Претрага
616 items
-
English for Geology Students. 1
Lidija Beko (2023)... otherwise without the prior written permission of the author. Mom bratu Milanu Table of contents 'Predgovoybo .. . OJ JAJNNJ.I....OJ0...j. .EOL .. J..JOJOL BMR a .. 9 •Unit1l• MINERALS Partl MINERAL EVOLUTION.............vtea e 12 Pre-solar minerals..................a a a oa 14 Vocabulary ...
... ROCKS.... . a v MM . .O . M, 130 'Vocabulary....e.. ...R ... a o . N i a y- k 133 Reading Comprehension..........ii . 134 Part 308 VOLCANOES|.J. „v „Og J JNR 31 . ov eoPeMaMO. • MM cı + - + ) ttake 136 Vocabulary........k.coac a dd0 dd d a d 2 MNMBA o a 139 Reading Comprehension...........toe. 140 ...
... through Myths............i.i a 97 • Unit4• CONTINENTAL DRIFT WEGENER'S HYPOTHESIS ...........tttoe 100 Mocabulary. .rA .. dk r dj. - . d. o - -j= -- - - OJ 102 Reading Comprehension........ ....i.. 103 'TREGTONIG PLATESL.L OEOA K . O OR . JČOA OMNJ-K. . - .POO I 104 Vocabulary......... ...Lidija Beko. English for Geology Students. 1, Belgrade : The Faculty of Mining and Geology, 2023
-
Развој модела употребног квалитета помоћне механизације на површинским коповима лигнита
Драгица Јагодић Крунић (2021)Тренутно стање помоћне механизације на површинским коповима лигнита је незадовољавајуће узроковано пре свега старошћу и неблаговременом заменом машима услед чега је расположивост недовољна а трошкови експлоатације и одржавања високи. Тренутно стање и захтеви који се постављају пред ове машине указују на неопходност оптимизације процеса управљања помоћном механизацијом. Одређивање оптималног времена замене и преосталих могућности је најодговорнији управљачки задатак који треба да буде заснован на свеобухватном сагледавању економских, техничких и других узрочно последичних веза. Са економског аспекта гледано треба одржавати ...помоћна механизација, употребни квалитет, ефективност, расположивост, сигурност функционисања, ризик, трошкови животног циклуса, фази логика, Монте Карло метода... се добијају на исти начин: μSro = (μSro(ј=1), μSro(ј=2), μSro(ј=3), μSro(ј=4), μSro(ј=5)), (7.23) μSžs = (μSžs(ј=1), μSžs(ј=2), μSžs(ј=3), μSžs(ј=4), μSžs(ј=5)), (7.24) μDt = (μDt(ј=1), μDt(ј=2), μDt(ј=3), μDt(ј=4), μDt(ј=5)). (7.25) 115 ...
... Rфп-ЛОША 0,00 х Rфп-ЛОША Σ R μR(ј=1) μR(ј=2) μR(ј=3) μR(ј=4) μR(ј=5) Специфичне вредности фази скупова и коначнa оценa у фази облику (7.1) за парцијални показатељ погодност одржавања (M) се добијају на исти начин: μM = (μM(ј=1), μM(ј=2), μM(ј=3), μM(ј=4), μM(ј=5)). (7.10) 7.2 ...
... синтезе: Wk = [ μV1(j=1, …, j=n), μV2(j=1, …, j=n), μV3(j=1, …, j=n), … , μVm(j=1, …, j=n) ], за свако k = 1 до K. (7.50) III корак: Анализом само оних комбинација чије су вредности функција припадности различите од нуле, односно задовољавају услов µVi (j=1,..., j=n) ≠ 0, дефинишу се исходи ...Драгица Јагодић Крунић. Развој модела употребног квалитета помоћне механизације на површинским коповима лигнита, Београд : [Д. Јагодић Крунић], 2021
-
Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics
Agate veins and nodules occur in the Lece Volcanic Complex (Oligocene-Miocene) situated in the south of Serbia and occupying an area of 700 km2. This volcanic complex is composed predominantly of andesites, with sporadic occurrences of andesite-basalts, dacites and latites, and features agate formations that have been very little investigated. This study focuses on five selected agate occurrences within the Lece Volcanic Complex, employing optical microscopy, scanning electron microscopy (SEM), X-ray powder diffraction analysis, inductively coupled plasma mass spectrometry ...Zoran Miladinović, Vladimir Simić, Nenad Nikolić, Nataša Jović Orsini, Milena Rosić. "Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics" in Minerals, MDPI AG (2024). https://doi.org/10.3390/min14050511
-
Properties of fly ash and slag from the power plants
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... mass (%) NT A – m 58 16 10 5 5 3 3 – – 100 NT A – j 66 17 9 3 2 2 – – – 99 NT B – m 50 17 12 6 4 7 4 – – 100 NT B – j 50 10 14 8 6 7 3 – 2 100 KO A – m 55 7 23 7 – – 4 4 – 100 KO A – j 55 10 12 3 2 10 1 7 – 100 KO B – m 55 19 13 5 – – 5 3 – 100 KO B – j 50 6 15 2 2 10 5 10 – 100 NT A (s) 56 21 11 3 – – ...
... 11 2.05-2.15 11.88 NT A – j 0.29 0.22-0.38 22.67 16.0-30.0 2.09 2.08-2.10 12.76 NT B – m 0.26 0.08-0.71 44.67 35.0-51.0 2.13 2.08-2.20 11.53 NT B – j 0.20 0.15-0.28 51.33 46.0-57.0 2.10 2.05-2.16 13.15 KO A – m 0.17 0.10-0.23 17.33 15.0-19.0 2.08 2.04-2.11 11.02 KO A – j 0.41 0.37-0.47 65.00 48.0-81 ...
... 85 0.33 0.57 1.05 NT A – j 7.2 51.43 22.01 6.03 1.16 2.83 0.54 0.21 0.43 1.16 NT B – m 2.58 55.38 22.57 5.46 8.30 2.87 0.45 0.18 0.45 1.12 NT B – j 2.11 51.88 22.49 6.61 10.44 3.28 0.66 0.26 0.58 1.23 KO A – m 2.21 51.96 23.22 9.82 7.80 2.62 0.33 0.13 0.44 0.77 KO A – j 4.18 44.55 20.80 11.23 11 ...Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić. "Properties of fly ash and slag from the power plants" in Geologia Croatica, Zagreb : Croatian Geological Survey (2016). https://doi.org/10.4154/gc.2016.26
-
Review: Methodological approaches and research techniques for addressing construction and remediation problems in karst reservoirs
Saša Milanović, Ljiljana Vasić (2021)Saša Milanović, Ljiljana Vasić. "Review: Methodological approaches and research techniques for addressing construction and remediation problems in karst reservoirs" in Hydrogeology Journal, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10040-020-02280-1
-
Connections between the Levant and the Balkans in the late Middle Pleistocene: Archaeological findings from Velika and Mala Balanica Caves (Serbia)
Dušan Mihailović, Steven L. Kuhn, Katarina Bogićević, Vesna Dimitrijević, Ana B. Marín-Arroyo, Jelena Marković, Norbert Mercier, Bojana Mihailović, Mike W. Morley, Predrag Radović, William J. Rink, Senka Plavšić, Mirjana Roksandić (2022)Major changes in the technological, economic, and social behavior of Middle Pleistocene hominins occurred at the onset of the Middle Paleolithic, 400e200 ka. However, until recently it was not possible to establish when, where, and how certain forms of Middle Paleolithic behavior appeared and spread into Southeastern Europe, mainly owing to gaps in the Paleolithic record. Here we report new results of dating, material culture, and the archaeological context of finds from the Balanica Cave Complex in Sicevo (Serbia). ...Dušan Mihailović, Steven L. Kuhn, Katarina Bogićević, Vesna Dimitrijević, Ana B. Marín-Arroyo, Jelena Marković, Norbert Mercier, Bojana Mihailović, Mike W. Morley, Predrag Radović, William J. Rink, Senka Plavšić, Mirjana Roksandić . "Connections between the Levant and the Balkans in the late Middle Pleistocene: Archaeological findings from Velika and Mala Balanica Caves (Serbia)" in Journal of Human Evolution (2022)
-
Pre-failure deformation monitoring as rockfall prediction tool
... hazard management. Eng. Geol. 195 93–103 [5] De Vilder S J, Rosser N J and Brain M J 2017 Forensic analysis of rockfall scars. Geomorphology 295 202–214 [6] Janeras M, Jara J A, Royán M J, Vilaplana J M, Aguasca A, Fàbregas X, Gili J and Buxó P 2017 Multi-technique approach to rockfall monitoring ...
... Geoph. res. 112 F04014. [3] Abellán A, Calvet J, Vilaplana J M and Blanchard J 2010 Detection and spatial prediction of rockfalls by means of terrestrial laser scanner monitoring. Geomorphology 119 162–171 [4] Kromer R A, Hutchinson D J, Lato M J, Gauthier D and Edwards T 2015 Identifying rock ...Miloš Marjanović, Biljana Abolmasov, Zoran Berisavljević, Marko Pejić, Petko Vranić. "Pre-failure deformation monitoring as rockfall prediction tool" in IOP Conference Series: Earth and Environmental Science, IOP Publishing (2021). https://doi.org/10.1088/1755-1315/833/1/012197
-
Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia
Paleontology, Stratigraphy, Economic Geology, Geochemistry and Petrology, Geology, Geophysics, Geotechnical Engineering and Engineering Geology... VozAR, J., EBNER, E, VOZAROVA, A., HAASs, ]}., KovAcs, S., SUDAR, M., BIELIK, M. & PER6, Cs. (Eds.). Variscan and Alpine terranes of the Circum-Pannonian Region, 87–156, Geological Institute, SAS, Bratislava. KovAcs, S.*, SUDAR, M., GRADINARU, E., GAWLICK, H.-J., KARAMATA, S., HAAS, J., PER6 ...
... 359-368. GAWLICK, H.-J., MISSONI, S., SUZUKI, H., SUDAR, M.N., LEIN, R., JOVANoVIĆ, D. 2016. Triassic radiolarite and carbonate components from the Jurassic ophiolitic mćlange (Dinaridic Ophiolite Belt). Swiss Journal of Geosciences, 109, 3, 473–494. GAWLICK, H.-J., SUDAR, M.N., MIssoNi, ...
... Geological Studies (Zlatibor, Serbia 2017). Journal of Alpine Geology, 55: 1–167. KovAcs, S.f, SUDAR, M., KARAMATA, S., HAAs, J., PER0, CS., GRADINARU, E., GAWLICK, H.-J., GAETANI, M., MELLO, ]., POLAK, M., ALJINOVIĆ, D., OGORELEC, B., KOLAR-JURKOVŠEK, T., JURKOV- ŠEK, B. & BUsER, St. 2010. Triassic ...Nikita Bragin, Liubov Bragina, Nevenka Đerić, Nataša Gerzina-Spajić. "Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia" in Geološki anali Balkanskoga poluostrva (2019). https://doi.org/10.2298/GABP1901017B
-
An optimal sixteenth order family of methods for solving nonlinear equations and their basins of attraction
Dejan Ćebić, Nebojša Ralević, Marina Marčeta. "An optimal sixteenth order family of methods for solving nonlinear equations and their basins of attraction" in Mathematical Communications (2020)
-
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 ...... 1500- 8 š ž Fi 1000- E 500- ok——— | Tremolite, 01-086-1319. j | i I\\\„\M ML _L ı . j ıl | I[SWVi | THE - Diopside, 00-017-0318. j L | l a · || ı - Actinolite, heated, 01-089-5367 i ii | uartz, 00-001-0649 j ı ı ı | 3 Talc 1A, 01-082-8123 i dı ı a |l ' 10 20 30 40 50 60 70 ...
... ion of chrysotile-asbestos containing, materials (ACM). Eur. J. Mineral. 2010, 22, 535–546. [CrossRef] Ristic, M.; Czako-Nagy, L.; Music, S.; Vertes, A. Spectroscopic characterization of chrysotile asbestos from different regions. J. Mol. Struct. 2011, 993, 120–126. [CrossRef] Trittschack, R ...
... thermal decomposition by heat treatment. Econ. Environ. Geol. 2016, 49, 77–88. [CrossRef] Rooney, J.; Tarling, M.; Smith, S.; Gordon, K. Sub-micron raman spectroscopy mapping,of serpentinite fault rocks. J. Raman Spectrosc. 2018, 49, 279-286. [CrossRef] Dodony, I.; Buseck, P.R. Serpentines close-up ...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
-
Development of integrated fuzzy model for mine management optimization
Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić (2023)... all MŠ„» J = 1,2,...,m are triangular fuzzy numbers. Then, taking into account the membership function of the triangular fuzzy number, the fuzzy synthetic extent is calculated using; the following; equation: m i n m -1 m m m 1 1 1 S -Ž MLe|.2.MA, |Ž,D-> 552 d|| _—R — L — j=1 i=1 j=1 jel jcl ...
... CHANG D. Y. (1996) Applications of the extent analysis method on fuzzy AHP, Rur. J. Oper. Res., 95, 649 655. “} ZnU K., Y. JING, D. CHANG (1999) A discussion on extent analysis method and applications of fuzzy AHP, Eur. J. Oper. Res., 116, 450 456. TOLGA FE., M. DEMIRCAN, C. KAHRAMAN (2005) Operating ...
... POLOMČIĆ, J. RATKOVIĆ (2017) Multi-criteria decision analysis for he purposes of groundwater control system design, Water Resources Management, 81(15), 4759—4784, DOI: 10.1007/s11269-017-1777-4, 2017. 1I SAAry T.L. (1990) How to make a decision: The analytic hierarchy process, Eur. J. Oper. Res ...Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić. "Development of integrated fuzzy model for mine management optimization" in Comptes rendus de l'Académie Bulgare des Sciences (2023)
-
The use of biological markers in determination of origin and type of organic matter in the Tisza river sediments
Snežana Štrbac, Gordana Gajica, Aleksandra Šajnović, Nebojša Vasić, Ksenija Stojanović, Branimir Jovančićević (2013)The objective of the study was to determine the origin and type of organic matter (OM) of the Tisza recent sediments along the distance of 153 km through the territory of Serbia. For this purpose group organic-geochemical parameters and biomarker compositions were used. All samples contain approximately same amount of OM, which was deposited under uniform, slightly reducing conditions. Based on the distribution of n-alkanes, the origin and type of OM could not be precisely estimated. However, n-alkane patterns ...... Snowdon, Am. Assoc. Petrol. Geol. Bull. 83 (1999) 1426 17. J. M. Moldowan, W. K. Seifert, E. J. Gallegos, Am. Assoc. Petrol. Geol. Bull. 69 (1985) 1255 18. J. S. Sinninghe Damsté, F. Kenig, M. P. Koopmans, J. Köster, S. Schouten, J. M. Hayes, J. W. de Leeuw, Geochim. Cosmochim. Acta 59 (1995) 1895 ...
... Energ. Fuels 24 (2010) 4357 10. O. Sonibare, H. Alimi, D. Jarvie, O. A. Ehinola, J. Petrol. Sci. Eng. 61 (2008) 99 11. H. I. Petersen, B. Holland, H. P. Nytoft, A. Cho, S. Piasecki, J. de la Cruz, J. H. Cornec, J. Petrol. Geol. 35 (2012) 127 12. R. P. Philp, Fossil Fuel Biomarkers. Applications ...
... Bechtel, R. F. Sachsenhofer, I. Kolcon, R. Gratzer, A. Otto, W. Püttmann, Int. J. Coal Geol. 51 (2002) 31 7. I. R. Kaplan, Y. Galperin, S. Lu, R. Lee, Org. Geochem. 27 (1997) 289 8. Z. Wang, M. Fingas, D. S. Page, J. Chromatogr., A 843 (1999) 369 9. K. Stojanović, A. Šajnović, T. Sabo, A. Golovko ...Snežana Štrbac, Gordana Gajica, Aleksandra Šajnović, Nebojša Vasić, Ksenija Stojanović, Branimir Jovančićević. "The use of biological markers in determination of origin and type of organic matter in the Tisza river sediments" in Journal of Serbian Chemical Society, Beograd : Srpsko hemijsko društvo (2013). https://doi.org/10.2298/JSC130614087S
-
Одређивање оптималне производње дубинске пумпе на клипним шипкама
Небојша Савић (2024)Дужи временски период током историје производње нафте, дубинске пумпе на клипним шипкама су први и у многим случајевима једини избор када су у питању механичке методе експлоатације. Правилан одабир сваког појединачног елемента система омогућава оптимизацију која са собом повлачи бенефите у виду повећавања ефикасности и смањења трошкова. Тренутно примењени систем дубинских пумпи на клипним шипкама на лежишту „Н“ обезбеђује стабилну производњу и реализацију годишњих планова производње без већих проблема. У овом раду је приказан начин оптимизације производње дубинским пумпама ...... Beh OcTBapyje H HeKe TeXHHUKC rpoOneMe. IIpH cHJ1a3HOM XOJLy IIOTHCHH BCHTHJI Ce He OTBapa Ha cTapTy, IIpH XOJUy KHMHIa Ka JOJIĆ J(OJIa3H JIO 3HaTHOr OJUIaraFba. J[OBOJBHO BCJIHKC KOJIHUHHC TaCHHX 20 MeXypa pe3ynrHpajy raCHHM 3aKJbyuaBaMbeM IIyMIIe T3B. „Gas lock“. Kana nobe no OBC HOJaBeC ...
... Dynamornster Cards. 'Gearbox Torque Pkts 9000 //7 9000 B000) *\_/ 80000 """"""""""""""""""""" j r a; -r rugaj 7000 7000 2000 [ uuJ 800 3 a z 1ODG = 5000 500 H Downirake = FI H k i J 40000 š Pl EOM ELUJ 300 z i /_\ -20000 . eevdikai 200 M z i a 30000 10000 10000 / \ Šl GretorRareg ...
... 1. PanHH HHKJIyC JIyOHHCKĆC ITyMIHE...aaaaaaaaaaaaaaaaaaaa e aaeaaaaaaaaaaaeaaenatet 5 3. IIOJI3EMHA OTIPEMA 3A JIVEMHCKO IIVMITIABMĐE ... 7 3.1. J{yOBHHcka ITyMITa ly anaaaaaaananaananananaeanaeaeaeaeeaeaeaeaaeaeaeagaNeaeaaaeet 7 3.1.1. K-JtHri JIyOHHCKĆ IIyMITE ın eaaeaaaaaaaeaaaaaataaeaeetekaeaatet ...Небојша Савић. Одређивање оптималне производње дубинске пумпе на клипним шипкама, 2024
-
Quantitative and Geochemical Characterization of the Mokra Karst Aquifer (SE Serbia) by Time Series Analysis and Stochastic Modelling
Branislav Petrović, Veljko Marinović (2023)Branislav Petrović, Veljko Marinović. "Quantitative and Geochemical Characterization of the Mokra Karst Aquifer (SE Serbia) by Time Series Analysis and Stochastic Modelling" in EuroKarst 2022, Málaga - Advances in the Hydrogeology of Karst and Carbonate Reservoirs, Springer International Publishing (2023). https://doi.org/10.1007/978-3-031-16879-6_8
-
Fuzzy expert analysis of the severity of mining machinery failure
Mining machinery failure is almost an everyday occurrence. Usually the failures bare certain consequences, which require additional financial costs to repair and restore the system to its operational state. The consequences are viewed through negative and damaging effects a failure has on the machine, health and safety of the employees, work environment, and on the environment. The removal of the consequences of the failure requires additional financial investment, which has a negative impact on the company’s business. In order ...Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković. "Fuzzy expert analysis of the severity of mining machinery failure" in Applied Soft Computing, Elsevier BV (2020). https://doi.org/10.1016/j.asoc.2020.106459
-
Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija
Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić (2016)... PROMETHEE involves preference streams: φ+ j ( aj ) = ∑ j m=1ΠP ( aj, am ) positive stream φ− j ( aj ) = ∑ j m=1ΠP ( aj, am ) negative stream In general, the higher φ+ j , Alternative aj dominates over the other alternatives in the. The higher φ− j , than the other alternatives, however, ...
... system of alternatives. As a measure for multi-criteria evaluation, the PROMETHEE II involves absolute flow: φj ( aj ) = φ+ j ( aj ) −φ− j ( aj ) ; j = 1, . . . , J where j is the number of alternative. In the analysis conducted in this paper for the PROMETHEE method, the commercial software Visual ...
... Saaty include summarizing the comparison results’ matrix rows and normalization of the obtained sums, according to the Equation (2): n ∑ j=1 Wi Wj = Wi ( n ∑ j=1 1 Wj ) i = 1, . . . , n (2) The errors in the process of adding values to the elements in coupling comparison are determined by consistency ...Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić. "Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija" in Energies, MDPI AG (2016). https://doi.org/10.3390/en9110935
-
Evidence for Badenian marine transgression in Belgrade (Serbia)
Filip Anđelković, Dejan Radivojević (2019)... represented by four facies: Rakovica clastics, Tašmajdan limestones, Višnjica clays and Konjarnik schlier (Anđelković M., 1987; Anđelković, M.&Anđelković, J., 1997; Anđelković F. & Radivojević, 2018). Of these, clastics (conglomerates, sands and sandstones) and limestones (mostly subreefal) have the greatest ...
... Geology and geodynamics. Institute for regional geology and palaeontology, Faculty of Mining and Geology, p. 428 (in Serbian) Anđelković, M., Anđelković, J. 1997.Badenian cycles in Serbia. Geološki anali Balkanskog poluostrva, 61-2, 1-13 Anđelković, F., Radivojević, D. 2018. A contribution to the knowledge ...
... Badenian sediments in the Belgrade area, 17th Serbian Geological Congress, Vrnjačka Banja, 232-236 Marović, M., Toljić, M., Rundić, Lj., Milivojević, J. 2007. Neoalpine Tectonics of Serbia. Serbian Geological Society Monography, p. 87 Rögl, F. 1999. Mediterranean and Paratethys. Facts and hypotheses ...Filip Anđelković, Dejan Radivojević. "Evidence for Badenian marine transgression in Belgrade (Serbia)" in AAPG Vienna, Paratethys petroleum systems between Central Europe and the Caspian Region, Vienna, 26-27 mart, 2019, AAPG (2019)
-
A tool for identifying the criticality in the disordered systems with metastable dynamics
Svetislav Mijatović, Dragutin Jovković, Sanja Janićević, Stefan Graovac, Đorđe Spasojević. "A tool for identifying the criticality in the disordered systems with metastable dynamics" in Physica A: Statistical Mechanics and its Applications, Elsevier BV (2021). https://doi.org/10.1016/j.physa.2021.125883
-
Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)
Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik (2023)The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies of crystallography and structural defects are scarce. For clarification, we investigated a series of natural arsenopyrite crystals from the polymetallic Pb-Zn-(±Cu,Ag,Au,Sb,Bi,W) Šumadija-Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among them, samples from the Drenjak gold mineralisation showed near-stoichiometric FeAsS composition and were further investigated by conventional and high-resolution transmission electron microscopy methods. TEM revealed abundant planar crystallographic defects and epitaxial surface oxide layer ...Inorganic Chemistry, Condensed Matter Physics,General Materials Science, General Chemical Engineering, crystal structure, FeAsS, oxidation, TEM, XRPD... Peng, E.; Zou, S.; Deng, T.; Lai, E; Ning, J.; Dong, G.; Xu, D. Micro-Textural and Chemical Fingerprints of Hydrothermal Cobalt Enrichment in the Jingchong, Co-Cu Polymetallic Deposit, South China. Ore Geol. Rev. 2022, 142, 104721. [CrossRef] 4. · Chen,J.;Chen, Y.; Wei, Z.; Liu, E. Bulk Flotation ...
... Ustaszewski, K. The Alpine- Carpathian-Dinaridic Orogenic System: Correlation and Evolution of Tectonic Units. Swiss J. Geosci. 2008, 101, 139–183. [CrossRef] 16. ŠosterA.;Zavašnik, J.; O'Sullivan, P.; Herlec, U.; Potočnik Krajnc, B.; Palinkaš, L.; Zupančič, N.; Dolenec, M. Geochemistry of Bashib ...
... Šestan 305 and Janez Zavašnik *05 Q check for updates Citation: Jelić, L; Pačevski, A.; Kremenović, A.; Šoster, A.; Šestan, A.; Zavašnik, J. Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija- Kopaonik Pb-Zn/Polymetallic Ore District (Serbia). Crystals ...Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik. "Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)" in Crystals, MDPI AG (2023). https://doi.org/10.3390/cryst13020278
-
Hibridni sistem za planiranje i analizu ventilacije rudnika
... Svi ogranci (i,j) zadovoljavaju uslov i<j, gde je i – početni čvor, a j – krajnji čvor. Procedura računanja unapred Korak 2. Usvaja se p1 = 0. Korak 3. Izračunava se pj za j = 2, 3 ...nn kao maksimalna vrednost od ijoii hpp += za sve ogranke (i,j) čiji je zadnji čvor j. Korak 4. Računa ...
... ' oj 2 oj 2 j i a oj QRQ)mR(p = ρ ρ =∆ , (7.18) ili )m T T R(R 2 j a ' j oj ' oj = , (7.19) gde su : Ta – početna temperatura vazduha, T’ j – srednja temperatura gasova u ogranku j, ∫ − − − +== L o zj zj zj zj ' j N)LTMexp( 1)LTMexp( ...
... - unutrašnja energija, qi - toplotni fluks, u – gustina toplotne energije. Član j i ijijij x v d ∂ ∂ σ=σ predstavlja rad površinskih sila, koji može da se predstavi u obliku i j i j j i 2 k k k k j i ij x v x v x v x v x v p x v ∂ ∂ ∂ ∂ + ∂ ∂ µ+ ...Nikola Lilić, Ranka Stanković, Ivan Obradović. Hibridni sistem za planiranje i analizu ventilacije rudnika, Rudarsko-geološki fakultet, Univerzitet u Beogradu, 2000