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Упит dcterms_subject_txt:early warning system

700 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)

  • 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

  • Distribution of major and trace elements in the Kovin lignite (Serbia)

    Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović (2019)
    geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive Xray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). ...
    General Earth and Planetary Sciences, General Environmental Science
    ... SYNAK, R., UJSZÁSZI, K. & PÓC­ SIK, M. (2013): Progradation of the paleo­Danube shelf margin across the Pan­ nonian Basin during the Late Miocene and Early Pliocene.– Global Planetary Change, 103, 168–173. doi: 10.1016/j.gloplacha.2012.06.007 MEIJ, R. (1995): The distribution of trace elements during ...
    ... of Devonian low­grade schist overlain by Neogene sediments. The Kovin deposit together with the Kostolac basin was formed in the Pannonian Basin System in shallow lacustrine, delta plain and fluvial environments. During the late Miocene it became in­ creasingly widespread as Lake Pannon (e.g. MAGYAR ...
    ... equipped with an energy­dispersive X­ray spectrometer (SEM­ EDS; X­Max Large Area Analytical Silicon Drift connected with INCAEnergy 350 Microanalysis System). After the maceral ana­ lysis, polished blocks were coated with a thin gold film in order to obtain a higher quality secondary electron image for ...

  • Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)

    Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Richard Spikings, Andreas Wetzel (2016)
    General Earth and Planetary Sciences
    ... the SMM (Antić et al. 2015b). Struma unit and Crnook-Osogovo-Lisets complex During the late Early Cretaceous, the Vlasina Unit was thrust to the east onto the Struma and other Getic units along a system of cast- to north-east-vergent thrusts (Petković 1930; Mihailescu et al. 1967; Petrović 1969; ...
    ... of the Mesozoic-Early Tertiary Paikon Massif, Vardar suture zone, N Greece. Sediment Geol 160:179—212. doi:10.1016/S0037-0738(02)00376–7 Burchfiel BC, Nakov R, Dumurdžanov N et al (2008) Evolution and dynamics of the Cenozoic tectonics of the South Balkan exten- sional system. Geosphere 4:919-938 ...
    ... Balkan (Stara Planina) Moun- tains. Abstracts. Brescia, pp 9264 Matenco L, Schmid S (1999) Exhumation of the Danubian nappes system (South Carpathians) during the Early Tertiary: infer- ences from kinematic and paleostress analysis at the Getic/ Danubian nappes contact. Tectonophysics 314:401—422 ...

  • Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals

    Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić (2020)
    As the number of poorly soluble drugs is increasing, nanocrystals have become very interesting due to wide range of application possibilities. Curcumin was used as a model active ingredient in this work. Even though it has many proven positive effects, due to its physicochemical issues, its possibilities have not been fully exploited. The goal of this work was to select optimal conditions for a top-down method for curcumin nanosuspension production, and to perform their comprehensive characterization applying complementary methodologies: ...
    nanocrystal, curcumin, top-down method, wetball milling

  • Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy

    Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag (2014)
    anizik, ladin, karbonati, litostratigrafija, biostratigrafija, konodonti, radiolarije, dijageneza
    ... grainstones together. The 176 Nagy Z.R. & al. early lithification and cementation of the platform com- ponents was most likely significant since the lack of primary platform framework formed by organisms. De- spite the large amount of early cement, the significant porosity left in the limestone ...
    ... which include multiple thrust faults (Litćr and Veszprćm) generated by regional compression during the Eoalpine Orogeny (Late Cenomanian to Early Senonian). During the Neoalpine Orogeny (Miocene), the area was subsided along dip faults due to local extension and the 'Triassic rocks were ...
    ... (rifting) was associated with volcanic activity during the Ilyrian (VAaszoly Formation, Reztzi ammonoid zone), which was followed by late IHHyrian to early Ladinian (Sece- densis to Cuyiontt ammonoid zone) nodular limestones interbedded with tuffs, siliceous limestones, and marls (Buchenstein Formation ...

  • Одређивање оптималне производње дубинске пумпе на клипним шипкама

    Небојша Савић (2024)
    Дужи временски период током историје производње нафте, дубинске пумпе на клипним шипкама су први и у многим случајевима једини избор када су у питању механичке методе експлоатације. Правилан одабир сваког појединачног елемента система омогућава оптимизацију која са собом повлачи бенефите у виду повећавања ефикасности и смањења трошкова. Тренутно примењени систем дубинских пумпи на клипним шипкама на лежишту „Н“ обезбеђује стабилну производњу и реализацију годишњих планова производње без већих проблема. У овом раду је приказан начин оптимизације производње дубинским пумпама ...
    дубинска пумпа, оптимизација, производња, потисни вентил
    ... +9 Mn.polrodicad (N) | 38301 Tubma pres (kPa)} | %0 {m over pump)- 40 Strokes per minute 65 MPRUPPRL 0%5 Casna pres (kPa} | 10 Stuf.box F (N) 445 'System eff (Motor->Pump} 1% Unt Sbruct. ioading: 90% Pol rod.diam, 125"(318mm) | Pemissibe Load Powet(KVO}; | 96 PRHP / PUHP: 32 Fiuid load on pump (N) ...
    ... pol,rođioad (N) | 3295 Tubina pres (kPa) | 600 {m over pump) 303 Srokes per minute- 64 MPRUPPRL: 0477 Casnq pres. (kPa) | 10 Stuf.box fr. (N)' 445 System eff (Motor->Pump) 16% BOIa 126-(318mm;) | Pemmissibe Load Power(kWX | 168 | Oc ag 80% las Fiuid load on pump (N}- dMOp FOMA JPLHE" 032 Fluid ...
    ... (m'/O}; 19 Mn pol tođioađ (N) - 41451 Tubuna pre& (kPa) | %0 (movefpumo) | 400 Srokes por menule 423 MPRUPPRL 068 Cagsnapres (kPa) | 10 Subo#(N) | 46 System eff (Motor->Pumo) 20% ~ UWSWuGioađag: % % Perrvystje Load Powet W 63 Pol rod dam 125318 mm) Fiddioedon ON 12687 | „PRMP/PUHP 30 Fiud Properes ...

  • Using Lexical Resources for Irony and Sarcasm Classification

    Miljana Mladenović, Cvetana Krstev, Jelena Mitrović, Ranka Stanković (2017)
    The paper presents a language dependent model for classification of statements into ironic and non-ironic. The model uses various language resources: morphological dictionaries, sentiment lexicon, lexicon of markers and a WordNet based ontology. This approach uses various features: antonymous pairs obtained using the reasoning rules over the Serbian WordNet ontology (R), antonymous pairs in which one member has positive sentiment polarity (PPR), polarity of positive sentiment words (PSP), ordered sequence of sentiment tags (OSA), Part-of-Speech tags of words (POS) ...
    ... forms. In that regard, we needed a POS tagger to ana- lyze each tweet only at the level of this set of word forms. For that purpose, we used a hybrid system for Serbian that combines three NLP tasks: PoS tagging, compound and named-entity recognition [10] (step 5 in Fig. 1) that was trained on various annotated ...
    ... rhetoric, one definition of sarcasm is “Use of mockery, verbal taunts, or bitter irony”. For this reason, we explored whether the irony classification system can be used for sarcasm classification. The other reason for this experiment are promising results presented in [7],[34],[4],[12],[28], where irony ...
    ... ontological rules to include procedures of generalization and specifications of con- cepts that are already included by the rules laid down by this system. Also, we should use more balanced datasets to achieve more reliable results. 6 CONCLUSIONS In this paper we have suggested and assessed language ...

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

    Dejan Stevanović, Božo Kolonja, Ranka Stanković, Dinko Knežević, Mirjana Banković (2014)
    ... mining planning and scheduling. For a given mining schedule and multiple simulated quality models, compose the average content values for each pile system considering the number of blocks forming each chosen stockpile and their respective qualities. Each generated pile is based on a scheduled sequence ...
    ... mining planning and scheduling. Fora given mining schedule and multiple simulated quality models, compose the average content values for each pile system considering the number of blocks forming each chosen stockpile and their respective qualities. Each generated pile is based on a scheduled sequence ...
    ... with the increase of the number of stockyard pile layers, it is necessary to understand all variability sources influencing the pile homogenization system of the case study, namely: – variability of the sulfur grades from each coal seam and bench11, bench12, … benchij. – variability of the sulfur grades ...

  • Novi pristup proučavanju tekstura minerala značajnih za istraživanje rudnih ležišta

    Aleksandar Pačevski (2022)
    ... l significance) Miloš Velojić, Geologija hidrotermalnog Cu-Au sistema Čukaru Peki Miloš Velojić, Geology of the Čukaru Peki hydrothermal Cu-Au system Violeta Gajić, Sedimentologija gornje krede jednog dela Unutrašnjih Dinarida (zapadna Srbija) Violeta Gajić, Sedimentology of the Upper Cretaceous ...

  • 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
    ... 2011, 145-168. 7. Bascetin A., A decision support system using analytical hierarchy process (AHP) for the optimal environmental reclamation of an open-pit mine, Environ Geol, 2007, 52: 663–672. 8. Batanović V., Guberinić S., Petrović R., System theoretic approach to sustainable development problems ...
    ... 2_fall_wang_xinyi.pdf?sequence=1 37. https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/7612/1132618.p df 38. http://www.onemine.org/search/summary.cfm/Multicriteria-Choice-Of-Ore-Transport-System- For-An-Underground-Mine-Application-Of- PROMETHEEMethods?d=33035A241B4B0A8F ...
    ... existed, it is not sure that available models, methods and tactics would give equivalent results for different mining conditions. The fourth is that system sciences still do not have generally accepted and practically applicable algorithm for the selection of the best solution in case of instability of ...

  • 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
    ... 2011, 145-168. 7. Bascetin A., A decision support system using analytical hierarchy process (AHP) for the optimal environmental reclamation of an open-pit mine, Environ Geol, 2007, 52: 663–672. 8. Batanović V., Guberinić S., Petrović R., System theoretic approach to sustainable development problems ...
    ... 2_fall_wang_xinyi.pdf?sequence=1 37. https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/7612/1132618.p df 38. http://www.onemine.org/search/summary.cfm/Multicriteria-Choice-Of-Ore-Transport-System- For-An-Underground-Mine-Application-Of- PROMETHEEMethods?d=33035A241B4B0A8F ...
    ... existed, it is not sure that available models, methods and tactics would give equivalent results for different mining conditions. The fourth is that system sciences still do not have generally accepted and practically applicable algorithm for the selection of the best solution in case of instability of ...

  • Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?

    Стефан Петровић, Наталија Батоћанин (2020)
    У раду су приказани резултати испитивања серпентинисаних харцбургита Брђана (43°58'45.1" СГШ, 20°25'12.6" ИГД) и талкизираних харцбургита откривених у интервалу 429-559.8 m у истражној бушотини 330А/18 (44°07'33.2" СГШ, 20°30'28.5" ИГД) на Руднику. Узорци оба локалитета показују карактеристике резидуалних харцбургита из омотача, односно тектонита; лепидобластичне, бластозрнасте, или порфирокластичне структуре и масивне текстуре. Серпентинисани харцбургити и серпентинити Брђана су изграђени од серпентина, ретких реликата оливина и ортопироксена, акцесорног спинела, и веома ретког секундарног магнезита и магнетита. Најдоминантнији састојак (местимично гради и преко ...
    Рудник, Брђани, харцбургити, серпентинити, талк
    ... Schweiz. Mineral. Petrogr. Mitt., pp. 79-93. FAUST, T. G. & FAHEY, J. J. (1962): The Serpentine-Group Minerals - Studies of the natural phases in the system MgO-SiO2-H2O and the systems containing the congeners of magnesium. Geological Survey professional paper, 384-A, pp. 99. United States Government ...
    ... Oxford University Press, New York, 277 pp. TROMMSDORFF, V. & EVANS, W. B. (1977): Antigorite-Ophicarbonates: phase relations in a portion of the system CaO–MgO–SiO2–H2O–CO2. Contrib. Mineral. Petrol. 60, 39-56. VELDE, B. (1988): Experimental pseudomorphism of diopside by talc and serpentine in (Ni ...

  • Integracija heterogenih tekstualnih resursa

    Ranka Stanković, Ivan Obradović (2007)
    U radu je opisan pristup integraciji heterogenih tekstualnih resursa za srpski jezik uz pomoć jednog kompleksnog softverskog alata, razvijenog specijalno za ove potrebe. Opisani su struktura i osnovne komponente razvijenog sistema. Iznete su i mogućnosti unapređivanja resursa međusobnom razmenom informacija, koje pruža razvijeno integrisano okruženje. Konačno, opisana je i mogućnost primene integrisanih heterogenih resursa za proširenje upita, kao i pretraživanje tekstova uopšte, a naznačeni su i neki od pravaca daljeg razvoja.
    ... this paper we outline the structure and main components of the system we developed under the name of WS4LR (WorkStation for Lexical Resources), which synchronously handles corpora of Serbian, multilingual aligned corpora, a system of morphological dictionaries for Serbian, the Serbian wordnet and ...

  • Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)

    Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović (2014)
    Sphene (CaTiSiO5), a calcium titanosilicate ceramic has been prepared from a powder mixture of CaCO3, TiO2 and SiO2 using vibro-milling for homogenization and activation of precursors. During the highpressure and high-temperature synthesis (HPS) process at 4 GPa and 1,200 °C, sphene undergoes into phase transition, from room-temperature phase P21/a to high-temperature phase A2/a. Evidence of that structural phase transition is given in this paper using infrared, Raman spectroscopy and X-ray powder diffraction. Rietveld refinement was employed to get the ...
    Sphene, Phase transition, Raman spectroscopy, X-ray diffraction, SEM, IR

  • Истраживањe могућности коришћења нискотемпературних извора топлоте за одрживи развој енергетике градова

    Miodrag M. Grujić (2014-06-04)
    Одрживост је континуиран процес балансирања између животне средине, економске исоцијалне димензије, који се односи на системска побољшања животног окружења.Енергија се налази међу покретачима одрживог развоја везано за потребу за повећањесоцијалног благостања, његову кључну улогу у економском развоју и утицај на животнусредину. Урбане зоне, као центри потреба за енергијом и емисија угљеника, пружајузначајне могућности за промоцију одрживости енергетског система заједнице.Планирање нових енергетских капацитета, у складу са принципима одрживог развоја,обухвата спровођење политике повећања енергетске ефикасности и увођења обновљивихизвора енергије. Дисертација ставља ...
    одрживи развој, даљинско грејање, модел, сценарио, вишекритеријумскаанализа, нискотемпературни извори, ELECTRE, Београд
    ... Bakic V. An analytical method for the measurement of energy system sustainability in urban areas. Energy 2010;35(9):3909-20. [24] Jovanovic M, Afgan N, Radovanovic P, Stevanovic V. Sustainable development of the Belgrade energy system. Energy 2009;34(5):532-39. [25] Jovanovic M, Turanjanin ...
    ... G, Duic N. A 100 % renewable energy system in the year 2050: The case of Macedonia. Energy 2012;48(1):80-87. [71] Cosic B, Markovska N, Krajacic G, Taseska V, Duic N, Environmental and economic aspects of higher RES penetration into Macedonian power system. Applied Thermal Engineering 2012 ...
    ... energy. Due to the possibility of using low temperature sources, the dissertation's focus is on the future needs of the centralized heat supply system, so the proposed model is applied for selection the optimal option for the construction of the new heat source. The proposed options were compared ...

  • FrameNet Lexical Database: Presenting a Few Frames Within the Risk Domain

    Aleksandra Marković, Ranka Stanković, Natalija Tomić, Olivera Kitanović (2021)
    U radu se daje kratak prikaz teorije semantike okvira, na kojoj je zasnovana leksička baza Frejmnet. Predstavljena je koncepcija ove mreže, kao i mogućnosti njene primene. Predstavljena je i leksička analiza koja se primenjuje u projektu izrade Frejmneta i ukazano na razlike između analize zasnovane na okviru u odnosu na analizu zasnovanu na reči. Zatim je prikazano nekoliko povezanih okvira koje prizivaju reči iz domena rizika. U radu je predstavljena i platforma NLTК pomoću koje se mogu koristiti ...
    Srpski jezik, semantika okvira, FrameNet, scenario rizika, rudarski korpus, obrada prirodnog jezika
    ... online dictionary whose entries are frames rather than lexemes, as found in paper dictionaries, providing a notation better suited to such a complex system. Conceived in such a manner, an online dictionary allows for represen- tation of individual frame elements and their diverse syntactic realizations ...
    ... different types of text processing, amongst which are: classification, tokenization, stemming, tagging, parsing and se- mantic reasoning. The NLTK system uses wrappers for other Python natural language processing and lexical resource libraries. One of the APIs available within NLTK is FrameNet and the ...
    ... September 2021 Scientific paper Stanković, Ranka, Cvetana Krstev, Biljana Lazić, and Mihailo Škorić. 2018. “Electronic dictionaries-from file system to lemon based lexical database.” In Proceedings of the 11th LREC - W23 6th Workshop on Linked Data in Linguistics: Towards Linguistic Data Science ...

  • A Multilingual Evaluation Dataset for Monolingual Word Sense Alignment

    Sina Ahmadi, John P McCrae, Sanni Nimb, Fahad Khan, Monica Monachini, Bolette S Pedersen, Thierry Declerck, Tanja Wissik, Andrea Bellandi, Irene Pisani, [...] Ranka Stanković and others (2020)
    Aligning senses across resources and languages is a challenging task with beneficial applications in the field of natural language processing and electronic lexicography. In this paper, we describe our efforts in manually aligning monolingual dictionaries. The alignment is carried out at sense-level for various resources in 15 languages. Moreover, senses are annotated with possible semantic relationships such as broadness, narrowness, relatedness, and equivalence. In comparison to previous datasets for this task, this dataset covers a wide range of languages ...
    lexical semantic resources, sense alignment, lexicography, language resource
    ... Bodenreider, O. (2001). Comparing terms, concepts and semantic classes in WordNet and the Uni- fied Medical Language System. In in WordNet and the Unified Medical Language System. Proc NAACL Work- shop, WordNet and Other Lexical Resources: Applica- tions, Extensions and Customizations, pages 77–82 ...
    ... language: Word senses in Wiktionary. In In Second Web Science Conference. Miles, A. and Bechhofer, S. (2009). SKOS simple knowl- edge organization system reference. W3C recommenda- tion, 18:W3C. 3241 Miller, T. and Gurevych, I. (2014). Word- Net—Wikipedia—Wiktionary: Construction of a three-way ...

  • Енергетска безбедност Европске уније у светлу актуелне енергетске транзиције

    Бобан Павловић, Дејан Ивезић (2021)
    Енергетска стратегија Европске уније, која од 2015. године обухвата и циљеве у области климатских промена, тежи изградњи „енергетске уније” која потрошачима из ЕУ даје сигурну, приступачну, чисту и одрживу енергију. Енергетска политика ЕУ поставља пред себе амбициозне циљеве у погледу коришћења обновљивих извора – учешће од 32% до 2030. године. Овако опсежну и динамичну енергетску транзицију у Европи усложњава хетерогеност националних енергетских система у погледу структуре енергетског микса, нивоа увозне зависности, као и нивоа технолошког, друштвеног и економског ...
    енергетска безбедност, Европска унија, енергетски показатељи, природни гас, обновљиви извори енергије
    ... Heinrichs, H., Hake, J.-F., Allelein, H.-J., “Natural gas as a bridge to sustainability: Infrastructure expansion regarding energy security and system transition”, Applied Energy, 251, 2019, 113377. 3. EC, European Commission, Energy security, ЕС, 2020, https://ec.europa.eu/energy/topics/energ ...

  • Избор одговарајуће механичке методе

    Анастасија Мирјанић (2024)
    Експлоатација нафте и гаса кључна је за задовољење глобалних енергетских потреба. Различите методе се користе за ефикасно вађење тих природних ресурса из земљe. Механичке методе експлоатације, које укључују различите врсте пумпи и компресора, играју значајну улогу у овом процесу. У нафтној индустрији, ефикасно вађење нафте и гаса зависи од избора одговарајуће технологије пумпања. Две од најраспрострањенијих технологија су дубинске пумпе са клипним шипкама (енгл. Sucker rod pumps- SRP) и електричне потапајуће пумпе (енгл. Electrical submersible pump- ESP). Овај завршни рад ће ...
    дубинске пумпе са клипним шипкама, замена, електрична потапајућа пумпа, производња, бушотина