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Упит dcterms_subject_txt:mathematical content

473 items

  • A contribution to the knowledge of facial diversity of Badenian sediments in the Belgrade area

    Filip Anđelković, Dejan Radivojević (2018)
    baden, Beograd, facije, facijalna raznovrsnost, sedimenti
    ... his paper, belong to the  upper cycle, and the facies of Višnjica clays and Konjarnik schlier belong to the lower cycle.   Based on their fossil content, Tašmajdan  limestones are further subdived  into three subfacies:  Lithothamnium‐bryozoan  limestone,  Amphistegina  limestone  and  Cerithium  limestone ...

  • Novi pristup proučavanju tekstura minerala značajnih za istraživanje rudnih ležišta

    Aleksandar Pačevski (2022)
    ... sgd.rs ISBN-978-86-86053-23-7 Napomena: Autori su odgovorni za sadržaj i kvalitet svojih saopštenja Note: 7he authors are responsible for the content and quality oftheir contributions Organizacioni odbor / Organizing Committee Vladimir Simić (predsednik), Danica Srećković-Batoćanin (potpredsednik) ...

  • English for Geology Students. 1

    Lidija Beko (2023)
    Engleski jezik
    ... 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. Ateam ofscientists have discovered imperfections or inclusions within some ...

  • NMR kinetic studies of the interactions between [Ru(terpy)(bipy)(H2O)]2+ and some sulfur-donor ligands

    Aleksandar Mijatović, Biljana Šmit, Ana Rilak, Biljana Petrović, Dragan Čanović, Živadin D. Bugarčić (2012)
    Reakcije supstitucije monofunkcionalnog [Ru(terpi)(bipi)(H2O)]2+ kompleksa, gde je terpi = 2,2′:6′,2″-terpiridin i bipi = 2,2′-bipiridin, sa biološki relevantnim sumporo donorskim ligandima, kao što su tiourea, l-metionin, l-cistein i glutation, proučavane su u vodenim rastvorima tehnikom 1H i 13C NMR spektroskopije. Sve reakcije su proučavajne na pH 7,4, u prisustvu fosfatnog pufera, da bi se oponašalo fiziološko okruženje tokom procesa supstitucije. Reakcije se izvode na 295 K pod uslovima reakcija drugog reda. Uočeni rezultati pokazuju da brzina supstitucije snažno zavisi ...
    Materials Chemistry,Inorganic Chemistry,Physical and Theoretical Chemistry

  • Uticaj geološke neizvesnosti u razvoju rudarskih projekata

    Petar Marković, Dejan Stevanović, Mirjana Banković (2023)
    Rudarstvo je industrija koja se nosi sa različitim vrstama neizvesnosti i rizika zbog svoje prirode i specifičnosti. Neizvesnost u rudarstvu može poticati iz različitih izvora i uticati na različite aspekte rudarskih projekata. Kao jedan od dominantnih faktora, ističe se geološka neizvesnost. Geološka neizvesnost igra ključnu ulogu u rudarstvu i može značajno uticati na procenu resursa i rezervi, planiranje eksploatacije, ekonomsku isplativost i upravljanje rizicima. Ova neizvesnost se ne može eliminisati, ali se uz primenu adekvatnih standarda i zakona može ...
    ... X., Ortiz J., Rodriguez J. (2006). Quantifying Uncertainty in Mineral Resources by Use of Classification Schemes and Conditional Simulations. Mathematical Geology , 38 (4), 445-464. [9] G. Lagos et al. (2011). Robust planning for an open-pit mining problem under ore-grade uncertainty. Electronic ...
    ... are shown. The analysis was carried out on an iron ore deposit and is based on the assumed uncertainty that may occur in the assessment of the content of the useful component in the ore (grade of iron in the ore). The results were generated in the Whittle software package. Keywords: geological ...

  • Simulation of Hydrogeological Environmental Discharge in Case of Interruption Constant Observations

    Marina Čokorilo Ilić, Dragoljub Bajić, Miroslav Popović (2024)
    Monitoring Network, data, hydrogeological environment, tunnel, simulation

  • Петрологија црвених пешчара источне Србијe

    Андреј Марковић (2024)
    У источној Србији формација црвених пешчара има велико распрострањење и улази у састав многих планина овог дела наше земље. Формацију чине кластичне стене интензивно црвене боје псамитске, ређе псамитско-псефитске структуре и алевритске структуре. Ове стене леже трансгресивно преко старијих пермо-карбонских и карбонских стена, док навише прелазе у доњотријаске седименте. Формација црвених пешчара захвата два појаса унутар Карпато-балканида – унутрашњи и средишњи део. Узорци анализирани у овом раду део су средишњег појаса. Тема завршног рада је петрологија црвених пешчара источне ...
    источна Србија, црвени пешчар, петролошко-минералошке карактеристике, аркозе
    ... _Sa _ - e „9TIPVUTV HA Opayaai eR —| h, X — / i / eoši Y ·. ~ i Cnuka 1. Kapra Cponje (https://geografijazaradoznale.wordpress.com/wp- content/uploads/201 5/09/koridor-10a-gif.jpg) ca reprropHjoM peke 1 pse koji Ilapahana (https://www.musicar.rs/reka-grza/mapa-grza/) 1.2. IIiperaten panujax ...
    ... nadogshows.com/sr/aktuelno/turizam-paracin-srbija/ https://kompaskazesrbija.rs/izletiste-grza/ https://geografijazaradoznale.wordpress.com/wp-content/uploads/2015/09/koridor-10a-gif.jpg) https://www.musicar.rs/reka-grza/mapa-grza/ - AHTroHoBHh, A. (1980): OĐopwanuje "npBeHMx HepMcKHX memapa" ...

  • Increasing the Local Road Network Resilience from Natural Hazards in Municipalities in Serbia

    Biljana Abolmasov, Miloš Marjanović, Ranka Stanković, Uroš Đurić, Nikola Vulović (2024)
    lokalni putevi, prirodni hazardi, otpornost na klimatske promene, MaPLoRds

  • SASA Dictionary as the Gold Standard for Good Dictionary Examples for Serbian

    Ranka Stanković, Branislava Šandrih, Rada Stijović, Cvetana Krstev, Duško Vitas, Aleksandra Marković (2019)
    У овом раду представљамо модел за избор добрих примера за речник српског језика и развој иницијалних компоненти модела. Метода која се користи заснива се на детаљној анализи различитих лексичких и синтактичких карактеристика у корпусу састављених од примера из пет дигитализованих свезака речника САНУ. Почетни скуп функција био је инспирисан сличним приступом и за друге језике. Дистрибуција карактеристика примера из овог корпуса упоређује се са карактеристиком дистрибуције узорака реченица ексцерпираних из корпуса који садрже различите текстове. Анализа је показала да ...
    Српски, добри примери из речника, аутоматизација израде речника, издвајање својстава, Машинско учење
    ... Interlinking of related words is envisaged as more explicit, on the level of lexical units (senses), which will enable the reuse of dictionary content that already exists in the database. The fine-grained structure of the database enabled the creation of a dataset of examples supported by a set ...
    ... g the usage of our feature extractor!", "lang":"en", "kwic": "usage", "feature_names": ["sentence_length","avg_word_len", "no_all_tokens"]}' -H "Content-Type: application/json" -X POST http://147.91.183.8:12347/features and the fields are:  data (string) – mandatory, contains text for which ...

  • 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
    ... have significant differences in struc- ture and heterogeneity in content, which makes aligning information across resources and languages a challenging task. Word sense alignment (WSA) is a more specific task of linking dictionary content at sense level which has been proved to be beneficial in various ...
    ... ern dictionary. Often such differences in ontological type across the two dictionaries were due to regular polysemy (act/result, semiotic artifact/content, animal/food, organi- sation/building etc., see for example (Pustejovsky, 1995)). Two dictionaries will often differ in their descriptions in cases ...

  • Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential

    Nataša Čuković-Ignjatović, Ana Vranješ, Dušan Ignjatović, Dejan Milenić, Olivera Krunić (2021)
    The study presented in this paper assessed the multidisciplinary approach of geothermal potential in the area of the most southeastern part of the Pannonian basin, focused on resources utilization. This study aims to present a method for the cascade use of geothermal energy as a source of thermal energy for space heating and cooling and as a resource for balneological purposes. Two particular sites were selected—one in a natural environment; the other within a small settlement. Geothermal resources come ...
    геотермална енергија, Панонски басен, геотермална каскада, енергетска ефикасност, бањски центри, балнеологија, биоклиматска архитектура, стратегије пасивног дизајнирања, модуларни објекти
    ... majority of proposed facilities (13 out of 20, Figure 4) were supposed to be completely new developments, while 7 cases were supposed to offer additional content mainly to partly developed outdoor facilities (usually pools, baths or ponds). In almost all cases, small scale structures were more suitable than ...
    ... indicates that geothermal water had circulated in a carbonated reservoir rather than in a sulfated one; F—no indication in growth of potassium content, which excludes possible circulation in granitic field. α β γ δ ∆ = × 4.5 × 16 Figure 9. (a) D’Amore parameters diagram of chemical ...
    ... indicates the geothermal water had circulated in a sulfated reservoir rather than a carbonated reservoir; F—indicates no in growth of potassium content, which excludes possible circulation in a granitic field α β γ δ ∆ = × 12 × 19 Figure 10. (a) D’Amore parameters diagram of chemical ...

  • Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes

    Jelena Malenović Nikolić, Dejan Vasović , Ivana Filipović , Stevan Mušicki, Ivica Ristović (2016)
    menadžment, rudrastvo i energetski kompleksi, okruženje, održivi razvoj, mrežno planiranje
    ... 2014; Environmental Protection Agency: Belgrade, Serbia, 2015. (In Serbian) http://www.misp-serbia.rs/wp-content/uploads/2010/05/EAS-Strategija-ENG-FINAL.pdf http://www.misp-serbia.rs/wp-content/uploads/2010/05/EAS-Strategija-ENG-FINAL.pdf http://dx.doi.org/10.3390/en9020081 http://dx.doi.org/10.339 ...
    ... prioritization. Within this approach, the significance of the environmental aspects (and its impacts) is defined based on the total score of the mathematical product between the degree of impact significance and the likelihood of occurrence, according to the defined criteria. The environmental impacts ...
    ... Acknowledgments: The presented research is a part of the projects “Development of new information and communication technologies, based on advances mathematical methods, with applications in medicine, telecommunications, power systems, protection of natural heritage and education” (III 44006) and “Research ...

  • Arsenic in Tap Water of Serbia´s South Pannonian Basin and Arsenic Risk Assessment

    Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić (2012)
    kvalitet podzemnih voda, arsen, analiza rizika, Panonski Basen
    ... Earlier research of arsenic in Serbian groundwater showed As levels from 5 to 349 μg/L [6]. In several regions of the Great Hungarian Plain the As content of groundwa- ter is higher than the acceptable limit for drinking water Pol. J. Environ. Stud. Vol. 21, No. 6 (2012), 1783-1790 Original Research ...
    ... causes of physicochemical non-compliance in Srem are concentra- tions of iron and manganese higher than MPC [19]. In the Srem District, the mineral content of groundwater was found to be lower than in other parts of Vojvodina. Total hardness measured from 5°dH to 17°dH. Concentrations of organic substances ...

  • Properties of fly ash and slag from the power plants

    Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić (2016)
    This paper describes the physical, chemical and mineral properties of ash and slag, which were taken from thermal power plants Nikola Tesla A, Nikola Tesla B, Kostolac A and Kostolac B. The knowledge of the mineralogical material composition is important because the type of minerals directly determines the properties of the fly ash and slag and their possible application. Laboratory tests showed that ash and slag samples consist of the following minerals: amorphous materials, quartz, feldspar, mullite, melilite, cristobalite, ...
    fly ash, slag, physical composition, chemical composition, mineral composition, X-ray diffraction method
    ... – Pyknometer metod. EN 1328-1 (2003): Unbound and hydraulically bound mixtures – Part 1: Test methods for laboratory reference density and water content – Introduction, general require- ments and sampling. KEZOVIĆ, M. (2011): Coal bearing in Kolubara Basin.– The Journal of the Public En- terprise ...
    ... and coke – Determination of sulfur trioxide (SO3) in ash from solid fuels. SRPS B.H8.327 (1989): Solid mineral fuels – Determination of phosphorus content – Reduced molybdophosphate photometric method. SRPS U.B1.018 (2005): Testig soils – Determination of particle size distribution. SPRS H.C8.209 (1989): ...

  • Wordnet Development Using a Multifunctional Tool

    Ivan Obradović, Ranka Stanković (2007)
    In this paper we present a multifunctional tool for manipulating heterogeneous language resources. The tool handles electronic dictionaries, wordnets and aligned texts, and provides for their synchronous use in various tasks. We focus here on the description of the possibilities this tool offers in the development of wordnets. Besides the wordnet module which enables parallel handling of two wordnets, other modules, such as the module for morphological dictionaries and the module for aligned texts, as well as available finite ...
    Wordnet development, language resource integration, HLT tools
    ... and/or NooJ system, and select a list of dictionaries he/she wants to use. As none of the three systems offers possibilities for managing the content of dictionaries themselves, the WS4LR dictionary management module has been developed to enable the entry, editing and review of lemmas of simple ...
    ... can retrieve all synsets from the wordnet that belong to the domain of geology, or more precisely, that contain the XML tag with the content “geology”. WS4LR offers predefined Xpath expressions, but the user can also define these expressions him/herself. Once the user has retrieved ...

  • 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 ...
    ... literary texts the results were much poorer (on average P = 57.8%, R = 37.7% and F1 = 45.7%). 2NER&Beyond, http://nerbeyond.jerteh.rs/ 3ACE (Automatic Content Extraction) 2005 Multi- lingual Training Corpus, https://catalog.ldc.upenn. edu/LDC2006T06 SHINRA2020-ML shared-task (Sekine et al., 2020) targeted ...
    ... century with the TXM platform. In DH_BUDAPEST_2019, pages 36–37. Centre for Digital Humanities - Eötvös Loránd Univer- sity. http://elte-dh.hu/wp-content/uploads/ 2019/09/DH_BP_2019-Abstract-Booklet.pdf. Cvetana Krstev, Ivan Obradović, Miloš Utvić, and Duško Vitas. 2014. A System for Named Entity ...

  • Development and Evaluation of Three Named Entity Recognition Systems for Serbian - The Case of Personal Names

    Branislava Šandrih, Cvetana Krstev, Ranka Stanković (2019)
    In this paper we present a rule- and lexicon-based system for the recognition of Named Entities (NE) in Serbian news paper texts that was used to prepare a gold standard annotated with personal names. It was further used to prepare training sets for four different levels of annota tion, which were further used to train two Named Entity Recognition (NER) sys tems: Stanford and spaCy. All obtained models, together with a rule- and lexicon based system were evaluated on ...
    NER, Named Entity Recognition Systems, Serbian, Personal Names
    ... 895 sen- tences, respectively). We named this gold test set STUDENTS-GOLD. As we wanted to have an independent text of the similar structure and content we prepared an additional set of news articles from Danas daily journal. This was one of the source journals for the STUDENTS-GOLD, but for this new ...
    ... example given in the same sub- 8Training Stanford NER, https://nlp.stanford. edu/software/crf-faq.shtml#a section, an output file has the following content: T1 ROLE 0 14 srpski reditelj T2 PERS_FULL 16 39 Aleksandar Saša Petrović After running STANFORDNER on a text, an output is provided in already ...

  • Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs

    John Nyame (2024)
    The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...
    Carbon Capture, Utilization and Storage
    ... Captured CO-> The desalination utilization approach allows captured CO2 to aid in transforming brine to water by removing the dissolved solid content [14]. Clean water is used for agro and industrial purposes. Desalination plants barely employ CO2 to perform the desalination process due to economic ...
    ... out of concern for climate change. Natural gas produced contains around 9 % CO- from the reservoir some 2500 meters below sea level. The CO> content is unusual for most gas fields in the Norwegian sector of the North Sea [97]. The process selected for capturing the CO> was the use of the absorption ...
    ... (accessed on 12 July 2021) [99] Global-Projects-Map 2021. Available online: https://32z7n56499nov99m251h4e9t8- wpengine.netdna-ssl.com/bookstore/wp-content/uploads/sites/2/2021/03/Global- CCS-Projects-Map.pdf (accessed on 12 July 2021) [100] ATHOS. Available online: https://WWw.ccusnetwork.eu/netw ...

  • P-T analiza uglja RB Kolubara

    Rada Vitomir (2024)
    Rudarski basen Kolubara predstavlja jedno od najvažnijih ležišta lignita u Republici Srbiji i ključni je faktor u snabdevanju zemlje energijom. Kvalitet uglja iz ovog basena direktno utiče na efikasnost termoelektrana i zadovoljenje energetskih potreba. U ovom radu, opisan je značaj tehničke i elementarne analiza uglja kako bi se utvrdili fizičko-hemijski parametri uglja iz Rudarskog basena Kolubara. U drugom delu rada dat je opis P-T analize uglja i njen značaj za ocenu mogućnosti čišćenja uglja. Takođe, dati su i rezultati ...
    Rudarski basen Kolubara, pliva tona analiza, lignit, kvalitet uglja, energetska efikasnost
    ... heat content; Extensivelyused · Highly desirable decayed plant — low sulfur as afuelbecause · fuelbecauseofits matterin content;limited Ofits high heat high heat content swamps and suppliesinmost _ cOntentand large and |°W.5U|fUl' bogs;lowheat · „areas supplies; normally conte_nt, content has ...
    ... has a supplies are high sulfur limitedin most content areas Slika 2. Klasifikacija uglja 2.3. Elementarna i tehnička analiza uglja Elementarna i tehnička analiza uglja. Rovni ugalj koji se dobija otkopavanjem iz ležišta sastoji se iz organske mase gorućeg dela i neorganskih materija (balasta) ...

  • Синтеза и карактеризација керамике на бази сфена

    Jelena R. Pantić (2015-07-10)
    Механохемијска активација стехиометријске смеше реактаната TiO2, SiO2 и CaCO3 показала се као веома успешна и једноставна метода за добијање сфена (CaTiSiO5). На основу мерења релативних густина свих синтерованих узорака установљено је да максималну густину од 93,9 % имају узорци који су активирани 30 минута и синтеровани на 1200 °С. Микроструктурном анализом, тј. анализом слика синтерованих узорака активираних 30 минута, које су добијене скенирајућом електронском микроскопијом, опажа се бимодална расподела величине зрна, са просечном величином од 3 μm, односно 5 ...
    сфен, механохемија, Ритвелдова метода, оптичка спектроскопија, микроструктурна анализа, фазна трансфоpмација, чврсти раствори
    ... study of malayaite, CaSnSiO5. Am Mineral 81: 595-602. http://www.springerlink.com/content/?Author=L.+G.+Gerasimova http://www.springerlink.com/content/?Author=M.+V.+Maslova http://www.springerlink.com/content/?Author=E.+S.+Shchukina Докторска дисертација ...
    ... stoichiometry of sphene and different Cr(NO3)9H2O content (CaTi1−yCrySiO5, with y = 0.0003, 0.0005, 0.0010, 0.0015, 0.0035 and 0.0050) were successfully obtained using mechanochemical activation. The optimum pigment (best hue with lowest Cr content) is obtained with 0.1 % Cr, and the highest brown ...
    ... le/pii/S0955221906002688 http://www.sciencedirect.com/science/article/pii/S0955221906002688 http://pubs.rsc.org/en/content/articlelanding/2002/jm/b201802k http://pubs.rsc.org/en/content/articlelanding/2002/jm/b201802k http://www.sciencedirect.com/science/article/pii/S0272884212005810 http://www.sciencedirect ...