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Упит dcterms_subject_txt:water quality

436 items

  • 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

  • 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

  • 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

  • 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

  • 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
    ... documents (RS, 2018a), (RS, 2017), (MME, 2016), (AERS, 2018a,b) are mutually comparable and can be defined as: • Enabling safe, reliable and quality energy supply, • Improving the technological development of the energy sector in Serbia. In parts of the documents related to the natural gas ...
    ... risks. The purpose of identified measures was basically to facilitate in mitigation or elimination of risks, in order to ensure safe, efficient, and quality supply and support in the long term. According to Regulation (EU) 2017/1938 concerning measures for safeguarding the security of gas supply, the ...
    ... official Serbian legislative and strategic (plan- ning) documents (RS, 2018a), (RS, 2017), (AERS, 2018a,b) that refer to ensuring safe, efficient and quality natural gas supply in Serbia, indicate that the existing and proposed measures can be considered as a type of measures primarily, but not exclusively ...

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

    Оливера Крунић (2021)
    минералне воде
    ... using geospatial methods and water quality index (WQI) in Northern Ethiopia. Applied Water Science, 2018, 8:82. [3] Alemu, M. M., Desta F. Y., 2017. Irrigation water quality of River Kulfo and its implication in irrigated agriculture, South West Ethiopia. Int J Water Resour Environ Eng 9:127–132 ...
    ... Introducing a water quality index for assessing water for irrigation purposes: A case study of the Ghezel Ozan River. Science of ¦e Total Environment, Volume 589, 2017, p.p. 107‒116. [13] Pivić, R., Jošić, D., Dinić, Z., Maksimović, J., Stanojković-Sebić, A. Assessment of water quality for irrigation ...
    ... re (roads), supply and distribution of water to plots; fair distribution of water, preservation of water quality; existence of an advisory service (soil-conservation professionals)). Limitations are the fragmentation of agricultural land, insu·cient water capacity, shallow, sloping, and/or saline ...

  • 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 ...

  • Evaluation And Perspectives Of Underground Coal Mines In Serbia

    Vladimir Milisavljević, Milena Lekić, Ivica Ristović, Vojin Čokorilo, Aleksandar Cvjetić (2017)

  • Production information system of the Pljevlja coal mine

    Božo Kolonja, Ranka Stanković, Filip Vuković (2018)
    ... which show separate, analytical, detailed data about every recorded events and summary, aggregated, synthetic data deduced from the previous. High-quality, clear and well-devised reports play an important role in the process of the production monitoring and should act as a support in decision-making ...

  • 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

  • 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 ...

  • 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

  • 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

  • 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
    ... extensive documentation and data, so an efficient system for managing mining documentation becomes an important issue with impact on productivity and quality of work and the speed and timeliness of making good business decisions in the mining industry. When it comes to documentation in Serbian, a specific ...
    ... Boolean and exact match. Keyword search returns results sorted by relevance. For example, if a compound term “upravljanje kvalitetom uglja” (coal quality management) is searched, the result will first be a list of documents containing the entire compound keyword, followed by documents containing constituent ...
    ... locations. In such cases, electronic data management allows easy access to data, their search and modification, resulting in more precise and better-quality decisions and more efficient work. This paper outlines an approach to the development of a system for project documentation management, based on HLT ...

  • 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 ...

  • 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
    ... traditional pottery-making. The clay is mined from pits that are opened afresh each year. To reach layers of high-quality clay, an overburden layer ∼3 m thick must be removed because the surface water drains in the clay pit, rendering it useless until the dry sum- mer period of the year. The deposit is mostly ...
    ... Specific surface area and CEC The CEC is defined as the amount of exchangeable cations, and it represents important information in evaluating the quality of clays (Burrafato & Miano, 1993). The CEC of the samples varied between 12 and 52 mmol 100 g–1, while specific surface area (SSA) ranges from 94 ...
    ... samples show distinct endother- mic peaks (Fig. 7). The first endothermic event between 100 and 200°C corresponds to the loss of adsorbed and interlayer water (Greene-Kelly, 1957; Földvári, 2011). In samples 3 and 4, this band is broad and covers a region between 50 and 300°C, indicat- ing the presence of ...

  • 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

  • Потреба за израдом биланса и оценом расположивих резерви подземних вода Републике Србије

    Зоран Стевановић, Вељко Мариновић, Бранислав Петровић (2021)
    Природне карактеристике Србије, просторна дистрибуција ресурса водe и њихових корисника, као и међусобна интеракција коришћења, заштите вода, као и заштите од вода, условиле су да се подземне воде на читавој територији морају посматрати интегрално, јединствено, комплексно и рационално. Међутим, тренутно је у Републици Србији могуће дефинисати само одлике појединих издани и/или изворишта услед непостојања довољних података за свеобухватну анализу стања ресурса. За оцену притиска на квантитет ресурса подземних вода, што је обавеза према Оквирној директиви о водама ЕУ (ОДВ) ...
    подземни водни ресурси, биланс, расположиве резерве, одрживо управљање, Република Србија

  • 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