Претрага
500 items
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The Potential of Biomarkers to Distinguish Lower and Middle Miocene Lignites from the Coal-Mining District of Lusatia
... spectrometry. TOC contents (48.17 – 57.20 %) associated with ash contents < 11.5 % indicate relatively stable water-level during peat formation and moderate supply of mineral matter. Total sulphur content ranges from 0.67 to 0.80% and from 0.90 to 1.24 % in Lower and Middle Miocene samples ...
... of diterpenoids and non-hopanoid pentacyclic triterpenoids (Stojanović and Životić, 2013) are generally low in all samples consistent with stable water-level during peatification, signifying reducing conditions in the palaeomire. Good correlation between content of hopanoids and degree of aromatization ...
... characterized by more pronounced variations of biomarker signatures than Lower Miocene samples, most probably due to the more pronounced fluctuation of water-level and/or palaeo-wildfires. The main differences between Middle and Lower Miocene coals are expressed by higher dehydroicetexane content, Paq ...I. Kojic, J. Kus, D. Zivotic, K. Stojanovic. "The Potential of Biomarkers to Distinguish Lower and Middle Miocene Lignites from the Coal-Mining District of Lusatia" in 30th International Meeting on Organic Geochemistry (IMOG 2021), European Association of Geoscientists & Engineers (2021). https://doi.org/10.3997/2214-4609.202134092
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Hidrogeotermalni resursi teritorije grada Beograda
Ana Vranješ (2012-12-12)Republika Srbija je izrazito bogata hidrogeotermalnim resursima. Podzemne vode satemperaturama preko 20oC (pa do 96oC, Vranjska Banja) relativno su dobro iskorišćene.Nasuprot njima, podzemne vode sa temperaturama do 20oC do sada uglavnom nisu bilepredmet istraživanja sa bilo kog aspekta izuzev za potrebe vodosnabdevanja. Razvojemsistema toplotnih pumpi, mogućnosti višenamenskog korišćenja ovih voda značajno suuvećane.Teritorija Beograda odlikuje se značajnim resursima podzemnih voda, pre svega u okvirualuvijalnih peskovito-šljunkovitih naslaga i neogenih tortonsko-sarmatskih krečnjačkihnaslaga. Temperatura ovih voda ne prelazi 25oC. Njihovim zahvatanjem preko istražnoeksploatacionihbunara ...geotermalna energija, hidrogeotermalni resursi, hidrogeotermalni sistemi, hidrogeotermalnapotencijalnost, energetska valorizacija, hidrogeološka rejonizacija, grad BeogradAna Vranješ. "Hidrogeotermalni resursi teritorije grada Beograda" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2012-12-12)
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Uticaj klimatskih promena na vodne resurse: primer sliv reke Mlave
Vesna Ristić Vakanjac, Saša Milanović, Ljiljana Vasić, Boris Vakanjac, Saša Bakrač, Radoje Banković, Veljko Marinović (2023)Na teritoriji Jugositočne Evrope, pa samim tim i u delu gde živimo (Republika Srbija i Republika Bosna i Hercegovina) za očekivati je da dođe do značajnijeg porasta temperature vazduha u značajnijoj meri, što će imati značajnijeg uticaja na padavine, njihovu unutargodišnju raspodelu, kao i pojavu sve više prisutnih ekstremnih vrednosti (izuzetno sušnih i kišnih godina). Sve ovo će uticati i na sam režim površinskih i podzemnih voda, resursa bez kojih život na ovoj planeti ne bi ni postojao. Da ...Vesna Ristić Vakanjac, Saša Milanović, Ljiljana Vasić, Boris Vakanjac, Saša Bakrač, Radoje Banković, Veljko Marinović. "Uticaj klimatskih promena na vodne resurse: primer sliv reke Mlave" in Zbornik radova III Kongresa geologa Bosne i Hercegovine sa međunarodnim učešćem, Neum, 21-23.9.2023., Ilidža : Udruženje/udruga geologa u Bosni i Hercegovini (2023)
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Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability
Marija Živković, Dejan Ivezić (2021)Transformation of the heating sector is recognized as being essential for ensuring reliable and afordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import dependency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered and treated as a big advantage of district heating systems. Despite many advantages, sewage wastewater heat is still a mostly unused resource at the global level and a totally unused ...рекуперација топлоте из отпадних вода, систем даљинског грејања, топлотне пумпе, енергетске уштеде, емисија угљендиоксида, енергетска безбедност, Србија... treated water and river Sava (recipient) are presented in Table 3. Even in the winter period, the temperature of treated water is higher than 11 °C, so it is adopted to be a minimal available temperature of the heat source. For calculations, the flow rate of 286 l/s of discharged water is adopted ...
... lignite-fuelled thermal power plants (Statistical Office of Table 3 Temperature of treated water and river Sava (recipient), (°C) Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Treated water 11.1 11.3 14.1 15.9 18.8 22.2 23.8 24.2 21.8 19.7 15.8 12.2 Sava 3.1 3.9 6.9 11.2 15.8 19.8 22 ...
... effects on carbon dioxide emission reduction of absorption waste heat pumps application for space heating. Mateu-Royo et al. (2020) presented the thermo-economic optimization, focusing on performance of the system and environmental analysis. Koll- mann et al. (2017) proposed a novel method to assess ...Marija Živković, Dejan Ivezić. "Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability" in Clean Technologies and Environmental Policy, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10098-021-02063-6
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Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)
Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović. "Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)" in Challenges : Sustainable Land Management – Climate Change, Advances in Geoecology 43, Catena Verlag GMBH (2014)
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Regionalna karakterizacija karstnih podzemnih voda dela centralnog Balkana u funkciji njihovog održivog korišćenja i menadžmenta
Veljko J. Marinović (2022)Karstne podzemne vode koristi oko 700 miliona ljudi na svetu, čime je njihov značaj za svetsko stanovništvo nemerljiv. U sklopu doktorske disertacije vršena su istraživanja i analize karstnih sistema dela centralnog Balkana (Srbije, Crne Gore i Savskog sliva Bosne i Hercegovine), kako bi se evaluirao ovaj dragoceni resurs. Analize su vršene na primerima karstnih sistema vrela Perućac, Seljašnica, Mokra i Mlava (Srbija), Oko Bijele i Rijeka Crnojevića (Crna Gora) i vrelo Bosne (Bosna i Hercegovina), kao i na regionalnom ...karstni sistem, podzemna voda, pritisci na kvantitet i kvalitet, menadžment podzemnih vodnih resursaVeljko J. Marinović. Regionalna karakterizacija karstnih podzemnih voda dela centralnog Balkana u funkciji njihovog održivog korišćenja i menadžmenta, Beograd : [V. Marinović], 2022
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Funkcionisanje i uticaj epikarsta na režim, bilans i kvalitet podzemnih voda istočnog dela karstnog sistema Suve planine
Branislav Z. Petrović (2020)Epikarst je deo karstne izdani koji se nalazi u okviru nadizdanske zone i predstavlja kompleksnu tačku dodira i mešanja nekonsolidovanog materijala sa površine terena, ostataka karbonatnih stena izmenjenih korozivnim delovanjem vode, živog sveta i njihovih ostataka, koja je delimično zasićena podzemnom vodom. Kompletan sud o stepenu razvoja i prisustva epikarsta na nekom krečnjačkom terenu moguće je doneti uz multidisciplinarna i obavezna detaljna hidrogeološka istraživanja. Poligon za sprovedena istraživanja je bio karstni masiv Suve planine, koja u geološkom i geografskom smislu ...epikarst, karstni sistem, podzemne vode, procesi samoprečišćavanja, hidrohemijski i mikrobiološki procesi u podzemnoj vodiBranislav Z. Petrović. Funkcionisanje i uticaj epikarsta na režim, bilans i kvalitet podzemnih voda istočnog dela karstnog sistema Suve planine, Beograd : [B. Petrović], 2020
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Старење бунара у алувијалним срединама различитог степена оксичности
Brankica Majkić (2013-09-27)Старење бунара настаје као последица процеса корозије и колмирања. Процесекорозије могуће је спречити уградњом филтерских конструкција од материјалаотпорних на корозију. Колмирање може да настане без обзира на врсту материјалаод кога се праве бунарске конструкције, а процесом може бити захваћенаприфилтарска зона па и зона саме водоносне средине. Из тог разлога тезa јеусмеренa на процесе који доводе до колмирања бунара и последицe опадањaкапацитета водозахватних објеката. Полазна хипотеза је да бунари стареразличитом брзином у срединама различитог степена оксичности. Хидрохемијскеи микробиолошке карактеристике подземних ...старење бунара, алувијалне издани, степен оксичности средине,колмирање, бунарски талог, локални хидраулички губитак, дозвољене улазнебрзине... tal Earth Sciences 64(1):119-131 72. Larson T.E. and R. V. Skold (1958): Laboratory Studies Relating Mineral Quality of Water to Corrosion of Steel and Cast Iron, 1958 Illinois State Water Survey, Champaign, IL pp. [43] — 46: ill. ISWS C-71 73. Ласкарев В. (1951): О стратиграфији квартарних ...
... Истраживања Малешевића са сарадницима (1979) показују да међу минералима тешке фракције преовлађују металични минерали (22-50%), амфиболи (14-26%) и гранати (око 14%). Под минералима тешке фракције подразумевају се они минерали који имају специфичну густину већу од 2,85 g/cm 3 . Код лаке фракције ...
... obtained during the research of water sources Ključ, Trnovče and drainage system Kovin-Dubrovac, as well as knowledge gained from the research of certain Belgrade water wells, can be applied to the other Serbian alluvial water sources and drainage systems. Key words: water well ageing, alluvial aquifers ...Brankica Majkić. "Старење бунара у алувијалним срединама различитог степена оксичности" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-09-27)
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Mitigating hydrate formation in onshore gas wells: A case study on optimization techniques and prevention
Gas wells, particularly those situated onshore, play a vital role in the global energy sector by supplying a significant portion of natural gas. However, operational challenges, notably gas hydrate formation, pose substantial issues, leading to complications such as flowline blockages and unexpected well shutdowns. Gas hydrates, crystalline structures resembling ice, ...Gas Well, Gas Hydrate Formation, Well Modeling, Well Performance Optimization, Choke Position Adjustments, Methanol InjectionMilica Ješić, Bojan Martinović, Stefan Stančić, Miroslav Crnogorac, Dušan Danilović. "Mitigating hydrate formation in onshore gas wells: A case study on optimization techniques and prevention" in Underground Mining Engineering, Beograd : Rudarsko-geološki fakultet (2023)
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Mineral Resources of Serbia: Environmental, Societal and Economic Challenges
... The underground water potential is estimated to be 60,000 1/s to 90,000 1/s, of which about 21,000 l/s is used for drinking water supply. Serbia's territory has numerous sources of mineral and thermal water. More than 1,000 sources of mineral, thermal and thermal-mineral water have been registered ...
... In Serbia, all mineral resources (including: coal, mineral water, therapeutic muds and geothermal resources) and hydrocarbon resources are property of the state. Consequently, legislation for the mineral industry is predominantly defined on the state level. Keywords: mineral resources, development ...
... in charge of both activities. The mineral resources under the LMGE are: all mineral commodities, ground water resources, geothermal resources and other geological resources including mining residues from waste dumps and tailings and all secondary mineral resources obtained during mining activities ...Vladimir Simić, Rade Jelenković, Dragana Životić. "Mineral Resources of Serbia: Environmental, Societal and Economic Challenges" in Serbia: Current Issues and Challenges in the Areas of Natural Resources, Agriculture and Environment,, Nova Science Publishers, Inc. (2019)
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Hidrodinamički model Pirotske kotline sa karstnim masivom Stare planine
Polomčić Dušan (2012)Polomčić Dušan. "Hidrodinamički model Pirotske kotline sa karstnim masivom Stare planine" in Climate Change and Impacts on Water Supply, Beograd: (2012): 533-537
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Hydrodynamic model of Pirot basin and karst massif of Stara planina
Polomčić Dušan (2012)Polomčić Dušan. "Hydrodynamic model of Pirot basin and karst massif of Stara planina" in International Monography Climate Change and Impacts on Water Supply, Beograd: (2012): 391-416
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Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation
The Dark Gate is the monument of culture, part of the cultural and historical complex of the Belgrade Fortress. It is constructed of limestone blocks that after 270 years of exposure to environmental conditions and different anthropogenic influences show wide ranges of decay forms. During 2007, detail registration of all built limestone microfacies and weathering forms was done using tools of monument mapping. A correlation scheme ‘‘intensity– damage category’’ was made according to the type, intensity, and distribution of ...... moisture/water for castern side of gate. Water draining from the slope causes higher moisture content in the walls on the castern side of the gate in comparison to the western side (Fig. 7a). It has already been mentioned that these built limestones have high porosity which enables water to penetrate ...
... into the inner parts of blocks. Pore communications and their size enable water circulation through all gate construction not only from slope, but also groundwater and rain Wwater, tOO (Fig. 7b). Percolating rain water in sheltered stone blocks is related to the destroyed waterproofing layers ...
... Earth Sci (2015) 73:606181–6193 6191 || level of groundwater rising Fig.7 a The position of Dark Gate and the direction of water draining from slope; b directions of water moving down slope and rising from the ground Linear damage index - Dl,„ 82007 02014 quantifiable evidence that the eastern ...Maja Franković, Nevenka Novaković, Vesna Matović. "Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation" in Environmental Earth Sciences, Springer Science and Business Media LLC (2015). https://doi.org/10.1007/s12665-014-3843-z
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Enhanced Anaerobic Bioremediation Using Emulsified Vegetable Oils
Zarić Jelena, Bajić Dragoljub, Polomčić Dušan, Petronijević Nela. "Enhanced Anaerobic Bioremediation Using Emulsified Vegetable Oils" in Digital Proceedings of the 8th Conference on Sustainable Development of Energy Water and Environmental Systems, Dubrovnik: (2013): 1-7
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Simulation of karst spring daily discharges
Ristić-Vakanjac Vesna, Polomčić Dušan, Blagojević B., Čokorilo Marina, Vakanjac Boris. "Simulation of karst spring daily discharges" in Proceedings of the 5th Conference on Water, Climate and Environment BALWOIS, Ohrid: (2012): 1-12
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Long-Term Planning Methodology for Improving Wood Biomass utilization
Vukašinović V., Gordić D., Živković Marija, Končalović D., Živković D.. "Long-Term Planning Methodology for Improving Wood Biomass utilization" in 3rd South East European conference on sustainable development of energy, water and environment systems (2018): 66
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Global trend and negative synergy: Climate changes and groundwater over-extraction
Stevanović Zoran (2013)Stevanović Zoran. "Global trend and negative synergy: Climate changes and groundwater over-extraction" in Proceedings of the International Conference “Climate Change Impact on Water Resources”, 17-18 Oct.2013, Belgrade, Belgrade:Institute of Wat. Manag. J.Cerni & WSDAC (2013): 42-45
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Mapping the Late Miocene – Pliocene shelf-edge clinoforms across the Pannonian Basin
Magyar Imre, Radivojević Dejan, Rabagia Anna Maria. "Mapping the Late Miocene – Pliocene shelf-edge clinoforms across the Pannonian Basin" in Annual Meeting for the Geoscientists Basin Evolution and Geological Resources: Water, Hydrocarbon, Geothermal Energy Szeged, Budapest:Akademiai Kiado (2010): 84-86
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Sustainable transition of district heating systems in Serbia, or can engineers do it alone?
Ivezić Dejan, Živković Marija (2018)Ivezić Dejan, Živković Marija. "Sustainable transition of district heating systems in Serbia, or can engineers do it alone?" in Digital Proceedings of the 3rd South East European Conference on Sustainable Development of Energy, Water and Environment Systems, Novi Sad: (2018): 0206-1-10
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Hydrodynamic model of the open-pit mine “Buvač” (Republic of Srpska)
Polomčić Dušan, Bajić Dragoljub, Papić Petar, Stojković Jana. "Hydrodynamic model of the open-pit mine “Buvač” (Republic of Srpska)" in Journal of Sustainable Development of Energy, Water and Environment Systems (JSDEWES) 1 no. 3, Zagreb:SDEWES Centre (2013): 260-271