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Упит dcterms_subject_txt:anotirani skupovi

469 items

  • Геомеханички мониторинг у површинској експлоатацији

    Владимир Чебашек, Александар Милутиновић, Бојан Димитријевић, Небојша Гојковић (2010)
    ... sredstva nisu prikazivana u finansijskom izveštaju.   c)      Akademija je bila učesnik u organizovanju sledećih naučnih konferencija i drugih javnih skupova:   §          Organizovana je izložba „40 godina računarstva u srpskom rudarstvu“, koja je otvorena 13.04.2010. Organizatori su Odeljenje ruda ...
    ... Konferencije MISKO 2010., 27.05.2010. (Rudarsko-geološko Odeljenje i Rudarsko-geološki fakultet) §          Akademija je bila suorganizator međunarodnog skupa SPA-CE-Net Konferencija –  regionalni razvoj,  prostorno planiranje i strateško upravljanje (Odeljenje građevinskih nauka) §          U zajednici ...
    ... 2011., Odeljenje tehnološko-metalurških nauka). §          U organizaciji međuodeljenskog Odbora za tehnološke platforme organizovan je promotivni skup NTPS forum – Nacionalne tehnološke platforme Srbije (17.02.2011), sa 107 eminentnih učesnika iz državnih struktura, privrednika i 30 članova AINS. U ...

  • The Impact Assessment of NO2 Emission from District Heating Plant on Local Air Quality, the Case of Zemun, Belgrade

    Boban Pavlović, Uroš Pantelić, Marija Živković, Dejan Ivezić (2021)
    The Belgrade district heating system relies on fossil fuels in heat production, where natural gas has the largest share of around 95% and fuel oil with around 4.4%. The Zemun heating plant is completely fueled with fuel oil. Currently, it is the largest plant that is not fueled with natural gas. The objective of this paper is to assess the impact of NO2 from the Zemun heating plant on local air quality by analyzing and comparing the concentration of ...
    NO2, Zagađenje vazduha, Kvalitet vazduh na lokalnom nivou, Model disperzije, AERMOD, Daljinsko grejanje, Beograd

  • Density maps from gravity inversion as a tool for the basin basement analysis and imaging

    Ivana Vasiljević (2023)
    Previously devised method for density mapping of the Cenozoic basin’s basement is further developed in order to improve the visualization and geological interpretation of the results. The method combines gravity-density inversion with forward modeling and requires gravity anomaly and depth-to-basement data. Although it was primarily designed for application in well-researched basins, such as Pannonian basin, method does not require further constrains. An information on density distribution in the Cenozoic sediments (from density logging or core density measurements) is important ...

  • Possibilities of retro-digitalized German-Serbian Mining Dictionary

    Biljana Lazić, Olivera Kitanović, Ivan Obradović (2019)
    U radu će biti prikazan opis procesa retrodigitalizacije dvojezičnog Nemačko-srpskog rudarskog rečnika iz 1923. godine čiji je autor rudarski inženjer Dragutin Stepanović (Степановић, 1923). Ovaj rečnik je zasnovan na skoro 4 000 leksičkih zapisa koji su prevodilački ekvivalenti ili uputnice. Umesto predgovora autor daje uvid u svoje pismo upućeno “Ministru šuma i rudnika” u kome piše o nameri da zabeleži reči koje se koriste u narodu kako bi izbegao upotrebu nemačkih reči. Iako broj odrednica nije toliko veliki, rečnik ...
    elektronska leksikografija

  • Agent-based modeling as a support to an expert-based approach: Exploring individual heating systems transition

    Boban Pavlović, Marija Živković, Dejan Ivezić (2022)
    Expert-based energy scenarios are mainly developed following assumptions of experts and, in most cases, a limited number of stakeholders. Such an approach will provide satisfactory results in centrally managed energy sectors where further decisions could be envisaged relatively precisely (electricity production/distribution, district heating systems, etc.). The same approach will provide more uncertain outcomes of future energy structure in the household sector, where decisions related to consumption, selection of energy source, or application of specific technology are made by numerous ...
    Energetska tranzicija, Grejanje domaćinstava, Individualni sistemi grejanja, Energetsko planiranje, Integrisano energetsko planiranje, ABM, LEAP, Srbija

  • Prognoza operativne efikasnosti aktivnog podzemnog rudnika zasnovana na teoriji sivih sistema

    Svetlana M. Štrbac-Savić (2016-06-10)
    Efikasnost predstavlja preduslov za opstanak svake rudarske kompanije, posebno u uslovima izuzetno konkurentnog trţišnog okruţenja kao što je to rudarska industrija. Efikasnost oznaĉava sposobnost kompanije da ispuni svoje kratkoroĉne ili dugoroĉne ciljeve. Operativna efikasnost se definiše kao odnos izmeĊu ulaznih parametara potrebnih za odvijanje proizvodnje i pokazatelja dobijenih proizvodnjom. U kontekstu rudarskog poslovanja, operativna efikasnost se odnosi na vreme potrebno da se mineralno dobro transformiše u novĉana sredstva. Visoka operativna efikasnost se postiţe kada se ostvari prava kombinacija karakteristika ...
    podzemni rudnik, operativna efikasnost, prognoza, teorija sivih sistema, stohastiĉke diferencijalne jednaĉine, simulacija
    ... familija sluĉajnih promenljivih definisana na istom prostoru verovatnoća (Ω, Σ , P). Skup I se naziva parametarski skup, obiĉno se za parametarski skup uzima interval [0, ], a realni prostor Rd (X: Ω→ Rd) je skup stanja procesa. Konaĉan niz X1,...,XN sluĉajnih promenljivih definisanih na Ω naziva ...
    ... Definisanje ulaznog vektora Skup ulaznih promenljivih se moţe podeliti na dva podskupa;      X n h EXP n h SIM n h    , gde  EXP n h oznaĉava skup koji sadrţi promenljive ĉije vrednosti su dobijene procenom struĉnjaka, a  SIM n h oznaĉava skup ĉiji su elementi promenljive definisane ...
    ... osnovu ekspertskog znanja a nekih metodama simulacije. 1.2 Nauĉni ciljevi istraţivanja U kontekstu prognoze skupa vrednosti budućih stanja ulaznih parametara kao i skupa vrednosti budućih stanja pokazatelja, ova doktorska disertacija identifikuje više ciljeva istraţivanja integrisanih u ...

  • Linearization of Input Signal as a Necessary Tool in Stochastic Modeling of Karst Groundwater

    Veljko Marinović (2021)
    Modelling of karst hydrogeological systems is a very complicated task, bearing in mind that for a deterministic model one should know the internal physical processes of precipitation transformation into discharge, while for a stochastic model nonlinear dynamic systems such as karst should be simulated by linear regression equations. Stochastic models need linearization of input time series due to often large residual in the recession period. This occur because the model is not able to absorb single rain episodes, which ...
    karstne podzemne vode, stohastičko modeliranje, transfer funkcije, pokretni prosek

  • 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

  • Classifying large strains from digital imagery: application to analogue models of lithosphere deformation

    Taco Broerse, Nemanja Krstekanić, Cor Kasbergen, Ernst Willingshofer (2021)

  • The impact of temporal variability of groundwater levels on groundwater vulnerability maps in karst terrains – a case example of the Perućac spring catchment area

    Vladimir Živanović, Igor Jemcov, Nebojša Atanacković (2022)
    Groundwater vulnerability maps represent an essential tool for protecting karst groundwater resources. Vulnerability assessment is usually based on spatial evaluation of various parameters that affect the vulnerability degree and regulate the protection role of the unsaturated zone. Most of these parameters, like soil and geology conditions, are constant and do not change during the year or over several years. In contrast, some parameters, such as the groundwater level, depend on the variability of recharge conditions. By considering the variability ...
    karst groundwater vulnerability maps, parameter changes, Perućac spring, Serbia

  • Hydrochemical indicators of groundwater flow in the area of “Čukaru Peki” Cu-Au underground mine in eastern Serbia

    Nebojša Atanacković, Vladimir Živanović, Jana Štrbački, Veselin Dragišić, Ivana Cvejić (2022)
    The physical and chemical properties of groundwater, together with the groundwater levels regime and rock hydraulic properties, are often used to understand and conceptualize the hydrogeological system. Prediction of the influence of mining works on groundwater, and vice versa, is a challenge due to significantly altered groundwater flow patterns in the raw materials exploitation areas in relation to natural conditions. Therefore, multiple parameters are assessed and monitored before and during exploitation to properly characterize and quantify the system for ...
    mine water, hydrogeology, multivariant statistics, groundwater inflow, water quality

  • Regional Strike-Slip Structures in the Internal Dinarides: Insights from the Zvornik Fault

    Ana Mladenović, Violeta Gajić, Kristijan Sokol, Dejan Prelević (2024)

  • Proširivanje upita zasnovano na leksičkim resursima

    Ranka Stanković, Ivan Obradović, Cvetana Krstev (2009)
    U radu je opisano kako se leksički resursi za srpski jezik i softverski alati, razvijeni u okviru Grupe za jezičke tehnologije Univerziteta u Beogradu, mogu koristiti za unapređenje postavljanja upita. Rezultati pretrage mogu biti značajno unapređeni korišćenjem različitih leksičkih resursa, kakvi su morfološki rečnici i semantičke mreže. Izloženi pristup može se iskoristiti i u Sistemu naučnih, tehnoloških i poslovnih informacija, jer je efikasno pretraživanje ovog dragocenog resursa, imajući u vidu njegovu heterogenost i obim, kao i preovladavajući tekstualni sadržaj, ...
    ... Београду [ДР РГФ] Proširivanje upita zasnovano na leksičkim resursima | Ranka Stanković, Ivan Obradović, Cvetana Krstev | SNTPI 09 - Naučno-stručni skup Sistem naučnih, tehnoloških i poslovnih informacija, Beograd 19. i 20. jun 2009 | 2009 | | http://dr.rgf.bg.ac.rs/s/repo/item/0001475 Дигитални р ...
    ... leksičku bazu podataka kojom se realizuje semantička mreža koncepata za određeni jezik, a zasniva se na predstavljanju svakog koncepta pomoću skupa sinonimnih parova reč- značenje. Od ovh parova gradi se osnovni element ove baze - sinset (synset, od engleskog synonymous set). Upotreba para ...
    ... omogućava da se niz zadataka sada reši i preko veba. Treba naglasiti da bi možda adekvatniji termin bio “podešavanje” upita. Naime, pored proširivanja skupa niski koje će biti uključene u upit, korisniku se pruža i mogućnost njihovog izbora, odnosno brisanja niski iz proširenog upita za koje korisnik ...

  • 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

  • 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

  • Single and multi-phase inclusions in garnets from the Lešnica alluvion in the Internal Dinarides, Serbia

    Maja Milošević, Bojan Kostić (2021)

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

    Emö Márton, Marinko Toljić, Vesna Lesić, Vesna Cvetkov (2020)

  • Evidence for Badenian marine transgression in Belgrade (Serbia)

    Filip Anđelković, Dejan Radivojević (2019)

  • Mikroelementi u kvartarnim sedimentima i lignitu Kostolačko-kovinskog ugljonosnog basena, istočna Srbija – odabrani primeri

    Bogoljub Vučković, Biljana Radovanović, Dragana Životić (2022)
    Sadržaj, distribucija i način pojavljivanja elemenata u tragovima (mikroelemenata), posebno potencijalno toksičnih i radioaktivnih elemenata u uglju, su od velikog značaja, posebno ako se koriste kao gorivo u termoelektranama (TE). Na osnovu sistematski prikupljenih podataka o elementima u tragovima u uglju, zemljištu i sedimentima, moguće je utvrditi stepen zagađenosti vazduha, zemljišta, vode, kao i negativan uticaj na zdravlje ljudi. Eksploatacija i istraživanje lignita u Kostolcu i Kovinu traje više od jednog veka, dok se sagorevanje lignita sa površinskih kopa ...
    mikroelementi, sedimenti, lignit, Kostolac

  • 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 ...