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Упит dcterms_subject_txt:seismic effects of blasting

2839 items

  • 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

  • Asbestos-Based Pottery from Corsica: The First Fiber-Reinforced Ceramic Matrix Composite

    Philippe Colomban, Aleksandar Kremenović (2020)
    Asbestos-containing pottery shards collected in the northeast of Corsica (Cap Corse) and dating from the 19th century, or earlier, have been analyzed by SEM-EDS, XRPD, FTIR and Raman microspectroscopy. Blue (crocidolite) and white (chrysotile) asbestos fiber bundles are observed in cross-sections. Most of the asbestos is partly or totally dehydroxylated, and some transformation to forsterite is observed to occur, indicative of a firing above 800 C. Examination of freshly fractured pieces shows a nonbrittle fracture with fiber pull-out, consistent with ...
    asbestos, CMC, Corsica, fiber, pottery
    ... 3597 13 of 18 3.5. Heating-Induced Effects and Remarks on Preparation Procedure Most of the spectra exhibiting, a serpentinite-like signature show a rather broad ca. 680 cm-! peak (full width at half height between 50 and 100 cm”!,asin Figure 5 (sp4) and Figure 8 (sp3)), alttough the FWHH of the ...
    ... The demonstration of the possibility of identifying, the residues of metallurgical use in archaeological shards opens a new field of research, as this type of analysis has only been conducted to assess potential domestic uses (food residues). Materials 2020, 13, 3597 14 of 18 4. Conclusions ...
    ... on of the mineral phases in amounts more than ca. 1%. 3.2. Evidence of Asbestos Fibers Visual and optical microscopic examination can easily detect the presence of long fibers: see in particular, in Figure 1, the right-hand side of sample d (close to the scale) and the top left-hand side of sample ...

  • Upravljanje proizvodnjom nafte – novi alat na bazi fazi logike

    Мирослав Црногорац, Душан Даниловић, Лола Томић (2020)
    ... znanja. Abstract: In this paper the effects of locus of control on the implementation of knowledge management in organizations is analyzed. The subject and the problem of the research are presented through the presence of certain types of employee locus of control and its impact on knowledge management ...
    ... anywhere: The evolution of telework and its effects on the world of work. IUSLabor. [6] Bailey, D. E., Kurland N. B. (2002) A review of telework research: Findings, new directions, and lessons for the study of modern work. Journal of Organizational Behavior: The International Journal of Industrial, Oc ...
    ... protection of natural resources, protection from the effects of various environmental risk factors (climate change, natural disasters, inadequate landfills, air pollution, noise, accidents, etc.). Optimizing the management of IT technologies should contribute to faster introduction of "cleaner and ...

  • Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu

    Nikoleta Aleksić (2021)
    ... 191-204. 41. Anon, 2009. Conclusion regarding the peer review of the pesticide risk assessment of the active substance penoxsulam, EFSA Scientific Report. 42. Zheng, Z., Zhang, T., 2012. Characterization, Modes of Action and Effects of Trifluralin: A Review, in: Herbicides - Current Research and ...
    ... Veljković, V.B. (2013). The effects of cosolvents on homogeneously and heterogeneously base-catalyzed methanolysis of sunflower oil. Fuel, 107, 493-502. [13] Troter, D.Z., Todorović, Z.B., Đokić-Stojanović, D.R., Stamenković, O.S., Veljković, V.B. (2016). Application of ionic liquids and deep eutectic ...
    ... Liu H., Chen B., Li L., Wu F. (2019) Impacts of polystyrene microplastics on the behaviour and metabolism in a marine demersal teleost, black rockfish (Sebastes schlegelii), Journal of Hazardous Materials, 380. [2] GESAMP (2015) Sources, fate and effects of microplastics in the marine environment: a ...

  • Remedijacija otpadnih voda Rudnika prirodnim zeolitom

    Igor Veličković (2024)
    U radu je razmatrano prečišćavanje otpadnih flotacijskih voda sa područja rudnika Rudnik prirodnim zeolitskim tufom sa planine Jastrebac. Prečišćavanje otpadnih flotacijskih voda sa područja rudnika Rudnik prirodnim zeoliskim tufom sa obronaka planine Jastrebac pokazala se veoma efikasnom. Naime, u tri otpadne flotacijske vode utvrđen je povišen sadržaj arsena, hroma, gvožđa, mangana, kao i nikla. Jednostavnim tretmanom zeolitskim tufom iz ovih voda uklonjeni su svi ovi elementi. Sadržaji gvožđe i mangana su sniženi od 95 do 99 %, dok su ...
    flotation waste water, zeolite tuff, purification
    ... paper discusses the purification of waste flotation water from the area of the Rudnik mine with natural zeolite tuff from the Jastrebac mountain. The purification of waste flotation water from the area of the Rudnik mine with natural zeolitic tuff from the slopes of the Jastrebac mountain proved to ...
    ... Major metallogenic units and ore deposits in Yugoslavia. In: Exp. Memoir of the Metallogenic Map of Europe, 1:2500000. UNESCO, Paris, pp. 385—395. Janković, S., 1990. Ore Deposits of Serbia. University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia, pp. 760 (in Serbian, with extended ...
    ... and medieval slag as sources of environmental pollution in the area of the Pb-Zn Mine Rudnik (Serbia) Journal of Geochemical Exploration, Volume 218, 106629. Zdravković, A., Cvetković, V., Pačevski, A., Rosić, A., Šarić, K., Matović, V., Erić, S., 2017. Products of oxidative dissolution on waste ...

  • Површинско распадање керсантита из Тешића мајдана у корелацији са начином обраде на примеру малог степеништа (Београдска тврђава)

    Невенка Новаковић (2024)
    Архитектуру Београда на прелазу 19. у 20. век обележила је употреба керсантита из каменолома Тешића мајдана. Kao камен високих декоративних својстава, керсантит је коришћен за јавне споменике, делове или потпуну изградњу објеката (Народна скупштина Србије, Мало степениште, Народни музеј и др.). Како очување споменика културе изискује познавање својстава уграђеног камена, истраживања су обухватила детаљно проучавање петролошких, хемијских и физичких карактеристика керсантита из Тешића мајданa и узорака камена из споменика Мало степениште (студија случаја). Након детаљног мапирања стања керсантита, лабораторијских ...
    керсантит, Мало степениште, споменик културе, архитектонски камен, физичко-хемијско распадање, мапирање, форме распадања, површинска обрада

  • Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays

    Vladimir Simić, Dragana Životić, Zoran Miladinović (2021)
    Management, Monitoring, Policy and Law,Nature and Landscape Conservation
    ... The resources of bentonite are, after more than forty years of exploration, very large (at least according to the reserves that exist on paper), but the economic effects of that exploration are almost non-existent. Resources of bentonite and bentonitic clays of tens of millions of tonnes have been ...
    ... those are re- serves of A + B + C1 categories), but continuous exploitation of bentonite in Serbia never existed. The main problems of valorisation of most bentonite deposits are relatively small deposits with layers of bentonite of small thickness, mostly medium or poor quality of raw materials, and ...
    ... declare no conflict of interest. References 1. Law on Mining and Geological Exploration. In Official Gazette of the Republic of Serbia; Republic of Serbia: Belgrade, Serbia, 2015. (In Serbian) 2. Law on environmental protection. In Official Gazette of the Republic of Serbia; Republic of Serbia: Belgrade ...

  • Selection of Artificial Lift Methods: A Brief Review and New Model Based on Fuzzy Logic

    Miroslav Crnogorac, Miloš Tanasijević, Dušan Danilović, Vesna Karović Maričić, Branko Leković (2020)
    Artificial lift methods have applications in oil wells where oil production is no longer possible due to natural reservoir energy, so this necessary energy is added by introducing lift methods. In order to achieve optimum production, the selection of an artificial lift method is very important. This paper uses fuzzy logic as a mathematical and conceptual model for selection of the optimal artificial lift method. The outcome or IF-THEN rules, as the central part of the model, is based ...
    mehaničke metode, proizvodnja nafte, fazi logika, donošenje odluka, optimizacija
    ... Fuzzy logic prioritization of failures in a system failure mode, effects and criticality analysis. Reliab. Eng. Syst. Saf. 1995, 50, 203–213. [CrossRef] 29. Petrović, D.V.; Tanasijević, M.; Milić, V.; Lilić, N.; Stojadinović, S.; Svrkota, I. Risk assessment model of mining equipment failure based ...
    ... shows the conceptual model of an expert system for optimized selection of an artificial lift method evaluation on the base of fuzzy interferences of the input data. Energies 2020, 13, 1758 5 of 15 Energies 2020, 13, x 5 of 15 Figure 1. The schematic diagram of the fuzzy model. Parameters ...
    ... center of gravity moves to the right. When the parameters are reduced, the center of gravity moves to the left of the diagram. The uneven shift of the focus to the left side of the diagram is due to a considerable number of parameters being at the limit values (1 or 10). Figure 7. Center of mass ...

  • Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija

    Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić (2016)
    flotacijska jalovišta, životna sredina, višekriterijumska analiza, ekologija, Trepča
    ... Generally, all of the five treated tailings were formed in places that can have harmful effects on the surrounding ecosystem. The situation described here was meant to conduct an analysis and ranking of the tailings by the degree of potential danger to the living environment. The ranking of the analyzed ...
    ... Presentation of criteria of analyzed flotation ponds. Criteria Analyzed Criteria C1 Proximity of water source C2 Proximity of the settlement C3 Proximity of agricultural area C4 Proximity of permanent water flow C5 Quantity of material deposed C6 Existence of the flooding water sources C7 Activity of the tailings ...
    ... process of exploitation of mineral resources and processing of mined ores to cater to the market results, among other things, in a large amount of tailings deposed on tailing ponds. Because of the chemical composition of the material, the increasing amount of waste, and the mismanagement of recovery ...

  • Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining

    Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović (2019)
    Analitički hijererhijski proces (AHP), dozeri, eksploatacija uglja, površinski kopovi
    ... Programme of research in the field of technological development for the period 2011–2019. Conflicts of Interest: The authors declare no conflict of interest. References 1. Billings, R.; Scherer, L. The Effects of response mode and importance on decision-making strategies: Judgment versus choice. Organ. Behav ...
    ... application of the AHP method as one of the most used method of multicriteria decision analysis (MDCA) showed the rank of different types of dozer most commonly used auxiliary machine in open-cast coal mine of Kolubara. The subjects of the analysis were four dozers analysed by a combination of four basic ...
    ... funded by the Ministry of Education and Science of the Republic of Serbia within the framework of Programme of research in the field of technological development projects TR 33039 and TR 33025. Acknowledgments: This paper was realized as a part of the project “Improvement of Lignite Opencast Technology ...

  • 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

  • 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
    ... sensitive to the effects of environmental conditions [58]. SEM micrographs (Figure 10) confirm a high degree of crystallinity on the first incubation day, in most samples, which is defined by well-developed crystal forms characteristic for CaCO3 [59], with average sizes in a range of micrometers. Precipitates ...
    ... Crystallography and Mineralogy, Faculty of Mining and Geology, University of Belgrade, Ðušina 7, 11000 Belgrade, Serbia; sabina.kovac@rgf.bg.ac.rs 5 Department of Physics, Faculty of Science, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia; elvira.djurdjic@df.uns.ac.rs * Correspondence: ...
    ... aphy and Mineralogy, Faculty of Mining and Geology, University of Belgrade, Du8ina 7, 11000 Belgrade, Serbia; sabina.kovac@rgf.bg.ac.rs Department of Physics, Faculty of Science, University of Novi Sad, Trg Dositeja Obradovic¢a 3, 21000 Novi Sad, Serbia; elvira.djurdjic@df.uns.ac.rs * Correspondence: ...

  • Multihazard Exposure Assessment on the Valjevo City Road Network

    Miloš Marjanović, Biljana Abolmasov, Svetozar Milenković, Uroš Đurić, Jelka Krušić, Mileva Samardžić Petrović (2019)
    Prirodni hazardi, izloženost, klizišta, poplave, bujice, GIS, R

  • Optimizacija utovarno-transportnih sistema u funkciji planiranja površinskog kopa

    Mirjana V. Banković (2018-07-13)
    Profitabilna eksploatacija sve složenijih ležišta je težak zadatak koji zavisi odtemeljnog procesa analize, planiranja i projektovanja rudnika. Izvodljiv strateškiplan mora da zadovoljava društvena, regulatorna, tehnološka, geometrijska iekonomska ograničenja. Kako bi se postigao osnovni cilj, odnosno profitabilnost iodrživost rudarskog projekta na duži period, neophodno je unapređenjematematičkih modela i informatičke podrške procesima planiranja i optimizacijekoji će omogućiti efikasnu realizaciju ovih ciljeva...
    tehnološki model, integralni model, planiranje, optimizacija,utovarno-transportni sistem, neto sadašnja vrednost projekta
    ... generate over 50% of the total cost of exploitation. The results of the research through the case study showed that the developed methodology and integral model with software support can be efficiently applied in order to achieve maximum economic effects, especially in exploitation of low quality coal ...
    ... Morin, M., 2005, Equipment size effects on open pit mining performance. International Journal of Surface Mining, Reclamation and Environment, 19 (1), 41-56. Bozorgebrahimi, E., 2004, The evaluation of haulage truck size effects on open pit mining, PhD Thesis, University of British Columbia. Bozorgebrahimi ...
    ... from traditional optimization: grade uncertainty and risk effects in open-pit design. Mining Technology, 111 (1), 82-88. 196 Dorin, I., Diaconescu, C., Topor, D. I., 2014, The role of mining in national economies. International Journal of Academic Research in Accounting, Finance and Management Sciences ...

  • Sorpcija herbicida na neorganski i organski modifikovanom prirodnom montmorionitu iz Bogovine

    Lazar M. Kaluđerović (2018-01-17)
    fikasnost prilikom sorpcije S-metolahlora i klomazona od strane neorganskih iorganski modifikovanih montmorionita sa lokaliteta Bogovina odreĎena je metodombach adsorpcije. Uzorci montmorionita su tretirani prvo rastvorom NaCl a zatim irazličitim koncentracijama organskih kompleksa. Adsorpcione izoterme su dobijenetretiranjem uzoraka različitim koncentracijama herbicida. Detaljna mineraloškakarakterizacija uzoraka uraĎena je metodom rendgenske difrakcije. Rezultati interakcijemontmorionita sa organskim kompleksima i herbicidima dobijeni su primenomrendgenskih, optičkih, termičkih i spektroskopskih metoda.Na osnovu rezultata rendgenskih ispitivanja uzoraka, utvrĎeno je prisustvoorganskih kompleksa i herbicida u meĎuslojnom prostoru montmorionita.Montmorioniti modifikovani ...
    adsorpcija, montmorionit, heksadeciltrimetilamonijum bromid,feniltrimetilamonijum hlorid, S-metolahlor, klomazon
    ... 48: 897–910. Bujdak J., Slosiarikova H., Novákova L., Čičel B. 1991. Fixation of lithium cations in montmorillonite. Chemical Papers, 45(4): 499–507. Canero A., Cox L., Cabrera A., Cornejo J. 2015. Different effects of a by-product from olive oil extraction on S-metolachlor and bentazone soil fate ...
    ... 386–388. Mervosh T., Sims G., Stoller E., Ellsworth T. 1995. Clomazone Sorption in Soil: Incubation Time, Temperature, and Soil Moisture Effects. Journal of Agriculture and Food Chemistry, 43: 2295–2300. Milenković J., Đukanović D., Ivković M., 2005. Bentonitske gline jame "Istočno polje" RMU ...
    ... ncbi.nlm.nih.gov/pubmed/20797761 151 soil organic matter through pH effects on sorption. Environmental Science and Technology, 38: 4361–4368. Zhu L. Z., Ruan X., Chen B. L., Zhu R. 2008. Efficient removal and mechanisms of water soluble aromatic contaminants by a reduced-charge bentonite modified ...

  • Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit

    Sanja Bajić, Dragoljub Bajić, Branko Glušćević, Radmila Gaćina (2023)

  • Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling

    Branislav Petrović, Veljko Marinović, Zoran Stevanović (2023)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Long-term planning methodology for improving wood biomass utilization

    Vladimir Vukašinović, Dušan Gordić, Marija Živković, Davor Koncalović, Dubravka Živković (2019)
    The insufficiently developed forest management system is often followed by undeveloped forest resources supply chain and insufficient institutional support. These cause inefficient usage of fuel-wood as well as huge amounts of unused forest residues. In order to achieve optimal and long-term sustainable utilisation of biomass, an original methodology based on the interaction of mathematical optimization and backcasting approach has been developed. Mathematical optimization is used for both generation and consideration of techno-economic parameters of the forest biomass supply chain. ...
    Long-term planning methodology, Forest biomass, MINLP, Backcasting

  • Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides

    Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor (2019)
    Internal Dinarides, Drina-Ivanjica thrust sheet, Deformation history, K–Ar dating, Obduction, Structural analysis
    ... E., & Lahann, R. W. (1981). Smectite to illite conversion rates: effects of solution chemistry. Clays and Clay Minerals, 29(2), 129-135. Robertson, A. (2004). Development of concepts concerning the genesis and emplacement of Tethyan ophiolites in the Eastern Mediterranean and Oman regions. ...
    ... 1 Introduction Emplacement of oceanic crust on top of continental mar- gins has been an object of particular interest since the observation of the large volumes of ophiolitic complexes exposed in Eurasia (Goffć et al. 1988; Robertson 2004). The understanding: of ophiolite obduction has been ...
    ... Petrology of low metamorphosed rocks of the central part of the Drina-Ivanjica Paleozoic: Bu//. Mus. Hist. Nat. Belgrade, A, 39, 13-139. Milovanovic, D., Marchig, V., and Stevan, K., 1995, Petrology of the crossite schist from Fruška Gora Mts (Yugoslavia), relic of a subducted slab of the Tethyan ...

  • Optimizacija parametara reza rotornog bagera pri otkopavanju materijala sa povećanom čvrstoćom

    Saša D. Bošković (2016-09-09)
    Otkopavanje materijala rotornim bagerom je veoma sloţen fiziĉko-mehaniĉki proces. Pokazatelji efektivnosti tog procesa zavise od velikog broja raznovrsnih ĉinilaca od kojih se posebno mogu istaći: fiziĉko-mehaniĉke karakteristike materijala koji se otkopava, reţim rada bagera i izbor tehnoloških parametara bloka, odreska i reza, geometrije vedrica i zuba itd. Poseban problem se javlja kod otkopavanja materijala povećane ĉvrstoće, što je ĉest sluĉaj na našim površinskim kopovima. Dimenzionisanje specifiĉne sile kopanja bagera prema manjim masama izuzetno ĉvrstog materijala je neracionalno i rešenje ...
    rotorni bager, parametri reza, otpor na kopanje, dinamika bagera, kapacitet, optimizacija, specifična potrošnja energije
    ... optimization of bucket wheel excavator operation i.e. in the selection of the optimal type of cut and parameters of slices in order to reduce resistance to digging, reducing energy consumption and reducing the dynamic effects on the structure of the bucket wheel excavator. Current research of this issue ...
    ... checkups of results obtained in the concrete conditions of the working environment. Field tests, analysis of the obtained results and optimization of cutting parameters during the mining of materials with increased strength in the opencast mine Gacko has shown that the best effects of excavator ...
    ... OPTIMIZATION OF BUCKET WHEEL EXCAVATOR CUTTING PARAMETERS AT MINING OF MATERIALS WITH INCREASED STRENGTH Summary Mining of material by a bucket wheel excavator is a very complex physical physical-mechanical process. Indicators of the effectiveness of this process depends on a number of various ...