Претрага
109 items
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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
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An example of karst catchment delineation for prioritizing the protection of an intact natural area
Vesna Ristić Vakanjac, Zoran Stevanović, Aleksandra Maran Stevanović, Boris Vakanjac, Marina Čokorilo Ilić (2015)Проучавано је карстни извор Перућац као главни дрен подручја планине Таре у западној Србији у циљу процене његовог режима отицања, резерви воде и дефинисања његове сливне површине. Извор се налази у североисточној, унутрашњој зони класичног динарског крша, коју карактерише доминантно проширење висококарстификованих тријаских кречњака, слабо развијена хидрографска мрежа са много понора и густе шуме. Тара је један од пет националних паркова у Србији. Циљ рада је био да се идентификује заштитна зона високог приоритета у оквиру очуваног природног подручја ...Vesna Ristić Vakanjac, Zoran Stevanović, Aleksandra Maran Stevanović, Boris Vakanjac, Marina Čokorilo Ilić. "An example of karst catchment delineation for prioritizing the protection of an intact natural area" in Environmental Earth Science (2015). https://doi.org/10.1007/s12665-015-4390-y
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Calculative image analysis of oxidation induced food colour changes
L. Pezo, M. Pavlović, S. Ostojić, Kovačević Olgica, Zlatanović Snežana, Ilić Marija, Gvozdenović Jasna (2010)L. Pezo, M. Pavlović, S. Ostojić, Kovačević Olgica, Zlatanović Snežana, Ilić Marija, Gvozdenović Jasna. "Calculative image analysis of oxidation induced food colour changes" in Rizici i eko -bezbednost u postmodernom ambijentu -Internacionalna konferencija, septembar 19-12 jun, Novi Pazar, Novi Pazar:Državni univerzitet u Novom Pazaru (DUNP) (2010): 125-131
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Verification of catchment size using the water balance equation
Ristić Vakanjac Vesna, Marinović Veljko, Nikić Zoran, Polomčić Dušan, Čokorilo Ilić Marina, Bajić Dragoljub (2016)Ristić Vakanjac Vesna, Marinović Veljko, Nikić Zoran, Polomčić Dušan, Čokorilo Ilić Marina, Bajić Dragoljub. "Verification of catchment size using the water balance equation" in Proceedings of the 3rd Congress of Geologists of Republic Macedonia, Struga: (2016): 191-198
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Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija
Krstić Aleksandar, Lolić Aleksandar, Ilić Marija, Mijatović Aleksandar, Zlatanović Snežana, Nedić Zoran, Pavelkić Vesna (2015)Krstić Aleksandar, Lolić Aleksandar, Ilić Marija, Mijatović Aleksandar, Zlatanović Snežana, Nedić Zoran, Pavelkić Vesna. "Određivanje sadržaja kiselih funkcionalnih grupa na površini biougljeva primenom Boehm-ovih titracija" in 52. savetovanje Srpskog hemijskog društva, мaj 2015, Novi Sad, Srbija, Abstract AH P 5: Srpsko hemijsko društvo (2015): 16
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Karstification depth and storativity as main factors of karst aquifer regimes: some examples from southern Alpine branches (SE Europe and Middle East)
Zoran Stevanović, Vesna Ristić-Vakanjac, Saša Milanović, Ljiljana Vasić, Branislav Petrović, Marina Čokorilo-Ilić (2015)Zoran Stevanović, Vesna Ristić-Vakanjac, Saša Milanović, Ljiljana Vasić, Branislav Petrović, Marina Čokorilo-Ilić. "Karstification depth and storativity as main factors of karst aquifer regimes: some examples from southern Alpine branches (SE Europe and Middle East)" in Environmental Earth Sciences, Springer Science and Business Media LLC (2015). https://doi.org/10.1007/s12665-015-4046-y
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Mathematical modeling to define catchment size and real evapotranspiration (case study: Andrića karst spring, Western Serbia)
Marina Čokorilo Ilić, Vesna Ristić Vakanjac, Dušan Polomčić, Dragoljub Bajić, Jelena Ratković, Bojan Hajdin (2018)Water resources in karst are extremely important sources of drinking water supply. The quality of groundwater formed in karst aquifers is generally high and in most cases only chlorination is required. However, from a hydrogeological perspective, these water resources are the least studied. Often only basic information is available on catchment size, groundwater reserves (dynamic and static, if any) and groundwater balance. Detailed hydrogeological investigations and long-term monitoring of karst spring discharges are needed to acquire such information. In ...Marina Čokorilo Ilić, Vesna Ristić Vakanjac, Dušan Polomčić, Dragoljub Bajić, Jelena Ratković, Bojan Hajdin. "Mathematical modeling to define catchment size and real evapotranspiration (case study: Andrića karst spring, Western Serbia)" in National Conference with international participation “Geosciences 2018”, Bulgarian Geological Sciety (2018)
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Hidrodinamička analiza režima podzemnih voda ležišta uglja „Suvodol“ (Republika Makedonija)
Polomčić Dušan, Ristić Vakanjac Vesna, Bajić Dragoljub, Čokorilo Ilić Marina Jovanov Kostadin, Močević Jelena (2015)Polomčić Dušan, Ristić Vakanjac Vesna, Bajić Dragoljub, Čokorilo Ilić Marina Jovanov Kostadin, Močević Jelena. "Hidrodinamička analiza režima podzemnih voda ležišta uglja „Suvodol“ (Republika Makedonija)" in Stevanović Zoran, Beograd:Srpsko geološko društvo (2015): 31-42
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Assessment of the discharge regime and water budget of Belo Vrelo (source of the Tolišnica River, central Serbia)
Čokorilo Ilić Marina, Ristić-Vakanjac Vesna, Oudech Sibela, Vakanjac Boris, Polomčić Dušan, Bajić Dragoljub (2014)Čokorilo Ilić Marina, Ristić-Vakanjac Vesna, Oudech Sibela, Vakanjac Boris, Polomčić Dušan, Bajić Dragoljub. "Assessment of the discharge regime and water budget of Belo Vrelo (source of the Tolišnica River, central Serbia)" in Geološki anali Balkanskog poluostrva 75, Beograd, Srbija:Rudarsko-geološki fakultet (2014): 93-101. https://doi.org/10,2298/GABP1475093C
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Režim pogranične reke Jerme
Vesna Ristić Vakanjac, Marina Čokorilo Ilić, Dušan Polomčić, Dragoljub Bajić, Boris Vakanjac, Peđa Kostić (2019)Reka Jerma izvire na Vlasinskoj visoravni u zoni Vlasinskog jezera, teče prema severozapadu padinama planine Gramade kroz selo Klisuru. Kod sela Strazimirovci prelazi u susednu državu Bugarsku, prolazi kroz Trnovsko ždrelo i zatim se ponovo vraća u Srbiju nedaleko od sela Petačinci. Uliva se kod sela Gradište u Nišavu. Ukupna dužina ove reke je 72.1 km od toga je 45.1 km formirala na teritoriji Srbije a preostali deo pripada Bugarskoj. Posmatrajući površine sliva nešto manje od 50 % pripada ...Vesna Ristić Vakanjac, Marina Čokorilo Ilić, Dušan Polomčić, Dragoljub Bajić, Boris Vakanjac, Peđa Kostić. "Režim pogranične reke Jerme" in Zbornik radova II Međunarodne naučne konferencije, Regionalni razvoj i prekogranična saradnja, Pirot, 2018., UO Privredna komora Pirot (2019)
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Prilog poznavanju režima reke Ribnice (sliv reke Kolubare)
Vesna Ristić Vakanjac, Marina Čokorilo Ilić, Boris Vakanjac, Dušan Polomčić, Dragoljub Bajić, Jelena Ratković (2019)Vesna Ristić Vakanjac, Marina Čokorilo Ilić, Boris Vakanjac, Dušan Polomčić, Dragoljub Bajić, Jelena Ratković. "Prilog poznavanju režima reke Ribnice (sliv reke Kolubare)" in Knjiga apstrakata 9. Simpozijuma o zaštiti karsta, Beograd, 2019., Akademski speleološko-alpinistički klub (ASAK), Beograd (2019)
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Uticaj padavina na kvalitativne i kvantitativne parametre karstnih izdanskih voda
Marina Čokorilo Ilić, Vesna Ristić Vakanjac, Petar Papić, Radisav Golubović, Dušan Polomčić, Dragoljub Bajić (2018)Marina Čokorilo Ilić, Vesna Ristić Vakanjac, Petar Papić, Radisav Golubović, Dušan Polomčić, Dragoljub Bajić. "Uticaj padavina na kvalitativne i kvantitativne parametre karstnih izdanskih voda" in Zbornik radova nacionalne konferencije sa međunarodnim učešćem ekoremedijacija i ekonomska valorizacija vodnih resursa-modeli i primena, Fakultet za primenjenu ekologiju Futura, Univerzitet Singidunum, Beograd (2018)
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Prilog poznavanju režima podzemnih voda leve obale reke Save na potezu Obrenovac - Beograd
Đorđe Momirov, Vesna Ristić Vakanjac, Dušan Polomčić, Dragoljub Bajić, Bojan Hajdin, Marina Čokorilo Ilić (2022)Đorđe Momirov, Vesna Ristić Vakanjac, Dušan Polomčić, Dragoljub Bajić, Bojan Hajdin, Marina Čokorilo Ilić. "Prilog poznavanju režima podzemnih voda leve obale reke Save na potezu Obrenovac - Beograd " in Proceedings of the XVI Serbian Symposium on Hydrogeology, Zlatibor, Serbia, 28. September - 02. October, 2022, University of Belgrade - Faculty of mining and geology (2022)
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A contribution to the understanding of the flow regime and water balance of the transboundary river Jerma
Vesna Ristić Vakanjac, Jovana Nikolić, Boris Vakanjac, Marina Čokorilo Ilić, Vida Tanasijević, Milan Đelić (2020)Vesna Ristić Vakanjac, Jovana Nikolić, Boris Vakanjac, Marina Čokorilo Ilić, Vida Tanasijević, Milan Đelić. "A contribution to the understanding of the flow regime and water balance of the transboundary river Jerma" in National Conference with international participation “Geosciences 2020”, Review of the Bulgarian Geological Society, vol. 81, part 3, Sofia : Bulgarian geological society (2020)
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Application of Peleg model on mass transfer kinetics during osmotic dehydratation of pear cubes in sucrose solution
Vesna Pavelkić, Tanja Brdarić, Marija Petrović, Gavrilo Šekularac, Milica Košević, Lato Pezo, Marija Ilić (2015)The applicability of Peleg model was investigated for predicting mass transfer kinetics during the osmotic dehydration (OD) process of pears, at different concentrations (40, 60 and 70%, w/w) and temperatures (20, 35 and 50 °C) of sucrose solution. Increase in sucrose solution concentration resulted in higher water loss (WL) and solid gain (SG) values through the osmotic treatment period. After 360 min of osmotic treatment of pears, WL ranged from 23.71 to 31.68% at 20 °C, from 24.80 to ...Vesna Pavelkić, Tanja Brdarić, Marija Petrović, Gavrilo Šekularac, Milica Košević, Lato Pezo, Marija Ilić. "Application of Peleg model on mass transfer kinetics during osmotic dehydratation of pear cubes in sucrose solution" in Chemical Industry and Chemical Engineering Quarterly (2015). https://doi.org/10.2298/CICEQ141014004P
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Autocorrelation and cross-correlation analyses of total bacteria: Case study of Banja karst spring in Valjevo, Serbia
Ristić Vakanjac Vesna, Golubović Radisav, Polomčić Dušan, Čokorilo Ilić Marina, Štrbački Jana, Bajić Dragoljub, Ratković Jelena (2017)Ristić Vakanjac Vesna, Golubović Radisav, Polomčić Dušan, Čokorilo Ilić Marina, Štrbački Jana, Bajić Dragoljub, Ratković Jelena. "Autocorrelation and cross-correlation analyses of total bacteria: Case study of Banja karst spring in Valjevo, Serbia" in Proceedings of the national conference with international participation „Geosciences 2017“, Sofia:Bulgarian Geological Society (2017): 145-146
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A contribution to the understanding of the water regime of the Visočica river
Ristić Vakanjac Vesna, Nikolić J., Čokorilo Ilić Marina, Polomčić Dušan, Bajić Dragoljub, Hajdin Bojan, Ratković Jelena (2018)Ristić Vakanjac Vesna, Nikolić J., Čokorilo Ilić Marina, Polomčić Dušan, Bajić Dragoljub, Hajdin Bojan, Ratković Jelena. "A contribution to the understanding of the water regime of the Visočica river" in Proceedings of the XVII Serbian Geological Congress, Belgrade:Serbian Geological Society (2018): 505-510
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Prilog poznavanju režima voda reke Visočice
Vesna Ristić Vakanjac, Jovan Nikolić, Marina Čokorilo Ilić, Dušan Polomčić, Dragoljub Bajić, Bojan Hajdin, Jelena Ratković (2018)Специфични геолошки и хидрогеолошки услови у области слива реке Височице, а пре свега широко распрострањење карбонатног средње тријаског комплекса стена, као и доњо тријаске шарене серије (алевролити, пешчари, конгломерати) имали су за последицу формирање специфичног типа дренажне мреже као и специфичног режима отицаја реке Височице и њених значајнијих притока. У конкретном случају, у горњим деловима слива ове реке као и њених главних притока, у оквиру доњо тријаских седимената развијен је дендритичан тип хидрографске мреже, док преласком на средње тријаске ...Vesna Ristić Vakanjac, Jovan Nikolić, Marina Čokorilo Ilić, Dušan Polomčić, Dragoljub Bajić, Bojan Hajdin, Jelena Ratković . "Prilog poznavanju režima voda reke Visočice" in 17. Kongres geologa Srbije, Vrnjačka Banja, 17-20.05.2018., Beograd : Srpsko geološko društvo (2018)
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Analiza režima Velike Morave i podzemnih voda formiranih u njenom aluvijonu
Jovana Mladenović, Vesna Ristić Vakanjac, Jugoslav Nikolić, Dušan Polomčić, Dragoljub Bajić, Boris Vakanjac, Marina Čokorilo Ilić (2022)Jovana Mladenović, Vesna Ristić Vakanjac, Jugoslav Nikolić, Dušan Polomčić, Dragoljub Bajić, Boris Vakanjac, Marina Čokorilo Ilić. "Analiza režima Velike Morave i podzemnih voda formiranih u njenom aluvijonu" in Proceedings of the XVI Serbian Symposium on Hydrogeology, Zlatibor, Serbia, 28. September - 02. October, 2022, University of Belgrade - Faculty of mining and geology (2022)
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Influence of geological substrate on runoff formation, a case study: small river catchments in southeastern Serbia of similar size and with comparable pluviographic regimes
Vesna Ristić Vakanjac, Veljko Marinović, Nikola Milovanović, Marina Čokorilo Ilić, Boris Vakanjac, Jugoslav Nikolić, Saša Bakrač (2022)We are witnessing climate change that is happening both, globally and, at the regionally - or local level. As a result of expected climate change in Southeast Europe, in the first place are the distributions of precipitation within the year (frequent extreme events are present) and then the increase in temperature, which already has a significant impact on evapotranspiration and runoff formed in a particular catchment area. In addition to climatic factors, the geological structure, i.e. the hydrogeological characteristics ...Vesna Ristić Vakanjac, Veljko Marinović, Nikola Milovanović, Marina Čokorilo Ilić, Boris Vakanjac, Jugoslav Nikolić, Saša Bakrač. "Influence of geological substrate on runoff formation, a case study: small river catchments in southeastern Serbia of similar size and with comparable pluviographic regimes" in XXII International Congress of the Carpathian Balkan Geological Association (CBGA), Sofia : Bulgarian Academy of Sciences (2022)