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Упит dcterms_subject_txt:multi-criteria decision methods

590 items

  • Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)

    Nikoleta Aleksić, Aleksandar Kostić, Miloš Radonjić (2021)
    This paper presents the first data on the organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in the East Herzegovina region of the External Dinarides. Representative, organic-rich samples from outcropping sedimentary rocks of different ages in the area (Triassic to Neogene) were selected and analysed. The organic matter was studied by Rock-Eval pyrolysis and under the microscope in reflected non-polarized light and incident blue light. The results obtained show the presence of different types of organic ...
    nafta i gas, Rock-Eval, refleksija vitrinita, maceral, termička zrelost
    ... al., 2011). MATERIALS AND METHODS Samples Twenty representative outcrop samples from twelve loca- tions in East Herzegovina, between Nevesinje and Gacko in the north and Trebinje and Lastva in the south, were collect- ed for the study (Fig. 1C). �e main sampling criteria were to include all outcropping ...
    ... al., 2011). MATERIALS AND METHODS Samples Twenty representative outcrop samples from twelve loca- tions in East Herzegovina, between Nevesinje and Gacko in the north and Trebinje and Lastva in the south, were collect- ed for the study (Fig. 1C). The main sampling criteria were to include all outcropping ...
    ... petrographic “whole rock” specimens (polished block), and the pulverized rock (0.10–0.25 mm) was used for Rock-Eval pyrolysis. Methods In this study, common analytical methods were used: Rock-Eval pyrolysis and organic petrographic investiga- tions, including vitrinite re�ectance. All investigations ...

  • Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels

    Irina Zahirovic, Dušan Danilović, Milica Šuput Vranjin, Miloš Tripković (2023)
    drilling fluid formulation, upstream oil and gas, fluid dynamics, fluid loss control, gel

  • GNSS Time Series as a Tool for Seismic Activity Analysis Related to Infrastructure Utilities

    Sanja Tucikešić, Ankica Milinković, Branko Božić, Ivana Vasiljević, Mladen Slijepčević (2021)
    GNSS, Time series, Seismic deformations, Earthquake, Infrastructure utilities

  • Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko-energetskim kompleksima

    Jelena R. Malenović - Nikolić (2016-07-12)
    Efikasnost funkcionisanja sistema upravljanja zaštitom životne sredine u rudarskoenergetskimkompleksima zavisi od stepena sprovođenja usvojene politike zaštiteživotne sredine i primene preventivnih mera zaštite životne sredine. Nedostatakfinansijskih sredstava za unapređivanje tehnologije eksploatacije, transporta, pripreme iprerade energetskih mineralnih sirovina u našim rudarsko-energetskim kompleksima,negativno utiče na ostvarivanje ciljeva zaštite životne sredine, a posledice radnihaktivnosti rudarsko-energetskih kompleksa dovode do smanjenja nivoa kvalitetavazduha, vode i zemljišta...
    rudarsko-energetski kompleks, životna sredina, sistem upravljanja,višekriterijumsko odlučivanje, modeliranje
    ... environmental quality. Implementation of the ISO 14000 standards and modern methods of environmental management representsa cornerstone for improving the environmental management process. Multiple-criteria decision analysis based on an analysis of the effects of coal energy transformation and ...
    ... contribution of this research involves a developed EMS model based on modern management methods. Key words: mining and energy complex, environment, management system, multiple- criteria decision analysis, modelling Scientific field: Mining Engineering Special ...
    ... to prove the benefits of using contemporary management methods and energy indicatorsfor decision making, as opposed to management systems based on subjective opinions of individuals. The research analyses the use of the following methods: the Analytic Hierarchy Process, the Balanced Scorecard for ...

  • Transboundary groundwater resource management: needs for monitoring the Cijevna River Basin (Montenegro–Albania)

    Momčilo Blagojević, Zoran Stevanović, Milan Radulović, Veljko Marinović, Branislav Petrović (2020)
    The transboundary Cijevna River Basin shared between Albania and Montenegro has a surface area of 650 km2. It is extremely important for water management, especially in the country of Montenegro which is downstream. Due to the high permeability of both the karst and intergranular aquifers that exist in the basin, the River Cijevna sinks along the length of its riverbed and in summer months it usually dries up completely at the confluence section. Hydrometry surveys undertaken during a drought ...
    Upravljanje međugraničnim vodama, ranjivost podzemnih voda, monitoring mreža, karstne izdani, Albanija, Crna Gora

  • Simpson's rule application for experimental determining parameters of rock mass oscillation equation at limestone

    Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Branko Gluščević, Luka Crnogorac (2021)
    By its form, the use of explosives has a destructive character. However, energy of chemical explosives is tamed and perfected in many effects, so that is developed a series of activities which work is unthinkable without the use of explosives. In mining industry, explosives are most commonly used for exploitation in hard rock mass. Thereby, large amounts of explosives can be used, especially for mass blasting. The application of large amounts of explosives gives auspicious techno – economic indicators ...
    working environment, seismic effects of blasting, oscillation velocity, rock mass oscillation equation, Simpson’s rule

  • Geotehnički uslovi izgradnje metro stanice „Savski trg“ – beogradski metro linija 1

    Dragoslav Rakić, Nemanja Stanić, Josip Išek, Slavoljub Stojković (2023)
    Ukrštanje linija 1 i 2 beogradskog metroa, planirano je na lokaciji “Savski trg” gde će se izgraditi zajednička metro stanica. Zbog složene konstrukcije objekta i različite dubine dijafragmi, koja na delu metro linije 2 iznosi preko 40 m, planirana je fazna izgradnja. U vezi sa tim u radu je prikazan način definisanja geotehničkog modela, kao i geotehnički proračuni u kojima su analizirani: fazni načini iskopa, filtraciona analiza, uticaj pornih i efektivnih napona na stabilnost dijafragme, horizontalna i vertikalna ...
    beogradski metro, metro stanica, geotehnički model, stabilnost dijafragme, horizontalna pomeranja, vertikalna pomeranja

  • 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
    ... information, information transforms into knowledge and knowledge drives and underpins behaviour and decision-making (Abram,1997; p.20). To deal with the almost infinite amount of digital information, new methods such as data mining, text mining, content management, search engines, spidering programs, natural ...
    ... collection (it is possible to simultaneously search through all available text collections). The user enters the search criteria in the search field, then adds additional criteria by clicking the “+” sign. Boolean operators “OR” and “AND” build the search query. “AND” is used for different search ...
    ... language resources in the form of morphological e-dictionaries and grammars, implemented by finite state automata, finite state transducers and multi-word unit inflection rules (Krstev, 2008). All of them are used to improve the full-text search performance of our DL, especially the recall. ...

  • Mineral and Thermal Waters of Serbia: Multivariate Statistical Approach to Hydrochemical Characterization

    Maja Todorović, Jana Štrbački, Marina Ćuk, Jakov Andrijašević, Jovana Šišović, Petar Papić (2016)

  • The Nooj System as Module within an Integrated Language Processing Environment

    Ranka Stanković, Duško Vitas, Cvetana Krstev (2008)
    NooJ, electronic dictionary, lexical resources
    ... wordnets for corresponding languages. Thus the search criteria including dokument, papir, akt is expanded with document, written document, papers. Optionally, the user can include literals from hypernyms of the selected synsets, so the search criteria includes pisanxe, pisano delo in Serbian and rep ...
    ... edition, NooJ’s functions are available via a .NET dynamic library, noojengine.dll, constituted by a set of public object classes and methods. These classes and methods can be used by any .NET application, so noojengine.dll is linked with WS4LR and available NooJ functions are used. Another, at the ...
    ... Figure 4. The main form for wordnet management The user can also use an Xpath expression to retrieve synsets on basis of various other criteria, such as the domain synsets belong to. Thus, for instance, with the expression: “//SYNSET[DOMAIN='administration']” the user can retrieve all ...

  • Towards a Mining Equipment Ontology

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... maintenance. Basically, IT is introduced through computer-aided information systems, with the aim of securing reliable information for management and decision making in mining engineering systems [2]. Various IT maintenance support systems and tools have been developed and implemented, ranging from CMMSs ...
    ... archives-ouvertes.fr/docs/00/60/21/82/PDF/TOTH2011.pdf, 2011. [5] Kolonja, B., Stanković, R., Vuković, F., Obradović, I.: An Approach to Management Decision Support: The Coal Mine Pljevlja Management Information System. In: Proceedings of the Fifteenth International Symposium on Mine Planning and Equipment ...

  • Building Terminological Resources in an e-Learning Environment

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Ljiljana Kolonja (2012)
    ... FMG. Taken into account its e-format and the fact that for several years now FMG has been developing and using its Moodle e-learning platform, the decision has been made to develop an interface between RudOnto and Moodle. In this paper we describe how we have tackled this problem1. In the next ...
    ... Devedžić, V., Semantic Web and Education, Springer, 2006. [5] Kolonja, B., Stanković, R., Vuković, F., Obradović, I., An Approach to Management Decision Support: The Coal Mine Pljevlja Management Information System, Proceedings of the Fifteenth International Symposium on Mine Planning and Equipment ...
    ... pp. 436-441, 2006. [6] Krstev, C., Stankovic, R., Obradovic, I., Vitas, D., Utvic, M., Automatic Construction of a Morphological Dictionary of Multi-Word Units, in IceTAL. Reykavik, Iceland: Springer, pp. 226–237, 2010. [7] Krstev, C., Stankovic, R., Vitas, D., Obradovic, I., The Usage of Various ...

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

    Ivan Obradović, Ranka Stanković, Olivera Kitanović, Jelena Prodanović (2011)
    ... for this platform, as well as workshops related to exchange of experience in initial application of this e-learning support system. Hence, a decision was made to introduce Moodle to the already existent blended learning system at FMG. Moodle is a free and open source (published under the ...
    ... Moodle. This is how the Moodle InfoTeh course was created encompassing course material for several postgraduate courses: Databases, Intelligent decision support systems, Information system design, and GIS (Geographic Information System) technologies. InfoTech course material is hence not organized ...
    ... format or the topics format. Moodle also has a developed set of grading tools enabling teachers to assign scores to activities based on different criteria, and monitor student activity and performance. As an e-learning support tool Moodle offers various forms of interaction and information sharing ...

  • Uticaj proširenja nuklearne elektrane “Pakš” (Mađarska) na resurse podzemnih voda u Vojvodini

    Bojan Hajdin, Dušan Polomčić (2016)
    ... The current decision of the neighbouring Republic of Hungary to enlarge the capacities of the existing nuclear power plant „Paks“, located on the Danube river, by two new reactors, poses a significant issue which requires extensive assessment of all aspects of the impact of such a decision on the enviroment ...

  • Influence of DEM resolution on numerical modelling of debris flows in RAMMS - Selanac case study

    Jelka Krušić, Biljana Abolmasov, Mileva Samardžić Petrović (2019)
    Debris flows induced by intensive rainfall represent very hazardous phenomena in many parts of the World. Methods for prediction of runout distance of flow like mass movements are different and depending on the input data, rheology, and available or appropriate numerical solution. However, sometimes it is not easy to obtain pre event and post event high-resolution data in the rural or mountainous area. Thus, the topology of terrain is the most important input parameter for the every real case ...
    tecišta, modeliranje, RAMMS, DEM
    ... Aleksandra 73, +381 11 3218538 Abstract Debris flows induced by intensive rainfall represent very hazardous phenomena in many parts of the World. Methods for prediction of runout distance of flow like mass movements are different and depending on the input data, rheology, and available or appropriate ...
    ... erministic (dynamical) approaches (Savage and Hutter, 1989; Hungr, 1995; Iverson, 1997; Takahashi, 2007; Wu, 2015). Many empirical-statistical methods for run out prediction require only a few input parameters and they are relatively easy to use. In contrast, dynamical models are independent from ...

  • Numerical Models of Debris Flows with Entrainment Analysis-Case Studies from the Republic of Serbia

    Jelka Krušić , Biljana Abolmasov, Miloš Marjanović (2021)
    The results of material entrainment analysis in RAMMS debris flow software, as well as numerical models of final flow heights for two case studies from the Republic of Serbia are presented. Both of debris flow cases started with initial sliding of huge volume block, prolonging to behave as flowing process. Results of the analysis showed that entrainment material affects final results of transportation model, runout distance, deposition area and volume of debris flow. In both cases entrainment volume is very ...
    tecišta, zadržavanje nanosa, RAMMS, validacija

  • Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series

    Luka Crnogorac, Rade Tokalić, Zoran Gligorić, Aleksandar Milutinović, Suzana Lutovac, Aleksandar Ganić (2021)
    Underground mining engineers and planners in our country are faced with extremely difficult working conditions and a continuous shortage of money. Production disruptions are frequent and can sometimes last more than a week. During this time, gate road support is additionally exposed to rock stress and the result is its progressive deformation and the loss of functionality of gate roads. In such an environment, it is necessary to develop a low-cost methodology to maintain a gate road support system. ...
    deformacije podgrade, lasersko skeniranje, višekanalna singularna spektralna analiza, prognoza, klasterisanje fuzzy vremenskih serija
    ... crosscheck of the support methods and the replacement solutions. Several back- analyses were carried out in order to achieve the correct validation of the interventions and an optimal understanding of the deformation behavior of the rock mass. Bao-Zhen Yao et al. [11] has presented a multi-step-ahead prediction ...
    ... mining in our country is very a difficult task. Most underground mines are characterized by low mechanized mining methods and production disruptions can happen often. Such mining methods are characterized by a long production cycle, and if we add disruptions then it is obvious that the gate road support ...
    ... mining in our country is very a difficult task. Most underground mines are characterized by low mechanized mining methods and production disruptions can happen often. Such mining methods are characterized by a long production cycle, and if we add disruptions then it is obvious that the gate road support ...

  • Imputing missing data using grey system theory and the biplot method to forecast groundwater levels and yields

    Jelena Ratković, Dušan Polomčić, Zoran Gligorić, Dragoljub Bajić (2022)
    Groundwater management is one of today’s important tasks. It has become necessary to seek out increasingly reliable methods to conserve groundwater resources. Dependable forecasting of the amounts of groundwater that can be abstracted in a sustainable manner requires longterm monitoring of the groundwater regime (rate of abstraction and groundwater levels). Monitoring of the groundwater source for the town of Bečej, Serbia had been disrupted for multiple years. The objective of the paper is to assess the possibility of reinterpreting ...
    upravljanje podzemnim vodama, izvorište podzemnih voda, prognoziranje

  • Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability

    Marija Živković, Dejan Ivezić (2021)
    Transformation of the heating sector is recognized as being essential for ensuring reliable and afordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import dependency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered and treated as a big advantage of district heating systems. Despite many advantages, sewage wastewater heat is still a mostly unused resource at the global level and a totally unused ...
    рекуперација топлоте из отпадних вода, систем даљинског грејања, топлотне пумпе, енергетске уштеде, емисија угљендиоксида, енергетска безбедност, Србија
    ... connected to DH and the number of inhabitants. Therefore, for obtaining optimal positive effects of heat pump intro- duction and before investment decision, every DH system requires more detailed analysis on production (heat sources, network, substations) and consumption side (inner installa- tion, ...
    ... different technical options. The obtained results can be useful for investors, city gov- ernments and policy makers by providing them bound- ary data for decision making. Some of outcomes such as import dependency and fuel mix diversifications should be introduced to policy makers at different levels in order ...
    ... should be directed to the decarbonization of the heating sector by using renew- able energy sources or introducing more efficient energy utilization methods. Wastewater heat can be considered as an alternative, renewable, and locally available energy source. In the cit- ies, almost 40% of produced heat ...

  • The analysis of the geothermal energy capacity for power generation in Serbia

    Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk (2013)
    Renewable Energy, Sustainability and the Environment
    ... volved is fast and inexpensive. Geothermometry is generally used in determining the current and previous temperatures of geothermal fluids. The methods are based on the temperature rela- tions of some chemical reactions or solubility of some minerals. Solution of a mineral in ground- water, which ...
    ... this research during 2011-2012 in the loca- tions selected on the basis of the physical and chemical properties previously analyzed by stan- dard methods in accredited laboratories. Samples of groundwater within the temperature range from 27-111 °C were taken from 23 sources. The samples were chemically ...
    ... this research during 2011-2012 in the loca- tions selected on the basis of the physical and chemical properties previously analyzed by stan- dard methods in accredited laboratories. Samples of groundwater within the temperature range from 27-111 °C were taken from 23 sources. The samples were chemically ...