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Упит dcterms_subject_txt:secondary compression index

260 items

  • A WebGIS Decision Support System for Management of Abandoned Mines

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2016)
    ... CI/RI, where CI represents the consistency index and RI the random consistency index. The consistency index is calculated as: CI = (λmax ´ n)/n ´ 1, where λmax represents the largest matrix eigenvalue, and n the number of factors [17]. The random consistency index RI is a table value empirically defined ...
    ... symbolization of spatial data. The panel for search provides for locating abandoned mines that match the user query. Users can search by abandoned mines index, name of the object or settlement or district where abandoned mines are located. Search results are displayed in a pop-up window on the map. For each ...
    ... within the group of factors, and the third the final weight coefficient. The sum of all final weights is equal to one. – − − − − − The consistency index is calculated as: CI = (λ − − 1, where λ Figure 6. The weight coefficients. Graphical illustration of the impact of individual factors in the overall ...

  • Towards a Mining Equipment Ontology

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... and [7]. The simplest form of terminological resources is an index, which is basically a list of terms usually arranged in alphabetical order. A glossary is slightly more complex, as definitions are added to the terms within the index. Glossaries can be monolingual, bilingual or multilingual, and ...
    ... Weak semantic description Thesaurus A taxonomy expanded to include additional semantic relationships Index a list of terms specific to a certain field Glossary an index containing definitions of terms Taxonomy A hierarchical organization of terms RudOnto Figure 1. Semantic ...

  • Knowledge and Rule-Based Diacritic Restoration in Serbian

    Cvetana Krstev, Ranka Stanković, Duško Vitas (2018)
    In this paper we present a procedure for the restoration of diacritics in Serbian texts written using the degraded Latin alphabet. The procedure relies on the comprehensive lexical resources for Serbian: the morphological electronic dictionaries, the Corpus of Contemporary Serbian and local grammars. Dictionaries are used to identify possible candidates for the restoration, while the dataobtainedfromSrpKorandlocalgrammarsassistsinmakingadecisionbetween several candidates in cases of ambiguity. The evaluation results reveal that,dependingonthetext,accuracyrangesfrom95.03%to99.36%,whilethe precision (average 98.93%) is always higher than the recall (average 94.94%).
    diacritic restoration, morphological dictionary, corpus, word n-grams, local grammars
    ... population, Popu- lation aging, Net migration rate, Decline in birth rate, Demographic prognosis, etc.; • Forming the conceptual index of the document. Conceptual index of a document consist of con- cepts found in the document and their assigned weights. The weight of a concept accounts for the 4 ...
    ... document, including ”Depopulation”, ”Population aging”, ”Fertility decline”; • The results of document processing, including the word index, the conceptual index, the calculated categories, etc. are loaded into an information-analytical system. 6. Generating of Russian WordNet from RuThes-lite As ...

  • Ocena kvaliteta i mogućnost korišćenja podzemnih voda za piće i navodnjavanje u slivu reke Ralje

    Sunčica Ninković, Nebojša Atanacković, Sava Magazinović, Jakov Andrijašević, Mihailo Šević (2016)
    Analiza mogućnosti korišćenja podzemnih voda za potrebe vodosnabdevanje stanovništva kao i za navodnjavanje vršena je na prostoru sliva reke Ralje. Istražni prostor veličine oko 280 km2 je obuhvatio veći deo sliva reke Ralje koji se administrativno nalaze na području grada Beograda. Podzemne vode su glavni izvor za vodosnabdevanje i navodnjavanje u ovom području. Seoska naselja nemaju urađenu komunalnu infrastrukturu pa predstavljaju značajan faktor za degradaciju kvaliteta podzemnih voda na ovom području. U periodu 2012-2014 godine prikupljeno je 100 uzorka ...
    kvalitet voda, hidrohemijski parametri, navodnjavanje, zagađenje, reka Ralja

  • Split-Desktop software for the analysis of fragment size distribution of blasted rock mass

    Milanka Negovanović, Lazar Kričak, Stefan Milanović, Jovan Marković, Nikola Simić, Snežana Ignjatović (2023)
    Drobljenje stena je najvažniji pokazatelj u proceni efekata miniranja pri proizvodnom miniranju u površinskoj eksploataciji. Stepen drobljenja stena ima veliki uticaj na efikasnost daljih operacija utovara, transporta, drobljenja i mlevenja. Optimalno drobljenje stena pri proizvodnom miniranju utiče na smanjenje ukupnih troškova proizvodnje. Stoga je pouzdana procena veličine drobljenja odminirane stenske mase veoma važno pitanje, ne samo u operacijama miniranja, već i u rudarskoj proizvodnji. Za predviđanje distribucije veličine komada odminirane stenske mase postoje različiti empirijski modeli. KUZ-RAM model omogućava ...
    Split-Desktop softver, drobljenje stena, miniranje, analiza, digitalna obrada fotografija

  • Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine

    Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović (2019)
    Availability is one of the most used terms in maintainability engineering. This concept is used to denote: The quality of service of an engineering system, i.e., machines, weak points’ analysis, asset management, as well as making decisions in the process of life cycle management. Availability is an overall indicator and contains partial indicators that are oriented towards reliability, maintenance, and logistical support. Availability presents a variable value and changes in time and space. Usually, availability is shown as the ...
    raspoloživost, fazi teorija, AHP višekriterijumska analiza, eksperska ocena, buldozer
    ... 27]. The consistency condition is that the value of the random consistency index Energies 2019, 12, 4044 9 of 18 CR (22) is less than 10%. A mathematical consistency check is performed by computing the consistency index (18), CI = (λmax − n) (n− 1) , (18) where λmax is the weighted mean of c ...
    ... j=1 (ai j ·Wi) Wi , f or i = R, M, S. (20) CR = CI RI , (21) The random consistency index RI depends on the number of objects analyzed n, shown in Table 2. Table 2. The value of the random consistency index (RI) [28]. n 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 RI 0.00 0.00 0.52 0.89 1.11 1.25 1.35 ...
    ... 250 = 0.5401 In the next step, it is necessary to check the consistency of the decision-maker, which is done by calculating the random consistency index CR (21). The consistency check of machine B1-N is given as a specific example: λ1 = (a11·WRB1−N)+(a12·WMB1−N)+(a13·WSB1−N) WRB1−N = (1·0.1630)+(0 ...

  • Evaluation And Perspectives Of Underground Coal Mines In Serbia

    Vladimir Milisavljević, Milena Lekić, Ivica Ristović, Vojin Čokorilo, Aleksandar Cvjetić (2017)
    ... is called the Consistency Ratio. The consistency ratio is a measure of how much variation is allowed and must be less than 10%. Finally, random index (RI) is given in Table 6. Table 4. Pairwise comparison matrix of criteria C1 C2 C3 C4 C5 C6 C7 C1 1 2 3 1 1 2 4 C2 0.5 1 0.5 0.5 0.5 0.5 0 ...
    ... 0385 0.1071 0.1034 0.1000 0.0800 0.0911 Sum 1 1 1 1 1 1 1 1 Lambda ( λ) = 7.355393; CI = 0.059232; RI = 1.32; CR = 0.044873; Table 6. Random index n 3 4 5 6 7 8 9 10 RI 0.58 0.9 1.12 1.24 1.32 1.41 1.49 1.51 Rank of the underground coal mines operated by PCUCE obtained after completion ...

  • Fizičko-hemijsko raspadanje krečnjaka ugrađenih u objekte Beogradske tvrđave i mogućnost konsolidacije

    Maja Z. Franković (2022)
    Beogradska tvrđava, spomenik kulture od izuzetnog značaja za Republiku Srbiju, izgrađena je od krečnjaka badenske starosti. Njihova litološka heterogenost, u sadejstvu sa uticajima okruženja, rezultira visokim intenzitetima raspadanja. Korelacijom intrinzičnih sa ekstrinzičnim faktorima, definisani su fizičko-hemijski procesi raspadanja ugrađenih mikrofacija krečnjaka. Aplikacijom neorganskih konsolidanata na karbonatnoj bazi (nano-kreča i Ca-acetoacetata) i alkoksisilana, te korelacijom fizičko-mehaničkih svojstava pre i nakon tretmana, ispitana je efektivnost u pogledu zaustavljanja dekohezije krečnjaka. Određivanjem petroloških, tehničkih svojstava i mapiranjem formi raspadanja Mračne kapije kao ...
    krečnjaci, forme i intenziteti degradacije, fizičko-hemijsko raspadanje, konsolidacija, nano-kreč, Ca-acetoacetat, alkoksisilani, Mračna kapija

  • An Approach to Development of Bilingual Lexical Resources

    Stanković Ranka, Obradović Ivan, Trtovac Aleksandra (2012)
    ... approach relies on already available resources, Serbian morphological e-dictionaries, Serbian and English wordnets connected via the interlingual index, and a bilingual Dictionary of Librarianship, as well as on a TMX document collection generated from aligned Serbian-English journal articles ...
    ... SrpWN is restricted to a certain extent by the fact that Serbian synsets have to be linked to corresponding English synsets by the interlingual index (ILI) [Tufiş, 2004]. Another reason is the assessment that a bilingual resource in tune with Bibliša’s specifics would substantially contribute ...
    ... appropriate category codes. Thus, for example, the synset impact is classified into categories inf (informatics) and mng (management), the synset index into inf (informatics) and print (printing), whereas the synset librarian belong to categories bibl (librarianship) and pers (persons). 3.2 The ...

  • Дефинисање археолошких објеката на локалитету Кремените њиве применом Ојлерове 3Д деконволуције на магнетометријске податке

    Весна Цветков, Илија Васиљевић, Бранислав Сретеновић, Весна Дамњановић (2018)
    ... ase of the intensity of the magnetic field with the distance from the  source of the anomaly. For simple models, it is interpreted as a structural index (Thompson, 1982) and  defines the type of targets used in the O3DD procedure (Reid et al., 1990).  In this work, the Standard and Located O3DD wit ...
    ... Method  the area covered by solutions is somewhat broader.  In the case of deeper sources, it was necessary to change the value of the structural index for a  more accurate determination of the depth. The Standard O3DD well outlined the source of the anoma‐ lies, while with the Located method the a ...
    ... e source  of the magnetic anomalies at the site Kremenite njive the Located O3DD was selected with two levels of  peak detection with a structural index of 0.5 considered most suitable for contacts (Ried et al., 1990). A  normal level of detection of peaks was used, which included only the maximum v ...

  • Improvement of geodatabase queries within GeolISS

    Ranka Stanković (2008)
    ... by a “literal string” followed by a “sense tag” which represents the specific sense of the literal string in that synset, while the interlingual index (ILI) enables the connection of the same concepts in different languages, a feature that can be used, among others, for cross-language information ...
    ... Techniques ‘03— Workshop Proceedings, U. S. Geological Survey Open-File Report 03-471, p. 157–167. http://pubs.usgs.gov/of/2003/of03-471/richard1/index. [2] Richard, S.M., 2003. Geologic map database implementation in the ESRI Geodatabase environment, in Soller, D.R., ed.,Digital Mapping Techniques ...
    ... (ISO TC211, http://www.isotc211.org) [5] ESRI: GIS and mapping software (http://www.esri.com) http://pubs.usgs.gov/of/2003/of03-471/richard1/index http://pubs.usgs.gov/of/2003/of03-471/richard2/ https://www.seegrid.csiro.au/twiki/bin/view/CGIModel/GeoSciML http://www.isotc211.org/ http://www.esri ...

  • 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)
    ... taken into account the curveline dependency index ρ (Vukadinović, 1970) between the reduced distance R and the oscillation velocity v. The evaluation of the relationship degree of two variables (Lutovac, 2010) to values of the curveline dependency index ρ is given in the following survey: - 0 < ρ ...
    ... Based on the data in Table 3, a statistical analysis was carried out and the following values were obtained: For model 1: The curveline dependency index 1 between the reduced distance R and soil oscillation velocity v is: 1 0.7786  - there is a strong correlation between R and v, given in the ...

  • Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal

    Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)
    Polimeri i plastika, opšta hemija
    ... and Elemental Analysis The results of Rock-Eval pyrolysis comprising S1, S2, S3, Tmax, total organic carbon (TOC), hydrogen index (HI), oxygen index (OI), and production index (PI) are listed in Table 2. As expected, the HI versus OI diagram (Figure 2) clearly indicates kerogen type III for lignite, ...
    ... Tmax—temperature corresponding to S2 peak maximum(◦C); TOC—total organic carbon (%, wt.); HI—hydrogen index = (S2 × 100)/TOC (mg HC/g TOC); OI—oxygen index = (S3 × 100)/TOC (mg CO2/g TOC); PI—production index = S1/(S1 + S2). For other abbreviations, see the legend of Table 1. The content of TOC increases ...
    ... between lignite and HDPE at the aforementioned temperatures, associated with greater production of liquid and gas. Figure 2. The hydrogen index (HI) vs. oxygen index (OI) plot. Legend: TOC—total organic carbon. The content of organic carbon (Corg) obtained by elemental analysis is almost identical to ...

  • Izdvajanje vode iz prirodnog gasa

    Dejan Nedeljkov (2024)
    U radu je istaknuto važnost prirodnog gasa kao vitalna komponenta svetske energetike.Spada u najsigurnije,najčistije i najkorisnije fosilno gorivo. Sama pojava vode u vidu vlage u gasu je pokazatelj lošeg kvaliteta gasa. parametri koji mogu dovesti do lošeg kvaliteta prirodnog gasa kao pokazatelj je Wobbe index.U okviru istraživanja u master radu glavni problem funkcionisanja na KPG Paliću predstavlja vlaga u gasu,takođe se može zaključiti da kvalitet gasa zavisi od Wobbe indeksa odnosno, što je Wobbe veći, čistiji je gas, ili ...
    prirodni gas, separatori, separacija, grejači, čileri, tačka rose, Wobbe indeks
    ... koji mogu dovesti do lošeg kvaliteta prirodnog, gasa kao pokazatelj je Wobbe index koji je propisan važećim standardima u ovoj oblasti. Kompanija „NIS AD“ isplaćuje „penale“ kompaniji Srbijagas, ukoliko je Wobbe index ispod dozvoljene granice. Predmet istraživanja u ovom radu je uticanje na kvalitet ...
    ... Wobbe indexa određuje se kvalitet prirodnog. gasa koji ima značaj na prodajnu vrednost gasa.Wobbe index po pravilima transporta treba da se kreće u opsegu od 42-46 MJ/m*. Ukoliko se desi da Wobbe index bude van dozvoljenog opsega, firma NIS-Gaspromnjeft plaća penale Srbijagasu zbog neodgovarajućeg ...
    ... vode u vidu vlage u gasu Je pokazatelj lošeg kvaliteta gasa. parametri koji mogu dovesti do lošeg kvaliteta prirodnog gasa kao pokazatelj je Wobbe index. U okviru istraživanja u master radu glavni problem funkcionisanja na KPG Paliću predstavlja vlaga u gasu,takođe se može zaključiti da kvalitet ...

  • Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović (2017)
    Large collections of textual documents represent an example of big data that requires the solution of three basic problems: the representation of documents, the representation of information needs and the matching of the two representations. This paper outlines the introduction of document indexing as a possible solution to document representation. Documents within a large textual database developed for geological projects in the Republic of Serbia for many years were indexed using methods developed within digital humanities: bag-of-words and named ...
    ... a preprocessing of documents usually takes place, in which an index of the collection of documents is formed, to be used for search and retrieval purposes. Relevant documents are retrieved and ranked upon a user query on basis of this index, using an approximate matching model, such as the vector space ...
    ... s) were extracted from all documents on geological projects. The bag of words generated for each particular document represents its first index. The second index is generated from recognized NEs that belong to 3 selected types—location, organization and persons. Figure 3 represents one document from ...
    ... classification have been reported. A system for PhD dissertation metadata and full-text search was developed at the University of Novi Sad. It uses an index based on Lucene that integrates a Porters stemmer for Serbian [9]. Furlan and associates [5] also use Porter’s stemmer and min-max normalization for ...

  • Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach

    Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2021)
    Poor water solubility of new chemical entities is considered as one of the main obstacles in drug development, as it usually leads to low bioavailability after administration. To overcome these problems, the selection of the appropriate formulation technology needs to be based on the physicochemical properties of the drug and introduced in the early stages of drug research. One example of the new potential drug substance with poor solubility is DK-I-60-3, deuterated pyrazoloquinolinone, designed for the treatment of various neuropsychiatric ...
    pyrazoloquinolinones, nanocrystals, wet media milling, fasted/fed bioavailability
    ... 3390/pharmaceutics13081188/s1, Table S1: Particle size (z-ave) and polydispersity index (PDI) of nanocrystal dispersions after 30 min of milling (mean ± SD, n = 3), Table S2: Particle size (z-ave) and polydispersity index (PDI) before and after dissolution study (mean ± SD, n = 3). Author Contributions: ...
    ... Particle Size Measurements The particle size and particle size distribution expressed as the mean hydrodynamic diameter (z-ave) the polydispersity index (PDI) were determined by dynamic light scatter- ing (DLS) technique on the Zetasizer Nano ZS90 (Malvern Instruments Ltd., Worcestershire, U.K.). Before ...
    ... crystalized drug form. These results are typical for class I molecules with high crystallization tendency or non-glass-formers [14]. The crystallinity index calculated from the melting enthalpies of melting peaks during first and second heating was 57.34%. Lower crystallinity could be attributed to a partially ...

  • Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals

    Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić (2020)
    As the number of poorly soluble drugs is increasing, nanocrystals have become very interesting due to wide range of application possibilities. Curcumin was used as a model active ingredient in this work. Even though it has many proven positive effects, due to its physicochemical issues, its possibilities have not been fully exploited. The goal of this work was to select optimal conditions for a top-down method for curcumin nanosuspension production, and to perform their comprehensive characterization applying complementary methodologies: ...
    nanocrystal, curcumin, top-down method, wetball milling

  • Mitigating hydrate formation in onshore gas wells: A case study on optimization techniques and prevention

    Milica Ješić, Bojan Martinović, Stefan Stančić, Miroslav Crnogorac, Dušan Danilović (2023)
    Gas wells, particularly those situated onshore, play a vital role in the global energy sector by supplying a significant portion of natural gas. However, operational challenges, notably gas hydrate formation, pose substantial issues, leading to complications such as flowline blockages and unexpected well shutdowns. Gas hydrates, crystalline structures resembling ice, ...
    Gas Well, Gas Hydrate Formation, Well Modeling, Well Performance Optimization, Choke Position Adjustments, Methanol Injection

  • Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)

    Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović (2014)
    Sphene (CaTiSiO5), a calcium titanosilicate ceramic has been prepared from a powder mixture of CaCO3, TiO2 and SiO2 using vibro-milling for homogenization and activation of precursors. During the highpressure and high-temperature synthesis (HPS) process at 4 GPa and 1,200 °C, sphene undergoes into phase transition, from room-temperature phase P21/a to high-temperature phase A2/a. Evidence of that structural phase transition is given in this paper using infrared, Raman spectroscopy and X-ray powder diffraction. Rietveld refinement was employed to get the ...
    Sphene, Phase transition, Raman spectroscopy, X-ray diffraction, SEM, IR

  • A WordNet Ontology in Improving Searches of Digital Dialect Dictionary

    Miljana Mladenović, Ranka Stanković, Cvetana Krstev (2017)
    In this paper, we present a method for automatic generation of a digital resource, which connects all indirect synonyms of a dialect term to all indirect synonyms of a corresponding term in the standard language, aiming to improve the search of a digital dialect dictionary. The method uses SWRL rules defined in the Serbian WordNet ontology to identify sets of synonymous words. It also uses e-dictionaries to produce correct lemmas in standard language that users usually employ in searches. ...
    ... dictionary, given in standard language о Index inverting Table: dictionary verb @ entry related with equivalent standard language lemma of a verb Table: dictionary verb entry related with equivalent in standard language Inverted index table: standard language verb lemma related ...
    ... bold): isabim | isabi; ја isabi; 1 isabi; isabija; iskvarim_iskvariti; upropastim_upropastiti ačkam | ačkaj; ačkašem; kotrljam_kotrljati (3) Ап index table was created Ђу inverting the table obtained in the step (2) i.e. аП dialect dictionary entries related to each infinitive representing а уегђ ...