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Упит dcterms_subject_txt:Condensed Matter Physics,General Materials Science

985 items

  • Towards Automatic Definition Extraction for Serbian

    Ranka Stanković, Cvetana Krstev, Rada Stijović, Mirjana Gočanin, Mihailo Škorić (2021)
    U radu su prikazani preliminarni rezultati automatske ekstrakcije kandidata za definicije rečnika iz nestrukturiranih tekstova na srpskom jeziku u cilju ubrzanja razvoja rečnika. Definicije u rečniku Srpske akademije nauka i umetnosti (SANU) korišćene su za modelovanje različitih tipova definicija (opisnih, gramatičkih, referentnih i sinonimskih) koje imaju različite sintaksičke i leksičke karakteristike. Korpus istraživanja sastoji se od 61.213 definicija imenica, koje su analizirane korišćenjem morfoloških e-rečnika i lokalnih gramatika implementiranih kao pretvarači konačnih stanja u paketu za obradu korpusa otvorenog ...
    ... school; history domain is represented by four primary school textbooks; computer science is represented by one primary school textbook and tree high school ones, while physics is represented by one primary school textbook. General technique is represented by three textbooks for professional/vocational technical ...
    ... section, we created a corpus of 25 primary and secondary school textbook covering the following domains: biology, history, logic, music, computer science, physics and design and technology (technological education). The biology domain is covered by seven textbooks: one for primary school, four for high ...
    ... -оћа, -ина, etc. first a general definition is given in the form: osobina, stanje ili svojstvo (an attribute, a state or a feature) онога који је (of one who is) / онога што је (which is), followed by the adjective from which the abstract noun was derived. This general definition may occasionally ...

  • A Mathematical Learning Environment Based on Serbian Language Resources

    Radojičić Marija, Obradović Ivan, Stanković Ranka, Utvić Miloć, Kaplar Sebastijan (2018)
    In recent years, in line with ever growing usage of Information technology, the learning environments are changing. The amount of available learning materials in various forms has increased. These new environments demand comprehensive learning systems, which enable management of the learning corpus with special attention paid to relevant lexical resources. In this paper we present the concept of a Mathematical Learning Environment in Serbian (MLES), which is based on a corpus of mathematical materials and various lexical resources, enabling ...
    mathematical content, text processing, mathematical formulae
    ... growing number and availability of learning materials, had a strong impact on changes in learning environments. New learning environments are needed, requiring appropriate technology to facilitate access to and management of learning materials in specific domains. Bearing this in mind, d ...
    ... considerably, as mathematical materials in Serbian are available in different formats, alphabets and dialects. Besides coping with different ways of writing mathematical formulae, one of the main challenges in obtaining a searchable format of these materials is the conversion of source files ...
    ... Mathematical Formulae. A Lecture Notes in Computer Science, 4120 (1), pp. 241- 253. [6] Iancu, M., Kohlhase, M., Prodescu, C. (2014). Representing, Archiving, and Searching the Space of Mathematical Knowledge. Lecture Notes in Computer Science, 8592 (1), pp. 26- -30. [7] Lozier, L. D., (2003) ...

  • Using technology for knowledge transfer between academia and enterprises

    Ivan Obradović, Ranka Stanković (2014)
    ... and enterprise staff involved in production of OER materials. As its third objective the project will produce course materials in several different languages, in various forms such as videos, audio streams and written material. The materials will be supported by electronic terminological resources ...
    ... Western Balkans. Another objective is to provide training for members of universities and enterprises for production of OER materials. The third objective is to produce materials in various languages, in video, audio and textual format, supported by electronic terminological resources, services, and ...
    ... the even wider open educational resources (OER) initiative, where materials are offered openly and freely to educators, students, and self-learners to use and reuse for teaching, learning, and research (Bissell, 2009). The materials are released under an open source license which permits their use ...

  • Review: Methodological approaches and research techniques for addressing construction and remediation problems in karst reservoirs

    Saša Milanović, Ljiljana Vasić (2021)
    Earth and Planetary Sciences (miscellaneous), Water Science and Technology

  • Pre-failure deformation monitoring as rockfall prediction tool

    Miloš Marjanović, Biljana Abolmasov, Zoran Berisavljević, Marko Pejić, Petko Vranić (2021)
    General Engineering
    ... this will be the subject of a detailed, compiled paper about this site. Further details are available in the above-listed contributions. 3. Materials and methods Data acquisition and processing were conducted for relatively long period, including first couple of years of pilot work, and a systematic ...
    ... that the slope material exhibits expected detachment mechanism, which fits into the progressive failure along developing joint concept, while the general retreat of the fallen rock mass is expectedly in the upslope direction. The SSE-facing joint set (daylighting on the rock face) and E-facing set ...
    ... prediction tool | Miloš Marjanović, Biljana Abolmasov, Zoran Berisavljević, Marko Pejić, Petko Vranić | IOP Conference Series: Earth and Environmental Science | 2021 | | 10.1088/1755-1315/833/1/012197 http://dr.rgf.bg.ac.rs/s/repo/item/0005680 Дигитални репозиторијум Рударско-геолошког факултета Универзитета ...

  • 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
    ... purification. The complexes [(TLtBu)PdCl]+ and [Pd(tpdm)Cl]+ were prepared according to published procedures [23,24]. Prepara- 0020-1693/$ - see front matter � 2011 Elsevier B.V. All rights reserved. doi:10.1016/j.ica.2011.11.031 Abbreviations: TLtBu , 2,6-bis[(1,3-di-tert-butylimidazolin-2-imino)methyl]pyri- ...
    ... Corresponding author. Tel.: +381 (0) 34300262; fax: +381 (0) 34335040. E-mail address: bugarcic@kg.ac.rs (Z.D. Bugaréic). 0020-1693/$ - see front matter © 2011 Elsevier B.V. All rights reserved. doi:10.1016/j.ica.2011.11.031 [18]. Furthermore, Pd(II) complexes generally formulated as trans- [PdX2(isn)2] ...
    ... nucleophiles (Fig. 1) in 0.1 M NaClO4 aqueous solution and in the presence of 10 mM NaCl to prevent spontaneously hydrolysis. 2. Experimental 2.1. Materials and methods The ligands thiourea (Kemika, Zagreb), NaI, KBr, NaNO2, pyridine (Zorka, Šabac) dimethylsulfoxide (DMSO) (Fluka)wereusedwithout further ...

  • BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties

    Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković (2023)
    To investigate the influence of spinel structure and sintering temperature on the functional properties of BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface from acetylacetonate precursors. As-prepared powders were additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the detailed examination of phase composition and morphology. The magnetic, dielectric, and ...
    ferroelectric, dielectric properties, magnetic properties, titanate/ferrite composites, phase composition
    ... of Chemistry, Technology and Metallurgy, Njegoševa 12, 11000 Belgrrade, Serbia ? - Faculty of Physics, University of Belgrade, Studentski Trg 12-16, 11000 Belgrade, Serbia Department of Materials, “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of ...
    ... D.; Ksenevich, V.; Bychanok, D.; Selskis, A.; uzhir, P.; et al.: The Phosphate-Based Composite Materials Filled with Nano-Sized BaTiOy and Fes3Oux: Toward the Unfired Multiferroic Materials. Materials 2021, 14, 133. [CrossRef] [PubMed] Omelyanchik, A.; Antipova, V.; Gritsenko, C.; Kolesnikova, V ...
    ... Serbia Faculty of Agriculture, University of Belgrade, Nemanjina 6, Zemun, 11000 Belgrade, Serbia Section for Amorphous Materials, Joint Laboratory for Advanced Materials of SASA, Faculty of Technical Sciences Čačak, University of Kragujevac, Svetog, Save 65, 32000 Čačak, Serbia * · Correspondence: ...

  • Terminological and lexical resources used to provide open multilingual educational resources

    Biljana Lazić, Danica Seničić, Aleksandra Tomašević, Bojan Zlatić (2016)
    Open educational resources (OER) within BAEKTEL (Blending Academic and Entrepreneurial Knowledge in Technology enhanced learning) network will be available in different languages, mostly in the languages of Western Balkans, Russian and English. University of Belgrade (UB) hosts a central repository based on: BAEKTEL Metadata Portal (BMP), terminological web application for management, browse and search of terminological resources, web services for linguistic support (query expansion, information retrieval, OER indexing, etc.), annotation of selected resources and OER repository on local edX ...
    otvoreni obrazovni resursi, leksički resursi, obrada prirodnih jezika, terminologija
    ... that the terminology is acquired systematically in all languages involved, which would lead to equivalent opportunities and up to date education materials. Firstly, a brief history and current state of the art of terminological resources are presented, followed by an overview of BAEKTEL (Blending ...
    ... is necessary because of the rich flexion of Serbian language and other similar languages of Western Balkans. Partners in BAEKTEL project produce materials in Serbian, Bosnian and Montenegrin language. When it comes to morphology, the aforementioned languages are quite similar, therefore it is possible ...
    ... dictionaries include semantic markers which allow the distinction between ijekavian, ekavian and ikavian pronunciation. Dictionaries cover both general lexica and proper names. Serbian morphological dictionaries are found in LADL (Laboratoire d'Automatique Documentaire et Linguistique) format. There ...

  • Application of the Final Flotation Waste for Obtaining the Glass-ceramic Materials

    Mira Cocić, Mihovil Logar, Suzana Erić, Viša Tasić, Snežana Dević, Saša Cocić, Branko Matović (2017)

  • Groundwater resources for drinking water supply in Serbia´s Southeast Pannonian basin

    Dušan Polomčić, Bojan Hajdin, Marina Ćuk, Petar Papić, Zoran Stevanović (2014)
    menadžment podzemnih voda, monitoring, kvalitet podzemnih voda, bilans, baza podataka

  • Legal framework for recultivation of degraded areas caused by mining exploitation

    Radmila Gaćina (2023)
    Prilikom površinske i podzemne eksploatacije uglja eksploatacioni sistemi oštećuju veće ili manje površine zemljišta. Iskustva pokazuju da su oštećenja zemljišta znatno veća kod površinske eksploatacije, gde je prostora degradiran ne samo u konturi rudnika i okoline, već se promene takođe dešavaju u prirodnom okruženju. U članku su predstavljeni rezultati studije zakonskih okvira rekultivacije u nekim zemljama sveta i u Srbiji. Praktično iskustvo rekultivacije pokazalo je da iskorišćenje i devastacija tokom rudarske aktivnosti predstavljaju opasnost ne samo za pogođena ...
    rekultivacija, melioracija, otkopavanje uglja, zakonska regulativa
    ... holder of the exploitation, the costs of rehabilitation and recultivation of the land on which the exploitation was carried out will be covered as a matter of priority from the liquidation or bankruptcy estate. Proposals for improved legal regulations in Serbia: • Toimprove or specify certain norms ...
    ... n of unused post-mining land inside and outside ex-mining zone. Land outside an ex-mining zone includes (1) landfill; (2) stockpiling of raw materials; (3) transportation roads; (4) plant/processing; (5) offices and housing. For the successfully recultivation and post-mining activities, few steps ...
    ... set of laws in the field of environmental protection also includes the protection of land from physical degradation and pollution by harmful materials. Only valid basic legal acts are listed here: – . Law on Environmental Protection, - _ Lawon Agricultural Land, - Waterlaw, - _ Law -on ...

  • Structural, Morphological and Electrical Properties of Multi-Doped Calcium Phosphate Materials as Solid Electrolytes for Intermediate Temperature Solid Oxide Fuel Cells

    Mirković M. Miljana, Došen, M. Anja, Erić P. Suzana, Stojmenović D. Marija, Matović Z. Branko, Rosić A. Aleksandra (2018)

  • Improvement of 1D geoelectric sounding by narrowing the equivalence range and identification, quantification and reduction of lateral effects using the tri-potential technique

    Filip Arnaut, Branislav Sretenović, Vesna Cvetkov (2022)
    General Earth and Planetary Sciences,General Environmental Science

  • New data for the geochemical determination of the solar pp-neutrino flux by means of lorandite mineral

    Pavićević Miodrag, Bosch F., Amthauer Georg, Aničin Ivan, Boev Blažo, Brüchle W., Faesterman, T., Henning W.F., Jelenković Rade, Pejović Vladan, Djurčić Zoran (2010)

  • Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду

    главни и одговорни уредник Душан Поломчић (2016)
    Рударско-геолошки факултет
    ... An integrated study of ther- mal treatment effects on the microstructure and magnetic properties of Zn- ferrite nanoparticles, Journal of Physics – Condensed Matter, 2013. 185. Štirbanović Z., Miljanović I., Marković Z.: Application of rough set theory for choosing optimal location for flotation tailings ...
    ... Meden A.: Composition re- lated properties of (Yb,Y)2O3 nanoparticles synthesized by controlled ther- mal degradation of AA complexes, Materials Chemistry and Physics, 2010. 8. Vučinić-Vasić M., Kremenović A., Nikolić Aleksandar S., Colomban P., Mazzerolles L., Kahlenberg V., Antić B.: Core and shell ...
    ... Energy Physics, 2012. 167. Stojanović J., Đorđević T., Karanović L.: Structural features of two novel alluaudite-like arsenates Cd1.16Zn2.34(AsO4)1.5(HAsO4)(H2AsO4)0.5 and Cd0.74Mg2.76(AsO4)1.5(HAsO4)(H2AsO4)0.5, Journal of alloys and com- pounds : an interdisciplinary journal of materials science ...

  • Investigation of nanostructured Ca0.9Er0.1MnO3 obtained by sucrose nitrate procedure

    Tijana B. Vlašković, Bojana Laban, Maja Milošević, Maria Čebela, Vladimir Dodevski, Milena Rosić (2023)
    ... in Multifunctional Material Science and Processing Serbian Ceramic Society Institute of Technical Sciences of SASA Institute for Testing of Materials Institute of Chemistry Technology and Metallurgy Institute for Technology of Nuclear and Other Raw Mineral Materials PROGRAM AND THE BOOK OF ...
    ... in Multifunctional Material Science and Processing Serbian Ceramic Society Institute of Technical Sciences of SASA Institute for Testing of Materials Institute of Chemistry Technology and Metallurgy Institute for Technology of Nuclear and Other Raw Mineral Materials PROGRAM AND THE BOOK OF ABSTRACTS ...
    ... : New Frontiers in Multifunctional Material Science and Processing (11 ; 2023 ; Beograd) Program ; and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences ...

  • 2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem

    Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov (2019)
    2D inversion, geoelectrical method, Wenner array, ecology, Ada Huja
    ... fibrous minerals do not react with water nor with acid solutions except chrysotile which in a reaction with acidic solutions can release toxic matter to the ecosystem. 3.2.2 Side effects of continuous disposal of polyethylene-terephthalate (PET containers) Polyethylene-terephthalate (PET) ...
    ... zone with a length of 56 m (252 m to 308 m of the profile line) can be noticed and it represents most likely sand, gravel and other construction materials. Decomposed waste has a lens-like geometry and retains a low resistivity value. It obtains that low value from the reaction with electrolytic ...
    ... in the near vicinity of the waste site indicates a neglecting attitude for the health of people, but also for the condition of the environment in general. This is best noticed in the completely wrong classification of forest classes in that area. Lateral resistivity changes in the disposed waste ...

  • Assessment of spa mineral water quality from Vrnjačka Banja, Serbia: geochemical, bacteriological, and health risk aspects

    Nebojša Đ. Pantelić, Simona Jaćimović, Jana Štrbački, Danijela B. Milovanović, Biljana P. Dojčinović, Aleksandar Ž. Kostić (2019)
    The goal of this study is to evaluate the quality of seven natural mineral water sources in the Vrnjačka Banja area used in the treatment of various diseases. The 24 macro- and microelements were determined by inductively coupled plasma optical emission spectrometry (ICP-OES). The results show that element content was within allowed limits of concentration, except for B, As, and Se. The evaluated content of these elements can be associated with geological and anthropogenic factors. The sample S6 contains ...
    Management, Monitoring, Policy and Law, Pollution, General Environmental Science, General Medicine

  • The use of biological markers in determination of origin and type of organic matter in the Tisza river sediments

    Snežana Štrbac, Gordana Gajica, Aleksandra Šajnović, Nebojša Vasić, Ksenija Stojanović, Branimir Jovančićević (2013)
    The objective of the study was to determine the origin and type of organic matter (OM) of the Tisza recent sediments along the distance of 153 km through the territory of Serbia. For this purpose group organic-geochemical parameters and biomarker compositions were used. All samples contain approximately same amount of OM, which was deposited under uniform, slightly reducing conditions. Based on the distribution of n-alkanes, the origin and type of OM could not be precisely estimated. However, n-alkane patterns ...
    sediments, Tisza River, organic matter, biomarkers, oil pollutants
    ... and soluble organic matter (bitumen 0.07–0.14 %) in the surface sediments remained approximately uniform. Based on the predefined quantities, it could not be assessed whether it was singenetic organic matter, or polluting matter of anthropogenic origin. The soluble organic matter was mainly represented ...
    ... content of singen- etic organic matter in recent sediments varies over a wide range from 0 to 80 %2 and therefore can not be used as an indicator of the origin of organic matter. For this reason, biomarker fingerprints typical for crude oils, as highly mature orga- nic matter, can be useful in evaluating ...
    ... presence of immature singenetic organic matter of terres- trial origin. The distributions of terpanes and steranes and the values of the cor- responding maturity parameters indicate that the Tisza River sediments, apart from immature singenetic organic matter, contain oil pollutants of anthropo- genic ...

  • VENTEX: An Expert System for Mine Ventilation Systems Analysis

    Ranka Stanković, Nikola Lilić, Ivan Obradović (1996)
    Analiza sistema za ventilaciju je komleksan proces, koji bazira na proračunu brojnih parametara, koji se odnose na: stanje mreže, provetrenost, stabilnost sistema, gubitke vazduha, klimatske uslove, gasno stanje, ugroženost od požara i opasne prašine. Navedeni problemi se uspešno rešavaju paketom SimVent, ali potpuno razumevanje i korišćenje dobijenih rezultata zahteva angažovanje iskusnog specijaliste iz oblasti ventilacije. Rešenje je nađeno u kreiranju ekspertnog sistema VENTEX, čija je baza znanja formalizacija ekspertskog znanja iz oblasti ventilacije rudnika. U radu je prikazana metodologija ...
    ekspertni sistem, ventilacija
    ... system is the evaluation of the general ventilation state of the mine. This global goal can be subdivided into a hierarchical structure of subgoals where each of these subgoals can be viewed as the estimation of a set of parameters which determine the general mine ventilation state. The ...
    ... fully exploited only by specialists in the field. Besides procedural knowledge encapsulated by numerical routines, the complexity of the subject matter requires a high level of expert knowledge and experience. This knowledge pertains to the heuristics experts use when they apply numerical methods ...
    ... INTRODUCTION One of the most important and also most complex problems encountered in mine ventilation systems analysis is the evaluation of the general ventilation state of the mine. An appropriate and reliable solution for this problem is vital for the safety of the working process in mines ...