Претрага
33 items
-
Određivanje osnovnih parametara diskontinualnog transporta u funkciji kapaciteta utovara
Miloš Grujić (1977)Miloš Grujić. Određivanje osnovnih parametara diskontinualnog transporta u funkciji kapaciteta utovara, Beograd:Rudarsko-geološki fakultet, 1977
-
Istraživanje racionalizacije potrošnje toplotne energije u centralizovanom sistemu snabdevanja
Miodrag Grujić (2007)Miodrag Grujić. Istraživanje racionalizacije potrošnje toplotne energije u centralizovanom sistemu snabdevanja, Beograd:Rudarsko-geološki fakultet, 2007
-
Истраживањe могућности коришћења нискотемпературних извора топлоте за одрживи развој енергетике градова
Miodrag M. Grujić (2014-06-04)Одрживост је континуиран процес балансирања између животне средине, економске исоцијалне димензије, који се односи на системска побољшања животног окружења.Енергија се налази међу покретачима одрживог развоја везано за потребу за повећањесоцијалног благостања, његову кључну улогу у економском развоју и утицај на животнусредину. Урбане зоне, као центри потреба за енергијом и емисија угљеника, пружајузначајне могућности за промоцију одрживости енергетског система заједнице.Планирање нових енергетских капацитета, у складу са принципима одрживог развоја,обухвата спровођење политике повећања енергетске ефикасности и увођења обновљивихизвора енергије. Дисертација ставља ...одрживи развој, даљинско грејање, модел, сценарио, вишекритеријумскаанализа, нискотемпературни извори, ELECTRE, БеоградMiodrag M. Grujić. "Истраживањe могућности коришћења нискотемпературних извора топлоте за одрживи развој енергетике градова" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-06-04)
-
Arrival of Mining Technologies in Serbian Mines Through History
Grujić Miloš, Ristović Ivica (2010)Grujić Miloš, Ristović Ivica. "Arrival of Mining Technologies in Serbian Mines Through History" in Mining in Central Europe Through History, Belgrade, Košice:FMG Belgrade - TU Košice BERG Faculty (2010): 1-10 M14
-
Application of multi-criteria decision-making model for choice of the optimal solution for meeting heat demand in the centralized supply system in Belgrade
Grujić Miodrag, Ivezić Dejan, Živković Marija. "Application of multi-criteria decision-making model for choice of the optimal solution for meeting heat demand in the centralized supply system in Belgrade" in Energy 67, Amsterdam:Elsevier (2014): 341-350. https://doi.org/10.1080/15567240903330434 M21
-
Palynology and petrology of Upper Miocene lignite from the coastal zone of field “A”, the Kovin deposit (Serbia)
The paper presents the results of palynological research of lignite and sedimentary rocks, as well as petrology of lignite from the “A” field of the Kovin deposit, Serbia. The palynological data suggest changes in the vegetation during the deposition of organic matter with several well-developed zones in Late Miocene palaeomire. Palynofacies analysis indicate changes in palaeoenvironment from fluvio-deltaic with accumulation of siliciclastic, transition from distal dysoxic-anoxic, suboxic-anoxic to proximal suboxic-anoxic and reducing environment. The palynomorphs indicate wet humid swamp ...Jelena Milivojević, Zorica Lazarević, Dragana Životić. "Palynology and petrology of Upper Miocene lignite from the coastal zone of field “A”, the Kovin deposit (Serbia)" in Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen, Schweizerbart (2025). https://doi.org/10.1127/njgpa/2024/1227 М23
-
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 М21а
-
Structural and microstructural study of brookite based TiO2 nanocomposites with carbon black (C)
Structural and microstructural properties of TiO2-based nanocomposites with carbon black (C), synthesized by sol-gel-hydrothermal method, have been studied by XRPD and Raman scattering. Detailed size-strain analyses of XRPD and Raman scattering results are presented in order to investigate the influence of C content on brokite and anatase phase formation. The XRPD size-strain analyses have resulted in reliable structure and microstructure results for both anatase and brookite and their relative abundance ratio has been refined by Rietveld method. The brookite ...Aleksandar Kremenović, Mirjana Grujić-Brojčin, Nataša Tomić, Maja Šćepanović. "Structural and microstructural study of brookite based TiO2 nanocomposites with carbon black (C)" in The European Powder Diffraction Conference (EPDIC) Book of Abstracts, Šibenik, 31 May - 3 June 2022, EPDIC (2022) М34
-
High-cellulose content of in-situ Miocene fossil tree stumps and trunks from Lusatia lignite mining district, Federal Republic of Germany
Jolanta Kus, Martina Dolezych, Wilfrid Schneider, James C. Hower, Tamas Hofmann, Ezster Visiné Rajczi, Andras Bidló, Bernadett Bolodár-Varga, Reinhard F. Sachsenhofer, Achim Bechtel, Ksenija Stojanović, Dragana Životić, Ivan Kojić, Maria Mastalerz, Torsten Graupner, Wiliam E. Lukens, Lloyd Donaldson (2024)Second Miocene Seam Complex (2nd MFK; germ.: 2. Mioz¨aner Fl¨ozkomplex) holds many in-situ, not permineralised fossil tree stumps and trunks with high-cellulose contents. The state of preservation of a set of in-situ fossil trees (Taxodioxylon cryptomerioides, Sciadopityoxylon wettsteinii, and Quasisequoioxylon piskowitzense) collected from three open-cast mines (Welzow-Süd, Meuro, and Piskowitz) in Lusatia lignite mining district, Federal Republic of Germany was investigated using a multi-method research schema. Examination of preservation state of thermally immature fossil woods revealed: (1) well-preserved (non-deformed, ...ксилит, холоцелулоза, фосилно и модерно дрво, други слој лужичког лигнита, лигнит, ЦЛСМ, ЦЛСМ обојен калкофлуором, микро-ФТИР, биомаркери, изотопи угљеникаJolanta Kus, Martina Dolezych, Wilfrid Schneider, James C. Hower, Tamas Hofmann, Ezster Visiné Rajczi, Andras Bidló, Bernadett Bolodár-Varga, Reinhard F. Sachsenhofer, Achim Bechtel, Ksenija Stojanović, Dragana Životić, Ivan Kojić, Maria Mastalerz, Torsten Graupner, Wiliam E. Lukens, Lloyd Donaldson. "High-cellulose content of in-situ Miocene fossil tree stumps and trunks from Lusatia lignite mining district, Federal Republic of Germany" in International Journal of Coal Geology, Elsevier BV (2024). https://doi.org/10.1016/j.coal.2024.104494 М21а
-
From mixed brookite/anatase TiO2 nanopowder to sodium titanates: Insight into morphology, structure, and photocatalytic performance
Nataša Tomić, Mirjana Grujić-Brojčin, Aleksandar Kremenović, Mirjana Novaković, Vladimir Lazović, Maja Šćepanović (2024)A method to obtain sodium titanate nanoribbons starting from a mixture of brookite and anatase TiO₂ nanopowder is described. As-prepared TiO2 nanopowder with a major brookite phase was used as a precursor in an alkaline hydrothermal approach, where the temperature was kept at 200 °C. The influence of hydrothermal treatment and consequent annealing temperature (T = 500 ) on the crystal structure, phase composition, and morphology of samples were investigated by X-ray powder diffraction (XRPD), Raman and FTIR spectroscopy, ...nanostrukturirani materijali, hemijska sinteza, difrakcija rendgenskih zraka, skenirajuća elektronska mikroskopija, kristalna struktura, katalizaNataša Tomić, Mirjana Grujić-Brojčin, Aleksandar Kremenović, Mirjana Novaković, Vladimir Lazović, Maja Šćepanović. "From mixed brookite/anatase TiO2 nanopowder to sodium titanates: Insight into morphology, structure, and photocatalytic performance" in Ceramics International, Elsevier BV (2024). https://doi.org/10.1016/j.ceramint.2024.10.063 М21
-
Size–strain line-broadening analysis of anatase/brookite (TiO<sub>2</sub>)-based nanocomposites with carbon (C): XRPD and Raman spectroscopic analysis
Aleksandar Kremenović, Mirjana Grujić-Brojčin, Nataša Tomić, Vladimir Lazović, Danica Bajuk-Bogdanović, Jugoslav Krstić, Maja Šćepanović (2022)A size-strain line-broadening analysis of the XRPD patterns and Raman spectra for two anatase/brookite (TiO2)-based nanocomposites with carbon (C) was carried out and the results compared with those of a similar sample free of carbon. The crystal structures and microstructures of anatase and brookite, as well as their relative abundance ratio, have been refined from XRPD data by the Rietveld method (the low amount of carbon is neglected). The XRPD size-strain analysis resulted in reliable structure and microstructure results ...Materials Chemistry, Metals and Alloys, Atomic and Molecular Physics, Optics, Electronic, Optical and Magnetic MaterialsAleksandar Kremenović, Mirjana Grujić-Brojčin, Nataša Tomić, Vladimir Lazović, Danica Bajuk-Bogdanović, Jugoslav Krstić, Maja Šćepanović. "Size–strain line-broadening analysis of anatase/brookite (TiO2)-based nanocomposites with carbon (C): XRPD and Raman spectroscopic analysis" in Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials, International Union of Crystallography (IUCr) (2022). https://doi.org/10.1107/S2052520622001731 М22
-
Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content
Nina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović (2019)Mesoporous anatase nanopowders were doped with 0.05−0.5 mol% of W6, in order to obtain more efficient photocatalyst than TiO2 Degussa P25 in the degradation of amitriptyline (AMI) under simulated solar irradiation (SSI). Dominant XRPD peaks were ascribed to anatase phase, with additional peaks which could correspond to brookite, TiO2 bronze and sodium titanate, Na2Ti9O19. The Raman scattering measurements have confirmed anatase as dominant phase, with broad Raman feature at ~270 cm−1 possibly related to Ti–O–Na stretching vibration. All W-doped ...Sol-gel synthesis, Doped titania nanopowders, XRPD, Raman spectroscopy, Adsorption and photocatalytic degradation, Psychiatric drugsNina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović. "Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content" in Journal of Sol-Gel Science and Technology, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s10971-019-04925-4 М21
-
Photocatalytic Activity of the V2O5 Catalyst toward Selected Pharmaceuticals and Their Mixture: Influence of the Molecular Structure on the Efficiency of the Process
Sanja J. Armaković, Aleksandra Jovanoski Kostić, Andrijana Bilić, Maria M. Savanović, Nataša Tomić, Aleksandar Kremenović, Maja Šćepanović, Mirjana Grujić-Brojčin, Jovana Ćirković, Stevan Armaković (2023)Due to the inability of conventional wastewater treatment procedures to remove organic pharmaceutical pollutants, active pharmaceutical components remain in wastewater and even reach tap water. In terms of pharmaceutical pollutants, the scientific community focuses on -blockers due to their extensive (over)usage and moderately high solubility. In this study, the photocatalytic activity of V2O5 was investigated through the degradation of nadolol (NAD), pindolol (PIN), metoprolol (MET), and their mixture under ultraviolet (UV) irradiation in water. For the preparation of V2O5, facile ...DFT analysis, metoprolol, nadolol, nanomaterial characterization, photocatalysis, pindolol, β-blockerSanja J. Armaković, Aleksandra Jovanoski Kostić, Andrijana Bilić, Maria M. Savanović, Nataša Tomić, Aleksandar Kremenović, Maja Šćepanović, Mirjana Grujić-Brojčin, Jovana Ćirković, Stevan Armaković. "Photocatalytic Activity of the V2O5 Catalyst toward Selected Pharmaceuticals and Their Mixture: Influence of the Molecular Structure on the Efficiency of the Process" in Molecules, MDPI AG (2023). https://doi.org/10.3390/molecules28020655 М22