Претрага
167 items
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Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals
Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić (2020)As the number of poorly soluble drugs is increasing, nanocrystals have become very interesting due to wide range of application possibilities. Curcumin was used as a model active ingredient in this work. Even though it has many proven positive effects, due to its physicochemical issues, its possibilities have not been fully exploited. The goal of this work was to select optimal conditions for a top-down method for curcumin nanosuspension production, and to perform their comprehensive characterization applying complementary methodologies: ...Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić. "Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals" in Review on advanced materials science, Walter de Gruyter GmbH (2020). https://doi.org/10.1515/rams-2020-0043
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Extensive vibrations of the belt conveyer drive electromotor of a bucket wheel excavator as a result of intesified wear-and-tear of its mount support
Vesna Damnjanović, Predrag Jovančić, Snežana Aleksandrović. "Extensive vibrations of the belt conveyer drive electromotor of a bucket wheel excavator as a result of intesified wear-and-tear of its mount support" in Journal of Vibroengineering (2017). https://doi.org/10.21595/jve.2016.17321
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Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering
Josip Išek, Lazar Kaluđerović, Nikola Vuković, Maja Milošević, Ivana Vukašinović, Zorica Tomić (2020)... Wang K. & Yao X. (2016) Developing high performance phosphogypsum- based cementitious materials for oil-well cementing through a step-by-step optimization method. Cement and Concrete Composites, 72, 299-308. IAEA (2013) Radiation Protection and Management of NORM Residues in the Phosphate Industry ...
... with a scanning step of 1* min ". The tube current was set to 30 mA and the voltage to 40 kV. The identification of mineral phases followed the criteria recommended by Mikheev (1957) and the Joint Committee for Powder Diffraction Standards (JCPDS). Whiteness index In order to compare the quality ...
... engineering constructions. On the other hand, the PG1P sample, obtained after the recrystallization process, met all of the radiological hazard criteria associated with construction materials and can be used safely in construction projects. Summary and conclusion Two samples of phosphogypsum, ...Josip Išek, Lazar Kaluđerović, Nikola Vuković, Maja Milošević, Ivana Vukašinović, Zorica Tomić. "Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering" in Clay Minerals, Cambridge University press (2020). https://doi.org/10.1180/clm.2020.11
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Freeze-dried nanocrystal dispersion of novel deuterated pyrazoloquinolinone ligand (DK-I-56-1): Process parameters and lyoprotectant selection through the stability study
Jelena R. Mitrović, Maja Bjelošević Žiberna, Aleksandar Vukadinović, Daniel E. Knutson, Dishary Sharmin, Aleksandar Kremenović, Pegi Ahlin Grabnar, Odon Planinšek, Dominique Lunter, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2023)Recently, nanocrystal dispersions have been considered as a promising formulation strategy to improve the bioavailability of the deuterated pyrazoloquinolinone ligand DK-I-56-1 (7‑methoxy-2-(4‑methoxy-d3-phenyl)-2,5-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one). In the current study, the freeze-drying process (formulation and process parameters) was investigated to improve the storage stability of the previously developed formulation. Different combinations of lyoprotectant (sucrose or trehalose) and bulking agent (mannitol) were varied while formulations were freeze-dried under two conditions (primary drying at -10 or -45 °C). The obtained lyophilizates were characterized in terms ...... E., Bielejewski, M., Milanowski, B., Lulek, J., 2022. Freeze-drying of drug nanosuspension-study of formulation and processing factors for the optimization and characterization of redispersible cilostazol nanocrystals. J. Drug Deliv. Sci. Technol. 74, 103528 https://doi.org/10.1016/j.jddst.2022.103528 ...
... et al. 'Trenkenschuh, E., Friess, W., 2021. Freeze-drying of nanoparticles: how to overcome colloidal instability by formulation and process optimization. Eur. J. Pharm. Biopharm. 165, 345–360. https://doi.org/10.1016/j.ejpb.2021.05.024. 'Trenkenschuh, E., Savšek, U., Friess, W., 2021. Formulation ...Jelena R. Mitrović, Maja Bjelošević Žiberna, Aleksandar Vukadinović, Daniel E. Knutson, Dishary Sharmin, Aleksandar Kremenović, Pegi Ahlin Grabnar, Odon Planinšek, Dominique Lunter, James M. Cook, Miroslav M. Savić, Snežana D. Savić. "Freeze-dried nanocrystal dispersion of novel deuterated pyrazoloquinolinone ligand (DK-I-56-1): Process parameters and lyoprotectant selection through the stability study" in European Journal of Pharmaceutical Sciences, Elsevier BV (2023). https://doi.org/10.1016/j.ejps.2023.106557
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A comparison between ARIMA, LSTM, ARIMA-LSTM and SSA for cross-border rail freight traffic forecasting: the case of Alpine-Western Balkan Rail Freight Corridor
Miloš Milenković, Miloš Gligorić, Nebojša Bojović, Zoran Gligorić. "A comparison between ARIMA, LSTM, ARIMA-LSTM and SSA for cross-border rail freight traffic forecasting: the case of Alpine-Western Balkan Rail Freight Corridor" in Transportation Planning and Technology, Informa UK Limited (2023). https://doi.org/10.1080/03081060.2023.2245389
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Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics
Maja Milošević, Predrag Dabić, Sabina Kovač, Lazar Kaluđerović, Mihovil Logar. "Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics" in Clay Minerals, Mineralogical Society (2019). https://doi.org/10.1180/clm.2019.49
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Integrative GHG Assessment in Oil and Gas Industry
Reducing greenhouse gas emissions is one of the main targets of national strategies in European countries. As a main contributor to emissions, the energy sector is recognized as the most promising to apply measures and actions aimed to decrease GHG emissions. The Oil and Gas industry as a significant contributor to global greenhouse gas emissions is facing a growing need for estimating, mitigating, and reducing the impact of their operations on the atmosphere to stay competitive in a newly ...... The cnergy sector is in direct correlation with various industries. The O&G industry has a domain role in the energy sector with a space for optimization of production and processing with the aim of reducing GHG emissions. The first prerequisite is developing, the methodology for mapping and calculating ...Aleksandar Mirković, Marija Živković, Stevan Đenadić, Darja Lubarda, Chinedu Anyanwa. "Integrative GHG Assessment in Oil and Gas Industry" in Energija, ekonomija, ekologija (2023). https://doi.org/10.46793/EEE23-1.51M
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Groundwater management by riverbank filtration and an infiltration channel, the case of Obrenovac, Serbia
Dušan Polomčić, Bojan Hajdin, Zoran Stevanović, Dragoljub Bajić, Katarina Hajdin. "Groundwater management by riverbank filtration and an infiltration channel, the case of Obrenovac, Serbia" in Hydrogeology Journal, Berlin, Heidelberg : Springer, International Association of Hydrogeologists (2013). https://doi.org/10.1007/s10040-013-1025-9
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Some models for determination of parameters of the soil oscillation law during blasting operations
... the University of Belgrade, Faculty of Mining and Geology. Author Contributions: Suzana Lutovac and Branko Gluščević performed the modelling, optimization and analysis of results. The paper was written by Suzana Lutovac with the support of Rade Tokalić and revised by Čedomir Beljić. Field measurement ...
... that the value of parameter n generally ranges in an interval from 1–3, so that in Equation (25) we may take that n = 1.5. 3. Defining Statistical Criteria For the above mentioned models 1, 2, and 3, based on experimental data, we have obtained equations which make possible the determination of the ...Suzana Lutovac, Dragan Medenica, Branko Gluščević, Rade Tokalić, Čedomir Beljić. "Some models for determination of parameters of the soil oscillation law during blasting operations" in Energies, Basel, Switzerland : MDPI (2018). https://doi.org/10.3390/en9080617
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The external aggregation Newton's method for solving nonlinear equations and applications
Marija Paunović, Dejan Ćebić, Nebojša Ralević. "The external aggregation Newton's method for solving nonlinear equations and applications" in The University Thought - Publication in Natural Sciences, Centre for Evaluation in Education and Science (CEON/CEES) (2020). https://doi.org/10.5937/univtho10-24982
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BEYOND 2020 - Geology explorations and open pit activities affectation in reclamation designing in Kolubara Coal Mines (KCM) Serbia, new considerations
Geology explorations in KCM runs from 1936. year up to these days and still ongoing. Results in >7,200 drill holes with ≈600,000 m of core drilling and gave lignite ore resources of > 4,1Bt, which 1,15Bt are excavated since 1986. of XIX up to early years of XXI century. For further mining operations in open pits stay 1,5Bt of lignite. Under waste heaps are ≈80 km2, additional 85 km2 should be filled. All of that masses/areas were, are ...Bojan Dimitrijević, Bogoljub Vučković, Radmila Gaćina. "BEYOND 2020 - Geology explorations and open pit activities affectation in reclamation designing in Kolubara Coal Mines (KCM) Serbia, new considerations" in 17th International Conference of the open and underwater mining of minerals, Sts. Constantine and Helena Resort, Varna, 18-22 September, Bulgaria, Sofia, Bulgaria : Scientific and Technical Union of Mining, Geology and Metallurgy, (2023)
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Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs
John Nyame (2024)The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...... be tightly coupled with evaluation of their practical performances and process considerations[34]. Moreover, cycle design, configuration, and optimization of any cyclic process should take into account the characteristics of the specific adsorbent to be eventually used.[35]. Figure 2.3 indicates ...
... Ismail, I. et al.: Carbon Capture, Utilization, and Storage in Saline Aquifers: Subsurface Policies, Development Plans, Well Control Strategies and Optimization Approaches—A Review. Clean Technol. 2023, 5(2), 609-637; https://doi.org/10.3390/cleantechno15020031 [54] Michael, K. et al.: Geological storage ...
... technological innovation and cost saving of energy resources. REFERENCES [1] Stefan Bachu (2000) Sequestration of CO2 in geological media: criteria and approach for site selection in response to climate change. Energy Conversion & Management 41 (2000) 953+970 [2] Bryant E. Climate process ...John Nyame. Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs, 2024
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Ефикасност дистрибуције и коришћења природног гаса у домаћинствима
Dejan Brkić (2010-03-30)Природни гас ће се у будућности све више користити као енергент за подмиривање грејних потреба становништва у српским градовима. Стога је потребно изнаћи најповољнији начин употребе природног гаса. Природни гас се може користити за подмирење грејних потреба становништва на два дијаметрално супростављена начина, и то директно, тако што би се гас директно уводио у зграде путем дистрибутивног система за снабдевање гасом и затим сагоревао у гасном котлу којим је сваки стан опремљен (гасни дистрибутивни систем), или индиректно, тако што ...prirоdni gаs, distribuciја gаsа,grејаnjе, cеvоvоdi, cеvоvоdnе mrеžе,fаktоr trеnjа pri prоtоku fluidа,urbаnizаm... ironment: two case studies from Europe. Energy 29(7), 979–1000. (на енглеском) 94. Dinca, C., Badea, A., Rousseaux, P., Apostol, T. 2007. A multi‐criteria approach to evaluate the natural gas energy systems. Energy Policy 35(11), 5754–5765. (на енглеском) 95. Djordjević, S., Prodanović, D., Walters ...
... cs Reviews 50(7), 413‐429. (на енглеском) 16. Barelli, L., Bidini, G., Pinchi, E.M. 2006. Implementation of a cogenerative district heating: optimization of a simulation model for the thermal power demand. Energy & Buildings 38(12), 1434–1442. (на енглеском) Л ит ер ат ур а ‐ 185 ‐ ...
... perturbation method. Applied Mathematical Modelling 20(4), 290–297. (на енглеском) 24. Benonysson, A., Bohm, B., Ravn, H.F. 1995. Operational optimization in a district heating system. Energy Conversion & Management 36(5), 297–314. (на енглеском) 25. Bhave, P.R., Gupta, R. 2004. Optimal design ...Dejan Brkić. "Ефикасност дистрибуције и коришћења природног гаса у домаћинствима" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2010-03-30)
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Ефикасност дистрибуције и коришћења природног гаса у домаћинствима
Dejan Brkić (2010-03-30)Природни гас ће се у будућности све више користити као енергент за подмиривање грејних потреба становништва у српским градовима. Стога је потребно изнаћи најповољнији начин употребе природног гаса. Природни гас се може користити за подмирење грејних потреба становништва на два дијаметрално супростављена начина, и то директно, тако што би се гас директно уводио у зграде путем дистрибутивног система за снабдевање гасом и затим сагоревао у гасном котлу којим је сваки стан опремљен (гасни дистрибутивни систем), или индиректно, тако што ...prirоdni gаs, distribuciја gаsа,grејаnjе, cеvоvоdi, cеvоvоdnе mrеžе,fаktоr trеnjа pri prоtоku fluidа,urbаnizаm... ironment: two case studies from Europe. Energy 29(7), 979–1000. (на енглеском) 94. Dinca, C., Badea, A., Rousseaux, P., Apostol, T. 2007. A multi‐criteria approach to evaluate the natural gas energy systems. Energy Policy 35(11), 5754–5765. (на енглеском) 95. Djordjević, S., Prodanović, D., Walters ...
... cs Reviews 50(7), 413‐429. (на енглеском) 16. Barelli, L., Bidini, G., Pinchi, E.M. 2006. Implementation of a cogenerative district heating: optimization of a simulation model for the thermal power demand. Energy & Buildings 38(12), 1434–1442. (на енглеском) Л ит ер ат ур а ‐ 185 ‐ ...
... perturbation method. Applied Mathematical Modelling 20(4), 290–297. (на енглеском) 24. Benonysson, A., Bohm, B., Ravn, H.F. 1995. Operational optimization in a district heating system. Energy Conversion & Management 36(5), 297–314. (на енглеском) 25. Bhave, P.R., Gupta, R. 2004. Optimal design ...Dejan Brkić. "Ефикасност дистрибуције и коришћења природног гаса у домаћинствима" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2010-03-30)
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Оптимизација управљања процесима рекултивације површинских копова угља
Bojan S. Dimitrijević (2014-05-30)Ширење површинске експлоатације минералних сировина а нарочито енергетских ресурсафосилних горива, чине површинске копове угља просторно доминантним објектима великих рударскихбасена како у нас тако и у свету. Експлоатациона активност, прати негативне еколошке утицаје наживотну средину шире околине, што нас обавезује на интегрално планирање, ревитализацију,рекултивацију и уређење нарушеног простора за његово поновно хумано коришћење упостексплоатационом периоду. Постексплоатационо санирање и уређење предела површинских коповаи одлагалишта односно нарушеног простора изазваног рударским радовима и пратећих објеката,представља синтетички мултидисциплинарно-интердисциплинаран веома комплексан вишефазниинжењерски пројектни задатак.У уводном ...рекултивација, постексплоатациони предео, површински коп угља,вишеатрибутна анализа, одлучивање, процеси, рекултивационо решење... land reclamation. Furthermore, a presentation of theoretical potentials of non-linear programming models are presented, primarily multi-criteria, multi-attribute and multi-objective models, such as ELECTRE, PROMETHEE, AHP, VIKOR, etc. By defining a new methodology in structuring the processes of decision ...
... pit mine separately, by using analogy in selecting the criteria. For the purpose of design solutions, i.e. the selected open pit mines as the research objects, PROMETHEE model was chosen. Without further analysis and the assessment of the multi-attribute models, the selection of model was predisposed ...
... х података у оквиру једног компјутеризованог окружења. Географски информациони систем (GIS) и методе вишекритеријумског одлучивања (МCDM - multi-criteria decision-making), засноване на бинарним целим бројевима линеарног програмирања, интегрисани су да омогуће избор Бојан Димитријевић, докторска ...Bojan S. Dimitrijević. "Оптимизација управљања процесима рекултивације површинских копова угља" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-05-30)
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Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings
... realized by the Faculty of Mining and Geology in Belgrade. Author Contributions: Suzana Lutovac and Branko Gluščević performed the modelling, optimization and analysis of results. The paper was written by Suzana Lutovac with the support of Rade Tokalić and revised by Čedomir Beljić. Field measurement ...
... written in the form: logv = AlogR + logK, (41) i.e., in the form: logv = logK·RA, (42) wherefrom we obtain: v = K·RA. (43) 3.4. Defining Statistical Criteria For the above-mentioned models 1, 2 and 3, based on experimental data, we have obtained equations, which make possible to determine the oscillation ...Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić. "Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings" in Minerals, Basel : MDPI AG, Basel, Switzerland (2018). https://doi.org/10.3390/min8020070
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Assessments of effects of implementation of strategic plans for development of Belgrade District heating system
The district heating system (DHS) is one of the key elements of the Belgrade energy system. Overview of the current state and basic characteristics of the DHS are presented in this paper. The focus is on the planned development of DHS and on the analyses of effects of realization of measures and projects defined by strategic documents related to DHS which are adopted by city authorities (Development Strategy of DHS and Strategy of Belgrade Development). Two exploratory scenarios were ...Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Miodrag Grujić. "Assessments of effects of implementation of strategic plans for development of Belgrade District heating system" in Sustainable Cities and Society, Elsevier BV (2020). https://doi.org/10.1016/j.scs.2020.102304
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Simple 2D gravity–density inversion for the modeling of the basin basement: example from the Banat area, Serbia
We have developed a technique to calculate lateral density distribution of the sedimentary basin basement by combining linear gravity–density inversion and 2D forward modeling. The procedure requires gravity anomaly data, depth-to-basement data and density data for the sediments (density–depth distribution). Gravity efect of density variations in the basement was extracted from the total gravity anomaly by removing the joint efect of the sediments with vertical density variations and homogeneous basement of average density contrast (calculated by 2D modeling). Gravity ...Ivana Vasiljević, Snežana Ignjatović, Dragana Đurić. "Simple 2D gravity–density inversion for the modeling of the basin basement: example from the Banat area, Serbia" in Acta Geophysica, Springer (2019). https://doi.org/10.1007/s11600-019-00328-9
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Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu
Nikoleta Aleksić (2021)... chitosan hydrogel and its optimization by definitive screening design. European Journal of Pharmaceutical Sciences, 125, 102-109. [9] Pereira, A., Reis M., Leca, J., Rodrigues, P., Marques, J. (2018) Definitive screening designs and latent variable modelling for the optimization of solid phase microextraction ...
... Conference Proceedings, 1855, 070004–1–070004–8. [12] Stamenković, O.S., Rajković, K., Veličković, A.V., Milić, P.S., Veljković, V.B. (2013). Optimization of base-catalyzed ethanolysis of sunflower oil by regression and artificial neural network models. Fuel Processing Technology, 114, 101-108. ...
... naučni skup iz zaštite životne sredine „Docent dr Milena Dalmacija“, 2021. OR-09 [12] Sachindra, N.M., & Mahendrakar, N.S. (2005). Process optimization for extraction of carotenoids from shrimp waste with vegetable oils. Bioresource Technology, 96, 1195-1200. [13] Rafalowski, R., Zofa, Z., Kuncewicz ...Nikoleta Aleksić. "Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu" in VIII Memorijalni naučni skup iz zaštite životne sredine „Docent dr Milena Dalmacija“, 2021, Prirodno-matematički fakultet, Novi Sad (2021)
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Hibridni sistem za planiranje i analizu ventilacije rudnika
... LOWNDES I.S., DENBY B., "Genetic Algorithm Optimization of Large U.K. Coal Mine Ventilation Network", Proceedings of 8th US Mine Ventilation Symposium, pp. 625-632, (1998). 104. YANG Z.Y., LOWNDES I.S., DENBY B., "Application of genetic algorithms to the optimization of large mine ventilation networks" ...
... air distribution in mine ventilation networks“, XIX SYM-OP-IS , Zbornik radova str. 325-328, Beograd, (1992). 47. LILIĆ N., KUZMANOVIĆ D., “Optimization of air distribution in mine ventilation networks“, Yugoslav Journal of Operations Research 4, Number 1, str. 105-113, (1994). 13 O knjizi1 ...
... ja raspodele vazduha u rudničkim ventilacionim mrežama“, Podzemni radovi 1, str. 69-76, (1992). 49. LILIĆ N., OBRADOVIĆ I., “Air distribution optimization in mine ventilation networks“, III Međunarodni simpozijum o primeni matematičkih metoda i računara u rudarstvu, geologiji, metalurgiji i srodnim ...Nikola Lilić, Ranka Stanković, Ivan Obradović. Hibridni sistem za planiranje i analizu ventilacije rudnika, Rudarsko-geološki fakultet, Univerzitet u Beogradu, 2000