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Упит dcterms_subject_txt: municipal solid waste

320 items

  • Adaptive neuro-fuzzy prediction of operation of the bucket wheel drive based on wear of cutting elements

    Filip Miletić, Predrag D. Jovančić, Milos Milovančević, Dragan Ignjatović (2020)
    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 ...
    Pogon rotornog točka, habanje, rezni elementi, ANFIS

  • Environmental Energy Security Indicators as Tools for Environmental Protection

    Aleksandar Madžarević, Dejan Ivezić, Marija Živković , Miloš Tansijević (2019)
    Еколошка прихватљивост је постала незаменљив синтезни показатељ сваке валидне енергетске анализе у последње две-три деценије. Енергетска безбедност је у директној хармонији с еколошком прихватљивошћу кроз многе прописане политичке циљеве, економске користи, правне тековине итд. Индикатори еколошке сигурности представљају један од основних елемената за одређивање енергетске безбедности и снажне алате за усмеравање енергетског сектора ка одрживом развоју. У овом раду, анализа је била концентрисана на показатеље енергетске безбедности у области животне средине који се односе на сектор природног гаса у ...
    енергетска безбедност, еколошки енергетски индикатори, заштита животне средине, еколошка прихватљивост
    ... Table 3. The emission factors of the NOx [19] Fuel Еmission [g NOx/GJ] Coal 1.5 Fuel-oil 0.6 Natural gas 0.1 Fire wood 3.2 3.2.3 Solid particles Combustion of fossil fuels, in addition to the emission of harmful gases, leads to the emission of particles. The particles further initiate ...
    ... primarily on the type of energy used and the sector used, which causes the combustion regime, the existence of filters, etc. The emission factors of the solid particles and the unit of energy produced are shown in Table 4. The use of energy sources (low efficiency devices, without modern measurement, control ...
    ... operation of the plant, equipment and adequacy of equipment, as well as regular maintenance of it. 5 Table 4. The emission factors of the solid particles [21] Fuel Sector Emission [gparticulars/GJ] Coal Public and Commercial 400 Industry 180 District Heating Plant 120 Fuel-oil ...

  • The influence of Al<sup>3+</sup>ion on porcine pepsin activity<i>in vitro</i>

    Vesna M. Pavelkić, Kristina R. Gopcević, Danijela Z. Krstić, Marija A. Ilić (2008)
    The in vitro effect of Al3þ ions in the concentration range 1.7·1026M–8.7·1023M on pepsin activity at pH 2, via kinetic parameters and its electrophoretic mobility was evaluated. Kinetic study demonstrated the existence of an activation effect of Al3þ at pH 2 on pepsin molecule. Kinetic analysis with respect to concentrations of haemoglobin showed that Al3þ ions increase the maximal velocity (Vmax) and kcat values rather than apparent affinity for substrate (KS) implying the non-competitive nature of activation which indicated ...
    Пепсин, алуминијум, кинетика, активација, електрофоретска мобилност
    ... + 10OmM Al 200 250 300 %#3%0 ·H<#400 A{nm) Figure 5. A-UV absorption spectra of pepsin (solid curve) and pepsin treated with 10 mM AP? (dotted curve). B – UV absorption spectra ofhaemoglobin (solid curve) and haemoglobin treated with 10 nM AP? (dotted curve). Other spectral curves obtained in ...
    ... Al k :: 4000 3000 2000 1000 o Wavcnumbver {cm !) Figure 6. _ A-IR spectra of pepsin (solid curve,1) and pepsin in a presence of 10mM Al * ions (dotted curve,2) and B - IR spectra of haemoglobin (solid curve,1) and haemoglobin in a presence of 10mM Al ions (dotted curve,2). IR spectra were ...
    ... Figures 5 A and B shows only UV spectra in a presence ofIO0mM AP?. IR studies. IR spectra of pepsin and haemoglobin in KBr matrices in absence (solid curve 1) and in a presence 1IOmM Al ions (dotted curve 2) are presented in Figures 6 A and B. As can be seen, presence of IOmM Al ion causes ...

  • Depth estimation of archeological objects using Euler 3D deconvolution of magnetic data

    Vesna Cvetkov, Ilija Vasiljević, Mirko Petković (2015)

  • Korelacija magnetnog susceptibiliteta i sadržaja metala u flotacijskom jalovištu

    Filip Abramović, Vesna Cvetkov, Aco Ilić, Dragana Životić (2022)
    Procena metala u rudama, jalovištu i zemljištu se tradicionalno određuje hemijskim metodama kao što su Rengen fluorescentna analiza (XRF), Instrumentalna neutronska aktivaciona analiza (INAA) i Masena spektrometrija induktivno spregnute plazme (ICP-MS). Neke od pomenutih metoda su veoma zahtevne i skupe, te se nametnula potreba ka traženju jeftinijeg alata za brzu procenu prisustva pojedinih metala. Tokom poslednjih nekoliko decenija, mnoge studije su pokazale da su magnetna merenja dovoljno osetljiva da detektuju magnetni signal feromagnetnih materijala, a samim tim i metala ...
    flotacijsko jalovište, makroelementi, magnetna merenja

  • Evaluation of the effects of wastewater heat pump integration into district heating systems by simulation

    Dejan Ivezić, Marija Živković, Dimitrije Manić, Aleksandar Madžarević, Boban Pavlović, Dušan Danilović (2023)
    The integration of wastewater heat pumps (using purified water) in district heating systems is analyzed in this paper. The simulation procedure is proposed to analyze the impacts of stochasticity of purified water temperature and flow to heat pump integration and operation. The analysis includes calculation of the daily and seasonal coefficient of performance, as well as fossil fuel savings and CO2 emission reduction due to wastewater heat pump use. The proposed procedure is implemented for the case study in ...
    otpadne vode, toplotna pumpa, daljinsko grejanje, simulacija

  • Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise

    Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Mladen R. Nedimović, Juan Pablo Canales, Hélène D. Carton, John C. Mutter, Javier Escartín (2023)
    Multidisciplinary

  • 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
    ... outside the bronze electrodes was only filled with electrolyte and the filling height of the solid material was about 2.5 cm. The exact height was measured with a caliper rule. Since the surface of the solid mixture was not exactly flat in the rectangular sample holder, the accuracy of the cell constant ...
    ... hitps://doi.org/10.3390/pr8050516. Gonzalez-Arias J, Sanchez ME, Cara-Jimenez J, Baena-Moreno FM, Zhang Z, Hydrothermal carboni- zation of biomass and waste: A review. Environ Chem Lett. 2022; 20: 211—221. https://doi.org/10. 1007/s10311-021-01311-x. Fodah AEM, Ghosal MK, Behera D. Microwave-assisted ...
    ... Kozinski JA, Dalai AK, Sutarto R. Effects of temperature on the physicochemi- cal characteristics of fast pyrolysis bio-chars derived from Canadian waste biomass. Fuel. 2014; 125: 90—100. http://dx.doi.org/10.1016/j.fuel.2014.01.083. Inyang MI, Gao B, Yao Y, Xue YW. Zimmerman A, Mosa A, et al. A review ...

  • Effects of Energy Production and Consumption on Air Pollution in Serbia

    Marija Živković (2019)
    Energy production and combustion, mostly from unregulated or inefficient fuel combustion, are the single most important anthropogenic sources of air pollutant emissions. Energy sector in Serbia is highly fossil fuel intensive: 87.88% of energy consumed in Serbia is related to fossil fuels, while almost 95% of energy sources are combusted. In 2017. energy related carbon dioxide emission in Serbia is was 47.95 million tones. The main source of carbon dioxide emission was coal, responsible for almost 70% of energy ...
    energy related emissions, Serbia
    ... > Bl chapter sna coal ol.gas, process andtyreand——andiighting—transportand.” solvents and Doenergy’ emissions Toad wea, transformation waste > Bearers Ste and waste fuel evaporation of fossil fuels > DB Chapter 10: Africa © Bl Amenes Amer A Definitions [Taking each of the main pollutants in turn, we ...

  • Sinteza i strukturna karakterizacija mikroporoznih arsenata i fosfata

    Sabina Z. Kovač (2015-09-28)
    Predmet rada i istraživanja ove doktorske disertacije su sinteza i strukturnekarakteristike novih kristalnih arsenata i fosfata koji sadrže Mg, K, Ca, Mn, Fe, Co, Ni,Cu, Zn, Sr, Ba i druge katjone. U strukturama arsenata i fosfata, AsO4- i PO4-tetraedrinajčešće se vezuju sa tetraedarski ili oktaedarski koordinisanim katjonima prelaznihmetala formirajući otvorene strukture (slojeve ili 3D mreže) sa širokim opsegomrazličitih topologija. U šupljinama ili porama u obliku povezanih ili nepovezanihkanala, tunela, kaveza i međuslojnog prostora mogu se ugraditi različiti vanmrežni joni(obično ...
    hidrotermalna sinteza, mikroporozna jedinjenja, arsenati, fosfati,rendgenska strukturna analiza
    ... Karanović, Lj. (2008) J. Solid State Chem. 181, 2889–2898. 50. Đorđević, T. and Karanović, Lj. (2010) J. Solid State Chem. 183, 2835–2844. 51. Đorđević, T., Šutović, S., Stojanović, J., Karanović, Lj. (2008) Acta Crystallogr. C64, i82–i86. 52. Effenberger, H. (1999) J. Solid State Chem. 142, 6–13 ...
    ... (2004) Solid State Sci. 6, 213–223. 164. Wills, A. S. (2009) VaList. Bond Valence Calculation and Listing. Program available from www.CCP14.ac.uk. 165. Wragg, D. S., Ouay, B. L., Beale, A. M., O’Brien, M. G., Slawin, A. M. Z., Warren, J. E., Prior, T. J., Morris, R. E. (2010) J. Solid State Chem ...
    ... Hu, N., Wei, G., Jia, H. (1994) Chem. Commun., 1171. 167. Yu, J., Xu, R., Li, J. (2000) Solid State Sci. 2, 181–192. 168. Xing, Y., Liu, Y., Shi, Z., Zhang, P., Fu, Y., Cheng, C., Pang, W. (2002) J. Solid State Chem. 163, 364–368. Sinteza i strukturna karakterizacija mikroporoznih arsenata ...

  • Nonequilibrium athermal random-field Ising model on hexagonal lattices

    Svetislav Mijatović, Dragutin Jovković, Đorđe Spasojević (2021)
    Изингов модел, хексагонална решетка

  • Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala

    Srđan B. Stanković (2016-09-11)
    Jezero Robule, formirano u podnožju rudničke raskrivke Oštreljski planir (Rudnik bakra Bor), je nastalo kao posledica rudarskih aktivnosti. Mikrobiološki diverzitet ekstremno kiselog jezera Robule ispitivan je primenom kako klasičnih mikrobioloških metoda (svetlosna mikroskopija i kultivacija na selektivnim podlogama) tako i primenom savremene metode molekularne biologije (analiza polimorfizama terminalnih restrikcionih fragmenata; T-RFLP). Takođe, ispitivan je i potencijal i efikasnost jezerske vode u biološkom luženju mineralnog koncentrata, kao i u bioluženju uzoraka stare flotacijske jalovine Rudnika bakra Bor.Na osnovu dobijenih rezultata ...
    jezero Robule, acidofilne bakterije, bioluženje, kisele rudničke vode, flotacijska jalovina
    ... Marković R., Jonović R., Avramović Lj., Bugarin M., Stevanović J. (2013) Mine waste water management in the Bor municipality in order to protect the Bor River water in Einschlag F.S.G. and Carlos L. (editors): Waste water - treatment technologies and tecent analytical developments, InTech, Rijeka ...
    ... and Sulfobacillus. Chemolithoautotrophic and heterotrophic acidophilic bacteria were also detected on selective solid media, but observed diversity was lower. Inoculation of overlay solid media containing ferrous(II)sulfate and yeast extract with soil sample of surrounding overburden resulted in ...
    ... Univerzitet u Beogradu - Tehnički fakultet u Boru, Bor 26. Dold B. (2008) Sustainability in metal mining: from exploration, over processing to mine waste management, Reviews in Environmental Science and Biotechnology 7: 275-285 27. Dong Y., Lin H., Xu X., Zhou S. (2013) Bioleaching of different copper ...

  • Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic

    Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković (2020)
    Artificial lift methods have applications in oil wells where oil production is no longer possible due to natural reservoir energy, so this necessary energy is added by introducing lift methods. In order to achieve optimum production, the selection of an artificial lift method is very important. This paper uses fuzzy logic as a mathematical and conceptual model for selection of the optimal artificial lift method. The outcome or IF-THEN rules, as the central part of the model, is based ...
    mehaničke metode, proizvodnja nafte, fazi logika, donošenje odluka, optimizacija
    ... increase corrosion, the number of artificial methods that can be used decreases in the production fluid. Parameter C2 represents solid particles. With the rise of solid particles in the production fluid, the number of artificial methods that can be used is reduced. Parameter C3 represents GOR. With ...
    ... temperature, (B4) fluid density, (B5) viscosity, and (B6) well deviation; • Production operating problem parameters (C), which are: (C1) corrosion, (C2) solid particles, (C3) gas oil ratio—GOR, (C4) paraffin, and (C5) water cut. Figure 1 shows the conceptual model of an expert system for optimized selection ...
    ... m3/day temperature 50–180 °C oil density 810.89–1014.34 kg/m3 oil viscosity 2–681 mPas well deviation 0–35 ° share of corrosive substances 0–5 % solid particle content 0–16 % GOR 10–458 m3/m3 paraffin share 0–20 % water content 0–93 % forms of energy and source 8–9 grade possibility of service ...

  • Structural dissymmetrization of optically anisotropic Grs64±1Adr36±1Sps2 grandite from Meka Presedla (Kopaonik Mt., Serbia)

    Pavle Tančić, Aleksandar Kremenović, Predrag Vulić (2019)
    In this paper, grandite core with Grs64±1Adr36±1Sps2composition was crystallographically studied. This core represents zone A of the macroscopically visiblefive A–E zones of the optically anisotropic Grs58–64 Adr36–42Sps2 grandite. The applied procedure includes the detailed analysis of the powder diffraction patterns, and the Rietveld refinements of the crystal structures in a series of 18 space groups and two mixtures, which were followed by the comparative analysis of the R-values, site occupancy factors, and the bond lengths and angles. Synthesis of all ...
    grandite, XRPD, crystal structure, structural dissymmetrization

  • 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 ...
    pyrazoloquinolinones, nanocrystals, wet media milling, fasted/fed bioavailability
    ... approach. Generally, poorly soluble substances can be characterized as brick dust or grease balls depending on the limiting factor for the solubility: solid-state or solvation process [3,5]. Brick dust substances are poorly soluble in an aqueous environment as well as in lipids and organic solvents, and ...
    ... samples were then centrifuged for 20 min at 3400× g, and supernatants were separated. The DK-I-60-3 was extracted from plasma and supernatants by solid-phase extraction using Oasis HLB cartridges (Waters Corporation, Milford, MA, USA). The cartridges were pre- Pharmaceutics 2021, 13, 1188 6 of 19 ...
    ... curve (AUC) in plasma were similar in the fasted and fed state (p = 0.998 and 0.100 for Cmax and AUC, respectively, Student t-test). In investigated solid tissues, although average values of AUC seem to be different, even two times higher in the group of fed animals, statistically the differences were ...

  • 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: ...
    nanocrystal, curcumin, top-down method, wetball milling

  • Structural characterization of traditional pottery produced from local clay, Rujište (Ražanj, Central Serbia), in an effort to preserve its geoheritage

    Maja Milošević, Biljana Đorđević, Alena Zdravković (2021)
    ... deposited from formation waters in sandstones often appear in the form of slats and tiles, while iron hydroxides are mostly present in the form of solid spheres sometimes of regular shape. The main focus of this investigation was the mineralogical analysis of the clay body used in the manufacture ...

  • Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders

    Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić (2023)
    ... influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders. For the synthesis of nanoparticles of copper-silver oxides solid solutions. with the composition Cu,,Ag,O (x=0.01-0.05), a self- propagating synthesis was applied at room temperature, during which a successful ...

  • Strategic Environmental Assessment in the Application of Preventive Protection for Wind Farm Noise—Case Study: Maestrale Ring Wind Farm

    Boško D. Josimović, Aleksandar Cvjetić, Božidar Manić (2021)
    Determining the spatial position of wind turbines is the initial and most important phase in the development of a wind farm project. In this sensitive phase, all potential problems that may arise in the later stages of project development should be prevented by means of spatial and urban planning instruments. This makes it possible to achieve maximum use of the potential of wind in a particular space and, thus, fulfil the technical and economic requirements of the project while ...
    Energija,energetski inženjering i elektroenergetska tehnologija,obnovljivi izvori energije, održivost i životna sredina,električni i elektronski inženjering,kontrola i optimizacija,inženjering
    ... environmental assess- ment process for agro-waste management planning. Spatium 2019, 42, 16–22. 11. Josimović, B.; Krunić, N.; Gajić, A.; Manić, B. Multi-criteria Evaluation in Strategic Environmental Assessment in the Creation of a Sustainable Agricultural Waste Management Plan for wineries: Case Study: ...
    ... compared to LVNI) No impact 0 No impact on the receptors (values of noise levels at the receptors are below LVNI) Spatial Dispersion of Impact Municipal O Possible impact on the whole area of the municipality Local L Possible impact on individual locations Probability of Impact 100% I Impact ...
    ... 183–189. 51. Balfors, B.; Wallström, J.; Lundberg, K.; Söderqvist, T.; Hörnberg, C.; Högström, J. Strategic environmental assessment in Swe- dish municipal planning. Trends and challenges. Environ. Impact Assess. Rev. 2018, 73, 152–163. 52. Unalan, D.; Cowell, R. Strategy, context and strategic env ...

  • Crystal structure of K3EuSi2O7

    Sabina Kovač, Predrag Dabić, Aleksandar Kremenović (2021)
    alkalni silikati elemenata retkih zemalja, kristalna struktura, sinteza metodom fluksa, rendgenska difrakcija na monokristalu
    ... Smith, H.-C. zur Loye, CrystEngComm 18 (2016) 2294 (https://doi.org/10.1039/C6CE00177G) 7. A. M. Latshaw, J. Yeon, M. D. Smith, H.-C. zur Loye, J. Solid State Chem. 235 (2016) 100 (https://doi.org/10.1016/j.jssc.2015.12.013) 8. G. Morrison, A. M. Latshaw, N. R. Spagnuolo, H.-C. Zur Loye, J. Am. Chem ...
    ... M. C. Cheng, Y. Wang, Acta Cryst. C43 (1987) 1241 (https://doi.org/10.1107/S0108270187092308) 13. I. Vidican, M. Smith, M., H.-C. zur Loye, J. Solid State Chem. 170 (2003) 203 (https://doi.org/10.1016/S0022-4596(02)00029-4) 14. J. D. Napper, R. C. Layland, M. D. Smith, H. Loye, J. Chem. Crystallogr ...