Претрага
129 items
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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 ...... Mass of detaching stone material Medium · High _ Number and dimensions of fissures – Small Low Low Low Large _ brick, connected with lime mortar. 283 processed, rectan- gular, less often trapezoid stone blocks are embedded in the facade of the gate. An average size of blocks is 50/25 ...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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Callovian (Middle Jurassic) Sphriganaria (Brachiopoda) from the Jordan Valley (Middle East)
Howard R. Feldman, Barbara V. Radulović, Fayez Ahmad. "Callovian (Middle Jurassic) Sphriganaria (Brachiopoda) from the Jordan Valley (Middle East)" in Historical Biology (2023). https://doi.org/10.1080/08912963.2022.2122823
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State and perspective of individual household heating in Serbia: A survey-based study
This paper presents the results of the household survey on individual household heating systems in Serbia. The survey was conducted in the period October to December 2020 with the participation of 1100 households with individual household heating systems. The information collected in the questionnaire can be separated into three main parts: basic household data, current heating system characteristics, and households’ perceptions and attitudes. The survey results provide unique and comprehensive information concerning individual household heating systems and the main ...Boban Pavlović, Dejan Ivezić, Marija Živković. "State and perspective of individual household heating in Serbia: A survey-based study" in Energy and Buildings, Elsevier BV (2021). https://doi.org/10.1016/j.enbuild.2021.111128
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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... Rajapaksha AU, Lim JE, Zhang M, Bolan N, Mohan D, et al. Biochar as a sorbent for con- taminant managementin soil and water: A review. Chemosphere. 2014; 99: 19—33. https://doi.org/10. 1016/j.chemosphere.2013.10.071 PMID: 24289982 dos Reis GS, Larsson SH, Oliveira HP, Thyrel M, Lima EC. Sustainable ...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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Rezultati probnog ispitivanja geotehničkih prenapregnutih sidara u Užicu (Stari grad)
Vladimir Kovačević (2024)Za potrebe izrade završnog rada na četvrtoj godini Rudarsko-geološkog fakulteta, studijskog programa Geotehnika, pod mentorstvom doc. dr Zorana Berisavljevića, odabrana je tema „Rezultati probnog ispitivanja geotehničkih prenapregnutih sidara u Užicu (Stari grad)“. Osnovni metodološki pristup koji je korišćen za rešavanje postavljenog problema predstavlja kabinetsko istraživanje dostupne dokumentacije, analiza i interpretacija rezultata izvedenih geoloških,geotehničkih i geomehaničkih istraživanja. Predstavljene su osnovne informacije,karakteristike i upotreba prednapregnutih geotehničkih sidara.Analiziran je tok testiranja granične nosivosti prednapregnutih sidara. Na osnovu izvršenih geotehničkih istraživanja terena i ispitivanja ...... 400 M O O O / 180 : : P o c i n k o v a n a rabic mreza 1 . 6 x 1 9 x 1 9 m m na svaka 3-4cm Štapovi i limovi - specifikacija Limovi - rekapitulacija P O S Tip Materijal n Širina Debljina Dužina Jed.težina |Težina po kom., Ukupna težina Debljina ...
... geotehničkim propisima, projekat Je realizovan uz angažovanje muhltidisciplinarne ekipe inženjera projektanata. Za izgradnju pešačkog mosta preko reke Đetinje, koji povezuje magistralni put M-—19/1 ı Stari grad u Užicu, sprovedeni su temeljni geomehanički i geotehnički istražni radovi. U svrhu ...
... skele za izvođenje dve subhorizontalne bušotine u području obalnog stuba duž Starog grada. Paralelno, na suprotnoj strani (desna dolinska strana reke Đetinje), korišćenjem hidrauličkog čekića, otvoren Je pristupni put kako bi se omogućilo bušenje Još dve bušotine u području drugog obalnog stuba ...Vladimir Kovačević. Rezultati probnog ispitivanja geotehničkih prenapregnutih sidara u Užicu (Stari grad), 2024
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Pleistocene rhinoceros from Bogovina Cave: the first report of Stephanorhinus hundsheimensis Toula, 1902 (Mammalia, Rhinocerotidae) from Serbia
Finds of Pleistocene rhinoceros are rare in Serbia, and only one species (the woolly rhinoceros Coelodonta antiquitatis Blumenbach, 1799) has been reported so far. The current paper presents the dental material of an extinct so-called Hundsheim rhinoceros, Stephanorhinus hundsheimensis Toula, 1902 from Bogovina Cave (East ern Serbia). Both the morphological and metric characteristics of the teeth are consis tent with the attribution to S. hundsheimensis. Unfortunately, the rhinoceros material originated from an uncertain geological context, so there is no ...... Kučaj Mt. near the town of Boljevac in Eastern Ser- bia (43°53'49" N, 21°55'31" E; Figure 1). The cave is set in Upper Jurassic to Lower Cretaceous lime- stones of the Kučај zone (Dimitrijević, 1997) in the central part of the Carpatho-Balkanides. This approximately 1,200 m thick succession of pre- ...
... Paläontologische Abhandlungen, Abteilung A, Paläozoologie, III(3/4):617-666. Nedeljković, D. 2006. Coelodonta antiquitatis (Blumenbach, 1799) iz nanosa reke Save kod Ravnja. Rad Muzeja Vojvodine, 47-48:67-76. (In Serbian with English abstract) Pandolfi, L., Boscato, P., Crezzini, J., Gatta, M., Moroni ...Predrag Radović, Miloš Radonjić, Emmanuel Billia. "Pleistocene rhinoceros from Bogovina Cave: the first report of Stephanorhinus hundsheimensis Toula, 1902 (Mammalia, Rhinocerotidae) from Serbia" in Palaeontologia Electronica, Coquina Press (2020). https://doi.org/10.26879/985
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Multihazard Exposure Assessment on the Valjevo City Road Network
Miloš Marjanović, Biljana Abolmasov, Svetozar Milenković, Uroš Đurić, Jelka Krušić, Mileva Samardžić Petrović (2019)Miloš Marjanović, Biljana Abolmasov, Svetozar Milenković, Uroš Đurić, Jelka Krušić, Mileva Samardžić Petrović. "Multihazard Exposure Assessment on the Valjevo City Road Network" in Spatial Modeling in GIS and R for Earth and Environmental Sciences, Elsevier Inc (2019). https://doi.org/10.1016/B978-0-12-815226-3.00031-4.
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Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine
Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović (2019)Availability is one of the most used terms in maintainability engineering. This concept is used to denote: The quality of service of an engineering system, i.e., machines, weak points’ analysis, asset management, as well as making decisions in the process of life cycle management. Availability is an overall indicator and contains partial indicators that are oriented towards reliability, maintenance, and logistical support. Availability presents a variable value and changes in time and space. Usually, availability is shown as the ...... this case can be obtained as: A(t) = µ λ+ µ + λ λ+ µ · e−(λ+µ)·t (5) where the stationary value of the availability can be obtained as: A = kA = lim t→∞ A(t) = µ λ+ µ = 1 1 + λ µ (6) The kA value is called the coefficient of availability and is obtained when A(t) is calculated for t→∞, or when ...Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović. "Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine" in Energies, MDPI AG (2019). https://doi.org/10.3390/en12214044
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A tool for identifying the criticality in the disordered systems with metastable dynamics
Svetislav Mijatović, Dragutin Jovković, Sanja Janićević, Stefan Graovac, Đorđe Spasojević. "A tool for identifying the criticality in the disordered systems with metastable dynamics" in Physica A: Statistical Mechanics and its Applications, Elsevier BV (2021). https://doi.org/10.1016/j.physa.2021.125883
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A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia
When assessing the potential of renewable energy alternatives for electricity generation, it is necessary to implement a multi-perspective approach that includes economic, technical, environmental, and socio-political criteria. For the evaluation of criteria and alternatives, the Fuzzy Analytical Hierarchy Process (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a fuzzy numerical value scale for the assessment of expert judgments and energy indicators provides a more sensitive ...... participates with 61% (RS2, 2016). The largest part of hydro potential (over 70%) is only concentrated on several rivers: Danube, Drina, Velika Morava, Lim, and Ibar. The remaining part of hydro potential and the possibility for its utilization needs to be determined following the non-energy criteria that ...Boban Pavlović, Dejan Ivezić, Marija Živković. "A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia" in Energy Reports, Elsevier BV (2021). https://doi.org/10.1016/j.egyr.2021.02.072
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Tektonska evolucija istočne periferije timočke eruptivne oblasti
Stefan Zujić (2024)U radu su predstavljeni rezultati proučavanja tektonskih i litostratigrafskih karakteristika istočnog oboda Timočke eruptivne zone. Zaključci o geološkim odnosima u okviru Timočke eruptivne oblasti i susednih geotektonskih jedinica izvedeni su na osnovu podataka prikuljenih tokom terenskih istraživanja i podataka dobijenih iz publikovanih radova. Rezultati rada ukazuju da je teren koji je bio tema ovog istraživanja, u strukturno-tektonskom smislu oblikovan tokom glavnih geodinamičkih događaja u okviru Karpato-balkanskog orogenog luka. Analizom strukturnog sklopa su utvrđeni glavni deformacioni događaji koji su predsavljeni ...Stefan Zujić. Tektonska evolucija istočne periferije timočke eruptivne oblasti, 2024
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Tectonic evolution of the Circum-Moesian orocline of the Carpatho-Balkanides: Paleomagnetic constraints
Emő Márton, Vesna Cvetkov, Miodrag Banješević, Gábor Imre, Aleksandar Pačevski. "Tectonic evolution of the Circum-Moesian orocline of the Carpatho-Balkanides: Paleomagnetic constraints" in Journal of Geodynamics, Elsevier BV (2024). https://doi.org/10.1016/j.jog.2024.102058
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Генеза хидротермалног Cu-Au система Чукару Пеки (Источна Србија)
Милош Велојић (2021)Главни циљ испитивања хидротермалног система Чукару Пеки је разумевање процеса који су довели до његовог настанка, а посебно еволуције рудоносних флуида из којих је настала рудна минерализација. Утврђено је да је овај систем настао у периоду пре 86,78 - 85,19 Ma из магматског интрузива који је био богат водом и имао висок оксидативни потенцијал. Током хлађења, из овог магматског интрузива су издвојени веома врели флуиди, који су имали температуре изнад 600°С и висок салинитет. У ...Борска металогенетска зона, Тимочки магматски комплекс, порфирска лежишта, високосулфидациона лежишта, флуидне инклузије, рудне парагенезе, геохронологија, хидротермалне алтерације, LA-ICP-MS... Слика cp061-5: Лимонит (lim) запуњава пукотине са плавим линијама око алтерисаних силикатних минерала, одбијена светлост. Слика cp061-6: Колоформни пирит (py) и лимонит (lim) у пукотинама у алтерисанoм андезиту, одбијена светлост ...
... утискивања магме и дајкова. Могу се препознати у околини плутонских масива Ваља Стрж и Црвена река. 2) Магматско-хидротермалне брече, настале дејством врелих гасова из утиснуте магме. Уочене су у у близини Борске реке и Великог Кривеља. 3) Фреатомагматске брече, настале фреатомагматским експлозијама услед ...
... утицаја на тип минерализације и економски значај лежишта. Слика 57: Оксидисали колоформни пирит (py) и лимонит (lim) у пукотинама у алтерисанoм андезиту, фотомикрографија у одбијеној светлости. Узорак је узет из бушотине FMTC1330 на дубини од 738 m. 6.5.4 Ореоли ...Милош Велојић. Генеза хидротермалног Cu-Au система Чукару Пеки (Источна Србија), Београд : [М. Велојић], 2021
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Supstitucione reakcije Pd(II) kompleksa sa biološki važnim biomolekulima
Aleksandar M. Mijatović, Jovana Bogojeski. "Supstitucione reakcije Pd(II) kompleksa sa biološki važnim biomolekulima" in Hemijski pregled, Srpsko hemijsko društvo (2017)
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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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A comparison between ARIMA, LSTM, ARIMA-LSTM and SSA for cross-border rail freight traffic forecasting: the case of Alpine-Western Balkan Rail Freight Corridor
Miloš Milenković, Miloš Gligorić, Nebojša Bojović, Zoran Gligorić. "A comparison between ARIMA, LSTM, ARIMA-LSTM and SSA for cross-border rail freight traffic forecasting: the case of Alpine-Western Balkan Rail Freight Corridor" in Transportation Planning and Technology, Informa UK Limited (2023). https://doi.org/10.1080/03081060.2023.2245389
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Hidrogeohemija prirodnih radioaktivnih elemenata u podzemnim vodama Srbije
Marina D. Ćuk (2018-02-23)Osnovni cilj doktorske disertacije predstavljao je definisanje prirodnih koncentracija (engl. background values) U, Th, i K u podzemnim vodama, i definisanje hidrogeohemijskih uslova koji utiču na distribuciju navedenih elemenata u podzemnim vodama...prirodni radioaktivni elementi, podzemna voda, geohemijske sredine, hidrogeohemijski uslovi, neparametarska statistička analiza, logistički model, hidrohemijsko modeliranje... se u sedimentim stenama ovi elementi uglavnom pojavljuju u povišenim koncentracijama u glinovitim sedimentima u odnosu na evaporite i krečnjake (Lima et al. 2005). 13 2.2.1. Hidrogeohemijski ciklus kalijuma Kalijum pripada Ia grupi periodnog sistema elemenata i svrstava se u grupu ...
... toksičnost, ali uranovi potomci, pogotovo alfa emiteri, 226Ra i 222Rn, predstavljaju opasne radiološke hazarde, posebno ako se unesu u organizam (Lima et al. 2005). Pojedini radionuklidi se mogu lako rastvarati u vodi, u zavisnosti od mineraloškog i geohemijskog sastava stena, redoks uslova i vremena ...
... Press, Cary NC. 95. Lide R. 1994. Uranium. In: Lide DR (ed.). Handbook of Chemistry and Physics. 74th ed. CRC Press, Boca Raton, pp.31 – 32. 96. Lima A, Albanese S, Cicchella D. 2005. Geochemical baselines for the radioelements K, U, and Th in the Campania region, Italy: a comparison of stream sediment ...Marina D. Ćuk. "Hidrogeohemija prirodnih radioaktivnih elemenata u podzemnim vodama Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-02-23)
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Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications
The Vardar-Tethyan mega-suture between the Eurasian and Adria (Gondwana) margins comprises remnants of oceanic lithosphere of Neotethys and distal parts of the adjacent continental margins including unconformable Late Cretaceous sedimentary cover and Cenozoic igneous rocks of post-obduction age. This study provides kinematic constraints for displacements and rotations affecting the Serbian part of the West Vardar and Jadar-Kopaonik units after the closure of the Neotethyan (= Sava) Ocean. The targets of the paleomagnetic research were Late Cretaceous sediments representing an ...... samples also with a sun compass. The geographic coordinates were measured by GPS (Garmin GPSmap 60CSx). From the wider Rudnik Mts. area (Fig. 2), lime- stones/marls (7 localities, 157 independently oriented samples) and flysch (one locality, 12 independently ori- ented samples) of Upper Cretaceous ...
... 43�1602400 20�4405700 Granodiorite 9/9 27.1 23.3 221 3.5 36 Gvozdac 3416–421 43�2003100 20�4504800 Granodiorite 6/6 33.0 48.5 17 16.9* 37 Samokovska reka 3394–406 43�2105100 20�4404800 Granodiorite 9/13 17.3 22.0 57 6.9 38 Šutanovina 3533–544 43�2204400 20�4603700 Granodiorite 6/12 45.8 35.7 ...
... Granodiorite 9/9 27.1 23.3 221 3.5 3407-415 20°44'57” 36 Gvozdac 43°20/31"” — Granodiorite 6/6 33.0 48.5 17 16.9* 3416-421 20°45'48” 37. Samokovska reka 43°21'51"” — Granodiorite 9/13 17.3 22.0 57 6.9 3394-406 20°44'48” 38 Sutanovina 43°22'44"” — Granodiorite 6/12 45.8 35.7 60 8.9 3533-544 20°46'37” ...Vesna Lesić, Emo Márton, Violeta Gajić, Dragana Jovanović, Vesna Cvetkov. "Clockwise vertical-axis rotation in the West Vardar zone of Serbia: Tectonic implications" in Swiss Journal of Geosciences, Basel : Springer International Publishing (2018). https://doi.org/10.1007/s00015-018-0321-8
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Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)
Mt. Avala is located on the southern margin of the Pannonian basin (SPB), a border zone between the uplifted morphostructures of the Dinarides and Carpathian-Balkanides. Similar to the Pannonian basin, tectonostratigraphic evolution of the Mt. Avala area during the last 23 Ma has is characterized by syn- and post-rifting processes as well as tectonic inversion. Here, we present the results of field investigations of the Miocene‒Pliocene dynamics that led to different spatial positions of the same stratigraphic units (e.g. ...... Topčiderska Reka and Zavojnička Reka valleys (Fig. 16). These valleys represent the principal drainage systems of the study area. At the same time, Torlak Hill and Mt. Avala represent a drainage divide be- cause the Topčiderska Reka water course flows to the Sava River whereas the Zavojnička Reka runs to ...
... Numbers mark the studied outcrops and figure numbers in the text. Key: TO – Torlak fault; RF – Rakovica fault; TR – Topčiderska reka fault; BP – Beli Potok fault; ZR – Zavojnička reka fault; ZU – Zuce fault, KA – Kaludjerica fault. Note: Traces of the aforementioned faults are taken from MAROVIĆ et al. 2007) ...
... streams have Figure 16. The digital elevation model (DEM) of the studied area with the positions of the two main drainage systems (Topčiderska reka and Zavojnička reka) as well as the topographic cross-sections with locations of the main faults (1–4). For the legend, see Fig. 1. The original elevation data ...Ljupko Rundić, Meri Ganić, Slobodan Knežević, Dejan Radivojević, Miloš Radonjić. "Stratigraphic implications of the Mio-Pliocene geodynamics in the area of Mt. Avala: new evidence from Torlak Hill and Beli Potok (Belgrade, Serbia)" in Geologia Croatica (2019). https://doi.org/10.4154/gc.2019.11
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Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal
Sanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović (2018)glukoza, fruktoza, аktivni ugalj, hidrotermalni tretman, aktivacija hidroksida, teški metali, metilen plavo... Guidance on Wastewaters Sampling; International Organization for Standardization: Geneva, Switzerland, 2007. 47. Teh, S.J.; Hamid, S.B.A.; Lai, C.W.; Lim, S.Y. ZnCl2/NaCl-catalysed hydrothermal carbonization of glucose and oil palm shell fiber. Nanosci. Notechnol. Lett. 2015, 7, 611–615. [CrossRef] 48 ...Sanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović . "Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal" in Minerals, MDPI (2018)