Претрага
628 items
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The application of ArcGIS for assessing the potential of solar energy in urban area: The case of Vranje
In order to determine the solar energy potential for a specified location, it is crucial to consider the latitude, altitude, slope, terrain morphology, atmospheric conditions, etc. Such a complex calculation and mapping of solar energy can be done using the ArcGIS geoprocessing tool, named Area Solar Radiation (ASR). By using the ASR tool, supported with the adequate input data, it is possible to calculate the maximum solar radiation energy (irradiation) for a defined area and for a specified time ...... creating: the solar maps. These models are usually connected with computer software applications, with most of them using ESRIs ArcGIS as their base system (Sarmiento N. et al.. 2019). ESRI's ArcGIS can provide the appropriate modeling platform for the estimation of solar radiation energy. Many of ...
... of Europe. Polygonal entities represent a state of land cover differentiated in 44 classes, divided into a 3-level hierarchical classification system (Stojkovic S., 2017). The COPERNICUS website includes CLC datasets for different years with the corresponding land cover changes (Copernicus ...
... ns (units: cells per side). These are upward-looking, hemispherical raster representations of the sky and do not have a geographic coordinate system. These rasters are square (equal number of rows and columns). The recommended · sky dimension value for a daily interval greater than 14 days ...Boban Pavlović, Milica Pešić-Georgiadis. "The application of ArcGIS for assessing the potential of solar energy in urban area: The case of Vranje" in 12th International Conference on Energy and Climate Change, 9-11 October 2019, Athens - Greece, Energy Policy and Development Centre (KEPA) of the National and Kapodistrian University of Athens (2019)
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Strategic Environmental Assessment in the Application of Preventive Protection for Wind Farm Noise—Case Study: Maestrale Ring Wind Farm
Determining the spatial position of wind turbines is the initial and most important phase in the development of a wind farm project. In this sensitive phase, all potential problems that may arise in the later stages of project development should be prevented by means of spatial and urban planning instruments. This makes it possible to achieve maximum use of the potential of wind in a particular space and, thus, fulfil the technical and economic requirements of the project while ...Energija,energetski inženjering i elektroenergetska tehnologija,obnovljivi izvori energije, održivost i životna sredina,električni i elektronski inženjering,kontrola i optimizacija,inženjering... noise for the day—evening period (coordi- nates are given in the Gauss-Kruger system). Figure 3. Results of modeling the spatial dispersion of noise for the night period (coordinates are given in the Gauss-Kruger system). Energies 2021, 14, 6174 9 of 15 The results of the partial noise ...
... various development documents, makes it possible today to consider the consequences of proposed development concepts and spatial changes in the early conceptual stages of a planning proposal, while respecting the capac- ity of the space and involving the public in all phases of developing and adopting ...
... Hungary. The central part of the location is situated at 45°56′02.51″ N i 19°41′07.29″ E (more detailed coordinates in the Gauss-Kruger coordinate system are given in Figures 2 and 3). Figure 1. Position and spatial organization of the planned Maestrale Ring wind farm. (Source: Google Earth with ...Boško D. Josimović, Aleksandar Cvjetić, Božidar Manić. "Strategic Environmental Assessment in the Application of Preventive Protection for Wind Farm Noise—Case Study: Maestrale Ring Wind Farm" in Energies, MDPI AG (2021). https://doi.org/10.3390/en14196174
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BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties
Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković (2023)To investigate the influence of spinel structure and sintering temperature on the functional properties of BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface from acetylacetonate precursors. As-prepared powders were additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the detailed examination of phase composition and morphology. The magnetic, dielectric, and ...ferroelectric, dielectric properties, magnetic properties, titanate/ferrite composites, phase composition... / Nip ,s Znp,s Fe)Oa samples. Table 1. The phase composition of prepared composites. In parenthesis next to the phase chemical formulae crystal system and space group are presented as well as corresponding, PDF card numbers from the ICDD database. Phase abundances are calculated by the RIR method ...
... with a cold head and capacitor cell mounted on it. Pfeiffer vacuum turbo molec- ular pump maintained 104 mbar pressure. CTI Cryogenics refrigerating system model 22 mounted on the cold head was applied to a lower temperature to 150 K. Lakeshore 340 temperature controller with hater attached at the ...
... K. Ferroelectric and leakage current measurements were conducted in the electrical field range of 5-40 kV/cm on the Precision Multiferroic Test System with High Voltage Interface (Radiant Technologies, Inc., Albuquerque, New Mexico). 4. Conclusions The aim of this study was the investigation ...Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković. "BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties" in Inorganics, MDPI AG (2023). https://doi.org/10.3390/inorganics11020051
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Proširivanje upita zasnovano na leksičkim resursima
U radu je opisano kako se leksički resursi za srpski jezik i softverski alati, razvijeni u okviru Grupe za jezičke tehnologije Univerziteta u Beogradu, mogu koristiti za unapređenje postavljanja upita. Rezultati pretrage mogu biti značajno unapređeni korišćenjem različitih leksičkih resursa, kakvi su morfološki rečnici i semantičke mreže. Izloženi pristup može se iskoristiti i u Sistemu naučnih, tehnoloških i poslovnih informacija, jer je efikasno pretraživanje ovog dragocenog resursa, imajući u vidu njegovu heterogenost i obim, kao i preovladavajući tekstualni sadržaj, ...... improved by using various lexical resources, such as morphological dictionaries and semantic networks. The outlined approach may be used within the System of scientific, technical and business information. Efficient exploration of such a valuable source, in view of the diversity and amount of archived ...Ranka Stanković, Ivan Obradović, Cvetana Krstev. "Proširivanje upita zasnovano na leksičkim resursima" in SNTPI 09 - Naučno-stručni skup Sistem naučnih, tehnoloških i poslovnih informacija, Beograd 19. i 20. jun 2009, Beograd : Fakultet informacionih tehnologija (2009)
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Eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje
U radu su analizirani eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje. Period analize je prvih šest meseci tekuće godine. Analiza je vršena sa aspekta ostvarene proizvodnje, kvaliteta uglja, efektivnog vremena rada, kapacitetnog i vremenskog iskoršćenja i zastoja sistema. Za poređenje podataka različitih parametara koji po svojoj prirodi nisu međusobno uporedivi, u radu su korišćene metode višekriterijumskog odlučivanja.... current year. The analysis was performed in the aspect of reached production, coal quality, effective working time, capacity and time utilization and system stoppage using multicriteria decision–making methods. Ključne reči: proizvodnja uglja, zastoji, metode višekriterijumskog odlučivanja Keywords: coal ...Marko Lazić, Filip Miletić, Milena Lekić, Veljko Rupar, Željko Petrović, Lazar Žujović . "Eksploatacioni učinci ugljenih sistema na površinskom kopu Tamnava–Zapadno polje" in 10th International Conference Coal 2021, Jugoslovenski komitet za površinsku eksploataciju, Zlatibor (2021)
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Actual contamination of the Danube and Sava rivers at Belgrade (2013)
Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer (2014)rečni sistemi, stanje zagađenja, organski zagađivači, teški metali, skrining analize, non-target screening... The overall goal of this case study was to illustrate how complex and com- plementary can be a more comprehensive analytical view on an aquatic system. To the best of our knowledge this approach has been ignored as far as possible in environmental geochemical studies in the Danube Basin catchment ...
... filtered using LUT Syringe Filters PTFE, 13 mm, 0.45 μm and transferred to low-volume autosampler vials. HPLC–ESI-MS analyses. An Agilent 1100 HPLC system with an Agilent 6320 spherical ion trap mass spectrometer and electrospray ionization was used. The hormones were sepa- rated on a Phenomenex Kinetex ...
... 1175 Ecotoxicological tests The ecotoxicity of samples was assessed using liquid-dried luminescent bacteria Vibrio fischeri NRRL B-11177 with system LUMIStox, Dr. Lange. The toxicity endpoint was deter- mined as the reduced luminescence emission after incubation in the presence of selected chemicals ...Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer. "Actual contamination of the Danube and Sava rivers at Belgrade (2013)" in Journal of the Serbian Chemical Society, National Library of Serbia (2014). https://doi.org/10.2298/JSC131105014A
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Mogućnost korišćenјa toplotnih pumpi sa otpadnom toplotom iz postrojenјa za prečišćavanјe otpadnih voda kao toplotnim izvorom
U narednom periodu se planira izgradnja nekoliko desetina sistema za prečišćavanje otpadnih voda u većim gradovima u Srbiji. Iskustva iz postrojenja koja su trenutno u radu, pokazuju da bi prečišćena otpadna voda, s obzirom na protok i temperaturu, mogla da predstavlja značajan izvor obnovljive energije. U radu su prikazani primeri dobre prakse korišćenja ove energije u sistemima daljinskog grejanja u zemljama Evropske unije. Analiziran je rad postrojenja za prečišćavanje otpadnih voda u Šapcu i razmotrena je mogućnost njegovog korišćenja ...... countries. The operation of the wastewater treatment plant in the city of Šabac was analysed and the possibility of its use in the local district heating system was considered. Index terms - heat pump, district heating systems, wastewater treatment plant I UVOD oplotna pumpa je uređaj je uređaj koji ...Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Boban Pavlović. "Mogućnost korišćenјa toplotnih pumpi sa otpadnom toplotom iz postrojenјa za prečišćavanјe otpadnih voda kao toplotnim izvorom" in Energija, Ekonomija, Ekologija, University Library in Kragujevac (2021). https://doi.org/10.46793/EEE21-1.11I
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Application of Expansive Mortars for the Formation of Artificial Screens During Blasting in Urban Areas
During construction of buildings in urban areas, sometimes there is a need to blast solid rock mass in the immediate vicinity of the surrounding buildings. In that case, the aim is not only to increase the efficiency of blasting, but also to reduce harmful effects of ground vibration induced by blasting. At the same time, it is very important to protect the buildings located in the safe zone from the blast site as well as remaining rock mass around ...Milanka Negovanović, Lazar Kričak, Stefan Milanović, Nikola Simić, Jelena Majstorović. "Application of Expansive Mortars for the Formation of Artificial Screens During Blasting in Urban Areas" in 31st International Conference Ecological Truth & Environmental Research-EcoTER'24, Sokobanja, 18-21. jun 2024, Tehnički fakultet u Boru (2024)
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Photocatalytic Activity of the V2O5 Catalyst toward Selected Pharmaceuticals and Their Mixture: Influence of the Molecular Structure on the Efficiency of the Process
Sanja J. Armaković, Aleksandra Jovanoski Kostić, Andrijana Bilić, Maria M. Savanović, Nataša Tomić, Aleksandar Kremenović, Maja Šćepanović, Mirjana Grujić-Brojčin, Jovana Ćirković, Stevan Armaković (2023)Due to the inability of conventional wastewater treatment procedures to remove organic pharmaceutical pollutants, active pharmaceutical components remain in wastewater and even reach tap water. In terms of pharmaceutical pollutants, the scientific community focuses on -blockers due to their extensive (over)usage and moderately high solubility. In this study, the photocatalytic activity of V2O5 was investigated through the degradation of nadolol (NAD), pindolol (PIN), metoprolol (MET), and their mixture under ultraviolet (UV) irradiation in water. For the preparation of V2O5, facile ...DFT analysis, metoprolol, nadolol, nanomaterial characterization, photocatalysis, pindolol, β-blocker... E. Software update: The ORCA program system—Version 5.0. WIREs Comput. Mol. Sci. 2022, 12, e1606. [CrossRef] Neese, F. Software update: The ORCA program system, version 4.0. WIREs Comput. Mol. Sci. 2018, 8, e1327. [CrossRef] Neese, E. The ORCA program system. WIREs Comput. Mol. Sci. 2012, 2, 73-78 ...
... dye. J. Catal. 2014, 2014, 370696. Saravanan, R.; Gupta, V.; Mosquera, E.; Gracia, E. Preparation and characterization of V)Os /ZnO nanocomposite system for photocatalytic application. J. Mol. Liqg. 2014, 198, 400—412. [CrossRef] Rasheed, R.; Mansoor, H.; Abdullah, T.; Juzsakova, T.; Al-Jammal, ...
... quantum chemistry program package. J. Chem. Phys. 2020, 152, 224108. [CrossRef] [PubMed] Neese, E. The SHARK integral generation and digestion system. J. Comput. Chem. 2022, 44, 381-396. [CrossRef] Armaković, S.; Armaković, S. Atomistica.online—Web application for generating, input files for ORCA ...Sanja J. Armaković, Aleksandra Jovanoski Kostić, Andrijana Bilić, Maria M. Savanović, Nataša Tomić, Aleksandar Kremenović, Maja Šćepanović, Mirjana Grujić-Brojčin, Jovana Ćirković, Stevan Armaković. "Photocatalytic Activity of the V2O5 Catalyst toward Selected Pharmaceuticals and Their Mixture: Influence of the Molecular Structure on the Efficiency of the Process" in Molecules, MDPI AG (2023). https://doi.org/10.3390/molecules28020655
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Primjena magnetometrijskih ispitivanja na arheološkom lokalitetu Nedeljkova humka
... t h - e a s t E u ro p e Magnetometrijska je istraživa- nja obavljeno protonskim magnetome- trom-gradiometrom sa Overhauzerovim efektom (GEM System model GSM- 19GW) u “hodajućem”modu. S obzirom na to da je ispitivani prostor oranica, sa veoma mladom po- ljoprivrednom kulturom, donja sonda ...Mirko Petković, Vesna Cvetkov, Milorad Ignjatović, Dejan Naumov. "Primjena magnetometrijskih ispitivanja na arheološkom lokalitetu Nedeljkova humka" in Aktuelna interdisciplinarana istraživanja tehnologije u arheologiji jugoistočne Evrope: zbornik radova, Prvi skup Sekcije za arheometriju, arheotehnologiju, geoarheologiju i eksperimentalnu arheologiju Srpskog arheološkog društva, Beograd, 28.02.2020., Beograd : Srpsko arheološko društvo (2020)
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Sastav i teksture minerala FeO-Fe2O3-TiO2 sistema u vulkanskim stenama i porfirskim ležištima bakra Borske metalogenetske zone
Aleksandar Luković (2021)Proces obrazovanja minerala iz sistema FeO-Fe2O3-TiO2 u uzorcima vulkanskih stena i porfirskih orudnjenja borske zone prikazan kroz pojavu magnetita/hematita i njihovih alteracija. Minerali ove zone su ispitivani optičkim metodama (odbijena i propuštena svetlost), SEM-EDS/BSD, XRPD, LA-ICP-MS metodama. Rezultati ispitivanja su, pored glavnih Fe – Ti oksida, otkrili prisustvo ferijskog ilmenita u hornblenda andezitima I vulkanske faze kao i magnetita sa većim koncetracija Cr u zoni zlotske magnetne anomalije. Ispitivanje uzoraka iz bušotina porfirskih sistema borske zone otkriva postojanje nekoliko ...... ABSTRACT Composition and textures of the minerals of FeO-Fe2O3-TiO2 system in volcanic rocks and porphyry copper deposits of the Bor metallogenic zone The process of formation of mineral system FeO-Fe2O3-TiO2 in samples from volcanic rocks and porphyry deposits of Bor zone is explained ...
... of Zlot magnetic anomaly. Examination of samples from porphyry system drill holes of Bor zone reveals different types of (under hydrothermal condition) magnetite/hematite in different porphyry alteration zone. Magnetite of this system is presented as type I in paragenesis with bornite i chalcopyrite ...
... Analytical Silicon Drift Detector povezanim sa INCAEnergy 350 Microanalysis System; 2) talasno-disperzivnim spektrometrom (WDS – wavelength-dispersive spectrometer) iste firme Oxford Instruments, model INCA WAVE500 system. U prethodnom procesu pripreme, preparati su napareni slojem ugljenika debljine ...Aleksandar Luković. Sastav i teksture minerala FeO-Fe2O3-TiO2 sistema u vulkanskim stenama i porfirskim ležištima bakra Borske metalogenetske zone, Beograd : [A. Luković], 2021
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Crystal structure of K3EuSi2O7
alkalni silikati elemenata retkih zemalja, kristalna struktura, sinteza metodom fluksa, rendgenska difrakcija na monokristalu... the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs ACCEPTED MANUSCRIPT This is an early electronic version of an as-received manuscript that has been accepted for publication in the Journal of the Serbian Chemical Society but has not ...
... collection Chemical formula K3EuSi2O7 Diffractometer Gemini S (Oxford Diffraction) Mr 437.44 Absorption correction Analytical + Empirical Crystal system Hexagonal Measured reflections 10007 Space group P63/mcm Independent reflections 528 Temperature, K 298 Observed [I> 2σ(I)] reflections 392 a ...
... Carolina Academy of Science 12 (2014) 200 (https://scholarcommons.sc.edu/jscas/vol12/iss1/1) 17. Rigaku Oxford Diffraction, CrysAlisPro Software system, Rigaku Corporation, Oxford, 2018 18. Rigaku. PDXL 2: Integrated powder X-ray diffraction software. Version 2.8.3.0. Rigaku Corporation, Tokyo ...Sabina Kovač, Predrag Dabić, Aleksandar Kremenović. "Crystal structure of K3EuSi2O7" in Journal of the Serbian Chemical Society, National Library of Serbia (2021). https://doi.org/10.2298/JSC210218026K
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Substitution reactions of some novel sterically hindered monofunctional Pd(II) complexes
Reakcije supstitucije monofunkcionalnih kompleksa [(TLtBu)PdCl]+ i [Pd(tpdm)Cl]+, gde je TLtBu = 2,6-bis[(1,3-di-terc-butilimidazolin-2-imino)metil]piridin i tpdm = terpiridindimetan, sa nukleofilima kao što su: tiourea, I−, Br−, NO2−, piridin i dimetil-sulfoksid (DMSO) proučavani su u 0,1 M vodenom rastvoru NaClO4 u prisustvu 10 mM NaCl. Reakcije su sprovedene na tri različite temperature (288, 298 i 308 K) korišćenjem tehnike zaustavljenog protoka na različitim temperaturama. Reakcije supstitucije su praćene pod uslovima pseudo prvog reda sa velikim viškom nukleofila. Dobijeni rezultati pokazuju da kompleks ...... Suprasil cells. Kinetic measurements were performed on an Applied Photophys- ics SX.18 stopped-flow instrument coupled to an online data acqui- sition system. The temperature was controlled throughout all kinetic experiments to ±0.1 K. 2.3. Kinetic measurements The substitution reactionsof the [(TLtBu)PdCl]+ ...
... Suprasil cells. Kinetic measurements were performed on an Applied Photophys- ics SX.18 stopped-flow instrument coupled to an online data acqui- sition system. The temperature was controlled throughout all kinetic experiments to +0.1 K. 2.3. Kinetic measurements The substitution reactions of the [(TL")PdCl]* ...
... The studied [Pd(tpdm)Cl]+ complex also includes pyridine rings, but in the tridentate tpdm ligand they are separated by methylene groups, so the system is more flexible in comparison with terpyri- dine. This is confirmed by the crystal structure of the [Pd(tpdm)Cl]+ complex [24]. Observed results ...Aleksandar Mijatović, Jovana Bogojeski, Biljana Petrović, Živadin D. Bugarčić. "Substitution reactions of some novel sterically hindered monofunctional Pd(II) complexes" in Inorganica Chimica Acta, Elsevier BV (2011). https://doi.org/10.1016/j.ica.2011.11.031
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Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko-energetskim kompleksima
Jelena R. Malenović - Nikolić (2016-07-12)Efikasnost funkcionisanja sistema upravljanja zaštitom životne sredine u rudarskoenergetskimkompleksima zavisi od stepena sprovođenja usvojene politike zaštiteživotne sredine i primene preventivnih mera zaštite životne sredine. Nedostatakfinansijskih sredstava za unapređivanje tehnologije eksploatacije, transporta, pripreme iprerade energetskih mineralnih sirovina u našim rudarsko-energetskim kompleksima,negativno utiče na ostvarivanje ciljeva zaštite životne sredine, a posledice radnihaktivnosti rudarsko-energetskih kompleksa dovode do smanjenja nivoa kvalitetavazduha, vode i zemljišta...rudarsko-energetski kompleks, životna sredina, sistem upravljanja,višekriterijumsko odlučivanje, modeliranje... 876:502/504(043.3) 502.175:622:620.9(043.3) Environmental Management System Modelling in Mining and Energy Complexes Summary Efficient functioning of an environmental management system (EMS) in mining and energy complexes depends on the degree of implementation of adopted ...
... potreba integracije postojećih modela upravljanja QMS/EMS (Quality management system/Environmental Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko‐energetskim kompleksima 13 management system), HACCP (Hazard Analysis Critical Control Points) i OHSAS (Occupational Health ...
... Измењено: 2023-10-14 03:59:37 Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko- energetskim kompleksima;Environmental management system modelling in mining and energy complexes. Jelena R. Malenović - Nikolić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду ...Jelena R. Malenović - Nikolić. "Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko-energetskim kompleksima" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-07-12)
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Палеогеографска реконструкција јадарског блокатоком млађег палеозоика
Весна Цветков (2018)... BERNOULLI, D., FUGENSCHUH, B., MATENCO, L., SCHEFER, S., SCHUSTER, R.,TISCHLER, M., USTASZEWSKI, K., (2008): The Alpine- Carpathian-Dinaridic orogenic system: correlation and evolution of tectonic units. Swiss J. Geosci., 101, 139-183 VAN DER VOO, R. (1990): Phanerozoic paleomagnetic poles from Europa ...Весна Цветков. "Палеогеографска реконструкција јадарског блокатоком млађег палеозоика" in Симпозијум Никола Пантић - човек и природа у спирали времена (90 година од рођења научника), Зборник радова, Српско геолошко друштво (2018)
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Using gravity data to define structural correlation affecting the formation of Neogene basins
A gravity survey can help to define the structural correlation in the study area. The structures that have influenced the development of Neogene basins can be defined using gravity data. By applying mathematical transformations to gravity data, the geological structures (faults, nappes, etc.) that impacted the formation of Neogene basins can be defined. We have taken the part of the Dinarides as the test region. The paper presents the results obtained using the procedure residual, vertical gradient, and total ...Snežana Ignjatović, Ivana Vasiljević, Branisav Sretković, Milanka Negovanović. "Using gravity data to define structural correlation affecting the formation of Neogene basins" in The 54th International October Conference on Mining and Metallurgy, Bor Lake, Serbia, 18-21 October 2023, Bor : University of Belgrade, Technical Faculty in Bor (2023)
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Pre-failure deformation monitoring as rockfall prediction tool
... is annual (once a year) since it has been proven (based on early results in the period 2011-2013) that there is not enough activity on the slope to measure monthly or seasonal sequences (time epochs). • Acquisition time should be early spring, on a cloudy but not rainy day, to provide constant ...
... resolution at specified range, but it is rarely required. As an active sensor it radiates the beam of monochromatic near-infrared domain through a system of mirrors that precisely record horizontal and vertical angles during emission and reception. By measuring the return time and assuming the constant ...
... result, it generates a discrete surface model consisting of millions of points called point clouds, referenced to a relative Euclidean coordinate system originating from the optical center of the instrument. In addition to X,Y,Z and reflection intensity (I) information, it is possible to extract ...Miloš Marjanović, Biljana Abolmasov, Zoran Berisavljević, Marko Pejić, Petko Vranić. "Pre-failure deformation monitoring as rockfall prediction tool" in IOP Conference Series: Earth and Environmental Science, IOP Publishing (2021). https://doi.org/10.1088/1755-1315/833/1/012197
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Geotehnički aspekti izgradnje visećeg pešačkog mosta u Starom gradu u Užicu
U radu su prikazani rezultati geotehničkih istraživanja za potrebe izgradnje visećeg pešačkog mosta preko klisure reke Đetinje u Užicu. Predviđeno je da most, sistema prednapregnute trake, omogući prelaz pešacima sa desne dolinske strane na stranu Starog grada, koja je opasana strmom liticom (cca. 40 m visine). Za potrebe formiranja geotehničkog modela i strukturnog sklopa krečnjačke stenske mase korišćen je postupak fotogrametrijskog snimanja dronom. Predviđeno je da se zatežuća sila (od oko 30 MN), koju most prenosi na obalni stub, ...fotogrametrija, stabilnost kosina, pukotine, prednapregnuta sidra, test granične nosivosti, paker (Ližonov) test... of drone photogrammetry. The tensile force (approx. 30 MN) induced on the bridge pillar should be accepted and transfered to the rock mass by the system of prestressed anchors. Two investigation test were performed on anchors installed in sub-horizontal boreholes. Successful anchor load test and numerical ...Zoran Berisavljević, Miloš Marjanović, Uroš Đurić. "Geotehnički aspekti izgradnje visećeg pešačkog mosta u Starom gradu u Užicu" in Zbornik radova / Međunarodno naučno-stručno savetovanje Geotehnički aspekti građevinarstva i zemljotresno inženjerstvo, Vrnjačka banja, 1-3. novembar 2023., Beograd : Savez građevinskih inženjera Srbije (2023.)
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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... shorter duration of the CBR, test. Compared with classic CBR testing, CBR, has the advantage of not using a loading device, that is, a counterweight system as required for static testing (typically heavy construction machin- ery). Instead, the CBR, test is performed by fixing the CBR attachment to the ...
... [9, 10]. The tests with the CBR,„ device were performed in accordance with TP BF-StB Teil B 7.1:2012. Static plate load test The counterweight system is not part of the device, but it is required to perform the test. A plate with a diameter of 500 mm was used to determine the modulus of deformation ...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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Elektromagnetska sprega sistema litosfera-atmosfera-jonosfera
Aleksandra B. Kolarski (2016-08-25)Radio talasi vrlo niskih frekvencija VLF (eng. Very Low Frequency) frekventnog opsega od 3 do 30 kHz, koji se prostiru talasovodom Zemlja-jonosfera (50 -90 km) su, kao što je poznato, efikasni i nezamenljivi u osmatranju pojava u niskoj jonosferi, sa tla...prostiranje talasa vrlo niskih frekvencija, talasovod Zemlja-jonosfera, globalno električno kolo, atmosfersko električno pražnjenje, kratkotrajne svetlosne pojave... ije elekrona u sredini gde su se dogodile TLE pojave, u koje spadaju: a) rani/brzi (eng. early/fast), b) rani/spori (eng. early/slow) i c) rani poremećaji dugog oporavka, LORE (eng. LOng Recovery Early VLF events) i 2) poremećaji na trasi VLF signala koji nastaju mehanizmom opisanim u odeljku ...
... signal level have been determined. Detected VLF perturbations have been classified, according to literature, into early events, signatures of LEP events and LORE (LOng-Recovery Early events). On the extremely strong atmospheric activity occurred during the night 27th - 28th May, 2009, 71 sprite ...
... tmosphere-ionosphere system Aleksandra B. Kolarski Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Elektromagnetska sprega sistema litosfera-atmosfera-jonosfera;Electromagnetical coupling in lithosphere-atmosphere- ionosphere system | Aleksandra B. Kolarski ...Aleksandra B. Kolarski. "Elektromagnetska sprega sistema litosfera-atmosfera-jonosfera" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-08-25)