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Упит dcterms_subject_txt:geological range

329 items

  • Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)

    Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)

  • Linear-motor plunger pump increases lifting efficiency

    Bojan Martinović, Dušan Đekić, Dušan Danilović, Pavel Isaev (2022)
    plunger, linear, motor, pumps

  • Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining

    Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić (2024)
    reclamation, coal, sustainable development, multi-criteria decision making, VIKOR method

  • Stratigraphy and Microfauna (Radiolarians and Foraminifera) of the Upper Cretaceous (Upper Santonian–Lower Campanian) Carbonate Deposits in the Area of Struganik Village, Western Serbia)

    Liubov Bragina, Nikita Bragin, Luidmila Kopaevich, Nevenka Đerić, Nataša Gerzina Spajić (2020)
    Santonian, Campanian, radiolarians, planktonic foraminifera, biostratigraphy, limestones, Struganik, Serbia

  • Design of a sucker rod pumping system

    Ana Ponoćko (2024)
    For a long time in the history of oil production, sucker rod pumps have been the first and in many cases the only choice when it comes to mechanical extraction methods. Proper selection of each individual element of the system enables optimization, which entails benefits in the form of increased efficiency and reduced costs. The first part of the paper presents the underground and surface equipment of the rod pump and describes the operation of the entire system. The ...
    sucker rod pump, fluid production, mechanical extraction methods,, Prosper, QROD, RODSTAR
    ... steel with a solid round cross-section and are used to transmit energy from the surface equipment (horsehead) to the downhole pump. Their lengths range from 7.62 meters to 9.1 meters and feature reinforced male threads and a square section for gripping with wrenches during installation and removal ...
    ... [3]. The operational life of sucker rods depends on the quality of the material as well as the working conditions, including: maximum stress, the range of maximum and minimum stress, and the number of strokes per minute. All these factors affect material fatigue and the potential for rod failure ...

  • Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)

    Dušan Polomčić, Dragoljub Bajić, Jelena Zarić (2015)
    A groundwater flow model was developed to simulate groundwater extraction from the public water supply source of the City of Kikinda. The hydrodynamic model includes the municipal groundwater source of Kikinda (Šumice and the Jezero Well), but also an extended area where there are groundwater sources that provide water supply to three factories: (MSK, TM and LŽT - Kikinda). Hydrodynamic modeling, based on the numerical method of finite differences will show the groundwater balance of the sources in the ...
    Water supply, Aquifer, Flow, Groundwater regime, Numerical modeling, Particle tracking
    ... Figure 1. Geographic position of study area GEOLOGICAL SETTING OF THE STUDY AREA Extensive geological research (exploratory drilling, geophysical activities, paleontological investigations) has resulted in a relatively robust geological database [17]. The lithological units comprise Pliocene ...
    ... Harbaugh, A. W., Banta, E. R., Hill, M. C. and McDonald, M. G., MODFLOW-2000: The U.S. Geological Survey Modular Ground-Water Model, User Guide to Modularization Concepts and the Ground-Water Flow Process, U.S. Geological Survey Open-File Report 00-92, Reston, VA, USA, pp 121, 2000. 21. Rumbaugh, J ...
    ... According to pumping test data, the transmissibility coefficient in the extended area of Kikinda, depending on the locality in question, is in the range of (2.5-10) × 10-2 m2/s. Table 1 shows the hydrogeological parameters previously determined for the Kikinda area [19]. The aquifer extends beyond ...

  • Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering

    Josip Išek, Lazar Kaluđerović, Nikola Vuković, Maja Milošević, Ivana Vukašinović, Zorica Tomić (2020)
    γ-spectrometry, brushite, chukhrovite, phosphogypsum, radionuclides, recrystallization
    ... composition was determined using a Philips PW 1710 automated diffractometer, using: Cu-Ko: radiation (, = 1.54184 A) on randomly oriented powders in the range 4-60%0 with a scanning step of 1* min ". The tube current was set to 30 mA and the voltage to 40 kV. The identification of mineral phases followed ...

  • Increasing the Local Road Network Resilience from Natural Hazards in Municipalities in Serbia

    Biljana Abolmasov, Miloš Marjanović, Ranka Stanković, Uroš Đurić, Nikola Vulović (2024)
    lokalni putevi, prirodni hazardi, otpornost na klimatske promene, MaPLoRds

  • Модел померања терена услед утицаја рударских радова на основу радарских сателитских снимака

    Зоран Гојковић (2023)
    Површински коп, као систем који обезбеђује енергетску стабилност или снабдевање сировинама које су од изузетне важности за привредни напредак, својим функционисањем утиче на околна насељена места. Међу бројним аспектима овог утицаја, може се издвојити издвојити и анализирати утицај вертикалних и хоризонталних померања која се јављају на површи терена. Мониторинг вертикалних и хоризонталних померања површи терена околних насељених места треба да има што бољу временску резолуцију (временски период између праћења деформација) како би се вертикална и хоризонтална померања контролисала и ...
    Сентинел 1 интерферометрија, слегање, Перманентни скатерери, Костолац

  • Vodosnabdevanje podzemnim vodama u Srbiji-stanje i perspektive

    Dušan Polomčić, Zoran Stevanović, Petar Dokmanović, Petar Papić, Vesna Ristić-Vakanjac, Bojan Hajdin, Saša Milanović, Dragoljub Bajić (2011)
    ... Balkan Mountain Range “ (ed. Z. Stevanović, B. Filipović), pp.203-237, Spec.ed. of CBGA, Allston Hol. Co, Jersey 19. Stevanovic, Z., Filipovic, B. (1994): Hydrogeology of Carbonate Rocks of the Carpatho- Balkanides, In: Ground waters in carbonate rocks of the Carpathian- Balkan Mt range. Stevanović ...

  • Српски језик у дигиталном добу -- The Serbian Language in the Digital Age

    Duško Vitas, Ljubomir Popović, Cvetana Krstev, Ivan Obradović, Gordana Pavlović-Lažetić, Mladen Stanojević (2012)
    Serbian language
    ... systems is to ac- curately recognise the words a user utters. is means restricting the range of possible user utterances to a limited set of keywords, or manually creating language models that cover a large range of natural language ut- terances. Using machine learning techniques, language models can ...
    ... Analysing the deeper struc- tural properties of languages is the only way forward if we want to build applications that perform well across the entire range of Europe’s languages. European research in this area has already achieved a number of successes. For example, the transla- tion services of the European ...
    ... acquired, rather than compa- nies that have acquired other companies. For the expres- sion last five years, the system needs to determine the relevant range of years, taking into account the present year. e query then needs to bematched against a huge amount of unstructured data to find the pieces of infor- ...

  • Terminology Acquisition and Description Using Lexical Resources and Local Grammars

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić (2015)
    Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...
    ... Serbia. It contains terminology in Serbian, English and German, related to theory and practice of librari- anship and information sciences and a wide range of close or related fields. Table 2. Frequencies of terms of different lengths in samples from 3 termbases Dictionary Term length (in number ...
    ... s and followed by a word that does not inflect in the MWU, usually a noun in the genitive or instrumental case; e.g. geološko kartiranje terena ‘geological field mapping’. 6. NXN – a noun followed by a noun that agrees with it in number and case, where the separa- tor can be a hyphen; e.g. bager kašikar ...

  • An intelligent hybrid system for surface coal mine safety analysis

    Nikola Lilić, Ivan Obradović, Aleksandar Cvjetić (2010)

  • From DELA Based Dictionary to Leximirka Lexical Database

    Biljana Lazić, Mihailo Škorić (2020)
    In this paper, we will present an approach in transforming Serbian language Morphological dictionaries from a DELA text format to a lexical database dubbed Leximirka. Considering the benefits of storing data within a database when compared to storing them in textual documents, we will outline some of the functionality that the database has made possible. We will also show how hand-made rules that use category labels lexical entries are marked with can be used to link lexical entries. ...
    Morfološki rečnici, jezički resursi, Leksimirka
    ... use. 4 Leximirka application 4.1 Interface Leximirka application (http://leximirka.jerteh.rs//) is intended for two types of users covering a wide range of users. Those without a registered account can use it for searching, while registered users can access the man- agement and development interface ...

  • 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
    ... Huja": Eco-geological problem Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] 2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem ...
    ... great value for the examined terrain “Ada Huja” because underground water level was detected. 4 CORRECT ECOLOGICAL AND GEOLOGICAL CONDITIONS FOR A LANDFILL From a geological point of view, the most important aspect of a controlled and safe landfill is the isolation of the disposed waste. This ...
    ... of marl type rocks. That type of rock is porous but impermeable, in a hydrogeological sense (Šperl and Tročkova, 2008). Water level varies in the range of about 3 m, passing through the deposited waste of the surveyed subsurface forming an ecologic problem that will be discussed in the latter chapters ...

  • 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 ...