Претрага
168 items
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State and perspective of individual household heating in Serbia: A survey-based study
This paper presents the results of the household survey on individual household heating systems in Serbia. The survey was conducted in the period October to December 2020 with the participation of 1100 households with individual household heating systems. The information collected in the questionnaire can be separated into three main parts: basic household data, current heating system characteristics, and households’ perceptions and attitudes. The survey results provide unique and comprehensive information concerning individual household heating systems and the main ...Boban Pavlović, Dejan Ivezić, Marija Živković. "State and perspective of individual household heating in Serbia: A survey-based study" in Energy and Buildings, Elsevier BV (2021). https://doi.org/10.1016/j.enbuild.2021.111128
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Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability
Marija Živković, Dejan Ivezić (2021)Transformation of the heating sector is recognized as being essential for ensuring reliable and afordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import dependency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered and treated as a big advantage of district heating systems. Despite many advantages, sewage wastewater heat is still a mostly unused resource at the global level and a totally unused ...рекуперација топлоте из отпадних вода, систем даљинског грејања, топлотне пумпе, енергетске уштеде, емисија угљендиоксида, енергетска безбедност, Србија... dioxide emission reduction of absorption waste heat pumps application for space heating. Mateu-Royo et al. (2020) presented the thermo-economic optimization, focusing on performance of the system and environmental analysis. Koll- mann et al. (2017) proposed a novel method to assess the integration ...Marija Živković, Dejan Ivezić. "Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability" in Clean Technologies and Environmental Policy, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10098-021-02063-6
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BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties
Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković (2023)To investigate the influence of spinel structure and sintering temperature on the functional properties of BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface from acetylacetonate precursors. As-prepared powders were additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the detailed examination of phase composition and morphology. The magnetic, dielectric, and ...ferroelectric, dielectric properties, magnetic properties, titanate/ferrite composites, phase composition... CrossRef] Safi Samghabadi, E.; Chang, L.; Khodadadi, M.; Martirosyan, K.S.; Litvinov, D. Scalable, cost-efficient synthesis and properties optimization of magnetoelectric cobalt ferrite/barium titanate composites. APL Mater. 2021, 9, 21104. [CrossRef] Tnorganics 2023, 11, 51 18 of 19 46. ...
... behavior. The favorable properties of BaTiOy/NiFe>Ou make this particular composite an ideal material choice for further studies on applications of multi-ferroic devices. Keywords: ferroelectric; dielectric properties; magnetic properties; titanate/ferrite composites; phase composition 1. Introduction ...Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković. "BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties" in Inorganics, MDPI AG (2023). https://doi.org/10.3390/inorganics11020051
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Mineral Resources of Serbia: Environmental, Societal and Economic Challenges
... (Stamenković et al. Optimization by response surface methodology and kinetic | KOH Hempseed oil Methanol to oil molar ratio 6.5:1, 2015) modelling of transesterification and characterization of the optimal catalyst to oil ratio 1.2 wt%, 43"C produced biodiesel (Rajković et al. Optimization by response ...
... and Optimization of Biodiesel Production from White Mustard (Sinapis Alba L.) Seed Oil by Quicklime-Catalyzed Transesterification.” Fuel 223: 125—39. doi:10.1016/j.fuel.2018.03.023. Kostić, M. D., A. V. Veličković, N. M. Joković, O. S. Stamenković, and V. B. Veljković. 2016. “Optimization and ...
... biofuels should be accounted for only if they meet the sustainability criteria set forth in the Directive, in the concluding remarks of the Reports it is said that in the absence of the adopted by-laws defining sustainability criteria and their verification in Serbia “the consumption of biofuel could ...Vladimir Simić, Rade Jelenković, Dragana Životić. "Mineral Resources of Serbia: Environmental, Societal and Economic Challenges" in Serbia: Current Issues and Challenges in the Areas of Natural Resources, Agriculture and Environment,, Nova Science Publishers, Inc. (2019)
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Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду
... Application of multi-criteria decision- making model for choice of the optimal solution for meeting heat demand in the centralized supply system in Belgrade. Energy, 67, 341–350. TANASIJEVIĆ M., IVEZIĆ D., JOVANČIĆ P., ĆATIĆ D., ZLATANOVIĆ D., 2013: Study of Dependability Evaluation for Multi-hierarchical ...
... (udžbenik). Rudarsko-geološki fakultet, Beograd. Др БОЖО КОЛОЊА, редовни професор KOLONJA B., KALASKY D.R., MUTMANSKY J.M., 1993: Optimization of Dispatching Criteria for Open-Pit Truck Haulage System Design Using Multiple Comparisons with the Best and Common Random Numbers. Proceedings of the 25th ...
... Simulation International, Volume 87, Number 8, pp. 726–742, SAGE Publications. DOI:10.1177/0037549711410902 KOSTOVIĆ M., GLIGORIĆ Z., 2014: Multi-criteria decision making for collector selection in the flotation of lead-zinc sulfide ore. Minerals Engineering, Avai- lable on line 18 August 2014, Elsevier ...главни и одговорни уредник Душан Поломчић. Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду, Београд : Универзитет у Београду, Рударско-геолошки факултет, 2016
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Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach
Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2021)Poor water solubility of new chemical entities is considered as one of the main obstacles in drug development, as it usually leads to low bioavailability after administration. To overcome these problems, the selection of the appropriate formulation technology needs to be based on the physicochemical properties of the drug and introduced in the early stages of drug research. One example of the new potential drug substance with poor solubility is DK-I-60-3, deuterated pyrazoloquinolinone, designed for the treatment of various neuropsychiatric ...... increasing complexity. J. Control Release 2019, 299, 31–43. [CrossRef] 23. Medarević, D.; Djuriš, J.; Ibrić, S.; Mitrić, M.; Kachrimanis, K. Optimization of formulation and process parameters for the production of carvedilol nanosuspension by wet media milling. Int. J. Pharm. 2018, 540, 150–161. ...Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić. "Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach" in Pharmaceutics, MDPI, Basel, Switzerland (2021). https://doi.org/10.3390/pharmaceutics13081188
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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-blocker... according to the previously mentioned information regarding the crystal structure of V)»Os, The model of V»Os was first subjected to geometrical optimization, followed by band structure calculations, using the PBE-D3 level of theory with Hubbard U value set to 3.5 eV for vanadium 3d states, a value ...Sanja 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
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Fuzzy stohastički model izbora sistema otvaranja podzemnog rudnika
Saša M. Jovanović (2016-05-16)Investiciono okruženje skopčano sa rudarskom industrijom je veoma svojstveno kada seuporedi sa okruženjima koje susrećemo u tipičnim proizvodnim industrijama. Neke odkarakterisitka rudarstva, koje su često naznačene kao jedinstvene su: visok intenzitetinvesticija, dugi predproizvodni periodi, visok rizik i neobnovljivost resursa.Investiranje u sistem otvaranja rudnika predstavlja dobar primer ireverzibilneinvesticije. Takva investicija zahteva pažljivu analizu, jer nakon njene realizacije ona sene može nadoknaditi bez značajnog gubitka vrednosti. Očigledno je da izbor sistemaotvaranja podzemnog rudnika pripada strateškom planiranju...... 164-170. [5] Brazil, M. and Thomas, D.A.(2007) Network Optimization for the Design of Underground Mines, Networks-DOI10.1002/net, 40-50. [6] Brazil, M., Lee, H., Rubinstein, H., Thomas, D., Weng, J., Wormald, C., et al. (2000). Network optimization of underground mine design. The AusIMM Proceedings ...
... Gligoric, Z., Beljic, C., Simeunovic, V., Shaft location selection at deep multiple orebody deposit by using fuzzy TOPSIS method and network optimization, Expert Systems With Applications, Volume 37, Issue 2, (2010), pp. 1408-1418. [18] Goguen J. A., The logic of inexact concepts, Synthese, 1969 ...Saša M. Jovanović. "Fuzzy stohastički model izbora sistema otvaranja podzemnog rudnika" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-05-16)
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Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series
Luka Crnogorac, Rade Tokalić, Zoran Gligorić, Aleksandar Milutinović, Suzana Lutovac, Aleksandar Ganić (2021)Underground mining engineers and planners in our country are faced with extremely difficult working conditions and a continuous shortage of money. Production disruptions are frequent and can sometimes last more than a week. During this time, gate road support is additionally exposed to rock stress and the result is its progressive deformation and the loss of functionality of gate roads. In such an environment, it is necessary to develop a low-cost methodology to maintain a gate road support system. ...deformacije podgrade, lasersko skeniranje, višekanalna singularna spektralna analiza, prognoza, klasterisanje fuzzy vremenskih serija... 2007; pp. 857–862. 10. Merlini, D.; Falanesca, M. Ceneri Base Tunnel advancement in difficult rock conditions: Tunnel design and construction optimization through back-analysis of the geomechanical parameters. In Proceedings of the World Tunnel Congress 2013 Geneva Underground—The Way to the Future ...
... validation of the interventions and an optimal understanding of the deformation behavior of the rock mass. Bao-Zhen Yao et al. [11] has presented a multi-step-ahead prediction model, based on a support vector machine, for tunnel surrounding rock displacement forecasting. This paper is divided into five ...
... · · z2N ... ... ... . . . ... zM1 zM2 zM3 · · · zMN , (5) As can be seen, the obtained data can be treated as a multichannel time series. Multi- variate singular spectrum analysis is a very useful tool to process such datasets. 2.2. Gateroad Support Deformation Forecasting Algorithm Our f ...Luka Crnogorac, Rade Tokalić, Zoran Gligorić, Aleksandar Milutinović, Suzana Lutovac, Aleksandar Ganić. "Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series" in Energies, MDPI (2021). https://doi.org/https://doi.org/10.3390/en14123710
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Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling
Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeBranislav Petrović, Veljko Marinović, Zoran Stevanović. "Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling" in Environmental Earth Sciences, Springer Science and Business Media LLC (2023). https://doi.org/10.1007/s12665-023-10911-5
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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
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Rezultati ispitivanja parametara čvrstoće i dinamičkih svojstava mermera i mogućnost njihove korelacije
Ispitivanja stena kao radne sredine, odnosno materijala sa kojim se gradi, na kome se gradi i u kome se gradi, svojom složenošću zahteva njeno svestrano izučavanje po velikom broju parametara. Zadatak Mehanike stena je da što bolje upozna ponašanje stenske mase i njenu otpornost na dejstvo pritiska, zatezanja i smicanja, kao i dinamičkih svojstava. Poznavanje navedenih parametara i njihova korelacija omogućavaju pouzdaniji izbor parametara za projektovanje danas sve zahtevnijih uslova kako podzemne, tako i površinske eksploatacije. U ovom radu ...mermer, jednoosna čvrstoća na pritisak, čvrstoća na istezanje, brzina longitudinalnih elastičnih talasa, korelacijaJelena Majstorović-Necković, Vladimir Čebašek, Veljko Rupar. "Rezultati ispitivanja parametara čvrstoće i dinamičkih svojstava mermera i mogućnost njihove korelacije" in 11. Međunarodna konferencija “Ugalj i kritični materijali" CCM 2023, Zlatibor, 11-14. oktobar 2023., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
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Hronološki pregled razvoja površinske eksploatacije lignita u Srbiji
U ovom preglednom radu dat je istorijski pregled razvoja površinske eksploatacije lignita na teritoriji Srbije, uz kratak osvrt na geološki nastanak i kvalitet i rezerve uglja, kao i mogućnosti korišćenja za dalju upotrebu. Kolubarski, Kostolački i Kovinski ugljeni baseni lignita u Srbiji, ne računajući Kosovsko-Metohijski i Drenički u sastavu AP Kosovo i Metohija po Rezoluciji 1244 UN, su ležišta najrasprostranjenijeg uglja - lignita u Srbiji koji se eksploatiše od druge polovine 20. veka na velikom broju površinskih kopova ...Bojan Dimitrijević, Radmila Gaćina, Bogoljub Vučković. "Hronološki pregled razvoja površinske eksploatacije lignita u Srbiji" in XI Međunarodna konferencija ugalj i kritični mineral CCM 2023, Zlatibor, 11-14. oktobar 2023., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
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Two approaches to compilation of bilingual multi-word terminology lists from lexical resources
In this paper, we present two approaches and the implemented system for bilingual terminology extraction that rely on an aligned bilingual domain corpus, a terminology extractor for a target language, and a tool for chunk alignment. The two approaches differ in the way terminology for the source language is obtained: the first relies on an existing domain terminology lexicon, while the second one uses a term extraction tool. For both approaches, four experiments were performed with two parameters being ...Branislava Šandrih, Cvetana Krstev, Ranka Stanković. "Two approaches to compilation of bilingual multi-word terminology lists from lexical resources" in Natural Language Engineering, Cambridge University Press (CUP) (2020). https://doi.org/10.1017/S1351324919000615
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Отпад из процеса сагоревања угља као сировина за добијање елемената ретких земаља
Бојан Земљак (2024)Због великог броја индустрија у којима се користе ови ресурси, глобална економија се у великој мери ослања на елементе ретких земаља. Елементи ретких земаља су есенцијална сировина — материјал за развој савремених технологија, али у односу на њихову огромну потражњу, њихово вађење је ограничено и повезано је са значајним утицајима на животну средину. Због њихове ограничене доступности, проблема који се јављају при процесима експлоатације, све више и више земаља почиње да тражи повољније могућности вађења елемената [REE] из секундарних ...... Yuan, C., Du, W. and Liu, D., 2015. Lipase-catalyzed process for biodiesel production: Enzyme immobilization, process · simulation ~ and optimization. Renewable and Sustainable Energy Reviews, 44, p.182-197. [170] Kim, J. and Azimi, G., 2020. Recovery of scandium and neodymium from blast furnace ...
... Effect of bake temperature from 200 to 800 C. Hydrometallurgy, 179, p.254-267. [180] Kim, R., Cho, H., Han, K.N., Kim, K. and Mun, M., 2016. Optimization of acid leaching of rare-earth elements from mongolian apatite-based ore. Minerals, 6(3), p.63. [181] Suksuchot, W., Ratanaphra, D., Nuchdang ...
... . [HFLM] – eHrm. Hollow fiber liquid membranes . [IOHA] – egm. Octanohydroxamic acid . [MF] – eprn. Membrane filtration . IMWCNT]| – eprn. Multi-Walled Carbon Nanotube . [PP] – eprn. Polypropylene plastic . [DNPPA] – eprzn. Di-nonyl phenyl phosphoric acid . [TOPO] – egrn. 7rioctylphosphine ...Бојан Земљак. Отпад из процеса сагоревања угља као сировина за добијање елемената ретких земаља, 2024
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Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes
... on the graphic display of significance of the environmental aspects, we observe the dominance of criteria K2, K1, and K4 when ranking the influence of coal exploitation, and the dominance of criteria K1 when we consider the effects of discharge of waste mining and process water and taking up of large ...
... Based on the graphic display of significance of the environmental aspects, we observe the dominance of criteria K2, K1, and K4 when ranking the influence of coal exploitation, and the dominance of criteria K1 when we consider the effects of discharge of waste mining and process water and taking up of large ...
... Level. Buildings 2014, 4, 295–319. [CrossRef] 28. Medved, M.; Ristovic, I.; Roser, J.; Vulic, M. An Overview of Two Years of Continuous Energy Optimization at the Velenje Coal Mine. Energies 2012, 5, 2017–2029. [CrossRef] 29. Szlavik, J.; Csete, M. Climate and Energy Policy in Hungary. Energies 2012 ...Jelena Malenović Nikolić, Dejan Vasović , Ivana Filipović , Stevan Mušicki, Ivica Ristović . "Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes" in Energies (2016). https://doi.org/https://doi.org/10.3390/en9121071
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Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal
Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)... tehnicki-izvestaji/TEH_Godisnjak2019_web_s.pdf (accessed on 2 February 2020). 8. European Commission. Improvement of Coal Carbonization through the Optimization of Fuel in Coking Coal Blends (RATIO-COAL); Luxembourg Publications Office of the European Union: Luxembourg, 2015; p. 18. 9. Mitrović, D.; Ðoković ...Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović. "Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal" in Polymers, MDPI AG (2021). https://doi.org/10.3390/polym13050759
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Анализа утицаја искоришћења у преради на резултате оптимизације површинских копова
Стефан Митић (2024)Одређивање оптималних граница површинског копа је сложен и итеративни процес који захтева мултидисциплинарну експертизу, софистициране технике анализе и пажљиво разматрање геолошких, рударских, економских,техничких, еколошких и друштвених фактора. Оптимизација подразумева генерисање серије шкољки, површинског копа на основу различитих фактора прихода (Revenue factor) са итеративним кораком промене цене метала у односу на базну цену. Свака генерисана шкољка представља инкрементално повећање запремине резерви према инкременталном повећању продајне цене метала. Велики број техно -економских фактора утиче на овај процес, и промена сваког од њих ...оптимизација површинског копа, анализа границе копа, оптимална контура копа, лежиште Бувач, профит, искоришћење у преради, трошкови прераде руде... Handbook. 3rd ed. s.1.:Society for Mining, Metallurgy, and Exploration, Inc. (SME). 30. Whittle J., 1999. A decade of open pit mine planning and optimization - The craft of turning algorithms into packages. Golden, Colorado, Colorado School of Mines. 31. Electronic source [Online] Available at: ...
... Cut-off grade optimisation to maximise the net present value using whittle 4X. Int. J. Mining and Mineral Engineering, 7(4). 9. Hall G., 2004. Multi-mine Better Than Multiple Mines. Perth, Orebody Modelling and Strategic Mine Planning Symposium. 10. Hartman, H. L., 1992. SME Mining Engineering ...
... Colorado: Society for Mining, Metallugy & Exploration (SME). 14.Joukoff T. ; Purdey D. ; Wharton C., 2004 . Development and Application of Whittle Multi-Mine at Geita Gold. Perth, Proceedings of the Orebody Modelling and Strategic Mine Planning Conference. 15. Kennedy B. A., 1990. Sur/face Mining ...Стефан Митић. Анализа утицаја искоришћења у преради на резултате оптимизације површинских копова, 2024
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Uticaj utiskivanja gas-lift gasa na prenos mase i toplote
Branko Grubač (2019)Nakon uvođenja kontinualnog gas-lifta, primećen je porast proizvodnje tečnog naftnog gasa, TNG, u postrojenju za preradu gasa, kao jednog od finalnih proizvoda dobijenog iz fluida gaso kondenzatnih i rastvorenog gasa iz naftnih bušotina. Pretpostavljeno je da se prisustvom gas-lift gasa uspostavlja drugačija ravnoteža faza u odnosu na slučaj bez gaslifta, te da je gas-lift gas stripovao propan i butane iz tečne u parnu fazu, što je dovelo do povećanja prinosa TNG-a. Napravljen je model bušotine koja radi u kontinualnom gas-liftu ...... Khamehchi, A novel approach to the gas-lift allocation optimization problem, Petroleum Science and Technology, Vol. 29, str 418-427, (2011) [50] E. Componogara, R. Nakashima, Applying dynamic programming to a gas - lift optimization problem, Proceeding of the 2nd Brazilian Conference on research ...Branko Grubač. Uticaj utiskivanja gas-lift gasa na prenos mase i toplote, Beograd : Rudarsko-geološki fakultet, 2019
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Surface functional groups and degree of carbonization of selected chars from different processes and feedstock
Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann (2022)The knowledge ofthe structural and chemical properties of biochars is decisive for their application as technical products. For this reason, methods for the characterization of biochars that are generally applicable and allow quality control are highly desired. Several methods that have shown potential in other studies were used to investigate two activated carbons and seven biochars from different processes and feedstock. The chars were chosen to cover a wide range of chemical composition and structural properties as a hardness ...Biougalj, različiti procesi dobijanja, različite sirovine, površinski aktivne grupe, x-ray, FT-IR,XPS... PA, Schultz J, Silva Matos TT, Fornari MR, Costa TG, MeurerL et al. Production of high- performance biochar using a simple and low-cost method: Optimization of pyrolysis parameters and PLOS ONE | hitps://doi.org/10.1371/journal.pone.0277365 November 17, 2022 35/38 PLOS ONE Surface functional groups ...
... methods, 1st ed., CRC Press/Taylor Francis Group, LLC, Boca Raton, FL, USA; 2017, pp. 229-244. Brewer CE, Unger R, Schmidt-Rohr K, Brown HC. Criteria to select biochars for field studies based on biochar chemical properties. Bioenergy Res. 2011; 4: 312—323. https://doi.org/10.1007/s12155-011i- ...Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann. "Surface functional groups and degree of carbonization of selected chars from different processes and feedstock" in PLOS ONE (2022). https://doi.org/10.1371/journal.pone.0277365