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Упит dcterms_subject_txt:document classification

238 items

  • Three new Sr-bearing arsenates, hydrothermally synthesized in the system SrO–MO–As2O5–H2O (M2+ = Mg, Cu, Zn)

    Tamara Đorđević, Ljiljana Karanović (2018)
    During systematic research on the mineral-related synthetic arsenates, with particular focus on their structural and spectroscopic classification, three new Sr-containing arsenates Sr2Mg(AsO4)2· 2H2O (1), Sr2Zn4(AsO4)4·H2O (2) and Sr2Cu7(AsO4)6 (3) have been synthesized under low-temperature hydrothermal conditions in the system SrO MO As2O5 H2O (M 2þ = Mg, Zn, Cu). Their crystal structures were determined using room-temperature single-crystal X-ray diffraction data and refined to the following R-values: 1– R1 = 0.025; 2– R1 = 0.030; 3– R1 = 0.035. Compounds ...
    стронцијум, арсен, арсенати, кристална структура, дифракција рендгенских зрака на монокристалима, хидротермална синтеза, Раманска спектроскопија

  • Overwiew of In-Pit Crushing & Conveying Technology in Open Pit Mines

    Ali Nasirinezhad, Dejan Stevanović, Dragan Ignjatović, Petar Marković (2021)
    The conditions under which contemporary surface mining operations is carried out obviously becoming increasingly complex. In such complex conditions, the optimization of haulage systems as the technological phase with the largest share in the total operating costs, is very important from the aspect of achieving profitability of the mining project. In a large number of cases, the application of traditional haulage systems with trucks (as the most dominant type of haulage in open pit mines) does not lead to ...
    In Pit Crushing and Conveying, IPCC, open pit mining, haulage, optimization, costs saving

  • Extreme Rainfall Event and Its Aftermath Analysis—IPL 210 Project Progress Report

    Biljana Abolmasov, Mileva Samardžić Petrović, Ranka Stanković, Miloš Marjanović, Jelka Krušić, Uroš Đurić (2021)
    Landslides, Extreme precipitation, Data analysis, IPL project report

  • Two approaches to compilation of bilingual multi-word terminology lists from lexical resources

    Branislava Šandrih, Cvetana Krstev, Ranka Stanković (2020)
    In this paper, we present two approaches and the implemented system for bilingual terminology extraction that rely on an aligned bilingual domain corpus, a terminology extractor for a target language, and a tool for chunk alignment. The two approaches differ in the way terminology for the source language is obtained: the first relies on an existing domain terminology lexicon, while the second one uses a term extraction tool. For both approaches, four experiments were performed with two parameters being ...
    Linguistics and Language,Software,Artificial Intelligence,Language and Linguistics

  • Značaj izvodjenja Proktorovog opita na komunalnom otpadu

    Jovana Janković, Dragoslav Rakić, Tina Đurić, Irena Basarić Ikodinović, Laslo Čaki (2019)
    Komunalni otpad predstavlja jedan od ključnih problema današnjice. U Srbiji je najčešći vid odlaganja otpada na komunalne deponije i zbog toga je bitno ispravno i sigurno ga skladištiti. Zbijanje komunalnog otpada predstavlja jednu od osnovnih komponenti procesa odlaganja. Kako bi se što bolje predvidelo ponašanje komunalnog otpada neophodno je pre zbijanja na terenu laboratorijski odrediti maksimalnu suvu zapreminsku težinu i optimalnu vlažnost. U dosadašnjoj praksi u svetu za to se koristi standardizovan Proktorov opit. U radu će biti prikazani ...
    komunalni otpad, zbijanje, deponija, Proktorov opit
    ... including: Some of the authors of this publication are also working on these related projects: Contribution to municipal waste geotechnical classification View project WBIF (Western Balkans Investment Framework), EWBJF: WB13-SER-TRA-01, View project Jovana Janković University of Belgrade 7 PUB ...
    ... hAMTU4Njk3NDA4MjE4Mg%3D%3D&el=1_x_3&_esc=publicationCoverPdf https://www.researchgate.net/project/Contribution-to-municipal-waste-geotechnical-classification?enrichId=rgreq-78bf53eab1d6b47e8a972adda0488f0f-XXX&enrichSource=Y292ZXJQYWdlOzM0MDY2MDMwMTtBUzo4ODA2NDcyODM0Mzc1NjhAMTU4Njk3NDA4MjE4Mg%3D%3D& ...

  • Punctuated, episodic magmatism and mineralization of the Rogozna skarn-hosted Au-Zn-Pb-Cu deposits revealed through high-precision U-Pb zircon geochronology

    Sean P. Gaynor, Milorad D. Antić, Vladica Cvetković, Kristina Šarić, Urs Schaltegger (2023)
    The subvolcanic regions of magmatic centers are commonly associated with alteration, mineralization, and economic ore deposits, however the duration and frequency of mineralizing pulses within the overall lifespan of these centers can be poorly defined. Therefore, models for the formation of mineral systems require more highprecision geochronology data to refine their evolutionary models. Rogozna Mountain and its eponymous magmatic complex, located in SW Serbia, hosts multiple base metal deposits associated with variable rock types and structural expressions and serves as a natural laboratory to ...
    Skarnovska mineralizacija, Magmatsko-hidrothermalni sistemi, Subvulcanske intruzije, geohronologija na cirkonima, CA-ID-TIMS

  • Building learning capacity by blending different sources of knowledge

    Ivan Obradović, Ranka Stanković, Olivera Kitanović, Dalibor Vorkapić (2016)
    ... maybe archived or even deleted. The main element of technical data is the resource format, indicating whether it is an electronic or printed document, a set of slides, a website, or a cd-rom/dvd, audio, or video. Other technical data are the resource size, given in bytes for digital resources ...
    ... Author information retrieval, OER indexing and classification, and the like, are also available. Figure 1: Conceptual map of BAEKTEL network The edX platform, used in BAKTEL nodes for publishing ...
    ... describing a learning resource into nine categories: general, lifecycle, meta-metadata, technical, educational, rights, relation, annotation and classification. It has more than 70 available 1 http://dublincore.org/ ...

  • Geostatički proračuni sanacije klizišta šipovima

    Slobodan Ćorić, Dragoslav Rakić, Dušan Berisavljević (2019)
    U ovom radu su, polazeći od rezultata geotehničkih istraživanja, prikazani geostatički proračuni sanacije klizišta vertikalnim šipovima. Metodologija proračuna je složena, jer podrazumeva interakciju klizišta i stabilizirajućih šipova. Stoga se simultano analiziraju stabilnost klizišta i stabilnost šipova. Prilikom određivanja bočne otpornosti tla oko šipova koristi se metoda Brinč Hansena koja uzima u obzir trodimenzionalne uslove u tlu i može da se primeni u složenim geološkim uslovima koji su česti u Srbiji. Analize stabilnosti klizišta vrše se odgovarajućim metodama granične ravnoteže. ...
    sanacija klizišta, interakcija klizišta i šipa, bočna otpornost šipova, stabilnost klizišta i šipova
    ... 3 authors: Some of the authors of this publication are also working on these related projects: Contribution to municipal waste geotechnical classification View project WBIF (Western Balkans Investment Framework), EWBJF: WB13-SER-TRA-01, View project Slobodan Ćorić 28 PUBLICATIONS   17 CITATIONS    ...
    ... hAMTU4Njk3Mzg0ODg5NQ%3D%3D&el=1_x_3&_esc=publicationCoverPdf https://www.researchgate.net/project/Contribution-to-municipal-waste-geotechnical-classification?enrichId=rgreq-03b5d93fedba1dbedbfc74d0de7902d4-XXX&enrichSource=Y292ZXJQYWdlOzM0MDY2MDM3NztBUzo4ODA2NDYzMDE5NjYzMzhAMTU4Njk3Mzg0ODg5NQ%3D%3D& ...

  • Mineral and Thermal Waters of Serbia: Multivariate Statistical Approach to Hydrochemical Characterization

    Maja Todorović, Jana Štrbački, Marina Ćuk, Jakov Andrijašević, Jovana Šišović, Petar Papić (2016)

  • The ‘Umka’ landslide

    Uroš Đurić, Dragana Đurić, Miloš Marjanović, Biljana Abolmasov, Ivana Vasiljević (2024)
    We present an in-depth landslide map of the ‘Umka’ landslide near Belgrade, Serbia, at a scale of 1:5000. The map delineates elements at risk, primarily buildings and road infrastructure impacted by the landslide displacements of several cm per year, introduced during frequent reactivation stages. The Main map results from a survey of over 350 buildings and more than 7 km of state and local roads. The acquisition techniques included engineering geological field mapping, building survey, and visual interpretation of ...
    rizik od klizišta, elementi rizika, kartiranje pomoću drona, ispitivanje objekata, geotehnički monitoring

  • Properties of fly ash and slag from the power plants

    Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić (2016)
    This paper describes the physical, chemical and mineral properties of ash and slag, which were taken from thermal power plants Nikola Tesla A, Nikola Tesla B, Kostolac A and Kostolac B. The knowledge of the mineralogical material composition is important because the type of minerals directly determines the properties of the fly ash and slag and their possible application. Laboratory tests showed that ash and slag samples consist of the following minerals: amorphous materials, quartz, feldspar, mullite, melilite, cristobalite, ...
    fly ash, slag, physical composition, chemical composition, mineral composition, X-ray diffraction method
    ... Based on the chemical composition the module R is deter- mined, and is shown in Fig. 5. The R module is used for deter- mination of ash and slag classification according to the chem- ical composition. The formula for determining the R module is: 2 3 2 3 ( ) ( ) SiO AlO R CaO MgO Fe O + = + + ...
    ... for month June; (s) – slag; NT – Nikola Tesla; KO – Kostolac). G eo lo g ia C ro a ti ca Geologia Croatica 69/3322 According to this classification, fly ash from PPNT A for May and June belongs to the aluminum-silicate group, and slag belongs to a silicate group, because the module is in ...
    ... L. & VASSILEV, C. (2013): An overview of the composition and application of biomass ash. Part 1. Phase-mineral and chemical composition and classification.– Fuel, 105, 40–76. VASSILEV, S., BAXTER, D. & VASSILEV, C. (2014): An overview of the behaviour of biomass during combustion: Part II. Ash fusion ...

  • Geochemical evaluation of dolostone deposits in Montenegro: Implications for potential industrial applications

    Darko Bozovic, Vladimir Simic, Dragan Radulovic, Slobodan Radusinovic, Vesna Matovic, Anja Terzic (2024)
    This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability, and low costs. These subsystems are usually part of the thermal power plant’s coal supply system and ensure stable fuel supply. The model integrates various independent partial ...
    примарне сировине, минералогија, физичко-механичка својства, технолошка својства, наука о материјалима

  • Quantitative landslide risk assessment in the city of Tuzla

    Miloš Marjanović, Biljana Abolmasov, Cvjetko Sandić, Miralem Mulać, Petar Begović (2021)
    In the climate-changing conditions, geological environment interacts more dramatically with the urban fabric than before. The urbanization is expansive and more aggressive than before, but so are the weather extremes and long-term climate trends. In effect, many processes which can be triggered by either side, nature or engineering, are becoming more pervasive than before, and such is the case with landslides. Dealing and managing landslides requires few crucial steps, starting from collecting data on landslide location and typology – ...
    "landslides", "risk assessment"
    ... connection between landslide and non-landslide occurrences against the conditioning factors – optimizing the model – fitting the classification function; applying the classification function to the unseen instances in the remaining testing/validating area; outputting a map of extrapolated landslide and ...
    ... indicate an excellent example on how including additional tools to the common landslide susceptibility assessment refines the analysis. Typical classification task performed by using SVM in this particular case, normally outputs specific landslide classes. In this case class replication was as follows: ...

  • Srbija u OneGeology Europe

    Danka Blagojević, Ranka Stanković, Petar Stejić, Velizar Nikolić (2014)
    Геолошки завод Србије као носилац Пројекта ОneGeologyEurope заједно са Рударско геолошким факултетом и Министарством за природне ресурсе, рударство и просторно планирање су се укључили у међународни Пројекат OneGeology Europe у мају 2013. године у већ поодмаклој фази израде Пројекта. До краја 2013. године испунили су завршене активности које треба да доведу до пуноправног укључења у Пројекат чиме је Република Србија нашла своје место на Геолошкој карти Европе 1:1М. Геолошка карта Србије 1:1М представља компилациону односно поједностављену верзију ОГК 1:500 ...
    OneGeologyEurope, метаподаци, хармонизација података, вишејезични мета-информациони систем
    ... of earlier initiatives, 1G-E made a geological vocabulary that describes the lithology, age and genesis of rocks and tectonic structures. This document provides descriptions of geological vocabulary, concepts, definitions of concepts and their mutual relations. Its use is an obligation for all ...
    ... activities of earlier initiatives, 1G-E made a geological vocabulary that describes the lithology, age and genesis of rocks and tectonic structures. This document provides descriptions of geological vocabulary, concepts, definitions of concepts and their mutual relations. Its use is an obligation for all pa ...
    ... http://pubs.usgs.gov/of/2007/1285/pdf/Richard.pdf Struik, L.C. Quat, M.B. Davenport, P.H. and Okulitch, A.V. (2002): Multi-hierarchical rock classification for use with thematic computer-based query systems, a preliminary scheme. Geological Survey of Canada, Current Research 2002D, 9 p. Тривић ...

  • Geologic Information System of Serbia

    Branislav Blagojević, Branislav Trivić, Ranka Stanković, Nenad Banjac, Olivera Kitanović (2011)
    Geologic information system of Serbia (GeolISS) represents repository for digital archiving, query, retrieving, analysis and geologic data visualization. The GeolISS is implemented through ESRI ArcGIS technology, and is designed to operate as a personal geodatabase (MS Jet 4.0 Engine) and SDE enterprise geodatabase in MS SQL Server. The objective of GeolISS implementation is integration of existing geologic archives, data from published maps at different scales, newly acquired field data, as well as Web publishing of geologic information. Physical implementation ...
    Geologic information system, Conceptual model, Logical model, Implementation, Geodatabase
    ... ips. Concept represent the core of GeolISS that is implemented as compilation of geologic vocabularies such as petrologic and mineralogic classification, geologic time scale, stratigraphic lexicon etc. The terms in the vocabularies are used to classify observations/interpretations, or to specify ...

  • SASA Dictionary as the Gold Standard for Good Dictionary Examples for Serbian

    Ranka Stanković, Branislava Šandrih, Rada Stijović, Cvetana Krstev, Duško Vitas, Aleksandra Marković (2019)
    У овом раду представљамо модел за избор добрих примера за речник српског језика и развој иницијалних компоненти модела. Метода која се користи заснива се на детаљној анализи различитих лексичких и синтактичких карактеристика у корпусу састављених од примера из пет дигитализованих свезака речника САНУ. Почетни скуп функција био је инспирисан сличним приступом и за друге језике. Дистрибуција карактеристика примера из овог корпуса упоређује се са карактеристиком дистрибуције узорака реченица ексцерпираних из корпуса који садрже различите текстове. Анализа је показала да ...
    Српски, добри примери из речника, аутоматизација израде речника, издвајање својстава, Машинско учење
    ... represented as feature- vectors, are used with the GDEX ranking tool for Serbian candidate examples and a supervised machine learning model for classification on standard and non-standard Serbian sentences, for further integration into a solution for present and future dictionary production projects ...
    ... to information about the headword of dictionary entry, its part of speech and linguistic labels assigned to the headword and lexical unit. A classification of labels is also incorporated in the database to provide clustering of dictionary (sub)entries using several criteria: by domain (for terminology ...
    ... eLex 2019 ellipsis (deletions from the original sentences), inserted segments and lexicographic labels, but they are used for example classification, not for ranking (see Section 4). The analysis showed that a group of features can be used as filter features, namely, as strong indicators ...

  • Determination of Mechanical Properties of Altered Dacite by Laboratory Methods

    Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović (2021)
    This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...
    Geology, Geotechnical Engineering, Engineering Geology
    ... Obtained σci TX and constant mi dependences define more reliable rock material strength parameter values, which can be used, along with rock mass classification systems, as a basis for assessing rock mass parameters. Therefore, it is possible to predict the strength parameters of the heterogeneous rock ...
    ... Obtained 7 ,;!* and constant m; dependences define more reliable rock material strength parameter values, which can be used, along with rock mass classification systems, as a basis for assessing rock mass parameters. Therefore, it is possible to predict the strength parameters of the heterogeneous rock ...
    ... flysch using laboratory methods. Eng. Geol. 2013, 166, 81–89. [CrossRef] 2. Duffault, P. Structural weaknesses in rocks and rock masses: Tentative classification and behaviour. In Proceedings of the ISRM International Symposium, Tokyo, Japan, 21–24 June 1981. 3. Goodman, R.E. Engineering Geology; John Wiley ...

  • Characterization and Environmental Evaluation of Recycled Aggregates from Construction and Demolition Waste in Belgrade City Area (Serbia)

    Filip Abramović, Miroslav Popović, Vladimir Simić, Vesna Matović, Radmila Šerović (2024)
    General Materials Science

  • Towards a Mining Equipment Ontology

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... hypernym is a more general term than its hyponym(s) and hence on a higher hierarchical level. As we have already mentioned, such hierarchical classification of concepts are taxonomies, usually represented by a tree structure. However, many other semantic relationships that might exist between concepts ...
    ... translational equivalents (in this case English). The software solution developed enables the management of mechanization identification and classification, general maintenance data, structure (components) and technical characteristics. The goal is to create a database of available equipment, which ...
    ... Figure 4: Panel for management of mining engineering terminology In Figure 5, the left hand side of the panel depicts the predefined classification of equipment types and their groupings, while the right hand size depicts parameters assigned to a specific type of equipment, or its group component ...

  • Preliminary regional landslide susceptibility assessment using limited data

    Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska (2019)
    In this paper a heuristic approach for preliminary regional landslide susceptibility assessment using limited amount of data is presented. It is called arbitrary polynomial method and takes into account 5 landslide conditioning parameters: lithology, slope inclination, average annual rainfall, land use and maximum expected seismic intensity. According to the method, in the first stage, a gradation is performed for each of the carefully selected conditioning parameters by assigning so called rating points to the grid cells on which the ...
    klizišta, podložnost
    ... development (for example the use of distance to road or distance to drainage fac- tors), subjectivity of the engineering-geological classification methods (rock mass classification), precision of measuring instru- ments, etc. As shown by MIHALIĆ ARBANAS et al., (2016), even very high resolution bare-earth ...
    ... summing the individual rating points of each parameter and divid- ing the region into five susceptibility zones according to Jenks natural breaks classification. Ver- ification of the TLSR model is then performed by overlaying the landslide inventory map of the selected region over the prepared susceptibility ...
    ... calculation of the TLSR value for each grid cell, the terrain is divided into 5 classes of landslide susceptibility using Jenks natural breaks classification (very low, low, medium, high, very high). By overlaying the generated TLSR model map with the available inventory map of landslides of a particular ...