Претрага
468 items
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Stratigraphy and microfossils (radiolarians and planktonic foraminifers) of the Upper Cretaceous (upper Santonian–lower Campanian) Struganik limestone (Western Serbia)
Liubov G. Bragina, Nikita Yu. Bragin, Ludmila F. Kopayevich, Nevenka Đerić, Nataša Gerzina Spajić (2019)Liubov G. Bragina, Nikita Yu. Bragin, Ludmila F. Kopayevich, Nevenka Đerić, Nataša Gerzina Spajić. "Stratigraphy and microfossils (radiolarians and planktonic foraminifers) of the Upper Cretaceous (upper Santonian–lower Campanian) Struganik limestone (Western Serbia)" in Palaeoworld, Elsevier BV (2019). https://doi.org/10.1016/j.palwor.2019.05.001
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Development of A Business Intelligence Tool For Accident Analysis in Mines
... (Glowacki, 2008) developed at the U.S. National Institute for Occupational Safety and Health’s (NIOSH), which is the leading world organization in this area. At the beginning of June 2014, the Office of Mine Safety and Health Research (OMSHR) within NIOSH has announced the implementation of a taxonomy-based ...
... presented the use of an ontology-based tool in improvement of the analysis and reporting system with easy data access and query for users in mine safety area. We have demonstrated various possibilities that the use of such a business intelligence tool open, supported by a practical example of application ...Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Uroš Pantelić. "Development of A Business Intelligence Tool For Accident Analysis in Mines" in Proceedings of the 5th International Symposium Mining And Environmental Protection, June 10-13, 2015, Vrdnik, Serbia, Belgrade : Faculty of Mining and Geology (2015)
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Split-Desktop software for the analysis of fragment size distribution of blasted rock mass
Milanka Negovanović, Lazar Kričak, Stefan Milanović, Jovan Marković, Nikola Simić, Snežana Ignjatović (2023)Drobljenje stena je najvažniji pokazatelj u proceni efekata miniranja pri proizvodnom miniranju u površinskoj eksploataciji. Stepen drobljenja stena ima veliki uticaj na efikasnost daljih operacija utovara, transporta, drobljenja i mlevenja. Optimalno drobljenje stena pri proizvodnom miniranju utiče na smanjenje ukupnih troškova proizvodnje. Stoga je pouzdana procena veličine drobljenja odminirane stenske mase veoma važno pitanje, ne samo u operacijama miniranja, već i u rudarskoj proizvodnji. Za predviđanje distribucije veličine komada odminirane stenske mase postoje različiti empirijski modeli. KUZ-RAM model omogućava ...Milanka Negovanović, Lazar Kričak, Stefan Milanović, Jovan Marković, Nikola Simić, Snežana Ignjatović. "Split-Desktop software for the analysis of fragment size distribution of blasted rock mass" in 9th International Conference Mining and environmental protection, Sokobanja, Serbia, 24 – 27. May 2023, Belgrade : University of Belgrade, Faculty of Mining and Geology (2023)
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Atmospheric exposure vs burying: influences on damage intensity of built-in kersantite in the monument of the Small Staircase (Belgrade, Serbia)
Proučavan je efekat „zatrpanog kamena“ na intenzitet procesa degradacije prisutnih na kersantitu koji je ugrađen u spomenik Malo stepenište. Istraživanja su vršena na uzorcima stene iz kamenoloma i na oštećenim kamenim blokovima ugrađenim u spomenik. Dok su neki delovi stepeništa bili pod zemljom 90 godina, većina kamenih elemenata je bila izložena različitim uslovima sredine i antropogenim uticajima. Urađeno je detaljno mapiranje trenutnog stanja spomenika kako bi se istražio uticaj “zatrpavanja” i kompleksne geometrije spomenika na tip propadanja i variranje ...Nevenka Novaković, Predrag Dabić, Vesna Matović. "Atmospheric exposure vs burying: influences on damage intensity of built-in kersantite in the monument of the Small Staircase (Belgrade, Serbia)" in Environmental Earth Sciences, Springer Science and Business Media LLC (2023). https://doi.org/10.1007/s12665-023-10794-6
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Rezultati ispitivanja parametara čvrstoće i dinamičkih svojstava mermera i mogućnost njihove korelacije
Ispitivanja stena kao radne sredine, odnosno materijala sa kojim se gradi, na kome se gradi i u kome se gradi, svojom složenošću zahteva njeno svestrano izučavanje po velikom broju parametara. Zadatak Mehanike stena je da što bolje upozna ponašanje stenske mase i njenu otpornost na dejstvo pritiska, zatezanja i smicanja, kao i dinamičkih svojstava. Poznavanje navedenih parametara i njihova korelacija omogućavaju pouzdaniji izbor parametara za projektovanje danas sve zahtevnijih uslova kako podzemne, tako i površinske eksploatacije. U ovom radu ...mermer, jednoosna čvrstoća na pritisak, čvrstoća na istezanje, brzina longitudinalnih elastičnih talasa, korelacijaJelena Majstorović-Necković, Vladimir Čebašek, Veljko Rupar. "Rezultati ispitivanja parametara čvrstoće i dinamičkih svojstava mermera i mogućnost njihove korelacije" in 11. Međunarodna konferencija “Ugalj i kritični materijali" CCM 2023, Zlatibor, 11-14. oktobar 2023., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
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Hronološki pregled razvoja površinske eksploatacije lignita u Srbiji
U ovom preglednom radu dat je istorijski pregled razvoja površinske eksploatacije lignita na teritoriji Srbije, uz kratak osvrt na geološki nastanak i kvalitet i rezerve uglja, kao i mogućnosti korišćenja za dalju upotrebu. Kolubarski, Kostolački i Kovinski ugljeni baseni lignita u Srbiji, ne računajući Kosovsko-Metohijski i Drenički u sastavu AP Kosovo i Metohija po Rezoluciji 1244 UN, su ležišta najrasprostranjenijeg uglja - lignita u Srbiji koji se eksploatiše od druge polovine 20. veka na velikom broju površinskih kopova ...Bojan Dimitrijević, Radmila Gaćina, Bogoljub Vučković. "Hronološki pregled razvoja površinske eksploatacije lignita u Srbiji" in XI Međunarodna konferencija ugalj i kritični mineral CCM 2023, Zlatibor, 11-14. oktobar 2023., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
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Centar za hidrogeologiju karsta - 15 godina nauke i struke
... Ali, MSc. (2008): Geology and hydrogeology of the Sharazur - Piramagrun basin in the area of Suleimania · igor Jemcov, MSc. (2009): Balance of karst groundwater and optimization of solutions for their catchment using examples from Serbia · Saša Milanović, MSc. (2010): Creation of a physical model ...
... Vakanjac, V., Stevanovic, Z., Maran Stevanović, A., Vakanjac, B., Čokorilo Ilić, M. (2014): An example of karst catchment delineation for prioritizing the protection of an intact natural area, Monograph: Hydrogeological and TFvironmental Investigations in Karst Systems, (ed. B. Andreo, F Carrasco, JJ ...
... Vakanjac, V., Stevanović, Z., Maran Stevanović, A., Vakanjac, B., Čokorilo Ilić, M. (2015): An example of karst catchment delineation for prioritizmg the protection of an intact natural area, Environmental Farth Science (G. Derhaefer; ).W. LaMoreaux; O. Kolditz Fd.), Vol. 74, Issue 12, page 7643–7653 ...urednici Saša Milanović, Ljiljana Vasić, Zoran Stevanović, Branislav Petrović. Centar za hidrogeologiju karsta - 15 godina nauke i struke, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, Centar za hidrogeologiju karsta, 2023
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Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions
Martin Fabián, Bratislav Antić, Vladimír Girman, Milica Vučinić-Vasić, Aleksandar Kremenović, Shigeru Suzuki, Horst Hahn, Vladimír Šepelák (2015)A series of nanostructuredfluorite-type Ce1–xYxO2–δ (0rxr0.35) solid solutions, prepared via highenergy milling of the CeO2/Y2O3mixtures, are investigated by XRD, HR-TEM, EDS and Raman spectroscopy. For thefirst time, complementary information on both the long-range and short-range structural features of mechanosynthesized Ce1–xYxO2–δ, obtained by Rietveld analysis of XRD data and Raman spectroscopy, is provided. The lattice parameters of the as-prepared solid solutions decrease with increasing yttrium content. Rietveld refinements of the XRD data reveal increase in microstrains in the host ceria ...Martin Fabián, Bratislav Antić, Vladimír Girman, Milica Vučinić-Vasić, Aleksandar Kremenović, Shigeru Suzuki, Horst Hahn, Vladimír Šepelák. "Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions" in Journal of Solid State Chemistry, Elsevier BV (2015). https://doi.org/10.1016/j.jssc.2015.06.027
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WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina
Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)... which inherit abstract ESRI classes Feature and Object. The central place is the abandoned_facility_registry class, which maps the data on a degraded area, and defines the titleholder by the relation to the class company. Like other attribute classes, it inherits the abstract class generic_attributes ...
... and video records collected during field visits. The spatial polygonal class abandoned_facility describes the geometric parameters of the degraded area: contour, surface, average bench heights, the overall depth of the pit, volume, as well as general data collected during the field visit related to ...Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis. "WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina" in Proceedings of the 5th International Symposium Mining And Environmental Protection,June 10-13,2015, Vrdnik, Serbia, Belgrade : Faculty of Mining and Geology (2015)
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An oilfield in Libya: A new model to enhance waste water disposal
Dušan Danilović, Vesna Karović Maričić, Nori Elhaddad, Branko Leković. "An oilfield in Libya: A new model to enhance waste water disposal" in Energy & Environment (2016)
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Improvement of geodatabase queries within GeolISS
Ranka Stanković (2008)... and disadvantages to using both the raster and the vector data model to represent reality. Raster data sets record a value for each point in the area of interest, which may require more storage space than the representation in vector format that stores only the Ranka Stanković 66 necessary ...
... tectonic structures, faults, fold access, dyke or vein. − Two-dimensional polygons are used for geographical features that cover a particular area of Earth's surface. Such features may include lakes, park boundaries, buildings, city boundaries, or land uses. Each of these geometries is linked ...Ranka Stanković. "Improvement of geodatabase queries within GeolISS" in Review of the National Center for Digitization, Beograd : Faculty of Mathematics, Belgrade (2008)
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Еоценска фауна југозападног дела Сирт басена (Либија)
Љупко Рундић, Мери Ганић (2020)Љупко Рундић, Мери Ганић. "Еоценска фауна југозападног дела Сирт басена (Либија)" in Записници Српског геолошког друштва, Српско геолошко друштво (2020)
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Determination of Mechanical Properties of Altered Dacite by Laboratory Methods
This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...... deposit, “Ćeramide,” belongs to the Rudnik–Ljig volcanic area, within which three larger masses of effusive rocks have been isolated. However, Sarmatian quartzite- dacite effusive with accompanying pyroclastics predominates within the volcanic area [11]. Dacite deposit is of simple geological structure ...
... recently investigated UCS on composite samples. This study includes composites of sandstone and shale aimed at simulating tropical conditions that rule the area. Composite samples with the 10%, 20%, and 30% participation of weaker material of the overall sample height were prepared for the study, while gypsum ...
... UCS is calculated according to the following equation: σci UCS = P/A (1) where: P—maximum force at the moment of failure, A—specimen’s cross-section area. Triaxial tests were carried out by the current ISRM recommendations for this type of test [19]. A triaxial test was performed for five different values ...Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović. "Determination of Mechanical Properties of Altered Dacite by Laboratory Methods" in Minerals, MDPI AG (2021). https://doi.org/10.3390/min11080813
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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)... Research [10] developed at the U.S. National Institute for Occupational Safety and Health’s (NIOSH), which is the leading world organization in this area. At the beginning of June 2014, the Office of Mine Safety and Health Research (OMSHR) within NIOSH announced the implementation of a taxonomy-based ...
... the use of an ontology-based tool in improvement 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 ...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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Sitni, ali bitni: uloga sitnih sisara, herpetofaune i mekušaca u rekonstrukciji pleistocenskih paleosredina
Fosilni ostaci životinja i biljaka imaju važnu ulogu u rekonstrukciji pleistocenskih paleosredina. U ovom radu opisan je značaj tri grupe životinja: sitnih sisara, herpetofaune I mekušaca. Mada je za rekonstrukciju važan sastav čitave asocijacije, nalasci pojedinih vrsta mogu biti dovoljno indikativni da otkriju tip staništa ili klimatske uslove. Posebnu teškoću pri rekonstrukciji paleosredina u Srbiji predstavlja činjenica da klimatske promene na Balkanskom poluostrvu nisu bile tako oštre kao u srednjoj i zapadnoj Evropi, pa ne postoji drastična razlika u ...... especially palaeoclimatic conditions. Characteristic species or index-fossils can provide valuable information about the climatic characteristics of an area, since certain species are specially adapted to cold or warm climate. Thus, for example, it can be concluded that during the Pleistocene, cold and ...
... more groups of small vertebrates or molluscs (fossil and modern), palaeontologists try to interpret the palaeoecological conditions of the researched area using different methods. Each of the described methods has its advantages and disadvantages. Therefore, it is useful to combine different types ...Katarina Bogićević, Draženko Nenadić, Dragana Đurić, Mihajlo Jovanović, Aleksandra Savković. "Sitni, ali bitni: uloga sitnih sisara, herpetofaune i mekušaca u rekonstrukciji pleistocenskih paleosredina" in Zbornik sažetaka III Kongresa geologa Bosne i Hercegovine, Neum, 21.-23.09.2023., Ilidža : Udruženje geologa Bosne i Hercegovine (2023)
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Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia
Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević (2020)Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević. "Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia" in Marine and Petroleum Geology, Elsevier BV (2020). https://doi.org/10.1016/j.marpetgeo.2020.104252
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Surface functional groups and degree of carbonization of selected chars from different processes and feedstock
Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann (2022)The knowledge ofthe structural and chemical properties of biochars is decisive for their application as technical products. For this reason, methods for the characterization of biochars that are generally applicable and allow quality control are highly desired. Several methods that have shown potential in other studies were used to investigate two activated carbons and seven biochars from different processes and feedstock. The chars were chosen to cover a wide range of chemical composition and structural properties as a hardness ...Biougalj, različiti procesi dobijanja, različite sirovine, površinski aktivne grupe, x-ray, FT-IR,XPS... in a low vacuum atmosphere using a Fine Coat Ion Sputter JFC-1100 unit (Jeol, Akishima, Tokio, Japan). Nitrogen adsorption. 'The specific surface area of the chars was determined with nitrogen adsorption by the Brunauer-Emmett-Teller method (BET) with an AUTOSORB-1 (Quanta- chrome Instruments, ...
... elements or functional groups in atomic % (at%) were determined with an error of > 10% as the fractions of signals normalized to the total signal area using empirical relative sensitivity factors. A charge correction was performed by setting the signal of the main C-C component of the C1s signal ...
... constant for calculating the conductivity had an error of about 10%. Results and discussion Scanning electron microscopy (SEM) and specific surface area SEM and BET were used to determine structural properties of the chars. Selected SEM images representing the main structural features found for different ...Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann. "Surface functional groups and degree of carbonization of selected chars from different processes and feedstock" in PLOS ONE (2022). https://doi.org/10.1371/journal.pone.0277365
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Хазард од клизишта у Србији у 21. веку
Biljana Abolmasov (2019)... (Receiver Operating Characteristic), ›��� ������ � �������›������� �� ������, ›�›� ›������������, �� � ���� ������ �� ��������� �������� � ›���� (���. area under curve � AUC) ��›� � ›�����������, �� � ���� ›���›��� � ����›� ›���� [18]. 72 > > - ; > > > > > , > > , > y > > > > > > > > > > 5 10 15 , > ...
... > (Support Vector Machine SVM) [21]. > , > ). > > (ConfuGonohimgéncyx table [18], > > > > , > Receiver Operating Characteristic), > r >> > , > ( - area under clrve>» AUG 1 > > > [18]. ROC 73������ �� ›������� � ������ � 21. ��›� � � � � � � 2 . � � � � � � � � � � � � � � � � � � ...Biljana Abolmasov. "Хазард од клизишта у Србији у 21. веку" in Геохазард у Србији у 21. веку – знање је најбољи бедем против стихије, Српска академија наука и уметности (2019)
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Production of electricity from coal-fired power plants and accompanying CO2 emissions: comparison of EU-27 and US
Even in the third decade of the 21st century, large power plants are still responsible for more than half of the electricity production in Europe and US. They predominantly use fossil fuels in their work, which results in the emission of pollutants into the air, soil and water. In addition to the production of electric energy, fossil fuels, including coal, are used for industrial purposes. Although the use of coal, especially in the countries of the European Union, is ...... but is one of the largest emitters of CO> in Europe Table 3. CO;» emissions from coal-fired power plants in 2021 [11] Million | Ratio to the area of IRatio to th bel Ratio to electricity | Ratioto electricity | Ratioto electricity Ratioto GDP tons the territory i:hl:bi(l)anle% F\uan) /23 production ...
... Coal Database - Europe Beyond Coal, 2023. [5] ***. Power plants in the United States by source, available · at: https://openinframap.org/stats/area/United%20States [6] U.S. Energy Information Administration, Monfhly Energy Review, Table 1.3 and Table 6.2, May 2022, preliminary data for 2021 ...Uroš Djorgovski, Aleksandar Madžarević, Predrag Jovančić. "Production of electricity from coal-fired power plants and accompanying CO2 emissions: comparison of EU-27 and US" in International Conference on Global Energy and Climate Change - ICGRECC-23, New York, 2023, Research Galery- Science Leagues (2023)
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Groundwater gravitational circulation of Karst Veliko Vrelo and Malo Vrelo springs by isotope and the noble gas method: case study of the Beljanica Massif
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental ChemistryLjiljana Vasić, Laszlo Palcsu, Huang Fen. "Groundwater gravitational circulation of Karst Veliko Vrelo and Malo Vrelo springs by isotope and the noble gas method: case study of the Beljanica Massif" in Environmental Earth Sciences, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s12665-019-8294-0