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1766 items
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Природни потенцијал минералних вода Србије - Natural potential of mineral waters in Serbia
Оливера Крунић (2021)Оливера Крунић. "Природни потенцијал минералних вода Србије - Natural potential of mineral waters in Serbia" in Рационално коришћење земљишта и вода у Србији - Sustainable Use of Land and Water in Serbia- Serbian Academy of Sciences and Arts; Scientific Conferences Volume CXCVII; Department of Chemical and Biological Sciences, Book 19, Српска академија наука и уметности (2021)
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Assessments of effects of implementation of strategic plans for development of Belgrade District heating system
The district heating system (DHS) is one of the key elements of the Belgrade energy system. Overview of the current state and basic characteristics of the DHS are presented in this paper. The focus is on the planned development of DHS and on the analyses of effects of realization of measures and projects defined by strategic documents related to DHS which are adopted by city authorities (Development Strategy of DHS and Strategy of Belgrade Development). Two exploratory scenarios were ...Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Miodrag Grujić. "Assessments of effects of implementation of strategic plans for development of Belgrade District heating system" in Sustainable Cities and Society, Elsevier BV (2020). https://doi.org/10.1016/j.scs.2020.102304
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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 ...... Ratios of Silicate Reference Glasses Determined In Situ by Femtosecond LA-MC-ICP-MS and by Solution Nebulisation MC-ICP-MS. Geostandards and Geoanalytical Research, 38(3), 311–328. Ohmoto, H., (2003): Nonredox transformations of magnetite-hematite in hydrothermal systems. Economic Geology, 98(1), ...
... equilibria: assemblages with fayalitic olivine. American Mineralogist, 73, 727-740. Fujino, K., (1974): Cation distribution and local variation of site symmetry in solid solution series, Fe3O4-Fe2TiO4. Mineralogical Journal, 7, 472–488. Ghiorso, M. S., & Evans, B. W., (2008): Thermodynamics of Rhombohedral ...
... ferrian ilmenite in hornblende andesites of I volcanic phase as well as magnetite with notable Cr concentration in zone of Zlot magnetic anomaly. Examination of samples from porphyry system drill holes of Bor zone reveals different types of (under hydrothermal condition) magnetite/hematite in different porphyry ...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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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... laboratorijskih analiza, tako i prilikom sistematizacije i obrade podataka. Na rezultate ispitivanja fizičko-hemijskih karakteristika mineralnih voda (in situ merenja na sirovim uzorcima, skraćene hemijske analize i određivanje sadržaja mikroelemenata) primenjena je multivarijantna statistička analiza ...
... cluster analysis and R-mode cluster analysis) has been applied on the research results of physical and chemical characteristics of mineral waters (in situ measurements on raw samples, short chemical analyses and analyses of the content of microelements) for better understanding of gathered information ...
... hidrohemiju Rudarsko-geološkog fakulteta u Beogradu. Uzorci su filtrirani na mestu uzorkovanja, a nestabilni fizičko-hemijski parametri mereni su in situ, na sirovim uzorcima. Potenciometrijskom metodom određivan je pH indeks, konduktometrijskom metodom – specifična elektroprovodljivost (µS/cm), a ...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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Proračun recirkulacionih pumpi u postrojenju za odsumporavanje dimnih gasova ,,TENT B"
Tomislav Trpković (2024)Predmet ovog rada baziraće se na proračunu i usvajanju mašinskih instalacija potrebnih za nesmetano funkcionisanje sistema dve međusobno povezane celine Absorber - Pumpna stanica, preko FRP ( Fiberglass Reinforced Plastic) cevovoda kojim se odvija transport suspenzije krečnjaka neophodnog u samom procesu odsumporavanja dimnih gasova. Pored tehničkog opisa same tehnologije koja uključuje tri objekta: Absorber, Pumpna Stanica i cevovod, glavni deo rada odnosiće se na proračun i usvajanje mašinskih instalacija koji uključuju recirkulacione radijalne centrifugalne pumpe i cevovode kojima ...postrojenje za odsumporavanje dimnih gasova, termoelektrana, pumpna stanica, FRP cevovod, Absorber, transport suspenzije gipsa, prirubnica, ventil, potisni cevovod, usisni cevovod... the Pump Station, connected by FRP (Fiberglass Reinforced Plastic) pipelines that transport the gypsum suspension essential in the flue gas desulfurization process. In addition to the technical description of the technology itself, which includes three facilities: the Absorber, the Pump Station ...
... paper will include a technical description of the Pump Station, explaining in detail the operation of the transport of the limestone and gypsum suspension through the recirculating pumps and pipelines to the Absorber. In the final part of the paper, attention will be given to the calculation and ...
... T komad 1.3 5 |6.5 T komad 1.5 '} |D T komad 1 D } Pregradni ventil D.17 O |O Nepovratni ventil a O |O Leptirasti ventil 0.24 |2 D.48 Sito 10 D |} Protokomer |7 '} |D TOTAL koef otpora 12.73 Proračun Gustina suspenzije pp=1000*100/{Cw/ps+(100-Cw)/(pl/1000)) pp kg/mš |1095.9 Unutrašnji ...Tomislav Trpković. Proračun recirkulacionih pumpi u postrojenju za odsumporavanje dimnih gasova ,,TENT B", 2024
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Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду
... , 2004: The Paleontological site of Prebreza (Southern Serbia) – importance and conservation. Protection of nature, 55/1-2: 29–35, Beograd. (in Serbian, English summary) STEFANOVIĆ I., MIJOVIĆ D., 2004: The Middle Miocene fossil site Prebreza in southern Serbia. In: Podemski M. (ed.), Proceedings ...
... ошки факул- тет, стр. 1-522. Др МИЛЕНКО ПУШИЋ, редовни професор DIMKIĆ M., PUŠIĆ M., JORDANOVSKI M., 2007: "In Situ" Investigations To Define The Degradation Of Phenols In Groundwater. IWA Journal Water Science and Technology, Water Supply 7 (3), London, 9–16. http://dx.doi.org/10.13044/j ...
... R., 1992: Adsorption characteristics and floatability of cerus- site with ethylxanthate in the presence of dissolved lead ion. Int. J. Miner. Process., 34, 307–319. POPOV S.R., VUČINIĆ D.R., 1992: The effect of prolonged agitation in lead ion solution on ethylxanthate adsorption and surface char ...главни и одговорни уредник Душан Поломчић. Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду, Београд : Универзитет у Београду, Рударско-геолошки факултет, 2016
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A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)
Gordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević (2021)The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were ...Uljni šejl, Aleksinac, organska supstanca, otvoreni i zatvoreni sistem pirolize, biomarkeri, izotopski sastav ugljjenikaGordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević. "A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)" in Marine and Petroleum Geology, Elsevier BV (2021). https://doi.org/10.1016/j.marpetgeo.2021.105383
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Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)
... Gćol Nord 84:223-225 Bosse V, Boulvais P, Gautier P et al (2009) Fluid-induced disturbance of the monazite Th-Pb chronometer: in situ dating and element mapping in pegmatites from the Rhodope (Greece, Bulgaria). Chem Geol 261:286—302. doi:10.1016/j.chemgeo.2008.10.025 Božović M, Prelević D ...
... poles to foliation related to D», and e poles to spaced cleavage in Vranjska Banja area. See text for details. Symbol legend is given in Fig. 4. Relative scale and posi- tion in reference to Fig. 3 is given in the insef observed in this area (Fig. 8d). Kinematic indicators such as foliation-parallel ...
... cleavage S, could not be critically evaluated in this area (Fig. 9a). @ Springer Northern part of Vlasina Unit Ductile structures in the northern part of the Vlasina Unit were examined in the schists of the pre-Ordovician Vlasina as well in the post-Cambrian meta-sediments (Fig. 9b). P ...Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Richard Spikings, Andreas Wetzel. "Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)" in International Journal of Earth Sciences, Springer Science and Business Media LLC (2016). https://doi.org/10.1007/s00531-016-1380-6
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Early–Middle Jurassic brachiopods from Ponor Mountain, Western Balkan Mountains, Bulgaria; taxonomy, biostratigraphy and occurrence in the context of the early Toarcian Oceanic Anoxic Event
Barbara V. Radulović, Lubomir S. Metodiev, Neda Motchurova-Dekova, Platon Tchoumatchenco. "Early–Middle Jurassic brachiopods from Ponor Mountain, Western Balkan Mountains, Bulgaria; taxonomy, biostratigraphy and occurrence in the context of the early Toarcian Oceanic Anoxic Event" in Historical Biology (2023). https://doi.org/10.1080/08912963.2023.2190757
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An Approach to Efficient Processing of Multi-Word Units
Efficient processing of Multi-Word Units in the course of development of morphological MWU dictionaries is not easy to achieve, especially when languages with complex morphological structures are concerned, such as Serbian. Manual development of this type of dictionaries is a tedious and extremely slow process. To alleviate this problem we turned to our multipurpose software tool, dubbed LeXimir, in the production of lemmas for e-dictionaries of multi-word units. In addition to that, we developed a procedure aimed at making ...... Italian [21], and Portuguese [12]. At Unitex official web site a comprehensive list of references related to the production of e-dictionaries of MWUs for these languages is given. The lexical description of MWUs in the so-called DELAC/DELACF format in practice means that MWU lemmas have to be collected ...
... tive in gen./noun in gen. uskrsenje sina božjeg ‘resurrection of the Son of God’ noun/noun in gen./adjective in gen. menadžment ljudskim resursima ‘human resources management’ noun/adjective in instr./noun in instr. raketa zemlja-vazduh ‘air-to-ground missile’ noun/noun in nom./noun in nom. ugovor ...
... tions are added to general conditions in the processing phase and one such complete set has to be satisfied in full in order to produce a possible solution — a MWU lemma. In that respect each rule behaves as a disjunction of conjunctions. For in- stance, the rule in Example 1 is applied to two component ...Cvetana Krstev, Ivan Obradović, Ranka Stanković, Duško Vitas. "An Approach to Efficient Processing of Multi-Word Units" in Computational Linguistics - Applications, Studies in Computational Intelligence 458 no. 458, Berlin Heidelberg : Springer-Verlag (2013): 109-129. https://doi.org/10.1007/978-3-642-34399-5_6
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State and perspective of individual household heating in Serbia: A survey-based study
This paper presents the results of the household survey on individual household heating systems in Serbia. The survey was conducted in the period October to December 2020 with the participation of 1100 households with individual household heating systems. The information collected in the questionnaire can be separated into three main parts: basic household data, current heating system characteristics, and households’ perceptions and attitudes. The survey results provide unique and comprehensive information concerning individual household heating systems and the main ...Boban Pavlović, Dejan Ivezić, Marija Živković. "State and perspective of individual household heating in Serbia: A survey-based study" in Energy and Buildings, Elsevier BV (2021). https://doi.org/10.1016/j.enbuild.2021.111128
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A Twitter Corpus and Lexicon for Abusive Speech Detection in Serbian
Uvredljivi govor na društvenim medijima, uključujući psovke, pogrdni govor i govor mržnje, dostigao je nivo pandemije. Sistem koji bi bio u stanju da detektuje takve tekstove mogao bi da pomogne da internet i društveni mediji postanu bolji virtuelni prostor sa više poštovanja. Istraživanja i komercijalna primena u ovoj oblasti do sada su bili fokusirani uglavnom na engleski jezik. Ovaj rad predstavlja rad na izgradnji AbCoSER-a, prvog korpusa uvredljivog govora na srpskom jeziku. Korpus se sastoji od 6.436 ručno označenih ...... annotations. Related work is given in Section 1.2, with a short overview of different approaches for developing an abusive speech data set. Our work in acquiring and annotating the data set, including a description of the annotation manual, is presented in Section 2. In Section 2.1, we describe the process ...
... speech κ = 0.370, accuracy = 0.895 semantic proximity in the text. We are interested in the most common words, as well as hashtags, in the data sets for both labels (abusive and non-abusive). We can notice that the most frequently used words in the non-abusive dataset are rather neutral words such as ...
... model in Turtle syntax9 is presented in Listing 2, using the same word lopov (thief) as an example. In addition, the usage of the novel module for frequency, attestation and corpus information for Ontolex Lemon (FrAC) [9] is developed. Our intention is to select trigger words that can be found in the ...Danka Jokić, Ranka Stanković, Cvetana Krstev, Branislava Šandrih. "A Twitter Corpus and Lexicon for Abusive Speech Detection in Serbian" in 3rd Conference on Language, Data and Knowledge (LDK 2021), MDPI AG (2021). https://doi.org/10.4230/OASIcs.LDK.2021.13
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Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija
Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić (2016)... maintenance No maintenance Flotation tailing pond Žarkov Potok is an active landfill site only 2 km northeast from Kosovska Mitrovica, in the basin of Žarkov Potok, right next to the Ibar River. It was formed in 1975 and contains tailings from flotation Prvi Tunel. The space for deposition was constructed ...
... concentration in the top soil was examined in the area of the flotation tailing waste of Bostanište. The sampling was done to the north and the southeast of the deposit. In the northern direction, the top soil sampling was performed in the distances from the deposit of: 300 m, 600 m, and 800 m; in the southeastern ...
... driven by the wind and water in both the close and remote sampled distances. Energies 2016, 9, 935 6 of 18 Table 3. Heavy metal concentration in the top soil in the area of Bostanište and their limited values [17]. Element mg/kg In Northern Direction from the Deposit In Southeastern Direction from ...Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić. "Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija" in Energies, MDPI AG (2016). https://doi.org/10.3390/en9110935
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Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources
Large collections of textual documents represent an example of big data that requires the solution of three basic problems: the representation of documents, the representation of information needs and the matching of the two representations. This paper outlines the introduction of document indexing as a possible solution to document representation. Documents within a large textual database developed for geological projects in the Republic of Serbia for many years were indexed using methods developed within digital humanities: bag-of-words and named ...... produced the docu- ment, e.g. Rudarski institut Beograd ‘Mining Institute in Belgrade’ and toponyms pertaining to the location of the geological site to which the document refers. In the initial version of the improved system a problem was also encountered related to the lack of domain specific geologic ...
... documents for the faceted query related to “lignite coal in Tamnava region” are depicted in Table 1. The initial system achieved good results with faceted search in which keywords in metadata fields appeared in the same form in which they were used in the query (usually the nominative singular), but a large ...
... example, if the keyword Tamnava (used in the nominative) appeared in the database in the locative form as in u Tamnavi ‘in Tamnava’ then the ini- tial system would not be able to recognize it. As already mentioned, the initial system did not match whole words precisely in order to recognize at least some ...Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović. "Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources" in Trans. Computational Collective Intelligence - Lecture Notes in Computer Science 26, Springer (2017). https://doi.org/10.1007/978-3-319-59268-8_8
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A tool for identifying the criticality in the disordered systems with metastable dynamics
Svetislav Mijatović, Dragutin Jovković, Sanja Janićević, Stefan Graovac, Đorđe Spasojević. "A tool for identifying the criticality in the disordered systems with metastable dynamics" in Physica A: Statistical Mechanics and its Applications, Elsevier BV (2021). https://doi.org/10.1016/j.physa.2021.125883
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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... from the B-blockers class, which is highly soluble in water and hydrolytically stable, and thanks to that property, is highly bioavailable in the environment [7,8]. Usually, B-blockers are present in the environment in combination with other B-blockers and various organic pollutants. Their mutual ...
... The lower photocatalytic efficiency of the PIN removal was achieved in a mixture with NAD and MET than in an individual solution. However, a much more interesting, result is the increase in the degradation rate of NAD and MET in the presence of PIN (Figures 9b and 12b). One of the possible reasons ...
... sample was annealed at 500 ?C for 2 h in air. 3.3. Characterization The catalyst was investigated by X-ray powder diffraction (XKRPD). Measurements were conducted on a Rigaku Smartlab X-ray diffractometer in 0-0 geometry (the sample in horizontal position) in part focusing on Bragg-Brentano geometry ...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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Tеслапедиа као централна база библиографских података о Николи Тесли
Циљ овог рада је да прикаже идеју и процес израде најкомплетније електронске библиографске базе о Николи Тесли, симболично назване Теслапедиа. Oвaквa бaзa би укључивaлa Teслину библиoгрaфиjу, кao и библиoгрaфиjу других o њeму. Сaм кoнцeпт рaзвoja Teслaпeдиe je видљив крoз двe глaвнe идeje. Првa идeja je зaснoвaнa нa пoстaвљaњу свих пoстojeћих библиoгрaфских јединица кoje Mузej пoсeдуje нa oдрeђeну вeб-лoкaциjу a другa, пoдjeднaкo вaжнa, oглeдa сe у мoгућнoстимa дaљeг рaзвoja и нaдгрaдњe сaмe структурe базе придруживaњeм нoвих библиoгрaфских пoдaтaкa. Oвa бaзa ...... other authors. The concept of the development of Teslapedia is visible in two main ideas. The fi rst of them implies alignment of all the existing bibliographical units, located in the Museum as its property, on a specifi c web site, and the other, equally important, involves the possibility of further ...
... оста ле за шти тар ске ин сти ту ци је и од из у зет не је ва жно сти да јој при сту пи мо зна лач ки и са по себ- ном па жњом. Ин сти ту ци о нал ни оквир ра зно род ног фон да Му зе ја Ни ко ле Те сле Ва жан за да так ин сти ту ци ја ко је бри ну о ба шти- ни (му зе ји, ин сти ту ци је за шти те ...
... је аде кват ном об ра дом, пре зен та ци јом и до ступ но шћу ин фор ма- ци ја. Са мих де фи ни ци ја тер ми на ин фор ма ци ја и зна ње има напре тек, но, чи ње ни ца је да они у сва- кој де фи ни ци ји оста ју бли ско по ве за ни5. Ин фор- ма тич ка ера, раз вој но вих тех но ло ги ја и ди ги тал- ...Ивана Ћирић, Сузана Топаловић, Биљана Лазић. "Tеслапедиа као централна база библиографских података о Николи Тесли" in Читалиште (2013)
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Mikroorganizmi - biohidrogeološki indikatori odabranih pojava mineralnih voda Srbije
Vladimir Šaraba (2021)Sa namerom definisanja hidrogeološke uloge i značaja mikrobiološkog diverziteta odabranih pojava mineralnih voda Srbije, primenom sistema biodetektora, dokazano je prisustvo gvožđevitih, sulfato-redukujućih, sluz-produkujućih, heterotrofnih aerobnih i denitrifikacionih bakterija, na osnovu čega je proračunat rizik od razvoja procesa biokorozije i biohemijske inkrustacije, te zdravstveni rizik. Uz procenu rizika, izvedene su analize skenirajuće elektronske mikroskopije biofilmova i hidrogeohemijsko modeliranje, te makroskopska, otpička i difrakciona ispitivanja naslaga inkrustacije, dok je fizičko-hemijskim analizama utvrđena vrednost ukupne mineralizacije iznad 1 g/L, kao i povišeni ...biohidrogeologija, SEM analize, makroskopska i optička ispitivanja, rendgenska difrakcija praha, hidrogeohemijsko modeliranje, BART analize, metabarkoding analize mikrobioma, fizičko-hemijske analize, starenje bunara (biokorozija, biohemijska inkrustacija i biozarastanje), zdravstveni rizik... (2007). Forsmark site investigation. Microorganisms in groundwater from boreholes KFM10A, KFM11A and KFM08D-numbers, viability, and metabolic diversity. Results from five sections 298.0-305.1 m and 478.0-487.5 m in KFM10A, 447.5-454.6 m in KFM11A, and 669.7-676.8 m and 828.4-835.5 m in KFM08D (No. S ...
... Maamar et al., 2015), pri čemu sa detaljnim razumevanjem mikrobioloških procesa u podzemnim ekosistemima jedino je moguće primeniti odgovarajući in situ tretman u skladu sa isplatljivijim, ekološki prihvatljivijim i održivim načelima remedijacije (Beyer et al., 2014). Takođe, usled sadržaja mikroorganizama ...
... Tako je sporogena, termofilna sufalt-redukujuća bakterija Desulfotomaculum geothermicum izolovana iz anoksičnih termalnih voda temperature od 58°C (in situ) sa dubine od 2.500 m (Szewzyk et al., 1994). Kada je reč o termalnim staništima, ustanovljeno je da prokarioti imaju sposobnost razvoja na višim ...Vladimir Šaraba. Mikroorganizmi - biohidrogeološki indikatori odabranih pojava mineralnih voda Srbije, Beograd : [V. Šaraba], 2021
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Model za optimizaciju graničnog saržaja metala u rudi u funkciji dugoročnog planiranja površinskih kopova
Daniel P. Kržanović (2016-06-14)Optimizacija graničnog sadržaja metala u rudi jedan je od osnovnih koraka u planiranju i dizajniranju površinskih kopova i ima za cilj postizanje maksimalne neto sadašnje vrednosti (NPV). Iz tog razloga, optimizacija graničnog sadržaja i danas je predmet mnogih istraživanja u rudarskoj nauci, sa ciljem rešavanja praktičnih problema u eksploataciji ležišta.Dugoročno planiranje eksploatacije na površinskim kopovima podrazumeva sagledavanje svih relevantih parametara i faktora (geologije rudnog ležišta, tehnologije proizvodnog procesa, kapaciteta otkopavanja i prerade, troškova, cena metala, iskorišćenja i dr) kako ...površinski kop, dugoročno planiranje, optimizacija graničnog sadržaja, maksimizacija neto sadašnje vrednosti (NPV).... graničnog sadržaja ..........................................................................135 4.2.1. Određivanje odnosa sadržaja metala u rudi i in-situ tonaže (mase) rude .............................................................................................................. ...
... graničnog sadržaja u ležištu .......................................................... 129 Slika 4.2. Odnos između geoloških graničnih sadržaja, in-situ tonaže i prosečnog sadržaja .................................................................................................. 132 Slika 4 ...
... graničnog sadržaja, i na kraju utvrđivanje rudnih rezervi koje se mogu eksploatisati. Slika 4.2. Odnos između geoloških graničnih sadržaja, in-situ tonaže i prosečnog sadržaja Planirani granični sadržaj (engl. Planning Cutoff Grade) je najniži sadržaj metala u rudi za koji je NPV jednaka ...Daniel P. Kržanović. "Model za optimizaciju graničnog saržaja metala u rudi u funkciji dugoročnog planiranja površinskih kopova" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-06-14)
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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... neograničen broj puta izvoditi eksperimentalno testiranje, ponavljati i ''proigravati'' pretpostavljene situacije u tehnološkom procesu. U odnosu na ''in situ'' ili pilot eksperimentalna testiranja, prednost ovakvog pristupa je neometanje neposredne proizvodnje i nepostojanje rizika havarije ili neke ...
... 165–183. 84. J. A. Caldwell, A. MacG Robertson, Selection of tailings impoundment sites, Die sivilie ingenieur in Suid Afrika, 1983, pp. 537-552. 85. A. MacG Robertson, A. S. Moss, Site selection and optimization studies for mill sites and tailings impoundments, Asian mining, Institution of Mining ...
... application in various areas of industry, however, by reviewing literature it was concluded that the applicability of this theory in mining has not been sufficiently investigated. This was the starting point of a doctoral dissertation, examining the possibilities of its application in mining. In the e ...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)