Претрага
549 items
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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 ...... phy, largely depends on the sorbent used and is a measure of its capacity to enter 78 intermolecular interactions, ie. represents the adsorption energy of analytes molecules per unit 79 area of sorbent. The elution power of the solvent mixture is calculated based on the elution 80 power of each ...
... ity, RP-TLC, Organic modifiers. 31 32 2 Introduction 33 34 Lipophilicity is a physico-chemical characteristic of a compound that is related to the 35 passive passage of the compound through biological membranes, as well as their solubility. It 36 also affects the establishment of i ...
... ” Quant. Struct. Act. Relat. 5:81–88. 447 Jones, Robert D., David A. Summerville, and Fred Basolo. 1979. “Synthetic Oxygen Carriers 448 17 Related to Biological Systems.” Chemical Reviews 79(2):139–79. 449 Krasikov, V. D. 2003. “Contemporary Planar Chromatography.” Journal of Analytical 450 ...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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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 ...... te 80 and poloxamer 407) were not visible. FT-IR spectra of bulk sucrose, trehalose, and mannitol were in accordance to the findings in the related literature (Prizuela et al.. 2012; Wolkers et al., 2004; Bruni et al., 2009). The transmission spectrum of sucrose was characterized by very sharp ...
... OH-stretching band was located at 3316 cm !, which is typical for carbohydrates, while the isolated peak at around 3500 cm ! was assumed to be related to the weak hydrogen bonding between sugar molecules. Five bands in the CH-stretching region were located around 2941 cm !. The fingerprint region ...
... to the delo- calization of electrons in hydrogen bonded structures (Ottenhof et al., 2003). Therefore, the magnitude of the band shift could be related to the strength of the hydrogen bonds. It was found that the interaction was more pronounced when mannitol was added, and when comparing two ...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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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 lantanicaPredrag 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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Development of integrated fuzzy model for mine management optimization
Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić (2023)... advantage of fuzzy logic and heuristic methods need to be empha- sized in connection with geological exploration of ore deposits. It is primarily related to the complexity of geologic structures and the physical and mechanical properties of rocks. In such circumstances, engineer experience is especially ...Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić. "Development of integrated fuzzy model for mine management optimization" in Comptes rendus de l'Académie Bulgare des Sciences (2023)
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Geotechnical conditions of “Debelo brdo” tunnel construction on the highway E-80: Nis-Merdare-Pristina (“Peace Highway”)
The construction of the highway E-80 has begun in Serbia, which will represent the traffic hub of the Western Balkans and will be part of the main regional transport network of Southeast Europe. Its total length through Serbia is 77 km, and one part of the route is designed through a typical plain terrain, while a larger part of the route passes through hilly terrain. The construction of the tunnel “Debelo brdo” is planned partly in an open cut ...Dragoslav Rakić, Irena Basarić Ikodinović, Radojica Lapčević, Dragan Lukić. "Geotechnical conditions of “Debelo brdo” tunnel construction on the highway E-80: Nis-Merdare-Pristina (“Peace Highway”)" in Proceedings of the XVIII ECSMGE 2024 geotechnical engineering challenges to meet current and emerging needs of society, Lisbon, 26-30 August 2024, CRC Press (2024). https://doi.org/10.1201/9781003431749-356
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A Description of Morphological Features of Serbian: a Revision using Feature System Declaration
In this paper we discuss some well-known morphological descriptions used in various projects and applications (most notably MULTEXT-East and Unitex) and illustrate the encountered problems on Serbian. We have spotted four groups of problems: the lack of a value for an existing category, the lack of a category, the interdependence of values and categories lacking some description, and the lack of a support for some types of categories. At the same time, various descriptions often describe exactly the same ...Cvetana Krstev, Ranka Stanković, Vitas Duško. "A Description of Morphological Features of Serbian: a Revision using Feature System Declaration" in Proceedings of the 5th International Conference on Language Resources and Evaluation, LREC 2010, Valetta, Malta : European Language Resources Association (2010)
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Formative evaluation of e-learning projects with the logical framework approach
Roberto Linzalone, Giovani Schiuma, Ivan Obradović, Ranka Stanković. "Formative evaluation of e-learning projects with the logical framework approach" in The Sixth International Conference on e-Learning (eLearning-2015), September 2015, Belgrade, Serbia, Belgrade Metropolitan Univesity (2015)
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Утицај соларне активности на здравље човека
Каролина Ђукић, Весна Цветков, Весна Дамњановић. "Утицај соларне активности на здравље човека" in VII Меморијални научни скуп из заштите животне средине доцент др Милена Далмација Нови Сад, 01-02. април 2019, Природно-математички факултет, Департман за хемију, биохемију и заштиту животне средине (2019)
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Centar za hidrogeologiju karsta - 15 godina nauke i struke
... y, Northern Arizona — University, fFlagstaff, and Dr. Hermann Stadler, Senior Research Fellow, from Joanneum Research - lInstitute for Water, Energy and Sustainability, Water Resources Management, Graz – Austria. CHK also had the great honor and privilege to host world-renowned experts in the ...
... 75:35, https://doi.org/10.1007/s12665-015-5147-3 Milenić, D., Stevanović, Z., Dragišić, V., Vranješ, A., Savić, N. (2016): Application of renewable energy sources along motorway infrastructures on high karst plateaus-West Serbia case study, Environmental Earth Science. Springer, 75:35, https://doi.org/10 ...
... DrMario Parise lInstituteof Research _ 2016 Italija / Italy for Hydrological Protection Joanneum Research Institute for Water, Dr Hermann Energy and 2016 Mustrija / Stadler Sustainability Water Mustria Resources Management Univerzitet Prof. Dr Derek 'Kanada / Ford MekMaster / 2018 Canada ...urednici Saša Milanović, Ljiljana Vasić, Zoran Stevanović, Branislav Petrović. Centar za hidrogeologiju karsta - 15 godina nauke i struke, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, Centar za hidrogeologiju karsta, 2023
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Evaluating the deep learning software tools for large-scale enterprises using a novel TODIFFA-MCDM framework
Zoran Gligorić, Ömer Faruk Görçün, Miloš Gligorić, Dragan Pamucar, Vladimir Simić, Hande Küçükönder (2024)duboko učenje, industrije velikih razmera, MAXC (maksimum kriterijuma), TODIFFA (totalni diferencijal alternative), izbor softvera za dubinsko učenjeZoran Gligorić, Ömer Faruk Görçün, Miloš Gligorić, Dragan Pamucar, Vladimir Simić, Hande Küçükönder. "Evaluating the deep learning software tools for large-scale enterprises using a novel TODIFFA-MCDM framework" in Journal of King Saud University - Computer and Information Sciences, Springer Science and Business Media LLC (2024). https://doi.org/10.1016/j.jksuci.2024.102079
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Spatial assessment of the areas sensitive to degradation in the rural area of the municipality Čukarica
Nature and Landscape Conservation, Soil Science, Agronomy and Crop Science, Water Science and TechnologyNatalija Momirović, Ratko Kadović, Veljko Perović, Miloš Marjanović, Aleksandar Baumgertel. "Spatial assessment of the areas sensitive to degradation in the rural area of the municipality Čukarica" in International Soil and Water Conservation Research, Elsevier BV (2019). https://doi.org/10.1016/j.iswcr.2018.12.004
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Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)
Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović. "Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)" in Carbonates and Evaporites, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s13146-019-00548-6
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Groundwater resources for drinking water supply in Serbia´s Southeast Pannonian basin
... unit, depending on the available sources) (PSSTD, 2009). However, in solving water supply problems in the Bačka District there are problems related to the groundwater quality where priority is given to settlements with elevated concentrations of arsenic in groundwater, which is of geological ...
... balance was assessed based on the groundwater abstraction rate recorded in Bačka in 2010 and 2011, and in southern Hungary in 2008. All data related to groundwater balance on the Hungarian side of the Pannonian Basin used in this paper are defined in the SUDEHSTRA Project (Stevanović et al ...Dušan Polomčić, Bojan Hajdin, Marina Ćuk, Petar Papić, Zoran Stevanović. "Groundwater resources for drinking water supply in Serbia´s Southeast Pannonian basin" in Carpathian Journal of Earth and Environmental Sciences (2014)
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Hidrogeološke i hidrohemijske karakteristike pojave termomineralnih voda u reonu Volkovo (Skoplje - Republika severna Makedonija)
Hristina Petrova, Katarzyna Wątor, Ewa Kmiecik, Piotr Rusiniak, Boris Vakanjac, Vesna Ristić Vakanjac, Dimitar Petrov (2024)Kao rezultat tektonskog sklopa i litološko-geološkog sastava, na teritoriji Republike Severne Makedonije registrovan je veliki broj pojava termalnih, mineralnih i termomineralnih voda (T, M i TM voda). Dosadašnja hidrogeološka i hidrohemijska istraživanja ovih voda vršena od strane pojedinih autora sa ciljem da se definiše njihov lekoviti faktor kao i za potrebe banjskog turizma. Sprovedena istraživanja su, dakle, bila lokalnog karaktera i bila su vezana za njihove značajnije pojave. Tokom 70-tih godina prošlog veka, Kotevski je za potrebe izrade doktorske ...termomineralne vode, hidrohemijskie karakteristike, lekoviti faktor voda, Valakonje, Republika Severna MakedonijaHristina Petrova, Katarzyna Wątor, Ewa Kmiecik, Piotr Rusiniak, Boris Vakanjac, Vesna Ristić Vakanjac, Dimitar Petrov. "Hidrogeološke i hidrohemijske karakteristike pojave termomineralnih voda u reonu Volkovo (Skoplje - Republika severna Makedonija)" in 17. Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem, Pirot, 2-6 oktobar 2024, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet (2024). https://doi.org/10.5281/zenodo.13739884
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Bezbednosna rastojanja u jamskim magacinima eksploziva u domaćoj i međunarodnoj praksi
Projektovanje jamskih magacina eksploziva predstavlja složen inženjerski problem. Sama namena jamskih magacina zahteva ispunjenost niza uslova koji se odnose na bezbedno pozicioniranje magacina, ispunjenost uslova ventilacije, pristupa, rukovođenja magacinom, načina skladištenja eksplozivnih sredstava, protivpožarne zaštite, elektro zaštite itd. Veoma važan parametar prilikom projektovanja jamskih magacina eksplozivnih sredstava predstavlja minimalno sigurnosno rastojanje između susednih komora u kojima su smeštena eksplozivna sredstva u cilju sprečavanja potencijalnog neželjenog dejstva vazdušnog udarnog talasa, razornog dejstva eksplozije i seizmičkog dejstva eksplozije. U ovom radu su prikazani ...... Pravilnik o tehničkim normativima pri rukovanju eksplozivnim sredstvima u miniranju u rudarstvu, Beograd Department of Natural Resoruces, Mines and Energy of Queensland (2008) Guidance Note QGN 11 Handling Explosives in Underground Mines, Queensland, Australia BNQ (2022) Explosives - Magazines for ...
... explosives magazines is a complex engineering problem. The very purpose of explosives magazine requires the fulfillment of a number of conditions related to the safe positioning of the magazine, the fulfillment of the conditions of ventilation, access, management of the magazine, methods of storing ...Luka Crnogorac, Ognjen Popović, Toma Jovičić, Veljko Lapčević. "Bezbednosna rastojanja u jamskim magacinima eksploziva u domaćoj i međunarodnoj praksi" in 16th International mining conference OMC 2024, Jugoslovenski komitet za površinsku eksploataciju (2024)
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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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Elektromagnetska sprega sistema litosfera-atmosfera-jonosfera
Aleksandra B. Kolarski (2016-08-25)Radio talasi vrlo niskih frekvencija VLF (eng. Very Low Frequency) frekventnog opsega od 3 do 30 kHz, koji se prostiru talasovodom Zemlja-jonosfera (50 -90 km) su, kao što je poznato, efikasni i nezamenljivi u osmatranju pojava u niskoj jonosferi, sa tla...prostiranje talasa vrlo niskih frekvencija, talasovod Zemlja-jonosfera, globalno električno kolo, atmosfersko električno pražnjenje, kratkotrajne svetlosne pojaveAleksandra B. Kolarski. "Elektromagnetska sprega sistema litosfera-atmosfera-jonosfera" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-08-25)
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‘Blue-’ and ‘Brown-speckled’ pottery from Qalhât, the Sultanate of Oman (13–16th centuries): Comparison with traditional Omani 19–20 century productions
Representative ‘Blue speckled’ (13–16th centuries) and ‘Brown speckled’ (13–21st century) wares recovered from the excavations in Qalhât or collected around Bahlâ city (Sultanate of Oman) were characterized by XRPD, SEM-EDS, Raman/optical microspectroscopy, and thermal expansion. Minerals present in the body (quartz, augite and albite as major phases, calcite, dolomite, rutile, anatase, phosphate, hematite and magnetite as minor phases) were identified by XRPD and/or Raman spectroscopy. SEM-EDXS microanalysis was performed on the glazes in order to compare their composition, especially ...Liliana Gianni, Hélène Renel, Aleksandar Kremenović, Philippe Colomban. "‘Blue-’ and ‘Brown-speckled’ pottery from Qalhât, the Sultanate of Oman (13–16th centuries): Comparison with traditional Omani 19–20 century productions" in Boletín de la Sociedad Española de Cerámica y Vidrio, Elsevier BV (2020). https://doi.org/10.1016/j.bsecv.2020.06.005
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Callovian (Middle Jurassic) Sphriganaria (Brachiopoda) from the Jordan Valley (Middle East)
Howard R. Feldman, Barbara V. Radulović, Fayez Ahmad. "Callovian (Middle Jurassic) Sphriganaria (Brachiopoda) from the Jordan Valley (Middle East)" in Historical Biology (2023). https://doi.org/10.1080/08912963.2022.2122823
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Bilingual lexical extraction based on word alignment for improving corpus search
Jelena Andonovski, Branislava Šandrih, Olivera Kitanović. "Bilingual lexical extraction based on word alignment for improving corpus search" in The Electronic Library, Emerald (2019). https://doi.org/10.1108/EL-03-2019-0056