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Упит dcterms_subject_txt:Water Science and Technology,Aquatic Science,Geography

2391 items

  • Present Situation and Alternative Water Supply Solutions for Northern Vojvodina (Serbia)

    Bojan Hajdin, Vesna Ristić-Vakanjac, Dušan Polomčić (2020)
    The northern part of the Autonomous Province of Vojvodina is situated in the central and southeastern sectors of the Pannonian Basin. Drinking water supply is provided by groundwater abstraction from depths of 60 to 200 m. The quality of that water is poor, especially due to high concentrations of arsenic which most water supply systems do not remove. Current planning documents call for the construction of large regional water supply schemes on the banks of the Danube and Tisa ...
    podzemne vode, regionalni sistem vodosnabdevanja, arsen

  • The impact of the Covid-19 pandemic on the economy, water resources and sustainable development

    Milan Tucaković, Dragoljub Bajić, Dušan Polomčić (2022)
    ванредна ситуација, загађење подземних вода, водни сектор

  • A contribution to the understanding of the discharge dynamics and water balance of the karst spring Gornji Dušnik (Suva Planina)

    Aleksandar Tanasković, Vesna Ristić Vakanjac, Dušan Polomčić, Jelena Ratković (2023)
    A sufficiently long time-series of daily discharges is needed to assess the discharge dynamics and calculate the water balance equation parameters of a spring (river source). The paper assumes that a catchment is gauged if a time-series of observations of at least 30 years is available, which is a rare case in Serbia. One-year monitoring is often set up to verify the reserves of a water source or spring intended for capture. Monitoring ceases after the final report is ...
    discharge dynamics, water balance, catchment area, karst spring Gornji Dušnik, Suva Planina

  • Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija

    Srđan D. Kostić (2013-11-04)
    U ovoj disertaciji, cilj istraživanja bio je određivanje dinamičkih svojstava potresaizazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija.Analiza potresa izvedena je sa dva aspekta – u prvom delu istraživanja izučavane suvremenske serije oscilovanja tla za vreme potresa, a u drugom delu vršena je analizastabilnosti fenomenološkog Baridž-Knopof modela bloka sa oprugom. Vremenske serijeoscilovanja tla proučavane su primenom postupka analize surogat podataka, kao ikorišćenjem metoda analize nelinearnih vremenskih serija (primena teoreme orazvijanju skalarne vremenske serije). Analiza vremenskih serija izvedena je ...
    potres, naponsko stanje, podzemne prostorije, bifurkacije, vremenskaserija, deterministički haos, stohastičnost, perturbacije, vremensko kašnjenje, jačina trenja
    ... Britain, Quaternary Journal of Engineering Geology and Hydrogeology 39, 5-50. 45. Dulinska, J.M., Fabijanska, M. 2011. Large-dimensional shells under mining tremors from various mining regions in Poland. World Academy of Science, Engineering and Technology 59, 1443-1450 46. Eckmann, J.P., Oliffson Kamphorst ...
    ... 37, 341 p. 35. Daihua, Z., Miller, H.D.S., Kaiser, P. K. 1989. Numerical study of violent rock failure by stick-slip on joints, Mining Science and Technology, 9, 241–251. 36. Davies, N., Kijko, A. 2003. Seismic risk assessment: with an application to the South African Insurance Industry, South ...
    ... Scholz, C. H. 1993. Chaotic behavior and mining- induced seismicity, In: Young, R.P. (ed.) “Rockbursts and Seismicity in Mines” Balkema, Rotterdam, 233-237. 125.Morrow, C.A., Moore, D.E. and Lockner, D.A. 2000. The effect of mineral bond strength and adsorbed water on fault gouge frictional strength ...

  • Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija

    Srđan D. Kostić (2013-11-04)
    U ovoj disertaciji, cilj istraživanja bio je određivanje dinamičkih svojstava potresaizazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija.Analiza potresa izvedena je sa dva aspekta – u prvom delu istraživanja izučavane suvremenske serije oscilovanja tla za vreme potresa, a u drugom delu vršena je analizastabilnosti fenomenološkog Baridž-Knopof modela bloka sa oprugom. Vremenske serijeoscilovanja tla proučavane su primenom postupka analize surogat podataka, kao ikorišćenjem metoda analize nelinearnih vremenskih serija (primena teoreme orazvijanju skalarne vremenske serije). Analiza vremenskih serija izvedena je ...
    potres, naponsko stanje, podzemne prostorije, bifurkacije, vremenskaserija, deterministički haos, stohastičnost, perturbacije, vremensko kašnjenje, jačina trenja
    ... Britain, Quaternary Journal of Engineering Geology and Hydrogeology 39, 5-50. 45. Dulinska, J.M., Fabijanska, M. 2011. Large-dimensional shells under mining tremors from various mining regions in Poland. World Academy of Science, Engineering and Technology 59, 1443-1450 46. Eckmann, J.P., Oliffson Kamphorst ...
    ... 37, 341 p. 35. Daihua, Z., Miller, H.D.S., Kaiser, P. K. 1989. Numerical study of violent rock failure by stick-slip on joints, Mining Science and Technology, 9, 241–251. 36. Davies, N., Kijko, A. 2003. Seismic risk assessment: with an application to the South African Insurance Industry, South ...
    ... Scholz, C. H. 1993. Chaotic behavior and mining- induced seismicity, In: Young, R.P. (ed.) “Rockbursts and Seismicity in Mines” Balkema, Rotterdam, 233-237. 125.Morrow, C.A., Moore, D.E. and Lockner, D.A. 2000. The effect of mineral bond strength and adsorbed water on fault gouge frictional strength ...

  • Синтеза, структурне и магнетне особине Ca1-xGdxMnO3 нанопрахова

    Milena Rosić (2014-12-05)
    У оквиру ове докторске тезе, испитиване су оптималне методе за добијањенанопраха – калцијум манганског оксида допираног јонима гадолинијума. Циљистраживања је испитивање одговарајућих прекурсора који су подесни да седобију чисти нано прахови манганита са перовскитском структуром, као имонофазни чврсти раствори са перовскитском структуром. Као подесан методкоришћена је модификована глицин нитратна метода, а од прекурсора нитрати иацетати одговарајућих метала. Модификација глицин нитратне методе се односина делимичну замену нитрата ацетатима, чиме је ублажена бурност реакције.Испитан је различити однос прекурсора, који дају наночестичне ...
    Наноструктурни материјали, Оксиди, Термална анализа,Рендгенструктурна анализа, Магнетна мерења.
    ... А. (2009): Synthesis and crystal structure of Ca(1-x)GdxMnO3, VIII Student's Meeteing, Processing and Application of Ceramics, December 2-5, Novi Sad, Serbia, Book of Abstracts, p.46. http://www.sciencedirect.com/science/journal/02728842 http://www.sciencedirect.com/science/journal/02728842 Прилог ...
    ... (2004): Electronic and ionic transport properties and other physical aspects of perovskites. Rep. Prog. Phys. 67, 1915-1993. Gotoh, K., Jodrey, W. S., Tory, E. M. (1978): Variation in the Local Packing Density Near the Wall of a Randomly Packed Bed of Equal Spheres, Powder Technology, 20, 257-260 ...
    ... from first principles. Current Opinion in Solid State and Materials Science Vol. 16, No. 5, 227–242 Bocher L., Aguirre M. H., Robert R., Logvinovich D., Bakardjieva S., Hejtmanek J., Weidenkaff A. (2009): High-temperature stability, structure and thermoelectric properties of CaMn1-xNbxO3 phases, ...

  • Critical disorder and critical magnetic field of the nonequilibrium athermal random-field Ising model in thin systems

    Svetislav Mijatović, Dragutin Jovković, Sanja Janićević, Đorđe Spasojević (2019)
    Изингов модел, критично понашање, танки системи

  • Concepts for Improving Machine Learning Based Landslide Assessment

    Miloš Marjanović, Mileva Samardžić Petrović, Biljana Abolmasov, Uroš Đurić (2019)
    Katastar klizišta, Podložnost, Hazard, Mašinsko učenje, Uzorkovanje, Validacija

  • 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

  • INVENTS: A Hybrid Mine Ventilation Planning and Design System

    Lilić Nikola, Stanković Ranka, Obradović Ivan (2013)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...
    hybrid systems, mine ventilation, expert systems
    ... fully exploits the GUI (graphical user interface) technology available for MS Windows applications. It enables a straightforward and easy manipulation of input data and control over parts of the problem-solving process. It also offers suggestions and recommendations to the user for the improvement of ...
    ... Analysis“, Mining Technology, Vol. 79, No 915, pp. 295-302, 1997. [8] Oral,M.K. and Durucan,S., (1993), "An Integrated Environment Simulation System for Mine Ventilation Management", XXIII International Symposium APCOM, Montreal, 327-334, Vol.II. [9] Ramani,R.V., Prasad,K.V.K. and Swaminathan,M., ...
    ... estimation ventilation simulation Design CFD Estimates estimation of gas and dust emission and temperature conditions flow process modelling using CFD Data acquis ition ventilation and psychrometric parameters ventilation and psychrometric parameters Fig. 3. Architecture of the hybrid system INVENTS ...

  • Flyrock induced by blasting in surface mining

    Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac (2022)
    Miniranje predstavlja i dalje najefikasniji i najjeftiniji način eksploatacije velikih količina čvrstih mineralnih sirovina na površinskim kopovima. Energija eksplozije se koristi za fragmentaciju čvrste stenske mase do zahtevane granulacije. Pored pozitivnih efekata miniranja, postoje i određeni neželjeni efekti svakog procesa miniranja koji se mogu javiti, a to su: potresi tla, razletanje komada stene, vazdušni udari, otrovni i zagušljivi gasovi i prašina. Razletanje komada stene je nekontrolisano izbacivanje fragmenata odminirane stenske mase i predstavlja jedan od glavnih izvora materijalne štete ...
    razletanje, bušenje, miniranje, površinska eksploatacija, bezbednost, nesreća

  • INVENTS: a hybrid system for subsurface ventilation analysis

    Nikola Lilić, Ranka Stanković, Ivan Obradović (2000)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...
    ... fully exploits the GUI (graphical user interface) technology available for MS Windows applications. It enables a straightforward and easy manipulation of input data and control over parts of the problem-solving process. It also offers suggestions and recommendations to the user for the improvement of ...
    ... Analysis“, Mining Technology, Vol. 79, No 915, pp. 295-302, 1997. [8] Oral,M.K. and Durucan,S., (1993), "An Integrated Environment Simulation System for Mine Ventilation Management", XXIII International Symposium APCOM, Montreal, 327-334, Vol.II. [9] Ramani,R.V., Prasad,K.V.K. and Swaminathan,M., ...
    ... estimation ventilation simulation Design CFD Estimates estimation of gas and dust emission and temperature conditions flow process modelling using CFD Data acquis ition ventilation and psychrometric parameters ventilation and psychrometric parameters Fig. 3. Architecture of the hybrid system INVENTS ...

  • 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).
    ... consideration of all relevant parameters and factors (geology of ore deposit, production process technology, capacity of mining and processing, costs, metal prices, recovery, etc.) for maximum profit of mining project. By applying various methods and optimization algorithms, which are used today ...
    ... Scheduling, School of Mathematics and Statistic, Curtin University of Technology, Perth, Australia, pp. 895-900. Cairns, R., Van Quygen, N., 1998, Optimal Exporation and Exploitation of Heterogeneous Mineral Deposits, Jounral of Environmental Economics and Management, pp. 164-189. Cairns ...
    ... the ore is one of the basic steps in planning and design of the open pit and is aimed to achieve maximum net present value (NPV). For this reason, the optimization of cut off grade is even today the subject of many researches in the mining science, with the aim of solving the practical problems ...

  • Strain partitioning in a large intracontinental strike-slip system accommodating backarc-convex orocline formation: The Circum-Moesian Fault System of the Carpatho-Balkanides

    Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga (2022)
    oroklini, raspodela deformacija, transkurentna kretanja, Karpato-balkanidi, Cirkum-mezijski rasedni sistem
    ... Tectonics and exhumation of Romanian Carpathians: inferences from kinematic and thermochronological studies. In: Rădoane, M., Vespremeanu-Stroe, A. (Eds.), Landform Dynamics and Evolution in Romania, Springer Geography. Springer, pp. 15–56. Matenco, L., Radivojević, D., 2012. On the formation and evolution ...
    ... Global and Planetary Change 208 (2022) 103714 5 Middle Jurassic transgressive clastics and carbonates, Upper Jurassic – Lower Cretaceous deep water to reef limestones and dolomites (Fig. 3, e. g., Antonijević et al., 1970; Grădinaru et ...
    ... (Figs. 2 and 3). The Danubian metamorphic basement is overlain by continental to shallow- water lacustrine Permian clastics, lower Triassic clastics and Middle to Upper Triassic carbonates, a Lower to Middle Jurassic clastic succession, Middle Jurassic to late Early Cretaceous carbonates and locally ...

  • Application of Expansive Mortars for the Formation of Artificial Screens During Blasting in Urban Areas

    Milanka Negovanović, Lazar Kričak, Stefan Milanović, Nikola Simić, Jelena Majstorović (2024)
    During construction of buildings in urban areas, sometimes there is a need to blast solid rock mass in the immediate vicinity of the surrounding buildings. In that case, the aim is not only to increase the efficiency of blasting, but also to reduce harmful effects of ground vibration induced by blasting. At the same time, it is very important to protect the buildings located in the safe zone from the blast site as well as remaining rock mass around ...
    expansive mortar, artificial screens, pressure, rock breaking, building foundation

  • Дефинисање археолошких објеката на локалитету Кремените њиве применом Ојлерове 3Д деконволуције на магнетометријске податке

    Весна Цветков, Илија Васиљевић, Бранислав Сретеновић, Весна Дамњановић (2018)
    ... cal and geophysical research at this site.    ACKNOWLEDGMENT    This study was supported by the Serbian Ministry of Education, Science and Technological De‐ velopment, (project No. 176016).    LITERATURA / REFERENCES    Bastani, M., Kero, L., 2004. Test of the analytical signal technique and Eule ...
    ... ssing  and  interpretation of  results, which  led  to a new discipline, known as Archaeological Geophysics. The  greatest advantage of Archaeological Geophysics  is that  it  is non‐destructive, and with the  increase  in  speed and measurement resolution, the costs of the investigation and excavat ...
    ... g one sensor, and the other, when the mag‐ netic field gradient is measured and is performed by moving the sensor pair. More precisely, both me‐ thods require the use of two sensors. If one sensor moves over the investigated area, the second sensor  must  be  at  the  base  point  and  it measures  the  ...

  • 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 ...
    ... 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 ...
    ... flattened, with a very concave anterior margin and medial notch on the posterior margin; the neural crest is low and developed only in the middle part of the neural arches. The vertebra from Mirosava was smaller. The length of the centrum does not exceed 2mm and it is slightly curved on the ventral side ...

  • Hidrodinamička analiza procesa starenja bunara sa horzontalnim drenovima na beogradskom izvorištu podzemnih voda

    Đorđije M. Božović (2023)
    Predmet istraživanja doktorske disertacije su bunari sa horizontalnim drenovima beogradskog izvorišta podzemnih voda, drugog najvećeg izvorišta ovog tipa na svetu, čiji je režim rada opterećen procesima intenzivnog starenja prisutnog od samog početka formiranja izvorišta, početkom 1950‒ih godina. Istraživanja sprovedena u okviru izrade disertacije su imala za cilj definisanje nove metodologije izučavanja procesa mehaničkog i biohemijskog kolmiranja drenova izradom detaljnih 3D numeričkih hidrodinamičkih modela, upotrebom postojećih, dostupnih i široko rasprostranjenih računarskih programa. Istraživanja su realizovana simulacijom ostvarenog režima podzemnih voda ...
    modeliranje podzemnih voda, hidrauličke karakteristike drenova, koeficijent propusnosti drenova, prifilterska zona drena, hidraulički otpori na drenovima, kolmiranje drenova, ulazne brzine podzemnih voda, MODFLOW, CLN Package
    ... Improving Source–Water Quality, Water Science and Technology Library, Volume 43. Springer, Dordrecht, 29‒34. DOI: 10.1007/0-306-48154-5_3 95 Jaroslav Černi Institute for the Development of Water Resources, R&D Center for Bioengineering, Kragujevac, 2004. Program for pre- and postprocessing of models ...
    ... flow model for Pali Area, India. African Journal of Environmental Science and Technology, 5 (12), 1085‒1092 DOI: 10.5897/AJEST11.220 195 Sophocleous, M., 2002. Interactions between groundwater and surface water: the state of the science. Hydrogeology Journal, 10, 52–67. DOI: 10.1007/s10040-001-0170-8 ...
    ... in alluvial groundwater. Water Resources and Manage., 1 (2), 27–43. 47 Dimkić, M., Pušić, M., Vidović, D., Petković, A., Boreli–Zdravković, Dj., 2011c. Several natural indicators of radial well ageing at the Belgrade Groundwater Source, part 1. Water Science & Technology. 63 (11), 2560-2566. DOI: ...

  • Održiva eksploatacija izvorišta mineralnih voda na primeru Vrnjačke banje

    Vladimir Živanović, Veselin Dragišić, Sava Magazinović, Jakov Andrijašević, Nebojša Atanacković (2022)
    Jedna od najznačajnijih i najposećenijih banja u Srbiji je Vrnjačka Banja koja je poznata po bogatstvu i dugoj istoriji korišćenja mineralnih voda. Obimna hidrogeološka istraživanja izvedena proteklih nekoliko decenija ukazala su na ograničenost rezervi mineralnih voda u uslovima dosta složene hidrogeološke građe područja pojavljivanja. Poslednjih godina eksploatacija ovog dragocenog resursa zadobija novu dimenziju, naročito nakon privatizacije pojedinih hotelskih kompleksa kada se povećavaju potrebe za mineralnim vodama i od kada počinje izrada novih vodozahvata što dovodi u pitanje održivu eksploataciju ...
    mineralne vode, izvorišta mineralnih voda, održivo korišćenje mineralnih voda, monitoring mineralnih voda, Vrnjačka Banja

  • Coal homogenization stockyard sizing “Tamnava – Zapad” case study

    Božo Kolonja, Dinko Knežević, Ranka Stanković, Dejan Stevanović, Detlef Trummer (2016)
    ... “Application of stochastic models for mine planning and coal quality control”, ISSN 0354-9836, Thermal science, Vol. 18., No. 4, 2014, pp.1361-1372, DOI: 10.2298/TSCI130201031S 9. Zhao, S., Lu, T.F., Koch, B. and Hurdsman, A., 2015. 3D stockpile modelling and quality calculation for continuous stockpile ...
    ... can be used to calculate, plan, control and predict the quality of ore being stacked and/or reclaimed with a great degree of accuracy. Robinson (2004) presents mathematical and computer models for the geometry of a stockpile, using both actual grade data and a variogram to describe the input variation ...
    ... chevron and window methods. Given than the windrow method is technologically more complex and requires the use of more complicated and more expensive machines, the chevron method is generally more desirable. There is no general rule defining which number of layer is considered small and which ...