Претрага
717 items
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Climate change and their imapct on karst groundwater
Milan Đelić, Vesna Ristić Vakanjac (2021)In the last 30 years, there have been progressively more dry and rainy years, a reduced presence or even absence of snow cover, an increase in air temperature, large-scale fires, intensified glacier melting, and the like. Climate change certainly has an effect on all areas of economic activity, but its largest impact is on water resources and existing ecosystems. One of the most important water resources is groundwater, on account of which more than 70% of the population of ...Milan Đelić, Vesna Ristić Vakanjac . "Climate change and their imapct on karst groundwater" in Book of proceedings of the 3rd International Scientific Conference on vircular and bioeconomy CIBEK2021, Belgrade, Belgrade : School of Engineering Management (2021)
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Three new Sr-bearing arsenates, hydrothermally synthesized in the system SrO–MO–As2O5–H2O (M2+ = Mg, Cu, Zn)
Tamara Đorđević, Ljiljana Karanović (2018)During systematic research on the mineral-related synthetic arsenates, with particular focus on their structural and spectroscopic classification, three new Sr-containing arsenates Sr2Mg(AsO4)2· 2H2O (1), Sr2Zn4(AsO4)4·H2O (2) and Sr2Cu7(AsO4)6 (3) have been synthesized under low-temperature hydrothermal conditions in the system SrO MO As2O5 H2O (M 2þ = Mg, Zn, Cu). Their crystal structures were determined using room-temperature single-crystal X-ray diffraction data and refined to the following R-values: 1– R1 = 0.025; 2– R1 = 0.030; 3– R1 = 0.035. Compounds ...стронцијум, арсен, арсенати, кристална структура, дифракција рендгенских зрака на монокристалима, хидротермална синтеза, Раманска спектроскопијаTamara Đorđević, Ljiljana Karanović. "Three new Sr-bearing arsenates, hydrothermally synthesized in the system SrO–MO–As2O5–H2O (M2+ = Mg, Cu, Zn)" in European Journal of Mineralogy, Schweizerbart (2018). https://doi.org/10.1127/ejm/2018/0030-2749
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Development and Evaluation of Three Named Entity Recognition Systems for Serbian - The Case of Personal Names
In this paper we present a rule- and lexicon-based system for the recognition of Named Entities (NE) in Serbian news paper texts that was used to prepare a gold standard annotated with personal names. It was further used to prepare training sets for four different levels of annota tion, which were further used to train two Named Entity Recognition (NER) sys tems: Stanford and spaCy. All obtained models, together with a rule- and lexicon based system were evaluated on ...... SRPNER. The new version of this system recognizes more variations for naming persons: distinguished per- sons and first names alone. Moreover, system dis- tinguishes names used for men from those used for women (Krstev et al., 2015). Presented results show that the system was more successful in rec- ognizing ...
... than women. The output of the system are texts with XML tags for recognized entities inserted in them. Since the system allows embedded NEs, recognized names of persons can be components of other NEs, e.g. organizations. 2.2 The Preparation of the Gold Standard The system presented in the previous section ...
... obtained models, together with a rule- and lexicon- based system were evaluated on two sam- ple texts: a part of the gold standard and an independent newspaper text of approx- imately the same size. The results show that rule- and lexicon-based system out- performs trained models in all four sce- narios (measured ...Branislava Šandrih, Cvetana Krstev, Ranka Stanković. "Development and Evaluation of Three Named Entity Recognition Systems for Serbian - The Case of Personal Names" in Proceedings - Natural Language Processing in a Deep Learning World, Incoma Ltd., Shoumen, Bulgaria (2019). https://doi.org/10.26615/978-954-452-056-4_122
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Risk Evaluation: Brief Review and Innovation Model Based on Fuzzy Logic and MCDM
Stevan Djenadic, Milos Tanasijevic, Predrag Jovancic, Dragan Ignjatovic, Dejan Petrovic, Ugljesa Bugaric (2022)The risk assessment of engineering systems represents an important part of the quality of service and dependability. The existing methods for risk evaluation use crisp sets for rating partial indicators’ proposition and their cumulative products as an overall indicator. In this paper, existing FMEA and FMECA methods have been improved using the fuzzy expert system for calculating the risk priority number. The application of fuzzy logic allows the use of linguistic descriptions for risk analysis. In this way, the ...Stevan Djenadic, Milos Tanasijevic, Predrag Jovancic, Dragan Ignjatovic, Dejan Petrovic, Ugljesa Bugaric. "Risk Evaluation: Brief Review and Innovation Model Based on Fuzzy Logic and MCDM" in Mathematics, MDPI AG (2022). https://doi.org/10.3390/math10050811
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Validation of vulnerability assessment by means of the Time Dependent, Model: case study from the Slovenian karst catchment
Groundwater vulnerability assessment methods are continuously being developed and existing methods are very often modified to provide better simulation of natural protection conditions and more objective results. Most frequently used methods are based on calculation of predefined parameters influencing water infiltration and underground flow, which can often lead to bias conclusions related to vulnerability evaluations. Some other methods, like the Time Dependent Model (TDM) are based on an approach, where parametrization is obtained at the final stage of the ...Ocena ranjivosti podzemnih voda, karstne podzemne vode, TDM metoda, delineacija sanitarnih zona, Slovenački karstVladimir Živanović, Nataša Ravbar, Igor Jemcov. "Validation of vulnerability assessment by means of the Time Dependent, Model: case study from the Slovenian karst catchment" in Proceedings of IAH2019, the 46th Annual Congress of the International Associaton of Hydrogeologists, Málaga (Spain), September 22-27, 2019, International Association of Hydrogeologists (IAH) (2019)
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A bilingual digital library for academic and entrepreneurial knowledge management
A generic knowledge management process of organization, storage and retrieval of knowledge can suitably be fitted in a digital library. In the digital and knowledge age digital libraries can be used in knowledge management to handle intellectual assets and support knowledge creation. A multilingual digital library either stores content in more than one language or provides multilingual query access to monolingual content. In Serbia 18 of 308 scientific journals regularly published are bi-lingual, with papers simultaneously being in English ...... information system of Serbia (GeolISS) was financed by the Ministry of Environmental Protection during the period 2004–2006, and is presently maintained by Ministry of Mining and Energy. Many institutions working with geological data are using GeolISS. 4http://rudonto.rgf.bg.ac.rs/ is the system of ontologies ...
... multiword). By default, the system will search all collections, but the user can restrict it by selecting a particular collection from the dropdown list of available collections. Resources that will be used for query expansion are automatically selected by the system depending on the domain of the ...
... (e.g. deleting or adding terms manually), the system performs semantic and multilingual query expansion. If the user so specifies, Bibliša forwards this query for further morphological expansion, based on morphological e-dictionaries, the system of rules for multi-word inflection, and finite ...Ranka Stanković, Cvetana Krstev, Biljana Lazić, Dalibor Vorkapić. "A bilingual digital library for academic and entrepreneurial knowledge management" in Proceeding of 10th International Forum on Knowledge Asset Dynamics — IFKAD 2015: Culture, Innovation and Entrepreneurship: connecting the knowledge dots, Bari, Italy, 10-12 June 2015, Bari : IFKAD (2015)
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Regulacija karstne izdani u okviru regionalnog vodoprivrednog sistemaBogovina= Management of karstic aquifer of regional water system „Bogovina“ (Eastern Serbia)
Stevanović Zoran (2010)Stevanović Zoran. Regulacija karstne izdani u okviru regionalnog vodoprivrednog sistemaBogovina= Management of karstic aquifer of regional water system „Bogovina“ (Eastern Serbia), Beograd:Rudarsko-geolološki fakultet, Departman za hidrogeologiju, 2010
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GIS/GPS/GPRS based mechanization monitoring dispatch system at open pits
Vušović Nenad, Denić Miodrag, Čokorilo Vojin, Stojadinović Saša. "GIS/GPS/GPRS based mechanization monitoring dispatch system at open pits" in Proceedings from IOC 2011 Internatioanl October Conference, Kladovo:TF, Bor (2011): 533-536
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A System for Named Entity Recognition Based on Local Grammars
Krstev Cvetana, Obradović Ivan, Utvić Miloš, Vitas Duško. "A System for Named Entity Recognition Based on Local Grammars" in Journal of Logic and Computation 24 no. 2, :Oxford University Press (2014): 473-489. https://doi.org/10.1093/logcom/exs079
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Proposition of a Landslide Monitoring System in Czech Carpathians
Marjanović Miloš, Caha Jan, Mirijovsky Jakub. "Proposition of a Landslide Monitoring System in Czech Carpathians" in Engineering geology for society and territory 2, Berlin, Germany:Springer (2014): 139-142. https://doi.org/10.1007/978-3-319-09057-3_14
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Dewatering system selection at the open cast Drmno using hydrodynamical forcasting calculations
Polomčić Dušan, Pavlović Vladimir, Šubaranović Tomislav. "Dewatering system selection at the open cast Drmno using hydrodynamical forcasting calculations" in X International Scientific Opencast Mining Conference OMC, Zlatibor: (2012): 275-290
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Designing of the maintenance system for mining equipment at serbian lignite open pits – strategy definition
Jovančić Predrag, Ignjatović Dragan (2010)Jovančić Predrag, Ignjatović Dragan. "Designing of the maintenance system for mining equipment at serbian lignite open pits – strategy definition" in XX International Maintenance Conference EUROMAINTENANCE 2010 1, Verona:Associazione Italiana Manutenzione (AIMAN) (2010): 378-381
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Influence of Failure Mode Level of Complex Technical System with Serial Connection
Savković Snežana, Jovančić Predrag, Tanasijević Miloš. "Influence of Failure Mode Level of Complex Technical System with Serial Connection" in 21th Annual International Conference Composites/Nano Engineering ICCE-21 1, Tenerife, Spain:University of New Orleans (2013): 717-718
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Tangential stress in the well in the casing-cement stone-formation system
Čebašek Vladimir, Bošković Zvonimir, Mitrović Vladimir, Gojković Nebojša. "Tangential stress in the well in the casing-cement stone-formation system" in Technics Technologies Education Management / TTEM (2010): 495-501
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Stability, bifurcations, and dynamics of global variables of a system of bursting neurons
Franović Igor, Todorović Kristina, Vasović Nebojša, Burić Nikola. "Stability, bifurcations, and dynamics of global variables of a system of bursting neurons" in Chaos 21 no. 3, Koledž Park:American Institute of Physics (2011): 033109-1
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Generalization of the Sitnica river drainage system with potential pollution of tributaries
Valjarević Aleksandar, Radovanović Dragan, Srećković-Batoćanin Danica, Ivanović Radomir. "Generalization of the Sitnica river drainage system with potential pollution of tributaries" in Underground mining engineering- Podzemni radovi no. 26, Beograd:Rudarsko-geološki fakultet (2015): 43-55
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Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations
The Vršac Mts. in NE Serbia represent the key area to investigate structural relations between the Northern Serbo-Macedonian Subunit and Supragetic Unit of the Dacia Mega-Unit. The geodynamic events during the Variscan orogeny in the Late Paleozoic colligated the two units and led to their metamorphic differentiation. The Late Cretaceous extension exhumed the medium-grade Serbo-Macedonian metamorphic rocks and structurally juxtaposed them against the low-grade metamorphosed basement of the Supragetic Unit along an E-dipping shear zone, which outcrops in the ...severna srpsko-makedonska subjedinica, supragetikum, kinematska analiza, multifazna ekstenzionalna deformacija... Corridor (Fig. 1b). The final tectonic uplift of the Vršac Mts. occurred in middle to late Miocene times along the SW- dipping normal faults that control deposition in the Zagajica depression adjacent to the Vršac Mts. (Figs. 1b, 4e; Matenco & Radivojević 2012). Therefore, Miocene extension exhumed ...
... east (in present-day coordinates) of the Serbo- Macedonian Unit, the Supragetic Unit represents the upper- most nappe of the Dacia Mega-Unit nappe system, predomi- nantly comprised of low-grade greenschist facies metamorphic rocks (Fig. 1b, Kräutner & Krstić 2002; Iancu et al. 2005a; Schmid et al. ...
... Dinarides led to the E-ward subduction of the remaining Neotethys oceanic lithosphere beneath the European upper plate (i.e., the Sava subduction system, Schmid et al. 2020). Coevally, following the Early Cretaceous W-ward subduction and late Early Cretaceous closure of the Ceahlău–Severin Ocean ...Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić, Marija Ružić, Aleksa Luković . "Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2021). https://doi.org/https://doi.org/10.31577/GeolCarp.72.5.3
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Mineral-like phases in the MO-CdO-As2O5-H2O system (M2+ = Mg, Mn, Fe, Co, Ni, Cu, Zn)
Đorđević Tamara, Gerger Sabrina, Karanović Ljiljana. "Mineral-like phases in the MO-CdO-As2O5-H2O system (M2+ = Mg, Mn, Fe, Co, Ni, Cu, Zn)" in The 29th European Crystallographic Meeting, ECM29 MS14-15, Rovinj, Croatia: (2015): 303-303
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Wireless Sequential Blasting Initiation System
Kričak Lazar, Negovanović Milanka, Janković Ivan, Zeković Dario, Jovanović D.. "Wireless Sequential Blasting Initiation System" in Proceedings of IV Balkan Mining Congress BALKANMINE 2011, Ljubljana, Slovenia:Velenje Coal Mine (2011): 81-88
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New approach to correlation of hydrocarbon reservoirs in sandstone layers of the "Mokrin" field"
Saša Ivanišević, Dejan Radivojević (2018)геофизички каротаж, депозиционе средине, лежишта угљоводоника, миоцен, пост‐ рифтнo, секвенциона стратиграфија... opportunities of the Pannonian Basin”, 65–76. Juhasz, Gy., Pogacsas, Gy., Magyar, I., Vakarcs, G., 2007, Tectonic versus climatic control on the evolution of fluvio‐deltaic systems in a lake basin, Eastern Pannonian Basin.Sedimentary Geo‐ logy 202, 72–95. Matenco, L. C., ...
... igraphic units (Figure 1a) and reconstruction of depositional environ‐ ments, which also helps better understand the elements of the hydrocarbon system. Commercial quan‐ tities of hydrocarbons have been established in turbidite sandstones in the Banatsko Aranđelovo de‐ pression, west of the S ...Saša Ivanišević, Dejan Radivojević. "New approach to correlation of hydrocarbon reservoirs in sandstone layers of the "Mokrin" field"" in 17th Serbian Geological Congress, Vrnjačka Banja, 17-20 maj 2018, Srpsko geološko društvo (2018)