Претрага

Упит dcterms_subject_txt:Planning and Development,Aquatic Science,Biochemistry,Water Science and Technology

2250 items

  • Risk assessment of flooded equipment revitalization on opencast coal mine Tamnava-West Field

    Natalija Pavlović, Dragan Ignjatović, Stevan Đenadić, Tomislav Šubaranović, Ivica Jakovljević (2021)
    Renewable Energy, Sustainability and the Environment

  • Investigation of quantitative indicators of anisotropy based on longitudinal elastic waves propagation velocities with uncertainty

    Miloš Gligorić, Jelena Majstorović, Suzana Lutovac (2018)
    ... ratio, bulk density and compressive strength in order to create an dynamic model of anisotropy investigation. Acknowledgement This paper is a part of the Projects ТR 36014 and ТR 33029 under the auspices of the Ministry of Education, Science and Technological Development, Republic of Serbia. ...
    ... resistance, elasticity, deformability, water permeability and heat conductivity. Rocks often exhibit a macroscopic anisotropy of mechanical properties (Petružálek et al., 2008). Ultrasonic laboratory experiments on cores show evidence for both layering and fracture related anisotropy in different ...
    ... special isotropic and anisotropic sample and for each special direction, respectively, is calculated by Equations (4), (5), (6), (7), (8), (9), (10) and (11) based on arithmetic operations (2) and (3). Anisotropy coefficient for each special isotropic and anisotropic sample and for each special ...

  • Претрага корпуса заснована на употреби екстерних лексичких ресурса путем веб-сервиса

    Милош Утвић, Ранка Станковић, Александра Томашевић, Михаило Шкорић, Биљана Лазић (2019)
    У раду се разматра хибридни приступ претрази корпуса, илустрован на примеру алатки OCWB и NoSketch Engine, примењених на специјални корпус из области рударства (РудКор) и Корпус савременог српског језика (СрпКор). Разматрани приступ комбинује постојеће могућности алатки OCWB и NoSketch Engine, које своју претрагу заснивају на лингвистичкој анотацији корпуса, са новим могућностима претраге у виду консултовања екстерних језичких ресурса (морфолошки електронски речници српског језика и лексичка база података Српски ворднет). Хибридни приступ је реализован надоградњом вебсучеља која поменуте алатке користе ...
    корпус, рударство, претраживање информација, проширивање упита, лексички ресурси, лексичке релације
    ... Gordana Pavlović-Lažetić, Duško Vitas and Ivan Obradović, “Using Textual and Lexical Resources in Developing Ser- bian Wordnet”, Romanian Journal of Information Science and Technology, 7/1–2, 147–161. Крстев 2008: Cvetana Krstev, Processing of Serbian — Automata, Texts and Elec- tronic Dictionaries. Belgrade: ...
    ... 2011: Stefan Evert and Andrew Hardie, „Twenty-first Century Cor- pus Workbench: Updating a Query Architecture for the New Millennium”, In: Proceedings of the Corpus Linguistics 2011 Conference, Birmingham, University of Birmingham. Еверт 2019: Stefan Evert and The OCWB Development Team, CQP Query Lan- ...
    ... v1_final.pdf Томашевић и др. 2018: Aleksandra Tomašević, Ranka Stanković, Miloš Utvić, Ivan Obradović and Božo Kolonja, “Managing Mining Project Documen- tation Using Human Language Technology”, The Electronic Library, 36/6, 993–1009, DOI: 10.1108/EL-11-2017-0239, https:/doi.org/10.1108/EL-11- 2017-0239 ...

  • Size–strain line-broadening analysis of anatase/brookite (TiO<sub>2</sub>)-based nanocomposites with carbon (C): XRPD and Raman spectroscopic analysis

    Aleksandar Kremenović, Mirjana Grujić-Brojčin, Nataša Tomić, Vladimir Lazović, Danica Bajuk-Bogdanović, Jugoslav Krstić, Maja Šćepanović (2022)
    A size-strain line-broadening analysis of the XRPD patterns and Raman spectra for two anatase/brookite (TiO2)-based nanocomposites with carbon (C) was carried out and the results compared with those of a similar sample free of carbon. The crystal structures and microstructures of anatase and brookite, as well as their relative abundance ratio, have been refined from XRPD data by the Rietveld method (the low amount of carbon is neglected). The XRPD size-strain analysis resulted in reliable structure and microstructure results ...
    Materials Chemistry, Metals and Alloys, Atomic and Molecular Physics, Optics, Electronic, Optical and Magnetic Materials

  • Self-Engineering: Possibilities for Maintenance Operations in the Mining Machines Industry

    Steven Manders, Milorad Pantelić, Vladimir Milisavljević, Alberto Martinetti (2021)
    Self-engineering is a relatively new branch of knowledge that aims to understand how systems could “autonomously” re-configure or repair themselves without the intervention of the operators. A direct field of application is within the maintenance spectrum. Having systems or machines capable of self-detecting or even self-repairing could represent a game-changer, in capital asset fields such as the mining industry in particular. This paper aims to investigate the possible benefits and challenges of self-engineering / self-maintenance concerning mining machines, specifically bucket-wheel ...
    self-engineering, self-maintenance, maintenance operations, mining industry, bucket-wheel excavator, gearbox revitalization

  • U-Pb zircon geochronology of the Paleogene – Neogene volcanism in the NW Anatolia: Its implications for the Late Mesozoic-Cenozoic geodynamic evolution of the Aegean

    E. Yalçın Ersoy, Cüneyt Akal, Ş. Can Genç, Osman Candan, Martin R. Palmer, Dejan Prelević, İbrahim Uysal, Regina Mertz-Kraus (2017)
    The northern Aegean region was shaped by subduction, obduction, collision, and post-collisional extension processes. Two areas in this region, the Rhodope-Thrace-Biga Peninsula to the west and Armutlu-Almacık-Nallıhan (the Central Sakarya) to the east, are characterized by extensive Eocene to Miocene post-collisional magmatic associations. We suggest that comparison of the Cenozoic magmatic events of these two regions may provide insights into the Late Mesozoic to Cenozoic tectonic evolution of the Aegean. With this aim, we present an improved Cenozoic stratigraphy ...

  • Solid state synthesis of extra phase-pure Li4Ti5O12 spinel

    Ivana Veljković, Dejan Poleti, Ljiljana Karanović, Miodrag Zdujić, Goran Branković (2011)
    Фазно чист спинел Li4Ti5O12 са величином честица мањом од 500 nm добијен је реакцијом у чврстом стању из стехиометријске смеше наноанатаса (ТiО2) и Li2CO3 која је претходно активирана механохемијским поступком. Реакција у чврстом стању у потпуности се завршава за само 4 часа на температури од 800 ºC. Уз помоћ XRPD, SEM и TG/DSC анализе испитане су структурне и микроструктурне карактеристике добијеног спинела, механизам реакције између анатаса и Li2CO3, као и термичка стабилност Li4Ti5O12. Реакција започиње разлагањем Li2CO3 на температурама ...
    дифракција рендгенских зрака, механизам реакције, термичка стабилност, Li4Ti5O12, спинел, фазно чист узорак

  • Projekcija razvoja osmatračke mreže podzemnih voda u Republici Srbiji

    Petar Dokmanović, Zoran Stevanović, Saša Milanović, Bojan Hajdin, Vesna Ristić-Vakanjac, Veljko Marinović (2016)
    ... PROJECTION OF GROUND WATER MONITORING NETWORK DEVELOPMENT IN THE REPUBLIC OF SERBIA by Petar DOKMANOVIĆ, Zoran STEVANOVIĆ, Saša MILANOVIĆ, Bojan HAJDIN, Vesna RISTIĆ-VAKANJAC, Veljko MARINOVIĆ University of Belgrade, Faculty of Mining and Geology, Department ...
    ... monitoring (levels, flow rates and quality), followed by continuous update of direct GW users data base as well as development of the network 2)Gradual abandoning of „excessive“ monitoring wells of RHMS and SEPA 3)Development of methodology for evaluation of pressure and pollution risk of punctual/ ...
    ... untapped springs i.e. new monitoring wells, in „uncovered“ GW bodies (GWB) 3/Defining of number and rough locations of monitoring points, conditioned by economical development, in phases. The following graphic and technical bases are used: 1/Official delineation of GWB in RS 2/Actual GW level monitoring ...

  • Keyword Extraction from Parallel Abstracts of Scientific Publications

    Slobodan Beliga, Olivera Kitanović, Ranka Stanković, Sanda Martinčić-Ipšić (2017)
    ... prepared at the Human Language Technology Group at the University of Belgrade [30], and (2) a Serbian lemmatizer. For lemmatization, we use Serbian morphological elec- tronic dictionaries and grammars developed within the University of Bel- grade Human Language Technology Group [17]. Morphological electronic ...
    ... the evaluation with and without the out-of-vocabulary (OOV) keywords, showing that the results are promising even for the included OOV keywords. In future work, we are planning to expand the keyword extraction from abstracts to whole scientific articles from the domain of mining and geology which are ...
    ... first time, as well as a new bilingual keyword extraction dataset. The main contributions of this paper are: (1) the development of bilingual (Serbian-English) keyword extraction dataset, and (2) the comparative study of the effectiveness of the SBKE method for keyword extraction on parallel texts written ...

  • Tehno-ekonomska analiza varijanti sistema odvodnjavanja površinskog kopa Drmno od podzemnih voda do kraja eksploatacije

    Tomislav Šubaranović, Dušan Polomčić, Vladimir Pavlović (2018)
    Odvodnjavanje površinskog kopa Drmno od podzemnih voda je jedan od najznačajnijih podsistema u procesu eksploatacije u veoma zavodnjenoj radnoj sredini Kostolačkog basena uglja. Već od 2006. godine, Inovirani dugoročni program razvoja eksploatacije uglja predviđa izradu ekrana, pored zadržavanja postojećih standardnih metoda odvodnjavanja od podzemnih voda linijama bunara. Iako je kasnijim Glavnim rudarskim projektom, takođe, bila predviđena izrada ekrana, njegova realizacija nije započela. Na osnovu realnog sagledavanja postojeće projektne dokumentacije, početak izrade ekrana se predviđa od 2023. godine. ...
    odvodnjavanje, bunari, ekran, dinamika, finansiranje.

  • Human factor risk management procedures applied in the case of open pit mine

    Snežana Kirin, Aleksandar Sedmak, Wei Li, Miodrag Brzaković, Igor Miljanović, Ana Petrović, Simon Sedmak (2021)
    Risk management aims to provide a controlled work environment to ensure the safe operation of the high-risk systems. It is a dynamic process which work in a continual state of change. The issue of human factor risk and rules and regulations in open pit mine is a main focus of this paper in order to develop predictive models of behavior of workers in relation to compliance with the procedures and rules. Presented survey was conducted in open pit coal ...
    Upravljanje rizikom, ljudski faktor, bager sa kašikom, metod konačnih elemenata

  • Petrographical and organic geochemical study of the subbituminous coal from the Dubrava field, Aleksinac basin (Serbia)

    Željana Sekulić, Ksenija Stojanović, Achim Bechtel, Reinhard Sachsenhofer, Miomir Petrović, Ivan Kojić, Dragana Životić (2019)
    ... n (С15-Сг0) and increase of long-chain (Cz6-Ca3) homologues. The obtained results suggest lowering of the water table during the formation of the Main coal seam. This change resulted in lesser inundation and deposition of MM associated with smaller input of bacterial and algal OM and higher contribution ...
    ... 4: JP PEU Resavico, Design апа Development Office - Belgrade, Makedonska 33, 11000 Belgrade, Serbia 5; University of Belgrade, Innovation Center of the Faculty of Chemistry, Studentski trg 12-16, 11000 Belgrade, Serbia 6; University of Belgrade, Faculty of Mining and Geology, Đušina 7, 11000 Belgrade ...
    ... parts of the Main coal seam and coal layers within and under lower oil shale package. Since vitrinite reflectance (%Rr, 0.44 + 0.03 - 0.46 + 0.02) and biomarker compositions indicate the same maturity stage of organic matter (OM), corresponding to late diagenesis and early catagenesis, petrographic ...

  • Trans-Lithospheric Diapirism as a Possible Mechanism for Ophiolite Emplacement?

    Nikola Stanković, Taras Gerya, Vladica Cvetković, Vesna Cvetkov (2024)

  • New approach to correlation of hydrocarbon reservoirs in sandstone layers of the "Mokrin" field"

    Saša Ivanišević, Dejan Radivojević (2018)
    геофизички каротаж, депозиционе средине, лежишта угљоводоника, миоцен, пост‐ рифтнo, секвенциона стратиграфија
    ... bon reserves. Furthermore, such an approach to  interpretation  of geological and geophysical data  contributes  to  risk  reduction  in exploration, and also  to  the more  efficient planning of reservoir development and production.       ЛИТЕРАТУРА / REFERENCES    Ivanišević, S., Radivojević, D. ...
    ... t, delta and  shore  plains  are  predominantly made  of  sandstones with  siltstone  and  clay  intercalations  and  local  occurrences of coal. Kikinda Formation sediments are deposited in shallow‐water environments and are  recognized by progradation and aggradation series (Figure 1a and 1b). Kik ...
    ... of the shape and characteristics of curves of gamma ray  (GR) and specific resistivity  (RT)  logs.   Funnel  shape of  the GR  log points  to  the  reduction  in  the basin water  level and  the  increase  in  the  level of  depositional energy, which leads to the reduction in the content of shale and incr ...

  • Chemo-probe into the mantle origin of the NW Anatolia Eocene to Miocene volcanic rocks: Implications for the role of, crustal accretion, subduction, slab roll-back and slab break-off processes in genesis of post-collisional magmatism

    E. Yalçın Ersoy, Martin R. Palmer, Ş. Can Genç, Dejan Prelević, Cüneyt Akal, İbrahim Uysal (2017)
    Post-collisional Cenozoic magmatic activity in NW Anatolia produced widespread volcanism across the region. In the Biga Peninsula, in the west, medium-K calc-alkaline to ultra-K rocks with orogenic geochemical signature were emplaced at ~43–15 Ma (Biga orogenic volcanic rocks; BOVR). Volcanic activity in the Central Sakarya region, to the east, is mainly restricted to ~53–38Ma, but also continued during the Early Miocene with small basaltic extrusives (Sakarya orogenic volcanic rocks; SOVR). This study presents a new set of geochemical data ...

  • 100th Anniversary of the Carpathian-Balkan Geological Association (CBGA)

    Ljupko Rundić (2022)
    Током 22. конгреса Карпатско-балканске геолошке асоцијације (KБГА) одржаног у Пловдиву, Бугарска (7–11. Септембар, 2022) обележена je стогодишњица оснивања KБГА. Резолуција о оснивању „Карпатске геолошке асоцијације“ усвојена је на 13. Међународног геолошком конгресу у Бриселу, 19. августа 1922.године. То је био резултат ранијих напора и иницијативе Р. Кетнера (Чехословачка), Ј. Новака (Пољска), Г. Мунтеану Мургочија (Румунија) и В. Петковића (Југославија). Касније, после Другог светског рата, асоцијација мења назив у „Карпатско-балканска геолошка асоцијација (КБГА) “. Током протеклих 100 година, КБГА је ...
    Карпатско-балканскa геолошка асоцијација (КБГА), 1922–2022.

  • Electrokinetic properties of hydroxyapatite under flotation conditions

    Vučinić Dušica, Radulović Dragan, Deušić Slaven (2010)

  • Introduction to special section: Characterization of hydrocarbon and geothermal resource potential and carbon sequestration opportunities of the Pannonian Basin

    Balázs Németh, Gábor Tari, Gábor Bada, Dejan Radivojević, Bruno Tomljenovic, Csaba Krézsek (2018)
    нафтна геологија, геотермална енергија, Панонски басен

  • Comparing the performance of different landslide susceptibility models in ROC space

    Marjanović Miloš (2013)

  • The Late Devonian contraction along the Precaspian Basin north margin: Transpressional range building in the intracratonic domain

    Novak Novčić, Marinko Toljić (2023)
    The evolution of intraplate sedimentary basins located in the vicinity of an active convergent plate boundary is often controlled by the collisional dynamics of the adjacent orogen. The transfer of compression from the orogen to the platform's interior results in the formation of complex structural geometry and kinematics that often reactivate older crustal faults, focus far-field stresses and control the evolution of associated sedimentary basins. One place where this localisation can be optimally understood is the Precaspian Basin, situated ...
    Intrakratonske deformacije, transpresija, kosa kompresija, krustalni rasedi, intrakratonski transfer stresa, kontrakcioni blokovi