Претрага

Упит dcterms_subject_txt:geological range

334 items

  • Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)

    Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik (2023)
    The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies of crystallography and structural defects are scarce. For clarification, we investigated a series of natural arsenopyrite crystals from the polymetallic Pb-Zn-(±Cu,Ag,Au,Sb,Bi,W) Šumadija-Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among them, samples from the Drenjak gold mineralisation showed near-stoichiometric FeAsS composition and were further investigated by conventional and high-resolution transmission electron microscopy methods. TEM revealed abundant planar crystallographic defects and epitaxial surface oxide layer ...
    Inorganic Chemistry, Condensed Matter Physics,General Materials Science, General Chemical Engineering, crystal structure, FeAsS, oxidation, TEM, XRPD
    ... [CrossRef] 13. Maksimović, Z.; Divljan, S. The Results of Geological-Petrographic Mapping, and Observation of Ore Occurrences in the Areas of Plana and Gokčanica on the Western Slopes of Željin. In Book of Abstracts S.A.N. XXXIIIL; Geological Institute S.A.N.: Belgrade, Serbia, 1953; Volume 5, pp. ...
    ... Ultra 250 strip detector in 1D standard mode with CuKau,>» radiation source (U = 40 kV and I= 30 mA). The XRPD patterns were collected in the 5–75 20 range, with a step of 0.01” and a data collection speed of 2? /min. The single-crystal low-background Si sample holder was used to minimise the background ...

  • 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

  • Centar za hidrogeologiju karsta - 15 godina nauke i struke

    urednici Saša Milanović, Ljiljana Vasić, Zoran Stevanović, Branislav Petrović (2023)
    Centar za hidrogeologiju karsta
    ... south-eastern Serbia was organized by members of the Karst Commission of Serbian Geological Society and CKH from May 15 to 17, 2015. It included touring of the terrains of Mt. Suva Planina, the Svrljig Mountain Range, Mt. Belava, and Mt. Stara Planina : e . ČOECO Učesnici ekskurzije ispred vodopada ...
    ... s (IAH), European geological union (EGU), Carpato-Balkan Geological Association (CBGA), member of the national committee since 2016, Bulgarian Geological Society (BGS), Serbian Geological Society (President of the Hydrogeology Section since 2012). 41 15 CKH Geological Engineer Department ...
    ... President of the Serbian Geological Society (2012-2016). He is Member of the Scientific Society of Serbia and Corresponding member of the Academy of Engineering Sciences of Serbia. Honorary member of the Hungarian Geological Society and member of the Bulgarian Geological Society. He was granted ...

  • Digital Library From A Domain Of Criminalistics As A Foundation For A Forensic Text Analysis

    Dalibor Vorkapić, Aleksandra Tomašević, Miljana Mladenović, Ranka Stanković, Nikola Vulović (2017)
    U ovom radu predstavljen je model koji omogućava prikupljanje, pripremu, opis metapodataka, upravljanje i eksploataciju, uključujući pretragu punog teksta dokumenata iz domena kriminalistike napisanih na srpskom jeziku. Predloženi pristup primenjuje se na veb portalu koji sakuplja različite tekstove nastale iz časopisa Akademije za kriminalistiku i policijske studije, Krivičnog zakona Srbije, konferencija „Tara“ i „Reiss“, kao i iz nekih doktorskih disertacija vezanih za ovu oblast istraživanje. Nakon obrade teksta, korpus koji sadrži preko 5500 stranica običnog teksta, kreiran je i ...
    Omeka, Wordnet, pretraga punog teksta, morfološka i semantička pretraga teksta, proširenje upita
    ... content.13 Web platform Omeka use Dublin Core as a standard for displaying metadata. The Dublin Core includes a set of elements to describe a wide range of sources in the network and aims to: simplicity in the creation and maintenance so that each user could make a set of descriptive statements un ...

  • 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
    ... specific sub-fields (sub-domains) (Kolonja et al., 2016). GeolISSTerm represents the core of GeolISS (GEOLogical Information System of Serbia), and it is implemented as an aggregation of geological vocabularies, collections of terms and text definitions of entities thought to exist in a domain or collections ...
    ... Dictionary of library and information sciences10 encompasses the terminology of theory and practice of librarianship and in- formation sciences and a wide range of close or related fields, in Serbian, English and German languages. The languages in this dictionary have equal status. Online version currently includes ...

  • Building learning capacity by blending different sources of knowledge

    Ivan Obradović, Ranka Stanković, Olivera Kitanović, Dalibor Vorkapić (2016)
    ... issues and query handling. Finally, besides the initial institutions involved, it is expected that this network will also attract a wider range of universities and enterprises to offer OER content within additional network nodes, which they would develop within their own institutions. In ...
    ... system features domain specific terminological resources such as GeolISS term and RudOnto (Stanković et al., 2012). GeolISS is a thesaurus of geological terms with entries in Serbian and English, developed at University of Belgrade, Faculty of Mining and Geology (UBFMG) within the GeolISS project1 ...

  • Polyhedral characteristics of the cosalite-type crystal structures

    Sabina Kovač, Predrag Dabić, Aleksandar Kremenović, Aleksandar Pačevski, Ljiljana Karanović, Marko V. Rodić, Martina Tribus (2019)
    kristalna struktura, kozalit, poliedarske karakteristike

  • Процена емисије гасова са ефектом стаклене баште као последице енергетске активности

    Горана Остојић (2024)
    Рад се бави анализом и проценом емисија гасова са ефектом стаклене баште, са посебним акцентом на емисије које настају као последица енергетских активности. Ефекат стаклене баште представља природни процес који је неопходан за одржавање живота на Земљи, али антропогене активности, попут индустријске производње и сагоревања фосилних горива, значајно повећавају концентрацију ових гасова у атмосфери, што доводи до климатских промена. Рад истражује узроке, последице и могућности за смањење емисија гасова, као и развој стратегија за ублажавање негативних ефеката на животну ...
    емисија гасова, ефекат стаклене баште, енергетске активности, климатске промене, мобилно сагоревање, стационарно сагоревање
    ... nocJeOuue eHepoemcke akmus6Hocmu [28] Stockholm Environment Institute (SEI). LEAP: Long-range Energy Alternatives Planning System. Available at: https://www.sei.org/projects-and-tools/tools/leap- long-range-energy-alternatives-planning-system/. [29] Meinshausen, M., 2011. "The RCP Greenhouse Gas ...
    ... KOMOHHallijH Ca JIDyrHM MOJIeJIHMa KaKO OH ce H3Bprina npenH3Ha HNpomeHa cMHCHJa Ha OCHOBy cnerM()HuHHX yCNOBa H nojaraka |[27]. 4. LEAP (Long-range Energy Alternatives Planning System) o LEAP je anar a3a Monenipambe eHepreTckux cHcTeMa KojH oMoryhaBa KOpHcHHIMHMa Jla aHajmHpajy H nmpenpBHDajy ...

  • The external aggregation Newton's method for solving nonlinear equations and applications

    Marija Paunović, Dejan Ćebić, Nebojša Ralević (2020)
    Њутнов метод, агрегациона функција, ред конвергенције

  • Exhumation history of the Juhor Mts. in central Serbia, the Northern Serbo–Macedonian Subunit

    Uros Stojadinovic, Hannah Pomella, Nemanja Krstekanić, Bojan Kostić, Maja Maleš, Nikola Randjelovic, Miloš Radonjić (2024)
    Northern Serbo–Macedonian Subunit, low-t thermochronology, kinematic analyses, extensional deformations

  • Синтеза, структурне и магнетне особине Ca1-xGdxMnO3 нанопрахова

    Milena Rosić (2014-12-05)
    У оквиру ове докторске тезе, испитиване су оптималне методе за добијањенанопраха – калцијум манганског оксида допираног јонима гадолинијума. Циљистраживања је испитивање одговарајућих прекурсора који су подесни да седобију чисти нано прахови манганита са перовскитском структуром, као имонофазни чврсти раствори са перовскитском структуром. Као подесан методкоришћена је модификована глицин нитратна метода, а од прекурсора нитрати иацетати одговарајућих метала. Модификација глицин нитратне методе се односина делимичну замену нитрата ацетатима, чиме је ублажена бурност реакције.Испитан је различити однос прекурсора, који дају наночестичне ...
    Наноструктурни материјали, Оксиди, Термална анализа,Рендгенструктурна анализа, Магнетна мерења.
    ... calcined in the temperature range of 850 o C to 950 o C 10 min. The temperature range in which they were considered calcined samples, obtained using differential thermal analysis (DTA). Experimentally determined optimal sintering temperature and they are in the range of 1350 to 1450 o C. Structural ...
    ... properties with the tolerance factor in a low-doped La0,875Sr0,125−xCaxMnO3, (0 ≤ x ≤ 0.125) system: cross-over from Mott to Shklovskii–Efros variable range hopping conduction, Journal Of Physics: Condensed Matter 19, 266218 (13pp). Bošković, S.B., Matović, B. Z., Vlajić, M. D., Krstić, V. D. (2007): ...

  • Multi-word Expressions for Abusive Speech Detection in Serbian

    Ranka Stanković, Jelena Mitrović, Danka Jokić, Cvetana Krstev (2020)
    Ovaj rad predstavlja istraživanja na usavršavanju i unapređenju srpske verzije rečnika Hurtlex, višejezičnog leksikona uvredljivih reči. Posebnu pažnju posvećujemo dodavanju izraza sa više reči (polileksemskih jedinica) koji se mogu smatrati uvredljivim, jer su takvi leksički zapisi veoma važni za postizanje dobrih rezultata u mnoštvu zadataka otkrivanja uvredljivog jezika. Srpski morfološki rečnici se koriste kao osnova za čišćenje podataka i stvaranje rečnika. Istaknuta je veza sa drugim leksičkim i semantičkim resursima na srpskom jeziku i predviđena je izgradnja sistema za ...
    uvredljiv govor, govor mržnje, leksički izvori, višejezični leksikon, izrazi sa više reči
    ... described since in our model one expression groups variations. 3Leximirka is an online application based on lexicographic database, covering a wide range of users (http://leximirka.jerteh.rs//) (Lazić and Škorić, ). 82 Figure 1: MWE editor in web portal Leximirka – description of a noun MWE bruka ...

  • Open Educational Resources in Serbia

    Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević (2020)
    Open educational resources, BAEKTEL, Metadata portal
    ... adapting and re-using these resources to suit the user’s context. 22 Chapter # - will be assigend by editors • Let teachers and learners see a range of alternative methods for extending and enriching the curriculum. • Encourage the practice of sharing, improving the quality and lowering the ...

  • Definition of Circulation Conditions and Groundwater Genesis of the Complex Krupaja Hydrogeological Karst System (Eastern Serbia)

    Ljiljana Vasić, Saša Milanović, Tina Dašić (2023)
    Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment, Geography, Planning and Development, Building and Construction
    ... hydrogeological, geological, speleological, speleo diving, and other research techniques, were used. The input data of the model represent real research data from 69 caves, 15 sinkholes, 1682 dolines, 7 major karst springs, and around 70 minor springs, as well as geological, morphological, and ...
    ... Major, Z.; Rinyu, L.; Toth, I. A mass spectrometric line for tritium analysis of water and noble gas measurements from different water amounts in the range of microlitres and millilitres. Isot. Environ. Health Stud. 2012, 48, 494–511. CrossRef] [PubMed] Vasić, L.; Živojinović, D.; Rajaković-Ognjanović ...
    ... speleological and speleo diving, research), all the way to completely scientific research and research related to solving a specific engineering / geological problem or hydrotechnical problem. Analysis of the geometry of the main karst conduits in the saturated zone, as well as their connection to ...

  • Towards Semantic Interoperability: Parallel Corpora as Linked Data Incorporating Named Entity Linking

    Ranka Stanković, Milica Ikonić Nešić, Olja Perisic, Mihailo Škorić, Olivera Kitanović (2024)
    U radu se prikazuju rezultati istraživanja vezanih za pripremu paralelnih korpusa, fokusirajući se na transformaciju u RDF grafove koristeći NLP Interchange Format (NIF) za lingvističku anotaciju. Pružamo pregled paralelnog korpusa koji je korišćen u ovom studijskom slučaju, kao i proces označavanja delova govora, lematizacije i prepoznavanja imenovanih entiteta (NER). Zatim opisujemo povezivanje imenovanih entiteta (NEL), konverziju podataka u RDF, i uključivanje NIF anotacija. Proizvedene NIF datoteke su evaluirane kroz istraživanje triplestore-a korišćenjem SPARQL upita. Na kraju, razmatra se povezivanje Linked ...
    paralelni korpusi, povezivanje imenovanih entiteta, prepoznavanje imenovanih entiteta, NER, NEL, povezani podaci, NIF, Vikipodaci

  • Истраживањe могућности коришћења нискотемпературних извора топлоте за одрживи развој енергетике градова

    Miodrag M. Grujić (2014-06-04)
    Одрживост је континуиран процес балансирања између животне средине, економске исоцијалне димензије, који се односи на системска побољшања животног окружења.Енергија се налази међу покретачима одрживог развоја везано за потребу за повећањесоцијалног благостања, његову кључну улогу у економском развоју и утицај на животнусредину. Урбане зоне, као центри потреба за енергијом и емисија угљеника, пружајузначајне могућности за промоцију одрживости енергетског система заједнице.Планирање нових енергетских капацитета, у складу са принципима одрживог развоја,обухвата спровођење политике повећања енергетске ефикасности и увођења обновљивихизвора енергије. Дисертација ставља ...
    одрживи развој, даљинско грејање, модел, сценарио, вишекритеријумскаанализа, нискотемпературни извори, ELECTRE, Београд
    ... energy systems should be initiated. Planning new facilities, in accordance with the principles of sustainable development, involves a wide range of energy efficiency measures and the introduction of renewable energy sources. The thesis emphasizes the use of renewable resources, primarily l ...
    ... the consumption of other forms of energy, fuel costs, and significantly reduced the negative impact on the environment. Taking into account a range of energy, economic and other assumptions leads to the estimation of future energy consumption. Since strategic planning refers to a relatively long ...
    ... roadmap for decision-making, looking at the problem from the wider community point of view. The decision taken in this way provides benefits for a wide range of stakeholders, and therefore provides a general goal, sustainable energy development of cities. Key words: sustainable development, district ...

  • Development of terminological resources for expert knowledge: a case study in mining

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Aleksandar Cvjetić (2015)

  • Bridging Computational Lexicography and Corpus Linguistics: A Query Extension for OntoLex-FrAC

    Christian Chiarcos, Ranka Stanković, Maxim Ionov, Gilles Sérasset (2024)
    OntoLex, dominantni standard zajednice za mašinski čitljive leksičke resurse u kontekstu RDF-a, Linked Data i tehnologija Semantičkog veba, trenutno se proširuje sa posebnim modulom za Frekvencije, Primere i Informacije zasnovane na Korpusu (OntoLex-FrAC). Predlažemo novi komponent za OntoLex-FrAC, koji se bavi inkorporacijom korpusnih upita za (a) povezivanje rečnika sa korpusnim mašinama, (b) omogućavanje RDF baziranih web servisa da dinamički razmenjuju korpusne upite i podatke odgovora, i (c) korišćenje konvencionalnih upitačkih jezika za formalizaciju unutrašnje strukture kolokacija, skica reči i ...
    standardizacija, digitalna leksikografija, OntoLex, upiti korpusa, povezani podaci, Lingvistički povezani otvoreni podaci

  • A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice

    Nikola Lilić, Ivan Obradović, Ranka Stanković (2002)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper, we ...
    ... developed using an expert systems shell, the KAPPA-PC applica- tions development system. KAPPA-PC is a MS Windows application that provides a wide range of tools for constructing and using applications by means of a high- level graphical environment, which generates standard C code. In the KAPPA-PC ...

  • Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings

    Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić (2018)
    ... displacement • Number of channels: three channels—speed, fourth channel—air channel • Number of components: three—transversal, vertical, side • Frequency range: 2–250 Hz • Location possibility: flat floors, boards, foundations, ground • Trigger level, V, L, T (trigger levels): 0.1–200 mm/s • Channel trigger ...
    ... equation defines the alteration in the velocity of rock mass oscillation depending on the distance, the quantity of explosives, blasting conditions and geological characteristics of the rock mass, and it is determined based on trial blasting for a specific work environment. Thus, this paper offers analysis ...