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Упит dcterms_subject_txt:Sustainability and the Environment

2793 items

  • 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

    Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski (2024)
    General Earth and Planetary Sciences
    ... represented as raster data and used in the ML algo- rithm, regardless of the values they represented. The evaluated algorithms include RF and K nearest neighbors (KNN). According to Cracknell and Reading (2014) and thcir cited sources, the architecture of ML algo- rithms and the statistical distributions ...
    ... convergence and subsequent collision, the Vardar Zone is located between the Drina- Ivanjica Unit and the Serbo-Macedonian Massif (SMM). As an NNW- SSE extending belt, EVZ is generally situated between Kopaonik Unit (to the west) and SMM (to the east) (Fig. 2). The presence of the ophiolite complex ...
    ... However, the difference is negligible, with only a 1.3% variance between the model that demonstrated the highest accuracy (RF_A_100) and the model with the lowest accuracy (RF_C_100). The precision metric per- taining to the non-ophiolite class is analogous to the accu- racy metric, as the disparity ...

  • Modeliranje buke u urbanoj sredini u okolini Doma zdravlja u Pančevu

    Stefan Mandić (2024)
    Prisustvujemo epohi gde buka predstavlja veoma rasprostranjen i moderan fenomen koji možemo deklarisati kao problem. Svedoci smo toga da moderni problemi zahtevaju malo drugačiji pristup nego u prošlosti, odnosno zahtevaju moderna rešenja. Samim tim, vremenom je došlo do modernizacije alata,u ovom slučaju došlo je do razvoja modela za rasprostiranje buke koji su se vremenom unapređivali pa tako danas imamo jedno moćno sredstvo za borbu protiv buke u vidu kompjuterskog softvera.Ovaј master rad, pod nazivom „Modeliranje buke u urbanoj sredini ...
    buka, zvuk, saobraćaj, modeliranje, merenje buke
    ... propagation in the urban environment, 1.e. in around sensitive objects, in this case the health center. As well as obtaining and interpreting the results in a proper way as well as possible corrective measures to reduce and mitigate the impact of noise on people and the environment. The initial steps ...
    ... powerful tool to combat noise in the form of computer software. This master's thesis, entitled "Noise modeling in the urban environment in the vicinity of the Pančevo Health Center" contains 10 chapters, where all the necessary steps, data, methods, as well as the necessary equipment for creating ...
    ... municipal noise and to carefully compare the results from the field and those obtained through the model. AlI this in order to find an effective solution to reduce the impact of noise. This master's thesis covers all the necessary steps for the successful creation of a computer model for the purposes ...

  • Процена емисије гасова са ефектом стаклене баште као последице енергетске активности

    Горана Остојић (2024)
    Рад се бави анализом и проценом емисија гасова са ефектом стаклене баште, са посебним акцентом на емисије које настају као последица енергетских активности. Ефекат стаклене баште представља природни процес који је неопходан за одржавање живота на Земљи, али антропогене активности, попут индустријске производње и сагоревања фосилних горива, значајно повећавају концентрацију ових гасова у атмосфери, што доводи до климатских промена. Рад истражује узроке, последице и могућности за смањење емисија гасова, као и развој стратегија за ублажавање негативних ефеката на животну ...
    емисија гасова, ефекат стаклене баште, енергетске активности, климатске промене, мобилно сагоревање, стационарно сагоревање
    ... increase the concentration of these gases in the atmosphere, leading to climate change. The study explores the causes, consequences, and possibilities for reducing gas emissions, as well as the development of strateglies to mitigate the negative effects on the environment and the economy. The results ...
    ... [28] Stockholm Environment Institute (SEI). LEAP: Long-range Energy Alternatives Planning System. Available at: https://www.sei.org/projects-and-tools/tools/leap- long-range-energy-alternatives-planning-system/. [29] Meinshausen, M., 2011. "The RCP Greenhouse Gas Concentrations and their Extensions ...
    ... vered to the military in the country and delivered to. the military of other countries. 101 TIpouena eucuje zacosda ca edpjekmo cmakJteHe 0Gauime Kao nocJeOuue eHepoemcke akmus6Hocmu IIpunor 2 TpaHcrnopHH cekTop Code and Name Explanation 1A3 TRANSPORT Emissions from the combustion and evaporation ...

  • Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise

    Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Mladen R. Nedimović, Juan Pablo Canales, Hélène D. Carton, John C. Mutter, Javier Escartín (2023)
    Multidisciplinary

  • Two approaches to compilation of bilingual multi-word terminology lists from lexical resources

    Branislava Šandrih, Cvetana Krstev, Ranka Stanković (2020)
    In this paper, we present two approaches and the implemented system for bilingual terminology extraction that rely on an aligned bilingual domain corpus, a terminology extractor for a target language, and a tool for chunk alignment. The two approaches differ in the way terminology for the source language is obtained: the first relies on an existing domain terminology lexicon, while the second one uses a term extraction tool. For both approaches, four experiments were performed with two parameters being ...
    Linguistics and Language,Software,Artificial Intelligence,Language and Linguistics

  • Polymorphism and photoluminescence properties of K3ErSi2O7

    Predrag Dabić, Marko G. Nikolić, Sabina Kovač, Aleksandar Kremenović (2019)
    alkalni silikati elemenata retkih zemalja, silikati lantanoida, polimorfizam, fotoluminescencija, kristalna struktura

  • Arsenopirit iz rudnih ležišta Šumadijsko-kopaoničke oblasti: paregeneza, sastav i produkti oksidacije

    Ivana N. Jelić (2023)
    Arsenopirit, FeAsS je čest pratilac polimetaličnih orudnjenja Šumadijsko-kopaoničke oblasti. Jedan je od sulfida koji u najvećoj meri koncentriše zlato. Nepoželjan je u rudama jer njegovom oksidacijom na jalovištima može doći do oslobađanja arsena koji spada u elemente toksične za životnu sredinu. U okviru ovog doktorata sistematski su ispitivani arsenopiriti iz različitih stadijuma i tipova orudnjenja rudnih ležišta i mineralizacija Šumadijsko-kopaoničke oblasti (Rudnik, Sastavci, Trepča, Gokčanica – Drenjak i Rujak, Golijska reka i Jurija). Uzorci arsenopirita ispitivani su polarizacionom mikroskopijom ...
    arsenopirit, zlato, skorodit, Šumadijsko-kopaonička oblast, parageneza, zonarnost
    ... 2000; p. 135. Dove, P. M., Rimstidt, J. D. (1985): The solubility and stability of scorodite, FeAsOa x 2H»O. American Mineralogist, 70, 838-844. Drahota, P. and Filippi, M. (2009): Secondary arsenic minerals in the environment: A review. Environment International 35, 1243—1255. Fleet M. E., MacLean ...
    ... tungsten and tin exploitations. Journal of Hazardous Materials, 186, 590—601. Murphy, T. D. (2015): Bismuth in the supergene environment. A Tesis. The University of Western Sydney. O'Day, P. A. (2006): Chemistry and Mineralogy of Arsenic. Elements, 2, 77-83. Oeser, M., Weyer, S., Horn, IL. And Schuth ...
    ... Geolog. i Metal., 41, 5-6, 291-297. Stoffregen, R., 1986. Observations on the behavior of gold during supergene oxidation at Summitville, Colorado, U.S.A., and implications for clectrum stability in the weathering environment. Applied Geochemistry 1, 549-558. Stojanović, N. J., Radosavljević, A., ...

  • Хидрогеохемијске карактеристике и квалитет вода слива Требишњице, Република Српска, Босна и Херцеговина

    Dragoslav R. Banjak (2016-08-25)
    Упркос неповољном временском и просторном распореду, воде су најзначајнијиприродни ресурс Источне Херцеговине. Ова чињеница довела је до реализацијепројекта „Вишенамјенског хидросистема Требишњица“, којим је, премаМилановићу (2006), до сада обухваћено: седам хидроелектрана, шестакумулација, шест брана, шест тунела укупне дужине 59,7 km, неколикоприступних тунела, 62,5 km бетонског канала кроз Попово поље, канал крозДабарско (6750 m) и Фатничко поље (2770 m) и систем тунел-канал или цјевоводпрема Дубравама.У почетку са доминантним енергетским предзнаком, концепција јетрансформисана у интегрално рјешење вишенамјенског коришћења и заштитевода и животне ...
    хидрогеохемијски процеси, мултиваријантна статистичкаанализа, инверзно геохемијско моделовање, квалитет воде, употребиљивост водеза наводњавање, слив Требишњице
    ... protection in the region of the Eastern Herzegovina and Dubrovnik littoral. Therefore, in the river Trebišnjica catchment the principle of the harmonious relation of the society towards natural environment was born, and according to Stevanović (2011) that principle will get its term "sustainable development" ...
    ... (6750 m) and Fatnica polje (2770 m) and tunnel - channel system or a pipeline towards Dubrava have been included so far. At the beginning with dominant power utility intention, the conception is transformed into an integral solution of multipurpose and water protection and environment protection ...
    ... Doctoral Dissertation, the modern technology has been used during the process of gathering data, the systematisation and data processing. In order to research statistical connections between dissolved minerals in water and parameters of natural environment, Q-mode and R- mode of Hierarchical ...

  • Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala

    Srđan B. Stanković (2016-09-11)
    Jezero Robule, formirano u podnožju rudničke raskrivke Oštreljski planir (Rudnik bakra Bor), je nastalo kao posledica rudarskih aktivnosti. Mikrobiološki diverzitet ekstremno kiselog jezera Robule ispitivan je primenom kako klasičnih mikrobioloških metoda (svetlosna mikroskopija i kultivacija na selektivnim podlogama) tako i primenom savremene metode molekularne biologije (analiza polimorfizama terminalnih restrikcionih fragmenata; T-RFLP). Takođe, ispitivan je i potencijal i efikasnost jezerske vode u biološkom luženju mineralnog koncentrata, kao i u bioluženju uzoraka stare flotacijske jalovine Rudnika bakra Bor.Na osnovu dobijenih rezultata ...
    jezero Robule, acidofilne bakterije, bioluženje, kisele rudničke vode, flotacijska jalovina
    ... bacteria usimg cultivation techniques and amplified ribosomal DNA restriction enzyme analysis, Journal of Microbiological Methods 60: 299-313 44. Johnson D.B., Hallberg K.B. (2005) Acid mine drainage remediation options: a review, Science of the Total Environment 338: 3-14 116 45. Johnson D ...
    ... D.B. (2006) Biohydrometallurgy and environment: Intimate and important interplay, Hydrometallurgy 83: 153-166 46. Johnson D.B. (2007) Physiology and biochemistry of acidophilic microorganisms in Gerday C., Glansdorff N. (editors): Physiology and Biochemistry of Extremophiles, ASM Press, Washington ...
    ... (2008) Sustainability in metal mining: from exploration, over processing to mine waste management, Reviews in Environmental Science and Biotechnology 7: 275-285 27. Dong Y., Lin H., Xu X., Zhou S. (2013) Bioleaching of different copper sulfides by Acidithiobacillus ferrooxidans and its adsorption ...

  • 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.

  • Elektromagnetska sprega sistema litosfera-atmosfera-jonosfera

    Aleksandra B. Kolarski (2016-08-25)
    Radio talasi vrlo niskih frekvencija VLF (eng. Very Low Frequency) frekventnog opsega od 3 do 30 kHz, koji se prostiru talasovodom Zemlja-jonosfera (50 -90 km) su, kao što je poznato, efikasni i nezamenljivi u osmatranju pojava u niskoj jonosferi, sa tla...
    prostiranje talasa vrlo niskih frekvencija, talasovod Zemlja-jonosfera, globalno električno kolo, atmosfersko električno pražnjenje, kratkotrajne svetlosne pojave
    ... , J. K. (1992). The Solar-Terrestrial Environment. Cambridge University Press, Cambridge. Harrison, R. G. (2004). The global atmospheric electrical circuit and climate. Surv. Geophys., 25, pp. 441-484. Harrison, R. G., Carslaw, K. S. (2003). Ion-aerosol-cloud processes in the lower atmosphere ...
    ... B. M. (2015). Ionospheric D-Region Temperature Relaxation and Its Influences on Radio Signal Propagation After Solar X- Flares Occurrence, Therm. Sci., 9, pp. 299-309. Baker, D. N. (2000). Effects of the Sun on the Earth’s environment. J. Atmos. Sol.-Terr. Phys., 62, pp. 1669-1681. Barrington-Leigh ...
    ... sen, H., Sentman, D., Wescott, E. (2003). Imaging of elves, halos and sprite initiation at 1 ms time resolution. J. Atmos. Sol.-Terr. Phys, 65, pp. 509– 518. National Research Council (1986). The Earth’s Electrical Environment. Studies in Geophysics. National Academy Press, Washington, DC. page ...

  • Hidrogeohemijska valorizacija esencijalnih mikroelemenata mineralnih voda Srbije

    Jana S. Stojković (2013-09-25)
    Mineralne vode još od davnina privlače pažnju ljudi i to kako u pogledu istraživanja iproučavanja, tako i u pogledu njihovog iskorišćavanja. Naročito je važno poznavanjesadržaja mikroelemenata u njima, jer su to komponente njihovog hemijskog sastavakoje ih odvajaju od tzv. „običnih“ malomineralizovanih voda.U ovom radu proučavani su odabrani esencijalni mikroelementi (fluor, bor, litijum,kalijum, stroncijum i silicijum), u mineralnim vodama Srbije, pri čemu je analiziranopreko 130 uzoraka mineralnih voda iz različitih geoloških sredina, to jest hidrogeološkihrejona. Cilj ovog istraživanja bio je ...
    esencijalni mikroelementi, faktori migracije, zakonomernosti rasprostranjenja, hidrogeohemijski procesi, multivarijantna statistička analiza, mineralne vode Srbije
    ... Muti, A. and Kloppmann, W. (2005) “The EU Drinking Water Directive: The Boron Standard and Scientific Uncertainty.” European Environment, Pp. 1-12. 115. Whitfield, P.S., Le Page, Y., Grice, J.D., Stanley, C.J., Jones, G.C., Rumsey, M.S., Blake, C., Roberts, A.C., Stirling, J.A. and Carpenter, ...
    ... fakultet. 25. Drever, J. I. (1997) The geochemistry of natural waters. 3rd. Upper Saddle River, New Jersey: Prentice-Hall. 26. Edmunds, M. and Smedley, P. (2005) “Fluoride in Natural Waters.” In: Essentials of Medical Geology: Impact of the Natural Environment on Public Health, by O. Sellinus ...
    ... list Gornji Milanovac, L 34-137. Beograd: Savezni geološki zavod. 38. Forbes, R. M., Harriss, R. C., Krook, L. and Kubota, J. (1974) “Fluorine.” In: Geochemistry and the Environment, Volume I. Washington: National Academy of Science. 39. Fordyce, F. M. (2011) “Fluorine: Human Health Risks.” ...

  • Model za optimizaciju graničnog saržaja metala u rudi u funkciji dugoročnog planiranja površinskih kopova

    Daniel P. Kržanović (2016-06-14)
    Optimizacija graničnog sadržaja metala u rudi jedan je od osnovnih koraka u planiranju i dizajniranju površinskih kopova i ima za cilj postizanje maksimalne neto sadašnje vrednosti (NPV). Iz tog razloga, optimizacija graničnog sadržaja i danas je predmet mnogih istraživanja u rudarskoj nauci, sa ciljem rešavanja praktičnih problema u eksploataciji ležišta.Dugoročno planiranje eksploatacije na površinskim kopovima podrazumeva sagledavanje svih relevantih parametara i faktora (geologije rudnog ležišta, tehnologije proizvodnog procesa, kapaciteta otkopavanja i prerade, troškova, cena metala, iskorišćenja i dr) kako ...
    površinski kop, dugoročno planiranje, optimizacija graničnog sadržaja, maksimizacija neto sadašnje vrednosti (NPV).
    ... Reclamation and Environment, Vol. 19, no. 3, pp. 176–187. Asad, M.W.A., 2005b, Cut-off grade optimization algorithm for open pit mining operations with consideration of dynamic metal price and cost escalation during mine life, Proceedings of the 32nd International Symposium on the Application of ...
    ... pit mine production planning: a review of models and algorithms, International Journal of Mining, Reclamation and Environment, Vol. 22, No. 1, pp. 3-35. 291 Pana, M.T., 1965, The simulation approach to open pit design Proceedings of the 5th APCOM symp., Johannesburg, pp. 139 - 144. ...
    ... Slovaca, The Union of Metallurgy, Mining Industry and Geology of Slovak Republic, the Slovak Mining Society, the Faculty of Mining, Ecology, Process Control and Geotechnologies (FBERG) of the Technical University of Kosice (Slovakia), and the Faculty of Mining and Geology (HGF) of the VSB Technical ...

  • Geonasleđe Golije i Peštera

    Ljiljana V. Grujičić-Tešić (2017-09-01)
    Sprovedena istraživanja u ovoj studiji obuhvatila su izdvajanje, opis, evaluaciju i valorizaciju objekata geonasleđa u cilju razvoja istraživane oblasti sa stanovišta geonauka, geoturizma i geoekologije. Na izučavanom području objekti geonasleđa su evidentirani, interpretirani, vrednovani i kategorisani, dat je predlog promocije geoobjekata, i na kraju predložena dopuna inventara objekata geonasleđa Srbije.U protekle četiri godine, na kompleksu geotopa Golije i Peštera istražena su geološka svojstva stena (tip stene, starost, fosilni sadržaj, morfološke i hidrogeološke karakteristike itd.), na osnovu čega je bilo ...
    geodivezitet, geonasleđe, geoturizam, geokonzervacija, Golija, Pešter
    ... Engineering geology and the environment. Rotterdam: A.A Balkema. pp. 2955–2960. Hose, T. A. (2003): Geotourism in England. A Two - Region Case Study Analysis, Unpublished PhD thesis.University of Birmingham. Birmingham: 36. Hose, T. A. (2005a): Geo - Tourism - Appreciating the deep side of landscapes ...
    ... evaluation and valorization of geosites in order to support development of the studied area in the fields of geosciences, geotourism and geoecology. The geosites were registered, interpreted, evaluated and categorized, recommendations about promotion of the geosites were given and, finally, s ...
    ... column of the Upper Cretaceousnear Novi Pazar.– Geološki anali Balkanskoga poluostrva. 52. pp. 107–113. Prysjazhnjuk, V., Kovalenko, V. & Krstić, N. (2000). On the terrestrial and freshwater mollusks from Neogene of Western Serbia. Geology and metalogeny of the Dinarides and the Vardar Zone ...

  • Neogena i kvartarna herpetofauna (Anura i Squamata) Srbije : doktorska disertacija

    Dragana D. Đurić (2019)
    U radu je prvi put opisan deo herpetofaune (Anura i Squamata) iz neogenih i kvartarnih lokaliteta Srbije. Obrađeni su lokaliteti Sibnica, Prebreza, Lazarevc, Vračević i Riđake, neogene starosti. Lokaliteti kvartarne starosti su pećine Mala i Velika Balanica, Pešturina, Hadži Prodanova, Baranica, Vrelska pećina i sedimentne ispune fisura u kamenolomima Venčac i Beočin. U radu je prikazana je taksonomska analiza herpetoloških ostataka. Pored taksonomske analize fosilnog materijala dat je kratak geografsko-geološki opis proučavanih lokaliteta, osnovne osteološke karakteristike anura i skvamata ...
    paleoherpetofauna, Anura, Squamata, kvartar, pleistocen, neogen, Srbija, paleoekologija, paleoklima
    ... Lopez–Garcia, J.M., Huguet, R., Arsuaga, J.L., Bermudez de Castro, J.M., Carbonell, E., 2010b. Climate and environment of the earliest West European hominins inferred from the amphibian and squamate reptile assemblages: Sima del Elefante Lower Red Unit, Atapuerca, Spain. Quaternary Science. Revievs ...
    ... were classified into the 35 taxa, total of the 23 species and 9 genera from 15 families have been identified. A part of the material was determined only to the level of the family (5) and subfamily (1). For the first time in the Serbia the following taxa were described: Agama Daudin, 1802; Gekkonidae ...
    ... 11)(043.3) NEOGENE AND QUATERNARY HERPETOFAUNA (ANURA AND SQUAMATA) OF SERBIA Abstract: The part of herpetofauna (Anura and Squamata) from the Neogene and Quaternary sites of Serbia as the subject of this dissertation was described for the first time. The Sibnica, Prebreza, Lazarevac ...

  • 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
    ... technical products and processes [1,2] as well as in the environment [3-6]. Whereas the technical application of carbon black and activated car- bon has long tradition also including activated carbons from biomass [7], the large-scale car- bonization of biomass has found major interest in the last decade ...
    ... be deter- mined due to the porous nature of the material and the fact that the conductivity of carbon powders depends on the quality of the contact between the particles and on the pressure applied to the samples [61,62]. Since the electrical conductivity influences the polarizability of electron ...
    ... experiment) related to the mass of the analyzed char are shown in Table 4. The chemical composition of the chars differs depending on the production process and the feedstock. The analytical values are given as the mean value and the standard deviation of three determinations. The analytical relative ...

  • Modeliranje tehnoloških procesa u rudarstvu u uslovima nedovoljnosti podataka primenom teorije grubih skupova

    Zoran M. Štirbanović (2015-07-01)
    Rudarstvo, a u okviru njega i priprema mineralnih sirovina, se odlikuje složenošću tehnoloških procesa što je posledica velikog broja uticajnih parametara. Samim tim je potrebno biti veoma obazriv prilikom donošenja odluka u oblasti rudarstva. U cilju što efikasnijeg funkcionisanja procesa, moguće je primeniti različite metode koje služe za pojednostavljenje procesa odlučivanja. Jedna od takvih metoda jeste i teorija grubih skupova. Ona predstavlja relativno novu matematičku teoriju koja je pogodna za razumevanje nepreciznih i nepotpunih podataka kao i za otkrivanje ...
    rudarstvo, priprema mineralnih sirovina, teorija grubih skupova, višekriterijumsko odlučivanje, flotacijsko jalovište, flotacijski kolektor, flotaciona mašina
    ... mill sites and tailings impoundments, Asian mining, Institution of Mining and Metalurgy, London, 1981, www.robertsongeoconsultants.com. 86. A. MacG Robertson, S. C. Shaw, A multiple accounts analysis for tailings site selection, Sudbury 99 Conf. Proceedings Mining and the Environment II, Vol. 3 ...
    ... susceptibility using rough sets, Computers, Environment and Urban Systems 32,2008, pp. 53–65. 64. C. H. Aldridge, Discerning Landslide Hazard Using a Rough Set Based Geographic Knowledge Discovery Methodology, Proceedings of the 11th Annual Colloquium of the Zoran Štirbanović, DOKTORSKA DISERTACIJA: ...
    ... mining. In the experimental part of the dissertation was done testing the possibilities for application of rough set theory to solve three problems: choosing location for the flotation tailings landfill, choosing flotation collector and choosing flotation machine. The parameters that have the most influence ...

  • Development of a petrographic classification system for organic particles affected by self-heating in coal waste. (An ICCP Classification System, Self-heating Working Group – Commission III)

    M. Misz-Kennan, J. Kus, D. Flores, C. Avila, Z. Büçkün, N. Choudhury, K. Christanis, J.P. Joubert, S. Kalaitzidis, A.I. Karayigit, M. Malecha, M. Marques, P. Martizzi, J.M.K. O'Keefe, W. Pickel, G. Predeanu, S. Pusz, J. Ribeiro, S. Rodrigues, A.K. Singh, I. Suárez-Ruiz, I. Sýkorová, N.J. Wagner, D. Životić (2020)
    Self-heating of coal waste is a major problem in the leading coal-producing and consuming countries, independent of the recent or past coal exploitation history. The phenomenon of self-heating is dependent on many factors such as the properties of organic matter (maceral composition and rank), moisture and pyrite content, climate effects, and storage conditions (shape of the dump or compaction of the coal waste). Once deposited, coal waste undergoes oxidation, which can lead to self- heating with the overall temperatures ...
    Stratigraphy,Economic Geology,Geology,Fuel Technology

  • Fuzzy stohastički model izbora sistema otvaranja podzemnog rudnika

    Saša M. Jovanović (2016-05-16)
    Investiciono okruženje skopčano sa rudarskom industrijom je veoma svojstveno kada seuporedi sa okruženjima koje susrećemo u tipičnim proizvodnim industrijama. Neke odkarakterisitka rudarstva, koje su često naznačene kao jedinstvene su: visok intenzitetinvesticija, dugi predproizvodni periodi, visok rizik i neobnovljivost resursa.Investiranje u sistem otvaranja rudnika predstavlja dobar primer ireverzibilneinvesticije. Takva investicija zahteva pažljivu analizu, jer nakon njene realizacije ona sene može nadoknaditi bez značajnog gubitka vrednosti. Očigledno je da izbor sistemaotvaranja podzemnog rudnika pripada strateškom planiranju...
    otkopavanje; otvaranje; mreže i grafovi; fuzzy skupovi; stohastičkiprocesi; indeks konveksnosti; sistemi podrške odlučivanju
    ... UNDERGROUND MINE DEVELOPMENT SYSTEM SELECTION Abstract The investment environment associated with the mining industry is unique when compared with the environment encountered by typical manufacturing industries. Some of the characteristics of mining which are often proclaimed as unique are ...
    ... prevailing on the surface and deposit are not suitable to apply adit as the development system. Shaft, Decline and Shaft-Decline development systems are identified as potential alternatives for the evaluation process. From each access point, we span the ore transportation network to the surface in ...
    ... to one development system. Every section of the network is weighted by an adequate fuzzy cost function, which combines the cost needed to build up the section and the cost of ore transportation along it. The values of this function are changed over the project time, using a stochastic process, Geometric ...

  • Modeliranje disperzije dimnih gasova iz termoelektrane Kostolac B

    Bojan Živanović (2024)
    Bez hrane se može preživeti nedelju dana, bez vode svega nekoliko dana, međutim, bez vazduha se može preživeti najmanje, nekoliko minuta. Pitanje je kakav uticaj na zdravlje čoveka i okoline ima vazduh koji je lošeg kvaliteta, a kojem je skoro celokupno stanovništvo planete izloženo? Ovaj rad se bavi problematikom modeliranja disperzije dimnih gasova iz novog bloka B3 TE ,,Kostolac’’ B. Ključni momenti koji će biti predstavljeni jesu zagađenje, zdravstveni efekti, modeliranje disperzije i analiza dobijenih rezultata korišćenjem programa AERMOD. Analiziran ...
    zagađenje vazduha, podizanje perjanica, modeliranje disperzije polutanata, TE ,,Kostolac B’’
    ... health and environment? This paper deals with the problems of modeling of flue gas dispersion from the new station B3 ofthe “Kostolac B” thermal power station. The key parts that are presented are pollution, health effects, dispersion modeling and analysis of the results by using the AERMOD ...
    ... their project and working properties, have a more significant impact on deterioration of environment quality, compared to modern thermal stations. 'The results presented in this paper were obtained by using the model which includes SO», NO and suspended particles (PMio) emission. The aim of this ...
    ... emission of polluting substances into the environment. Consequently, it can be expected that their impact on people”s health will be within limits ofsocially acceptable norms and risks. Putting new station into operation, it will be possible that some of the old sections be removed from drive into ...