Претрага
584 items
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Transboundary groundwater resources of Serbia - present status and future needs for sustainable management
Republic of Serbia is located at the crossroads of Southeast and Central Europe and belongs to the Central Balkans. With its 88,360 km2, Serbia is one of the larger countries of the Balkan Peninsula. It borders 8 countries and has at least one transboundary aquifer (TBA) with each of them. According to evaluation conducted for UNECE in 2008, Serbia has a total of 17 TBAs, out of which 15 are shared with one neighboring country, while two aquifers are shared with two or three ...Veljko Marinović, Branislav Petrović, Zoran Stevanović. "Transboundary groundwater resources of Serbia - present status and future needs for sustainable management" in Second International UNESCO Conference on Transboundary Aquifers, “ISARM2021: Challenges and the way forward”, Paris 2021, United Nations Educational, Scientific and Cultural Organization, 7, place de Fontenoy, 75352 Paris 07 SP, France (2021)
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The final closure of the Vardar Ocean: paleomagnetic, AMS and structural results
... general NE-SW orientation of thecompressional stress field outside of the zone. Acknowledgement. This work was financially supported by the National Development andInnovation Office of Hungary, project K 128625 and by the Ministry of Education and Science of theRepublic of Serbia, project 176015. Powered ...Emö Márton, Marinko Toljić, Vesna Lesić, Vesna Cvetkov. "The final closure of the Vardar Ocean: paleomagnetic, AMS and structural results" in EGU General Assembly 2020, Copernicus GmbH (2020). https://doi.org/10.5194/egusphere-egu2020-17266
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Automatic construction of a morphological dictionary of multi-word units
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, multiwordn units, noun phrases, query expansion... University of Belgrade 2 Faculty of Mining and Geology, University of Belgrade 3 Faculty of Mathematics, University of Belgrade Abstract. The development of a comprehensive morphological dictio- nary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology ...
... the information they offer and the methodology used to produce them (without statistical engineering). 2 Analysis of Initial Data We based the development of the automated procedure for DELAC construc- tion on the initial dictionary of MWUs, which contained 3195 lemmas covering different part of speech ...
... automatic production of DELAC entries is a module of the LeXimir tool [6], which is written in C# and operates on the .NET platform. It supports development, maintenance and exploitation of various resources: e- dictionaries, wordnets, and aligned texts. A user of this tool need not use all of these resources ...Cvetana Krstev, Ranka Stanković, Ivan Obradović, Duško Vitas, Miloš Utvić. "Automatic construction of a morphological dictionary of multi-word units" in Lecture Notes in Computer Science 6233, Advances in Natural Language Processing, Proceedings of the 7thInternational Conference on NLP, IceTAL 2010, Reykjavik, Iceland, August 2010, Springer (2010): 226-237. https://doi.org/10.1007/978-3-642-14770-8_26
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Serbian NER&Beyond: The Archaic and the Modern Intertwinned
U ovom radu predstavljamo srpski književni korpus koji se razvija pod okriljem COST Akcije „Distant Reading for European Literary History” CA16204. Koristeći ovaj korpus romana napisanih pre više od jednog veka, razvili smo i učinili javno dostupnim Sistem za prepoznavanje imenovanih entiteta (NER) obučen da prepozna 7 različitih tipova imenovanih entiteta, sa konvolucionom neuronskom mrežom (CNN), koja ima F1 rezultat od ≈91% na test skupu podataka. Ovaj model je dalje ocenjen na posebnom skupu podataka za evaluaciju. Završavamo poređenje ...... , we ran- domly shuffled and split these sentences into training, test and development sets with the ratio of 8:1:1, i.e. 34,503 sentences in the train set, and the same number of sentences, 4,313, in the test and development sets, respectively. These sentences were prepared as Python list-objects ...
... e-dictionaries in particular (Kr- stev, 2008), coupled with local grammars in the form of finite-state transducers (Vitas and Krstev, 2012), enabled the development of a comprehensive rule-based system for NER Srp- NER. This system presented by Krstev et al. (2014) targeted 11 classes of NEs: dates and time ...
... ended up after 11 epochs (the number of epochs is automatically generated), having 93.33%, 90.14% and 91.71% F1 score, precision and recall, on the development set, respectively. 4.3 Evaluation Afterwards, we examined our model’s perfor- mance on the test set. We run the previously trained model on raw ...Branislava Šandrih Todorović, Cvetana Krstev, Ranka Stanković, Milica Ikonić Nešić. "Serbian NER&Beyond: The Archaic and the Modern Intertwinned" in Proceedings of the Conference Recent Advances in Natural Language Processing - Deep Learning for Natural Language Processing Methods and Applications, INCOMA Ltd. Shoumen, BULGARIA (2021). https://doi.org/10.26615/978-954-452-072-4_141
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A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice
Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper, we ...... INVENTS Hybrid System As we have already mentioned, the outlined approach to mine ventilation planning and design served as the basis for the development of a hybrid system named INVENTS (INtegrated VENtilation System).4 Figure 2 illustrates the place of INVENTS has in our approach to mine ventilation ...
... The object-oriented approach in system structuring and modeling1 was used as the strategy for defining the model of processes and data in the development of INVENTS. In this paper, UML (Unified Modeling Language) as a standard language for visualization, specification, constructing and documenting ...
... /2 6 /1 5 . F o r p er so n al u se o n ly . 366 N. Lilić, I. Obradović & R. Stanković software was adopted for the software development analysis phase. The task of visual modeling of the system is to define the objects and logic of the real system using the adopted graphic notation ...Nikola Lilić, Ivan Obradović, Ranka Stanković. "A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice" in Mineral Resources Engineering 11 no. 4, Imperial College Press (2002): 361-382. https://doi.org/10.1142/S0950609802001014
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Bilingual lexical extraction based on word alignment for improving corpus search
Jelena Andonovski, Branislava Šandrih, Olivera Kitanović. "Bilingual lexical extraction based on word alignment for improving corpus search" in The Electronic Library, Emerald (2019). https://doi.org/10.1108/EL-03-2019-0056
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The application of ArcGIS for assessing the potential of solar energy in urban area: The case of Vranje
In order to determine the solar energy potential for a specified location, it is crucial to consider the latitude, altitude, slope, terrain morphology, atmospheric conditions, etc. Such a complex calculation and mapping of solar energy can be done using the ArcGIS geoprocessing tool, named Area Solar Radiation (ASR). By using the ASR tool, supported with the adequate input data, it is possible to calculate the maximum solar radiation energy (irradiation) for a defined area and for a specified time ...... evaluation of the solar energy potential. However, high costs of installation and maintenance of the meteorological stations promoted the development of ##different methods to estimate the global solar irradiation from the available data. There are several models - available to be used by the ...
... plant (Republic of Serbia, 2016). Other areas in reneWable energy, potentially with lower levels of environmental impact, show low levels of development. The utilization of other renewable sources of energy, such as wind, solar, and geothermal, is marginal (Lewis M., 2018). The estimated potential ...
... Serbian language". Republic of Serbia, Ministry of Mining and Energy, Department for strategic planning in energy sector, 2016. "Energy Sector Development Strategy of the Republic of Serbia for the period by 2025 with projections by 2030.", (Available at: https://www.mre.gov.rs/doc/efikasnost- izvori/23 ...Boban Pavlović, Milica Pešić-Georgiadis. "The application of ArcGIS for assessing the potential of solar energy in urban area: The case of Vranje" in 12th International Conference on Energy and Climate Change, 9-11 October 2019, Athens - Greece, Energy Policy and Development Centre (KEPA) of the National and Kapodistrian University of Athens (2019)
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Definition of Circulation Conditions and Groundwater Genesis of the Complex Krupaja Hydrogeological Karst System (Eastern Serbia)
Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment, Geography, Planning and Development, Building and Construction... of karst channels that are zonally distributed within a vertical profile; this was confirmed by assessing, the groundwater ages. Based on the development of karstification, as presented in this paper, as well as on previous investigations, explanations of four types of circulation within same karst ...
... groundwater circulation within a karst system. Various researchers have attempted to form 3D models of karst channels, which has led to the development of completely new techniques and programs for the purpose of analyzing the distribution and position of karst channels within a karst system [4-7] ...
... type of groundwater circulation within karst aquifers with highly developed karst channels. The results of this research sug;geessted possible development mechanisms of these karst channels and indicated that they may function as part of an aquifer that is completely dependent on recharge and whose ...Ljiljana Vasić, Saša Milanović, Tina Dašić. "Definition of Circulation Conditions and Groundwater Genesis of the Complex Krupaja Hydrogeological Karst System (Eastern Serbia)" in Sustainability, MDPI AG (2023). https://doi.org/10.3390/su151411146
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Model upravljanja investicionim projektima otvaranja površinskih kopova uglja
Cvjetko P. Stojanović (2015-04-27)Brze promene u okruženju pred rukovodioce postavljaju mnogobrojne zahteve,pre svega, one koji se tiču ostvarenja ciljeva u zadatom vremenu i raspoloživimsredstvima što zahteva fleksibilan pristup u organizovanju aktivnosti i efikasnost unjihovom sprovođenju.Upravljanje projektima, bilo koje vrste, suštinski, predstavlja veoma složenproces odlučivanja uslovljen velikim brojem ulaznih faktora. Ti faktori treba daomoguće fokusiranje na prioritete i ciljeve, praćenje realizacije, fleksibilnost uprevazilaženju teškoća, prilagođavanje promenama, te kontrolu nad ostvarenimrezultatima. Ovakav način upravljanja zahteva korišćenje proverenih tehnika i alata tetimski rad angažovanih na ...Cvjetko P. Stojanović. "Model upravljanja investicionim projektima otvaranja površinskih kopova uglja" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-04-27)
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Model upravljanja investicionim projektima otvaranja površinskih kopova uglja
Cvjetko P. Stojanović (2015-04-27)Brze promene u okruženju pred rukovodioce postavljaju mnogobrojne zahteve,pre svega, one koji se tiču ostvarenja ciljeva u zadatom vremenu i raspoloživimsredstvima što zahteva fleksibilan pristup u organizovanju aktivnosti i efikasnost unjihovom sprovođenju.Upravljanje projektima, bilo koje vrste, suštinski, predstavlja veoma složenproces odlučivanja uslovljen velikim brojem ulaznih faktora. Ti faktori treba daomoguće fokusiranje na prioritete i ciljeve, praćenje realizacije, fleksibilnost uprevazilaženju teškoća, prilagođavanje promenama, te kontrolu nad ostvarenimrezultatima. Ovakav način upravljanja zahteva korišćenje proverenih tehnika i alata tetimski rad angažovanih na ...Cvjetko P. Stojanović. "Model upravljanja investicionim projektima otvaranja površinskih kopova uglja" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-04-27)
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The Effect of Gravel and Sand Mining on Groundwater and Surface Water Regimes — A Case Study of the Velika Morava River, Serbia
Milan Kresojević, Vesna Ristić Vakanjac, Dragan Trifković, Jugoslav Nikolić, Boris Vakanjac, Dušan Polomčić, Dragoljub Bajić (2023)Овај рад описује како неконтролисано и нелегално откопавање песка и шљунка може утицати на режим површинских и подземних вода на местима где постоји активна хидрауличка веза између њих, са студијом случаја реке Велике Мораве у Србији. Такође, промена геометрије попречног профила, као последица антропогених и природних фактора, отежава уливање ове реке за укључивање у водне токове Србије. Плодност Велике Мораве омогућила би развој речног саобраћаја како за трговачке бродове, тако и за пловила Речне флотиле Војске Србије. Корелације између ...Milan Kresojević, Vesna Ristić Vakanjac, Dragan Trifković, Jugoslav Nikolić, Boris Vakanjac, Dušan Polomčić, Dragoljub Bajić. "The Effect of Gravel and Sand Mining on Groundwater and Surface Water Regimes — A Case Study of the Velika Morava River, Serbia" in Water, MDPI AG (2023). https://doi.org/10.3390/w15142654
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On the compatibility of lexical resources for NooJ
Lexical resources for many languages are provided for the NooJ linguistic development environment. Meta-data descriptions of morphosyntactic and semantic properties of these languages and their resources are a mandatory part of each language module. In this paper we analyze how well the meta-data actually describe resources for a chosen subset of languages and to what extent are they compatible across languages to support multilingual processing. We show that there is place for improvement in both directions.... UTVIĆ, DUŠKO VITAS, CVETANA KRSTEV AND IVAN OBRADOVIĆ Abstract Lexical resources for many languages are provided for the NooJ linguistic development environment. Meta-data descriptions of morphosyntactic and semantic properties of these languages and their resources are a mandatory part of ...
... resources, namely the extent to which they mutually correspond is thus becoming an important issue, especially given the perspective of the development of an open source version of NooJ within the framework of the CESAR project1. Namely, it is expected for NooJ to become an open source product ...
... components, albeit compatible with them. From the point of view of Serbian, there was additional interest in this issue in view of the fact that the development of a new Serbian module for NooJ is underway. The analysis of compatibility of NooJ resources outlined in this paper was tackled by a comparison ...Ranka Stanković, Miloš Utvić, Duško Vitas, Cvetana Krstev, Ivan Obradović. "On the compatibility of lexical resources for NooJ" in Automatic Processing of Various Levels of Linguistic Phenomena: Selected Papers from the 2011 International Nooj Conference, Cambridge Scholars Publishing (2012): 96-108
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Linear-motor plunger pump increases lifting efficiency
Bojan Martinović, Dušan Đekić, Dušan Danilović, Pavel Isaev. "Linear-motor plunger pump increases lifting efficiency" in Oil & Gas Journal (2022)
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Upravljanje proizvodnjom nafte – novi alat na bazi fazi logike
... uticaj; Abstract: In free market agriculture and rural development of Serbia, there are factors significant for the development of the overall economy. Natural reources in Serbia are not employed enough in agriuculture and rural development. In this paper the authors deal with the agrarian entr ...
... product development, as well as monitoring trends in the development of new materials are necessary elements in engineering practice. Data on available materials and their characteristics are available in various forms, where the electronic form has been singled out due to the development of information ...
... Laboratory for engineering analysis, modeling and simulation“ funded by the Ministry of Education, Science and Technological Development within the program activity “Development of high education” was implemented in school year 2018/2019. Within the project, a laboratory for engineering analysis, modeling ...Мирослав Црногорац, Душан Даниловић, Лола Томић. "Upravljanje proizvodnjom nafte – novi alat na bazi fazi logike" in IX Naučno stručni skup Preduzetništvo, inženjerstvo i menadžment Zrenjanin, 24.10.2020. god., Visoka tehnička škola strukovnih studija u Zrenjaninu (2020)
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OER obrazovni sadržaji kao spona između akademskog i preduzetničkog znanja
... Cultural Organisation) da 2002. zvanično prihvati i definiše OER sadržaje. Nešto kasnije, 2007. godine, OECD (Organisation for Economic Cooperationand Development) je objavio studiju o upotrebi i širenju OER sadržaja [4], a formiran je i Konzorcijum za otvoreno obrazovanje (OCW Consortium) kao svetska mreža ...
... practice around a learning resource repository. In: Computers & Education 69, 2013, 287–302. [4] Organization for Economic Cooperation and Development [OECD]. (Giving knowledge for free: The emergence of open educational resources. Retrieved from. http://www.oecd.org/edu/ceri/38654317.pdf, 2007 ...
... [7] P. McAndrew, A. Santos, S. Godwin. Opening up for OpenLearn: issues in providing open educational resources. In Proceedings of CAL07: Development, disruption and debate – D3, 2007, Dublin, Ireland. [8] A. Margaryan, M. Bianco, A. Littlejohn. Instructional quality of Massive Open Online Courses ...Ivan Obradović, Ranka Stanković, Marija Radojičić. "OER obrazovni sadržaji kao spona između akademskog i preduzetničkog znanja" in The fifth Symposium Mathematics and Applications 2014,17-18 October 2014, Belgrade V no. 1, Beograd : Matematički fakultet Univerziteta u Beogradu (2014)
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Serbian Society of Geomorphologists
Dragana Đurić, Jelena Ćalić (2019)Dragana Đurić, Jelena Ćalić. "Serbian Society of Geomorphologists" in GeomorForum 2019: Landforms related to plains of Serbia and its neighboring area, Conference Programme and Abstracts, Beograd, 10-12. maj 2019, Serbian Society of Geomorphologists (2019)
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Indeksi kontrole održavanja i korišćenja rotornog bagera
Razvoj površinske eksploatacije se u velikom stepenu zasniva na svestranoj mehanizaciji rudarskih radova. Kako bi se zadovoljili potrebni kapaciteti, neophodna je primena savremene mehanizacije, velikih kapaciteta i pouzdanosti u radu. Naime, sa stepenom povećanja mehanizovanosti radova smanjuje se broj zaposlenih radnika, povećava produktivnost rada, smanjuju troškovi po jedinici proizvoda, a samim tim i povećava ekonomičnost površinske eksploatacije. Predmet istraživanja su rotorni bageri SRs 1200 koji predstavljaju samohodne mašine kontinuiranog dejstva namenjene za otkopavanje jalovine i korisne supstance na površinskim ...Jovana Mitrović, Predrag Jovančić, Dragan Ignjatović, Stevan Đenadić, Filip Miletić. "Indeksi kontrole održavanja i korišćenja rotornog bagera" in XI Međunarodna konferencija "Ugalj i kritični minerali 2023", CCM 2023, Zlatibor, 11-14. oktobar 2023., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
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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... research. The realistic scenario predicts a solid level of energy development, a limited degree of achieved economic development and available funds for investment. The optimistic scenario foresees an expansive economic development, energy, infrastructure and industrial production and increasing ...
... SUSTAINABLE ENERGY DEVELOPMENT OF CITIES SUMMARY Balancing of environmental, economic and social issues is the essence of sustainability. That is continuous process, related to our living environment and their systematic improvements. For sustainable development, energy is one of the ...
... the most important drivers. Improving the social welfare, economic development, but also environmental impacts are closely related to energy development. Urban areas are the centers of energy demand and carbon emissions. For that reason, cities are the places where the actions for promoting the s ...Miodrag M. Grujić. "Истраживањe могућности коришћења нискотемпературних извора топлоте за одрживи развој енергетике градова" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-06-04)
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Joint interpretation of paleomagnetic, structural and AMS results from the Vardar Zone of Serbia
Emo Marton, Marinko Toljić, Vesna Lesić, Vesna Cvetkov. "Joint interpretation of paleomagnetic, structural and AMS results from the Vardar Zone of Serbia" in 18th Meeting of the Central European Tectonic Studies Group (CETEG) & 25th Meeting of the Czech Tectonic Studies Group, 22-25th April, 2021, Terchová, Slovakia, Department of Geological Sciences, Masaryk University in cooperation with the Czech Geological Survey, IPE MU Brno and UK Praha (2021)
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Multihazard Exposure Assessment on the Valjevo City Road Network
Miloš Marjanović, Biljana Abolmasov, Svetozar Milenković, Uroš Đurić, Jelka Krušić, Mileva Samardžić Petrović (2019)Miloš Marjanović, Biljana Abolmasov, Svetozar Milenković, Uroš Đurić, Jelka Krušić, Mileva Samardžić Petrović. "Multihazard Exposure Assessment on the Valjevo City Road Network" in Spatial Modeling in GIS and R for Earth and Environmental Sciences, Elsevier Inc (2019). https://doi.org/10.1016/B978-0-12-815226-3.00031-4.