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Упит dcterms_subject_txt:groundwater management scenario

504 items

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

    Dejan Stevanović, Božo Kolonja, Ranka Stanković, Dinko Knežević, Mirjana Banković (2014)
    ... implications on the scheduled mining plan. Stochastic simulation model is used to generate multiple, equally probable scenarios of the phenomenon; each scenario reproduces the value of the sampled data, their spatial conti- nuity, represented by lognormal model, and the histogram of the distribution, replicating ...
    ... 33039. References [1] ***, International Energy Outlook 2011, US Energy Information Administration, 2011 [2] Ignjatovi}, D., et al., Coal Quality Management, Faculty of Mining and Geology, University of Belgrade, Belgrade, 2007 [3] Shih, J. S., Frey, H. C., Coal Blending Optimization under Uncertainty ...

  • Impact of river bank filtration on alluvial groundwater quality: A case study of the Velika Morava River in central Serbia

    Branislav Petrović, Vladimir Živanović (2016)
    филтрација кроз обалске и седименте речног корита, алувијални седименти, прихра- њивање подземних вода, квалитет подземних вода, Велика Морава

  • Development Of The Serbian Geological Resources Portal

    Ranka Stanković, Jelena Prodanović, Olivera Kitanović, Velizar Nikolić (2011)
    ... information system of the National park Djerdap, DRAGIŠIĆ, Monitoring groundwater resources of Serbia: Drafting the map of the vulnerability of underground water resources of Serbia, 2007-2011. (together with the Institute for water management “Jaroslav Cerni”), STEVANOVIĆ, Z. 2009., Translation of the published ...
    ... Geological Map Of The Carpatho-Balkanides Be- tween Mehadia, Oravita, Niš And Sofia 1:300000, available at http://geoliss.rgf.rs/KarpatoBalkanidi and Groundwater vulnerability map of Serbia, http://geoliss.ekoplan.gov.rs/hidro/KartaUgrPodVod Web. Several ArcMap documents based on vector data sets are published: ...
    ... represents a basis for archiv- ing and efficient handling of vector, raster and related thematic alphanumeric content in one place, as well as efficient management and usage of mineral resources.8 Google Maps API Web Services are also used for the presentation of GeolIEP resources. Namely, the initial KML file ...

  • Self-Engineering: Possibilities for Maintenance Operations in the Mining Machines Industry

    Steven Manders, Milorad Pantelić, Vladimir Milisavljević, Alberto Martinetti (2021)
    Self-engineering is a relatively new branch of knowledge that aims to understand how systems could “autonomously” re-configure or repair themselves without the intervention of the operators. A direct field of application is within the maintenance spectrum. Having systems or machines capable of self-detecting or even self-repairing could represent a game-changer, in capital asset fields such as the mining industry in particular. This paper aims to investigate the possible benefits and challenges of self-engineering / self-maintenance concerning mining machines, specifically bucket-wheel ...
    self-engineering, self-maintenance, maintenance operations, mining industry, bucket-wheel excavator, gearbox revitalization

  • Analiza pouzdanosti dozera angažovanih na površinskim kopovima RB Kolubara

    Filip Miletić, Dragan Milčić, Miloš Tanasijević, Miloš Milovančević (2021)
    U radu je izvršena uporedna analiza pouzdanosti transportnih sistema dozera koji rade na površinskim kopovima Rudarskog basena Kolubara. Period za koji je vršena analiza je prvih deset godina eksploatacije. Efikasnost tehnološkog procesa na otkopavanju korisne mineralne sirovine i otkrivke u velikoj meri zavisi od rada dozera. Iskorišćene su matematičke metode za aproksimaciju i identifikaciju zabeleženih vremena u radu, kako bi se dobili analitički pokazatelji pouzdanosti. Na ovaj način se bitno podiže kvalitet upravljanja procesom eksploatacije i održavanja mašina na ...
    dozeri, pouzdanost, kolubarski ugljeni basen
    ... mathematical methods for approximation and identification of working times in order to obtain analytical reliability indicators. In this way, the quality management of the exploatation and maintenance process is significantly raised. Keywords: dozers, reliability, kolubara mining basin 1. Uvod Rudarska industrija ...

  • 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
    ... ments of oil and gas reserves,  confusion in the interpretation of hydrodynamic measurements and reduced efficiency in the process of  reservoir management. As opposed to the approach applied in industrial research, the new approach to  correlation of oil and gas reservoirs of the “Mokrin” field is  ...
    ... erves and confusion in the interpretation of hydrodynamic measurements,  which  resulted  in  lower  efficiency  in  the  process  of  reservoir management.  The  new  interpretation  provides correlation of  lithostratigraphic units  (Figure 1a) and  reconstruction of depositional environ‐ ments, w ...

  • From post-disaster landslides inventory to open landslides data

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

  • Effectiveness Analysis of Different Bucket-wheel Excavators

    Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Miloš Tanasijević, Filip Miletić (2021)
    Coal production in open-pit lignite mines in the Republic of Serbia is performed with continuous work systems. In addition to coal production, the same systems are used for the exploitation of large quantities of overburden. According to the reliability concept, continuous systems are in linear connection. If the failure occurs in one part of the system, that will produce a downtime of the entire system. The initial and most important factor of continuous systems is the bucket-wheel excavator. It ...
    bucket-wheel excavator, open-pit coal mine, mining, multi-criteria decision methods

  • Vulnerability Assessment as a Basis for Sanitary Zone Delineation of Karst Groundwater Sources—Blederija Spring Case Study

    Vladimir Živanović, Nebojša Atanacković, Saša Stojadinović (2021)
    Примена метода рањивости подземних вода има велики значај код делинеације зона санитарне заштите карстних изворишта. Процена рањивости изворишта карстних подземних вода углавном је била базирана на Европском приступу (COST пројекат 620), који укључује анализу фактора К, који се односи на кретање подземне воде кроз засићену зону карстног система. У раду су примењене две методе за процену рањивости подземних вода - COP+K и TDM метода, како би се израдила најпогоднија карта рањивости изворишта која се може трансформисати у карту зона ...
    заштита изворишта карстних подземних вода, делинеација санитарних зона, COP+K метода, TDM метода, извориште подземних вода Бледерија

  • Rock slope stability analysis under Hoek–Brown failure criterion with different flow rules

    Svetlana Melentijević, Zoran Berisavljević, Dušan Berisavljević, Claudio Olalla Marañón (2024)
    The stability analysis of homogeneous rock slope following the Hoek–Brown failure criterion under the hypothesis of different flow rules is performed based on limit equilibrium and finite element methods. The applied failure criterion is the generalized Hoek–Brown that can be introduced as a shear/normal function in analysis applying different flow rules. The results are compared with those obtained by the application of equivalent shear strength parameters of the Mohr–Coulomb criterion, considering that this is still the most widely used ...
    Kružna klizna površ, Huk-Braunov kriterijum loma, Kriterijum popuštanja, Smičuća/normalna funkcija, Nivo napona, Verovatnoća i parametarska analiza

  • A Description of Morphological Features of Serbian: a Revision using Feature System Declaration

    Cvetana Krstev, Ranka Stanković, Vitas Duško (2010)
    In this paper we discuss some well-known morphological descriptions used in various projects and applications (most notably MULTEXT-East and Unitex) and illustrate the encountered problems on Serbian. We have spotted four groups of problems: the lack of a value for an existing category, the lack of a category, the interdependence of values and categories lacking some description, and the lack of a support for some types of categories. At the same time, various descriptions often describe exactly the same ...
    Morphology, Lexicon, lexical database, Standards for LRs
    ... ISO 24610-2:2007 Language resource management - Feature Structures – Part 2: Feature System Declaration, ISO/TC 37/SC 4. ISO. (2009) ISO 12620 Terminology and other language and content resources – Data Categories – Specification of data categories and management of a data category registry for language ...

  • Serbian Society of Geomorphologists

    Dragana Đurić, Jelena Ćalić (2019)

  • Енергетска безбедност Европске уније у светлу актуелне енергетске транзиције

    Бобан Павловић, Дејан Ивезић (2021)
    Енергетска стратегија Европске уније, која од 2015. године обухвата и циљеве у области климатских промена, тежи изградњи „енергетске уније” која потрошачима из ЕУ даје сигурну, приступачну, чисту и одрживу енергију. Енергетска политика ЕУ поставља пред себе амбициозне циљеве у погледу коришћења обновљивих извора – учешће од 32% до 2030. године. Овако опсежну и динамичну енергетску транзицију у Европи усложњава хетерогеност националних енергетских система у погледу структуре енергетског микса, нивоа увозне зависности, као и нивоа технолошког, друштвеног и економског ...
    енергетска безбедност, Европска унија, енергетски показатељи, природни гас, обновљиви извори енергије
    ... енергије из обновљивих извора последњих година даје ветар у леђа развоју различитих сценарија за развој енергетских система који у будућности не би били зависни од нафте и природног гаса. Према већини сценарија, електрификација енергетског система играће главну улогу у преласку на чистији енергетски ...

  • Tektonska analiza područja Javrorja - Jugozapadna Srbija

    Miloš Filipović (2024)
    U ovom radu autor primenom različitih metodoloških postupaka i različitih podataka ima zadatak da što detaljnije prikaže složenu i polifaznu tektonsku građu evoluciju ovog dela Dinarida i Srbije. Tektonska analiza podrazumeva statističku obradu strukturnih podataka. Teren pokrivaju dve tektonske jedinice Istočnobosansko- durmitorska jedinica i Zapadno- vardarski ofioliti. Zasebno su anlizirani i diskutovani rupturni i plikativni sklop. U okviru analize rupturnog sklopa dat je i kratak prikaz neotektonskog sklopa sa izrađenim kartama enrgije reljefa i karte I trenda energije reljefa. ...
    Interni Dinaridi, stočnobosansko-durmitorska jedinica, ofioliti, strukturna analiza, tektonika
    ... Dinarida. Alternativa i aktuelno najpopularniji model je takozvani supra-subdukcioni (strukturno, svi obdukovani ofioliti su ofioliti povlatne ploče) scenario po kome je geneza svih kasnije obdukovanih ofiolita rukovođena dehidratacijom subdukujuće ploče, što Je praćeno metasomatizmom omotača, stapanjem ...
    ... od srednjeokeankog grebena, generisala je supra-subdukcione tipove magme koji ispoljavaju toleitski i boninitski karakter (ostrvski luk). Ovaj scenario koji je primenjen na Mirdita ofiolite u Albaniji jasno razlikuje dva odvojena pojasa ultramafita, zapadni ı istočni, što bi se potencijalno moglo ...

  • From DELA Based Dictionary to Leximirka Lexical Database

    Biljana Lazić, Mihailo Škorić (2020)
    In this paper, we will present an approach in transforming Serbian language Morphological dictionaries from a DELA text format to a lexical database dubbed Leximirka. Considering the benefits of storing data within a database when compared to storing them in textual documents, we will outline some of the functionality that the database has made possible. We will also show how hand-made rules that use category labels lexical entries are marked with can be used to link lexical entries. ...
    Morfološki rečnici, jezički resursi, Leksimirka
    ... standardized framework for recording linguistic in- formation in computer lexicons and is based on the Standard ISO 24613: 2008 (Language Resource Management - Lexical Markup Framework - LMF). LMF is designed for lexicons specially designed for Natural Language Pro- cessing and Machine-Readable Dictionaries ...
    ... describes lexical entry (morphological, semantic and ontological description). 3 Transition to lexical database 3.1 Motivation Automatisation of the management of Serbian Morphological Dictionar- ies started with the implementation of the Workstation for Lexical Resources WS4LR (Krstev et al., 2006). This ...
    ... DELAS dictionaries. More about these procedures can be read in the paper (Stanković et al., 2018). Relations are defined through the relationship management segment of the Leximirka application, by filling in general information and by setting a set of rules that more closely define those relations. The ...

  • Results of Recent Monitoring Activities on Landslide Umka, Belgrade, Serbia—IPL 181

    Biljana Abolmasov, Uroš Đurić, Jovan Popović, Marko Pejić, Mileva Samardžić Petrović, Nenad Brodić (2021)
    Klizišta, Monitoring, GNSS, Geodetska osmatranja, UAV snimci, PSInSAR
    ... Research Center of Geology (HRCG), Sapporo, Japan Local Organizing Committee Shinro Abe, Okuyama Boring Co., Ltd. Kiminori Araiba, Fire and Disaster Management College Shiho Asano, Forestry and Forest Products Research Institute Has Baator, Asia Air Survey Co., Ltd. Organizational Structure of the Fifth ...
    ... Research Institute Go Sato, Teikyo Heisei University Nobuyuki Shibasaki, Nippon Koei Co., Ltd. Nobuo Sugiura, Japan Association for Slope Disaster Management Kaoru Takara, Kyoto University Keisuke Takimoto, GODAI KAIHATSU Corporation Yoko Tomita, Public Works Research Institute Ikuo Towhata, The Japanese ...
    ... analysing: (1) spatial patterns and relationships between landslide and element at risk, (2) proposing quantitative risk model and (3) landslide risk management, according to the Project goals. Those research objectives will be also part of IPL248 joint Project research between Univeristy of Belgrade and ...

  • Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria

    Vladimir Krivošić, Luka Crnogorac, Rade Tokalić (2024)
    The choice of adequate mining machines is one of the most complex problems in the underground exploitation of mineral raw materials. The weight of such a decision is reflected in the high prices of these machines and the occurrence of even greater costs during their use if their choice was wrongly conceived. There are numerous examples from practice in which such decisions were made solely on the basis of comparing the prices of machines, without considering any of the ...
    utovarno-transportna mehanizacija, izbor, TOPSIS, entropija, standardna devijacija, težina kriterijuma

  • Развој модела употребног квалитета помоћне механизације на површинским коповима лигнита

    Драгица Јагодић Крунић (2021)
    Тренутно стање помоћне механизације на површинским коповима лигнита је незадовољавајуће узроковано пре свега старошћу и неблаговременом заменом машима услед чега је расположивост недовољна а трошкови експлоатације и одржавања високи. Тренутно стање и захтеви који се постављају пред ове машине указују на неопходност оптимизације процеса управљања помоћном механизацијом. Одређивање оптималног времена замене и преосталих могућности је најодговорнији управљачки задатак који треба да буде заснован на свеобухватном сагледавању економских, техничких и других узрочно последичних веза. Са економског аспекта гледано треба одржавати ...
    помоћна механизација, употребни квалитет, ефективност, расположивост, сигурност функционисања, ризик, трошкови животног циклуса, фази логика, Монте Карло метода
    ... Electrotechnical Commission, IEC 60300-3-11:1999, Dependability management - Part 3-11: Application guide - Reliability centred maintenance, 1999. [42] International Electrotechnical Commission, IEC 60300-3-11:2009, Dependability management - Part 3-11: Application guide - Reliability centred maintenance ...
    ... Prentice Hall Inc., New Jersey, 1981. [51] International Electrotechnical Commission, IEC 60300-1:1993, Dependability management - Part 1: Dependability programme management, 1993. [52] Институт за стандардизацију Србије, SRPS IEC 300-1/ISO 9000-4:1995, Управљање сигурношћу функционисања – Део ...
    ... програмом сигурности функционисања, 1995. [53] International Electrotechnical Commission, IEC 60300-1:2003, Dependability management - Part 1: Dependability management systems, 2003. [54] Институт за стандардизацију Србије, SRPS EN 60300-1:2008, Менаџмент сигурношћу функционисања – Део 1: ...

  • Structural characterization of traditional pottery produced from local clay, Rujište (Ražanj, Central Serbia), in an effort to preserve its geoheritage

    Maja Milošević, Biljana Đorđević, Alena Zdravković (2021)
    ... Plovdiv  Intergeoresource Ltd., Sofia Partners: Credo Bonum Gallery; National Academy of Art Company in charge of registration:  Congress Management and Events Ltd., Sofia Printing House: Bulged, Sofia 1505 Editors: Ruslan I. Kostov, Radostina Atanassova ISBN 978-954-92875-6-1 © ...

  • Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović (2017)
    Large collections of textual documents represent an example of big data that requires the solution of three basic problems: the representation of documents, the representation of information needs and the matching of the two representations. This paper outlines the introduction of document indexing as a possible solution to document representation. Documents within a large textual database developed for geological projects in the Republic of Serbia for many years were indexed using methods developed within digital humanities: bag-of-words and named ...
    ... national parks, map of endangered groundwater bodies, geo-morphological map, map of exploration-mining fields, while the most prominent multimedia content are the gallery of photos and movies, geoheritage, BEWARE GIS web portal for interactive landslide data management, hazard and risk analysis, and jeweler ...
    ... performed the best. 1 Introduction Advancements in database technology provide nowadays for management of large quantities of heterogeneous data. However, besides this engineering challenge— efficient management of such data, the “exploding world of Big Data” poses yet another, semantic challenge—finding ...
    ... rapidly in the last decades, it was not accompanied by an adequate development and implementation of modern information technologies. Until recently, management of this growing body of geological documentation relied on traditional methods based on libraries and archives, which often made the task of obtaining ...