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Упит dcterms_subject_txt:Inorganic Chemistry

232 items

  • Valorization of non-balanced coal reserves in Serbia for underground coal gasification

    David Petrović, Lazar Kričak, Milanka Negovanović, Stefan Milanović, Jovan Marković, Nikola Simić, Ljubisav Stamenić (2019)
    In the name of a better and safer energy future, it is our responsibility to focus our knowledge and activities to save on imported liquid and gas fossil fuels, as well as coal on which energy security of Serbia is based. The rationalization in the use of available energy resources certainly positively affects economy and the environment of a country. This paper indicates motivations for the application of the underground coal gasification process, as well as surface gasification for ...
    ugalj, gasifikacija, zaštita životne sredine, skladištenje, solarna
    ... already been contaminated during some of the processes, are exposed to further pollution in their cir- culation. Pollutants are all organic, inorganic and similar substances, or components that are in natural or artificial conditions brought into the underground aquifer, or they are continuously ...
    ... borehole help to avoid possible problematic geo- logical structures of the coal bed, as well as coal roof and coal fioor. Coal gasification chemistry includes Gasification cavity shape seven primary reactions occurring within the with CRIP layer. The primary reaction that happens is the di ...

  • A Multilingual Evaluation Dataset for Monolingual Word Sense Alignment

    Sina Ahmadi, John P McCrae, Sanni Nimb, Fahad Khan, Monica Monachini, Bolette S Pedersen, Thierry Declerck, Tanja Wissik, Andrea Bellandi, Irene Pisani, [...] Ranka Stanković and others (2020)
    Aligning senses across resources and languages is a challenging task with beneficial applications in the field of natural language processing and electronic lexicography. In this paper, we describe our efforts in manually aligning monolingual dictionaries. The alignment is carried out at sense-level for various resources in 15 languages. Moreover, senses are annotated with possible semantic relationships such as broadness, narrowness, relatedness, and equivalence. In comparison to previous datasets for this task, this dataset covers a wide range of languages ...
    lexical semantic resources, sense alignment, lexicography, language resource
    ... Proceedings of the 9th Global WordNet Conference (GWC 2018), pages 62–69. Meyer, C. M. and Gurevych, I. (2011). What psycholin- guists know about chemistry: Aligning Wiktionary and WordNet for increased domain coverage. In Proceedings of 5th International Joint Conference on Natural Lan- guage Processing ...

  • ‘Blue-’ and ‘Brown-speckled’ pottery from Qalhât, the Sultanate of Oman (13–16th centuries): Comparison with traditional Omani 19–20 century productions

    Liliana Gianni, Hélène Renel, Aleksandar Kremenović, Philippe Colomban (2020)
    Representative ‘Blue speckled’ (13–16th centuries) and ‘Brown speckled’ (13–21st century) wares recovered from the excavations in Qalhât or collected around Bahlâ city (Sultanate of Oman) were characterized by XRPD, SEM-EDS, Raman/optical microspectroscopy, and thermal expansion. Minerals present in the body (quartz, augite and albite as major phases, calcite, dolomite, rutile, anatase, phosphate, hematite and magnetite as minor phases) were identified by XRPD and/or Raman spectroscopy. SEM-EDXS microanalysis was performed on the glazes in order to compare their composition, especially ...
    Firing, Glaze, Traditional ceramics, Provenance studies, Augite

  • Distribution of major and trace elements in the Kovin lignite (Serbia)

    Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović (2019)
    geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive Xray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). ...
    General Earth and Planetary Sciences, General Environmental Science
    ... e minerals are common con­ stituents of the inorganic matter in Kovin lignites and include mainly quartz, illite/smectite, rarely chlorite and plagioclase, and more rarely, mica (biotite, muscovite), and K­feldspar (Fig. 4). Quartz is a major inorganic component of the Kovin lignites, es­ pecially ...
    ... of non­mineral inorganic ele­ ments in low­rank coal macerals as shown by electron microprobe element map­ ping techniques.– International Journal of Coal Geology, 70, 137–149. doi: 10. 1016/j.coal.2006.04.009 LI, Z., WARD, C.R. & GURBA, L.W. (2010): Occurrence of non­mineral inorganic ele­ ments in ...
    ... author: dragana.zivotic@rgf.bg.ac.rs; tel: +381 11 3219 251; fax: +381 11 3235 537) 2 Center of Chemistry, IChTM, Studentski trg 12–16, 11000 Belgrade, Serbia 3 University of Belgrade, Faculty of Chemistry, Studentski trg 12–16, 11000 Belgrade, Serbia 4 Kovin coal mine, Cara Lazara 85, 26220 Kovin ...

  • 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
    ... В. (1983) Экспериментальные методы в механохимии твердых неорганических веществ. Наука, Новосибирск. Boldyrev V.V. (1987) Mechanochemistry of inorganic solids. Thermochim Acta 110: 303–317. Болдырев В.В. и Аввакумов Е.Г. (1971) Механохимия твердых неорганических веществ. Успехи химии 10: 1835–1856 ...
    ... Vyazovkin S. and Wight C.A. (1997) Kinetics in solids. Annu Rev Phys Chem 48: 125-149. Gadsden Ј.А. (1975) Infrared Spectra of minerals and related inorganic compounds. Butterworth & Co Publishers Ltd, U.S.A. Gascoyne, M. (1986) Evidence for the stability of the potential nuclear waste host sphene ...
    ... Reviews in mineralogy 27, Mineralogical Society of America, Washington, D.C. 516. Obeti R., Smith D.C., Rossi G. and Caucia F. (1991) The crystal-chemistry of high-aluminium titanites. Eur J Mineral 3: 777-792. Oleg Vasylkiv O., Sakka Y. and Skorokhod V.V. (2007) Nano-explosion synthesis of mu ...

  • 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
    ... В. (1983) Экспериментальные методы в механохимии твердых неорганических веществ. Наука, Новосибирск. Boldyrev V.V. (1987) Mechanochemistry of inorganic solids. Thermochim Acta 110: 303–317. Болдырев В.В. и Аввакумов Е.Г. (1971) Механохимия твердых неорганических веществ. Успехи химии 10: 1835–1856 ...
    ... Vyazovkin S. and Wight C.A. (1997) Kinetics in solids. Annu Rev Phys Chem 48: 125-149. Gadsden Ј.А. (1975) Infrared Spectra of minerals and related inorganic compounds. Butterworth & Co Publishers Ltd, U.S.A. Gascoyne, M. (1986) Evidence for the stability of the potential nuclear waste host sphene ...
    ... Reviews in mineralogy 27, Mineralogical Society of America, Washington, D.C. 516. Obeti R., Smith D.C., Rossi G. and Caucia F. (1991) The crystal-chemistry of high-aluminium titanites. Eur J Mineral 3: 777-792. Oleg Vasylkiv O., Sakka Y. and Skorokhod V.V. (2007) Nano-explosion synthesis of mu ...

  • Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija

    Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić (2016)
    flotacijska jalovišta, životna sredina, višekriterijumska analiza, ekologija, Trepča
    ... is one of the most important in the field of multi-criteria analysis. This method finds its application in different industrial sectors (mining, chemistry, ecology, medicine, etc.). This allows complete ranking of the alternatives. The method was developed by Jean-Pierre Brans (1982) [26], in two basic ...

  • 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

  • Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia

    Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević (2020)
    Stratigraphy,Economic Geology,Geology,Geophysics,Oceanography

  • Model inteligentnog sistema adaptivnog upravljanja procesom prerade rude

    Ivana M. Jovanović (2016-01-13)
    U oblasti procesa prerade rude, flotacijska koncentracija predstavlja jednu od najznačajnijih i najčešće primenjivanih metoda separacije korisnih od nekorisnih minerala. Samim tim, veoma je važno osigurati uspešan rad flotacijskog postrojenja kroz dostizanje zadovoljavajućih tehno-ekonomskih pokazatelja. Cilj upravljanja procesom flotacijske koncentracije je upravo optimizacija kvaliteta i iskorišćenja korisne komponente u koncentratu uz maksimizaciju profita. Shodno tome, istraživanja na polju modelovanja i upravljanja ovim procesom zauzimaju značajno mesto u praksi kontolnog inženjenringa.Teorijska istraživanja u okviru doktorske disertacije obuhvatila su analizu položaja ...
    flotacijska koncentracija, modelovanje, upravljanje, inteligentni sistem, soft kompjuting, fazi logika, veštačke neuronske mreže
    ... concentrate grade in flotation froth systems. Phd Thesis, University of Cape Town, 266 p. 72. Fuerstenau D. W., 2007. A Century of Developments in the Chemistry of Flotation Processing, in: Froth flotation A Century of Innovation, SME, (Editors: Fuerstenau M.C., Jameson G., Yoon R-H), pp.3–64 73. Fyfe ...
    ... 1996. Rule-Based Characterization of Industrial Flotation Processes with Inductive Techniques and Genetic Algorithms. Industrial & Engineering Chemistry Research 35, pp. 4119–4127 85. Gui, W., Liu, J., Yang, C., Chen, N., Liao, X., 2013. Color co-occurrence matrix based froth image texture extraction ...
    ... and design of froth flotation circuits for mineral processing, using the jumping gene adaptation of genetic algorithm. Industrial & Engineering Chemistry Research 44 (8), pp. 2621–2633 90. Guria, C., Verma, M., Gupta, S.K., Mehrotra, S.P., 2005b. Simultaneous optimization of the performance of flotation ...

  • Novi model za postizanje optimalne proizvodnje na naftnom polju Amal

    Elnori Elmabrouk Ali Elhaddad (2015-04-16)
    Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...
    nafta, proizvodnja, optimizacija, Amal, Libija
    ... Characteristics with a Reference to Teeside Oil Pipeline, SPE 28966, and Paper presented at the 1995 SPE International Symposium on Oilfield Chemistry, Texas, and February 14-17. Harouge (2011), About Harouge Oil Operations, Harouge Oil Operations, www.vebalibya.com. Harvie C. (2013) Oil ...
    ... SIAM Annual Meeting, Boston, Mass, USA. Rashid K., (2010). “Optimal allocation procedure for gas-lift optimization,” Industrial and Engineering Chemistry Research, vol. 49, no. 5, pp. 2286– 2294. Rashid K. Bailey W., Couet B., (2012) A Survey of Methods for gas-Lift optimization, Schlumberger-Doll ...

  • Novi model za postizanje optimalne proizvodnje na naftnom polju Amal

    Elnori Elmabrouk Ali Elhaddad (2015-04-16)
    Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...
    nafta, proizvodnja, optimizacija, Amal, Libija
    ... Characteristics with a Reference to Teeside Oil Pipeline, SPE 28966, and Paper presented at the 1995 SPE International Symposium on Oilfield Chemistry, Texas, and February 14-17. Harouge (2011), About Harouge Oil Operations, Harouge Oil Operations, www.vebalibya.com. Harvie C. (2013) Oil ...
    ... SIAM Annual Meeting, Boston, Mass, USA. Rashid K., (2010). “Optimal allocation procedure for gas-lift optimization,” Industrial and Engineering Chemistry Research, vol. 49, no. 5, pp. 2286– 2294. Rashid K. Bailey W., Couet B., (2012) A Survey of Methods for gas-Lift optimization, Schlumberger-Doll ...

  • Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides

    Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor (2019)
    Internal Dinarides, Drina-Ivanjica thrust sheet, Deformation history, K–Ar dating, Obduction, Structural analysis
    ... the eastern Alps. Geology, 17(5), 404—407. Roberson, H. E., & Lahann, R. W. (1981). Smectite to illite conversion rates: effects of solution chemistry. Clays and Clay Minerals, 29(2), 129-135. Robertson, A. (2004). Development of concepts concerning the genesis and emplacement of Tethyan ophiolites ...

  • Uticaj utiskivanja gas-lift gasa na prenos mase i toplote

    Branko Grubač (2019)
    Nakon uvođenja kontinualnog gas-lifta, primećen je porast proizvodnje tečnog naftnog gasa, TNG, u postrojenju za preradu gasa, kao jednog od finalnih proizvoda dobijenog iz fluida gaso kondenzatnih i rastvorenog gasa iz naftnih bušotina. Pretpostavljeno je da se prisustvom gas-lift gasa uspostavlja drugačija ravnoteža faza u odnosu na slučaj bez gaslifta, te da je gas-lift gas stripovao propan i butane iz tečne u parnu fazu, što je dovelo do povećanja prinosa TNG-a. Napravljen je model bušotine koja radi u kontinualnom gas-liftu ...
    gas-lift, modelovanje bušotine, prenos mase i toplote, taloženje parafina
    ... Engineering Science, Vol. 27, str 1197-1203, (1972) [35] D. Peng, D. Robinson, A new two-constant equation of state, Idustrial & Engineering Chemistry Fundamentals, Vol. 15, str 56-64, (1976) [36] T. Boldizsar, The distribution of temperature in flowing wells, Americal Journal of science, Vol ...
    ... 607-617, (1973) [73] A. Dukler, M. Hubbard, A model for gas-liquid slug flow in horizontal and near horizontal tubes, Industrial & Engineering Chemistry Fundamentals, Vol. 14, str 337-347, (1975) [74] D. Viswanath, Viscosity of liquids, Springer, (2006) [75] H. Zhang, Q. Wang, C. Sarica, J. Brill ...
    ... Ming, Q. Shujuan, L. Jianfeng, Z. Ling, Prediction model based on the theory for tackling wax deposition in oil pipelines, Journal of natural gas chemistry, Vol. 14, str 243-247, (2005) [97] M. Jorda, Paraffin deposition and prevention in oil wells, Society of Petroleum Engineers, SPE paper, str ...

  • Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications

    Vesna Lesić, Emo Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov (2018)
    The Vardar-Tethyan mega-suture between the Eurasian and Adria (Gondwana) margins comprises remnants of oceanic lithosphere of Neotethys and distal parts of the adjacent continental margins including unconformable Late Cretaceous sedimentary cover and Cenozoic igneous rocks of post-obduction age. This study provides kinematic constraints for displacements and rotations affecting the Serbian part of the West Vardar and Jadar-Kopaonik units after the closure of the Neotethyan (= Sava) Ocean. The targets of the paleomagnetic research were Late Cretaceous sediments representing an ...
    Paleomagnetism, Clockwise rotation, Dinarides, West Vardar zone
    ... Kounov, A., Ovtcharova, M., Schaltegger, U., et al. (2011). Cenozoic granitoids in the Dinarides of Southern Serbia: Age of intrusion, isotope geo- chemistry, exhumation history and the significance for the geodinamic evolution of the Balkan Peninsula. International. Journal of Earth Science, 100, 1181–1206 ...

  • Back-arc underplating provided crustal accretion affecting topography and sedimentation in the Adria microplate

    Paolo Mancinelli, Vittorio Scisciani, Cristina Pauselli, Gérard M. Stampfli, Fabio Speranza, Ivana Vasiljević (2021)
    Supported by evidence of deep crustal sources for the observed magnetic anomalies in Central Italy and by outcropping gabbros in the Croatian archipelago, we model the observed gravity and magnetic anomalies in the Central Adriatic Sea and surroundings. We suggest that the major magnetic anomalies in the area are related to a wide underplating and propose that this volume represents the first stage of the back-arc Adria continental breakup in Early Permian times. During the Palaeotethys-Adria collision, underplating has ...
    Underplating, akrecija kore, Magnetske anomalije, Jadranska ploča

  • Анализа примене утискивања полимера за повећање искоришћења лежишта „Х“

    Јана Ивановић (2024)
    Лежиште „Х“ се налази у Панонском басену и део је нафтно-гасног поља „ХХ“.С обзиром на висок удео воде у произведеном флуиду на лежишту је потребно применити неку методу којом би се смањила брзина напредовања фронта воде ка производним бушотинама, односно смањио удео воде у производњи. Овај рад има за циљ да детаљно испита могућност примене једне од допунских метода повећања искоришћења лежишта, методе утискивања полимера на изабраном лежишту „Х“. Први део рада приказује основне теоријске појмове на којима се ...
    методе повећања искоришћења, хемијске методе, инјектирање полимера, нумеричка симулација
    ... Plans”, 2012. [4] Cai Shuwet, He Xianru, Liu Kun, „Macromolecular interactions and synergy in xanthan/HPAM aqueous solution”, Royal Society of Chemistry, 2017. [5] Chang Hong Gao, „Scienfific research and field applications of polymer Jlooding in heavy oil recovery”, 2011. [6] Dao Saleh Laila ...

  • 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
    ... (26%) entries belong to the general technical terminology. There are also entries from basic science, for example, 885 (7%) terms related to biology, chemistry, mathematics, informatics and physics. Among entries from the mining domain, those related to a specific subdiscipline of mining were identified ...

  • 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)
    Multidisciplinary

  • Upravljanje proizvodnjom nafte – novi alat na bazi fazi logike

    Мирослав Црногорац, Душан Даниловић, Лола Томић (2020)
    ... com/file/30231672/4470-Lecture- 6-2013pptx/ [6] Crocker, M. (2010) Thermochemical conversion of biomass to fuel and chemicals. Royal Society of Chemistry. Preduzetništvo, inženjerstvo i menadžment ...
    ... koristi u ishrani. LITERATURA [1] Le, K., Chiu, F., Ng, K. (2007). Identification and quantification of antioxidants in Fructus lycii. Food Chemistry, 105, 353-363. Goji berry (Wolfberry). Kaempferol, Myricetin, Quercetin. [2] Nascimento, N. A., Silvestre, M. D., Leme, O, F., Nomura, S. C., Naozuka ...
    ... Tehnološki fakultet, Novi Sad [10] Folin, O., Ciocalteu, V. (1927). On tyrosine and tryptophane determinations in proteins. The jurnal of Biological Chemistry, 73: 627-650 [11] Каракашова, Љ., Бабановска-Миленковска, Ф. (2012) Преработка на овошје и зеленчук-практикум, ФЗНХ- Скопје, 1; 16-18; 82. ...