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Упит dcterms_subject_txt:moisture content

472 items

  • Phase relations and physical indicators of municipal waste from old landfills in Serbia

    Dragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić (2021)
    Due to certain similarities of municipal waste and soil, usually for the determination of basic parameters of physical state, laboratory and field tests which are common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different values of indicators of municipal waste physical state can be found in the literature. The basic reasons should be found in different definitions and methods that researchers use ...
    municipal waste, moisture content, unit weight, specific gravity, grain size distribution, porosityGeneral Computer Science
    ... municipal waste moisture can be found in the literature. As a rule, municipal waste moisture is the highest in the spring and autumn period (about 50%), because besides higher rainfalls and content of organic component is the highest. For the purpose of this paper, water content was determined ...
    ... at the same time it was mixed, samples were randomly selected for the moisture content determination. Obtained values were in interval of 31 — 39 %, except that in one sample moisture of 68 % was measured. Waste moisture from the landfill in Novi Sad was determined on small samples taken from ...
    ... this paper, the most common determination methods of basic parameters of municipal waste physical condition will be presented (moisture content, organic substances content, unit weight, specific gravity, porosity, grain size distribution), using standard geomechanical laboratory equipment. In addition ...

  • Određivanje zbijenosti starog komunalnog otpada

    Jovana Janković, Dragoslav Rakić, Irena Basarić Ikodinović, Tina Đurić (2021)
    Bez obzira na savremene tretmane komunalnog otpada u svetu, u Srbiji je i dalje najčešći vid odlaganja na komunalne deponije, pa zbijanje otpada predstavlja jednu od ključnih faza formiranja deponije. Na ovaj način znatno se smanjuje zapremina otpada, ubrzava proces degradacije i produžava radni vek deponije. Zbog toga su geotehničke karakteristike komunalnog otpada prilikom zbijanja, veoma bitne kako u fazi projektovanja tako i u fazi izgradnje deponije i optimizacije prostora. Tu se pre svega misli na maksimalnu suvu zapreminsku ...
    komunalni otpad, deponija, Proktorov opit, optimalna vlažnost, maksimalna suva zapreminska težina

  • Advantages and challenges in presenting mathematical content using EDX platform

    Marija Radojičić, Ivan Obradović, Ranka Stanković, Olivera Kitanović, Roberto Linzalone (2016)
    ... mathematical content. TPACK has been presented as a system which interconnects and intersects technology, pedagogy, and content knowledge [7]. According to this model technological knowledge has an important place in creating mathematical content. However, creating mathematical content usually requires ...
    ... 3: Solution of the task 4. PRESENTING MATHEMATICAL CONTENT USING EDX-BAEKTEL PLATFORM Over the last few years, mathematical content on the web is increasing, which means that production and exploitation of mathematical content using information technology (IT) is in progress [6]. Experts ...
    ... friendly editor and more possibilities in presenting mathematical content, there is also a need for engines which support searching of mathematical content. Currently, there a search engine for searching mathematical content within edX-BAEKTEL course does not exist. A prototype can be WikiMir ...

  • A Mathematical Learning Environment Based on Serbian Language Resources

    Radojičić Marija, Obradović Ivan, Stanković Ranka, Utvić Miloć, Kaplar Sebastijan (2018)
    In recent years, in line with ever growing usage of Information technology, the learning environments are changing. The amount of available learning materials in various forms has increased. These new environments demand comprehensive learning systems, which enable management of the learning corpus with special attention paid to relevant lexical resources. In this paper we present the concept of a Mathematical Learning Environment in Serbian (MLES), which is based on a corpus of mathematical materials and various lexical resources, enabling ...
    mathematical content, text processing, mathematical formulae
    ... a learning environment with the main goal of processing mathematical content in Serbian. The environment built around a corpus of mathematical content and provides mechanisms for processing and search of this content. It relies on existing lexical resources, morphological e-dictionaries and ...
    ... semantic search of mathematical content. A specific use of the system is mathematical support in solving real life problems from engineering practice. To that end complex issues had to be resolved, such as mathematical text analysis, processing of mathematical content in different formats, search ...
    ... mathematical content using Serbian lexical resources, issues that are further complicated due to rich Serbian morphology. This paper outlines the structure and solutions for MLES, as well as the main features of its already developed components. Keywords: mathematical content; text processing; ...

  • LRMI markup of OER content within the BAEKTEL project

    Ranka Stanković, Daniela Carlucci, Olivera Kitanović, Nikola Vulović, Bojan Zlatić (2015)
    ... and teachers quickly find relevant educational content via regular search engine. Within the BAETEL project we have developed a metadata portal as the metadata and content repository, as we felt the need for a better way to describe the content and thus increase web visibility for OER resources ...
    ... 2023-10-14 03:29:33 LRMI markup of OER content within the BAEKTEL project Ranka Stanković, Daniela Carlucci, Olivera Kitanović, Nikola Vulović, Bojan Zlatić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] LRMI markup of OER content within the BAEKTEL project | Ranka ...
    ... detailed microdata, the more “findable” our content and educational resources will be for teachers and students. The solution for LRMI implementation within BAEKTEL metadata portal outlined in this paper enables efficient search and browse of OER content and provides the infrastructure for successful ...

  • Distribution of major and trace elements in the Kovin lignite (Serbia)

    Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović (2019)
    geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive Xray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). ...
    General Earth and Planetary Sciences, General Environmental Science
    ... (wt.%) 20.09–33.73 25.90 3.26 17.06–40.42 27.05 5.00 21.79–41.09 27.38 6.09 War – moisture content, as received basis, %; Wan – analytical moisture content, %; Adb – ash content, dry basis, %; Sdb – total sulphur content, dry basis wt.%; Vdb – volatile mat- ter, dry basis wt.%; Q daf g – gross calorific ...
    ... 54.98 1.07 19.29 21.7 20.9 56/603 II 14.42 8.53 68.60 0.22 12.10 16.9 16.3 War – moisture content, as received basis, %; Wan – analytical moisture content, %; Adb – ash content, dry basis, %; Sdb – total sulphur content, dry basis wt.%; Vdb – volatile matter, dry basis wt.%; Q daf g – gross calorific ...
    ... The Kovin lignite is characterized by its high moisture content, medium to high ash yield, high volatile matter, higher sulphur content and relatively low gross and net calorific value (Table 2; Table S­II of the Supplementary material). The total moisture of most samples is variable from 34.57–52.90% ...

  • Groundwater gravitational circulation of Karst Veliko Vrelo and Malo Vrelo springs by isotope and the noble gas method: case study of the Beljanica Massif

    Ljiljana Vasić, Laszlo Palcsu, Huang Fen (2019)
    Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry

  • Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)

    Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović (2020)
    Geochemistry and Petrology

  • A Tel Platform Blending Academic And Entrepreneurial Knowledge

    Ivan Obradović, Ranka Stanković, Jelena Prodanović, Olivera Kitanović (2013)
    ... namely: • Tools - software to support the development, use, reuse and delivery of learning content, including content and learning management systems, as well as content development tools; • Learning content - learning resources, both academic and entrepreneurial, and reference resources, where ...
    ... property licenses to promote open publishing of materials, and best practice design principles. The content management system that BAEKTEL relies on is FMG CMS, an in-house Content Management System (CMS) developed by the University of Belgrade, Faculty of Mining and Geology (FMG) as ...
    ... attendance; and measure results for optimized outcomes (http://wwwimages.adobe.com/www.adobe.com/content/d am/Adobe/en/products/adobeconnect/pdfs/91030579_Con nect_Overview_ue.pdf). Within content development tools are several commercial tools, and LeXimir, a multipurpose tool developed by ...

  • Using Metadata For Content Indexing Within An OER Network

    Ranka Stanković, Olivera Kitanović, Ivan Obradović, Roberto Linzalone, Giovanni Schiuma, Daniela Carlucci (2014)
    ... Using Metadata For Content Indexing Within An OER Network Ranka Stanković, Olivera Kitanović, Ivan Obradović, Roberto Linzalone, Giovanni Schiuma, Daniela Carlucci Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Using Metadata For Content Indexing Within An ...
    ... responsible for producing the content of the resource. Description is the abstract, a concise description of resources.Contributor is a person, organization, or service responsible for making contributions to the resource. Type identifies the nature of the content of the resource, such as"best ...
    ... 49 The Fifth International Conference on e-Learning (eLearning-2014), 22-23 September 2014, Belgrade, Serbia USING METADATA FOR CONTENT INDEXING WITHIN AN OER NETWORK University of Belgrade, Faculty of Mining and Geology, ranka.stankovic@rgf.bg.ac.rs, olivera.kitanovic@rgf.bg.ac ...

  • Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers

    Milan Bogdanović, Snežana Bogdanović, Dragoslav Rakić, Irena Basarić Ikodinović (2024)
    This paper presents a dynamic California Bearing Ratio (CBRd) device that can be used on a prepared pavement foundation layer to obtain a certain parameter of the tested material in the laboratory and in situ in a direct and fast way. For the selected natural material (gravel), it is shown that the laboratory CBRd can be used to estimate the compaction and bearing capacity, because it correlates well with the parameters of the standard and modifed Proctor compaction tests. ...
    korelacija parametara, donji slojevi saobraćajnica, laboratorijska i terenska ispitivanja, dinamički kalifornijski indeks nosivosti CBRd
    ... depending on the water content for differ- ent compaction energies. Regarding the impact of water content on the formation of the gravelly material samples subjected to CBR,, testing, it was observed that CBR,, reached the highest value when the samples were compacted with water content close to w„„. ...
    ... sample formation increased, CBRy „ decreased to 2.0% of the water content for formation, and then increased again as the water content increased from 2.0% to approximately 9.7% (SP) or 8.8% (MP), approaching w„ . Increasing the water content for formation above w„„ resulted in a decreasing trend for ...
    ... deformation E,, are with- in the wide range of 90-200 MN/m?, which indicates the diversity of the material's local bearing character- istics and moisture. The relationship between the dynamic modulus of deformation E„,and the CBR., index is described by a linear function. The correlation dependence ...

  • Definition of Circulation Conditions and Groundwater Genesis of the Complex Krupaja Hydrogeological Karst System (Eastern Serbia)

    Ljiljana Vasić, Saša Milanović, Tina Dašić (2023)
    Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment, Geography, Planning and Development, Building and Construction
    ... ŽH/ŠžHe radioactive isotope content tests in Krupaja Spring groundwater. Content of 3 ; 3H/ŠHe Age Apparent Age Radioactive Isotopes HOIJ (H—) 1 Sigma (Years) (Years) ; . 5.64 0.17 Krupaja Spring, 57 0.3 26.1 0.7 Table 4. Results of ŽH radioactive isotope content test in thermal spring, and B-1 ...
    ... 54 0.29 Krupaja thermal spring—Winter 2 26.6 7.14 543 1.13 1.6 The content of stable isotope &15C decreases with circulation depth, indicating a higher groundwater age and longer contact with the host rock. The carbon content at the Krupaja Spring, ranges from —8.20 to —10.31%o, also indicating ...
    ... surface water, but water that has had a long residence time within the system, lowering the stable carbon isotope content by up to —5.32%o. Table 2. Stable isotope groundwater content results from the Krupaja Spring, Thermal spring, and Borehole B-1. Location &DCp;c(V-PDB) % &D(V-SMOW) % &1O(V-SMOW) ...

  • Mikroelementi u kvartarnim sedimentima i lignitu Kostolačko-kovinskog ugljonosnog basena, istočna Srbija – odabrani primeri

    Bogoljub Vučković, Biljana Radovanović, Dragana Životić (2022)
    Sadržaj, distribucija i način pojavljivanja elemenata u tragovima (mikroelemenata), posebno potencijalno toksičnih i radioaktivnih elemenata u uglju, su od velikog značaja, posebno ako se koriste kao gorivo u termoelektranama (TE). Na osnovu sistematski prikupljenih podataka o elementima u tragovima u uglju, zemljištu i sedimentima, moguće je utvrditi stepen zagađenosti vazduha, zemljišta, vode, kao i negativan uticaj na zdravlje ljudi. Eksploatacija i istraživanje lignita u Kostolcu i Kovinu traje više od jednog veka, dok se sagorevanje lignita sa površinskih kopa ...
    mikroelementi, sedimenti, lignit, Kostolac

  • A bilingual digital library for academic and entrepreneurial knowledge management

    Ranka Stanković, Cvetana Krstev, Biljana Lazić, Dalibor Vorkapić (2015)
    A generic knowledge management process of organization, storage and retrieval of knowledge can suitably be fitted in a digital library. In the digital and knowledge age digital libraries can be used in knowledge management to handle intellectual assets and support knowledge creation. A multilingual digital library either stores content in more than one language or provides multilingual query access to monolingual content. In Serbia 18 of 308 scientific journals regularly published are bi-lingual, with papers simultaneously being in English ...
    Knowledge management, Digital library, Multilingualism, Language Resources, Terminology
    ... creation. A multilingual digital library either stores content in more than one language or provides multilingual query access to 1 monolingual content. In Serbia 18 of 308 scientific journals regularly ...
    ... The approach to the development of the presented digital library was to store its content in a NoSQL-database, with a web tool to enable the use of rich information in the stored text collections. The library content originates from various bilingual sources, with all documents aligned at the sentence ...
    ... ally and semantically. Thus it offers a novel access to digital content to its users. In addition to that, Bibliša presents an original approach to successful combining of several components: Lexical resources, Library content, Web services and Web interface. Practical implications– Digital ...

  • 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

  • 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)
    ... The content of vitrinite group macerals increases from top to bottom of the Main coal seam which is associated with a notable decrease of liptinite and mineral matter (MM). Contents of collotelinite, collodetrinite and corpogelinite increase downward through the Main seam, whereas content of vi ...
    ... 13(18)-neohopene series, suggest in addition to ferns, contribution of chemoautotrophic bacteria. Content of total n-alkanes increases through the seam, Which is associated with notable decrease of content of short-chain (С15-Сг0) and increase of long-chain (Cz6-Ca3) homologues. The obtained results ...
    ... ds and non-hopanoid triterpenoids notably decreases downward through the seam indicating lower conifer input. Typical feature of coal is high content of fernene derivatives, which decreases through the seam. The stable carbon isotopic composition of fernene derivatives implies that they mostly ...

  • An aproach to Implementation of blended learning in a university setting

    Ivan Obradović, Ranka Stanković, Olivera Kitanović, Jelena Prodanović (2011)
    ... often with additional multimedia content. The lesson content is basically what students need to prepare for the oral exam. Figure 4: FMG Moodle Course web page Figure 5 shows a part of one such lesson, which has the goal not only to present the content of the classroom lecture, but ...
    ... specific content, individual grades of students and grades at the course level. Picture 7 shows the weekly statistics of access for the course Informatics I grouped by different course content: Lessons, Resources and Assignments. Figure 7: Weekly access to various course content Another ...
    ... Besides the administrator, the two most important are the teacher, who can edit and modify the course content and monitor student activities, and the student, who can access the course content, perform different activities proposed, and view his/her own results. Moodle is a flexible and modular ...

  • The Potential of Biomarkers to Distinguish Lower and Middle Miocene Lignites from the Coal-Mining District of Lusatia

    I. Kojic, J. Kus, D. Zivotic, K. Stojanovic (2021)
    ... s between Middle and Lower Miocene coals are expressed by higher dehydroicetexane content, Paq index, the tetracyclic/tricyclic diterpanes ratio and non-hopanoid triterpenoids content, as well as by lower content of total hopenes (particularly those with double bond at 13(18)-position) and fernenes ...
    ... Seam Horizon or its equivalent of Piskowitz (Lower Miocene) and Welzow-Süd (Middle Miocene) open-cast mines (Kus et al., 2020). The contents of moisture, ash, sulphur, and total organic carbon (TOC) were determined. The biomarker compositions were evaluated using gas chromatography-mass spectrometry ...
    ... with ash contents < 11.5 % indicate relatively stable water-level during peat formation and moderate supply of mineral matter. Total sulphur content ranges from 0.67 to 0.80% and from 0.90 to 1.24 % in Lower and Middle Miocene samples, respectively, implying peatification in the freshwater environment ...

  • Effect of pulp solid phase content alteration on “Lisina” phosphate flotation process

    Radulović Dragan, Vučinić Dušica, Branislav Ivošević, Zorica Lopičić (2012)

  • Mineralogical and physicochemical characterization of bentonite clay from Svrljig, Serbia

    Maja Milošević, Bojan Kostić (2022)
    ... sample consists mostly of a fraction <1 μm (56.1%) with a 9.5% <2 μm, representing a total clay content (65.5%). Coarse grain fraction (>20 μm) is present in a total of 10.5%. When the clay, silt and sand content were plotted on the triangular diagram, it was concluded that the sample is sandy clay with ...
    ... FeO, 6.34% CaO and 1.17% MgO, with a lower content of MnO (0.70%), Na2O (0.08%), TiO2 (0.35%) and BaO (0.03%). Higher values of the SiO2/Al2O3 mass ratios (2.97) together with LOI of 16%, CEC (84.5 mmol/100g) and SSA (661.8 m2*g–1) indicate a higher content of montmorillonite. Infrared spectrophotometry ...
    ... ometry determined that the composition corresponds to a high content of montmoril- lonite clay with peaks at 3620 cm–1, 3420 cm–1, 1632 cm–1 and 1018 cm–1. The peaks at 1444 cm–1 and 873 cm–1 correspond to carbonate minerals, although in a very small quantity. X-ray diffraction indicates that the ...