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Упит dcterms_subject_txt:expert systems

529 items

  • High-resolution sequence stratigraphy of carbonates - theory and examples

    Jelena Stefanović, Dejan Radivojević (2020)
    Циљ рада је да кроз теоријски аспект и примере примене представи секвенциону стратиграфију високе резолуције карбонатних седимената. У том смислу први део се односи на појам и значење високе резолуције у секвенционој стратиграфији. Од временских и просторних скала које одговарају сеизмичким профилима у последњих двадесет година метода је нашла примену на скалама које одговарају бушотинским подацима или изданцима. Као најпогоднији седименти за овај тип истраживања су се показали карбонати јер су осетљиви на еустатичке промене, а основе секвенционе стратиграфије ...
    изданак, системска група, јура-креда, карбонатна платформа, плитководна средина
    ... demonstrated through several up-to-date papers dealing with Jurassic-Cretaceous carbonates deposited on Tethyan platforms. Key words: outcrop, systems tract, Jurassic-Cretaceous, carbonate platform, shallow-water environment 1 Универзитет ...
    ... l units. AAPG (Am. Assoc. Pet. Geol.) Bull. 73, pp.125–142. 79 HANDFORD, C.R. and LOUCKS, R.G. 1993, Carbonate depositional sequences and systems tracts - responses of carbonate platforms to relative sealevel changes, in LOUCKS, R.G. and SARG, J.F., eds., Carbonate sequence stratigraphy – ...
    ... Association of Petroleum Geologists Memoir 57, p.3-41. HUNT, D. and TUCKER, M.E. 1992. Stranded parasequences and the forced regressive wedge systems tract: deposition during base-level fall. Sediment. Geol. 81, pp.1–9. JOHNSON, J.G. & MURPHY, M.A. 1984. Time-rock Model for Siluro-Devonian Continental ...

  • 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
    ... ecological standards are gradually improving in Serbia, relevant legal provisions are changing, and accompanying regulations harmonize and modern systems of municipal waste treatment prescribe. Serbia's EU accession includes the construction of a https://duboko.rs/ Proceedings SARDINIA2019. © 2019 ...
    ... reinforcement under foundations, stabilization of the terrain by the application of the so-called georaft system using "honeycomb" geosynthetic systems, and it is possible and the application of a deep compaction system, or a deep vibrational compression). Considering that subsequent geotechnical ...
    ... to the deformability of the substrate, the possibility of mechanical deformation in the landfill body or deformability and stability of the cover systems. Additional research has shown that the northern part of the site is a natural terrain that has not been used for waste disposal, while in the ...

  • An Approach to Management Decision Support: The Coal Mine Pljevlja Management Information System

    Božo Kolonja, Ranka Stanković, Filip Vuković, Ivan Obradović (2006)
    In this paper we describe the approach that has been used in the development of the Management Information System (MIS) in the Coal Mine Pljevlja in Montenegro. The methodology of this approach was based on new information technologies and management techniques which have already been successfully applied in other related fields. Its main goal was to introduce modern management techniques to mining, adapted to specific features of the mining industry, its operations and environment, thus enabling the tactical management ...
    ... production and waste management. Design and planning of these processes in the future needs to be closely integrated into more holistic mining systems, considering all controlling factors and impacts (technical, economic, environmental and social). It is crucial for the mining industry to develop ...
    ... reports from any location. The defined framework of electronic business (e-business) opens up the possibilities for the Mine to integrate its systems with IT solutions of third parties - business partners and clients, in a single business chain through Internet. Furthermore, e-business contributes ...
    ... on business data use this technology. Online analytical processing is a capability of management, decision support and executive information systems that enables managers and analysts to interactively examine and manipulate large amounts of detailed and consolidated data from many perspectives ...

  • Overview of the hydrogeological investigations of recently discovered world class deposits in Serbia

    Nebojša Atanacković, Vladimir Živanović, Veselin Dragišić, Sava Magazinović (2019)
    Europe industry has growing concerns on availability of the raw materials. To address this challenge, the European Commission has created a list of critical raw materials for the EU, launched EIT Raw Materials initiative, and continuously support research projects (like INTRAW, UNEXMIN etc.) with the aim of reducing the dependency and meeting growing demands. In the last 15 years Serbia is experiencing new bust in geological exploration of mineral deposits. Currently 167 exploration licenses are active, covering approximately 6000 ...
    Groundwater, Raw materials, Lithium, Mining, Field hydrogeology

  • Analiza sistema odvodnjavanja površinskog kopa Drmno od podzemnih voda sa severnim savršenim ekranom

    Tomislav Šubaranović, Dušan Polomčić, Vladimir Pavlović (2019)
    Izrada nesavršenog ekrana do drugog sloja uglja na površinskom kopu Drmno, pored zadržavanja postojećih standardnih metoda odvodnjavanja od podzemnih voda linijama bunara, predviđena je poslednje decenije u celokupnoj rudarskoj projektnoj dokumentaciji. Iz objektivnih i subjektivnih razloga njegova realizacija nije ostvarena do danas. U međuvremenu je, uz dodatna geološka istraživanja i promenu dinamike i parametara sistema površinske eksploatacije, došlo do određenih značajnih prostornih promena geoloških i rudarskih uslova u eksploatacionom polju. Ovo je omogućilo preliminarno inoviranje pristupa procesu i konceptu ...
    podzemne vode, odvodnjavanje, bunari, ekran, dinamika, troškovi

  • Industrial Waste Heat Potential for Meeting Heat Demand in the Republic of Serbia

    Dejan Ivezić, Marija Živković (2023)
    Finalna potrošnja energije u industrijskom sektoru čini skoro 25% finalne potrošnje energije u Republici Srbiji. Procenjuje se da je 50-70% potrošnje energije u industriji namenjeno proizvodnji toplotne energije u različitim industrijskim procesima. Deo proizvedene toplotne energije se nepovratno gubi kao energija odvedena u okolinu: prenosom toplote kroz zidove procesne opreme, dimnim gasovim, otpadnim vodama itd. Korišćenjem otpadne toplote povećava se efikasnost korišćenja primarne energije i smanjuje ukupna potreba za energijom. Otpadna toplota se može koristiti u samom industrijskom objektu ...
    otpadna toplota, industrija, toplotne potrebe

  • Multi-word Expressions for Abusive Speech Detection in Serbian

    Ranka Stanković, Jelena Mitrović, Danka Jokić, Cvetana Krstev (2020)
    Ovaj rad predstavlja istraživanja na usavršavanju i unapređenju srpske verzije rečnika Hurtlex, višejezičnog leksikona uvredljivih reči. Posebnu pažnju posvećujemo dodavanju izraza sa više reči (polileksemskih jedinica) koji se mogu smatrati uvredljivim, jer su takvi leksički zapisi veoma važni za postizanje dobrih rezultata u mnoštvu zadataka otkrivanja uvredljivog jezika. Srpski morfološki rečnici se koriste kao osnova za čišćenje podataka i stvaranje rečnika. Istaknuta je veza sa drugim leksičkim i semantičkim resursima na srpskom jeziku i predviđena je izgradnja sistema za ...
    uvredljiv govor, govor mržnje, leksički izvori, višejezični leksikon, izrazi sa više reči
    ... and MWE dictionary creation. A connection to other lexical and semantic resources in Serbian is outlined and building of abusive language detection systems based on that connection is foreseen. 1 Introduction This paper presents initial results in an on-going collaboration between University of Passau ...
    ... someone’s life in a negative way, deliberately making things difficult. The majority of current hate speech, offensive and abusive language detection systems in social media are based on lexicons or blacklists (Chen et al., 2012; Colla et al., 2020; Pamungkas et al., 2020). The advantage of this approach ...
    ... into a lexicon of 2898 abusive words. Several authors used the Wiegand lexicon as a blacklist in their hate speech and abusive language detection systems (Wiegand et al., 2018; Pedersen, 2020; Caselli et al., 2020). As noted by Wiegand et al. (2018), lexicons that contain different part of speech give ...

  • Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs

    John Nyame (2024)
    The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...
    Carbon Capture, Utilization and Storage
    ... best-performing membranes. Ideas to improve composite systems by alternate chemistries, re-engineering the material systems, and processing techniques will provide critical insight into the barriers to engineering sophisticated composite systems for future membrane-based CO2 separation [46]. Present ...
    ... assessment of geological, oceanic, and terrestrial storage. methods underscores the importance of site selection, safety protocols, and monitoring systems in ensuring the long-term viability of stored CO-». Throughout the analysis, the interplay of economic, environmental, and policy factors is considered ...
    ... methods have been utilized for the utilization of carbon dioxide in energy areas, including CO- flooding, liquid CO- fracturing, enhanced geothermal systems, and methane displacement from gas hydrates. Furthermore, the utilization of CO> in CCUS takes a circular economy approach, repurposing captured ...

  • Application of the Fuzzy Model in the Evaluation and Selection of Hydraulic Excavators on Open-Pit Lignite Mine

    Stevan Đenadić, Miloš Tanasijević, Vladimir Milisavljević, Dragan Ignjatović, Predrag Jovančić (2021)
    The production of lignite in large open-pit mines is mainly performed with continuously operating equipment, where bucket-wheel excavators, bucket-chain excavators, belt conveyors, and spreaders are the basic machines. Smaller machines, usually of discontinuous operating nature, are commonly categorized as auxiliary machines. This paper presents the research related to the analysis of auxiliary machine parameters with the case study for a hydraulic excavator. The purpose of the analysis was to develop a model of rating quality of service of the ...
    Fuzzy theory, hydraulic excavator, selection, quality of service, asset management

  • Hydraulic impact of pressure transients from water conveyance tunnel on the complex hydrogeological system: A case study HPP

    Igor Jemcov, Maja Todorović, Aleksandar Jemcov, Marina Ćuk Đurović (2024)
    Tunel pod pritiskom, Unutrašnji pijezometri, Tranzijenti pritiska, Karstna izdan, Pukotinska izdan, Hidraulički odziv
    ... hydropower plant (HPP) systems, traversing diverse rock masses, pose challenges for long-term operation. The study's main goal was to investigate how hydraulic transients originating from the headrace tunnel transfer through the concrete lining and manifest in surrounding aquifer systems. In this experimental ...

  • Formative evaluation of e-learning projects with the logical framework approach

    Roberto Linzalone, Giovani Schiuma, Ivan Obradović, Ranka Stanković (2015)
    ... to 6 years). Impact is the fundamental change, wanted or not wanted, intended or unintended, that occurs in organizations, communities, or systems as a result of a project (it reveals in the long term, within 7-10 years) [11]. A 'cause-effect' relation regulates the mechanism of creation of ...
    ... financed, but the impact of those investments remained largely unknown. E-learning is part of a new dynamic that characterizes educational systems in the 21st century, resulting from the merge of different disciplines, such as computer science, communication technology, and pedagogy, since ...
    ... Business Excellence, Vol. 19, Issue 3, pp. 90-99, 2015. [22] Dyehouse M., Bennett D., Harbor J., Childress A., Dark M., A comparison of linear and systems thinking approaches for program evaluation illustrated using the Indiana Interdisciplinary GK-12, Evaluation and Program Planning, Vol. 32 No ...

  • Утицај соларне активности на здравље човека

    Каролина Ђукић, Весна Цветков, Весна Дамњановић (2019)
    ... Conditions on Biological Systems: Some Results of Studies Conducted in the Azerbaijan National Academy of Sciences. Sun and Geosphere, 2(1), 48-52. [7] Babayev, E.S., Crosby, N.B. et al. (2012). Potential effects of solar and geomagnetic variability on terrestrial biological systems. Research Signpost ...
    ... human brain. Proc. Space Weather Workshop, 17-19. [4] Babayev, E.S. (2006). Space weather Influence on Technological, Biological and Ecological Systems: Some Major Results of Complex Investigations Conducted in Azerbaijan. Sun and Geosphere, 1(1), 17-22. [5] Babayev, E.S. (2008) Solar and Geomagnetic ...

  • Development of integrated fuzzy model for mine management optimization

    Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić (2023)
    fuzzy logika, višekriterijumsko odlučivanje, ocenjivanje eksperata
    ... exploration has rendered syn- onymous the inherent uncertainties, vagueness, and inaccuracies. As a result, subjective evaluation by engineers and expert experience have become increas- ingly important. Given that the natural language used by miners and geologists is most suited for relaying: knowledge ...
    ... to sustainable production in the future. A case study to which the model was applied is presented in the paper. Key words: mining; technology, expert evaluation, triangular fuzzy num- bers, multicriteria, decision making, Introduction. Mine management optimization, and thus the importance of ...
    ... underlying: and overlying, limestones. The underlying limestones are solid homo- geneous rocks, with numerous fractures and a number of fault zones. Expert experience suggested potential problems for certain types of mining. operations. Additionally, also based on experience and the physical and mechanical ...

  • 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

  • Facies analyses, biostratigraphy and radiometric dating of the Lower-Middle Miocene succession near Zajecar (Dacian basin, eastern Serbia)

    Ljupko Rundić, Nebojsa Vasić, Miodrag Banješević, Dejan Prelević, Violeta Gajić, Bojan Kostić, Jelena Stefanović (2020)
    Седиментна сукцесија између доњег и средњег миоцена и складан тј. дискордантан однос између језерско-континенталних наслага (нпр. DLS, SLS) и баденских морских седимената представља једну од занимљивих тема. У овом раду смо проучавали пет истражних бушотина (источна Србија) и анализирали главни фацијални образац, биостратиграфске карактеристике миоценске сукцесије и применили U-Pb радиометријско датирање вулканских туфова интерстратификованих у седиментној серији са слојевима угља (бушотина NRKR-17002). Добиjeна је конкордија старост од 16,9 ± 0,2 милиона година за сва анализирана зрнца циркона без наследних ...
    Доњи–средњи миоцен, језерске фације, морска трансгресија, U-Pb геохронологија, источна Србија.

  • Transboundary groundwater resources of Serbia - present status and future needs for sustainable management

    Veljko Marinović, Branislav Petrović, Zoran Stevanović (2021)
    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 ...
    međugranične izdani, Srbija, monitoring podzemnih voda, upravljanje podzemnim vodama

  • Determining seismic hazard in slowly deforming region: Can we gather enough information from karst caves?

    Ana Mladenović, Jelena Ćalić (2021)
    Methods to determine seismic hazard in any region vary depending on the regional seismicity, but can be roughly grouped into two main groups: one based on probabilistic methods that use data about known seismicity in the region, and another, which is based on data related to the faulting processes and determination of seismically active faults. Both groups of methods are relatively good for seismically active regions. However, in regions of low seismic activity and slow deformations, there is neither ...

  • Стратешко планирање функционалности подземних просторија моделом прогнозе деформација

    Лука Црногорац (2023)
    Релативно велике деформације подградне конструкције у подземним рудницима угља у Републици Србији представљају један од главних проблема за постизање планиране производње угља. Деформације подграде су директна последица статичких и динамичких оптерећења стенске масе и у многоме зависе и од времена трајања изложености подграде утицају подземног притиска. Код ниско механизованог радног процеса долази до повећаног излагања подземних просторија утицају подземног притиска услед дугог производног циклуса који је често пропраћен застојима у раду. Веома често подземне просторије се санирају и по ...
    подземне просторије, подграда, прогноза деформација, стратешко планирање

  • A Tel Platform Blending Academic And Entrepreneurial Knowledge

    Ivan Obradović, Ranka Stanković, Jelena Prodanović, Olivera Kitanović (2013)
    ... importance of terminological resources supporting expert terminology for specific domains is growing with the rapidly expanding availability of various texts on the web. Besides being indispensable in information an document retrieval systems, these resources have a strong educational impact ...
    ... following the OCW concept, on the one hand, and on the other, offers an opportunity for enterprises to present different forms of expert knowledge, such as case studies, expert presentations on specific topics, demonstrations of software implementation in practice and the like. In Section 2 we ...
    ... issue in the majority of engineering disciplines. More and more often knowledge offered by academic programs lags in some of its aspects after expert knowledge available in large enterprises. The integration of newly emerged knowledge generated by technological development into academic programs ...

  • An oilfield in Libya: A new model to enhance waste water disposal

    Dušan Danilović, Vesna Karović Maričić, Nori Elhaddad, Branko Leković (2016)
    нафта, лежишне воде, припрема