Претрага
150 items
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Effects of Energy Production and Consumption on Air Pollution in Serbia
Marija Živković (2019)Energy production and combustion, mostly from unregulated or inefficient fuel combustion, are the single most important anthropogenic sources of air pollutant emissions. Energy sector in Serbia is highly fossil fuel intensive: 87.88% of energy consumed in Serbia is related to fossil fuels, while almost 95% of energy sources are combusted. In 2017. energy related carbon dioxide emission in Serbia is was 47.95 million tones. The main source of carbon dioxide emission was coal, responsible for almost 70% of energy ...... For the case of Serbia data can be found in energy balances of the country 7. The trend and the structure of primary energy consumption for the last ten years are given in Figure 2. In 2017 total primary energy supply was 667890 TJ 8. It can be characterized as highly fossil intensive – 87.88% of energy ...Marija Živković. "Effects of Energy Production and Consumption on Air Pollution in Serbia" in Mining and Environmental Protection-MEP 2019, University of Belgrade, Faculty of Mining and Geology (2019)
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Electronic Dictionaries - from File System to lemon Based Lexical Database
In this paper we discuss some well-known morphological descriptions used in various projects and applications (most notably MULTEXT-East and Unitex) and illustrate the encountered problems on Serbian. We have spotted four groups of problems: the lack of a value for an existing category, the lack of a category, the interdependence of values and categories lacking some description, and the lack of a support for some types of categories. At the same time, various descriptions often describe exactly the same ...... standard for text encod- ing that proposes solutions for many text types, one of them being dictionaries. However, it seems that TEI is more of- ten used for traditional human-oriented digitized dictionar- ies (Khemakhem et al., 2017, Bański et al., 2017). The second option considered was the LMF ...
... surnames (close to 18,000) and surnames of foreign origin transcribed according to Serbian orthography (close to 7,500). Possessive adjectives are of- ten derived from surnames, e.g. Lazić← Lazićev and Ešton ← Eštonov (Serbian transcription for ‘Ashton’), as well as, in some cases, feminine nouns ...Ranka Stanković, Cvetana Krstev, Biljana Lazić, Mihailo Škorić. "Electronic Dictionaries - from File System to lemon Based Lexical Database" in Proceedings of the 11th International Conference on Language Resources and Evaluation - W23 6th Workshop on Linked Data in Linguistics : Towards Linguistic Data Science (LDL-2018), LREC 2018, Miyazaki, Japan, May 7-12, 2018, European Language Resources Association (ELRA) (2018)
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Vodosnabdevanje i održivo upravljanje podzemnim vodnim resursima u Srbiji
Dušan Polomčić, Zoran Stevanović, Dragoljub Bajić, Bojan Hajdin, Vesna Ristić-Vakanjac, Petar Dokmanović, Saša Milanović (2012)Slično većini evropskih zemalja, udeo podzemnih voda u javnom vodosnabdevanju u Srbiji je oko 75%. Najveće rezerve su akumulirane u vodonosnim naslagama intergranularne poroznosti neogene i kvartarne starosti, kao i u karstnim izdanima. One su jedini izvor vodosnabdevanja pijacom vodom za Vojvodinu i veći deo Srbije. Delovi sa malim rezervama podzemnih voda su Šumadija i južni delovi zemlje, gde se koriste u većoj meri površinske vode. Do sada izvedena hidrogeološka istraživanja pokazuju da se zahvata oko 30% obnovljivih rezervi ...... na porozna (kvartarna i neogena), karstna i ispucala. Jlerenga — [pannya Peny6nuke Cp6uje ©) Boawa noapyuia OO [paHuua Bogor Tena nogsemHux Boga 145 Pegun 6poj soqHor Tena noAseMHUX BoAa Kocogo 4 Meroxuja Slika 1. Karta sa ucrtanim podzemnim vodnim telima u Srbiji (Izvor: Zakon 0 odredivanju povrSinskih ...Dušan Polomčić, Zoran Stevanović, Dragoljub Bajić, Bojan Hajdin, Vesna Ristić-Vakanjac, Petar Dokmanović, Saša Milanović. "Vodosnabdevanje i održivo upravljanje podzemnim vodnim resursima u Srbiji" in Vodoprivreda, Beograd : Jugoslovensko društvo za odvodnjavanje i navodnjavanje (2012)
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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
... MD (1997) Geology of Yugoslavia. Geological Insti-tute - GEMINI, Belgrade, Spec. Publ., Monograph, I—197 Dumurdzanov N, Hristov S, Pavlovski B, Ivanova V (1981) Explana- tory notes for sheets Vitolište and Kajmakčalan. General geologi- cal map (1:100,000) of the Socialist Federal Republic of Yugosla- ...
... 250, with increments of 50. The RE modelling yielded both evaluation metrics and the predictive maps of ophiolites. Figure 6 presents a set of ten evaluation metrics that have been chosen to assess the performance of the model across various training data sets and different numbers of trees ...
... implemented on the RF_C_100_5MI model pertains to the considerable surplus in the number of predicted ophiolite class instances, which surpasses ten thousand, analogous to the statistical parity metric. In addition to variations in the predicted count of ophiolite instances, the KNN models are ...Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski. "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" in Earth Science Informatics, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s12145-024-01243-4
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Improvement of geodatabase queries within GeolISS
Ranka Stanković (2008)... Parameters for queries are defined in the geodatabase, but the user can update and insert new search definitions. There are 46 query criteria defined for ten spatial object types, each query having several attribute options. Figure 3 presents the form with query parameters: class of spatial objects, criteria ...Ranka Stanković. "Improvement of geodatabase queries within GeolISS" in Review of the National Center for Digitization, Beograd : Faculty of Mathematics, Belgrade (2008)
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Heavy metals in lignite and soil of Kostolac-Kovin coal basin, eastern Serbia - comparative analysis with selected cities in Serbia, region, Europe and world
Bogoljub Vučković, Bojan Dimitrijević (2023)The Kostolac-Kovin coal basin with an area of 320 km2, with 5 separate layers of coal and with a total of about 5.7 Bt of geological resources and reserves represents an exceptional potential for coal production in Serbia. The coal resources listed in this way are not fully exploitable, but they represent potential for consideration. In this paper, we deal with the geochemical characteristics of coal seams and perform a comparative analysis of coal affectation on the environment. With ...... Numerous analyzes were taken to determine the quality of lignite, as well as numerous others for geotechnical and hydrogeological purposes. In the last ten years, special attention has been paid to the ecological characteristics of lignite, and the contents of HM have also been determined. Apart from coal ...Bogoljub Vučković, Bojan Dimitrijević. "Heavy metals in lignite and soil of Kostolac-Kovin coal basin, eastern Serbia - comparative analysis with selected cities in Serbia, region, Europe and world" in 9th International Conference Mining and Environmental Protection, 24–27. May 2023, Sokobanja, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet (2023)
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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 ...Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac. "Flyrock induced by blasting in surface mining" in Rudarski glasnik, Beograd : Rudarski institut (2022). https://doi.org/10.25075/BM.2022.05
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Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings
... Majdanpek open pit were performed during blasting using half-second electric detonators. Delay time of initiation between boreholes was 0.5 s, which led to ten explosions and appropriate rock mass oscillation velocities. As explosive powdered ammonium nitrate for general purposes Amoneks-I manufactured by Trayal ...
... R, registered values of rock mass oscillation velocities by components vt, vv, vl and resulting rock mass oscillation velocities vrez for a total of ten explosions, are given in Table 1. Minerals 2018, 8, 70 10 of 18 Table 1. Survey of blasting parameters and measurement results in Majdanpek open ...Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić. "Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings" in Minerals, Basel : MDPI AG, Basel, Switzerland (2018). https://doi.org/10.3390/min8020070
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FrameNet Lexical Database: Presenting a Few Frames Within the Risk Domain
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 ...... be subjected to the same analysis as other LUs in the frame) (Fillmore et al. 2003, 297). 8. Having analyzed the definition of the verb to risk in ten general-use dictio- naries of English, Fillmore and Atkins concluded that even dictionaries of a similar size and purpose do not feature the basic meanings ...
... Kilgarriff, Adam, Vıt Baisa, Jan Bušta, Miloš Jakubıček, Vojtěch Kovář, Jan Michelfeit, Pavel Rychl, and Vıt Suchomel. 2014. “The Sketch Engine: ten years on.” Lexicography 1 (1): 7–36. Kilgarriff, Adam, Pavel Rychly, Pavel Smrz, and David Tugwell. 2004. “Itri- 04-08 the sketch engine.” Information ...Aleksandra Marković, Ranka Stanković, Natalija Tomić, Olivera Kitanović. "FrameNet Lexical Database: Presenting a Few Frames Within the Risk Domain" in Infotheca, Faculty of Philology, University of Belgrade (2021). https://doi.org/10.18485/infotheca.2021.21.1.1
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Simple 2D gravity–density inversion for the modeling of the basin basement: example from the Banat area, Serbia
We have developed a technique to calculate lateral density distribution of the sedimentary basin basement by combining linear gravity–density inversion and 2D forward modeling. The procedure requires gravity anomaly data, depth-to-basement data and density data for the sediments (density–depth distribution). Gravity efect of density variations in the basement was extracted from the total gravity anomaly by removing the joint efect of the sediments with vertical density variations and homogeneous basement of average density contrast (calculated by 2D modeling). Gravity ...Ivana Vasiljević, Snežana Ignjatović, Dragana Đurić. "Simple 2D gravity–density inversion for the modeling of the basin basement: example from the Banat area, Serbia" in Acta Geophysica, Springer (2019). https://doi.org/10.1007/s11600-019-00328-9
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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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Пример мерења издашности потопљених карстних извора на примеру бране XE Вишеград
Милан Петровић (2024)Главница предстојећег рада, састоји се од обраде и интерпретације података прикупљених током теренских хидрогеолошких истраживања у мају 2024. налокацији бране XE Вишеград.... koMaga y UOUJUyHOCUJU y 0yHKuuju) Tipwwiep Mepetoa M3nauiHOCTM nOTOny;beHWMX KapcTHWX M3BOpa Ha npMiepy 6paHe XE Baueerpan 3) TlwjeaoMerpu vcnoa Tena 6paHe (18 KkoMaga y UotuuiyHocuju y 0yHKuuju) Kako 6MCMO 6WMnM CMrypHM y noy3naHoOCT nonaTaKa OuMTGaHMX M3 OBMX OGjeKaTa, npuMcTynwno ce BMBeHA ...
... OBHOCy Ha nouerTHe onane 2-3 nyTa. {lerazbHa aHandM3a M4cTMuatba je npenBuMf}eHa Kao 3aBpuIHa d a3a y HoBMjMM McTpa»>\4BakbMMa rnpouypudBatba Mcroa Tena 6paHe. JacHMjuM yBMA y KBaHTMTSTMBHe riapaMeTpe MepeMa, ripMKa3aH je y Ta6enuM. Tipwwep Mepekoa M3nauiHOcTM noTOny;beHWX KapcTHMX M3BOpa Ha npMMepy ...Милан Петровић. Пример мерења издашности потопљених карстних извора на примеру бране XE Вишеград, 2024
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Coal homogenization stockyard sizing “Tamnava – Zapad” case study
... layers. STACKING METHODS AND NUMBER OF LAYERS PER PILE Generally speaking, there are two basic stacking methods, chevron and windrow, from which ten or so sub-methods have been derived by modifications thereof. When the required number of layers is small, the chevron method or a modification thereof ...Božo Kolonja, Dinko Knežević, Ranka Stanković, Dejan Stevanović, Detlef Trummer. "Coal homogenization stockyard sizing “Tamnava – Zapad” case study" in Proceedings of 13th International Symposium Continuous Surface Mining, ISCSM 2016, / (2016)
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Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations
The type of dip-slip faults can be assessed based on the analysis of vertical gravity gradients. Theoretically, just a simple comparation of the gradient extreme values can give us an answer whether the fault is normal or reverse (thrust). Practical application of this method is far more complicated and the results depend on a number of parameters, such as a complexity of geological setting, the quality of gravity data, dip angle and displacement of the fault, density contrast, etc. ...... HaoronnHa IFeojmoruja NEW INFORMATION ON THE AGE OF THE PEGMATITES OF CANISTE (PELAGONIAN METAMORPHIC COMPLEX), NORTH MACEDONIA Jvan Boev, Tena Ivanova Sijakova Sonja Lepitkova 12 19 27 32 35 42 49 Munepozioruja, Ilerpo.toruja u feoxeuja MEPMEPH3HPAHH BAPOBHHII OJI IEBATA CTPAHA ...Ivana Vasiljević, Snežana Ignjatović, Branislav Sretković. "Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations" in Vth Congress of the Geologists of the Republic of North Macedonia, Ohrid, Republic of North Macedonia, September 27-28, 2024, Macedonian Geological Society (2024)
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Threshold-induced correlations in the Random Field Ising Model
... D,(S; Vin, A) and D, (Tins Vow A) for size S and internal waiting time T;,,, as well as for the distributions D, jena Vip A) and Dy (Tins Vi > X) of Tena and Tini- Now, let us suppose that the elementary probability dp(S,i; bS.) of obtaining the scaled type §,i satisfies dp(8,i; BSA) = b" dp(is 2), (12) ...
... A(T; Vay A), Ds(b*~'S; b* Vy, BSA) = bY *1*D6(S3 Vays A); (13) Dry (Tiny! B5 b* Vi» BoA) = 6" Dep (Tints Vins )> (14) Dy, (Tonal; O° Vi» bSX) bY Dy (Tena Vins ¥)> Dy,,(TinilBs B*Vy BOX) = BY 'Dz, (Tins Vin )- (15) The foregoing general predictions can be tested in the case of any response signal for ...
... derived scaling forms proposed in the previous section. In our analysis we have also identified different contributions of waiting times (Tint Texts Tine Ten» Tia)» Which all follow the same scaling form Eq. (20). This form predicts that rescaled distributions of each type of waiting time, obtained for system ...Sanja Janićević, Dragutin Jovković, Lasse Laurson, Đorđe Spasojević. "Threshold-induced correlations in the Random Field Ising Model" in Scientific Reports, Springer Science and Business Media LLC (2018). https://doi.org/10.1038/s41598-018-20759-6
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Development of Open Educational Resources (OER) for Natural Language Processing
In this paper we present the development of an online course at the edX BAEKTEL platform named “Lexical Recognition in the Natural Language Processing (NLP)”. It is based on the course of the same name for PhD studies at the University of Belgrade, Faculty of Philology. There are not many courses in Computational Linguistics (CL) on OER platforms, and there is none in Serbian either for CL or NLP. We have developed this course in order to improve this ...... [2] Interest in NLP began in 1950 when Alan Turing published his paper entitled “Computing Machinery and intelligence,” [4] but in the past ten years saw a rapid and substantial growth in the commercialization of NLP. We believe that NLP is currently a critical technology for business, ...Cvetana Krstev, Biljana Lazić, Ranka Stanković, Giovanni Schiuma, Miladin Kotorčević. "Development of Open Educational Resources (OER) for Natural Language Processing" in The Sixth International Conference on e-Learning (eLearning-2015), September 2015, Belgrade, Serbia, Belgrade : Belgrade Metropolitan Univesity (2015)
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Towards translation of educational resources using GIZA++
... open-source licence, and competitive translation results. [2] 2. RELATED WORK Coursera, a leading MOOC provider [5], has announced a partnership with ten top organizations from eight countries to translate complete course lectures across multiple disciplines for students around the world, for free. There ...Ivan Obradović, Dalibor Vorkapić, Ranka Stanković, Nikola Vulović, Miladin Kotorčević. "Towards translation of educational resources using GIZA++" in The Seventh International Conference on e-Learning (eLearning-2016), September 2016, Belgrade : Metropolitan Univesity (2016)
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Overwiew of In-Pit Crushing & Conveying Technology in Open Pit Mines
The conditions under which contemporary surface mining operations is carried out obviously becoming increasingly complex. In such complex conditions, the optimization of haulage systems as the technological phase with the largest share in the total operating costs, is very important from the aspect of achieving profitability of the mining project. In a large number of cases, the application of traditional haulage systems with trucks (as the most dominant type of haulage in open pit mines) does not lead to ...Ali Nasirinezhad, Dejan Stevanović, Dragan Ignjatović, Petar Marković. "Overwiew of In-Pit Crushing & Conveying Technology in Open Pit Mines" in 8th International Conference MIining And Environmental Protection, Sokobanja, 22-25 September 2021, University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia (2021)
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Phase relations and physical indicators of municipal waste from old landfills in Serbia
Due to certain similarities of municipal waste and soil, usually for the determination of basic parameters of physical state, laboratory and field tests which are common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different values of indicators of municipal waste physical state can be found in the literature. The basic reasons should be found in different definitions and methods that researchers use ...municipal waste, moisture content, unit weight, specific gravity, grain size distribution, porosityGeneral Computer Science... and thus automatically calculates the density of solids, using a pre-defined dry sample mass. The pycnometer produces accurate results based on ten consecutive measurements. The «analyses · werc performed on five municipal waste samples of different composition. The obtained specific gravity ...Dragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić. "Phase relations and physical indicators of municipal waste from old landfills in Serbia" in Japanese Geotechnical Society Special Publication, The Japanese Geotechnical Society (2021). https://doi.org/10.3208/jgssp.v09.cpeg016
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Хазард од клизишта у Србији у 21. веку
Biljana Abolmasov (2019)... Yrephusarbe ytnuaja npoueca/nojasa Ha YrephvBatbe ontumanHnx ycnoBa UM MeTo”a UVJbEBY caHaunje ycnose Kopuuherba npoctopa Teometpnjcka 3D Kapaktepusauyja Tena KnMsMUTa, PervoHanHa cBojcTBa reonowke cpeAnHe nono>kaj HW o6nMK KnMsHe NoBpuIN penesanTua 3a pasBoj npoueca Mexanusam Kpetatea UW Bpcta noKpeHytor ...Biljana Abolmasov. "Хазард од клизишта у Србији у 21. веку" in Геохазард у Србији у 21. веку – знање је најбољи бедем против стихије, Српска академија наука и уметности (2019)