Претрага
2212 items
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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)
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Hidrogeologija kalkšista i mermera Božičke i Lisinske serije Vlasinskog kristalastog kompleksa
Veselin Dragišić, Vladimir Živanović, Nebojša Atanacković, Sava Magazinović, Saša Stojadinović, Sunčica Ninković (2024)Vlasinski kristalasti kompleks je dugi niz godina u pogledu vodonosnosti smatran bezvodnim, kao i ostali kristalasti kompleksi Srbije. Rezultati brojnih geoloških i hidrogeoloških istraživanja, kao i iskustva iz rudarskih radova na eksploataciji polimetaličnih ruda, demantuju takva shvatanja, posebno kad su u pitanju Lisinska i Božička serija u okviru kojih značajno mesto zauzimaju kalkšisti i mermeri. Za poznavanje hidrogeoloških karakteristika pomenutih serija, posebno su značajni rezultati dobijeni realizacijom hidrogeoloških istraživanja za potrebe punionice flaširanih voda „Rosa“, izradom istražnih i eksploatacionih ...hidrogeologija kristalastih škriljaca, kalkšisti i mermeri, režim izvora, ultra malo mineralizovane vode, Božička i Lisinska serijaVeselin Dragišić, Vladimir Živanović, Nebojša Atanacković, Sava Magazinović, Saša Stojadinović, Sunčica Ninković. "Hidrogeologija kalkšista i mermera Božičke i Lisinske serije Vlasinskog kristalastog kompleksa" in XVII Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem , Pirot, Srbija, 02-06. oktobar 2024, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet (2024). https://doi.org/10.5281/zenodo.13739633
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Determination of Mechanical Properties of Altered Dacite by Laboratory Methods
This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović. "Determination of Mechanical Properties of Altered Dacite by Laboratory Methods" in Minerals, MDPI AG (2021). https://doi.org/10.3390/min11080813
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Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach
Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2021)Poor water solubility of new chemical entities is considered as one of the main obstacles in drug development, as it usually leads to low bioavailability after administration. To overcome these problems, the selection of the appropriate formulation technology needs to be based on the physicochemical properties of the drug and introduced in the early stages of drug research. One example of the new potential drug substance with poor solubility is DK-I-60-3, deuterated pyrazoloquinolinone, designed for the treatment of various neuropsychiatric ...Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić. "Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach" in Pharmaceutics, MDPI, Basel, Switzerland (2021). https://doi.org/10.3390/pharmaceutics13081188
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Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases
Ispitivani su uticaji primene mono- i dvokomponentnih organskih modifikatora na određivanje lipofilnosti 12 tetradentatnih Šifovih baza metodom reverzno-fazne tankoslojne hromatografije. Osnovni cilj je da se proceni tip interakcije između posmatranih jedinjenja i komponenti primenjenih hromatografskih sistema i uspostavi neki obrazac ponašanja kako bi se lakše izabrala kombinacija organskih modifikatora koji će simulirati interakciju u biološkim sistemima na osnovu činjenica da iste osnovne intermolekularne interakcije su odgovorne za ponašanje supstanci i u biološkom i u hromatografskom sistemu. Primenjeni organski modifikator ...Nikola Stevanović, Aleksandar Mijatović, Aleksandar Lolić, Mario Zlatović, Rada Baošić. "Influence of mono- and two-component organic modifiers on determination of lipophilicity of tetradentate Schiff bases" in Chemical Papers, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s11696-021-01884-5
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Topic Modeling of the SrpELTeC Corpus: A Comparison of NMF, LDA, and BERTopic
Modeliranje tema je efikasan način da se dobije uvid u velike količine podataka. Neki od najčešće korišćenih metoda za modeliranje tema su Latentna Dirihleova alokacija (LDA) i faktorizacija nenegativne matrice (NMF). Međutim, sa porastom modela samopažnje i unapred obučenih jezičkih modela, pojavili su se novi načini za ekstrakcju tema. BERTopic predstavlja novi pristup modeliranju tema. U ovom radu smo uporedili performanse LDA, NMF i BERTopic na književnim tekstovima na srpskom, merenjem koherentnosti tema i raznovrsnosti tema, kao i kvalitativnom ...Teodora Mihajlov, Milica Ikonić Nešić, Ranka Stanković, Olivera Kitanović. "Topic Modeling of the SrpELTeC Corpus: A Comparison of NMF, LDA, and BERTopic" in Annals of Computer Science and Information Systems, IEEE (2024). https://doi.org/10.15439/2024F1593
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Pliocene deposits and the Pliocene/Quaternary boundary on the northern slope of Fruska Gora (Serbia) – new data based on an integrated study
Rundić Ljupko, Vasić Nebojša, Knežević Slobodan, Cvetkov Vesna. "Pliocene deposits and the Pliocene/Quaternary boundary on the northern slope of Fruska Gora (Serbia) – new data based on an integrated study" in The 4th International Workshop on the Neogene from the Central and South-Eastern Europe, Slovak Republic, Abstracts and Guide of Excursion, September, 12 – 16, 2011, Banská Bystrica:Faculty of Natural Sciences, Matej Bel University (2011): 63-65
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Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and reduced distances at “Nepričava“ open pit mine
Suzana Lutovac, Sanja Bajić, Marina Ravilić, Radmila Gaćina. "Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and reduced distances at “Nepričava“ open pit mine" in Underground Mining Engineering, Belgrade : University of Belgrade, Faculty of Mining and Geology (2015). https://doi.org/10.5937/podrad1526009L
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A new analytical method for determination of discharge duration in tunnels subjected to groundwater inrush
Mohsen Golian, Ebrahim Sharifi Teshnizi, Mario Parise, Josip Terzić, Sasa Milanović, Vesna Ristić Vakanjac, Masoud Mahdad, Mehdi Abbasi, Hossein Taghikhani, Habib Saadat (2021)Mohsen Golian, Ebrahim Sharifi Teshnizi, Mario Parise, Josip Terzić, Sasa Milanović, Vesna Ristić Vakanjac, Masoud Mahdad, Mehdi Abbasi, Hossein Taghikhani, Habib Saadat. "A new analytical method for determination of discharge duration in tunnels subjected to groundwater inrush" in Bulletin of Engineering Geology and the Environment, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10064-021-02140-6
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Geomorfološke posledice poplava 2014. godine u karstu Dževrinske grede (istočna Srbija)
The year 2014 was the year of extremely large floods in Serbia. The territories of municipalities Kladovo and Negotin, along the Danube course in Eastern Serbia, were among the worst affected, mostly by flash floods. The karst ridge of Dževrinska Greda, a typical contact karst and stripe karst environment formed within Upper Jurassic limestones, suffered significant morphological changes in terms of heavy washout of sediments on one hand (in fluviokarstic gorges and active cave passages), and on the other ...Jelena Ćalić, Dejan Jeremić, Ana Mladenović. "Geomorfološke posledice poplava 2014. godine u karstu Dževrinske grede (istočna Srbija)" in Knjiga apstrakata 10. Simpozijuma o zaštiti karsta, Beograd : Akademski speleološko-alpinistički klub (2023.)
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Definition of criteria and alternatives for choosing the optimal mining method deposits when applying multi – criteria optimization
Sanja Bajić, Dragoljub Bajić, Branko Gluščević, Radmila Gaćina, Josip Išek. "Definition of criteria and alternatives for choosing the optimal mining method deposits when applying multi – criteria optimization" in Underground mining engineering, University of Belgrade, Faculty of Mining and Geology (2024)
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Hydrogeochemical characteristics and their basic types thermomineral waters in Serbia
Krunić Olivera (2010)Krunić Olivera. "Hydrogeochemical characteristics and their basic types thermomineral waters in Serbia" in XXXVIII IAH Congress Groundwater Quality Sustainability, Book of abstracts 1, Krakow Poljska:University of Silesia Press (2010): 641-643
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Insights into the smoothing and burnishing of ceramic surface
Ionescu Corina, Hoeck Volker, Crandell Otis, Šarić Kristina. "Insights into the smoothing and burnishing of ceramic surface" in 21st Meeting of the International Mineralogical Association, 1-5 September 2014, Johannesburg, South Africa, Johannesburg: (2014): 355-355
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Neogene to Quaternary history of Fruška Gora Mountain (Serbia): status and current studies
Rundić Ljupko (2011)Rundić Ljupko. "Neogene to Quaternary history of Fruška Gora Mountain (Serbia): status and current studies" in Annual Meeting of Stratigraphic/Paleontological Section of Hungarian Geological Society, Szeged, Hungary:HGS, Budapest (2011): 33-34
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The use of geothermal energy for heating roads and open areas, Serbia, Europe
Milenić Dejan, Vranješ Ana (2014)Milenić Dejan, Vranješ Ana. "The use of geothermal energy for heating roads and open areas, Serbia, Europe" in Proceedings of the Grand Renewable Energy, Tokyo, Japan (2014)
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Conditions for efficiency of open pit medium voltage power transformers
Aleksandrović Snežana (2017)Aleksandrović Snežana. "Conditions for efficiency of open pit medium voltage power transformers" in 3rd Virtual International Conference on Science, Technology and Management in Energy no. 3, Niš, Serbia:Research and Development Center “ALFATEC” (2017): 77-81
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Fish-otoliths from the marine-brackish water transition of Middle Miocene strata of Belgrade, Serbia
Schwarzhans Werner, Bradić Katarina and Rundić Ljupko. "Fish-otoliths from the marine-brackish water transition of Middle Miocene strata of Belgrade, Serbia" in Paläontologische Zeitschrift 4 no. 98, Berlin:Springer (2015): 815-837. https://doi.org/10.1007/s12542-015-0272-6
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The Miocene fossiliferous sites of the Avala Mt. (Belgrade area, Serbia) and their importance
Rundić Ljupko, Knežević Slobodan (2017)Rundić Ljupko, Knežević Slobodan. "The Miocene fossiliferous sites of the Avala Mt. (Belgrade area, Serbia) and their importance" in Bulletin of the Natural-History Museum in Belgrade no. 10, Belgrade:Natural history museum in Belgrade (2017): 29-41. https://doi.org/10.5937/bnhmb1710029R
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The revision of Quaternary stratigraphy of the Sombor and Subotica artesian well borehole profiles (Bačka, Vojvodina, Serbia)
Gaudenyi Tivadar, Nenadić Draženko, Jovanović Mlađen, Stejić Petar. "The revision of Quaternary stratigraphy of the Sombor and Subotica artesian well borehole profiles (Bačka, Vojvodina, Serbia)" in Quaternary International no. 478 (2018): 97-107
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Otoliths in situ from Serbia (stratigraphical, paleoecological and paleogeographical significance)
Bradić-Milinović Katarina, Schwarzhans Werner. "Otoliths in situ from Serbia (stratigraphical, paleoecological and paleogeographical significance)" in Zbornik radova XVIII Kongres geologa Srbije, Divčibare, 1-4 jun 2022 god, Srpsko geološko društvo (2022)