Претрага
610 items
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Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels
Irina Zahirovic, Dušan Danilović, Milica Šuput Vranjin, Miloš Tripković. "Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels" in SPE Journal (2023)
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Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites
Marija Šuljagić, Aleksandar Kremenović, Ivan Petronijević, Adis Džunuzović, Miljana Mirković, Vladimir Pavlović, Ljubica Anđelković (2023)To investigate the effect of synthesis procedure and sintering temperature on the functional properties of perovskite/spinel ceramics, BaTiO3/CoFe2O4 composites were prepared by thermal decomposition, coprecipitation, and microemulsion method, and sintered at 1150°C and 1300°C. The phase composition and morphology of as-prepared powders as well as sintered ceramics were thoroughly examined by X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS). The dielectric and ferroelectric measurements were performed in detail. Generally, the ...Marija Šuljagić, Aleksandar Kremenović, Ivan Petronijević, Adis Džunuzović, Miljana Mirković, Vladimir Pavlović, Ljubica Anđelković. "Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites" in Science of Sintering (2023). https://doi.org/10.2298/SOS220512013S
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Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)
Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović. "Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)" in Challenges : Sustainable Land Management – Climate Change, Advances in Geoecology 43, Catena Verlag GMBH (2014)
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Modeliranje tehnoloških procesa u rudarstvu u uslovima nedovoljnosti podataka primenom teorije grubih skupova
Zoran M. Štirbanović (2015-07-01)Rudarstvo, a u okviru njega i priprema mineralnih sirovina, se odlikuje složenošću tehnoloških procesa što je posledica velikog broja uticajnih parametara. Samim tim je potrebno biti veoma obazriv prilikom donošenja odluka u oblasti rudarstva. U cilju što efikasnijeg funkcionisanja procesa, moguće je primeniti različite metode koje služe za pojednostavljenje procesa odlučivanja. Jedna od takvih metoda jeste i teorija grubih skupova. Ona predstavlja relativno novu matematičku teoriju koja je pogodna za razumevanje nepreciznih i nepotpunih podataka kao i za otkrivanje ...rudarstvo, priprema mineralnih sirovina, teorija grubih skupova, višekriterijumsko odlučivanje, flotacijsko jalovište, flotacijski kolektor, flotaciona mašina... a skupa X u odnosu na R je skup svih objekata, koji se sa sigurnošću mogu klasifikovati kao X u odnosu na R. - Gornja aproksimacija skupa X u odnosu na R je skup objekata koji se verovatno mogu klasifikovati kao X u odnosu na R. - Granična oblast skupa X u odnosu na R je skup svih objekata koji ...
... zadato q i r). Variranjem parametra q i r dobijaju se različiti rezultantni grafovi, na i različiti skupovi preferiranih rešenja. Povećavanjem vrednosti q i smanjivanjem r sužava se skup preferiranih rešenja. U praktičnim zadacima korisno je ispitati intervale 0,5 ≤ q ≤ 1 i 0 ≤ r ≤ 0,5. ...
... P. K. Ackerman, G. H. Harris, R. R. Klimpel, F. F. Aplan, Evaluation of Flotation Collectors for Copper Sulfides and Pyrite, I. Common Sulfhydryl Collectors, International Journal of Mineral Processing, 21, 1987, pp. 105-127. 94. P. K. Ackerman, G. H. Harris, R. R. Klimpel, F. F. Aplan, Evaluation ...Zoran M. Štirbanović. "Modeliranje tehnoloških procesa u rudarstvu u uslovima nedovoljnosti podataka primenom teorije grubih skupova" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-07-01)
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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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Geostatički proračuni sanacije klizišta šipovima
U ovom radu su, polazeći od rezultata geotehničkih istraživanja, prikazani geostatički proračuni sanacije klizišta vertikalnim šipovima. Metodologija proračuna je složena, jer podrazumeva interakciju klizišta i stabilizirajućih šipova. Stoga se simultano analiziraju stabilnost klizišta i stabilnost šipova. Prilikom određivanja bočne otpornosti tla oko šipova koristi se metoda Brinč Hansena koja uzima u obzir trodimenzionalne uslove u tlu i može da se primeni u složenim geološkim uslovima koji su česti u Srbiji. Analize stabilnosti klizišta vrše se odgovarajućim metodama granične ravnoteže. ...sanacija klizišta, interakcija klizišta i šipa, bočna otpornost šipova, stabilnost klizišta i šipova... unutrašnjeg trenja. = Ке = 759 К = 222 р c=1–S 80 g=45'__|--1""T" o=40. ——— ·_,··"' /" 50 — _ | = 40 | ___---81.4 — 40 ____ 272 30 Д И 180 7 Н нег i и e = 20 / Д MO рњ О 80 – и јуч / — m __ ју /_„·–, / / рИ ти / з0г ___ __ —> 61.4 10 2 е 257 р K / — рИИИ li — 9.91 K 40 — 250 —y 36.8 ...
... —|s e _J ___M00 __ ______„ljaž 2 РЖИ њ 10 — 5 7___ 40.2 / -_'_________-–·—···""—–"·_– — 1,93 ;zi:: zip 00 __ —18.14 r= 5 1 ___ | _____log? | ) 4»/"_/ К'„' = 0 2а ф = 0% 2 р & a 2 20 0 5 102/B 15 20 2/8 Slika 3. Koeficijent bočnog.pritiska а koji zavisi od kohezije (Brinč Hansen, 1961) ...
... se superponiraju otpori tla duž klizne površine i otpori koji su posledica interakcije šipa i okolnog tla. Tako da se faktor sigurnosti Fs s s s s R +HF = D (5) gde je: Rs – otporne sile u klizištu Hs – otporne sile od šipova Ds – - otporne sile, duž - deo kliznog tela, koji je ispred šipova, ...Slobodan Ćorić, Dragoslav Rakić, Dušan Berisavljević. "Geostatički proračuni sanacije klizišta šipovima" in Zbornik radova osmog naučno-stručnog međunarodnog savetovanja - Geotehnički aspekti građevinarstva, Savez građevinskih inženjera Srbije, (2019)
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Identification of the Best Available Renewable Energy Source for Electricity Production in Serbia
Around 2/3 of electricity production in Serbia originates from coal-fired thermal power plants. The most significant domestic coal deposits are lignite deposits, a type of low -quality coal that causes negative health, climate and environmental impacts during the combustion. To reduce those negative impacts on domestic electricity production and to promote environmental awareness, the Serbian Energy Sector Development Strategy and the National Action Plan for Use of Renewable Energy Sources indicate the plan for increasing the share of ...Strategija obnovljive energije, Održiva energija, Proizvodnja električne energije, Solarna energija, Biomasa, Hidroenergije, Energija vetra... Development Strategy and the National Action Plan for Use of Ren ewable En ergy Sources in dicate the plan for in creasing the share of r en ewable energy sou r ces (RES) in electricity production. Serbia is obliged to reach 27% of the gross energy final con sumption prov ided from the RES u ntil ...
... publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Abstract A r ound 2/3 of electricity production in Serbia originates from coal-fired thermal power plants. Th e m ost significant dom estic coal deposits are lignite ...Boban Pavlović, Dejan Ivezić, Marija Živković. "Identification of the Best Available Renewable Energy Source for Electricity Production in Serbia" in Conference on Sustainable Development of Energy, Water and Environment Systems, Sarajevo, 28.6.-2.7.2020., Faculty of Mechanical Engineering and Naval Architecture, Zagreb (2020)
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Модел померања терена услед утицаја рударских радова на основу радарских сателитских снимака
Зоран Гојковић (2023)Површински коп, као систем који обезбеђује енергетску стабилност или снабдевање сировинама које су од изузетне важности за привредни напредак, својим функционисањем утиче на околна насељена места. Међу бројним аспектима овог утицаја, може се издвојити издвојити и анализирати утицај вертикалних и хоризонталних померања која се јављају на површи терена. Мониторинг вертикалних и хоризонталних померања површи терена околних насељених места треба да има што бољу временску резолуцију (временски период између праћења деформација) како би се вертикална и хоризонтална померања контролисала и ...Зоран Гојковић. Модел померања терена услед утицаја рударских радова на основу радарских сателитских снимака, Београд : Универзитет у Београду, Рударко - геолошки факултет, 2023
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Inhibitory effect of platinum and ruthenium bipyridyl complexes on porcine pancreatic phospholipase A2
Tina Kamčeva, Jörg Flemmig, Bojana Damnjanović, Jürgen Arnhold, Aleksandar Mijatović, Marijana Petković (2011)Fosfolipaza pankreasa A2 (PLA2) igra važnu ulogu u ćelijskoj homeostazi kao iu procesu karcinogeneze. Efekti metalo-lekova koji se koriste kao hemoterapeutici na aktivnost ovog enzima nisu poznati. U ovom radu, interakcija između PLA2 svinjskog pankreasa i dva odabrana kompleksa prelaznih metala — tetrahloro(bipiridin) platine(IV) ([PtCl4(bipi)]) i dihloro (bipiridin) rutenijum(III)hlorida ([RuCl2(bipi)2) ]Cl)—proučavana je. Laserska desorpcija/jonizacija uz pomoć matriksa, vremenska masa spektrometrija (MALDI-TOF MS) i fluorescentna spektroskopija korišćeni su za analizu aktivnosti enzima u odsustvu i prisustvu metalnih kompleksa i za ...... Int. Ed., 2007, 46, 9062–9064. 22 R. E. Aird, J. Cummings, A. A. Ritchie, M. Muir, R. E. Morris, H. Chen, P. J. Sadler and D. I. Jodrell, Br. J. Cancer, 2002, 86, 1652–1657. 23 I. Ott and R. Gust, Arch. Pharm. (Weinheim, Ger.), 2007, 340, 117–126. 24 S. E. Pierce, R. Kieltyka, H. F. Sleiman and J. S ...
... Biochim. Biophys. Acta, 1983, 747, 93–99. 46 Q. Liu, Y. Qu, R. Van Antwerpen and N. Farrell, Biochemistry, 2006, 45, 4248–4256. 47 M. Jensen and W. Nerdal, Eur. J. Pharm. Sci., 2008, 34, 140–148. 48 G. Speelmans, W. H. H. M. Sips, R. J. H. Grisel, R. W. H. M. Staffhorst, A. M. J. Fichtinger-Schepman, J ...
... V. Amani, M. Yousefi and H. R. Khavasi, Acta Crystallogr., Sect. E: Struct. Rep. Online, 2008, 64, m905–m906. 29 T. Togano, N. Nagao, M. Tsuchida, H. Kumakura, K. Hisamatsu, F. S. Howell andM.Mukaida, Inorg. Chim. Acta, 1992, 195, 221–225. 30 B. Fuchs, J. Schiller, R. Süb, M. Schürenberg and D. ...Tina Kamčeva, Jörg Flemmig, Bojana Damnjanović, Jürgen Arnhold, Aleksandar Mijatović, Marijana Petković. "Inhibitory effect of platinum and ruthenium bipyridyl complexes on porcine pancreatic phospholipase A2" in Metallomics, Oxford University Press (OUP) (2011). https://doi.org/10.1039/c1mt00088h
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Investigating distant effects of the Moesian promontory: Brittle tectonics along the western boundary of the Getic unit (East Serbia)
In this study, we report evidence for brittle deformation in a part of the Carpatho–Balkan orogen, which is explained in terms of effects of the rigid Moesian promontory of the European plate on fault kinematics in East Serbia. We focus on the westernmost part of the Getic Unit of the East Serbian Carpatho–Balkanides, i.e. the Gornjak–Ravanica Unit, located between two main thrusts that were repeatedly activated from Early Cretaceous to recent times. We combine a new data set on ...Getikum, Mezijska jedinica, Karpato-balkanski orogen, krte deformacije, Gornjačko-ravanička jedinicaAna Mladenović, Milorad D. Antić, Branislav Trivić, Vladica Cvetković. "Investigating distant effects of the Moesian promontory: Brittle tectonics along the western boundary of the Getic unit (East Serbia)" in Swiss Journal of Geosciences, Springer (2019). https://doi.org/10.1007/s00015-018-0324-5
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A Multilingual Evaluation Dataset for Monolingual Word Sense Alignment
Sina Ahmadi, John P McCrae, Sanni Nimb, Fahad Khan, Monica Monachini, Bolette S Pedersen, Thierry Declerck, Tanja Wissik, Andrea Bellandi, Irene Pisani, [...] Ranka Stanković and others (2020)Aligning senses across resources and languages is a challenging task with beneficial applications in the field of natural language processing and electronic lexicography. In this paper, we describe our efforts in manually aligning monolingual dictionaries. The alignment is carried out at sense-level for various resources in 15 languages. Moreover, senses are annotated with possible semantic relationships such as broadness, narrowness, relatedness, and equivalence. In comparison to previous datasets for this task, this dataset covers a wide range of languages ...... German Hungarian Irish Italian Slovenian (JSI)Slovenian (ISJFR) Spanish Slovenian Portuguese Russian Number of tokens in R1 N um be r o f t ok en s in R 2 0 5000 10000 15000 20000 25000 5000 10000 50000 100000 Figure 3: Correlation between number of tokens Table 3 represents the results ...
... con Model for Ontologies: Community Report. Dahlerup, V. (1918). Ordbog over det danske sprog, vol- ume 1. Gyldendal. Dandala, B., Mihalcea, R., and Bunescu, R. (2013). Word sense disambiguation using Wikipedia. In The People’s Web Meets NLP, pages 241–262. Springer. Dónaill, N. O. and Maoileoin ...
... Darmstadt, January. Moro, A., Li, H., Krause, S., Xu, F., Navigli, R., and Uszko- reit, H. (2013). Semantic rule filtering for web-scale re- lation extraction. In International Semantic Web Confer- ence, pages 347–362. Springer. Navigli, R. and Ponzetto, S. P. (2012). BabelNet: The automatic construction ...Sina Ahmadi, John P McCrae, Sanni Nimb, Fahad Khan, Monica Monachini, Bolette S Pedersen, Thierry Declerck, Tanja Wissik, Andrea Bellandi, Irene Pisani, [...] Ranka Stanković and others . "A Multilingual Evaluation Dataset for Monolingual Word Sense Alignment" in Proceedings of the 12th Conference on Language Resources and Evaluation (LREC 2020), Marseille, European Language Resources Association (ELRA) (2020)
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Using Lexical Resources for Irony and Sarcasm Classification
The paper presents a language dependent model for classification of statements into ironic and non-ironic. The model uses various language resources: morphological dictionaries, sentiment lexicon, lexicon of markers and a WordNet based ontology. This approach uses various features: antonymous pairs obtained using the reasoning rules over the Serbian WordNet ontology (R), antonymous pairs in which one member has positive sentiment polarity (PPR), polarity of positive sentiment words (PSP), ordered sequence of sentiment tags (OSA), Part-of-Speech tags of words (POS) ...... Table 2. Table 2: Results of Irony classification on Twitter data. feature P R F1 acc set FS1 POS, OSA, M 0.504 0.530 0.517 0.817 FS2 R, OSA, M 0.605 0.486 0.539 0.845 FS3 PSP, POS, OSA, M 0.616 0.473 0.535 0.849 FS4 R, PSP, POS, OSA, M 0.658 0.458 0.540 0.856 FS5 PPR, POS, OSA, M 0.670 0.458 0.544 ...
... the help Table 3: Results of Sarcasm classification on Twitter data. feature P R F1 acc set FS1 POS, OSA, M 0.274 0.240 0.256 0.709 FS2 R, OSA, M 0.267 0.212 0.236 0.715 FS3 PSP, POS, OSA, M 0.280 0.235 0.256 0.715 FS4 R, PSP, POS, OSA, M 0.283 0.198 0.233 0.728 FS5 PPR, POS, OSA, M 0.273 0.203 0.233 ...
... tags in a tweet and irony markers (R, OSA, M) increased precision, but lowered recall. In the third experiment, adding the polarity of positive sentiment words (PSP) improved the results, which was also the case with the fourth experiment, where antonymous pairs (R) were added as a feature and the c ...Miljana Mladenović, Cvetana Krstev, Jelena Mitrović, Ranka Stanković. "Using Lexical Resources for Irony and Sarcasm Classification" in Proceedings of the 8th Balkan Conference in Informatics (BCI '17), New York, NY, USA, : ACM (2017). https://doi.org/
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Crystal structure of K3EuSi2O7
alkalni silikati elemenata retkih zemalja, kristalna struktura, sinteza metodom fluksa, rendgenska difrakcija na monokristalu... Loye, A. R. Myers, M. D. Smith, H.-C. zur Loye, CrystEngComm 18 (2016) 2294 (https://doi.org/10.1039/C6CE00177G) 7. A. M. Latshaw, J. Yeon, M. D. Smith, H.-C. zur Loye, J. Solid State Chem. 235 (2016) 100 (https://doi.org/10.1016/j.jssc.2015.12.013) 8. G. Morrison, A. M. Latshaw, N. R. Spagnuolo ...
... a starting model for structure refinement. When Er3+ was replaced with Eu3+ the model converged rapidly, and the crystal structure was refined to R = 3.5 %. The structure was refined on F2 by full-matrix least-squares techniques using the programs SHELXL.20 Selected bond lengths and angles are ...
... 298 Observed [I> 2σ(I)] reflections 392 a / Å 9.9512 (3) Rint 0.077 c / Å 14.4480 (4) (sin θ/λ)max / Å−1 0.641 α / ° 90 Refinement γ / ° 120 R[F2> 2σ(F2)] 0.035 V / Å3 1239.05 (8) wR(F2) 0.069 Z 6 S 1.13 Radiation type Mo Kα No. of reflections 528 µ / mm−1 9.39 No. of parameters 40 ...Sabina Kovač, Predrag Dabić, Aleksandar Kremenović. "Crystal structure of K3EuSi2O7" in Journal of the Serbian Chemical Society, National Library of Serbia (2021). https://doi.org/10.2298/JSC210218026K
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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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Hibridni sistem za planiranje i analizu ventilacije rudnika
... the book ili pomnoženo sa r 0 rr r 2 2 = ∂ θ∂+ ∂ θ∂ . (6.19) Prikazane jednačine definišu promenu temperature θ u pravcu poluprečnika od centralne linije vazdušne struje. Uvođenjem smene: r rs ∂ θ∂= , (6.20) i njenim diferenciranjem po r, dobija se: rr r r s 2 2 ∂ θ∂+ ∂ θ∂= ∂ ∂ ...
... 21 r r lnb , (6.27) odakle je: θ−θ= 2 1 21 r r ln b . (6.28) Vrednost konstante D definišemo iz izraza (6.25), ili )rln(bC 11 −θ= , (6.29) Zamenom izraza za b i C u jednačini (6.24) dobija se: )rln()rln(b 11 θ+=θ , (6.30) odnosno, 1 1 1 1 21 1 1 r r ln ...
... prirasta toplote duž pravaca r, Φ i z. Priraštaj unutrašnje energije u elementu duž pravca r određuje se na osnovu razlike toplotnog fluksa koji ulazi u element u pravcu ose r, i fluksa koji izlazi iz elementa u istom pravcu. Osnova elementa u pravcu ose r ima površinu r dΦ dz. Zakrivljenost ove površi ...Nikola Lilić, Ranka Stanković, Ivan Obradović. Hibridni sistem za planiranje i analizu ventilacije rudnika, Rudarsko-geološki fakultet, Univerzitet u Beogradu, 2000
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Development of integrated fuzzy model for mine management optimization
Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić (2023)... D-> 552 d|| _—R — L — j=1 i=1 j=1 jel jcl je1 Mdj XOsj M i=l i=l i=1 Step 3. The degree of possibility of two triangular fuzzy numbers is deter- mined using; the fuzzy number comparison approach: V(M, > W)= sup |min (Jr, () , R,Ma (9))] . z>u If there are such pairs (z,y) that r > y and a (T) ...
... relative importance. On the other hand, mathematical optimization calculations are performed apply- ing the fuzzy analytic hierarchy process FAHP [3 r)] to select the optimal mining; echnology. The great advantage of fuzzy logic and heuristic methods need to be empha- sized in connection with ...
... l optimization begins with predefined criteria that affect the selection of one of several alternatives. Then a matrix of criterion X is con- C. R. Acad. Bulg. Sci., 76, No 9, 2023 1415 structed with fuzzy numbers assigned by the decision maker (expert) using the FAHP scale. Step 2. An extent ...Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić. "Development of integrated fuzzy model for mine management optimization" in Comptes rendus de l'Académie Bulgare des Sciences (2023)
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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 ...... SRPNER achieved the best precision, in all cases (except one) STANFORD NER achieved the best recall, 1065 SPACY NER SRPNER STANFORD NER model P R F1 P R F1 P R F1 S T U D E N T S PERS_1 0.804 0.827 0.815 0.857 0.847 0.852 0.729 0.887 0.800 PERS_3 0.815 0.807 0.811 0.837 0.827 0.832 0.748 0.873 0.806 ...
... sults, on texts coming from different sources they obtained the following results: for Croatian P = 0.91, R = 0.93 and F1 = 0.92, higher than STANFORD NER for the model PERS_1, and for Slovene P = 0.82, R = 0.87 and F1 = 0.84, comparable with STANFORD NER for the model PERS_1 (Table 6). One should note, however ...
... approximately the same number of personal names as our both sets – around 900. Their results were for STANFORD NER P = 0.72, R = 0.87 and F1 = 0.79, and for SPACY NER P = 0.73, R = 0.73 and F1 = 0.73. Our re- sults are comparable in the sense that they also show that STANFORD NER achieves the best re- ...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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Antioxidant and antimicrobial activity of some tetradentate Schiff bases and their Cu (II) complexes
Aleksandar Mijatović, Milan Nikolić, Snežana Spasić, Aleksandra N. Žerađanin, Kristina Joksimović, Aleksandar Lolić, Rada Baošić (2020)Šifove baze i njihovi Cu(II) kompleksi su poznati po svojoj biološkoj aktivnosti. U ovom radu proučavana je antibakterijska aktivnost protiv gram-negativnih sojeva Escherichia coli, Pseudomonas aeruginosa i Staphilococcus piogenes, kao i Gram-pozitivnih Staphilococcus piogenes i Pseudomonas aeruginosa, zajedno sa antifungalnim dejstvom protiv Musperg strainilusa, A. Takođe, tehnički jednostavni i brzi testovi kao što su ABTS, HORAC i ORAC korišćeni su za ispitivanje antioksidativne aktivnosti kako bi se uporedili dobijeni rezultati sa različitim tipovima testova. Uprkos tome što je princip ...Aleksandar Mijatović, Milan Nikolić, Snežana Spasić, Aleksandra N. Žerađanin, Kristina Joksimović, Aleksandar Lolić, Rada Baošić. "Antioxidant and antimicrobial activity of some tetradentate Schiff bases and their Cu (II) complexes" in XIII Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, University in Banjaluka, Faculty of Technology (2020)
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Отварање и припрема лежишта за примену коморно-стубних метода откопавања
Никола Станишић (2024)Циљ мастер рада је да кроз теоријски преглед и практични пример, прикаже процес отварања и припреме лежишта за примену коморно-стубне методе окопавања. Предмет рада је мало лежиште олово-цинкане руде, а од варијација коморно-стубних метода откопавања, изабрана је коморно-стубна метода етажног откопавања са откопавањем одoздо на доле. Рад се бави темама одабира и описа начина отварања и припреме лежишта, методама откопавања, технологијом израде просторија и откопавања лежишта, организацијом рада и проценом трошкова и економичности експлоатације.... 2 542 S SS| R ĐOS|C |. 8 R - F| [} <= | p a | |-- o o e s s = 2390 E 5 —>ls = 5 ! R |swW O Pi Š _ A K q s S|SS S BZI G = 4 e S » S [5] & ~ = Ž~ |NNB—" & Z as R S|x Z iibod s ++ s |2 FN 9 |8B M Ps|& =*|B8 P|i |s Š|5 % ~ a | |3 sR o o| 5 s OKI x w [j o = o -B_ | |j = Š |7 P 9 57 | > R = |j i |= = ...
... K o n n u n H a H 3 M H H H p a H o O r Cp ej ub a Jn yk HH a T p a H c n o p r a K a n a u u r e r K a M u H o H a (3 a /I Ba Y k y n H o Bp eM e yr oB ap a H Uu ac oB Ha no Tp ot im ba ro pH Ba Il or po mi »3 a r o p u B a 10 T O H H Ma T. ...
... u mpaucnopma wamepujana Ha omkonagarby Jeorcuuma Ma re pu ja jn a Tp au Hc no pr a C H a r a Mo To pa TI or po ur t» 24 ry Ma I I o r p o m i m a yj ba o r o H u M a r e p u j a j a Cp en mb a 0p 3u Ha Ho cu go cr T Ka tt nk e K a M H O H a y CM eH ...Никола Станишић . Отварање и припрема лежишта за примену коморно-стубних метода откопавања, 2024
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Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan”
... open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs 323 Aleksandar Milutinovic et al. REM: R. Esc. Minas, Ouro Preto, 68(3), 323-330, jul. sep. | 2015 Abstract Mining projects for mineral resource mining contain in certain cases speci�c technical ...
... the pos- sible expansion of open pit established that open pit mining of this part of the deposit was not economically justi�ed at the mo- REM: R. Esc. Minas, Ouro Preto, 68(3), 323-330, jul. sep. | 2015324 Mine surveying works for the purpose of excavating the remaining reserves of bauxite in ...
... 2km; the main ventilation down- cast; drifts H-484 and H-448; power substation chamber at level +448m. 325 Aleksandar Milutinovic et al. REM: R. Esc. Minas, Ouro Preto, 68(3), 323-330, jul. sep. | 2015 4. Selection of opening and development solutions The opening, development and excavation ...Aleksandar Milutinović, Aleksandar Ganić, Thamer Rayes Diyab, Rade Tokalić, Meri Ganić. "Mine surveying works for the purpose of excavating the remaining reserves of bauxite in the deposit of “Podbracan”" in Revista Escola de Minas, School of Mines Magazine, Sao paulo, Brasil : SciELO (2015)