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Упит dcterms_subject_txt:Choke Position Adjustments

231 items

  • Fault type assessment based on vertical gravity gradient anomalies – advantages and limitations

    Ivana Vasiljević, Snežana Ignjatović, Branislav Sretković (2024)
    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. ...
    dip-slip faults, vertical gravity gradients, field data analysis
    ... taken into the consideration (Rakić et al., 1973). Geophysical interpretation resulted in the different position of the faults FIb and F2b (orange dashed lines on Fig. 2b) from the position of the faults Fla and F2a on the geological map, while the orientation of faults dip is the same. [] ? ...
    ... block before the fault was formed. Fig. 2 shows the opposite situation, that is much less common in practice. For the inclined dip-slip #faults, position of the zero value moves from the fault line (the shallowest point of the fault in the models on Fig. 1 and Fig. 2, indicated by the dashed line ...
    ... According , to the ” theoretical (synthetic) models shown on Fig. 1 and Fig. 2, it is easy to determine the type of the dip-slip fault and approximate position of a fault line. Even the dip angle can be calculated from the mathematical formulas that describe the inclined fault (Essa et al., 2021), if ...

  • Life Cycle Assessment of Individual Wood Biomass Heating Systems in Households

    Boban Pavlović, Dejan Ivezić, Marija Živković (2020)
    The use of solid fuels (wood biomass and coal) for heating of households continues to be common practice within European countries. Solid fuel combustion in households contributes more than 46% to total emissions of fine particulate matter. In this study, a life-cycle assessment (LCA) of firewood-based and pellet-based heating systems is performed. These two systems represent two different types of individual wood biomass heating systems. In the case of the firewood-based heating systems, it is analyzed a typical stove ...
    Grejanje, Analiza životnog ciklusa, Drvna biomasa, Individualni sistemi grejanja
    ... 2018/11/POSITION-PAPER-Status-of-Using-Wood-Biomass-for-Energy-Purposes-in-Serbia-FINAL.pdf http://biomasa.undp.org.rs/wp-content/uploads/2018/11/POSITION-PAPER-Status-of-Using-Wood-Biomass-for-Energy-Purposes-in-Serbia-FINAL.pdf http://biomasa.undp.org.rs/wp-content/uploads/2018/11/POSITION-PAPER-S ...
    ... Serbia and Montenegro, UNDP, Belgrade. [7] Glavonjić, B. (2017). Position paper: Status of Using Wood Biomass for Energy Purposes in Serbia. UNDP Serbia, Belgrade. http://biomasa.undp.org.rs/wp- content/uploads/2018/11/POSITION-PAPER-Status-of-Using-Wood-Biomass-for- Energy-Purposes-in-Serbia-FINAL ...

  • Permanent GNSS monitoring of landslide Umka

    Mileva Samardžić Petrović, Jovan Popović, Uroš Đurić, Biljana Abolmasov, Marko Pejić, Miloš Marjanović (2020)
    Клизиште Умка је једно од највећих насељених активних клизишта у Србији. Активност клизишта Умка се прати већ више од 85 година, различитим геотехничким и геодетским техникама. Од 2010. године, активност kлизишта се континуирано прати у реалном времену аутоматизованим перманентним системом за праћење базираним на Глобалним навигационим сателитским системима (ГНСС). Поред тога, од 2018. године активност клизишта се додатно прати кинематичким ГНСС одређивањем положаја скупа карактеристичних тачака као и применом UAV фотограметрије. Главни циљ овог рада је приказ резултата опажања три ...
    клизиште, перманентно праћење, ГНСС
    ... 1. Automated permanent monitoring of the position change for a single permanent GNSS station in the landslide area in relation to the three-surrounding stable GNSS permanent stations of the national GNSS service, AGROS; 2. Monitoring of the position change for the set of characteristic points ...
    ... OF INTERNATIONAL CONFERENCE ON CONTEMPORARY THEORY AND PRACTICE IN CONSTRUCTION XIV PERMANENT GNSS MONITORING OF LANDSLIDE UMKA Position of passive GNSS network points and 62 characteristic points of Umka landslide. In order to monitor the Umka landslide using geodetic methods, ...
    ... 30 epochs with a 1 second interval of observation). Comparisons and averaging were made between multiple solutions for a single landslide point position. More specifically, the final landslide points coordinates (E, N, h) were estimated by calculating the arithmetic mean for all four kinematic GPS ...

  • Age and microfacies of oceanic Upper Triassic radiolarite components from the Middle Jurassic ophiolitic mélange in the Zlatibor Mountains (Inner Dinarides, Serbia) and their provenance

    Hans-Juergen Gawlick, Nevenka Đerić, Sigrid Missoni, Nikita Bragin, Milan Sudar, Divna Jovanović (2017)
    Neo-Tethys, trench-like basins, synorogenic deposition, evolving thrust belt, Triassic palaeogeography
    ... formation of SSZ + + i + ophiolites + + B oceanic crusUoophiolites position of the study area c Callovian/Early Oxfordian ongoing westward directed (~163-160 Ma) ophiolite obduction ? « -o —oC—o— J iddle - position of the P Micdle - Late study area' future DOB TIII "plagiogranites" ...
    ... y succession above the oceanic crust ncar the continental slope or, more convincingly 2) the sedimentary cover ofophiolites in a higher nappe position, because Upper Triassic ribbon radiolarites are only expected in more distal oceanic arcas. 'The ophiolitic mćlange in the study arca overlies different ...
    ... provenance. The mćlange was attributed to be a sedi- mentary mćlange, but the question of exact timing. of its emplacement in its present geographical position in the Dinaridic Ophiolite Belt west of the Drina-Ivanjica unit could not be solved. At present it is commonly believed that ophio- lite obduction ...

  • Defining location and dip of magnetic anomaly sources applying mathematical transformation

    Snežana Ignjatović, Milanka Negovanović (2022)
    It is significant to define the location and dip of anomaly sources during the geophysical exploration (magnetic, gravity, electric, seismic, etc.). In this paper we presented results obtained during magnetic survey. Applying different method of mathematical transformations on magnetic data we can find the position (edge) and dip of magnetic anomaly sources. For successful solution of this problem, we used combination two method tilt derivative and upward continuation. The study area located in the eastern Serbia, north part of ...
    magnetic data, tilt derivative, upward continuation, pluton Valja Strž

  • Landscapes and Landforms in the Toplica region (Southern Serbia)

    Aleksandar Valjarević, Natalija Batoćanin, Danica Srećković-Batoćanin, Tin Lukić (2022)
    U radu je prikazano 11 geomorfoloških oblika koji zaslužuju naziv objekata geonasledja. Rad razmatra genezu objekata, neophodnost geokonzervacije, tamo gde još nije pokrenuta, i položaj i distribuciua objekata unutar zona različitog turističkog interesovanja primenom metoda daljinske detekcije, terenskih osmatranja i geografskog informacionog sistema (GIS) .
    Toplica, GIS, analiza, geomorfološki objekat, objekat geonasledja, geneza, erozija

  • Medical Domain Document Classification via Extraction of Taxonomy Concepts from MeSH Ontology

    Mihailo Škorić, Mauro Dragoni (2019)
    This paper is a result of a task that was presented to attendants of Keyword Search in Big Linked Data summer school, that was organized by Vienna University of Technology, under the Keystone COST action in the summer of 2017. It presents a specific approach to the classification via creation of minimal document surrogates based on the US National medical library’s MeSH ontology, which is derived from the Medical Subject Headings thesaurus. In a series of previously classified medically ...
    document classification, MeSH, ontology, information extraction
    ... query. This stage was necessary in order to snap together the list of identifiers and determine the taxonomic position of the concepts used in the documents, as well as the relative position of their nodes in the hierarchy. 2. The conversion of documents into vectors of identifiers using concepts occurring ...
    ... object of that predi- cate, which reflects the position in taxonomy, this part of the task is reduced to the extraction of a subject and object for each of these triplets. First, it was necessary to find the name of the predicate that reflects the position in the taxonomy in the form [A-Z][0-9][0-9]([ ...
    ... ?naziv . ?koncept meshv:treeNumber ?treeNumber ORDER BY DESC(STRLEN(?naziv)) Figure 5. SPARQL query used for provision of a list of the name and position of all the concepts from the MeSH 2016 ontology. ure 6). This file will be used in the next step, where the concept names are located in the documents ...

  • Development of an integrated model for open-pit-mine discontinuous haulage system optimization

    Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović (2024)
    equipment selection, mine mechanization, expert judgment, linguistic variables, MCDM, FAHP

  • Hypogene karst associated with igneous intrusions and its influence on the subsequent karst evolution in high mountains (Central Andes, Peru)

    Alexander B. Klimchouk, Saša Milanović, Cristian Bittencourt (2021)
    Carbonate rocks of Cretaceous age are wide spread in the Peruvian Andes. The studied area in the eastern part of the Cordillera Occidental, near a large igneous intrusion and a skarn deposit, exemplifies polygenetic and multi-phase karst development. Hypogene karstification is related to a hydrothermal activity associated with a magmatic event at ca. 11-9.7 Ma responsible for the emplacement of the nearby intrusion and related alteration of the carbonate rocks. It has resulted in deep-rooted, laterally isolated stair-case-rising shaft ...

  • Hyperpycnites within the Devonian-Carboniferous flysch of the Carpatho-Balkanides (Kostadinovica, eastern Serbia)

    Miloš Radonjić (2020)
    This study presents new discoveries of vascular plants and the trace fossil Dictyodora liebeana (GEINITZ) from the Devonian–Carboniferous Kučaj-Zvonce flysch of the Carpatho-Balkanides and the implications of this fossil association for its sedimentary setting. The occurrence of the described plant debris in a deep-marine environment indicates the presence of hyperpycnites within the siliciclastic turbidites exposed at the Kostadinovica locality. The sedimentological data and the characteristics of the fossil material support the proposed model in which the sediment was at ...
    Mississippian flora, Dictyodora liebeana (GEINITZ), hyperpycnites, Kučaj-Zvonce flysch, Carpatho-Balkanides
    ... , 2004). The Bouma divisions were used for the description of the sedimentary sequences with Figure 1. The position of the Kostadinovica section. (a) Outline of SE Europe and the position of the Carpatho-Balkanides in Serbia. (b) Tectonic units of the Car- patho-Balkanides (modified after KRÄUTNER ...
    ... the col- lected palaeobotanical material is compared to similar Mississip- pian floras of Europe. Based on the studied sedimentary features and the position and mode of preservation of the palaeontological material, the Ko- stadinovica succession is interpreted as an distal part of the tur- bidite ...
    ... 2008; VOZÁROVÁ et al., 2009), local studies in the Carpatho-Balkanides could lead to a better understanding of the Kučaj-Zvonce flysch and its position and cor- relation to other equivalent formations of the Variscides of Europe. 2. GEOLOGIC SETTING The studied succession at the Kostadinovica locality ...

  • The application of ArcGIS for assessing the potential of solar energy in urban area: The case of Vranje

    Boban Pavlović, Milica Pešić-Georgiadis (2019)
    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 ...
    Obnovljivi izvori energije, potencijal solarne energije, GIS, mapiranje solarnog potencijala
    ... a raster representation that displays the sun track or apparent position of the sun as it varies through the hours of the day and through the days of the year. The sun map consists of discrete sectors defined by the sun's position at particular intervals during the day (hours) and time of year ...
    ... Earth's surface (kWh/m?). The solar irradiation in a specific area depends on latitude (geographic coordinate that specifies the north-south position of a point on the Earth's surface) because it determines the duration of daily solar radiation and annually. Apart from latitude, factors as air ...
    ... the Sun reaches the highest and lowest point in the sky above the horizon. Unlike the direct solar radiation, which totally depends on the position and distance of 329 a given area/point relative to the Sun, the diffuse solar radiation can originate from any direction. The diffuse solar ...

  • Energetska bezbednost sektora prirodnog gasa Srbije

    Aleksandar Madžarević, Predrag Jovančić, Miroslav Crnogorac (2023)
    U prve dve decenije 21. veka obezbeđivanje sigurnosti snabdevanja prirodnim gasom domaćeg tržišta bio je jedan od prioriteta razvoja energetike Srbije. Istovremeno, aspekt sigurnog snabdevanja bio je neizostavni deo slagalice stvaranja energetske bezbednosti. Izražena uvozna zavisnost je dominantna karakteristika sektora prirodnog gasa, tačnije, Republika Srbija je snažno zavisna od ruskog gasa, sa više od 80% uvezenih količina gasa, a do pre dve godine snabdevala se isključivo kroz jednu interkonekciju. U radu se razmatra aktuelna situacija u sektoru prirodnog ...
    N-1, IDUPS, energetska bezbednost, sigurnost snabdevanja
    ... University of Belgrade. Graduated, master's and doctorate in the field of Mechanization in mining, at the FMG, UB, where he was first elected to the position in 2004. He is the author of many papers in internationally recognized journals, participated in the development of various studies and international ...
    ... mining, mechanization, and automation in mining, at the Faculty of Mining and Geology, University of Belgrade, where he was first elected to the position in 2014. He is the author of many papers in internationally recognized journals, participated in the development of various studies and int ...

  • The first record of nautiloids (Cenoceras intermedius) from the early Pliensbachian of Rgotina, (Getic nappe, eastern Serbia)

    Paul Țibuleac, Barbara V. Radulović, Marinko Toljić (2020)
    Cenoceras intermedius (J. Sowerby) is one of the most widespread species among the Early Jurassic nautiloid fauna and its geological range still controversial up to the present day. The specimen of Cenoceras intermedius from the sandy bioclastic limestones of Rgotina (Getic nappe of eastern Serbia), is a large half conch representing the phragmocone. Viewing our findings in light of previous results suggests the main morphological changes occurred during the ontogenetic evolution. The coiling starts with a round-square whorl section, ...
    Cephalopoda, Cenoceras intermedius, ontogenetic changes, geological range, northwestern Neo-Tethys, Pliensbachian

  • Influence of DEM resolution on numerical modelling of debris flows in RAMMS - Selanac case study

    Jelka Krušić, Biljana Abolmasov, Mileva Samardžić Petrović (2019)
    Debris flows induced by intensive rainfall represent very hazardous phenomena in many parts of the World. Methods for prediction of runout distance of flow like mass movements are different and depending on the input data, rheology, and available or appropriate numerical solution. However, sometimes it is not easy to obtain pre event and post event high-resolution data in the rural or mountainous area. Thus, the topology of terrain is the most important input parameter for the every real case ...
    tecišta, modeliranje, RAMMS, DEM
    ... high. Material further transported as a flow throw two predisposed gullies with occasional flows. Geographical position of tested area is shown on Fig.1. Figure 2 Geographical position of the Selanac case study Geological settings are very complex; initiation zone belongs to Jurassic ophiolites ...
    ... Figure 4a) Calculation of deference in topography before and after the activation of the debris flow, b) Pleiades image after the event and position of defined release area Source area was defined as a block within average depth of 15 m. In previous results we considered much more averaged ...

  • Numerical Models of Debris Flows with Entrainment Analysis-Case Studies from the Republic of Serbia

    Jelka Krušić , Biljana Abolmasov, Miloš Marjanović (2021)
    The results of material entrainment analysis in RAMMS debris flow software, as well as numerical models of final flow heights for two case studies from the Republic of Serbia are presented. Both of debris flow cases started with initial sliding of huge volume block, prolonging to behave as flowing process. Results of the analysis showed that entrainment material affects final results of transportation model, runout distance, deposition area and volume of debris flow. In both cases entrainment volume is very ...
    tecišta, zadržavanje nanosa, RAMMS, validacija

  • Three new Sr-bearing arsenates, hydrothermally synthesized in the system SrO–MO–As2O5–H2O (M2+ = Mg, Cu, Zn)

    Tamara Đorđević, Ljiljana Karanović (2018)
    During systematic research on the mineral-related synthetic arsenates, with particular focus on their structural and spectroscopic classification, three new Sr-containing arsenates Sr2Mg(AsO4)2· 2H2O (1), Sr2Zn4(AsO4)4·H2O (2) and Sr2Cu7(AsO4)6 (3) have been synthesized under low-temperature hydrothermal conditions in the system SrO MO As2O5 H2O (M 2þ = Mg, Zn, Cu). Their crystal structures were determined using room-temperature single-crystal X-ray diffraction data and refined to the following R-values: 1– R1 = 0.025; 2– R1 = 0.030; 3– R1 = 0.035. Compounds ...
    стронцијум, арсен, арсенати, кристална структура, дифракција рендгенских зрака на монокристалима, хидротермална синтеза, Раманска спектроскопија

  • Adsorption and Polymerization of Aniline on Cu(II)-Montmorillonite:  Vibrational Spectroscopy and ab Initio Calculation

    M. Ilić, E. Koglin, A. Pohlmeier, H. D. Narres, M. J. Schwuger (2000)
    Batch adsorption experiments in the presence of oxygen were performed to study the interlayer reactions of aniline on Cu(II)-montmorillonite in aqueous solutions. At concentrations below a critical value of CC ) 2.6 mmol dm-3 only a colored Cu(II)-aniline complex is formed, characterized by a stability constant of log(Kassoc/dm3 mol-1) ) 1.5. At concentrations beyond Cc aniline polymerizes yielding a dark brown product, which is identified by two vibrational spectroscopy techniques, attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy and ...
    Анилин, адсорпција, полимеризација, Cu(II)-Монтморилонит, ФТИР, аб инитио прорачун

  • Using gravity data to define structural correlation affecting the formation of Neogene basins

    Snežana Ignjatović, Ivana Vasiljević, Branisav Sretković, Milanka Negovanović (2023)
    A gravity survey can help to define the structural correlation in the study area. The structures that have influenced the development of Neogene basins can be defined using gravity data. By applying mathematical transformations to gravity data, the geological structures (faults, nappes, etc.) that impacted the formation of Neogene basins can be defined. We have taken the part of the Dinarides as the test region. The paper presents the results obtained using the procedure residual, vertical gradient, and total ...
    gravity survey, mathematical transformation, basin

  • Neanderthal Settlement of the Central Balkans during MIS 5: Evidence from Pešturina Cave, Serbia

    Dušan Mihailović, Stefan Milošević, Bonnie A.B. Blackwell, Norbert Mercier, Susan M. Mentzer, Christopher E. Miller, Mike W. Morley, Katarina Bogićević, Dragana Đurić, Jelena Marković, Bojana Mihailović, Sofija Dragosavac, Senka Plavšić, Anne R. Skinner, Iffath I.C. Chaity, Yiwen E.W. Huang, Seimi Chu, Draženko Nenadić, Predrag Radović, Joshua Lindal, Mirjana Roksandić (2022)
    Recent research in the southern Central Balkans has resulted in the discovery of the first Middle Paleolithic sites in this region. Systematic excavations of Velika and Mala Balanica, and Peˇsturina (southern Serbia) revealed assemblages of Middle Paleolithic artifacts associated with hominin fossils and animal bones. This paper focuses on Pesturina Layer 4, radiometrically and biostratigraphically dated to Marine Isotope Stage (MIS) 5, which yielded traces of temporary hunting camps. The remains of large ungulate prey are associated with predominantly ...
    centralni Balkan, srednji paleolit, Šarentijen, MIS 5, ponašanje neandertalca

  • Regional Slope Stability Analysis in Landslide Hazard Assessment Context, North Macedonia Example

    Miloš Marjanović, Biljana Abolmasov, Igor Peshevski, James Reeves, Irena Georgievska (2020)