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Упит dcterms_subject_txt:Long-term planning methodology

342 items

  • Indexing of textual databases based on lexical resources: A case study for Serbian

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović (2015)
    In this paper we describe an approach to improvement of information retrieval results for large textual databases by pre-indexing documents using bag-of-words and Named Entity Recognition. The approach was applied on a database of geological projects financed by the Republic of Serbia in the last half century. Each document within this database is described by metadata, consisting of several fields such as title, domain, keywords, abstract, geographical location and the like. A bag of words was produced from these ...
    ... Determination of term weights is a complex process and there are numerous models, the most used being: idf based on the term frequency in the document, probabilistic, which includes in addition relevance weights, tf idf which takes into account the number of documents in which the term appears, tfc tfc ...
    ... relative frequency tfij for each term Tij in a text Di as nij/li where li is the length of the text in the number of simple words; 6. Calculating document frequency dfj as the number of documents in the collection in which the term Tj appears, and the acceptable indicator of term value as a document discriminator ...
    ... database for digital archiving of geologic data, and provide a modern and effective in- formation basis for carrying out all activities related to planning, design and decision-making in the field of geology. Within the project a web portal3 was established that allows quick and easy access to geological ...

  • An Italian-Serbian Sentence Aligned Parallel Literary Corpus

    Saša Moderc, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić (2023)
    This article presents the construction and relevance of an Italian-Serbian sentence-aligned parallel corpus, delving into the aligned sentences in order to facilitate effective translation between the two languages. The parallel corpus serves as a valuable resource for language experts, researchers, and language enthusiasts, fostering a deeper understanding of linguistic nuances and cultural expressions. By bridging the gap between Serbian and Italian, this corpus opens new avenues for cross-cultural communication and collaboration, and ultimately contributes to the improvement of language-related ...
    Aligned corpus, parallel corpus, Serbian, Italian, literature

  • Building Terminological Resources in an e-Learning Environment

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... web based integration of multiple tutors. However, realizing that the transformation of Moodle glossaries to proper language resources is a long term goal, we concluded that at least the development of Moodle glossaries in parallel with RudOnto should be terminated. We decided to continue developing ...
    ... consists of the basic term used for this concept, its synonyms (none in this case), and its definition. The smaller panel illustrates yet another feature of RudOnto. Namely, for each term, such a panel can be invoked, containing all available translational equivalents of a term in other languages. ...
    ... concepts are realized by the RelacijeTermina class. Translational equivalents of a term in one or more languages in the UML model are realized by the MultijezičkiLeks class. As for the source from which a concept or a term has been taken (together with their meaning), it is registered by the Bibliografija ...

  • Automatic construction of a morphological dictionary of multi-word units

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Duško Vitas, Miloš Utvić (2010)
    The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...
    electronic dictionary, Serbian, morphology, inflection, multiwordn units, noun phrases, query expansion
    ... been developing morphological electronic dictionaries of Serbian for natural language processing for many years now. Our e-dictionaries follow the methodology and format known as DELAS/DELAF, which is presented for French in [1]4. Serbian e-dictionaries of simple forms have reached a consid- erable size: ...
    ... reason have to be described and processed as a unit. 4 A comprehensive bibliography on e-dictionaries for other languages developed using the same methodology is given at http://www-igm.univ-mlv.fr/~unitex/. 2 Authors Suppressed Due to Excessive Length For some productive classes of MWUs, like different ...
    ... mentions only one system, FASTR, that supports automated MWU lexicon creation [7]. Since this system is based on an approach very different from DELA methodology, we developed our own procedure for automatic construction of DELAC entries from a given list of MWUs. For an item such as civilni vojni rok this ...

  • Investigation of Co0.9Ho0.1MoO4 Nanopowders Obtained by Glycine Nitrate Procedure

    Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica (2023)
    ... and effective method for controlling the composition and morphology of CoooHooMoOu, as well as a possible new approach in inorganic synthesis methodology. During photocatalytic testing, the studied nanoparticle powder indicated a potentially i promising solution in photocatalytic processes toward ...

  • Geotehnički efekti razaranja komunalnog otpada različitim postupcima zbijanja

    Jovana M. Janković Pantić (2022)
    Odlaganje otpada na komunalne deponije predstavlja osnovni način zbrinjavanja otpada u Srbiji. Kako bi se prostor za deponovanje materijala racionalno koristio potrebno ga je svakodnevno zbijati sa unapred definisanom količinom vode koja se dodaje. Dobro zbijeni komunalni otpad zauzima manju zapreminu i omogućuje sigurnije skladištenje, pa je korisno prethodno laboratorijski odrediti parametre zbijanja: maksimalnu suvu zapreminsku težinu (dmax) i optimalnu vlažnost (wopt). U Srbiji do sada nisu određivani parametri zbijanja, dok je u svetu primenjivana standardna metoda (Proktorov opit) ...
    komunalna deponija, zbijanje, Proktorov opit, malj sa šiljcima, koeficijent razaranja

  • 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
    ... the annual report [17]. The AERS’s methodology is based on the analysis of a typical flat of 60 m2 that is heated to 20°C for 16 hours a day, 180 days a year. The required specific heat for heating of 150 kWh/m2 has been adopted, so according to this methodology, it is necessary to provide 9000 kWh ...
    ... using the global warming potential (GWP) index. The study also aims to identify the LC phases that contribute the most to the GWP of each HS. 2 METHODOLOGY Even though wood is considered a cleaner energy source than fossil fuels, it is important to evaluate the interactions with the environment over ...

  • Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit

    Sanja Bajić, Dragoljub Bajić, Branko Glušćević, Radmila Gaćina (2023)

  • Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine

    Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović (2019)
    Availability is one of the most used terms in maintainability engineering. This concept is used to denote: The quality of service of an engineering system, i.e., machines, weak points’ analysis, asset management, as well as making decisions in the process of life cycle management. Availability is an overall indicator and contains partial indicators that are oriented towards reliability, maintenance, and logistical support. Availability presents a variable value and changes in time and space. Usually, availability is shown as the ...
    raspoloživost, fazi teorija, AHP višekriterijumska analiza, eksperska ocena, buldozer
    ... and convenience of the maintenance function. Functional safety is a common term used to describe availability and the factors that affect it: Reliability, convenience of maintenance, and maintenance support level. The term availability is used to denote the degree of functional safety. Availability ...
    ... and convenience of the maintenance function. Functional safety is a common term used to describe availability and the factors that affect it: Reliability, convenience of maintenance, and maintenance support level. The term availability is used to denote the degree of functional safety. Availability ...
    ... maintenance work itself, as well as to the appropriate technical, logistical, and administrative waiting times. This requires appropriate efforts in planning and creating a realistic maintenance concept, a critical analysis of maintenance plans (maintenance levels, identification of needs, goals), defining ...

  • Дефинисање механичких својстава алтерисаног стенског материјала лабораторијским методама

    Вељко М. Рупар (2022)
    Основни циљ овог рада је да представи методологију одређивања механичких својстава хетерогеног стенског масива који изграђују дацит (Д) и алтерисани дацит (АД), где је уочена је зона постепеног преласка од алтерисаног дацита до дацита. Механичка својства стенског масива у тој зони утврђена су на основу лабораторијских испитивања једноосне и троосне чврстоће на притисак стенског материјала композитних узорака. Композитни узорци су се састојали од дискова стенског материјала, при чему је висина дискова h дефинисала различити процентуални удео појединог стенског материјала, ...
    дацит, алтерисани дацит, једноосна чврстоћа на притисак, троосна чврстоћа на притисак, композитни узорци, механика стена, стабилност косина

  • Model of the Geomagnetic reference field of the Republic of Serbia

    Spomenko J. Mihajlović, Vesna Cvetkov (2024)

  • Development of A Business Intelligence Tool For Accident Analysis in Mines

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Uroš Pantelić (2015)
    ... implemented, such as diagnostic and prognostic decision support systems, computerized maintenance management systems (CMMS) and enterprise resource planning systems (ERP). Similar to other engineering disciplines the application of ICT in mining engineering results in different software components ...
    ... Management Information System. In Proceedings of the http://dx.doi.org/10.1016/j.eswa.2008.02.047 7 Fifteenth International Symposium on Mine Planning and Equipment Selection, Vol. 1 (Cardu M, Ed), Torino, Italy, 20-22. September 2006, pp. 436-441. ISBN 88 901342 4 0 [11] Stanković, R., Obradović ...

  • Concepts for Improving Machine Learning Based Landslide Assessment

    Miloš Marjanović, Mileva Samardžić Petrović, Biljana Abolmasov, Uroš Đurić (2019)
    Katastar klizišta, Podložnost, Hazard, Mašinsko učenje, Uzorkovanje, Validacija

  • Synergy between the mineral deposit exploration and geothermal resources assessment on the example of "Valjevo" boron and lithium deposit in Serbia

    Nebojša Atanacković, Vladimir Živanović, Ana Vranješ, Sava Magazinović, Marinko Toljić, Ana Arifović, Branislav Potić (2023)
    Exploration of mineral deposits involves a collection of vast data sets on geological characteristics of the area. These data can largely contribute to the assessment of the geothermal potential, which can lead to an increase in the share of geothermal resources in the energy mix of the extractive industry and the local community. On the example of the "Valjevo" B-Li deposit, data on structural settings and previous hydrogeological investigations were combined with the results of resource drilling and geophysical ...
    Geothermal assessment, Mineral deposit exploration, Geothermal potential, Serbia
    ... indicators. Data (point, line, polygon, raster) were spatially analyzed in a GIS environment. Vranješ et al. [8] provide more details on applied methodology. 4. RESULTS AND DISCUSSION 4.1. Basin basement geology Modelling of the lithostratigraphy, structural settings and morphology of the basement ...
    ... expected groundwater temperatures in the analysed reservoir domain are up to 65 "C, while the average temperature is estimated at 50 "C. The applied methodology allows spatial identification of the perspective zones for further research. The demonstrated approach highlights the importance of consideration ...

  • Comparative analysis of correlation coefficients in mineralogical and geophysical data from the mine tailing site “Rudnik” (Serbia)

    Vesna Cvetkov, Filip Arnaut, Dragana Životić (2024)

  • Legal framework for recultivation of degraded areas caused by mining exploitation

    Radmila Gaćina (2023)
    Prilikom površinske i podzemne eksploatacije uglja eksploatacioni sistemi oštećuju veće ili manje površine zemljišta. Iskustva pokazuju da su oštećenja zemljišta znatno veća kod površinske eksploatacije, gde je prostora degradiran ne samo u konturi rudnika i okoline, već se promene takođe dešavaju u prirodnom okruženju. U članku su predstavljeni rezultati studije zakonskih okvira rekultivacije u nekim zemljama sveta i u Srbiji. Praktično iskustvo rekultivacije pokazalo je da iskorišćenje i devastacija tokom rudarske aktivnosti predstavljaju opasnost ne samo za pogođena ...
    rekultivacija, melioracija, otkopavanje uglja, zakonska regulativa
    ... between short-term and long-term interest and respect the interests of all parties. Figure 1 Phases of land reclamation Legal framework in the field of recultivation of degraded areas ... 29 2 TERMS - RECULTIVATION, RECLAMATION, RESTORATION, REVITALISATION Although the term reclamation appeared ...
    ... rehabilitate degraded land date back to the end of the 19th century, note in Germany. The term "damaged land" means all those surfaces that have been affected directly or indirectly by a specific activity. The term devastated area is also usually used, which denotes a lifeless area after use, without ...
    ... national mining law, BBergG (1980) - bringing together all mining operations and the general environmental laws to speed up and simplify the complex planning process. The law in Serbia defines that the Exploitation Holder is obliged to recultivate the land in accordance with the technical project of ...

  • Razvoj integralnog modela za optimizaciju diskontinualnog sistema proizvodnje na površinskim kopovima nemetala

    Miodrag Čelebić (2024)
    Izbor optimalne mehanizacije u diskontinualnom sistemu transporta je jedna od najvažnijih odluka koju treba donijeti prilikom projektovanja površinskih kopova. Pri izboru optimalne mehanizacije, uticaj ima veliki broj faktora, kako prirodnih – geoloških i ekoloških, tako i tehničkih, ekonomskih i socijanih. Neki od njih se mogu izraziti numerički, u određenim mijernim jedinicama, a neki opisno, lingvističkim varijablama, shodno uslovima koji vladaju na rudnim ležištima, a koje karakterišu visok stepen neizvjesnosti i neodređenosti kako prilikom istraživanja, tako i tokom procesa eksploatacije ...
    izbor mehanizacije, tehnologija eksploatacije, diskontinualani sistem, ekspertsko odlučivanje, lingvističke varijable, MCDM, FAHP

  • Mitigating hydrate formation in onshore gas wells: A case study on optimization techniques and prevention

    Milica Ješić, Bojan Martinović, Stefan Stančić, Miroslav Crnogorac, Dušan Danilović (2023)
    Gas wells, particularly those situated onshore, play a vital role in the global energy sector by supplying a significant portion of natural gas. However, operational challenges, notably gas hydrate formation, pose substantial issues, leading to complications such as flowline blockages and unexpected well shutdowns. Gas hydrates, crystalline structures resembling ice, ...
    Gas Well, Gas Hydrate Formation, Well Modeling, Well Performance Optimization, Choke Position Adjustments, Methanol Injection

  • Fuzzy expert analysis of the severity of mining machinery failure

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    Mining machinery failure is almost an everyday occurrence. Usually the failures bare certain consequences, which require additional financial costs to repair and restore the system to its operational state. The consequences are viewed through negative and damaging effects a failure has on the machine, health and safety of the employees, work environment, and on the environment. The removal of the consequences of the failure requires additional financial investment, which has a negative impact on the company’s business. In order ...
    Severity of failure, Severity of failure assessment, Mining machinery, Fuzzy sets, Fuzzy logic

  • Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders

    Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica (2023)
    ... for controlling: the composition and morphology of Cop.Hoo,, MoOu is presented in this paper, as well as a potentially new approach in the methodology of inorganic synthesis. During photocatalytic · testing nanostructured material CopoHoo,MoOu indicated the possibility of a promising solution ...