Претрага

Упит dcterms_subject_txt:method of least squares

2838 items

  • 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
    ... tendency and similarity of evaluations of the quality of service in Liebherr PR 752 (PR 754) and Caterpillar D8R (mid-level) machine types. Stalowa Wola TD25H type is at a slightly lower level of the quality of service. The model has been tested by Monte Carlo method. The results of the fuzzy synthetic ...
    ... machinery, quality of service, effectiveness, availability, dependability, risk, life cycle cost, fuzzy logic, Monte Carlo method. Scientific field: Mining engineering Narrow scientific field: Мechanization in mining Surface exploitation of mineral deposits ...
    ... факултет Београд, 2010. https://www.iec.ch/ 246 [83] Lefayet Sultan Lipol and Jahirul Haq, Risk Analysis Method: FMEA/FMECA in the Organizations, International Journal of Basic & Applied Sciences IJBAS-IJENS Vol: 11 No: 05 (49-57), 2011, IJENS. [84] US Army, Procedure for Performing ...

  • Availability as a dimension of energy security in the Republic of Serbia

    Boban Pavlović, Dejan Ivezić (2016)
    There is a range of modern approaches and models in literature for the evaluation and determination of energy security, which are based on different parameters and indicators. For most of them, a common characteristic is emphasizing the avail ability of energy, as an important dimension for ensuring energy security. In this paper, concise overview of Serbian energy sectors is given and appropriate energy indicators are defined and determined. Selected indicators provide insight into the main components that characterize availability ...
    raspoloživost energije, energetski indikatori, energetska bezbednost
    ... Dimension of Energy Security in the Republic of Serbia 330 THERMAL SCIENCE: Year 2017, Vol. 21, No. 1A, pp. 323-333 ( )2b TPESTM 0.14 toe/1000 US$ Unit of GDP PPP = (18) The determination of significance of availability components by AHP method The aim of the application of AHP method is to detect ...
    ... minimum stocks of crude oil and/or petroleum products corresponding, at the very least, to 90 days of average daily net imports or 61 days of average daily inland consumption, whichever of the two quan- tities is greater. If obligations from this Directive were applied on the case of Serbia, according ...
    ... (20) Obtained values of the criteria wi, as a results of application of AHP method are given in tab. 6. They indicate that SS, defined as ability of energy system to rely on its own reserves Pavlović, B., et al.: Availability as a Dimension of Energy Security in the Republic of Serbia THERMAL SCIENCE: ...

  • An intelligent hybrid system for surface coal mine safety analysis

    Nikola Lilić, Ivan Obradović, Aleksandar Cvjetić (2010)

  • Resource-based WordNet Augmentation and Enrichment

    Ranka Stanković, Miljana Mladenović, Ivan Obradović, Marko Vitas, Cvetana Krstev (2018)
    In this paper we present an approach to support production of synsets for SerbianWordNet(SerWN)byadjustingPrincetonWordNet(PWN)synsetsusing several bilingual English-Serbian resources. PWN synset definitions were automatically translated and post-edited, if needed, while candidate literals for Serbian synsets were obtained automatically from a list of translational equivalents compiled form bilingual resources. Preliminary results obtained from a setof1248selectedPWNsynsetsshowthattheproducedSerbiansynsetscontain 4024 literals, out of which 2278 were offered by the system we present in this paper, whereas experts added the remaining 1746. Approximately one half of ...
    WordNet, bilingual resources, term alignment, parallel lists
    ... non-English wordnets are concerned, one of the common approaches to wordnet enhancement is the use of a developed wordnet (most commonly PWN) as the basic source for enrichment, and a method for aligning the synsets of the two wordnets, such as the ILI. Automatic alignment of synsets belonging to different ...
    ... ness of the method is strongly correlated with the comprehensiveness of the resource used in the alignment process (Hristea, 2007). Different methods and resources can be used for alignment. One of the common approaches is to take PWN as the source for alignment, and a bilingual dictionary of English ...
    ... tend to be more relevant. There were 124,887 literals within the non-adjusted PWN synsets, out of which 22,645 had at least one corresponding Serbian literal in the compiled parallel list. Src Source No of pairs Mapped with PWN Percentage L Parallel list 10542 9071 86 B Biblio 17761 4296 24 P Psih ...

  • 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
    ... Duško Vitas3, and Miloš Utvić1 1 Faculty of Philology, University of Belgrade 2 Faculty of Mining and Geology, University of Belgrade 3 Faculty of Mathematics, University of Belgrade Abstract. The development of a comprehensive morphological dictio- nary of multi-word units for Serbian is a very demanding ...
    ... number of combining conditions. As for the inflection of constituent simple words, it relies completely on FSTs for the inflection of simple words. This way, the generation of all inflected forms with Multiflex is performed with two types of FSTs: for inflection of simple words and for inflection of MWUs ...
    ... 3 Description of the Strategy The purpose of the analysis performed in the first step was not to produce a strategy for construction of MWU lemmas automatically — it was rather used as a reference during the manual production of a strategy in the form of XML documents. The schema of these documents ...

  • Integrative GHG Assessment in Oil and Gas Industry

    Aleksandar Mirković, Marija Živković, Stevan Đenadić, Darja Lubarda, Chinedu Anyanwa (2023)
    Reducing greenhouse gas emissions is one of the main targets of national strategies in European countries. As a main contributor to emissions, the energy sector is recognized as the most promising to apply measures and actions aimed to decrease GHG emissions. The Oil and Gas industry as a significant contributor to global greenhouse gas emissions is facing a growing need for estimating, mitigating, and reducing the impact of their operations on the atmosphere to stay competitive in a newly ...
    energetska tranzicija, gasovi staklene baste, industrija, nafta i gas
    ... determining amounts of emitted GHG depends on available input data. Depending on the availability of data, thcir consistency, and time serics different tiecr approaches arc applied. A ticr represents a level of methodological complexity. Tier 1 Approach Ticr I represents the least complex approach ...
    ... level of living standard have beecn accompanied by increased demand for various forms of cnergy. Most of the world's encrgy is still derived from fossil fuels. In 2021 the share of fossil fuels amounts 80.9%, while the share of biofuels and waste amounts 9.4%, indicating that more than 90% of annually ...
    ... were the source for about 65% of total fossil methanc emissions or onc-quarter of global anthropogenic methane emissions. Recent studies had in focus evaluation of the effects of the implementation of various encrgy efficicncy mcasures regarding, the optimal operation of equipment [13], shifting to ...

  • An arid phase in the Internal Dinarides during the early to middle Miocene: Inferences from Mg-clays in the Pranjani Basin (Serbia)

    N. Andrić-Tomašević, V. Simić, O. Mandic, D. Životić, M. Suárez, E. García-Romero (2020)
    Paleontology,Earth-Surface Processes,Ecology, Evolution, Behavior and Systematics,Oceanography

  • 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

  • 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
    ... 1982 images were left for further processing. Forward image overlap was at least 90% and overlap between flight path rows was around 60%. UAV was flying at height of 80 m above take-off station achieving average pixel size of 2.2 cm. Seven flights were performed in order to cover the entire landslide ...
    ... surface modeling and monitoring. Many advantages of UAV-based remote sensing for landslide characterization and monitoring were disccusesed in Colomina and Molina (2014), Balek and Blahut (2017), Peternel et al. (2017), Rossi et al. (2018). SfM method can provide accurate mul- titemporal and spatial ...
    ... system. The objective of this paper is to present the results of recent monitoring activities conducted from 2014 to 2019 as a part of IPL 181 Project report. Study Area The study area is located on the right bank of the Sava river, 25 km South-west of Belgrade, the capital of Serbia. Extensive ...

  • Age of the Jurassic hemipelagic sediments from the Ljubiš area (Zlatibor Mt., SW Serbia)

    Nikita Bragin, Nevenka Đerić (2020)
    Radiolaria, Dinarides, Jurassic, stratigraphy, Serbia
    ... Formation on the western slope of Vis Mountain. According to GAWLICK et al. (2017) the preserved part of the Ljubiš basin represents a more proximal part of the basin and the thickness of this basin fill is at least 400 m. In the currently uninvestigated most proximal parts of this basin the authors expected ...
    ... sampled and processed by the traditional method. Small (100 g) pieces of rocks were etched by diluted (5-10%) hydrofluo­ ric acid (HF) for 12 hours. Then the residue was washed with wa­ ter and dried. Figure 3. The main Jurassic lithostratigraphic units of the Inner Dinarides (GAW LICK et al., 2017) ...
    ... Theocapsomella sp. R Figure 4. A lithological column of the lower part of the Djokov Potok section (Ljubiš Formation). The numbers of units are shown to the left of the column. Positions of samples with radiolarians are indicated on the right of the column by arrows. 1 – radiolarites and mudstones; ...

  • 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

  • Serbian NER&Beyond: The Archaic and the Modern Intertwinned

    Branislava Šandrih Todorović, Cvetana Krstev, Ranka Stanković, Milica Ikonić Nešić (2021)
    U ovom radu predstavljamo srpski književni korpus koji se razvija pod okriljem COST Akcije „Distant Reading for European Literary History” CA16204. Koristeći ovaj korpus romana napisanih pre više od jednog veka, razvili smo i učinili javno dostupnim Sistem za prepoznavanje imenovanih entiteta (NER) obučen da prepozna 7 različitih tipova imenovanih entiteta, sa konvolucionom neuronskom mrežom (CNN), koja ima F1 rezultat od ≈91% na test skupu podataka. Ovaj model je dalje ocenjen na posebnom skupu podataka za evaluaciju. Završavamo poređenje ...
    ... authors (Frontini et al., 2020). The last version of the ELTeC (v. 1.1.0) was released in April 2021.6 It contained 14 5spaCy, https://spacy.io/ 6ELTeC (Distant Reading for European Literary Hi- language sub-collections each with at least 50 novels, while 8 collections contained targeted 100 novels per language ...
    ... University of Belgrade Faculty of Philology branislava.sandrih@fil.bg.ac.rs Ranka Stanković University of Belgrade Faculty of Mining and Geology ranka.stankovic@rgf.bg.ac.rs Cvetana Krstev University of Belgrade Faculty of Philology cvetana@matf.bg.ac.rs Milica Ikonić Nešić University of Belgrade ...
    ... the scope of the COST action CA16204 “Distant Reading for European Literary History”. We thank the stu- dents of the Department of Library and Infor- mation Sciences, Faculty of Philology, master students of Social Sciences and Computing at Multidisciplinary Graduate Studies and PhD students of Intelligent ...

  • Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal

    Sanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović (2018)
    glukoza, fruktoza, аktivni ugalj, hidrotermalni tretman, aktivacija hidroksida, teški metali, metilen plavo
    ... Ristović, I.; Djokić, J. Application of a Method for intelligent multi-criteria analysis of the environmental impact of tailing ponds in northern Kosovo and Metohija. Energies 2016, 9, 935. [CrossRef] 5. Institute IMS ad. Certificate of Determining the Nature of Waste CPO No. 016/07 (2007); Institute ...
    ... purification and treatment which would prevent or at least minimize the pouring of the wastewater from tailings in the rivers and reduce negative effects on the environment. Minerals 2018, 8, 246 3 of 21 Besides heavy metals, the contamination of waters with organic pollutants, such as dyes is very ...
    ... (SBET) of obtained samples was calculated by the law of BET (Brunauer, Emmet, Teller) theory [41] from the best linear fit in the region p/po < 0.01 (p and po represent the equilibrium and saturation pressures of nitrogen at a fixed temperature). Using BJH (Barrett, Joyner and Halenda) method [41], for ...

  • Flood protection and water utilization of karst poljes: example of Gatačko Polje, Eastern Herzegovina

    Tina Dašić, Ljiljana Vasić (2020)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry,Global and Planetary Change

  • Preparation of Multimedia Document “YU Rock Scene”

    Milena Obradović, Aleksandra Arsenijević, Mihailo Škorić (2017)
    SUMMARY: This study will present the preparation process of a multimedia document entitled YU ROCK SCENE in which participants were senior students of undergraduate studies of the Department of Library and Information Science at the University of Belgrade Faculty of Philology during the academic year 2014/2015, as a part of the subject Multimedia Documents. This study gives an overview of the historical development of rock and roll in the territory of the former Yugoslavia, rock scene in Yugoslav republics, ...
    multimedia document, library science, information science, rock and roll, music, Yugoslavia
    ... development of rock music in Macedonia and breakthrough of young and unrecognized rock bands by broadcasting music from the territory of the Former Yugoslavia and the world- famous rock hits of the time. 2.6 YU Rock Scene in Montenegro Out of all countries of the former Yugoslavia, rock music was least developed ...
    ... tion process of the multimedia document entitled “YU ROCK SCENE” in which participants were senior students of undergraduate studies of the De- partment of Library and Information Science at the University of Belgrade, Faculty of Philology during the academic year 2014/2015, as a part of the sub- ject ...
    ... study gives an overview of the historical development of rock and roll in the territory of the former Yugoslavia, rock scene in Yugoslav republics, as well as the influence of rock music on other arts and media. Special at- tention was given to the technical implementation of the project, including stages ...

  • Digital Library From A Domain Of Criminalistics As A Foundation For A Forensic Text Analysis

    Dalibor Vorkapić, Aleksandra Tomašević, Miljana Mladenović, Ranka Stanković, Nikola Vulović (2017)
    U ovom radu predstavljen je model koji omogućava prikupljanje, pripremu, opis metapodataka, upravljanje i eksploataciju, uključujući pretragu punog teksta dokumenata iz domena kriminalistike napisanih na srpskom jeziku. Predloženi pristup primenjuje se na veb portalu koji sakuplja različite tekstove nastale iz časopisa Akademije za kriminalistiku i policijske studije, Krivičnog zakona Srbije, konferencija „Tara“ i „Reiss“, kao i iz nekih doktorskih disertacija vezanih za ovu oblast istraživanje. Nakon obrade teksta, korpus koji sadrži preko 5500 stranica običnog teksta, kreiran je i ...
    Omeka, Wordnet, pretraga punog teksta, morfološka i semantička pretraga teksta, proširenje upita
    ... Has Version, Instructional Method, Is Format Of, Is Part Of, Is Referenced By, Is Replaced By, Is Required By, Date Issued, Is Version Of, License, Mediator, Medium, Date Modified, Provenance, References, Replaces, Requires, Rights Holder, Spatial Coverage, Table Of Contents, Temporal Coverage ...
    ... resource and the geographic address. This search method searches only on the basis of the given word, without changing the form of words. Extended search includes morphological and semantic search. Morphological search includes search of all inflected forms of specified word that retrieve from SrpMD (Serbian ...
    ... relevant to the relationship between them. Suicide notes generally have sentences alluding to the act of killing oneself, or the method of suicide that was undertaken. 6 The contents of a suicide note could be intended to make the addressee suffer or feel guilt. Genuine suicide letters are short, typically ...

  • Модел померања терена услед утицаја рударских радова на основу радарских сателитских снимака

    Зоран Гојковић (2023)
    Површински коп, као систем који обезбеђује енергетску стабилност или снабдевање сировинама које су од изузетне важности за привредни напредак, својим функционисањем утиче на околна насељена места. Међу бројним аспектима овог утицаја, може се издвојити издвојити и анализирати утицај вертикалних и хоризонталних померања која се јављају на површи терена. Мониторинг вертикалних и хоризонталних померања површи терена околних насељених места треба да има што бољу временску резолуцију (временски период између праћења деформација) како би се вертикална и хоризонтална померања контролисала и ...
    Сентинел 1 интерферометрија, слегање, Перманентни скатерери, Костолац

  • An Integrated Environment for Management and Exploitation of Linguistic Resources

    Ranka Stanković, Ivan Obradović (2009)
    ... to solve this prob- lem, at least partially. Thus Google recently started to ex- pand queries in Serbian, although obviously by means of some sort of a stemmer, a program for deleting suffixes and inflectional appendices and reduction to the ‘root’ of the word. This solves the i ...
    ... as functions of this web application are es- sentially also functions of WS4LR. WS4LR provides for the management and development of the system of morphological dictionaries as well as of wordnets, where both manipulation of individual wordnets and synchronized use of wordnets for ...
    ... The most important feature of the dictionary manage- ment module is the possibility of very efficient search of dictionaries, namely of finding subsets of lemmas based on different criteria. Fig. 1 depicts a form for management of dictionaries of simple words. Within this form, lemmas ...

  • BEYOND 2020 - Geology explorations and open pit activities affectation in reclamation designing in Kolubara Coal Mines (KCM) Serbia, new considerations

    Bojan Dimitrijević, Bogoljub Vučković, Radmila Gaćina (2023)
    Geology explorations in KCM runs from 1936. year up to these days and still ongoing. Results in >7,200 drill holes with ≈600,000 m of core drilling and gave lignite ore resources of > 4,1Bt, which 1,15Bt are excavated since 1986. of XIX up to early years of XXI century. For further mining operations in open pits stay 1,5Bt of lignite. Under waste heaps are ≈80 km2, additional 85 km2 should be filled. All of that masses/areas were, are ...

  • Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining

    Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić (2021)
    Geology,Geotechnical Engineering and Engineering Geology
    ... to determine the cutting resistance of the material in the seams of surface mines. The Lübeck Works of Orenstein and Koppel developed a wedge test method [1,14,17] to determine cutting resistance for hard and compact soils by measuring the penetration resistance of the bucket knife or tooth in the laboratory ...
    ... with the results of laboratory tests. In most cases, the operation of the machines has proven the predictions correct. Generally, the two laboratory testing methods are used to determine the cutting resistance of rock samples, the uniaxial compression test method and the wedge test method. 5.1. Uniaxial ...
    ... the rock specimens has a wedge angle of 35◦ with a blunter tip of width b = 5 mm and length of l = 65 mm (Figures 7 and 8) [14,17]. σ σ σ (a) (b) Figure 7. Wedge test method: (a) the wedge and (b) wedge position while testing cutting force. This test method suggests that the rock sample is installed ...