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Упит dcterms_creator_txt:John C. Mutter

767 items

  • Geochronological and geochemical studies on crystalline rocks from the central Serbo-Macedonian massif with implications on its pre-Alpine evolution

    Antić Milorad, Peytcheva Irena, Von Quadt Albrecht, Kounov Alexandre, Trivić Branislav, Serafimovski Todor, Tasev Goran, Gerdjikov Ianko (2014)

  • Interactions of Copper(II) Complexes of some Schiff base ligands with calf thymus DNA and bovine serum albumin

    Angelina Petrović, Aleksandar Mijatović, Rada Baošić, Jovana Bogojeski (2018)
    Joni prelaznih metala u kombinaciji sa različitim ligandima nude veliki broj mogućnosti za ispitivanje potencijalnih bioaktivnosti. Među jonima prelaznih metala, bakar je poznat kao endogeni metal za ljude, sa karakterističnim biološkim redoks aktivnostima i relativno jakim afinitetom za nukleobaze. Kompleksi bakra ispoljavaju svoju antitumornu aktivnost na nekoliko različitih načina, generišu veliku količinu ROS, što uzrokuje oksidativno oštećenje mitohondrija i biomakromolekula. Nađeno je da kompleksi bakra(II) imaju umeren do dobar afinitet vezivanja sa DNK, uglavnom putem interkalacije.

  • Geology of the southern part of the Sava-Vardar zone: new constraints from the Klepa Mts.

    Dejan Prelević, Ana Mladenović, Violeta Gajić, Milena Dunčić, Blažo Boev (2024)
    Tethys closure, Scaglia Rossa, intracontinental basalts
    ... Kopping et al. [4] differentiate two groups of deformations based on twinned calcite: older deformations indicating temperatures >300% and locally >500%C, and a younger group observed within a ~10 km wide zone around the Klepa volcanic rocks, ending with ~100 m wide major shear belts. Thc direct contact ...
    ... the final stage of Tethys closure in the Balkans. Terra Nova, 29(3), 145-153. 2. Van Hinsbergen, D. J., Torsvik, T. H., Schmid, S. M., Matenco, L. C., Maffione, M., Vissers, R. L., Gurer, D., Spakman, W. (2020). Orogenic architecture of the Mediterranean region and kinematic reconstruction of ...

  • Development of Open Educational Resources (OER) for Natural Language Processing

    Cvetana Krstev, Biljana Lazić, Ranka Stanković, Giovanni Schiuma, Miladin Kotorčević (2015)
    In this paper we present the development of an online course at the edX BAEKTEL platform named “Lexical Recognition in the Natural Language Processing (NLP)”. It is based on the course of the same name for PhD studies at the University of Belgrade, Faculty of Philology. There are not many courses in Computational Linguistics (CL) on OER platforms, and there is none in Serbian either for CL or NLP. We have developed this course in order to improve this ...
    E-Learning, Open Educational Resources, Computational Linguistics, Lexical Resources, edX
    ... 1801-1812. [2] Jackson, P. and I. Moulinier, Natural Language Processing for Online Applications: Text Retrieval, Extraction and Categorization. 2002: John Benjamins Publishing Co. [3] Schubert, L., Computational Linguistics, in The Stanford Encyclopedia of Philosophy, E.N. Zalta, Editor. 2015, ...
    ... language. The ‘natural’ epithet is meant to distinguish human speech and writing from formal languages, such as computer languages e.g. Java, C#, C++, etc. [2] Interest in NLP began in 1950 when Alan Turing published his paper entitled “Computing Machinery and intelligence,” [4] but in ...
    ... Lažetić, et al. 2014, Belgrade: Faculty of Mathematics. [6], 135. [8] Krstev, C. and A. Trtovac, Teaching Multimedia Documents to LIS Students. The Journal of Academic Librarianship, 2014. 40(2): p. 152-162. [9] Krstev, C., Information Science Curriculum at the Undergraduate Studies of Library and ...

  • Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia

    Nikita Bragin, Liubov Bragina, Nevenka Đerić, Nataša Gerzina-Spajić (2019)
    Paleontology, Stratigraphy, Economic Geology, Geochemistry and Petrology, Geology, Geophysics, Geotechnical Engineering and Engineering Geology
    ... River, in the vicinity of Bistrica Village in SW Serbia. Radiolarian assemblages are characterized by such species as Capnodoce anapetes DE WEVER, C. sarisa DE WEvER, Sarla hadrecaena (DE WEVER), Praehexasaturnalis tenuispinosus (DONOFRIO & MosTLER), Žiphothecaellla longa (KozuR & Mock). According ...
    ... HCTpa)XkMBaHhba TFOpH0O- TpHjacKHX CHJIHIIHjCKHX CenHMeHaTa. Y panHoJIapHjcKHM acolHjanHjaMa R\OMHHHpajy curenehe Bpcre: Capnodoce anapetes DE WEVER, C. sarisa DE WEVER, Sarla hadrecaena (DE WeEvEr), Praehexasaturnalis tenuispinosus (DONOFRIO & MosTLEr), Xiphothecaellla longa (KozuR & Mock). Ha ocHoBy ...
    ... stones on the left side of Lim River valley; B, outcrops of the Triassic limestones on the right side of Lim River valley; note intensive folding; C, thin-bedded limestones with single bed of thick-bedded massive limestone; D, chert nodules in limestones; large pink nodule in the lower part of photo; ...

  • Geodynamics of basins above subducted slabs: An integrated modelling study of tectonics, sedimentation, and magmatism in the Timok Magmatic Complex

    Uros Stojadinovic, Marinko Toljic, Branislav Trivic, Radoje Pantovic, Danica Sreckovic-Batocanin, Nemanja Krstekanic, Bojan Kostic, Milos Velojic, Jelena Stefanovic, Nikola Randjelovic, Maja Males (2024)
    Timok Magmatic Complex, Neotethys subduction, basin geodynamics, analogue modelling

  • Characterization of biochar surface functional groups

    Marija Ilić, Vesna Pavelkić, Aleksandar Lolić, Branko Leković (2021)
    In this work, biochar originating from paper fibres was examined. Biochar was prepared via pyrolysis method at 550°C. Oxygen-containing functional groups on biochar surface were determined. The surface functional groups of biochar were analysed by Fourier transform infrared spectroscopy. The amount of oxygen-containing functional groups was performed with Boehm titration. The total acidity of biochar was mostly attributed to carboxylic and lactonic groups.
    biochar, surface functional groups, spectroscopy

  • Some examples of interactions between certain rare earth elements and soil

    Zlatko Nikolovski, Jelena Isailović, Dejan Jeremić, Sabina Kovač, Ilija Brčeski (2021)
    Freundlich adsorption isotherm, sequential extraction, metallic ions, ICP-OES
    ... represented only by the acid solution of hydrogen peroxide. The glasses were covered by watch glass and were heated for two hours at water bath at 85 ˚C. Thereafter another 6 mL of acidified hydroxide peroxide solution was added to each glass, and heated for another three hours with occasional stirring ...
    ... presence in tested samples. Type of soil Humus Clay Sand Quartz (Q) + + + Plagioclase (Pl) + + + Feldspar (F) + + + Amphibole (Am) + + + Calcite (C) + Dolomite (D) + Illite / Mica (I/M) + + + Chlorite (Ch) + + Vermiculite (V) + Based on the values obtained from Table II, it was possible ...
    ... been provided in Table V. Fig.2. Graphic representation of Freundlich adsorption isotherms for lanthanum ions on clay (a) and sand soil (c), for gadolinium ions on clay (b) and sand soil (d) and for erbium ions on sand soil (e) Acce pted M anuscr ipt 8 NIKOLOVSKI et al. Table ...

  • Петролошке карактеристике тријаских карбоната у околини Толића (Мионица)

    Михаило Вујашевић (2024)
    У тријаским теренима у околини Толића код Мионице извршено је узорковање карбонатних стена које су предмет овог рада. На одабраним узорцима утврђене су петролошке карактеристике. Главни задатак овог завршног рада представља испитивање минералошких и петрографских карактеристика карбонатних стена, применом оптичке анализе, рендгенске дифракције и калциметрије. Макроскопском детерминацијом и применом Данхамове класификације испитивани узорци су сврстани у кречњаке калкаренитског до калклутитског склопа, односно mudstone, packestone и grainstone типа. Микроскопским прегледом кречњака и применом Фолкове класификације утврђен је њихов састав и ...
    тријаски карбонати, петрографске карактеристике, класификације кречњака
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    ... JIy)KHHOM HMAaJy Behu HpoOJIOpHOCT, Ia TaKO HpHJIHKOM Koputnihema peHjireHcKor 3pauePba moTpeOHo je ripujipxKXaBarTH ce rIiponHcaHHx Mepa Ha pajiy, C O03HpoM a X-3panum Mory OHTH H3y3eTHO IHITETHH TIO JPyJICKO 3/1paBJbC (IIaBkoB H mp., 2019). AHajmaHpaHH Cy CHPpaHIeHH Be3aHH y3OpnM Ca BHIHC BpcTa ...
    ... _ OHCer HCHHTHBaMba: 2-65? 20 – _ KopaK:0,01* 20 – | BpeMeHcKa KOHcTaHrTa: 10 */min Cuuka 3. PepnireHcku a(bpakroverap „Rigaku SmartLab” (Ooro C. Konau). /loOujenu monmamm 3a mnooxaje JH(O)bpaKHMOHMX MaKcCHMyMa 20(), BpeJIHOCTH MClyIUbOCHHX pacrojaba 3a cBc pedQjmekcuje, Kao H ojroBapajyhu ...

  • Razvoj integralnog modela za optimizaciju diskontinualnog sistema proizvodnje na površinskim kopovima nemetala

    Miodrag Čelebić (2024)
    Izbor optimalne mehanizacije u diskontinualnom sistemu transporta je jedna od najvažnijih odluka koju treba donijeti prilikom projektovanja površinskih kopova. Pri izboru optimalne mehanizacije, uticaj ima veliki broj faktora, kako prirodnih – geoloških i ekoloških, tako i tehničkih, ekonomskih i socijanih. Neki od njih se mogu izraziti numerički, u određenim mijernim jedinicama, a neki opisno, lingvističkim varijablama, shodno uslovima koji vladaju na rudnim ležištima, a koje karakterišu visok stepen neizvjesnosti i neodređenosti kako prilikom istraživanja, tako i tokom procesa eksploatacije ...
    izbor mehanizacije, tehnologija eksploatacije, diskontinualani sistem, ekspertsko odlučivanje, lingvističke varijable, MCDM, FAHP

  • Petrološke karakteristike dunavskog šljunka (Beograd – Zemun)

    Miloš Mihajlović (2024)
    Dunavski šljunak u okolini Zemuna karakterističan je za obalne rečne naslage formirane dugotrajnim procesima erozije i transporta materijala koje reka Dunav nosi sa različitih područja uzvodno. Ispitivanja šljunka sa lokacije „Gemax” su pokazala je šljunak uglavnom zaobljen, najčešće u rasponu od nekoliko milimetara do nekoliko centimetara u prečniku. Kako Dunav nosi materijal sa velikog sliva, ovaj šljunak sadrži raznovrsne sastojke sa dominacijom kvarca i odlomaka stena visokosilicijskog sastava. Mineraloško-petrografska ispitivanja pokazala su prisustvo klasta različitog sastava, čime je potvrđena ...
    Dunav, šljunak, mineraloško-petrografska ispitivanja, građevinarstvo
    ... (šljunak) w dobra 50% zrna većih od U jednolična graduiranost 0.075mm S (pesak) P slaba F prašine . . primese c gline Sitnozrna tla sa preko M (prašina) L niska 50% zrna manjih od C (glina) (I) (srednja) | plastičnost 0.075mm O (organsko tlo) H visoka Vlaknasta struktura Pt (treset) Slika ...
    ... iznosi C„=40,1. Koeficijent zakrivljenosti predstavlja meru asimetrije krive frekvencije. Mera asimetričnosti Je rezultat mešanja frakcija u različitom odnosu. Koeficijent zakrivljenosti je indikator kinetičke energije transportnog: medijuma. Ovaj koeficijent izračunat je korišćenjem formule C.= ...
    ... aaanaaaaaaaaaaaaaaaaaaatet 7 2.4.1. Terenska ispitivanja — uzorkovanje uzoraka ........aaaaaaaaaaaaanannnne 8 2.4.2. Granulometrijska analiza ...........c..aaaaaaaaaaanaa a aaaanananacacaacı 9 2.4.3. Ekvivalent peska ............annnnnn... ... 11 2.4.4. Otpornost prema habanju „Los Angeles”. ....14 ...

  • Kinetics, mechanism, and equilibrium studies of the reactions between a ruthenium(II) complex and some nitrogen- and sulfur-donor nucleophiles

    Aleksandar M. Mijatović, Ratomir M. Jelić, Jovana Bogojeski, Živadin D. Bugarčić, Biljana Petrović (2013)
    Kinetika i mehanizam reakcija supstitucije između [Ru(trpi)(bpi)Cl]+ sa nukleofilima gvanozin-5′-monofosfatom, L-histidinom, tioureom i dimetilsulfoksidom proučavani su spektrofotometrijski u 0,1 M NaClO4 na 310 K. Red reaktivnosti za odabrane ligande je: tiourea > gvanozin-5′-monofosfat > L-histidin > DMSO. Ovaj red je povezan sa elektronskim, strukturnim i hemijskim karakteristikama kompleksa i nukleofila. Reakcija supstitucije sa tioureom je proučavana na tri različite temperature (288, 298 i 310 K). Negativna entropija aktivacije DS = potvrđuje asocijativni način aktivacije. Formiranje kompleksa [Ru(trpi)(bpi)H2O]2+ sa ligandima ...
    Kinetika, Ravnoteža, Ru(II), L-Histidin, Guanozin-5' -monofosfat, Dimetilsulfoksid, Tiourea
    ... (Fig. 2). It is very small and contributes little to kobsd. N Ru NN N Cl N NH N N O NH2 N O H HH HH OH OPO O O H2N CH C CH2 OH O N NH H2N C NH2 S H3C S CH3 O DMSOTuL-His 5'-GMP[Ru(trpy)(bpy)Cl]+ Fig. 1 The structures of complex and nucleophiles 1490 A. M. Mijatović ...
    ... chlorido complex was converted into the aqua analog [Ru(trpy)(bpy)H2O] 2? by addition of two equiva- lents of AgClO4, heating the mixture to 50–60 �C for 1 h and removing the formed precipitate AgCl by filtration through a 0.10-lm pore membrane filter. Great care was taken to ensure that the resulting ...
    ... of equilibria should be considered in the present study: (a) protonation of the ligand anion, (b) hydrolysis of the [Ru(trpy)(bpy)H2O] 2? ion, and (c) general three-component equilibria, which include the case q = 0, i.e., the formation of pure binary complexes of [Ru(trpy)(bpy)H2O] 2?. The overall ...

  • Opremanje bušotine X zavojnom pumpom

    Milan Filipović (2024)
    Ovaj rad se bavi osnovnim pojmovima i karakteristikama zavojnih pumpi.Prikazan je sklop zavojnih pumpi i njena prateća oprema. Objašnjen je princip rada zavojnih pumpi kao i uloga svakog mašinskog elementa koji se nalazi u pumpi. Razmotrene su prednosti i nedostaci primene ovih primarnih mehaničkih metoda eksploatacije ugljovodonika. Dat je uvid u inovativna rešenja problematike primene zavojnih pumpi. Na konkretnom primeru bušotine X su prikazani problemi kao i rešenja primene ovih primarnih mehaničkih metoda u praksi. Napravljena je detaljna analiza ...
    zavojne pumpe, oprema, primarne mehaničke metode, ugljovodonici, analiza rada
    ... |2 = s e Š Rotor contacts :, y- stator here F!ud * O creating a Filled 5 sealed cavity Caviles & (a) Assembled Pump · (b)Rotor Geometry · (c)Stator Geometry Slika 2 – Shema radnog kola zavojne pumpe (A. Wood. 2002) Na prikazanoj shemi su označeni prečnik d kao i ekscentričnost ecc. Zatvoreni ...
    ... prečnik statora [m] Uticaj faktora uklapanja sa pozicijom rotora u odnosu na stator je prikazan na slici 4. (a) Exact fit (b) Interference fit (c) Clearance fit Slika 4 Uticaj faktora uklapanja na odnos rotora i statora (CNPC, 2018) Izimajući u obzir uticaj faktora uklapanja na protok unutar ...
    ... osnovu sledeće empirijske Jednačine: /pg = an025t021n020867, ,6 > O (2.5) o — faktor materijala statora n — broj obrtaja [Ž] t — temperatura |"C| H — viskoznost [mPa * s| Z —broj stepeni pumpanja 4py — kritični pritisak [MPa] 1--— p,ps# Ap OO .= .9>0 1-o —0.015(Ap-Ap,) , Ap> Ap, Q.6) ...

  • Upper Miocene depositional environments of the Kikinda-Mokrin High (Serbia)

    Saša Ivanišević, Dejan Radivojević (2018)
    Exploration for oil and gas in mature areas, such as the Pannonian Basin, can benefit from reexamination of old data using more advanced modern workflows that focus on the temporal and spatial aspects of sediment deposition. Specifically, we apply a new environment of deposition model that interprets the Upper Miocene- Pliocene sediments as being deposited in a rapidly filling basin characterized by quick shelf edge progradation from the northwest toward the southeast. Reconstruction of this shelf edge trajectory reveals ...
    naftna geologija, depozicione sredine, formacije, Panonski basen

  • Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation

    Maja Franković, Nevenka Novaković, Vesna Matović (2015)
    The Dark Gate is the monument of culture, part of the cultural and historical complex of the Belgrade Fortress. It is constructed of limestone blocks that after 270 years of exposure to environmental conditions and different anthropogenic influences show wide ranges of decay forms. During 2007, detail registration of all built limestone microfacies and weathering forms was done using tools of monument mapping. A correlation scheme ‘‘intensity– damage category’’ was made according to the type, intensity, and distribution of ...
    Krečnjak, mapiranje, Indeks raspadanja, brzina raspadanja, progresija
    ... slight (B), slight (C), moderate (D), severe (E), and very severe damage (F), damage indices-linear damage index DiLi, (1; Fitzner et al. 2002a) and progressive damage index Diyrog Were calculated (2; Fitzner et al. 2002b): B+(2·:C)+(3·D)+(4·E)+(5-F 0OO i G ) p — ( B+(4·C)+(9·D)+(16·E)+(25· ...
    ... and the northern facade are built by combining stone blocks and Fig. 1 a Location of the Dark Gate in Belgrade, Serbia; b South facade of the gate; c North facade of the gate @ Springer 6184 Table 1 Classification scheme of weathering forms and intensities for the built stone blocks in ...
    ... microfacies of built stone, five 6185 Environ Earth Sci (2015) 73:0181–6193 Fig. 2 Images and photomicrographs of stones built in the Dark Gate: (a-c) Grainstone; (d—e) Algal rudstone; (f-g) Rudstone structurally different samples were taken from the Monu- ment for petrographic study. Petrographic ...

  • Callovian (Middle Jurassic) Sphriganaria (Brachiopoda) from the Jordan Valley (Middle East)

    Howard R. Feldman, Barbara V. Radulović, Fayez Ahmad (2023)
    Brachiopods, Middle Jurassic, Sphriganaria, shell microstructure, Ethiopian Province

  • Thermal evolution of cation distribution/crystallite size and their correlation with the magnetic state of Yb-substituted zinc ferrite nanoparticles

    Vučinić-Vasić Milica, Bozin Emil S., Bessais Lotfi, Stojanović Goran, Kozmidis-Luburić Uranija, Abeykoon Milinda, Jancar Bostjan, Meden Anton, Kremenović Aleksandar, Antić Bratislav (2013)

  • Техничка и биолошка рекултивација као технолошки процес рада у површинској експлоатацији на примеру ПК „Тамнава Западно Поље“ РБ Колубара

    Вељко Божић (2024)
    Површинска експлоатација угља захтева управљање целокупним простором експлоатационог поља, како производњом угља, тако и одлагањем откривке. Рекултивација и реструктуирање ових маса нуди бројне могућности у избору и структуирању земљишта за потребе и циљеве човека и његове животне околине. Избор пост-експлоатационог начина коришћења земљишта треба заснивати на функционалним и социокултуралним потребама заједнице и окружења. Рекултивација представља комплекс рударских, инжењерских и пољопривредних мера које се спроводе за обнављање, па чак и побољшање, биолошке продуктивности и пољопривредне вредности терена нарушеног површинском експлоатацијом. ...
    Површинска експлоатација, Тамнав-Западно поље, техничка рекултивација, биолошка рекултивација, заштита животне средине
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  • The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector

    Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković (2020)
    Natural gas is used for the production of almost 20% of total energy today. The natural gas security of the Republic of Serbia is an urgent strategic, political and security issue. Serbia is one of the most vulnerable countries in Southeast Europe, because it only has one supply route. This study is a contribution to efforts to better understand the factors affecting energy security through the implementation of a new methodology based on the fuzzy–AHP synthesis model for measuring ...
    energetska bezbednost, prirodni gas, fazi AHP, AHP višekriterijumska analiza, fazi teorija
    ... µP3(n)) (12) 2. Affiliation functions can form C = n3 combinations with each other. Each combination represents practically one possible assessment Mi. Mc = [µP1(j=1, . . . , n), µP1(j=1, . . . , n), µP1(j=1, . . . , n)], (13) for every c = 1 to C. 3. If only the values that satisfying the condition ...
    ... O, where O ≤ C). Each outcome has corresponding values (iv) and (v) that further identify it for the calculation. 4. In the following, for each combination c which satisfies the condition of outcome, the value of Jc is calculated and rounded as integer, as follows: Jc = (kP1i · j(µP1)c) + (kP2i · j(µP2)c) ...
    ... j(µP2)c) + (kP3i · j(µP3)c) (14) wherе: - ki is the influential factor of the corresponding partial indicator on the synthesis and obtained on the basis of mutual ranking of the partial indicators (step III), where: kP1i + kP2i + kP3i = 1; - jc is the class to which the corresponding fuzzy number ...

  • Proširivanje upita zasnovano na leksičkim resursima

    Ranka Stanković, Ivan Obradović, Cvetana Krstev (2009)
    U radu je opisano kako se leksički resursi za srpski jezik i softverski alati, razvijeni u okviru Grupe za jezičke tehnologije Univerziteta u Beogradu, mogu koristiti za unapređenje postavljanja upita. Rezultati pretrage mogu biti značajno unapređeni korišćenjem različitih leksičkih resursa, kakvi su morfološki rečnici i semantičke mreže. Izloženi pristup može se iskoristiti i u Sistemu naučnih, tehnoloških i poslovnih informacija, jer je efikasno pretraživanje ovog dragocenog resursa, imajući u vidu njegovu heterogenost i obim, kao i preovladavajući tekstualni sadržaj, ...
    ... [4] Fellbaum C. (ed.) (1998) WordNet: An Electronic Lexical Database, The MIT Press. [5] Maurel D., Vitas D., Krstev S., Koeva S., (2007) „Prolex: a lexical model for translation of proper names. Application to French, Serbian and Bulgarian“, BULAG n°32, 2007. [6] Krstev C., Stanković R ...
    ... različitim namenama, pa samim tim otvaraju i mogućnosti njeogovog korišćenja u okviru SNTPI. LITERATURA [1] Vitas D., Pavlović-Lažetić G., Krstev C., Popović Lj., Obradović I. (2003): „Processing Serbian Written Texts: An Overview of Resources and Basic Tools“, Proc. of the International Workshop ...
    ... BalkaNet Project, Romanian Journal on Information Science and Technology, Bucureşti, Publishing house of the Romanian academy. [3] Vitas D., Krstev C. (2007), „Extending Serbian E dictionary by the Use of the Lexical Transducers“, Proc. of the 6th and 7th INTEX/Nooj Workshop, S. Koeva, D. Maurel ...