Претрага

Упит dcterms_subject_txt:Environmental and Occupational Health,Pollution,Soil Science,Waste Management and Disposal,Water Science and Technology,Environmental Chemistry,Analytical Chemistry

2285 items

  • Hydrodynamic analysis application of contaminated groundwater remediation to oil hydrocarbons

    Predrag Pajić, Aleksandar Čalenić, Dušan Polomčić, Dragoljub Bajić (2018)
    U ovom radu sagledana je primena hidrodinamičke analize u okviru odabrane remedijacione metode ,,pumpanja i tretiranja” kontaminiranih podzemnih voda ugljovodonicima, na primeru pretakališta rafinerije nafte u Pančevu. Primenjena hidrodinamička analiza predstavlja pravilan, a sve češće i neophodan pristup u savremenoj hidrogeologiji. Prethodnim hemijskim analizama uzoraka tla i podzemnih voda na istražno-osmatračkim objektima detektovano je zagađenje produktima nafte. Novoizvedena istraživanja obuhvatila su izvođenje 12 pijezometara različitih dubina, geoelektrično sondiranje tla, ,,in situ” merenja prisutnog kontaminanta, izdvojenog kao hidrofobna faza LNAPL, ...
    kontaminacija, matematički model, podzemne vode, remedijacija, ugljovodonici

  • Rock slope stability analysis under Hoek–Brown failure criterion with different flow rules

    Svetlana Melentijević, Zoran Berisavljević, Dušan Berisavljević, Claudio Olalla Marañón (2024)
    The stability analysis of homogeneous rock slope following the Hoek–Brown failure criterion under the hypothesis of different flow rules is performed based on limit equilibrium and finite element methods. The applied failure criterion is the generalized Hoek–Brown that can be introduced as a shear/normal function in analysis applying different flow rules. The results are compared with those obtained by the application of equivalent shear strength parameters of the Mohr–Coulomb criterion, considering that this is still the most widely used ...
    Kružna klizna površ, Huk-Braunov kriterijum loma, Kriterijum popuštanja, Smičuća/normalna funkcija, Nivo napona, Verovatnoća i parametarska analiza

  • Stanje i perspektivnost vodosnabdevanja Obrenovca i naselja opštine posle poplava, 2014. godine

    Bojan Hajdin, Dušan Polomčić, Dragoljub Bajić (2017)
    Obrenovac i okolna naselja su tokom 2014. godine zbog poplava u Srbiji pretpeli veliku materijalnu štetu, a pored brojnih privrednih preduzeća ozbiljno je bio ugrožen i sistem vodosnabdevanja. Izvorište „Vić bare“ za vodosnabdevanje grada u selu Zabrežje, na Savi, u potpunosti je potopljeno, a vodovodna mreža, u pojedinim delovima već veoma stara, dodatno je oštećena. Poslednjih nekoliko decenija kao glavni razlozi za probleme u vodosnabdevanju Obrenovca isticane su nedovoljne rezerve podzemnih voda na izvorištu. Novijim istraživanjima utvrđene su rezerve ...
    ... extremely high river stages and water tables and examines source discharge capacities to provide further insight into surface water and groundwater interactions and compare the pre- and post-flood status of a municipal water supply source. Key words: groundwater, Sava river, water supply ...
    ... [5] Hajdin B, Dokmanović P, Stevanović Z, Hajdin K. State of art of Vić Bare Source for Obrenovac Water Supply. Regional IWA Conference on groundwater management in the Danube river basin and other large river basins, Beograd pp. 217-225, 2007. [6] Hajdin B, Polomčić D, Stevanović Z, Bajić ...
    ... of groundwater at the existing source was explored. The largest problem, however, is a high water demand due to inefficient water use and water losses in the distribution network. Given that the said water source relies on bank filtration, the flood was extremely important from a hydrogeological ...

  • Stability, coherent spiking and synchronization in noisy excitable systems with coupling and internal delays

    Franović Igor, Todorović Kristina, Vasović Nebojša, Burić Nikola (2014)

  • 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 (2011)

  • Enhanced Anaerobic Bioremediation Using Emulsified Vegetable Oils

    Zarić Jelena, Bajić Dragoljub, Polomčić Dušan, Petronijević Nela (2013)

  • Prvi nalazi repatih vodozemaca (Urodela) u pleistocenskoj pećinskoj fauni Srbije; još jedna kockica u slagalici

    Dragana Đurić, Katarina Bogićević, Draženko Nenadić, Mihajlo Jovanović, Aleksandra Savković (2023)
    Fosilna fauna pleistocenskih pećina odslikava sastav faune njihove okoline. Najčešće se u njima naleze ostaci krupnih sisara ledenog doba koji su je koristili kao stanište. Uz njih česti su i ostaci drugih sitnih kičmenjaka kao što su sitni sisari, ribe, vodozemci, gmizavci i ptice. Ostaci sitnih kičmenjaka u većini slučajeva u pećinu dospevaju kao plen grabljivica (ptice i sisari) ali je manji broj njih pećinu koristio i kao sklonište ili stanište. U proučavanje fluktuacija pleistocenske klime sve češće se ...
    ... significantly drier environmental conditions. As in Mala Balanica, only one vertebra was found in Mirosava and was probably washed from the surrounding area. However, this newt this time indicates that the cave environment was more xerophytic, probably covered with drier grassy glades and sparse forest ...
    ... of their numbers. Like other amphibians, they are attached to water habitats and habitats with increased humidity. The species Sa/amandra salamandra 1s common in hilly and mountainous moist forests at higher altıtudes, but not over 1000m. It is very rare in the plains. Hibernation is usually in groups ...
    ... amphibians, reptiles, and birds are common. In most cases, the remains of small vertebrates end up in the cave as prey for predators (birds and mammals), but a smaller number of them also used the cave as a shelter or habitat. Data on the composition of herpetofauna (amphibians and reptiles) are in ...

  • Sastav i teksture minerala FeO-Fe2O3-TiO2 sistema u vulkanskim stenama i porfirskim ležištima bakra Borske metalogenetske zone

    Aleksandar Luković (2021)
    Proces obrazovanja minerala iz sistema FeO-Fe2O3-TiO2 u uzorcima vulkanskih stena i porfirskih orudnjenja borske zone prikazan kroz pojavu magnetita/hematita i njihovih alteracija. Minerali ove zone su ispitivani optičkim metodama (odbijena i propuštena svetlost), SEM-EDS/BSD, XRPD, LA-ICP-MS metodama. Rezultati ispitivanja su, pored glavnih Fe – Ti oksida, otkrili prisustvo ferijskog ilmenita u hornblenda andezitima I vulkanske faze kao i magnetita sa većim koncetracija Cr u zoni zlotske magnetne anomalije. Ispitivanje uzoraka iz bušotina porfirskih sistema borske zone otkriva postojanje nekoliko ...
    magnetit, hematit, hemoilmenit, Borska metalogenetska zona, porfirska ležišta
    ... Mücke, A., Raphael Cabral, A., (2005): Redox and nonredox reactions of magnetite and hematite in rocks. Chem. Erde Geochem., 65, 271–278. Nadoll, P., & Koenig, A. E., (2011): LA-ICP-MS of magnetite: methods and reference materials. Journal of Analytical Atomic Spectrometry, 26(9), 1872. Nadoll ...
    ... Lindsley, D.H., & Prewitt, C.T., (1984): Crystal stucture and cation distribution in titanomagnetites (Fe3-xTixO4). American Mineralogist, 69, 754-770. Whalen, J.B., & Chappell, B .W., (1988): Opaque mineralogy and mafic mineral chemistry of I- and S-type granites of the Lachlan Fold belt, southeast Australia ...
    ... (1980): The ore minerals and their intergrowths. Pergamon press (2nd ed.), 1205 str, u dva toma. (Prvo izdanje, 1969). 95 Ramdohr, P., (1975): Die Erzmineralien und ihre Verwachsungen. Akademie-Verlag, Berlin. Ray, G.E., Webster, I.C.L., (2007): Geology and chemistry of the low Ti magnetite-bearing ...

  • Optimisation of underground mine decline development system using genetic algorithm

    Zoran Gligorić, Aleksandar Ganić, Rade Tokalić, Aleksandar Milutinović (2014)
    ... Computer Science and Applications, 3 (6), pp.6-12. 2 BRAZIL, M. et al. (2003) Optimising Declines in Underground Mines. Mining Technology. 112 (3), pp.164-170. 3 BRAZIL, M. et al. (2008) Decline design in underground mines using constrained path optimisation. Mining Technology, 117 (2), ...
    ... x         (1) In this formulation x is the n-dimensional vector of SBP and UMCP coordinates, while xL and xU are the n-dimensional vectors representing the lower and upper bounds of the coordinates, i.e. the design space. The optimisation goal is to minimize the objective ...
    ... the cost is a combination of both development and haulage costs, subject to design constraints (Brazil et al. 2003; 2008). In our model we defined spatial network by nonlinear constrained objective function representing the cost of mine development and ore haulage. To find the minimum value of ...

  • Physical-chemistry characterization of the modified limestone

    Mihajlović Slavica, Vučinić Dušica, Sekulić Živko, Jovanović Vladimir, Radulović Dragan (2013)

  • Crystal chemistry of some KF flux grown REE-silicates

    Dabić Predrag, Vulić Predrag, Kahlenberg Volker, Kremenović Aleksandar (2015)

  • Influence of Galena Grain Size and Collector Concentration on Recovery and Flotation Rate

    Cvetićanin Lidija, Lazić Predrag, Vučinić Dušica (2018)

  • Model of oil and gas pipeline rinsing using the fluid flow

    Batalović Veselin, Danilović Dušan, Živković Marija (2011)

  • Minor and trace elements in olivines as probes into early igneous and mantle melting processes

    Foley Stephen, Prelević Dejan, Rehfeldt Tatijana, Jacob Dorrit (2013)

  • Sinteza i strukturna karakterizacija mikroporoznih arsenata i fosfata

    Sabina Z. Kovač (2015-09-28)
    Predmet rada i istraživanja ove doktorske disertacije su sinteza i strukturnekarakteristike novih kristalnih arsenata i fosfata koji sadrže Mg, K, Ca, Mn, Fe, Co, Ni,Cu, Zn, Sr, Ba i druge katjone. U strukturama arsenata i fosfata, AsO4- i PO4-tetraedrinajčešće se vezuju sa tetraedarski ili oktaedarski koordinisanim katjonima prelaznihmetala formirajući otvorene strukture (slojeve ili 3D mreže) sa širokim opsegomrazličitih topologija. U šupljinama ili porama u obliku povezanih ili nepovezanihkanala, tunela, kaveza i međuslojnog prostora mogu se ugraditi različiti vanmrežni joni(obično ...
    hidrotermalna sinteza, mikroporozna jedinjenja, arsenati, fosfati,rendgenska strukturna analiza
    ... (2009) ”Arsenic: Environmental Chemistry, Health Threats and Waste Treatment”, John Wiley and Sons, The Atrium, Southern Gate, Chichester, West Sussex, PO19 8SQ, United Kingdom. 75. Hennig, T. J. and Jacobs, H. (1992) Z. Anorg. Allg. Chem. 616, 71–78. 76. Hughes, J. M. and Rakovan, J. (2002) ...
    ... J. and Parshley J. (2001) ”Arsenic cycling in the mining environment. Characterization of waste, chemistry, and treatment and disposal”, proceedings and summary report on U.S. EPA workshop on managing arsenic risks to the environment, May 1–3, Denver, Colorado, USA. 28. Brese, N. E. and O’Keeffe ...
    ... 18. Baur, W. H. and Fischer, R. X. (2002) ”Zeolite-Type Crystal Structures and their Chemistry”, Zeolite Structure Codes DAC to LOV. Subvolume C in Landolt- Börnstein, Numerical Data and Functional Relationships in Science and Technology, New Series, Group IV: Physical Chemistry, Volume 14, M ...

  • Determination of Mechanical Properties of Altered Dacite by Laboratory Methods

    Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović (2021)
    This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...
    Geology, Geotechnical Engineering, Engineering Geology
    ... 1 and Nikola Zivanovié ” Mining Department, Mining and Geology Faculty, University of Belgrade, 11000 Belgrade, Serbia; vladimir.cebasek@ref.bg.ac.rs (V.C.); vladimir.milisavljevic@rgf.bg.ac.rs (V.M.); dejan.stevanovic@rgf.bg.ac.rs (D.S.) Department of Ecological Engineering for Soil and Water Resources ...
    ... Mining Department, Mining and Geology Faculty, University of Belgrade, 11000 Belgrade, Serbia; vladimir.cebasek@rgf.bg.ac.rs (V.Č.); vladimir.milisavljevic@rgf.bg.ac.rs (V.M.); dejan.stevanovic@rgf.bg.ac.rs (D.S.) 2 Department of Ecological Engineering for Soil and Water Resources Protection, Faculty ...
    ... sandstone and siltstone for building slopes on the state highway is changing. Liang et al. [7] were doing laboratory analysis on natural samples in layers consisting of salt rock and anhydrite to estimate the strength of rock material for building the storage of liquids, gases, and solid waste material ...

  • Applying GPR and 2D ERT for Shallow Landslides Characterization: A Case Study.

    Abolmasov Biljana, Ristić Aleksandar, Govedarica Miro (2013)

  • Phase, morphological and statistical analysis of urinary stones from Serbian patients.

    Mirković Miljana, Dosen Ana, Matović Branko, Erić Suzana, Vulić Predrag, Rosić Aleksandra (2018)

  • Ostracods as indicator of the Badenian marine flooding (Central Paratethys, Bosnia & Herzegovina and Serbia)

    Ljupko Rundić (2022)
    ostakode, miocen, badenska transgresija, Centralni Paratetis, Bosna, Srbija

  • Cutting elements of bucket wheel excavators in lignite opensast mines: Methodology and performed solutions

    Dragan Novaković, Predrag Jovančić (2016)
    Bucket and cutting elements geometry (teeth and hardened steel) have very powerful impact on effective operation of bucket wheel excavator, and that`s why, problems of optimal geometry of elements in specific conditions always are of special interest in mining science and technique. If we want to achieve satisfactory utilization of bucket wheel excavator, it is necessary to modulate geometry material characteristics and technological parameters, as regards bucket wheel excavator work regime, and bucket wheel working performances, and also bucket ...