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Упит dcterms_creator_txt:Abu Hasan Abdel Fattah M

988 items

  • Fuzzy expert analysis of the severity of mining machinery failure

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    Mining machinery failure is almost an everyday occurrence. Usually the failures bare certain consequences, which require additional financial costs to repair and restore the system to its operational state. The consequences are viewed through negative and damaging effects a failure has on the machine, health and safety of the employees, work environment, and on the environment. The removal of the consequences of the failure requires additional financial investment, which has a negative impact on the company’s business. In order ...
    Severity of failure, Severity of failure assessment, Mining machinery, Fuzzy sets, Fuzzy logic

  • Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings

    Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić (2018)
    ... Timescale 0.4 s/div Channel 1 Channel Channel Input Geo Input Input Unit mm/s Unit Unit Trig level 4 Trig level Trig level Pk 1.735 Pk Pk Diff m/s2 0.434 Diff m/s2 Diff m/s2 Integ um 9.57 Integ ym Integ um Frq(zx) Hz 39.5 Frq(zx) Hz Frq(zx) Hz [s]_|-4 -4 -4 0.0 i ae 0.4 forrest ng ; : : Tn aes ss : ; ; a. ...
    ... 28 mm, cartridge length 0.15 m, and cartridge weight 0.1 kg. Electric capacitor was used for initiation of the explosive [17]. During experimental investigations performed in Majdanpek open pit, the following blasting parameters were specified: • depth of borehole: 0.5 m, • weight of explosive charge ...
    ... charge per borehole: 0.10 kg, • number of boreholes: 10, • distance between boreholes: 1.0 m, • distance between measuring point and the first borehole: 5.0 m, • time delay between initiation of boreholes: 0.5 s. 4.1.3. Calculation of Parameters of Rock Masses Oscillation Equation in Majdanpek Open Pit ...

  • The influence of rainfall factors on soil resistance to erosion

    Nikola Živanović, Vukašin Rončević, Carla Ferreira, Milica Kašanin-Grubin, Stevan Ćorluka, Veljko Rupar, Vladimir Čebašek (2024)
    rainfall, rainfall factors, erosion, soil

  • Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko-energetskim kompleksima

    Jelena R. Malenović - Nikolić (2016-07-12)
    Efikasnost funkcionisanja sistema upravljanja zaštitom životne sredine u rudarskoenergetskimkompleksima zavisi od stepena sprovođenja usvojene politike zaštiteživotne sredine i primene preventivnih mera zaštite životne sredine. Nedostatakfinansijskih sredstava za unapređivanje tehnologije eksploatacije, transporta, pripreme iprerade energetskih mineralnih sirovina u našim rudarsko-energetskim kompleksima,negativno utiče na ostvarivanje ciljeva zaštite životne sredine, a posledice radnihaktivnosti rudarsko-energetskih kompleksa dovode do smanjenja nivoa kvalitetavazduha, vode i zemljišta...
    rudarsko-energetski kompleks, životna sredina, sistem upravljanja,višekriterijumsko odlučivanje, modeliranje
    ... S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W ...
    ... 11.16 S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S ...
    ... pp. 1–20 84. Rudberg, M., Waldemarsson, M., Lidestam, H., Strategic perspectives on energy management: A case study in the process industry, Applied Energy 104, 2013, pp. 487– 496 85. Welsch, M., Hermann, S., Howells, M., Rogner, H., Young, C., Rammad, I., Bazilian, M., Fischer, G., Alfstad, ...

  • Quantitative landslide risk assessment in the city of Tuzla

    Miloš Marjanović, Biljana Abolmasov, Cvjetko Sandić, Miralem Mulać, Petar Begović (2021)
    In the climate-changing conditions, geological environment interacts more dramatically with the urban fabric than before. The urbanization is expansive and more aggressive than before, but so are the weather extremes and long-term climate trends. In effect, many processes which can be triggered by either side, nature or engineering, are becoming more pervasive than before, and such is the case with landslides. Dealing and managing landslides requires few crucial steps, starting from collecting data on landslide location and typology – ...
    "landslides", "risk assessment"
    ... Auflič, M., Andres, N., Poyiadji, E., Lamas, P. C., Zhang, W., Peshevski, I., Pétursson, H. G., Kurt, T., Dobrev, N., García-Davalillo, J. C., Halkia, M., Ferri, S., Gaprindashvili, G., Engström, J., Keellings, D. (2016) “Fatal landslides in Europe”. Landslides. 13(6): 1545–1554 Marjanović, M. (2014) ...
    ... COLOMBIA- JUNE 15th-19th-2020 Marjanović, M., Đurić, U., (2016) “From landslide inventory to landslide risk assessment: Methodology, current practice and challenges”. Geologica Macedonica, special issue vol. 4, 199– 208. Marjanović, M., Kovačević, M., Bajat, B., Voženílek, V., (2011) “Landslide ...
    ... stable slope classes were eventually defined in the inventory. It was subsequently converted from polygon-based to a 5 m resolution raster. All other raster data had the same 5 m resolution. Landslide susceptibility required several static conditioning factors used as proxies for the landsliding ...

  • Arsenic in Tap Water of Serbia´s South Pannonian Basin and Arsenic Risk Assessment

    Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić (2012)
    kvalitet podzemnih voda, arsen, analiza rizika, Panonski Basen
    ... 002606 8. ROWLAND H.A.L., OMOREGIE E.O., ROMAIN M., JIMENEZ C., MERTENS J., BACIU C., HUG S.J., BERG M. Geochemistry and arsenic behaviour in groundwater resources of the Pannonian Basin (Hungary and Romania). Appl. Geochem. 26, 1, 2010. 9. UJEVIĆ M., DUIĆ Ž., CASIOT C., SIPOS L., SANTO V., DADIĆ Ž ...
    ... water supply systems are comprised of relatively deep (70-250 m) drilled wells which tap Pliocene-Pleistocene sediments, while no elevat- ed arsenic concentrations were recorded in the “first” (shal- low) aquifer tapped by village wells (up to 10 m) [9], such that the origin of arsenic in groundwater within ...
    ... South Pannonia Basin is considered to be condi- tionally poor. Groundwater suitable for public water supply is found only up to a depth of 300 m, possibly 450 m in Arsenic in Tap Water of Serbia’s... 1785 some cases. Below this depth, the physicochemical proper- ties of the groundwater are extremely ...

  • Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone

    Emő Márton, Marinko Toljić, Vesna Cvetkov (2022)
    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 ...
    Adria–Europe suture, Vardar Zone, Paleomagnetism, Thrusting, Vertical axis rotation

  • Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia

    Bojan Kostić, Danica Srećković-Batoćanin, Petyo Filipov, Pavle Tančić, Kristijan Sokol (2021)
    This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern ...
    grandite, garnets, skarn, Rudnik
    ... Wehrheim S., Reutter M., Romer R., Boev B., Božović M., Bogaard P., Cvetković V. & Schmid S. 2017: The Late Cre- taceous Klepa basalts in Macedonia (FYROM) – Constrains on the final stage of Tethys closure in the Balkans. Terra Nova 23, 145–153. https://doi.org/10.1111/ter.12264 Schmid M., Bernoulli D. ...
    ... general support from all stuff of the Company Rudnik Mine. References Anđelković M. 1973: Geology of Mesozoic vicinity of Belgrade. Annales Geologiques de la Peninsule Balkanique 38, 1–136 (in Serbian). Bau M. 1991: Rare-earth element mobility during hydrothermal and metamorphic fluid-rock i ...
    ... Filipović I., Pavlović Z., Marković B., Rodin V., Marković O., Gagić N., Atin B. & Milićević M. 1978: Geological Map of Yugoslavia 1:100,000, Sheet Gornji Milanovac. Federal Geological Insti­ tute, Belgrade. Gaspar M., Knaack C., Meinert D.L. & Moretti R. 2008: REE in skarn systems: A LA-ICP-MS study of ...

  • Medical Domain Document Classification via Extraction of Taxonomy Concepts from MeSH Ontology

    Mihailo Škorić, Mauro Dragoni (2019)
    This paper is a result of a task that was presented to attendants of Keyword Search in Big Linked Data summer school, that was organized by Vienna University of Technology, under the Keystone COST action in the summer of 2017. It presents a specific approach to the classification via creation of minimal document surrogates based on the US National medical library’s MeSH ontology, which is derived from the Medical Subject Headings thesaurus. In a series of previously classified medically ...
    document classification, MeSH, ontology, information extraction
    ... during a one- day hackathon by the lecturers of the summer school Keystone 3rd training Infotheca Vol. 19, No. 1, September 2019 55 Škorić M., Dragoni M., “Medical document classification...”, pp. 55–69 school: Keyword Search in Big Linked Data,1 organized in Vienna from 21– 25 August, 2017 under ...
    ... to finding the appropriate class 6 Lee Raymond Dice – American biologist (1887-1977) Infotheca Vol. 19, No. 1, September 2019 57 Škorić M., Dragoni M., “Medical document classification...”, pp. 55–69 with the largest sim(document, document class) value, i.e. the class most similar to the document ...
    ... detail, in order to get a better insight into the methods used and the results obtained. Infotheca Vol. 19, No. 1, September 2019 59 Škorić M., Dragoni M., “Medical document classification...”, pp. 55–69 2.1 Extraction of taxonomy of concepts from MeSH ontology Extracting the matrix of the concept ...

  • Izbor rotornih bagera za proces revitalizacije: primer rotornih bagera SRs 1200 u rudarskom basenu Kolubara

    Predrag Jovančić, Dragan Ignjatović, Stevan Đenadić, Filip Miletić, Goran Todorović, Dragan Novaković (2020)
    Revitalizacija je proces ili skup tehničkih zahvata na mašini kojim se vrši zamena svih dotrajalih ili oštećenih delova metalne konstrukcije. Sastavni deo procesa revitalizacije je i modernizacija zastarele elektro-mašinske opreme. Principi revitalizacije sasvim sigurno nisu sadržani u okviru redovnog godišnjeg ili dnevnog održavanja. Oni predstavljaju održavanje onih veličina koje su značajne za mašinu kao celinu (u ovom slučaju rotorni bager). U ovom radu su analizirani rotorni bageri oznake SRs 1200. Na površinskim kopovima rudarskog basena Kolubara takvih bagera ima ...
    Rotorni bageri, revitalizacija, SRs1200

  • Is the Sava-Vardar zone a remnant of an Upper Cretaceous ocen? Pro et contra

    Vladica Cvetković, Dejan Prelević, Ana Mladenović (2024)
    Neotethys, ocean closure, subduction
    ... S. M. Bemoull, D., Figenschuh, B., Matenco, L., Schefer, S., Schuster, R., ... & Ustaszewski, K. (2008). The Alpine-Carpathian-Dinaridic orogenic system: correlation and evolution of tectonic units. Swiss Journal of Geosciences, 101, 139-183. 3. Prelević, D., Wehrheim, S., Reutter, M., Romer ...
    ... Romer, R. L., Boev, B., Božović, M., ... & Schmid, S. M. (2017). The Late Cretaceous Klepa basalts in Macedonia (FYROM)— Constraints on the final stage of Tethys closure in the Balkans. Terra Nova, 29(3), 145-153. 4. Cvetković, V., Šarić, K., Grubić, A., Cvijić, R., & Milošević, A. (2014). ...
    ... Quadt, A. V., Peytcheva, L, Schmid, S. M. & Heinrich, C. A. (2015). Tectonic, magmatic, and metallogenic cvolution of the Late Cretaceous arc in the Carpathian- Balkan orogen. 7Tecfonics, 34, 1813-1836. 6. Sokol, K., Prelević, D., Romer, R. L., Božović, M., van den Bogaard, P., Stefanova, E. ...

  • Simple 2D Gravity-density inversion for modeling of the sedimentary basin basement

    Ivana Vasiljević, Snežana Ignjatović, Dragana Đurić, (2019)

  • Reconstruction of the Tethys' waning in the Balkans: New insights from Upper Cretaceous igneous formations and zircon provenance data

    Dejan Prelević, Kristijan Sokol, Ana Mladenović, Violeta Gajić, Vladica Cvetković (2024)
    geochronology, zircon, provenance
    ... Reutter, M., Romer, R. L., Boev, B., Božović, M. ... & Schmid, S. M. (2017). The Late Cretaceous Klepa basalts in Macedonia (FYROM) - Constraints on the final stage of Tethys closure in the Balkans. Terra Nova, 29(3), 145-153. 2. Van Hinsbergen, D. J., Torsvik, T. H., Schmid, S. M., Matenco ...
    ... Matenco, L. C., Maffione, M., Vissers, R. L., Gurer, D., Spakman, W. (2020). Orogenic architecture ' of the Mediterranean region and kinematic reconstruction of ~its tectonic evolution since the Triassic, Gondwana Research, vol. &81, 79 – 229. 3. ...

  • Palinomorfe sa lokaliteta Gostuška reka (Stara planina)

    Ivan Rutović (2024)
    U radu su prikazani rezultati palinološkog istraživanja permsko-trijaskih sedimenata sa lokaliteta Gostuška reka. Palinološki kompleksi su detaljno analizirani, što je omogućilo morfološku, taksonomsku i paleoekološku identifikaciju palinomorfi. Istraživanje je pokazalo prisustvo velikog broja spora i polena golosemenica, dok je polen skrivenosemenica zastupljen u manjem procentu. Na osnovu paleoekoloških analiza, zaključeno je da je tokom formiranja sedimenata na lokalitetu vladala aridna klima, sa povremenim vlažnim fazama koje su omogućavale razvoj močvarne vegetacije.
    palinomorfe, paleoekologija, perm - trijas, Stara planina, Gostuška reka
    ... Milošaković RM., Urošević D., Dimitrijević M., Dolić D., Rakić M. O., Jovanović LJ., Maslarević LJ., Marković B., Divljan M., i Dordević M., 1977: Tumač za listove Pirot i Breznik. Zavod za geološke i geofizička istraživanja, Beograd, str. 1 – 47. Anđelković, M., 1978: Stratigrafija Jugoslavije: „Paleozoik ...
    ... Westf, Krefeld, str. 6 — 24. Tvančević B., Savić S., Sabovljević M., Niketić M., Zlatković B., Tomović G., Lakušić D., Ranđelović ., Ćetković 4., Pavićević D., Krpo–Četković J., Crnobrnja-Isailović J., Puzović S., Paunović M., Jovanović S., I Mijović D., 2007: Biodiverzitet Stare planine u Srbiji ...
    ... postepeno postaju sve širi i viši. Najniža tačka nalazi se u dolini Prlitskog potoka, dok se najviši vrhovi nalaze u Bugarskoj (Botev - 2376 m) i Srbiji (Miđor - 2169 m) (Lakšić i Ćetković, 2007). Legend MB 7avoj Lake [—_] Visok • Gauges Elevation m.a.s.l. 2169 |.. LO NE • Vilages —— River ...

  • Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?

    Стефан Петровић, Наталија Батоћанин (2020)
    У раду су приказани резултати испитивања серпентинисаних харцбургита Брђана (43°58'45.1" СГШ, 20°25'12.6" ИГД) и талкизираних харцбургита откривених у интервалу 429-559.8 m у истражној бушотини 330А/18 (44°07'33.2" СГШ, 20°30'28.5" ИГД) на Руднику. Узорци оба локалитета показују карактеристике резидуалних харцбургита из омотача, односно тектонита; лепидобластичне, бластозрнасте, или порфирокластичне структуре и масивне текстуре. Серпентинисани харцбургити и серпентинити Брђана су изграђени од серпентина, ретких реликата оливина и ортопироксена, акцесорног спинела, и веома ретког секундарног магнезита и магнетита. Најдоминантнији састојак (местимично гради и преко ...
    Рудник, Брђани, харцбургити, серпентинити, талк
    ... MALEŠEVIĆ, M., KLISIĆ, M., UROŠEVIĆ, M., TRIFUNOVIĆ, S., RADOVANOVIĆ, Z., BOŽANIĆ, M. (1970): Osnovna geološka karta 1:100.000, list Čačak K 34-5. Zavod za geološka i geofizička ispitivanja, Beograd BRKOVIĆ, T., MALEŠEVIĆ, M., UROŠEVIĆ, M., TRIFUNOVIĆ, S., RADOVANOVIĆ, Z., PAVLOVIĆ, Z., RAKIĆ, M. (1978): ...
    ... the most abundant lithology. It is cut by apophyses and a quartzlatite dike. Below this unit, at depth of 429 m appear ultrabasic rocks. The borehole terminated in these rocks at 560 m. Ultrabasic rocks are intensively metamorphosed- talcized displaying the downward increase in metamorphic degree ...
    ... резултати испитивања серпентинисаних харцбургита Брђана (43°58'45,1" СГШ, 20°25'12,6" ИГД) и талкизираних харцбургита откривених у интервалу 429-559,8 m у истражној бушотини 330А/18 (44°07'33,2" СГШ, 20°30'28,5" ИГД) на Руднику. Узорци оба локалитета показују карактеристике резидуалних харцбургита из ...

  • Definition of groundwater genesis and circulation conditions of the complex hydrogeological karst system Mlava–Belosavac–Belosavac-2 (eastern Serbia)

    Ljiljana Vasić, Saša Milanović, Zoran Stevanović, Laszlo Palcsu (2020)
    Geochemistry and Petrology

  • Underground loading-haulage equipment selection with application of topsis method with different weighting methods of criteria

    Vladimir Krivošić, Luka Crnogorac, Rade Tokalić (2024)
    The choice of adequate mining machines is one of the most complex problems in the underground exploitation of mineral raw materials. The weight of such a decision is reflected in the high prices of these machines and the occurrence of even greater costs during their use if their choice was wrongly conceived. There are numerous examples from practice in which such decisions were made solely on the basis of comparing the prices of machines, without considering any of the ...
    utovarno-transportna mehanizacija, izbor, TOPSIS, entropija, standardna devijacija, težina kriterijuma

  • Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling

    Branislav Petrović, Veljko Marinović, Zoran Stevanović (2023)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Geotechnical effects of municipal solid waste destruction with different compaction methods

    Jovana M Janković Pantić, Dragoslav R Rakić, Irena G Basarić Ikodinović, Tina D Đurić, Gordana Hadži-Niković (2022)
    Disposal of waste in municipal solid waste landfills is the only way of waste disposal in Serbia, with daily compaction and covering with soil material. Due to less space for the construction of new landfills, it is necessary to use their maximum capacity. Well-compacted municipal solid waste takes up less volume and enables safer storage, so it is useful to previously determine the compaction parameters in the laboratory: maximum dry unit weight (γdmax) and optimal water content (wopt). In ...
    komunalni otpad, zbijanje, Proktorov opit, malj sa šiljcima

  • Планирање – функција менаџмента пројекта минералне индустрије

    Жељко Вучић (2024)
    Просторно планирање је комплексан мултидисциплинаран процес утврђивања оптималног распореда људи, добара и делатности на одређеној територији ради његове оптималне употребе. Циљ просторног планирања је распоредити и најбоље користити садржаје у простору што је неизводљиво без детаљних анализа потенцијалних, штетних агенаса на целокупно подручје и његово становнисштво. Утицај рударства на окружење вишеструко се повећао након увођења технологије површинске експлоатације минералних сировина, али и свеукупног лошег дејства на животну средину. Под појом животне средине подразумевамо природне и радом створене вредности у ...
    просторно планирање, урбанистички план, кречњак, заштита животне средине, економски аспекти
    ... CTapocTH Kao Haj3HauajHHja J'II/ITOJ'IOIIIKaje)lI/IHI/IIla, H TIOBJIATHC HacJIarc 3arJ1HF5ĆHOT H JI411ODOBHTOT XyMYyca. HpeMa 36 KnacH(uKkaunju M. M. IIporobakoHoBa y Je»xHIITy H PbČTOBOJ HeHIOCpe}IHOJ OKOJIHHH MOTYy cč I/I3JIBOjI/ITI/I JiBa HH?;?KĆCEĆpPCKO-TĆCOJIOIHHIKA KOMIIJIČKCa CTCHa: – ...
    ... KapaKkTepHCTHKe CTEHC. BucuHa eraxxe oJl 15 M ycBojeHa je Ha OCHOBy pe3yimrraTa rpaKkTHuHe OHTHMM3aLNLUHJe NyOuHe Oymrepa ca nocrojeha OymrannıtaMa y TOKy Joca/amrıber pajla Ha CyCeJlHOM TIOBpIIHHCKOM KOmy. IIopey Tora, Ha BHcHHaMa cTaxKe OJ 15 M OOJba je KOHTpoJIa npomeca OymmeĐa, 3aTHM CBHX ...
    ... Bynteme H MHHHPpaMe Ha IHOBDpIHIMHCKOM KOY "Pamunhu I" apma he ce Ha eraxXaMa BHCHHC 15M, Ca TOJHIHIH5HM KamaMTETOM OJ 41 100.000 M'/rom. IlapaMerpa Gymema M MHHHpama 3jaOBOJbaBajy moTpeOHH TpaHyJOMCTDpHJCKH CacTaB MH3MHHHpaHOr MaTepHjaHMa, KanalTeT H TeXHHUKC KapakTepHcTHKe yTOBapHe MeXaHH3anuje ...