Претрага
479 items
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A survey of greenhouse gases production in central European lignites
Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska (2021)... contain pyrite.When py- rite is exposed to air, in the presence of humidity, it is oxidized, forming sulphuric acid (Dos Santos et al., 2016). This process contributes to the acidification of the environment and may increase the pore solute con- centration. This is because, unlike pyrite, sulphuric acid ...
... utilizing only a narrow range of substrates such as H2/CO2, formate, acetate, methanol, and methylated compounds. Methanogenesis is in fact a multistage process in which exact CH4 formation by methanogenic Archaea is preceded by the degradation of complex organic molecules by a consortium of vari- ous micr ...
... to N2O by nitrification re- quires the availability of oxygen, the concentration of which is a factor that significantly determines the rate of the process (Khalil et al., 2004). The experimental treatments were oxygen-free so nitrification could not occur. On the other hand, availability of NO3 - , which ...Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska. "A survey of greenhouse gases production in central European lignites" in Science of The Total Environment, Elsevier (2021). https://doi.org/10.1016/j.scitotenv.2021.149551
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Prognoza operativne efikasnosti aktivnog podzemnog rudnika zasnovana na teoriji sivih sistema
Svetlana M. Štrbac-Savić (2016-06-10)Efikasnost predstavlja preduslov za opstanak svake rudarske kompanije, posebno u uslovima izuzetno konkurentnog trţišnog okruţenja kao što je to rudarska industrija. Efikasnost oznaĉava sposobnost kompanije da ispuni svoje kratkoroĉne ili dugoroĉne ciljeve. Operativna efikasnost se definiše kao odnos izmeĊu ulaznih parametara potrebnih za odvijanje proizvodnje i pokazatelja dobijenih proizvodnjom. U kontekstu rudarskog poslovanja, operativna efikasnost se odnosi na vreme potrebno da se mineralno dobro transformiše u novĉana sredstva. Visoka operativna efikasnost se postiţe kada se ostvari prava kombinacija karakteristika ...podzemni rudnik, operativna efikasnost, prognoza, teorija sivih sistema, stohastiĉke diferencijalne jednaĉine, simulacija... company‘s ability to meet its short or long-term goals. Operational efficiency is defined as the ratio between the input required to run production process and the output gained from the production. In the context of mining business, operational efficiency refers to the length of time until mineral ...
... indicators, that is, business numbers. It is very important to emphasize the forecasting acts serve as a basis for further planning. The forecasting process is performed in a specific environment. If we take into consideration the fact that the environment is changed over time then it is obvious that ...
... complex than it was just a few years ago. There are typically many variables, which are directly or indirectly associated with the forecasting process. This paper investigates the relationship between ore production rate, fixed costs, revenues, production costs, working days, and degree of use ...Svetlana M. Štrbac-Savić. "Prognoza operativne efikasnosti aktivnog podzemnog rudnika zasnovana na teoriji sivih sistema" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-06-10)
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Production of morphological dictionaries of multi-word units using a multipurpose tool
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, multi-word units, noun phrases, query expansion... other languages featuring complex morphological structures. After realizing that the development of such a dictionary manually is an extremely slow process, we endeavored towards a procedure aimed at automated production of MWU dictionary lemmas, which is also outlined in this paper. The procedure was ...
... nominative case form. Consequently, it can be deduced that only the basic structure adjective/noun applies here. Of course, not all MWUs are so easy to process. For in- stance, for the MWU vojna tajna ‘military secret’ a dictionary look-up offers the following possibilities: vojna vojni ‘military’ A nom ...
... be expected, it has been already shown that the MWU dictionary can also be very useful in text disambiguation [13], and further in the parsing process [14]. We would like to point out another interesting aspect of MWUs which can be exploited in the processing of named entities, as the initial phase ...Ranka Stanković, Ivan Obradović, Cvetana Krstev, Duško Vitas. "Production of morphological dictionaries of multi-word units using a multipurpose tool" in Proceedings of the Computational Linguistics-Applications Conference, October 2011, Jachranka, Poland, Jachranka, Poland : PTI - Polish Information Processing Society (2011)
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Multi-word Expressions for Abusive Speech Detection in Serbian
Ovaj rad predstavlja istraživanja na usavršavanju i unapređenju srpske verzije rečnika Hurtlex, višejezičnog leksikona uvredljivih reči. Posebnu pažnju posvećujemo dodavanju izraza sa više reči (polileksemskih jedinica) koji se mogu smatrati uvredljivim, jer su takvi leksički zapisi veoma važni za postizanje dobrih rezultata u mnoštvu zadataka otkrivanja uvredljivog jezika. Srpski morfološki rečnici se koriste kao osnova za čišćenje podataka i stvaranje rečnika. Istaknuta je veza sa drugim leksičkim i semantičkim resursima na srpskom jeziku i predviđena je izgradnja sistema za ...... finely-tuned, task specific language tools and resources, especially for morphologically rich and low- resource languages such as Serbian. In the process of building a conceptual framework of abusive language, special attention is paid to Multi-word expressions (MWEs) which allow for better and more ...
... language detection already exist. Serbian Morphological Dictionaries are certainly a staple in processing texts in Serbian (Krstev, 2008). In order to process implicitly abusive language, we need to take into account the usage of non-literal language, the rhetorical devices that are so often a part of such ...
... identification of misogyny in English and Italian tweets, while in Colla et al. (2020) HurtLex was used in a system submission at OffensEval 2020, in the process of fine-tuning offensive language models 77 for Danish, Turkish, and English. In the research presented in this paper, we are improving the Serbian ...Ranka Stanković, Jelena Mitrović, Danka Jokić, Cvetana Krstev. "Multi-word Expressions for Abusive Speech Detection in Serbian" in Proceedings of the Joint Workshop on Multiword Expressions and Electronic Lexicons, Association for Computational Linguistics (2020)
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Classification of Terms on a Positive-Negative Feelings Polarity Scale Based on Emoticons
Mihailo Škorić (2017)The goal of this paper is to draw attention to the possibility of using emoticon-riddled text on the web in language-neutral sentiment analysis. It introduces several innovations in the existing framework of research and tests their effectiveness. It also presents a software tool especially made for that purpose, explains how it builds a database with sentimental value of terms and offers the user manual. Finally, it presents a software tool that tests the new database and gives some examples ...... buttons located on the bottom of the screen (Figure 5). In both cases, due to possible irreversible data loss, the user will need to confirm the process in an additional dialog box that will appear on the screen. Once the user is satisfied with the settings he can switch to the sec- ond part of the ...
... translate XSL function all unwanted characters (all characters except for the small Latin letters and digits) are converted into whitespace. This process can result in incorrect words if the user accidentally entered an undesirable character during typing (Mar?ia) or if he deliberately used a special ...
... evaluation. The algorithms used are still far from perfect, and in there is plenty of room for improvement and progress considering them. Documented process of the extraction and transformation should contribute to future studies of the same or similar ideas. The next step can be extracting an expanded ...Mihailo Škorić. "Classification of Terms on a Positive-Negative Feelings Polarity Scale Based on Emoticons" in Infotheca, Faculty of Philology, University of Belgrade (2017). https://doi.org/10.18485/infotheca.2017.17.1.4
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Компарација метода XRF i ICP-MS на узорцима угља и продуктима сагоревања
Бранко Костић, Ксенија Ераковић, Дејан Прелевић, Сабина Ковач, Драгана Животић. "Компарација метода XRF i ICP-MS на узорцима угља и продуктима сагоревања" in Записници Српског геолошког друштва (2023)
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E-Connecting Balkan Languages
In this paper we present a versatile language processing tool that can be successfully used for many Balkan languages. This tool relies for its work on several sophisticated textual and lexical resources that were developed for most of Balkan languages. These resources are based on several de facto standards in natural language processing.... were included as units of text logical layout. At the beginning of the alignment process all segments coincided with sentences automatically tagged by Unitex. The XAlign system [1] was used for the alignment process. Starting from the French version, the goal of the alignment was to establish ...Cvetana Krstev, Ranka Stanković, Duško Vitas, Svetla Koeva. "E-Connecting Balkan Languages" in Proceedings of the Workshop Workshop on Multilingual resources, technologies and evaluation for Central and Eastern European Languages, 17 September 2009, eds. C. Vertan, S. Piperidis, E. Paskaleva and Milena Slavcheva, Borovets, Bulgaria : Association for Computational Linguistics Stroudsburg, PA, USA (2009)
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A Lexical Approach to Acronyms and their Definitions
In this paper we present a comprehensive approach to acronyms for Natural-Language Processing (NLP) of Serbian texts. The proposed procedure includes extraction of acronyms and their definitions that are usual Multi-Word Units (MWUs), shallow parsing of MWUs that enables MWU lemmatization and production of entries in morphological electronic dictionaries, both for MWU and acronyms, that are provided with grammatical, syntactic, semantic and domain information. This approach enables representation that reflects complex relations between acronyms and their definitions.... mirovne snage na Kosovu – +NProp+Org+DOM=Mil (the name is in the plural, a proper name, representing an organization from a military domain) 5. Process MWU names in order to obtain all their inflected forms associated with rich informa- tion: a lemma and associated acronym, grammati- cal categories ...
... result of Step 4: do they inflect, what is their grammatical and natural gender and number. (6) KFOR inflects and is in the masculine gender. 7. Process acronyms obtained in Step 4 using in- formation obtained in Step 4 in order to obtain in- flected forms of acronyms, where applicable, and associate ...Cvetana Krstev, Duško Vitas, Ranka Stanković. "A Lexical Approach to Acronyms and their Definitions" in Proceedings of the 7th Language & Technology Conference, November 27-29, 2015, Poznań, Poland, Springer (2015)
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The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)
... water level in the observation well, as well as at the control gate (Figure 4). The decrease in the groundwater level at PP-3 during the measurement process (7 h) was ∆h = 7.49 m, which is indicative of intensive interaction of the water in the tunnel and the hydrogeologic environment within the zone of ...
... groundwater level fluctuations at PP-3, there were also changes in groundwater quality. Vertical probing of EC in observation well PP-3 indicated mixing process of highly-mineralized (Total dissolved solids—TDS) groundwater (detected at sampling point 4 + 230 m in the tunnel, EC: 5000–10,200 µS/cm) and the ...Marina Čokorilo Ilić, Ana Mladenović, Marina Ćuk, Igor Jemcov. "The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)" in Water, MDPI AG (2019). https://doi.org/10.3390/w11030603
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Application of ERT in the study of debris-flow source area: Case study Selanac debris flow
Dragana Đurić, Jelka Krušić, Biljana Abolmasov. "Application of ERT in the study of debris-flow source area: Case study Selanac debris flow" in 11th Congress of the Balkan Geophysical Society, Volume 2021, Online-Romania, 10 -14. Oct 2021,, European Association of Geoscientists & Engineers (2021). https://doi.org/10.3997/2214-4609.202149BGS15
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Preliminary regional landslide susceptibility assessment using limited data
Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska (2019)In this paper a heuristic approach for preliminary regional landslide susceptibility assessment using limited amount of data is presented. It is called arbitrary polynomial method and takes into account 5 landslide conditioning parameters: lithology, slope inclination, average annual rainfall, land use and maximum expected seismic intensity. According to the method, in the first stage, a gradation is performed for each of the carefully selected conditioning parameters by assigning so called rating points to the grid cells on which the ...... high, very high). By overlaying the generated TLSR model map with the available inventory map of landslides of a particular region, the validation process can then be conducted. In order to investigate the sensitivity of the basic landslide susceptibility models (TLSR models) obtained, each conditional ...
... SI-R*0.175 + AP-R*0.175 + EI-R*0.175 + LU-R*0.3 (8) WLU-TLSR500 = LT-R*0.175 + SI-R*0.175 + AP-R*0.175 + EI-R*0.175 + LU-R*0.3 (9) The validation process of these 8 additional WTLSR models is performed in the same manner as for the TLSR models using the landslide inventory maps. In the final stage ...
... doi: 10.1007/s10346-009- 0188-x ERCANOGLU, M., KASMER, O. & TEMIZ, N. (2008): Adaptation and comparison of expert opinion to analytical hierarchy process for landslide susceptibility map- ping.– Bulletin of Engineering Geology and the Environment, 67/4, 565–578. doi: 10.1007/s10064-008-0170-1 G eo ...Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska. "Preliminary regional landslide susceptibility assessment using limited data" in Geologica Croatica , Croatian Geological Society (2019). https://doi.org/10.4154/gc.2019.03
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Sistem poslovne inteligencije za upravljanje zaštitom na radu u rudarskoj industriji
Ljiljana R. Kolonja (2016-09-23)Postojeća organizacija zaštite na radu na površinskim kopovima uglja često nije umogućnosti da blagovremeno i tačno ukaže na nedostatke, koji mogu u bližoj ilidaljoj budućnosti da budu uzrok narušavanja bezbednosti radnika, ali i uzrokoštećenja materijalnih dobara rudnika. Nemogućnost donošenja pravovremenihodluka je moguće izbeći uvođenjem softverski podržanih sistema za praćenje ianalizu bezbednosti i zaštite na radu.Osnovni cilj ove doktorske disertacije je definisanje metodologije i razvoj modelasistema upravljanja zaštitom na radu, koji će omogućiti savremen, adekvatan isveobuhvatan način praćenja i analize ...... 43, 256‐268. HEPP, M., LEYMANN, F., DOMINGUE, J., WAHLER, A. & FENSEL, D. Semantic business process management: A vision towards using semantic web services for business process management. e‐Business Engineering, 2005. ICEBE 2005. IEEE International Conference on, 2005. IEEE, 535‐540 ...
... index (SWeHI): a new, user‐friendly tool for swift yet comprehensive hazard identification and safety evaluation in chemical process industrie. Process Safety and Environmental Protection, 79, 65‐80. 126 KNIESNER, T. J. & LEETH, J. D. 2004. Data mining mining data: MSHA enforcement ...
... analysis of collected data, the assessment of the performance of applied protection measures, as well as the advancement of the decision‐making process related to the improvement of applied and selection of new measures in the management of occupational safety processes in mines. The development ...Ljiljana R. Kolonja. "Sistem poslovne inteligencije za upravljanje zaštitom na radu u rudarskoj industriji" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-23)
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Речник САНУ као база терминолошких речника (на примеру речника кулинарства)
... lexicon contained in the SASA Dictionary and show how traditional vocabulary during the digitization process becomes a base for terminology dictionaries that allows different uses. In addition, the process of digitalization and modernization of work on the SASA Dictionary provide its enrichment with ...Рада Стијовић, Олга Сабо, Ранка Станковић. "Речник САНУ као база терминолошких речника (на примеру речника кулинарства)" in Словенска терминологија данас, Београд : Српска академија наука и уметности (2017)
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Rule-based Automatic Multi-word Term Extraction and Lemmatization
In this paper we present a rule-based method for multi-word term extraction that relies on extensive lexical resources in the form of electronic dictionaries and finite-state transducers for modelling various syntactic structures of multi-word terms. The same technology is used for lemmatization of extracted multi-word terms, which is unavoidable for highly inflected languages in order to pass extracted data to evaluators and subsequently to terminological e-dictionaries and databases. The approach is illustrated on a corpus of Serbian texts from ...... case we could only rank them – options N2X first, and options NXN later. Such highly ambiguous cases are, however, not very frequent. The whole process, from extraction to e-dictionary production will be illustrated with another example of MWT extracted from our evaluation corpus – električna ...
... e software tool for language resources management, developed within the University of Belgrade HLT group (Stanković et al. 2011). The whole process is automated, and takes place with very little human intervention, starting from the tokenization and lexical analysis of a raw text up to production ...Ranka Stanković, Cvetana Krstev, Ivan Obradović, Biljana Lazić, Aleksandra Trtovac. "Rule-based Automatic Multi-word Term Extraction and Lemmatization" in Proceedings of the 10th International Conference on Language Resources and Evaluation, LREC 2016, Portorož, Slovenia, 23--28 May 2016, European Language Resources Association (2016)
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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 . "Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area" in Carpathian Journal of Earth and Environmental Sciences (2016)
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Extensive vibrations of the belt conveyer drive electromotor of a bucket wheel excavator as a result of intesified wear-and-tear of its mount support
Vesna Damnjanović, Predrag Jovančić, Snežana Aleksandrović. "Extensive vibrations of the belt conveyer drive electromotor of a bucket wheel excavator as a result of intesified wear-and-tear of its mount support" in Journal of Vibroengineering (2017). https://doi.org/10.21595/jve.2016.17321
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Some examples of interactions between certain rare earth elements and soil
... manuscript that has been accepted for publication in the Journal of the Serbian Chemical Society but has not yet been subjected to the editing process and publishing procedure applied by the JSCS Editorial Office. Please cite this article as Z. Nikolovski, J. Isailović, D Jeremić, S. Kovač, I ...
... glass bottles and were agitated for 12 h at a rotational shaker for the soils to be saturated with the ions from the solutions. After the saturation process, the suspensions were filtered and the soil samples were dried for the extraction. The same solutions used for soil saturation were analyzed by ICP-OES ...Zlatko Nikolovski, Jelena Isailović, Dejan Jeremić, Sabina Kovač, Ilija Brčeski. "Some examples of interactions between certain rare earth elements and soil" in Journal of the Serbian Chemical Society, National Library of Serbia (2021). https://doi.org/10.2298/JSC211006095N
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Multiword Expressions between the Corpus and the Lexicon: Universality, Idiosyncrasy and the Lexicon-Corpus Interface
Verginica Barbu Mititelu, Voula Giouli, Kilian Evang, Daniel Zeman, Petya Osenova, Carole Tiberius, Simon Krek, Stella Markantonatou, Ivelina Stoyanova, Ranka Stankovic, Christian Chiarcos (2024)Predstavljamo trenutne aktivnosti na definisanju interfejsa leksikona i korpusa koji će služiti kao referenca u prikazu polileksemskih jedinica - višečlanih izraza - (različitih tipova - imenskih, glagolskih, itd.) u specijalizovanim leksikonima i povezivanju ovih unosa sa njihovim pojavljivanjima u korpusima. Konačni cilj je korišćenje ovakvih resursa za automatsko identifikovanje višečlanih izraza u tekstu. Uključivanje nekoliko prirodnih jezika ima za cilj univerzalnost rešenja koje nije usredsređeno na određeni jezik, kao i prilagođavanje idiosinkrazijama. Raspravljaju se izazovi u leksikografskom opisu višerečnih ...Verginica Barbu Mititelu, Voula Giouli, Kilian Evang, Daniel Zeman, Petya Osenova, Carole Tiberius, Simon Krek, Stella Markantonatou, Ivelina Stoyanova, Ranka Stankovic, Christian Chiarcos. "Multiword Expressions between the Corpus and the Lexicon: Universality, Idiosyncrasy and the Lexicon-Corpus Interface" in Proceedings of the Joint Workshop on Multiword Expressions and Universal Dependencies (MWE-UD) @ LREC-COLING 2024, Turin, May 25, 2024, ELRA and ICCL (2024)
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Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko-energetskim kompleksima
Jelena R. Malenović - Nikolić (2016-07-12)Efikasnost funkcionisanja sistema upravljanja zaštitom životne sredine u rudarskoenergetskimkompleksima zavisi od stepena sprovođenja usvojene politike zaštiteživotne sredine i primene preventivnih mera zaštite životne sredine. Nedostatakfinansijskih sredstava za unapređivanje tehnologije eksploatacije, transporta, pripreme iprerade energetskih mineralnih sirovina u našim rudarsko-energetskim kompleksima,negativno utiče na ostvarivanje ciljeva zaštite životne sredine, a posledice radnihaktivnosti rudarsko-energetskih kompleksa dovode do smanjenja nivoa kvalitetavazduha, vode i zemljišta...rudarsko-energetski kompleks, životna sredina, sistem upravljanja,višekriterijumsko odlučivanje, modeliranje... the analytic hierarchy process: Litigation— or—conflict resolution, Mathematical Modelling 9, (3-5), 1987, pp. 251-261 211. Saaty, T.L., G. Vargas, Models, Methods, Concepts & Applications of the Analytic Hierarchy Process, The Seven Pillars of the Analytic Hierarchy Process, International Series ...
... 36 (1), 2009, pp. 209-218 140. Leung, C., Lam, K.C., Cao, D., Implementing The Balanced Scorecard Using The Analytic Hierarchy Process & The Analytic Network Process, Journal of the Operational Research Society 57, 2006, pp. 682-691 141. WORLD ENERGY OUTLOOK 2015 FACTSHEET, Global energy trends ...
... 5.pdf 200. Dean, J., Mark P. Does decision process matter? A study of strategic decision- making effectiveness’. Academy of Management Journal 39, 1996, pp. 368-396 201. Calantone, R., Benedetto, C., Schmidt, J., Using the Analytic Hierarchy Process in New Product Screening, The Journal of Product ...Jelena R. Malenović - Nikolić. "Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko-energetskim kompleksima" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-07-12)
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Determination of Mechanical Properties of Altered Dacite by Laboratory Methods
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 ...... the present study. Minerals 2021, 11, 813 5 of 19 Figure 3. Procedure for preparation of specimen for laboratory tests: (a) drilling process, (b) cutting process. Figure 4. Scheme of tested samples preparation. The dimensions of the specimens used in the UCS test differ depending on the recom- ...
... content and size of quartz crystals. So, as the content of smaller quartz particles increases, the compressive strength increases. In the AD sample, the process of quartz resorption is pronounced, and biotite occurs in idiomorphic to hypidiomorphic laminated particles. In addition, the separation of metallic ...Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović. "Determination of Mechanical Properties of Altered Dacite by Laboratory Methods" in Minerals, MDPI AG (2021). https://doi.org/10.3390/min11080813