Претрага
748 items
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Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining
Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić (2024)Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić. "Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining" in Proceedings of the Bulgarian Academy of Sciences, Bulgaria, 28. maj 2024 , Prof. Marin Drinov Publishing House of BAS (Bulgarian Academy of Sciences) (2024). https://doi.org/10.7546/CRABS.2024.07.10
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Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining
Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić (2024)Radmila Gaćina, Sanja Bajić, Bojan Dimitrijević, Tomislav Šubaranović, Čedomir Beljić, Dragoljub Bajić. "Application of the VIKOR Method for Selecting the Purpose of Recultivated Terrain after the End of Coal Mining" in Comptes rendus de l’Acad ́emie bulgare des Sciences, Proceedings of the Bulgarian Academy of Sciences (2024)
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Hypogene speleogenesis related to porphyry magmatic intrusions and its influence on subsequent karst evolution in the Peruvian high Andes
Alexander Klimchouk, David Evans, Sasa Milanovic, Cristian Bittencourt, Mauro Sanchez, F. Carlos Aguirre (2022)Alexander Klimchouk, David Evans, Sasa Milanovic, Cristian Bittencourt, Mauro Sanchez, F. Carlos Aguirre. "Hypogene speleogenesis related to porphyry magmatic intrusions and its influence on subsequent karst evolution in the Peruvian high Andes" in Geomorphology, Elsevier BV (2022). https://doi.org/10.1016/j.geomorph.2022.108488
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Fragmentation Size Prediction of Blasted Material Using a Specialized Software for Drilling and Blasting
Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić, Miljan Gomilanović (2024)Design and optimizing the drilling and blasting parameters, should fill the requirements for the capacity, fragmentation size, and technical characteristics of loading and transport equipment, and enable a safe work at the open pit. Besides mentioned, it also achieves the minimal impact on the environment of the open pit and decreases the negative effects on the environment, especially in the blast vibration and flyrock. To obtain the best possible blasting effects and consider all the factors, a specialized software is ...Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić, Miljan Gomilanović. "Fragmentation Size Prediction of Blasted Material Using a Specialized Software for Drilling and Blasting" in The 55th International October Conference on Mining and Metallurgy, Mining and Metallurgy Institute Bor (2024). https://doi.org/10.5937/IOC24077M
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Sorpcija herbicida na neorganski i organski modifikovanom prirodnom montmorionitu iz Bogovine
Lazar M. Kaluđerović (2018-01-17)fikasnost prilikom sorpcije S-metolahlora i klomazona od strane neorganskih iorganski modifikovanih montmorionita sa lokaliteta Bogovina odreĎena je metodombach adsorpcije. Uzorci montmorionita su tretirani prvo rastvorom NaCl a zatim irazličitim koncentracijama organskih kompleksa. Adsorpcione izoterme su dobijenetretiranjem uzoraka različitim koncentracijama herbicida. Detaljna mineraloškakarakterizacija uzoraka uraĎena je metodom rendgenske difrakcije. Rezultati interakcijemontmorionita sa organskim kompleksima i herbicidima dobijeni su primenomrendgenskih, optičkih, termičkih i spektroskopskih metoda.Na osnovu rezultata rendgenskih ispitivanja uzoraka, utvrĎeno je prisustvoorganskih kompleksa i herbicida u meĎuslojnom prostoru montmorionita.Montmorioniti modifikovani ...adsorpcija, montmorionit, heksadeciltrimetilamonijum bromid,feniltrimetilamonijum hlorid, S-metolahlor, klomazon... Chemosphere, 90: 699–705. Bedmar F., Daniel P., Costa J., Gimenez D. 2011. Sorption of acetochlor, S-metolachlor and atrazine in surface and subsurface soil horizons of Argentina. Environmental Toxicology and Chemistry, 30(9): 1990–1996. Boyd S. A. Jaynes W. F., Ross B. S. 1991. Immobilization ...
... Imai Y., Wada M., Ebina T., Hanaoka T., Mizukami F. 2006. Adsorption and desorption behaviors of flavor molecules into a microporous pillared clay mineral and the application to flavor capsule composites. Applied Clay Science, 33: 99– 108. Jaynes W. F., Boyd S. A. 1990. Trimethylphenylammonium- smectite ...
... Primel E. G., Goncalves F. F., Kurz M. H. S., Mistura C.M. 2003. Development and validation of a high-performance liquid chromatographic procedure for the determination of herbicide residues in surface and agriculture waters. Journal of Separation Science, 26: 935–938. Zhang W., Ding, Y., Boyd S. ...Lazar M. Kaluđerović. "Sorpcija herbicida na neorganski i organski modifikovanom prirodnom montmorionitu iz Bogovine" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-01-17)
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Development of an integrated model for open-pit-mine discontinuous haulage system optimization
Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović (2024)Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović . "Development of an integrated model for open-pit-mine discontinuous haulage system optimization" in Sustainability, MDPI (2024). https://doi.org/10.3390/su16083156
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Development of an Integrated Model for Open-Pit-Mine Discontinuous Haulage System Optimization
Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević, Dejan Stevanović (2024)The selection of the optimal equipment for discontinuous haulage systems is one of the most important decisions that need to be made when an open-pit mine is designed. There are a number of influencing factors, including natural (geological and environmental), technical, economic, and social. Some of them can be expressed numerically, in certain units of measure, while others are descriptive and can be stated by linguistic variables depending on the circumstances of the project. These factors are characterized by ...Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević, Dejan Stevanović. "Development of an Integrated Model for Open-Pit-Mine Discontinuous Haulage System Optimization" in Sustainability, MDPI (2024). https://doi.org/doi.org/10.3390/su16083156
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A hundred years of Milutin Milanković's climate change theory - geological implications
Dejan Radivojević (2020)Миланковићева теорија циклуса објављена пре сто година је најважнија теорија у наукама које проучавају климу и имала је велики утицај на дисциплине које се баве Земљом. Ипак, његов рад је чекао више од педесет година да би добио потврду. Може се рећи да Миланковићев рад највећи утицај на геологију има у изради астрономске временске скале, подршци хипотези континенталног дрифта и палеоклиматологији. Добри резултати примене астрономске временске скале на неогене седименте иницирали су примену ове методе у мезозојским и у последње ...циклостратиграфија, астономска временска скала, геолошка временска скала, климатске промене, континентални дрифт... mum, Walvis Ridge (oDP Sites 1262, 1263, and 1266): Evidence from Mn and U enrichment factors. Paleo- ceanography, 25: PA4202. DEWEy, j. F., CANDE, S. & PITMAN, W. C. 1989. Tectonic evolu- tion of the India/Eurasia Collision zone. Eclogae geol. Helv., 82 (3): 717–734. EARLE, S. 2015. Physical Geology ...
... coastal wa- ters. Environmental Health Perspectives, 108: 120–125. KöPPEN, W. & WEGENER, A. 1924. die klimate der geologis- chen vorzeit. verlag von Gebrüder Bornträger, Berlin, 256 pp. LASKAR, j., RoBUTEL, P., joUTEL, F., GASTINEAU, M., CoRREIA, A.C.M., LEvRARD, B. 2004. A longterm numerical solution ...
... SHACKLEToN, N. j. 1976. variations in the Earth’s orbit: Pacemaker of the Ice Ages. Science, 194: 1121–1132. HILGEN, j.F., BRINKHUS, H., zACHARIASSE, W-j. 2006. Unit stra- totypes for global stages: The Neogene perspective. Earth-Science reviews, 74: 113–125. HINNov, L. A. & oGG, j.G. 2007. Cyclos ...Dejan Radivojević. "A hundred years of Milutin Milanković's climate change theory - geological implications" in Geološki anali Balkanskoga Poluostrva, Univerzitet u Beogradu, Rudarsko geološki fakultet (2020). https://doi.org/10.2298/GABP201125011R
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Design of a sucker rod pumping system
Ana Ponoćko (2024)For a long time in the history of oil production, sucker rod pumps have been the first and in many cases the only choice when it comes to mechanical extraction methods. Proper selection of each individual element of the system enables optimization, which entails benefits in the form of increased efficiency and reduced costs. The first part of the paper presents the underground and surface equipment of the rod pump and describes the operation of the entire system. The ...... 44828 w Water Salinity 6221.83____ppm WorkDone ByPump|9050.19 — |N _E pre== Work Done By Polished Rod| 33699.1 — |N Gas Oil Ratio, 25.8 Sm3/Ssm3 }| — — Top Rod % Of Goodman Diagram, 19.8874 percent [ EGG e Top RodLoadmg 30.7254 | percent IEnner Stroke Rate, Calculate Production Rate I f f Volumetric ...
... Rod 7 (0.875 inch) Fo/s«ooasm Rod 6 (0.75 inch) 1 /Kr 0.0017572 (n)b) CounterWeight Required (CBE), 19603 |N W CounterWeight Positon,0.63444. m - | |_Pump Intake Pressure D F·:tnr} 176092 ___| Method Stress (Max) 659.216 |bar | Calculated From IPR. Stress (Min) 290.254 – |bar Calculated ...
... 4]. Walking Beam Equalizer Bearing Horsehead — Horsel Equalizer Pitman Crank Gear Reducer Wireline Hanger (Bridle) Counterweight j ·-W \-——Tubing String Brake Lever Figure 1.1: Components ofa Rod Pumping System /5/ 2.1. Working Cycle of a Sucker Rod Pump The alternating: movement ...Ana Ponoćko. Design of a sucker rod pumping system, 2024
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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 ...... l. Pharmaceutics 2021, 13, 1188 4 of 19 Table 1. Composition of developed nanocrystal dispersions. Formulation DK-I-60-3 (% w/w) SLS (% w/w) PVP (% w/w) Water (% w/w) SLS:PVP Ratio F1 0.20 0.02 0.20 to 100 1:10 F2 0.20 0.02 0.08 to 100 1:4 F3 0.20 0.02 0.04 to 100 1:2 F4 0.20 0.02 0.02 to 100 1:1 ...
... nanocrystal dispersions preparation, a modified wet ball milling technique was applied, similarly to the procedure explained earlier [13]. DK-I-60-3 (0.2% w/w) was homog- enized in aqueous stabilizer solution for 5 min at 10,000 rpm on a rotor stator homogenizer IKA Ultra-Turrax® T25 digital (IKA®-Werke GmbH ...
... in the commercial pharmaceutical development process. Int. J. Pharm. 2013, 453, 142–156. [CrossRef] [PubMed] 5. Alhalaweh, A.; Alzghoul, A.; Kaialy, W.; Mahlin, D.; Bergström, C.A. Computational predictions of glass-forming ability and crystallization tendency of drug molecules. Mol. Pharm. 2014, 11 ...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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Минерагенија зеолитских туфова Србије
Vladan Kašić (2018-02-05)Лежишта наших зеолитских туфова (Златокоп, Игрош, Јабланица 1, Беочин, Топоница и Сланци) која су овде била предмет детаљних истраживања, просторно и генетски везана су за вулканске и вулканокластичне стене маринских средина сенонске и неогенске старости и језерске седименте неогене старости и настала су као продукт девитрификације вулканског стакла.Током лабораторијских испитивања при изради ове докторске дисертације, примењене су следеће аналитичке методе: оптичка испитивања петрографских препарата; рендгенска дифракција праха (XRD); скенирајућа електронска микроскопија (СЕМ метода); хемијска карактеризација зеолитских туфова у оквиру ...... Conference, Tokio, Japan Geol. Survey, 121-134. Ming D. W., Dixon J. B., (1987): Quantitative determination of clinoptilolite in solis by cation-exchange capacity method. Clays and Clay Minerals, 35, 6, 463-468. Ming D. W., Mumpton, F. A. (1989): Zeolites in Soils Environments, in Dixon J. B. ...
... acid–modified zeolitic mineral clinoptilolite. Chemical Industry63 (5), 407–414. Mercer B. W., Ames L. L., (1978): Zeolite ion exchange in radioactive and municipal wastewater treatment. In Sand L. B. and Mumpton F. A. (Eds.) Natural Zeolites, Occurrence, Properties, Use, Zeolite ’76, Tuscon, Arizona ...
... of Water Chemistry and Technology, 18, 6-9. Tari G., Horváth F., Rumpler J., (1992): Styles of extension in the Pannonian Basin. Tectonophysics 208, 203–219. terBorgh M., Vasiliev I., Stoica M., Knežević S., Matenco L., Krijgsman W., Rundić LJ., Cloetingh S., (2013): The isolation of the Pannonian ...Vladan Kašić. "Минерагенија зеолитских туфова Србије" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-02-05)
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Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems
Dejan Ćebić, Nebojša M. Ralević (2021)Dejan Ćebić, Nebojša M. Ralević. "Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems" in Journal of Mathematical Chemistry, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10910-021-01253-3
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FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina
... 1525—1534. DOI: 10.1016/j.saa.2008.05.015 Liu, W., Gan, J., Papiernik, S.K., Yates, S.R., 2000. Structural influences in relative sorptivity of chloroacetanilide herbicides on soil. J. Agric. Food Chem., 48, 4320 — 4325. DOI: 10.1021/jf090970+ Liu, W., Gan, J., Yates, S.R., 2002. Influence of Herbicide ...
... +NM a 3i af Š | 5 š [ IB || P || \8 ti o E \, 8 \ i 33 MA š šš ž B NaM EE “0 300 200 100 1500 1000 Wavenumber {cm ) Wavenumber {cm ') š 18p f) PTMA |j | |ž š \|E a E 13 i - PMV A | i n g"VA/B i g .| š P E Hi )s i . H | Š PONE! š i || || š . } ii |j | ı || || _MO |1 315 /WAW M | ...
... montmorillonites modified with different concentrations of HDTMA cation;e) montmorillonites modified with differentconcentrations of PTMA cation: f) PTMA chloride. Absorption bands at 799 and 779 cm'! indicate the presence of cristobalite (Madejova and Komadel, 2001). The band at 1456 cm'! indicates ...Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević. "FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina" in Book of Proceedings / 3rd International and 15th National Congress Soils for Future Under Global Challenges, 21-24 September 2021 Sokobanja, Serbia , Belgrade : Serbian Society of Soil Science (2021)
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Lower Berriasian ammonites from Dedina (Golubac Mountains, eastern Serbia) and their biostratigraphic implication
... B|JeJeJe59} Mss \ w e s & s M uwwee"bk sq as 9 e o 6ls WigWsuss 6) . - 4 3 |A| jA - 1 F I T H E M T T |ma T i HE - jmu[sSmu gima[3i s s LJ |_| Af|_|[| f > || |A ||__[ |A| r L I LITI |I | _ fi4 | } || | f|| Fj || LI |_ ...
... Khimshiashvili, N.G., 1989. Berriasellidy Kavkaza. Mecniereba, Tbilisi, pp. 1—86. Kilian, W., 1889. Etudes palćontologiques sur les terrains secondaires et tertiaires de T'Andalousie. In: Bertrand, M., Kilian, W. (Eds.), Mission d'Andalousie. Memoires de IAcadćmie des Sciences de lInstitut National ...
... |_| |_ ffi4f| f|0 | _| |_ |_f|4 Hi LI | |}- -} -_-L}] E B I J EsH|I ||BLJ-| a -B EaE E s |M | LJ |E | J E || || || A / | | j ||> |M | || }A | | || -i I L J Lj - I - - -| | - { | LJ ||_|| |A|}_| |_{L_| |f= | L J i |Epi|s ...Zdenek Vasícek , Dragoman Rabrenović, Petr Skupien, Barbara Radulović. "Lower Berriasian ammonites from Dedina (Golubac Mountains, eastern Serbia) and their biostratigraphic implication" in Cretaceous Research (2023). https://doi.org/10.1016/j.cretres.2023.105623
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Mineral and Thermal Waters of Serbia: Multivariate Statistical Approach to Hydrochemical Characterization
Maja Todorović, Jana Štrbački, Marina Ćuk, Jakov Andrijašević, Jovana Šišović, Petar Papić . "Mineral and Thermal Waters of Serbia: Multivariate Statistical Approach to Hydrochemical Characterization" in Mineral and Thermal Waters of Southeastern Europe, Springer International Publishing (2016). https://doi.org/10.1007/978-3-319-25379-4
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Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)
Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović (2014)Sphene (CaTiSiO5), a calcium titanosilicate ceramic has been prepared from a powder mixture of CaCO3, TiO2 and SiO2 using vibro-milling for homogenization and activation of precursors. During the highpressure and high-temperature synthesis (HPS) process at 4 GPa and 1,200 °C, sphene undergoes into phase transition, from room-temperature phase P21/a to high-temperature phase A2/a. Evidence of that structural phase transition is given in this paper using infrared, Raman spectroscopy and X-ray powder diffraction. Rietveld refinement was employed to get the ...Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović. "Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)" in Physics and Chemistry of Minerals, Springer Science and Business Media LLC (2014). https://doi.org/10.1007/s00269-014-0693-x
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The effect of finite driving rate on avalanche distributions
Statistics, Probability and Uncertainty,Statistics and Probability,Statistical and Nonlinear PhysicsSonja Radić, Sanja Janićević, Dragutin Jovković, Đorđe Spasojević. "The effect of finite driving rate on avalanche distributions" in Journal of Statistical Mechanics: Theory and Experiment, IOP Publishing (2021). https://doi.org/10.1088/1742-5468/ac1f12
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The subthermal potential of karstic groundwater of Kučaj–Beljanica region in Serbia estimated by the multivariate analysis
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeLjiljana Vasić, Dragana Ž. Živojinovic, Vladana Rajaković-Ognjanović, Huang Fen, Cao Jianhua. "The subthermal potential of karstic groundwater of Kučaj–Beljanica region in Serbia estimated by the multivariate analysis" in Environmental Earth Sciences, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s12665-021-09392-1
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Adaptive neuro-fuzzy prediction of operation of the bucket wheel drive based on wear of cutting elements
The capacity of the rotor excavator depends largely on the operation of the subsystem for digging. There is a great contribution to the correct and sharp teeth when the capacity is the highest. In the function of time, the teeth become clogged due to abrasive wear, or changes in their geometric shape. To analyze the bucket wheel drive in depend on wear of the cutting elements in this study adaptive neuro fuzzy inference system (ANFIS) approach was implemented. ANFIS ...Filip Miletić, Predrag D. Jovančić, Milos Milovančević, Dragan Ignjatović. "Adaptive neuro-fuzzy prediction of operation of the bucket wheel drive based on wear of cutting elements" in Advances in Engineering Software, Elsevier BV (2020). https://doi.org/10.1016/j.advengsoft.2020.102824
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Површинско распадање керсантита из Тешића мајдана у корелацији са начином обраде на примеру малог степеништа (Београдска тврђава)
Невенка Новаковић (2024)Архитектуру Београда на прелазу 19. у 20. век обележила је употреба керсантита из каменолома Тешића мајдана. Kao камен високих декоративних својстава, керсантит је коришћен за јавне споменике, делове или потпуну изградњу објеката (Народна скупштина Србије, Мало степениште, Народни музеј и др.). Како очување споменика културе изискује познавање својстава уграђеног камена, истраживања су обухватила детаљно проучавање петролошких, хемијских и физичких карактеристика керсантита из Тешића мајданa и узорака камена из споменика Мало степениште (студија случаја). Након детаљног мапирања стања керсантита, лабораторијских ...керсантит, Мало степениште, споменик културе, архитектонски камен, физичко-хемијско распадање, мапирање, форме распадања, површинска обрадаНевенка Новаковић. Површинско распадање керсантита из Тешића мајдана у корелацији са начином обраде на примеру малог степеништа (Београдска тврђава), Београд : [Н. Новаковић], 2024