Претрага
248 items
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Analiza uporednog praćenja temperature površine ohlađenih materijala pri njihovom zagrevanju do ambijentalne temperature
U datom eksperimentalnom radu su termografskim metodama ispitivane termofizičke karakteristike različitih materijala. Za ispitivanja su izabrani mesingani niovčić, ugalj i pelet, jer imaju različita termoizolaciona svojstava i različito stanje površine. Uzorci su najpre hlađeni, a zatim je njihovo zagrevanje na sobnoj temperaturi praćeno termalnom kamerom. U drugom delu eksperimenta, korišćena je impulsna termografija, a zagrevanje površine uzoraka vršeno je svetlosnom pobudom.Stevan Đenadić, Ljubiša Tomić, Vesna Damnjanović, Katarina Nestorović. "Analiza uporednog praćenja temperature površine ohlađenih materijala pri njihovom zagrevanju do ambijentalne temperature" in 65. godišnja konferencija za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehniku ETRAN 2021, Etno selo Stanišići, Republika Srpska, 8-10. septembar 2021., Društvo za ETRAN Beograd i Akademska misao Beograd (2021)
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Low-temperature phase transition and magnetic properties of K3YbSi2O7
Predrag Dabić, Volker Kahlenberg, Biljana Krüger, Marko Rodić, Sabina Kovač, Jovan Blanuša, Zvonko Jagličić, Ljiljana Karanović, Václav Petříček, Aleksandar Kremenović (2021)alkalni silikati elemenata retkih zemalja, fazni prelazi, magnetne karakteristike, razdvajanje kristalnog polja, silikati lantanica... modifications were determined. The magnetic properties of K3YbSi2O7 are interpreted based on the features of its crystal structures. Using group theory, the structural phase transition between �- and �0-K3YbSi2O7 was analyzed in more detail and its possible influence on the magnetic properties of ...
... both modifications were determined. The magnetic properties of K;YbSi,O7 are interpreted based on the features of its crystal structures. Using group theory, the structural phase transition between f- and £’-K3YbSi,O, was analyzed in more detail and its possible influence on the magnetic properties of K;YbSi ...
... 589 LT phase transition and magnetic properties of K3;YbSi,O7 3.2. Symmetry relationships between two K3YbSi2O7 poly- morphs Considering group theory, the structures of our two poly- morphs of K3YbSi2O7 are in a crystallographic group– subgroup relationship: the low-temperature-induced transi- ...Predrag Dabić, Volker Kahlenberg, Biljana Krüger, Marko Rodić, Sabina Kovač, Jovan Blanuša, Zvonko Jagličić, Ljiljana Karanović, Václav Petříček, Aleksandar Kremenović. "Low-temperature phase transition and magnetic properties of K3YbSi2O7" in Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials, International Union of Crystallography (IUCr) (2021). https://doi.org/10.1107/S2052520621006077
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Анализа утицаја искоришћења у преради на резултате оптимизације површинских копова
Стефан Митић (2024)Одређивање оптималних граница површинског копа је сложен и итеративни процес који захтева мултидисциплинарну експертизу, софистициране технике анализе и пажљиво разматрање геолошких, рударских, економских,техничких, еколошких и друштвених фактора. Оптимизација подразумева генерисање серије шкољки, површинског копа на основу различитих фактора прихода (Revenue factor) са итеративним кораком промене цене метала у односу на базну цену. Свака генерисана шкољка представља инкрементално повећање запремине резерви према инкременталном повећању продајне цене метала. Велики број техно -економских фактора утиче на овај процес, и промена сваког од њих ...оптимизација површинског копа, анализа границе копа, оптимална контура копа, лежиште Бувач, профит, искоришћење у преради, трошкови прераде руде... Optruaton | GMSUM 542 f Edt Comstrants | ___Fe (onmej o Ž 74 - 32| | [6p Ppressons | |D_MSID 542 f. |O serEement| |__Feđomme) o Ž 74 7 – a| . Outut Block processing cost acjustment Tactors- |O None (8)Mode! O Cslculafe- Processina Path Groups % Defnion 'ChackDsls- ep Gancal Recepi Cnnuka 4.14. ...
... |sama Proc:CoEt c Rocov. Raiog aut Lowacut Trresh 'Constants | |__Fa nonne) o 7 i=l os 7 z| 2| [GGp UserElement | |__Fa omne) o | i=l og 7 [Wnl Block processing cost adiustment factors Cnone (9Mogel O Caloatats: || Processing Path Groups Name Defnion Edt GnectData ep OGancsl ocep! Cnuka 4 ...
... Oyeopounoe naaHupatba noespuuHcKux KonoGa. beorpal: Py}lapcKo-reoomku (pakynTerT. 17.Lane, K. F., 1988. The Economic Definition of Ore Cutoff Grades in Theory and. Ist edition ed. s.l.:Communications Ltd. 18.Lee, T. D., 1984. Planning and mine feasibility study—4n owne?r s perspective. Spokane, Proceedings ...Стефан Митић. Анализа утицаја искоришћења у преради на резултате оптимизације површинских копова, 2024
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Multiple-Criteria Decision-Making in Mine Development Planning
Sanja Bajić (2023)The Borska Reka ore deposit is an experimental location where developed methodologies have been applied. It is the largest ore body within the Bor mining complex, which has been the subject of numerous studies and analyses for more than three decades. The paper focuses on the application of FAHP and the VIKOR method to address ranking of alternatives and select the optimal mining method by means of fuzzy multicriteria optimization.Sanja Bajić. "Multiple-Criteria Decision-Making in Mine Development Planning" in Proceedings of the 5th International Underground Excavations Symposium, 5-6-7 June 2023, Istanbul, Topkapi : Dinç Ofset Mat. Rek. San. ve Tic. Ltd. Şti. (2023)
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A Tel Platform Blending Academic And Entrepreneurial Knowledge
... The Open Courseware Movement in Higher Education: Unmasking Power and Raising Questions about the Movement's Democratic Potential. Educational Theory, 63(1), 87-110. [3] Bissell, A. N. (2009). Permission granted: open licensing for educational resources. Open Learning, 24(1), 97-106. [4] ...Ivan Obradović, Ranka Stanković, Jelena Prodanović, Olivera Kitanović. "A Tel Platform Blending Academic And Entrepreneurial Knowledge" in Proceedings of the The Fourth International Conference on e-Learning (eLearning-2013), September 2013, Belgrade, Serbia, Belgrade, Serbia : Belgrade Metropolitan University (2013)
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Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides
Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor (2019)Internal Dinarides, Drina-Ivanjica thrust sheet, Deformation history, K–Ar dating, Obduction, Structural analysis... Paldontologie- Abhandlungen, 253(2—3), 293—311. Gerzina, N., & Csontos, L. (2003). Deformation sequence in the Vardar Zone: surroundings of Jadar Block; Serbia: Ann. Umniv. Sci. Budapestinensis. Sect. Geol, 35, 139—140. Goffć, B., Michard, A., Kienast, J. R., & Le Mer, O. (1988). A case of ob ...
... and applications of the illite Kibler index: measuring reaction progress in low-grade metamorphism. Diagenesis and Low-Temperature Metamorphism, Theory, Methods and Regional Aspects, Seminarios. Sociedad Espanola: Sociedad Espanola Mineralogia (pp. 53—64). Agard, P., Zuo, X., Funiciello, F., ...
... Late Jurassic-Early Cretaceous age population. Tectonic evolution of the Drina-Ivanjica thrust sheet Fig. 3 Fotographs and interpretations. of key observations. The stratigraphic younging direction is upwards in all pictures. For outcrop locations see Fig. 2a. a Remnants of tight to isoclinal ...Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor. "Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides" in Swiss Journal of Geosciences (2019)
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Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy
Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag (2014)... frame- lowing the Permian- 'Triassic biological crisis (Flagel 1982, 2002; Senow- bari-Daryan et al. 1993). This factor with the Late Ani- sian block tectonics coupled with sea-level rise in the builders were less important fo: area, has resulted in widespread platform progradation (Farabegoli ...
... of the study area (northwest of Mindszent- k4lla, Fig 1c) (Budai et al. 1999). During the Pelsonian (Balatonic45 ammonoid zone), synsedimentary block faulting. has caused the breakup of the uniform ramp and abrupt change in facies development (Fig. 2). Based on Budai & Veros (1992), platform ...
... ?SANDOR KOVACS?, ANNA ORAVECZ-SCHEFFER , FELICITASZ VELLEDITS', OLGA PIROS* & GABOR CSILLAG* Received: January 2, 2014; accepted: May 14, 2014 Key words: Anisian, Ladinian, carbonates, lithostratigraphy, biostratigraphy, conodonts, radiolarians, diagenesis, correlations. Abstyact. A shallow ...Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag. "Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy" in Rivista Italiana di Paleontologia e Stratigrafia (2014)
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Demise of the Wetterstein Carbonate Platform and onset of the Dachstein Carbonate Platform recorded in deep-water successions of the East Bosnian-Durmitor megaunit (Pliješevina, northern Montenegro, Dinarides)
Milica Mrdak, Eva Wagerer, Milan Sudar, Nevenka Djerić, Martin Đaković, Hans-Jürgen Gawlick. "Demise of the Wetterstein Carbonate Platform and onset of the Dachstein Carbonate Platform recorded in deep-water successions of the East Bosnian-Durmitor megaunit (Pliješevina, northern Montenegro, Dinarides)" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2024). https://doi.org/10.31577/GeolCarp.2023.26
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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 ...... latter re- source, SIMPLE, constitutes the semantic level of a quadri- partite Italian lexicon. Its structure is inspired by Gener- ative Lexicon theory (Pustejovsky, 1995) and in particular the notion of qualia structure which is used to organise the Semantic Units (SemUs) which constitute the basic ...
... Ken Farø, et al., editors. (2003). Den danske ordbog, bd. 1-6, volume 1-6. Gyldendal. https://ordnet.dk/ddo en. Fellbaum, C. (2010). WordNet. In Theory and applica- tions of ontology: computer applications, pages 231– 243. Springer. Gantar, P. and Krek, S. (2011). Slovene lexical database. In Natural ...
... dictionary, which is applicable to further meanings related There are cases when the senses may be equal but the definitions in both dictionaries differ in key aspects none There is no match for this sense Table 1: Semantic relationships according to SKOS used for WSA task were selected based on the Danish ...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 . "A Multilingual Evaluation Dataset for Monolingual Word Sense Alignment" in Proceedings of the 12th Conference on Language Resources and Evaluation (LREC 2020), Marseille, European Language Resources Association (ELRA) (2020)
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VENTEX: An Expert System for Mine Ventilation Systems Analysis
Analiza sistema za ventilaciju je komleksan proces, koji bazira na proračunu brojnih parametara, koji se odnose na: stanje mreže, provetrenost, stabilnost sistema, gubitke vazduha, klimatske uslove, gasno stanje, ugroženost od požara i opasne prašine. Navedeni problemi se uspešno rešavaju paketom SimVent, ali potpuno razumevanje i korišćenje dobijenih rezultata zahteva angažovanje iskusnog specijaliste iz oblasti ventilacije. Rešenje je nađeno u kreiranju ekspertnog sistema VENTEX, čija je baza znanja formalizacija ekspertskog znanja iz oblasti ventilacije rudnika. U radu je prikazana metodologija ...... reliable solution for this problem is vital for the safety of the working process in mines with underground exploitation. Contemporary mining theory already operates with a number of mathematical methods which can be used to solve mine ventilation problems. These methods are used in current ...
... consists of facts and heuristics which can be represented by means of rules, frames, semantic networks and other formalisms. Since knowledge is the key factor in problem solution and decision making, the quality and usability of an expert system is basically determined by the accuracy and ...Ranka Stanković, Nikola Lilić, Ivan Obradović. "VENTEX: An Expert System for Mine Ventilation Systems Analysis" in YU Info '96 Brezovica, Društvo za informacione sisteme i računarske mreže (1996)
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Модел померања терена услед утицаја рударских радова на основу радарских сателитских снимака
Зоран Гојковић (2023)Површински коп, као систем који обезбеђује енергетску стабилност или снабдевање сировинама које су од изузетне важности за привредни напредак, својим функционисањем утиче на околна насељена места. Међу бројним аспектима овог утицаја, може се издвојити издвојити и анализирати утицај вертикалних и хоризонталних померања која се јављају на површи терена. Мониторинг вертикалних и хоризонталних померања површи терена околних насељених места треба да има што бољу временску резолуцију (временски период између праћења деформација) како би се вертикална и хоризонтална померања контролисала и ...Зоран Гојковић. Модел померања терена услед утицаја рударских радова на основу радарских сателитских снимака, Београд : Универзитет у Београду, Рударко - геолошки факултет, 2023
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The analysis of the geothermal energy capacity for power generation in Serbia
Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk (2013)... ~27315 (3) The Giggenbach [9] Na-K geothermometer has formula: t [ C] Na K � � � � � � � � 1390 175 27315 . log . (4) Fundamental theory of geothermometers Silicon is second highest element (first is oxygen) in the Earth's crust. It is a metalloid, under carbon in the Periodic table ...
... generate 70 MWt, of which some 30 MWt the Vranjska Banja alone. Total power (for the five tested resources) is estimated at about 2200 TJ per year. Key words: geothermal water, geothermometer, power generation, Serbia Introduction Chemical and isotopic geothermometers are important 'tools' in the research ...Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk. "The analysis of the geothermal energy capacity for power generation in Serbia" in Thermal Science, National Library of Serbia (2013). https://doi.org/10.2298/TSCI120215033S
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Investigation of quantitative indicators of anisotropy based on longitudinal elastic waves propagation velocities with uncertainty
... Ministry of Education, Science and Technological Development, Republic of Serbia. REFERENCES ALEFELD G. and MAYER G. (2000) Interval analysis: theory and applications. Journal of Computational and Applied Mathematics, 121, pp. 424–464. ESBERT R. M. (2007) Alteration of granite stone used in building ...Miloš Gligorić, Jelena Majstorović, Suzana Lutovac. "Investigation of quantitative indicators of anisotropy based on longitudinal elastic waves propagation velocities with uncertainty" in Underground Mining Engineering, Belgrade : University of Belgrade - Faculty of Mining and Geology (2018). https://doi.org/10.5937/PodRad1832001G
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Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems
Dejan Ćebić, Nebojša M. Ralević (2021)Dejan Ćebić, Nebojša M. Ralević. "Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems" in Journal of Mathematical Chemistry, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10910-021-01253-3
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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)... therefore constitute a bottleneck in methanogenesis, as is the case in other environments (Cater et al., 2014). The results consis- tent with this theory, indicating greater production of methane from detritic lignites, can also be found in the work of Bucha et al. (2020), who compared the biotechnological ...
... education and data analysis. Palaeontol. Electron. 4, 1–9. Haney, R.L., Haney, E.B., Smith, D.R., Harmel, R.D., White, M.J., 2018. The soil health tool— theory and initial broad-scale application. Appl. Soil Ecol. 125, 162–168. https://doi. org/10.1016/j.apsoil.2017.07.035. Hofrichter, M., Fakoussa, R., 2001 ...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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Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan”
... 2011-2014. 10. References BOERSHCH-KOMPONIETS V. et al. Mine surveying. Moscow: Mir Publisher, 1989. CHANDRA, A. M. Surveying - problem solving with theory and objective type questions. New Delhi: New Age International (P) Ltd., Publishers, 2005. FACULTY OF MINING AND GEOLOGY. The main mining project ...Aleksandar Milutinović, Aleksandar Ganić, Thamer Rayes Diyab, Rade Tokalić, Meri Ganić. "Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan”" in Revista Escola de Minas, School of Mines Magazine, Sao paulo, Brasil : SciELO (2015)
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The Newton method for solving nonlinear equations based on aggregation operators
Nebojša M. Ralević, Dejan Ćebić (2019)Nebojša M. Ralević, Dejan Ćebić. "The Newton method for solving nonlinear equations based on aggregation operators" in XLVI International Symposium on Operational Research SYM-OP-IS, Kladovo, 15-18.9.2019, Универзитет у Београду (2019)
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Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research
магнетометријска испитивања, цик-цак и паралелна аквизиција у ходајућем моду, линеарне аномалије, археологија... n. Key as for Fig 1. Fig. 3b Contour map of a vertical gradient of TMI in N-S orientation. Key as for Fig 1. Archaeology and Science 10 (2014) 98 Petković et al - Advantages and Disadvantages of a Parallel...(93-110) Fig. 3c Contour map of a vertical gradient of TMI in N-S orientation. Key as ...
... n. Key as for Fig 1. 101 Archaeology and Science 10 (2014)Petković et al - Advantages and Disadvantages of a Parallel...(93-110) Fig. 5b Contour map of a vertical gradient of TMI in E-W orientation. Key as for Fig 1. Fig. 5c Contour map of a vertical gradient of TMI in E-W orientation. Key as for ...
... for automatic sampling in Fig. 1 Illustration of N-S orientation of traverses. Key: a. zigzag fashion; b. parallel fashion; c. mid-fi eld in parallel fashion. Fig. 2 Illustration of E-W orientation of traverses. Key as for Fig 1. 95 Archaeology and Science 10 (2014)Petković et al - Advantages ...Mirko Petković, Vesna Cvetkov, Branislav Sretenović. "Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research" in Arheologija i prirodne nauke (2014)
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Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining
Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović (2019)... the field of mining as well [10,22–27]. The main advantage of this method is ease of use, followed by the quality of output data. It relies on the theory of the relative weight determination of the factors in decision-making. It is based on the measurements made by comparing pairs of data, and it depends ...
... alternative choices. Technical availability (TA) is a characteristic which describes and evaluates the work and maintenance of a realistic system. In theory, availability represents the probability of a technical system being able to work at any given time t, or being able to join in on the work, and of ...Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović . "Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining" in Energies, MDPI (2019). https://doi.org/https://doi.org/10.3390/en12122245
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Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals
Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić (2020)As the number of poorly soluble drugs is increasing, nanocrystals have become very interesting due to wide range of application possibilities. Curcumin was used as a model active ingredient in this work. Even though it has many proven positive effects, due to its physicochemical issues, its possibilities have not been fully exploited. The goal of this work was to select optimal conditions for a top-down method for curcumin nanosuspension production, and to perform their comprehensive characterization applying complementary methodologies: ...Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić. "Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals" in Review on advanced materials science, Walter de Gruyter GmbH (2020). https://doi.org/10.1515/rams-2020-0043