Претрага
1381 items
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Proračun recirkulacionih pumpi u postrojenju za odsumporavanje dimnih gasova ,,TENT B"
Tomislav Trpković (2024)Predmet ovog rada baziraće se na proračunu i usvajanju mašinskih instalacija potrebnih za nesmetano funkcionisanje sistema dve međusobno povezane celine Absorber - Pumpna stanica, preko FRP ( Fiberglass Reinforced Plastic) cevovoda kojim se odvija transport suspenzije krečnjaka neophodnog u samom procesu odsumporavanja dimnih gasova. Pored tehničkog opisa same tehnologije koja uključuje tri objekta: Absorber, Pumpna Stanica i cevovod, glavni deo rada odnosiće se na proračun i usvajanje mašinskih instalacija koji uključuju recirkulacione radijalne centrifugalne pumpe i cevovode kojima ...postrojenje za odsumporavanje dimnih gasova, termoelektrana, pumpna stanica, FRP cevovod, Absorber, transport suspenzije gipsa, prirubnica, ventil, potisni cevovod, usisni cevovod... za svaku deonicu l ~ d ~ „š) _š|8 9 _28%,9 _š|Ro _3 .O š |s.9) 4 |%,9) š 8%,9 _š |s 9 --| --Pi-B13 SĐEJZE ĐEJD E E j E j .E ih E j 'E j |Vrsta komada GJ s 3(5 S(| a 205 SC| „ 305 8s| s 2609 5 500 „ 30 |5 = = 3G |5 80 ws 36 B 80 s 20 |B 5GG |Koleno (45%) D0.35 |2 D.7 D.O |2 D.7 O .0 |2 D.7 .0 ...
... Tomislav Trpković R588/22 Beograd, 2024. Mentor: prof. dr Vladimir Milisavljević Clanovi komisije: prof. dr Ivica Ristović prof.dr Aleksandar Cvjetić Datum odbrane rada: Rezime: Predmet ovog rada baziraće se na proračunu ı usvajanju mašinskih instalacija potrebnih za nesmetano ...
... B" je izgrađena u skladu s vodećim tehničkim standardima i propisima tog doba. Koncipirana Je za faznu izgradnju, pri čemu je prva faza realizovana sa dva bloka, BI i B2, čineći ih trenutno najvećim energetskim Jedinicama u Srbiji, svaki snage 620 MW. Blok B1 je počeo s radom krajem 1983. godine ...Tomislav Trpković. Proračun recirkulacionih pumpi u postrojenju za odsumporavanje dimnih gasova ,,TENT B", 2024
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The origin of Mg sulphate and other salts formed on pure calcium carbonate substrate - Tufa stone blocks built into the Gradac Monastery, Serbia
Erić Suzana, Matović Vesna, Kremenović Aleksandar, Colomba Philippe, Srećković- Batoćanin Danica, Nešković Marina, Jelikić Aleksa (2015)Erić Suzana, Matović Vesna, Kremenović Aleksandar, Colomba Philippe, Srećković- Batoćanin Danica, Nešković Marina, Jelikić Aleksa. "The origin of Mg sulphate and other salts formed on pure calcium carbonate substrate - Tufa stone blocks built into the Gradac Monastery, Serbia" in Construction and Building Materials no. 98, :Elsevier (2015): 25-34. https://doi.org/10.1016/j.conbuildmat.2015.08.
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Correlation between alterations and Cu-Au mineralization within first phase andesite in the Čukaru Peki deposit
Dragana Bosić, Vladica Cvetković, Miodrag Banješević, Aleksandar Pačevski, Siyuan Chen, Kristina Šarić (2022)Dragana Bosić, Vladica Cvetković, Miodrag Banješević, Aleksandar Pačevski, Siyuan Chen, Kristina Šarić. "Correlation between alterations and Cu-Au mineralization within first phase andesite in the Čukaru Peki deposit" in XXII International Congress of the Carpathian-Balkan Geological Association, Geologica Balcanica, Plovdiv, Bulgaria, 7–11 September 2022, Geological Institute, Bulgarian Academy of Sciences (2022)
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Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer
Pavle Tančić, Maja Milošević, Darko Spahić, Bojan Kostić, Aleksandar Kremenović, Maja Poznanović-Spahić, Jovan Kovačević (2023)Pavle Tančić, Maja Milošević, Darko Spahić, Bojan Kostić, Aleksandar Kremenović, Maja Poznanović-Spahić, Jovan Kovačević. "Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer" in Mineralogical Magazine (2023). https://doi.org/10.1180/mgm.2023.88
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Optimal dynamic management of exploitation life of the mining machinery: models with limited interval
Vujić Slobodan, Miljanović Igor, Boševski Stefko, Kasaš Karolj, Milutinović Aleksandar, Gojković Nebojša, Josipović Pejović Milena, Dimitrijević Bojan, Gajić Grozdana, Čebašek Vladimir (2010)Vujić Slobodan, Miljanović Igor, Boševski Stefko, Kasaš Karolj, Milutinović Aleksandar, Gojković Nebojša, Josipović Pejović Milena, Dimitrijević Bojan, Gajić Grozdana, Čebašek Vladimir. "Optimal dynamic management of exploitation life of the mining machinery: models with limited interval" in Journal of Mining Science 46 no. 5, Germany/USA:Springer (2010): 554-560
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Rietveld crystal structure refinement of a natural rhombohedral grossular-andradite garnet from Serbia
Pavle Tančić, Aleksandar Kremenović (2022)Four macroscopically visible B–E (rim) zones, within a large natural ferric grossular garnet of Grs58–64Adr36–42 Sps2 composition, are described by means of Rietveld refinements of the crystal structures in a series of six space groups, followed by com parative analysis of the R-values, site occupancy factors, and bond lengths and angles. The garnet crystallized in the rhombohedral R63c space group. Various polyhedral distortions and structural or derdis or dervariations between the zones studied are also described and discussed. The ...Pavle Tančić, Aleksandar Kremenović. "Rietveld crystal structure refinement of a natural rhombohedral grossular-andradite garnet from Serbia" in Geological Quarterly, Polish Geological Institute - National Research Institute (PGI-NRI) (2022). https://doi.org/10.7306/gq.1639
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Praktikum iz hemije
Aleksandar Mijatović, Ana Kesić (2023)Aleksandar Mijatović, Ana Kesić. Praktikum iz hemije, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2023
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Genesis and metallogenetic setting of the polymetallic barite-sulphide deposit, Bobija, Western Serbia
Marcel Maurer, Dejan Prelević, Regina Mertz-Kraus, Aleksandar Pačevski, Bojan Kostić, Jovana Malbašić (2019)Trejs elementi u sfaleritu, izotopi sumpora, datiranje cirkonom, SEDEX, SHMS, dominantno klastični Pb-Zn, sulfidi, ležištaMarcel Maurer, Dejan Prelević, Regina Mertz-Kraus, Aleksandar Pačevski, Bojan Kostić, Jovana Malbašić. "Genesis and metallogenetic setting of the polymetallic barite-sulphide deposit, Bobija, Western Serbia" in International Journal of Earth Sciences, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s00531-019-01732-8
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Moниторинг у животној средини - одабрана поглавља
Динко Кнежевић, Драгана Нишић, Александар Цвјетић, Драгана Ранђеловић, Зоран Секулић. Moниторинг у животној средини - одабрана поглавља, Београд : Универзитет у Београду, Рударско-геолошки факултет, 2015
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Temperature induced evolution of nanostructured Ni0.9Zn0.1O
Kremenović Aleksandar, Antić Bratislav, Vučinić-Vasić Milica, Colomban Philippe, Jovalekić Čedomir, Bibić Nataša, Kahlenberg Volker, Leoni Matteo (2010)The crystal structure and microstructure of as-prepared and annealed Ni0.9Zn0.1O were refined at room temperature in both the Fm (3) over barm and R (3) over barm space groups. It is shown that below the Neel point (458 K), where magnetic ordering triggers the presence of a trigonal strain, the common usage of a higher-symmetry non-admissible space group for crystal structure and microstructure analysis via the Rietveld method may result in both an incorrect structure description and incorrect microstructure ...Kremenović Aleksandar, Antić Bratislav, Vučinić-Vasić Milica, Colomban Philippe, Jovalekić Čedomir, Bibić Nataša, Kahlenberg Volker, Leoni Matteo. "Temperature induced evolution of nanostructured Ni0.9Zn0.1O" in Journal of Applied Crystallography no. 43, Denmark: Blackwell Munksgaard (2010). https://doi.org/10.1107/S0021889810019163
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Праћење квалитета ваздуха у граду Лесковцу за период од 2019. – 2022. године
Немања Костић (2024)Еколошка деградација је део наших свакодневних живота. Активности повезане са напредовањем индустрије и индустријских постројења, као и огромно повећање у количини саобраћаја производе полутанте у урбаним срединама који утичу на квалитет како ваздуха, воде, земљшта, тако и на квалитет самог живота популације. Они имају негативан ефекат на здравље људи и животиња, и имају велики импакт на цео екосистем.Ослобађајаћи огромне количине полутанта у атмосферу, човек је већ приметљиво променио композицију атмосфере изнад густо насељених индустријских области. Присутност полутаната у ваздуху ...... npeko Hpeko (ug/m*) TB T.B. IB T.B. TexHOo.HOMHIKH 361 <s <s <s* 0 0,00 0 0.00 (akynreT VnpaBa A - _ BonosBona 365 => <5 <5 0 0,.00 0 0,00 MenunnuHcKa _= - ” mukoma 361 <s <5 <5 0 0.00 0 0,00 /leuju Bprnuh _ - . „Konnopn“ 361 <s < <5 0 0.00 0 0,00 TPAJT 1448 < <5* -—. 0 0,00 0 0,00 ...
... aaBa| % aagHa MecTO Mepetba| Hg/im? | ugm? | ugm? | >I.B. | >I.B. |wepeba| ronm. | Makc. | Mmn. | >I.B. | >I.B. Texmomomkm | aga | <s | <s | <5 | o | oo | ıss | => |<s | =s | o | OMO dQakynreT < 5 (rpagHura neTeknije) 28 TIpaheme KBa.irerTa Baygiyxa y rpajiy JleckoBuy 3a nepuoji os 2019 – 2022 ...
... B. | >I.B. Texmonomkm | ıgg | <s | <* | <* | 0 00 | Is3 | <* |< | < | 0 0,0 Qakyanrer ~ + HpaBa ıs | <* |<* | <* | 0 I 00 | ıss | <* |<* |< | 0 0.0 BonoBoua Memmmmmcka | ıgg | <s* | <* | <* | 0 I 00 | Is3 | <* |< | < | 0 0,0 miKkomna (leju sprni | ızg | <s* | <* |<* | 0 0.0 | 183 | <* | <* ...Немања Костић. Праћење квалитета ваздуха у граду Лесковцу за период од 2019. – 2022. године, 2024
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Rudna mikroskopija
Aleksandar Pačevski (2018)Aleksandar Pačevski. Rudna mikroskopija, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2018
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Manganese-pyromellitate complex as a precursor for preparation of spinel Mn3O4
Lidija Radovanović, Željko Radovanović, Aleksandar Kremenović, Bojana Simović, Milica V. Vasić, Jelena Rogan (2022)In recent years, thermal decomposition studies of transition metal complexes with benzenepolycarboxylate ligands have become an area of a great importance due to the possibility of obtaining useful metal oxides with desirable electrical, magnetic and catalytic properties [1]. As a contrast to conventional methods for the preparation of metal oxides, such as hydrothermal or sol–gel treatment, thermolysis is faster, more efficient ...Lidija Radovanović, Željko Radovanović, Aleksandar Kremenović, Bojana Simović, Milica V. Vasić, Jelena Rogan. "Manganese-pyromellitate complex as a precursor for preparation of spinel Mn3O4 " in XIV Conference of chemists, technologists and environmentalists of Republic of Srpska, Academy of sciences and arts of the Republic of Srpska, Banja Luka, Republic of Srpska, B&H, October 21st-22nd, 2022, University in Banjaluka, Faculty of Technology (2022)
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Environmental Noise Impact Assessment for Large-Scale Surface Mining Operations in Serbia
Noise emissions are a significant environmental impact caused by the mining industry in all technological phases of surface mining, mineral processing, and waste disposal. This paper presents the role of noise impact assessment and control in large-scale surface mining operations. Mine planning develops the model of mining operations, ore excavation, and waste dumping scheduling and processing rates, including spatial distribution of mining activities. Such a level of mine planning requires an environmental impact assessment study. This can be achieved ...Uros Pantelic, Petar Lilic, Aleksandar Cvjetic, Nikola Lilic. "Environmental Noise Impact Assessment for Large-Scale Surface Mining Operations in Serbia" in Sustainability, MDPI AG (2023). https://doi.org/10.3390/su15031798
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Structural and microstructural study of brookite based TiO2 nanocomposites with carbon black (C)
Structural and microstructural properties of TiO2-based nanocomposites with carbon black (C), synthesized by sol-gel-hydrothermal method, have been studied by XRPD and Raman scattering. Detailed size-strain analyses of XRPD and Raman scattering results are presented in order to investigate the influence of C content on brokite and anatase phase formation. The XRPD size-strain analyses have resulted in reliable structure and microstructure results for both anatase and brookite and their relative abundance ratio has been refined by Rietveld method. The brookite ...Aleksandar Kremenović, Mirjana Grujić-Brojčin, Nataša Tomić, Maja Šćepanović. "Structural and microstructural study of brookite based TiO2 nanocomposites with carbon black (C)" in The European Powder Diffraction Conference (EPDIC) Book of Abstracts, Šibenik, 31 May - 3 June 2022, EPDIC (2022)
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Applicability of the risk ranking methodology designed for water reservoirs to tailings storage facilities
The risks associated with operating water reservoirs and tailings storage facilities (TSFs) are different because of their different purposes, methods of construction and operation, and characteristics of the materials impounded and their flow behaviour. Regardless of the differences, these two types of structures are often put in the same category when it comes to risk assessment and the application of relevant methodologies, which may result in unrealistic outcomes. In this paper we investigate whether it is possible to apply ...Dragana Nišić, Dinko Knežević, Aleksandar Cvjetić, Neda Nišić, Vladimir Jovanović. "Applicability of the risk ranking methodology designed for water reservoirs to tailings storage facilities" in Journal of the Southern African Institute of Mining and Metallurgy (2022). https://doi.org/10.17159/2411-9717/1492/2022
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Effect of natural gas composition on methane number: A case of gas reservoirs in Serbia
Natural gas is considered as the most environmentally acceptable fossil fuel, thus it is an alternative to petroleum derivate, dominantly used in internal combustion engines. Physical properties of a fuel as well as behavior during combustion process are affected by its composition. This article presents analysis of effect of natural gas composition on methane number (MN), conducted for natural gas deposits in Serbia. For empirically determination of MN: California air resources board (CARB) method and Linear and Anstalt für ...Marija Živković, Milica Ivić, Dejan Ivezić, Aleksandar Madžarević. "Effect of natural gas composition on methane number: A case of gas reservoirs in Serbia" in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects (2017). https://doi.org/10.1080/15567036.2017.1403518
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Applying the Fuzzy Inference Model in Maintenance Centered to Safety: Case Study – Bucket Wheel Excavator
Predrag Jovančić, Miloš Tanasijević, Vladimir Milisavljević, Aleksandar Cvjetić, Dejan Ivezić, Uglješa Bugarić (2020)Predrag Jovančić, Miloš Tanasijević, Vladimir Milisavljević, Aleksandar Cvjetić, Dejan Ivezić, Uglješa Bugarić. "Applying the Fuzzy Inference Model in Maintenance Centered to Safety: Case Study – Bucket Wheel Excavator" in Applications and Challenges of Maintenance and Safety Engineering in Industry 4.0 , Pennsylvania : IGI Global (2020). https://doi.org/10.4018/978-1-7998-3904-0
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125 godina Srpskog geološkog društva (1891-2016) (125 years of the Serbian Geological Society)
Rundić Ljupko, Grubić Aleksandar, Banjac Nenad, Sudar Milan & Stevanović Zoran"". 125 godina Srpskog geološkog društva (1891-2016) (125 years of the Serbian Geological Society), Beograd/Belgrade:Srpsko geološko društvo/Serbian Geological Society, 2016
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The influence of structural modification of Pd(II) pincer-type complexes on the kinetics of substitution reactions
Snežana Jovanović Stević, Snežana Radisavljević, Aleksandar Mijatović, Biljana Petrović, Ana Kesić (2023)This mini-review summarizes the kinetic data obtained for the substitution reactions of some palladium(II) complexes containing bis-pyrazolylpyridine derivatives as pincer-type ligands with biologically significant nitrogen- and sulfur-donor biomolecules as nucleophiles. Three structurally different palladium(II) complexes were selected: [Pd(L1)Cl]+ (Pd1), [Pd(L2)Cl]+ (Pd2) and [Pd(L3)Cl]+ (Pd3) (where L1 = bis(2-(1H-pyrazol-1-yl)ethyl)amine, L2 = 2,6-bis(5-(tert-butyl)-1H-pyrazol-3-yl)pyridine, and L3 = 2,6-bis(5-(tert-butyl)-1-methyl-1H-pyrazol-3-yl)pyridine, while for the entering nucleophiles were used thiourea (Tu), L-methionine (L-met), and guanosine-5’-monophosphate (5’-GMP). Kinetic measurements were carried out for all systems as pseudo-first ...Snežana Jovanović Stević, Snežana Radisavljević, Aleksandar Mijatović, Biljana Petrović, Ana Kesić. "The influence of structural modification of Pd(II) pincer-type complexes on the kinetics of substitution reactions" in 2nd International Conference on Chemo and BioInformatics ICCBIKG 2023, 28-29 September 2023, Institute for Information Technologies, University of Kragujevac, Serbia, Kragujevac : Institute for Information Technologies, University of Kragujevac (2023)