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736 items
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Oдређивање броја камиона за транспорт руде на површинском копу Шупља стијена
Грујичић Стефан (2024)Транспорт на површинским коповима се одвија паралелнпо са осталим процесима екаплоатације. Како не би долазило до непредвиђениих трошкова, потребно је усагласити све системе производње. Димензионисање адекватног транспортног система обезбеђује максималну продуктивност механизације и профитабилну експлоатацију. Чињеница да трошкови транспорта заузимају знатан део укупних трошкова иде у прилог томе да је одређивање потребног броја камиона за превоз откопаног материјала од великог значаја. У овом раду извршен је прорачун броја камиона потребног за транспорт руде од откопних етажа до дробилице на ...... Lyalnd]] c L z H.Lovđ Zenopuwex lods We.LOHJ H H T ' O H E H O d I | | W O L J H O H H Y O S E H O d I J | WoO.LJHO H H T O S H E H O d I I TE id 23 4 [3 TE / dego.L{ es E x H m e y lodo BHEh920d1I q TGI <0l /'01 CbI Z I snp+o/utut o A l eqeleGu ...
... uou L H e l a n H Q e o » 1I UU0BJOd WSJEUIU)I 341 UOUHBJd I S J E U I O } M' U U H J G HSJEUIO)J u u u 8PSE D1Z:83 8r8'E pc8/u H H H I T O I A M.LeO xHHifed lodgq DG- 0I ?G ul oyeđdu EyHuged P2HHOHH S E Z T 919 O I u aopdu eHuw.i/ e L m u r ...
... rPrifa o n đ a n a vPrurragod) Pdenor.au a A L O I O N eHHgorre| - Eg e g e V A d - g e r e o [233273 Č W i . L O M J ) “utosi Z) S-SZEaH nS.LVWON + 31 00804 nSVMWONM E=[5] VHMHI/O.I 'S nHnoo2 fouou 4 p W a l u 2 n Q Dwaounhpupuy ofhhprAiwno nubunuAscao, ...Грујичић Стефан. Oдређивање броја камиона за транспорт руде на површинском копу Шупља стијена, 2024
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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 ...Milanka Negovanović, Lazar Kričak, Snežana Ignjatović, Stefan Milanović, Jovan Marković, Nikola Simić, Rade Šarac. "Flyrock induced by blasting in surface mining" in Rudarski glasnik, Beograd : Rudarski institut (2022). https://doi.org/10.25075/BM.2022.05
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Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series
Luka Crnogorac, Rade Tokalić, Zoran Gligorić, Aleksandar Milutinović, Suzana Lutovac, Aleksandar Ganić (2021)Underground mining engineers and planners in our country are faced with extremely difficult working conditions and a continuous shortage of money. Production disruptions are frequent and can sometimes last more than a week. During this time, gate road support is additionally exposed to rock stress and the result is its progressive deformation and the loss of functionality of gate roads. In such an environment, it is necessary to develop a low-cost methodology to maintain a gate road support system. ...deformacije podgrade, lasersko skeniranje, višekanalna singularna spektralna analiza, prognoza, klasterisanje fuzzy vremenskih serija... =(high), and A5 =(very high). The length of interval can be calculated by the equation: L = uR − lR n + 1 , (19) Each interval is obtained as: ∆v1 = [lR, lR + L], ∆v2 = [lR + L, lR + 2L], . . . ,∆vn = [lR + (n− 1)L, lR + nL]. Linguistic variable Ai (i = 1, 2, . . . , 5) can now be defined ac- cording ...
... Ay =(high), and As =(very high). The length of interval can be calculated by the equation: uR — Ir L= 1 Ra, (19) Each interval is obtained as: Av; = [IR,IR+ L], Avg = [IR+L,IR+2L],...,Av, = (IR+(n—1)L,IR+nL]. Linguistic variable A; (i = 1,2, ...,5) can now be defined ac- cording to defined intervals ...
... with vectors y!? = xy = (x\?,. XN.) into a multidimensional matrix mM, . . . T (x\”, . Xi hat) € R'i, where L;(1 <L; < Nj;) is the window length for each series with length N; and K; = N; — L;+1. The result of this step is the trajectory matrix Y‘) = Mm, Leey YQ | = (Ymn) yin: The trajectory matrix ...Luka Crnogorac, Rade Tokalić, Zoran Gligorić, Aleksandar Milutinović, Suzana Lutovac, Aleksandar Ganić. "Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series" in Energies, MDPI (2021). https://doi.org/https://doi.org/10.3390/en14123710
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The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)
... location of observation well PP-3, the water samples were of the Na–Cl–SO4 type, with extremely high ionic concentrations: Na: 2100 mg/L, Cl: 2310 mg/L and SO4: 1700 mg/L. When pressurized water was transported down the tunnel, the concentrations near PP-3 increased and altered the natural qualitative and ...
... Threshold Value Reference Number of Aggressive Waters/Sampling Points Sampling Points in Tunnel (m) pH ≤6.5 [9] 0 - Mg (mg/L) >300 [9] 0 - SO4 (mg/L) ≥200 [9] 2 1 + 970, 4 + 230 Cl (mg/L) >500 [10] 1 4 + 230 LSki >1.2 [11,12] 1 4 + 230 Water 2019, 11, 603 9 of 10 5. Conclusions The described monitoring ...
... mostly from the fractured aquifer (less than 5 L/s) and a much higher groundwater level (65 m at PP-1) relative to the water level of the reservoir, with a difference of 3.18 m when the tunnel was completely empty. The rate of inflow into Section II was up to 9 L/s and the groundwater level was generally ...Marina Čokorilo Ilić, Ana Mladenović, Marina Ćuk, Igor Jemcov. "The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)" in Water, MDPI AG (2019). https://doi.org/10.3390/w11030603
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Стање квалитета амбијенталног ваздуха на подручју града Панчева
Александар Маринковић (2024)Квалитет ваздуха је кључни фактор за здравље људи и очување животне средине. У овом завршном раду анализирано је стање амбијенталног ваздуха на територији града Панчева како би се сагледали извори загађења, ПЛН мониторинга и изазови у погледу квалитета ваздуха са којима се суочавају сви становници. Кроз примену савремених метода праћења, идентификовани су главни извори загађења и анализирана је дистрибуција загађујућих материја у урбаном окружењу.Праћењем концентрације загађивача као што су честице PM10, PM2.5, сумпор-диоксид (SO2), азот-диоксид (NO2) и други, ...... KapnmarTa y 3HMCKOM IHCPpHOJIy TOJUHHC yCJIOBJbaBajy XJIaJIHO, BETpOBHTO H IHIDČTeC)KHO CyBO BpeMe. VcMen jauapba jyro3amajnHOr BHCHHCKOT crpyjabba H3Ha/L BaJIKaHCKOT IIOJIyOCTpBa, IIOCCOHO y TOKy npojcha H jeceHH OCETAH je T3B. (DeHcKH e(beKaT KOJH yCJIOBJbaBa 3HauajaH IIOpacT TeMIIcpaType. 'V CBHM ...
... ba HeripHjarHor MHPpHc2a); • TauKacTH — HpOHNeCHH H3BOpH cMHCHJe KapaKTepHcTHuHHX HecOpraHcKHX 3jarabDyjyhmx MaTepHja (aMOHHJaK, CyMIIOp/JIHOKCH)L, a3OTHH OKCH/UH, yTJbeCHMOHOKCHII H CJL); • IpH3CMHH H3BOpH cMHCHjJC: OCH3HHCKE IIyMIIc, paaHe panuoHurnce 3a (pbapOabbe HTJL., H3 KOJHX CC, TaKOlje ...
... saarabyjyhe Marepuje y mojpyujy Jyx)KHe HH/UyCTpHJCKe 3OHec. IaBHH HIOJIyTaHTH KOJH CC JaBJbajy Cy CyMIIOpHH H a3OTHH OKcHJIH (SOx H NOx), yrxbepockKu/L, opraHcKa JenHHM56Mba, neOnehe uBpcTe H TeuHe uecrume [13]. 5.3 Jloxumurra Kao g3Bop 3arabema Baylyxa CraHoBHurmrrBo IlaHueBa je 30-35% oODyxBahcHO ...Александар Маринковић. Стање квалитета амбијенталног ваздуха на подручју града Панчева, 2024
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Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)
Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik (2023)The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies of crystallography and structural defects are scarce. For clarification, we investigated a series of natural arsenopyrite crystals from the polymetallic Pb-Zn-(±Cu,Ag,Au,Sb,Bi,W) Šumadija-Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among them, samples from the Drenjak gold mineralisation showed near-stoichiometric FeAsS composition and were further investigated by conventional and high-resolution transmission electron microscopy methods. TEM revealed abundant planar crystallographic defects and epitaxial surface oxide layer ...Inorganic Chemistry, Condensed Matter Physics,General Materials Science, General Chemical Engineering, crystal structure, FeAsS, oxidation, TEM, XRPD... Crystals 2023, 13, 278 4of11 “ e [] [ 5| A q Č— — - 5 a s| 3 H =- las t I 5 8 e S 8 o [ | o t 8|ua BLR š 8 – 8 8|3 3 š -L a l |j | | Š || || L w _A 5 10 15 2 25 3 3 4/”TR“R 4 5 7R 5 /7RO 60 6 7020[ Figure 2. Experimental XRPD pattern of characteristic arsenopyrite sample from ...
... the camera length (L) was calibrated by MAG*ICAL traceable TEM calibration standard to enhance the method”s precision. Quantitative analysis of electron diffraction was calculated according, to Bragg's law nA = 2d x sin0, using, an approximation for small angles 20 = ~A/d = R/L, with the final ...
... and New York; John Wiley and Sons Ltd.: Hoboken, NJ, USA, 1981; ISBN 0471551759. 18. Jelić,l.; Pačevski, A.; Kremenović, A.; Šoster, A.; Šestan, A.; Zavašnik, J. XRPD Dataset of Arsenopyrite from Šumadija-l(opaonik Ore District. Mendeley online data repository. Mendeley Data 2023. [CrossRef] 19 ...Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik. "Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)" in Crystals, MDPI AG (2023). https://doi.org/10.3390/cryst13020278
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Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria
The choice of adequate mining machines is one of the most complex problems in the underground exploitation of mineral raw materials. The weight of such a decision is reflected in the high prices of these machines and the occurrence of even greater costs during their use if their choice was wrongly conceived. There are numerous examples from practice in which such decisions were made solely on the basis of comparing the prices of machines, without considering any of the ...utovarno-transportna mehanizacija, izbor, TOPSIS, entropija, standardna devijacija, težina kriterijumaVladimir Krivošić, Luka Crnogorac, Rade Tokalić. "Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria" in Underground mining engineering, University of Belgrade - Faculty of Mining and Geology (2024)
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Хидрогеолошке карактеристике изворишта подземних вода “Зеленица” и “Горње поље” за водоснабдевање Лознице
Матија Стојановић (2024)Циљ овог истраживања је потреба за дефинисањем режима и категоризације резерви подземних вода где су изведени радови у раздобљу од јуна 2013. до јуна 2014. на истражно-експлоатационим бунарима изворишта "Зеленица" и "Горње поље" у Лозници. Истражно-експлоатациони бунари на наведеним извориштима каптирају збијени тип издани са слободним нивоом у оквиру квартарних шљункова и пескова, што указује на стабилност и поузданост извора. Према режимским осматрањима, утврђено је да се подземне воде могу неометано експлоатисати из бунара изворишта "Зеленица" у количини од ...извориште, збијени тип издани, истражно- експлоатисани бунари, квартарни седименти, резерве подземних вода... Ce MO)Ke BHJIeTe Ha JHJarpaMy (camKka 6.1) a y raOemn (6.9). Padavine({mm) 350.00 300.00 250.00 200.00 150.00 100.00 50.00 l l l .00 l ·l l O I „ š & a Cmaka 6.1 - IlanaBHe 3a BpeMe HcTpaxKHBaMba Ha nojpyujy JIosHumce JyH 2013. - jyH 2014. (ripeMa nonarnMa PXM3 – Jlosguna) ...
... 400.0 200.0 _ ~ E E < -i r ·% 300.0 150.0 '= F 5 s o = đ o o ii [.-] C 200.0 100.0 100.0 I l l 50.0 0.0 T T T T T T T T T T T 0.0 || ||| |||| IV V VI VII VIII IX X XI XII Meceun l Cpe/bbe MeceuHM npoTMuaj —— Cpoe/bbe MeceuHM BoAOcTaj CimKa 2.5 - XHcTorpaM IipoceuHe MeCcCuHe BPpeJIHOCTH ...
... H3HocH 342,7 I/s, om uera Je KomMuHHa oJ 207,2 l/s cBpcTaHa y "B" kareropuHjy pe3epBH, a KonmHuuHa oJ 135,5 l/s y "IH" Kareropujy. VikyrnHa KoOJIHUHHa HOJUEMHHX BOJIa KOJa Ce MO:KeE IIpHeTH ca H3BopHmrra "Topie HOJbe", y JlosaHMnuM H3HocH 153,2 l/s, om ucra je KomMuMHa oJ 107,1 1/s cBpcTaHa y ...Матија Стојановић. Хидрогеолошке карактеристике изворишта подземних вода “Зеленица” и “Горње поље” за водоснабдевање Лознице, 2024
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Introduction to special section: Characterization of hydrocarbon and geothermal resource potential and carbon sequestration opportunities of the Pannonian Basin
Balázs Németh, Gábor Tari, Gábor Bada, Dejan Radivojević, Bruno Tomljenovic, Csaba Krézsek. "Introduction to special section: Characterization of hydrocarbon and geothermal resource potential and carbon sequestration opportunities of the Pannonian Basin" in Interpretation, AAPG SEG (2018). https://doi.org/10.1190/INT-2017-1207-SPSEINTRO.1
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Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)
Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeLjiljana Vasić, Saša Milanović, Anita Puskás-Preszner, Laszlo Palcsu. "Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)" in Environmental Earth Sciences, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s12665-020-08910-x
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The influence of structural modification of Pd(II) pincer-type complexes on the kinetics of substitution reactions
Snežana Jovanović Stević, Snežana Radisavljević, Aleksandar Mijatović, Biljana Petrović, Ana Kesić (2023)This mini-review summarizes the kinetic data obtained for the substitution reactions of some palladium(II) complexes containing bis-pyrazolylpyridine derivatives as pincer-type ligands with biologically significant nitrogen- and sulfur-donor biomolecules as nucleophiles. Three structurally different palladium(II) complexes were selected: [Pd(L1)Cl]+ (Pd1), [Pd(L2)Cl]+ (Pd2) and [Pd(L3)Cl]+ (Pd3) (where L1 = bis(2-(1H-pyrazol-1-yl)ethyl)amine, L2 = 2,6-bis(5-(tert-butyl)-1H-pyrazol-3-yl)pyridine, and L3 = 2,6-bis(5-(tert-butyl)-1-methyl-1H-pyrazol-3-yl)pyridine, while for the entering nucleophiles were used thiourea (Tu), L-methionine (L-met), and guanosine-5’-monophosphate (5’-GMP). Kinetic measurements were carried out for all systems as pseudo-first ...Snežana Jovanović Stević, Snežana Radisavljević, Aleksandar Mijatović, Biljana Petrović, Ana Kesić. "The influence of structural modification of Pd(II) pincer-type complexes on the kinetics of substitution reactions" in 2nd International Conference on Chemo and BioInformatics ICCBIKG 2023, 28-29 September 2023, Institute for Information Technologies, University of Kragujevac, Serbia, Kragujevac : Institute for Information Technologies, University of Kragujevac (2023)
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BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties
Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković (2023)To investigate the influence of spinel structure and sintering temperature on the functional properties of BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface from acetylacetonate precursors. As-prepared powders were additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the detailed examination of phase composition and morphology. The magnetic, dielectric, and ...ferroelectric, dielectric properties, magnetic properties, titanate/ferrite composites, phase composition... ć 72 and Ljubica Andjelković +G Q check for updates Citation: Šuljagić, M.; Petronijević, L; Mirković, M.M.; Kremenović, A.; Džunuzović, A.; Pavlović, V.B.; Kalezić-Glišović, A.; Andjelković, L. BaTiO5/Ni,„Zn; „FeaOu (x = 0, 0.5, 1) 'Composites Synthesized by Thermal Decomposition: Magnetic ...
... 0x10' NM 3.5x10% 3.0x10* Op = 1/qwp + 2.5x10 WO:SOLURNI 2.0x10“ “ 1.5x10% . w 1.0x10% 5.0x10? , | 2.0x10%, 4.0x10% 6.0x10 8.0x10 L . L 1 i " I | LO WWĆE / x Z [Q m]\\ Figure 7. Nuqist plot for BaTiOs/NiFe>Ou sintered at 1150 "C. Variations of relative dielectric constant ...
... organic precursors. J. Therm. Anal. Calorim. 2012, 108, 1033—1039. [CrossRef] eremić, D.; Andjelković, L.; Milenković, M.R.; Šuljagić, M.; Ristović, M.Š.; Ostojić, S.; Nikolić, A.S.; Vulić, P.; Brčeski, L.; Pavlović, V. One-pot combustion synthesis of nickel oxide and hematite: From simple coordination ...Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković. "BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties" in Inorganics, MDPI AG (2023). https://doi.org/10.3390/inorganics11020051
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Contribution to the geotechnical classification of municipal waste landfills in Serbia
Management, Monitoring, Policy and Law, Nature and Landscape Conservation, Geochemistry and Petrology, Waste Management and Disposal,Geotechnical Engineering and Engineering Geology,Water Science and Technology,Environmental Chemistry,Environmental EngineeringDragoslav Rakić, Irena Basarić, Laslo Čaki, Slobodan Ćorić. "Contribution to the geotechnical classification of municipal waste landfills in Serbia" in Environmental Geotechnics, Thomas Telford Ltd. (2018). https://doi.org/10.1680/jenge.18.00028
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Quantitative landslide risk assessment in the city of Tuzla
In the climate-changing conditions, geological environment interacts more dramatically with the urban fabric than before. The urbanization is expansive and more aggressive than before, but so are the weather extremes and long-term climate trends. In effect, many processes which can be triggered by either side, nature or engineering, are becoming more pervasive than before, and such is the case with landslides. Dealing and managing landslides requires few crucial steps, starting from collecting data on landslide location and typology – ...... assessment in the city of Tuzla Miloš Marjanović, Biljana Abolmasov, Cvjetko Sandić, Miralem Mulać, Petar Begović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Quantitative landslide risk assessment in the city of Tuzla | Miloš Marjanović, Biljana Abolmasov ...
... INTERNATIONAL SYMPOSIUM ON LANDSLIDES. CARTAGENA, COLOMBIA- JUNE 15th-19th-2020 Quantitative landslide risk assessment in the city of Tuzla Miloš Marjanović1, Biljana Abolmasov1, Cvjetko Sandić2, Miralem Mulać3, Petar Begović4 1) University of Belgrade Faculty of Mining and Geology, Đušina ...
... metropolitan area: Pixel resolution effects and a cross-scaling concept”. Engineering Geology 256, 23-38. Fell, R., Corominas, J., Bonnard, C., Cascini, L., Leroi, E., Savage W. Z. (2008) “Guidelines for landslide susceptibility, hazard and risk zoning for land use planning”. Engineering Geology 102(3-4): ...Miloš Marjanović, Biljana Abolmasov, Cvjetko Sandić, Miralem Mulać, Petar Begović. "Quantitative landslide risk assessment in the city of Tuzla" in SCG-Xiii International Symposium on Landslides. Cartagena, Colombia- February 22-26, 2021, International Society for Soil Mechanics and Geotechnical Engineering (2021)
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Age of the Jurassic hemipelagic sediments from the Ljubiš area (Zlatibor Mt., SW Serbia)
Nikita Bragin, Nevenka Đerić (2020)... s10347-011-0274-0 O’DOGHERTY, L., BILL, M., GORIČAN, Š., DUMITRICA, P. & MASSON, H. (2006): Bathonian radiolarians from an ophiolitic mélange of the Alpine Tethys (Gets Nappe, Swiss-French Alps).– Micropaleontology, 51, 425–485. doi: 10.2113/ gsmicropal.51.6.425 O’DOGHERTY, L., GORIČAN, Š. & GAWLICK, H ...
... Praewil- liriedellum sp. Radiolarites from Unit 6 are characterized by better preser vation of the radiolarians (Table 1, Fig. 6, Plate 1, Figs. D, L-P, Plate 2). Samples 15-10-10 and 15-10-11 were taken from the sixth unit (made up of dark greenish-grey thin-bedded radiolarites, with interlayers ...
... des Hellénides: le Gav rovo, le Pinde et la zone ophiolitique subpélagonienne.– Ann. Soc. Géol. Nord, 90, 277–306. BAUMGARTNER, P.O., O’DOGHERTY, L., GORIČAN, Š., DUMITRICA-JUD, R., DUMITRICA, P., PILLEVUIT, A., URQUHART, E., MATSUOKA, A., DANELIAN, T., BARTOLINI, A., CARTER, E.S., DE WEVER, P. ...Nikita Bragin, Nevenka Đerić. "Age of the Jurassic hemipelagic sediments from the Ljubiš area (Zlatibor Mt., SW Serbia)" in Geologia Croatica, Croatian Geological Survey (2020). https://doi.org/10.4154/gc.2020.11
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Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)
A groundwater flow model was developed to simulate groundwater extraction from the public water supply source of the City of Kikinda. The hydrodynamic model includes the municipal groundwater source of Kikinda (Šumice and the Jezero Well), but also an extended area where there are groundwater sources that provide water supply to three factories: (MSK, TM and LŽT - Kikinda). Hydrodynamic modeling, based on the numerical method of finite differences will show the groundwater balance of the sources in the ...... 2009), or, in other words, the summary groundwater balance of municipal (117.66 l/s) and industrial (139.00 l/s) sources of water supply. Table 3. Groundwater balance Model inflow [l/s] Model outflow (wells) [l/s] North 27.57 256.66 East 73.85 South 90.38 West 64.72 Sum 256.52 256 ...
... production wells with a total capacity of 54 l/s; the TM groundwater source, using a single production well with a discharge rate of 35 l/s; and the LŽT - Kikinda groundwater source, which operated two production wells with a total capacity of 50 l/s. Effective infiltration. In the overall ...
... shows the distribution of piezometric levels in the tapped water-bearing horizon for the maximum rate of groundwater extraction at Šumice of 117.66 l/s (August 20, 2009). Figure 11 shows the groundwater levels registered at the observation wells and those obtained by calculations in the model c ...Dušan Polomčić, Dragoljub Bajić, Jelena Zarić. "Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)" in Journal of Sustainable Development of Energy, Water and Environment Systems (2015). https://doi.org/10.13044/j.sdewes.2015.03.0017
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Geotehnički uslovi izgradnje nadvožnjaka "Balajnac" na autoputu E-80 deonica: Niš - Merošina
Dragoslav Rakić, Nikola Božović (2024)U sklopu prve deonice autoputa E-80 Niš – Merošina, izgrađen je nadvožnjak u zoni sela Balajnac koji je oslonjen na tri stubna mesta na međusobnom rastojanju od oko 26 m. Svaki stub je fundiran na šipovima i to sa predloženim rasporedom od 2 šipa u grupi na međusobnom rastojanju od 3.6 m. U radu su na osnovu izvršenih geotehničkih istraživanja terena, analizirani rezultati nosivosti vertikalno opterećenog šipa prečnika 1.2 m i dužine šipa od L = 23 m. Analiza ...Dragoslav Rakić, Nikola Božović. "Geotehnički uslovi izgradnje nadvožnjaka "Balajnac" na autoputu E-80 deonica: Niš - Merošina" in Peti Srpski kongres o putevima, Beograd, 30-31.05.2024., Beograd : Srpsko društvo za puteve "Via Vita" (2024)
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Analiza hidrauličke veze između reke Save i podzemnih voda na izvorištu za vodosnabdevanje Obrenovca
Na izvorištu „Vić bare“ formiranom u aluvijonu Save za vodosnabdevanje Obrenovca u poslednje dve decenije izvedeno je više detaljnih hidrogeoloških istraživanja u cilju utvrđivanja rezervi podzemnih voda i izdvajanja zona sanintarne zaštite. Monitoring podzemnih voda u celoj zoni izvorišta, za potrebe izrade hidrodinamičkog modela, omogućio je i hidrauličku analizu odnosa površinskih voda reke Save i podzemnih voda na izvorištu sa kojeg se trenutno zahvata do 310 l/s vode. U radu su prikazani rezultati korelacione analize, odnosno ispitivanja na ...Dragoljub Bajić, Bojan Hajdin, Dušan Polomčić, Vesna Ristić Vakanjac. "Analiza hidrauličke veze između reke Save i podzemnih voda na izvorištu za vodosnabdevanje Obrenovca" in XVI Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem, Zlatibor, 28.09.-02.10.2022., Beograd : Rudarsko-geološki fakultet (2022)
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Sorpcija herbicida na neorganski i organski modifikovanom prirodnom montmorionitu iz Bogovine
Lazar M. Kaluđerović (2018-01-17)fikasnost prilikom sorpcije S-metolahlora i klomazona od strane neorganskih iorganski modifikovanih montmorionita sa lokaliteta Bogovina odreĎena je metodombach adsorpcije. Uzorci montmorionita su tretirani prvo rastvorom NaCl a zatim irazličitim koncentracijama organskih kompleksa. Adsorpcione izoterme su dobijenetretiranjem uzoraka različitim koncentracijama herbicida. Detaljna mineraloškakarakterizacija uzoraka uraĎena je metodom rendgenske difrakcije. Rezultati interakcijemontmorionita sa organskim kompleksima i herbicidima dobijeni su primenomrendgenskih, optičkih, termičkih i spektroskopskih metoda.Na osnovu rezultata rendgenskih ispitivanja uzoraka, utvrĎeno je prisustvoorganskih kompleksa i herbicida u meĎuslojnom prostoru montmorionita.Montmorioniti modifikovani ...adsorpcija, montmorionit, heksadeciltrimetilamonijum bromid,feniltrimetilamonijum hlorid, S-metolahlor, klomazon... Minerals. 53: 287–293. He H., Frost R. L., Bostrom T., Yuan P., Duong L., Yang D., Xi Y., Kloprogge J. T 2006. Changes in the morphology of organoclays with HDTMA+ surfactant loading. Applied Clay Science. 31: 262–271. He H., Zhou Q., Frost R. L., Wood B. J., Duong L. V., Kloprogge J. T. 2007. A X-ray ...
... Polubesova T., Rytwo G., Nir S., Serban C., Margulies L. 1997. Adsorption of benzyltrimethylammonium and benzyltriethylammonium on montmorillonite: Experimental studies and model calculations. Clay and Clay Minerals. 45(6): 834– 841. Ramos L., Sojo L. E., Brinkman U. A. Th. 2000. Study of the fast ...
... regulative vezane za maksimalnu količinu zaostalih pesticida u vodi. Kod vode za piće, koncentracija ne sme da prelazi nivo od 0.1 μg/L za pojedinačnu komponentu i 0.5 μg/L za ukupnu količinu pesticida (Konda, 2002). To znači da analitička metoda za odreĎivanje ostatka pesticida u vodi mora da ima 1000 ...Lazar M. Kaluđerović. "Sorpcija herbicida na neorganski i organski modifikovanom prirodnom montmorionitu iz Bogovine" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-01-17)
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Proračun recirkulacionih pumpi u postrojenju za odsumporavanje dimnih gasova ,,TENT B"
Tomislav Trpković (2024)Predmet ovog rada baziraće se na proračunu i usvajanju mašinskih instalacija potrebnih za nesmetano funkcionisanje sistema dve međusobno povezane celine Absorber - Pumpna stanica, preko FRP ( Fiberglass Reinforced Plastic) cevovoda kojim se odvija transport suspenzije krečnjaka neophodnog u samom procesu odsumporavanja dimnih gasova. Pored tehničkog opisa same tehnologije koja uključuje tri objekta: Absorber, Pumpna Stanica i cevovod, glavni deo rada odnosiće se na proračun i usvajanje mašinskih instalacija koji uključuju recirkulacione radijalne centrifugalne pumpe i cevovode kojima ...postrojenje za odsumporavanje dimnih gasova, termoelektrana, pumpna stanica, FRP cevovod, Absorber, transport suspenzije gipsa, prirubnica, ventil, potisni cevovod, usisni cevovod... m*/h 802 Temperatura na ulazu ODG oC 2-31 Pritisak na ulazu ODG barg 0,6 — 0,7 Sastav pH / 7,9 COD mg/l 3,6 Suspendovane čestice čvrste materije mg/l 12 CI mg/l 16,5 Mpg2+ mg/l 17 29 Parametri instrumentalnog i servishog vazduha Parametri instrumentalnog i servisnog vazduha prikazani ...
... fakultet, 2019 . „Mašinski elementi“ Miroslav Ognjanović, Univerzitet u Beogradu, Mašinski fakultet, 2016 . „Priručnik iz mašinskih elemenata“ Miloš Tanasıjević, Univerzitet u Beogradu, Rudarsko geološki fakultet, 2017 72 IZJAVA O AUTORSTVU ZAVRŠNOG RADA Ime i Prezime studenta_ Tomislav ...
... raspona između oslonaca Proračun maksimalnog raspona između oslonaca urađen je prema sledećoj formuli proizvođača cevovoda: 4 /384 * EI L= |__— 5*q gde Je: L - maksimalni raspon između oslonaca, Eyaxay = 8000 MPa - zatezni modul elstičnosti u aksijalnom pravcu,I = 16.690.496.861 mm“ – moment ...Tomislav Trpković. Proračun recirkulacionih pumpi u postrojenju za odsumporavanje dimnih gasova ,,TENT B", 2024