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Упит dcterms_subject_txt:the house of algebraic integer

2837 items

  • The Impact on Karst Aquifer Regimes Induced by a Surface Reservoir in Karst through Multiparametric Analyses (Reservoir Bileća—Herzegovina)

    Saša Milanović, Ljiljana Vasić, Branislav Petrović, Tina Dašić, Veljko Marinović, Petar Vojnović (2023)
    Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment, Geography, Planning and Development, Building and Construction

  • 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
    ... coal.2016.07.014 YUDOVICH, YA.E. (1978): Geochemistry of Fossil Coals.– Nauka, Leningrad [“Sci­ ence” Pub. House], 262 p. (in Russian). YUDOVICH, YA.E. & KETRIS, M.P. (2002): Inorganic Matter of Coals. UrO RAN. Ekaterinburg [Ural Division of the Russian Acad. Sci.], 422 p. (in Russian). YUDOVICH, YA ...
    ... active. Since 1991, the Kovin mine has produced about 5 Mt of lignite, with an annual produc­ tion of ~ 300,000 t. Geological exploration of the wider area of the Kovin de­ posit, including the Kostolac coal basin, began in the late 19th century. The Upper Miocene (Pontian) age of the coal­bearing sediments ...
    ... (5–7o) to the northwest. In the central part of deposit coal seams form an antiform due to post­sedimentary faulting, causing ero­ sion of coal seam I in the central part of the deposit between fields A and B. One of the most important normal faults is located in the western part of the B field (Fig ...

  • 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
    ... than 70% of global green- house gas (GHG) emissions. The major share of energy consumed in urban areas is related to heating needs, while fossil fuels make approximately 75% of consumption in this sector (International Energy Agency 2014). Thus, the heat- ing sector has a decisive role in the energy ...
    ... values of the primary energy factor (1.52) and the carbon dioxide emission coefficient (328.3 kg/MWh) are consequences of fossil fuel-based heat production. Due to the different structures of input fuels, the effi- ciency of the systems, and the efficiency of the buildings, values of the indicators ...
    ... oil and at the end natural gas. Such an approach and order of substitution is governed by the need for maximiz- ing the reduction of GHG emission and air pollution in the cities. For the projection of the future state of district heat- ing systems, the heating area and efficiency of the build- ings ...

  • Развој хибридног модела за оптиматизацију завршне контуре одлагалишта у површинској експлоатацији лежишта минералних сировина

    Aлександар Додеровић (2024)
    Површинска експлоатација минералних сировина захтијева претходно откопавање значајних( милионских) количина јаловине, које је неопходно транспортовати до локације на којој ће сеона трајно одложити. Традиционални приступ избора локације и дизајна одлагалишта се карактерише парцијалним приступом, заснованом на анализи неколико водећих критеријума као и на личном искуству инжењера, често занемарујући синергетски ефекат осталих утицајних фактора Технолошке операције које се односе на манипулацију јаловином, међу којима предњачи транспорт, генеришу највећи дио трошкова у површинској експлоатацији. Такође, цјелокупан процес експлоатације додатно је ограничен ...
    оптимизације завршне контуре одлагалишта, хибридни модел, површинска експлоатација, генетски алгоритам

  • Development of a petrographic classification system for organic particles affected by self-heating in coal waste. (An ICCP Classification System, Self-heating Working Group – Commission III)

    M. Misz-Kennan, J. Kus, D. Flores, C. Avila, Z. Büçkün, N. Choudhury, K. Christanis, J.P. Joubert, S. Kalaitzidis, A.I. Karayigit, M. Malecha, M. Marques, P. Martizzi, J.M.K. O'Keefe, W. Pickel, G. Predeanu, S. Pusz, J. Ribeiro, S. Rodrigues, A.K. Singh, I. Suárez-Ruiz, I. Sýkorová, N.J. Wagner, D. Životić (2020)
    Self-heating of coal waste is a major problem in the leading coal-producing and consuming countries, independent of the recent or past coal exploitation history. The phenomenon of self-heating is dependent on many factors such as the properties of organic matter (maceral composition and rank), moisture and pyrite content, climate effects, and storage conditions (shape of the dump or compaction of the coal waste). Once deposited, coal waste undergoes oxidation, which can lead to self- heating with the overall temperatures ...
    Stratigraphy,Economic Geology,Geology,Fuel Technology

  • Projecting short to medium-term effects of carbon emissions trading on Serbia's GDP

    Boban Pavlović, Nikola Trtica (2024)
    This paper presents an approach to assess the short to medium-term effects of the Emissions Trading System (ETS), an economic and climate policy instrument aimed at reducing greenhouse gas emissions, on GDP from the expenditure side. The analysis focuses on Serbia’s electricity sector, which relies heavily on lignite-based pro duction dominated by state-owned enterprises. The obtained projections suggest that in the short term, the introduction of an ETS may lead to slower GDP growth compared to official forecasts. However, ...
    ETS, BDP - rashodni pristup, cene električne energije
    ... Understanding the dynamics of key economic indicators at the na- tional level and the key characteristics of the electricity sector is crucial for assessing the impacts of the ETS on the expenditure side of GDP in a specific economy. A comprehensive analysis of the state of the Serbian economy ...
    ... Fig. 3. The structure of electricity production by energy sources in Serbia (%) (2013—2022) (Statistical Office of the Republic of Serbia, 2023). Recommendation of the Ministerial Council of the Energy Community, Serbia prepared an INECP covering the period from 2021 to 2030 (Republic of Serbia ...
    ... present value of expected annual cash flows and the investment growth rate. The value of investments after introducing the ETS is calculated using the recommended growth rate of investments of 7%, which is applied to the revenues collected from introducing the ETS. The B. Pavlović and N. Trtica ...

  • Српски језик у дигиталном добу -- The Serbian Language in the Digital Age

    Duško Vitas, Ljubomir Popović, Cvetana Krstev, Ivan Obradović, Gordana Pavlović-Lažetić, Mladen Stanojević (2012)
    Serbian language
    ... majority of the population accesses the global Web from desktop computers, one fih from cell phones, and a little less from laptops. As for connection type, almost one half of the house- holds in Serbia that use the Internet have anADSL con- nection, one quarter have cable Internet, whereas 29% of the respondents ...
    ... also offer some sort of language sup- port, and (c) through in-house development within domestic organisations such as publishing houses and translation agencies. Except in rare cases, these three lines of activities are realised independently from each other. On the other hand, the computer-literate ...
    ... use such ser- vices. Trading via the Internet has been used by only 13% of the population. According to the Statistical Of- fice of the Republic of Serbia [19], the usage of ICT equipment shows the growth. According to the same source, the number of compa- nies using the Internet was 96.8% in 2010 (compared ...

  • Optimizacija i planiranje površinskih kopova stohastičkim modelima

    Dejan R. Stevanović (2015-05-29)
    Savremeno rudarstvo izloženo je stalnom trendu pogoršanja uslova poslovanja.Mogućnost ostvarenja ekonomskih i drugih ciljeva rudarskog projektakompromitovana je stalnim pogoršanjem kvaliteta ležišta na kojima se vršieksploatacija, kao i značajnoj dozi neizvesnosti povezane sa geološkim,ekonomskim i tehničkim parametrima proizvodnje. U ovako kompleksnimuslovima poslovanja, matematički modeli sposobni da odgovore značajnimizazovima, odnosno ponude optimalna rešenja kojima se garantuje maksimalnoispunjenje projektovanih ciljeva, nameću se kao neophodnost.Trenutni, konvencionalni pristup optimizaciji i planiranju površinskih kopovazasniva se na algoritmima, razvijenim sredinom prošlog veka čije je opšteobeležje deterministički ...
    površinski kop, planiranje, optimizacija, stohastički modeli, kontrola kvaliteta uglja, neizvesnost.
    ... 82-87. Dimitrakopoulos R, Ramazan S, 2008, Stochastic integer programming for optimizing long term production schedules of open pit mines: methods, application and value of stochastic solutions, Mining Technology, Transactions of the Institute of Mining and Metallurgy, Section A, Vol. 117, No. 4, str ...
    ... solutions. In planning processes and optimization of open pits, usage of stochastic mathematical models is analyzed in the research that is represented by this dissertation. The aim of the dissertation is to prove the advantages of implementations of stochastic or combined (hybrid) stochastic and ...
    ... 1949, The Monte Carlo Method, Journal of the American Statistical Association (American Statistical Association), Vol. 44 (247): str. 335–341 239 Morley C., Snowden V., and Day D., 1999, Financial impact of resource/reserve uncertainty, The Journal of The Southern African Institute of Mining and ...

  • Optimizacija i planiranje površinskih kopova stohastičkim modelima

    Dejan R. Stevanović (2015-05-29)
    Savremeno rudarstvo izloženo je stalnom trendu pogoršanja uslova poslovanja.Mogućnost ostvarenja ekonomskih i drugih ciljeva rudarskog projektakompromitovana je stalnim pogoršanjem kvaliteta ležišta na kojima se vršieksploatacija, kao i značajnoj dozi neizvesnosti povezane sa geološkim,ekonomskim i tehničkim parametrima proizvodnje. U ovako kompleksnimuslovima poslovanja, matematički modeli sposobni da odgovore značajnimizazovima, odnosno ponude optimalna rešenja kojima se garantuje maksimalnoispunjenje projektovanih ciljeva, nameću se kao neophodnost.Trenutni, konvencionalni pristup optimizaciji i planiranju površinskih kopovazasniva se na algoritmima, razvijenim sredinom prošlog veka čije je opšteobeležje deterministički ...
    površinski kop, planiranje, optimizacija, stohastički modeli, kontrola kvaliteta uglja, neizvesnost.
    ... 82-87. Dimitrakopoulos R, Ramazan S, 2008, Stochastic integer programming for optimizing long term production schedules of open pit mines: methods, application and value of stochastic solutions, Mining Technology, Transactions of the Institute of Mining and Metallurgy, Section A, Vol. 117, No. 4, str ...
    ... solutions. In planning processes and optimization of open pits, usage of stochastic mathematical models is analyzed in the research that is represented by this dissertation. The aim of the dissertation is to prove the advantages of implementations of stochastic or combined (hybrid) stochastic and ...
    ... 1949, The Monte Carlo Method, Journal of the American Statistical Association (American Statistical Association), Vol. 44 (247): str. 335–341 239 Morley C., Snowden V., and Day D., 1999, Financial impact of resource/reserve uncertainty, The Journal of The Southern African Institute of Mining and ...

  • Machine learning based landslide assessment of the Belgrade metropolitan area: Pixel resolution effects and a cross-scaling concept

    Uroš Đurić, Miloš Marjanović, Zoran Radić, Biljana Abolmasov (2019)
    Improvements of Machine Learning-based landslide prediction models can be made by optimizing scale, customizing training samples to provide sets with the best examples, feature selection, etc. Herein, a novel approach, named Cross-Scaling, is proposed that includes the mixing of training and testing set resolutions. Hypothetically, training on a coarser resolution dataset and testing the model on a finer resolution should help the algorithm to better generalize ambiguous examples of landslide classes and yield fewer over/underestimations in the model. This ...
    klizišta, podložnost, mašinsko učenje

  • Hibridni sistem za planiranje i analizu ventilacije rudnika

    Nikola Lilić, Ranka Stanković, Ivan Obradović (2000)
    Ventilacija rudnika, informacioni sistemi
    ... elektronsku knjigu? Sadržaj knjige UML notacija Index About the book 1 Population +Reproduce() +MovePopulation() : int +GetPopulParam() -PopSize : integer = 50 -GenerationNum : integer -StopEvolutionTime : integer -NOfGeneration : integer Chromosome +GetFitness() +PutFitness() -ChromosomeType ...
    ... re of the hybrid system INVENTS The outlined system (Figure 3) permits an aerodynamic definition of mine ventilation network based on psychrometric recordings and the use of ResNet software, i.e. the establishment of actual aerodynamic resistance of mine chambers and thus the configuration of the ...
    ... network. The results obtained after the desired analysis by SimVent can be exported to VENTEX – a diagnostic expert system that performs the analysis of obtained results according to a number of criteria. The result of such an expert analysis is an estimate of the validity and effectiveness of the ventilation ...

  • A Data Driven Approach for Raw Material Terminology

    Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja (2021)
    The research presented in this paper aims at creating a bilingual (sr-en), easily searchable, hypertext, born-digital, corpus-based terminological database of raw material terminology for dictionary production. The approach is based on linking dictionaries related to the raw material domain, both digitally born and printed, into a lexicon structure, aligning terminology from different dictionaries as much as possible. This paper presents the main features of this approach, data used for compilation of the terminological database, the procedure by which it has ...
    sirovine, rudarstvo, terminologija, rečnik, terminološka aplikacija, mobilna aplikacija, digitizacija, leksički podaci, korpusi, otvoreni povezani podaci
    ... from their Appl. Sci. 2021, 11, 2892 5 of 22 initial custom in-house scheme into the TermBase eXchange (TBX) Standard [21]. Another terminological resource, mostly handcrafted, was also developed to support knowledge management in specific subfields of mining engineering, such as mining equipment ...
    ... Since the presented approach used a combination of reuse of data, automatic extraction and manual post-editing, a comparison of those aspects with some similar solutions follows. When it comes to the reuse of data, we followed the idea of the Sõnaveeb language por- tal of the Institute of the Estonian ...
    ... combination of: reuse of data, automatic extraction and manual postediting. The advantage of using online platforms, which offer the possibility of regular updates and a more effective collaboration via the internet, as well as the use of mobile devices were highlighted in literature [4]. The impact of mobile ...

  • The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector

    Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković (2020)
    Natural gas is used for the production of almost 20% of total energy today. The natural gas security of the Republic of Serbia is an urgent strategic, political and security issue. Serbia is one of the most vulnerable countries in Southeast Europe, because it only has one supply route. This study is a contribution to efforts to better understand the factors affecting energy security through the implementation of a new methodology based on the fuzzy–AHP synthesis model for measuring ...
    energetska bezbednost, prirodni gas, fazi AHP, AHP višekriterijumska analiza, fazi teorija
    ... satisfies the condition of outcome, the value of Jc is calculated and rounded as integer, as follows: Jc = (kP1i · j(µP1)c) + (kP2i · j(µP2)c) + (kP3i · j(µP3)c) (14) wherе: - ki is the influential factor of the corresponding partial indicator on the synthesis and obtained on the basis of mutual ranking ...
    ... Table 19 shows the values of the index in the event of realization of the planned projects of interconnections with the gas systems of Bulgaria, Romania and Croatia. Table 19. Index of diversification of import rights of supply (IDIRS) in case of realization of the planned projects of interconnections ...
    ... for the security of supply indicator (S) and the partial indicator availability of energy (S1). (II) The second step in the formation of the synthesis model was the fuzzification of the input data. (IIa) In the case of expert evaluations, questionnaires were formed in which the answers of the corresponding ...

  • Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs

    John Nyame (2024)
    The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...
    Carbon Capture, Utilization and Storage
    ... fully. The other part refers to the difference between the exergy entering and the exergy leaving the system with respect to the CO2 flow. This exergy expenditure decreases as the process occurs, and the exergy gained is lower than the exergy expended because of the irreversibility of the equipment ...
    ... oil/gas recovery refers to the injection of materials into the reservoir to maintain the pressure in the formation and to release trapped oil/gas within the pores of the formation. The recovery process allows the injected carbon dioxide to mix with the trapped fluids within the pores and release it for ...
    ... reduce the cost of the process [15]. If brine, mixed with ammonia is exposed to CO2, already-weak bonds start to form, which leads to the removal of the ions from the water phase. The products sodium bicarbonate and ammonium chloride are heavy and, thus, can easily settle to the bottom of the tank ...

  • Novi model za postizanje optimalne proizvodnje na naftnom polju Amal

    Elnori Elmabrouk Ali Elhaddad (2015-04-16)
    Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...
    nafta, proizvodnja, optimizacija, Amal, Libija
    ... solution of the paraffin deposition problems, it has defined a set of new actions that must be taken. The analysis of the application of chemical inhibitors has been performed, and the application of thermal method of tubing heating has been proposed. As a solution for the penetration of layer ...
    ... g problems and the latest technical literature, a new model has been defined for achieving the optimum oil production. The model consists of two major parts; the first one dealing with the solution of the production problems, and the second one dealing with the determination of optimum parameters ...
    ... parameters for Gas Lift Operations. The originality of the model reflects in the fact that environmental aspects of the functioning of the oil production process have been exactly introduced into it and measures based on algorithms for the decrease of impact on the environment have been proposed. ...

  • Novi model za postizanje optimalne proizvodnje na naftnom polju Amal

    Elnori Elmabrouk Ali Elhaddad (2015-04-16)
    Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...
    nafta, proizvodnja, optimizacija, Amal, Libija
    ... solution of the paraffin deposition problems, it has defined a set of new actions that must be taken. The analysis of the application of chemical inhibitors has been performed, and the application of thermal method of tubing heating has been proposed. As a solution for the penetration of layer ...
    ... g problems and the latest technical literature, a new model has been defined for achieving the optimum oil production. The model consists of two major parts; the first one dealing with the solution of the production problems, and the second one dealing with the determination of optimum parameters ...
    ... parameters for Gas Lift Operations. The originality of the model reflects in the fact that environmental aspects of the functioning of the oil production process have been exactly introduced into it and measures based on algorithms for the decrease of impact on the environment have been proposed. ...

  • Model za optimizaciju graničnog saržaja metala u rudi u funkciji dugoročnog planiranja površinskih kopova

    Daniel P. Kržanović (2016-06-14)
    Optimizacija graničnog sadržaja metala u rudi jedan je od osnovnih koraka u planiranju i dizajniranju površinskih kopova i ima za cilj postizanje maksimalne neto sadašnje vrednosti (NPV). Iz tog razloga, optimizacija graničnog sadržaja i danas je predmet mnogih istraživanja u rudarskoj nauci, sa ciljem rešavanja praktičnih problema u eksploataciji ležišta.Dugoročno planiranje eksploatacije na površinskim kopovima podrazumeva sagledavanje svih relevantih parametara i faktora (geologije rudnog ležišta, tehnologije proizvodnog procesa, kapaciteta otkopavanja i prerade, troškova, cena metala, iskorišćenja i dr) kako ...
    površinski kop, dugoročno planiranje, optimizacija graničnog sadržaja, maksimizacija neto sadašnje vrednosti (NPV).
    ... For this reason, the optimization of cut off grade is even today the subject of many researches in the mining science, with the aim of solving the practical problems in the exploitation of deposits. Long-term planning of exploitation at the open pit involves consideration of all relevant parameters ...
    ... economic results in the integrated system of exploitation, flotation and metallurgical processing of ore. In particular, the application of proposed model is achieved by maximization the net present value of the project. The importance of optimization the cut off grade of metal in the ore for long-term ...
    ... Slovaca, The Union of Metallurgy, Mining Industry and Geology of Slovak Republic, the Slovak Mining Society, the Faculty of Mining, Ecology, Process Control and Geotechnologies (FBERG) of the Technical University of Kosice (Slovakia), and the Faculty of Mining and Geology (HGF) of the VSB Technical ...

  • Анализа утицаја искоришћења у преради на резултате оптимизације површинских копова

    Стефан Митић (2024)
    Одређивање оптималних граница површинског копа је сложен и итеративни процес који захтева мултидисциплинарну експертизу, софистициране технике анализе и пажљиво разматрање геолошких, рударских, економских,техничких, еколошких и друштвених фактора. Оптимизација подразумева генерисање серије шкољки, површинског копа на основу различитих фактора прихода (Revenue factor) са итеративним кораком промене цене метала у односу на базну цену. Свака генерисана шкољка представља инкрементално повећање запремине резерви према инкременталном повећању продајне цене метала. Велики број техно -економских фактора утиче на овај процес, и промена сваког од њих ...
    оптимизација површинског копа, анализа границе копа, оптимална контура копа, лежиште Бувач, профит, искоришћење у преради, трошкови прераде руде
    ... Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Pynapcko ...
    ... oomku (pakynTerT. 17.Lane, K. F., 1988. The Economic Definition of Ore Cutoff Grades in Theory and. Ist edition ed. s.l.:Communications Ltd. 18.Lee, T. D., 1984. Planning and mine feasibility study—4n owne?r s perspective. Spokane, Proceedings of the 1984 NWMA Short Course “Mine Feasibility—- ...
    ... Mining, Metallurgy, and Exploration, Inc. (SME). 30. Whittle J., 1999. A decade of open pit mine planning and optimization - The craft of turning algorithms into packages. Golden, Colorado, Colorado School of Mines. 31. Electronic source [Online] Available at: https://www.3ds.com/product ...

  • Услови заштите изворишта подземних вода “Јарош“ за водоснабдевање Сомбора

    Ивана Јовановић (2024)
    Територија града Сомбор се налази у периферном северозападном делу Војводине, односно Србије, у близини границе са Хрватском. Сам град Сомбор се налази југозападном делу територије и представља гравитациони центар тог подручја. Повољан географски положај условио је афирмацију Сомбора као градског насеља, са јаком пољопривредом, индустријом, занатством и прометом. "ВОДОКАНАЛ" из Сомбора је јавно комунално предузеће чија је основна делатност захват сирове подземне воде, њен третман, и дистрибуција ка потрошачима Сомбора и приградских насеља и насељених места: Лугова, Жарковца, Чонопље, ...
    заштита, извориште, водоснабдевање, Јарош, Сомбор
    ... Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs YHnHBep3uHreT ...
    ... Ena06opara o pecypcHMa H pe3epBaMa Ho:mDeMHHX BOJa Ha H3BopHmiry IICB „Japom“ V CoM0opy — rpazi CoM0op (crambe Ha naH 31.12.2021.) ' DH DESIGN HOUSE” nLo.o. – Beorpaxn). 4.2. NH IPOTEO.IOHMIKA „CBOJCTBA CTEHA H ljIPHKA3 3ACTYILBEHHNX THIIOBA H3,1AHH TIanynHHCKH CHOJeEBH IIpe;[icTaB-5ba]y 3aBpHIHH ...
    ... L - „EmaOopar o pecypcHMa H pe3epBaMa IHIOH3eMHHX BOJa Ha H3BopHmry IICB „Japom“ y CoMOopy — rpamT CoMGop (crabe Ha aH 31.12.2021.)“, DH DESIGN HOUSE z.o.o.. Beorpan 2021; 5. TpHQyHoBHh C. H CrpajHH B.: OTK COPPJ 1:100.000. macr JI-34-75 - CoM6op, CaBe3HH TeO.IOHIKH 3aBOJL. Beorpan, 1970: HHrepHer ...

  • Prognoza operativne efikasnosti aktivnog podzemnog rudnika zasnovana na teoriji sivih sistema

    Svetlana M. Štrbac-Savić (2016-06-10)
    Efikasnost predstavlja preduslov za opstanak svake rudarske kompanije, posebno u uslovima izuzetno konkurentnog trţišnog okruţenja kao što je to rudarska industrija. Efikasnost oznaĉava sposobnost kompanije da ispuni svoje kratkoroĉne ili dugoroĉne ciljeve. Operativna efikasnost se definiše kao odnos izmeĊu ulaznih parametara potrebnih za odvijanje proizvodnje i pokazatelja dobijenih proizvodnjom. U kontekstu rudarskog poslovanja, operativna efikasnost se odnosi na vreme potrebno da se mineralno dobro transformiše u novĉana sredstva. Visoka operativna efikasnost se postiţe kada se ostvari prava kombinacija karakteristika ...
    podzemni rudnik, operativna efikasnost, prognoza, teorija sivih sistema, stohastiĉke diferencijalne jednaĉine, simulacija
    ... Zhongzhe and Yang Zheba, The macro control model for the teachers of university, Applications of System Engineering, 1, pp. 32-39, 1986. [WEYGANDT10] Weygandt J.J., Kimmel P.D., Kieso D.E., ―Managerial Accounting: Tools for Business Decision Marketing‖, 5th edition, Publishing House Wiley&Sons, 2010 ...
    ... different inputs. The simulation allows analysts to describe the uncertainty of variables that influence the value of DOL by different time depending scenarios. The first objective of the use of simulation in the forecasting is to determine the distribution of the DOL from the variables that affect ...
    ... defined as the ratio between the input required to run production process and the output gained from the production. In the context of mining business, operational efficiency refers to the length of time until mineral assets are transformed to money. Peak operational efficiency occurs when the right ...