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Упит dcterms_subject_txt:Timok Magmatic Complex

534 items

  • In-vitro ispitivanje interakcija dva strukturno slična Rh(III) kompleksa Šifovih baza sa HSA/DNK i molekulski doking

    Aleksandar Mijatović, Ljubica Bacetić, Nikola Pavlović, Dušan Ćoćić, Milan Nikolić, Aleksandar Lolić, Rada Baošić (2021)
    Kompleksi metala sa tetradentatnim Šifovim bazama ispoljavaju različitu biološku aktivnost, što omogućava ciljne sinteze novih biološki aktivnih jedinjenja. Proučavane su interakcije H[Rh(acac2en)Cl2] (1) i H[Rh(phacac2en)Cl2] (2) sa humanim serum albuminom (HSA) i sa DNK, primenom fluorescentne i UV-Vis spektroskopije (298 K, pH 7,4). Dobijene su relativno visoke vrednost dinamičke konstante vezivanja (Ksv) i to 3,88·104 M-1 za (1), 7,02·104 M-1 za (2), što ukazuje na značajno vezivanje za HSA. Izračunate konstante unutrašnjeg vezivanja (Kb) su: 2,87·105 M-1 ...

  • Pannonian Basin, Pannonian Basin System and Pannonian realm - three different concepts

    Dejan Radivojević (2019)
    Centralni Paratetis, neogen, Panonski basen, Sistem panonskog basena, Panonska oblast
    ... basin which in geomorphological sense encompass Pannonian lowland and Peripannonian rim. The term of the Pannonian Basin system should be used in complex research that would include not only the basin itself but also the surrounding areas that affect basin formation by eroding adjacent mountain areas ...

  • A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System

    Miljan Gomilanović, Miloš Tanasijević, Saša Stepanović, Filip Miletić (2023)
    This paper presents a model for determining fuzzy evaluations of partial indicators of the availability of continuous systems at coal open pits using a neuro-fuzzy inference system. The system itself is a combination of fuzzy logic and artificial neural networks. The system availability is divided into partial indicators. By combining the fuzzy logic and artificial neural networks, a model is obtained that has the ability to learn and uses expert judgment for that learning. This paper deals with the ...
    системи, континуални системи експлоатације (роторни багер-транспортер-дробилично постројење), рударство, расположивост, меко рачунарство, фази логика, ANN, ANFIS

  • Fuzzy Model for Risk Assessment of Machinery Failures

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    The main goal of this research was the development of an algorithm for the implementation of negative risk parameters in a synthesis model for a risk level assessment for a specific machine used in the mining industry. Fuzzy sets and fuzzy logic theory, in combination with statistical methods, were applied to analyze the time picture state of the observed machine. Fuzzy logic is presented through fuzzy proposition and a fuzzy composition module. Using these tools, the symmetric position of the ...
    fazi teorija, rizik, otkaz rudarskih mašina
    ... sets where the subjectivity of the analyst can be influential. The technical systems used in mining today are quite complex and sophisticated and, therefore, maintenance is also complex. The most commonly used system has operated for over 20 years, and accurate records on maintenance do not exist. This ...
    ... the realization of a goal) can be considered a risky event. Managing, controlling, and monitoring the risk of mining machine failure is a highly complex task. In order to be able to incorporate risk management, it is necessary to adopt extensive systematic and organizational measures that provide ...
    ... down the realization of a goal) can be considered a risky event. Managing, controlling, and monitoring the risk of mining machine failure is a highly complex task. In order to be able to incorporate risk management, it is necessary to adopt extensive systematic and organizational measures that provide insight ...

  • 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

  • Regionalno-geološke karakteristike miocenskih sedimenata na prostoru severnog Banata

    Dejan N. Radivojević (2014-12-30)
    Predmet doktorske disertacije predstavljalo je rešavanje strukturno‐stratigrafskihodnosa miocenskih sedimenata na prostoru severnog Banata. U cilju regionalnogsagledavanja, korišćeni su svi raspoloživi geofizički i geološki podaci sa širegistražnog područja, odnosno iz celog Panonskog basena i susednog orogena. Osimklasičnih metoda primenjene su i savremene metode seizmostratigrafije,tektonostratigrafije i riftne sekvencione stratigrafije. Primenjene metode omogućilesu izradu modela progradacije ivice šelfa za ceo Panonski basen, modela uzajamnihveza između basena i geodinamičkog modela jugoistočnog oboda basena.Jezero Panon je većim delom zapunjeno prilivom sedimenata paleo‐Dunavom saseverozapada, odnosno ...
    Centralni Paratetis, Panonski basen, miocen, jezero Panon,seizmostratigrafija, sekvenciona stratigrafija, paleogeografija, geodinamika
    ... Upper Cretaceous magmatic rocks in the Apuseni Mountains, Romania, Tectonophysics, v. 180, p. 309–322, doi:10.1016/0040‐1951(90) 90316‐Z. Pǎtraşcu, S., M. Bleahu, C. Panaiotu, and C. E. Panaiotu, 1992, The paleomagnetism of the Upper Cretaceous magmatic rocks in the Banat area ...
    ... sa slike c) predstavljena je debelom plavom linijom, dok crni poligon predstavlja područje severnog Banata. CF – Černa–Žiju rased; TF – Timok rased. (b) Detaljna tektonska karta veze između Dinarida, Južnih Karpata i Panonskog basena (Schmid et al., 2008, modifikovano); crni poligon ...
    ... Panaiotu, M. Secleman, and C. E. Panaiotu, 1994, Timing of rotational motion of Apuseni Mountains (Romania): paleomagnetic data from Tertiary magmatic rocks, Tectonophysics, v. 233, p. 163–176. Pavelić, D., 2001, Tectonostratigraphic model for the North Croatian and North Bosnian sector of ...

  • Simple 2D Gravity-density inversion for modeling of the sedimentary basin basement

    Ivana Vasiljević, Snežana Ignjatović, Dragana Đurić, (2019)

  • Using technology for knowledge transfer between academia and enterprises

    Ivan Obradović, Ranka Stanković (2014)
    ... GeolISS project.6 Thesauruses are complex terminological resources, usually related to a specific domain, with as semantic structure formed by semantic relations between terms, and thus in some of their features resembling wordnets. RudOnto is another complex terminological resource, also developed ...
    ... dictionaries in electronic form are one of the simplest multilingual lexical resources. However, for their full functionality in languages with complex morphology, such as Serbian, they need to be coupled with morphological dictionaries. Morphological dictionaries of Serbian simple words and compounds ...

  • Production of morphological dictionaries of multi-word units using a multipurpose tool

    Ranka Stanković, Ivan Obradović, Cvetana Krstev, Duško Vitas (2011)
    The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...
    electronic dictionary, Serbian, morphology, inflection, multi-word units, noun phrases, query expansion
    ... complexity in both releases (Windows i.e. standalone and web): the simplest includes only morphological expansion of a query, a more complex one adds synonyms, and the most complex level enables the user to expand his/her query in several ways. For instance, if the initial query is ‘marka’ and a user chooses ...
    ... multi-word units. Development of morphological dictionaries of MWUs is a tedious task, especially in the case of Serbian and other languages featuring complex morphological structures. After realizing that the development of such a dictionary manually is an extremely slow process, we endeavored towards a ...
    ... do its simple word constituents inflect, and what is the inflectional behavior of a MWU as a whole. One can imagine that for some languages this complex procedure can be skipped and a list of MWU forms can be produced from scratch. Serbian is, however, like all Slavic languages a highly inflectional ...

  • Proširivanje upita zasnovano na leksičkim resursima

    Ranka Stanković, Ivan Obradović, Cvetana Krstev (2009)
    U radu je opisano kako se leksički resursi za srpski jezik i softverski alati, razvijeni u okviru Grupe za jezičke tehnologije Univerziteta u Beogradu, mogu koristiti za unapređenje postavljanja upita. Rezultati pretrage mogu biti značajno unapređeni korišćenjem različitih leksičkih resursa, kakvi su morfološki rečnici i semantičke mreže. Izloženi pristup može se iskoristiti i u Sistemu naučnih, tehnoloških i poslovnih informacija, jer je efikasno pretraživanje ovog dragocenog resursa, imajući u vidu njegovu heterogenost i obim, kao i preovladavajući tekstualni sadržaj, ...
    ... business information. Efficient exploration of such a valuable source, in view of the diversity and amount of archived data, including textual, is a complex task. The tools we describe are WS4LR, a software tool that has already been developed and used for solving different tasks within the Group, and ...

  • Development of A Business Intelligence Tool For Accident Analysis in Mines

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Uroš Pantelić (2015)
    ... 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 ...
    ... technology, especially ontologies. The tool developed for accident analysis in mines offers to the users an insight into large quantities of complex data. This insight can further be transformed into useful new knowledge which the management in a mine plant needs for decision making. Managements ...

  • Conversion of land areas after coal mine closure and reclamation

    Radmila Gaćina, Bojan Dimitrijević, Sanja Bajić (2023)
    Otkopavanje uglja površinski i podzemno praćeno je degradacijom zemljišta, promenom formiranja predela i izmenom flore i faune. Od velikog značaja je razvoj novih naučno utemeljenih pristupa obnovljanje antropogeno poremećenih predela zasnovanih na formiranju rekultivacionih i rudarskih tehnologija. Apsolutno je neophodno obezbediti sveobuhvatno kvalitetno očuvanje zemljišnih i vodnih resursa i odrediti rekultivisano zemljište za novu namenu. U ovom članku je dat pregled najpopularnijih metoda rekultivacije zemljišta i mogućnosti rekultivacije zemljišta nakon završetka rekultivacije i zatvaranja rudnika uglja.
    rekultivacija, melioracija, revitalizacija, otkopavanje uglja, održivi razvoj
    ... AHP, TOPSIS. Decision support models consider several criteria to determine the optimum solution, also used to support decision makers in solving complex problems through simple procedures. It is important to point out that the defined model can be used in all planning and exploitation phases of an ...
    ... removed from the decision solution problem. Logical Use simple diagrams to Framework P d Clarify the cause and Greatly affected by analyze complex · : : · Approach : effect in the project. important assumptions. (LPA) relations. Figure 2 shows what conditions and problems should be considered ...

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

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

  • 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
    ... crust. J. Geodynamics, 20/3, 289–304, Great Britain. MILOVANOVIC D., KARAMATA S., BANJESEVIC M., 2005: Petrology of alkali ba- salts of Zlot, Timok Magmatic Complex. Tectonophysics, 410, 501, 5093. MILOVANOVIĆ D., MARCHIG V., DIMITRIJEVIĆ M., 1998: Petrology and chrono- logy of the Vucje gneiss, Ser ...
    ... 12.006. IGNJATOVIĆ S., VASILJEVIĆ I., BURAZER M., BANJEŠEVIĆ M., STRMBANOVIĆ I., CVETKOVIĆ V., 2014: 2D geological-geophysical model of the Timok Complex (Serbia, SE Europe): A new perspective from aeromagnetic and gravity data. Swiss Journal of Geosciences (Birkhaeuser Verlag AG, Basel. Switzerland) ...
    ... ФАКУЛТЕТА 423 IGNJATOVIĆ S., VASILJEVIĆ I., BURAZER M., BANJEŠEVIĆ M., STRMBANOVIĆ I., CVETKOVIĆ V., 2014: 2D geological-geophysical model of the Timok Complex (Serbia, SE Europe): A new perspective from aeromagnetic and gravity data. Swiss Journal of Geosciences, Vol. 17, No. 1, Springer Basel, 101-112 ...

  • 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
    ... resource is in its multiple applications. Although Serbian morphological dictionaries (SMD) were initially developed for Unitex1, which enables various complex queries with regular expressions or FSA, their main importance is their reusability. They were used for the basic tasks of word processing, automatic ...
    ... obstacle for it to be applied in purpose of maintaining DELA dictionaries of other languages. The Section 3.1 will present more detailed reasons for complex transition to a lexicographic database and to an online application. In Sections 3.2 and 3.3 we will give a description of Leximirka’s lexicographic ...
    ... chosen DELAS file. Opportunities for working with dictio- naries of MWUs are also available. The most important one is the automatic generation of the complex DELAC lemmas from a simple list of their basic forms. After years of working on dictionary expansion, the number of lexical records and categories ...

  • Arsenic in Tap Water of Serbia´s South Pannonian Basin and Arsenic Risk Assessment

    Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić (2012)
    kvalitet podzemnih voda, arsen, analiza rizika, Panonski Basen
    ... methylated forms [13]. It is especially important to determine the source and mobility of arsenic in groundwa- ter. Its mobility depends on the highly-complex geochemi- cal processes that take place in the aquifer. An anoxic state of groundwater increases arsenic mobility [14]. Based on a review of different ...
    ... 1785 some cases. Below this depth, the physicochemical proper- ties of the groundwater are extremely unfavorable and would necessitate costly and complex technological treat- ments. Iron, ammonium ion, organic substances, and arsenic are the major parameters that do not meet require- ments, MPC [23, ...
    ... of the groundwaters used for drinking water sup- ply in the South Pannonian Basin exhibited an unsatisfac- tory water quality, which is a result of complex geological and hydrogeochemical characteristics. In view of the size of the test area, it was divided into three districts: Banat, Bačka, and Srem ...

  • The analysis of the geothermal energy capacity for power generation in Serbia

    Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk (2013)
    Renewable Energy, Sustainability and the Environment
    ... concentration is very high before the main stage of a crystallization. It is highest in granites and notably reduced from acid to basic and ultrabasic magmatic rocks. Silicon concentration is also high in granite pegmatites. Plagioclases are the commonest group of silicate minerals in igneous rocks with ...

  • 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
    ... the national mining law, BBergG (1980) - bringing together all mining operations and the general environmental laws to speed up and simplify the complex planning process. The law in Serbia defines that the Exploitation Holder is obliged to recultivate the land in accordance with the technical project ...
    ... framework in the field of recultivation of degraded areas ... 35 6 CONCLUSION The changes in the environment effected by the coal mining are so complex that often no natural recovery of disturbed areas can occur. Land recultivation is a method of countering the negative after-effects of extracting ...

  • Application of Expansive Mortars for the Formation of Artificial Screens During Blasting in Urban Areas

    Milanka Negovanović, Lazar Kričak, Stefan Milanović, Nikola Simić, Jelena Majstorović (2024)
    During construction of buildings in urban areas, sometimes there is a need to blast solid rock mass in the immediate vicinity of the surrounding buildings. In that case, the aim is not only to increase the efficiency of blasting, but also to reduce harmful effects of ground vibration induced by blasting. At the same time, it is very important to protect the buildings located in the safe zone from the blast site as well as remaining rock mass around ...
    expansive mortar, artificial screens, pressure, rock breaking, building foundation

  • Project REASONING: Characterization and technological procedures for recycling and reusing of the rudnik mine flotation tailings

    Vesna Cvetkov, Vladimir Simić, Stefan Petrović, Filip Arnaut, Milena Kostović, Dragan Radulović, Jovica Stojanović, Vladimir Jovanović, Dejan Todorović, Nina Nikolić, Jelena Senćanski, Grozdanka Bogdanović, Dragana Marilović (2024)