Претрага
913 items
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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
... highest among all models. @ Springer In addition to the statistical examination of evaluation metrics, an equally significant analysis pertains to the visual analysis of classification maps, i.e., predictive maps. The predictive maps of the chosen models for all three datasets are illustrated ...
... distance to fault map) with the RF and KNN algorithms in areas with dense vegetation and complex geological units below the surface. An added element of this study pertains to the utilization of legacy geological maps as the basis for ophiolite test data (Pendžerkovski et al. 1963; Rakikevik ...
... suitable class balance for the training dataset is a critical factor in achieving accurate ophiolite prediction with RF and KNN algorithms. The analysis of feature importance revealed that the Bouguer gravity anomaly map, total intensity of the Earth's magnetic field reduced to the pole map, distance ...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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Trace elements in pyrite from the Čukaru Peki porphyry Cu-high-sulfidation deposit, Serbia: implications for ore evolution in a polyphase hydrothermal system
Miloš Velojić, Viktor Bertrandsson Erlandsson, Frank Melcher, Peter Onuk, Rade Jelenković, Vladica Cvetković (2022)Porfirska ležišta bakra, Ležišta visoke sulfidacije, Pirit, Elementi u tragovima, Laserska ablacija, Timočki magmatski kompleks, Borska metalogenetska zonaMiloš Velojić, Viktor Bertrandsson Erlandsson, Frank Melcher, Peter Onuk, Rade Jelenković, Vladica Cvetković. "Trace elements in pyrite from the Čukaru Peki porphyry Cu-high-sulfidation deposit, Serbia: implications for ore evolution in a polyphase hydrothermal system" in Geologia Croatica (2022). https://doi.org/10.4154/gc.2022.25
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Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics
Agate veins and nodules occur in the Lece Volcanic Complex (Oligocene-Miocene) situated in the south of Serbia and occupying an area of 700 km2. This volcanic complex is composed predominantly of andesites, with sporadic occurrences of andesite-basalts, dacites and latites, and features agate formations that have been very little investigated. This study focuses on five selected agate occurrences within the Lece Volcanic Complex, employing optical microscopy, scanning electron microscopy (SEM), X-ray powder diffraction analysis, inductively coupled plasma mass spectrometry ...Zoran Miladinović, Vladimir Simić, Nenad Nikolić, Nataša Jović Orsini, Milena Rosić. "Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics" in Minerals, MDPI AG (2024). https://doi.org/10.3390/min14050511
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Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeFen Huang, Ljiljana Vasic, Xia Wu, Jianhua Cao, Saša Milanovic. "Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia" in Environmental Earth Sciences, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s12665-019-8452-4
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A WebGIS Decision Support System for Management of Abandoned Mines
Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2016)... in achieving its strategic goal of accession to the European Union, and for improving the environment, by assisting in the implementation of this element of the National Environmental Approximation Strategy of Serbia to guide the process of bringing the country into line with the EU environmental acquis ...
... reserves of mineral resources; and (b) abandoned mines with depleted reserves. Mines from the first group are especially interesting as objects for analysis when there is entrepreneurial and economic interest in their reactivation and evaluation of remaining reserves. As for those from the second group ...
... current situation. For the other subgroup only the expert assessment of the current situation can be carried out, as a basis for further action. Analysis and solutions of problems of abandoned mines is also important for management of natural resources beyond the mineral resources domain. This includes ...Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis. "A WebGIS Decision Support System for Management of Abandoned Mines" in Energies 7 no. 9 (2016): 567. https://doi.org/10.3390/en9070567
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Contents of potentially toxic elements in residual soils of a long-term mining region: a key study from Central and Western Serbia
Milun Jovanović, Dejan Prelević, Vidojko Jović, Danica Srećković-Batoćanin, Snežana Branković (2022)Regional geochemical research of residual soil was conducted in an area of about 20,000 km2 in the region of Central and Western Serbia, where six metallogenetic zones and mining since ancient times have been documented. The geochemical background variation in the residual soil was established upon the contents, spatial pattern and natural background of potentially toxic elements (PTEs). The limits of natural background values (mg·kg-1) were determined by the integral method. Our data show that anomalous concentrations of As, ...Milun Jovanović, Dejan Prelević, Vidojko Jović, Danica Srećković-Batoćanin, Snežana Branković. "Contents of potentially toxic elements in residual soils of a long-term mining region: a key study from Central and Western Serbia" in Periodico di Mineralogia (2022). https://doi.org/10.13133/2239-1002/17042
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Availability as a dimension of energy security in the Republic of Serbia
Boban Pavlović, Dejan Ivezić (2016)There is a range of modern approaches and models in literature for the evaluation and determination of energy security, which are based on different parameters and indicators. For most of them, a common characteristic is emphasizing the avail ability of energy, as an important dimension for ensuring energy security. In this paper, concise overview of Serbian energy sectors is given and appropriate energy indicators are defined and determined. Selected indicators provide insight into the main components that characterize availability ...... 1/2 1/3 1 Once the initial pairwise comparison matrix is built, it is possible to derive the nor- malised pairwise comparison matrix, Anorm. Each element of the column of the initial matrix is divided by the sum of the elements of the same column: norm 1 , , 1, ,ij n ij i a A i j n a = = ...
... Year 2017, Vol. 21, No. 1A, pp. 323-333 In this paper the review the existing literature in the field of energy security is given, as well as the analysis of thematic framework and dimensions of energy security. The focus is on a single dimension of energy security – availability. Availability is analysed ...
... component of availability is analysed by using selected set of indicators. Analytic hierarchy process (AHP) methodology is proposed and implemented for analysis of obtained indicators, their interactions and specific importance to availability performance. The proposed procedure for availability indicator ...Boban Pavlović, Dejan Ivezić. "Availability as a dimension of energy security in the Republic of Serbia" in Thermal Science, National Library of Serbia (2016). https://doi.org/10.2298/TSCI160923303P
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The Nooj System as Module within an Integrated Language Processing Environment
... properties can be attached to each literal string in wordnet, in a form of a XML element included into the literal element. For this kind of information the elementcan be used that is contained in the element in the core XML schema of the Balkanet project (Tufiş 2004). 3.3.2 ...
... 6) is used for retrieving semantic information that is going to become the content of SEM element, from all the working synset’s hypernyms up to the root element. SEM element, the newly introduced element in a wordnet’s XML schema, is a semantic tag, that points to a specific sense of that synset ...
... enables the inclusion of morphosyntactic information from Serbian morphological dictionary into a working synset. An element LNOTE, which is in the content of the LITERAL element in the XSD schema common to all Balkan languages is used in the Serbian wordnet for morphosyntactic information specific ...Ranka Stanković, Duško Vitas, Cvetana Krstev. "The Nooj System as Module within an Integrated Language Processing Environment" in Proceedings of the 2007 International Nooj Conference, Cambridge Scholars Publishing (2008)
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Improvement of education through the cooperation between CEEPUS EURO Geo-Sci network and scientific projects: examples from UB-FMG
Kristina Šarić, Dejan Prelević, Miloš Marjanović, Uroš Stojadinović, Vladimir Simić . "Improvement of education through the cooperation between CEEPUS EURO Geo-Sci network and scientific projects: examples from UB-FMG" in V Congress of Geologists of Republic of Macedonia ": “Geology in a changing world”, Makedonsko geološko društvo (2024)
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Application of machine learning for diagnosing the operation of a deep well pump in oil production
Maja Trikić (2024)This paper will thoroughly examine how machine learning can improve the diagnosis of deep well pumps by analyzing the role and function of the pumps, dynamograms, sensor technologies, and diagnostic methods.Our analysis will provide insights into modern techniques and approaches for enhancing the performance and reliability of oil production systems, targeting cost reduction and increased operational efficiency.deep well pump, dynamograms, machine learning, diagnostics of operating coditions,Random Forest, XGBoost... SYSTEMS 3.1 Explanation of dynamograms in oil production The basis for diagnosing issues in downhole pump operation is the analysis of dynamogram shapes. This analysis uses theoretical, surface, and downhole dynamograms. By comparing the shapes of dynamograms obtained from measured data with ...
... more maintainable program and is often more accurate in identifying spam. 18 Ready for Use () problem ng Evaluation ol analysis i Solutions (5 error analysis Figure 4.2 Machine learning approach If spammers notice that your filter blocks messages containing the word "Your" in the ...
... Fourier Transform, moment analysis, and other techniques to recognize key patterns in the data. These descriptors allow conversion of complex data into a format that is easier to analyze and interpret. 51 5.Use in Diagnostics: Extracted features are used for further analysis to identify potential ...Maja Trikić. Application of machine learning for diagnosing the operation of a deep well pump in oil production, 2024
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Model inteligentnog sistema adaptivnog upravljanja procesom prerade rude
Ivana M. Jovanović (2016-01-13)U oblasti procesa prerade rude, flotacijska koncentracija predstavlja jednu od najznačajnijih i najčešće primenjivanih metoda separacije korisnih od nekorisnih minerala. Samim tim, veoma je važno osigurati uspešan rad flotacijskog postrojenja kroz dostizanje zadovoljavajućih tehno-ekonomskih pokazatelja. Cilj upravljanja procesom flotacijske koncentracije je upravo optimizacija kvaliteta i iskorišćenja korisne komponente u koncentratu uz maksimizaciju profita. Shodno tome, istraživanja na polju modelovanja i upravljanja ovim procesom zauzimaju značajno mesto u praksi kontolnog inženjenringa.Teorijska istraživanja u okviru doktorske disertacije obuhvatila su analizu položaja ...flotacijska koncentracija, modelovanje, upravljanje, inteligentni sistem, soft kompjuting, fazi logika, veštačke neuronske mreže... diskursa, čiji su elementi označeni sa x. Fazi skup A u univerzumu diskursa X može se predstaviti Venovim dijagramom kao što je dato na slici 12a. Funkcija pripadnosti μA(x) daje ocenu (stepen) mogućnosti da neki element x iz X pripada fazi skupu A. Funkcija pripadnosti elementima iz univerzuma diskursa ...
... (12) Što je 𝜇𝐴(𝑥) bliže jedinici, to dati element više pripada skupu A. Slično tome, što je 𝜇𝐴(𝑥) bliže nuli, dati element manje pripada skupu A. Tipična funkcija pripadnosti prikazana je na slici 12b. I. Jovanović, MODEL ...
... testiranja je i u ovom slučaju poslužila kao kriterijum odabira najpovoljnije arhitekture neuronske mreže. Elementi razvoja ovog modela predstavljeni su na slici 92. Slika 92. Elementi razvoja VNM2 modela. 7.6.10 Model na bazi neuronske mreže za predviđanje sadržaja bakra u jalovini (VNM3) ...Ivana M. Jovanović. "Model inteligentnog sistema adaptivnog upravljanja procesom prerade rude" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-01-13)
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Sorpcija herbicida na neorganski i organski modifikovanom prirodnom montmorionitu iz Bogovine
Lazar M. Kaluđerović (2018-01-17)fikasnost prilikom sorpcije S-metolahlora i klomazona od strane neorganskih iorganski modifikovanih montmorionita sa lokaliteta Bogovina odreĎena je metodombach adsorpcije. Uzorci montmorionita su tretirani prvo rastvorom NaCl a zatim irazličitim koncentracijama organskih kompleksa. Adsorpcione izoterme su dobijenetretiranjem uzoraka različitim koncentracijama herbicida. Detaljna mineraloškakarakterizacija uzoraka uraĎena je metodom rendgenske difrakcije. Rezultati interakcijemontmorionita sa organskim kompleksima i herbicidima dobijeni su primenomrendgenskih, optičkih, termičkih i spektroskopskih metoda.Na osnovu rezultata rendgenskih ispitivanja uzoraka, utvrĎeno je prisustvoorganskih kompleksa i herbicida u meĎuslojnom prostoru montmorionita.Montmorioniti modifikovani ...adsorpcija, montmorionit, heksadeciltrimetilamonijum bromid,feniltrimetilamonijum hlorid, S-metolahlor, klomazon... comments on the thermal analysis of organoclays. Journal of Thermal Analysis and Calorimetry, 105: 897– 906 150 Yariv S., Lapides I., Borisover M 2012. Thermal analysis of tetraethylammonium and benzyltrimethylammonium montmorillonites. Journal of Thermal Analysis and Calorimetry, 110: 385–394 ...
... llonites. Part 1. Thermogravimetry, carbon and hydrogen analysis and thermo-IR spectroscopy analysis. Journal of Thermal Analysis and Calorimetry, 105: 921–929. Lee J. F., Mortland M. M., Chiou C.T., Boyd S. A. 1989a. Shape-selective adsorption of aromatic molecules from water by tetramethyl ...
... Thermo-IR-spectroscopy and X-ray study. Journal of Thermal Analysis and Calorimetry, 51: 415–430. Ovadyahu D., Lapides I., Yariv S. 2007. Thermal analysis of tributylammonium montmorillonite and Laponite. Journal of Thermal Analysis and Calorimetry, 87: 125–134. Park Y., Ayoko G. A., Kristof ...Lazar M. Kaluđerović. "Sorpcija herbicida na neorganski i organski modifikovanom prirodnom montmorionitu iz Bogovine" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-01-17)
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Merenje i praćenje temperature u cevovodima
Jelena Plećaš (2024)U završnom radu pod naslovom „Merenje i praćenje temperature u cevovodima“ istražuje se značaj merenja temperature u industriji. Opisuje se kako je merenje temperature ključno za efikasno upravljanje procesima i održavanje sigurnosti.Postoje i razvijene su brojne metode merenja temperature, od kojih svaka ima svoju specifičnu primenu, u određenim oblastima. Rad obuhvata pregled razvoja termometrije, različite temperaturne skale, kao i detaljan prikaz instrumenata za merenje temperature. Posebna pažnja posvećena je greškama dodirnih termometara i metodama korekcije.Na kraju,rad se fokusira na ...... principa za merenje temperature: - pomoću kontaktnih termometara, gde je senzorski element u termičkoj ravnoteži sa sistemom čija se temperatura meri; - pomoću radijacionih pirometara, kod kojih senzorski element prima energiju zračenja zagrejanog tela čija se temperatura meri. U oba slučaja ...
... Slika 3.1. Manometarski termometar sa gasom (a) senzorski element; (b) temperaturna kompenzacija Manometarski termometri sa tečnošću se, u principu ne razlikuju od manometarskih termometara sa gasom i imaju iste konstruktivne elemente. Prečnik i dužina manometarskog suda su manji (d = 10 mm ...
... mehaničko pomeranje. Za indikaciju temperatura u opsegu od -30 *C do 1000 ?C se koriste šfapni dilatacioni termometri, kod kojih je senzorski element štap od metala koji se nalazi u cevi od materijala sa manjim linearnim koeficijentom širenja (kvarc, porcelan). Pored indikacije, mogu se koristiti ...Jelena Plećaš. Merenje i praćenje temperature u cevovodima, 2024
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Assessment of spa mineral water quality from Vrnjačka Banja, Serbia: geochemical, bacteriological, and health risk aspects
Nebojša Đ. Pantelić, Simona Jaćimović, Jana Štrbački, Danijela B. Milovanović, Biljana P. Dojčinović, Aleksandar Ž. Kostić (2019)The goal of this study is to evaluate the quality of seven natural mineral water sources in the Vrnjačka Banja area used in the treatment of various diseases. The 24 macro- and microelements were determined by inductively coupled plasma optical emission spectrometry (ICP-OES). The results show that element content was within allowed limits of concentration, except for B, As, and Se. The evaluated content of these elements can be associated with geological and anthropogenic factors. The sample S6 contains ...Nebojša Đ. Pantelić, Simona Jaćimović, Jana Štrbački, Danijela B. Milovanović, Biljana P. Dojčinović, Aleksandar Ž. Kostić. "Assessment of spa mineral water quality from Vrnjačka Banja, Serbia: geochemical, bacteriological, and health risk aspects" in Environmental Monitoring and Assessment, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s10661-019-7848-7
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Geohemija
Dejan Prelević (2021)Dejan Prelević. Geohemija, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2021
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Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and reduced distances at “Nepričava“ open pit mine
... constructed facilities owing to blasting at open pit mine "Nepričava". Underground Mining Engineering, 22, pp. 33-48. 10 VUKADINOVIĆ, S. (1970) Elementi računa verovatnoće i matematičke statistike. Beograd: Tehnika za umnožavanje Biroa za građevinarstvo. ...
... blasting and geologic characteristics of the soil, being determined on the basis of test blasting for the specific work environment. In this paper, an analysis of the method for the determination of soil oscillation law parameters has been conducted, suggested by Profesor M. A. Sadovski. The applicability ...
... 0695 13 15.2808 1.2227 1.0784 1.2227 +0.1443 0 14 16.5314 0.5276 0.9762 1.0882 -0.4486 -0.5606 Based on the data in Table 3, a statistical analysis was carried out and the following values were obtained: For model 1: The curveline dependency index 1 between the reduced distance R and soil ...Suzana Lutovac, Sanja Bajić, Marina Ravilić, Radmila Gaćina. "Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and reduced distances at “Nepričava“ open pit mine" in Underground Mining Engineering, Belgrade : University of Belgrade, Faculty of Mining and Geology (2015). https://doi.org/10.5937/podrad1526009L
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P-T analiza uglja RB Kolubara
Rada Vitomir (2024)Rudarski basen Kolubara predstavlja jedno od najvažnijih ležišta lignita u Republici Srbiji i ključni je faktor u snabdevanju zemlje energijom. Kvalitet uglja iz ovog basena direktno utiče na efikasnost termoelektrana i zadovoljenje energetskih potreba. U ovom radu, opisan je značaj tehničke i elementarne analiza uglja kako bi se utvrdili fizičko-hemijski parametri uglja iz Rudarskog basena Kolubara. U drugom delu rada dat je opis P-T analize uglja i njen značaj za ocenu mogućnosti čišćenja uglja. Takođe, dati su i rezultati ...... preko 1350%. Elementi-primese u uglju. U pepelu mnogih ugljeva prisutni su u većim ili manjim količinama izvesni elementi, kao germanijum, galijum, uran, bakar, berilijum, vanadijum, molibden, volfram, kobalt, zlato, srebro, elementi retkih zemalja itd. Većina ovih elemenata vezana jJe za mineralne ...
... karakteriše ga postepeno povećanje ugljeničnog sadržaja ı toplotne vrednosti, dok se istovremeno smanjuje sadržaj kiseonika, vodonika ı drugih elemenata. Ugalj se klasifikuje prema stepenu karbonizacije u više vrsta, uključujući treset, lignit, mrki ugalj, kameni ugalj i antracit. Lignit predstavlja ...
... i hemijske promene pod uticajem visokog pritiska i temperature. Tokom ovog procesa, povećava se sadržaj ugljenika i smanjuje prisustvo drugih elemenata, što rezultira različitim tipovima uglja sa specifičnim karakteristikama (Ahmaruzzaman, 2010). Jedan od osnovnih parametara za klasifikaciju uglja ...Rada Vitomir. P-T analiza uglja RB Kolubara, 2024
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Споменица 1991. – 2015. година: 135 година геологије и 70 година рударства на Универзитету у Београду
... ИЗАБРАНИХ НАУЧНИХ И СТРУЧНИХ РАДОВА НАСТАВНИКА И САРАДНИКА ФАКУЛТЕТА 370 TORBICA S., LJUBOJEV M., MILANOVIC P., 2000: Support Interaction Analysis Using a Finite Element Method. Journal of Mining and Metallurgy, 36 (1-2), A, 1–61. PETROVIC N., TORBICA S., 2002: Selection of development drifts in Soko ...
... Geology of Ore Deposits, 55, 298–304. Др ДРАГОСЛАВ РАКИЋ, доцент RAKIĆ D., ĆORIĆ S., 1998: Subsidence of a vertically loaded pile - analysis by finite element method. 7 International symposium on application of mathe- matical methods and computers in mining, geology and metallurgy, Sofia, Bulgaria ...
... projektovanje, građenje i obnova graditeljstva, Novi Sad, 2009. ĆORIĆ S., ČAKI L., RAKIĆ D., ĆORIĆ ST., 2012: Nelinear stress-strain analysis of terrain using the finite element method. Mining Enginerering - Rudarski radovi, Published by Mining and metallurgy institute Bor, No 4/2012, ĆORIĆ S., RAKIĆ ...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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Savremeni pristup rešavanja problema industrijskog otpada
Mariја Bošković (2024)Rad ukazuje na savremene metode rešavanja problema industrijskog otpada, sa posebnim fokusom na pećnu prašinu koja nastaje tokom metalurških procesa, poput proizvodnje čelika u elektrolučnim pećima. U radu se detaljno razmatra hemijski sastav pećne prašine, koja sadrži teške metale poput cinka, olova i kadmijuma, i naglašavaju ekološki izazovi koje predstavlja njeno zbrinjavanje. Takođe, analiziraju se metode tretmana i valorizacije pećne prašine, uključujući pirometalurške i hidrometalurške procese, pri čemu je poseban akcenat stavljen na reciklažu cinka iz pećne prašine. Dalje, ...... prašine može se identifikovati prisustvo sledećih elemenata: Fe, Zn, Pb, Mn, Cu, Al, Ca, Mg, K, S, P, C,O:1C!1 [5]. 22 Gvožđe, cink, mangan, aluminijum, kalcijum, magnezijum i kiseonik se uvek nalaze u uzorcima prašine, dok prisustvo ostalih elemenata varira u zavisnosti od analiziranih čestica ...
... frakcije u poređenju sa prosečnim uzorkom, dok udeli cinka, olova i kadmijuma opadaju [5]. Sadržaj pomenutih elemenata utiče na kvalitet čeličnog otpada — niži sadržaj ovih elemenata označava bolji kvalitet. Elektrolučna prašina sa visokim sadržajem cinka najčešće ga sadrži u obliku ZnO, dok je ...
... čestice: Fina prašina koja se može lako širiti vazduhom, predstavlja opasnost za respiratorni sistem. > Sumpor (S) i hlor (CI): Prisustvo ovih elemenata može doprineti formiranju korozivnih spojeva i kiselih gasova. Najveći procenat clektrolučne prašine čini gvožđe, dok je među teškim metalima ...Mariја Bošković. Savremeni pristup rešavanja problema industrijskog otpada, 2024
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Fuzzy stohastički model izbora sistema otvaranja podzemnog rudnika
Saša M. Jovanović (2016-05-16)Investiciono okruženje skopčano sa rudarskom industrijom je veoma svojstveno kada seuporedi sa okruženjima koje susrećemo u tipičnim proizvodnim industrijama. Neke odkarakterisitka rudarstva, koje su često naznačene kao jedinstvene su: visok intenzitetinvesticija, dugi predproizvodni periodi, visok rizik i neobnovljivost resursa.Investiranje u sistem otvaranja rudnika predstavlja dobar primer ireverzibilneinvesticije. Takva investicija zahteva pažljivu analizu, jer nakon njene realizacije ona sene može nadoknaditi bez značajnog gubitka vrednosti. Očigledno je da izbor sistemaotvaranja podzemnog rudnika pripada strateškom planiranju...... neprecizne [36]. U klasičnoj teoriji skupova postoje veoma precizne granice koje razdvajaju elemente koji pripadaju određenom skupu od elemenata van posmatranog skupa. Drugim rečima za svaki posmatrani element se veoma lako utvrđuje da li pripada ili ne pripada određenom skupu. Tako na primer, ako ...
... opsegu koji je definisan tehničkim mogućnostima transportne opreme, itd. 5 Elementi rešenja će opisati vrednosti promenljivih koje minimiziraju nominovani troškovni cilj: lokaciju i dubinu okna, odnosno elemente niskopa ili hodnika, topologiju mreže otvaranja, procenjen trošak optimalnog ...
... parova čije komponente jesu u relaciji. Neka je V neprazan skup i E binarna relacija u V. Uređen par G=(V,E) se naziva graf. Elementi skupa V su čvorovi grafa, a elementi skupa E grane ili ivice grafa. Dakle, graf je zadat ako je zadat skup čvorova i skup grana. Graf se crta na sledeći način. Čvorove ...Saša M. Jovanović. "Fuzzy stohastički model izbora sistema otvaranja podzemnog rudnika" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-05-16)