Претрага
511 items
-
The Potential of Biomarkers to Distinguish Lower and Middle Miocene Lignites from the Coal-Mining District of Lusatia
... using gas chromatography-mass 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 ...
... 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
-
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)
-
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)
-
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
-
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
-
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)
-
Hidrogeohemija prirodnih radioaktivnih elemenata u podzemnim vodama Srbije
Marina D. Ćuk (2018-02-23)Osnovni cilj doktorske disertacije predstavljao je definisanje prirodnih koncentracija (engl. background values) U, Th, i K u podzemnim vodama, i definisanje hidrogeohemijskih uslova koji utiču na distribuciju navedenih elemenata u podzemnim vodama...prirodni radioaktivni elementi, podzemna voda, geohemijske sredine, hidrogeohemijski uslovi, neparametarska statistička analiza, logistički model, hidrohemijsko modeliranje... T. 1988. Estimation of descriptive statistics for multiply censored water quality data. Water Resources Research 24 (12): 1997-2004. 58. Helsel DR, Hirsch RM. 2002. Statistical Methods in Water Resources. Techniques of Water-Resources Investigations of the United States Geological Survey. Hydrologic ...
... andthorium in soil and water. Neth. J. Agric. Sci. 28: 40 – 62. 55. Harris DC. 2003. Quantitative Chemical Analysis. 6th ed. WH Freeman & Company, New York. 56. Helsel DR, Gilliom RJ. 1986. Estimation of Distributional Parameters for Censored Trace Level Water Quality Data. Water Resources Research ...
... 208:114 – 127. 71. ISO 10703. Water Quality – Determination of the activity concentration of radionuclides by high resolution gamma-ray spectrometry; 1997 (ISO TC 147/WG4). 72. ISO 9696. Water Quality – Measurement of Gross Alpha Activity in Non-saline Water-thick Source Method; 1992 (ISO/TC ...Marina D. Ćuk. "Hidrogeohemija prirodnih radioaktivnih elemenata u podzemnim vodama Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-02-23)
-
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
-
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 ...... on stone surface and rising velocity of decay pro- cesses. All of these sources of moisture/water caused dissolution of poorly cemented algal rudstone and sparite cement of grainstone. It resulted in crumbling, granular disintegration, or occurring of thin white crust on stone surface as consequence ...
... 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 ...
... as surface recession and relief, only occasionally as outburst. Black crusts and white calcite crusts are present on majority of the stone blocks on the south facade. While black crusts are the ones that provoke surface recession, white crusts are thin and uniformly cover the surface of stone ...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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
Multi-criteria decision analysis for the purposes of groundwater control system design.
Bajić Dragoljub, Polomčić Dušan, Ratković Jelena. "Multi-criteria decision analysis for the purposes of groundwater control system design." in Water Resources Management 15 no. 31, :Springer (2017): 4759-4784. https://doi.org/10.1007/s11269-017-1777-4
-
Održivo korišćenje mađarsko-srpskih međugraničnih vodnih tela
Dušan Polomčić, Zoran Stevanović, Saša Milanović, Stanko Sorajić, Bojan Hajdin, Željko Kljajić (2010)... slightly (in Hungary). The main pressure on groundwater extraction is shared between different water-bearing layers. While in Serbia the main tapping is from the upper section up to 200 m depth, for the water supply of the main Hungarian consumers and for geothermal energy the deeper aquifer layers ...
... period of work, the foundation has been successfully created for future mutual cooperation and sustainable water management. Key words: transboundary aquifer, hidrodinamical model, ground water source, sustainable development Redigovano 15.11.2010. DuSan Polom¢i¢ i saradnici OdrZivo koris¢enje ...
... slightly (in Hungary). The main pressure on groundwater extraction is shared between different water-bearing layers. While in Serbia the main tapping is from the upper section up to 200 m depth, for the water supply of the main Hungarian consumers and for geothermal energy the deeper aquifer layers are ...Dušan Polomčić, Zoran Stevanović, Saša Milanović, Stanko Sorajić, Bojan Hajdin, Željko Kljajić. "Održivo korišćenje mađarsko-srpskih međugraničnih vodnih tela" in Vodoprivreda 42 no. 04-Jun, Beograd : Jugoslovensko društvo za odvodnjavanje i navodnjavanje (2010): 223-235
-
Model of Defining the Catchment Area of Karst Springs - the Case Study of Vapa Spring (South-West Serbia)
Čokorilo Marina, Ristić-Vakanjac Vesna, Stevanovic Zoran, Polomčić Dušan. "Model of Defining the Catchment Area of Karst Springs - the Case Study of Vapa Spring (South-West Serbia)" in XXVth Conference of the Danube Countries on Hydrological Forecasting and Hydrological Bases of Water Management, Budapest: (2011): 1-8