Претрага
2413 items
-
Low-temperature phase transition and magnetic properties of K3YbSi2O7
Predrag Dabić, Volker Kahlenberg, Biljana Krüger, Marko Rodić, Sabina Kovač, Jovan Blanuša, Zvonko Jagličić, Ljiljana Karanović, Václav Petříček, Aleksandar Kremenović (2021)alkalni silikati elemenata retkih zemalja, fazni prelazi, magnetne karakteristike, razdvajanje kristalnog polja, silikati lantanicaPredrag Dabić, Volker Kahlenberg, Biljana Krüger, Marko Rodić, Sabina Kovač, Jovan Blanuša, Zvonko Jagličić, Ljiljana Karanović, Václav Petříček, Aleksandar Kremenović. "Low-temperature phase transition and magnetic properties of K3YbSi2O7" in Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials, International Union of Crystallography (IUCr) (2021). https://doi.org/10.1107/S2052520621006077
-
Improvement of education through the cooperation between CEEPUS EURO Geo-Sci network and scientific projects: examples from UB-FMG
Kristina Šarić, Dejan Prelević, Miloš Marjanović, Uroš Stojadinović, Vladimir Simić . "Improvement of education through the cooperation between CEEPUS EURO Geo-Sci network and scientific projects: examples from UB-FMG" in V Congress of Geologists of Republic of Macedonia ": “Geology in a changing world”, Makedonsko geološko društvo (2024)
-
Groundwater gravitational circulation of Karst Veliko Vrelo and Malo Vrelo springs by isotope and the noble gas method: case study of the Beljanica Massif
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental ChemistryLjiljana Vasić, Laszlo Palcsu, Huang Fen. "Groundwater gravitational circulation of Karst Veliko Vrelo and Malo Vrelo springs by isotope and the noble gas method: case study of the Beljanica Massif" in Environmental Earth Sciences, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s12665-019-8294-0
-
Mineralogy, chemistry, and distribution of selected trace elements in coal and shale from the Ibar Basin (South Serbia)
Željana Novković, Nenad Nikolić, Nevena Andrić-Tomašević, Violeta Gajić, Mercedes Suárez, Emilia García-Romero, Vladimir Simić, Dragana Životić (2024)Željana Novković, Nenad Nikolić, Nevena Andrić-Tomašević, Violeta Gajić, Mercedes Suárez, Emilia García-Romero, Vladimir Simić, Dragana Životić. "Mineralogy, chemistry, and distribution of selected trace elements in coal and shale from the Ibar Basin (South Serbia)" in Thermal Science, National Library of Serbia (2024). https://doi.org/10.2298/TSCI240405143N
-
Regional Slope Stability Analysis in Landslide Hazard Assessment Context, North Macedonia Example
... in North Mace- donia, under auspices of the World Bank and other global developing initiatives, put their effort and resources in research of natural phenomena and their impact instead of jumping to cheap solutions for coping with acute disaster aftermath. By 2018–19, a comprehensive project of ...
... to landslides, torrents and floods, which are all recorded in the past and have even greater potential to develop in the future, given the climate change context. Geological setting is complex, as the area belongs to an intensively tectonized zone, stressed, sheared and flexed many times in its ...
... l Service (https:// uhmr.gov.mk/), and the extreme daily precipitation from the baseline period (1981–2010). This part of the tool allows for simulating even higher precipitations, for longer periods, or for future rainfall projections, based on climate change scenarios. Topographic layer, which ...Miloš Marjanović, Biljana Abolmasov, Igor Peshevski, James Reeves, Irena Georgievska. "Regional Slope Stability Analysis in Landslide Hazard Assessment Context, North Macedonia Example" in Understanding and Reducing Landslide Disaster Risk, Springer International Publishing (2020). https://doi.org/10.1007/978-3-030-60227-7_29
-
Permanent GNSS monitoring of landslide Umka
Mileva Samardžić Petrović, Jovan Popović, Uroš Đurić, Biljana Abolmasov, Marko Pejić, Miloš Marjanović (2020)Клизиште Умка је једно од највећих насељених активних клизишта у Србији. Активност клизишта Умка се прати већ више од 85 година, различитим геотехничким и геодетским техникама. Од 2010. године, активност kлизишта се континуирано прати у реалном времену аутоматизованим перманентним системом за праћење базираним на Глобалним навигационим сателитским системима (ГНСС). Поред тога, од 2018. године активност клизишта се додатно прати кинематичким ГНСС одређивањем положаја скупа карактеристичних тачака као и применом UAV фотограметрије. Главни циљ овог рада је приказ резултата опажања три ...Mileva Samardžić Petrović, Jovan Popović, Uroš Đurić, Biljana Abolmasov, Marko Pejić, Miloš Marjanović. "Permanent GNSS monitoring of landslide Umka" in International Conference on Contemporary Theory and Practice in Construction XIV Stepgrad, University of Banja Luka, Faculty of Architecture, Civil Engineering and Geodesy (2020). https://doi.org/10.7251/STP2014091S
-
Control of substructure construction of railways in the Republic of Serbia
Контрола збијености природног тла (у ископу) или збијеног у насипу при изградњи саобраћајница представља један од основних облика контроле квалитета доњег строја. Код изградње брзих саобраћајница (аутопутеви и брза железница) приоритет је постизање високог нивоа контроле извршених радова. У циљу онемогућавања диференцијалног слегања (при изградњи насипа), или промене запремине услед допунског збијања материјала, које неминовно доводе до деформација, потребно је извршити оптимално збијање материјала. У оквиру овог рада приказује се техничка регулатива која регулише контролу збијености при изградњи железничке ...... substructure. When building high-speed roads (highways and high-speed railways), the priority is to achieve a high level of control over the performed work. In order to prevent differential settlement (during the construction of the embankment), or to change the volume due to additional compaction of the material ...
... open track tracks and main tracks on main railways Ev2 > 80 MN/m2, Ev2/ 5 MN/m2, Rc* for the construction and improvement of open railway tracks and main tracks on regional railways Ev2 > 60 MN/m2, Ev2/Ev1 m2, Rc* for the construction and improvement of tracks on local railways and secondary tracks ...
... the standard and technical conditions (harmonized with the standard) determine in examination process the zone where soil homogeneity is ensured (by granulometric composition and moisture) and in statistically reliable research conditions. Perform the necessary tests and correlations and, based on them ...Dragan Lukić, Dragoslav Rakić, Irena Basarić Ikodinović. "Control of substructure construction of railways in the Republic of Serbia" in International Conference On Contemporary Theory and Practice in Construction XV, Banja Luka 16-17 jun 2022., University of Banja Luka Faculty of Architecture, Civil Engineering and Geodesy (2022)
-
The analysis of the geothermal energy capacity for power generation in Serbia
Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk (2013)Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk. "The analysis of the geothermal energy capacity for power generation in Serbia" in Thermal Science, National Library of Serbia (2013). https://doi.org/10.2298/TSCI120215033S
-
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 Engineering... mechanical properties of extracted elements change in time primarily because of changes in the shape and size of components, conditions of waste disposal (e.g. compression and covering), changes in the stress state, deformation of certain particles and degradation process. One potential characteristic ...
... soil, differences from soil Material groups Kavazanijan (2006) Change of waste colour and compaction Degree of degradation and structure Zekkos (2005) Phase composition, classification Composition, age, temperature, moisture content, size and content of soil particles Rakic (2013) Visual inspection, ...
... Figure 7 and Table 3 (Rakic, 2013). Figure 7 shows that the dominant function of plastic materials is reinforcement, while solid components (such as small fragments of wood, pieces of metal and glass) are included in the incompressible material group. These materials do not change their shape and do not ...Dragoslav 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
-
Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability
Marija Živković, Dejan Ivezić (2021)Transformation of the heating sector is recognized as being essential for ensuring reliable and afordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import dependency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered and treated as a big advantage of district heating systems. Despite many advantages, sewage wastewater heat is still a mostly unused resource at the global level and a totally unused ...рекуперација топлоте из отпадних вода, систем даљинског грејања, топлотне пумпе, енергетске уштеде, емисија угљендиоксида, енергетска безбедност, СрбијаMarija Živković, Dejan Ivezić. "Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability" in Clean Technologies and Environmental Policy, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10098-021-02063-6
-
Centar za hidrogeologiju karsta - 15 godina nauke i struke
... 24 of water in karst, risks, and conflict management at local and/or international levels. • Regulation in arid areas. • Practical examples and global experiences. Since this subject was introduced in the master's program in hydrogeology at FMG, theoretical and practical classes have been ...
... Beogradu, str. 315 Milanović, S., Stevanović, Z., Vasić, Lj., Saljnikov E., Povrenović D. (2012): Land use and safety — and use and groundwater quality in the test areas, CCWatersS – Climate Change and Impact on Water Supply., Edt. Stevanović Z., Ristić Vakanjac V., Milanović S. University of Belgrade-FFaculty ...
... climate change and groundwater protection. She has many years of experience in groundwater monitoring, as well as in defining: the genesis, origin and mechanisms of groundwater recharge; groundwater mean residence . time and groundwater age; interconnections between surface and groundwater ...urednici Saša Milanović, Ljiljana Vasić, Zoran Stevanović, Branislav Petrović. Centar za hidrogeologiju karsta - 15 godina nauke i struke, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, Centar za hidrogeologiju karsta, 2023
-
Critical disorder and critical magnetic field of the nonequilibrium athermal random-field Ising model in thin systems
... curves above and below Rc; see Refs. [3,18]. The collapses are shown in Fig. 7 (CCO case) and Fig. 8 (CCC case) and are achieved in the same way as the corresponding collapses of magnetization, shown in Figs. 5 and 6, respectively. V. DISCUSSION In this paper we have analyzed how the change of boundary ...
... finite thickness and infinite lateral sides changes with thickness on the crossover from three-dimensional (3D) to two-dimensional (2D) case, as well as how the effective critical disorder of finite systems behaves when the thickness and/or lateral sizes of these systems change. To continue this ...
... affected by the change of boundary conditions from the CCO to the CCC case, whereas the l � 4 systems 032113-9 SVETISLAV MIJATOVIĆ et al. PHYSICAL REVIEW E 100, 032113 (2019) behave differently owing to a quite high percentage of the spins affected by that change (50% for l = 4 and 100% for l = ...Svetislav Mijatović, Dragutin Jovković, Sanja Janićević, Đorđe Spasojević. "Critical disorder and critical magnetic field of the nonequilibrium athermal random-field Ising model in thin systems" in Physical Review E, American Physical Society (APS) (2019). https://doi.org/10.1103/PhysRevE.100.032113
-
Bioleaching Process for Copper Extraction from Waste in Alkaline and Acid Medium
Flotation wastes are becoming a valuable secondary raw material and source of many metals and semimetals worldwide with the possibilities of industrial recycling. The flotation tailings contain oxide and sulfide minerals that have not been sufficiently stabilized and form acidic mine waters, which in turn contaminate groundwater, rivers, and reservoi6sediments. An effective way to recycle these mine wastes is to recover the metals through leaching. While the focus is on acid bioleaching by iron- and sulfur-oxidizing bacteria, alkaline leaching, ...Ivica Ristović, Darina Štyriaková, Iveta Štyriaková, Jaroslav Šuba, Emilija Širadović. "Bioleaching Process for Copper Extraction from Waste in Alkaline and Acid Medium" in Minerals, MDPI (2022)
-
Mitigating hydrate formation in onshore gas wells: A case study on optimization techniques and prevention
Gas wells, particularly those situated onshore, play a vital role in the global energy sector by supplying a significant portion of natural gas. However, operational challenges, notably gas hydrate formation, pose substantial issues, leading to complications such as flowline blockages and unexpected well shutdowns. Gas hydrates, crystalline structures resembling ice, ...Gas Well, Gas Hydrate Formation, Well Modeling, Well Performance Optimization, Choke Position Adjustments, Methanol InjectionMilica Ješić, Bojan Martinović, Stefan Stančić, Miroslav Crnogorac, Dušan Danilović. "Mitigating hydrate formation in onshore gas wells: A case study on optimization techniques and prevention" in Underground Mining Engineering, Beograd : Rudarsko-geološki fakultet (2023)
-
Old or New, We Repair, Adjust and Alter (Texts)
Cvetana Krstev, Ranka Stanković (2020)U ovom radu predstavljamo kako se e-rečnici i kaskade transduktora konačnih stanja implementirani u alatu Unitex mogu koristiti za rešavanje tri problema transformacije teksta: ispravljanje tekstova nakon OCR-a, vraćanje dijakritičkih znakova i prebacivanje između različitih jezičkih varijanti.ispravka teksta, OCR greške, restauracija dijakritika , jezičke varijante, elektronski rečnik, transduktori konačnih stanjaCvetana Krstev, Ranka Stanković. "Old or New, We Repair, Adjust and Alter (Texts)" in Infotheca, Faculty of Philology, University of Belgrade (2020). https://doi.org/10.18485/infotheca.2019.19.2.3
-
Debris-flow Susceptibility Assessment in Flow-R: Ribnica River Case Study
Debris flows are among the most dangerous erosional geohazards due to the fast rate of movement and long runout zones. Even though the initiation can be triggered in mountainous areas, inhabited and with steep slopes, their propagation and deposition can endanger not only buildings and infrastructure in the urbanized areas, but also threaten human lives. As these initiation areas usually represent unattainable terrains with rapid vegetation cover development, field observations and aerial photo analysis become high-demanding tasks. Consequently, medium-to-regional ...Ksenija Micić, Miloš Marjanović, Biljana Abolmasov . "Debris-flow Susceptibility Assessment in Flow-R: Ribnica River Case Study" in Proceeding of the 6th Regional Symposium on Landslides in the Adriatic-Balkan Region, ReSyLAB 2024, University of Belgrade, Faculty of Mining and Geology (2024). https://doi.org/https://doi.org/10.18485/resylab.2024.6
-
Flotability of chalcopyrite from the Rudnik deposit
Директно селективно флотирање олова, бакра и цинка у флотацији рудника „Рудник” датира од 1984. године. Технолошка шема омогућава директно издвајање селективних концентрата у три циклуса. У првом циклусу се издваја минерал олова (галенит), док су минерал бакра (халкопирит) и минерал цинка (марматит) депримирани. У другом циклусу се оток концентрације минерала олова кондиционира и припрема за издвајање минерала бакра. Након кондиционирања, у овом циклусу се издваја минерал бакра. У трећем циклусу се оток концентрације минерала бакра кондиционира и припрема за ...... of the collective concentrate of the lead and copper minerals, as well as the selective concentrate of zinc, began. After the change in the technological scheme of the process in the flotation plant, since 1984, selective concentrates of lead, copper and zinc have been extracted according to a unique ...
... performed as a function of collector (KAX) consumption and pH. In the fourth and fifth series, the possibility of chalcopyrite depression as a function of depressant (NaCN) consumption, collector (KAX) consumption and pH was investigated. In the sixth and seventh series, the possibility of activating previously ...
... function of collector (KAX) consumption and pH was investigated. Key words: direct selective flotation, chalcopyrite, KAX, NaCN Introduction The flotation technology of lead and zinc ore on the "Rudnik" flotation has changed over time. Until 1965, lead and zinc concentrates extraction were achieved ...Đurica Nikšić, Predrag Lazić, Milena Kostović. "Flotability of chalcopyrite from the Rudnik deposit" in Journal of Mining Science, Springer Verlag (2021). https://doi.org/10.1134/S1062739121030170
-
Hydraulic impact of pressure transients from water conveyance tunnel on the complex hydrogeological system: A case study HPP
Tunel pod pritiskom, Unutrašnji pijezometri, Tranzijenti pritiska, Karstna izdan, Pukotinska izdan, Hidraulički odziv... formations have a complex void system, that affects the hydraulic properties of fractured rocks. These properties can change due to engineering activities during construction and operation in many engineering practices (Zhou et al., 2023). According to their construction, tunnels can be either ...
... immediate tunnel zone and groundwater pressure (Schleiss, 1997, Fernandez and Moon, 2010, Moon and jeong, 2011 ). Usually, in complex geological conditions in hard rocks, tunnels with a large diameter are made of unreinforced concrete lining with grouting to provide stability and prevent permeability ...
... involved monitoring of water pressure in the surrounding rock masses and observing the impact of hydraulic transients generated by HPP operation. A comprehensive analysis of monitoring data, incorporating ordinal and partial correlations and considering geological features, provides a profound understanding ...Igor Jemcov, Maja Todorović, Aleksandar Jemcov, Marina Ćuk Đurović. "Hydraulic impact of pressure transients from water conveyance tunnel on the complex hydrogeological system: A case study HPP" in Journal of Hydrology, Pirot, 2024, Elsevier BV (2024). https://doi.org/10.1016/j.jhydrol.2024.132068
-
Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)
Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović. "Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)" in Carbonates and Evaporites, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s13146-019-00548-6
-
Природни потенцијал минералних вода Србије - Natural potential of mineral waters in Serbia
Оливера Крунић (2021)... 154: 237‒246. [60] Lu, H. Y., Zhang, F. & Liu, X. D., 2002. Patterns and Frequencies of the East Asian Winter Monsoon Variations during the Past Million Years Revealed by Wavelet and Spectral Analyses. Global and Planetary Change 35: 67‒74. [61] Lu, H. Y., Zhang, F., Liu, X. D. & Duce, R., 2004. ...
... IRSL protocol. Quaternary International 234: 23‒31. [105] Vandenberghe, J. & Nugteren, G., 2001. Rapid changes in loess successions. Global and Planetary Change 28: 1‒9. [106] Vandenberghe, J., An, Z., Nugteren, G., Lu, H. & Van Huissteden, C., 1997. A new absolute timescale for the Quaternary ...
... post-IR IRSL protocol. Quaternary International 234: 23-31. [105] Vandenberghe, J. & Nugteren, G., 2001. Rapid changes in loess successions. Global and Planetary Change 28: 1-9. [106] Vandenberghe, J., An, Z., Nugteren, G., Lu, H. & Van Huissteden, C., 1997. A new absolute timescale for the Quaternary climate ...Оливера Крунић. "Природни потенцијал минералних вода Србије - Natural potential of mineral waters in Serbia" in Рационално коришћење земљишта и вода у Србији - Sustainable Use of Land and Water in Serbia- Serbian Academy of Sciences and Arts; Scientific Conferences Volume CXCVII; Department of Chemical and Biological Sciences, Book 19, Српска академија наука и уметности (2021)