Претрага
577 items
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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 материјалимаDarko Bozovic, Vladimir Simic, Dragan Radulovic, Slobodan Radusinovic, Vesna Matovic, Anja Terzic. "Geochemical evaluation of dolostone deposits in Montenegro: Implications for potential industrial applications" in Science of Sintering, Bor, August 2024, National Library of Serbia (2024). https://doi.org/10.2298/SOS240701029B
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Природни потенцијал минералних вода Србије - Natural potential of mineral waters in Serbia
Оливера Крунић (2021)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)
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Strain partitioning around an indenter during oroclinal bending: kinematics of the Circum-Moesian fault system of the Carpatho-Balkanides
Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga (2021)... Carpathians, while in the south-west the Sokobanja-Zvonce and Rtanj-Pirot faults splayoff the Timok Fault. These two faults are connected by coeval E-W oriented normal faults thatcontrol several intra-montane basins and accommodate orogen-parallel extension. We infer thatall these deformations are driven ...Nemanja Krstekanić, Liviu Matenco, Uroš Stojadinović, Ernst Willingshofer, Marinko Toljić, Daan Tamminga. "Strain partitioning around an indenter during oroclinal bending: kinematics of the Circum-Moesian fault system of the Carpatho-Balkanides" in EGU General Assembly 2021, Vienna, Austria, 19.-30.4.2021., EGU (2021)
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Balance between tectonics and sedimentation during geodynamic evolution of the Adria-Europe convergence zone in central Serbia
... trench turbidites observed in theLjig Formation. The onset of the latest Cretaceous–Paleogene Adria-Europe continental collision resulted in large-scale W-wards thrusting that inverted the Cretaceous basins along NE Dinarides margin andemplaced sedimentary infill and basement of the European fore-arc over ...Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić, Tamara Bogdanović. "Balance between tectonics and sedimentation during geodynamic evolution of the Adria-Europe convergence zone in central Serbia" in EGU General Assembly 2021, Vienna, Austria, 19.-30.4.2021., EGU (2021)
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Alpine tectonic evolution of the Northern Serbo-Macedonian subunit: inferences from kinematic and petrological investigations
... Neogene sediments in the western-central partof the Morava Valley Corridor, was induced by corrugated detachment faults during theOligocene–Miocene E-W oriented Dinaridic extension. Powered by TCPDF (www.tcpdf.org) http://www.tcpdf.org ...Bojan Kostić, Uroš Stojadinović, Nemanja Krstekanić, Marija Ružić, Aleksa Luković. "Alpine tectonic evolution of the Northern Serbo-Macedonian subunit: inferences from kinematic and petrological investigations" in EGU General Assembly 2021, Vienna, Austria, 19.-30.4.2021., EGU (2021). https://doi.org/10.5194/egusphere-egu21-202
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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 ...... 14000 j US average: 13061 kWh/c 12000 j 10000 j 8000 j EU-27 average: 6492 kWh/c 6000 4000 j 2000 j ——LFU-27 <——=US 0 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“”oZo S Wwe e esA Č e!đ e RT NTe ...
... Nordrhein- :. Weisweiler Germany Westfalen 14500 Lignite 1595 9,09 3400 1,08 Monroe US Michigan 14263 | Subbituminous/| ~ 0y 4,33 4722 0,97 Bituminous W A Parish US Texas 13795 Subbituminous 4008 3,44 4817 0,93 Martin Lake US Texas 13413 Lignite/ 2380 5,64 3180 1,02 Subbituminous Gen]M US Ohio 13386 ...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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Geodynamics of basins above subducted slabs: An integrated modelling study of tectonics, sedimentation, and magmatism in the Timok Magmatic Complex
Uros Stojadinovic, Marinko Toljic, Branislav Trivic, Radoje Pantovic, Danica Sreckovic-Batocanin, Nemanja Krstekanic, Bojan Kostic, Milos Velojic, Jelena Stefanovic, Nikola Randjelovic, Maja Males (2024)Uros Stojadinovic, Marinko Toljic, Branislav Trivic, Radoje Pantovic, Danica Sreckovic-Batocanin, Nemanja Krstekanic, Bojan Kostic, Milos Velojic, Jelena Stefanovic, Nikola Randjelovic, Maja Males. "Geodynamics of basins above subducted slabs: An integrated modelling study of tectonics, sedimentation, and magmatism in the Timok Magmatic Complex" in Annales geologiques de la Peninsule balkanique, National Library of Serbia (2024). https://doi.org/10.2298/GABP240116003S
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Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)
Mt. Avala is located on the southern margin of the Pannonian basin (SPB), a border zone between the uplifted morphostructures of the Dinarides and Carpathian-Balkanides. Similar to the Pannonian basin, tectonostratigraphic evolution of the Mt. Avala area during the last 23 Ma has is characterized by syn- and post-rifting processes as well as tectonic inversion. Here, we present the results of field investigations of the Miocene‒Pliocene dynamics that led to different spatial positions of the same stratigraphic units (e.g. ...... PALCU, D., MANDIC, O. & KRIJGSMAN, W. (2017): Changing seas in the Early–Middle Miocene of Central Europe: a Mediterranean approach to Paratethyan stratigraphy.‒ Terra Nova, 29, 273–281. doi: 10.1111/ter.12273 SANT, K., MANDIC, O., RUNDIĆ, LJ., KUIPER, K. & KRIJGSMAN, W. (2018): Age and evolution of ...
... elevated since the early Upper Miocene (Fig. 1). Uplift of the Torlak block was probably controlled by the NE– SW striking Torlak fault as well as the E–W directed Rakovica fault and its segments (Figs.17 and 21). This structure defines the northern edge of the Beli Potok trough which repre- sents the ...
... smaj Mountain (MAROVIĆ & KNEŽEVIĆ, 1985). Its signifi- cant differentiation begins in the early Sarmatian when, follow- ing the faults of NE-SW and E-W directions, the subsidence and formation of smaller bays and troughs flooded by the waters of Paratethys were carried out. Such characteristics are ...Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević, Miloš Radonjić. "Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)" in Geologia Croatica (2019). https://doi.org/10.4154/gc.2019.11
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Geotermalne karakteristike područja Semberije , Republika Srpska
Igor Glavaš (2024)Cilj završnog rada predstavlja, opis geotermalnih karakteristika područja Semberije, Republika Srpska, BiH.Rad se sastoji od opšteg dijela u kojem se navode osnovne karakteristike područja (geomorfološke, geografske, hidrološke,hidrometeorološke, geološke, tektonske i hidrogeološke) i specijalnog dijela koji detaljnije ulazi u tematiku osobina geotermalne energije i njihovih karakteristika u zadatom području kao i definisanje geotermalnog potencijala koje to područje ima.Sa prognoznim litološkim profilima 6 dubokih istražnih bušotina su izrađena 2 regionalna geološka, a njegovom konverzijom i hidrogeološka profila na osnovu kojih je, stečena ...... su: glina 0.8 W/mK, pijesak 1.6 W/mK, glinoviti laporac 1.2 W/mK, škriljci 2 W/mK, krečnjak 2.3 W/mK, dolomit 3.4 W/mK i slično. Ponderisanjem vrijednosti toplotne provodljivosti za odgovarajuće debljine litoloških sredina, dobijena je srednja vrijednost za bušotinu Dv-1 od 2.1 W/mK. Ovi podaci ...
... 19 Tabela 4.2. Geotermalni parametri bušotina na području Semberije Geotermalni Toplotna Toplotni (ĆO) gradijent | provodljivost tok (C/km) (W/mK) (mV/m*?) Bušotina | Dubina | femperatura Do-1 Domaljevac Bij-1 Bijeljina S-1 Dvorovi 4.2.1.Porijeklo i načini prenosa geotermalne energije ...Igor Glavaš. Geotermalne karakteristike područja Semberije , Republika Srpska, 2024
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Процена емисије гасова са ефектом стаклене баште као последице енергетске активности
Горана Остојић (2024)Рад се бави анализом и проценом емисија гасова са ефектом стаклене баште, са посебним акцентом на емисије које настају као последица енергетских активности. Ефекат стаклене баште представља природни процес који је неопходан за одржавање живота на Земљи, али антропогене активности, попут индустријске производње и сагоревања фосилних горива, значајно повећавају концентрацију ових гасова у атмосфери, што доводи до климатских промена. Рад истражује узроке, последице и могућности за смањење емисија гасова, као и развој стратегија за ублажавање негативних ефеката на животну ...емисија гасова, ефекат стаклене баште, енергетске активности, климатске промене, мобилно сагоревање, стационарно сагоревање... NIIA d3 | W W W MTM . MI MI W MI WI W u MAs __KM __O _ |D __ ___ R aŠ — 38G _M __ __ 1 OE a _ MM - 4 le | %45 . %% 30 -- __ _ MMR %5 M8 - _ L NNEF WWNL WWWE WWWNWNL" M -Ms 408 - B - - WNNEF – WNHL WWNF | W -M8 | 408 ____ B k_ _J t_ L_ ı E I ı r " – - - - i —. i - L NE WWN W NE i BO - - ...
... as fuel delivered within that country but used by the militaries of other countries that are not cngaged in muhltilateral operations., -lu - m'g W w NE Emissions from fucls used in multilateral operations pursuant to the Chatter ofthe United Nations. Include emisstons fom fuel deli vered to the ...
... oKkoJmiHa bakTopu) 4.2. MHsO0op akropa eMucuje TIIpakynjbauw momaraKa TpeOa ma Ma3aOecpy mojnpa3yMeBaHe (Tup 1) m crneru()MuHe 3a 3eMJby (Tup 2 w Tup 3) (pakrope eMMHcHJe Ha OCHOBy IIDpHMeHcC OJUIyKa KOje pa3MaTpajy BpCTy H HHBO JegaarperamMje momaTaKa O AKTHBHOCTH JIOCTyIIHHX 3a ĐHXOBJy 3CMJby ...Горана Остојић. Процена емисије гасова са ефектом стаклене баште као последице енергетске активности, 2024
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Geochemical characterization of sediments from the archaeological site Vinča – Belo Brdo, Serbia
Gorica Veselinović, Dragana Životić, Kristina Penezić, Milica Kašanin-Grubin, Nevenka Mijatović, Jovana Malbašić, Aleksandra Šajnović (2020)Gorica Veselinović, Dragana Životić, Kristina Penezić, Milica Kašanin-Grubin, Nevenka Mijatović, Jovana Malbašić, Aleksandra Šajnović. "Geochemical characterization of sediments from the archaeological site Vinča – Belo Brdo, Serbia" in CATENA, Elsevier BV (2020). https://doi.org/10.1016/j.catena.2020.104914
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Fuzzy expert analysis of the severity of mining machinery failure
Mining machinery failure is almost an everyday occurrence. Usually the failures bare certain consequences, which require additional financial costs to repair and restore the system to its operational state. The consequences are viewed through negative and damaging effects a failure has on the machine, health and safety of the employees, work environment, and on the environment. The removal of the consequences of the failure requires additional financial investment, which has a negative impact on the company’s business. In order ...Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković. "Fuzzy expert analysis of the severity of mining machinery failure" in Applied Soft Computing, Elsevier BV (2020). https://doi.org/10.1016/j.asoc.2020.106459
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Structural dissymmetrization of optically anisotropic Grs64±1Adr36±1Sps2 grandite from Meka Presedla (Kopaonik Mt., Serbia)
In this paper, grandite core with Grs64±1Adr36±1Sps2composition was crystallographically studied. This core represents zone A of the macroscopically visiblefive A–E zones of the optically anisotropic Grs58–64 Adr36–42Sps2 grandite. The applied procedure includes the detailed analysis of the powder diffraction patterns, and the Rietveld refinements of the crystal structures in a series of 18 space groups and two mixtures, which were followed by the comparative analysis of the R-values, site occupancy factors, and the bond lengths and angles. Synthesis of all ...Pavle Tančić, Aleksandar Kremenović, Predrag Vulić. "Structural dissymmetrization of optically anisotropic Grs64±1Adr36±1Sps2 grandite from Meka Presedla (Kopaonik Mt., Serbia)" in Powder Diffraction, Cambridge University Press (CUP) (2019). https://doi.org/10.1017/S0885715619000897
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Geomagnetna bura kategorije G5 u maju 2024. godine
Magdalena Marčeva (2024)Zemlja poseduje magnetno polje, koje je generisano u njenom spoljašnjem jezgru. Magnetno polje Zemlje je konstantno izloženo dejstvu sunčevog magnetnog polja i zračenja koje se sa Sunca emituje. Naelektrisane čestice koje pristižu sa Sunca stupaju u interakciju sa magnetosferom, što dovodi do različitih geomagnetnih poremećaja.Geomagnetna aktivnost direktno je proporcionalna intenzitetu sunčevog zračenja koje dolazi do Zemlje. Pod uticajem sunčevog korpuskularnog zračenja dolazi do pojave geomagnetnih bura koje su praćene porastom intenziteta magnetnog polja.Količina i jačina dolaznog sunčevog zračenja zavisi ...... polja koje je izazvalo datu buru bio jJak i da je formiranje prstenaste struje oko Zemlje trajalo kratko. GCK (Grocka, Srbija) | x . H'L/\ WVA W \·/M W -0100 0800 0500 700 000 1100 1300 1500 1700 1900 2100 2300 CLO0 0S0D 0500 G70D 0900 1:00 1300 1500 170D 1900 2L0D 2300 0100 0300 0500 070D 00D 1L0D ...
... (https://images.theconversation.com/files/559181/original/file-20231113-23- 84pk4b.jpg?ixlib=rb- 4.1.O&rect-23%2C4560%2C5136%2C2568&q=45&auto=format&w=1356hn=668&fit-cro PD) Rep magnetosfere Odbijene čestice — Sunčevog vjetra Ulazak čestica Polarni e o Sunčevog vjetra Sloj plazme OtVOrI ...
... indeks (Tročasovni podaci) Početak: Petak, 10. maj 2024. godine 9 II I 9 0 99 ©° \\, 59 9 Đ 9 9 p O b O QQ GQ Q'° „ 99 @\aa)&& \xq,aw(» LAAAR \?w\\a*·m)mo ,@@\ [ o ~ o ~ Kp in de ks o [J [[ N OO - L O N A Universal Time NM Space Weather Prediction Center Slika 5.2.1. ...Magdalena Marčeva. Geomagnetna bura kategorije G5 u maju 2024. godine, 2024
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Can the dynamics of a subducted slab account for the Upper Cretaceous magmatism in the Sava-Vardar Zone and Timok Magmatic Complex? A Numerical Modelling Approach
Nikola Stanković, Ana Mladenović, Dejan Prelević, Vesna Cvetkov, Vladica Cvetković. "Can the dynamics of a subducted slab account for the Upper Cretaceous magmatism in the Sava-Vardar Zone and Timok Magmatic Complex? A Numerical Modelling Approach" in 16th Alpine Workshop, European Geosciences Union (2024)
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An optimal sixteenth order family of methods for solving nonlinear equations and their basins of attraction
Dejan Ćebić, Nebojša Ralević, Marina Marčeta. "An optimal sixteenth order family of methods for solving nonlinear equations and their basins of attraction" in Mathematical Communications (2020)
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Remontni radovi u bušotini sa dubinskom pumpom
Jovana Milošević (2024)Remontni i stimulativni radovi u naftnom inženjerstvu su radovi koji se primenjuju na bušotinama koje su već u proizvodnji ili potencijalno proizvodnim bušotinama, i u zavisnosti od toga imaju različitu svrhu. Remontni radovi predstavljaju sve radove koji su ograničeni na kanal bušotine, dok se stimulativni radovi odnose pribušotinsku zonu.U prvom slučaju remontni i stimulativni radovi kod proizvodnih bušotina služe za otklanjanje problema i povećavanje proizvodnje bušotine. Dok u drugom slučaju, kod potencijalnih bušotina su ovi radovi namenjeni završnim obradama ...... bravom, pakerom sa W gumama, perforirani komad tubinga, G — 3 brava, kompozicija tubinga. (slika 30) Gornji deo G — 3 brave sa tubingom se vadi i postavlja se kompozicija tubinga sa opremom za klipnu dubinsku pumpu. Za svu opremu je potrebno posedovati pasoše. Paker sa W gumama Alat za unakrsnu ...
... unakrsnu cirkulaciju Usadni komad Slika 29, Ugrađivanje Gravel pack-a, pakera sa W gumama i perforirani deo tubinga, sa operacionom opremom 42 Usadni komad Paker sa W gumama Slika 30, Ugrađen gravel pack 43 7.10 PROIZVODNA OPREMA Spušta se proizvodna oprema: gasno sidro, komad tubinga ...
... ventil i ispitati rad pumpe ı hermetičnost ı na kraju je montiran C komad. Klipne šipke Dubinska pumpa · Perforirani tubinga · Paker sa W gumama Usadni komad Slika 31, Ugrađena klipna dubinska pumpa sa gravel pack opremom na dnu, završetak remonta 44 7.11 ZAVRŠETAK REMONTA BUŠOTINE ...Jovana Milošević . Remontni radovi u bušotini sa dubinskom pumpom, 2024
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SrpELTeC: A Serbian Literary Corpus for Distant Reading
U članku je predstavljen SrpELTeC, korpus razvijen u okviru akcije COST Distant Reading for European Literary History (CA16204). Svi romani u SrpELTeC-u su odabrani, pripremljeni i obeleženi korišćenjem zajedničkih principa uspostavljenih za sve jezičke zbirke u Evropskoj zbirci književnog teksta (ELTeC). Navedeni su izazovi i rešenja u pripremi SrpELTeC od nule. Svi romani su ručno kodirani u TEI sa bogatim metapodacima i strukturnim napomenama. Automatska anotacija je uključivala POS-označavanje, lematizaciju i imenovane entitete, oslanjajući se na resurse za obradu ...digital humanities, Serbian literature, text corpora, distant reading , linked data, named entity recognition, text analyticsRanka Stanković, Cvetana Krstev, Duško Vitas. "SrpELTeC: A Serbian Literary Corpus for Distant Reading" in Primerjalna književnost, Research Centre of the Slovenian Academy of Sciences and Arts (2024). https://doi.org/10.3986/pkn.v47.i2.03
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Транспортни систем за руду на површинском копу Бувач
Никола Аџић (2024)У општем делу овог рада ће бити наведени утоварно-транспортни системи, њихова подела и основни елементи. У оквиру тога ће бити детаљније објашњени сви појединачни делови ових система као што су багери, камиони, дробилице и транспортери са траком. Даље ће бити наведени програмски пакети који се користе за прорачун ових система Talpac који се користи за прорачун дисконтинуалног транспорта и Helix који се користи за прорачун транспортера са траком. У специјалном делу су наведени параметри које мора да испуни пројектовани ...... Op3uHa Ha JIeOHHIH IIonaTakK O TOMe Jia JIH Je KaMHOH IIyH HJIH IIpa3aH 40 š EŽ EC I zE LE E [] ]] 1i 1} ii }] Ž o v m a r e x M o - w + w i g s W M M x H , „F EF FF FE FE FE FE FE FF " ; | I F _ . |I 7 " ~ . ZI y F ~ ” I „ u . ZI 'ŽI " “ . M — I NEB BOR .. i ZI " – M — OB ...
... 1000 . kW v — Op3HHa Tpake, Fo – o0ojmHa ByuHa cHJa Fo=C-L·w·g·|qo+qp+(2-·qt+qk)·cos4|+qk·H·g C — KOpeKTHBHH (bakrop, L – nyxxaHa TpaHcrtoprepa, w — onnrriH Koe(pHIuijeHT oTrnmopa KpeTab»y TpaKe, qo , qp — OTIIOp porHpabb»y BaJbaKa Ha Hocehoj H nOBpaTHoOJ cTpaHu, qt — OTIIOp Mace Tpake, qk – ...
... = |HHTHGWi"T%TTTK Tr Daaocve Tch |J»m DB) |[TEREX TRBOMajoyi»3ya _OOO a Jg v liwR} INAAA Ics I r Opedm: Gpod lrs de |__1UC 4 [ 0 swa Spetlera w Duoro| 10 Mer 60 e= Dummwaimea | IČCC Mer I 60 e MNIA uka | 82C % | Lucd Characteystcs — ___ | X MobceFow | E ) — lrsnetreziee lipwse faetНикола Аџић. Транспортни систем за руду на површинском копу Бувач, 2024
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Multivarijabilni modeli upravljanja u rudarstvu
Marjan M. Hudej (2014-02-03)osetljivost i rizik. Više pobuda generiše ovakvu atribuciju. Prva je, multivarijabilnostambijentalnih uslova i funkcionalna i strukturna složenost rudarskih sistema (čovek -priroda (radna sredina) - mašina – okruženje); Druga se odnosi na ne postojanje opštenaučne saglasnosti oko ocene pogodnosti modela za podršku odlučivanju i upravljanje.Treća, ako bi saglasnost i postojala, nije sigurno da bi raspoloživi modeli, metode i taktike,dale ekvivalentne rezultate za iste rudničke uslove. Četvrta, sistemske nauke još uveknemaju opšte prihvaćen i u praksi primenljiv algoritam izbora najboljeg rešenja ...... Univerzitet u Beogradu, Rudarsko-geološki fakultet 39 n nnn n w w w w w w w w w w w w w w w w w w B 21 2 2 2 1 2 2 1 2 1 1 1 ... (3.18) Gde je: wi – relevantni težinski koeficijent elementa i. ...
... Uslov saglasnosti, koji se definiše pragom saglasnosti p i stvarnim indeksom saglasnosti c(a,b): %100, 1 1 n j j Jj j w w bac (3.6) Gde je: J1 - Skup svih kriterijuma po kojima je alternativa a bolja ili bar jednako dobra kao alternativa b, a wj težinski koeficijent ...
... mere učestalost kriterijuma gde alternativa Ak preferira u odnosu na alternativu As. Indeksi cks se izračunava: n j j cj j ks w w c ks 1 (3.12) 5. Odrediti matricu neslaganja koeficijenata dks koji mere učestalost kriterijuma, gde alternativa Ak ne preferira u odnosu ...Marjan M. Hudej. "Multivarijabilni modeli upravljanja u rudarstvu" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-02-03)