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Упит dcterms_subject_txt:Otoliti in situ

1809 items

  • Clockwise rotation in the Serbian segment of the Vardar zone and in the Danubicum of Eastern Serbia - tetonic implication

    Vesna Lesić, Emo Marton, Vesna Cvetkov, Dragana Tomić (2015)

  • Hazardous substances in karst aquifer waters - one of the results of the operational monitoring of groundwater in Serbia

    Zoran Stevanović, Veljko Marinović, Branislav Petrović (2020)
    У циљу оцене стања животне средине и разумевања потенцијалних узрока још раније евидентираног лошег хемијског статуса водног тела подземних вода „Крш–север“, извршенa je хидрогеолошка проспекција шире околине лежишта бакра Мајданпек, која је укључилаистраживање површинског копа, флотационог језера и главних карстних врела и пећина. Имајући у виду да се експлоатационо поље рудника бакра Мајданпек директно граничи са карстном издани и водним телом подземних вода „Крш–север“, параметри квалитета подземне воде су анализирани (in situ и лабораторијски) на два главна карстна врела ...
    Опасне супстанце, карстна издан, бакар, флотацијско језеро, Мајданпек, Србија

  • Definisanje parametara čvrstoće na smicanje kod izvođenja kosina u ispucalom stenskom masivu

    Zoran M. Berisavljević (2016-04-01)
    Definisanje parametara čvrstoće na smicanje ispucalih stenskih masa predstavlja jedanod najzahtevnijih zadataka mehanike stena. Geotehnička istraživanja su uglavnomograničena na rezultate laboratorijskih ispitivanja malih makroskopski homogenihuzoraka, sa kojih se vrši ekstrapolacija rezultata na terensku razmeru. Ispitivanja semogu vršiti in situ, ali su i ona ograničena veličinom korišćene aparature imikrolokacijom na kojoj se vrše ispitivanja. Pored toga, moguće je vršiti različitaispitivanja na fizičkim modelima, koja su veoma složena i skupa. Ekstrapolacijapodataka sa malog uzorka na terensku razmeru daje mnogo bolje rezultate ...
    naponsko stanje, ispucalost, heterogenost, čvrstoća na smicanje, geološki indeksčvrstoće, Hoek-Brownov materijal, kompozitni uzorci, dezintegracija, povratna analiza

  • Spatial–temporal assessment of hydrocarbon biodegradation mechanisms at a contaminated groundwater site in Serbia

    Nenad Marić, Jana Štrbački, Jason Polk, Latinka Slavković Beškoski, Jelena Avdalović, Marija Lješević, Kristina Joksimović, Aleksandra Žerađanin, Vladimir P. Beškoski (2022)
    General Earth and Planetary Sciences,General Environmental Science,Ecology,Ecology, Evolution, Behavior and Systematics

  • Application of stochastic models for mine planning and coal quality control

    Dejan Stevanović, Božo Kolonja, Ranka Stanković, Dinko Knežević, Mirjana Banković (2014)
    ... of coal quality at the mine phase is usually planned from in-situ coal parameters which are estimated from coal samples. These samples are commonly used to generate maps of in-situ coal parameters. With such maps, it is possible to know in advance the effect of mining from different benches of the ...
    ... � � � � � �; ( , )y The steps involved in the study can be summarized as: (1) Build a consistent geological database using drill holes and use this data to develop MinexTM coal quality seam models to map the variability associated with the in situ qualities. Generation of multiple equally probable ...
    ... stockyard pile qualities in relation to planned average for various pile sizes (masses). Check the size of the pile, which leads to an acceptable range of content variation. Repeat (2) and (3) for each of several simulated models of sulfur contents to map the influence of in situ qualities uncertainty ...

  • The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)

    Marina Čokorilo Ilić, Ana Mladenović, Marina Ćuk, Igor Jemcov (2019)
    Geography, Planning and Development,Aquatic Science,Biochemistry,Water Science and Technology
    ... hydraulic behavior; in situ tests; groundwater aggressiveness; tunnel vulnerability 1. Introduction The presence of an underground structure in a karst can have a considerable impact on the natural status of groundwater and, conversely, the groundwater can affect the structure (the two are in constant interaction) ...
    ... hydraulic behavior; in situ tests; groundwater aggressiveness; tunnel vulnerability 1. Introduction The presence of an underground structure in a karst can have a considerable impact on the natural status of groundwater and, conversely, the groundwater can affect the structure (the two are in constant interaction) ...
    ... leakage points in concrete lining fissures and internal boreholes. Quantitative monitoring was performed by continuous gauging of pressure and leakage, and consecutive hydrometric measurements along characteristic sections of the tunnel. Qualitative prospecting was carried out in situ, using a multi ...

  • Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)

    Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)

  • 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

  • Paleomagnetic study of Jurassic-Early Cretaceus sediments in the Danibicum of Eastern Serbia

    Vesna Cvetkov, Emo Marton, Vesna Lesić, Dragana Tomić (2015)
    ... our study was to find out if the study area was involved in regional displacement during or after the time covered by the samples. We sampled 8 localities of Late Jurassic and Early Cretaceous limestones. The cores were oriented in situ using geological compass and sun compass if needed. Samples ...
    ... ili posle vremenskog peroda obuhvaćenog starošću uzoraka. Uzorkovano je 8 lokaliteta jurskih i donjekrednih krečnjaka. Jezgra su orijentisani "in situ" geološkim kompasom i sunčevim kompasom gde je bilo potrebno. Uzorci su podvrgnuti standardnim paleomagnetskim merenjima i demagnetizacijama. Izvršena ...
    ... (Romania) southward in Eastern Serbia and continues in western Bulgaria. This unit is composed of Arjana, Coşuştea, Upper and Lower Danubian thrust complexes. Our area of investigation belongs to the Upper Danubian on the Serbian side of the River Danube, but, it has a continuation in Romania, where ...

  • Prirodno prečišćavanje i stimulisana bioremedijacija podzemnih voda zagađenih naftnim ugljovodonicima

    Nenad M. Marić (2016-09-26)
    Disertacija se konceptualno sastoji iz dva dela kojima je obuhvaćen pasivan (prirodnoprečišćavanje) i aktivan remedijacioni pristup (stimulisana bioremedijacija) kodpodzemnih voda zagađenih naftnim ugljovodonicima.U prvom delu disertacije prikazani su rezultati osmatranja procesa prirodnogprečišćavanja u podzemnim vodama na lokaciji istorijskog zagađenja kerozinom.Tragovi zagađenja naftnim ugljovodonicima pronađeni su 20 godina nakon prosipanjakerozina. Ovo je stvorilo osnovu za proučavanje efekata dugotrajne izloženostipodzemnih voda procesima biodegradacije u terenskim uslovima. Uočeno je da sesnižene koncentracije elektron akceptora (O2, NO3-, SO42-) i povišene koncentracijemetaboličkih produkata biodegradacije ...
    podzemne vode, naftni ugljovodonici, kerozin, prirodno prečišćavanje,stimulisana bioremedijacija
    ... WZ (2006) in: Practical Handbook of Environmental Site Characterization and Ground-Water Monitoring. 2nd Ed, Nielsen D, Eds, CRC Press, Taylor & Francis Group. 149. Wilson JT, Armstrong JM, Rifai HS (1994) A full scale field demonstration on the use of hydrogen peroxide for in situ bioremediation ...
    ... e tehnologije (Beškoski et al., 2012) U zavisnosti od mesta primene razlikujemo in situ (primena na samoj lokaciji koja je zagađena) i ex situ bioremedijaciju (primena van lokacije koja je zagađena). In situ metode su uglavnom jeftinije za izvođenje, jer podrazumevaju tretman na lokaciji zagađenja ...
    ... ............ 139 4.2.3. Procena potencijala lokacije za primenu stimulisane in situ bioremedijacije ...................................................................... 141 4.2.4. Primena stimulisane in situ bioremedijacije podzemnih voda ............................................... ...

  • Application of Expansive Mortars for the Formation of Artificial Screens During Blasting in Urban Areas

    Milanka Negovanović, Lazar Kričak, Stefan Milanović, Nikola Simić, Jelena Majstorović (2024)
    During construction of buildings in urban areas, sometimes there is a need to blast solid rock mass in the immediate vicinity of the surrounding buildings. In that case, the aim is not only to increase the efficiency of blasting, but also to reduce harmful effects of ground vibration induced by blasting. At the same time, it is very important to protect the buildings located in the safe zone from the blast site as well as remaining rock mass around ...
    expansive mortar, artificial screens, pressure, rock breaking, building foundation

  • Validation of vulnerability assessment by means of the Time Dependent, Model: case study from the Slovenian karst catchment

    Vladimir Živanović, Nataša Ravbar, Igor Jemcov (2019)
    Groundwater vulnerability assessment methods are continuously being developed and existing methods are very often modified to provide better simulation of natural protection conditions and more objective results. Most frequently used methods are based on calculation of predefined parameters influencing water infiltration and underground flow, which can often lead to bias conclusions related to vulnerability evaluations. Some other methods, like the Time Dependent Model (TDM) are based on an approach, where parametrization is obtained at the final stage of the ...
    Ocena ranjivosti podzemnih voda, karstne podzemne vode, TDM metoda, delineacija sanitarnih zona, Slovenački karst

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

    Vesna Lesić, Emo Marton, Vesna Cvetkov, Dragana Jovanović (2018)
    ... cight sites of dacitoandesites andfifteen localities of granodiorites both of Oligocene age. Samples were drilled and oriented in situ both by magnetic and sun compasses. In the laboratory samples were cut into standard size specimens, then subjected to standard paleomagnetic measurements which included ...
    ... e the rest of the specimens from each locality/site. Magnetic mineralogy experiments were carried out on selected specimens. The demagnetization curves were then analyzed for linear segments which were used for statistical evaluation on locality/site level. The fold/tilt test was carried out on locality ...
    ... Schmid et al. (2008). In this 160 km long strip we sampled on the north in the wider Rudnik Mts. area seven localities of Late Cretaceous micritic limestones and one locality of flysch and seventeen sites of Oligocene-Earliest Miocene igneous rocks of different composition. In the south, ın the wider ...

  • Polyhedral characteristics of the cosalite-type crystal structures

    Sabina Kovač, Predrag Dabić, Aleksandar Kremenović, Aleksandar Pačevski, Ljiljana Karanović, Marko V. Rodić, Martina Tribus (2019)
    kristalna struktura, kozalit, poliedarske karakteristike

  • Pre-failure deformation monitoring as rockfall prediction tool

    Miloš Marjanović, Biljana Abolmasov, Zoran Berisavljević, Marko Pejić, Petko Vranić (2021)
    General Engineering
    ... rock face site and adopted the acquisition accordingly (annual) in respect to our study site. We tried to extract the deformation threshold as exampled in abovementioned case studies and estimate the total vectors instead of its line-of-sight component as suggested by [4]. 2. Study site Location ...
    ... [3] emphasize the spatial, i.e. the pre-failure deformation aspect in their research, while acknowledging the frequency precursor analysis as impractical with TLS technique in their case. They emphasized site-specific limitations in respect to TLS monitoring. The cliff they monitored turned out to ...
    ... sandstone, alternating with a thin laminated marly siltstone, while claystone is likely lost in the sediment transport or missing for other reasons. Tectonics is not particularly pronounced at the site or in its vicinity, the formation has moderately gentle bedding (40-45°) that is dipping towards ...

  • Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit

    Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac (2023)
    ... distance from the blasting site to the monitoring point r increase in the same or approximately the same ratio, the rock mass oscillation velocity V remains the same [6]. Here we cite second way of rock mass oscillation velocity equation derivation. If, in blasting in the specific environment, ...
    ... that can have hazardous impact on the environment and result in moving of buildings. In order to protect the environment from shock when performing blasting it is necessary to define rock mass oscillation equation for each working site. This paper ofjers the analysis of the simplified model for ...
    ... most often is used the M.A. Sadovskii equation where oscillation velocity V is given in the form of: v=K-R"; (D where R is reduced distance, that represents distance from the blasting site to monitoring site r , reduced to the total quantity of the explosive Q i.e., R =%č. Parameters K and m ...

  • 2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem

    Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov (2019)
    2D inversion, geoelectrical method, Wenner array, ecology, Ada Huja
    ... proclaimed to be the most unattractive housing settlement in Belgrade, is located near the former waste dump site “Ada Huja”. The lack of statistical reports on the health condition of the people who live in the near vicinity of the waste site indicates a neglecting attitude for the health of people ...
    ... THE FORMER WASTE DUMP SITE “ADA HUJA” 3.1 Basic Information Convenient location of the former waste site “Ada Huja” (4 km from the Belgrade city center, first city zone) resulted in the housing development for 900 to 2000 people built on the most unsanitary locality in Belgrade (housing development ...
    ... “Deponija”). In the beginning of the year 1960, under the jurisdiction of the former Federal executive council of SFRY, “Ada Huja” became a waste dump site. A variety of birds was endangered as consequence of this decision, one of which was the white-tailed-eagle, the largest eagle in Europe. Through ...

  • Correlability of Solar Wind with Seismic Events in the Balkan Peninsula Zone

    Filip Arnaut, Dejan Vučković, Ivana Vasiljević, Vesna Cvetkov (2021)
    The Solar Heliospheric Observatory (SOHO) satellite was launched on the 2nd of December 1995 at L1 Lagrange point (1.5×106 km from Earth) with the purpose of gathering data for helioseismology, remote sensing of the solar atmosphere, and solar wind in situ. The satellite was positioned into orbit in early 1996, with data acquisition expected to commence on January 20th. The correlation between increased values of solar wind parameters and earthquakes in the Balkan peninsula zone between 1996 and 2018 ...
    предвиђање потреса, соларни ветар, статистичка валидација узрочника потреса

  • Review: Methodological approaches and research techniques for addressing construction and remediation problems in karst reservoirs

    Saša Milanović, Ljiljana Vasić (2021)
    Earth and Planetary Sciences (miscellaneous), Water Science and Technology

  • Understanding partitioning of deformation in highly arcuate orogenic systems: Inferences from the evolution of the Serbian Carpathians

    Nemanja Krstekanić, Liviu Matenco, Marinko Toljić, Oleg Mandić, Uroš Stojadinović, Ernst Willingshofer (2020)
    orogeneza, oroklini, višesmerna ekstenzija, transkurentna kretanja, Srpski Karpati
    ... standing man in black rectangle for scale) in Tithonian limestones of the Upper Getic sub- unit in the footwall of the Supragetic thrust. Black lines represent bedding. Fold axes are plotted in lower hemisphere stereoplot. Vergence of the folds indicates top to SE thrusting. Studied site Ku1. e) Normal ...
    ... transport, locally associated with NW-vergent backthrusts (structure 5 in Fig. 5), or with E-W to NW-SE oriented strike-slip faulting observed by conjugate Riedels in the main shear zone (site Ku1, structures 6 and 7 in Fig. 5). In the southern part of the studied area, the overall deformation changes ...
    ... strike-slip faults belonging to the first deformation event (e.g., structures 1 and 3 in Fig. 7), such as observed in Upper Jurassic lime- stones of the Lower Getic sub-unit (site Go1, structure 1 Figs. 7 and 9g). In this site, E-W oriented normal faults create a fault gauge breccia that contains planes with ...