Претрага
286 items
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Kontaktni metamorfizam gornjokrednih sedimentnih stena Rudnika
Kostić N. Bojan (2021)Kontaktni metamorfizam gornjokrednih sedimentnih stena na planini Rudnik ispitivan je na uzorcima iz pet bušotina. Definisano je šest varijeteta krednih stena (protolita) koji čine dve litološke jedinice izgrađene od klastičnog, karbonatnog i klastično-karbonatnog materijala. Vulkanskom aktivnosti na Rudniku formirana su vulkanska tela koja se utiskuju duž slojevitosti sedimentnih stena, a neka ih presecaju u vidu dajkova. Starost ovog vulkanskog događaja određena je na 23.9 miliona godina. Ovaj miocenski vulkanizam doveo je do kontaktno metamorfnih promena sedimentnih stena i obrazovanja skarnova ...... Geološki Zavod SFRJ, Beograd, pp. 82 Clark, L. A. 1960: The Fe-As-S system: Phase relations and applications. Economic Geology, 55. pp.1345-1381 Connolly, JAD., Petrini, K. 2002: An automated strategy for calculation of phase diagram sections and retrieval of rock properties as a function of physical ...
... s of fluid inclusions reflected on high temperature of hydrothermal solutions, exceeding 560° C, during the garnet growth. The last hydrothermal phase was detected by homogenization temperature of fluid inclusions in quartz at 228° C. Garnets in contact metamorphic rocks from Rudnik consider gro ...
... pressure up to 800 bars were inferred. During the first stage, i.e. prograde metamorphism formed garnet and pyroxene, whereas in the second, retrograde phase epidote and chlorite derived. It should be mentioned that mineral vesuvianite has not been recorded in Rudnik before doing these researches. ...Kostić N. Bojan. Kontaktni metamorfizam gornjokrednih sedimentnih stena Rudnika, Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2021
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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... morphology of materials with diameters in the range of 10–65 ım and thickness of around a few microns. X-ray diffraction identified only one crystalline phase in the sample. The Raman scattering, measurements taken on the catalyst confirmed the result of XRPD. Degradation kinetics were monitored by ultra-fast ...
... the influence of molecular structure on the efficiency of the degradation process. 2. Results and Discussion 2.1. XRPD Only one crystalline phase Shcherbinaite, V»Os (PDF card no. 01-072-0433; orthorhom- bic Pmnm space group) could be identified in the sample, Figure 2. Refined unit cell parameter ...
... corresponding bulk value, together with the absence of ~840 cm ! mode in the spectra of the catalyst, reveals a good crystallinity of the V>»Os phase [30—32]. A broad feature at ~1020 cm !1 may be ascribed to surface VOx species on V>Os [33]. R a m a n in te ns it y 100 200 300 400 500 600 ...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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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: ...Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić. "Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals" in Review on advanced materials science, Walter de Gruyter GmbH (2020). https://doi.org/10.1515/rams-2020-0043
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Centar za hidrogeologiju karsta - 15 godina nauke i struke
... and ionic analysis of the Beljanica karst groundwater were performed in the IRCK laboratories, as well as 28 analysis of the host rock isotopic composition for the purposes of the LJ. Vasić dissertation. Poseta laboratoriji u IRCK-u 2014 god.(Guilin, Kina) Visiting laboratory in IRCK 2014 year (Guilin ...
... time. Currently, the laboratory has a large number of instruments for measuring qualitative parameters (physicochemical parameters, basic ionic composition, TOC, trace elements), but also field-portable equipment that can be used to shorten chemical analyses directly in the field, which, in addition ...
... microelement concentrations is of great importance for defining the genesis of groundwater and the geochemical processes that influenced the chemical composition of water in general. This analyzer includes a safety locker for the argon bottle needed for its operation, as well as a ventilation system. ...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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Novi model za postizanje optimalne proizvodnje na naftnom polju Amal
Elnori Elmabrouk Ali Elhaddad (2015-04-16)Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...... International Monetary Fund, Washington, DC. Deng F., Deng J., Yan W., Zhu H., Huang L., Chen Z., (2013) The influence of fine particles composition on optimal design of sand control in offshore oilfield, J Petrol Explor Prod Technol, DOI 10.1007/s13202-012-0045-7. Denney D., (2002). “Simulation ...
... Sahai G. C, Pundeer G. S., Chandra K. (1991) Designing and Selecting Wax Crystal Modifier for optimum Field Performance Based on Crude Oil Composition, SPE 22784, Paper presented at the 1991 SPE Annual Technical Conference and Exhibition, Texas, October 6-9, 1991. Solesa M., Danilović D., Zsolt ...Elnori Elmabrouk Ali Elhaddad. "Novi model za postizanje optimalne proizvodnje na naftnom polju Amal" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-04-16)
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Novi model za postizanje optimalne proizvodnje na naftnom polju Amal
Elnori Elmabrouk Ali Elhaddad (2015-04-16)Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...... International Monetary Fund, Washington, DC. Deng F., Deng J., Yan W., Zhu H., Huang L., Chen Z., (2013) The influence of fine particles composition on optimal design of sand control in offshore oilfield, J Petrol Explor Prod Technol, DOI 10.1007/s13202-012-0045-7. Denney D., (2002). “Simulation ...
... Sahai G. C, Pundeer G. S., Chandra K. (1991) Designing and Selecting Wax Crystal Modifier for optimum Field Performance Based on Crude Oil Composition, SPE 22784, Paper presented at the 1991 SPE Annual Technical Conference and Exhibition, Texas, October 6-9, 1991. Solesa M., Danilović D., Zsolt ...Elnori Elmabrouk Ali Elhaddad. "Novi model za postizanje optimalne proizvodnje na naftnom polju Amal" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-04-16)
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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 ...... (Holzer et al., 2009). During freezing, as the temperature is lowered, phase separation occurs with the formation of two regions within the sample - ice crystals and cryo-concentrated (or nano-concentrated) phase. In the latter phase, the distance between nanoparticles decreases, increasing the probability ...
... this case, if no aggregation occurred). It is possible that the observed struc- ture was formed during phase separation in the freezing step and does not affect the dynamics of the drying phase (Patel et al., 2017). As mentioned above, mannitol is rarely used as a cryoprotectant because ofits ...
... with sucrose and trehalose could be explained by a different phase separation during lyophilization in the presence of these excipients. In a study with proteins, sucrose was more efficient than trehalose during the primary drying phase. It was shown that trehalose-rich regions induced larger areas ...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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Hidrogeohemijska valorizacija esencijalnih mikroelemenata mineralnih voda Srbije
Jana S. Stojković (2013-09-25)Mineralne vode još od davnina privlače pažnju ljudi i to kako u pogledu istraživanja iproučavanja, tako i u pogledu njihovog iskorišćavanja. Naročito je važno poznavanjesadržaja mikroelemenata u njima, jer su to komponente njihovog hemijskog sastavakoje ih odvajaju od tzv. „običnih“ malomineralizovanih voda.U ovom radu proučavani su odabrani esencijalni mikroelementi (fluor, bor, litijum,kalijum, stroncijum i silicijum), u mineralnim vodama Srbije, pri čemu je analiziranopreko 130 uzoraka mineralnih voda iz različitih geoloških sredina, to jest hidrogeološkihrejona. Cilj ovog istraživanja bio je ...esencijalni mikroelementi, faktori migracije, zakonomernosti rasprostranjenja, hidrogeohemijski procesi, multivarijantna statistička analiza, mineralne vode Srbije... these microelements and their mobilization from the rocks. Besides that, hydrochemical conditions (especially chemical composition of groundwater and lithological composition of the aquifer) causing high concentrations of these elements in mineral waters of Serbia have been defined. In order ...
... Anderson, D. L., Cunningham, W. C. and Lindstrom, T. R. (1994) “Concentrations and intakes of H, B, S, K, Na, Cl and NaCl in foods.” Journal of food composition and analysis, Pp. 59-82. 4. Anderson, R. D. and Rubin, H. (1956) “Statistical inference in factor analysis.” Proceedings of the Third Berkeley ...Jana S. Stojković. "Hidrogeohemijska valorizacija esencijalnih mikroelemenata mineralnih voda Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-09-25)
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Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal
Sanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović (2018)glukoza, fruktoza, аktivni ugalj, hidrotermalni tretman, aktivacija hidroksida, teški metali, metilen plavo... [46]. Collected samples were kept in the capped container and left at room temperature in order to separate liquid from the solid phase. After few days, the liquid phase was decanted and filtered through qualitative filter paper in order to remove large particles and impurities. The adsorption experiments ...
... samples were high yield (~14%), content of organic carbon (63–74%), porosity and specific surface area (SBET ~700–1360 m2/g), a low degree of the crystal phase, indications that potassium ions may be included in heavy metals removal, good removal of the heavy metal ions (~47–59 mg/g for Pb2+, ~21–27 mg/g for ...
... were high yield (~14%), content of organic carbon (63-74%), porosity and specific surface area (Sper ~700-1360 m?/ g), a low degree of the crystal phase, indications that potassium ions may be included in heavy metals removal, good removal of the heavy metal ions (~47-59 mg/g for Pb**, ~21-27 mg/g for ...Sanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović . "Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal" in Minerals, MDPI (2018)
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Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia
... Sci, Mac- edonian Academy of Sciences and Arts 39:51—68. https://doi. org/10.20903/csnmbs.masa.2018.39.1.119 Bolt GH, Bruggenwert MGM (1976) Composition of the Soil. Soil Chemistry: A Basic Elements 1—12. https://doi.org/10.1016/ s0166-2481(08)70630-5 Breiman L (2001) Random Forests. Mach Learn ...Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski. "Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia" in Earth Science Informatics, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s12145-024-01243-4
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A Data Driven Approach for Raw Material Terminology
Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja (2021)The research presented in this paper aims at creating a bilingual (sr-en), easily searchable, hypertext, born-digital, corpus-based terminological database of raw material terminology for dictionary production. The approach is based on linking dictionaries related to the raw material domain, both digitally born and printed, into a lexicon structure, aligning terminology from different dictionaries as much as possible. This paper presents the main features of this approach, data used for compilation of the terminological database, the procedure by which it has ...sirovine, rudarstvo, terminologija, rečnik, terminološka aplikacija, mobilna aplikacija, digitizacija, leksički podaci, korpusi, otvoreni povezani podaci... (Retro)Digitisation In order to expand and enrich the available digital resources, a number of paper dic- tionaries were digitised in the preparatory phase. After scanning, OCR and transformation to MS Word, with preservation of formats (bold, italic), manual correction was performed. The Word documents ...
... pair contain a candidate term from the raw material domain. More details about options and the procedure are available in [40]. The output of this phase contained 8202 Serbian-English pairs as term candidates whose English part was confirmed and 3605 where both language parts were confirmed. In the first ...
... dictionaries and Serbian part of bilingual dictionaries. Translation equivalents are retrieved from bilingual dictionaries and within the word alignment phase (more in Section 4.2), keeping again information about the original dictionary source. Extracted terms were also subject to a labeling procedure, which ...Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja. "A Data Driven Approach for Raw Material Terminology" in Applied Sciences, MDPI AG (2021). https://doi.org/10.3390/app11072892
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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)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. "Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise" in Science Advances, American Association for the Advancement of Science (AAAS) (2023). https://doi.org/10.1126/sciadv.adi2698
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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 ...... organic acid extraction. Jowrma! of u Membrane Science, 165(1), p.59-73. [205] James, M., Cassidy, D., Goossens, D.J. and Withers, R.L., 2004. The phase diagram and tetragonal superstructures of the rare carth cobaltate phases LniI— xSrxCoOa—5 (Ln= La*, Pr*, Nd*, Sm*, Gd*, Y*, Ho*, Dy*, Er*, Tm** ...
... ions and electrons in solids. John Wiley & Sons. [29] Schulten, H.R. and Leinweber, P., 2000. New insights into organic-mineral particles: composition, properties and models of molecular structure. Biology and Fertility of Soils, 30, p.399-432. [30] Nash, K.L., 1993. A review of the basic chemistry ...
... Poland to evaluate rare earth element content. Fuel, 779, pp.236-239. [165] Matjie, R.H., Li, Z., Ward, C.R. and French, D., 2008. Chemical composition of glass and crystalline phases in coarse coal gasification ash. Fuel, 87(6), p.857-869. [166] Panda, L. and Dash, S., 2020. Characterization ...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
... Figure 5. Illustrative part of gantographic display of the initial phase of the project to improve the environmental protection system in mining and energy complexes. Figure 6. Illustrative part of network diagram of the initial phase of the project to improve the environmental protection system in ...
... Figure 5. Illustrative part of gantographic display of the initial phase of the project to improve the environmental protection system in mining and energy complexes. Figure 6. Illustrative part of network diagram of the initial phase of the project to improve the environmental protection system in ...
... the initial phase of the project to improve the environmental protection system in mining and energy complexes. Figure 8. Illustrative part of the network plan of the branched project structure to improve the environmental protection system in mining and energy complexes. The final phase of the management ...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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Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone
The Vardar Zone is a product of the Triassic-Jurassic opening of the Neotethys, Jurassic obduction, Late Cretaceous/Paleogene consumption of the oceanic crust and continental collision. During the last process, the Eastern Vardar Zone was thrust over the Central and eventually both onto the Western Vardar Zone. The present paleomagnetic and structural study provided new results from the first two zones in the Belgrade area. The younger set of data, together with published ones from the third zone, provide firm ...Emő Márton, Marinko Toljić, Vesna Cvetkov. "Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone" in Journal of Geodynamics, Elsevier BV (2022). https://doi.org/10.1016/j.jog.2021.101880
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Hidrogeoekološki uslovi eksploatacije kamenih i mrkih ugljeva Srbije
Branko R. Miladinović (2016-04-27)Ugalj predstavlja energent na čijoj osnovi se razvija privreda celog sveta.Zato mu se pridaje velika pažnja u eksploataciji i preradi, bez obzira na mnogeštetne uticaje na životnu sredinu, a posebno na efekat staklene bašte koji sestvara emisijom zagađujućih materija u atmosferu radom termoelektrana naugalj.U Srbiji, resurs koji se danas u najvećoj meri koristi u proizvodnjielektrične energije je ugalj i on učestvuje u proseku sa 70 %. U strukturi ukupneproizvodnje ugljeva, dominiraju lignitski ugljevi sa učešćem od 98 %, a ...Srbija, kameni i mrki ugalj, podzemna eksploatacija, preradauglja, rudničke vode, hemijski sastav, emisija zagađujućih materija, životnasredina... based on the chemical composition: a) mine water with total dissolved solids (TDS) of M<1000 mg/L, which occur in coal seam roofs and floors, and b) mine water with a TDS of M>1000 mg/L, which occur within the coal seams themselves. Within coal seams, the chemical composition of groundwater me ...
... Zhaoguang Y., Soo B.K., 2003: Inductively coupled plasma mass spectrometry study of the retention behavior of arsenic species on various solid phase extraction cartridges and its application in arsenic speciation, Spectrochimica Acta Part B 58, 1335-1349. 97. Yushi M., Sheng H., Yang F., 2008: ...
... Consequently, the objective of the present doctoral thesis is based on defining the conditions for the inflow of mine water and its chemical composition, relative to Serbia’s overall water resources, as well as the environmental impacts of coal extraction, mine dewatering, and coal processing ...Branko R. Miladinović. "Hidrogeoekološki uslovi eksploatacije kamenih i mrkih ugljeva Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-04-27)
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Старење бунара у алувијалним срединама различитог степена оксичности
Brankica Majkić (2013-09-27)Старење бунара настаје као последица процеса корозије и колмирања. Процесекорозије могуће је спречити уградњом филтерских конструкција од материјалаотпорних на корозију. Колмирање може да настане без обзира на врсту материјалаод кога се праве бунарске конструкције, а процесом може бити захваћенаприфилтарска зона па и зона саме водоносне средине. Из тог разлога тезa јеусмеренa на процесе који доводе до колмирања бунара и последицe опадањaкапацитета водозахватних објеката. Полазна хипотеза је да бунари стареразличитом брзином у срединама различитог степена оксичности. Хидрохемијскеи микробиолошке карактеристике подземних ...старење бунара, алувијалне издани, степен оксичности средине,колмирање, бунарски талог, локални хидраулички губитак, дозвољене улазнебрзине... age at varying rates in sediments of different oxic conditions. Hydrochemical and microbiological characteristics of the groundwater and the composition of the sediments comprising the aquifer matrix affect the rate of incrustation inside the wells, as does the operating mode of the wells. Drinking ...
... докторска дисертација 290 91. Mortimer, R.J.G., Coleman, M.L., Rae J.E., (1997) : Effect of bacteria on the elemental composition of early diagenetic siderite: implications for palaeoenvironmental interpretations, Sedimentology 44:759–765 92. McMahon, P.B and F.H Chapelle ...
... pp-3169-3175. 100. Posfai M., Buseck P. R., Bazylinski D. A. and R. B. Frankel (1998): Iron sulfides from magnetotactic bacteria: Structure, composition and transitions. Am. Mineral. 83, 1469–1481 Бранкица Мајкић докторска д ...Brankica Majkić. "Старење бунара у алувијалним срединама различитог степена оксичности" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-09-27)
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Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija
Srđan D. Kostić (2013-11-04)U ovoj disertaciji, cilj istraživanja bio je određivanje dinamičkih svojstava potresaizazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija.Analiza potresa izvedena je sa dva aspekta – u prvom delu istraživanja izučavane suvremenske serije oscilovanja tla za vreme potresa, a u drugom delu vršena je analizastabilnosti fenomenološkog Baridž-Knopof modela bloka sa oprugom. Vremenske serijeoscilovanja tla proučavane su primenom postupka analize surogat podataka, kao ikorišćenjem metoda analize nelinearnih vremenskih serija (primena teoreme orazvijanju skalarne vremenske serije). Analiza vremenskih serija izvedena je ...potres, naponsko stanje, podzemne prostorije, bifurkacije, vremenskaserija, deterministički haos, stohastičnost, perturbacije, vremensko kašnjenje, jačina trenja... of fracture, friction and earthquake, arxiv:112.0148v2, 1-52. 88. Kennel, M., Brown, R., Abarbanel, H. 1992. Determining embedding dimension for phase-space reconstruction using a geometrical construction, Physical Review A 45, 3403-3411. 89. Kijko, A., Funk, C.W., Brink, A.v.Z. 1993. Identification ...
... along the fault. Secondly, frictional strength parameter c describes the inherent properties of the fault zone – its width, depth, mineral composition, etc. Thirdly, periodic perturbation of parameter values mimics the mining effect (mining equipment vibrations, blasting effects, etc.). The ...
... released in a form of seismic waves. These waves travel through the Earth’s crust, and dissipate the energy due to complex tectonics, geological composition, various morphological structures, distortion of seismic waves, etc. The performed research represents solid ground for the further exploration ...Srđan D. Kostić. "Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-11-04)
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Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija
Srđan D. Kostić (2013-11-04)U ovoj disertaciji, cilj istraživanja bio je određivanje dinamičkih svojstava potresaizazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija.Analiza potresa izvedena je sa dva aspekta – u prvom delu istraživanja izučavane suvremenske serije oscilovanja tla za vreme potresa, a u drugom delu vršena je analizastabilnosti fenomenološkog Baridž-Knopof modela bloka sa oprugom. Vremenske serijeoscilovanja tla proučavane su primenom postupka analize surogat podataka, kao ikorišćenjem metoda analize nelinearnih vremenskih serija (primena teoreme orazvijanju skalarne vremenske serije). Analiza vremenskih serija izvedena je ...potres, naponsko stanje, podzemne prostorije, bifurkacije, vremenskaserija, deterministički haos, stohastičnost, perturbacije, vremensko kašnjenje, jačina trenja... of fracture, friction and earthquake, arxiv:112.0148v2, 1-52. 88. Kennel, M., Brown, R., Abarbanel, H. 1992. Determining embedding dimension for phase-space reconstruction using a geometrical construction, Physical Review A 45, 3403-3411. 89. Kijko, A., Funk, C.W., Brink, A.v.Z. 1993. Identification ...
... along the fault. Secondly, frictional strength parameter c describes the inherent properties of the fault zone – its width, depth, mineral composition, etc. Thirdly, periodic perturbation of parameter values mimics the mining effect (mining equipment vibrations, blasting effects, etc.). The ...
... released in a form of seismic waves. These waves travel through the Earth’s crust, and dissipate the energy due to complex tectonics, geological composition, various morphological structures, distortion of seismic waves, etc. The performed research represents solid ground for the further exploration ...Srđan D. Kostić. "Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-11-04)
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Примена нумеричких метода у моделовању тецишта са освртом на различите реолошке услове
Јелка Крушић (2023)Тецишта су комплексне појаве нестабилности које захтјевају истраживања и испитивањакоја до сада нису рађена код нас у области геотехнике. По механизму, начину активирањаи понашању покренутог материјала се знатно разликују од клизишта. Циљ оведисертације је била примјена нумеричких модела пропагације тецишта на примјеру двијепојаве које су се десиле у Србији као посљедица дјеловања циклона Тамара. Детаљноистраживање тецишта подразумијева теренско картирање, теренска истраживања илабораторијска испитивања одабраних узорака са терена. Од теренских истраживања напримјеру тецишта Селанац урађена су геофизичка истраживања Електричнетомографије док ...тециште, нумерички модели пропагације, циклон Тамара, геофизичка истраживања, лабораторијска испитивања, Селанац, Лева река, RAMMS, SPH geoflow, реолошки моделЈелка Крушић. Примена нумеричких метода у моделовању тецишта са освртом на различите реолошке услове, Београд : Универзитет у Београду, Рударско - геолошки факултет, 2023