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Упит dcterms_subject_txt:ratio of modified secondary and primary compression index

2759 items

  • Fuzzy optimization in hydrodynamic analysis of groundwater control systems: Case study of the pumping station “Bezdan 1”, Serbia

    Dragoljub Bajić, Dušan Polomčić (2014)
    A groundwater control system was designed to lower the water table and allow the pumping sta-tion “Bezdan 1” to be built. Based on a hydrodynamic analysis that suggested three alternative solutions, mul-ticriteria optimization was applied to select the best alternative. The fuzzy analytic hierarchy process methodwas used, based on triangular fuzzy numbers. An assessment of the various factors that influenced the selec-tion of the best alternative, as well as fuzzy optimization calculations, yielded the “weights” of the alternativesand the ...
    groundwater lowering, groundwater management scenario, fuzzy analytic hierarchy process,expert knowledge, triangular fuzzy numbers, linguistic variables
    ... decembar 2014 BELGRADE, December 2014 1 University of Belgrade, Faculty of Mining and Geology, Department of Hydrogeology, Djusina 7, 11000 Belgrade, Serbia, e-mail: osljane@orion.rs 2 University of Belgrade, Faculty of Mining and Geology, Department of Hydrogeology, Djusina 7, 11000 Belgrade, Serbia, ...
    ... groundwater intrusion and provide for unhin- dered construction of the “Bezdan 1” PS. Figure 2 shows the lowering of the water table of the analyzed alternatives. For each alternative, the characteristics of the groundwater control system: the number of wells and their spatial distribution, and the time need- ...
    ... the use of the FAHP approach described Fuzzy optimization in hydrodynamic analysis of groundwater control systems: Case study of the pumping station 105 Fig. 1. Study area and “Bezdan 1” pumping station. Fig. 2. Lowering of the water table, alternatives 1, 2 and 3, as a result of control system operation ...

  • Rift sequence stratigraphy and its contribution to source rock understanding – Serbian part of Pannonian Basin

    Filip Anđelković, Dejan Radivojević (2018)
    ... 5 Ma) (Matenco and Radivojević, 2012). The most prolific source rocks in Serbian part of Pannonian Basin are marls and limestones of the Sarmatian and Pannonian (Kostić, 2012). Besides this sequence, source rocks are also to a lesser extent rep- resented by shales of the Badenian and Pre-Badenian Tertiary ...
    ... September 10–13, 2018, Abstracts Rift sequence stratigraphy and its contribution to source rock understanding – Serbian part of Pannonian Basin Filip Anđelković, Dejan Radivojević University of Belgrade, Faculty of Mining and Geology, Department of Regional Geology, Belgrade, Serbia; e-mails: filip.a ...
    ... The recent studies of south-eastern part of Pannonian Basin showed that rifting took place along asymmetric simple shear exten- sional mechanism (Matenco and Radivojević, 2012). The analysis of syn-kinematic reflectors demonstrates that normal faulting migrates in time and space and took place on a wide ...

  • Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders

    Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica (2023)
    ... I), University of Belgrade Institute of Physics, University of Belgrade Center of Excellence for the Synthesis, Processing and Characterization of Materials for use in Extreme Conditions "CEXTREME LAB” - Institute of Nuclear Sciences "Vinča”, University of Belgrade Faculty of Mechanical Engineering ...
    ... Institute of Nuclear Sciences *Vinča”, University of Belgrade Faculty of Mechanical Engineering, University of Belgrade Center of Excellence for Green Technologies, Institute for Multidisciplinary Research, University of Belgrade Faculty of Technology and Metallurgy, University of Belgrade ...
    ... University of Belgrade Center of Excellence for the Synthesis, Processing and Characterization of Materials for use in Extreme Conditions “ĆCEXTREME LAB” – Institute of Nuclear Sciences “Vinča”, University of Belgrade Faculty of Mechanical Engineering, University of Belgrade Center of Excellence ...

  • Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites

    Marija Šuljagić, Aleksandar Kremenović, Ivan Petronijević, Adis Džunuzović, Miljana Mirković, Vladimir Pavlović, Ljubica Anđelković (2023)
    To investigate the effect of synthesis procedure and sintering temperature on the functional properties of perovskite/spinel ceramics, BaTiO3/CoFe2O4 composites were prepared by thermal decomposition, coprecipitation, and microemulsion method, and sintered at 1150°C and 1300°C. The phase composition and morphology of as-prepared powders as well as sintered ceramics were thoroughly examined by X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS). The dielectric and ferroelectric measurements were performed in detail. Generally, the ...
    Perovskite/spinel ceramics, Multiferroic, Sintering, Influence of synthesis method

  • From post-disaster landslides inventory to open landslides data

    Biljana Abolmasov, Miloš Marjanović, Uroš Đurić, Jelka Krušić (2021)

  • 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
    ... interpretation  of well‐log curves and the analysis of geological data from nine wells: KM‐117, 17, 1, 2, 3, 4, 5, 6 and 7  (Figure 1а and 1b). The principles of sequence stratigraphy have been applied in the analysis of geophy‐ sical  and  geological  data, while  the  correlation  of  hydrocarbon  ...
    ... s  of the shape and characteristics of curves of gamma ray  (GR) and specific resistivity  (RT)  logs.   Funnel  shape of  the GR  log points  to  the  reduction  in  the basin water  level and  the  increase  in  the  level of  depositional energy, which leads to the reduction in the content of sha ...
    ...  designation and correlation  of A, D, E, F and G reservoirs as individual sandstone layers in the “Mokrin” field.  Inconsistencies in the  selection  of  markers,  designation  and  correlation  of  hydrocarbon  reservoirs  have  led  to  incorrect  assessments of oil and gas reserves and confusion i ...

  • Geologic Information System of Serbia

    Branislav Blagojević, Branislav Trivić, Ranka Stanković, Nenad Banjac, Olivera Kitanović (2011)
    Geologic information system of Serbia (GeolISS) represents repository for digital archiving, query, retrieving, analysis and geologic data visualization. The GeolISS is implemented through ESRI ArcGIS technology, and is designed to operate as a personal geodatabase (MS Jet 4.0 Engine) and SDE enterprise geodatabase in MS SQL Server. The objective of GeolISS implementation is integration of existing geologic archives, data from published maps at different scales, newly acquired field data, as well as Web publishing of geologic information. Physical implementation ...
    Geologic information system, Conceptual model, Logical model, Implementation, Geodatabase
    ... publishing of geologic information. Physical implementation of GeolISS has been guided with conceptual and logical model in those specified the basic kinds of geologic entities of interest and how they are described. The attempt has been influenced by NADM-C1 implementation from USGS and CGS, by ...
    ... Faculty of Mining and Geology, Đušina 7, 11000 Belgrade, Serbia, e-mail: btrivic@rgf.bg.ac.rs 3 Faculty of Mining and Geology, Đušina 7, 11000 Belgrade, Serbia, e-mail: ranka@rgf.bg.ac.rs 4 Faculty of Mining and Geology, Đušina 7, 11000 Belgrade, Serbia, e-mail: olja@rgf.bg.ac.rs 5 Faculty of Mining ...
    ... rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs GEOLOGIC INFORMATION SYSTEM OF SERBIA BRANISLAV BLAGOJEVIĆ1 ...

  • Cytotoxic activity of tetradentate Schiff Base Copper(II) complexes

    Nevenka Gligorijević, Aleksandar Mijatović, Sandra Aranđelović, Rada Baošić (2021)
    Istraživanje kompleksa bakra kao potencijalnih antikancerogenih agenasa nudi ohrabrujuće perspektive u odnosu na komplekse platine (II) računajući na smanjenu toksičnost, novi mehanizam delovanja, različit spektar aktivnosti i perspektivu neunakrsne rezistencije. Kompleksi Šifovih baza bakra(II) koji sadrže tetradentatne ligande acac2en tipa (acac2en (1); tfacac2en (3), acactfacacen (4), acacphacacen (6)) pokazali su važnu antioksidativnu aktivnost, visok potencijal za interakciju sa HSA i DNK, u prethodnim studijama. Zbog toga je bilo interesantno ispitati i uporediti potencijal antikancerogene aktivnosti in vitro, u odnosu ...
    Bakar(II) kompleksi, citotoksičnost, ćelijski ciklus

  • Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders

    Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić (2023)
    ... Department of Physics, Faculty of Science, University of Zagreb, Bijenička c. 32, HR-10000 Zagreb, Croatia JUniversity of Belgrade, Faculty of Pharmacy, Department of Bromatology, Belgrade, Serbia “Department of Mineralogy, Crystallography, Petrology and Geochemistry, Faculty of Mining and Geology ...
    ... I), University of Belgrade Institute of Physics, University of Belgrade Center of Excellence for the Synthesis, Processing and Characterization of Materials for use in Extreme Conditions "CEXTREME LAB” - Institute of Nuclear Sciences "Vinča”, University of Belgrade Faculty of Mechanical Engineering ...
    ... Institute of Nuclear Sciences *Vinča”, University of Belgrade Faculty of Mechanical Engineering, University of Belgrade Center of Excellence for Green Technologies, Institute for Multidisciplinary Research, University of Belgrade Faculty of Technology and Metallurgy, University of Belgrade ...

  • Adaptive neuro-fuzzy prediction of operation of the bucket wheel drive based on wear of cutting elements

    Filip Miletić, Predrag D. Jovančić, Milos Milovančević, Dragan Ignjatović (2020)
    The capacity of the rotor excavator depends largely on the operation of the subsystem for digging. There is a great contribution to the correct and sharp teeth when the capacity is the highest. In the function of time, the teeth become clogged due to abrasive wear, or changes in their geometric shape. To analyze the bucket wheel drive in depend on wear of the cutting elements in this study adaptive neuro fuzzy inference system (ANFIS) approach was implemented. ANFIS ...
    Pogon rotornog točka, habanje, rezni elementi, ANFIS

  • A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia

    Boban Pavlović, Dejan Ivezić, Marija Živković (2021)
    When assessing the potential of renewable energy alternatives for electricity generation, it is necessary to implement a multi-perspective approach that includes economic, technical, environmental, and socio-political criteria. For the evaluation of criteria and alternatives, the Fuzzy Analytical Hierarchy Process (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a fuzzy numerical value scale for the assessment of expert judgments and energy indicators provides a more sensitive ...
    Proizvodnja električne energije, Obnovljivi izvori energije, Višekriterijumsko odlučivanje, Srbija
    ... Greek island, with respect to the economic, technical, environmental, and social aspects. Using the case of Lithuania’s electricity sector and multiple criteria mathematical methods AHP (Analytic Hierarchy Process) and ARAS (Additive Ratio Assessment method) Štreimikiene et al. (2016) evaluated electricity ...
    ... Office of the Republic of Serbia), 2018. Energy balances, 2016. Belgrade, available at: https://publikacije.stat.gov.rs/G2018/Pdf/G20185632. pdf. MME, Ministry of Mining and Energy of the Republic of Serbia, 2018. Energy balances of the Republic of Serbia for 2019. In: Official gazette of the republic ...
    ... SORS (Statistical Office of the Republic of Serbia), 2020. Energy balances, 2018. Belgrade, available at: https://publikacije.stat.gov.rs/G2020/Pdf/G20205657. pdf. MME (Ministry of Mining and Energy of the Republic of Serbia), 2020. Registry of privileged power producers and temporary privileged producers ...

  • Post Early Miocenevertical-axis clockwise rotation in the West Vardar Zone of Serbia

    Vesna Lesić, Emo Marton, Vesna Cvetkov, Dragana Jovanović (2018)
    ... locality of flysch and seventeen sites of Oligocene-Earliest Miocene igneous rocks of different composition. In the south, ın the wider Kopaonik Mts. Area we sampled cight sites of dacitoandesites andfifteen localities of granodiorites both of Oligocene age. Samples were drilled and oriented in situ both ...
    ... Faculty ofMining and Geology, Department ofGeophysics, Djusina 7, 11000 Belgrade, Serbia The Vardar-Tethyan mega-suture lies between the Eurasian and Gondwana margins. It is composed of remnants of obducted ophiolites and ophiolite mćlange, distal parts of adjacent continental margins and post-obduction ...
    ... magnetic and sun compasses. In the laboratory samples were cut into standard size specimens, then subjected to standard paleomagnetic measurements which included the measurement of the natural remanent magnetization, followed by the measurement of anisotropy of magnetic susceptibility and stepwise ...

  • Crystal structure of K3EuSi2O7

    Sabina Kovač, Predrag Dabić, Aleksandar Kremenović (2021)
    alkalni silikati elemenata retkih zemalja, kristalna struktura, sinteza metodom fluksa, rendgenska difrakcija na monokristalu
    ... Synthesis and crystallization The following chemicals were used in the high-temperature flux synthesis experiment: Eu2O3 (Sigma-Aldrich, 99.99 %), SiO2 (Merck, p.a.) and KF (Centrohem, 99 %). A total of 0.055 g of a mixture of Eu2O3 and SiO2 in a molar ratio of 1:4 was added to 1 g of KF. The ...
    ... support from the Ministry of Education, Science and Technological Development of the Republic of Serbia (Grant No. III45007 and III45015); Ministry of Education, Science and Technological Development of the Republic of Serbia & Austria Federal Ministry of Education, Science and Research (project No ...
    ... Department of Mineralogy, Crystallography, Petrology and Geochemistry, University of Belgrade, Faculty of Mining and Geology and the Laboratory of X-ray diffraction at the Department of Physics, University of Novi Sad, Faculty of Sciences. OnLin e Fir st CRYSTAL STRUCTURE OF K3EuSi2O7 9 ...

  • Using English Baits to Catch Serbian Multi-Word Terminology

    Cvetana Krstev, Branislava Šandrih, Ranka Stanković (2018)
    In this paper we present the first results in bilingual terminology extraction. The hypothesis of our approach is that if for a source language domain terminology exists as well as a domain aligned corpus for a source and a target language, then it is possible to extract the terminology for a target language. Our approach relies on several resources and tools: aligned domain texts, domain terminology for a source language, a terminology extractor for a target language, and a ...
    aligned texts, word alignment, terminology extraction, electronic dictionaries, morphological inflection
    ... terms (*_LEN), 6) ratio of diacritics count and length (*_DIACRITICS_LEN_RATIO) and 7) ra- tio of lengths of two different terms (*_LEN_RATIO). After eliminating high correlating or constant features, the final dataset contained 28 features.16 The performance of the classifier was evaluated in the 5-fold ...
    ... 4.2. Dictionary of Library and Information Science The development of the Dictionary of Librarianship: English-Serbian and Serbian-English (in this text referred to as ‘Dictionary’) (Ljiljana Kovačević, 2014) has started in 2001 at the National Library of Serbia, with the aim of presenting the l ...
    ... total number of words in Serbian and English chunks, ex- tracted term and English Dictionary term (*_WC), 2) ex- tracted term frequency (*_FREQ), 3) count of chunks in text (*_COUNT), 4) count of present diacritics in Serbian terms (*_DIACRITICS), 5) number of characters in En- glish and Serbian terms ...

  • Strain partitioning around an indenter during oroclinal bending: kinematics of the Circum-Moesian fault system of the Carpatho-Balkanides

    Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga (2021)
    ... uu.nl) 2University of Belgrade, Faculty of Mining and Geology, Department of Regional Geology, Belgrade, Serbia The Carpatho-Balkanides of south-eastern Europe is a double 180° curved orogenic system. It iscomprised of a foreland-convex orocline, situated in the north and east and a backarc-convexorocline ...
    ... situated in the south and west. The southern orocline of the Carpatho-Balkanides orogenformed during the Cretaceous closure of the Alpine Tethys Ocean and collision of the Dacia mega-unit with the Moesian Platform. Following the main orogen-building processes, the Carpathianssubduction and Miocene slab retreat ...
    ... basins and thrusting of the western Balkansunits over the Moesian Platform. We have performed a field structural study in order tounderstand the mechanisms of deformation transfer and strain partitioning around the Moesianindenter during oroclinal bending by focusing on kinematics and geometry of large-scale ...

  • Palaeoflora of Kamenica (Pranjani Basin, western Serbia)

    Zorica Lazarević, Ljubica Milovanović, Jelena Milivojević, Ivana Vasiljević (2019)
    Palaeofloras of the Paleogene in Serbia are relatively rare, especially in comparison with floras from Neogene sediments. Most Paleogene phytoas sociations from the territory of Serbia existed in a dry and warm climate. The youngest Paleogene phytoassociation originates from the Pranjani Basin (Western Serbia), locality Kamenica. The age of this palaeoflora is determined as Late Oligocene. This fossil plant assemblage is different from other Paleo gene phytoassociations.The palaeoflora from Kamenica is characterized with leaf imprints larger than in other ...
    макрофлора, млађи олигоцен, Прањански басен, Каменица
    ... downthrows along NW–Se faults and later ruptures of e-W and some of Ne–SW trends, controlled the formation of the Graben and its geometry. a characteristic of the Zapadna Morava Graben is the large subsidence of the Ottnangian-Karpatian, probably superposed upon similar movements of the Oligocene-Miocene. The ...
    ... научни рад 1 University of Belgrade – Faculty of Mining and Geology, Department of Paleontology, Kamenička 6, 11000 Belgrade, Serbia. E-mails: zorica.lazarevic@rgf.bg.ac.rs; jelena.milivojevic@rgf.bg.ac.rs 2 University of Belgrade – Faculty of Mining and Geology, Department of Geophysics, Đušina 7, 11000 ...
    ... Position of Čačak-Kraljevo Basin and position of palae- oflora locality. Fig. 2. Gravity anomaly map (Dg) with the position of Neogene basins (yellow shaded areas) and the location of the paleontolog- ical site Kamenica (pink dot) in the vicinity of a steep (gravitational or reverse) fault of Se–NW ...

  • Environmental flows and demands for sustainable water use in protected karst areas of the Western Balkans

    Zoran Stevanović, Aleksandra Maran Stevanović, Želimir Pekaš, Romeo Eftimi, Veljko Marinović (2021)
    Karst terrains cover some 30% of the Western Balkans, where rich karst aquifers represent the main source of potable water supply and ensure the development of local economies and tourism. In this “classical karst” region, there are also numerous sites or areas under different forms of protection—from those that are included in the UNESCO World Heritage list to natural monuments and landscapes that are protected by national legislation. In and around them are specific representatives of flora and fauna ...
    Karst, Zaštićena područja, Ekosistem, Ranjivost i održivost, Zapadni Balkan

  • Environmental flows and demands for sustainable water use in protected karst areas of the Western Balkans

    Zoran Stevanović, Aleksandra Maran Stevanović, Želimir Pekaš, Romeo Eftimi, Veljko Marinović (2022)
    Karst terrains cover some 30% of the Western Balkans, where rich karst aquifers represent the main source of potable water supply and ensure the development of local economies and tourism. In this “classical karst” region, there are also numerous sites or areas under different forms of protection—from those that are included in the UNESCO World Heritage list to natural monuments and landscapes that are protected by national legislation. In and around them are specific representatives of flora and fauna ...
    Karst, zaštićena područja, ekosistem, ranjivost i održivost, Zapadni Balkan

  • Trans-Lithospheric Diapirism as a Possible Mechanism for Ophiolite Emplacement?

    Nikola Stanković, Taras Gerya, Vladica Cvetković, Vesna Cvetkov (2024)

  • 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