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Упит dcterms_subject_txt:water quality

403 items

  • Prioritization of strategic measures for strengthening the security of supply of the Serbian natural gas sector

    Boban Pavlović, Dejan Ivezić, Marija Živković (2020)
    To strengthen the security of supply of the Serbian gas sector, it is necessary to analyze the impact of planned strategic measures. The analysis involves the identification of the most influential threats to the security of natural gas supply and prioritization of the strategic measures for overcoming the consequences of threats. The proposed methodology is based on Fuzzy Analytic Hierarchy Process. The obtained weights for the identified threats and strategic measures are formed according to experts' judgments. The results ...
    Sigurnost snabdevanja, Donošenje odluka, Snabdevanje prirodnim gasom, Fazi AHP, Energetski indikatori

  • Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining

    Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović (2019)
    Analitički hijererhijski proces (AHP), dozeri, eksploatacija uglja, površinski kopovi
    ... class of strong dozers, and the information on the manufacturer, type and number are stated in Table 1. During further analysis, on the basis of the quality of the available information, Liebherr PR-752/754, Caterpillar D8R, Dressta TD25M, Shantui SD32W dozers were taken into consideration. Table 1. Dozers ...
    ... etc. The AHP method finds its role in the field of mining as well [10,22–27]. The main advantage of this method is ease of use, followed by the quality of output data. It relies on the theory of the relative weight determination of the factors in decision-making. It is based on the measurements made ...
    ... sustainable agriculture using analytic hierarchy process (AHP). Ecol. Indic. 2016, 60, 644–654. [CrossRef] 19. Ecer, F. A hybrid banking websites quality evaluation model using AHP and COPRAS-G: A Turkey case. Technol. Econ. Dev. Econ. 2014, 20, 758–782. [CrossRef] 20. Mohammed, S.M.Z.; Mohd, A.R.; ...

  • Природни потенцијал минералних вода Србије - Natural potential of mineral waters in Serbia

    Оливера Крунић (2021)
    минералне воде

  • Evaluation And Perspectives Of Underground Coal Mines In Serbia

    Vladimir Milisavljević, Milena Lekić, Ivica Ristović, Vojin Čokorilo, Aleksandar Cvjetić (2017)
    ... such as gas, water, dust and potential for gas outbursts and spontaneous combustion (criteria C3); • Potential for mechanization, such as seam inclination, seam thickness, floor and roof conditions, block size, coal clearance facilities and supply facilities (criteria C4); • Quality of coal and ...

  • Production information system of the Pljevlja coal mine

    Božo Kolonja, Ranka Stanković, Filip Vuković (2018)

  • English for Geology Students. 2

    Lidija Beko (2023)
    Engleski jezik
    ... wa- ters flowing in opposite directions; synonyms: watershed, drainage basin, drainage system fluctuation noun a frequent change ofa certain quality from one state to another glaciation noun used to refer to the geological processes of a glacier, i.e.its formation, move- ment, and recession ...
    ... MRVNVA . |, . R. . ... JN NEKOJ. .Pt . NNNA MV/oveployuliyoog . 20ooo000u0o d0ggD05aaa0D000000o0000goe Reading Comprehension..........i c "PHERMAT: WATER lyy bg • + 985 + „As acl ŽM + +) -}+ • • MOMO -JMI Vocabulary.(.. ... d.. R. O . aMa - -IOI MON Reading Comprehension..........i e Grammar,Spot ...
    ... through Myths............. . Diamond, the Supreme Gemstone. .........caa Table of contents • Unit5 • SURFACE WATERS AND GLACIERS Partl SUREFACE WATER....... ttt ttt 122 Vocabulary....n.MOORe. ... o - W ... .. NEO 125 Reading Comprehension.......... iii 126 Part,2 RBGLAGIERSL. .. a e ddv do M ...

  • Novi pristup proučavanju tekstura minerala značajnih za istraživanje rudnih ležišta

    Aleksandar Pačevski (2022)
    ... ISBN-978-86-86053-23-7 Napomena: Autori su odgovorni za sadržaj i kvalitet svojih saopštenja Note: 7he authors are responsible for the content and quality oftheir contributions Organizacioni odbor / Organizing Committee Vladimir Simić (predsednik), Danica Srećković-Batoćanin (potpredsednik), Dragoljub ...

  • 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
    ... Characteristic Parameters of Wells Related With Its Aging, 1 st Danube - Black Sea Regional Young Water Professionals Conference „Innovations in the Field of Water Supply, Sanitation and Water Quality“, 14-15 June 2011, Bucharest, Romania, p. 20-26 77. Мајкић-Дурсун Б., Поповић Љ., Миолски Д., ...
    ... Earth Sciences 64(1):119-131 72. Larson T.E. and R. V. Skold (1958): Laboratory Studies Relating Mineral Quality of Water to Corrosion of Steel and Cast Iron, 1958 Illinois State Water Survey, Champaign, IL pp. [43] — 46: ill. ISWS C-71 73. Ласкарев В. (1951): О стратиграфији квартарних наслага ...
    ... ronmental interpretations, Sedimentology 44:759–765 92. McMahon, P.B and F.H Chapelle (2008): Redox processes and water quality of selected principal aquifer systems, Ground Water, Vol.46, No.2, p 259-271 93. Обрадовић В., Мајкић-Дурсун Б., Петковић А., Димкић М. (2012): Прилог познавању природе ...

  • Filter rules for soil and geosynthetics

    Dragoslav Rakic, Irena Basaric Ikodinovic, Milenko Ljubojev (2021)
    Štetni efekti izazvani strujanjem vode kroz različite građevine (brane, nasipi i sl.) uspešno se rešavaju ugradnjom različitih filterskih slojeva. Osnovne funkcije filterskih slojeva su brza evakuacija vode uz sprečavanje unutrašnje erozije i iznošenje sitnih čestica tla. Ovi filterski slojevi najčešće se grade od krupnozrnih materijala (pesak, šljunak, kameni agregati), ali se pored prirodnih materijala sve više koriste i veštački geosintetički materijali. U radu su prikazana osnovna filtarska pravila koja treba ispoštovati da bi se izvelo uspešno projektovanje različitih filtracionih ...
    filter, baza, granulometrijski sastav, vodopropustljivosti, stabilnosti, začepljenje, izdržljivost

  • Оцјена водопропусности понорске зоне Шуковићу (Цернићко поље) помоћу Лижоновог теста

    Петар Војновић, Саша Милановић, Љиљана Васић (2022)
    One of the specificities of reservoirs forming in highly karstified terrains is reflected in the wide range of unknowns, specifically during reservoir formation, filling and operation. Unfortunately, despite complex research, many reservoirs constructed in karst terrains have problems with water losses from the reservoir to other aquifers due to ponor and ponor zones which are a common in the karst of Eastern Herzegovina. One of such zones is Šuković ponor located in the southern part of the Cerničko polje ...
    карст, Шуковића понор, Церничко поље, водопропусност, Лижонов тест

  • Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja

    Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Filip Miletić, Ivan Janković (2019)
    Hidraulični bageri primenjuju se u različitim oblastima privrede a najzastupljeniji su u građevinarstvu i rudarstvu. Na površinskim kopovima sa kontinualnim sistemima, klasifikuju kao pomoćna mehanizacija a na površinskim kopovima sa diskontinualnim sistemima, kao osnovna mehanizacija. Kako je u oba slučaja njihova primena neizostavna, važno je izvršiti adekvatnu analizu postojećih podataka, u cilju optimizacije izbora tipa hidrauličnog bagera u odnosu na uslove rada datog površinskog kopa. U radu su opisane različite višekriterijumske metode koje su korišćene za analizu hidrauličnih bagera. ...
    višekriterijumske metode, površinski kop uglja, pomoćna mehanizacija, hidraulični bager
    ... methods used for the analysis of hydraulic excavators are described. All advantages and disadvantages of these methods are presented, as well as the quality of output information which can affect the future purchasing decisions of this machinery. Key words: multi-criteria methods, open-cast coal mine ...

  • Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering

    Josip Išek, Lazar Kaluđerović, Nikola Vuković, Maja Milošević, Ivana Vukašinović, Zorica Tomić (2020)
    γ-spectrometry, brushite, chukhrovite, phosphogypsum, radionuclides, recrystallization
    ... Gazette (2014) Rulebook on Cement Quality. Official Gazette of the Republic of Serbia No. 44. National Assembly of the Republic of Serbia, Belgrade, Serbia, 11 pp. (in Serbian). RS Official Gazette (2018) Rulebook on Limits of Radionuclides Content in Drinking: Water, Foodstuffs, Feeding Stuffs, Medicines ...
    ... all of these components are essentially insoluble in water, in contrast to calcium sulfate, the recrystalliza- tion procedure was employed to improve gypsum purity, radio- activity level and colour. "The retrograde solubility of gypsum in water (slowly increasing, from 0 to 40%C, with a subsequent ...
    ... criteria recommended by Mikheev (1957) and the Joint Committee for Powder Diffraction Standards (JCPDS). Whiteness index In order to compare the quality of the samples for utilization in the construction industry, the whiteness index (WI) values of raw phosphogypsum and recrystallized gypsum were ...

  • Managing mining project documentation using human language technology

    Aleksandra Tomašević, Ranka Stanković, Miloš Utvić, Ivan Obradović, Božo Kolonja (2018)
    Purpose: This paper aims to develop a system, which would enable efficient management and exploitation of documentation in electronic form, related to mining projects, with information retrieval and information extraction (IE) features, using various language resources and natural language processing. Design/methodology/approach: The system is designed to integrate textual, lexical, semantic and terminological resources, enabling advanced document search and extraction of information. These resources are integrated with a set of Web services and applications, for different user profiles and use-cases. Findings: The ...
    Digital libraries, Information retrieval, Data mining, Human language technologies, Project documentation

  • Characterization and Environmental Evaluation of Recycled Aggregates from Construction and Demolition Waste in Belgrade City Area (Serbia)

    Filip Abramović, Miroslav Popović, Vladimir Simić, Vesna Matović, Radmila Šerović (2024)
    General Materials Science

  • High-resolution sequence stratigraphy of carbonates - theory and examples

    Jelena Stefanović, Dejan Radivojević (2020)
    Циљ рада је да кроз теоријски аспект и примере примене представи секвенциону стратиграфију високе резолуције карбонатних седимената. У том смислу први део се односи на појам и значење високе резолуције у секвенционој стратиграфији. Од временских и просторних скала које одговарају сеизмичким профилима у последњих двадесет година метода је нашла примену на скалама које одговарају бушотинским подацима или изданцима. Као најпогоднији седименти за овај тип истраживања су се показали карбонати јер су осетљиви на еустатичке промене, а основе секвенционе стратиграфије ...
    изданак, системска група, јура-креда, карбонатна платформа, плитководна средина
    ... карбоната, минералног састава, дубине и потенцијала раста могу се разликовати три типа „карбонатних фабрика“: Т (tropical и top-of-the-water-column), C (cool water и controlled precipitation) и М (mud-mount, micrite и microbes) тип. Појам карбонатне платформе обухвата све појаве дебелих маса пл ...
    ... Jurassic-Cretaceous carbonates deposited on Tethyan platforms. Key words: outcrop, systems tract, Jurassic-Cretaceous, carbonate platform, shallow-water environment 1 Универзитет у Београду, Рударско-геолошки факултет, Каменичка 6, Београд; ...
    ... BONVALLET, L., ARNAUD-VANNEAU, A., ARNAUD, H., ADATTE, T., SPANGENBERG, J., STEIN, M., GODET, A. & FÖLLMI, K. 2019. Evolution of the Urgonian shallow-water carbonate platform on the Helvetic shelf during the late Early Cretaceous. Sedimentary Geology. 387. 10. pp.18-56. BOVER-ARNAL, T., SALAS, R. ...

  • Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics

    Maja Milošević, Predrag Dabić, Sabina Kovač, Lazar Kaluđerović, Mihovil Logar (2019)
    keramika, glina, Dobrodo, mineralogija, sirovina, Srbija

  • Results of Recent Monitoring Activities on Landslide Umka, Belgrade, Serbia—IPL 181

    Biljana Abolmasov, Uroš Đurić, Jovan Popović, Marko Pejić, Mileva Samardžić Petrović, Nenad Brodić (2021)
    Klizišta, Monitoring, GNSS, Geodetska osmatranja, UAV snimci, PSInSAR
    ... titemporal and spatial surface products for landslide moni- toring, primarily Digital Elevation Models (DEMs). Assuming the same procedure and same data quality, DEMs can be collected sequentially and compared. Change detec- tion is used to reveal differences of the resulting DEMs, which are primarily caused ...
    ... com points were generated from ascending and 5465 sparse points from descending datasets. Fine tuning and filtering by location and coherence quality were also performed. The total of 71 stable radar targets from ascending and 84 radar targets from descending dataset were selected for detailed ...
    ... (2017). Fig. 1 Locations of Umka landslide area, GNSS stations, AGROS network stations, Belgrade Main meteorological station, and Beljin Sava river water level (hydrological) station Results of Recent Monitoring Activities on Landslide … 227 UAV Imaging and Mapping Using of small Unmanned Aerial ...

  • Integrative GHG Assessment in Oil and Gas Industry

    Aleksandar Mirković, Marija Živković, Stevan Đenadić, Darja Lubarda, Chinedu Anyanwa (2023)
    Reducing greenhouse gas emissions is one of the main targets of national strategies in European countries. As a main contributor to emissions, the energy sector is recognized as the most promising to apply measures and actions aimed to decrease GHG emissions. The Oil and Gas industry as a significant contributor to global greenhouse gas emissions is facing a growing need for estimating, mitigating, and reducing the impact of their operations on the atmosphere to stay competitive in a newly ...
    energetska tranzicija, gasovi staklene baste, industrija, nafta i gas
    ... emission of non-CO-» gases. In addition to the quantity of fuel combusted, tier | methodology also considers average emission factors. However, the quality of emission factors differs between gases. For CO», the emission factor depends on the carbon content and hcating value of the fuel and is not ...
    ... growing concerns over climate change and thce nced to mitigate its effects. As a result, O&G companies are investing more cffort in improving the quality of 55 thcir data and measuremcents, particularly in relation to GHG emissions. Until recently, the gas composition of flared gas and fuel gas ...

  • 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
    ... operational activities are detrimental to the quality of air, water, and soil. Environmental system management based on subjective opinions of individuals suggests a disregard of the principles of sustainable development and reduction of environmental quality. Implementation of the ISO 14000 standards ...
    ... Miller, N.L., Heinzer, T., Hidalgo, H., Dracup, J.A., Model integration for assessing future hydroclimate impacts on water resources, agricultural production and environmental quality in the San Joaquin Basin, California, Environmental Modelling & Software 19, 2004, pp. 305–316 18. Alcamo, J., Doll ...
    ... August 2002, Volume 39, Issue 1-2, pp. 125-134 8. Wilkinson G., Dale B., Integrated management systems: a model based on total quality approach, Managing Service Quality, Vol.11, Number 5, 2001., pp. 318-330 9. Wilkinson G., Dale B., An examination of the ISO 9001:2000 standard and its influence ...

  • Coupling of artificial intelligence methods in the development of hybrid intelligent systems

    Ranka Stanković, Ivan Obradović, Nikola Lilić (2001)
    In this paper we present an approach which couples various artificial intelligence (AI) methods in the solution of complex problems that cannot adequately be solved by a single AI method. We argue that the resulting, hybrid intelligent systems (HIS) can be successfully implemented with the use of available AI software libraries. Different coupling methods are analyzed and a classification of hybrid systems based on the chosen method is given. Two case studies of hybrid systems used in mining engineering ...
    hibridni inteligentni sistemi, spregnuti sistemi, metode veštačke inteligencije, rudarske primene veštačke inteligencije
    ... modeling to attain a reliable estimation of air pollution distribution. The relations between GA, NN and CFD are largely influenced by the scale and quality of data as well as the required analysis and estimation results. The distribution of pollutant imission is further being analyzed by an expert ...