Претрага
823 items
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Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders
Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica (2023)... Technologies, Institute for Multidisciplinary Research, University of Belgrade Faculty of Technology and Metallurgy, University of Belgrade e Z _ -— M, e V A7th o nfayanca dE _N 7CS CS - 20 23 the Serbian Society for Ceramic Materials { June 14-16. 2023. Belgrade Serbia — , b " AYNR 1 / V M_ ...Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica. "Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders" in Programme and the book of abstracts 7th Conference of The Serbian Society for Ceramic Materials 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia , Beograd : Institut za multidisciplinarna istraživanja (2023)
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The Use of the Omeka Semantic Platform for the Development of the University of Belgrade, Faculty of Mining and Geology Digital Repository
Under the regulations of the Ministry of Education, Science and technological Development, a digital repository based on the Omeka S data storage platform has been developed for the Faculty of Mining and Geology. The platform has been upgraded with the required modular extensions, Solr index and automatic OCR. Furthermore, document indexing and search have been fine-tuned with the aid of e-dictionaries of the Serbian language, which has brought about outstanding results in terms of usage facilitation and overall ...Petar Popović, Mihailo Škorić, Biljana Rujević. "The Use of the Omeka Semantic Platform for the Development of the University of Belgrade, Faculty of Mining and Geology Digital Repository" in Infotheca, Faculty of Philology, University of Belgrade (2021). https://doi.org/10.18485/infotheca.2020.20.1_2.9
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Badenske školjke jugoistočnog oboda Panonskkog basena (Centralni Paratetis)
Gordana M. Jovanović (2014-12-05)Rad obuhvata detaljnu studiju badenskih školjaka koje potiču sa terenajugoistočnog oboda Panonskog basena (Centralni Paratetis). Proučavani su lokaliteti naprostorima Srbije (Fruška gora, Golubac, okolina Beograda, Aranđelovca, Koceljeva,Loznica) i severoistočne Bosne (Ugljevik). Pored taksonomske analize i paleontološkihopisa bivalvija, u radu je dat i spisak revidovanih vrsta koje su do sada pronađene usedimentima badenskog kata istraživanog terena. Do sada je ukupno poznato 41familija, 108 rodova i 174 taksona. Identifikovano je 170 bivalvijskih vrsta, međukojima su neke prvi put konstatovane na ovim ...školjke, baden, Panonski basen (Centralni Paratetis), stratigrafija,paleoekologija, paleogeografija, paleobiogeografija... 31-56. Eichwald, E. 1830. Naturhistorische Skizze von Lithauen, Volhynien und Podolien in Geognostisch-Mineralogischer, Botanischer und Zoologischer Hinsicht. Zawadzki, Wos Vilna, pp 256. Eichwald, E. 1853. Leathaea Rossica ou paléontologie de la Russie. Dernière période. E. Schweizerbart, Stouttgart ...
... Doktorska disertacija 204 Harzhauser, M., Werner, E., Piller i E. W., Latal, C. 2007. Geodynamic impact on the stable isotope signatures in a shallow epicontinental sea. Terra Nova, 19: 1-7. Harzhauser, M., Kroh, A., Mandic, O., Piller, E., P., Gohlich, U., Reuter, M., Berning, B. 2007. Bi ...
... gastropods. In: Savazzi, E., (ed.), Functional Morphology of the Invertebrate Skeleton: John Wiley and Sons, New York, p. 169-182. Kojumdgieva, E. i Strachimirov, 1960. Le Tortonien du type viennois (in Bulgarian with French summary). In: Les fossilles de Bulgarie (E. Kojumdgieva and B. St ...Gordana M. Jovanović. "Badenske školjke jugoistočnog oboda Panonskkog basena (Centralni Paratetis)" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-12-05)
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Prostorni položaj ofiolita istočne Vardarske zone: geofizičko-geološki model i njegove geodinamičke implikacije
Dragana D. Petrović (2015-12-29)Centralni deo Balkanskog poluostrva je geotektonski veoma složen. Tetis je zatvorentokom gornjeg mezozoika, a ofioliti na zapadu i ofioliti Vardarske zone predstavljajuostatke nekadašnjih okeanskih prostora. Najistočniji deo Vardarske zone razlikuje se odsvih ostalih ofiolita na Balkanskom poluostrvu i karakteriše se najizraženijim suprasubdukcijskimafinitetom. Istočna vardarska zona locirana je u centralom delu Srbije.Na severu se prostire do Apusena u Rumuniji, a na jugu obuhvata cetralni deoMakedonije i Peonias zonu u severnoj Grčkoj. Istočna vardarska zona se nalazi istočnood geotektonske jedinice Kopaonik ...... ac ij o m p o d at ak a d al ji n sk e d et ek ci je , te re n sk o g o sm at ra n ja i g ra v im et ri js k ih p o d at ak a; r o ze te z a lo k al n e i re g io n al n e ru p tu re su ta ko đe p rik az an e 66 5. DISKUSIJA Diskusija je podeljena ...
... karte analitičkog produženja polja za nivoe a) 500, b) 1000, c) 2000, d) 3000, e) 5000 m, sa položajima profila 75 Slika 31. Geomagnetske karte analitičkog produženja polja za nivoe a) 500, b) 1000, c) 2000, d) 3000, e) 5000 m, sa položajima profila 76 Slika 32. Geomagnetska karta ...
... Eastern Mediterranean Region: Geological Society [London] Special Publications 260, p. 35–50. Hinsbergen, D. J. J., Hafkenscheid, E., Spakman, W., Meulenkamp, J. E., Wortel, M. J. R., 2005. Nappe stacking resulting from subduction of oceanic and continental lithosphere below Greece, Geology 33 ...Dragana D. Petrović. "Prostorni položaj ofiolita istočne Vardarske zone: geofizičko-geološki model i njegove geodinamičke implikacije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-12-29)
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Sinteza i strukturna karakterizacija mikroporoznih arsenata i fosfata
Sabina Z. Kovač (2015-09-28)Predmet rada i istraživanja ove doktorske disertacije su sinteza i strukturnekarakteristike novih kristalnih arsenata i fosfata koji sadrže Mg, K, Ca, Mn, Fe, Co, Ni,Cu, Zn, Sr, Ba i druge katjone. U strukturama arsenata i fosfata, AsO4- i PO4-tetraedrinajčešće se vezuju sa tetraedarski ili oktaedarski koordinisanim katjonima prelaznihmetala formirajući otvorene strukture (slojeve ili 3D mreže) sa širokim opsegomrazličitih topologija. U šupljinama ili porama u obliku povezanih ili nepovezanihkanala, tunela, kaveza i međuslojnog prostora mogu se ugraditi različiti vanmrežni joni(obično ...... May 1–3, Denver, Colorado, USA. 28. Brese, N. E. and O’Keeffe, M. (1991) Acta Crystallogr. B47, 192–197. 29. Bu, X. H., Feng, P. Y., Gier, T. E., Stucky, G. D. (1998a) J. Solid State Chem. 136, 210–215. 30. Bu, X. H., Feng, P. Y., Gier, T. E., Zhao, D. Y., Stucky, G. D. (1998b) J. Am. Chem ...
... Mater. 6, 679–680. 159. Troemel, M. and Lupprich, E. (1975a). Z. Anorg. Allg. Chem. 414, 160–168. 160. Troemel, M. and Lupprich, E. (1975b). Z. Anorg. Allg. Chem. 414, 169–175. 161. Troyanov, S. I., Kostrikin, A. V., Linko, I. V., Zaitsev, B. E., Ezhov, A. I., Spiridonov, F. M. (1999) Kristallografiya ...
... 14172 13949 14656 19417 broj nezavisnih refleksija 1798 1802 1800 2615 broj refleksija sa I>2σ(I) 1783 1466 1630 2234 Δρmax (е Å‒3) 0,47 0,89 0,78 0,65 Δρmin (е Å‒3) –0,33 –0,66 –0,60 –0,71 Tabela 8. Koordinate i ekvivalentni izotropni parametri pomeranja atoma za ZnAs. atom x y z ...Sabina Z. Kovač. "Sinteza i strukturna karakterizacija mikroporoznih arsenata i fosfata" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-09-28)
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Development and Evaluation of Three Named Entity Recognition Systems for Serbian - The Case of Personal Names
In this paper we present a rule- and lexicon-based system for the recognition of Named Entities (NE) in Serbian news paper texts that was used to prepare a gold standard annotated with personal names. It was further used to prepare training sets for four different levels of annota tion, which were further used to train two Named Entity Recognition (NER) sys tems: Stanford and spaCy. All obtained models, together with a rule- and lexicon based system were evaluated on ...... (Friburger and Maurel, 2004; Mau- rel et al., 2011). Each transducer rely in its work on the results of previous transducers and on e- dictionaries of Serbian (Vitas and Krstev, 2012). E-dictionaries play an important role specifically in the recognition of name expressions, since, beside general lexica, they ...
... adding new NE classes (or- ganization names) and new sub-classes (e.g. for geopolitical names: regions, super-regions and city counties). In addition, the e-dictionaries of Serbian were also continually improved and en- hanced, and that by itself contributes to better per- formance of SRPNER. The new version ...
... times which yielded “four levels” of gold standard. Between these repeated runs the devel- opment of SRPNER continued, as well as the en- hancement of e-dictionaries of Serbian. 3 Training Different NER Systems 3.1 Training Sets The gold standard GOLDPERS contains 9, 046 sentences, each one enclosed ...Branislava Šandrih, Cvetana Krstev, Ranka Stanković. "Development and Evaluation of Three Named Entity Recognition Systems for Serbian - The Case of Personal Names" in Proceedings - Natural Language Processing in a Deep Learning World, Incoma Ltd., Shoumen, Bulgaria (2019). https://doi.org/10.26615/978-954-452-056-4_122
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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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Modeliranje disperzije dimnih gasova iz termoelektrane ,, Nikola Tesla”
Milica Kostić (2024)Termoelektrane na ugalj, iako značajan izvor električne energije, predstavljaju veliki izazov zbog zagađenja koje uzrokuju. Glavni uzrok zagađenja je neumerena ljudska potreba za energijom i resursima, što dovodi do emisije različitih zagađivača u atmosferu, uključujući okside ugljenika, sumpora, azota, kao i lebdeće čestice i toksine. Ove emisije imaju negativan uticaj na kvalitet vazduha, zdravlje ljudi i životnu sredinu. Procena uticaja termoelektrana na ugalj na životnu sredinu je zakonska obaveza i ključna za smanjenje tih negativnih efekata. Ovaj dokument analizira potencijalne ...... O goy o | P LO <.~~ mI I > = > ii o a o ~ oA d d} mm o | ~g LON MO ii ıl | " - <= m = > o |e] z oO > m š Kl | < m = o m= z= = > = 5 e w a j > > 5 < - > > j FI o s m > )C> o E ::] = = > > ii = Fa > Z > > > d M Kl Slika 6.2. Srednje mesečne temperature vazduha za period 2019.-2022 ...
... povećanjem nivoa mora. Na slici 2.5. dat je grafički prikaz predviđanja povećanja temperature na Zemlji. /75.} Predviđena promena temperature T e m p e r a t u m a pr om en a (* C) T T_I r ——— T 2000 2020 2040 2060 2080 2100 Godina Slika 2.5. Predviđanja o promenama temperature u narednih ...
... Prosečni pravac vetra. ——— | | | ' | || | | [| | | || ' || | | | | || || |} | || | | |} |} || || Ra st oj an je od ce nt ra ln e li ni je pe rj an ic e “ 10-minutno uprosečenje - L - - - - _ 1 _ _ _ Koncentracija 2-časovno uprosečenje Slika 3.3. Ponašanje perjanice u almosferi ...Milica Kostić. Modeliranje disperzije dimnih gasova iz termoelektrane ,, Nikola Tesla”, 2024
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Konceptualni model hidrogeotermalnog sistema šire okoline Brusa - geotermalna karakterizacija sistema / Conceptual model of hydrothermal system of Brus area - system geothermal characterization
Dejan Milenić, Ana Vranješ, Marinko Toljić, Ivana Vasiljević, Natalija Radosavljević, Matija Ognjanović (2024)Postavljeni konceptualni model hidrogeotermalnog sistema Brusa sa širom okolinom testiran je primenom različitih hidrohemijskih i izotopskih metoda u cilju njegove verifikacije i karakterizacije. Rezultati su ukazali na atomsfersko poreklo geotermalnih fluida i na razviće primarnih rezervoara u okviru karbonatnih stena. Prvi rezervoar formiran je u okviru krečnjaka gornjotrijakse starosti, dok drugi rezervoar egzistira u okviru trijskaih mermera. Zone prihranjivanja locirane su u zapadnom delu terena. Sistemi gravitacionih raseda kontrolišu kretanje fluida u sistemu, dok proces jonske izmene dominira u ...Dejan Milenić, Ana Vranješ, Marinko Toljić, Ivana Vasiljević, Natalija Radosavljević, Matija Ognjanović. "Konceptualni model hidrogeotermalnog sistema šire okoline Brusa - geotermalna karakterizacija sistema / Conceptual model of hydrothermal system of Brus area - system geothermal characterization" in XVII Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem , Pirot, Serbia, 02-06. October 2024, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet (2024). https://doi.org/10.5281/zenodo.13739443
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Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential
The study presented in this paper assessed the multidisciplinary approach of geothermal potential in the area of the most southeastern part of the Pannonian basin, focused on resources utilization. This study aims to present a method for the cascade use of geothermal energy as a source of thermal energy for space heating and cooling and as a resource for balneological purposes. Two particular sites were selected—one in a natural environment; the other within a small settlement. Geothermal resources come ...геотермална енергија, Панонски басен, геотермална каскада, енергетска ефикасност, бањски центри, балнеологија, биоклиматска архитектура, стратегије пасивног дизајнирања, модуларни објекти... Stephan Mueller Spec. Publ. Ser. 2002, 3, 1–12. [CrossRef] 23. Horváth, F.; Musitz, B.; Balázs, A.; Végh, A.; Uhrin, A.; Nádor, A.; Koroknai, B.; Pap, N.; Tóth, T.; Wórum, G. Evolution of the Pannonian basin and its geothermal resources. Geothermics 2015, 53, 328–352. [CrossRef] 24. Kostić, A. Thermal Evolution ...
... W/(m2 × K) U = 0.85 W/(m2 × K) Aluminium frame with enhanced thermal break, Low-e double glazing with krypton gas filling Fx = 1 solar factor g = 0.4 frame factor ff = 0.25 Aluminium frame with enhanced thermal break, Low-e triple glazing with krypton gas filling Fx = 1 solar factor g = 0.35 frame factor ...
... W/(m2 × K) U = 1.1 W/(m2 × K) Aluminium frame with enhanced thermal break, Low-e double glazing with krypton gas filling Fx = 1 solar factor g = 0.4 frame factor ff = 0.25 Aluminium frame with enhanced thermal break, Low-e triple glazing with krypton gas filling Fx = 1 solar factor g = 0.35 frame factor ...Nataša Čuković-Ignjatović, Ana Vranješ, Dušan Ignjatović, Dejan Milenić, Olivera Krunić. "Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential" in Applied Sciences-Basel, МDPI (2021). https://doi.org/10.3390/app11062691
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Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders
Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić (2023)... Technologies, Institute for Multidisciplinary Research, University of Belgrade Faculty of Technology and Metallurgy, University of Belgrade e Z _ -— M, e V A7th o nfayanca dE _N 7CS CS - 20 23 the Serbian Society for Ceramic Materials { June 14-16. 2023. Belgrade Serbia — , b " AYNR 1 / V M_ ...Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić. "Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders" in Programme ; and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia , Beograd : Institut za multidisciplinarna istraživanja, (2023)
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Project REASONING: Characterization and technological procedures for recycling and reusing of the rudnik mine flotation tailings
Vesna Cvetkov, Vladimir Simić, Stefan Petrović, Filip Arnaut, Milena Kostović, Dragan Radulović, Jovica Stojanović, Vladimir Jovanović, Dejan Todorović, Nina Nikolić, Jelena Senćanski, Grozdanka Bogdanović, Dragana Marilović (2024)Vesna Cvetkov, Vladimir Simić, Stefan Petrović, Filip Arnaut, Milena Kostović, Dragan Radulović, Jovica Stojanović, Vladimir Jovanović, Dejan Todorović, Nina Nikolić, Jelena Senćanski, Grozdanka Bogdanović, Dragana Marilović. "Project REASONING: Characterization and technological procedures for recycling and reusing of the rudnik mine flotation tailings" in 5th Congress Geologists of the Republic of North Macedonia, Ohrid, 28-29. 10. 2024, Македонско геолошко друштво (2024)
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Numerical modelling of a single intra-oceanic subduction for the origin of the Balkan ophiolites
Nikola Stanković, Vesna Cvetkov, Vladica Cvetković. "Numerical modelling of a single intra-oceanic subduction for the origin of the Balkan ophiolites" in 5th Congress Geologists of the Republic of North Macedonia, Ohrid, 28-29. 10. 2024, Македонско геолошко друштво (2024)
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Старење бунара у алувијалним срединама различитог степена оксичности
Brankica Majkić (2013-09-27)Старење бунара настаје као последица процеса корозије и колмирања. Процесекорозије могуће је спречити уградњом филтерских конструкција од материјалаотпорних на корозију. Колмирање може да настане без обзира на врсту материјалаод кога се праве бунарске конструкције, а процесом може бити захваћенаприфилтарска зона па и зона саме водоносне средине. Из тог разлога тезa јеусмеренa на процесе који доводе до колмирања бунара и последицe опадањaкапацитета водозахватних објеката. Полазна хипотеза је да бунари стареразличитом брзином у срединама различитог степена оксичности. Хидрохемијскеи микробиолошке карактеристике подземних ...старење бунара, алувијалне издани, степен оксичности средине,колмирање, бунарски талог, локални хидраулички губитак, дозвољене улазнебрзине... улазну брзину прилагодити квалитету подземних вода односно условима оксичности средине (слика 7.7). 1,E-06 1,E-05 1,E-04 1,E-03 1,E-02 0 50 100 150 200 250 300 350 400 Eh (mV) v m e re n o ( m /s ) Abr teor Zihart teor Kovač teor Trnovce Kljuc Kovin Power (Abr teor) Power (Kovač teor) ...
... 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 E b -7 E b -7 E b -7 V b -6 V b -6 V b -6 V b -6 V b -6 V b -2 V b -2 V b -2 V b -2 V b -2 P v b -2 N P v b -2 N P v b -2 N V b -7 Ти п пр ео вл ађ уј ућ е ре до кс р еа кц иј е Назив бунара/пијезометра Извориште Кључ Преовлађујућа ...
... 10 11 12 13 14 15 16 17 18 19 20 21 E b -7 E b -7 E b -7 V b -6 V b -6 V b -6 V b -6 V b -6 V b -2 V b -2 V b -2 V b -2 V b -2 P v b -2 N P v b -2 N P v b -2 N V b -7 Ти п пр ео вл ађ уј ућ е ре до кс р еа кц иј е Назив бунара/пијезометра Извориште Кључ Преовлађујућа ...Brankica Majkić. "Старење бунара у алувијалним срединама различитог степена оксичности" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-09-27)
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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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Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete
Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović (2021)sagorevanje lignita, otpadna šljaka, zamena cementa, proizvodnja maltera i betona, fizičko-mehanička i fizičko-hemijska karakterizacija... characteristics of hardened mortar was performed according to the standard EN 191-1. A total of 5 different mortar mixes were made: reference mixtures (E-M) and four mixtures (PM-10, PM-15, PM-20, and PM-25) in which cement was replaced with 10%, 15%, 20%, and 25% of slag and silica fumes regarding mass ...
... mm) in the laboratory mixer “Hobart N-50”. Minerals 2021, 11, 925 4 of 16 Table 2. Mix proportion of mortar for one series of samples. Component E-M P10-M P15-M P20-M P25-M Cement [g (cm3)] 450.00 (142.86) 402.34 (127.73) 378.73 (120.23) 355.27 (112.78) 331.96 (105.38) Slag [g (cm3)] - 39.79 (17 ...
... proportions of concrete mixtures for 1 m3 of concrete are given in Table 3. Table 3. Mix proportion of concrete mixtures for 1 m3 of concrete. Component E-C P10-C P15-C P20-C P25-C Cement [kg (m3)] 375.00 (0.119) 336.32 (0.107) 316.78 (0.101) 297.32 (0.094) 277.67 (0.088) Slag [kg] - 33.16 (0.015) 49.65 ...Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović . "Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete" in Minerals, MDPI (2021). https://doi.org/10.3390/min11090925
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The application of ArcGIS for assessing the potential of solar energy in urban area: The case of Vranje
In order to determine the solar energy potential for a specified location, it is crucial to consider the latitude, altitude, slope, terrain morphology, atmospheric conditions, etc. Such a complex calculation and mapping of solar energy can be done using the ArcGIS geoprocessing tool, named Area Solar Radiation (ASR). By using the ASR tool, supported with the adequate input data, it is possible to calculate the maximum solar radiation energy (irradiation) for a defined area and for a specified time ...... generated from a PV system, the equation retrieved from the website of United States Environmental Protection Agency (US EPA) is used: E=A*r*H*PR (1I) in which: E = Energy (kWh); A = Total solar panel Area (m?); 12% International Conference on Energy and Climate Change, 9-11 October 2019, Athens ...
... GIADIS Teaching assistant, Faculty of Mining and Geology, University of Belgrade ! Contact details of corresponding author Tel: +381654071990 E-mail: boban_pavlovic ehotmail.rs Address: Djusina 7, 11000 Belgrade Abstract In order to determine the solar energy potential for a specified location ...
... Dif.=2 Difs« (10) Case of Vranje 'Vranje is the administrative center of Pcinja district. The DMS coordinates of Vranje are 429%3'5" N 21%54'1" E. The city is located in the southeastern part of Serbia (Figure 7). The total area of Vranje is 860 km?, and according to the estimation of the Statistical ...Boban Pavlović, Milica Pešić-Georgiadis. "The application of ArcGIS for assessing the potential of solar energy in urban area: The case of Vranje" in 12th International Conference on Energy and Climate Change, 9-11 October 2019, Athens - Greece, Energy Policy and Development Centre (KEPA) of the National and Kapodistrian University of Athens (2019)
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Mesozoic carbonate rocks in Serbia used as dimension stone
Vesna Matović, Tijana Vojnović Ćalić (2016)The building industry in Serbia uses, to a great extent, imported natural stone for architectural purposes. The significance of local deposits, particularly limestones, is not adequately perceived despite the country’s abundance of these valuable resources. Therefore, this study focuses on Serbia’s Mesozoic carbonate rocks, specifically on the deposits of four selected quarries: Klisura, Skrzut, Struganik, and Tisnica. The quality and prospects of the application of these limestones has not yet been the subject of a detailed, comprehensive investigation. Therefore, ...... University of Belgrade, Djusina 7, Belgrade, Serbia e-mail: vesna.matovic('rgf.bg.ac.rs T. V. Ćalić Department of Architectural Technology, Faculty of Architecture, University of Belgrade, Bulevar Kralja Aleksandra 73/II, Belgrade, Serbia e-mail: vojnovic.tijanać' gmail.com results demonstrate ...
... (Gajić 2007). Tectonically, the rock mass is charac- terized by the presence of longitudinal, parallel faults extending in a N-NW direction with an E-NE dip of 50% 60%. Limestone exploitation is performed along additional primary surfaces of mechanical discontinuity (bedding planes), whereas secondary ...
... limestones: a Klisura red nodular limestone (polished surface); b Klisura biomicrite; c Skrzut limestone (polished surface), d Skrzut biomicrudite; e Struganik limestone (nafural split surface); and f Struganik biomicrite biosparrudite, intrabiosparrudite (rudstone microfacies), biosparite ...Vesna Matović, Tijana Vojnović Ćalić. "Mesozoic carbonate rocks in Serbia used as dimension stone" in Bulletin of Engineering Geology and the Environment, Springer Science and Business Media LLC (2016). https://doi.org/10.1007/s10064-015-0722-0
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Opremanje bušotine X zavojnom pumpom
Milan Filipović (2024)Ovaj rad se bavi osnovnim pojmovima i karakteristikama zavojnih pumpi.Prikazan je sklop zavojnih pumpi i njena prateća oprema. Objašnjen je princip rada zavojnih pumpi kao i uloga svakog mašinskog elementa koji se nalazi u pumpi. Razmotrene su prednosti i nedostaci primene ovih primarnih mehaničkih metoda eksploatacije ugljovodonika. Dat je uvid u inovativna rešenja problematike primene zavojnih pumpi. Na konkretnom primeru bušotine X su prikazani problemi kao i rešenja primene ovih primarnih mehaničkih metoda u praksi. Napravljena je detaljna analiza ...... shematski prikaz radnog kola zavojne pumpe. ı Centreline of T~— Rotor ' — —:!d _— 'Centreline of Rotor * y W [entreline of Stator F| |2 = s e Š Rotor contacts :, y- stator here F!ud * O creating a Filled 5 sealed cavity Caviles & (a) Assembled Pump · (b)Rotor Geometry · (c)Stator Geometry ...
... +4ed-86- z(0d—6%,6>0 4ed,- Seć- a(dd,- 6%,06<0 A — poprečni presek [m?] Š – faktor uklapanja [m] d, — prečnik rotora [m] d — prečnik statora [m] e — ekscentričnost [m] Nakon određivanja površine poprečnog preseka radnog kola zavojne pumpe, teorijski zapreminski protok se može izračunati na sledeći ...
... glatke šipke. Na slici 11 je prikazana glatka šipka označena pod nazivom „,Wellhead Drive”. (Zelić, 2006) Prime Mover Wellhead Drive irPecoperOnra e Coupling/Centralizer :w |h V R ZA ı y i W D A — _ T T I A W R R . . [ [ 0 % Rod String Production Tubing :i Slika 11 ...Milan Filipović . Opremanje bušotine X zavojnom pumpom, 2024
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Mineral Resources of Serbia: Environmental, Societal and Economic Challenges
... yield 4000 3500 3000 2500 2000 1500 1000 500 o ppg an u u u a R O a I a SC e e gp o e O SG .O o ZO Ž0 o TO S E — O RE BEEKEEKSISKIKEEHEESEE a es% SS5S S6e0SŠSS52EOSŠaBaSBRST I Š < < - e i K a III f Figure 4. Soybean average grain yield in the world by countries, 2009-2013 ...
... HadCM, and NCAR) under two scenarios (A1B and A2) for the year 2050 for ten locations (E-EKCHAM, H-HadCM, and N-NCAR) Sowing - Anthesis Sowing - Maturity 2050 2050 Loc. | AIB A2 AIB A2 E H N E H N E H N E H N CU |-7 -9 -8 -7 || -7 -7 -8 -9 -6 -9 -6 DM | -II -13 -9 -13 6 |-II -11 -14 -10 -13 ...
... under the A1B and A2 IPCC scenarios 2050 Absolute change in air temperature (*C) | Relative change in precipitation (%) AIB A2 AIB A2 E H N E H N E H N E H N CU | 2.8 3.9 2.5 34 48 |3.0 |-33.9 | -22.9 | -31.8 | -39.1 | -26.7 | -36.8 DM | 2.8 |4.0 2.5 34 49 |3.0 «|-38.1 | -22.6 | -40.9 | -43 ...Vladimir Simić, Rade Jelenković, Dragana Životić. "Mineral Resources of Serbia: Environmental, Societal and Economic Challenges" in Serbia: Current Issues and Challenges in the Areas of Natural Resources, Agriculture and Environment,, Nova Science Publishers, Inc. (2019)