Претрага
2513 items
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Device for more efficiency production of heavy oil
Danilović Dušan, Karović-Maričić Vesna, Batalović Veselin, Leković Branko. "Device for more efficiency production of heavy oil" in Chemical Engineering Research and Design 2 no. 90, London-Amsterdam -New York:Elsevier (2012): 238-242
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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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Robust IMC Controllers with Optimal Setpoints Tracking and Disturbance Rejection for Industrial Boiler
Ivezić Dejan, Petrović T. (2010)Ivezić Dejan, Petrović T.. "Robust IMC Controllers with Optimal Setpoints Tracking and Disturbance Rejection for Industrial Boiler" in Strojniški vestnik - Journal of Mechanical Engineering 56 no. 9, Ljubljana:University of Ljubljana, Faculty of Mechanical Engineering (2010): 565-574
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Еоценска фауна југозападног дела Сирт басена (Либија)
Љупко Рундић, Мери Ганић (2020)Љупко Рундић, Мери Ганић. "Еоценска фауна југозападног дела Сирт басена (Либија)" in Записници Српског геолошког друштва, Српско геолошко друштво (2020)
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Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining
Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović (2019)... Author Contributions: Conceptualization, I.R. and D.I.; methodology, T.S. and S.D.; validation, P.J.; formal analysis and writing—original draft preparation, I.J. Funding: This research and the APC was funded by the Ministry of Education and Science of the Republic of Serbia within the framework of ...
... projects TR 33039 and TR 33025. Acknowledgments: This paper was realized as a part of the project “Improvement of Lignite Opencast Technology in Order to Increase Energy Efficiency and Occupational Safety” (TR 33039) and a part of the project “Research on possibility for AT (Advanced Technology) rockbolting ...
... 2016, 9, 935. [CrossRef] 27. Malenovic-Nikolic, J.; Vasovic, D.; Filipovic, I.; Musicki, S.; Ristovic, I. Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes. Energies 2016, 9, 1071. [CrossRef] 28. Karimnia, H.; Bagloo, H. Optimum mining ...Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović . "Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining" in Energies, MDPI (2019). https://doi.org/https://doi.org/10.3390/en12122245
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Low-temperature phase transition and magnetic properties of K3YbSi2O7
Predrag Dabić, Volker Kahlenberg, Biljana Krüger, Marko Rodić, Sabina Kovač, Jovan Blanuša, Zvonko Jagličić, Ljiljana Karanović, Václav Petříček, Aleksandar Kremenović (2021)alkalni silikati elemenata retkih zemalja, fazni prelazi, magnetne karakteristike, razdvajanje kristalnog polja, silikati lantanica... Ðušina 7, Belgrade, 11000, Serbia, bInstitute of Mineralogy and Petrography, University of Innsbruck, Innrain 52, Innsbruck, A-6020, Austria, cDepartment of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 3, Novi Sad, 21000, ...
... transition and magnetic properties of K3YbSi2O7 | Predrag Dabić, Volker Kahlenberg, Biljana Krüger, Marko Rodić, Sabina Kovač, Jovan Blanuša, Zvonko Jagličić, Ljiljana Karanović, Václav Petříček, Aleksandar Kremenović | Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials ...
... Ministry of Educa- tion, Science and Technological Development of the Republic of Serbia (contract No. 451-03-09/2021-14/200126); Ministry of Education, Science and Technological Development of the Republic of Serbia & Austria Federal Ministry of Education, Science and Research (project No. 451 ...Predrag Dabić, Volker Kahlenberg, Biljana Krüger, Marko Rodić, Sabina Kovač, Jovan Blanuša, Zvonko Jagličić, Ljiljana Karanović, Václav Petříček, Aleksandar Kremenović. "Low-temperature phase transition and magnetic properties of K3YbSi2O7" in Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials, International Union of Crystallography (IUCr) (2021). https://doi.org/10.1107/S2052520621006077
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Effects of production conditions on the properties of limestone briquettes aimed for acid soil liming
Vladimir Jovanović, Dragana Nišić, Vladimir Milisavljević, Dejan Todorović, Dragan Radulović, Branislav Ivošević, Sonja Milićević (2022)Vladimir Jovanović, Dragana Nišić, Vladimir Milisavljević, Dejan Todorović, Dragan Radulović, Branislav Ivošević, Sonja Milićević . "Effects of production conditions on the properties of limestone briquettes aimed for acid soil liming" in Chemical Industry (2022). https://doi.org/10.2298/HEMIND220211011J
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Short-term forecasting of PM10 and PM2.5 concentrations with Facebook's Prophet Model at the Belgrade-Zeleno brdo
Filip Arnaut, Vesna Cvetkov, Dragana Đurić, Mileva Samardžić-Petrović. "Short-term forecasting of PM10 and PM2.5 concentrations with Facebook's Prophet Model at the Belgrade-Zeleno brdo" in Geofizika (2023). https://doi.org/10.15233/gfz.2023.40.7
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Concept of forming and usage of engineering geological investigations data base in the area of Belgrade City, Serbia
Tahov Vesna, Tornjanski Ivica, Abolmasov Biljana. "Concept of forming and usage of engineering geological investigations data base in the area of Belgrade City, Serbia" in Proceedings of the 11th Congress of the IAEG, Geologically Active 1, Auckland, New Zealand:Taylor&Francis Group, London (2010): 1587-1593
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Hydrogeochemical approach to estimate the quality of bottled waters in Serbia
Marina Ćuk, Maja Todorović, Jovana Šisović, Jana Štrbački, Jakov Andrijašević, Petar Papić. "Hydrogeochemical approach to estimate the quality of bottled waters in Serbia" in Chemical Industry, National Library of Serbia (2015). https://doi.org/10.2298/HEMIND150325042C
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Application of machine learning for diagnosing the operation of a deep well pump in oil production
Maja Trikić (2024)This paper will thoroughly examine how machine learning can improve the diagnosis of deep well pumps by analyzing the role and function of the pumps, dynamograms, sensor technologies, and diagnostic methods.Our analysis will provide insights into modern techniques and approaches for enhancing the performance and reliability of oil production systems, targeting cost reduction and increased operational efficiency.deep well pump, dynamograms, machine learning, diagnostics of operating coditions,Random Forest, XGBoost... between two sensors, which is proportional to the flow rate. Ultrasonic sensors are suitable for applications involving liquids and gases, such as in water management systems and industrial processes. 34 ' ··o Serija Q45U Serija 518 RUC30/100/300/600 M2SU Figure5.5 Ultrasonic sensors 3.Ele ...
... 3. Application of methods and materials The oil and gas industry must reduce costs and improve operational efficiency by leveraging data and investing in new technology to increase productivity. The use of machine learning can help advance technologies and processes, especially in areas where ...
... of sensor data, facilitating earlier detectton of anomalies and faster response to changes in pump operation. This technology enhances diagnostic accuracy and efficiency, reducing downtime and optimizing maintenance strategies. Date and place of completion: Maja Trikić September 2024.year,Belgrade ...Maja Trikić. Application of machine learning for diagnosing the operation of a deep well pump in oil production, 2024
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Multivariate Statistical Analysis of Hydrochemical and Microbiological Natural Tracers as a Tool for Understanding Karst Hydrodynamics (The Unica Springs, SW Slovenia)
Marina Ćuk Đurović, Metka Petrič, Igor Jemcov, Janez Mulec, Zdenka Mazej Grudnik, Cyril Mayaud, Matej Blatnik, Blaž Kogovšek, Nataša Ravbar (2022)Marina Ćuk Đurović, Metka Petrič, Igor Jemcov, Janez Mulec, Zdenka Mazej Grudnik, Cyril Mayaud, Matej Blatnik, Blaž Kogovšek, Nataša Ravbar. "Multivariate Statistical Analysis of Hydrochemical and Microbiological Natural Tracers as a Tool for Understanding Karst Hydrodynamics (The Unica Springs, SW Slovenia)" in Water Resources Research, American Geophysical Union (AGU) (2022). https://doi.org/10.1029/2021WR031831
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Пројекат ПРИЗМА: Карактеризација и технолошки поступци за рециклажу и поновну употребу флотацијске јаловине рудника „Рудник“
Владимир Симић, Стефан Петровић, Филип Арнаут, Весна Цветков, Милена Костовић, Драган Радуловић, Јовица Стојановић, Владимир Јовановић, Дејан Тодоровић, Нина Николић, Јелена Сенћански, Грозданка Богдановић, Драгана Мариловић (2024)Владимир Симић, Стефан Петровић, Филип Арнаут, Весна Цветков, Милена Костовић, Драган Радуловић, Јовица Стојановић, Владимир Јовановић, Дејан Тодоровић, Нина Николић, Јелена Сенћански, Грозданка Богдановић, Драгана Мариловић. "Пројекат ПРИЗМА: Карактеризација и технолошки поступци за рециклажу и поновну употребу флотацијске јаловине рудника „Рудник“" in Записници Српског геолошког друштва, Београд : Српско геолошко друштво (2024)
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Operational Efficiency Forecasting Model of an Existing Underground Mine Using Grey System Theory and Stochastic Diffusion Processes
Svetlana Štrbac Savić, Jasmina Nedeljković Ostojić, Zoran Gligorić, Čedomir Cvijović, Snežana Aleksandrović (2015)Svetlana Štrbac Savić, Jasmina Nedeljković Ostojić, Zoran Gligorić, Čedomir Cvijović, Snežana Aleksandrović. "Operational Efficiency Forecasting Model of an Existing Underground Mine Using Grey System Theory and Stochastic Diffusion Processes" in Mathematical Problems in Engineering (2015). https://doi.org/10.1155/2015/610307
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Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia
This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern ...... project no. OI176019 of the Ministry of Education, Science and Tech- nological Development of the Republic of Serbia. The authors thank the LA-ICP-MS laboratory, Geological Institute in Sofia, as well as the SEM laboratory, Faculty of Mining and Geology, University of Belgrade for support. The authors ...
... geochronology. Chemical Geology 211, 47–69. https://doi.org/10.1016/j.chemgeo.2004. 06.017 Jamtveit B. & Hervig R.L. 1994: Constraints on Transport and Kine- tics in Hydrothermal Systems from Zoned Garnet Crystals. Science 263, 505–508. https://doi.org/10.1126/science.263. 5146.505 Jamtveit B ...
... variations in optical features and garnet chemistry are the results of their two-stage evolution. The first stage and period of garnet growth is probably buffered by mineral dissolution and reactions in the country rock. The second stage is related to hydrothermal activity when W and Fe were brought into the ...Bojan Kostić, Danica Srećković-Batoćanin, Petyo Filipov, Pavle Tančić, Kristijan Sokol. "Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2021). https://doi.org/10.31577/GeolCarp.72.1.2
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The shear strength evaluation of rough and infilled joints and its indications for stability of rock cutting in schist rock mass
Construction of E75 highway section through Grdelica gorge was one of the most demanding projects realized in recent Serbian history. The alignment approximately 25 km long consists of several tens of bridges, two tunnels, three galleries and cuts with total length of 6 km. The alignment passes through highly anisotropic Palaeozoic schist rock formation of different weathering grades. This study focuses on shear strength properties of discontinuities, which are found to be the critical feature contributing to the occurrence ...Dušan Berisavljević, Zoran Berisavljević, Svetlana Melentijević. "The shear strength evaluation of rough and infilled joints and its indications for stability of rock cutting in schist rock mass" in Bulletin of engineering geology and the environment, Springer (2022). https://doi.org/10.1007/s10064-022-02580-8
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Efficiency and lifetime of medium voltage transformers
Snežana Aleksandrović, Vesna Damnjanović. "Efficiency and lifetime of medium voltage transformers" in XVI International Scientific – Professional Symposium, INFOTEH, Jahorina, 22. mart - 24. mart 2017., Istočno Sarajevo : Elektrotehnički fakultet, Univerzitet u Istočnom Sarajevu (2017)
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WS4LR - a Worksation for Lexical Resources
... Editor VisDic, Romanian Journal of Information Science and Technology, Volume 7, Numbers 1-2, 2004, pp. 201-214 Savary, A. (2005) Towards a Formalism for the Computational Morphology of Multi-Word Units, in Proceedings of 2nd Language & Technology Conference, April 21-23, 2005, Poznan, Poland ...
... the graph management tool in Intex/Unitex environment. The produced graphs are in the form of standard textual files that can easily be generated or managed independently of these systems and their respective graph management tools. The same is true for other types of graphs produced and used within ...
... provide for text processing using this type of dictionaries, but offer no facilities for dictionary development and management. WS4LR enables manipulation of dictionaries both of lemmas and of inflected forms. In LADL format, all the entries in the dictionary of simple word lemmas, the so called ...Cvetana Krstev, Ranka Stanković, Duško Vitas, Ivan Obradović. "WS4LR - a Worksation for Lexical Resources" in Proceedings of the Fifth Interantional Conference on Language Resources and Evaluation, Genoa, Italy, May 2006, ELRA - European Language Resources Association (2006)
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Digitalizacija u rudarstvu: Kreiranje sistema za efikasno poslovno izveštavanje
Proces donošenja odluka u oblasti rudarstva i geologije uslovljen je blagovremenim posedovanjem kvalitetnih podataka i informacija. Kompleksnost rudarskih procesa nalaže prikupljanje podataka na dnevnom odnosno na smenskom nivou. Podaci kao takvi bez analitičkog pristupa nisu dovoljni. Kako bi pristup podacima bio brz i efikasan neophodno je posedovanje adekvatnog digitalnog rešenja uz adekvatne centralizovane baze podataka. U ovom radu je dat pregled trenutne pozicije rudarstva sa aspekta digitalne transformacije kao i predlog jednostavnog prototipa u obliku digitalnog sistema za poslovno ...... tegy-in- the-metals-and-mining-industry [4] Stolterman, E. & Fors, A.C. (2004). Information technology and the good life. Information system research, s. 687-692. [5] de Sousa, J. S., Rocha, L. O., & de Castro, R. M. (2016). Digital transformation applied to Bauxite and Alumina Business System: ...
... the field of mining and geology is conditioned by timely access to quality data and information. The complexity of mining processes requires data collection on a daily or shift basis. Data, as such, without an analytical approach, is insufficient. For access to data to be quick and efficient, it is ...
... realizaciju projekta pod nazivom Mine Management Studio broj IF ID:52464. Literatura [1] Measuring the Information Society Report. (2017). ITU International Telecommunication Union. Available on: https://www.itu.int/net4/ITU-D/idi/2017/index.html [2] Mining and Green Growth in the EECCA Region. (2019) ...Stevan Đenadić, Aleksandar Mirković, Veljko Rupar . "Digitalizacija u rudarstvu: Kreiranje sistema za efikasno poslovno izveštavanje" in XVI Međunarodna rudarska konferencija OMC 2024, Zlatibor, 9 - 12. oktobar 2024, Jugoslovenski komitet za površinsku eksploataciju (2024)
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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 ...... MH096463 to JC) and National Science Foundation, Division of Chemistry (CHE- 1625735 to JC). The authors would also like to thank Mr. Klaus Weyhing, Department of Pharmaceutical Technology at Uni- versity of Tubingen and dr Vladimir Dobričić, Department of Pharma- ceutical Chemistry, University of ...
... Alasa 12-14, Belgrade, Serbia 4 Department of Chemistry and Biochemistry, Milwaukee Institute for Drug Discovery, University of Wisconsin-Milwaukee, 3210N. Cramer St., Milwaukee, WI, United States * Laboratory of Crystallography, Faculty of Mining and Geology, University of Belgrade, Đušina 7, Belgrade ...
... cm'! and 986 and 932 cm ! for the first and second sample, respectively, indicates a more closed confor- mation (Fig. 7c). It was demonstrated that the greater affinity for water 10 could reduce the molecular mobility of the vitreous matrix and contribute to the stability during storage. However ...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