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Упит dcterms_creator_txt:Marjan M. Hudej

992 items

  • Interaction of sodium dodecylsulfate (SDS) with homoionic montmorillonites: adsorption isotherms and metal-ion release

    M. Ilic, J. Gonzalez, A. Pohlmeier, H. D. Narres, M. J. Schwuger (1996)
    The interaction of dodecylsulfate anions (DS−) with homoionic Ca-, Mg-, Ni-, Cu-, Cd-, Pb- and Fe-montmorillonites were investigated. Mg- and Cd-montmorillonite do not adsorb DS−, and an anion exchange at the edges of the clay mineral does not take place. Three different adsorption processes are identified on the other montmorillonites: i) Fe-montmorillonite is covered with amorphous iron hydroxide, and DS−-anions are bound at positively charged sites. ii) On Ca- and Pb-montmorillonite DS− is precipitated as Me(DS)2. iii) On Ni- ...
    Натријум додецилсулфат, адсорпциона преципитација, монтморилонит

  • The application of ArcGIS for assessing the potential of solar energy in urban area: The case of Vranje

    Boban Pavlović, Milica Pešić-Georgiadis (2019)
    In order to determine the solar energy potential for a specified location, it is crucial to consider the latitude, altitude, slope, terrain morphology, atmospheric conditions, etc. Such a complex calculation and mapping of solar energy can be done using the ArcGIS geoprocessing tool, named Area Solar Radiation (ASR). By using the ASR tool, supported with the adequate input data, it is possible to calculate the maximum solar radiation energy (irradiation) for a defined area and for a specified time ...
    Obnovljivi izvori energije, potencijal solarne energije, GIS, mapiranje solarnog potencijala
    ... Conference on Energy and Climate Change, 9-11 October 2019, Athens - Greece Share in Total Primary Energy Production from Renewables m Biomass m Hydropower m Wind power m Biogas, Solar, Geothermal energy Figure 1: Total production of primary energy from RES in Serbia per energy source (Republic of ...
    ... solar radiation energy for a flat surface during winter ranges between 1.1 kWh / m in Northern Serbia and 1.7 kWh / m? in Southern Serbia, and in the summer between 5.4 kWh / m? in Northern Serbia and 6.9 kWh / m? in Southern Serbia (University of Belgrade, 2004). It should be noted that the data ...
    ... 29 kWh / m?in January and near 175 kWh / mžin July. By dividing the mean value of the monthly insolation with the number of days in months, the average daily solar radiation energy is calculated. The average daily solar radiation energy is 0.94 kWh / m? for January and 5.65 kWh / m?for July ...

  • Adaptive neuro-fuzzy prediction of operation of the bucket wheel drive based on wear of cutting elements

    Filip Miletić, Predrag D. Jovančić, Milos Milovančević, Dragan Ignjatović (2020)
    The capacity of the rotor excavator depends largely on the operation of the subsystem for digging. There is a great contribution to the correct and sharp teeth when the capacity is the highest. In the function of time, the teeth become clogged due to abrasive wear, or changes in their geometric shape. To analyze the bucket wheel drive in depend on wear of the cutting elements in this study adaptive neuro fuzzy inference system (ANFIS) approach was implemented. ANFIS ...
    Pogon rotornog točka, habanje, rezni elementi, ANFIS

  • Results of comprehensive monitoring activities on Umka landslide, Belgrade, Serbia

    Biljana Abolmasov, Uroš Đurić (2021)
    klizišta, monitoring
    ... (Ćorić et al. 2016; Abolmasov et al. 2012). This landslide is fan-shaped, with the length along the slope of 900 m, 1650 m wide in the toe, reaching maximum depth of sliding surface at 26 m, and average slope gradient of 9 . Previous geotechnical research has shown that Umka landslide can be described ...
    ... techniques. Results Displacement rates from GNSS indicate that object point Umka GNSS has moved 0.30 m towards the North and 0.50 m towards the West, while the vertical displacement was approximately -0.15 m for the 2014-2018 time span. Similar range of GNSS displacement rates were found in previously published ...
    ... confirm that the Umka is a slow to very slow moving landslide. REFERENCES Abolmasov B., Milenković S., Jelisavac B., Vujanić V., Pejić M. and Pejović M., 2012, Using GNSS sensors in real time monitoring of slow moving landslides-a case study. Proceedings of the 11th International and 2nd American ...

  • Differently shaped nanocrystalline (Fe, Y)3O4 and its adsorption efficiency toward inorganic arsenic species

    Biljana P Dojčinović, Boštjan Jančar, Lotfi Bessais, Aleksandar Kremenović, Nataša P Jović-Jovičić, Predrag T Banković, Dalibor M Stanković, Miloš Ognjanović, Bratislav V Antić (2019)
    Herein we report effects of partial substitution of Fe3+ by Y3+ in magnetite (Fe3O4) on morphology and inorganic arsenic species adsorption efficiency of the Fe3−xYxO4 nanoparticles formed. The series of Fe3−xYxO4 (x=0.00, 0.042 and 0.084, labeled as Y00, Y05 and Y10, respectively) was synthesized using co-precipitation followed by microwave-hydrothermal treatment (MW) at 200°C. With increase of yttrium content(xvalue), both the morphological inhomogeneity of the samples and the fraction of spinel nanorods as compared to spinel pseudospherical particles increased. By ...
    microstructure, microwave-hydrothermal synthesis, adsorption, magnetic nanoparticles, arsenic

  • Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)

    Nikoleta Aleksić, Aleksandar Kostić, Miloš Radonjić (2021)
    This paper presents the first data on the organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in the East Herzegovina region of the External Dinarides. Representative, organic-rich samples from outcropping sedimentary rocks of different ages in the area (Triassic to Neogene) were selected and analysed. The organic matter was studied by Rock-Eval pyrolysis and under the microscope in reflected non-polarized light and incident blue light. The results obtained show the presence of different types of organic ...
    nafta i gas, Rock-Eval, refleksija vitrinita, maceral, termička zrelost
    ... Mirković, M., Kalezić, M., Pajović, M., Rašković, S., Čepić, M. & Vujisić, P., 1974. Osnovna geološka karta SFRJ 1:100000. Tumač za list Gacko, K 34-26. Institut za geološka istraživanja, Sarajevo, Savezni geološki zavod, Beograd, 42 pp. [In Serbo-Croatian.] Mojićević, M. & Laušević, M., 1965. Osnovna ...
    ... Mirkovi¢, M., Kalezi¢, M., Pajovic, M., Raskovi¢, S., Cepic, M. & Vujisi¢, P., 1974. Osnovna geoloska karta SFRJ 1:100000. Tumaé za list Gacko, K 34-26. Institut za geoloska istrazivanja, Sarajevo, Savezni geoloski zavod, Beograd, 42 pp. [In Serbo-Croatian. ] Mojicevic, M. & Lausevic, M., 1965. Osnovna ...
    ... Todorići 3.08 1.81 25.46 0.90 827 397 15 K M. Gruda 0.90 0.17 6.58 0.40 731 424 16 K M. Gruda 0.45 0.33 2.81 0.31 624 423 17 K Bugovina 1.93 0.54 14.68 0.76 761 415 18 K Čepelica 0.93 0.28 5.64 0.33 606 423 19 E Kljen 3.37 0.02 1.26 3.44 37 433 20 M Gacko 51.03 2.41 48.97 34.00 96 411 Table 1 ...

  • Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites

    Marija Šuljagić, Aleksandar Kremenović, Ivan Petronijević, Adis Džunuzović, Miljana Mirković, Vladimir Pavlović, Ljubica Anđelković (2023)
    To investigate the effect of synthesis procedure and sintering temperature on the functional properties of perovskite/spinel ceramics, BaTiO3/CoFe2O4 composites were prepared by thermal decomposition, coprecipitation, and microemulsion method, and sintered at 1150°C and 1300°C. The phase composition and morphology of as-prepared powders as well as sintered ceramics were thoroughly examined by X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS). The dielectric and ferroelectric measurements were performed in detail. Generally, the ...
    Perovskite/spinel ceramics, Multiferroic, Sintering, Influence of synthesis method

  • Geochemical evaluation of dolostone deposits in Montenegro: Implications for potential industrial applications

    Darko Bozovic, Vladimir Simic, Dragan Radulovic, Slobodan Radusinovic, Vesna Matovic, Anja Terzic (2024)
    This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability, and low costs. These subsystems are usually part of the thermal power plant’s coal supply system and ensure stable fuel supply. The model integrates various independent partial ...
    примарне сировине, минералогија, физичко-механичка својства, технолошка својства, наука о материјалима

  • Karst aquifer impact on the formation of surface runoff: case study of the Resava River catchment, Serbia

    Marina Mitrašinović, Vesna Ristić Vakanjac, Veljko Marinović, Saša Milanović, Ljiljana Vasić, Dušan Polomčić (2022)
    The paper compares the flow regimes of the Resava River at the gauging stations of the Manasija Monastery (upper course) and the town of Svilajnac (lower course). The hydrological analysis encompasses a multiyear period of monitoring (1982–2020). The water budget and baseflow index are assessed for the catchment areas monitored by the Svilajnac station (683 km2) and the Manasija Monastery station (358k m2), considering the overall monitoring period and characteristic years. The results indicate that the specific runoff in ...
    hydrogeological characteristics, water regime, water balance, karst aquifer, Resava catchment area
    ... 2001 (Qav = 3.48 m?/s at Manasija Monastery and Qav = 4.35 m#/s at Svilajnac) and 2018 (Qav = 4.06 m?*/s at Manasija Monastery and Qav = 4.65 m?*/s at Svilajnac (Figs. 1a, 1b); • The ycar 1994 with a typical low discharge: Qav = 0.58 m*/s (at the Mansija Monastery) and 0.33 m?*/s (at Svilajnac) ...
    ... gauging station at the Manasija Monastery show that the upper catchment ofthe Rc- sava River conveys 3.31 m*/s or 104 million cubic Year Gauging station Wl Weaenow (10* m*) Wiawano „ (10* m*) Baseflow index 1994 Manasija Mon. 55.597 38.176 17.423 0.687 1994 Svilajnac 50.607 33.697 16.912 0.666 ...
    ... 52215/rev.bgs.2022.83.3.255 the village of Tresta in the east, an area between the southwestern part of Mt. Beljanica (1339 m) and the northwestern part of the Kučaj Mountains (1284 m). The Resava Gorge was formally desig- nated as a protected area in 1955, as part of the Up- per Resava Regional Nature ...

  • Тeхничка и биолошка рекултивација као технолошки процес рада на спољашњем одлагалишту површинског копа „Дрмно“ РБ Костолац

    Александар Милојковић (2024)
    У овом мастер раду приказани су општи и детаљни подаци о спољашњем одлагалишту површинског копа ,,Дрмно“ Костолачког угљеног басена и детаљна концепција коришћења равних и косих површина намењених за рекултивацију.Такође, приказан је и опис спољашњег одлагалишта са тачно утврђеним границама површина које ће бити предмет рекултивације. Као специјалистички део овог мастер рада приказано је извођачко техничко пројектно решење реализације техничке и биолошке рекултивације. Усвојеним решењем приказана је технологија формирања одлагалишних етажа, техника извођења радова применом технолошке усвојене механизације и ...
    Дрмно, површински коп, спољашње одлагалиште, техничка рекултивација, биолошка рекултивација, динамика радова, предмер и предрачун
    ... BeTpo3amrriTHO Gnonom M3BOljeba | HOpBMHHMH | HOBpIHHH | IOBpIHHH r HOBpHIHH | IIOBDpHIHH . Ogouomike e e e nojaca ez e Pegymrr. | PpeKyA. (m?) (m?) (m?) (m?) (m?) (ha) I_Oasa Pi npBa/rpeh | 233554,0 233554,0 23,35,54 a A Tpeha 38100,0 38100,0 3,81,00 As ripBa 27079,0 27079,0 2,70,79 A TipBa ...
    ... neoHuna he BMarTui nyOuaHy 0,35 m, nok he neoHuna 6 HMaTu nyOHHy 0,4 m. Eraxuu Kanaji EK-2D aMa yKyTHHy JU?KHHy OJUOKO 975 m H cacrojH ce H3 6 neoHuma. Tpanenacror je nonpeuHor ripeceka ca yrJ1oM OoOuHHX cTpaHa oJ 60% Eraxuu Kaunaji EK-3L ua yKyrnHy Jy)kaHy OJL oko 1158 m u cacrojuH ce H3 9 neoHuna ...
    ... Koce IIoceone TloBpumne YKynuHe YKynuHe noBpimuHe | nOBpHHHe | HOBpMHHHHe | HmOBpimuHe BeTpOjaITHTHOT HnoBpmmHe | HOBpIHIMHe no (baaaMa (m?) (m?) (m?) n(oljnžša (m*) (ha) IQĐAJ3A Pi 233554 233554 23,35,54 A 38100 38100 3,81,00 As 27079 27079 2,70,79 EO 6713 6713 0,67,13 Ž 305446 30,54,46 ...

  • Geotechnical conditions of “Debelo brdo” tunnel construction on the highway E-80: Nis-Merdare-Pristina (“Peace Highway”)

    Dragoslav Rakić, Irena Basarić Ikodinović, Radojica Lapčević, Dragan Lukić (2024)
    The construction of the highway E-80 has begun in Serbia, which will represent the traffic hub of the Western Balkans and will be part of the main regional transport network of Southeast Europe. Its total length through Serbia is 77 km, and one part of the route is designed through a typical plain terrain, while a larger part of the route passes through hilly terrain. The construction of the tunnel “Debelo brdo” is planned partly in an open cut ...
    „Debelo brdo“ tunnel, temporary slopes, open cut excavation, tunnel excavation, piles

  • Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia

    Nikita Bragin, Liubov Bragina, Nevenka Đerić, Nataša Gerzina-Spajić (2019)
    Paleontology, Stratigraphy, Economic Geology, Geochemistry and Petrology, Geology, Geophysics, Geotechnical Engineering and Engineering Geology
    ... KovAcs, S., SUDAR, M., BIELIK, M. & PER6, Cs. (Eds.). Variscan and Alpine terranes of the Circum-Pannonian Region, 87–156, Geological Institute, SAS, Bratislava. KovAcs, S.*, SUDAR, M., GRADINARU, E., GAWLICK, H.-J., KARAMATA, S., HAAS, J., PER6, Cs., GAETANI, M., MELLo, ]., PoLAK, M., ALJINOVIĆ ...
    ... and Zone Capnodoce Eptingiidae ? gen. et sp. indet. R crystallina of Eastern Russia .. Palaeosaturnalis sp. |-- J ” | m M | P | P | m P | = P | G O | P | G O | Q m | > (BRAciN, 2000). Praehexasaturnalis tenuispinosus (DONOFRIO & MOSTLER) Paronaella sp. Triassocrucella sp. cf. T. triassica ...
    ... triassica (KOZUR & MOSTLER) Final remarks Corum sp. Spinosicapsa spp. The Grivska Formation is Xiphothecaella longa (KOZUR & Mock) [< ] m | m | m | > | n represented, on the right side stones. Rocks are intensively folded, numerous faults are present (Fig. 2). The total thickness can be ...

  • Управљање отпадом – услови, циљеви и изазови на домаћем тржишту

    Дарко Драгићевић (2024)
    Тема овог завршног рада обухвата анализу система управљања отпадом на домаћем тржишту, са посебним освртом на постојеће изазове и могућности за унапређење. Управљање отпадом је кључна компонента заштите животне средине и одрживог развоја, док у Србији ова област пролази кроз процес трансформације у складу са захтевима Европске уније и међународним стандардима. Овај завршни рад је пружио боље разумевање сложености управљања отпадом у Србији и понудио практична решења која могу помоћи у остваривању одрживог развоја у овој области.
    Заштита животне средине, управљање отпадом, комунални отпад, рециклажа
    ... H He0ea0eJnaH TepeH 1.62%. 56 Ore)»kaH npwucrTyr m HeMa cMeTbwM 3a npuvcrTyn peuWiKnoMaTy m HenocTrojabse napkuMHra y HenocpenuHoj 6/1434HM m [yxBa m Jlokauuja je He6e36enHa 3a KOpMcHMKe peuMKnoMaTa m ynvua je ycka m {\pyro Cnuka 11.9 IIpucmyn npu kopuuihetby (IHsejanos6, 2021) ...
    ... 23%, a 0.409% ro He OH pajmMHno He3AaBHCHO OJL y}laJbČHOCTH peniKJI0OMaTa. HajBeha yna;beHOCT m lo 200 veTapa m On 200 no 500 veTapa m On 500 no 1000 veTapa 35.28% m [ipeko 1000 veTapa m He 6vx panvo/na 6e3 HakHane Cnuka 11.8 Hajaeha y0az:benocm peuuknoama npu kopuuihetby (IHeejano6, ...
    ... 25 M4nuh, M., 2002. Cnpameuuku ok6aup 3a no/numuky yrnpa6rbakbba omna0oM, PerMoHanHuM ueHTap 3a 3a X{MBOTHy Cpe/MHy 3a L|eHTpannHy M M4crouHy EBpony, Beorpan. ? MapwiHkoaBuh, 3., JoBaHoBuh, M., JaHouienuh, J1., 2010. /lIozucmuka yrnpa6erbakboa omna8oM, VMMK-14 - Vicrpaxx\Babbe M pa3Boj, 16{1) ...

  • Results of Recent Monitoring Activities on Landslide Umka, Belgrade, Serbia—IPL 181

    Biljana Abolmasov, Uroš Đurić, Jovan Popović, Marko Pejić, Mileva Samardžić Petrović, Nenad Brodić (2021)
    Klizišta, Monitoring, GNSS, Geodetska osmatranja, UAV snimci, PSInSAR
    ... Đurić � J. Popović � M. Pejić � M. Samardžić Petrović � N. Brodić Faculty of Civil Engineering, University of Belgrade, Bul Kralja Aleksandra 84, 11000 Belgrade, Serbia e-mail: udjuric@grf.bg.ac.rs J. Popović e-mail: jpopovic@grf.bg.ac.rs M. Pejić e-mail: mpejic@grf.bg.ac.rs M. Samardžić Petrović ...
    ... Displacement rates from GNSS measure- ments indicate that object point UmkaGNSS2 has moved 0.30 m towards the North and 0.50 m towards the West, while the vertical displacement was approximately −0.15 m for the 2014–2018 time span. Similar range of GNSS displacement rates were found in previously ...
    ... (March 2010–December 2013) the monitoring point Umka (GNSS1) has moved 0.46 m towards the North (Dx), and 0.70 m towards the West (Dy). Based on those results it can be concluded that the total 2D surface displacement was 0.84 m towards the Northwest, i.e. towards the Sava River. Furthermore, during ...

  • Снимање подземних инсталација GPR (Ground penetrating Radar) системом

    Невена Ђурђев (2024)
    Циљ овог мастер рада на тему ,,Снимање подземних инстлација GPR (Ground penetrating radar) системом” је био да се прецизно идентификују положаји подземних инсталација и прикључака, због сумње да су поједине инсталације постављене изван пројектованих позиција.Георадарски систем одабран је за детектовање и идентификовање подземних инсталација, због своје способности да обезбеди неинвазивно и детаљно снимање подземних структура.Првобитно је примењена GNSS метода снимања коришћењем GPS-а, потом услед немогућности отварања шахти, одлучено је да се примени георадарска у комбинацији са електромагнетном методом. Након ...
    катастар, катастар водова, подземне инсталације, методе детекције подземних инсталација, георадарска метода, георадар
    ... pacTojabe H3Meby npeHoBa H3HOCH: • yjamecakK oJ 30 m mo 50 m; • „HeCKOBHTAa HJIOBaua OJI 25 m Jno 35 m; • aKa HMoBaua oJ 20 m no 30 m; • cpemMa HMOBaua oJ 14 m no 20 m; • TeuHa HHOBaua (rMHHa)onm 8 m no 15 m; • HHMH3HJCKH TpeceT onm 20 m no 40 m [5]. MunumaitHH HarH0H JıipeHoBa 3aBHCE OJI BpCTe ...
    ... 4A 0 eJICKTpHuHH KaOJIOBH HHCKOr HanoHa: 0,5 m – 0,8 m; eJICKTpHuHH KaOJIOBH BHCOKOTr HamoHa: 0,8 m – 1,2 m; TeJe(QOoHcku KaOmonBu: 0,4 m – 0,8 m; racoBoJi: 1,0m – 1,5 m; TornoBoJ:: 0,5 m – 1,5 m; BojopBojJi: 1,4m – 1,8 m; KaHannaanuja: 1,4 m – 2,0m [5]. HajMamH xopH3oHTajJiHH pa3Marui ...
    ... HanoHa: 1,0 m; TEJIČKOM — CJIČKTPp.Ka0JI HHc. HanoHa: 0,5 m; TeJIČKOM — BOJIOBoOJI: 0,8 m – 1,0 m; TEJIČKOM — TOTIJIOBOJI: 2,0 m; TeJIČKOM — racoBoJi: 1,0 m – 2,5 m; BOJIOBOJI — CJIČKTDp.Ka0Ji BHc.HanoHa: 0,8 m; BOJIOBOJI — CJIČKTp.Ka0;t HHc.HanoHa: 0,5 m; BOJIOBOJI — KaHanmnanja: 1,0 m – 1,5 ...

  • Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications

    Vesna Lesić, Emo Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov (2018)
    The Vardar-Tethyan mega-suture between the Eurasian and Adria (Gondwana) margins comprises remnants of oceanic lithosphere of Neotethys and distal parts of the adjacent continental margins including unconformable Late Cretaceous sedimentary cover and Cenozoic igneous rocks of post-obduction age. This study provides kinematic constraints for displacements and rotations affecting the Serbian part of the West Vardar and Jadar-Kopaonik units after the closure of the Neotethyan (= Sava) Ocean. The targets of the paleomagnetic research were Late Cretaceous sediments representing an ...
    Paleomagnetism, Clockwise rotation, Dinarides, West Vardar zone
    ... Urošević, M., Pavlović, Z., Klisić, M., Brković, T., Malšević, M., Stefanović, M., et al. (1973a). Geological map and Explanatory Notes of the Basic Geological Map of SFRJ, sheet Vrnjci (1:100 000) (p. 69). Beograd: Savezni Geološki Zavod. Urošević, M., Pavlović, Z., Klisić, M., Karamata ...
    ... U p p e r C a m p a n ia n 8 L ip o v ic a q u ar ry 4 2 0 1 – 2 2 5 4 4 � 1 6 0 0 5 00 2 0 � 3 9 0 0 5 00 L im es to n e v ar ie g at ed 1 6 /2 5 5 .8 * 5 2 .7 * 3 9 6 .0 3 6 .0 5 0 .6 3 4 6 .4 V ar ia b le T u ro n ia n S u m m ar y o f lo ca li ty m ea n p al eo m ag n et ic d ...
    ... ec te d u si n g IG R F -1 2 In te rn at io n al G eo m ag n et ic R ef er en ce F ie ld m o d el (T h éb au lt et al . 2 0 1 5 ). T h e ag e d et er m in at io n w as d o n e b y M il en a D u n či ć b as ed o n w el l p re se rv ed m ic ro fo ss il as so ci at io n s ex ce p t fo r lo ca ...

  • Анализа специфичних услова циркулације карстних подземних вода врела Градишта

    Јована Јанковић (2024)
    Карстно врело „Градиште“ налази се у истоименом селу, и користи се у сврху водоснабдевања града Пирота и околних села. Врело је настало на контакту неогених творевина Пиротске котлине и карстног масива Старе планине. Карстна издан сама по себи је хетерогена и анизотропна те се тешко успостављају правила и принципи циркулације подземних вода. О специфичности циркулације предметног врела најбоље говори анализа изотопске методе где је добијена старост воде и установљено постојање полумладих вода које залежу дубље у односу на младе ...
    врело „Градиште“, карстна издан, специфична циркулација, дубина циркулације подземних вода
    ... t) PV-8 M-II-3 "Co-Pt skala | Bez 5 3 Mupuc PV-8 M-II-5 Bez Bez 4 NKyc SM P-IV-3 Bez Bez 5 Myruoha NTU SM P-IV-4/B NTU 0.32 1 6 pH PV-8 M-III-2 7.2 6.8-8.5 7 Yrpomak EMn0& (mg/I) PV-8 M-III-7 mg, 471 8 8 Pesuznyamm x;rop-Ciz PV-8 M-III-23 mg, 0 0.5 9 XnopujnnCl-(mg/I CI) PV-8 M-III-6 mg ...
    ... ) PV-8 M-II-3 "Co-Pt skala Bez 5 3 Mupuc PV-8 M-II-5 Bez Bez 4 VKyc SM P-IV-3 Bez Bez 5 MyruHoha NTU SM P-IV-4/B NTU 3.06 1 6 pH PV-8 M-III-2 7.0 6.8-8.5 7 Yrpomax EMn0& (mg/I) PV-8 M-III-7 mg/l 7.17 8 8 Pesnatyannn xjrop-Ciz PV-8 M-III-23 mg/l 0.5 9 XunopnajaCl-(mg/I CI) PV-8 M-III-6 mg/l ...
    ... - Tleuiuapu, nanopuu M kpeubbaLl - Kpeutbauu, nanopuu M neuluapnM 355 CnpyanHu u cy6cnpynHM nanopoBMTM KpeukbaLM - 47 75 00 0 Kpeubaun - KBapuHu KoHrnoMeparu M neutuappn Bpeno Iy{animrre - KoHrnomepartu, neuiuapu M InMHLUM - Kpeutbau, nonoMWMTMuHM neuiuapuM M nOJOMMTM 47 70 00 0 ...

  • Uticaj površinske obrade kamena na promenu primarne poroznosti

    Ana Radivojević (2024)
    Površinska obrada kamena je izuzetno bitna kod stena koje se koriste u izgradnji svih vrsta objekata. Površinskom obradom se direktno utiče, ne samo na estetska svojstva kamena nego i na njegove fizičko-mehaničke karakteristike. Cilj ovog završnog rada je analiza uticaja poliranja i rezanja kao tehnoloških procesa obrade na poroznost odabranih vrsta arhitektonsko-građevinskog kamena. Ispitivane stene su gabro „Nero Assoluto“, granit sa površinskog kopa „Ploče“, granit African Red, krečnjak sa lokaliteta „Skržut“ i krečnjak poznat pod nazivom „Sirogojno crveni“.
    polirana površinska obrada kamena, rezana površinska obrada, poroznost, kapilarno upijanje vode
    ... sa površinskog: kopa „Skržut“ se najčešće pojavljuje u vidu debeloslojevitih masa čiji sloj iznosi 0.5 m, ili u vidu bankovitih krečnjaka gde je sloj debljine oko 1 m, a u nekim delovima čak 2 m (Matović, P., 2009). Ovakva teksturna osobina značajno olakšava eksploataciju homogenih blokova velikih ...
    ... l-Cura, M. A., et al. 2007). Najhrapavije površine kamena se postižu termičkom obradom (Gracia-del-Cura, M. A., et al. 2007). Na primer, pokazano je da liskuni u granitu postaju reljefno istaknutiji, dok kod krečnjaka ista metoda dovodi do pucanja kristala kalcita (Gracia-del-Cura, M. A., et ...
    ... IE posle 48h vode sušenja do ; 72h 96h Uzorak k potopljenog u : . (Ab) onstantne ; potopljenog u | potopljenog vodi (m;) . : [%] mase (mua) [g] l| vodi (m»>) u vodi (m.) Š [-] [#] 2.1. 208.27 209.32 209.37 209.37 0.53 2.2. 210.04 211.07 211.12 211.12 0.51 2.3. 210.02 211.12 211.17 211 ...

  • Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)

    Dušan Polomčić, Dragoljub Bajić, Jelena Zarić (2015)
    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 ...
    Water supply, Aquifer, Flow, Groundwater regime, Numerical modeling, Particle tracking
    ... depth of 300 m. Its orientation was north-south and the discretization 100 m × 100 m in three layers. Grid Journal of Sustainable Development of Energy, Water and Environment Systems Year 2015 Volume 3, Issue 3, pp 217-229 222 cells size was refined to 12.5 m × 12.5 m in the area of ...
    ... Banat Plain, where the highest elevation is 83 m and the lowest 76 m. Water supply is provided to Kikinda by means of 11 wells. The tapped water-bearing horizon is at a depth of about 250 m, formed in Quaternary sands whose thickness is about 50 m. In the vicinity there are also groundwater sources ...
    ... widths were specified according to a topographic map, with an elevation 0.5 m less than the minimum canal water level, and the thickness of the bottom canal layer of 0.15 m, with a hydraulic conductivity of 1 × 10-6 m/s. Using the same boundary condition (head-dependent flux boundary condition) ...

  • Some examples of interactions between certain rare earth elements and soil

    Zlatko Nikolovski, Jelena Isailović, Dejan Jeremić, Sabina Kovač, Ilija Brčeski (2021)
    Freundlich adsorption isotherm, sequential extraction, metallic ions, ICP-OES
    ... D. M. Lyons, M. Toscanesi, M. Trifuoggi, J. Arch. Environ. Contam. Toxicol. 81 (2021) 531 (https://doi.org/10.1007/s00244-020-00773-4) 3. V. Balaram, J. Geosci. Front. 10 (2019) 1285 4. V. M. Goldschmidt, J. Chem. Soc. (Resumed) (1937) 655 (https://doi.org/10.1039/JR9370000655) 5. M. Bernat ...
    ... saturation. Sorption capacity is represented by equation (1): q = (co - c1 /m)V (1) where q is sorption capacity (mg g-1), co initial metallic ions solution concentration (mg L-1), c1 equilibrium concentration (mg L-1), m adsorbent mass (g) and V the solution volume (L).19 Preparation of soil samples ...
    ... Takaya, K. Yasukawa, T. Kawasaki, K. Fujinaga, J. Ohta, Y. Usui, K. Nakamura, J. Kimura, Q. Chang, M. Hamada, G. Dodbiba, T. Nozaki, K. Iijima, T. Morisawa, T. Kuwahara, Y. Ishida, T. Ichimura, M. Kitazume, T. Fujita, Y. Kato, Scientific reports 8 (2018) (https://doi.org/10.1038/s41598-018-23948-5) ...