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Упит dcterms_subject_txt:Statistical and Nonlinear Physics

2451 items

  • The Importance of Geotechnical Investigations for the Construction of Transfer Station „Prelići“ on Landfill in Cacak – Serbia

    Dragoslav Rakić, Irena Basarić, Jovana Janković, Tina Đurić (2019)
    For the purpose of the facilities construction within the transfer station „Prelici“ in Cacak, specific geotechnical investigations were carried out based on which the technological project with the facilities schedule was developed. Significant deviations in relation to the presented results were determined during earthworks, so the additional geotechnical investigation works were carried out. Since the new investigation works have determined a different cross section of the terrain, it was proposed to move the planned facilities which led to the ...
    landfill, geotechnical investigations, transfer station

  • Projecting short to medium-term effects of carbon emissions trading on Serbia's GDP

    Boban Pavlović, Nikola Trtica (2024)
    This paper presents an approach to assess the short to medium-term effects of the Emissions Trading System (ETS), an economic and climate policy instrument aimed at reducing greenhouse gas emissions, on GDP from the expenditure side. The analysis focuses on Serbia’s electricity sector, which relies heavily on lignite-based pro duction dominated by state-owned enterprises. The obtained projections suggest that in the short term, the introduction of an ETS may lead to slower GDP growth compared to official forecasts. However, ...
    ETS, BDP - rashodni pristup, cene električne energije
    ... 2013—-2022 (in constant Ć 2015) (Statistical Office of the Republic of Serbia, 2024a). B. Pavlović and N. Trtica 2023 2024 2025 2026 2027 2028 2029 2030 -a-Real GDP Fig. 2. Real GDP projections 2023—2030 (in constant ć 2015) (National Bank of Serbia, 2023). and climate policies. This policy ...
    ... Policy 91 (2024) 101855 Table 1 Total electricity production in 2022 (Statistical Office of the Republic of Serbia, 2023). Energy source Produced electricity (GWh) Share (%) Coal (lignite) 23459.7 66.06% Natural gas and fuel oil 1656.7 4.67% Hydro 9274.4 26.12% Wind 949.4 2.67% Solar 15 ...
    ... | 2014 | 2015 | 2016 2017 | 2018 2019 2020 2021 | 2022 MCoal #Naturalgas and fueloil m Hydro mWind wSolar mBiogas Fig. 3. The structure of electricity production by energy sources in Serbia (%) (2013—2022) (Statistical Office of the Republic of Serbia, 2023). Recommendation of the Ministerial ...

  • Evaluating the deep learning software tools for large-scale enterprises using a novel TODIFFA-MCDM framework

    Zoran Gligorić, Ömer Faruk Görçün, Miloš Gligorić, Dragan Pamucar, Vladimir Simić, Hande Küçükönder (2024)
    duboko učenje, industrije velikih razmera, MAXC (maksimum kriterijuma), TODIFFA (totalni diferencijal alternative), izbor softvera za dubinsko učenje

  • Integrative GHG Assessment in Oil and Gas Industry

    Aleksandar Mirković, Marija Živković, Stevan Đenadić, Darja Lubarda, Chinedu Anyanwa (2023)
    Reducing greenhouse gas emissions is one of the main targets of national strategies in European countries. As a main contributor to emissions, the energy sector is recognized as the most promising to apply measures and actions aimed to decrease GHG emissions. The Oil and Gas industry as a significant contributor to global greenhouse gas emissions is facing a growing need for estimating, mitigating, and reducing the impact of their operations on the atmosphere to stay competitive in a newly ...
    energetska tranzicija, gasovi staklene baste, industrija, nafta i gas
    ... sources and provide a breakdown by activity and by consequently emitted greenhouse gas for a typical onshore oil and gas production and processing facility, including fugitivc emission and flaring. The calculation is based on data specifically derived to represent a typical upstream oil and gas company ...
    ... content and hcating value of the fuel and is not influenced by combustion conditions. On the other hand, emission factors for non-CO» gases, such as methane and nitrous oxide, depend on technology and operating. conditions and vary significantly between different combustion sources and over time ...
    ... generation, and hcat production in cecntralized supply systems) and cnergy consumption at end users. However, in mitigating climate change all sources of emission nced to be assessed and identified, which brings to attention thc production and processing of fucls, including the oil and gas industry ...

  • Geochemical evaluation of dolostone deposits in Montenegro: Implications for potential industrial applications

    Darko Bozovic, Vladimir Simic, Dragan Radulovic, Slobodan Radusinovic, Vesna Matovic, Anja Terzic (2024)
    This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability, and low costs. These subsystems are usually part of the thermal power plant’s coal supply system and ensure stable fuel supply. The model integrates various independent partial ...
    примарне сировине, минералогија, физичко-механичка својства, технолошка својства, наука о материјалима

  • Extreme Rainfall Event and Its Aftermath Analysis—IPL 210 Project Progress Report

    Biljana Abolmasov, Mileva Samardžić Petrović, Ranka Stanković, Miloš Marjanović, Jelka Krušić, Uroš Đurić (2021)
    Landslides, Extreme precipitation, Data analysis, IPL project report
    ... Eng Geol 232:147–159 Prohaska S, Đukić D, Bartoš Divac V, Božović N (2014) Statistical significance of the rainfall intensity that caused the May 2014 flood in Serbia. Water Res Manag 4(3):3–10 Extreme Rainfall Event and Its Aftermath Analysis … 273 View publication statsView publication stats ...
    ... re- lating the landslide mechanisms and magnitudes versus the trigger and its aftermath, (4) locating spatial patterns and relationships between landslides and geological and envi- ronmental controls, (5) proposing an overview susceptibility map of the event and (6) landslides numerical modeling on ...
    ... such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher ...

  • Развој геолошког терминолошког речника ГеолИССТерм

    Ranka Stanković, Branislav Trivić, Olivera Kitanović, Branislav Blagojević, Velizar Nikolić (2011)

  • OntoLex Publication Made Easy: A Dataset of Verbal Aspectual Pairs for Bosnian, Croatian and Serbian

    Ranka Stanković, Maxim Ionov, Medina Bajtarević, Lorena Ninčević (2024)
    Ovaj rad predstavlja novi jezički resurs za pretraživanje i istraživanje verbalnih aspektnih parova u BCS (bosanskom, hrvatskom i srpskom), kreiran korišćenjem principa Lingvističkih Povezanih Otvorenih Podataka (LLOD). Pošto ne postoji resurs koji bi pomogao učenicima bosanskog, hrvatskog i srpskog kao stranih jezika da prepoznaju aspekt glagola ili njegove parove, kreirali smo novi resurs koji će korisnicima pružiti informacije o aspektu, kao i link ka aspektnim parovima glagola. Ovaj resurs takođe sadrži spoljne linkove ka monolingvalnim rečnicima, Wordnetu i BabelNetu. ...
    aspekt glagola, lingvistički otvoreni podaci, BCS

  • Development and Evaluation of Three Named Entity Recognition Systems for Serbian - The Case of Personal Names

    Branislava Šandrih, Cvetana Krstev, Ranka Stanković (2019)
    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 ...
    NER, Named Entity Recognition Systems, Serbian, Personal Names

  • History of meteorite donations to the Collection of Minerals and Rocks of the University of Belgrade, Faculty of Mining and Geology (Serbia)

    Alena Zdravković, Maja Milošević, Kristina Šarić, Ivana Jelić, Ana Černok (2021)

  • Topic Modeling of the SrpELTeC Corpus: A Comparison of NMF, LDA, and BERTopic

    Teodora Mihajlov, Milica Ikonić Nešić, Ranka Stanković, Olivera Kitanović (2024)
    Modeliranje tema je efikasan način da se dobije uvid u velike količine podataka. Neki od najčešće korišćenih metoda za modeliranje tema su Latentna Dirihleova alokacija (LDA) i faktorizacija nenegativne matrice (NMF). Međutim, sa porastom modela samopažnje i unapred obučenih jezičkih modela, pojavili su se novi načini za ekstrakcju tema. BERTopic predstavlja novi pristup modeliranju tema. U ovom radu smo uporedili performanse LDA, NMF i BERTopic na književnim tekstovima na srpskom, merenjem koherentnosti tema i raznovrsnosti tema, kao i kvalitativnom ...
    jezički modeli, LDA, modeliranje tema, BERT, BERTopic

  • Design of a sucker rod pumping system

    Ana Ponoćko (2024)
    For a long time in the history of oil production, sucker rod pumps have been the first and in many cases the only choice when it comes to mechanical extraction methods. Proper selection of each individual element of the system enables optimization, which entails benefits in the form of increased efficiency and reduced costs. The first part of the paper presents the underground and surface equipment of the rod pump and describes the operation of the entire system. The ...
    sucker rod pump, fluid production, mechanical extraction methods,, Prosper, QROD, RODSTAR
    ... of increased efficiency and reduced costs. The first part of the paper presents the underground and surface equipment of the rod pump and describes the operation of the entire system. The second part involves an analysis and calculations using the "RODSTAR", "QRod" and "Prosper" software, which ...
    ... including: maximum stress, the range of maximum and minimum stress, and the number of strokes per minute. All these factors affect material fatigue and the potential for rod failure,. In some cases, to reduce loads and investments in the lifting assembly and to increase the depth of the pump installation ...
    ... required power and capacity, and ensuring optimal system efficiency. It is also important to account for the specific characteristics ofthe reservoir and the challenges associated with equipment and system maintenance. Proper design can maximize the performance of sucker rod pump systems and reduce operational ...

  • SASA Dictionary as the Gold Standard for Good Dictionary Examples for Serbian

    Ranka Stanković, Branislava Šandrih, Rada Stijović, Cvetana Krstev, Duško Vitas, Aleksandra Marković (2019)
    У овом раду представљамо модел за избор добрих примера за речник српског језика и развој иницијалних компоненти модела. Метода која се користи заснива се на детаљној анализи различитих лексичких и синтактичких карактеристика у корпусу састављених од примера из пет дигитализованих свезака речника САНУ. Почетни скуп функција био је инспирисан сличним приступом и за друге језике. Дистрибуција карактеристика примера из овог корпуса упоређује се са карактеристиком дистрибуције узорака реченица ексцерпираних из корпуса који садрже различите текстове. Анализа је показала да ...
    Српски, добри примери из речника, аутоматизација израде речника, издвајање својстава, Машинско учење

  • In silico and in vitro biological evaluation: distribution of Ru(III) Schiff base complexes through the pancreatic 3D model and immersed blood vessel network

    Milica Međedović, Dušan Ćoćić, Aleksandar Mijatović, Vladimir Simić, Žiko Milanović, Marijana Kosanić, Nevena Petrović, Snežana Sretenović, Ana Rilak Simović (2024)
    Ru kompleksi, HAS, Bcl-2, antimikrobni
    ... Complexes 2 and 5 showed the highest cytotoxic effects toward human, A549 and murine LLC1 lung cancer cells. We described that these complexes altered the ratio of anti- and pro-apoptotic molecules and induced apoptosis of A549 cells. Additionally, 2 and 5 reduced the percentage of McI1 and Bcl2 expressing ...
    ... including biological, clinical, analytical and industrial in addition to their important roles in catalysis and organic synthesis [4-8]. These compounds have been used as drugs and possess a variety of antimicrobial activities against bacteria and fungi and anticancer activities against certain types ...
    ... the University of Kragujevac, and BiolRC (Bioengineering Research and Development Center, Kragujevac, Serbia). Regarding the graphical repre- sentation, the CAD Field & Solid is the University of Kragujevac and BiolRC's in-house pre- and post-processing 3D modeling and visualization tool. The main ...

  • Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia

    Bojan Kostić, Danica Srećković-Batoćanin, Petyo Filipov, Pavle Tančić, Kristijan Sokol (2021)
    This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern ...
    grandite, garnets, skarn, Rudnik

  • Approach to operational mine planning: Case study Tamnava West

    Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković (2014)

  • Phase relations and physical indicators of municipal waste from old landfills in Serbia

    Dragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić (2021)
    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
    ... consistency, biodegradability etc. (Vosniakos and Patronic, 2009). Therefore, data on the composition, shape and size of n i Ra5 o — - particles in the landfill can be of great use in defining m:;';]on and selection || > M @523331 the phase composition and physical indicators of iušLte008| Y Horanalysis| ...
    ... G) m where: mx, mya — initial dry mass and mass of drained water Žuo, }a — Initial dry unit weight and dry unit weight in degradation stage no, n — initial porosity and porosity in a certain stage of degradation Wo, W — initial moisture and moisture content in a certain stage of degradation ...
    ... al Geotechnics Phase relations and physical indicators of municipal waste from old landfills in Serbia iii) ) Dragoslav Rakic ", Irena BasaricIkodinovic", Jovana Jankovic ' and Tina Djuric ” i) Associate Professor, University of Belgrade, Faculty of Mining and Geology, Djusina 7, Belgrade11000 ...

  • Mesozoic carbonate rocks in Serbia used as dimension stone

    Vesna Matović, Tijana Vojnović Ćalić (2016)
    The building industry in Serbia uses, to a great extent, imported natural stone for architectural purposes. The significance of local deposits, particularly limestones, is not adequately perceived despite the country’s abundance of these valuable resources. Therefore, this study focuses on Serbia’s Mesozoic carbonate rocks, specifically on the deposits of four selected quarries: Klisura, Skrzut, Struganik, and Tisnica. The quality and prospects of the application of these limestones has not yet been the subject of a detailed, comprehensive investigation. Therefore, ...
    Ukrasni kamen, Mezozoik, Krečnjak, Srbija, Petrografija, Fizičko-mehanička svojstva
    ... limestone are probably the consequence of the small statistical sample. The Klisura and Skrzut limestones are very compact rocks and they are characterised by consistency values of total porosity (mean is less than 1 %; Fig. 4b). Although Tisnica and Struganik limestones show a wide range of porosity ...
    ... Standardization EN 14157:2008). To evaluate the physical and mechanical properties of the investigated carbonate rocks, basic descriptive statistics were performed using the StatSoft computer software. Statistical parameters (mean, minimum, and maximum value) are presented using box-Whisker diagrams ...
    ... tests (Table 1) and basic statistical analyses (Fig. 4), all of the limestone samples exhibit relatively uniform values of mechanical properties, but some heterogeneity in terms of physical properties. Because of the low amount of void space, the bulk density varies slightly and is in range of ...

  • A contribution to the understanding of hydrochemical properties of thermomineral water on the L’dži locality (eastern part of North Macedonia)

    Hristina Petrova, Katarzyna Wątor, Piotr Rusiniak, Boris Vakanjac, Vesna Ristić Vakanjac, Ewa Kmiecik (2023)
    Regarding the aspect of mineral, thermo-mineral, and thermal waters, on the territory of the Republic of North Macedonia, there are 65 registered locations, of which 8 are categorized as spas. This includes the Kežovica spa, also known as the Štipska spa. In the vicinity of Kežovica Spa is the thermo-mineral L’Dži spring with mineralization around 1.3 g/L and the water temperature at the time of sampling was 50.1 °C. Spring L’Dži is generated by a fault structure and is ...
    termomineralne vode, hemizam voda, hidrohemijske karakteristike, lokalitet L’dži, Republika Severna Makedonija

  • The state and perspective of the natural gas sector in Serbia

    Dejan Ivezić, Marija Živković, Dušan Danilović, Aleksandar Madžarević, Miloš Tanasijević (2016)
    The strategy of long-term energy development of Serbia identifies an increase of share of natural gas in final energy consumption as one of the main aims. Serbia has signed a strategic agreement with the Russian Federation on cooperation in the oil and gas sector, within which the project South Stream pipeline is planned to be realized. In addition, the Republic of Serbia has signed the Treaty that establishes the Energy Community and accepted the obligation to implement the Energy ...
    Consumption, natural gas, scenarios of development
    ... 8.6% and reached more than 2.5 billion m3 in 2004 (Statistical office of the Republic of Serbia, 2012). Similar consumption remained in the period 2005–2008. The economic crisis, increase of natural gas price, problems related to security of gas supply due to the Russian–Ukrainian dispute, and very low ...
    ... than 1.8 billion m3). In 2010 and 2011 consumption of natural gas almost returned to the 2008 level (Statistical office of the Republic of Serbia, 2012). Change of total consumption was followed by change of consumption structure. Final consumption in industry (energy and nonenergy) represented more than ...
    ... of the analyzed period, to less than 5%). At the same time the consumption in the households sector and district heating plants increased from 20% in 1990 to over 30% in the period 2001–2010 (Statistical office of the Republic of Serbia, 2012), (Djajić, 2011). Consumption in these sectors characterizes ...