Претрага
776 items
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NMR kinetic studies of the interactions between [Ru(terpy)(bipy)(H2O)]2+ and some sulfur-donor ligands
Aleksandar Mijatović, Biljana Šmit, Ana Rilak, Biljana Petrović, Dragan Čanović, Živadin D. Bugarčić (2012)Reakcije supstitucije monofunkcionalnog [Ru(terpi)(bipi)(H2O)]2+ kompleksa, gde je terpi = 2,2′:6′,2″-terpiridin i bipi = 2,2′-bipiridin, sa biološki relevantnim sumporo donorskim ligandima, kao što su tiourea, l-metionin, l-cistein i glutation, proučavane su u vodenim rastvorima tehnikom 1H i 13C NMR spektroskopije. Sve reakcije su proučavajne na pH 7,4, u prisustvu fosfatnog pufera, da bi se oponašalo fiziološko okruženje tokom procesa supstitucije. Reakcije se izvode na 295 K pod uslovima reakcija drugog reda. Uočeni rezultati pokazuju da brzina supstitucije snažno zavisi ...Aleksandar Mijatović, Biljana Šmit, Ana Rilak, Biljana Petrović, Dragan Čanović, Živadin D. Bugarčić. "NMR kinetic studies of the interactions between [Ru(terpy)(bipy)(H2O)]2+ and some sulfur-donor ligands" in Inorganica Chimica Acta, Elsevier BV (2012). https://doi.org/10.1016/j.ica.2012.09.016
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Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area
Jovan Kovačević, Maja Todorović, Marina Ćuk, Petar Papić . "Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area" in Carpathian Journal of Earth and Environmental Sciences (2016)
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The Nooj System as Module within an Integrated Language Processing Environment
... française 87, Paris: Larousse (1990) Fellbaum, C. (ed.) “WordNet: An Electronic Lexical Database”, The MIT Press (1998) ISO LMF, Language resource management - Lexical markup framework (LMF), (2006), ISO/TC 37/SC 4 N130 Rev.9, ISO CD 24613:2006. Krstev C., Pavlović-Lažetić G., Vitas D., Obradović ...
... 1-2, pp. 147- 161, (2004) Krstev C., Vitas D., Stanković R., Obradović I., Pavlović-Lažetić G.: Combining Heterogeneous Lexical Resources. Proc. of the Fourth International Conference LREC, Lisbon, Portugal, May 2004, vol. 4, pp. 1103-1106 (2004) Krstev C., Vitas D., Maurel D., Tran M. (2005) ...
... another - manipulation of bilingual aligned texts, allowing for various forms of their presentation and usage This software tool is developed in C# and operates on the .NET platform. An important feature of WS4LR is its flexibility expressed both by the possibility of setting environment parameters ...Ranka Stanković, Duško Vitas, Cvetana Krstev. "The Nooj System as Module within an Integrated Language Processing Environment" in Proceedings of the 2007 International Nooj Conference, Cambridge Scholars Publishing (2008)
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Uticaj nestacioniranih procesa u magistralnom gasovodu na proizvodnju gasa iz uglja
Vojislav Vuletić (1985)Vojislav Vuletić. Uticaj nestacioniranih procesa u magistralnom gasovodu na proizvodnju gasa iz uglja, Beograd:Rudarsko Geološki Fakultet, 1985
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Electronic Dictionaries - from File System to lemon Based Lexical Database
In this paper we discuss some well-known morphological descriptions used in various projects and applications (most notably MULTEXT-East and Unitex) and illustrate the encountered problems on Serbian. We have spotted four groups of problems: the lack of a value for an existing category, the lack of a category, the interdependence of values and categories lacking some description, and the lack of a support for some types of categories. At the same time, various descriptions often describe exactly the same ...... T. (2003). A linguistic ontology for the semantic web. GLOT international, 7(3):97–100. Francopoulo, G. (2013). LMF Lexical Markup Frame- work. John Wiley & Sons. Ide, N., Kilgarriff, A., and Romary, L. (2000). ITRI-00- 30 A Formal Model of Dictionary Structure and Con- tent. In Proceedings of ...
... udžbenike. Koeva, S., Krstev, C., and Vitas, D. (2008). Morpho- semantic relations in wordnet–a case study for two slavic languages. In Proceedings of Global WordNet Confer- ence 2008, pages 239–253. University of Szeged, De- partment of Informatics. Krstev, C. and Vitas, D. (2007). Extending ...
... 147–168. Krstev, C., Vitas, D., and Erjavec, T. (2004). MULTEXT- East resources for Serbian. In Zbornik 7. mednarodne multikonference Informacijska druzba IS 2004 Jezikovne tehnologije 9-15 Oktober 2004, Ljubljana, Slovenija, 2004. Erjavec, Tomaž and Zganec Gros, Jerneja. Krstev, C., Stanković, R ...Ranka Stanković, Cvetana Krstev, Biljana Lazić, Mihailo Škorić. "Electronic Dictionaries - from File System to lemon Based Lexical Database" in Proceedings of the 11th International Conference on Language Resources and Evaluation - W23 6th Workshop on Linked Data in Linguistics : Towards Linguistic Data Science (LDL-2018), LREC 2018, Miyazaki, Japan, May 7-12, 2018, European Language Resources Association (ELRA) (2018)
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Demise of the Wetterstein Carbonate Platform and onset of the Dachstein Carbonate Platform recorded in deep-water successions of the East Bosnian-Durmitor megaunit (Pliješevina, northern Montenegro, Dinarides)
Milica Mrdak, Eva Wagerer, Milan Sudar, Nevenka Djerić, Martin Đaković, Hans-Jürgen Gawlick. "Demise of the Wetterstein Carbonate Platform and onset of the Dachstein Carbonate Platform recorded in deep-water successions of the East Bosnian-Durmitor megaunit (Pliješevina, northern Montenegro, Dinarides)" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2024). https://doi.org/10.31577/GeolCarp.2023.26
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Application of machine learning for diagnosing the operation of a deep well pump in oil production
Maja Trikić (2024)This paper will thoroughly examine how machine learning can improve the diagnosis of deep well pumps by analyzing the role and function of the pumps, dynamograms, sensor technologies, and diagnostic methods.Our analysis will provide insights into modern techniques and approaches for enhancing the performance and reliability of oil production systems, targeting cost reduction and increased operational efficiency.deep well pump, dynamograms, machine learning, diagnostics of operating coditions,Random Forest, XGBoost... load, and the piston begins to move upward. Segment BC shows a constant load on the smooth rod. At point C, the movement of the smooth rod downward begins. During the movement from point C to point D, the piston in the downhole pump does not move, as the sucker rods continue to relieve and contract ...
... card c) Lo ad (I b} o — Lo ad (Ib} ) [-] 8 Š } [[ (3} 0 30 40 50. Polished rod position (in} Polished rod position (in} 42 Figure 6.1. Examples of patterns for operating conditions on surface and downhole dynamometric cards: (a) normal operation; (b) fluid hammer; (c) moving ...
... Sucker-Rod Pumping Manual; PennWell Books: Tulsa, OK, USA, 2003Curvelet Transform and sparse multi-graph regularized extreme learning 10. Wang, C.; Deng, C.; Wang, S. Imbalance-XGBoost: Leveraging weighted and focal losses for binary label-imbalanced classification with XGBoost. Pattern Recognit ...Maja Trikić. Application of machine learning for diagnosing the operation of a deep well pump in oil production, 2024
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Squamate remains from the Early and Middle Pleistocene Srem series in the Mutalj Quarry (Beočin, Northern Serbia)
Đurić Dragana, Bogićević Katarina, Nenadić Draženko. Squamate remains from the Early and Middle Pleistocene Srem series in the Mutalj Quarry (Beočin, Northern Serbia) no. 1, Struga:, 2016: 351-357
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Utvrđivanje Bondovog radnog indeksa Pb-Cu-Zn rude rudnika Rudnik
Jovana Jović (2024)Završni rad sa temom ,,Utvrđivanje Bondovog radnog indeksa Pb-Cu-Zn rude rudnika Rudnik” sastoji se iz opšteg i specijalnog dela. OPŠTI DEO sadrži: U opštem delu dato je: Uvod, Geografski položaj i istorijski razvoj rudnika "Rudnik", kratak prikaz geologije ležišta i eksploatacije rude kao i opis tehnološkog procesa flotacije rudnika “Rudnik”. SPECIJALNI DEO sadrži:U specijalnom delu dato je:Cilj istraživanja, teorijske osnove usitnjavanja, Bondov radni indeks, metode ispitivanja uzoraka, uzorkovanje i obrada uzorka; Metode ispitivanja; Rezultati ispitivanja po standardnom Bondovom postupku i po ...Bondov radni indeks, standardni postupak, skraćeni postupak, ruda olova, bakra i cinka, rudnik „Rudnik“... direktno proporcionalna promeni krupnoće (dx), a obrnuto proporcionalna krupnoći (x) na stepen (n): dx dE = —C x—n gde je: C – konstanta proporcionalnosti; znak (-) ispred konstante (C) potiče od toga što se krupnoća zrna (x) pri usitnjavanju smanjuje. Kada se u prethodnoj Jednačini zameni vrednost ...
... (F=o)) usitni do krupnoće pri kojoj 80% sirovine prolazi kroz sito sa kvadratnim otvorima veličine 100num (P=100um). W [kWh/sht] 1 1 =C · ( —— — ), P 'C — Cy = 10· W, Bondov test mlevenja u mlinu sa kuglama je laboratorijski test mlevenja u zatvorenom ciklusu. Pomoću njega se dobija Bondov ...
... kratka tona sirovine beskonačno velike krupnoće usitni do krupnoće pri kojoj 80% sirovine prolazi kroz sito kvadratnog otvora veličine 100 um. Fred C. Bond je primetio da su eksperimenti mlevenja u otvorenom ciklusu nepodesni za određivanje utroška energije prilikom mlevenja, odnosno da mogu da ...Jovana Jović. Utvrđivanje Bondovog radnog indeksa Pb-Cu-Zn rude rudnika Rudnik, 2024
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Mineragenija i potencijalnost karbonatnih sirovina rudnog reona Bjelopavlića (Crna Gora)
Darko M. Božović (2016-09-28)Karbonatne sirovine, obzirom na geološku građu Crne Gore predstavljaju jednu od najznačajnijih nemetaličnih mineralnih sirovina. U Crnoj Gori postoje brojna leţišta karbonatnih sirovina (arhitektonsko - građevinskog i tehničko - građevinskog kamena) koja su istraţena ili su u eksploataciji, među kojima rudni reon Bjelopavlića zauzima najznačajnije mjesto.Dosadašnja istraţivanja karbonatnih sirovina na ovom području imala su, međutim, prevashodno uzak istraţivački cilj, utvrđivanje rezervi arhitektonsko - građevinskog i tehničko - građevinskog kamena određenog leţišta, ili preliminarna ispitivanja kvaliteta krečnjaka u njima, sa ...karbonatne mineralne sirovine, arhitektonsko - građevinski kamen, tehničko - građevinski kamen, karbonatna punila, rudni reon Bjelopavlića, potencijalnost.... -20 0 20 e n d o 894 o C DTA TG D T A [ V ] Slika 4.4: Termički dijagrami (DTA/TG) uzorka krečnjaka VĆ-1/10 (Vinići) 0 200 400 600 800 1000 -50 -40 -30 -20 -10 0 e n d o DTA TG (20-1000) o C-44,80% 896 o C 875 o C 50/2 RK-1/09 T [ o C] T G [ % ] -80 -60 ...
... 897 o C (20-1000) o C-42,91% TG 50/4 S-1/09 T [ o C] T G [ % ] -100 -80 -60 -40 -20 0 20 DTA D T A [ V ] Slika 4.6: Termički dijagrami (DTA/TG) uzorka krečnjaka S-1/10 (Suk) 0 200 400 600 800 1000 -50 -40 -30 -20 -10 0 (20-1000) o C-43,12% 893 o C TG ...
... krečnjaka s područja rudnog reona Bjelopavlića Leţište/ p o ja v a S i T i A l F e M n M g C a N a K S P F C l B a S r C u Z n C r N i V B i O M in era l K L -1 / 1 1 ,1 6 4 2 ,2 9 1 8 ,8 0 ...Darko M. Božović. "Mineragenija i potencijalnost karbonatnih sirovina rudnog reona Bjelopavlića (Crna Gora)" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-28)
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Disordered kalsilite KAlSiO4
Kremenović Aleksandar, Vulić Predrag (2014)Kremenović Aleksandar, Vulić Predrag. "Disordered kalsilite KAlSiO4" in Acta Crystallographica Section C 70 no. 3, Copenhagen:International Union of Crystallography by Munksgaard (2014): 256-259. https://doi.org/10.1107/S2053229614002423
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FTIR Spectroscopic Study Of S-Metolachlor Sorption On Inorganic And Organically Modified Montmorillonite From Bogovina
... Sorption of S-metolachlor on HDTMA-montmorillonites causes the redshift of the C = O absorption band. Shifting to lower wavenumbers and joining with the deformation vibration band of water indicates that the C = O group participated in the formation of a bond with the montmorillonite. Sorption ...Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević. "FTIR Spectroscopic Study Of S-Metolachlor Sorption On Inorganic And Organically Modified Montmorillonite From Bogovina" in 3rd International and 15th National Congress - Soils for Future under Global Challenges, Sokobanja, Serbia, Serbian Society of Soil Science (2021)
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Synthesis and characterization of nanostructured Ca0.9Er0.1MnO3
Tijana B. Vlašković, Bojana Laban, Maja Milošević, Maria Čebela, Vladimir Dodevski, Milena Rosić (2023)... Merkulov, predsednik/chair Dušan Sladić Pesna Mišković Stanković Olgica Nedić Dragica Trivić Slađana 4lagić Organizacioni odbor Ž'lleža”“dRaJk”Yf,C Organising Committee eksandar Bojić . Suzana Jovanović-Šanta, Dušanka Milojković Opsenica ; ; . : predsednik/chair Dejan Opsenica Srđan Miletić ...
... prepare this nanostructured in their appropriate stoichiometric ratios. Obtained Cao,Ero,,MnOx powder was calcined in a temperature range of 800-1000 *C for 15min. Particle size, lattice parameters, structural changes, and specific surface area were investigated. DTA, X-ray diffraction (XRD), FTIR, ...Tijana B. Vlašković, Bojana Laban, Maja Milošević, Maria Čebela, Vladimir Dodevski, Milena Rosić. "Synthesis and characterization of nanostructured Ca0.9Er0.1MnO3" in Book of Abstracts Proceedings / 59th Meeting of the Serbian chemical society, Novi Sad, Serbia, June 1-2, 2023, Belgrade : Serbian Chemical Society (2023)
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Процјена хазарда и ризика од клизишта за различите нивое просторног планирања у Републици Српској, БиХ
Цвјетко С. Сандић (2022)Територија Републике Српске је у посљедних десетак година веома угрожена активирањем нових и реактивирањем старих клизишта. Она својим дјеловањем наносе огромне материјалне штете, па и људске жртве, те је неопходно озбиљније третирање и дјеловање у борби са овим природним хазардом. Чест проблем јесте одговорност, тј. надлежност институција из ове области и недостатак у законској регулативи која готово никако или само површно обрађује област хазарда и ризика од клизишта. Усљед непостојања праксе и усвојених методологија које су у примјени у свијету, циљ ...Цвјетко С. Сандић. Процјена хазарда и ризика од клизишта за различите нивое просторног планирања у Републици Српској, БиХ, Београд : [Ц. Сандић], 2022
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Small Mammals from the Velika and Mala Balanica caves (Niš, southern Serbia)
Bogićević Katarina, Nenadić Draženko, Mihailović Dušan. Small Mammals from the Velika and Mala Balanica caves (Niš, southern Serbia) no. 1, Struga:, 2016: 357-360
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Comparative study of Serbian Miocene coals – insights from biomarker composition
Stojanović Ksenija, Životić Dragana (2013)Stojanović Ksenija, Životić Dragana. "Comparative study of Serbian Miocene coals – insights from biomarker composition" in International Journal of Coal Geology 107 no. 1, Amsterdam, Netherlands:Elsevier BV (2013): 3-23. https://doi.org/10.1016/j.coal.2012.09.009
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[Zn3(PO4)2(H2O)0.8(NH3)1.2]
Stojanović Jovica, Đorđević Tamara, Karanović Ljiljana. "[Zn3(PO4)2(H2O)0.8(NH3)1.2]" in Acta Crystallographica Section C C66 no. 5, Rosenoerns Alle 1; PO Box 227; Copenhagen V, 1502; Denmark:Blackwell Munksgaard (2010): i55-i57. https://doi.org/10.1107/S0108270110014885
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BaCo3(VO4)2(OH)2 with regular Kagome lattice
Đorđević Tamara, Karanović Ljiljana (2013)Đorđević Tamara, Karanović Ljiljana. "BaCo3(VO4)2(OH)2 with regular Kagome lattice" in Acta Crystallographica Section C C69 no. 2, Rosenoerns Alle 1; PO Box 227; Copenhagen V, 1502; Denmark:Blackwell Munksgaard (2013): 114-118. https://doi.org/10.1107/S0108270113001972
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Classification of Terms on a Positive-Negative Feelings Polarity Scale Based on Emoticons
Mihailo Škorić (2017)The goal of this paper is to draw attention to the possibility of using emoticon-riddled text on the web in language-neutral sentiment analysis. It introduces several innovations in the existing framework of research and tests their effectiveness. It also presents a software tool especially made for that purpose, explains how it builds a database with sentimental value of terms and offers the user manual. Finally, it presents a software tool that tests the new database and gives some examples ...... in element t (token). – New element t is assigned with attribute c (count), which indicates the number of repetitions of this token in the database, and its value is equal to the difference of the ordinal numbers from the two nodes. c = m− n (2) – New element t is assigned with attribute v (value) ...
... marking the end of the document, and for calculating the attribute c for the previous sibling token. t (term) v (value) no (ordinal number) zdravko -0.1 859231 zdravko 0.3 859232 zdravlje 0.26 859233 t (term) v (ordinal number) c (repetitions number) zdravko 0.2 2 zdravlje 0.26 1 Table 2. Appearance ...
... as the quotient of the sums of products of attributes v and c of both elements and the total number of their repetitions (2.4). Repetitions attribute is equals the total number of their repetitions (2.5). v = v1 ∗ c1 + v2 ∗ c2 c1 + c2 (4) c = c1 + c2 (5) The new elements with the attributes are kept ...Mihailo Škorić. "Classification of Terms on a Positive-Negative Feelings Polarity Scale Based on Emoticons" in Infotheca, Faculty of Philology, University of Belgrade (2017). https://doi.org/10.18485/infotheca.2017.17.1.4
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Геолошке карактеристике лежишта нафте која се експлоатишу еруптивном методом
Милица Милићевић (2024)Геолошке карактеристике специфичних лежишта утичу на различите начине на ефикасност еруптивне методе. Најзначајније геолошке карактеристике које делују на еруптивну методу јесу порозност, пропусност, тип лежишта, резервоар стијене, као и тип замки. Еруптивна метода подразумјева коришћење природног притиска ради лакше експлоатације нафте и гаса из резервоара. У завршном раду су приказани различити типови лежишта и њихове геолошке карактеристике, као и предности и недостаци еруптивне методе код истих.... LEŽIŠTA SA TEKTONSKIM TRAPOM 2. LEŽIŠTA SA MORFOLOŠKIM TRAPOM (UZVIŠENJA, MASIVI.....) |- a) ZASVOĐENA b)TEKTONSKI EKRAN| a)DISJUNKTIVNOG b) EROZIONOG c) BIOGENOG d) KOMPAKCIONOG š POREKLA POREKLA POREKLA POREKLA Š || MASIVNA ; *š LEŽIŠTA ž Š d) KOMBINOVANOG | t POREKLA = 1. SOČIVASTA LEŽIŠTA ...
... KpeubakKa. OnBaj Tr mexxHimra je Hajuenihe HaljeH y rpupojiHHM pe3epBOapHMa KOJH Cy OKPy)KEHH HEHPOITIyCHHM CTHJEHaMA, KaO IIITO Je IIpHKa3aHo Ha C-m 2. Jlexeumra HMaJy OOJIHK cI0ja, KojuH Je OOHMuHO paBHOMJepHe JleOJbHHe H CaCTaBJbCH OJI CJIHUHHX BpcTa cTHJeHa. Bs E 4 - propusni sloj (rezervoar) ...
... YyTJBOBOJIHHIH 3aCyTaBJbEHH CBOJIOM (KOHBEKCHOILhy), JOK y ČKpaHH3OBaHHM PacjeJl ripe,icTaBJba OapHjepy. Mopdozmomiru rpar rnpejicraBJba y3BHIIICPb=C HJIH H3/UHTHyTH MaCHB HacTaoO TEeKTOHCKOM KOMIIpeCHJOM, pa3jHHuHTOr HOPpHJeKMa: JOHCJyHKTHBHOT, CDO3HOHOT, OMOTeHOTF, KOMITAKIMHOHOT HJIH KOMOHHOBaHOT ...Милица Милићевић. Геолошке карактеристике лежишта нафте која се експлоатишу еруптивном методом, 2024