Претрага
1114 items
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Can the dynamics of a subducted slab account for the Upper Cretaceous magmatism in the Sava-Vardar Zone and Timok Magmatic Complex? A Numerical Modelling Approach
Nikola Stanković, Ana Mladenović, Dejan Prelević, Vesna Cvetkov, Vladica Cvetković. "Can the dynamics of a subducted slab account for the Upper Cretaceous magmatism in the Sava-Vardar Zone and Timok Magmatic Complex? A Numerical Modelling Approach" in 16th Alpine Workshop, European Geosciences Union (2024)
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Upotreba lidar tehnologije i digitalne fotogrametrije primenom iPhone pametnih telefona na primeru rudnika "Rudnik"
Nikola Mirković, Luka Crnogorac, Aleksa Paunović. "Upotreba lidar tehnologije i digitalne fotogrametrije primenom iPhone pametnih telefona na primeru rudnika "Rudnik"" in 15. Simpozijum „Rudarstvo 2024“ Održivi razvoj u rudarstvu i energetici, Vrnjačka banja, 21-24. maj 2024., Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina (2024)
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Petrološke karakteristike dunavskog šljunka (Beograd – Zemun)
Miloš Mihajlović (2024)Dunavski šljunak u okolini Zemuna karakterističan je za obalne rečne naslage formirane dugotrajnim procesima erozije i transporta materijala koje reka Dunav nosi sa različitih područja uzvodno. Ispitivanja šljunka sa lokacije „Gemax” su pokazala je šljunak uglavnom zaobljen, najčešće u rasponu od nekoliko milimetara do nekoliko centimetara u prečniku. Kako Dunav nosi materijal sa velikog sliva, ovaj šljunak sadrži raznovrsne sastojke sa dominacijom kvarca i odlomaka stena visokosilicijskog sastava. Mineraloško-petrografska ispitivanja pokazala su prisustvo klasta različitog sastava, čime je potvrđena ...... bi se uzorak peska dobro izmešao sa rastvorom i kako bi se fine čestice suspendovale. EN 933-8:2012+A1:2015 (E) m sove Uso fhe (/2 m sz racton OO us O -__swz Take Pv maes M, bom Fy mottt autaarngto 2 w (mde)e Slika 7. Dijagram toka koji opisuje pripremu ispitanog uzorka pri ispitivanju ...
... list Beograd (Marković ı dr., 1984) OGK 1:100.000. Pan čev e-L 3 411 . a ı . | besknvi dimovši peskovi ppp ·m„·„„...··,„..„„„.„„„ F F " 4 {aranii tts -..a_..–.·.·„„„.m i » 1y RRRAAAAA -,...„„ · e |psteiideskbipekmi |s |s p ec:een ı F1 Pz= P |= | |_ ms ps b \gea bsa0 |_ OOO 9 ...
... ja)2O0razvoja.2O0turizma_0.pdf https://www.gemax.rs/sljunak/ 27 O0pasay 1 H3JABA O AYTOPCTBHY 3ABPIIIHOT PAJIA MHwe H npe3anMe cryaeHra M W@M# bpoj aHJeKca r ?5/43_ HisjaBMbyjeM Jk/:šaBPLUHM pa/i o HaACJIOBOM Gjodotakj kojokiujuezokt Oh olakoč M4:Mea l[uyaea - pj • pc3yJTTaT COH ...Miloš Mihajlović. Petrološke karakteristike dunavskog šljunka (Beograd – Zemun), 2024
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Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal
Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović. "Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal" in Polymers, MDPI AG (2021). https://doi.org/10.3390/polym13050759
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Regional rockfall exposure assessment, experience from Serbia
Rockfalls are common in hilly and mountainous areas, especially along roads with engineered slopes and cuts. Such is the case for most of the state and local road routes in Central, Serbia, which was the subject in this case study. A road network of 276 km covering roughly 1700 km2 between the cities of Kraljevo, Čačak and Ivanjica is presented. Assessing of such wide areas needs to be conducted from large to site-specific scale, i.e., using GIS spatial tools ...Miloš Marjanović, Biljana Abolmasov, Uroš Đurić, Jelka Krušić, Snežana Bogdanović. "Regional rockfall exposure assessment, experience from Serbia" in 5th Regional symposium on landslides in Adriatic–Balkan Region, 23-26 March 2022, Faculty of Civil Engineering, University of Rijeka and Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb (2022)
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Quantifying the mass transfer from mountain ranges to deposition in sedimentary basins: Source to sink studies in the Danube Basin–Black Sea system
Matenco Liviu, Andriessen Paul, Avram Corina, Bada Gabor, Beekman Fred, Bielik Miroslav, ter Borgh Marten, Cifci Gunay, Cvetković Vladica, Dinu Corneliu, Dombradi Endre, Dondurur Derman, Ergun Mustafa, Francu Juraj, Fügenschuh Bernhard, Garcia-Castellanos Daniel, Götz Joachim, Horváth Ferenc, Houseman Gregory, Knežević Slobodan, Kovac Michal, Kralikova Silvia, Krijgsman Wout, Kucuk Mert, Legosteva Olga, Lericolais Gilles, Jipa Dan, Maximov Greg, Melinte Mihaela, Minar Jozef, Munteanu Ioan, I.J. Munt, C. Olariu, J.C. Otto, N. Panin, D. Plašienka, Reiser Martin, Rundić Ljupko, M. Rupprechter, Safanda Jan, Schmid Stefan, Schrott Lothar, Schuster Ralf, Starostenko Vitaliy, R.J. Steel, Stephenson Randell, Stovba Sergiy, Sokoutis Dimitrios, Stankoviansky Miloš, Stoica Marius, Stojadinović Uroš, Toljić Marinko, Tomljenović Bruno, ter Voorde Marlies, Wong How Kin (2013)Matenco Liviu, Andriessen Paul, Avram Corina, Bada Gabor, Beekman Fred, Bielik Miroslav, ter Borgh Marten, Cifci Gunay, Cvetković Vladica, Dinu Corneliu, Dombradi Endre, Dondurur Derman, Ergun Mustafa, Francu Juraj, Fügenschuh Bernhard, Garcia-Castellanos Daniel, Götz Joachim, Horváth Ferenc, Houseman Gregory, Knežević Slobodan, Kovac Michal, Kralikova Silvia, Krijgsman Wout, Kucuk Mert, Legosteva Olga, Lericolais Gilles, Jipa Dan, Maximov Greg, Melinte Mihaela, Minar Jozef, Munteanu Ioan, I.J. Munt, C. Olariu, J.C. Otto, N. Panin, D. Plašienka, Reiser Martin, Rundić Ljupko, M. Rupprechter, Safanda Jan, Schmid Stefan, Schrott Lothar, Schuster Ralf, Starostenko Vitaliy, R.J. Steel, Stephenson Randell, Stovba Sergiy, Sokoutis Dimitrios, Stankoviansky Miloš, Stoica Marius, Stojadinović Uroš, Toljić Marinko, Tomljenović Bruno, ter Voorde Marlies, Wong How Kin. "Quantifying the mass transfer from mountain ranges to deposition in sedimentary basins: Source to sink studies in the Danube Basin–Black Sea system" in Global and Planetary Change no. 103, Amsterdam:Elsevier (2013): 1-18. https://doi.org/10.1016/j.gloplacha.2013.01.00
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Tektonske i litostratigrafske karakteristike šireg područja Grivske (Zapadna Srbija)
Nikola Otašević (2024)U ovom radu predstavljene su osnovne geološke karakteristike šireg područja Grivske. U litostratigrafskom pogledu na ovom prostoru prisutne su paleozojske, mezozojske i kenozojske sedimentne, magmatske i metamorfne stene. Tvorevine karbona su predstavljene semimeta-morfisanim tvorevinama.Tvorevine trijaske starosti su predstavljene slojevitim i masivnim krečnjacima, dok su tvorevine jure predstavljeni produktima ofiolitskog melanža. Takođe, prisutne su i tvorevine senona koje su predstavljene masivnim krečnjacima. U neogenoj sukcesiji dominiraju klastiti miocena, dok su u kvartaru zastupljeni različiti tipovi fluvijalnih, deluvijalnih i deluvijalno-proluvijalnih tvorevina. ...Nikola Otašević. Tektonske i litostratigrafske karakteristike šireg područja Grivske (Zapadna Srbija), 2024
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Surface functional groups and degree of carbonization of selected chars from different processes and feedstock
Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann (2022)The knowledge ofthe structural and chemical properties of biochars is decisive for their application as technical products. For this reason, methods for the characterization of biochars that are generally applicable and allow quality control are highly desired. Several methods that have shown potential in other studies were used to investigate two activated carbons and seven biochars from different processes and feedstock. The chars were chosen to cover a wide range of chemical composition and structural properties as a hardness ...Biougalj, različiti procesi dobijanja, različite sirovine, površinski aktivne grupe, x-ray, FT-IR,XPS... https://doi.org/10.3390/pr9050882. Jahirul M. I., Rasul M. G., Chowdhury A. A., Ashwath N., Biofuels production through biomass pyroly- sis-A technological review, Energies 2012, 5(12), 4952—5001. https://doi.org/10.9390/en5124952. Lewandowski WM, Ryms M, Kosakowski W. Thermal biomass conversion: ...
... 2015.1096880. Enaime G, Bacaoui A, Yaacoubi A, Liibken M. Biochar for wastewater treatment-Conversion technol- ogies and applications. Appl Sci. 2020; 10: 3492. https://doi.org/10.93390/app10103492. Ahmad M, Rajapaksha AU, Lim JE, Zhang M, Bolan N, Mohan D, et al. Biochar as a sorbent for con- ...
... 002. Kumar M, Xiong XN, Sun YQ, Yu IKM, Tsang DCW, Hou DY, et al. Biochar—Critical review on biochar- supported catalysts for pollutant degradation and sustainable biorefinery. Adv Sustainable Syst. 2020; 4: 2070020. https://dx.doi.org/10.1002/adsu.202070020. Giorcelli M, Bartoli M, Sanginario ...Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann. "Surface functional groups and degree of carbonization of selected chars from different processes and feedstock" in PLOS ONE (2022). https://doi.org/10.1371/journal.pone.0277365
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Примена CNC машина при обради мермера
Ненад Остојић (2024)Мермер је стена настала метаморфизмом седиментних карбонатних стена, најчешће кречњака или доломита. Мермер се углавном састоји од калцита,кречњака, серпентина и доломита. Његове главне компоненте су углавном калцијум карбонат, који чини више од 50 посто, и други магнезијум карбонат, калцијум оксид, манган оксид и силицијум диоксид, итд. Фазе обраде мермера су: примарно резање мермерних блокова у плоче, површинска обрада мермерних плоча, секундарно резање мермерних плоча, терцијарна обрада (ако је потребно). CNC машина је електро-механички уређај који управља алатима, користећи програмирање путем ...... napaMerapa: Op3uHa Kperatba (m?/h), HIOTpOHIH4a ueJIHuHHX paBHHX TecTepa (kg/m? pe3a), nHoTponikba uezHuHHX aOpa3HBa (kg/m? peya), HIOTPpOIHHIH4 CJIČKTpHuHeC CHeEpTHje CBHX CJIČKTpOMOTOPa IO m? pe3alba , TIOTPpOIIIa BOJIĆ y TOKy pe3atba (I/h), norpotitba Kpeua (kg/m? pe3a), BpeMCHCKO HcKopHinheMe ...
... OTr]JIe1a Kpo3 cneaehe napaMceTpe: Op3uHHa pesatba (m?/h), HIOTPpOIHIH4a JIHjaMaHTCKHX CerMeHarTa (kg/m? peaa), noTpolitba cJIeKTpHuHe cHeprHje (kWh/m? pes3a), TIOTPpOIIIa BOJIĆ y TOKy pe3atba (I/h), HIOTPpOIHHIH4 BOJIĆ IpeMa yuHHKy Ha pe3atbe (I/ m?), BpeMeHCKO HckKopuHiiheme raTepa y c(beKTHBHOM ...
... NOJMpaMĐe; HOjpa3yMeBa ce a H3peaaHe IIIOueC HeMAaJy HHKaKBC Me(QjeKTe y rpabu, M ma MMajy MH3rMme THHMUaH 3a OJUpeDeHy BpcTy KaMeHa. MakcHMajHo Hckopmiheme nojpa3yMeBa oOuMjabe 40 m? KaMCHHX ILIOuMa mrHpHHe 2 cm H3 1 m? KaMeHor 0JIoKa. IIpH TOM Ce, JNaKJIĆ, IpeTIOCTaBJba IIHpHHa pe3a o 0.5 cm, ...Ненад Остојић. Примена CNC машина при обради мермера, 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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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 ...... Jahrbuch fuir Mineralogie-Abhandlungen/ J. Mineral. Geochem. 182/3, 299—306. Stojanović, J.N., Radosavljević-Mihajlović, A.S., Radosavljević, S.A., Vuković, N.S., Pačevski, A.M., 2016. Mineralogy and genetic characteristics of the Rudnik Pb-Zn/ Cu,Ag,Bi,W polymetallic deposit (Central Serbia) - new ...
... 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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Hidrogeološke i hidrohemijske karakteristike pojave termomineralnih voda u reonu Volkovo (Skoplje - Republika severna Makedonija)
Hristina Petrova, Katarzyna Wątor, Ewa Kmiecik, Piotr Rusiniak, Boris Vakanjac, Vesna Ristić Vakanjac, Dimitar Petrov (2024)Kao rezultat tektonskog sklopa i litološko-geološkog sastava, na teritoriji Republike Severne Makedonije registrovan je veliki broj pojava termalnih, mineralnih i termomineralnih voda (T, M i TM voda). Dosadašnja hidrogeološka i hidrohemijska istraživanja ovih voda vršena od strane pojedinih autora sa ciljem da se definiše njihov lekoviti faktor kao i za potrebe banjskog turizma. Sprovedena istraživanja su, dakle, bila lokalnog karaktera i bila su vezana za njihove značajnije pojave. Tokom 70-tih godina prošlog veka, Kotevski je za potrebe izrade doktorske ...termomineralne vode, hidrohemijskie karakteristike, lekoviti faktor voda, Valakonje, Republika Severna MakedonijaHristina Petrova, Katarzyna Wątor, Ewa Kmiecik, Piotr Rusiniak, Boris Vakanjac, Vesna Ristić Vakanjac, Dimitar Petrov. "Hidrogeološke i hidrohemijske karakteristike pojave termomineralnih voda u reonu Volkovo (Skoplje - Republika severna Makedonija)" in 17. Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem, Pirot, 2-6 oktobar 2024, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet (2024). https://doi.org/10.5281/zenodo.13739884
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Available technological procedures for capturing CO2 in the industrial and power generation sectors
Climate change is a major environmental issue caused by anthropogenic emissions of greenhouse gases. Capturing CO2 and storing it in suitable geological formations is one of the main technological solutions that can provide mitigation of CO2 emission into the atmosphere. Capturing CO2 represents the first phase in process of carbon capture and storage, and includes the application of various technologies for the separation of CO2 produced in the energy and industrial sectors. There are four main systems for capturing ...Lola Tomić, Vesna Karović Maričić, Dušan Danilović, Branko Leković, Miroslav Crnogorac. "Available technological procedures for capturing CO2 in the industrial and power generation sectors" in 8th International Conference Mining and Environmental Protection, 22 – 25th September 2021, Serbia, Univerzitet u Beogradu, Rudarsko-geološki fakultet (2021)
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Fragmentation Size Prediction of Blasted Material Using a Specialized Software for Drilling and Blasting
Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić, Miljan Gomilanović (2024)Design and optimizing the drilling and blasting parameters, should fill the requirements for the capacity, fragmentation size, and technical characteristics of loading and transport equipment, and enable a safe work at the open pit. Besides mentioned, it also achieves the minimal impact on the environment of the open pit and decreases the negative effects on the environment, especially in the blast vibration and flyrock. To obtain the best possible blasting effects and consider all the factors, a specialized software is ...Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić, Miljan Gomilanović. "Fragmentation Size Prediction of Blasted Material Using a Specialized Software for Drilling and Blasting" in The 55th International October Conference on Mining and Metallurgy, Mining and Metallurgy Institute Bor (2024). https://doi.org/10.5937/IOC24077M
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Identification of the Best Available Renewable Energy Source for Electricity Production in Serbia
Around 2/3 of electricity production in Serbia originates from coal-fired thermal power plants. The most significant domestic coal deposits are lignite deposits, a type of low -quality coal that causes negative health, climate and environmental impacts during the combustion. To reduce those negative impacts on domestic electricity production and to promote environmental awareness, the Serbian Energy Sector Development Strategy and the National Action Plan for Use of Renewable Energy Sources indicate the plan for increasing the share of ...Strategija obnovljive energije, Održiva energija, Proizvodnja električne energije, Solarna energija, Biomasa, Hidroenergije, Energija vetraBoban Pavlović, Dejan Ivezić, Marija Živković. "Identification of the Best Available Renewable Energy Source for Electricity Production in Serbia" in Conference on Sustainable Development of Energy, Water and Environment Systems, Sarajevo, 28.6.-2.7.2020., Faculty of Mechanical Engineering and Naval Architecture, Zagreb (2020)
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Развој модела конструкције просторија отварања рудника са подземном експлоатацијом
Dražana M. Tošić (2016-08-26)Приликом израде подземних просторија у стјенској маси долази до нарушавања природне равнотеже напонских стања стијенског масива који су владали прије израде тих просторија, при чему долази до појаве прертасподјеле напона и његове концентрације у појединим правцима и тачкама, односно долази до појаве пластичних деформација које су праћене ломљењем стијенске масе и кретањима материјала према откопаном простору...модел, метод коначних елемената, просторија отварања, напон, дефеормација стијенског масива, алгоритам функционалних зависностиDražana M. Tošić. "Развој модела конструкције просторија отварања рудника са подземном експлоатацијом" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-08-26)
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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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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 polynomials... integral. Thus the probability of T is 4A/π2 = 0.0717258 . . .. denoted (d − 2)/2 by H. Let m ∈ N and let 0 = ti,0, ti,1, . . . , ti,m = π, i = 1, 2, . . . , H be nodes arranged consecutively with equal spacing h = π/m. Starting from Pn(x) = (x2 − Dx + 1) H ∏ i=1 (x2 − 2 cos(ti)x + 1) we calculate the ...
... 1103, 1120, 1131, 1133, 1152, 1182 with the relative frequency (2.13) 16/200 = 0.08. 226 Dragan Stankov References [1] M.-J. Bertin, A. Decomps-Guilloux, M. Grandet-Hugot, M. Pathiaux-Delefosse & J.-P. Schreiber, Pisot and Salem numbers, Birkhäuser, 1992. [2] Y. Bugeaud, Distribution modulo one ...
... positive real number. Then Kronecker’s theorem states that there exists an integer n > N such that ‖nαk −µk‖ < ε, (k = 1, . . . , p) where ‖x‖ = min{|x − m| : m ∈ Z} is the distance from x to the nearest integer. Proof of Theorem 1.1. Necessity. Suppose that τ > 1 is a Salem number. The essence of the proof ...Dragan 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