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Упит dcterms_subject_txt:groundwater control system

796 items

  • Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software

    Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić (2024)
    The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...
    optimizacija, 3D model, bušenje, miniranje, O-Pitblast, softver

  • Available technological procedures for capturing CO2 in the industrial and power generation sectors

    Lola Tomić, Vesna Karović Maričić, Dušan Danilović, Branko Leković, Miroslav Crnogorac (2021)
    Climate change is a major environmental issue caused by anthropogenic emissions of greenhouse gases. Capturing CO2 and storing it in suitable geological formations is one of the main technological solutions that can provide mitigation of CO2 emission into the atmosphere. Capturing CO2 represents the first phase in process of carbon capture and storage, and includes the application of various technologies for the separation of CO2 produced in the energy and industrial sectors. There are four main systems for capturing ...
    capturing CO2, power plants, CO2 capture systems, CO2 technologies
    ... compression and transportation through pipeline system and injection in different geological formations [2,3]. Capturing CO2 is the most expensive phase in the carbon capture and storage process and it accounts for approximately 75 % of overall costs in the CCS system [4]. There are a large number of CCS ...
    ... refineries but it has limited use in power plants. For power generation, pre-combustion system can be combined with an integrated gasification combined cycle power plant (IGCC) [8]. Compared to post-combustion system, the gasification process is operated at the high pressure and synthesis gas contains ...
    ... its high CO2 capture efficiency and small capital and operational investments which reduce costs [23,29]. This process is fully automated, easy to control and operate [29]. Membrane technology has great potential for capturing CO2 from different gas streams such as: CO2/H2 separation in pre-combustion ...

  • Hidrodinamički proračun zaštite površinskog kopa Drmno od podzemnih voda u periodu 2018-2022. godina

    Dušan Polomčić, Tomislav Šubaranović, Zoran Stojićević (2019)
    Površinski kop lignita Drmno nalazi se u blizini velikih reka (Dunav i Mlava), zbog čega eksploatacija otkrivke i lignita u velikoj meri zavisi od sistema zaštite od podzemnih voda. Ukoliko je sistem zaštite od podzemnih voda dobro isplaniran, a njegov kapacitet dobro proračunat, onda će se eksploatacija obavljati u suvoj sredini, što podrazumeva sigurnu proizvodnju otkrivke i lignita. U današnje vreme uz primenu adekvatnih softvera olakšano je kvalitetno planiranje i proračunavanje sistema za zaštitu površinskih kopova od podzemnih voda. ...
    odvodnjavanje, podzemne vode, površinski kop, lignit, Drmno

  • Дефинисање хидрауличког механизма истицања карстних подземних вода применом биваријантне анализе временских серија

    Вељко Мариновић (2022)
    Bivariate analysis was applied within the cross-correlation in time and the gain function as part of the cross-spectral function in the frequency domain, to the time series of precipitation and discharge of the Oko Bijela and Bosna karst springs in the period 2015-2020. Bivariate analysis showed a very fast reaction of the Oko Bijela spring and a reaction delay at the Bosna spring, which indicate a very weak amortization of the input signal within the Oko Bijela system and ...
    карст, подземне воде, механизам истицања, крос-корелација, спектрална анализа

  • Using technology for knowledge transfer between academia and enterprises

    Ivan Obradović, Ranka Stanković (2014)
    ... of components, namely: • Tools - composed of FMG CMS, an in-house Content Management System (CMS) developed by the University of Belgrade, Faculty of Mining and Geology (FMG), the Learning management system encompassing several specific content and learning management software tools, and Development ...
    ... design principles and licensing tools to promote open publishing of materials. The content management system FMG CMS was initially developed within FMG as a custom course management system to support blended learning, which started gaining popularity at FMG in the last decade. Namely, where teachers ...
    ... 798 Figure 1: Conceptual map of TEL platform Besides the FMG custom course management system and Moodle, the Learning management system includes other powerful tools such as Adobe Connect for eLearning, Adobe Connect for webinars, and EdX, a massive open online ...

  • An Approach to Management Decision Support: The Coal Mine Pljevlja Management Information System

    Božo Kolonja, Ranka Stanković, Filip Vuković, Ivan Obradović (2006)
    In this paper we describe the approach that has been used in the development of the Management Information System (MIS) in the Coal Mine Pljevlja in Montenegro. The methodology of this approach was based on new information technologies and management techniques which have already been successfully applied in other related fields. Its main goal was to introduce modern management techniques to mining, adapted to specific features of the mining industry, its operations and environment, thus enabling the tactical management ...
    ... maintenance information; and MIS - management information and decision support system. TIS provides real time information generation during the production process organized in shifts for improved management control. As each machine works, its action is recorded in the TIS database. As a web ...
    ... MIS is an intelligent system for supporting decision making in the mine, developed within the Technological Information System (TIS), using a combination of different IT technologies such as .NET, OLTP, OLAP, WEB, SQL Server Reporting Services and others. It is a system for direct analytical data ...
    ... connect this program system with the program system for technical graphics, because practically all maintenance works are carried out using technical documentation and corresponding drawings. Maintenance works are defined per every type of equipment. The basic module of this system is for issuing ...

  • Application of machine learning for diagnosing the operation of a deep well pump in oil production

    Maja Trikić (2024)
    This paper will thoroughly examine how machine learning can improve the diagnosis of deep well pumps by analyzing the role and function of the pumps, dynamograms, sensor technologies, and diagnostic methods.Our analysis will provide insights into modern techniques and approaches for enhancing the performance and reliability of oil production systems, targeting cost reduction and increased operational efficiency.
    deep well pump, dynamograms, machine learning, diagnostics of operating coditions,Random Forest, XGBoost
    ... automatically adjust system parameters based on new data. For example, if changes in operating conditions or pump performance are detected, algorithms can automatically adjust parameters to maintain optimal operation. Machine learning can assist in continuous monitoring and quality control of pump operation ...
    ... pressures and are used in applications such as air conditioning systems and process control. Figure5.3 Capacitive sensors 4. Optical sensors - these sensors use light beams to measure changes in a physical system caused by pressure. Optical sensors are often used in situations where wireless data ...
    ... with load cells and position sensors, a pump shut-off control device, a control panel, and a motor drive, and in some cases, a variable-speed drive. Additionally, a radio for receiving and sending information to/from SCADA (Supervisory Control and Data Acquisition) systems is required. Due to i ...

  • Negative Impact of Backwater Levels of Danube River and its Tributaries to the Groundwater Regime in Meliorated Riverside Areas

    Predrag Pajić, Uroš Urošević, Dušan Polomčić, Milan Dimkić (2016)
    This paper describes updated calculation methodology of Danube backwater impact, occurred as a consequence of “Đerdap I” hydropower plant operation, onto the meliorated riverside areas. This methodology is based on hydrodynamic analysis of groundwater regime (size, duration, level and inflow changes) and quantification of melioration areas impairment which is caused by “Đerdap I” hydropower plant operation. By comparing the groundwater regime elements, obtained by variant hydrodynamic calculation in mathematical models for natural – not backed up and actual – ...
    HPP ''Djerdap 1'', backwater influence, groundwater regime, hydrodynamic analysis, melioration area, drainage system, additional energy engagement

  • Application of Project Management Process on Environmental Management System Improvement in Mining-Energy Complexes

    Jelena Malenović Nikolić, Dejan Vasović , Ivana Filipović , Stevan Mušicki, Ivica Ristović (2016)
    menadžment, rudrastvo i energetski kompleksi, okruženje, održivi razvoj, mrežno planiranje
    ... The advantage of parallel implementation of the control of prescribed procedures and the evaluation of work results lies in the improvement of management activities. The environmental management model contains input elements (necessary for the system to function) and output elements, which depend on ...
    ... c precipitation runoff from roads into groundwater courses 3 3 1 + 0 + 1 + 0 + 0 + 1 27 18 Oil runoff by atmospheric precipitation from roads and loading/unloading sites 3 3 1 + 0 + 1 + 0 + 0 + 1 27 19 Road sprinkling and polluted water runoff into groundwater courses 1 2 0 + 0 + 0 + 0 + 0 + 1 3 20 ...
    ... tal system modeling in energy industry is based on the use of analytical calculations, statistical analyses, definitions of economic parameters, or assessment of energy losses. System analysis based on a simulation of discrete events (representation of the real state of the environmental system, stochastic ...

  • Upper Miocene depositional environments of the Kikinda-Mokrin High (Serbia)

    Saša Ivanišević, Dejan Radivojević (2018)
    Exploration for oil and gas in mature areas, such as the Pannonian Basin, can benefit from reexamination of old data using more advanced modern workflows that focus on the temporal and spatial aspects of sediment deposition. Specifically, we apply a new environment of deposition model that interprets the Upper Miocene- Pliocene sediments as being deposited in a rapidly filling basin characterized by quick shelf edge progradation from the northwest toward the southeast. Reconstruction of this shelf edge trajectory reveals ...
    naftna geologija, depozicione sredine, formacije, Panonski basen

  • Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)

    Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)

  • Simulation of Hydrogeological Environmental Discharge in Case of Interruption Constant Observations

    Marina Čokorilo Ilić, Dragoljub Bajić, Miroslav Popović (2024)
    Monitoring Network, data, hydrogeological environment, tunnel, simulation

  • Building learning capacity by blending different sources of knowledge

    Ivan Obradović, Ranka Stanković, Olivera Kitanović, Dalibor Vorkapić (2016)
    ... concerned, a language support system is developed within the BAEKTEL metadata portal. Besides sustaining expert terminology in a multilingual environment this language support system will also improve the search and browse functions of BMP. The BMP language support system, whose structure is outlined ...
    ... facilitate the use of these materials in a multilingual environment, a language support system is integrated into the BMP, consisting mainly of electronic terminological resources and services. This system will greatly improve the search and browse functionalities within the complex BAEKTEL network ...
    ... language support system. Besides Serbian, such resources exist for many other languages, including English and Russian, which are also envisaged as OER languages within the BAEKTEL network. Besides morphological dictionaries, for full functionality of the language support system grammars are also ...

  • Hydrochemical features and their controlling factors in the Kucaj-Beljanica Massif, Serbia

    Fen Huang, Ljiljana Vasic, Xia Wu, Jianhua Cao, Saša Milanovic (2019)
    Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • VENTEX: An Expert System for Mine Ventilation Systems Analysis

    Ranka Stanković, Nikola Lilić, Ivan Obradović (1996)
    Analiza sistema za ventilaciju je komleksan proces, koji bazira na proračunu brojnih parametara, koji se odnose na: stanje mreže, provetrenost, stabilnost sistema, gubitke vazduha, klimatske uslove, gasno stanje, ugroženost od požara i opasne prašine. Navedeni problemi se uspešno rešavaju paketom SimVent, ali potpuno razumevanje i korišćenje dobijenih rezultata zahteva angažovanje iskusnog specijaliste iz oblasti ventilacije. Rešenje je nađeno u kreiranju ekspertnog sistema VENTEX, čija je baza znanja formalizacija ekspertskog znanja iz oblasti ventilacije rudnika. U radu je prikazana metodologija ...
    ekspertni sistem, ventilacija
    ... and easy manipulation of input data and control over parts of the problem- solving process. It also offers suggestions and recommendations to the user which could contribute to the improvement of the overall performance of the mine ventilation system. 5. CONCLUSION In this paper first ...
    ... the strategy of mine ventilation system analysis used in the VENTEX system and it formalization using a modification of the object- oriented analysis model as well as the basic architecture of the system and outlines the main features of the implemented system. 1. INTRODUCTION One of the ...
    ... The model was the basis for the implementation of the system in an object-oriented expert system shell. 3. ARCHITECTURE OF THE VENTEX The main components of the VENTEX system are basically a consequence of the fact that this system represents an upgrade of the existing numerical software ...

  • The influence of Al<sup>3+</sup>ion on porcine pepsin activity<i>in vitro</i>

    Vesna M. Pavelkić, Kristina R. Gopcević, Danijela Z. Krstić, Marija A. Ilić (2008)
    The in vitro effect of Al3þ ions in the concentration range 1.7·1026M–8.7·1023M on pepsin activity at pH 2, via kinetic parameters and its electrophoretic mobility was evaluated. Kinetic study demonstrated the existence of an activation effect of Al3þ at pH 2 on pepsin molecule. Kinetic analysis with respect to concentrations of haemoglobin showed that Al3þ ions increase the maximal velocity (Vmax) and kcat values rather than apparent affinity for substrate (KS) implying the non-competitive nature of activation which indicated ...
    Пепсин, алуминијум, кинетика, активација, електрофоретска мобилност
    ... acidified with 0.0!M HCI, pH2), carried out on Beckman UV 5260 UV-VIS spectrophotometer with an electro-thermaltemperature control cell unit. The temperature control performed with DANA - Digital voltmeter model 4800 with chromel-alumel thermocouples. A quartz cell with a 1 cm path length ...
    ... enzyme-catalyzed measured rate of hydrolysis of denatured haemoglobin (Hb) substrate was used for evaluation of enzyme activity in the absence (control) and presence of Al ions [26]. Pepsin activity was determined in an incubation medium containing: 1mL of pepsin solution (20 ug/mL. in 0.0,M ...
    ... concentrations of metal ions induced increase of enzymatic activity. Values are expressed as the percent of increased activity related to the control, which considered as 100%. Aluminium was found to stimulate the enzyme activity 250 _ APP1(M % of activation »0 | IA ](M) % s | . 0 a 1.7x10 ...

  • Assessments of effects of implementation of strategic plans for development of Belgrade District heating system

    Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Miodrag Grujić (2020)
    The district heating system (DHS) is one of the key elements of the Belgrade energy system. Overview of the current state and basic characteristics of the DHS are presented in this paper. The focus is on the planned development of DHS and on the analyses of effects of realization of measures and projects defined by strategic documents related to DHS which are adopted by city authorities (Development Strategy of DHS and Strategy of Belgrade Development). Two exploratory scenarios were ...
    Daljinsko grejanje, LEAP, Primarni energetski faktor, Uvozna zavisnost, CO2 emisija

  • Linearization of Input Signal as a Necessary Tool in Stochastic Modeling of Karst Groundwater

    Veljko Marinović (2021)
    Modelling of karst hydrogeological systems is a very complicated task, bearing in mind that for a deterministic model one should know the internal physical processes of precipitation transformation into discharge, while for a stochastic model nonlinear dynamic systems such as karst should be simulated by linear regression equations. Stochastic models need linearization of input time series due to often large residual in the recession period. This occur because the model is not able to absorb single rain episodes, which ...
    karstne podzemne vode, stohastičko modeliranje, transfer funkcije, pokretni prosek

  • Overwiew of In-Pit Crushing & Conveying Technology in Open Pit Mines

    Ali Nasirinezhad, Dejan Stevanović, Dragan Ignjatović, Petar Marković (2021)
    The conditions under which contemporary surface mining operations is carried out obviously becoming increasingly complex. In such complex conditions, the optimization of haulage systems as the technological phase with the largest share in the total operating costs, is very important from the aspect of achieving profitability of the mining project. In a large number of cases, the application of traditional haulage systems with trucks (as the most dominant type of haulage in open pit mines) does not lead to ...
    In Pit Crushing and Conveying, IPCC, open pit mining, haulage, optimization, costs saving

  • Development of an integrated model for open-pit-mine discontinuous haulage system optimization

    Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović (2024)
    equipment selection, mine mechanization, expert judgment, linguistic variables, MCDM, FAHP