Претрага
3201 items
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Selektivna površinska eksploatacija uglja kontinualnim sistemima
Pavlović Vladimir, Ignjatović Dragan, Stepanović Saša, Jovančić Predrag. "Selektivna površinska eksploatacija uglja kontinualnim sistemima" in Monografija nacionalnog značaja, Beograd:Rudarsko-geološki fakultet (2012)
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Antioxidant and antimicrobial activity of some tetradentate Schiff bases and their Cu (II) complexes
Aleksandar Mijatović, Milan Nikolić, Snežana Spasić, Aleksandra N. Žerađanin, Kristina Joksimović, Aleksandar Lolić, Rada Baošić (2020)Šifove baze i njihovi Cu(II) kompleksi su poznati po svojoj biološkoj aktivnosti. U ovom radu proučavana je antibakterijska aktivnost protiv gram-negativnih sojeva Escherichia coli, Pseudomonas aeruginosa i Staphilococcus piogenes, kao i Gram-pozitivnih Staphilococcus piogenes i Pseudomonas aeruginosa, zajedno sa antifungalnim dejstvom protiv Musperg strainilusa, A. Takođe, tehnički jednostavni i brzi testovi kao što su ABTS, HORAC i ORAC korišćeni su za ispitivanje antioksidativne aktivnosti kako bi se uporedili dobijeni rezultati sa različitim tipovima testova. Uprkos tome što je princip ...Aleksandar Mijatović, Milan Nikolić, Snežana Spasić, Aleksandra N. Žerađanin, Kristina Joksimović, Aleksandar Lolić, Rada Baošić. "Antioxidant and antimicrobial activity of some tetradentate Schiff bases and their Cu (II) complexes" in XIII Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, University in Banjaluka, Faculty of Technology (2020)
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Application of stochastic models for mine planning and coal quality control
... following way. First, run of mine composite sulfur (3) must not exceed maximum allowed, Smax [%], during a shift (or period). X S T X T Si n i n i i i i i � � � � �1 1 max (3) Also, all working bucket wheel excavators (BWE's) must mine coal during a period (or shift). This constraint (4) ...
... quality control Dejan Stevanović, Božo Kolonja, Ranka Stanković, Dinko Knežević, Mirjana Banković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Application of stochastic models for mine planning and coal quality control | Dejan Stevanović, Božo Kolonja, Ranka ...
... benches should be mined. A decision variable (1) represents the i-th working bench and takes on a value of either zero (0) or one (1): X i i th th i if working bench if working bench is not m � 1 0 ined � � � (1) with Xi denoting the i-th working coal bench whose predicted sulfur and tonnage values ...Dejan Stevanović, Božo Kolonja, Ranka Stanković, Dinko Knežević, Mirjana Banković. "Application of stochastic models for mine planning and coal quality control" in Thermal Science, Belgrade : Vinča Institute of Nuclear Sciences (2014). https://doi.org/10.2298/TSCI130201031S
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Probabilistic analysis of anisotropic rock slope with reinforcement measures
During the construction of E75 highway through Grdelica gorge in Serbia, a major failure occurred in the zone of reinforced rock slope. Excavation was performed in highly anisotropic Paleozoic schist rock formation. The reinforcement consisted of the two rows of micropile wall with pre-stressed anchors. Forces in anchors were monitored with load cells while benchmarks were installed for superficial displacement measurements. The aim of the study is to investigate possible causes of instability considering different probability distributions of the ...Zoran Berisavljević, Dušan Berisavljević, Miloš Marjanović, Svetlana Melentijević. "Probabilistic analysis of anisotropic rock slope with reinforcement measures" in Geomechanics and Engineering (2023). https://doi.org/10.12989/gae.2023.34.3.285
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The shear strength evaluation of rough and infilled joints and its indications for stability of rock cutting in schist rock mass
Construction of E75 highway section through Grdelica gorge was one of the most demanding projects realized in recent Serbian history. The alignment approximately 25 km long consists of several tens of bridges, two tunnels, three galleries and cuts with total length of 6 km. The alignment passes through highly anisotropic Palaeozoic schist rock formation of different weathering grades. This study focuses on shear strength properties of discontinuities, which are found to be the critical feature contributing to the occurrence ...Dušan Berisavljević, Zoran Berisavljević, Svetlana Melentijević. "The shear strength evaluation of rough and infilled joints and its indications for stability of rock cutting in schist rock mass" in Bulletin of engineering geology and the environment, Springer (2022). https://doi.org/10.1007/s10064-022-02580-8
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Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit
Sanja Bajić, Dragoljub Bajić, Branko Glušćević, Radmila Gaćina. "Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit" in 9th International Conference Mining and Environmental protection MEP, 24 – 27 May 2023, Sokobanja, Serbia , Belgrade : University of Belgrade-Faculty of mining and geology (2023)
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The influence of alkyl polyglucosides (and highly ethoxylated alcohol boosters) on the phase behavior of a water/toluene/technical alkyl polyethoxylate microemulsion system
Marija Ilic, Franz-Hubert Haegel, Vesna Pavelkic, Dragan Zlatanovic, Snezana Nikolic-Mandic, Aleksandar Lolic, Zoran Nedic (2016)The influence of additives (alkyl polyglucoside, Glucopon 600 CS UP and alcohol ethoxylate C18E100) on the behavior of the water/toluene/Lutensol ON 50 (technical oxoalcohol, i-C10E5) microemulsion system as a function of temperature and composition has been investigated. The phase behavior of the microemulsions was determined by vertical sections through the Gibbs phase prism (fish-like phase diagrams). Alkyl polyglucoside shifts the one phase region to lower temperatures compared with water/toluene/Lutensol ON 50 mixtures. This is contrary to the expectation, considering ...микроемулзија, толуен, алкил полиглукозид, оксоалкохол етоксилат, појачивач ефикасности, „fish“ дијаграми... Aleksandar Lolic, Zoran Nedic | Chemical Industry and Chemical Engineering Quarterly | 2016 | | 10.2298/CICEQ141105015I http://dr.rgf.bg.ac.rs/s/repo/item/0008425 Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду омогућава приступ издањима Факултета и радовима запослених ...
... polyethoxylate microemulsion system Marija Ilic, Franz-Hubert Haegel, Vesna Pavelkic, Dragan Zlatanovic, Snezana Nikolic-Mandic, Aleksandar Lolic, Zoran Nedic Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] The influence of alkyl polyglucosides (and highly ...
... Chemical Engineering Quarterly MARIJA ILIĆ! FRANZ-HUBERT HAEGEL? VESNA PAVELKIĆ? DRAGAN ZLATANOVIĆ“ SNEŽANA NIKOLIĆ-MANDIĆ* ALEKSANDAR LOLIĆ ZORAN NEDIĆE !Faculty of Mining and Geology, University of Belgrade, Belgrade, Serbia ŽForschungszentrum Jullich, Institut fur Bio- und Geowissenschaften ...Marija Ilic, Franz-Hubert Haegel, Vesna Pavelkic, Dragan Zlatanovic, Snezana Nikolic-Mandic, Aleksandar Lolic, Zoran Nedic. "The influence of alkyl polyglucosides (and highly ethoxylated alcohol boosters) on the phase behavior of a water/toluene/technical alkyl polyethoxylate microemulsion system" in Chemical Industry and Chemical Engineering Quarterly, National Library of Serbia (2016). https://doi.org/ 10.2298/CICEQ141105015I
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Tehnika mapiranja kamenih fasada
Franković Maja, Matović Vesna (2014)Franković Maja, Matović Vesna. "Tehnika mapiranja kamenih fasada" in Zbornik radova = Proceedings / Međunarodni simpozijum o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija [u okviru skupa] Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, XXVI, Beograd:Društvo za ispitivanje materijala i konstrukcija (2014): 461-476
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Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija
Srđan D. Kostić (2013-11-04)U ovoj disertaciji, cilj istraživanja bio je određivanje dinamičkih svojstava potresaizazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija.Analiza potresa izvedena je sa dva aspekta – u prvom delu istraživanja izučavane suvremenske serije oscilovanja tla za vreme potresa, a u drugom delu vršena je analizastabilnosti fenomenološkog Baridž-Knopof modela bloka sa oprugom. Vremenske serijeoscilovanja tla proučavane su primenom postupka analize surogat podataka, kao ikorišćenjem metoda analize nelinearnih vremenskih serija (primena teoreme orazvijanju skalarne vremenske serije). Analiza vremenskih serija izvedena je ...potres, naponsko stanje, podzemne prostorije, bifurkacije, vremenskaserija, deterministički haos, stohastičnost, perturbacije, vremensko kašnjenje, jačina trenja... distribuciju i јаупо заорбамапје беја, i ргегаде, аКо зе пауеде те ашога па паблп одгедеп од strane autora ili дамаоса licence, čak i и komercijalne зугће. Ovo је najslobodnija од svih licenci. 2. Autorstvo — nekomercijalno. Dozvoljavate итпогамапје, distribuciju i javno saopštavanje dela, i prerade ...
... Dozvoljavate umnožavanje, distribuciju i javno saopštavanje dela, i prerade, ako se navede ime autora na način određen od strane autora ili davaoca licence i ako se prerada distribuira pod istom ili sličnom licencom. Ova licenca ne dozvoljava komercijalnu upotrebu dela i prerada. 5. Autorstvo — bez prerade ...
... Dozvoljavate umnožavanje, distribuciju i javno saopštavanje dela, i prerade, ako se navede ime autora na način određen od strane autora ili davaoca licence i ako se prerada distribuira pod istom ili sličnom licencom. Ova licenca dozvoljava komercijalnu upotrebu dela i prerada. Slična je softverskim licencama ...Srđan D. Kostić. "Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-11-04)
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Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija
Srđan D. Kostić (2013-11-04)U ovoj disertaciji, cilj istraživanja bio je određivanje dinamičkih svojstava potresaizazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija.Analiza potresa izvedena je sa dva aspekta – u prvom delu istraživanja izučavane suvremenske serije oscilovanja tla za vreme potresa, a u drugom delu vršena je analizastabilnosti fenomenološkog Baridž-Knopof modela bloka sa oprugom. Vremenske serijeoscilovanja tla proučavane su primenom postupka analize surogat podataka, kao ikorišćenjem metoda analize nelinearnih vremenskih serija (primena teoreme orazvijanju skalarne vremenske serije). Analiza vremenskih serija izvedena je ...potres, naponsko stanje, podzemne prostorije, bifurkacije, vremenskaserija, deterministički haos, stohastičnost, perturbacije, vremensko kašnjenje, jačina trenja... distribuciju i јаупо заорбамапје беја, i ргегаде, аКо зе пауеде те ашога па паблп одгедеп од strane autora ili дамаоса licence, čak i и komercijalne зугће. Ovo је najslobodnija од svih licenci. 2. Autorstvo — nekomercijalno. Dozvoljavate итпогамапје, distribuciju i javno saopštavanje dela, i prerade ...
... Dozvoljavate umnožavanje, distribuciju i javno saopštavanje dela, i prerade, ako se navede ime autora na način određen od strane autora ili davaoca licence i ako se prerada distribuira pod istom ili sličnom licencom. Ova licenca ne dozvoljava komercijalnu upotrebu dela i prerada. 5. Autorstvo — bez prerade ...
... Dozvoljavate umnožavanje, distribuciju i javno saopštavanje dela, i prerade, ako se navede ime autora na način određen od strane autora ili davaoca licence i ako se prerada distribuira pod istom ili sličnom licencom. Ova licenca dozvoljava komercijalnu upotrebu dela i prerada. Slična je softverskim licencama ...Srđan D. Kostić. "Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-11-04)
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OER obrazovni sadržaji kao spona između akademskog i preduzetničkog znanja
... kursevi na edX platformi Nakon postupka registracije i prijave korisnik se upisuje na željeni edX kurs. Pre upisa na kurs korisnicima je omogućeno da pročitaju osnovne informacije o ciljevima kursa, potrebnim predznanjima, tempu kursa kao i o autorima i obrazovnim institucijama koje stoje iza odabranog ...
... različitih formi pitanja, što sadržaj čini značajno interesantnijim. Platforma omogućava i kreiranje diskusionih grupa u okviru svakog kursa putem kojih je moguća komunikacija sa autorima kursa kao i sa svim polaznicima tog kursa. 136 Slika 2.Izgled edX kursa Kada je reč o kreiranju kurseva ...
... kao i stvaranje uslova za celoživotno obrazovanje,ciljevi projekta sui kreiranje samih OER sadržaja, kao i održavanje treninga i obuka za njihovo kreiranje i publikovanje zaodabrane predstavnike obrazovnih ustanova i kompanija. Konačno, jedan od ciljeva je i da se razviju i primene procedure i uputstva ...Ivan Obradović, Ranka Stanković, Marija Radojičić. "OER obrazovni sadržaji kao spona između akademskog i preduzetničkog znanja" in The fifth Symposium Mathematics and Applications 2014,17-18 October 2014, Belgrade V no. 1, Beograd : Matematički fakultet Univerziteta u Beogradu (2014)
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Imputing missing data using grey system theory and the biplot method to forecast groundwater levels and yields
Groundwater management is one of today’s important tasks. It has become necessary to seek out increasingly reliable methods to conserve groundwater resources. Dependable forecasting of the amounts of groundwater that can be abstracted in a sustainable manner requires longterm monitoring of the groundwater regime (rate of abstraction and groundwater levels). Monitoring of the groundwater source for the town of Bečej, Serbia had been disrupted for multiple years. The objective of the paper is to assess the possibility of reinterpreting ...Jelena Ratković, Dušan Polomčić, Zoran Gligorić, Dragoljub Bajić. "Imputing missing data using grey system theory and the biplot method to forecast groundwater levels and yields" in Geologia Croatica, Hrvatski geološki institut (2022). https://doi.org/10.4154/gc.2022.14
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Development and Application of Methodology for Quantification of Overbreaks in Hard Rock Tunnel Construction
A methodology for determining overbreaks in hard rock tunnel construction using the drill-and-blast technique is presented in this paper. The methodology was developed for and applied to crystalline medium- to thick-bedded limestone, but it can be used in any jointed hard rock mass. Overbreaks are inevitable in hard rock tunnelling in a low-confinement environment (shallow tunnels up to several hundred meters deep) as a result of wedge failures along unfavourably oriented discontinuities caused by blasting. It is widely accepted ...hard rock, drill-and-blast, geological overbreak, technological overbreak, stability criterion, discontinuity orientation, tunnel constructionZoran Berisavljević, Dragoljub Bajić, Vojkan Jovičić. "Development and Application of Methodology for Quantification of Overbreaks in Hard Rock Tunnel Construction" in Applied Sciences, MDPI (2023). https://doi.org/10.3390/app13031379
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Pleistocenske Cricetinae Srbije
Zoran Marković (1997)Zoran Marković. Pleistocenske Cricetinae Srbije, Beograd:Rudarsko-geološki fakultet, 1997
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Miocenski glodari (rodentia) Srbije
Zoran Marković (2008)Zoran Marković. Miocenski glodari (rodentia) Srbije, Beograd:Rudarsko Geološki Fakultet, 2008
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Ground surface subsidence monitoring using sentinel-1 in the “Kostolac” open pit coal mine
Zoran Gojković, Milan Kilibarda, Ljiljana Brajović, Miloš Marjanović, Aleksandar Milutinović, Aleksandar Ganić (2023)Open pit coal mining affects surrounding populated areas, resulting in terrain surface deformation. Surface deformation should be monitored as often as possible to control deformations and prevent potential incidents. This paper analyzes time series deformation estimated from the Sentinel-1 satellite images using the Persistent Scatterer Interferometry method to monitor subsidence rates caused by open pit mining activities. It is possible to measure deformations using classical geodetic methods, but those are rarely used in practice because they are time-consuming and ...Zoran Gojković, Milan Kilibarda, Ljiljana Brajović, Miloš Marjanović, Aleksandar Milutinović, Aleksandar Ganić. "Ground surface subsidence monitoring using sentinel-1 in the “Kostolac” open pit coal mine" in Remote Sensing (2023). https://doi.org/10.3390/rs15102519
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Primena zakona verovatnoće u rešavanju geotehničkih problema
Zoran Radić (1991)Zoran Radić. Primena zakona verovatnoće u rešavanju geotehničkih problema, Beograd:Rudarsko-geološki fakultet, 1991
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Geotehnički modeli aluvijalnih sedimenata Novog Beograda
Zoran Radić (2007)Zoran Radić. Geotehnički modeli aluvijalnih sedimenata Novog Beograda, Beograd:Rudarsko Geološki Fakultet, 2007
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Pre-failure deformation monitoring as rockfall prediction tool
... Marjanović, Biljana Abolmasov, Zoran Berisavljević, Marko Pejić, Petko Vranić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Pre-failure deformation monitoring as rockfall prediction tool | Miloš Marjanović, Biljana Abolmasov, Zoran Berisavljević, Marko Pejić ...
... 1088/1755-1315/833/1/012197 1 Pre-failure deformation monitoring as rockfall prediction tool Miloš Marjanović1, Biljana Abolmasov1, Zoran Berisavljević1, Marko Pejić2, and Petko Vranić2 1University of Belgrade, Faculty of Mining and Geology, Đušina 7, Belgrade, Serbia 2University ...
... center of the instrument. In addition to X,Y,Z and reflection intensity (I) information, it is possible to extract color information of each point. This scanner has such features, so each point in the cloud is provided with X,Y,Z,I,R,G,B information, but R,G,B values can be also collected by using external ...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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Definisanje baze podataka za izbor sistema odvodnjavanja površinskih kopova uglja
Zoran teodorović (1998)Zoran teodorović. Definisanje baze podataka za izbor sistema odvodnjavanja površinskih kopova uglja, Beograd:Rudarsko-geološki fakultet, 1998