Претрага
2349 items
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GIS Application Improvement with Multilingual Lexical and Terminological Resources
... integration of lexical and terminological resources, most of them developed within the Human Language Technology (HLT) Group at the University of Belgrade, and the Geological information system of Serbia (GeolISS), developed at the Faculty of Mining and Geology and funded by the Ministry ...
... examples for both multilingual map annotation and query expansion. Multilingual labelling and annotation of maps for their graphic display and printing have been tested with Serbian, which describes regional information in the local language, and English, used for sharing geographic information ...
... of Belgrade, Faculty of Mining and Geology, Faculty of Mining and Geology E-mail: {ranka, ivano, olja}@rgf.bg.ac.rs Abstract This paper introduces the results of integration of lexical and terminological resources, most of them developed within the Human Language Technology (HLT) Group at the ...Ranka Stanković, Ivan Obradović, Olivera Kitanović. "GIS Application Improvement with Multilingual Lexical and Terminological Resources" in Proceedings of the 5th International Conference on Language Resources and Evaluation, LREC 2010, Valetta, Malta, May 2010, Valetta, Malta : European Language Resources Association (2010)
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Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software
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, ...Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić. "Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software" in Podzemni radovi, Beograd : Rudarsko-geološki fakultet (2024)
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Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area
Jovan Kovačević, Maja Todorović, Marina Ćuk, Petar Papić . "Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area" in Carpathian Journal of Earth and Environmental Sciences (2016)
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3D modeling and monitoring of karst system as a base for its evaluation and utilization: a case study from eastern Serbia
Earth-Surface Processes, Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeSaša Milanović, Zoran Stevanović, Ljiljana Vasić, Vesna Ristić-Vakanjac. "3D modeling and monitoring of karst system as a base for its evaluation and utilization: a case study from eastern Serbia" in Environmental Earth Sciences, Springer Science and Business Media LLC (2013). https://doi.org/10.1007/s12665-013-2591-9
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Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs
John Nyame (2024)The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...... captured for enhanced oil recovery and carbon-based products manufacturing and finally carbon underground storage and transport based on the economic, environmental and policy factors. Figures 1.2 and 1.3 show a background of the carbon capture and storage process (CCS) and an example of a full-scale ...
... fully depleted oil and gas fields as carbon storage sites over others are the abundance of data and know-how acquired over the field cycle [81]. Computer models have been developed in the oil and gas industry to predict the movement and trapping of hydrocarbons and wells and equipment that have ...
... evaluating the effectiveness and potential of carbon capture technologies. By analyzing various sources and considering factors such as the installation and operation of carbon capture infrastructures, the different methods of carbon dioxide capture and storage, and the impact of carbon capture ...John Nyame. Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs, 2024
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‘Blue-’ and ‘Brown-speckled’ pottery from Qalhât, the Sultanate of Oman (13–16th centuries): Comparison with traditional Omani 19–20 century productions
Representative ‘Blue speckled’ (13–16th centuries) and ‘Brown speckled’ (13–21st century) wares recovered from the excavations in Qalhât or collected around Bahlâ city (Sultanate of Oman) were characterized by XRPD, SEM-EDS, Raman/optical microspectroscopy, and thermal expansion. Minerals present in the body (quartz, augite and albite as major phases, calcite, dolomite, rutile, anatase, phosphate, hematite and magnetite as minor phases) were identified by XRPD and/or Raman spectroscopy. SEM-EDXS microanalysis was performed on the glazes in order to compare their composition, especially ...Liliana Gianni, Hélène Renel, Aleksandar Kremenović, Philippe Colomban. "‘Blue-’ and ‘Brown-speckled’ pottery from Qalhât, the Sultanate of Oman (13–16th centuries): Comparison with traditional Omani 19–20 century productions" in Boletín de la Sociedad Española de Cerámica y Vidrio, Elsevier BV (2020). https://doi.org/10.1016/j.bsecv.2020.06.005
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Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers
This paper presents a dynamic California Bearing Ratio (CBRd) device that can be used on a prepared pavement foundation layer to obtain a certain parameter of the tested material in the laboratory and in situ in a direct and fast way. For the selected natural material (gravel), it is shown that the laboratory CBRd can be used to estimate the compaction and bearing capacity, because it correlates well with the parameters of the standard and modifed Proctor compaction tests. ...korelacija parametara, donji slojevi saobraćajnica, laboratorijska i terenska ispitivanja, dinamički kalifornijski indeks nosivosti CBRd... BETWEEN DYNAMIC CBR AND COMPACTION AND BEARING CAPACITY OF PAVEMENT FOUNDATION LAYERS UDC 624.158 M. Bogdanović,!* S. Bogdanović,? D. Rakić,? and I. B. ikodinović? !TPA for quality assurance and innovation, Belgrade, Serbia, ?University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia ...
... the strength of a material, and depends on factors such as the grain size distribution, shape, and roughness of the grain, water content, and compaction, and can be expressed in the range of 20% < CBR, < 150% [6]. A CBR, test can be performed in the laboratory (CBR,) and in situ (CBR+p) (Fig. 1). ...
... Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers Milan Bogdanović, Snežana Bogdanović, Dragoslav Rakić, Irena Basarić Ikodinović Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Correlation Between Dynamic CBR and Compaction and Bearing ...Milan Bogdanović, Snežana Bogdanović, Dragoslav Rakić, Irena Basarić Ikodinović. "Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers" in Soil Mechanics and Foundation Engineering, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s11204-024-09939-x
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Definition of criteria and alternatives for choosing the optimal mining method deposits when applying multi: Criteria optimization, Belgrade, June 2024
Sanja Bajić, Dragoljub Bajić, Branko Gluščević, Radmila Gaćina, Josip Išek. "Definition of criteria and alternatives for choosing the optimal mining method deposits when applying multi: Criteria optimization, Belgrade, June 2024" in Podzemni radovi, Beograd, jun 2024, Centre for Evaluation in Education and Science (CEON/CEES) (2024). https://doi.org/10.5937/podrad2444071B
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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 ...... stability analysis and detailed design solutions. Author Contributions: Conceptualization, V.R.; methodology, V.R. and V.Č.; validation, V.M., D.S. and N.Ž.; formal analysis, V.R. and V.Č.; investigation, V.R., V.Č., V.M., D.S. and N.Ž.; resources, V.R. and V.Č.; data curation, V.M., D.S. and N.Ž.; writ ...
... specimens and discs were then cut, polished, and shaped to the required height and diameter ratio with tolerances according to the American Society for Testing and Materials—ASTM [17] (Figure 3). Due to the previously shown procedure, monolithic rock material (100% D and 100% AD) specimens and discs of ...
... base mass and phenocrysts of quartz, plagioclase, sanidine, biotite, and hornblende. The accessory ingredients are apatite, zircon, and metallic minerals, while the secondary minerals are calcite, sericite, chlorite, and iron oxides/hydroxides. Mineralogical-petrographic analysis of D and AD samples ...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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Conversion of land areas after coal mine closure and reclamation
Otkopavanje uglja površinski i podzemno praćeno je degradacijom zemljišta, promenom formiranja predela i izmenom flore i faune. Od velikog značaja je razvoj novih naučno utemeljenih pristupa obnovljanje antropogeno poremećenih predela zasnovanih na formiranju rekultivacionih i rudarskih tehnologija. Apsolutno je neophodno obezbediti sveobuhvatno kvalitetno očuvanje zemljišnih i vodnih resursa i odrediti rekultivisano zemljište za novu namenu. U ovom članku je dat pregled najpopularnijih metoda rekultivacije zemljišta i mogućnosti rekultivacije zemljišta nakon završetka rekultivacije i zatvaranja rudnika uglja.... transport, storage and treatment of mineral resources and the working of quarries). According to the Serbian Law on Mining, technical and biological reclamation and spatial arrangement must be performed with the purpose of environmental protection, regeneration, land reclamation and arrangement of the ...
... quality preservation of land and water resources and to designate reclaimed land for a new purpose. This article presents an overview of the ranking most popular methods of land recultivation and possibilities of reclaimed land after the completion of reclamation and closure of the coal mine. Keywords: ...
... IN KU AND SERBIA Europe-wide harmonized system and international platform for collecting, assessing: and mapping the environmental data concerning coal mining activities is still missing in contrast to the sociO-economic concern. The same can be applied to the quality land reclamation and follow-up ...Radmila Gaćina, Bojan Dimitrijević, Sanja Bajić. "Conversion of land areas after coal mine closure and reclamation" in 9th International conference mining and environmental protection MEP 23 Proceedings, Sokobanja, 24-27.05.2023., Belgrade : University of Belgrade - Faculty of mining and geology (2023)
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Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics
Maja Milošević, Predrag Dabić, Sabina Kovač, Lazar Kaluđerović, Mihovil Logar. "Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics" in Clay Minerals, Mineralogical Society (2019). https://doi.org/10.1180/clm.2019.49
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Inhibitory effect of platinum and ruthenium bipyridyl complexes on porcine pancreatic phospholipase A2
Tina Kamčeva, Jörg Flemmig, Bojana Damnjanović, Jürgen Arnhold, Aleksandar Mijatović, Marijana Petković (2011)Fosfolipaza pankreasa A2 (PLA2) igra važnu ulogu u ćelijskoj homeostazi kao iu procesu karcinogeneze. Efekti metalo-lekova koji se koriste kao hemoterapeutici na aktivnost ovog enzima nisu poznati. U ovom radu, interakcija između PLA2 svinjskog pankreasa i dva odabrana kompleksa prelaznih metala — tetrahloro(bipiridin) platine(IV) ([PtCl4(bipi)]) i dihloro (bipiridin) rutenijum(III)hlorida ([RuCl2(bipi)2) ]Cl)—proučavana je. Laserska desorpcija/jonizacija uz pomoć matriksa, vremenska masa spektrometrija (MALDI-TOF MS) i fluorescentna spektroskopija korišćeni su za analizu aktivnosti enzima u odsustvu i prisustvu metalnih kompleksa i za ...... pancreatic phospholipase A2 and [RuCl2(bipy)2]Cl (A) or [PtCl4(bipy)] (B). Peaks of interest are labeled: 486.3 and 490.3 for proton and sodium adducts of LPC 14 : 0 used as internal standard; 496.3 and 518.3 for proton and sodium adducts of LPC 16 : 0; 760.6 and 782.6 for proton and sodium adducts of PC ...
... pancreatic phospholipase A, and [RuCl,(bipy)s|Cl (A) or [PtCl(bipy)] (B). Peaks of interest are labeled: 486.3 and 490.3 for proton and sodium adducts of LPC 14:0 used as internal standard; 496.3 and 518.3 for proton and sodium adducts of LPC 16:0; 760.6 and 782.6 for proton and sodium adducts of PC 16:0 ...
... A2 for 0, 1, 2, 5, 15 and 60 min. Labeled peaks belong to the following ion species: m/z = 760.6 and m/z = 782.6 for proton and sodium adducts of PC 16 : 0, 18 : 1, respectively; m/z = 496.3 and m/z = 518.3 for proton and sodium adducts of LPC 16 : 0, respectively. Proton and sodium adducts of internal ...Tina Kamčeva, Jörg Flemmig, Bojana Damnjanović, Jürgen Arnhold, Aleksandar Mijatović, Marijana Petković. "Inhibitory effect of platinum and ruthenium bipyridyl complexes on porcine pancreatic phospholipase A2" in Metallomics, Oxford University Press (OUP) (2011). https://doi.org/10.1039/c1mt00088h
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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... intercept is 0.067 and represents the mean influence of the initial composition of the biomass and the changes due thermal degradation. Decarboxylation and decarbonylation result in lower O/C and higher H/C, dehydrogenation in lower H/C and demethanization in lower H/C and higher O/C. Evolution ...
... a broad double peak for amorphous carbon between 5 and 29". In addition, HW500f shows sharp intense peaks of quartz and small peaks for Whewellite (Ca(C>Ox)·H»O) at 24.38* and 14.86* (3.650 and 2.987 A) [53] and calcite. The presence of Si and Ca is consistent with the chemical composition (Table ...
... vibrations [85] and may contain overlapping peaks of oxygen functional groups (few oxygen content here). The bands at 873 (untreated) and 872 (treated), 808 (untreated) and 809 (treated) and 748 cm ”' (treated and untreated) for aromatic out-of-plain CH deformation [85,94] are well resolved and relatively ...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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Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential
The study presented in this paper assessed the multidisciplinary approach of geothermal potential in the area of the most southeastern part of the Pannonian basin, focused on resources utilization. This study aims to present a method for the cascade use of geothermal energy as a source of thermal energy for space heating and cooling and as a resource for balneological purposes. Two particular sites were selected—one in a natural environment; the other within a small settlement. Geothermal resources come ...геотермална енергија, Панонски басен, геотермална каскада, енергетска ефикасност, бањски центри, балнеологија, биоклиматска архитектура, стратегије пасивног дизајнирања, модуларни објекти... N.Ć.I. and A.V.; methodology, D.M. and A.V. (hydrogeol- ogy and energy resources); N.Ć.I. and D.I. (architecture and energy needs), validation, D.I. (energy efficiency); investigation, D.M. and A.V.; resources, A.V. and O.K.; writing—original draft preparation, N.Ć.I. (architecture and energy needs) ...
... sizing and positioning of open-air and indoor features, • passive design, and • use of on-site renewable energy sources. The general concept was developed with south-facing wellness and spa/medical units and corresponding utility spaces in the centre with optional additions of hospitality and medical ...
... of auxiliary and technical spaces are planned according to the final capacity, and the modular units and adjacent programs (medical and hospitality) are executed in stages. (2) Open development: The majority of auxiliary and technical spaces are planned according to initial capacity, and the main layout ...Nataša Čuković-Ignjatović, Ana Vranješ, Dušan Ignjatović, Dejan Milenić, Olivera Krunić. "Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential" in Applied Sciences-Basel, МDPI (2021). https://doi.org/10.3390/app11062691
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The ‘Umka’ landslide
We present an in-depth landslide map of the ‘Umka’ landslide near Belgrade, Serbia, at a scale of 1:5000. The map delineates elements at risk, primarily buildings and road infrastructure impacted by the landslide displacements of several cm per year, introduced during frequent reactivation stages. The Main map results from a survey of over 350 buildings and more than 7 km of state and local roads. The acquisition techniques included engineering geological field mapping, building survey, and visual interpretation of ...rizik od klizišta, elementi rizika, kartiranje pomoću drona, ispitivanje objekata, geotehnički monitoringUroš Đurić, Dragana Đurić, Miloš Marjanović, Biljana Abolmasov, Ivana Vasiljević. "The ‘Umka’ landslide" in Journal of Maps, Informa UK Limited (2024). https://doi.org/10.1080/17445647.2024.2418580
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Mineralogical analysis of a clay body from Zlakusa, Serbia, used in the manufacture of traditional pottery
... essential to defining the properties of green pastes during drying and firing (Rivi & Ries, 1997; Milošević et al, 2019a). The tested CIMx and ClIBd samples contain 86.3 and 32.9 wt.% of clay, 10.8 and 6.4 wt.% of silt and 2.8 and 60.6 wt.% of sand fractions, respect- ively. The particle analysis ...
... limestone and dolomite [ Sandstone,shale, marl, and limestone Quartz conglomerate, sandstone quartz breccia, and siltstone 'Sandstone, slate, and phyllite Metasandstone Piedmont deposits Alluvium Microfauna Research area Lat: 43.7883000 Lon:19.9884700 Fig. 1. Geographical (left) and geological ...
... (LCPC, 1987) and calculated according to Atterberg (1911). Results and discussion Chemical composition 'The chemical composition of the CIMx indicates that the raw clay material used for the ceramic production consists mainly of AL,}O, (~16 wt.%) and SiO> (~57 wt.%) and minor CaO, KO and TiO» (Table ...Maja Milošević, Biljana Đorđević, Mihovil Logar. "Mineralogical analysis of a clay body from Zlakusa, Serbia, used in the manufacture of traditional pottery" in Clay Minerals (2020). https://doi.org/10.1180/clm.2020.20
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Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation
The Dark Gate is the monument of culture, part of the cultural and historical complex of the Belgrade Fortress. It is constructed of limestone blocks that after 270 years of exposure to environmental conditions and different anthropogenic influences show wide ranges of decay forms. During 2007, detail registration of all built limestone microfacies and weathering forms was done using tools of monument mapping. A correlation scheme ‘‘intensity– damage category’’ was made according to the type, intensity, and distribution of ...... 1997a, b, Hein- richs and Fitzner 2000, 2007; Fitzner and Heinrichs 2002; Rothert et al. 2007). Also, it was used as reference for a number of researches on techniques for assessment of stone decay (Ball and Young M 2000; Turkington and Smith 2004; Kukela and Seglins 2011). Based on quantitative ...
... damage indices (Fitzner and Heinrichs 2002). Pro- posed linear and progressive damage indices and mapping results enable: @ Springer Environ Earth Sci (2015) 73:6181–6193 Quantification of damage intensities and damage cat- egories that allow conclusive quantification and rating of stone damage ...
... stone and assess degradation rate over the past 7 years. Documentation created in 2007 was compared with the stone condition by direct examination in situ and also by taking new photographs and comparing old and new photo documentation. Changes in final damage cate- gories were noted and mapped ...Maja Franković, Nevenka Novaković, Vesna Matović. "Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation" in Environmental Earth Sciences, Springer Science and Business Media LLC (2015). https://doi.org/10.1007/s12665-014-3843-z
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Formative evaluation of e-learning projects with the logical framework approach
... 2. EVALUATION OF PROGRAM AND PROJECTS The scientific debate on the evaluation of projects becomes more and more interesting in light of the large economic investments in projects and programs, and the difficulty of assessing the genuine and effective economic and social returns. This issue ...
... Evaluation is the activity aimed to study, evaluate and improve programs and projects in all their important aspects, including the diagnosis of the problem to address, their conception and design, their implementation and management, their effects and their efficiency [4]. Evaluation is a cognitive ...
... effects and impacts, on individuals and organizations, to support the applicant in the design phase. This last purpose is increasingly important for all the stakeholders of e-learning projects (i.e. universities, companies, communities, as well as students and employees), due to a global and highly ...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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Debris-flow Susceptibility Assessment in Flow-R: Ribnica River Case Study
Debris flows are among the most dangerous erosional geohazards due to the fast rate of movement and long runout zones. Even though the initiation can be triggered in mountainous areas, inhabited and with steep slopes, their propagation and deposition can endanger not only buildings and infrastructure in the urbanized areas, but also threaten human lives. As these initiation areas usually represent unattainable terrains with rapid vegetation cover development, field observations and aerial photo analysis become high-demanding tasks. Consequently, medium-to-regional ...Ksenija Micić, Miloš Marjanović, Biljana Abolmasov . "Debris-flow Susceptibility Assessment in Flow-R: Ribnica River Case Study" in Proceeding of the 6th Regional Symposium on Landslides in the Adriatic-Balkan Region, ReSyLAB 2024, University of Belgrade, Faculty of Mining and Geology (2024). https://doi.org/https://doi.org/10.18485/resylab.2024.6
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Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)
Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović (2014)Sphene (CaTiSiO5), a calcium titanosilicate ceramic has been prepared from a powder mixture of CaCO3, TiO2 and SiO2 using vibro-milling for homogenization and activation of precursors. During the highpressure and high-temperature synthesis (HPS) process at 4 GPa and 1,200 °C, sphene undergoes into phase transition, from room-temperature phase P21/a to high-temperature phase A2/a. Evidence of that structural phase transition is given in this paper using infrared, Raman spectroscopy and X-ray powder diffraction. Rietveld refinement was employed to get the ...Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović. "Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)" in Physics and Chemistry of Minerals, Springer Science and Business Media LLC (2014). https://doi.org/10.1007/s00269-014-0693-x