Претрага
2255 items
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Regulacija nivoa tečne faze u vertikalnim separatorima
Katarina Šoštarić (2024)Ovaj diplomski rad bavi se regulacijom nivoa tečne faze u vertikalnim separatorima u industriji nafte i gasa. U radu su istraženi različiti metodi merenja nivoa, uključujući plovke, ultrazvučne i radarske senzore. Radarski senzori su se pokazali kao najefikasniji u teškim radnim uslovima, zahvaljujući njihovoj visokoj preciznosti i pouzdanosti. Rad uključuje teoretski pregled metoda merenja nivoa, detaljno poređenje prednosti i nedostataka različitih senzora, kao i studiju slučaja implementacije radarskog senzora u vertikalnom separatoru. Analiza rezultata i preporuke za buduća istraživanja ...... paper includes a theoretical overview of level measurement methods, a detailed comparison of the advantages and disadvantages of different sensors, as well as a case study of the implementation of a radar sensor in a vertical separator. An analysis of the results and recommendations for future research ...
... separators in the oil and gas industry. Different methods of level measurement were investigated in the paper, including floats, ultrasonic and radar sensors. Radar sensors have proven to be the most effective in difficult working conditions, thanks to their high precision and reliability. The paper ...
... research and improvement are also presented. Keywords: Level measurement, Vertical separator, Radar sensors, Ultrasonic sensors, Oil and gas industry 1. UVOD Diplomski rad rađen na temu “Regulacija nivoa tečne faze u vertikalnim separatorima” sastoji se iz opšteg i specijalnog dela. Merenje ...Katarina Šoštarić. Regulacija nivoa tečne faze u vertikalnim separatorima, 2024
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Sastav i teksture minerala FeO-Fe2O3-TiO2 sistema u vulkanskim stenama i porfirskim ležištima bakra Borske metalogenetske zone
Aleksandar Luković (2021)Proces obrazovanja minerala iz sistema FeO-Fe2O3-TiO2 u uzorcima vulkanskih stena i porfirskih orudnjenja borske zone prikazan kroz pojavu magnetita/hematita i njihovih alteracija. Minerali ove zone su ispitivani optičkim metodama (odbijena i propuštena svetlost), SEM-EDS/BSD, XRPD, LA-ICP-MS metodama. Rezultati ispitivanja su, pored glavnih Fe – Ti oksida, otkrili prisustvo ferijskog ilmenita u hornblenda andezitima I vulkanske faze kao i magnetita sa većim koncetracija Cr u zoni zlotske magnetne anomalije. Ispitivanje uzoraka iz bušotina porfirskih sistema borske zone otkriva postojanje nekoliko ...... Lindsley, D.H., & Prewitt, C.T., (1984): Crystal stucture and cation distribution in titanomagnetites (Fe3-xTixO4). American Mineralogist, 69, 754-770. Whalen, J.B., & Chappell, B .W., (1988): Opaque mineralogy and mafic mineral chemistry of I- and S-type granites of the Lachlan Fold belt, southeast Australia ...
... (1980): The ore minerals and their intergrowths. Pergamon press (2nd ed.), 1205 str, u dva toma. (Prvo izdanje, 1969). 95 Ramdohr, P., (1975): Die Erzmineralien und ihre Verwachsungen. Akademie-Verlag, Berlin. Ray, G.E., Webster, I.C.L., (2007): Geology and chemistry of the low Ti magnetite-bearing ...
... C., (1951): Neutron Scattering and Polarization by Ferromagnetic Materials. Physical Review, 84(5), 912–921. Sievwright, R. H., Wilkinson, J. J., O’Neill, H. S. C., & Berry, A. J., (2017): Thermodynamic controls on element partitioning between titanomagnetite and andesitic–dacitic silicate melts ...Aleksandar Luković. Sastav i teksture minerala FeO-Fe2O3-TiO2 sistema u vulkanskim stenama i porfirskim ležištima bakra Borske metalogenetske zone, Beograd : [A. Luković], 2021
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Mesozoic carbonate rocks in Serbia used as dimension stone
Vesna Matović, Tijana Vojnović Ćalić (2016)The building industry in Serbia uses, to a great extent, imported natural stone for architectural purposes. The significance of local deposits, particularly limestones, is not adequately perceived despite the country’s abundance of these valuable resources. Therefore, this study focuses on Serbia’s Mesozoic carbonate rocks, specifically on the deposits of four selected quarries: Klisura, Skrzut, Struganik, and Tisnica. The quality and prospects of the application of these limestones has not yet been the subject of a detailed, comprehensive investigation. Therefore, ...... natural stone slabs for architectural cladding and paving for exterior and interior use. With the actual national standards for natural stone products, designers and investors have lost the usability reference in evaluating stone quality. The theoretical contribution of previous studies delivers ...
... as the titrant. To determine the quality of the selected carbonate rocks, the physical and mechanical properties (bulk and apparent density, porosity, water absorption, frost resistance, com- pressive strength, and abrasive resistance) were examined for 52 collected samples. The laboratory tests ...
... 120 16 100 14 80 ı_ d 60 12 KI TS sT SK KI TS sT SK Fig. 4 Boxplot diagrams of physical and mechanical properties of limestones: a bulk density (ZSP) and real density (ZBP); b porosity (P) and water absorption (Uv); c compressive strength-dry, water rudstone). They also have a low porosity ...Vesna Matović, Tijana Vojnović Ćalić. "Mesozoic carbonate rocks in Serbia used as dimension stone" in Bulletin of Engineering Geology and the Environment, Springer Science and Business Media LLC (2016). https://doi.org/10.1007/s10064-015-0722-0
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An arid phase in the Internal Dinarides during the early to middle Miocene: Inferences from Mg-clays in the Pranjani Basin (Serbia)
N. Andrić-Tomašević, V. Simić, O. Mandic, D. Životić, M. Suárez, E. García-Romero. "An arid phase in the Internal Dinarides during the early to middle Miocene: Inferences from Mg-clays in the Pranjani Basin (Serbia)" in Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier BV (2020). https://doi.org/10.1016/j.palaeo.2020.110145
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Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics
Maja Milošević, Predrag Dabić, Sabina Kovač, Lazar Kaluđerović, Mihovil Logar. "Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics" in Clay Minerals, Mineralogical Society (2019). https://doi.org/10.1180/clm.2019.49
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Old or New, We Repair, Adjust and Alter (Texts)
Cvetana Krstev, Ranka Stanković (2020)U ovom radu predstavljamo kako se e-rečnici i kaskade transduktora konačnih stanja implementirani u alatu Unitex mogu koristiti za rešavanje tri problema transformacije teksta: ispravljanje tekstova nakon OCR-a, vraćanje dijakritičkih znakova i prebacivanje između različitih jezičkih varijanti.ispravka teksta, OCR greške, restauracija dijakritika , jezičke varijante, elektronski rečnik, transduktori konačnih stanja... entities in texts”. Theoretical Computer Science Vol. 313, no. 1 (2004): 93–104 Henton, Caroline G. “Automated transformation from American English to British English”, 2004, uS Patent 6,738,738 Jaćimović, Jelena. “Textometric methods and the TXM platform for cor- pus analysis and visual presentation” ...
... confused, for instance letters ‘п’, ‘и’, ‘н’, letters ‘с’ and ‘е’, letters ‘с’ and ‘о’ (but not ‘е’ and ‘о’); – A group of letters can be confused for one letter or another group of letters, e.g. two letters ‘га’ and one letter ‘ш’; two letters ‘шп’ and two letters ‘иш’; – Letters can be confused for digits ...
... Latin alphabet that can be accommo- dated by ASCII character set, and affects five letters: š, d, č, ć and ž. As a result, some letters or letter groups become ambiguous: – c – can stand for č and ć (and c); – z – can stand for ž (and z ); 5 The example text is from the novel by Lazar Komarčić ...Cvetana Krstev, Ranka Stanković. "Old or New, We Repair, Adjust and Alter (Texts)" in Infotheca, Faculty of Philology, University of Belgrade (2020). https://doi.org/10.18485/infotheca.2019.19.2.3
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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 ...... Montero L. A., (1998): Theoretical study of the physical adsorption of aspirin on natural clinoptilolite. Microporous and Mesoporous Materials 23(5-6), 247-252. Langella, A., Cappelletti, P., de’ Gennaro R., (2001): Zeolites in Closed Hydrologic Systems. Reviews in Mineralogy and Geochemistry, 45, 1 ...
... П-838/00. Tomašević-Čanović M., Stanić T., Živanović A., Lemić J., (2004), 7th Intern. Conf. on Fundam. and Appl. Aspects of Physical Chemistry, Beograd, Removal of arsenate by cationic surfactant and iron hydroxide-loaded natural clinoptilolite, Vol. II, 2004, 751-753. Farkaš A., Cerjan-StefanovićŠ ...
... MatijasevićS., BrankovićA., TodorovićM., (2007): Mineralogical, Chemical, Physical, and Crystallographic Characterization of Analcime Tuff from Megare Deposit, Bosnia and Herzegovina“,39 th International October Conferenceon Mining and Metallurgy, SokoBanja, 422-426. 164 Stojić V., Gvozdić D ...Vladan Kašić. "Минерагенија зеолитских туфова Србије" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-02-05)
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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
... algorithms RF and KNN with various data. In this study, both RF and KNN were used to combine satellite multispectral data with geo- physical airborne and terrestrial data, as well as the distance to fault map, as features. Incorporating these data, particu- larly geophysical data (airborne and terrestrial) ...
... geological and geo- physical data, and this was the primary reason for using this algorithm to predict ophiolite. Tuning and validation are essential components of all ML -based models, including the RF algorithm. According to previous research (Breiman 2001; Catani et al. 2013; Harris and Grunsky ...
... A Brief Synthesis Of Geology And Geochemical Data. Contrib Sec Nat Math Biotech 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 ...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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Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit
... Lutovac S,. (2005): Technique of Blasting and Eartquakes, Faculty of Mining and Geology, Belgrade, pp. 199. [3] Simeunović D,.(1985): Mathematics, Faculty of Mining and Geology – Mining Department, Belgrade pp. 102- 103. [4] Ivanović B., (1973): Theoretical Statistics, Naučna knjiga, Belgrade, ...
... influence the process of exploration and exploitation, were noted in the deposit. Only after blasting, blocks of rocks 0.50 m3 occur, which could be attributed to the effect of small faults and carstified cracks in the de- posit. By examination the physical and me- chanical properties of the working ...
... 80 m, the direction of propagation is NE-SW and a slope of about 42º towards the southwest. These rocks, in engineering and geological terms, belong to a group of associated rocks, which are cracked and carstified [7]. During previous exploitation and exploitation works, no significant burst d ...Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić. "Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit" in Mining and Metallurgy Engineering Bor, Bor : Mining and Metallurgy Institute Bor (2015). https://doi.org/10.5937/MMEB1503053L
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Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels
Irina Zahirovic, Dušan Danilović, Milica Šuput Vranjin, Miloš Tripković. "Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels" in SPE Journal (2023)
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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 ...... 18. Baur, W. H. and Fischer, R. X. (2002) ”Zeolite-Type Crystal Structures and their Chemistry”, Zeolite Structure Codes DAC to LOV. Subvolume C in Landolt- Börnstein, Numerical Data and Functional Relationships in Science and Technology, New Series, Group IV: Physical Chemistry, Volume 14, M ...
... J. and Parshley J. (2001) ”Arsenic cycling in the mining environment. Characterization of waste, chemistry, and treatment and disposal”, proceedings and summary report on U.S. EPA workshop on managing arsenic risks to the environment, May 1–3, Denver, Colorado, USA. 28. Brese, N. E. and O’Keeffe ...
... (2009) ”Arsenic: Environmental Chemistry, Health Threats and Waste Treatment”, John Wiley and Sons, The Atrium, Southern Gate, Chichester, West Sussex, PO19 8SQ, United Kingdom. 75. Hennig, T. J. and Jacobs, H. (1992) Z. Anorg. Allg. Chem. 616, 71–78. 76. Hughes, J. M. and Rakovan, J. (2002) The crystal ...Sabina Z. Kovač. "Sinteza i strukturna karakterizacija mikroporoznih arsenata i fosfata" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-09-28)
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Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings
... Majdanpek open pit we performed experimental investigations on copper ore [17]. The basic physical and mechanical properties of the rock mass were determined on samples in the laboratory. By examining the physical and mechanical properties of the work environment, the following values were obtained: • ...
... Serbia, and belongs to Kolubara District. The limestone deposit Nepričava consists of rock masses of sedimentary origin, not entirely homogeneous in composition. Limestones are the most important lithological members from both economic aspect and aspect of mining exploitation technology. Physical and ...
... Engineering 24; Elsevier: Amsterdam, The Netherlands, 2004; pp. 887–892. 3. Sambuelli, L. Theoretical Derivation of a Peak Particle Velocity–Distance Law for the Prediction of Vibrations from Blasting, Rock Mechanics and Rock Engineering; Springer: New York, NY, USA; London, UK, 2009; Volume 42, pp. 547–556 ...Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić. "Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings" in Minerals, Basel : MDPI AG, Basel, Switzerland (2018). https://doi.org/10.3390/min8020070
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Modeliranje tehnoloških procesa u rudarstvu u uslovima nedovoljnosti podataka primenom teorije grubih skupova
Zoran M. Štirbanović (2015-07-01)Rudarstvo, a u okviru njega i priprema mineralnih sirovina, se odlikuje složenošću tehnoloških procesa što je posledica velikog broja uticajnih parametara. Samim tim je potrebno biti veoma obazriv prilikom donošenja odluka u oblasti rudarstva. U cilju što efikasnijeg funkcionisanja procesa, moguće je primeniti različite metode koje služe za pojednostavljenje procesa odlučivanja. Jedna od takvih metoda jeste i teorija grubih skupova. Ona predstavlja relativno novu matematičku teoriju koja je pogodna za razumevanje nepreciznih i nepotpunih podataka kao i za otkrivanje ...rudarstvo, priprema mineralnih sirovina, teorija grubih skupova, višekriterijumsko odlučivanje, flotacijsko jalovište, flotacijski kolektor, flotaciona mašina... Cercone, Integrating rough set theory and medical applications, Applied Mathematics Letters 21, 2008, pp. 400–403. 27. P. Pattaraintakorn, N. Cercone, A foundation of rough sets theoretical and computational hybrid intelligent system for survival analysis, Computers and Mathematics with Applications ...
... on Rough Sets and Soft Computing in Intelligent Agent and Web Technologies, Compiegne, France, September 19, 2005, pp. 49–55. 43. M. Yanga, F. I. Khana, R. Sadiqb, P. Amyotte, A rough set-based game theoretical approach for environmental decision-making: A case of offshore oil and gas operations ...
... Mare–a pilot study of magnetic screening, Physics and Chemistry of the Earth, Vol.27, 2002, pp. 1371–1376. 82. N. Eriksson, P. Adamek, The tailings pond failure at the Aznalcóllar mine, Spain, Environmental Issues and Management of Waste in Energy and Mineral Production, Book, Netherlands, 2000, ...Zoran M. Štirbanović. "Modeliranje tehnoloških procesa u rudarstvu u uslovima nedovoljnosti podataka primenom teorije grubih skupova" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-07-01)
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Open Educational Resources in Serbia
... Belgrade (Faculty of Mathematics, Faculty of Chemistry, Faculty of Physics, Faculty of Philosophy, University Library "Svetozar Marković" - Department of Scientific Information, University Computer Center), University of Niš (Faculty of Natural Sciences and Mathematics, Teacher's College, University ...
... projects and enthusiastic teachers and students gives an excellent base for further development of OER and their effect on teaching and learning process. National community includes educational and industry institutions and also users which collaborate in order to improve OER development and sharing ...
... is based, in Item 5 stipulates “openness towards general public and all citizens” and in Item 8 “harmonization with the European system of higher education and enhancement of academic mobility of teaching and non- teaching staff and students”. Finally, Article 32 stipulates that the “competent Ministry ...Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević. "Open Educational Resources in Serbia" in Current State of Open Educational Resources in the “Belt and Road” Countries, Springer Singapore (2020). https://doi.org/10.1007/978-981-15-3040-1_10
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Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations
The Vršac Mts. in NE Serbia represent the key area to investigate structural relations between the Northern Serbo-Macedonian Subunit and Supragetic Unit of the Dacia Mega-Unit. The geodynamic events during the Variscan orogeny in the Late Paleozoic colligated the two units and led to their metamorphic differentiation. The Late Cretaceous extension exhumed the medium-grade Serbo-Macedonian metamorphic rocks and structurally juxtaposed them against the low-grade metamorphosed basement of the Supragetic Unit along an E-dipping shear zone, which outcrops in the ...severna srpsko-makedonska subjedinica, supragetikum, kinematska analiza, multifazna ekstenzionalna deformacija... Serbian, with English and Russian Summaries). Federal Geological Institute, Belgrade, 1–47. Willingshofer E., Neubauer F. & Cloetingh S. 1999: The significance of Gosau-type basins for the late cretaceous tectonic history of the Alpine-Carpathian belt. Physics and Chemistry of the Earth, Part A: ...
... direction/dip and stretching lineation trend/plunge taken in the Serbo-Macedonian and Supragetic Unit and at their contact (i.e., measurements taken in the tens of metres wide zone at the contact between the two tectonic units) were separately analysed. By combining map data and our field measurements ...
... Serbo-Macedonian Massif and Supragetic units. Sampling site V2. Parallel-polarized lights in c and cross-polarized lights in d and e. f — Top-NE normal sense of shear in the Supragetic unit in cross-polarized lights. Sampling site V1. 402 STOJADINOVIC, KRSTEKANIĆ, KOSTIĆ, RUŽIĆ and LUKOVIĆ GEOLOGICA ...Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić, Marija Ružić, Aleksa Luković . "Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2021). https://doi.org/https://doi.org/10.31577/GeolCarp.72.5.3
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Towards Automatic Definition Extraction for Serbian
U radu su prikazani preliminarni rezultati automatske ekstrakcije kandidata za definicije rečnika iz nestrukturiranih tekstova na srpskom jeziku u cilju ubrzanja razvoja rečnika. Definicije u rečniku Srpske akademije nauka i umetnosti (SANU) korišćene su za modelovanje različitih tipova definicija (opisnih, gramatičkih, referentnih i sinonimskih) koje imaju različite sintaksičke i leksičke karakteristike. Korpus istraživanja sastoji se od 61.213 definicija imenica, koje su analizirane korišćenjem morfoloških e-rečnika i lokalnih gramatika implementiranih kao pretvarači konačnih stanja u paketu za obradu korpusa otvorenog ...... optical character recognition errors, foreign names and abbreviations (Facebook, WWW, HTML, SMS, RNA, ATR, HIV), as well as a number of words belonging to domain-specific terminology, such as: biology - eukariote (eukaryotes), citoplazma (cytoplasm), chemistry - acetilhlorin (acetylchlorine), organele (o ...
... dictionaries and previous research into Serbian (Krstev et al. 2015). 3 Analysis and Recognition of Definitions in the SASA Dictionary The first step in our research was a thorough analysis of various lexical and syntactic features of definitions in the Serbian Academy of Sciences and Arts (SASA) ...
... Krstev 2012). Finite state transducers are visualized by graphs for easier development and use. A local grammar and its corresponding graph that models (and recognizes) definitions of nouns that represent attributes and/or state is given in Figure 1. Below the graph, six definitions are listed that are ...Ranka Stanković, Cvetana Krstev, Rada Stijović, Mirjana Gočanin, Mihailo Škorić. "Towards Automatic Definition Extraction for Serbian" in Proceedings of the XIX EURALEX Congress of the European Assocition for Lexicography: Lexicography for Inclusion (Volume 2). 7-9 September (virtual), Democritus University of Thrace (2021)
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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... басена, Задужбина Андрејевић, п.92 126. Stumm, W. and J.J. Morgan (1996): Aquatic Chemistry, Chemical Equilibria and Rates in Natural Waters, 3rd ed. John Wiley & Sons, Inc., New York, 1022p. 127. Stuyfzand PJ (1993) Hydrochemistry and hydrology of the coastal dune area of the Western Netherlands ...
... Y. and H.W. Pepenguth (2000): Kinetic modeling of microbial-driven redox chemistry of radionuclides in subsurface environments: coupling transport, microbial and geochemistry www.osti.gov/bridge/servlets/purl/755470-3PElV2/.../755470.pdf 176. Wastal J. (2000): Geochemical equilibrium and int ...
... Standard Practices for Sampling Water-Formed Deposits, USA 181. International Union of Pure and Applied Chemistry (1993): Glossary for chemists of terms used in toxicology: Pure and Applied Chemistry, v. 65, no. 9, p. 2003-2122. 182. National Research Council (1994): Alternatives for ground ...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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Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)
Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović. "Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)" in Carbonates and Evaporites, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s13146-019-00548-6
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Asbestos-Based Pottery from Corsica: The First Fiber-Reinforced Ceramic Matrix Composite
Asbestos-containing pottery shards collected in the northeast of Corsica (Cap Corse) and dating from the 19th century, or earlier, have been analyzed by SEM-EDS, XRPD, FTIR and Raman microspectroscopy. Blue (crocidolite) and white (chrysotile) asbestos fiber bundles are observed in cross-sections. Most of the asbestos is partly or totally dehydroxylated, and some transformation to forsterite is observed to occur, indicative of a firing above 800 C. Examination of freshly fractured pieces shows a nonbrittle fracture with fiber pull-out, consistent with ...... refinements of tremolite at 140 and 295 K: Crystal chemistry and petrologic implications. Am. Mineral. 1996, 81, 1117–1125. [CrossRef] Gatta, D.G.; Merlini, M.; Valdrč, G.; Liermann, H.-P.; Nenert, G.; Rothkirch, A.; Kahlenberg, V.; Pavese, A. On the crystal structure and compressional behavior of talc: ...
... How to conciliate antagonist physical and chemical requirements. Ann. Chim. Sci. Materiaux 2005, 30, 673–688. [CrossRef] Hulthen, B. On ceramic ware in northern scandinavia during the neolithic, bronze, and early iron Age: A ceramic-ecological study. In Archaeology and Environment Series (e-book) ...
... ine are found in samples a, b and d, while albite is found only in samples a and b. Crocidolite is found in samples b and d, while tremolite is found in samples b and c. Diopside and orthopyroxene are found in samples b and c, while talc is found in samples c and d. Minor abundant mineral phases ...Philippe Colomban, Aleksandar Kremenović. "Asbestos-Based Pottery from Corsica: The First Fiber-Reinforced Ceramic Matrix Composite" in Materials, MDPI AG (2020). https://doi.org/10.3390/ma13163597
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Valorization of non-balanced coal reserves in Serbia for underground coal gasification
David Petrović, Lazar Kričak, Milanka Negovanović, Stefan Milanović, Jovan Marković, Nikola Simić, Ljubisav Stamenić (2019)In the name of a better and safer energy future, it is our responsibility to focus our knowledge and activities to save on imported liquid and gas fossil fuels, as well as coal on which energy security of Serbia is based. The rationalization in the use of available energy resources certainly positively affects economy and the environment of a country. This paper indicates motivations for the application of the underground coal gasification process, as well as surface gasification for ...... coal roof and coal fioor. Coal gasification chemistry includes Gasification cavity shape seven primary reactions occurring within the with CRIP layer. The primary reaction that happens is the displacement reaction of the generated water vapor (H.O) and gas, where water vapor and carbon from ...
... the massif, unlike surface waters, have been ex- posed to significantly different physical-chemical conditions and interdependencies, where the concentration of dissolved substances in them is much more diverse and changes according to the specific rules all the time. This is especially the case ...
... can be carried out, depending on the hydrogeological conditions, with various physical barriers that constrain further dissemination. The aim of reconstruction measures is to liquidate the pollution of the aquifer and establish the natural quality of groundwater. This can be done by pulling out ...David Petrović, Lazar Kričak, Milanka Negovanović, Stefan Milanović, Jovan Marković, Nikola Simić, Ljubisav Stamenić. "Valorization of non-balanced coal reserves in Serbia for underground coal gasification" in Thermal Science (2019). https://doi.org/10.2298/TSCI190725390P