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Упит dcterms_subject_txt:Standards for LRs

1390 items

  • 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
    ... positives was observed, thus explaining the decreased precision of the given strategy. This result is not surprising, as it concurs with current standards in the field of classification of medical records (Caĺi et al., 2017). A major problem with concept-oriented information retrieval in the biomedical ...
    ... of previ- ously classified medically related texts, which are the bases for the task, all of the signifi- cant terms are located and replaced with tax- onomical references from the MeSH ontology. Extracted references are used for the classifi- cation within the ontology using a rather sim- ple algorithm ...
    ... presented in this paper was done according to the med- ical subjects from the MeSH ontology, version for 2016.2 Ontology can be queried via web,3 where you can get predefined queries, the ones for classes and predicates being aong them, or where other data can be obtained with the new SPARQL queries ...

  • Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications

    Vesna Lesić, Emo Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov (2018)
    The Vardar-Tethyan mega-suture between the Eurasian and Adria (Gondwana) margins comprises remnants of oceanic lithosphere of Neotethys and distal parts of the adjacent continental margins including unconformable Late Cretaceous sedimentary cover and Cenozoic igneous rocks of post-obduction age. This study provides kinematic constraints for displacements and rotations affecting the Serbian part of the West Vardar and Jadar-Kopaonik units after the closure of the Neotethyan (= Sava) Ocean. The targets of the paleomagnetic research were Late Cretaceous sediments representing an ...
    Paleomagnetism, Clockwise rotation, Dinarides, West Vardar zone
    ... Complex, D— Danubicum. Age constraints for the rotations are as follows: post- Early Miocene for area 1 (this study); post-Oligocene for area 2 (this study); post-Oligocene to pre-Middle Miocene for area FG a; post- Middle Miocene to pre-Pliocene for area FG b (data for FG are from Lesić et al. 2007 and ...
    ... composition. The AMS was measured for all sites. The degree of anisotropy varied between 1.014 and 1.046 for most of them, higher values were only observed for sites 12 and 16 (1.095 and 1.125, respectively). The orientations of the principal susceptibility axes are random for sites 9–12 and 15. Concerning ...
    ... than that for the Rudnik Mts. area. Inclination flattening due to magnetic anisotropy could account for the flattening in the granodi- orites (AMS degree varies between 1.06–1.61 for the localities yielding statistically well-defined paleomagnetic Table 4 The overall mean directions for the Cretaceous ...

  • Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)

    Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik (2023)
    The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies of crystallography and structural defects are scarce. For clarification, we investigated a series of natural arsenopyrite crystals from the polymetallic Pb-Zn-(±Cu,Ag,Au,Sb,Bi,W) Šumadija-Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among them, samples from the Drenjak gold mineralisation showed near-stoichiometric FeAsS composition and were further investigated by conventional and high-resolution transmission electron microscopy methods. TEM revealed abundant planar crystallographic defects and epitaxial surface oxide layer ...
    Inorganic Chemistry, Condensed Matter Physics,General Materials Science, General Chemical Engineering, crystal structure, FeAsS, oxidation, TEM, XRPD
    ... sin0, using, an approximation for small angles 20 = ~A/d = R/L, with the final reduction d = AL/R [21]. Compared to the reported literature values, the calculated cell parameters for the investigated samples are summarised in Table 2. Using, calibration standards, we significantly improved the ...
    ... Instruments PLC, Abingdon, UK), using internal standards with detection limit ~0.1 wt.%. Simultaneously, the homogeneity and possible zoning were analysed by backscattered electron (BSE) micrographs (Figure 1c,d). 2.2. X-ray Powder Diffraction (XNRPD) For X-ray Powder Diffraction (XKRPD) analysis ...
    ... volume criterion for a 5 nm thick surface oxide layer formed upon ~10 min air exposure is already achieved for 1.5 am grains. As the standard XRPD sample is normally ground to a ~50 um particle size, the 5 nm surface oxide presents 0.3 vol.%, while 30 nm thick oxide accounts for 1.8 vol.%, which ...

  • Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material

    Borislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić (2022)
    Pyrophyllite, with the chemical formula Al2Si4O10(OH)2, is a naturally occurring and abundant van der Waals mineral belonging to the group of phyllosilicates. It is very soft, layered crystal used for sculpting and an excellent electrical and thermal insulator aimed for the operation at high pressure and temperature. Here, for the first time, two-dimensional (2D) pyrophyllite obtained by both mechanical and liquid phase exfoliation is presented and investigated at the nanoscale. The layered structure provides low friction coefficient of around ...
    Atomic force microscopy, Insulating properties, Nanofriction and wear, Natural two dimensional materials, Phyllosilicates, Pyrophyllite

  • Application of the Fuzzy Model in the Evaluation and Selection of Hydraulic Excavators on Open-Pit Lignite Mine

    Stevan Đenadić, Miloš Tanasijević, Vladimir Milisavljević, Dragan Ignjatović, Predrag Jovančić (2021)
    The production of lignite in large open-pit mines is mainly performed with continuously operating equipment, where bucket-wheel excavators, bucket-chain excavators, belt conveyors, and spreaders are the basic machines. Smaller machines, usually of discontinuous operating nature, are commonly categorized as auxiliary machines. This paper presents the research related to the analysis of auxiliary machine parameters with the case study for a hydraulic excavator. The purpose of the analysis was to develop a model of rating quality of service of the ...
    Fuzzy theory, hydraulic excavator, selection, quality of service, asset management

  • The external aggregation Newton's method for solving nonlinear equations and applications

    Marija Paunović, Dejan Ćebić, Nebojša Ralević (2020)
    Њутнов метод, агрегациона функција, ред конвергенције

  • A proposal for the landslide damage questionnaire in suburban areas

    Uroš Đurić, Biljana Abolmasov, Miloš S. Marjanović, Sanja Jocković, Miloš D. Marjanović (2022)
    Landslides are one of the most often natural disasters that have an extensive impact on society including loss of life, destruction of infrastructure and properties, damage to land and loss of natural resources. Landslide losses can significantly vary and they depend on a variety of different criteria such as the size and type of landslide, lithological setting of terrain, the terrain slope gradient, the quality of materials used for construction, and the construction typology. Damage from landslides is usually ...
    istraživanja, objekti, klizišta, rizik, procena

  • Laboratory testing of fly ash

    Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić (2016)
    Fly ash is one of the most common waste materials created by burning of coal. It is composed of smaller particles, consisting mainly of aluminosilicate glass, mullite and quartz, which are collected by electrostatic separators (filter) of gaseous products arising from the combustion of coal. This paper presents the pozzolanic properties, mechanical properties, chemical and mineral composition of fly ash obtained in the combustion process in a power plant Nikola Tesla A (PPNT A) with the addition of a ...
    chemical composition, fly ash, mechanical properties, mineral properties, pozzolanic properties, X-ray diffraction
    ... n was obtained by testing samples in accordance with the standards SRPS B.H8.359 369 [4-14] – Methods of test for coal and coke - Determination of the chemical composition of the ash, the basic provisions, and other related standards for the determination of some oxides that are provided standard ...
    ... was tested in laboratory for concrete and binders in "Highway Institute A. D.". Chemical analysis was performed on samples with volume of 10 g for "Series 1" (S1) and 10 g for "Series 2" (S2). In period from 1983 to 2004, testing of chemical composition was done for 59 samples and results are ...
    ... All prepared samples were stored for a while before the failure. The test was performed with three different series of samples: - samples cured in a wet chamber for 7 days, - samples cured in a wet chamber for 28 days, - samples cured in a wet chamber for 112 days. The uniaxila strength is ...

  • Arsenic in tape waters of the south Pannonian basin (Serbia) and arsenic risk assessment

    Petar Papić, Marina Ćuk, Maja Todorović, Jana Stojković, Bojan Hajdin, Nebojša Atanacković, Dušan Polomčić (2012)
    ... 15% of the total, is used for drinking water supply in rural settle- ments. More than 600,000 inhabitants of Banat and Bačka (or about 40% of the population of Vojvodina) are exposed to drinking water whose arsenic and ammonia concentra- tions exceed drinking water standards. Arsenic concentra- tions ...
    ... • to a depth of 250 m, which meet drinking water standards. Depths below 250 m exhibited elevated total mineralization [19]. Arsenic Risk Assessment by the Drinking Water Pathway The end result of the assessment of groundwaters used for drinking water supply in the South Pannonian Basin should ...
    ... M. L., MOORE L., HAQUE R., STEINMAUS C., CHUNG J., HERNANDEZ A., LOP- IPERO P, Cancer Risk from Arsenic in Drinking Water. Implications for Drinking Water Standards, Elsevier Science, pp. 191-199, 1999. 40. UJEVIĆ BOŠNJAK M., CAPAK K., JAZBEC A., CASIOT C., SIPOS L., POLJAK V., DADIĆ Ž., Hydrochemical ...

  • Overwiew of In-Pit Crushing & Conveying Technology in Open Pit Mines

    Ali Nasirinezhad, Dejan Stevanović, Dragan Ignjatović, Petar Marković (2021)
    The conditions under which contemporary surface mining operations is carried out obviously becoming increasingly complex. In such complex conditions, the optimization of haulage systems as the technological phase with the largest share in the total operating costs, is very important from the aspect of achieving profitability of the mining project. In a large number of cases, the application of traditional haulage systems with trucks (as the most dominant type of haulage in open pit mines) does not lead to ...
    In Pit Crushing and Conveying, IPCC, open pit mining, haulage, optimization, costs saving

  • Groundwater resources for drinking water supply in Serbia´s Southeast Pannonian basin

    Dušan Polomčić, Bojan Hajdin, Marina Ćuk, Petar Papić, Zoran Stevanović (2014)
    menadžment podzemnih voda, monitoring, kvalitet podzemnih voda, bilans, baza podataka

  • Actual contamination of the Danube and Sava rivers at Belgrade (2013)

    Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer (2014)
    rečni sistemi, stanje zagađenja, organski zagađivači, teški metali, skrining analize, non-target screening
    ... acid; the flow rate was 1 mL min-1 and the wavelength for thiamethoxam was 247 nm, for imidacloprid 250 nm and for clothianidin 260 nm. The retention time for thiamethoxam was 5.7 min, for imidacloprid 8.5 min and for clothianidin 7.4 min. For quantification purposes, calibration curves in the range ...
    ... on the state of pollution but might also act as a base for further well adapted monitoring measures for the Sava and Danube Rivers. However, as a more relevant and superior outcome, it has been illustrated how different chemical analyses for preselected pollutants could lead to totally different ...
    ... ecosystems, which have become increasing serious problems for decades. Riverine contamin- ants are derived from both anthropogenic and biogenic sources.1–4 Anthropo- genic inorganic, organic and organometallic pollutants are emitted into rivers by for example runoffs and leaching from agricultural fields ...

  • Advantages and Disadvantages of a Parallel and Zigzag Method of Acquisition in Walking Mode in Magnetometric Archeological Research

    Mirko Petković, Vesna Cvetkov, Branislav Sretenović (2014)
    магнетометријска испитивања, цик-цак и паралелна аквизиција у ходајућем моду, линеарне аномалије, археологија
    ... Mining and Geology, Departman for geophysics, Serbia mirkopetkovic.90@gmail.com VESNA CVETKOV University of Belgrade, Faculty of Mining and Geology, Departman for geophysics, Serbia BRANISLAV SRETENOVIĆ University of Belgrade, Faculty of Mining and Geology, Departman for geophysics, Serbia 902.3:621 ...
    ... materials are the basic prerequisite for the application of geophysical methods to be successful. The use of iron-based materials during human history allows for the successful application of magnetometry, which is now one of the leading choices of geophysical methods for archaeologi- cal reconnaissance ...
    ... ey as for Fig 1. 97 Archaeology and Science 10 (2014)Petković et al - Advantages and Disadvantages of a Parallel...(93-110) Fig. 3a Contour map of a vertical gradient of TMI in N-S orientation. Key as for Fig 1. Fig. 3b Contour map of a vertical gradient of TMI in N-S orientation. Key as for Fig ...

  • Mesozoic carbonate rocks in Serbia used as dimension stone

    Vesna Matović, Tijana Vojnović Ćalić (2016)
    The building industry in Serbia uses, to a great extent, imported natural stone for architectural purposes. The significance of local deposits, particularly limestones, is not adequately perceived despite the country’s abundance of these valuable resources. Therefore, this study focuses on Serbia’s Mesozoic carbonate rocks, specifically on the deposits of four selected quarries: Klisura, Skrzut, Struganik, and Tisnica. The quality and prospects of the application of these limestones has not yet been the subject of a detailed, comprehensive investigation. Therefore, ...
    Ukrasni kamen, Mezozoik, Krečnjak, Srbija, Petrografija, Fizičko-mehanička svojstva
    ... withdrawn SRPS B.B3.200 (1994) used for reference in this research. Therefore, the examined rocks are suitable for use as dimensional stone, as natural stone slabs for architectural cladding and paving for exterior and interior use. With the actual national standards for natural stone products, designers ...
    ... resistance) were examined for 52 collected samples. The laboratory tests were per- formed according to current national standards at tWO equally credible laboratories: the Laboratory of the High- way Institute (Laboratory for Stones and Stone Aggregates) and the Institute for Testing: of Materials-IMS ...
    ... their usability. For the appropriate use of natural stone products, it is advisable to consult suitable technical requirements. The alignment of Serbian national standards with the standards of the European Union is in progress. The requirements concerning natural stone slabs for cladding and ...

  • Calculation for the system of wells for protecting the open pit lignite mine Radljevo-North from groundwaters

    Šubaranović Tomislav, Polomčić Dušan, Petković Vladimir (2016)

  • Application of rough set theory for choosing optimal location for flotation tailings dump

    Štirbanović Zoran, Miljanović Igor, Marković Zoran (2013)

  • Poloxamer-based curcumin solid dispersions for ex tempore preparation of supersaturated solutions intended for antimicrobial photodynamic therapy

    Vukićević Milica, Bee Hegge Anne, Vulić Predrag, Hjort Tonnesen Hanne (2015)

  • Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and reduced distances at “Nepričava“ open pit mine

    Suzana Lutovac, Sanja Bajić, Marina Ravilić, Radmila Gaćina (2015)
    ... (8) By the replacement of values for K from (8) in the equation (5) we obtain the equation: 1 1 n R v v R        (9) From the equation (9), for R = R1 there is obtained v = v1 for any n, in our case n > 0. For R = R1, i = 2, 3, ..., N, from the equation ...
    ... conditions of 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 ...
    ... blasting, the determination of the soil oscillation velocity is enabled for each blast operation in advance, thus blasting is, as regards seismic effect, under control, which gives an opportunity to plan the magnitude of shock waves for each future blast operation (Trajković et al. 2005). In this manner ...

  • Influence of Post-Synthesis Treatments on the Properties of Brushite/Monetite Powders

    Željko Radovanović, Lidija Radovanović, Aleksandar Kremenović, Đorđe Janaćković, Rada Petrović (2022)
    Dicalcium phosphate (DP) materials, of which brushite and monetite were the most known, have been intensively studied for several decades because of excellent resorptive and osteoconductive properties that can satisfy the requirements needed for various medical applications, such as bone cements, coatings of metallic implants and bone grafts ...

  • Ventex: an expert system for mine ventilation systems analysis

    Nikola Lilić, Ranka Stanković, Ivan Obradović (1997)
    roblems relating to mine ventilation systems analysis are usually of a very complex nature. They involve the estimation of numerous interdependent parameters pertaining to the network status, ventilation status, ventilation system stability, air current losses, climate conditions, gas state, fire risk and dangerous dust pollution risk. The solution to these problems relies, to a great extent, on numerical methods. With the development of computer technology these methods were incorporated as numerical routes in software packages, such as the mine ...
    expert system, mine ventilation