Претрага
1420 items
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Application of Expansive Mortars for the Formation of Artificial Screens During Blasting in Urban Areas
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 ...Milanka Negovanović, Lazar Kričak, Stefan Milanović, Nikola Simić, Jelena Majstorović. "Application of Expansive Mortars for the Formation of Artificial Screens During Blasting in Urban Areas" in 31st International Conference Ecological Truth & Environmental Research-EcoTER'24, Sokobanja, 18-21. jun 2024, Bor : Tehnički fakultet u Boru (2024)
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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)... ANALYSIS OF THE GEOTHERMAL ENERGY CAPACITY FOR POWER GENERATION IN SERBIA by Jana S. STOJKOVI] a*, Goran H. MARINKOVI] b, Petar J. PAPI] a, Mihailo G. MILIVOJEVI] a, Maja M. TODOROVI] a, and Marina D. ]UK a a University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia b Geological Survey of ...
... range from 100 °C to 175 °C. In a binary plant, the hot-water circuit passing through the thermal source is separated from the closed loop working fluid used in the turbine by a heat exchanger. The hot water gives up its heat in the heat exchanger to a working fluid with a low boiling point and high vapour ...
... minerals forming some 75% of the Earth's crust. Silicon is a macro-element of a large number of petrogenic minerals and is therefore widespread in igneous, metamorphic and sedimentary rocks. Silicon concentration is very high before the main stage of a crystallization. It is highest in granites and notably ...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
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Distribution of major and trace elements in the Kovin lignite (Serbia)
Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović (2019)geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive Xray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). ...... this paper. G eo lo g ia C ro a ti ca Geologia Croatica 72/154 Figure 2. Macropetrographic profiles of boreholes GD-601 (a) and GD-603 (b) in the A field lignite and the vertical distribution of minerals and major elements in coal. G eo lo g ia C ro a tica Životić et al.: Distribution ...
... (Serbia) 55 Xray powder diffraction (XRPD). Analysis was performed on a Philips PW 1710 powder diffractometer with CuKα1,2 = 1.54178 Å radiation and a 40 kV, 30 mA. The XRD pattern was recorded over a 2θ interval of 4–70°, with a step size of 0.02° and the fixed counting time of 1 s per step. Xray ...
... respectively, which is on average from low (<10%) to a very high ash level (>50%). Most of the Kovin lignite contains a low to medium sulphur (dry basis) content, whereas four samp les contain a higher sulphur content of more than 3%. Coal seam I has a medium (1–3%) to high sulphur content (>3%), with ...Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović. "Distribution of major and trace elements in the Kovin lignite (Serbia)" in Geologia Croatica, Croatian Geological Survey (2019). https://doi.org/10.4154/gc.2019.06
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Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software
The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić. "Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software" in Podzemni radovi, Beograd : Rudarsko-geološki fakultet (2024)
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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... partitioning in a large intracontinental strike-slip system accommodating backarc-convex orocline formation: The Circum-Moesian Fault System of the Carpatho-Balkanides Nemanja Krstekanić a,b,*, Liviu Matenco a, Uros Stojadinovic b, Ernst Willingshofer a, Marinko Toljić b, Daan Tamminga a a Utrecht ...
... 53–100. Antić, M.D., Kounov, A., Trivić, B., Wetzel, A., Peytcheva, I., von Quadt, A., 2016a. Alpine thermal events in the central Serbo–Macedonian Massif (southeastern Serbia). Int. J. Earth Sci. 105, 1485–1505. Antić, M., Peytcheva, I., von Quadt, A., Kounov, A., Trivić, B., Serafimovski, T ...
... Tisza–Dacia plate. Glob. Planet. Chang. 103, 82–98. De Vicente, G., Regas, R., Muñoz-Martín, A., Van Wees, J.D., Casas-Sáinz, A., Sopeña, A., Sánchez-Moya, P., Arche, A., López-Gómez, J., Oláiz, A., Fernandez Lozano, J., 2009. Oblique strain partitioning and transpression on an inverted rift: ...Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga. "Strain partitioning in a large intracontinental strike-slip system accommodating backarc-convex orocline formation: The Circum-Moesian Fault System of the Carpatho-Balkanides" in Global and Planetary Change, Elsevier BV (2022). https://doi.org/10.1016/j.gloplacha.2021.103714
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A hundred years of Milutin Milanković's climate change theory - geological implications
Dejan Radivojević (2020)Миланковићева теорија циклуса објављена пре сто година је најважнија теорија у наукама које проучавају климу и имала је велики утицај на дисциплине које се баве Земљом. Ипак, његов рад је чекао више од педесет година да би добио потврду. Може се рећи да Миланковићев рад највећи утицај на геологију има у изради астрономске временске скале, подршци хипотези континенталног дрифта и палеоклиматологији. Добри резултати примене астрономске временске скале на неогене седименте иницирали су примену ове методе у мезозојским и у последње ...циклостратиграфија, астономска временска скала, геолошка временска скала, климатске промене, континентални дрифт... and at age of 25 (on Decem- ber 12th, 1904) gained a PhD and become the first Serbian Doctor of Technical Science. As a construc- tion engineer, he was one of the pioneers of rein- force concrete application, had six patents (eight in total), and get a glory as well-paid innovator. In 1909 he received ...
... climate changes have been a heated debate both, in the media and scientific cir- cles. People have become aware of its influence on the increased emission of carbon dioxide and tem- perature rise. As a result, many oil and other large manufacturing companies came under the public at- A hundred years of Milutin ...
... band. Eos Trans. Am. Geophys. Union,47 (82):F2. PoUSSART, P.A., WEAvER, A. j. & BARNES, C.R. 1999.Late or- dovician glaciation under high atmospheric Co2: A coupled model analysis, Paleoceanography, 14 (4): 542–558. PETRovIć, A. & MARKovIć S. 2010. Annus mirabilis and the end of the geocentric causality: ...Dejan Radivojević. "A hundred years of Milutin Milanković's climate change theory - geological implications" in Geološki anali Balkanskoga Poluostrva, Univerzitet u Beogradu, Rudarsko geološki fakultet (2020). https://doi.org/10.2298/GABP201125011R
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Одређивање оптималне производње дубинске пумпе на клипним шипкама
Небојша Савић (2024)Дужи временски период током историје производње нафте, дубинске пумпе на клипним шипкама су први и у многим случајевима једини избор када су у питању механичке методе експлоатације. Правилан одабир сваког појединачног елемента система омогућава оптимизацију која са собом повлачи бенефите у виду повећавања ефикасности и смањења трошкова. Тренутно примењени систем дубинских пумпи на клипним шипкама на лежишту „Н“ обезбеђује стабилну производњу и реализацију годишњих планова производње без већих проблема. У овом раду је приказан начин оптимизације производње дубинским пумпама ...... aaeaaaetatetakekekNe 25 4. IIOBPIIIMHCKA OIIPEMA 3A /[yYBHHCKO IIYMITIASMĐE.......nan a 26 4.1. KadajbKa.aa a aaaaaa a aaa a aaaaaaaaaaaa a aaaaaaaagaaeaaaoaaaaaakati 27 4.2. IIOrOHCKH MOTOP......aaaaaaaa a aanaaaaaaaaanaaeanaeaeaeaeaeaaeaeaaaaaeaaaaakatatet 29 PORRNJ OGA ) RORORARIRAARARAR ...
... Hnekca /PS 23 / yA HsjaBMbyjeM a je 3aBpIHHH pa/jl TiOJi HaCJIOBOM ONA A — _ 204> ! ()r'—··\—–·;v&.'·'r—\·{··a·« E.XVASC. a Or _ r ) Ć (i4APO r O Oc OOp VOOOBMMMANKLC CiCOOTAC \R VJ{ ikic a LMWCI{W{Ca{y o • pe3yjrraT COIJCTBEHOr HCTpa);KHBauMKor palla, • a 3aBpMIHH paji y HeJMHHM HH y /(eJIOBHMA ...
... ltt aaaaaaaaaaaaaanaaaeaeaeeeaaeeaaaaaaaaaaaaaaaaatatet 14 3.2. LacHa cHnpa...aaaaaaaaaaaa a aaaaananaaenaeaaeaaaaeeaaaaaaaaaaeaaaatatetakekekeee 20 3.3. KJIHIIHE IHIHITKE al nanaeaanaa a aaaaaaa a aaaaaa a aaaaaaaeaaaaaaNtvk 23 3.4. TyOHHT aHKČP......aaaaaannaaaaaaaaaaaaanaaaanaaaeaeaeeeaeaaaaa ...Небојша Савић. Одређивање оптималне производње дубинске пумпе на клипним шипкама, 2024
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Tехничко решење заштите површинског копа Дрмно од површинских вода у 2025. години
Иван Јованчевић (2024)Објекти одводњавања површинског копа морају поуздано обављати своју функцију, а да су при томе економични. Једна од функцијуа им је и да спрече доток површинских вода у радну контуру површинског копа, као и да воде које доспеју у радну контуру, прихвате и спроведу до водосабирника, а затим је одатле одстране ван радне контуре површинског копа. Овим завршним радом је сагледано постојеће стање система одводњавања површинских вода на површинском копу лигнита Дрмно у 2024. години, и дато по мом мишљењу једно ...... OyJne: Qa = 1.000*F*i*T" – q(T-to) = a*T"-q(T-to)(m*), (3.2.27) rne je: a= 1.000*a*F*i, (3.2.28) IIpBH H3BOJI OBE (DyHKLHje o T je: Qa: = m*a*T! – q, (3.2.29) a npyrH H3BOJI Qa' = m*(m-1)*a*Tm-2ž, (3.2.30) Kako Je m < 1, ro je i Qa< 0, mro 3Hauu a (b)yHkuja H8Ma MaKCHMJyM 34: E T=(__)m ...
... TaKBH Jla HCIIyPbaBajy cJIenehe ycJIOBe: • -a ce 3a OOJMK H JHMeH3HJe KaHajta H3aOecpe XxHpayhMuKH HaJHOBOJbHHJH OOJIHK KaHajla, • -a ce OOJMK KaHajma IipHaro)u MeXaHH3OBaHOJ H3pajlu, • -a Ce OOJMK H HMecH3Hje KaHajma rpu:zmarojie najly KaHaja, • -a Ce OOJMK H JHMcH3HJe KaHajta HpHHaroje BpcTH ...
... Jyny 1997. romaHe, Kana je M3HOcHO 228,2 mm, a MHHHMyM y HOBEMOpy 2011. roywaHe, Kajna Huje OMO rajtaBHHa. IIpoceuHa rojHmm»a cyMa najlaBHHa 3 aaHanmanHpaHu nepuo,t aaHocH 642,48 mm. Hajnumre nanaBuHa 3aOenexxeHo Je TOKOM 2001. ronuaHe (881,2 mm), a HajMaPbe y TOKy 2011. roxmaHe, Kajna je BaaryueHo ...Иван Јованчевић. Tехничко решење заштите површинског копа Дрмно од површинских вода у 2025. години, 2024
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Srbija u OneGeology Europe
Геолошки завод Србије као носилац Пројекта ОneGeologyEurope заједно са Рударско геолошким факултетом и Министарством за природне ресурсе, рударство и просторно планирање су се укључили у међународни Пројекат OneGeology Europe у мају 2013. године у већ поодмаклој фази израде Пројекта. До краја 2013. године испунили су завршене активности које треба да доведу до пуноправног укључења у Пројекат чиме је Република Србија нашла своје место на Геолошкој карти Европе 1:1М. Геолошка карта Србије 1:1М представља компилациону односно поједностављену верзију ОГК 1:500 ...... infrastructure. А multilingual metainformation system gives access to information about relevant data from 26 European countries, including a harmonized geological data presented on map at a scale 1:1M. Standardized map services were created to provide access to the maps through a new geoportal. ...
... infrastructure. А multilingual metainformation system gives access to information about relevant data from 26 European countries, including a harmonized geological data presented on map at a scale 1:1M. Standardized map services were created to provide access to the maps through a new geoportal. The ...
... Geology designates a key dataset that is needed for the Groundwater and Soils Directives, GMES and GEOSS. The aim of the OneGeology Europe Project (2008-2010) was to make geological maps at a scale 1:1M from Europe discoverable and accessible, make them available under a common data license, and ...Danka Blagojević, Ranka Stanković, Petar Stejić, Velizar Nikolić. "Srbija u OneGeology Europe" in Zapisnici Srpskog geološkog društva za 2013. godinu, Beograd : Srpsko geološko društvo (2014)
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Influence of Initial Treatment on the Survival and Recurrence in Patients With Differentiated Thyroid Microcarcinoma
... noma: a study of 535 cases observed in a 50-year period. Surgery. 1992;112:1139Y1147. 16. Hay ID, Hutchinson ME, Gonzalez-Losada T, et al. Papillary thyroid micro- carcinoma: a study of 900 cases observed in a 60-year period. Surgery. 2008; 144:980Y987. 17. Pelizzo MR, Boschin IM, Toniato A, et al ...
... receive RAI. Although it is not likely that a randomized trial can be performed, an appropriate design of such a trial should define the criteria for the surgical approach to be used as well as a staging/risk system for patient classification and to include a precise histological classifica- tion because ...
... 4% and 9.3% during the 5 years after the initial treatment. A possible explanation of the high recurrence rate may be that our study population had their primary surgery at hospitals throughout the country performed with a variety FIGURE 2. A, Probability of DSS. B, Influence of recurrence on DSS; - - ...Jasna Mihailović, Ljubomir Stefanović, Ranka Stanković. "Influence of Initial Treatment on the Survival and Recurrence in Patients With Differentiated Thyroid Microcarcinoma" in Clinical Nuclear Medicine, Lippincott Williams & Wilkins (2013). https://doi.org/10.1097/RLU.0b013e3182872ed2
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Петрологија црвених пешчара источне Србијe
Андреј Марковић (2024)У источној Србији формација црвених пешчара има велико распрострањење и улази у састав многих планина овог дела наше земље. Формацију чине кластичне стене интензивно црвене боје псамитске, ређе псамитско-псефитске структуре и алевритске структуре. Ове стене леже трансгресивно преко старијих пермо-карбонских и карбонских стена, док навише прелазе у доњотријаске седименте. Формација црвених пешчара захвата два појаса унутар Карпато-балканида – унутрашњи и средишњи део. Узорци анализирани у овом раду део су средишњег појаса. Тема завршног рада је петрологија црвених пешчара источне ...... PAJL | _ —| y \PARAĆIN 69 a= RIOXAPEBAT — } š izvor HOTEL _ = — / ii Sv.Petka 'KOLIBA" d —. -—;__ ~ K, jutnica - – e= — MNJ -, VOGOXEN Me / - Š d ) J —jječar ·. o » u ~ . KPATyJEBAL N • E Z Caee – o e ž PAREBO. - e e a j \Niš -a KPyUJEBAU — Ć — A | OB EO -A NI ~ e -) u ap KGcCeCXA ...
... Badzr==== ·. NaH.——~ o PFošel = | a | as e= — NB ———> ,, - |l ·......_._..... POIJE PR E ——— i [7 “ ” “ u o || ) liti |. N_ e || a es a .:ma - :] [= Cumika 2. Teonmomia Kapra acnarHBaHor no/ipyuja – npepabeHo npea OLK 1:100 000 mucr IIapahaH, (Jlonuh u np., 1978) a mcr BojbeBau (BecenaHoBuh u np ...
... pajla; • a 3aBDpHIHH pa y HeMMHH HH y JeJIOBHMa Huje OMO HpenmoxeH 3a CrMIIAMĐ»e Npyre JUHIITIOME Ha CTy)HjCKHM HiporpaMHMMa Pynapcko-reomomrKor (pakynreTa HMH Ipyrax BHCOKOIIIKOJICKHX yCTaHOB2a; • a cy pe3yjrraTrH KODpeČKTHO HaBECJICHH H • a HHCaM KpHHO/Ha ayTOpcKa rpaBa H KOpHcTHoO/a HHTeJTeKTyaJIHy ...Андреј Марковић. Петрологија црвених пешчара источне Србијe, 2024
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Life Cycle Assessment of Individual Wood Biomass Heating Systems in Households
The use of solid fuels (wood biomass and coal) for heating of households continues to be common practice within European countries. Solid fuel combustion in households contributes more than 46% to total emissions of fine particulate matter. In this study, a life-cycle assessment (LCA) of firewood-based and pellet-based heating systems is performed. These two systems represent two different types of individual wood biomass heating systems. In the case of the firewood-based heating systems, it is analyzed a typical stove ...... over 54 pellet production facilities were actively operating [7]. To obtain a comprehensive analysis of the environmental impact of heating systems (HSs) based on wood biomass, a complete lifecycle process that involves a holistic cradle-to-grave assessment approach is recommended [8]. The life ...
... systematically analyzes pollution and resource connected to delivering a specific product or service. As such, the LCA identifies environmental hot spots and enables a comparison of different energy sources and HSs for households [11]. A systemized framework for conducting LCAs was released by the Int ...
... Ivezić. Marija Živković 430 However, since LCA considers the environmental aspects and the potential impacts of a product or a service system throughout its life, it becomes a very useful method for researching studies related to the problem of sustainable development, cleaner production, energy ...Boban Pavlović, Dejan Ivezić, Marija Živković. "Life Cycle Assessment of Individual Wood Biomass Heating Systems in Households" in 5th International Scientific Conference ”Conference on Mechanical Engineering Technologies and Applications” COMETa2020, East Sarajevo, 2020, University of East Sarajevo, Faculty of Mechanical Engineering East Sarajevo (2020)
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Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach
Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2021)Poor water solubility of new chemical entities is considered as one of the main obstacles in drug development, as it usually leads to low bioavailability after administration. To overcome these problems, the selection of the appropriate formulation technology needs to be based on the physicochemical properties of the drug and introduced in the early stages of drug research. One example of the new potential drug substance with poor solubility is DK-I-60-3, deuterated pyrazoloquinolinone, designed for the treatment of various neuropsychiatric ...... For this analysis, around 2 mg of the unprocessed substance was heated to 330 ◦C, with a heating rate of 20 ◦C/min, then cooled to 25 ◦C with a cooling rate of 40 ◦C/min and finally heated again to 330 ◦C with a heating rate of 10 ◦C/min. The measurements were conducted under nitrogen flow (50 mL/min) ...
... Fisher Scientific Inc., Madison, WI, USA), coupled to a triple quadrupole mass spectrometer TSQ Quantum Access MAX (Thermo Fisher Scientific Inc., Madison, WI, USA) with a heated electrospray ionization (HESI) interface. The samples were in- jected in a volume of 10 µL. The separation was performed on the ...
... ; Knutson, D.E.; Ðoković, J.B.; Kremenović, A.; Dobričić, V.D.; Randjelović, D.V.; Pantelić, I.; Cook, J.M.; Savić, M.M.; et al. Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach. Pharmaceutics 2021, ...Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić. "Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach" in Pharmaceutics, MDPI, Basel, Switzerland (2021). https://doi.org/10.3390/pharmaceutics13081188
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Understanding partitioning of deformation in highly arcuate orogenic systems: Inferences from the evolution of the Serbian Carpathians
Nemanja Krstekanić, Liviu Matenco, Marinko Toljić, Oleg Mandić, Uroš Stojadinović, Ernst Willingshofer (2020)... tensors (Figs. A.1, A.2 and Table A.1 of the Supplementary Appendix) by following a standard inversion approach with confidence criterion (e.g., Angelier, 1994; Angelier and Goguel, 1979; Angelier and Mechler, 1977; Delvaux and Sperner, 2003 and references therein) and allowing a slip tolerance of ...
... 1309–1318. Antić, M.D., Kounov, A., Trivić, B., Wetzel, A., Peytcheva, I., von Quadt, A., 2016a. Alpine thermal events in the central Serbo–Macedonian Massif (southeastern Serbia). Int. J. Earth Sci. 105, 1485–1505. Antić, M., Peytcheva, I., von Quadt, A., Kounov, A., Trivić, B., Serafimovski, T ...
... Tisza–Dacia plate. Glob. Planet. Chang. 103, 82–98. De Vicente, G., Regas, R., Muñoz-Martín, A., Van Wees, J.D., Casas-Sáinz, A., Sopeña, A., Sánchez-Moya, P., Arche, A., López-Gómez, J., Oláiz, A., Fernandez Lozano, J., 2009. Oblique strain partitioning and transpression on an inverted rift: ...Nemanja Krstekanić, Liviu Matenco, Marinko Toljić, Oleg Mandić, Uroš Stojadinović, Ernst Willingshofer. "Understanding partitioning of deformation in highly arcuate orogenic systems: Inferences from the evolution of the Serbian Carpathians" in Global and Planetary Change, Elsevier BV (2020). https://doi.org/10.1016/j.gloplacha.2020.103361
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Determination of Mechanical Properties of Altered Dacite by Laboratory Methods
This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...... were performed on a hydraulic compression testing frame with sufficient pressure capacity and capable of applying a force perpendicular to the specimen base. UCS is calculated according to the following equation: σci UCS = P/A (1) where: P—maximum force at the moment of failure, A—specimen’s cross-section ...
... the composite sample equals the strength was a. of the uniform AD sample was at a percentage of 30% AD. Comparison of the obtained exponential Citation: Rupar, V.; CebaSek, V.; . . . . Milisavljevié, V; Stevanovié, D, equation with practical suggestions shows a good correspondence. The suggested methodology ...
... with a diameter of 54 mm with a ratio of height and diameter of 2:1 were formed. In total, 60 specimens were prepared for laboratory tests, 30 for UCS tests, and 30 specimens for triaxial tests (Figure 5). Minerals 2021, 11, 813 6 of 19 Figure 5. Composite specimens prepared for testing: (a) UCS ...Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović. "Determination of Mechanical Properties of Altered Dacite by Laboratory Methods" in Minerals, MDPI AG (2021). https://doi.org/10.3390/min11080813
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Towards Sustainable Management of Transboundary Hungarian-Serbian Aquifer
Zoran Stevanović, Peter Kozák, Milojko Lazić, Janos Szanyi, Dušan Polomčić, Balazs Kovács, Jozsef Török, Saša Milanović, Bojan Hajdin, Petar Papić (2011)... [10]. 4.9.5 Conclusion For this proiect numerous activities were undertala local waterworlcs encluiry field survey and measurements, the establishment of a GW monitoring network, the creation of a GW initial database, common workshops and seminars for local capacity building, and wa ...
... Great Hungarian Basin) represents a geographicai and geological entity that spreads over the territory ofseveral countries. The central | ,,, il i *ti':i !l:i!lr::l llr,:ir',. 'lii l:l' : i::,;!l ritl ::lli;' ;:iiii li:i till: j l.,tt,:ii:l.i.r!:i:.i, ,,:t .,a::.: ::::iia:); t: ""#d? ,& x' ...
... 1). The Pannonian basin is a typical lowland, whose height above sea level is mainly 70-720 m. The flat relief features various geoiogical structures, such as loess plateau, loess terraces and alluvial plains, and small depressions in between prevai[. The region has a moderate continental climate ...Zoran Stevanović, Peter Kozák, Milojko Lazić, Janos Szanyi, Dušan Polomčić, Balazs Kovács, Jozsef Török, Saša Milanović, Bojan Hajdin, Petar Papić. "Towards Sustainable Management of Transboundary Hungarian-Serbian Aquifer" in Transboundary Water Resources Management - A Multidisciplinary Approach, Weinheim, Germany : Wiley-VCH (2011): 143-149
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Примена нумеричких метода у моделовању тецишта са освртом на различите реолошке услове
Јелка Крушић (2023)Тецишта су комплексне појаве нестабилности које захтјевају истраживања и испитивањакоја до сада нису рађена код нас у области геотехнике. По механизму, начину активирањаи понашању покренутог материјала се знатно разликују од клизишта. Циљ оведисертације је била примјена нумеричких модела пропагације тецишта на примјеру двијепојаве које су се десиле у Србији као посљедица дјеловања циклона Тамара. Детаљноистраживање тецишта подразумијева теренско картирање, теренска истраживања илабораторијска испитивања одабраних узорака са терена. Од теренских истраживања напримјеру тецишта Селанац урађена су геофизичка истраживања Електричнетомографије док ...тециште, нумерички модели пропагације, циклон Тамара, геофизичка истраживања, лабораторијска испитивања, Селанац, Лева река, RAMMS, SPH geoflow, реолошки моделЈелка Крушић. Примена нумеричких метода у моделовању тецишта са освртом на различите реолошке услове, Београд : Универзитет у Београду, Рударско - геолошки факултет, 2023
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A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia
When assessing the potential of renewable energy alternatives for electricity generation, it is necessary to implement a multi-perspective approach that includes economic, technical, environmental, and socio-political criteria. For the evaluation of criteria and alternatives, the Fuzzy Analytical Hierarchy Process (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a fuzzy numerical value scale for the assessment of expert judgments and energy indicators provides a more sensitive ...... and reservoir hydropower plants, over a wide range of ca- pacities. The most common type of hydroelectric power plant uses a dam on a river to store water in a reservoir. Some hydroelectric power plants just use a small canal to direct the river water through a turbine. • PV power plants — This includes ...
... decomposing the complex objective of the study into a hierarchical structure and for dealing with uncertainty in a decision-making process, FAHP appeared to be a useful tool. FAHP combines the fuzzy theory and the AHP method. The AHP method structures a problem hierarchically, descending from an objective ...
... Belgrade, Serbia a r t i c l e i n f o Article history: Received 14 December 2020 Received in revised form 27 January 2021 Accepted 4 February 2021 Available online xxxx Keywords: Electricity generation Renewable energy sources Multi-criteria decision analysis Serbia a b s t r a c t When assessing ...Boban Pavlović, Dejan Ivezić, Marija Živković. "A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia" in Energy Reports, Elsevier BV (2021). https://doi.org/10.1016/j.egyr.2021.02.072
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Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics
Maja Milošević, Predrag Dabić, Sabina Kovač, Lazar Kaluđerović, Mihovil Logar. "Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics" in Clay Minerals, Mineralogical Society (2019). https://doi.org/10.1180/clm.2019.49
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Atmospheric exposure vs burying: influences on damage intensity of built-in kersantite in the monument of the Small Staircase (Belgrade, Serbia)
Proučavan je efekat „zatrpanog kamena“ na intenzitet procesa degradacije prisutnih na kersantitu koji je ugrađen u spomenik Malo stepenište. Istraživanja su vršena na uzorcima stene iz kamenoloma i na oštećenim kamenim blokovima ugrađenim u spomenik. Dok su neki delovi stepeništa bili pod zemljom 90 godina, većina kamenih elemenata je bila izložena različitim uslovima sredine i antropogenim uticajima. Urađeno je detaljno mapiranje trenutnog stanja spomenika kako bi se istražio uticaj “zatrpavanja” i kompleksne geometrije spomenika na tip propadanja i variranje ...Nevenka Novaković, Predrag Dabić, Vesna Matović. "Atmospheric exposure vs burying: influences on damage intensity of built-in kersantite in the monument of the Small Staircase (Belgrade, Serbia)" in Environmental Earth Sciences, Springer Science and Business Media LLC (2023). https://doi.org/10.1007/s12665-023-10794-6