Претрага
472 items
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A comparison between ARIMA, LSTM, ARIMA-LSTM and SSA for cross-border rail freight traffic forecasting: the case of Alpine-Western Balkan Rail Freight Corridor
Miloš Milenković, Miloš Gligorić, Nebojša Bojović, Zoran Gligorić. "A comparison between ARIMA, LSTM, ARIMA-LSTM and SSA for cross-border rail freight traffic forecasting: the case of Alpine-Western Balkan Rail Freight Corridor" in Transportation Planning and Technology, Informa UK Limited (2023). https://doi.org/10.1080/03081060.2023.2245389
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Analiza mogućnosti primene tehnologije hvatanja i skladištenja ugljenika (CO2) na objektima Nis-A
Isidora Veljanoski (2024)U ovom radu opisana je primena CCUS tehnologija u kompaniji NIS i na koji način treba da se optimizuje da bi projekat bio rentabilan.U prvom i drugom poglavlju opisani su energetski trendovi i tranzicije, razvojni mehanizmi za regulisanje emisije gasova staklene baste i o ugljen-dioksidu kao hemijskom jedinjenju i šta je to CCUS.U trećem, četvrtom i petom poglavlju je detaljnije opisano izdvajanje, hvatanje, transport i skladištenje ugljen-dioksida.Šesto poglavlje i sedmo poglavlje obuhvataju rešenja za razvoj i realizaciju CCUS projekata ...energetski trendovi, ugljen-dioksid, CCUS, izdvajanje, hvatanje, transport i skladištenje CO2, ležište, ekonomija projekta... bon-capture-rd/pre-combustion-carbon [15] C. S. Adjiman, A. Bardow et al., Carbon capture and storage (CCS): the way: https://pubs.rsc.org/en/content/articlehtm1/2018/ee/c7ee02342a (2018) [16] M. Bentham, G. Kirby, CO»> Storage in Saline Aquifers, URL: https://ogst.ifpenergiesnouvelles.fr/ar ...
... Rubin, An engineering-economic model of pipeline transport t of CO> with application to carbon capture and storage, URL: https://lpdd.org/wp-content/uploads/2020/02/McCoy2008-Pipeline-cost- Technical.pdf (2007) [18] IEA Greenhouse Gas R&D Programme, Report on ship transport of CO», URL:ht ...
... COx», URL: https://www.maritime- executive.com/features/ocean-storage-of-co2 (2018) [26] Deep Saline Aquifers, URL: https://www.club-co2.fr/en/content/deep- saline-aquifers [27] Kompletna dokumentacija o ležištu, Nafta-gas [28] Pejović, B., Utiskivanje ugljen-dioksida u ležišta nafte, 1997, ...Isidora Veljanoski. Analiza mogućnosti primene tehnologije hvatanja i skladištenja ugljenika (CO2) na objektima Nis-A, 2024
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Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)
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 ...... the south), and near Trebinje (Pridvorci and Todorići, in the south), and are all from thin-layered brown limestone, with a signi�cant, visible content of organ- ic matter (resembling microbial mats). As a good example, the Pridvorci site consists of thin-bedded, laminated lime- stones, rich in organic ...
... the south), and near Trebinje (Pridvorci and Todoric¢i, in the south), and are all from thin-layered brown limestone, with a significant, visible content of organ- ic matter (resembling microbial mats). As a good example, the Pridvorci site consists of thin-bedded, laminated lime- stones, rich in organic ...
... of Rock-Eval pyrolysis, in- cluding maturity parameter T max,x , are shown in Tables 1, 2 and Figure 4. �e total organic carbon (TOC, wt.%) content is over 0.45% in all samples analysed. �e Triassic samples (No. 1–4) Locality Age* Sample TOC (%) S1 (mg HC/g rock) S2 (mg HC/g rock) HI (mg ...Nikoleta Aleksić, Aleksandar Kostić, Miloš Radonjić. "Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)" in Annales Societatis Geologorum Poloniae (2021). https://doi.org/10.14241/asgp.2021.16
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A Description of Morphological Features of Serbian: a Revision using Feature System Declaration
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 ...... 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 resources Kešelj, V., Kešelj ...Cvetana Krstev, Ranka Stanković, Vitas Duško. "A Description of Morphological Features of Serbian: a Revision using Feature System Declaration" in Proceedings of the 5th International Conference on Language Resources and Evaluation, LREC 2010, Valetta, Malta : European Language Resources Association (2010)
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Formative evaluation of e-learning projects with the logical framework approach
... offered for their translation. The conceptual model of the ICT solution for BAEKTEL OER framework envisages a network of nodes offering OER content and a central repository, the BAEKTEL Metadata Portal (BMP), where metadata, providing all important information on the network resources will ...Roberto Linzalone, Giovani Schiuma, Ivan Obradović, Ranka Stanković. "Formative evaluation of e-learning projects with the logical framework approach" in The Sixth International Conference on e-Learning (eLearning-2015), September 2015, Belgrade, Serbia, Belgrade Metropolitan Univesity (2015)
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Development of A Business Intelligence Tool For Accident Analysis in Mines
... n of a taxonomy-based navigation tool called “Site Browser” (http://wwwn.cdc.gov/niosh-mining) that allows researchers and other users to browse content tagged with subject terms from their taxonomy. Besides improving their performance using ICT, companies within Serbian mining industry are also ...Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Uroš Pantelić. "Development of A Business Intelligence Tool For Accident Analysis in Mines" in Proceedings of the 5th International Symposium Mining And Environmental Protection, June 10-13, 2015, Vrdnik, Serbia, Belgrade : Faculty of Mining and Geology (2015)
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Terminological and lexical resources used to provide open multilingual educational resources
Open educational resources (OER) within BAEKTEL (Blending Academic and Entrepreneurial Knowledge in Technology enhanced learning) network will be available in different languages, mostly in the languages of Western Balkans, Russian and English. University of Belgrade (UB) hosts a central repository based on: BAEKTEL Metadata Portal (BMP), terminological web application for management, browse and search of terminological resources, web services for linguistic support (query expansion, information retrieval, OER indexing, etc.), annotation of selected resources and OER repository on local edX ...... Learning, 2013, pp. 65–70. http://termi.rgf.bg.ac.rs/ [6] R. Stanković, D. Carlucci, O. Kitanović, N. Vulović and B. Zlatić, “LRMI markup of OER content within the BAEKTEL project,” in Proc. 6th International Conference on e-Learning (eLearning-2015), 2015, pp. 98–103. [7] C. Krstev, Processing of ...Biljana Lazić, Danica Seničić, Aleksandra Tomašević, Bojan Zlatić. "Terminological and lexical resources used to provide open multilingual educational resources" in The Seventh International Conference on eLearning (eLearning-2016), 29-30 September 2016, Belgrade, Serbia, Belgrade : Belgrade Metropolitan University (2016)
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Conversion of land areas after coal mine closure and reclamation
Otkopavanje uglja površinski i podzemno praćeno je degradacijom zemljišta, promenom formiranja predela i izmenom flore i faune. Od velikog značaja je razvoj novih naučno utemeljenih pristupa obnovljanje antropogeno poremećenih predela zasnovanih na formiranju rekultivacionih i rudarskih tehnologija. Apsolutno je neophodno obezbediti sveobuhvatno kvalitetno očuvanje zemljišnih i vodnih resursa i odrediti rekultivisano zemljište za novu namenu. U ovom članku je dat pregled najpopularnijih metoda rekultivacije zemljišta i mogućnosti rekultivacije zemljišta nakon završetka rekultivacije i zatvaranja rudnika uglja.... mining region. REFERENCES 1. 2. 10. 11. Ignatyeva, M., Yurak, V., Pustokhina N. Recultivation of Post-Mining Disturbed Land: Review of Content and Comparative Law and Feasibility Study. Resources 2020, 9, 73. https://doi.org/10.3390/ Group of authors, Land «#rehabilitation guidelines . for ...Radmila Gaćina, Bojan Dimitrijević, Sanja Bajić. "Conversion of land areas after coal mine closure and reclamation" in 9th International conference mining and environmental protection MEP 23 Proceedings, Sokobanja, 24-27.05.2023., Belgrade : University of Belgrade - Faculty of mining and geology (2023)
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XRD dertermination od hydrothermal phases related to epithermal mineralization in the Čukaru Peki deposit
Dragana Bosić, Vladica Cvetković, Miodrag Banješević, Kristina Šarić. "XRD dertermination od hydrothermal phases related to epithermal mineralization in the Čukaru Peki deposit" in V Congress of Geologists of Republic of Macedonia ": “Geology in a changing world”, Makedonsko geološko društvo (2024)
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Using English Baits to Catch Serbian Multi-Word Terminology
In this paper we present the first results in bilingual terminology extraction. The hypothesis of our approach is that if for a source language domain terminology exists as well as a domain aligned corpus for a source and a target language, then it is possible to extract the terminology for a target language. Our approach relies on several resources and tools: aligned domain texts, domain terminology for a source language, a terminology extractor for a target language, and a ...aligned texts, word alignment, terminology extraction, electronic dictionaries, morphological inflection... lemmatization was ap- plied to the English parts of the aligned chunks. English parts of the aligned chunks that do not have at least one lem- matized content word present in the lemmatized BoW Dic- tionary representation were eliminated. Along with original and lemmatized form of chunks and their counts ...
... matches some term in the Dictionary – S(align.chunk) ∼ S(term.dict) – and the Serbian part is a multi-word chunk, that is, it contains at least 2 content words) was 11,678. 2. In the next step the additional filtering was done – (T (align.chunk) ∼ T (term.list)) ∧ (T (term.list) ↔ S(term.dict)) ∧ (S(term ...Cvetana Krstev, Branislava Šandrih, Ranka Stanković. "Using English Baits to Catch Serbian Multi-Word Terminology" in Proceedings of the 11th International Conference on Language Resources and Evaluation, LREC 2018, Miyazaki, Japan, May 7-12, 2018, European Language Resources Association (ELRA) (2018)
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Spatial assessment of the areas sensitive to degradation in the rural area of the municipality Čukarica
Nature and Landscape Conservation, Soil Science, Agronomy and Crop Science, Water Science and TechnologyNatalija Momirović, Ratko Kadović, Veljko Perović, Miloš Marjanović, Aleksandar Baumgertel. "Spatial assessment of the areas sensitive to degradation in the rural area of the municipality Čukarica" in International Soil and Water Conservation Research, Elsevier BV (2019). https://doi.org/10.1016/j.iswcr.2018.12.004
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Remedijacija otpadnih voda Rudnika prirodnim zeolitom
Igor Veličković (2024)U radu je razmatrano prečišćavanje otpadnih flotacijskih voda sa područja rudnika Rudnik prirodnim zeolitskim tufom sa planine Jastrebac. Prečišćavanje otpadnih flotacijskih voda sa područja rudnika Rudnik prirodnim zeoliskim tufom sa obronaka planine Jastrebac pokazala se veoma efikasnom. Naime, u tri otpadne flotacijske vode utvrđen je povišen sadržaj arsena, hroma, gvožđa, mangana, kao i nikla. Jednostavnim tretmanom zeolitskim tufom iz ovih voda uklonjeni su svi ovi elementi. Sadržaji gvožđe i mangana su sniženi od 95 do 99 %, dok su ...... natural zeolitic tuff from the slopes of the Jastrebac mountain proved to be very effective. Namely, in three waste flotation waters, an elevated content of arsenic, chromium, iron, manganese, and nickel was determined. A simple treatment with zeolitic tuff removed all these elements from these waters ...
... were reduced from 75 to 82 %. Although the contents of the mentioned elements were significantly elevated before the treatment, except for the content of arsenic, the other toxic elements were not present in concentrations above the maximum permissible limit value for water discharged into the ...Igor Veličković. Remedijacija otpadnih voda Rudnika prirodnim zeolitom, 2024
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Analiza rada električnih centrifugalnih pumpi
Milica Stanojević (2024)Ovaj rad analizira rad električne centrifugalne pumpe (ESP) u naftnoj industriji, sa fokusom na problem taloženja kamenca (karbonatnih naslaga) unutar sistema. Električne centrifugalne pumpe (ESP) predstavljaju srce mnogih naftnih bušotina. Njihova visoka pouzdanost i sposobnost rada u zahtevnim uslovima čine ih neophodnim za stabilnu i kontinuiranu proizvodnju.Senzori igraju ključnu ulogu u praćenju rada ESP sistema i detekciji ranih znakova taloženja kamenca. Problem taloženja kamenca je izuzetno značajan, jer može dovesti do smanjenja efikasnosti pumpe, povećanja troškova održavanja, i dugoročnih zastoja ...... Tehnička dokumentacija “ 13. Halliburton, 2019. „7he New Standard For Electric Submerisble Pumps ”, https://www.halliburton.com/content/dam/ps/public/artificial_lift/content 41 Analiza rada električnih centifugalnih pumpi s/Brochures/web/CorsairMotors-08-19.pdf?nav=en-US_artificial- lift public ...Milica Stanojević . Analiza rada električnih centrifugalnih pumpi, 2024
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Development of a petrographic classification system for organic particles affected by self-heating in coal waste. (An ICCP Classification System, Self-heating Working Group – Commission III)
M. Misz-Kennan, J. Kus, D. Flores, C. Avila, Z. Büçkün, N. Choudhury, K. Christanis, J.P. Joubert, S. Kalaitzidis, A.I. Karayigit, M. Malecha, M. Marques, P. Martizzi, J.M.K. O'Keefe, W. Pickel, G. Predeanu, S. Pusz, J. Ribeiro, S. Rodrigues, A.K. Singh, I. Suárez-Ruiz, I. Sýkorová, N.J. Wagner, D. Životić (2020)Self-heating of coal waste is a major problem in the leading coal-producing and consuming countries, independent of the recent or past coal exploitation history. The phenomenon of self-heating is dependent on many factors such as the properties of organic matter (maceral composition and rank), moisture and pyrite content, climate effects, and storage conditions (shape of the dump or compaction of the coal waste). Once deposited, coal waste undergoes oxidation, which can lead to self- heating with the overall temperatures ...M. Misz-Kennan, J. Kus, D. Flores, C. Avila, Z. Büçkün, N. Choudhury, K. Christanis, J.P. Joubert, S. Kalaitzidis, A.I. Karayigit, M. Malecha, M. Marques, P. Martizzi, J.M.K. O'Keefe, W. Pickel, G. Predeanu, S. Pusz, J. Ribeiro, S. Rodrigues, A.K. Singh, I. Suárez-Ruiz, I. Sýkorová, N.J. Wagner, D. Životić. "Development of a petrographic classification system for organic particles affected by self-heating in coal waste. (An ICCP Classification System, Self-heating Working Group – Commission III)" in International Journal of Coal Geology, Elsevier BV (2020). https://doi.org/10.1016/j.coal.2020.103411
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Prvi nalazi repatih vodozemaca (Urodela) u pleistocenskoj pećinskoj fauni Srbije; još jedna kockica u slagalici
Fosilna fauna pleistocenskih pećina odslikava sastav faune njihove okoline. Najčešće se u njima naleze ostaci krupnih sisara ledenog doba koji su je koristili kao stanište. Uz njih česti su i ostaci drugih sitnih kičmenjaka kao što su sitni sisari, ribe, vodozemci, gmizavci i ptice. Ostaci sitnih kičmenjaka u većini slučajeva u pećinu dospevaju kao plen grabljivica (ptice i sisari) ali je manji broj njih pećinu koristio i kao sklonište ili stanište. U proučavanje fluktuacija pleistocenske klime sve češće se ...... Fojnica, BiH Tiraž: 150 primjeraka Napomena: 4ufori su odgovorni za sadržaj i kvalitet svojih radova Note: 7he authors are responsible for the content and quality of their papers ZBORNIK RADOVA III KONGRES GEOLOGA BOSNE I HERCEGOVINE ISSN 1840-4073 UDRUŽENJE / UBRUGR GEDLOGR BOSNE I HERCEGOVINE ...Dragana Đurić, Katarina Bogićević, Draženko Nenadić, Mihajlo Jovanović, Aleksandra Savković. "Prvi nalazi repatih vodozemaca (Urodela) u pleistocenskoj pećinskoj fauni Srbije; još jedna kockica u slagalici" in Zbornik sažetaka III Kongresa geologa Bosne i Hercegovine sa međunarodnim učešćem. Neum, 21.-23. septembar/rujan 2023, Ilidža : Udruženje geologa Bosne i Hercegovine (2023)
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Flyrock induced by blasting in surface mining
Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac (2022)Miniranje predstavlja i dalje najefikasniji i najjeftiniji način eksploatacije velikih količina čvrstih mineralnih sirovina na površinskim kopovima. Energija eksplozije se koristi za fragmentaciju čvrste stenske mase do zahtevane granulacije. Pored pozitivnih efekata miniranja, postoje i određeni neželjeni efekti svakog procesa miniranja koji se mogu javiti, a to su: potresi tla, razletanje komada stene, vazdušni udari, otrovni i zagušljivi gasovi i prašina. Razletanje komada stene je nekontrolisano izbacivanje fragmenata odminirane stenske mase i predstavlja jedan od glavnih izvora materijalne štete ...Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac. "Flyrock induced by blasting in surface mining" in Rudarski glasnik, Beograd : Rudarski institut (2022). https://doi.org/10.25075/BM.2022.05
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Data from the Digital Repository of the Faculty of Mining and Geology in eScience (eNauka)
Biljana Rujević, Mihailo Škorić (2024)The paper describes linking the Digital Repository of the University of Belgrade, Faculty of Mining and Geology, with the eScience system in terms of transferring metadata about the results of researchers' scientific work. The steps taken to ensure a smooth harvesting of metadata are outlined. Additionally, a presentation of additional improvements to the OAI system is provided, aiming to contribute to the automatic linking of authors with their results in the eScience system.Biljana Rujević, Mihailo Škorić. "Data from the Digital Repository of the Faculty of Mining and Geology in eScience (eNauka)" in Infotheca, Faculty of Philology, University of Belgrade (2024). https://doi.org/10.18485/infotheca.2023.23.2.4
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Development of an integrated model for open-pit-mine discontinuous haulage system optimization
Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović (2024)Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović . "Development of an integrated model for open-pit-mine discontinuous haulage system optimization" in Sustainability, MDPI (2024). https://doi.org/10.3390/su16083156
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Дефинисање геотехничких параметара еолских седимената земуснког платоа на основу лабораторијских и теренских SPT испитивања
Ђорђе Крзман (2024)Циљ овог рада је био да се одреде геотехничке караткеристике предметног терена што представља полазну основу за рационално пројектовање и градњу. Истражним бушењем утврђено је да предметни терен изграђују четри лесна хоризонта и три слоја погребене земље до дубине од 22-23 m. Лабораторијским испитивањем добијени су ефективни параметри смичуће чврстоће, где се кохезија најчешће креће између c’=14 и 18 kPa, а угао унутрашњег трења f'= 25 - 30 °. Теренска SPT испитивањем уз коришћење прихваћених корелација у геотехничкој пракси ...... thick, lies between 90-93 (+/- 1.5m) elevation, with interlayers of sand between 93-94m above sea level. Silty to silty-sandy, with an increased content of carbonate powder along the veins, and in the lower parts concretions. Colors yellowish to light brown, with tubular macropores about 2 mm wide ...
... 4-Sm thick, lis botween 90-93 (+ 1.5m) elevation, wilh interlayers of sand bohvoen e83-94m above sea leval. Silty to sity-sandy, with an increased content of carbonate powder along ih veins, and in the lower parts concretions. Colors yellowish to light brown, wil tubular macropores about 2 | mm wide ...
... thick, lies between 90-93 (+/- 1.5m) elevation, with interlayers of sand between 93-94m above sea level. Silty to silty-sandy, with an increased content of carbonate powder along the |veins, and in the lower parts concretions. Colors yellowish to light brown, with tubular macropores about 2 |mm wide ...Ђорђе Крзман. Дефинисање геотехничких параметара еолских седимената земуснког платоа на основу лабораторијских и теренских SPT испитивања, 2024
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A business intelligence approach to mine safety management
Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Dejan Stevanović, Marija Radojičić (2016)... of a taxonomy-based navigation tool called “Site Browser” (http://wwwn.cdc.gov/niosh-mining) that allows researchers and other users to browse content tagged with subject terms from their taxonomy. Besides improving their performance using ICT, companies within Serbian mining industry are also ...Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Dejan Stevanović, Marija Radojičić . "A business intelligence approach to mine safety management" in 13th International Symposium Continuous Surface Mining, Beograd : Yugoslav Opencast Mining Committee (2016)