Претрага
1575 items
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Numerical modelling of the roughly simultaneous emplacement of two distinct ophiolite belts
Nikola Stanković, Vesna Cvetkov, Vladica Cvetković. "Numerical modelling of the roughly simultaneous emplacement of two distinct ophiolite belts" in 5th Congress Geologists of the Republic of North Macedonia, Ohrid, 28-29. 10. 2024, Македонско геолошко друштво (2024)
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Regional Slope Stability Analysis in Landslide Hazard Assessment Context, North Macedonia Example
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
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Production of electricity from coal-fired power plants and accompanying CO2 emissions: comparison of EU-27 and US
Even in the third decade of the 21st century, large power plants are still responsible for more than half of the electricity production in Europe and US. They predominantly use fossil fuels in their work, which results in the emission of pollutants into the air, soil and water. In addition to the production of electric energy, fossil fuels, including coal, are used for industrial purposes. Although the use of coal, especially in the countries of the European Union, is ...... pr od uc ti on [% ] NE-U- .F T.E B SB- OB OB .BO""BS OB :Ba"0"| a aBšš e )0)00] 95 2855d45S E I I I 2R IR e a 88,868888B8B8aBaaBBSB BBB BSBaVBT.a s eee q a tca Flectricity generation from coal —Coal [%] Figure 4. EU-27 electricity ...
... eo w i e T T n o u 00 miuČ- O T W i m TO O ~ 0 O O a eNeon E:o:u: ' o e i e oč reeo oeezkžjjBNj“”oZa B e e e eoeo>o S Wwe e esA Č e!đ e RT NTe ı.I I K TTKR OT G Figure 2. Ratio of specific electricity production in EU-27 a US Nevertheless, based on the strategic orientations ...
... rather different for EU and US. In the countries of the EU-27, there is a noticeable trend of decreasing CO>» emissions since 1990, while in the USA, during the 90s of the last century, CO» emissions grew intensively with a peak that maintained its values in the first decade of the 21st century ...Uroš Djorgovski, Aleksandar Madžarević, Predrag Jovančić. "Production of electricity from coal-fired power plants and accompanying CO2 emissions: comparison of EU-27 and US" in International Conference on Global Energy and Climate Change - ICGRECC-23, New York, 2023, Research Galery- Science Leagues (2023)
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A Variant of Sharma-Aroras Optimal Eighth-Order Family of Methods for Finding A Simple Root of Nonlinear Equation,
Ćebić Dejan, Paunović Marija, Ralević Nebojša. "A Variant of Sharma-Aroras Optimal Eighth-Order Family of Methods for Finding A Simple Root of Nonlinear Equation," in IEEE 16th International Symposium on Intelligent Systems and Informatics (SISY) (2018): 81-96. https://doi.org/ 10.1109/SISY.2018.8524857
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From post-disaster landslides inventory to open landslides data
Biljana Abolmasov, Miloš Marjanović, Uroš Đurić, Jelka Krušić. "From post-disaster landslides inventory to open landslides data" in Proceedings of 3rd European Regional Conference of IAEG/ Athens/ Greece/ 6-10 October 2021, International Association for Engineering Geology and the Environment (2021)
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Strain Partitioning Around an Indenter During Oroclinal Bending: Inferences From Field Kinematic Study And Analogue Modeling with Application to the European Carpatho-Balkanides Orogen
Nemanja Krstekanić, Liviu Matenco, Ernst Willingshofer, Marinko Toljić, Uroš Stojadinović. "Strain Partitioning Around an Indenter During Oroclinal Bending: Inferences From Field Kinematic Study And Analogue Modeling with Application to the European Carpatho-Balkanides Orogen" in AGU Fall Meeting 2021, New Orleans, USA, 13.-17.12.2021., AGU (2021)
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Техно-економска оцена подземног откопавања лежишта бакра применом коморно-стубне методе
Александра Бараћ (2024)Коморно-стубна метода са блоковским откопавањем и засипавањем откопа паста засипом омогућује високу продуктивност, флексибилност при раду, остварење пројектованог производног задатка, минимално осиромашење откопане руде, у овом случају руде бакра, висок степен искоришћења расположивих рудних резерви. Припрема лежишта за експлоатацију представља инвестицију у рударској производњи,а сам коначан производ треба ,не само да отплати те трошкове, већ и да донесе новчану добит.Самим тим је од великог значаја адекватан одабир методе откопавања, која ће на најбољи могући начин испунити све захтеве.Основни показатељи ...... pa3pajta JIeKHITA.aaaaaaa a aaaaaanaaaaaaaaaaaaateot 20 3.3 TexHojoruja H3pajie IpocTopHja alynaaaaa a aaaaaaaanaeoaaateavaaateot 21 3.3.1 · Bymrepbc H MHHMHPpaHbC lyy anaaaaaaaaaaaaaaaaaaa a aaaeeeaaaeaeaatttet 24 3.3.2 Berunamja, nonrpaljaBapbe H OJBOJUĐaBaBbG.aaaaaaaaa a aaanaeaaanatek 25 4. ...
... 42.2 | NroBap H TpaHCHOPT.......aa a aaaanaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaatt tt 34 42.3 CraOMJHocT H NHMCH3HOHHCaMbC OTKOII4.........aaaa da adduidtaı 35 42.4 · JamyMaBaMbec OTKOHaHOr HIpOcTOpa IacTa 3aCHTIIOM .. naaaaanaaattek 36 42.5 · Bepramanja a aaaaaaa a aaaaaaaaaaaaaaaaaaaatatet 36 4.2 ...
... cBaky HojeyuHauHy IIipoOy ToO cy a OH ce ojipe/uanmo yuemrhe cynd(bunHor H cyn(aTHor cyMnopa y py)a pyyiHor Tena, npo0e 83 OymorTuHa B-20 u B-28 aHamasaHpaHe cy H Ha cyndMHHM H cyndQarHM cyMmop (406 aHanwa). Cyndunnu cyMnop Je y OymoruHu B-20 aacryrubeH ca 58%, a cyndaTHu ca 42% Jok Je y OymoTuHH ...Александра Бараћ. Техно-економска оцена подземног откопавања лежишта бакра применом коморно-стубне методе, 2024
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Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit
... To determine the parameter n, the La- grange’s theorem will be used, which states: Let f(x) be a function continuous to [a,b] and differentiable on an interval (a, b). Then there is at least one c, a < c < b, for which it is: cf ab afbf . In this case, given that the velocity is continuous ...
... amount of explo- sive, a distance from the blast site, character- istics of the rock material and a type of blast- ing, the equation of M.A. Sadovski, where the oscillation velocity v is given in the form of of the function, is most frequently used: n RKv , where R is a reduced distance, and K ...
... relationship is accepted as a good one. Model 2: ρ2 = 0.8513 – for 11 values (there is a strong correlation between R an v, given in the formula (23)). εmax2 = 0.1309; S2 = 0.0577; 3S2 = 0.1713 εmax2 < 3S2 (supposed functional rela- tionship is accepted as a good one). 5 CONCLUSION ...Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić. "Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit" in Mining and Metallurgy Engineering Bor, Bor : Mining and Metallurgy Institute Bor (2015). https://doi.org/10.5937/MMEB1503053L
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Moho Depth Determination of the Adriatic Sea Region Using a New Bouguer Anomaly Database
Tassis G.A., Papazachos C.B., G.N. Tsokas, I.N. Tziavos, Vasiljević Ivana, Stampolidis A.. "Moho Depth Determination of the Adriatic Sea Region Using a New Bouguer Anomaly Database" in 8th Congress of the Balkan Geophysical Society, Chania, Greece:Balkan Geophysical Society (2015). https://doi.org/10.3997/2214-4609.201414213
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Fission-track constraints on the thermal evolution of the Serbo-Macedonian Massif (south Serbia, southwest Bulgaria and east Macedonia)
Antić, M., Kounov A., Trivic B., Peytcheva I., von Quadt A., Gerdjikov I.. "Fission-track constraints on the thermal evolution of the Serbo-Macedonian Massif (south Serbia, southwest Bulgaria and east Macedonia)" in 10th Swiss Geoscience Meeting, Bern, Switzerland, 16-17 November 2012, Abstract Volume, Bern: (2012): 65-65
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Dosadašnja saznanja o bijelim boksitima na prostoru Crne Gore
Mia Jovanović, Slobodan Radusinović, Vladimir Simić. "Dosadašnja saznanja o bijelim boksitima na prostoru Crne Gore" in Geološki glasnik (2023)
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The Flow Conditions in the Epikarst Zone of a Karst Aquifer. Case Study: Suva planina Mt., East Serbia
Branislav Petrović (2022)The epikarst as a part of the karst aquifer represents a complex point of contact and mixing of unconsolidated material from the terrain surface, carbonate rocks altered by “corrosive” water, flora and fauna (and remains of), which is partially saturated with groundwater. Recharge of karst aquifers, usually, occurs via the unsaturated zone which uppermost part could be epikarst zone. Significant amounts of (plant accessible) water, and other solutes and particles, can be stored in this zone for extended periods ...Branislav Petrović. "The Flow Conditions in the Epikarst Zone of a Karst Aquifer. Case Study: Suva planina Mt., East Serbia" in International Scientific Conference - Man and Karst 2022, Custonaci, Italy, 12-16.09.2022, Gruppo Grotte Ragusa - C.I.R.S. (2022)
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Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija
Aleksandar D. Krstić, Aleksandar Đ. Lolić, Marija A. Ilić, Aleksandar M. Mijatović, Snežana J. Zlatanović, Zoran P. Nedić, Vesna M. Pavelkić (2015)Biougalj se dobija pirolizom iz organskog otpada. Smatra se ,,modifikatorom'' zemljišta i koristi se kao đubrivo i kao rezervoar za skladištenje ugljenika. Kvantifikacija funkcionalih grupa je važna zbog hemijske reaktivnosti biougljeva koji imaju uticaj na svojstva zemljišta. U istraživanju su korišćena 3 uzorka biouglja različitog porekla i jedan referentni, aktivni ugalj. Sadržaj kiselih funkcionalnih grupa je određivan titracijom po Boehm-u na dva načina: uvođenje N2 tokom titracije i tretman sa BaCl2. Optimizovan je način pripreme tri Boehm ova rastvora ...... efficiency this methods, spectrofotometry is used at a wavelenght of 250 nm. ‘This work was funded by the Ministry of Education, Science and Technological Development od the Republic of Serbia, Project No. 172051 Reference 1. Rivka B. Fidel, David A. Laird, Michael L. Thompson, Journal of Environmental ...
... Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija Aleksandar D. Krstić, Aleksandar Đ. Lolić, Marija A. Ilić, Aleksandar M. Mijatović, Snežana J. Zlatanović, Zoran P. Nedić, Vesna M. Pavelkić Дигитални репозиторијум Рударско-геолошког факултета Универзитета ...
... Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija | Aleksandar D. Krstić, Aleksandar Đ. Lolić, Marija A. Ilić, Aleksandar M. Mijatović, Snežana J. Zlatanović, Zoran P. Nedić, Vesna M. Pavelkić | 52. savetovanja Srpskog hemijskog društva | 2015 | | http://dr ...Aleksandar D. Krstić, Aleksandar Đ. Lolić, Marija A. Ilić, Aleksandar M. Mijatović, Snežana J. Zlatanović, Zoran P. Nedić, Vesna M. Pavelkić. "Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija" in 52. savetovanja Srpskog hemijskog društva, Srpsko hemijsko društvo (2015)
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Језички модели, шта је то?
Михаило Шкорић (2023)Михаило Шкорић. "Језички модели, шта је то?" in Језик данас, Нови Сад : Матица српска (2023)
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Measurement of Compressive Forces on the Rolls of a Pipe Conveyor by Action Various Tensile Forces in a Conveyor Belt
Michalik Peter, Molnár Vjeroslav, Fedorko Gabriel, Ristović Ivica. "Measurement of Compressive Forces on the Rolls of a Pipe Conveyor by Action Various Tensile Forces in a Conveyor Belt" in Metallurgy 2 no. 49, Zagreb, Croatia:Croatian Metallurgical Society (CMS) (2010): 381-384
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Analysis of the Influence of Burden Deviation from the Designed One on the Intensity of the Blast Vibration
Stefan Milanović, Lazar Kričak, Milanka Negovanović, Nikola Simić, Jovan Marković, Nikola Đokić (2023)This paper presents an analysis of the influence of burden deviation from the designed one on the intensity of blasting vibrations through the use of laboratory and field examinations. By definition, the burden represents the shortest distance from the axis of an explosive column charge to the free surface. It should be measured along the entire hole length, although, in practice, it is often measured only on the bench surface as the shortest distance from the axis of the ...Stefan Milanović, Lazar Kričak, Milanka Negovanović, Nikola Simić, Jovan Marković, Nikola Đokić. "Analysis of the Influence of Burden Deviation from the Designed One on the Intensity of the Blast Vibration" in Applied Sciences, MDPI AG (2023). https://doi.org/10.3390/app132312837
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Some models for determination of parameters of the soil oscillation law during blasting operations
... accepted as a good one. ‚ For model 2: ρ2 = 0.9893 (there is a strong correlation between R and v, given in Equation (29)). εmax2 = 0.1147, S2 = 0.0550, 3S2 = 0.1650. εmax2 < 3S2 (the supposed functional relationship is accepted as a good one). ‚ For model 3: ρ3 = 0.9887 (there is a strong correlation ...
... accepted as a good one). ‚ For model 2: ρ2 = 0.9852 (there is a strong correlation between R and v, given in Equation (32)). εmax2 = 0.1541, S2 = 0.0535, 3S2 = 0.1606. εmax2 < 3S2 (the supposed functional relationship is accepted as a good one). ‚ For model 3: ρ3 = 0.8768 (there is a strong correlation ...
... Surface S confined by continuous curve y = f (x), x-axis, and vertical lines x = a and x = b, if f (x) ě 0 for a ď x ď b (Figure 1), as the definite integral of the function f (x), obtains the following: S “ b ż a f pxq dx (17) Energies 2016, 9, 617 5 of 15 ...Suzana Lutovac, Dragan Medenica, Branko Gluščević, Rade Tokalić, Čedomir Beljić. "Some models for determination of parameters of the soil oscillation law during blasting operations" in Energies, Basel, Switzerland : MDPI (2018). https://doi.org/10.3390/en9080617
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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 ...... modernization of the railway, there was a need, for various reasons, to build substructure of the railway as high quality as possible, whether it is the reconstruction, rehabilitation of the existing or construction of a new one. As a consequence, there is a significant control of construction, especially ...
... speeding up the testing process with a clear procedure that includes compliance with existing regulations. LITERATURE [1] Instructions 338 were adopted for the control of compaction of the substrate of railway tracks by the dynamic method with a device with a light falling weight on the JŽ railway ...
... industrial rails 0,97 80 U>15 40 0,95 45 GU,GP,GW, GF,SP,SW all other soil types 30 25 M a i n t e E x i s t i V >160 km/h 0,97 80 U>15 40 0,95 45 GU,GP,GW, GF,SP,SW all other soil types 30 25 n a n c e n g km/h 0,95 50 U>15 35 0,93 20 GU,GP,GW, GF,SP,SW all other soil types 25 20 *in ...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)
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Примена CNC машина при обради мермера
Ненад Остојић (2024)Мермер је стена настала метаморфизмом седиментних карбонатних стена, најчешће кречњака или доломита. Мермер се углавном састоји од калцита,кречњака, серпентина и доломита. Његове главне компоненте су углавном калцијум карбонат, који чини више од 50 посто, и други магнезијум карбонат, калцијум оксид, манган оксид и силицијум диоксид, итд. Фазе обраде мермера су: примарно резање мермерних блокова у плоче, површинска обрада мермерних плоча, секундарно резање мермерних плоча, терцијарна обрада (ако је потребно). CNC машина је електро-механички уређај који управља алатима, користећи програмирање путем ...... aaaaaa a anaaaaaaaaaaaaaanatt 97 3.7.4. CNC wattHa ca 3 oce al aaaaaaaaoaaaaaaaaaaaagaaagaaatati t 99 3.7.5. CNC watmmua 3a rpaBHipaĐ»e CIIOMCHHKA...aaaaaaa a aaaaaaatantt 99 3.7.6. CNC vammnua 3a MepMep H rpaHur QSQJ-2500-16 .......aaaaann... 100 4. SAKJPVIAK...Ln a ananaaaaaoaeaaa a aaaaaa ...
... HHcTpyKnuja noTpeOnux a OuH ce rpeBezna ojpebeHa oOpajna, HaaHBa ce CNC rnporpaw. /la:bHM pa3BOJeM, a Hnpe cBera y OOJacTH KOMINJyTECpCKe TeXHOJIOTHJE, HOCTHTHyT jc Harnpe)jnak H yOpao Je rpe,icraBJbeHa HoBa reHepatnuja MamuHa, a To cy CNC amuue . OcHopBHe pa3anmike HaMeby CNC a NC amuna: IIoroH ...
... 9XHBOTHy CpeJIHHy...aaaaaaaaaaaaaaa a aaaaaananaeaaeaaaaabatatae 22 1.6. MepwMep...aaadaaaaaaaa a aaoanaanaaoaaaaaaaaaaaaaaaaaogaaeyaaagaaaaataaovevv 23 1.6.1.KapakrepacTHKe MEPMOPpa ... aaaaaaaaaaaaaaaaaaagaaabavaı 25 2. OIIIITH JIEO .........čaaaaaaaaaanaaaaaaaaa a veeeaaaaataeakataiaataNabaNe 28 ...Ненад Остојић. Примена CNC машина при обради мермера, 2024
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Structural transformations of hydrothermaly synthesized a-Li2-xTiO3-0.5x•(H2O)y - Структурне трансформације хидротермално синтетисаних a-Li2-xTiO3-0.5x•(H2O)y
Veljković Ivana, Poleti Dejan, Karanović Ljiljana, Rogan Jelena. "Structural transformations of hydrothermaly synthesized a-Li2-xTiO3-0.5x•(H2O)y - Структурне трансформације хидротермално синтетисаних a-Li2-xTiO3-0.5x•(H2O)y" in XVIII Konferencija Srpskog kristalografskog društva, Izvodi radova, Andrevlje, Srbija:Srpsko kristalografsko društvo (2011): 34-35