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Упит dcterms_subject_txt:Timok Magmatic Complex

534 items

  • Towards a Mining Equipment Ontology

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... more complex semantic relations also exist in the form of ontologies, such as the equipment ontology developed within the Brazilian Oil Company [9]. The basic aim of an ontology, as the most complex terminological resource, is to offer a comprehensive ...
    ... for other types of equipment were subsequently developed within the scope of the Technological coal mine information system [5]. A slightly more complex terminological resource in the form of a thesaurus was developed for geological terms, with more than 3000 terms and their English equivalents, within ...
    ... specialized areas has ultimately led to the idea of a general terminological resource for mining engineering. Hence RudOnto was conceived, as a complex terminological resource, aimed at covering the larger area of mining engineering and becoming the reference resource for mining terminology in Serbian ...

  • Using Query Expansion for Cross-Lingual Mathematical Terminology Extraction

    Velislava Stoykova, Ranka Stanković (2018)

  • The influence of Al<sup>3+</sup>ion on porcine pepsin activity<i>in vitro</i>

    Vesna M. Pavelkić, Kristina R. Gopcević, Danijela Z. Krstić, Marija A. Ilić (2008)
    The in vitro effect of Al3þ ions in the concentration range 1.7·1026M–8.7·1023M on pepsin activity at pH 2, via kinetic parameters and its electrophoretic mobility was evaluated. Kinetic study demonstrated the existence of an activation effect of Al3þ at pH 2 on pepsin molecule. Kinetic analysis with respect to concentrations of haemoglobin showed that Al3þ ions increase the maximal velocity (Vmax) and kcat values rather than apparent affinity for substrate (KS) implying the non-competitive nature of activation which indicated ...
    Пепсин, алуминијум, кинетика, активација, електрофоретска мобилност
    ... saturating concentration of activator (Aso), and also dissociation constant KA for enzyme- activator complex (Figure 4) [32]. The calculated values of KA and Aso for pepsin-aluminium complex were 8.82 + 0.90 „M and 8.05 + 0.48 M, respect- ively, that is consistent with a non-essential partial ...
    ... ng complexes were evaluated as 0.004 + 0.083 mM and 8.56 + 0.51 u.M, respectively. Dissociation constant KA, of activator from enzyme-activator complex calculated via kinetic and direct measurement of AL? binding data, as well as activation constant Aso, the activator concentration that gives a ...
    ... ion in living system is very low. Aluminium can occur in a number of different forms in water, and his chemistry in water solutions is very complex where many chemical parameters, including pH, determine which aluminium species are present in aqueous solutions. Aluminium enters the human ...

  • The Late Devonian contraction along the Precaspian Basin north margin: Transpressional range building in the intracratonic domain

    Novak Novčić, Marinko Toljić (2023)
    The evolution of intraplate sedimentary basins located in the vicinity of an active convergent plate boundary is often controlled by the collisional dynamics of the adjacent orogen. The transfer of compression from the orogen to the platform's interior results in the formation of complex structural geometry and kinematics that often reactivate older crustal faults, focus far-field stresses and control the evolution of associated sedimentary basins. One place where this localisation can be optimally understood is the Precaspian Basin, situated ...
    Intrakratonske deformacije, transpresija, kosa kompresija, krustalni rasedi, intrakratonski transfer stresa, kontrakcioni blokovi

  • 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
    ... of the geotechnical investigations results, geostatic calculations for landslide stabilisation by vertical piles. The calculation methodology is complex, because it is based on the interaction between landslide and stability piles. In accordance to that, landslide stability analysis and pile stability ...
    ... lateral resistance of piles is calculated by Brinch Hansen method. It includes three-dimensional effects of surrounding soil and can be applied in complex geological conditions which are very often in Serbia. The landslide stability is analysed by appropriate limit equilibrium methods. In proposed ...

  • An intelligent hybrid system for surface coal mine safety analysis

    Nikola Lilić, Ivan Obradović, Aleksandar Cvjetić (2010)

  • A Tel Platform Blending Academic And Entrepreneurial Knowledge

    Ivan Obradović, Ranka Stanković, Jelena Prodanović, Olivera Kitanović (2013)
    ... that explain them in more detail. Thesauruses feature a more complex semantic structure with relations such as holonymy/meronymy (part of) and the like, and are most often related to a specific domain. Semantically most complex are ontologies, where new knowledge can be derived from already ...
    ... affordable way "is a demanding task, which requires creativity and a significant amount of expertise. Designing for effective learning is a complex problem involving the design of learning tasks, learning resources and divisions of labor that enable each learner to learn effectively." [4] There ...
    ... different forms. Indexes are the simplest form, basically just lists of terms, usually arranged in alphabetical order. Glossaries are slightly more complex and they can be monolingual, bilingual or multilingual. They are lists of terms with definitions, and in the case they are bilingual or multilingual ...

  • Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)

    Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović (2020)
    Geochemistry and Petrology

  • 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
    ... ekspertnih sistema KAPPA-PC, zasnovana na konceptu okvira. Abstract - Problems relating to mine ventilation system analysis are usually of a very complex nature. They involve the estimation of numerous interdependent parameters pertaining to the network status, ventilation status, ventilation system ...
    ... architecture of the system and outlines the main features of the implemented system. 1. 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 ...
    ... coupled numerical and symbolic systems (Kowalik, 1986). The successful implementation of a coupled system requires the solving of a number of complex problems in order to obtain efficient communication between the symbolic and the numerical part of the system. In order to cope with this problem ...

  • Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations

    Ivana Vasiljević, Snežana Ignjatović, Branislav Sretković (2024)
    The type of dip-slip faults can be assessed based on the analysis of vertical gravity gradients. Theoretically, just a simple comparation of the gradient extreme values can give us an answer whether the fault is normal or reverse (thrust). Practical application of this method is far more complicated and the results depend on a number of parameters, such as a complexity of geological setting, the quality of gravity data, dip angle and displacement of the fault, density contrast, etc. ...
    dip-slip faults, vertical gravity gradients, field data analysis
    ... summary influence of multiple sources and consequently, they are often very complex. Separating residual and regional gravity anomalies helps to extract anomalies caused by the faults, especially in the cases of complex tectonic setting. Another useful technique is the application of different ...
    ... Karaman, Mileva Milić TeoxpoHounnoruja u HaoronnHa IFeojmoruja NEW INFORMATION ON THE AGE OF THE PEGMATITES OF CANISTE (PELAGONIAN METAMORPHIC COMPLEX), NORTH MACEDONIA Jvan Boev, Tena Ivanova Sijakova Sonja Lepitkova 12 19 27 32 35 42 49 Munepozioruja, Ilerpo.toruja u feoxeuja ...
    ... describe the inclined fault (Essa et al., 2021), if the density contrast (Ao) is known. In practice, however, the situation is often far more complex than the theoretical models describe and the IIlerru KogHrpec Ha I econosaare Ha PenyOnka CeBepHa MakcJuoHuja Fifth Congress of Geologists of ...

  • An Approach to Management Decision Support: The Coal Mine Pljevlja Management Information System

    Božo Kolonja, Ranka Stanković, Filip Vuković, Ivan Obradović (2006)
    In this paper we describe the approach that has been used in the development of the Management Information System (MIS) in the Coal Mine Pljevlja in Montenegro. The methodology of this approach was based on new information technologies and management techniques which have already been successfully applied in other related fields. Its main goal was to introduce modern management techniques to mining, adapted to specific features of the mining industry, its operations and environment, thus enabling the tactical management ...
    ... the mining management, especially on the tactical level, to initiate enhancements of production processes, as well as the development of more complex components of management. The first results showed that considerable reduction of transportation costs are possible and the coal mine top management ...
    ... analysts to interactively examine and manipulate large amounts of detailed and consolidated data from many perspectives. OLAP involves analyzing complex relationships among thousands or even millions of data items stored in multidimensional databases to discover patterns, trends, and exception ...
    ... including consolidation, “drill- down” and “slicing and dicing”. Consolidation involves the aggregation of data. This can involve simple roll-ups or complex grouping involving interrelated data. For example, production by each production unit can be rolled up to production by type of equipment and further ...

  • Self-Engineering: Possibilities for Maintenance Operations in the Mining Machines Industry

    Steven Manders, Milorad Pantelić, Vladimir Milisavljević, Alberto Martinetti (2021)
    Self-engineering is a relatively new branch of knowledge that aims to understand how systems could “autonomously” re-configure or repair themselves without the intervention of the operators. A direct field of application is within the maintenance spectrum. Having systems or machines capable of self-detecting or even self-repairing could represent a game-changer, in capital asset fields such as the mining industry in particular. This paper aims to investigate the possible benefits and challenges of self-engineering / self-maintenance concerning mining machines, specifically bucket-wheel ...
    self-engineering, self-maintenance, maintenance operations, mining industry, bucket-wheel excavator, gearbox revitalization

  • Fluid inclusion systematics in the Okoška gora polymetallic deposit

    Aleš Šoster, Miloš Velojić, Barbara Potočnik Krajnc, Matej Dolenec (2021)
    ... marble and quartzite, which underwent amphibolite grade metamorphism during the Cretaceous. The Pohorje series was emplaced by several episodes of magmatic activity, which can be roughly divided into pre- and post-metamorphic events. Preceding the metamorphism are Permian (Chang et al., 2020) granitic ...

  • Definition of groundwater genesis and circulation conditions of the complex hydrogeological karst system Mlava–Belosavac–Belosavac-2 (eastern Serbia)

    Ljiljana Vasić, Saša Milanović, Zoran Stevanović, Laszlo Palcsu (2020)
    Geochemistry and Petrology

  • Antioxidant and antimicrobial activity of some tetradentate Schiff bases and their Cu (II) complexes

    Aleksandar Mijatović, Milan Nikolić, Snežana Spasić, Aleksandra N. Žerađanin, Kristina Joksimović, Aleksandar Lolić, Rada Baošić (2020)
    Šifove baze i njihovi Cu(II) kompleksi su poznati po svojoj biološkoj aktivnosti. U ovom radu proučavana je antibakterijska aktivnost protiv gram-negativnih sojeva Escherichia coli, Pseudomonas aeruginosa i Staphilococcus piogenes, kao i Gram-pozitivnih Staphilococcus piogenes i Pseudomonas aeruginosa, zajedno sa antifungalnim dejstvom protiv Musperg strainilusa, A. Takođe, tehnički jednostavni i brzi testovi kao što su ABTS, HORAC i ORAC korišćeni su za ispitivanje antioksidativne aktivnosti kako bi se uporedili dobijeni rezultati sa različitim tipovima testova. Uprkos tome što je princip ...

  • 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

  • Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)

    Ljiljana Vasić, Saša Milanović, Anita Puskás-Preszner, Laszlo Palcsu (2020)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Razvoj ARCGIS geobaze površinskog kopa korišćenjem UML CASE alata

    Aleksandra Tomašević, Ljiljana Kolonja, Ivan Obradović, Ranka Stanković, Olivera Kitanović (2012)
    ... used that have a built-in system for storing and indexing both alphanumeric and geometric data. The Irish company ESRI2 created one of the most complex GIS platforms named ArcGIS®. This integrated software family provides all functions necessary for developing a geographic information system. ArcGIS ...
    ... are suitable when smaller geodatabases or geodatabases of a simple structure are developed, while the third approach is used in the development of complex geodatabases with a larger number of feature and attribute classes. In the software engineering field UML is the standard object-oriented modeling ...
    ... to an appropriate coordinate system. A simple symbolization and annotation of objects is present on the map, but the system provides for much more complex symbolism (fill patterns, colors, shape of symbols, line patterns,...). 6 Figure 6. Work map of the OpmGIS base for "Field G" open pit ...

  • Geoloski profil planine Avale (severna Šumadija) - uvid u litostratigrafiju i tektonske strukture

    Marinko Toljić, Bojan Glavaš-Trbić, Maja Maleš, Nikola Ranđelović (2022)
    Mezozojske formacije Šumadije dele tektonsko-stratigrafsku evoluciju južnijih delova suture jedinica Adrijskog i Evropskog afiniteta, uključujući gornjojursku obdukciju, krednu subdukciju i paleogenu kontinentalnu koliziju. Finalni rezultat dugovremene evolucije u geodinamički složenom ambijentu su komplikovani tektonski i litostratigrafski odnosi različitih mezozojskih formacija suture. Geološki profil kroz planinu Avalu omogućava uvid u skoro potpunu sukcesiju mezozojskih formacija i prostorne pozicije i kinematiku značajnih tektonskih struktura najsevernijih segmenata suture u Šumadiji. U tektonskom kontekstu, mezozojske formacije okoline Beograda najčešće su interpretirane kao deo Istočne ...
    sutura, parafliš, bazalna navlaka, transkurentni rased

  • A Lexical Approach to Acronyms and their Definitions

    Cvetana Krstev, Duško Vitas, Ranka Stanković (2015)
    In this paper we present a comprehensive approach to acronyms for Natural-Language Processing (NLP) of Serbian texts. The proposed procedure includes extraction of acronyms and their definitions that are usual Multi-Word Units (MWUs), shallow parsing of MWUs that enables MWU lemmatization and production of entries in morphological electronic dictionaries, both for MWU and acronyms, that are provided with grammatical, syntactic, semantic and domain information. This approach enables representation that reflects complex relations between acronyms and their definitions.
    ... and acronyms, that are provided with grammatical, syntactic, semantic and domain information. This approach enables representation that reflects complex relations between acronyms and their definitions. 1. Presentation of the problem Acronyms in Serbian, much as in many other lan- guages, represent ...
    ... stands for National Highway Traffic Safety Administration. Moreover, a link existing between an acronym and a multi-word name or phrase is much more complex than the one represented at the beginning of this section and given in many Serbian orthography textbooks. Namely, the acronym in use may be derived ...
    ... for BBC – British Broadcasting Corporation – Britanska ra- diodifuzna korporacija). Thus, this relation can rather be represented as a network of complex object (see Fig. 1). In dealing with acronyms additional problems arise. Namely, as stated in (Spasic et al., 2005), in biomedical texts new acronyms ...