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Упит dcterms_subject_txt:geotehnički monitoring

336 items

  • Stabilnost kosina u stenskoj masi - savremeni koncepti i metode proračuna

    Zoran Berisavljević, Dušan Berisavljević, Miloš Marjanović (2021)
    Stabilnost kosina
    ... ponaSanja objekta izgradenog uy, ili na stenskoj masi potrebno kombinovati i iskustvo. Danas se mehanika stena posebno brzo razvija u oblasti: monitoringa opti¢ékim i drugim postupcima, eksploatacije ¢€vrstih, teénih i gasovitih mineralnih sirovina, diskretnog modelovanja (Discrete Element Modeling) ...

  • Стање квалитета амбијенталног ваздуха на подручју града Панчева

    Александар Маринковић (2024)
    Квалитет ваздуха је кључни фактор за здравље људи и очување животне средине. У овом завршном раду анализирано је стање амбијенталног ваздуха на територији града Панчева како би се сагледали извори загађења, ПЛН мониторинга и изазови у погледу квалитета ваздуха са којима се суочавају сви становници. Кроз примену савремених метода праћења, идентификовани су главни извори загађења и анализирана је дистрибуција загађујућих материја у урбаном окружењу.Праћењем концентрације загађивача као што су честице PM10, PM2.5, сумпор-диоксид (SO2), азот-диоксид (NO2) и други, ...
    мониторинг, загађивачи, здравље, Панчево, квалитет ваздуха
    ... assess pollution sources, monitoring plans, and air quality challenges faced by all residents. By applying modern monitoring methods, the main pollution sources have been identified and the distribution of pollutants in the urban environment has been analyzed. Monitoring the concentration of pollutants ...
    ... taken towards improving, primarily the current air monitoring plan, and then the air quality, with the alm of protecting the health of Pančevo”s citizens, thereby contributing to creating a safer and healthier environment for all. Keywords: monitoring, pollutants, health, Pancevo, air quality. Canp:aj: ...

  • A Model for Determining the Dependability of Continuous Subsystems in Coal Mines Using the Fuzzy Logic Approach

    Nikola Stanić, Miljan Gomilanović, Petar Marković, Daniel Krzanović, Aleksandar Doderović, Saša Stepanović (2024)
    This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability, and low costs. These subsystems are usually part of the thermal power plant’s coal supply system and ensure stable fuel supply. The model integrates various independent partial ...
    fuzzy logic, max-min composition, continuous part of combined system (CCS), open pit, mining, dependability

  • Towards Sustainable Management of Transboundary Hungarian-Serbian Aquifer

    Zoran Stevanović, Peter Kozák, Milojko Lazić, Janos Szanyi, Dušan Polomčić, Balazs Kovács, Jozsef Török, Saša Milanović, Bojan Hajdin, Petar Papić (2011)
    ... ofwater issues and of sustainable use of water and its protection from pollution; 6) developing tools for appropriate groundwater management and monitoring at all levels. 4.9.2 Study Area The aquifer system under study is located between the Danube and Tisa (Tisza) rivers and extends to the vicinity ...
    ... this proiect numerous activities were undertalmonitoring network, the creation of a GW initial database, common workshops and seminars for local capacity building, and water-saving promotional activities ...

  • 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
    ... concluded that implementation of a system for monitoring and supervising of risk, or for maintenance centered to risk can be initially expensive. However, the model presented here is not more demanding or costly than any other model for risk monitoring and assessment. 6. Conclusions In this paper ...
    ... defined objective (preventing, disabling, or slowing down the realization of a goal) can be considered a risky event. Managing, controlling, and monitoring the risk of mining machine failure is a highly complex task. In order to be able to incorporate risk management, it is necessary to adopt extensive ...
    ... defined objective (preventing, disabling, or slowing down the realization of a goal) can be considered a risky event. Managing, controlling, and monitoring the risk of mining machine failure is a highly complex task. In order to be able to incorporate risk management, it is necessary to adopt extensive ...

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

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

  • Geneza i uslovi cirkulacije voda kompleksnih karstnih sistema Kučajsko-Beljaničkog masiva

    Ljiljana M. Vasić (2017-07-14)
    postupaka koji je primenjen u cilju definisanja zona prihranjivanja i veze izmeđupodzemnih i površinskih voda, vremena koje voda provede u podzemlju, pri čemu seformira jedinstven hemijski sastav i temperaturni režim isteklih voda, bili su polaznaosnova za usmerenje na istraživanje karsta i definisanje teme doktorske disertacije.Kučajsko-beljanički masiv se nalazi u istočnoj Srbiji i pripada oblasti Karpatobalkanskogluka i idealan je poligon za istraživanje, obzirom da se u okviru njega nalazejaka karstna vrela i pojave toplih karstnih izvora na relativno malom rastojanju, ...
    karstni sistemi, geneza podzemnih voda, izotopske metode, starost voda,hidrogeohemijski procesi, dubina cirkulacije podzemnih voda, subtermalne i termalnevode
    ... podzemnih voda Kučajsko-beljaničkog masiva, korišćeni su još i podaci monitoring mreže Beljaničkog masiva uspostavljenog 2009 god. (dnevni nivo), kao i merenja izdašnosti izvođena tokom kvartalnih uzorkovanja na monitoring lokacijama. Pored generalne ocene režima podzemnih voda Kučajsko- beljaničkog ...
    ... na globalnom nivou, dok je na lokalnom nivou daleko od linearne. Prošireni monitoring pokazao je različite krive za različite geografske regione, pa se tako uočava jasna razlika između morskih i kontinentalnih monitoring stanica. Odstupanje od globalne veze između temperature i δ18O na regionalnom ...
    ... godinu za Crni Vrh i Ćupriju, korišćeni su podaci sajta Ogimet. U okviru projekta monitoringa zaštićenih prirodnih dobara od strane Ministarstva za zaštitu životne sredine (CKH), postavljena je klimatološka monitoring stanica na Beljanici, odnosno na izvorištu Belosavac (slika 5.33. a i b), gde se ...

  • A Fuzzy Expert Model for Availability Evaluation

    Dejan Ivezić, Miloš Tanasijević, Predrag Jovančić, Radiša Đurić (2019)
    Each technical system within itself carries the great potential danger of possible occurrence of failure and damages. Mining machines are characteristic by great investment values, costs of unplanned shutdowns, complex working conditions, and environment and workers hazards. Systematic monitoring of the mining machinery is of great importance for the management of the mining companies. Availability is the overall concept of quality of service. Includes information regard to operating state, an idle state, a standby state and shut down. The ...
    raspoloživost, ekspertski sistem, fazi teorija, buldozeri
    ... stic by great investment values, costs of unplanned shutdowns, complex working conditions, and environment and workers hazards. Systematic monitoring of the mining machinery is of great importance for the management of the mining companies. Availability is the overall concept of quality of ...
    ... values. The main advantage of presented model is its simplicity and easy practical implementation. It does not request long term recording and monitoring necessary for determination of time state picture. The model could be used for preliminary evaluation and decision making concerning to asset ...

  • INVENTS: A Hybrid Mine Ventilation Planning and Design System

    Lilić Nikola, Stanković Ranka, Obradović Ivan (2013)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...
    hybrid systems, mine ventilation, expert systems
    ... effectiveness. The final phase in the outlined design process is state evaluation and modification. All parameters of mine ventilation obtained by monitoring have to be compared with designed parameters and when differences are identified, specific changes must be made in the planning process. 2. ...
    ... networks as well as • gas distribution in ventilation network. CFD INVENTS Data acquisition Design Im plem entation and m aintenance System monitoring Fig. 2. Global concept of mine ventilation planing and design The results obtained after the desired analysis by SimVent can be exported to VENTEX ...

  • Project BEWARE—Landslide Post-disaster Relief Activities for Local Communities in Serbia

    Biljana Abolmasov, Dobrica Damjanović, Miloš Marjanović, Ranka Stanković, Velizar Nikolić, Sandra Nedeljković, Žarko Petrović (2017)
    ... Nikolić, Sandra Nedeljković, and Žarko Petrović Abstract The project—on harmonization of landslide data and training of municipalities for its monitoring, nicknamed BEWARE (BEyond landslide aWAREness) was implemented by the Geological Survey of Serbia, and the University of Belgrade Faculty of Mining ...
    ... assess more efficiently and more accurately in the future. The project on harmonization of landslide data and training of municipalities for its monitoring, named BEWARE (BEyond landslide aWAREness) was designed to address these issues. The aim was to standardize post-event landslide database, closely ...

  • INVENTS: a hybrid system for subsurface ventilation analysis

    Nikola Lilić, Ranka Stanković, Ivan Obradović (2000)
    Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper we ...
    ... effectiveness. The final phase in the outlined design process is state evaluation and modification. All parameters of mine ventilation obtained by monitoring have to be compared with designed parameters and when differences are identified, specific changes must be made in the planning process. 2. ...
    ... networks as well as • gas distribution in ventilation network. CFD INVENTS Data acquisition Design Im plem entation and m aintenance System monitoring Fig. 2. Global concept of mine ventilation planing and design The results obtained after the desired analysis by SimVent can be exported to VENTEX ...

  • 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

  • Introductory editorial - Special issue: Genesis and protection of groundwater in carbonate aquifer

    Saša Milanović (2019)
    Geochemistry and Petrology

  • 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
    ... sredine). Automatski monitoring kvaliteta vazduha na području Republike Srbije, u okviru CARDS projekta „Supply of equipment for air quality monitoring stations, Serbia“ (EUROPEAID / 124394/D/SUP/YU) [152], organizovala je Agencija za zaštitu životne sredine. Operativni monitoring kvaliteta vazduha ...
    ... životne sredine i organizovanje internog monitoringa zagađujućih materija. U okviru ove ekološke perspektive može da se vrši i obaveštavanje javnosti o rezultatima monitoringa ili da se taj postupak sprovodi kao druga dodatna ekološka perspektiva. Monitoring sistem vazduha može da funkcioniše samostalno ...
    ... u Kostolcu, tako i u zvaničnim izveštajima lokalnih, regionalnih i republičkih organizacija i službi koje se bave monitoringom, praćenjem i izveštavanjem o rezultatima monitoringa zagađenja životne sredine. Osim navedenih metodologija, korišćene su i normativne metode, studija slučaja, metoda ...

  • 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
    ... approach is not good enough because it does not go into the structure of the availability itself and requires a high level of IT support in system monitoring. In this sense, this paper will use the fuzzy theory and the corresponding analytic hierarchy process (AHP) multi-criteria analysis to present a ...
    ... safety. Availability is expressed in quantitative indicators, and as such, is a measure of functional safety, and thus of the quality of service. Monitoring and availability analysis are significant because of the known fact that the machine must, above all, be available for operation, in order to realize ...
    ... approach is not good enough because it does not go into the structure of the availability itself and requires a high level of IT support in system monitoring. In this sense, this paper will use the fuzzy theory and the corresponding analytic hierarchy process (AHP) multi-criteria analysis to present a ...

  • Comprehensive Profiling of Microbiologically Induced CaCO3 Precipitation by Ureolytic Bacillus Isolates from Alkaline Soils

    Olja Šovljanski, Lato Pezo, Jovana Stanojev, Branimir Bajac, Sabina Kovač, Elvira Tóth, Ivan Ristić, Ana Tomić, Aleksandra Ranitović, Dragoljub Cvetković, Siniša Markov (2021)
    MICP process, kinetic study, calcite, vaterite, MALDI-TOF identification, Bacillus licheniformis, Sporosarcina pasteurii
    ... vegetative cells, only spores can survive in this way. Microorganisms 2021, 9, 1691 5 of 20 2.4. The Fourth Step: Kinetics of Ureolysis and pH Monitoring The ureolysis rates were determined by Urea/Ammonia (Rapid) Assay Kit (Megazyme, Vienna, Austria) following the assay procedure. Urea broth was ...
    ... which can be a solution for rapid achievement the sufficient spore concentration in further experiments [45]. 3.4. Kinetics of Ureolysis and pH Monitoring Bacteria can promote calcite precipitation by Urea hydrolysis and environment al- kalization through the production of NH4+ and CO3 2− ions. T ...
    ... Microorganisms 2021, 9, 1691 9 of 20 used to define kinetic parameters and fitting the kinetic models. The same process was performed for pH monitoring and concentration of bacteria during the ureolytic activity (Figure 4). Figure 3. The spore rate in TSB nutrient medium with different pH values ...

  • Geotehnički uslovi izgradnje tunela „Debelo brdo“ na autoputu E-80 Niš - Pločnik

    Dragoslav Rakić, Radojica Lapčević, Irena Basarić Ikodinović, Dragan Lukić (2022)
    Tunel „Debelo brdo“ nazvan je po najizraženijem relјefnom obliku na ovoj drugoj deonici autoputa E-80 Niš – Pločnik. Osnovnu geološku građu na lokaciji tunela čini Mio-Plioceni kompleks heterogenog litološkog sastava. Izgradnja tunela je predviđena delom u otvorenom iskopu dužine 240 m, a delom sa podzemnim iskopom dužine 190 m. U zoni tunela, padina je okarakterisana kao uslovno stabilna, pa bi neadekvatna zasecanja mogla da izazovu klizanja terena. Iz tih razloga, u okviru rada posebno su prikazani geotehnički uslovi izgradnje ...
    Tunel „Debelo brdo“, Geotehnički parametri, Privremene kosine, Šipovi, Podgrada.
    ... 2023-11-27 11:14:40 Geotehnički uslovi izgradnje tunela „Debelo brdo“ na autoputu E-80 Niš - Pločnik Dragoslav Rakić, Radojica Lapčević, Irena Basarić Ikodinović, Dragan Lukić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Geotehnički uslovi izgradnje tunela ...

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

    Ljiljana Vasić, Saša Milanović, Tina Dašić (2023)
    Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment, Geography, Planning and Development, Building and Construction
    ... Caphman & Hall: London, UK, 1989; ISBN 0-412-44590-5. 2. _ Stevanović, Z.; Ristić-Vakanjac, V.; Milanović, S.; Vasić, L.; Petrović, B. Značaj monitoringa podzemnih voda u karstu Srbije. In Proceeding;ss of the 7th Symposium on Karst Protection 2011, Bela Palanka, Serbia, 21–22 May 2011; pp. 35-42 ...
    ... og fakulteta Univerzitet u Beogradu, Belgrade, Serbia, 1984. 15. Milanović,S.; Stevanović, Z.; Vasić, L.; Ristić-Vakanjac, V. 3D Modeling, and monitoring of karst system as a base for its evaluation and utilization—A case study from eastern Serbia. Environ. Earth Sci. 2014, 71, 525–532. [CrossRet] ...

  • Formative evaluation of e-learning projects with the logical framework approach

    Roberto Linzalone, Giovani Schiuma, Ivan Obradović, Ranka Stanković (2015)
    ... Foundation, Evaluation Handbook, available at: www.wkkf.org (accessed november 2013), 1998. [12] Shapiro J., Monitoring and Evaluation, available at: http://www.civicus.org/new/media/Monitoring%20an d%20Evaluation.pdf (accessed 24 april 2014)., 1996. [13] Office of Government Commerce, Managing ...

  • Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)

    Ljiljana Vasić, Saša Milanović, Anita Puskás-Preszner, Laszlo Palcsu (2020)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change