Претрага
1126 items
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Asbestos-Based Pottery from Corsica: The First Fiber-Reinforced Ceramic Matrix Composite
Asbestos-containing pottery shards collected in the northeast of Corsica (Cap Corse) and dating from the 19th century, or earlier, have been analyzed by SEM-EDS, XRPD, FTIR and Raman microspectroscopy. Blue (crocidolite) and white (chrysotile) asbestos fiber bundles are observed in cross-sections. Most of the asbestos is partly or totally dehydroxylated, and some transformation to forsterite is observed to occur, indicative of a firing above 800 C. Examination of freshly fractured pieces shows a nonbrittle fracture with fiber pull-out, consistent with ...... [CrossRef] Afify, A.S.; Hassan, M.; Piumetti, M.; Peter, 1.; Bonelli, B.; Tulliani, J..M. Elaboration and characterization of modified sepiolites and their humidity sensing, features for environmental monitoring,. Appl. Clay Sci. 2015, 115, 165–173. [CrossRetf] Asquier, M.; Colomban, P.; Milande, V ...
... O j - R a m a n In te ns it y Fe K /\ Ti Mn Ni 0 0 5000 10000 O 250 500 750 1000 1250 1500 Energy / eV Wavenumber / cm” Figure A4. Representative EDS (left) and Raman (right) spectra recorded on some spots of sample d (see Figure 1). References e o z a m s m s n 10. 11 ...
... C.; Gualteri, A.E.; Quartieri, S.; Rinaudo, C.; Allegrina, M.; Andreozzi, G.B. Spectroscopic study of thermal transformation of chrysotile-asbestos containing, materials (ACM). Eur. J. Mineral. 2010, 22, 535–546. [CrossRef] Ristic, M.; Czako-Nagy, L.; Music, S.; Vertes, A. Spectroscopic chara ...Philippe Colomban, Aleksandar Kremenović. "Asbestos-Based Pottery from Corsica: The First Fiber-Reinforced Ceramic Matrix Composite" in Materials, MDPI AG (2020). https://doi.org/10.3390/ma13163597
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Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)
Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović. "Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)" in Carbonates and Evaporites, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s13146-019-00548-6
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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 ...... studije Remedijacija otpadnih voda Rudnika prirodnim zeolitom Kandidat Mentor Veličković Igor Dr Erić Suzana, redovni profesor G53/23 Beograd, septembar, 2024. Komisija: 1.Dr Suzana Erić, redovni profesor, mentor Rudarsko-geološki fakultet, Beograd 2. Dr Aleksandar Pačevski, redovni ...
... otpadna voda B Fe - posle tretmana zeolitom || 2 3 m Mn - otpadna voda m Mn - posle tretmana zeolitom ~ Slika 7.5. Sadržaj mangana u otpadnoj vodi pre i posle tretmana zeolitskim tufom 28 1200 BSSr - otpadna voda 1000 m Sr - posle tretmana zeolitom 800 600 400 200 0 || 2 3 ...
... liskun — biotit i plagioklas — albit. 20e+004j 1.5e+004J 1.06+004j NI U\_/L..»·DM“ 0.0e+000 i d MA–-·«·M—·–––__MW Ca-klinoptilolit 00-047-1870 In te nz it et L i iLji „ i „ M l- , kalcit 01-089-1304 il ı1 \ kvarc 01-085-0794 L L biotit 01-084-5982 ıl |_ı , , | albit 01-078-1995 ...Igor Veličković. Remedijacija otpadnih voda Rudnika prirodnim zeolitom, 2024
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Modeliranje buke u zoni površinskog kopa Ljubija ležišta Ciganuša - Škorac
Teodora Kaličanin (2024)Svaki neželjeni zvuk u prirodi se može definisati kao buka. Buka svakodnevno utiče na ljude i predstavlja pretnju po ljudsko zdravalje. Zbog toga su nastale mnoge metode za merenje, proračun i saniranje ovog problema.Tema ovog završnog rada master studija je modeliranje buke u zoni površinskog kopa ''Ljubija''. Opisani su pojam buke i zvuka kao osnov za kasnije iznesene podatke, kao i tipovi i različiti izvori buke. Prikazane su metode merenja buke i uređaji koji se u tom procesu koriste. Obrađen ...... receptore: • trasa za transport jalovine na odlagalište Gradina – Jug: R1 - 40 m, R2 – 42 m, R3 — 75 m, R4 – 102 m, R5 – I81m, R6 – 1417m, R7 – 248 m; • trasa za transport rude: R8 – 38m, R9 – 47m, RIO – 51 m, RII – 38 m, RI2-44m,R13-65m,R 14-40m,R1l15-23m,R16- I7m; 45 |1 -. R- Crkva 4968500 ...
... transporta rude, tako da je modeliranje izvršeno posebno za noćni period (slika 23). 47 Noise level Leq,d M in dB(A) " -N og -r p- Bo g: Bv k- MO MO MO M M M M 63865D0 16387500 6388500 6389500 Slika 22. Kumulativni prikaz procena nivoa buke oko kopova i odlagališta, za neutralne ...
... brzina zvuka pri istim uslovima 331 m/s.Sa porastom temperature za 1%C dolazi do povećanja brzine zvuka za 0.6 m/s, tako da se na sobnim temperaturama vrednost brzine zvuka kreće u opsegu 340+350 m/s. Najčešće se za vrednost brzine zvuka u vazduhu uzima 340 m/s, u praktičnim proračunima [3]. 2 ...Teodora Kaličanin. Modeliranje buke u zoni površinskog kopa Ljubija ležišta Ciganuša - Škorac, 2024
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A necessary and sufficient condition for an algebraic integer to be a Salem number
Dragan Stankov (2019)We present a necessary and sufficient condition for a root greater than unity of a monic reciprocal polynomial of an even degree at least four, with integer coefficients, to be a Salem number. This condition requires that the minimal polynomial of some power of the algebraic integer has a linear coefficient that is relatively large. We also determine the probability that an arbitrary power of a Salem number, of certain small degrees, satisfies this condition.Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomialsDragan Stankov. "A necessary and sufficient condition for an algebraic integer to be a Salem number" in Journal de theorie des nombres de Bordeaux (2019). https://doi.org/10.5802/jtnb.1076
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Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia
... org/10. 4095/226015 Hossin M, Sulaiman MN (2015). A Review on Evaluation Metrics for Data Classification Evaluations IJDKP. https://doi.org/10.5121/ ijdkp.2015.5201 Hristov S, Karajovanovik M, Stračkov M (1965) Basic geological map of SFRJ, sheet Kavadarci, M 1:100,000 (map & interpreter), ...
... 202 1-0503-729 Al-Rawashdeh S, Saleh B, Hamzah M (2006) The use of Remote Sensing Technology in geological Investigation and mineral Detection in El Azraq-Jordan. Cybergeo. https://doi.org/10. 4000/cybergeo.2856 Bachri I, Hakdaoui M, Raji M et al (2022) Identification of Lithology Using ...
... Random forests for classification in ecology. Ecol 88:2783—2792. https://doi.org/10. 1890/07-0539.1 Cvetkov V, Đurić D, Lesić V, Starčević M, Petković M, Petrović S (2016) Koenigsberger ratio and Total Magnetic Field Anomaly reduction to the pole for the area of Macedonia. Geologica Mac- edonica ...Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski. "Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia" in Earth Science Informatics, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s12145-024-01243-4
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Simulation of Hydrogeological Environmental Discharge in Case of Interruption Constant Observations
Marina Čokorilo Ilić, Dragoljub Bajić, Miroslav Popović. "Simulation of Hydrogeological Environmental Discharge in Case of Interruption Constant Observations" in International Scientific Conference - Sinteza 2024, Belgrade, 16. maj 2024, Singidunum University (2024). https://doi.org/10.15308/Sinteza-2024-288-294
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Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides
Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović (2021)... enhanced geothermal systems in Europe. Geoth. Energ. Sci. 2, 55–71. Limberger, J., van Wees, J.-D., Tesauro, M., Smit, J., Bonté, D., Békési, E., Pluymaekers, M., Struijk, M., Vrijlandt, M., Beekman, F., Cloetingh, S., 2018. Refining the thermal structure of the European lithosphere by inversion ...
... 290, 13–142. Marović, M., Djoković, I., Milićević, V., Toljić, M., Gerzina, N., 2002. Paleomagnetism of the late paleogene and neogene rocks of the Serbian Carpatho-balkanides: tectonic implications. Ann. Geol. Peninsule Balk. 64, 1–12. Marović, M., Toljić, M., Rundić, Lj, Milivojević ...
... relationship between the East Anatolian and Dead Sea fault zones in southeastern Turkey. Tectonophysics 172, 331–340. Philippon, M., Corti, G., Sani, F., Bonini, M., Balestrieri, M.-L., Molin, P., Willingshofer, E., Sokoutis, D., Cloetingh, S., 2014. Evolution, distribution and characteristics of rifting ...Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović. "Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides" in Journal of Structural Geology, Elsevier BV (2021). https://doi.org/10.1016/j.jsg.2021.104386
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Terminology Acquisition and Description Using Lexical Resources and Local Grammars
Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...... f + N1651 27 1 4 Lalica ica N 3 m + N1683 145 142 98 Milojica ica N 3 m + N1741 145 3 2 Prica ica N 3 m/f + N683 40 33 83 tvrdica ica N 3 m/f + N679 40 7 18 ubica Table 1: Excerption from dataset with ending. (m: masculine gender; f: feminine gender; m/f: nouns change gender in their in ...
... Tonoike, M., Sato, S., & Utsuro, T. (2006). Compiling French-Japanese Terminologies from the Web. Paper presented at the 11 th Conference of the European Chapter of the Association for Computational Linguistics - EACL. Rodrıguez, F. M. B., Noya, E. D., Otero, P. G., Martınez, M. L., Mato ...
... Mato, E. M. M., Rojo, G., Docıo, S. S. (2007). A Corpus and Lexical Resources for Multi-word Terminology Extraction in the Field of Economy in a Minority Language. Proc. of 3rd Language & Technology Conference. Sag, I. A., Baldwin, T., Bond, F., Copestake, A., & Flickinger, D. (2002). Multiword ...Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić. "Terminology Acquisition and Description Using Lexical Resources and Local Grammars" in Proceedings of the 11th Conference on Terminology and Artificial Intelligence, Granada, Spain, 2015, Granada : LexiCon (Universidad de Granada) (2015)
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Orogenic magmatism during continental collision: A numerical modelling approach
Nevena Andrić, Katharina Vogt, Liviu Matenco, Vladica Cvetković, Sierd Cloetingh, Taras Gerya (2017)Nevena Andrić, Katharina Vogt, Liviu Matenco, Vladica Cvetković, Sierd Cloetingh, Taras Gerya. "Orogenic magmatism during continental collision: A numerical modelling approach" in Émile Argand Conference - 13th Workshop on Alpine Geological Studies - September 7th-18th 2017 in Serbia, Zlatibor Mts., Beograd:University of Belgrade - Faculty of Mining and Geology (2017): 11-11
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Preliminary results of the Selanac debris flow modelling in RAMS - a case study
Krušić Jelka, Andrejev Katarina, Abolmasov Biljana, Marjanović Miloš. "Preliminary results of the Selanac debris flow modelling in RAMS - a case study" in Proceeding of the 3rd Regional Symposium on Landslides in the Adriatic-Balkan Region 1, Ljubljana, Slovenia:Geological Survey of Slovenia (2018): 95-100
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Rockfall monitoring and simulation on a rock slope near Ljig in Serbia
Marjanović Miloš, Abolmasov Biljana, Pejić Marko, Bogdanović Snežana, Samardžić Petrović Mileva (2018)Marjanović Miloš, Abolmasov Biljana, Pejić Marko, Bogdanović Snežana, Samardžić Petrović Mileva. "Rockfall monitoring and simulation on a rock slope near Ljig in Serbia" in Proceeding of the 3rd Regional Symposium on Landslides in the Adriatic-Balkan Region 1, Ljubljana, Slovenia:Geological Survey of Slovenia (2018): 83-88
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Automated GNSS monitoring of Umka landslide - Review of seven years experience and results
Abolmasov Biljana, Pejić Marko, Samardžić Petrović Mileva, Đurić Uroš, Milenković Svetozar. "Automated GNSS monitoring of Umka landslide - Review of seven years experience and results" in Proceeding of the 3rd Regional Symposium on Landslides in the Adriatic-Balkan Region 1, Ljubljana, Slovenia:Geological Survey of Slovenia (2018): 65-70
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Trace elements and garnet formation in a distal skarn zone: a case study of the Rudnik deposit, Central Serbia
Bojan Kostić, Pavle Tančić, Natalija Batoćanin. "Trace elements and garnet formation in a distal skarn zone: a case study of the Rudnik deposit, Central Serbia" in Geological Quarterly, septembar 2024, Polish Geological Institute - National Research Institute (PGI-NRI) (2024). https://doi.org/10.7306/gq.1752
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Approach to operational mine planning: Case study Tamnava West
... structural model, the technique within Minex called the "Splitting" and "Father and Son" concept was applied and the gridding mesh size was set at 25 m x 25 m to cover all boreholes. An exceptionally large scan distance of 35,000m was selected for seam General Purpose interpolation, and for assay ...
... regarding a characteristics of particular BWE. For the case of SchRs 630 (BWE on Tamnava – West) maximal height of sub benches is 7 m and minimal height is 1 m. Quality target is set by the needs of Thermal power plant Nikola Tesla, main user of coal from Tamnava - West. By agreement between ...
... sandstone and 32 clay), clay basement, interburden sandstone and overburden river sediments have been modeled within a stratigraphic section up to 98 m thick. The reason for so detail model lies in the fact that this model is base for coal homogenization process, so it need to represent as real ...Dejan Stevanović, Mirjana Banković, Milica Pešić Georgiadis, Ranka Stanković. "Approach to operational mine planning: Case study Tamnava West" in Tehnika, Beograd : Savez inženjera i tehničara Srbije (2014). https://doi.org/10.5937/tehnika1406952S
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A hydrogeological model of the open-cast mine Tamnava - West Field (Kolubara Coal Basin, Serbia)
... mine… 47 vertical and horizontal directions. Well pumping tests have been conducted and the hydraulic conductivity found to range from 6x10-5 m/s to 6x10-4 m/s. The intermediate aquifer comprised of sands is found in the extended area of Tamnava - West Field, in a part where deposited sands lie between ...
... homogeneous in both vertical and horizontal directions, the sands are fine-grain and medium-grain, and the hydraulic conductivity is about 1x10-5 m/s. The intermediate aquifer is overlain and underlain by coal beds. In the northern part of the mine the overlying layer is integrated into the upper ...
... of the Kolubara Coal Basin. The sands within Tamnava - West Field are very homogenous. Their values of hydraulic conductivity is (1.3 to 2.5) x 10-5 m/s and transmissivity T = (2.5 to 6.0) x 10-3 m2/s. The aquifer floor comprises coal beds, fine Miocene sands, silt and clay. 3. METHODOLOGY ...Jelena Ratković, Dušan Polomčić, Dragoljub Bajić, Bojan Hajdin. "A hydrogeological model of the open-cast mine Tamnava - West Field (Kolubara Coal Basin, Serbia)" in Underground Mining Engineering no. 29, Belgrade : University of Belgrade - Faculty of mining and geology (2016): 43-54
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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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Oптимизација положаја резних елемената роторних багера помоћу мерења термалном камером
Предраг Радуловић (2024)Роторни точак као радни елемент роторног багера представља један од најбитнијих делова багера. У овом раду појединачно су представљени сви делови радног елемента роторног багера као и типови и материјали од којих су израђени. Приказани су утицаји геолошке грађе и разних отпора приликом копања на резне елементе. Веома битан део рада представља термографија као дијагностичка метода као и студија случаја која је изведена, након извршених мерења чији у резултати приказани у раду.Крајњи исход рада представља предлог оптимизације положаја зуба ...Предраг Радуловић. Oптимизација положаја резних елемената роторних багера помоћу мерења термалном камером, 2024
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Hidrogeohemija prirodnih radioaktivnih elemenata u podzemnim vodama Srbije
Marina D. Ćuk (2018-02-23)Osnovni cilj doktorske disertacije predstavljao je definisanje prirodnih koncentracija (engl. background values) U, Th, i K u podzemnim vodama, i definisanje hidrogeohemijskih uslova koji utiču na distribuciju navedenih elemenata u podzemnim vodama...prirodni radioaktivni elementi, podzemna voda, geohemijske sredine, hidrogeohemijski uslovi, neparametarska statistička analiza, logistički model, hidrohemijsko modeliranje... Debye-Huckel formula: log γi = -Azi 2√𝐼. I < 10-2.3 M (za rastvore malih mineralizacija) b) Debye-Huckel produžena formula: log γi = -Azi 2 √𝐼1+𝐵𝑎√𝐼 , I <0.1 M c) Davies formula: log γi = -Azi 2( √𝐼1+√𝐼 – 0.31). I < 0.5 M ... 0.7 M (za rasole). zi – valentno stanje jona A i B – parametri ...
... cal and geochemical evidence from the central Serbo-Macedonian Massif. Gondwana Research 36: 523 – 544. 6. Antonijević I, Veselinović M, Ðorđević M, Kalenić M, Krstić B, Karajičić Lj. 1976. Osnovna geološka karta 1:100 000. Tumač za list Žagubica (L 34 ‒ 140). Zavod za geološka i geofizička ...
... sequences (with discussion). J Roy Stat Soc B. 20: 215 – 242. 19. Ćuk M, Papić P, Stojković J. 2013. Natural radioactivity of groundwater in Serbia. Annales géologiques de la Péninsule Balkanique 74: 63 – 70. 20. Ćuk M, Todorović M, Papić P, Kovačević J, Nikić Z. 2014. Hydrogeochemistry of Uranium ...Marina D. Ćuk. "Hidrogeohemija prirodnih radioaktivnih elemenata u podzemnim vodama Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-02-23)
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The external aggregation Newton's method for solving nonlinear equations and applications
Marija Paunović, Dejan Ćebić, Nebojša Ralević. "The external aggregation Newton's method for solving nonlinear equations and applications" in The University Thought - Publication in Natural Sciences, Centre for Evaluation in Education and Science (CEON/CEES) (2020). https://doi.org/10.5937/univtho10-24982