Претрага

Упит dcterms_subject_txt:mine planning

226 items

  • Model predviđanja potresa od miniranja na površinskim kopovima primenom simulacione metode Monte Karlo i fazi logike

    Milanka N. Negovanović (2015-06-30)
    Modeliranje predviđanja potresa tla od miniranja primenom fazi logike i metode MonteKarlo zasnovano je na podacima dobijenim terenskim merenjima potresa uzrokovanihminiranjem. Promenljive modela definisane su analizom parametara bušenja i miniranjaminskih serija, kao i velosigrama izmerenih potresa od miniranja. Iskorišćene suprednosti fazi logike u implementaciji mnogo većeg broja ulaznih i izlaznih veličina zamodeliranje u odnosu na postojeće empirijske modele. Na osnovu identičnih podataka,dobijen je regresioni model predviđanja potresa, da bi se izvršilo testiranje novogmodela. U cilju povećanja pouzdanosti modela predviđanja, ...
    model, predviđanje potresa, miniranje, površinski kop, Monte Karlo, fazilogika, regresiona analiza, FFT analiza, spektri odziva, pomeraj pukotina
    ... rudarstvo USBM (en. the United States Bureau of Mines) [19] pod nazivom Structure Response and Damage Produced by Ground Vibration From Surface Mine Blasting (Odziv objekata i oštećenje uzrokovano vibracijama tla od miniranja na površinskim kopovima) autora Siskind Univerzitet u Beogradu, Rudarsko ...
    ... probušenja, veličine i kvaliteta čepa, postojanja mekših proslojaka, itd. 2.2 MEHANIZAM EKSPLOZIJE U NEOGRANIČENOJ ČVRSTOJ SREDINI Dejstvo eksplozije mine u homogenoj čvrstoj neograničenoj sredini [44], gde ne doseže do slobodne površine, javlja se u svim pravcima, podjednakom silom, a talas eksplozije ...
    ... stenske mase na dovoljnom rastojanju, kako bi novoformirana površina bila stvarno slobodna, slika 2-10. Nedovoljno vreme usporenja uslovljava dejstvo mine u narednom redu u stešnjenim uslovima bez slobodne površine, odnosno u uslovima povećanog opterećenja, čime se smanjuje efikasnost drobljenja stenske ...

  • The Importance of Detailed Groundwater Monitoring for Underground Structure in Karst (Case Study: HPP Pirot, Southeastern Serbia)

    Marina Čokorilo Ilić, Ana Mladenović, Marina Ćuk, Igor Jemcov (2019)
    Geography, Planning and Development,Aquatic Science,Biochemistry,Water Science and Technology

  • Primena AHP и WoEmetode u proceni podložnosti terena na kliženje za područje opštine Krupanj

    Biljana Abolmasov, Jelka Krušić, Katarina Andrejev, Miloš Marjanović, Ranka Stanković, Uroš Đurić (2017)
    ... landslide susceptibility distribution at municipality scale, and can be successfully used for further landsli- de risk assessment or large scale planning. Key words: landslides, AHP method, WoE method, landslide susceptibility map Adresa autora: 1,2,3,4 i 5) Univerzitet u Beogradu, Rudarsko-geološki ...
    ... Recognition Letters, Vol 27, pp. 861–874, 2006. [9] Fell R. et al. Guidelines for landslide susceptibility, hazard and risk zoning for land use planning, Engi- neering Geology 102, pp.85–98, 2008. [10] Filipović I, Veselinović M, Rajčević D, Bodić D, Petronijević S, Rakić M, Gagić D, Milićević M ...

  • 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

  • Determining the Availability of Continuous Systems at Open Pits Applying Fuzzy Logic

    Miljan Gomilanović, Miloš Tanasijević, Saša Stepanović (2022)
    This work presents a model for determining the availability of continuous systems at open pits by applying fuzzy logic and fuzzy inference systems. The applied model was formed by the synthesis of independent partial indicators of availability. The model is based on an expert system for assessing the availability of continuous mining systems. The availability of the system, as a complex state parameter, is decomposed into the partial indicators, reliability, and convenience of maintenance, and the fuzzy compositions, used ...
    системи, континуални систем експоатације, површински коп, рударство, расположивост, фази логика, max–min композиција, min–max композиција

  • Development of terminological resources for expert knowledge: a case study in mining

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Aleksandar Cvjetić (2015)

  • Evaluation And Perspectives Of Underground Coal Mines In Serbia

    Vladimir Milisavljević, Milena Lekić, Ivica Ristović, Vojin Čokorilo, Aleksandar Cvjetić (2017)
    ... non-producing mine whose workers are hired as contractors in other mines. These mines are dispersed throughout Serbia, and they are producing various types of coal, as given in Table 1. Table 1. Mines, location, type of coal produced and number of workers (as of March, 2017) Mine Town / Municipality ...
    ... Strmosten pit in REMBAS mine, Lubnica and Štavalj) and for closure of those mines without potential (Tadenje and Jarando pits of Ibarski mines, Senjski rudnik pit of REMBAS, Bogovina and Vrška Čuka). This approach leaves Jasenovac mine and Block IV pit of REMBAS mine in between these two groups ...
    ... analysis using GIS and AHP technique. Computers and Electronics in Agriculture, pp 71-82 [7] Saaty, T.L., 1980. The Analytic Hierarchy Process: Planning, Priority Setting, Resource Allocation. McGraw-Hill International, New York, NY, USA. ...

  • Creation of a Training Dataset for Question-Answering Models in Serbian

    Ranka Stanković, Jovana Rađenović, Maja Ristić, Dragan Stankov (2024)
    Razvoj i primena veštačke inteligencije u jezičkim tehnologijama značajno su napredovali poslednjih godina, posebno u domenu zadatka odgovaranja na pitanja (Question Answering - QA). Dok su postojeći resursi za QA zadatke razvijeni za glavne svetske jezike, srpski jezik je relativno zanemaren u ovoj oblasti. Ovaj rad predstavlja inicijativu za kreiranje obimnog i raznovrsnog skupa podataka za obučavanje modela za odgovaranje na pitanja na srpskom jeziku, koji će doprineti unapređenju jezičkih tehnologija za srpski jezik. Pored brojnih istraživanja o jezičkim modelima ...
    veštačka inteligencija, obrada prirodnog jezika, jezički resursi, anotirani skupovi, ekstrakcija informacija, odgovaranje na pitanja

  • Using technology for knowledge transfer between academia and enterprises

    Ivan Obradović, Ranka Stanković (2014)
    ... some are in-house tools developed by the University of Belgrade Human Language Technology Group. Learning resources are both academic: course planning materials, video lectures, thematic content, and entrepreneurial: case studies, best practice examples, expert presentations and software demonstrations ...
    ... software to support the development, use, reuse and delivery of learning content; • Learning resources - both academic, in the form of course planning materials, video lectures, thematic content and the like, supported by evaluation tools, and entrepreneurial, such as case studies, best practice ...

  • Планирање – функција менаџмента пројекта минералне индустрије

    Жељко Вучић (2024)
    Просторно планирање је комплексан мултидисциплинаран процес утврђивања оптималног распореда људи, добара и делатности на одређеној територији ради његове оптималне употребе. Циљ просторног планирања је распоредити и најбоље користити садржаје у простору што је неизводљиво без детаљних анализа потенцијалних, штетних агенаса на целокупно подручје и његово становнисштво. Утицај рударства на окружење вишеструко се повећао након увођења технологије површинске експлоатације минералних сировина, али и свеукупног лошег дејства на животну средину. Под појом животне средине подразумевамо природне и радом створене вредности у ...
    просторно планирање, урбанистички план, кречњак, заштита животне средине, економски аспекти
    ... V. (2001): Sustainability from a National Spatial Planning Perspective. In: Towards a New Role of Spatial Planning. OECD Proceedings, Paris. 17. Blowers A.(1993): Planning for a Sustainable Environment: A Report by the Town and Country Planning Association. London: Earthscan. 18. Baker S, Kousis ...
    ... 1pxkaBab»>y pe/ta Ha ojpebeHoj reparopuju H oMoryhanBa 3amrrHTy Ba)KHHX JaBHHX HHTepeca (Boxuh, 2014). IIpocropHo runaHuHpame (epr-. fown and country planning) y cCMacHy y KOJeEM JlaHac TIOCTOJH OTTIOu6JIO Je CBOJ pa3BOJ KpajeM 19-or H moueTKOM 20-or Beka. IIpBu nponucH y Toj oOmacrH cy rpe/icrapbanmi ...

  • 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

  • Efficiency and lifetime of medium voltage transformers

    Snežana Aleksandrović, Vesna Damnjanović (2017)

  • Multiple-Criteria Decision-Making in Mine Development Planning

    Sanja Bajić (2023)
    The Borska Reka ore deposit is an experimental location where developed methodologies have been applied. It is the largest ore body within the Bor mining complex, which has been the subject of numerous studies and analyses for more than three decades. The paper focuses on the application of FAHP and the VIKOR method to address ranking of alternatives and select the optimal mining method by means of fuzzy multicriteria optimization.

  • Using Metadata For Content Indexing Within An OER Network

    Ranka Stanković, Olivera Kitanović, Ivan Obradović, Roberto Linzalone, Giovanni Schiuma, Daniela Carlucci (2014)
    ... and entrepreneurial knowledge,by enabling higher education institutions to publish various academic learning resources e.g. video lectures, course planning materials, or thematic content, whereasenterprises can present different forms of expert knowledge, such as case studies, expert presentations ...
    ... and entrepreneurial knowledge,by enabling higher education institutions to publish various academic learning resources e.g. video lectures, course planning materials, or thematic content, whereasenterprises can present different forms of expert knowledge, such as case studies, expert presentations on ...

  • Preparation of Multimedia Document “YU Rock Scene”

    Milena Obradović, Aleksandra Arsenijević, Mihailo Škorić (2017)
    SUMMARY: This study will present the preparation process of a multimedia document entitled YU ROCK SCENE in which participants were senior students of undergraduate studies of the Department of Library and Information Science at the University of Belgrade Faculty of Philology during the academic year 2014/2015, as a part of the subject Multimedia Documents. This study gives an overview of the historical development of rock and roll in the territory of the former Yugoslavia, rock scene in Yugoslav republics, ...
    multimedia document, library science, information science, rock and roll, music, Yugoslavia
    ... influence of rock music on other arts and media. Special at- tention was given to the technical implementation of the project, including stages such as planning, processing, designing and creation of the multime- dia document itself. KEYWORDS: multimedia document, library science, information science, rock ...

  • Geotechnical Conditions for Construction of Savski Trg Metro Station as a Part of the Belgrade Metro Line One

    Nemanja Stanic, Dragoslav Rakic, Josip Isek, Slavoljub Simic (2024)
    In order to solve serious traffic congestion in Belgrade, a number of studies regarding the Belgrade Metro construction have been carried out since 1973. However, only in 2019, the routes of the future metro lines 1 and 2 were de-fined as a part of the General Metro Construction Project. The lines are de-signed to intersect at the location of Sava Square, where an interchange met-ro station will be built. It represents a complex geotechnical structure consist-ing of three different ...
    metro station, geotechnical modelling, displacements

  • A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia

    Boban Pavlović, Dejan Ivezić, Marija Živković (2021)
    When assessing the potential of renewable energy alternatives for electricity generation, it is necessary to implement a multi-perspective approach that includes economic, technical, environmental, and socio-political criteria. For the evaluation of criteria and alternatives, the Fuzzy Analytical Hierarchy Process (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a fuzzy numerical value scale for the assessment of expert judgments and energy indicators provides a more sensitive ...
    Proizvodnja električne energije, Obnovljivi izvori energije, Višekriterijumsko odlučivanje, Srbija
    ... generation. The pre- sented approach of the integrated assessment concerning con- flicting criteria might serve decision-makers in long-term energy planning. The proposed FAHP model which involves pairwise compar- isons based on experts‘ judgments and energy indicators is ap- plied to assess the selected ...
    ... dated information regarding RESs’ potential, prices, environmen- tal impact, etc. for electricity generation. For more precise pri- oritization and planning, more detailed information about char- acteristics of specific location is necessary (solar irritation, wind speed, characteristics of river flow ...
    ... development strategy of the republic of serbia for the period by 2025 with projections by 2030. Ministry of Mining and Energy, Department for strategic planning in energy sector, Belgrade, available at: https://www.mre.gov.rs/doc/efikasnost- izvori/23.06.02016%20ENERGY%20SECTOR%20DEVELOPMENT%20STRATEGY% 2 ...

  • Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining

    Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić (2021)
    Geology,Geotechnical Engineering and Engineering Geology
    ... ERC 1400-30/7 high-capacity excavators from lignite quarries. IOP Conf. Ser. Mater. Sci. Eng. 2016, 161, 012081. [CrossRef] 5. Mine Planning and Equipment Selection. Mine Plan. Equip. Sel. 2014, 303–310. [CrossRef] 6. Jovančić, P.; Ignjatović, D.; Novaković, D. Optimisation of Coal Cutting Bits ...
    ... 15 of 17 of variation (and over 20%), this functional dependence needs to be confirmed only by a quantitative increase in the number of tests when planning future research in this area. σ σ Figure 21. Linear approximation of the modified wedge test results. Table 4. Linear function parameters for ...
    ... Torbica, S.; Ignjatović, D.; Stevanović, D.; Hamović, J.; Jovanović, M. Main Mining Project of Coal and Overburden Exploitation at the Underwater Mine ‘Kovin’ in the Undefended Part of the Field ‘A’; Faculty of Mining and Geology, University of Belgrade: Belgrade, Serbia, 2009. 19. “Bager-1”. Available ...

  • A Model for Determining Fuzzy Evaluations of Partial Indicators of Availability for High-Capacity Continuous Systems at Coal Open Pits Using a Neuro-Fuzzy Inference System

    Miljan Gomilanović, Miloš Tanasijević, Saša Stepanović, Filip Miletić (2023)
    This paper presents a model for determining fuzzy evaluations of partial indicators of the availability of continuous systems at coal open pits using a neuro-fuzzy inference system. The system itself is a combination of fuzzy logic and artificial neural networks. The system availability is divided into partial indicators. By combining the fuzzy logic and artificial neural networks, a model is obtained that has the ability to learn and uses expert judgment for that learning. This paper deals with the ...
    системи, континуални системи експлоатације (роторни багер-транспортер-дробилично постројење), рударство, расположивост, меко рачунарство, фази логика, ANN, ANFIS

  • The Importance of Geotechnical Investigations for the Construction of Transfer Station „Prelići“ on Landfill in Cacak – Serbia

    Dragoslav Rakić, Irena Basarić, Jovana Janković, Tina Đurić (2019)
    For the purpose of the facilities construction within the transfer station „Prelici“ in Cacak, specific geotechnical investigations were carried out based on which the technological project with the facilities schedule was developed. Significant deviations in relation to the presented results were determined during earthworks, so the additional geotechnical investigation works were carried out. Since the new investigation works have determined a different cross section of the terrain, it was proposed to move the planned facilities which led to the ...
    landfill, geotechnical investigations, transfer station
    ... relocation of facilities, • technological connection of planned units, • use of existing infrastructure facilities and their integration into existing planning guidelines and • fitting structures and equipment into the urban industrial environment. In addition, an analysis of the available waste composition ...