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Упит dcterms_subject_txt:Inorganic Chemistry,General Chemistry

550 items

  • Increasing the Local Road Network Resilience from Natural Hazards in Municipalities in Serbia

    Biljana Abolmasov, Miloš Marjanović, Ranka Stanković, Uroš Đurić, Nikola Vulović (2024)
    lokalni putevi, prirodni hazardi, otpornost na klimatske promene, MaPLoRds

  • Developing Students’ Mining and Geology Vocabulary Through Flashcards and L1 in the CLIL Classroom

    Lidija Beko, Ivan Obradović, Ranka Stanković (2015)
    ... s environments such as Serbia, where the majority are monolingual and where most of the students are at low levels of English. Therefore, our general approach is to mix the L1 with the target language in order to clarify the meaning, to correspond the new words with the words they already know ...
    ... functions of and within the words, providing the students the opportunity to see the lexis in action, to strengthen connections, and to widen their general lexical knowledge. 4 3 3 3 3 3 2 5 4 2 25 28 15 27 24 26 24 26 30 28 35 36 44 29 36 0 10 20 30 40 50 60 70 80 90 100 I ...

  • Terminological and lexical resources used to provide open multilingual educational resources

    Biljana Lazić, Danica Seničić, Aleksandra Tomašević, Bojan Zlatić (2016)
    Open educational resources (OER) within BAEKTEL (Blending Academic and Entrepreneurial Knowledge in Technology enhanced learning) network will be available in different languages, mostly in the languages of Western Balkans, Russian and English. University of Belgrade (UB) hosts a central repository based on: BAEKTEL Metadata Portal (BMP), terminological web application for management, browse and search of terminological resources, web services for linguistic support (query expansion, information retrieval, OER indexing, etc.), annotation of selected resources and OER repository on local edX ...
    otvoreni obrazovni resursi, leksički resursi, obrada prirodnih jezika, terminologija
    ... dictionaries include semantic markers which allow the distinction between ijekavian, ekavian and ikavian pronunciation. Dictionaries cover both general lexica and proper names. Serbian morphological dictionaries are found in LADL (Laboratoire d'Automatique Documentaire et Linguistique) format. There ...
    ... helpful in a sense of appropriate translation option. Successful methods used in automatic term extraction can be applied to units that belong to the general lexica, as well. The potential expansion of such resources would inevitably lead to a more fruitful information retrieval and extraction, providing ...

  • Softverski alati za korišćenje resursa za srpski jezik

    Ivan Obradović, Ranka Stanković (2008)
    ... (Dictionnaire électronique des mots simples – electronic dictionary of simple words), are in the following form: lema.Knnn [+SinSem]* where lema in general stands for the word form of a simple word used in traditional dictionar- ies. Knnn is the so-called inflectional code which determines the inflectional ...
    ... Different semantic relations exist between concepts. One of the basic semantic relations is the hypernym/ hyponym relation which relates a more general concept to a concept representing “one of its specific categories” (e.g. animal/dog). Another frequent relation is the holonym/meronym rela- tion ...
    ... by a period of several years. In that case it is possible to generate a monolingual parallel text, from two texts in the same language, which in general also have the same content, be- cause they were generated by translating the same original, but which are not identical. Finally par- allel texts ...

  • Terminology Acquisition and Description Using Lexical Resources and Local Grammars

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić (2015)
    Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...
    ... lemmas were grammatically correct and 2) whether MWU terms belong to domain terminology, in this case library and in- formation science, or to the general lexica. For candidate ranking three measures were used: frequency, C-Value (Franzi et al., 2000) and log-likelihood (Dunning, 1993; Gelbukh et ...
    ... for all evaluated term candidates for grammatical correctness. In order to calculate the log-likelihood meas- ure we used an excerpt from the general Corpus of Contemporary Serbian 7 that consists of 22 million simple word forms. Figure 7 presents the precision at rank n for 690 evaluated term ...
    ... Gelbukh, A., Sidorov, G., Lavin-Villa, E., & Chanona-Hernandez, L. (2010). Automatic Term Extraction Using Log-Likelihood Based Compari- son with General Reference Corpus. In C. Hopfe, Y. Rezgui, E. Métais, A. Preece & H. Li (Eds.), Natural Language Processing and Information Systems (Vol. 6177, pp ...

  • From DELA Based Dictionary to Leximirka Lexical Database

    Biljana Lazić, Mihailo Škorić (2020)
    In this paper, we will present an approach in transforming Serbian language Morphological dictionaries from a DELA text format to a lexical database dubbed Leximirka. Considering the benefits of storing data within a database when compared to storing them in textual documents, we will outline some of the functionality that the database has made possible. We will also show how hand-made rules that use category labels lexical entries are marked with can be used to link lexical entries. ...
    Morfološki rečnici, jezički resursi, Leksimirka
    ... thesaurus of the data cate- gories. Figure 2 shows a model of a lexicographic database that stores various categories of data, that is, grammatical, general, derivational, pronunciation, variational, syntactic, domain, and semantic markers. Figure 2. A lexicographic database model for data category information ...
    ... the paper (Stanković et al., 2018). Relations are defined through the relationship management segment of the Leximirka application, by filling in general information and by setting a set of rules that more closely define those relations. The rules themselves represent the criteria that both lexical entries ...
    ... edit, add or remove other properties. The panel consists of two visually separate parts, the upper part refers to the lemma and the lexical record in general, while the lower part refers to senses. 98 Infotheca Vol. 19, No. 2, December 2019 ...

  • 2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem

    Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov (2019)
    2D inversion, geoelectrical method, Wenner array, ecology, Ada Huja
    ... in the near vicinity of the waste site indicates a neglecting attitude for the health of people, but also for the condition of the environment in general. This is best noticed in the completely wrong classification of forest classes in that area. Lateral resistivity changes in the disposed waste ...
    ... containers in everyday life is for water and soft drink packaging, as well as electronics, home appliances, textiles etc. According to data of the “General characterization of waste” (Singh et al., 2015) which was not conducted for the Belgrade locality but can be used with some reserves, organic waste ...
    ... Cvetkov V. like products. Plastic contributes 21% with the highest decay rate and is the primary ecosystem contaminator (Figure 12). Figure 12 General waste characterization (Singh et al., 2015) There are five ways in which plastic degrades in the environment (Andrady, 2011): • Biodegradation ...

  • 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
    ... developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher ...
    ... proven to be an effec- tive and reliable tool for landslide monitoring is Global Navigation Satellite System (GNSS). Gili et al. (2000) give a general overview of the basic principles and discuss its applicability to landslide monitoring on Vallcebre landslide, in Spain. Since then, many published ...

  • Definition of criteria and alternatives for choosing the optimal mining method deposits when applying multi: Criteria optimization, Belgrade, June 2024

    Sanja Bajić, Dragoljub Bajić, Branko Gluščević, Radmila Gaćina, Josip Išek (2024)
    multi-criteria decision-making, definition of criteria, underground exploitation

  • Fuzzy Model for Risk Assessment of Machinery Failures

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    The main goal of this research was the development of an algorithm for the implementation of negative risk parameters in a synthesis model for a risk level assessment for a specific machine used in the mining industry. Fuzzy sets and fuzzy logic theory, in combination with statistical methods, were applied to analyze the time picture state of the observed machine. Fuzzy logic is presented through fuzzy proposition and a fuzzy composition module. Using these tools, the symmetric position of the ...
    fazi teorija, rizik, otkaz rudarskih mašina
    ... lead to negative consequences that can have an impact on machines, employees, or the working environment. Such incidents are called risky events. In general, it can be said that an event that can influence the outcome of a defined objective (preventing, disabling, or slowing down the realization of a ...
    ... lead to negative consequences that can have an impact on machines, employees, or the working environment. Such incidents are called risky events. In general, it can be said that an event that can influence the outcome of a defined objective (preventing, disabling, or slowing down the realization of a goal) ...
    ... a combination of the consequences of an event and their likelihood: the probability of the occurrence of harm and the severity of that harm. In general, risk levels are usually expressed through a Risk Priority Number (RPN) calculation and a Failure Mode and Effects Analysis (FMEA). RPN methodology ...

  • Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)

    Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević, Miloš Radonjić (2019)
    Mt. Avala is located on the southern margin of the Pannonian basin (SPB), a border zone between the uplifted morphostructures of the Dinarides and Carpathian-Balkanides. Similar to the Pannonian basin, tectonostratigraphic evolution of the Mt. Avala area during the last 23 Ma has is characterized by syn- and post-rifting processes as well as tectonic inversion. Here, we present the results of field investigations of the Miocene‒Pliocene dynamics that led to different spatial positions of the same stratigraphic units (e.g. ...
    мио-плиоценска геодинамика, јужни Панонски басен, Авалски и Торлак хорст, Белопоточки трог, Србија
    ... ap- plied. Although, some of the authors didn’t have similar views to the general model of the PB and mechanisms of its genesis, long- term investigations led to greater understanding of these pro- cesses. Today, the general structural pattern concerning the evo- lution of the PB is accepted (e.g. MATENCO ...
    ... observations of the relief. In addition, these observations are connected with an estimation of the structural elements based on a DEM terrain model and general (not sys- tematic) analysis of linear relief structures. In other words, this approach was forced due to circumstances but, in our mind, useful ...
    ... is classically interpreted as post Jurassic obduction, large scale faulting and thrusting within the innermost units of the Dinarides and with a general NW – SE strike (along the cen- tral part of the Balkan Peninsula) (TOLJIĆ et al., 2018). Struc- tures related to these events are best documented in ...

  • 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)
    ... the functional correlation is accepted as a good one. 4. REVIEW OF MASSIVE BLASTING AT "NEPRIČAVA" OPEN PIT MINE NEAR LAJKOVAC 4.1. General characteristics of "Nepričava" Open Pit Mine The limestone deposit "Nepričava" is situated at a distance of about 7.0 km west of town of Lajkovac ...
    ... growth of oscillation velocity of the rock mass and relative growth of reduced distances. Thereby, in a marginal case, a differential equation, whose general integral overlaps with the law of Sadovski, is obtained. Parameters n and K in the law of Sadovsky were determined in two ways - models in a given ...

  • Legal framework for recultivation of degraded areas caused by mining exploitation

    Radmila Gaćina (2023)
    Prilikom površinske i podzemne eksploatacije uglja eksploatacioni sistemi oštećuju veće ili manje površine zemljišta. Iskustva pokazuju da su oštećenja zemljišta znatno veća kod površinske eksploatacije, gde je prostora degradiran ne samo u konturi rudnika i okoline, već se promene takođe dešavaju u prirodnom okruženju. U članku su predstavljeni rezultati studije zakonskih okvira rekultivacije u nekim zemljama sveta i u Srbiji. Praktično iskustvo rekultivacije pokazalo je da iskorišćenje i devastacija tokom rudarske aktivnosti predstavljaju opasnost ne samo za pogođena ...
    rekultivacija, melioracija, otkopavanje uglja, zakonska regulativa
    ... publish and represent a detailed regulation on LRR. Regulation on Compiling Land Reclamation Plan (RCLRP) was issued in 2011, contains 7 parts (general rules, opencast coalmine, underground coal mine, metal mine, petroleum and natural gas (including coal-bed gas), construction projects, and uranium ...
    ... there is one single legislative regime or framework - the national mining law, BBergG (1980) - bringing together all mining operations and the general environmental laws to speed up and simplify the complex planning process. The law in Serbia defines that the Exploitation Holder is obliged to r ...

  • Design of a sucker rod pumping system

    Ana Ponoćko (2024)
    For a long time in the history of oil production, sucker rod pumps have been the first and in many cases the only choice when it comes to mechanical extraction methods. Proper selection of each individual element of the system enables optimization, which entails benefits in the form of increased efficiency and reduced costs. The first part of the paper presents the underground and surface equipment of the rod pump and describes the operation of the entire system. The ...
    sucker rod pump, fluid production, mechanical extraction methods,, Prosper, QROD, RODSTAR
    ... through the space (clearance) between the plunger and the cylinder is determined based on experimental data and is expressed in various forms. The general equation for fluid loss through the clearance between the plunger and the cylinder is given by [15,19]: dAxAp*6B „ d4 H*L qs =K 3.1 • qs= fluid ...
    ... These elements include nickel, chromium, copper, molybdenum, and boron. Steel rods are classified by the American Petroleum Institute (API). The general description of each category is as follows [4]: API Class C: Made from carbon-manganese steel, designed to withstand light to medium loads in ...
    ... the result of electrical analog computer studies of sucker rod motion. This predated the numerical solution of the wave equation and was not as general. However, the analog study did describe the motion of sucker rods and the forces carried by the rods. The original work was for conventional geometry ...

  • Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise

    Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Mladen R. Nedimović, Juan Pablo Canales, Hélène D. Carton, John C. Mutter, Javier Escartín (2023)
    Multidisciplinary

  • 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

  • Mine ventilation system planning using genetic algorithms

    Nikola Lilić, Ranka Stanković, Ivan Obradović (1997)
    The most common problem in contemporary mining practice related to the planning and analysis of ventilation systems is the optimization of partially regulated air distribution in mine ventilation networks. This paper presents a two step optimization procedure for partly regulated air distribution in mine ventilation networks. The first step is the determination of air distribution in all branches using the well known Hardy-Cross method. In the second step the distribution and parameters of air flow regulators with minimum engaged ...
    coal, lignite, and peat; ventilation systems; coal mining; underground mining; ventilation; mathematical models; design; air flow; optimization; calculation methods

  • Еоценска фауна југозападног дела Сирт басена (Либија)

    Љупко Рундић, Мери Ганић (2020)
    Еоцен, крупни мекушци, нумулити, ЈЗ Сирт басен, Либија

  • Development of Open Educational Resources (OER) for Natural Language Processing

    Cvetana Krstev, Biljana Lazić, Ranka Stanković, Giovanni Schiuma, Miladin Kotorčević (2015)
    In this paper we present the development of an online course at the edX BAEKTEL platform named “Lexical Recognition in the Natural Language Processing (NLP)”. It is based on the course of the same name for PhD studies at the University of Belgrade, Faculty of Philology. There are not many courses in Computational Linguistics (CL) on OER platforms, and there is none in Serbian either for CL or NLP. We have developed this course in order to improve this ...
    E-Learning, Open Educational Resources, Computational Linguistics, Lexical Resources, edX
    ... the group of interested researchers. The first courses at University of Belgrade were introduced in 1994: in Mathematical and CL for students of General Linguistics and students of Serbian language at the Faculty of Philology, as well as NLP graduate courses for students of Mathematics at the ...
    ... monolingual and bilingual texts (bi- texts in which basic segments are aligned). Unitex is freely distributed under the terms of the Lesser General Public License (LGPL). This means that everyone can redistribute Unitex freely within the terms of the LGPL license, access the source code of ...

  • 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
    ... in Novi Sad was determined on small samples taken from boreholes and obtained values were in interval of 19 — 53 % (Rakić et al., 2013). The general trend is that due to the increase of decomposition degree with depth, the moisture content of waste increases too (Figure 5). 3.2 Organic matter ...
    ... with the largest sieve diameter of 80 mm and the smallest diameter of 0.075 mm. Results of performed analyses are presented in Figure 10. In general it can be said that the waste from the Ada Huja landfill contains a higher percentage of smaller particles and this confirms an assumption that ...