and the top left-hand side of sample b (above the o mark). The beautiful and flat sections obtained by sawing, with a diamond saw testify to the good mechanical resistance of the objects, in accordance with the time necessary to saw the shards. This good ...
    ... Ra ma n In te ns it y 3000 3200 3400 3600 3800 Wavenumber / cm” a376 Ra ma n In te ns it y 7 3000 3200 3400 3600 3800 607 500 1000 1500 >~ P 2165 w | |M + = c 2504 2613 2680 6 2840 E o Ć ioo 2000 2500 3000 3000 3200 3400 3600 3800 Wavenumber / cm-1 (B) Figure 9 ...

  • Геолошке карактеристике лежишта ватросталних глина „Лазине“

    Давид Божић (2024)
    Овај дипломски рад бави се геолошким истраживањем и анализом лежишта ватросталних глина Лазине, које се налази у Србији. Ватросталне глине имају изузетно важну примену у индустрији, нарочито у производњи ватросталних материјала, као што су опеке и облоге које издржавају високе температуре. Циљ рада био је да се испита квалитативни састав и карактеристике глина и лежишта ,,Лазин'' процени економски значај лежишта, као и да се дефинишу потенцијали за експлоатацију и будућу производњу. Анализирана су геолошка својства терена, укључујући минералошки састав, ...
    ватростална глина, економски значај, Лазине, минерални састав
    ... ApananoBaukor OaceHa, uHHe BHCOKO TpaHc()opMucaHu rpaHHTu. OBH rpaHHTH Cy ueCTO H3MCMbeHH JIO Te McPe Jla HX je Ha MaKDOCKOHCKOM HHBOy TEHIKO pa3HHKOBaTH OJL TJIHHCHO-IHeIIMaHHX cennMeHara nexummra'(Cauh B., 2003). Ha ocHoBy paHuHjMx HcTpaxHBaba crpoBeneHMx o 1948. no 1954. romuHe, 3aKJbyucHO je ...
    ... OJI peKe IIemrraH, JIOK Je Jy)KHH JICO JIOXKMBJbaBaO H3JUH3aHbeC KpO3 HaH3McHHuHa KpeTaba. To je pe3ayanrripajto bopMupatbeM morimaBHe paBHHite Koja je Ouua nornitaBJbeHa MHOLICHCKHM BOJTIaAMa. !? Cumuh B., (2003), Beorpaji, crp. 32-34. 17 Cnuka5. IHpukas npocmupatba IlanouHcko2 Mopa moko MuoueHa ...
    ... (Cmuh B., 2003). Teonontko anupame 3oHe ca BeEOMa pa3HOJIHKHM TpaHHTHMM MaTCpHJaJIOM y CaCTaBy MHJIH HOPpeKJy udecTO jc OCTAaBJbaJIO HCTpaxkHBaue HeCHTypHHM JTla J je MarepHjaJi OHo MarHuHa CTeHa HJIH Ce HIOMepHO H JIČIIOHOBaO y OJI3HHH, Ha HBHIMH MaTHuHe cTeHe. V OymoTHHaMa b5- 3, B-4, b-7 u 5-8 ...

  • Bezbednosna rastojanja u jamskim magacinima eksploziva u domaćoj i međunarodnoj praksi

    Luka Crnogorac, Ognjen Popović, Toma Jovičić, Veljko Lapčević (2024)
    Projektovanje jamskih magacina eksploziva predstavlja složen inženjerski problem. Sama namena jamskih magacina zahteva ispunjenost niza uslova koji se odnose na bezbedno pozicioniranje magacina, ispunjenost uslova ventilacije, pristupa, rukovođenja magacinom, načina skladištenja eksplozivnih sredstava, protivpožarne zaštite, elektro zaštite itd. Veoma važan parametar prilikom projektovanja jamskih magacina eksplozivnih sredstava predstavlja minimalno sigurnosno rastojanje između susednih komora u kojima su smeštena eksplozivna sredstva u cilju sprečavanja potencijalnog neželjenog dejstva vazdušnog udarnog talasa, razornog dejstva eksplozije i seizmičkog dejstva eksplozije. U ovom radu su prikazani ...
    jamski magacini, eksplozivi, bezbednosna rastojanja
    ... [11]ConMeH B. K., Kyry3oB B. H., MapbycoB A. JL, OkBucr B. B., TokapeHko A. B. (2012) CešHcuueckas BesonacHocTb IIpH B3pbiBHbix PaGorax, FopHas Kaura, Moskva, ISBN 978-5-98672-306-8 [12]Kyry3oB B. H., KovameHko B. H., HockoB B. O., BoOpbimeB A. A., KptokoB T. M., TapacesHko B. II, TaOmpaxMaHoB C. B., TopOoHoc ...
    ... eksploziva i komore ide od 1:3,3 do 1:3,5. U praksi ovaj odnos je gotovo uvek veći i retko je kad ispod 1:4, te se može računati da je svega 20 do 25 % preseka komore ispunjeno eksplozivom. Pored toga što se eksplozivno punjenje u magacinu ne može poistovetiti sa minskim punjenjem, i već navedenec razlike ...
    ... for Disarmament Affairs (ONODA), New York, USA KyryaonB B. H., T anajokuii O. M., JlaBbitoB C. A., BaiinrreH B. H., 3enaH B. M. (1977) BesaonacHocTb BHa3ppiBHbix Pa6or B IIpoMsimm:ue-HHocru, Nedra, Moskva [10]BenaH B. A., Kyry3oB B. H., TaHonobckMuHM M. MH., OBepuecHKo M. H. (2016) TexHomorus ...

  • Preparation, synthesis and characterization of nanometric Ca0.9Er0.1MnO3

    Tijana B. Vlašković, Bojana Laban, Maja Milošević, Maria Čebela, Vladimir Dodevski, Milena Rosić (2023)
    ... 9Er0.1MnO3 Tijana B. Vlašković, Bojana Laban, Maja Milošević, Maria Čebela, Vladimir Dodevski, Milena Rosić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Preparation, synthesis and characterization of nanometric Ca0.9Er0.1MnO3 | Tijana B. Vlašković, Bojana ...
    ... Ceramics, CYSC-2023 Novi Sad, Serbia, October 11-14, 2023 OA-29 PREPARATION, SYNTHESIS AND CHARACTERIZA TION OF NANOME'TRIC Ca»pSEro.. MnO; Tijana B. Vlašković!, Bojana Laban', Maja Milošević”, Maria Čebela?, Vladimir Dodevski?, Milena Rosić? !Faculty of Sciences and Mathematics, University of ...
    ... synthesis and characterization of Cao.Ero,,MnOx perovskite powder using the sucrose nitrate procedure (SNP) technique. The following substances were used to obtain this complex perovskite: sucrose CoH>»O,,, Which has a dual role (complexant and fuel), and metal nitrates were used as oxidants - calcium ...

  • Specifičnosti fundiranja u lesnim naslagama – objekat Poreska uprava Zemun

    Anja Dević (2024)
    U ovom završnom radu prikazani su literaturni podaci koji se odnose na geotehničke karakteristike terena izgrađenih od lesa na primeru šireg istražnog prostora, tzv. Zemunskog lesnog platoa, kao i rezultati detaljnih geotehničkih istraživanja na lokaciji objekta Poreske uprave Zemun. U prvom delu rada prikazani su uslovi nastanka karakteristične makroporozne strukture lesa i njen uticaj na fizičko-mehaničke karakteristike i stabilnost terena izgrađenih od lesa. Na osnovu analize i interpretacije rezultata detaljnih geotehničkih istraživanja na lokaciji objekta Poreske uprave Zemun prikazane su ...
    struktura lesa,stišljivost, nosivost, sleganje, plitko fundiranje i duboko fundiranje
    ... opterećenjem dolazi do velikih sleganja. Zbog toga je predloženo povećanje dubine fundiranja ili fundiranje na šipovima. Ključne reči: struktura lesa, stišljivost, nosivost, sleganje, plitko fundiranje i duboko fundiranje. Sadržaj: HBLO 0 ) b AAAAAA AAARAAA || 2.GEOTEHNIČKE KARAKTERISTIKE ...
    ... temelje kvadratnog, pravouganog i kružnog oblika. Osim toga, može se primeniti kako za vertikalno tako i za zakošeno opterećenje. Granično opterećenje plitikih temelja određuje se na osnovu Jednačine: qf=c:·Nc:sc·:dc·ic+y· Df·: Nq:sq:dq:iq+0.5·y· B: Ny:sy:dy' iy Gde je: qr — granično opterećenje ...
    ... =0m: L/2 139/2 ” 69.5 = —— = —_ =6.95 B/2 - 20/2 10 Ž _ O _ o , m =0,5 = — = > = · B/2 10 ž1 Aozi = 4* q * l = +*52*0.25 = 52 kPa Za tačku A na dubini z, = 1.0 m: L/2 139/2 ~ 69.5 B/2 „20/2 ~ 10 = 6.95 Z, 16 —— = — =0.16 — Iz, = 0.248 B/2 10 Aoza = 4*qdn * la = 4*52 * 0.248 = ...