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Упит dcterms_subject_txt:gravity survey

239 items

  • 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

    Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski (2024)
    General Earth and Planetary Sciences
    ... fea- tures encompass data that may not be readily accessible to all researchers, such as the Bouguer anomaly map (which can be costly if a gravity survey was not conducted), the total intensity of the Earth's magnetic field (similar to the Bouguer anomaly map), the BR3 map (which necessitates ...
    ... ), the Bouguer 1.e., gravity anomaly map (BAM) and the total intensity of the Earth's magnetic field anomaly map, reduced to the pole @ Springer 1630 (RTP), were selected as geophysical input parameters 1.e., features for predictive lithological mapping. Gravity data (Bilibajkić et al ...
    ... booklet for the sheet of Titov Veles. Federal Geological Survey, Belgrade (In Macedonian) Karajovanovic M, Hristov S (1976) Explanatory note of the General Geological Map of Kumanovo 1:100,000 map sheet: Skopje, Fed- eral Geological Survey Jugoslavia, p 58 (in Macedonian, with English summary) ...

  • Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit

    Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić (2015)
    ... with the linear correlation coefficient r amounting: r = -0,8613 Graphic survey of soil oscillation law is shown in Figure 2. No. 3, 2015 Mining & Metallurgy Engineering Bor 60 Figure 2 Graphic survey of soil oscillation law curve at the OP „Kovilovača” ♦ Model 2 4227,1- ...
    ... Table 3 presents the survey of reduced distances R, recorded oscillation velocities vr, calculated oscillation velocities vi1, vi2 as well as the difference between recorded and calculated soil oscillation velocities for models 1 and 2. Table 3 Survey of recorded and calculated soil ...
    ... velocity v. The evaluation of the relationship de- gree of two variables 8 to values of the curveline dependency index ρ is given in the following survey: 0.0 < ρ < 0.2 - none or highly poor corre- lation, 0.2 < ρ < 0.4 - poor correlation, 0.4 < ρ < 0.7 - significant coorelation, 0.7 < ρ < 1.0 ...

  • Transition pathways of household heating in Serbia: Analysis based on an agent-based model

    Boban Pavlović, Dejan Ivezić, Marija Živković (2022)
    To explore pathways of the energy transition of household heating, an agent-based simulation model was developed for the case of the Serbian household sector. The model is focused on individual entities (households) with the objective to explore the effects of policy instruments on energy transition in households with individual heating systems. Empirically collected survey data were used as input for households’ attitudes towards sustainable heating. Simulations showed that the proposed instruments would lead to higher heating efficiency and less ...
    energetska tranzicija, modeliranje bazirano na agentima, sistemi grejanja, sektor domaćinstva, obnovljivi izvori energije, emisija CO2

  • Хазард од клизишта у Србији у 21. веку

    Biljana Abolmasov (2019)
    клизишта, хазард од клизишта, промене климе
    ... Classification, Description, Caus Effects-Canadian Technical Guidelines and Best Practices related t national initiative for loss reduction, Geological Survey �f Canad 2013. [6] Hungr O., Leroueil S., Picarelli L. (2012). Varnes classification o an update. Proceedings of the 11th International and 2nd ...
    ... Classification, Description, Cau Effects-Canadian Technical Guidelines and Best Practices related national initiative for loss reduction, Geological Survey f Cana 2013. Hungr O., Leroueil S., Picarelli L. (2012). Varnes classification an update. Proceedings dintthimdtli onal’ ambrican Symposium on Landslides ...
    ... Landslides in the Adriatic-Balkan Region � A Landslide Research, 11�13 October 2017 Ljubljana, Slovenia, Eds.Jem Miko� M., Verbov�ek T., Geological Survey of Slovenia. Vol. 1:95�100. Biljana Abolmasov LANDSLIDE HAZARD IN SERBIA IN THE 21 CENTURY S u m m a r y In recent years, Serbia has been vulnerable ...

  • Development and Application of Methodology for Quantification of Overbreaks in Hard Rock Tunnel Construction

    Zoran Berisavljević, Dragoljub Bajić, Vojkan Jovičić (2023)
    A methodology for determining overbreaks in hard rock tunnel construction using the drill-and-blast technique is presented in this paper. The methodology was developed for and applied to crystalline medium- to thick-bedded limestone, but it can be used in any jointed hard rock mass. Overbreaks are inevitable in hard rock tunnelling in a low-confinement environment (shallow tunnels up to several hundred meters deep) as a result of wedge failures along unfavourably oriented discontinuities caused by blasting. It is widely accepted ...
    hard rock, drill-and-blast, geological overbreak, technological overbreak, stability criterion, discontinuity orientation, tunnel construction

  • Hydrogeochemistry of Uranium in the Groundwaters of Serbia

    Marina Ćuk, Maja Todorović, Petar Papić, Jovan Kovačević, Zoran Nikić (2015)

  • Analysis and visualization of geophysical well-logging data from closely spaced boreholes

    Branislav Sretković, Ivana Vasiljević, Dimitry Sidorov - Biryukov (2024)
    Geophysical logging measurements for determining the condition of the rock mass on the dam profile and locating the predisposed directions of water circulation and loss from the reservoir were conducted in four boreholes distributed at a close distance. The survey was carried out in a typical karst terrain, which is an additional challenge for defining the geological model, especially in terms of water retention. That kind of data set provides an excellent opportunity for a new approach to analysis ...
    well-logging in karst, water loss, data correlation, data fusion
    ... CEBEPHA MAKEJIOHMHJA H3PABOTEHA BP3 OCHOBA HA HOBH FEO0DH3HUKH TIOJIATOILUM Hosuua Cmoanuk, Heuua 4n0o6 FAULT TYPE ASSESSMENT BASED ON VERTICAL GRAVITY GRADIENT ANOMALIES – ADVANTAGES AND LIMITATIONS Jvana Pasiljević, Snežana Ignjatović, Branislav Sretković TFEOTEPMAJIEH IIOTEHIIMJAJI BO PEIIVBJIMKA ...
    ... works during the construction of the dam itself, that determined the greatest loss of water takes place under the very body of the 100 concrete gravity dam, up to the depths that conventional surface geophysical methods cannot reach. Analysis of the standard geophysical logging data provided ...
    ... the predisposed directions of water circulation and loss from the reservoir were conducted in four boreholes distributed at a close distance. The survey was carrled out in a typical karst terrain, which is an additional challenge for defining the geological model, especially in terms of water retention ...

  • Depth geological relations of the wider area of Belgrade - based on the wells and geophysical data

    Đorđe Marinović, Ljupko Rundić (2020)
    Предметна референца обухвата простор шире околине Београда укупне површине око 2.000 km2. Аутори су објединили капиталне геолошке и геофизичке податке обезбеђене површинским истраживањима и мултидисциплинарним елементима из 52 бушотинe са дубинама између 33 и 2.733 m. Конкретни палеонтолошки налази специјализованих аналитичара са детерминацијом макро и микрофауне и флоре, презентовани су како из неогених формација тако и из басенске подине. Осим конвенционалних петролошких описа стена цитиране су и микроскопске детерминације интрузивних и екструзивних магматита. Из затвореног басенског простора корелативно су ...
    неоген, дубинска разграничења, геофизички показатељи, структурно-палеогеографска интерпретација

  • Fluid inclusion systematics in the Okoška gora polymetallic deposit

    Aleš Šoster, Miloš Velojić, Barbara Potočnik Krajnc, Matej Dolenec (2021)
    ... Precambrian Research, 224, 236–278. Mioč, P. 1972: Basic Geological Map of Yugoslavia 1:100.000.5 to the Sheet Slovenj Gradec. Federal Geological Survey B Sigesmund,S., Oriolo, S., Heinrichs, T.. Basei, M. A. S., Nolte, N 2018: Provenance of Austroalpine basement metasedimenits: connections between ...
    ... 103475. Mioč,P. 1972: Basic Geological Map of Yugoslavia 1:100.000. Sheet Slovenj Gradec. Interpreli to the Sheet Slovenj Gradec. Federal Geological Survey Belgrade, 74 pp. Schmid, S. M., Fiigenschuh, B., Kounov, A., Matenco,L., Nievergelt, P.. Oberhinsli, R., Picuge Schefer, S., Schuster, R., Tomljenovič ...

  • The final closure of the Vardar Ocean: paleomagnetic, AMS and structural results

    Emö Márton, Marinko Toljić, Vesna Lesić, Vesna Cvetkov (2020)
    ... closure of the Vardar Ocean: paleomagnetic, AMS andstructural results Emö Márton, Marinko Toljić, Vesna Lesić, and Vesna Cvetkov Mining and Geological Survey of Hungary, Paleomagnetic Laboratory, Budapest, Hungary (paleo@mbfsz.gov.hu) The Vardar zone divides units of African affinity from units of the ...

  • Палеомагнетски резултати из Тимочког магматског комплекса, Источна Србија

    Весна Лесић, Емо Мартон, Драган Лукић, Весна Цветков (2018)
    ...  В.4    1) Републички геодестки завод, Одељење за геомагнетизам и аерономију, Београд, Србија, e‐mail: vlesić@drenik.net  2) Mining and Gelogical Survey of Hungary  3)Природњачки музеј, Београд, Србија  4) Универзитет у Београду, Рударско‐геолошки факултет, Катедра за геофизику, Београд, Србија    ...
    ... 4    1) Republic Geodetic Authority, Department of Geomagnetism and Aeronomy, Belgrade, Serbia, e‐mail: vlesić@drenik.net  2) Mining and Gelogical Survey of Hungary  3) Nature History Museum, Belgrade, Serbia  4)  University of Belgrade, Faculty of Mining and Geology, Depratment of Geophysics, Belgrade ...

  • Classification of Terms on a Positive-Negative Feelings Polarity Scale Based on Emoticons

    Mihailo Škorić (2017)
    The goal of this paper is to draw attention to the possibility of using emoticon-riddled text on the web in language-neutral sentiment analysis. It introduces several innovations in the existing framework of research and tests their effectiveness. It also presents a software tool especially made for that purpose, explains how it builds a database with sentimental value of terms and offers the user manual. Finally, it presents a software tool that tests the new database and gives some examples ...
    data mining, information extraction, emotions, text on the web
    ... days, 389 survey participants assessed the 19 sub- mitted and proposed additional 22 determiners, 9 of which were accepted3. The results differed from one determiner to another – somewhere the results were more balanced, while somewhere they were more speckled (Figure 1). After the survey ended, the ...
    ... first two aforementioned prerequisites were fulfilled. 2.2 Assigning values to the determiners The values of determiners were obtained by a method of survey which was conducted on the internet platform Google forms, which people were able to access through hyperlinks published on social networks or passed ...
    ... the highest value 1 and tha value of a determiner with highest positive value 0.81, so that determiner <3, which, according to participants of the survey reflects a positive mood of the highest intensity, was assigned a maximum value of 1. Using this all determiners were assigned proper values and the ...

  • Properties of fly ash and slag from the power plants

    Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić (2016)
    This paper describes the physical, chemical and mineral properties of ash and slag, which were taken from thermal power plants Nikola Tesla A, Nikola Tesla B, Kostolac A and Kostolac B. The knowledge of the mineralogical material composition is important because the type of minerals directly determines the properties of the fly ash and slag and their possible application. Laboratory tests showed that ash and slag samples consist of the following minerals: amorphous materials, quartz, feldspar, mullite, melilite, cristobalite, ...
    fly ash, slag, physical composition, chemical composition, mineral composition, X-ray diffraction method
    ... Repository is available at: www.dr.rgf.bg.ac.rs 2016 | 69/3 | 317–324 | 6 Figs. | 4 Tab. | www.geologia-croatica Journal of the Croatian Geological Survey and the Croatian Geological Society 1. INTRODUCTION Fly ash is the product of burning coal and arises from inorganic substances melting in the ...
    ... Annually, the Kolubara basin produces about 30Mt lignite, which amounts to 70% of the total coal production in Serbia. According to the Geological Survey of the Kolubara basin, the lignite re- sources and reserves are currently estimated at 2811Mt. Most of the lignite produced (90%) is used for electricity ...

  • 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

  • A survey of greenhouse gases production in central European lignites

    Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska (2021)
    Lignit, Gasovi sa efektom staklene bašte, Ugljen dioksid, Metan, Azotni oksid
    ... Измењено: 2023-10-14 04:11:08 A survey of greenhouse gases production in central European lignites Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska ...
    ... Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] A survey of greenhouse gases production in central European lignites | Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz ...
    ... archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs A survey of greenhouse gases production in central European lignites Anna Pytlak a,⁎, Anna Szafranek-Nakonieczna b, Weronika Goraj b, Izabela Śnieżyńska c ...

  • Towards Sustainable Management of Transboundary Hungarian-Serbian Aquifer

    Zoran Stevanović, Peter Kozák, Milojko Lazić, Janos Szanyi, Dušan Polomčić, Balazs Kovács, Jozsef Török, Saša Milanović, Bojan Hajdin, Petar Papić (2011)
    ... distance along the riverbank [10]. 4.9.5 Conclusion For this proiect numerous activities were undertalsurvey and measurements, the establishment of a GW monitoring network, the creation of a GW initial database, common workshops and seminars for local capacity ...
    ... ofthe results of the project, an initial conceptual hydrogeological and hydrodynamical model was created and tested. The results of the conducted survey enabled the proposal of many concrete measures and activities for better management and sustainable development of the groundwater as a very important ...

  • Geotechnical Conditions for Construction of Savski Trg Metro Station as a Part of the Belgrade Metro Line One

    Nemanja Stanic, Dragoslav Rakic, Josip Isek, Slavoljub Simic (2024)
    In order to solve serious traffic congestion in Belgrade, a number of studies regarding the Belgrade Metro construction have been carried out since 1973. However, only in 2019, the routes of the future metro lines 1 and 2 were de-fined as a part of the General Metro Construction Project. The lines are de-signed to intersect at the location of Sava Square, where an interchange met-ro station will be built. It represents a complex geotechnical structure consist-ing of three different ...
    metro station, geotechnical modelling, displacements

  • 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
    ... wđHendTenve·ah.re:_;s jdegc Well Head Pressure 6 BARaA 6.5. Figure Well XX-1 in Prosper |_PVT Data T Oil Gravity 920 Kg/m3 Polished Rod Power 0.32914 - |kw (Gas Gravity 0.687 sp. gravity Name Plate Power\ 0.44828 w Water Salinity 6221.83____ppm WorkDone ByPump|9050.19 — |N _E pre== Work Done ...
    ... Posibon (cm} 6.2. Figure Well XX-1 Velocity plots 41 DEVIATION SURVEY PLOT Deviation Survey Plot Rod Diameters 7/8" (22. 3/4" (19. 3/4" (19. 3 3 j #Guides/Rod: 6.3. Figure Well XX-I Deviation survey plot 42 DEVIATION SURVEY PLOT -I H _e - | || -s i | a K) ı i | || ...
    ... rod strings and fluid by moving the smooth rod at the desired speed. The rod strings descend back during the downward stroke due to the force of gravity. The movement of the rod strings causes cyclic movement of the pump. To lift the rod strings and fluid to the desired height at a given speed, ...

  • From post-disaster landslides inventory to open landslides data

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

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

    Vesna Lesić, Emo Marton, Vesna Cvetkov, Dragana Jovanović (2018)
    ... – Republic Geodetic Authority, Department ofGeomagnetism and4erohomy, Bulevar vojvode Mišića 39, 11000 Belgrade, Serbia 2 — Mining and Geological Survey ofHungary, Paleomagnetic Laboratory, Columbus utca 17-23, H-1145 Budapest, Hungary 3 — University ofBelgrade — Faculty ofMining and Geology, Department ...