Претрага

Упит dcterms_subject_txt:Influence of synthesis method

2841 items

  • Nonequilibrium athermal random-field Ising model on hexagonal lattices

    Svetislav Mijatović, Dragutin Jovković, Đorđe Spasojević (2021)
    Изингов модел, хексагонална решетка

  • 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

  • Rezultati ispitivanja parametara čvrstoće i dinamičkih svojstava mermera i mogućnost njihove korelacije

    Jelena Majstorović-Necković, Vladimir Čebašek, Veljko Rupar (2023)
    Ispitivanja stena kao radne sredine, odnosno materijala sa kojim se gradi, na kome se gradi i u kome se gradi, svojom složenošću zahteva njeno svestrano izučavanje po velikom broju parametara. Zadatak Mehanike stena je da što bolje upozna ponašanje stenske mase i njenu otpornost na dejstvo pritiska, zatezanja i smicanja, kao i dinamičkih svojstava. Poznavanje navedenih parametara i njihova korelacija omogućavaju pouzdaniji izbor parametara za projektovanje danas sve zahtevnijih uslova kako podzemne, tako i površinske eksploatacije. U ovom radu ...
    mermer, jednoosna čvrstoća na pritisak, čvrstoća na istezanje, brzina longitudinalnih elastičnih talasa, korelacija

  • Hronološki pregled razvoja površinske eksploatacije lignita u Srbiji

    Bojan Dimitrijević, Radmila Gaćina, Bogoljub Vučković (2023)
    U ovom preglednom radu dat je istorijski pregled razvoja površinske eksploatacije lignita na teritoriji Srbije, uz kratak osvrt na geološki nastanak i kvalitet i rezerve uglja, kao i mogućnosti korišćenja za dalju upotrebu. Kolubarski, Kostolački i Kovinski ugljeni baseni lignita u Srbiji, ne računajući Kosovsko-Metohijski i Drenički u sastavu AP Kosovo i Metohija po Rezoluciji 1244 UN, su ležišta najrasprostranjenijeg uglja - lignita u Srbiji koji se eksploatiše od druge polovine 20. veka na velikom broju površinskih kopova ...
    površinska eksploatacija ugalja, lignit, Kolubara, Kostolac, Srbija

  • Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)

    Nikoleta Aleksić, Aleksandar Kostić, Miloš Radonjić (2021)
    This paper presents the first data on the organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in the East Herzegovina region of the External Dinarides. Representative, organic-rich samples from outcropping sedimentary rocks of different ages in the area (Triassic to Neogene) were selected and analysed. The organic matter was studied by Rock-Eval pyrolysis and under the microscope in reflected non-polarized light and incident blue light. The results obtained show the presence of different types of organic ...
    nafta i gas, Rock-Eval, refleksija vitrinita, maceral, termička zrelost
    ... System 1994). Fuel, 77: 349l–358. ISO 7404-5, 2009. Methods for the Petrographic Analysis of Coals – Part 5: Method of Determining Microscopically the Re�ectance of Vitrinite. ISO/TC 27/SC 5 – Methods of analysis, International Organization for Standardization, Geneva, 14 pp. Juračić, M. & Palinkaš ...
    ... (ICCP System 1994). Fuel, 77: 3491-358. ISO 7404-5, 2009. Methods for the Petrographic Analysis of Coals - Part 5: Method of Determining Microscopically the Reflectance of Vitrinite. ISO/TC 27/SC 5 - Methods of analysis, International Organization for Standardization, Geneva, 14 pp. Juraci¢, M. & Palinka& ...
    ... indices, as it reliably covers the entire maturity range and is the only standardized method for the determination of thermal maturity determination. As the temperature increases, huminite (the immature equivalent of vitrinite; < 0.50% Rr), and later vitrinite (with a higher rank; > 0.50% Rr), undergo ...

  • Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software

    Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić (2024)
    The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...
    optimizacija, 3D model, bušenje, miniranje, O-Pitblast, softver

  • Medical Domain Document Classification via Extraction of Taxonomy Concepts from MeSH Ontology

    Mihailo Škorić, Mauro Dragoni (2019)
    This paper is a result of a task that was presented to attendants of Keyword Search in Big Linked Data summer school, that was organized by Vienna University of Technology, under the Keystone COST action in the summer of 2017. It presents a specific approach to the classification via creation of minimal document surrogates based on the US National medical library’s MeSH ontology, which is derived from the Medical Subject Headings thesaurus. In a series of previously classified medically ...
    document classification, MeSH, ontology, information extraction
    ... Classification of documents using identifiers Two processing procedures were applied to the documents subject to clas- sification, resulting in two test sets. The control method was to replace the identifiers with their class, a more general hierarchical designation. The ex- perimental method also considered ...
    ... the growth of a set of test documents, its performance further decreases, which was not desirable in solving our task. In this paper, we experiment with a simple classification approach to evaluate the importance of timely management of large amounts of data, as well as the usable value of semantics ...
    ... considered the length of the identifiers, so they were replaced by a certain number of iterations of the parent class depending on their length, to test the assumption that the use of more specialized terms was more important for determining the class of documents. So, instead of reducing the identifiers ...

  • Hydraulic impact of pressure transients from water conveyance tunnel on the complex hydrogeological system: A case study HPP

    Igor Jemcov, Maja Todorović, Aleksandar Jemcov, Marina Ćuk Đurović (2024)
    Tunel pod pritiskom, Unutrašnji pijezometri, Tranzijenti pritiska, Karstna izdan, Pukotinska izdan, Hidraulički odziv
    ... created based on the hydraulic impacts of HPPs in different geological environments along the tunnel route. The water pressure response enabled aquifer characterization of(1) a thin-layered, low-fissured aquifer closely related to the reservoir, with low influence on WMO transients; (2) a low- fissured ...
    ... with minimal to no influence on WMO transients; (3) a well-structured karst aquifer system influenced by WMO transients; (4) afault-controlled zone of deep hypogene karst aquifer discharge highly influenced by WMOo transients; and (5) an aquifer with a dominant development of the karst conduit ...
    ... Validation, Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. Acknowledgement This work was supported by the Ministry of Science, Technological ...

  • Using Query Expansion for Cross-Lingual Mathematical Terminology Extraction

    Velislava Stoykova, Ranka Stanković (2018)

  • Компарација метода XRF i ICP-MS на узорцима угља и продуктима сагоревања

    Бранко Костић, Ксенија Ераковић, Дејан Прелевић, Сабина Ковач, Драгана Животић (2023)
    геохемија, угаљ, продукти сагоревања, XRF, ICP-MS

  • Značaj geografske širine za lociranje uzročnika magnetnih anomalija kod prospekcije arheoloških lokaliteta

    Vesna Cvetkov (2020)
    ... B. Kvamme K. L., Altami- ra Press. Baranov, V. 1957. A new method for interpretation of aeromagnetic maps: Pseudogravimetric anomalies. Geop- hysics XXII/ 2: 359-383. Baranov, V., Naudy, H. 1964. Numeri- cal calculation of the formula of redu- ction to the magnetic pole. Geophysics XXIX/ 1: 67-79 ...
    ... historical development of the magnetic method in exploration. Geophysic, 70/6, 33ND-61ND. Oldfield, F., 1992. The source of fine-grained ’magnetite’ in sediments. Holocene 2: 180-182. Schettino, A., Gnezzi, A., Pieraan- toni. P. P. 2018. Magnetic field mo- delling and analysis of uncertainty in arc ...
    ... trends in the prediction of the buried past: A review of geophysical techniques in ar- cheology. Archaeometry 50, 2: 313-336. Gaffney, C., Gater, J., Ovenden, S. 2002. Тhe use of geophysical tech- niques in archaeological evaluations. Technical Paper No 6, Institute of Field archaeologists. IFA ...

  • Палеомагнетски резултати из Тимочког магматског комплекса, Источна Србија

    Весна Лесић, Емо Мартон, Драган Лукић, Весна Цветков (2018)
    ... the natural  remanent magnetization  (NRM) of each sample was measured. This was  followed by stepwise demagnetization of sister speci‐ mens of selected samples, one with alternating field, the other with thermal method (accompanied by  the monitoring of the magnetic susceptibility) till the magnet ...
    ...  Geodetic Authority, Department of Geomagnetism and Aeronomy, Belgrade, Serbia, e‐mail: vlesić@drenik.net  2) Mining and Gelogical Survey of Hungary  3) Nature History Museum, Belgrade, Serbia  4)  University of Belgrade, Faculty of Mining and Geology, Depratment of Geophysics, Belgrade, Serbia    ...
    ...  on a sphere. Proceedings of the Royal Society London, 217, 295‐305.  Kirschvink, J.L., 1980. The least‐squares line and plane and the analysis of paleomagnetic data. Geophy‐ sical Journal of the Royal Astronomical Society, 62, 699–718.  Lowrie, W., 1990. Identification of feromagnetic minerals in  ...

  • English for Geology Students. 1

    Lidija Beko (2023)
    Engleski jezik
    ... creatures with which we share our planet – every aspect of the Earth. Earth scientists, like their colleaguesin other fields, have developed a scientific method based on observation and collection of data, formu- lation and testing of hypothe- ses,leadingto the formulation oflaws or principles ...
    ... and acidity of the atmosphere, mean it is necessary for anyone visiting the Cave to wear a protective “ice suit”. The Caves have been flooded for much oftheir history, and the unique conditions of the heat and the solute content of the water is thought to account for the formation of the crystals ...
    ... радовима запослених доступним у слободном приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository ...

  • 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 ...
    ... (the name of one settlement), which the new system again misses. Fig. 1. One document dealing with the gold. 5 Evaluation The goal of evaluation was to assess the efficiency of the old and new search method. The evaluation was performed over the entire collection of documents and a set of 10 information ...
    ... initiate her/his search using any of the two, and the method on the server automatically expands the search query with the other, while the results are shown in the original script, and that is Cyrillic. Query processing on the server side expands the query by creating a matrix of key words, fields that are ...
    ... and general lack of readiness for the use of modern information technology. Consequently, the Ministry of Natural Resources and Environment Protec- tion, now the Ministry of Mining and Energy of the Republic of Serbia, launched in 2004 the project of the Geological Information System of Serbia, which has ...

  • Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area

    Jovan Kovačević, Maja Todorović, Marina Ćuk, Petar Papić (2016)
    jurski sedimenti, uran, torijum, elementi retkih zemalja, podzemna voda, istočna Srbija

  • Determination of Mechanical Properties of Altered Dacite by Laboratory Methods

    Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović (2021)
    This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...
    Geology, Geotechnical Engineering, Engineering Geology
    ... proportions of values for heterogeneous rock types to be considered for the “intact rock” properties (σci and mi) determination based on Marinos and Hoek [9]. This study aims to investigate the influence of variations in the volumetric partici- pation of weaker rock material on the strength parameters of a ...
    ... 2021, 11, 813 16 of 19 Figure 16. Comparison of the intact rock material UCS σci TX. Marinos and Hoek [9] proposed a practical method for determining the intact strength properties of a heterogeneous rock mass. The authors suggested that it is not appropriate to use properties of stronger rock material ...
    ... Figures 16 and 17. Figure 17. Comparison of the value material constant mi. Marinos [10] expanded and modified the original practical method for determining the intact strength properties of a heterogeneous rock mass. In this method, too, the strength properties of a heterogeneous rock mass σci and mi are ...

  • 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
    ... The concentrations of CO» and CHu in 2019 were the highest recorded in recent history [4]. It is assumed that human influence has led to the global retrcat of glacicrs since the 1990s and thc retreat of the surface of the Arctic Sea ice between 1979—1988 and 2010—2019 [4]. Global surface tempcratures ...
    ... 2023| 5] AR Synthesis Report: Climate Change 2023, in Proc. 60h 4ssessment Report during the Panel's 58th Session, Interlaken, Switzerland, 13-19 March 2023. https://www.ipcc.ch/report/sixth-assessment-report-cycle/ [pristupljeno 10.02.2023| 6] Paris agreement, in Proc. Conference of the Parties ...
    ... 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 ...

  • Managing mining project documentation using human language technology

    Aleksandra Tomašević, Ranka Stanković, Miloš Utvić, Ivan Obradović, Božo Kolonja (2018)
    Purpose: This paper aims to develop a system, which would enable efficient management and exploitation of documentation in electronic form, related to mining projects, with information retrieval and information extraction (IE) features, using various language resources and natural language processing. Design/methodology/approach: The system is designed to integrate textual, lexical, semantic and terminological resources, enabling advanced document search and extraction of information. These resources are integrated with a set of Web services and applications, for different user profiles and use-cases. Findings: The ...
    Digital libraries, Information retrieval, Data mining, Human language technologies, Project documentation

  • A Multilingual Evaluation Dataset for Monolingual Word Sense Alignment

    Sina Ahmadi, John P McCrae, Sanni Nimb, Fahad Khan, Monica Monachini, Bolette S Pedersen, Thierry Declerck, Tanja Wissik, Andrea Bellandi, Irene Pisani, [...] Ranka Stanković and others (2020)
    Aligning senses across resources and languages is a challenging task with beneficial applications in the field of natural language processing and electronic lexicography. In this paper, we describe our efforts in manually aligning monolingual dictionaries. The alignment is carried out at sense-level for various resources in 15 languages. Moreover, senses are annotated with possible semantic relationships such as broadness, narrowness, relatedness, and equivalence. In comparison to previous datasets for this task, this dataset covers a wide range of languages ...
    lexical semantic resources, sense alignment, lexicography, language resource
    ... for constructing an n-way alignment of LSRs and applied it to the produc- tion of a three-way alignment of the English WordNet, Wikipedia and Wiktionary. Niemann and Gurevych (2011) propose a threshold-based Personalized PageRank method for extracting a set of Wikipedia articles as alignment candidates ...
    ... candidates and automatically aligning them with WordNet synsets. This method yields a sense inventory of higher coverage in comparison to taxonomy mapping techniques where Wikipedia categories are aligned to WordNet synsets (Ponzetto and Navigli, 2009). Matuschek and Gurevych present the Dijkstra-WSA ...
    ... Congress: Lexicography in Global Contexts, pages 915–923. Nimb, S. (2018). The Danish FrameNet lexicon: method and lexical coverage. In Proceedings of the Interna- tional FrameNet Workshop at LREC 2018: Multilingual FrameNets and Constructions, pages 51–55. Osenova, P. and Simov, K. (2017). Challenges ...

  • The effect of finite driving rate on avalanche distributions

    Sonja Radić, Sanja Janićević, Dragutin Jovković, Đorđe Spasojević (2021)
    Statistics, Probability and Uncertainty,Statistics and Probability,Statistical and Nonlinear Physics