Претрага
683 items
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Application of factor analysis in identification of dominant hydrogeochemical processes of some nitrogenous groundwater of Serbia
Paleontology, Stratigraphy, Economic Geology, Geochemistry and Petrology, Geology, Geophysics, Geotechnical Engineering and Engineering GeologyJana Stojković, Petar Papić, Marina Ćuk, Maja Todorović. "Application of factor analysis in identification of dominant hydrogeochemical processes of some nitrogenous groundwater of Serbia" in Annales geologiques de la Peninsule balkanique, National Library of Serbia (2014). https://doi.org/10.2298/GABP1374057S
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Preliminary analysis of Krupaja Spring discharge (Еastern Serbia)
Jovana Nikolić, Vesna Ristić Vakanjac, Saša Milanović, Zoran Stevanović, Ljiljana Vasić. "Preliminary analysis of Krupaja Spring discharge (Еastern Serbia)" in National Conference with international participation “Geosciences 2020”, Review of the Bulgarian Geological Society, vol. 81, part 3, Sofia : Bulgarian geological society (2020)
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Results of comprehensive monitoring activities on Umka landslide, Belgrade, Serbia
Biljana Abolmasov, Uroš Đurić (2021)... Global Navigation Satellite System (GNSS) monitoring network data, PSInSAR data analysis from Sentinel1 radar satellite images, conventional geodetic monitoring network data and UAV imaging, processing and data analysis in the last six years. Study area The Umka landslide is formed on the right ...
... automated GNSS monitorong network, geodetic benchmark survey monitoring, UAV imaging with photogrammetric processing and analysis, and PSInSAR data processing and analysis. Common to all implemented monitoring techniques is to measure displacement of the observed points (dx, dy, dz) on the landslide ...
... t rates were found in previously published results from GNSS monitoring activities realized from 2010-2014 (Abolmasov et al. 2015). PSInSAR data analysis showed very good correlation between nearest PS points and GNSS point for the same period of monitoring (2016-2018). Results from geodetic survey ...Biljana Abolmasov, Uroš Đurić . "Results of comprehensive monitoring activities on Umka landslide, Belgrade, Serbia" in 3rd European Regional Conference of IAEG/ Athens/ Greece/ 6-10 October 2021, IAEG National Group Greece (2021)
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Heavy metals in lignite and soil of Kostolac-Kovin coal basin, eastern Serbia - comparative analysis with selected cities in Serbia, region, Europe and world
Bogoljub Vučković, Bojan Dimitrijević (2023)The Kostolac-Kovin coal basin with an area of 320 km2, with 5 separate layers of coal and with a total of about 5.7 Bt of geological resources and reserves represents an exceptional potential for coal production in Serbia. The coal resources listed in this way are not fully exploitable, but they represent potential for consideration. In this paper, we deal with the geochemical characteristics of coal seams and perform a comparative analysis of coal affectation on the environment. With ...... coal seams and perform a comparative analysis of coal af}ectation on the environment. P/ith 155 analyzes of HM from coal, 45 from ash, 165 from gravel and 30 from soil, we perform analysis of horizontal and vertical distribution of HM and comparative analysis. B/hat interests us as authors and ...
... Измењено: 2023-10-22 19:38:49 Heavy metals in lignite and soil of Kostolac-Kovin coal basin, eastern Serbia - comparative analysis with selected cities in Serbia, region, Europe and world Bogoljub Vučković, Bojan Dimitrijević Дигитални репозиторијум Рударско-геолошког факултета ...
... факултета Универзитета у Београду [ДР РГФ] Heavy metals in lignite and soil of Kostolac-Kovin coal basin, eastern Serbia - comparative analysis with selected cities in Serbia, region, Europe and world | Bogoljub Vučković, Bojan Dimitrijević | 9th International Conference Mining and Environmental Protection ...Bogoljub Vučković, Bojan Dimitrijević. "Heavy metals in lignite and soil of Kostolac-Kovin coal basin, eastern Serbia - comparative analysis with selected cities in Serbia, region, Europe and world" in 9th International Conference Mining and Environmental Protection, 24–27. May 2023, Sokobanja, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet (2023)
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ОЦЕНКА ДОСТОВЕРНОСТИ ДАННЫХ ПО ЦИКЛИЧЕСКИМ УГЛЕВОДОРОДАМ - БИОМАРКЕРАМ, НАФТАЛИНАМ, ФЕНАНТРЕНАМ И АЛКИЛДИБЕНЗОТИОФЕНАМ, ПОЛУЧЕННЫХ ПРИ АНАЛИЗЕ МАСЕЛ МЕТОДОМ ХРОМАТОМАСС&СПЕКТРОМЕТРИИ.- НЕФТЕХИМИЯ Validation of data on polycyclic biomarkers, naphthalenes, phenanthrenes, and alkyldibenzothiophenes obtained by gas chromatographic-mass spectrometric analysis of hydrocarbon concentrates
Stojanović Ksenija, Kostić Aleksandar, Šajnović Aleksandra, Pevneva G.S., Golovko A.K., Jovančićević Branimir (2011)Stojanović Ksenija, Kostić Aleksandar, Šajnović Aleksandra, Pevneva G.S., Golovko A.K., Jovančićević Branimir. "ОЦЕНКА ДОСТОВЕРНОСТИ ДАННЫХ ПО ЦИКЛИЧЕСКИМ УГЛЕВОДОРОДАМ - БИОМАРКЕРАМ, НАФТАЛИНАМ, ФЕНАНТРЕНАМ И АЛКИЛДИБЕНЗОТИОФЕНАМ, ПОЛУЧЕННЫХ ПРИ АНАЛИЗЕ МАСЕЛ МЕТОДОМ ХРОМАТОМАСС&СПЕКТРОМЕТРИИ.- НЕФТЕХИМИЯ Validation of data on polycyclic biomarkers, naphthalenes, phenanthrenes, and alkyldibenzothiophenes obtained by gas chromatographic-mass spectrometric analysis of hydrocarbon concentrates" in Petroleum Chemistry (Neftekhimiya) Enginee no. 51, :Springer (2011): 243-251
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Biostratigraphy and facial analysis of the Miocene succession from the borehole KC-4 (Koceljevo, western Serbia)
Jelena Stefanović, Natalija Batočanin, Violeta Gajić, Nebojša Vasić, Ljupko Rundić. "Biostratigraphy and facial analysis of the Miocene succession from the borehole KC-4 (Koceljevo, western Serbia)" in 8th workshop on NCSEE, 27th – 31st May, Chęciny, Poland, Warsaw : University of Warsaw, Faculty of Geology, Polish Academy of Sciences, and Museum of the Earth in Warsaw (2019)
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Multicriteria Analysis and Optimization of Groundwater Control Systems with Variable Values of Criterion over Predefined Time Points
Milica Stepanović, Dragoljub Bajić, Dušan Polomčić. "Multicriteria Analysis and Optimization of Groundwater Control Systems with Variable Values of Criterion over Predefined Time Points" in Comptes rendus de l'Académie Bulgare des Sciences, "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences (2021). https://doi.org/10.7546/CRABS.2021.08.09
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Multivariate Statistical Analysis of Hydrochemical and Microbiological Natural Tracers as a Tool for Understanding Karst Hydrodynamics (The Unica Springs, SW Slovenia)
Marina Ćuk Đurović, Metka Petrič, Igor Jemcov, Janez Mulec, Zdenka Mazej Grudnik, Cyril Mayaud, Matej Blatnik, Blaž Kogovšek, Nataša Ravbar (2022)Marina Ćuk Đurović, Metka Petrič, Igor Jemcov, Janez Mulec, Zdenka Mazej Grudnik, Cyril Mayaud, Matej Blatnik, Blaž Kogovšek, Nataša Ravbar. "Multivariate Statistical Analysis of Hydrochemical and Microbiological Natural Tracers as a Tool for Understanding Karst Hydrodynamics (The Unica Springs, SW Slovenia)" in Water Resources Research, American Geophysical Union (AGU) (2022). https://doi.org/10.1029/2021WR031831
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Formative evaluation of e-learning projects with the logical framework approach
... model is to make clearer the system and allows for more explicit analysis of the project through analysis of the components of the system, which is the promise of a ‘‘white box’’ approach. Furthermore, this type of analysis of the inner components and the logic of the system can enable needed ...
... benefits it addresses. In order to represent and analyze the mechanisms of the system, and allow an explicit, even prospective analysis, through the analysis of the individual components of the project [22][23], it is necessary to capture the ‘‘transformation processes that turn interventions ...
... innovative project, the technology platform is implemented on an experimental basis, and is not relevant the analysis of training needs and the courses to be activated, rather the analysis of the experience of learning of users (students and workers). 5. CONCLUSIONS Kahan and Goodstadt ...Roberto Linzalone, Giovani Schiuma, Ivan Obradović, Ranka Stanković. "Formative evaluation of e-learning projects with the logical framework approach" in The Sixth International Conference on e-Learning (eLearning-2015), September 2015, Belgrade, Serbia, Belgrade Metropolitan Univesity (2015)
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Analysis and Calculation of MMRS and Primary Gas Distribution Network in Urban Environment – Case Study Kučevo
Aleksandar Madžarević, Pavle Janković (2022)Oblast primene prirodnog gasa je veoma široka. Kao energent može se koristiti za proizvodnju energije u elektranama, toplanama i postrojenjima za kombinovanu proizvodnju energije ili za zadovoljavanje različitih toplotnih potreba u industriji i širokoj potrošnji. Gas se može upotrebiti i kao sirovina u hemijskoj i petrohemijskoj industriji, a tokom poslednjih decenija nalazi primenu i u saobraćaju kao pogonsko gorivo u SUS motorima. Sa ekološkog stanovišta, prirodni gas predstavlja najprihvatljiviji izvor energije u poređenju sa drugim fosilnim gorivima. Pri sagorevanju ...Aleksandar Madžarević, Pavle Janković. "Analysis and Calculation of MMRS and Primary Gas Distribution Network in Urban Environment – Case Study Kučevo" in Međunarodni Kongres o procesnoj industriji - PROCESING '22, Beograd : SMEITS, Društvo za procesnu tehniku (2022)
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Избор рекултивационог решења површинског копа Кленовник вишеатрибутном анализом: моделски приступ код избора; А selection of the land reclamation resolution of the open pit mine Klenovnik by a multi-attribute analysis: modeling approach in selection,
Вујић Слободан, Димитријевић Бојан, Николић Јовица, Милошевић Драган, Макар Ненад, Марјанац Симеон (2013)Вујић Слободан, Димитријевић Бојан, Николић Јовица, Милошевић Драган, Макар Ненад, Марјанац Симеон. "Избор рекултивационог решења површинског копа Кленовник вишеатрибутном анализом: моделски приступ код избора; А selection of the land reclamation resolution of the open pit mine Klenovnik by a multi-attribute analysis: modeling approach in selection," in Зборник радова XL Симпозијум о операционим истраживањима СYМОПИС 2013 no. XL, Златибор, Србија :Универзитет у Београду, Факултет организационих наука, Београд. (2013): 745-747
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Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling
Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeBranislav Petrović, Veljko Marinović, Zoran Stevanović. "Characterization of the eastern Suva Planina Mt. karst aquifer (SE Serbia) by time series analysis and stochastic modelling" in Environmental Earth Sciences, Springer Science and Business Media LLC (2023). https://doi.org/10.1007/s12665-023-10911-5
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Примена дискретног ауторегресивно – кросрегресивног модела покретног просека за прогнозу дневних вредности издашности врела Мокра и Дивљана
Бранислав Петровић, Вељко Мариновић (2021)Аутокорелациона и кроскорелациона анализа временских серија падавина и истицања подземних вода карстних врела Мокра и Дивљана (Сува планина, ЈИ Србија) извршена је ради формирања стохастичког ауторегресивно-кросрегресивног модела (ARCR) и прогнозе дневних вредности издашности. Будући да је тешко предвидети просторну дистрибуцију подземних вода у оквиру карстног хидрогеолошког система услед постојања хетерогености и анизотропности карстне издани (тј. кречњачких стена у овом случају), апликативност детерминистичких модела је минимизирана, па је примена стохастичког модела у овом случају учинковитија. Овим моделом могуће је дати ...карстно врело, стохастички модел, анализа временских серија, ауторегресивно-кросрегресивни модел (ARCR)Бранислав Петровић, Вељко Мариновић. "Примена дискретног ауторегресивно – кросрегресивног модела покретног просека за прогнозу дневних вредности издашности врела Мокра и Дивљана" in Записници Српског геолошког друштва, Српско геолошко друштво (2021)
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Analysis of the Influence of Burden Deviation from the Designed One on the Intensity of the Blast Vibration
Stefan Milanović, Lazar Kričak, Milanka Negovanović, Nikola Simić, Jovan Marković, Nikola Đokić (2023)This paper presents an analysis of the influence of burden deviation from the designed one on the intensity of blasting vibrations through the use of laboratory and field examinations. By definition, the burden represents the shortest distance from the axis of an explosive column charge to the free surface. It should be measured along the entire hole length, although, in practice, it is often measured only on the bench surface as the shortest distance from the axis of the ...Stefan Milanović, Lazar Kričak, Milanka Negovanović, Nikola Simić, Jovan Marković, Nikola Đokić. "Analysis of the Influence of Burden Deviation from the Designed One on the Intensity of the Blast Vibration" in Applied Sciences, MDPI AG (2023). https://doi.org/10.3390/app132312837
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Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal
Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)... effect, the following methods were used: thermogravimetric analysis (TGA), gas chromatography–mass spectrometry (GC–MS), specific carbon isotope analysis of individual hydrocarbons (δ13C), Rock-Eval pyrolysis, and elemental analysis. Detailed analysis of pyrolysis products and understanding the interactions ...
... and pyrolysis products were characterized by thermogravimetric analysis (TGA), gas chromatography–mass spectrometry (GC–MS), specific carbon isotope analysis of individual hydrocarbons (δ13C), Rock-Eval pyrolysis, and elemental analysis. The positive synergetic effect during co-pyrolysis of lignite/HDPE ...
... and pyrolysis products were characterized by thermogravimetric analysis (TGA), gas chromatography—mass spectrometry (GC-MS), specific carbon isotope analysis of individual hydrocarbons (5'°C), Rock-Eval pyrolysis, and elemental analysis. The positive synergetic effect during co-pyrolysis of lignite/ ...Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović. "Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal" in Polymers, MDPI AG (2021). https://doi.org/10.3390/polym13050759
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The analysis of the geothermal energy capacity for power generation in Serbia
Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk (2013)... 04:08:19 The analysis of the geothermal energy capacity for power generation in Serbia Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] The analysis of the geothermal ...
... � � � � 731 452 27315 [ . log )] . (3) Stojkovi}, J. S., et al.: The Analysis of the Geothermal Energy Capacity for ... 970 THERMAL SCIENCE: Year 2013, Vol. 17, No. 4, pp. 969-976 Stojkovic, J. S., et a/.: The Analysis of the Geothermal Energy Capacity for ... 970 THERMAL SCIENCE: Year 2013, Vol ...
... faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs THE ANALYSIS OF THE GEOTHERMAL ENERGY CAPACITY FOR POWER GENERATION IN SERBIA by Jana S. STOJKOVI] a*, Goran H. MARINKOVI] b, Petar J. PAPI] a, Mihailo G. M ...Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk. "The analysis of the geothermal energy capacity for power generation in Serbia" in Thermal Science, National Library of Serbia (2013). https://doi.org/10.2298/TSCI120215033S
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A business intelligence approach to mine safety management
Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Dejan Stevanović, Marija Radojičić (2016)... Figure 4 depicts two ways of presenting data on the number of injuries categorized by body part and body side. Due to the hierarchical structure of the RudOnto dictionary the analysis can be performed on several levels of detail. Thus we can ask for injuries of the arm, head, leg, or hull (Figure 4 right) ...
... In order to achieve this, it does not suffice simply to react to a problem when it occurs, but an analysis of weak points is needed, leading to a reduction of risk. A prerequisite for such an analysis is the creation of a comprehensive database with a history of injuries and conditions that led ...
... of the analysis and reporting system with easy data access and query for users in the mine safety area. We have demonstrated various possibilities that the use of such a business intelligence tool opens, supported by a practical example of application of the tool for accident analysis in mines ...Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Dejan Stevanović, Marija Radojičić . "A business intelligence approach to mine safety management" in 13th International Symposium Continuous Surface Mining, Beograd : Yugoslav Opencast Mining Committee (2016)
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Хидрогеохемијске карактеристике и квалитет вода слива Требишњице, Република Српска, Босна и Херцеговина
Dragoslav R. Banjak (2016-08-25)Упркос неповољном временском и просторном распореду, воде су најзначајнијиприродни ресурс Источне Херцеговине. Ова чињеница довела је до реализацијепројекта „Вишенамјенског хидросистема Требишњица“, којим је, премаМилановићу (2006), до сада обухваћено: седам хидроелектрана, шестакумулација, шест брана, шест тунела укупне дужине 59,7 km, неколикоприступних тунела, 62,5 km бетонског канала кроз Попово поље, канал крозДабарско (6750 m) и Фатничко поље (2770 m) и систем тунел-канал или цјевоводпрема Дубравама.У почетку са доминантним енергетским предзнаком, концепција јетрансформисана у интегрално рјешење вишенамјенског коришћења и заштитевода и животне ...хидрогеохемијски процеси, мултиваријантна статистичкаанализа, инверзно геохемијско моделовање, квалитет воде, употребиљивост водеза наводњавање, слив Требишњице... research statistical connections between dissolved minerals in water and parameters of natural environment, Q-mode and R- mode of Hierarchical cluster analysis, Factor analysis has been used on data of 929 samples. Except the statistical calculations made by software package SPSS Statistics Version ...
... on certain samples to confirm geochemical reactions which control composition of water (software package PHREEQC -3, USGS). By using Hierarchical cluster analysis, the samples of water are clustered into different populations (hydrogeochemical groups-clusters) based on mutual similarity. In the river ...
... mutual difference in the content of dissolved materials and antropogenic influences as well. Except in the Trebišnjica river catchment, Hierarchical cluster analysis has been used on samples of water in the subcatchment of the river Mušnica and Sušica. By dividing Dendogram two groups and five subgroups ...Dragoslav R. Banjak. "Хидрогеохемијске карактеристике и квалитет вода слива Требишњице, Република Српска, Босна и Херцеговина" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-08-25)
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Correlation of uniaxial compressive strength with the dynamic elastic modulus, p –wave velocity and s –wave velocity of different rock types
Knowing mechanical properties of rocks incorporated with ultrasonic waves velocities investigations provide a secure basis for mine modelling. Uniaxial compressive strength, dynamic elastic modulus and ultrasonic waves velocities are just some of the rock properties that indicate on presence of discontinuities, stratification and fissures of rocks. Determining the relationship of these rock properties testing the rock samples that are corresponding to different rock types extracted from different mineral deposits represents the core of this study. In this paper, we ...Jelena Majstorović, Miloš Gligorić, Suzana Lutovac, Milanka Negovanović, Luka Crnogorac. "Correlation of uniaxial compressive strength with the dynamic elastic modulus, p –wave velocity and s –wave velocity of different rock types" in Underground mining engineering, Рударско - геолошки факултет - Београд (2019)
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A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice
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 ...... for the analysis of air flow and pressure distribution in the ventilation network, (ii) a block for the analysis of climate conditions in mine workings, (iii) a block for temperature and heat depression analysis in fire incidence condi- tions, and (iv) a block for gas distribution analysis in the ...
... system of frames offers a suitable formalism for the proposed decomposition of the ventilation state evaluation prob- lem, since they both posses a hierarchical structure. The outlined features of the knowledge base alleviate both the coordination of knowledge within the knowledge base and the communication ...
... the system’s object browser (Fig. 9). The relationships among objects in the model are represented by links that connect the objects within a hierarchical structure. These properties of KAPPA-PC enabled an easy mapping of the modified OOA model representing the strategy for the evaluation of the overall ...Nikola Lilić, Ivan Obradović, Ranka Stanković. "A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice" in Mineral Resources Engineering 11 no. 4, Imperial College Press (2002): 361-382. https://doi.org/10.1142/S0950609802001014