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Упит dcterms_subject_txt:top-down method

508 items

  • Post Early Miocenevertical-axis clockwise rotation in the West Vardar Zone of Serbia

    Vesna Lesić, Emo Marton, Vesna Cvetkov, Dragana Jovanović (2018)
    ... alternating field demagnetization of pilot specimens. According to the behavior of the pilot specimens during demagnetization it was chosen which method was used to demagnetize the rest of the specimens from each locality/site. Magnetic mineralogy experiments were carried out on selected specimens ...

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

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

  • Rule-based Automatic Multi-word Term Extraction and Lemmatization

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Biljana Lazić, Aleksandra Trtovac (2016)
    In this paper we present a rule-based method for multi-word term extraction that relies on extensive lexical resources in the form of electronic dictionaries and finite-state transducers for modelling various syntactic structures of multi-word terms. The same technology is used for lemmatization of extracted multi-word terms, which is unavoidable for highly inflected languages in order to pass extracted data to evaluators and subsequently to terminological e-dictionaries and databases. The approach is illustrated on a corpus of Serbian texts from ...
    term extraction, terminology, multi-word units, lemmatization, finite-state transducers
    ... NXN type MWUs (a noun followed by a noun that agrees with it in number and case, where the separator can be a hyphen) is depicted in Figure 1 (top). It should be noted that this graph, as all other extraction graphs, works locally, that is, it does not look at the broader context. Two subgraphs ...
    ... bg.ac.rs, ivan.obradovic@rgf.bg.ac.rs, biljana.lazic@rgf.bg.ac.rs, aleksandra@unilib.bg.ac.rs Abstract In this paper we present a rule-based method for multi-word term extraction that relies on extensive lexical resources in the form of electronic dictionaries and finite-state transducers for ...
    ... Linguistics, 19(1), pp.61--74. Frantzi, K., Ananiadou, S., and Mima, H. (2000). Automatic recognition of multi-word terms:.the C-value/NC-value method. International Journal on Digital Libraries, 3(2), pp. 115-130. 513 Gelbukh, A., Sidorov, G., Lavin-Villa, E., and Chanona-Hernandez ...

  • Hydrogeochemical distribution of Ca and Mg in groundwater in Serbia

    Petar Papić, Jovana Milosavljević, Marina Ćuk, Rastko Petrović (2014)

  • Environmental Energy Security Indicators as Tools for Environmental Protection

    Aleksandar Madžarević, Dejan Ivezić, Marija Živković , Miloš Tansijević (2019)
    Еколошка прихватљивост је постала незаменљив синтезни показатељ сваке валидне енергетске анализе у последње две-три деценије. Енергетска безбедност је у директној хармонији с еколошком прихватљивошћу кроз многе прописане политичке циљеве, економске користи, правне тековине итд. Индикатори еколошке сигурности представљају један од основних елемената за одређивање енергетске безбедности и снажне алате за усмеравање енергетског сектора ка одрживом развоју. У овом раду, анализа је била концентрисана на показатеље енергетске безбедности у области животне средине који се односе на сектор природног гаса у ...
    енергетска безбедност, еколошки енергетски индикатори, заштита животне средине, еколошка прихватљивост
    ... increasing, and supply sources become limited and unevenly distributed, the energy security is becoming an essential indicator. Energy security is a top priority issue for rapidly developing countries and, in energy terms, the demand for available energy is growing intensively [7]. In general, energy ...
    ... called ranking, is done. It can be performed by several different methods. Ranking based on the application of the AHP (Analytic Hierarchy Process) method was used for the purposes of developing this synthesis model. In this way, ranking data is used as input to the fuzzy set, which is further analyzed ...
    ... Variables Proposition of fuzzy set Integral analisis Fuzzy composition Questioners; Monitoring; Statistical work Best-fit method RANKING Input data AHP Figure 1. Schematic diagram of a model for environmental energy security assessment The output of the fuzzy set is ...

  • Simulation of Hydrogeological Environmental Discharge in Case of Interruption Constant Observations

    Marina Čokorilo Ilić, Dragoljub Bajić, Miroslav Popović (2024)
    Monitoring Network, data, hydrogeological environment, tunnel, simulation

  • Classification of Terms on a Positive-Negative Feelings Polarity Scale Based on Emoticons

    Mihailo Škorić (2017)
    The goal of this paper is to draw attention to the possibility of using emoticon-riddled text on the web in language-neutral sentiment analysis. It introduces several innovations in the existing framework of research and tests their effectiveness. It also presents a software tool especially made for that purpose, explains how it builds a database with sentimental value of terms and offers the user manual. Finally, it presents a software tool that tests the new database and gives some examples ...
    data mining, information extraction, emotions, text on the web
    ... determiners are located. As the determiners are language-independent, the system would be language-independent as well. If it turns out to be valid, this method could allow machine learning the usage of huge corpus of texts that are pre-labeled with determiners. 1.1 Review of their former similar studies ...
    ... the first two aforementioned prerequisites were fulfilled. 2.2 Assigning values to the determiners The values of determiners were obtained by a method of survey which was conducted on the internet platform Google forms, which people were able to access through hyperlinks published on social networks ...
    ... several independent evaluators and based on their responses it can be concluded that the values are non-random and representative, hich implies that this method of terms classification is pos- sible for any natural language using determiners, but it is still necessary to carry out a systematic evaluation. ...

  • Multivarijabilni modeli upravljanja u rudarstvu

    Marjan M. Hudej (2014-02-03)
    osetljivost i rizik. Više pobuda generiše ovakvu atribuciju. Prva je, multivarijabilnostambijentalnih uslova i funkcionalna i strukturna složenost rudarskih sistema (čovek -priroda (radna sredina) - mašina – okruženje); Druga se odnosi na ne postojanje opštenaučne saglasnosti oko ocene pogodnosti modela za podršku odlučivanju i upravljanje.Treća, ako bi saglasnost i postojala, nije sigurno da bi raspoloživi modeli, metode i taktike,dale ekvivalentne rezultate za iste rudničke uslove. Četvrta, sistemske nauke još uveknemaju opšte prihvaćen i u praksi primenljiv algoritam izbora najboljeg rešenja ...
    rudarstvo, odlučivanje, upravljanje, model,multivarijabilno, multiatributno, multikriterijumsko
    ... decision model based on PROMETHEE method (Report), Journal of Academy of Business and Economics, International Academy of Business and Economics October, 2009. 2. Abedi, M., Torabi, S.A., Norouzi, G., Hamzeh, M., Elyasi, G., PROMETHEE II: a knowledge- driven method for copper exploration, Computers ...
    ... 1990, 244-256. 14. Beynon M., PROMETHEE Method of Ranking Alternatives, in: The Sage Dictionary of Quantitative Management Research, Luiz MOutinho & Graeme Hutcheson (eds.), SAGE Publications Ltd., 2011, 344. 15. Bitarafan M.R., Ataei M., Mining method selection by multiple criteria decision making ...
    ... projects: The PROMETHEE method, European Journal of Operational Research, Vol. 24, 1985, 228-238. 21. Brans J. P., Mareschal B., Promethee Methods, Multiple Criteria Decision Analysis: State of the Art Surveys, , Springer, 2005, 163-186. 22. Cancer V., The Multicriteria method for environmentally oriented ...

  • Multivarijabilni modeli upravljanja u rudarstvu

    Marjan M. Hudej (2014-02-03)
    osetljivost i rizik. Više pobuda generiše ovakvu atribuciju. Prva je, multivarijabilnostambijentalnih uslova i funkcionalna i strukturna složenost rudarskih sistema (čovek -priroda (radna sredina) - mašina – okruženje); Druga se odnosi na ne postojanje opštenaučne saglasnosti oko ocene pogodnosti modela za podršku odlučivanju i upravljanje.Treća, ako bi saglasnost i postojala, nije sigurno da bi raspoloživi modeli, metode i taktike,dale ekvivalentne rezultate za iste rudničke uslove. Četvrta, sistemske nauke još uveknemaju opšte prihvaćen i u praksi primenljiv algoritam izbora najboljeg rešenja ...
    rudarstvo, odlučivanje, upravljanje, model,multivarijabilno, multiatributno, multikriterijumsko
    ... decision model based on PROMETHEE method (Report), Journal of Academy of Business and Economics, International Academy of Business and Economics October, 2009. 2. Abedi, M., Torabi, S.A., Norouzi, G., Hamzeh, M., Elyasi, G., PROMETHEE II: a knowledge- driven method for copper exploration, Computers ...
    ... 1990, 244-256. 14. Beynon M., PROMETHEE Method of Ranking Alternatives, in: The Sage Dictionary of Quantitative Management Research, Luiz MOutinho & Graeme Hutcheson (eds.), SAGE Publications Ltd., 2011, 344. 15. Bitarafan M.R., Ataei M., Mining method selection by multiple criteria decision making ...
    ... projects: The PROMETHEE method, European Journal of Operational Research, Vol. 24, 1985, 228-238. 21. Brans J. P., Mareschal B., Promethee Methods, Multiple Criteria Decision Analysis: State of the Art Surveys, , Springer, 2005, 163-186. 22. Cancer V., The Multicriteria method for environmentally oriented ...

  • Structural dissymmetrization of optically anisotropic Grs64±1Adr36±1Sps2 grandite from Meka Presedla (Kopaonik Mt., Serbia)

    Pavle Tančić, Aleksandar Kremenović, Predrag Vulić (2019)
    In this paper, grandite core with Grs64±1Adr36±1Sps2composition was crystallographically studied. This core represents zone A of the macroscopically visiblefive A–E zones of the optically anisotropic Grs58–64 Adr36–42Sps2 grandite. The applied procedure includes the detailed analysis of the powder diffraction patterns, and the Rietveld refinements of the crystal structures in a series of 18 space groups and two mixtures, which were followed by the comparative analysis of the R-values, site occupancy factors, and the bond lengths and angles. Synthesis of all ...
    grandite, XRPD, crystal structure, structural dissymmetrization

  • Eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje

    Marko Lazić, Filip Miletić, Milena Lekić, Veljko Rupar, Željko Petrović, Lazar Žujović (2021)
    U radu su analizirani eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje. Period analize je prvih šest meseci tekuće godine. Analiza je vršena sa aspekta ostvarene proizvodnje, kvaliteta uglja, efektivnog vremena rada, kapacitetnog i vremenskog iskoršćenja i zastoja sistema. Za poređenje podataka različitih parametara koji po svojoj prirodi nisu međusobno uporedivi, u radu su korišćene metode višekriterijumskog odlučivanja.
    proizvodnja uglja, zastoji, metode višekriterijumskog odlučivanja
    ... mines equipment through MADM methods: Application of modified VIKOR method. Expert Systems with Applications, 38(3), 2550-2556;Systems with Applications, 121, 393-417; [9] Tsaur R–C.,,Decision risk analysis for an interval TOPSIS method” Applied Mathematics and Computation 218(8), pp. 4295–4304, 2011. ...

  • Analiza uporednog praćenja temperature površine ohlađenih materijala pri njihovom zagrevanju do ambijentalne temperature

    Stevan Đenadić, Ljubiša Tomić, Vesna Damnjanović, Katarina Nestorović (2021)
    U datom eksperimentalnom radu su termografskim metodama ispitivane termofizičke karakteristike različitih materijala. Za ispitivanja su izabrani mesingani niovčić, ugalj i pelet, jer imaju različita termoizolaciona svojstava i različito stanje površine. Uzorci su najpre hlađeni, a zatim je njihovo zagrevanje na sobnoj temperaturi praćeno termalnom kamerom. U drugom delu eksperimenta, korišćena je impulsna termografija, a zagrevanje površine uzoraka vršeno je svetlosnom pobudom.
    termografija, impulsna termografija, nedestruktivno testiranje materijala, mesing, ugalj, pelet

  • Application of stochastic models for mine planning and coal quality control

    Dejan Stevanović, Božo Kolonja, Ranka Stanković, Dinko Knežević, Mirjana Banković (2014)
    ... blending efficiency are the pile size or its mass and the number of layers used to build pile. The aim in the homogenization process is to narrow down the standard deviation of the normal distribution. A measure of the quality of the homogenizing process is defined by the homogenizing efficiency ...
    ... g blending efficiency are the pile size or its mass and the number of layers used to build pile. The aim in the homogenization process is to narrow down the standard deviation of the normal distribution. A measure of the quality of the homogenizing process is defined by the homogenizing efficiency (HE) ...
    ... integration for calcula- tion of intersection area of arbitrary polygons when the polygons are too complex. We describe the Monte Carlo integration method we used. Let f be a function, and IV(f) the definite integral of that function: I f X X X f X X X fV a b a b n a b n n n ( ) ( , , , ) ( ...

  • A hundred years of Milutin Milanković's climate change theory - geological implications

    Dejan Radivojević (2020)
    Миланковићева теорија циклуса објављена пре сто година је најважнија теорија у наукама које проучавају климу и имала је велики утицај на дисциплине које се баве Земљом. Ипак, његов рад је чекао више од педесет година да би добио потврду. Може се рећи да Миланковићев рад највећи утицај на геологију има у изради астрономске временске скале, подршци хипотези континенталног дрифта и палеоклиматологији. Добри резултати примене астрономске временске скале на неогене седименте иницирали су примену ове методе у мезозојским и у последње ...
    циклостратиграфија, астономска временска скала, геолошка временска скала, климатске промене, континентални дрифт
    ... on greenhouse gas emission. Besides being a brilliant scientist Milanković was a patriot strongly attached to Serbia, where he de- cided to settle down despite much better financial conditions he had in Austria. His determination and love for science was so strong that he managed to achieve important ...
    ... implications. Positive results of the implementation of the astronomic time scale to the Neo- gene stratigraphy initiated the application of this method within the Mesozoic, and lately also to the Paleozoic sediments. Milanković’s manuscript of astro- nomical forcing of climate changes led to fruitful ...
    ... since the potential pitfalls and misinterpretation could be caused by hiatuses, bioturbation, reworked sediments, and erosion. The astronomical tuning method enhances tradi- tional geological dating methods and over the last decade has been successfully applied to a continuous high-resolution geological ...

  • Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications

    Vesna Lesić, Emo Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov (2018)
    The Vardar-Tethyan mega-suture between the Eurasian and Adria (Gondwana) margins comprises remnants of oceanic lithosphere of Neotethys and distal parts of the adjacent continental margins including unconformable Late Cretaceous sedimentary cover and Cenozoic igneous rocks of post-obduction age. This study provides kinematic constraints for displacements and rotations affecting the Serbian part of the West Vardar and Jadar-Kopaonik units after the closure of the Neotethyan (= Sava) Ocean. The targets of the paleomagnetic research were Late Cretaceous sediments representing an ...
    Paleomagnetism, Clockwise rotation, Dinarides, West Vardar zone
    ... Fig. 4, Fig. 4 Data from the Cretaceous sediments of the wider Rudnik Mts. area regarding the identification of magnetic minerals (method by Lowrie 1990). From top to bottom: IRM acquisition, thermal demagnetization of the three-component IRM and its normalized version, susceptibility during heating ...
    ... thermal (MMTD80, Magnetic Measurements, Aughton, and TSD- 1, Schonstedt Instrument Company, Reston) method. The remaining samples from the respective groups were demagnetized with the more efficient method, and in as Clockwise vertical-axis rotation in the West Vardar zone of Serbia: tectonic implications ...
    ... whitish. Moreover some beds exhibited concentric features varying both in size and colours on the surface, with the continuation of colour variation down- ward in the bed. We drilled the concentric features of varying colours and, as we shall see later, the analysis of their natural remanent magnetization ...

  • Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia

    Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski (2024)
    General Earth and Planetary Sciences
    ... analysis, the model that employed only the top five informative features is kin statistically for slightly imbalanced training datasets, such as dataset B. However, upon visual inspection, the models trained on dataset B and the RF model utilizing only the top five informative features and the balanced ...
    ... RE modeling yielded feature importance outputs, which were determined by the MDNA and TINP, as depicted in Fig. 8. In the RF_C_100 model, the top five features ranked by MDNA and TINP exhibit similarity. These features include the Bouguer anomaly map, distance to fault map, digital elevation ...
    ... intensity of the Earth's magnetic field reduced to the pole, and BR3 map. Likewise, the remain- ing 14 models exhibited identical outcomes, with the top five most informative parameters consistently ranking in the same order. Additionally, ali models shared a commonality in the two parameters that ...

  • WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)
    ... Physical, Streets, Hybrid or Satellite, depending on user choice. Over the base map two layers are displayed: polygons singled with remote sensing method and polygons resulting from the analysis of exploitation authorizations, requests for recultivation and field visits. Figure 2 Main page of ...
    ... Google analytics. Statistics of mining facilities and results of remote sensing by property type, by district, municipality, by mineral resource or method of registration and the like are also available. A system for reporting problems in system operation and review of frequently asked questions ...

  • Flyrock induced by blasting in surface mining

    Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac (2022)
    Miniranje predstavlja i dalje najefikasniji i najjeftiniji način eksploatacije velikih količina čvrstih mineralnih sirovina na površinskim kopovima. Energija eksplozije se koristi za fragmentaciju čvrste stenske mase do zahtevane granulacije. Pored pozitivnih efekata miniranja, postoje i određeni neželjeni efekti svakog procesa miniranja koji se mogu javiti, a to su: potresi tla, razletanje komada stene, vazdušni udari, otrovni i zagušljivi gasovi i prašina. Razletanje komada stene je nekontrolisano izbacivanje fragmenata odminirane stenske mase i predstavlja jedan od glavnih izvora materijalne štete ...
    razletanje, bušenje, miniranje, površinska eksploatacija, bezbednost, nesreća

  • Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders

    Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić (2023)
    ... for 2 h. The diffraction pattern was recorded at room temperature and atmospheric pressure without of any re-heating of the sample. The Rietveld method for fitting refinement procedure was performed which showed the incorporation of Ag** ions in the CuO crystal lattice, where they substitute Cuž* ...

  • 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)