Претрага
2655 items
-
A new polymorph of Ba(AsO3OH): Synthesis, crystal structure and vibrational spectra
Tamara Đorđević, Ljiljana Karanović (2010)A new monoclinic polymorph of Ba(AsO3OH) was synthesized under hydrothermal conditions. It represents a previously unknown structure type. Its crystal structure was determined from a racemic twin using single-crystal X-ray diffraction data collected at 120 and 293 K [space group P21, a=7.2149(14)/7.2370(2), b=7.7028(15)/7.7133(2), c=21.7385(43)/21.8079(5) Å, β=95.95(3)/96.073(1)1, V=1201.6(4)/1210.51(5) Å3, Z=12]. The crystal structure of P21-Ba(AsO3OH) has a layered character and is built up of four types of regularly alternating layers parallel to (0 0 1). Every AsO3OH tetrahedron is chelating to two Ba atoms and ...Ba(AsO3OH), хидротермална синтеза, структурна анализа монокристала, Раманска спектроскопија, инфрацрвена спектроскопија, водоничне везе, хидрогенарсенати земноалкалних металаTamara Đorđević, Ljiljana Karanović. "A new polymorph of Ba(AsO3OH): Synthesis, crystal structure and vibrational spectra" in Journal of Solid State Chemistry, Elsevier BV (2010). https://doi.org/10.1016/j.jssc.2010.09.027
-
Preliminary impact assessment of No2 emission from a heating plant on air pollution: case of Zemun, Serbia
The aim of this paper is to provide a preliminary evaluation of the impact caused by NO2 emissions from a heating plant on the local air quality. To model the spatial distribution of NO2 emissions from the heating plant, the AERMOD model was employed. The evaluation was conducted by analyzing and contrasting the simulated NO2 concentration from the heating plant with the overall NO2 concentration recorded at the nearest monitoring station over the entire heating season. The study focused ...Boban Pavlović, Uroš Pantelić, Marija Živković, Dejan Ivezić. "Preliminary impact assessment of No2 emission from a heating plant on air pollution: case of Zemun, Serbia" in Environmental Engineering and Management Journal (2023). https://doi.org/10.30638/eemj.2023.086
-
Unusually sluggish microemulsion system with water, toluene and a technical branched alkyl polyethoxylate
Marija Ilić, Franz-Hubert Haegel, Vesna Pavelkić, Snežana Zlatanović, Zoran Marković, Aleksandar Cvjetić (2015)Microemulsion systems with water, toluene and nonionic surfactants are interesting for application due to the excellent solvent properties of aromatic hydrocarbons. In this study, the pseudo-binary phase diagram (“fish-diagram”) of such a ternary system was investigated using a branched technical alkyl polyethoxylate. Lutensol ON 50 (i-C10E5) was considered a suitable surfactant. The system with technical branched i-C10E5 exhibits very long, and for compositions near optimum solubilization, i.e., the minimum content of surfactant needed for a bicontinuous microemulsion, extremely long ...микроемулзија, толуен, оксоалкохол етоксилат, термодинамичка стабилност, тернарни фазни дијаграми, дијаграми „fish“Marija Ilić, Franz-Hubert Haegel, Vesna Pavelkić, Snežana Zlatanović, Zoran Marković, Aleksandar Cvjetić. "Unusually sluggish microemulsion system with water, toluene and a technical branched alkyl polyethoxylate" in Chemical Industry and Chemical Engineering Quarterly (2015). https://doi.org/10.2298/CICEQ141012045I
-
An example of groundwater modeling to predict impact of climate change and to support optimization of a new intake
Polomčić Dušan, Stevanović Zoran, Ristić-Vakanjac Vesna, Dokmanović Petar, Milanović Saša. "An example of groundwater modeling to predict impact of climate change and to support optimization of a new intake" in Proceedings of EGU 2012 - Geophysical Research Abstract, Vol 14, 22-27.04. Vienna, Vienna: (2012): 4971-4971
-
Underground piracy of Raška spring and concept for delineation of catchment area and estimation of karst groundwater budget elements
Ristić-Vakanjac Vesna, Stevanović Zoran, Čokorilo Ilić Marina. "Underground piracy of Raška spring and concept for delineation of catchment area and estimation of karst groundwater budget elements" in Proceedings of the DIKTAS Conference: “Karst without boundaries”, Trebinje, June 11-15 2014, Trebinje:DIKTAS Project : Grafokomerc (2014): 201-206
-
The importance of optical investigations for determination of the quality of architectural stones
Matović Vesna, Srećković Batoćanin Danica, Erić Suzana, Matović Nenad, Šarić Kristina. "The importance of optical investigations for determination of the quality of architectural stones" in Proceedings / 1th International Conference Harmony of Nature and Spirituality in Stone, 17-18 March 2011, Kragujevac, Belgrade:Stone Studio Association (2011): 113-124
-
Assesment of the digging force for underwater coal mining
Чебашек Владимир, Гојковић Небојша, Бошковић Звонимир, Димитријевић Бојан, Рупар Вељко. "Assesment of the digging force for underwater coal mining" in 7th Balkan Mining Congress BALKANMINE 2017 no. Book of proceedings I, Prijedor, Republik of Srpska:University of Banja Luka Faculty of Mining Prijedor, Mining Institute Belgrade Ltd. (2017): 279-287. https://doi.org/10.7251/BMC170701279C
-
Geochemical properties of the sediments of the Great War Island, Belgrade (Serbia)
Zarić Nenad, Šajnovič Aleksandra, Jovančićević Branislav, Baltić Nevena, Ranđelović Dragana, Kašanin-Grubin Milica (2017)Zarić Nenad, Šajnovič Aleksandra, Jovančićević Branislav, Baltić Nevena, Ranđelović Dragana, Kašanin-Grubin Milica. "Geochemical properties of the sediments of the Great War Island, Belgrade (Serbia)" in Book of Abstracts of the18th European Meeting on Environmental Chemistry - EMEC18: Chemistry Towards an Infinite Environment, :Association of Chemistry and the Environment (2017): 241-242
-
Modelling of coal seam of the deposit Đurđevik (BIH) by means of 2D reflective seismic
Arsenović Siniša, Urošević Milovan, Sretenović Branislav, Cvetkov Vesna, Životić Dragana. "Modelling of coal seam of the deposit Đurđevik (BIH) by means of 2D reflective seismic" in Journal of Geophysics and Engineering 13 no. 3, Bristol, UK:IOP Publishing (2016): 422-428. https://doi.org/10.1088/1742-2132/13/3/422
-
Freshwater gobies (Teleostei, Gobiidae) from the early Miocene of Klinci (Serbia), with otoliths in situ
Katarina Bradić-Milinović, Harald Anhelt, Ljupko Rundić, Werner Schwarzhans. "Freshwater gobies (Teleostei, Gobiidae) from the early Miocene of Klinci (Serbia), with otoliths in situ" in 8th Workshop on "Neogene of Central and South-Eastern Europe", 27th - 31st May 2019, Chęciny, Poland, Warsaw : University of Warsaw; Faculty of Geology; Institute of Geology (2019)
-
Razvoj modela upravljanja cirkulacijom u postupku bušenja korišćenjem neuro fazi sistema zaključivanja
Seyed Ali S. Razeghi (2022)Gubitak isplake predstavlja nekontrolisano isticanje bušaćeg fluida kroz formacije kao što su kaverne, pukotine, ili drugi slojevi. Tradicionalne metode procene gubitka isplake se zasnivaju na primeni seizmičkih podataka ili pronalasku „mesta“ gubitka isplake na osnovu raspoloživih podataka iz susednih bušotina. Međutim, ove metode procene nisu pouzdane.‘ U disertaciji je izvršena analiza i procena uticaja parametara bušenja, geoloških faktora, karakteristika formacije i fluida na gubitak isplake kao i na formiranje fraktura u formacijama. Uspostavljeni su modeli koji podrazumevaju proces obrade ...Seyed Ali S. Razeghi. Razvoj modela upravljanja cirkulacijom u postupku bušenja korišćenjem neuro fazi sistema zaključivanja, Beograd : [S. Razeghi], 2022
-
Epidotizacija sanidina u kvarclatitima Grota
Propilitska alteracija je veoma česta u gornjokredno-tercijarnim vulkanitima Srbije. Kvarclatiti Grota, otkriveni na dubini od oko 550 m u jednoj od istražnih bušotina su holokristalaste porfirske strukture sa fenokristalima sanidina dimenzija i do 1,5 x 2 cm. Optičkim ispitivanjima su u kvarclatitu potvrdjeni i elementi sitaste, pojkilitske i glomeroporfirske strukture. Kao fenokristali prisutni su sanidin, plagioklas, kvarc, biotit i amfiboli. Sekundarni minerali su hlorit, epidot, coisit, Fe-hidroksidi, redak kalcit i ilit. U fenokristalima sanidina se zapažaju „lepeze“ izduženih kristala ...Danica Srećković-Batoćanin, Suzana Erić, Nikola Novičić, Nikola Pašajlić, Natalija Batoćanin. "Epidotizacija sanidina u kvarclatitima Grota" in III Congress of Geologists of Bosnia and Herzegovina with international participation, Neum, 21. – 23.09.2023, Ilidža : Udruženje/udruga geologa u Bosni i Hercegovini (2023)
-
The principles of geological economical evaluation of mineral deposits applied to the evaluation of the Akashat phosphate deposit (Iraq)
Falah Jaber (1971)Falah Jaber. The principles of geological economical evaluation of mineral deposits applied to the evaluation of the Akashat phosphate deposit (Iraq), Beograd:Rudarsko Geološki Fakultet, 1971
-
Roots of trinomials of bounded height
Stankov Dragan (2014)Stankov Dragan. "Roots of trinomials of bounded height" in International Conference. 13th Serbian Mathematical Congress, Maj, 22-25, 2014, Vrnjačka Banja, Serbia : Book of Abstracts, Niš:Faculty of Sciences and Mathematics (2014): 11
-
Rudničke vode olovo-cinkovih ležišta u rudnom polju „Blagodat“ u jugoistočnoj Srbiji
Nebojša Atanacković, Veselin Dragišić, Vladimir Živanović, Ivana Cvejić, Saša Stojadinović, Ivana Jocić (2022)Rudno polje Blagodat sa više ležišta i pojava olovo-cinkovih ruda nalazi se u krajnjem jugoistočnom delu Srbije, blizu granica sa Bugarskom i Severnom Makedonijom. Eksploatacija ovog resursa vrši se podzemno u okviru rudnika Grot, ranije Blagodat. Prilivi podzemnih (rudničkih) voda u jamske radove rudnika Grot su visoki i iznose oko 130 l/s (septembar 2019), što ga trenutno svrstava u najovodnjenije rudnike sa podzemnom eksploatacijom u Srbiji. Nezavisno od njih, iz obližnjeg potkopa P-1 u ležištu Kula, ističe još 25 ...Nebojša Atanacković, Veselin Dragišić, Vladimir Živanović, Ivana Cvejić, Saša Stojadinović, Ivana Jocić. "Rudničke vode olovo-cinkovih ležišta u rudnom polju „Blagodat“ u jugoistočnoj Srbiji" in Zbornik radova XVI srpskog Simpozijum o hidrogeologiji sa međunarodnim učešćem, Univerzitet u Beograd, Rudarsko-geološki fakultet (2022)
-
Analiza seizmičkog dejstva eksplozije pri miniranju na primeru izrade tunela Golubac kod Golupca
Savremeno rudarstvo, a pogotovo masovna eksploatacija metaličnih ležišta, ne bi se mogla zamisliti bez primene eksploziva. Rudarstvo je privredna grana, gde su eksplozivi našli najširu primenu za eksploataciju čvrstih mineralnih sirovina. Primena energije eksploziva dovodi do poboljšanja tehničkoekonomskih pokazatelja pri eksploataciji mineralnih sirovina, ali i do pojave negativnih efekata koji prate radove na miniranju. Eksplozivni materijali u rudarstvu, geologiji i drugim delatnostima, svojim dejstvom narušavaju prirodnu sredinu u vidu drobljenja, razbacivanja komada stene, vazdušnih udara, pojave sezmičkih efekata, pojave ...Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac. "Analiza seizmičkog dejstva eksplozije pri miniranju na primeru izrade tunela Golubac kod Golupca" in XV Međunarodna konferencija OMC 2022, Zlatibor, 12-15. oktobar 2022., Jugoslovenski komitet za površinsku eksploataciju (2022)
-
Sustainable use of groundwater resources in terms of increasing the capacity of two interconnected groudwater sources: a case study Bečej (Serbia)
Polomčić Dušan, Đekić Milan, Milosavljević Zoran, Popović Zorica, Milaković Miroslav, Ristić-Vakanjac Vesna, Krunić Olivera (2011)Polomčić Dušan, Đekić Milan, Milosavljević Zoran, Popović Zorica, Milaković Miroslav, Ristić-Vakanjac Vesna, Krunić Olivera. "Sustainable use of groundwater resources in terms of increasing the capacity of two interconnected groudwater sources: a case study Bečej (Serbia)" in 11 th International Multidisciplinary Scientific Geo conference / EXPO SGEM 2011-Modern Menagement of Mine Producing, Geology and Environmental Protection, Sofija, Bugarska:International Multidisciplinary Scientific GeoConference & EXPO SGEM (2011): 599-605
-
Quantifying the impact of Tamnava - West field drainage system of the surface pit on groundwater regime of Kalenić regional landfill
Dušan Polomčić, Dragoljub Bajić, Vesna Ristić Vakanjac, Tomislav Šubaranović. "Quantifying the impact of Tamnava - West field drainage system of the surface pit on groundwater regime of Kalenić regional landfill " in Proceedings of the VIII Balkan Mining Congress, Belgrade, Serbia, 28. - 30. September 2022, Belgrade : Mining Institute Belgrade (2022)
-
In vitro and in silico study of the biological activity of tetradentate Schiff base copper(II) complexes with ethylenediamine-bridge
Aleksandar Mijatović, Nevenka Gligorijević, Dušan Ćoćić, Snežana Spasić, Aleksandar Lolić, Sandra Aranđelović, Milan Nikolić, Rada Baošić (2023)The biological activity of six structurally similar tetradentate Schiff base copper(II) complexes, namely [Cu(ethylenediamine-bis-acetylacetonate)] (CuAA) and five derivatives where two methyl groups are replaced by phenyl, (CuPP), CF3 (CuTT) or by mixed groups CH3/CF3 (CuAT), Ph/CF3 (CuPT), and Ph/CH3 (CuAP) has been investigated. The set of antioxidant assays was performed, and the results were expressed as IC50 and EC50 values. The series of complexes showed interesting bioactivity and were investigated for the determination of antioxidant, antifungal, antimicrobial, and cytotoxic ...Aleksandar Mijatović, Nevenka Gligorijević, Dušan Ćoćić, Snežana Spasić, Aleksandar Lolić, Sandra Aranđelović, Milan Nikolić, Rada Baošić. "In vitro and in silico study of the biological activity of tetradentate Schiff base copper(II) complexes with ethylenediamine-bridge" in Journal of Inorganic Biochemistry, Elsevier BV (2023). https://doi.org/10.1016/j.jinorgbio.2023.112224
-
Distribution Modulo One of the Sum of Powers of a Salem Nubmer
Stankov Dragan (2015)Stankov Dragan. "Distribution Modulo One of the Sum of Powers of a Salem Nubmer" in Šesti simpozijum Matematika i primene zbornik radova, Beograd:Univerzitet u Beogradu Matematički fakultet (2015)