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Упит dcterms_subject_txt:kinetic study

705 items

  • Uniaxial compressive strength test before and after standard fire test on rock mass

    Stefan Mitrović, Goran Todorović, Bojan Kostić, Milica Mirković-Marjanović, Nikola Božović, Marija Krstić, Aleksandar Erić, Radovan Gospavić, Snežana Ilić, Aleksandar Kijanović (2022)
    ... standard fire test according to SRPS EN 1363-1, with the intention to test uniaxial compressive strength after standard fire test. The aim of this study was to examine the uniaxial compressive strength of the rock, before and after standard fire test on the rock mass. The paper presents the strengths ...

  • Trans-Lithospheric Diapirism as a Possible Mechanism for Ophiolite Emplacement?

    Nikola Stanković, Taras Gerya, Vladica Cvetković, Vesna Cvetkov (2024)

  • Површинско распадање керсантита из Тешића мајдана у корелацији са начином обраде на примеру малог степеништа (Београдска тврђава)

    Невенка Новаковић (2024)
    Архитектуру Београда на прелазу 19. у 20. век обележила је употреба керсантита из каменолома Тешића мајдана. Kao камен високих декоративних својстава, керсантит је коришћен за јавне споменике, делове или потпуну изградњу објеката (Народна скупштина Србије, Мало степениште, Народни музеј и др.). Како очување споменика културе изискује познавање својстава уграђеног камена, истраживања су обухватила детаљно проучавање петролошких, хемијских и физичких карактеристика керсантита из Тешића мајданa и узорака камена из споменика Мало степениште (студија случаја). Након детаљног мапирања стања керсантита, лабораторијских ...
    керсантит, Мало степениште, споменик културе, архитектонски камен, физичко-хемијско распадање, мапирање, форме распадања, површинска обрада

  • Resource-based WordNet Augmentation and Enrichment

    Ranka Stanković, Miljana Mladenović, Ivan Obradović, Marko Vitas, Cvetana Krstev (2018)
    In this paper we present an approach to support production of synsets for SerbianWordNet(SerWN)byadjustingPrincetonWordNet(PWN)synsetsusing several bilingual English-Serbian resources. PWN synset definitions were automatically translated and post-edited, if needed, while candidate literals for Serbian synsets were obtained automatically from a list of translational equivalents compiled form bilingual resources. Preliminary results obtained from a setof1248selectedPWNsynsetsshowthattheproducedSerbiansynsetscontain 4024 literals, out of which 2278 were offered by the system we present in this paper, whereas experts added the remaining 1746. Approximately one half of ...
    WordNet, bilingual resources, term alignment, parallel lists
    ... production and evaluation of SerWN synsets, the procedure includes obligatory post-editing of automatically prepared datasets. In our first case-study we applied our approach to 1248 synsets, and found out that expert had that 56.6% of literals in produced Serbian synset were literals offered by ...
    ... L., Stanković, R., Obradović, I., Kitanović, O., and Cvjetić, A. (2016). Development of terminological resources for expert knowledge: a case study in mining. Knowledge Management Research & Practice, 14(4):445–456. Kovačević, L., Injac, V., and Begenišić, D. (2004). Bibliotekarski terminološki ...

  • Definition of criteria and alternatives for choosing the optimal mining method deposits when applying multi: Criteria optimization, Belgrade, June 2024

    Sanja Bajić, Dragoljub Bajić, Branko Gluščević, Radmila Gaćina, Josip Išek (2024)
    multi-criteria decision-making, definition of criteria, underground exploitation

  • Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria

    Vladimir Krivošić, Luka Crnogorac, Rade Tokalić (2024)
    The choice of adequate mining machines is one of the most complex problems in the underground exploitation of mineral raw materials. The weight of such a decision is reflected in the high prices of these machines and the occurrence of even greater costs during their use if their choice was wrongly conceived. There are numerous examples from practice in which such decisions were made solely on the basis of comparing the prices of machines, without considering any of the ...
    utovarno-transportna mehanizacija, izbor, TOPSIS, entropija, standardna devijacija, težina kriterijuma

  • Upravljanje proizvodnjom nafte – novi alat na bazi fazi logike

    Мирослав Црногорац, Душан Даниловић, Лола Томић (2020)
    ... *Ocean Tomo, 2015, Intangible Asset Market Value Study, Preuzeto Januar 15, sa Ocean Tomo:http://www.oceantomo.com/intangible-asset-market-value-study/pdf Preduzetništvo, inženjerstvo i menadžment ...
    ... Journal of Intellectual Capital, 4(4), 414-464. [6] Ocean Tomo, 2015, Intangible Asset Market Value Study, Preuzeto Januar 15, sa Ocean Tomo: http://www.oceantomo.com/intangible-asset- market-value-study/pdf [7] Padzior, A., Pazdior, M., 2012, Measurement of Intelectual Capital in a Company, Management ...
    ... resursi Abstract: An empirical study on the recognition of the engineering profession in Serbia was conducted. The recognition was distinguished regarding public image of engineers and the engineer’s self-perception of their profession. The results of the study are presented in the paper. The authors ...

  • Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic

    Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković (2020)
    Artificial lift methods have applications in oil wells where oil production is no longer possible due to natural reservoir energy, so this necessary energy is added by introducing lift methods. In order to achieve optimum production, the selection of an artificial lift method is very important. This paper uses fuzzy logic as a mathematical and conceptual model for selection of the optimal artificial lift method. The outcome or IF-THEN rules, as the central part of the model, is based ...
    mehaničke metode, proizvodnja nafte, fazi logika, donošenje odluka, optimizacija
    ... D. Study of Dependability Evaluation for Multi-Hierarchical Systems Based on Max–Min Composition. Qual. Reliab. Eng. Int. 2013, 29, 317–326. [CrossRef] 23. Tanasijević, M.; Ivezić, D.; Jovančić, P.; Ignjatović, D.; Bugaric, U. Dependability assesment of open-pit mines equpment - Study on the ...
    ... thank the Ministry for the support. Conflicts of Interest: The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results. References 1 ...

  • 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

  • Efficiency and lifetime of medium voltage transformers

    Snežana Aleksandrović, Vesna Damnjanović (2017)

  • Substitution reactions of some novel sterically hindered monofunctional Pd(II) complexes

    Aleksandar Mijatović, Jovana Bogojeski, Biljana Petrović, Živadin D. Bugarčić (2011)
    Reakcije supstitucije monofunkcionalnih kompleksa [(TLtBu)PdCl]+ i [Pd(tpdm)Cl]+, gde je TLtBu = 2,6-bis[(1,3-di-terc-butilimidazolin-2-imino)metil]piridin i tpdm = terpiridindimetan, sa nukleofilima kao što su: tiourea, I−, Br−, NO2−, piridin i dimetil-sulfoksid (DMSO) proučavani su u 0,1 M vodenom rastvoru NaClO4 u prisustvu 10 mM NaCl. Reakcije su sprovedene na tri različite temperature (288, 298 i 308 K) korišćenjem tehnike zaustavljenog protoka na različitim temperaturama. Reakcije supstitucije su praćene pod uslovima pseudo prvog reda sa velikim viškom nukleofila. Dobijeni rezultati pokazuju da kompleks ...
    Materials Chemistry, Inorganic Chemistry, Physical and Theoretical Chemistry
    ... d 1.00 cm quartz Suprasil cells. Kinetic measurements were performed on an Applied Photophys- ics SX.18 stopped-flow instrument coupled to an online data acqui- sition system. The temperature was controlled throughout all kinetic experiments to ±0.1 K. 2.3. Kinetic measurements The substitution reactionsof ...
    ... d 1.00 cm quartz Suprasil cells. Kinetic measurements were performed on an Applied Photophys- ics SX.18 stopped-flow instrument coupled to an online data acqui- sition system. The temperature was controlled throughout all kinetic experiments to +0.1 K. 2.3. Kinetic measurements The substitution reactions ...
    ... suitable wavelengths as a function of time. Spectral changes were recorded over the range from 200 to 400 nm to establish a suitable wavelength at which kinetic measurements could be performed. Substitution reactions of [(TLtBu)PdCl]+ and [Pd(tpdm)Cl]+ complexes were initiated by mixing equal volumes of complex ...

  • Vebran Web Services for Corpus Query Expansion

    Ranka Stanković, Miloš Utvić (2020)
    U ovom radu se govori o razvoju veb usluga Vebran i njihovoj primeni u poboljšanju pretraživanja korpusa. Veb-servisi Vebran koriste se za konsultovanje spoljnih leksičkih izvora za srpski jezik (uglavnom elektronski morfološki rečnici i srpski Vordnet) i proširivanje korisničkih upita radi dobijanja relevantnijih rezultata iz srpskih korpusa.
    corpus search, web service, Serbian lexical resources, query expansion
    ... lexical resources. The language resources to be searched are various digital libraries and corpora, but in this paper, we will focus on corpus case study. The query expansion will rely on different lexical resources to support the search: 1) morphological electronic dictionaries; 2) WordNets and 3) t ...
    ... Ranka Stanković, Ivan Obradović, Olivera Kitanović and Aleksandar Cvjetić. “Development of terminological resources for expert knowledge: a case study in mining”. Knowledge Management Research & Practice Vol. 14, no. 4 (2016): 445–456. https://doi.org/10.1057/ kmrp.2015.10 116 Infotheca Vol. 19, No ...

  • Димензионисање система завојних пумпи

    Марија Дивац (2024)
    Овај завршни рад се бави димензионисањем система завојних пумпи (Progressive Cavity Pumps - PCP) које се широко користе у нафтној и гасној индустрији, нарочито за подизање тешких и вискозних флуида. Завојне пумпе су се показале као ефикасно решење у бушотинама са сложеним условима,захваљујући својој способности да транспортују флуиде са високим садржајем чврстих честица и гаса.Рад обухвата анализу кључних параметара као што су вискозност, густина, дубина бушотине и притисак, који су пресудни за избор одговарајуће пумпе.Применом софтверског алата извршена је ...
    завојне пумпе, димензионисање, експлоатација нафте, вискозни флуиди, софтверска симулација, PCP пумпе
    ... PNodalanalyss Descniption: Nodal analysis | Engine console - System resufts Profile results– Bubble point: View operating envelope:| | Case study = I Seiec cs FI ——= w wi 71e Ša is ššl) š& FEJ 1s H ša iži E w P · o H “ . B 0 i “ .6 3 FI „Stock.šank liquid at nodsl point ...
    ... Marin, A., 2014., Producing Extra Heavy Oil from Lianos Basin, Colombia, Through Progressive Cavity Pumps and Electric Submersible Pumps: Case Study in the Chichimene Field; 8. Wittrisch, C., Cholet, H., 2012., Progressing Cavity Pumps, Editions Technip. 26 H3JABA O AVTOPCTBY 3ABPIIIHOT ...

  • A Data Driven Approach for Raw Material Terminology

    Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja (2021)
    The research presented in this paper aims at creating a bilingual (sr-en), easily searchable, hypertext, born-digital, corpus-based terminological database of raw material terminology for dictionary production. The approach is based on linking dictionaries related to the raw material domain, both digitally born and printed, into a lexicon structure, aligning terminology from different dictionaries as much as possible. This paper presents the main features of this approach, data used for compilation of the terminological database, the procedure by which it has ...
    sirovine, rudarstvo, terminologija, rečnik, terminološka aplikacija, mobilna aplikacija, digitizacija, leksički podaci, korpusi, otvoreni povezani podaci
    ... dictionary production. The approach is focused on raw material terminology, with an emphasis on terminology related to the mining industry, as a case study, the main goal being to cover Serbian and bilingual English-Serbian terminology in the raw material domain, within a system that can be Appl. Sci ...
    ... Institutional Review Board Statement: Not applicable. Informed Consent Statement: Not applicable. Data Availability Statement: The data presented in this study are freely available for the search on site: https://termi.rgf.bg.ac.rs/ (accessed on 15 March 2021) and on request from the correspond- ing author ...
    ... feature extraction from usage examples. Conflicts of Interest: The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results. References 1 ...

  • Optimising in electrical energy consumption in mining plants

    Snežana Aleksandrović, Vesna Damnjanović, Ilija Jeftenić (2018)

  • EUROLAN 2021: Introduction to Linked Data for Linguistics Online Training School

    Milan Dojchinovski, Julia Bosque Gil, Jorge Gracia, Ranka Stanković (2021)
    Prva škola za obuku polaznika koju je organizovala COST akcija NexusLinguarum održana je od 8. do 12. februara 2021. godine sa ciljem da studenti, istraživači i stručnjaci nauče osnove lingvističke nauke o podacima. Tokom obuke polaznici su se upoznali sa širokim spektrom tema: od semantičkog veba, RDF -a i ontologija, do modeliranja i pretraživanja jezičkih podataka pomoću najsavremenijih ontoloških modela i alata. Škola je održana u okviru serije letnjih škola EUROLAN-a i organizovalo ju je virtuelno (onlajn) nekoliko instituta; ...
    nauka o lingvističkim podacima, povezani podaci u lingvistici, jezički podaci, EUROLAN, NexusLinguarum, COST akcija, škola za obuku
    ... linguistic data sci- ence, COST action CA180291 - was launched at the end of October 2019. The goal of the NexusLinguarum action is to promote the study of linguis- tic data science, for which the construction of an ecosystem of multilingual 1. NexusLinguarum Infotheca Vol. 21, No. 1, September 2021 ...

  • Energetska efikasnost elektromotora na površinskim kopovima

    Snežana Aleksandrović, Ilija Jeftenić (2023)

  • Пројекат ПРИЗМА: Карактеризација и технолошки поступци за рециклажу и поновну употребу флотацијске јаловине рудника „Рудник“

    Владимир Симић, Стефан Петровић, Филип Арнаут, Весна Цветков, Милена Костовић, Драган Радуловић, Јовица Стојановић, Владимир Јовановић, Дејан Тодоровић, Нина Николић, Јелена Сенћански, Грозданка Богдановић, Драгана Мариловић (2024)
    Prizma, REASONING, Rudnik, jalovina, Fond za nauku Republike Srbije

  • A tool for identifying the criticality in the disordered systems with metastable dynamics

    Svetislav Mijatović, Dragutin Jovković, Sanja Janićević, Stefan Graovac, Đorđe Spasojević (2021)
    Физика кондензоване материје

  • Синтеза и карактеризација керамике на бази сфена

    Jelena R. Pantić (2015-07-10)
    Механохемијска активација стехиометријске смеше реактаната TiO2, SiO2 и CaCO3 показала се као веома успешна и једноставна метода за добијање сфена (CaTiSiO5). На основу мерења релативних густина свих синтерованих узорака установљено је да максималну густину од 93,9 % имају узорци који су активирани 30 минута и синтеровани на 1200 °С. Микроструктурном анализом, тј. анализом слика синтерованих узорака активираних 30 минута, које су добијене скенирајућом електронском микроскопијом, опажа се бимодална расподела величине зрна, са просечном величином од 3 μm, односно 5 ...
    сфен, механохемија, Ритвелдова метода, оптичка спектроскопија, микроструктурна анализа, фазна трансфоpмација, чврсти раствори
    ... Krane H.G., Meyer H., Nistor L. and Van Trendeloo G. (1996) A synchrontron radiation, HRTEM, X-ray powder diffraction, and Raman spectroscopy study of malayaite, CaSnSiO5. Am Mineral 81: 595-602. http://www.springerlink.com/content/?Author=L.+G.+Gerasimova http://www.springerlink.com/content/ ...
    ... Ghose S., Ito Y. and Hatch D.M. (1991) Paraelectric-Antiferroelectric Phase Transition in Titanite, CaTiSiO5: I. A high temperature X-ray diffraction study of the order parameter and transition mechanism. Phys Chem Miner 17: 591-603. Dana E.S. (1959) Manual of mineralogy. John Wiley and Sons,17th edition ...
    ... Ивенсен, В.А. (1985) Феноменология спекания Cкачать. Металлурги, Москва. Ishida S., Hayashi M., Fujimura Y. and Fujiyoshi K. (1990) Spectroscopic study of chemical state and coloration of chromium in rutile. J Am Ceram Soc 73: 3351–3355. Jahn H.A. and Teller E. (1937) Stability of Polyatomic Molecules ...