Претрага
534 items
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The Newton method for solving nonlinear equations based on aggregation operators
Nebojša M. Ralević, Dejan Ćebić (2019)Nebojša M. Ralević, Dejan Ćebić. "The Newton method for solving nonlinear equations based on aggregation operators" in XLVI International Symposium on Operational Research SYM-OP-IS, Kladovo, 15-18.9.2019, Универзитет у Београду (2019)
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The state and perspective of the natural gas sector in Serbia
The strategy of long-term energy development of Serbia identifies an increase of share of natural gas in final energy consumption as one of the main aims. Serbia has signed a strategic agreement with the Russian Federation on cooperation in the oil and gas sector, within which the project South Stream pipeline is planned to be realized. In addition, the Republic of Serbia has signed the Treaty that establishes the Energy Community and accepted the obligation to implement the Energy ...Dejan Ivezić, Marija Živković, Dušan Danilović, Aleksandar Madžarević, Miloš Tanasijević. "The state and perspective of the natural gas sector in Serbia" in Energy Sources, Part B: Economics, Planning and Policy, Taylor & Francis Group, LLC (2016). https://doi.org/http://dx.doi.org/10.1080/15567249.2013.858796
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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... <20 |421+16 | <2 26 +2 +300 +l.4 +40 +400 AC2 <10 <3 107+9 | <20 | 39+13 ·l.4 +14 HW500f 620+16 - 69.6 ...
... values for the wavenumbers of the maxima (Y„„.), the intensity ratio Ip/Ic, and the in-plain crystallite size L, of graphitic carbon obtained from In/Ic according to the literature by L, = (- 12.6 nm + 0.0333 M )/(Ip/IG) [102,103] (with the laser wavelength 2, = 532 nm) are given in Table 9. Raman ...
... 104823. Tsechansky L, Graber ER. Methodological limitations to determining acidic groups at biochar sur- faces via the Boehmtitration. Carbon. 2014; 66: 730—733. http://dx.doi.org/10.1016/j.carbon.2013. 09.044. Schievano A, Berenguer R, Goglio A, Bocchi S, Marzorati S, Rago L, et al. Electroactive ...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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Formative evaluation of e-learning projects with the logical framework approach
... LITERATURE [1] Rosenberg, L., Posner, L., The logical framework: A manager's guide to a scientific approach to design and evaluation, Practical Concepts Incorporated, Washington ...
... Programmes: Delivering Business Change in Multi-Project Environments, HM Stationary Office, London, 2005. [14] Shadish W. R., Cook T. D., Leviton L. C., Foundations of program evaluation: Theories of practice, Sage, Newbury Park, CA, 1991. [15] Sangrà A., Vlachopoulos D., Cabrera N., Building ...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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Split-Desktop software for the analysis of fragment size distribution of blasted rock mass
Milanka Negovanović, Lazar Kričak, Stefan Milanović, Jovan Marković, Nikola Simić, Snežana Ignjatović (2023)Drobljenje stena je najvažniji pokazatelj u proceni efekata miniranja pri proizvodnom miniranju u površinskoj eksploataciji. Stepen drobljenja stena ima veliki uticaj na efikasnost daljih operacija utovara, transporta, drobljenja i mlevenja. Optimalno drobljenje stena pri proizvodnom miniranju utiče na smanjenje ukupnih troškova proizvodnje. Stoga je pouzdana procena veličine drobljenja odminirane stenske mase veoma važno pitanje, ne samo u operacijama miniranja, već i u rudarskoj proizvodnji. Za predviđanje distribucije veličine komada odminirane stenske mase postoje različiti empirijski modeli. KUZ-RAM model omogućava ...Milanka Negovanović, Lazar Kričak, Stefan Milanović, Jovan Marković, Nikola Simić, Snežana Ignjatović. "Split-Desktop software for the analysis of fragment size distribution of blasted rock mass" in 9th International Conference Mining and environmental protection, Sokobanja, Serbia, 24 – 27. May 2023, Belgrade : University of Belgrade, Faculty of Mining and Geology (2023)
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English for Geology Students. 1
Lidija Beko (2023)... Comprehension...........it.. 161 Part3 SEDIMENTARY ROCKS ........etee e 164 Mocabulary/:f. a . . K. L. LD.JOO y. OR dd R- tt . wwR o 166 Reading Comprehension...........i.. 167 (Grammar Sporeyi:20. 7 . .ČR L . val ı ı . Mg (evaii6e oOM caL , , 58500 168 JExerGcises-. .NA . JNA NrT. . .7. TON A . .. . ...Lidija Beko. English for Geology Students. 1, Belgrade : The Faculty of Mining and Geology, 2023
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Zaštita od miniranja
Suzana Lutovac, Miloš Gligorić (2024)Suzana Lutovac, Miloš Gligorić. Zaštita od miniranja, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet, 2024
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Influence of Initial Treatment on the Survival and Recurrence in Patients With Differentiated Thyroid Microcarcinoma
... is in agreement with previous guidelines suggesting that microcarcinomas of the thyroid gland can be adequately treated by lobectomy alone followed by L-thyroxine therapy.22 Ito et al18 conclude that hemithyroidectomy with elective lymph node dissection without RAI therapy is an adequate surgical treatment ...
... treated with total thyroidectomy followed by RAI ablation. Patients who did not undergo postsurgical treatment with RAI received replacement or suppressive L-thyroxine therapy and were referred only for postsurgical 131I whole-body scan (131I-WBS) and follow-up. Radioiodine Therapy Because there was no consensus ...
... a patient did not achieve successful ablation or in case of persistent disease (patients with persistently detectable thy- roglobulin [Tg] levels on L-thyroxine treatment) or recurrence detec- tion on imaging. Posttherapy 131I-WBS was performed 72 to 96 hours after the RAI treatment in all patients. ...Jasna Mihailović, Ljubomir Stefanović, Ranka Stanković. "Influence of Initial Treatment on the Survival and Recurrence in Patients With Differentiated Thyroid Microcarcinoma" in Clinical Nuclear Medicine, Lippincott Williams & Wilkins (2013). https://doi.org/10.1097/RLU.0b013e3182872ed2
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Flood protection and water utilization of karst poljes: example of Gatačko Polje, Eastern Herzegovina
Tina Dašić, Ljiljana Vasić (2020)Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry,Global and Planetary ChangeTina Dašić, Ljiljana Vasić. "Flood protection and water utilization of karst poljes: example of Gatačko Polje, Eastern Herzegovina" in Environmental Earth Sciences, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s12665-020-08987-4
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Uporedna analiza stabilnosti završnih kosina površinskog kopa „Veliki Krivelj“
Mihajlo Topalović (2023)Površinski kop „Veliki Krivelj“ nalazi se u blizina grada Bora i u neposrednoj blizini sela Krivelj. Od 2018. godine je u vlasništvu kineske kompanije „Zijin“ koja ima udeo od 63% vlasništva celokupnog RTB-a Bor. Na površinskom kopu obavlja se masovna eksploatacija rude bakra opremom visokog kapaciteta. Za bušenje se koriste bušilice prečnika od 250 do 310 mm, a za utovar minirane rude i jalovine bageri čija je zapremina kašike 15 m3 i 22 m3. Za površinski kop „Veliki Krivelj“ ...Mihajlo Topalović. Uporedna analiza stabilnosti završnih kosina površinskog kopa „Veliki Krivelj“, 2023
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Strain partitioning along a curved strike-slip fault system during indentation: inferences from analogue modelling
Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović (2021)Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović. "Strain partitioning along a curved strike-slip fault system during indentation: inferences from analogue modelling" in GeoMod 2021, Doorn, the Netherlands, 19.-23.9.2021., Utrecht University (2021)
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Electronic Dictionaries - from File System to lemon Based Lexical Database
In this paper we discuss some well-known morphological descriptions used in various projects and applications (most notably MULTEXT-East and Unitex) and illustrate the encountered problems on Serbian. We have spotted four groups of problems: the lack of a value for an existing category, the lack of a category, the interdependence of values and categories lacking some description, and the lack of a support for some types of categories. At the same time, various descriptions often describe exactly the same ...... Windhouwer, M., Wittenburg, P., and Wright, S. E. (2008). ISOcat: Corralling Data Cate- gories in the Wild. In LREC. Khemakhem, M., Foppiano, L., and Romary, L. (2017). Automatic Extraction of TEI Structures in Digitized Lex- ical Resources using Conditional Random Fields. In Iz- tok Kosem, et al. ...
... partially supported by Serbian Ministry of Education and Science under the grants #III 47003 and 178003. 9. Bibliographical References Attia, M., Tounsi, L., and Van Genabith, J. (2010). Au- tomatic Lexical Resource Acquisition for Constructing an LMF-Compatible Lexicon of Modern Standard Ara- bic. Technical ...
... GLOT international, 7(3):97–100. Francopoulo, G. (2013). LMF Lexical Markup Frame- work. John Wiley & Sons. Ide, N., Kilgarriff, A., and Romary, L. (2000). ITRI-00- 30 A Formal Model of Dictionary Structure and Con- tent. In Proceedings of EURALEX 2000, pages 113–126. Institut für Maschinelle ...Ranka Stanković, Cvetana Krstev, Biljana Lazić, Mihailo Škorić. "Electronic Dictionaries - from File System to lemon Based Lexical Database" in Proceedings of the 11th International Conference on Language Resources and Evaluation - W23 6th Workshop on Linked Data in Linguistics : Towards Linguistic Data Science (LDL-2018), LREC 2018, Miyazaki, Japan, May 7-12, 2018, European Language Resources Association (ELRA) (2018)
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Application of stochastic models for mine planning and coal quality control
... by the matrix: X X X X X X X X X n n m m mn 11 12 1 21 22 2 1 2 � � � � � � � where m is the number of stocked layers, l – the length of the bed, and n = l/d. The volume of the material reclaimed from layer i in cut j is denoted by vij. The average grade of material reclaimed in whole ...
... during a period, assumes that during any period, the available BWE's do not exceed the total number of potential working coal benches: 3X, = BWE (4) i=l In practice, the surface coal mine is divided into a number of mining phases, which are mined bench by bench, each bench represented by a horizontal layer ...
... definite integral of that function: I f X X X f X X X fV a b a b n a b n n n ( ) ( , , , ) ( )� �d d d x1 2 1 2 1 1 2 2 � � � dx � l (8) on the region of integration: Stevanovi}, D. R., et al.: Application of Stochastic Models for Mine Planning ... 1366 THERMAL SCIENCE: Year 2014 ...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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Prostorni položaj ofiolita istočne Vardarske zone: geofizičko-geološki model i njegove geodinamičke implikacije
Dragana D. Petrović (2015-12-29)Centralni deo Balkanskog poluostrva je geotektonski veoma složen. Tetis je zatvorentokom gornjeg mezozoika, a ofioliti na zapadu i ofioliti Vardarske zone predstavljajuostatke nekadašnjih okeanskih prostora. Najistočniji deo Vardarske zone razlikuje se odsvih ostalih ofiolita na Balkanskom poluostrvu i karakteriše se najizraženijim suprasubdukcijskimafinitetom. Istočna vardarska zona locirana je u centralom delu Srbije.Na severu se prostire do Apusena u Rumuniji, a na jugu obuhvata cetralni deoMakedonije i Peonias zonu u severnoj Grčkoj. Istočna vardarska zona se nalazi istočnood geotektonske jedinice Kopaonik ...... koje, ako se ne sagledaju u celini, mogu imati isključivo lokalni značaj i obrnuto. 29 Sl ik a 9. S at el its ki a se m bl až (L an ds at 7 E TM +, k om bi na ci ja k an al a: 7 , 5 , 4 ) 30 Analiza glavnih komponenti (PCA) predstavlja veoma značajan postupak ...
... redukcije na pol u polarnom koordinarnom sistemu može da se izrazi kao (Baranov, 1957; Mendonça and Silva, 1993; Cooper and Cowan, 2005; Li, 2008): L(θ) =I/[sin(I ) + i cos(I )cos(D − θ)] 2 gde je θ talasni broj, I i D su inklinacija i deklinacija. U praksi ovaj operator postaje nestabilan, odnosno ...
... profila modelovano je još jedno telo, koje bi trebalo da pripada istom masivu i koje je najverovatnije intrudovano u SMM (Slika 41, označeno sa L), ali koje ne izbija na površinu (andezitski sil ?). Na osnovu dobijenog modela izvodi se i zaključak da je sam Lecki vulkanogeni masiv ispod površine ...Dragana D. Petrović. "Prostorni položaj ofiolita istočne Vardarske zone: geofizičko-geološki model i njegove geodinamičke implikacije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-12-29)
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Model inteligentnog sistema adaptivnog upravljanja procesom prerade rude
Ivana M. Jovanović (2016-01-13)U oblasti procesa prerade rude, flotacijska koncentracija predstavlja jednu od najznačajnijih i najčešće primenjivanih metoda separacije korisnih od nekorisnih minerala. Samim tim, veoma je važno osigurati uspešan rad flotacijskog postrojenja kroz dostizanje zadovoljavajućih tehno-ekonomskih pokazatelja. Cilj upravljanja procesom flotacijske koncentracije je upravo optimizacija kvaliteta i iskorišćenja korisne komponente u koncentratu uz maksimizaciju profita. Shodno tome, istraživanja na polju modelovanja i upravljanja ovim procesom zauzimaju značajno mesto u praksi kontolnog inženjenringa.Teorijska istraživanja u okviru doktorske disertacije obuhvatila su analizu položaja ...flotacijska koncentracija, modelovanje, upravljanje, inteligentni sistem, soft kompjuting, fazi logika, veštačke neuronske mreže... klase –74 + 0 μm Gustina pulpe u osnovnom flotiranju 1190 g/l Gustina pulpe u I prečišćavanju 1150 g/l Gustina pulpe u dopunskom flotiranju 1120 g/l Gustina pulpe u II prečišćavanju 1130 g/l Gustina pulpe u III prečišćavanju 1125 g/l pH vrednost na I prečišćavanju 11,5 – pH vrednost na dopunskom ...
... vrednosti protoka vazduha Promene u: Greška u kvalitetu koncentrata Greška u iskorišćenju L L N N H H N H 0.7 H 0.3 N 0.4 N 0.6 L vazduh kvalitet iskorišćenje Ako je kvalitet H i iskorišćenje L tada je protok vazduha H Ako je kvalitet N i iskorišćenje N tada je protok vazduha N ...
... 197, pp. 260–267 314. Yianatos, J., Bergh, L., Vinnett, L., Contreras, F., Díaz, F., 2010. Flotation rate distribution in the collection zone of industrial cells. Minerals Engineering 23, pp. 1030–1035 315. Yianatos, J., Carrasco, C., Bergh, L., Vinnett, L., Torres C., 2012. Modelling and simulation ...Ivana M. Jovanović. "Model inteligentnog sistema adaptivnog upravljanja procesom prerade rude" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-01-13)
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Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems
Dejan Ćebić, Nebojša M. Ralević (2021)Dejan Ćebić, Nebojša M. Ralević. "Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems" in Journal of Mathematical Chemistry, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10910-021-01253-3
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Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija
Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić (2016)... in the range from 0.17 to 0.65 mg/L and iron from 0.15 to 4.12 mg/L. Downstream from the deposit the values above the maximum allowed concentrations are recorded for lead in the range from 0.20 to 0.58 mg/L, iron from 0.14 to 4.53 mg/L and copper from 0.02 to 0.12 mg/L. The rest of the parameters have ...
... a; in the system of alternatives. As a measure for multi-criteria evaluation, the PROMETHEE II involves absolute flow: 0; (aj) = 0} (4) — 0; (@)if=L---/J where j is the number of alternative. In the analysis conducted in this paper for the PROMETHEE method, the commercial software Visual PROMETHEE ...
... Recultivation and Sustainable Development of Coal Mining in Kolubara Basin. Therm. Sci. 2010, 14, 759–772. [CrossRef] 2. Stevanović, B.; Knežević, L.; Čikarić, S.; Popov-Ilić, G.; Karaman, G.; Nedović, B.; Todić, D.; Vukasović, V.; Vujošević, M.; Stojanović, B.; et al. Enciklopedija—Životna ...Gordana Milentijević, Blagoje Nedeljković, Milena Lekić, Zoran Nikić, Ivica Ristović, Jelena Đokić. "Application of a Method for Intelligent Multi-Criteria Analysis of the Environmental Impact of Tailing Ponds in Northern Kosovo and Metohija" in Energies, MDPI AG (2016). https://doi.org/10.3390/en9110935
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Дефинисање археолошких објеката на локалитету Кремените њиве применом Ојлерове 3Д деконволуције на магнетометријске податке
... 176016). LITERATURA / REFERENCES Bastani, M., Kero, L., 2004. Test of the analytical signal technique and Euler deconvolution on Fosmark data. P‐04‐283, Swedish Nuclear Fuel and Waste Management Co., Stockholm, Swedish. 51 pp. Eppelbaum, L., 2015. Quantitative Interpretation of magnetic anomal ...
... under complex physical‐geological environments in archaeological prospection, Archaeological Prospection, 23 (2), 255–268. Isles, D. J., Rankin, L. R., 2013. Geological Interpretation of Aeromagnetic Data. The Australian Society of Exploration Geophysicists. 357 pp. Reid, A., Allsopt, J., Granser ...Весна Цветков, Илија Васиљевић, Бранислав Сретеновић, Весна Дамњановић. "Дефинисање археолошких објеката на локалитету Кремените њиве применом Ојлерове 3Д деконволуције на магнетометријске податке" in Књига апстраката 17. Конгрес геолога Србије, Врњачка Бања 17-20. мај, Српско геолошко друштво (2018)
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Industrija 4.0 - koncept prediktivnog održavanja 4.0 (PdM 4.0) u rudarstvu
Četvrtu industrijsku revoluciju – Industriju 4.0 karakteriše upotreba cyber-fizičkih sistema. Da bi se postigla optimalna strategija održavanja (ali i eksploatacije), neophodno je razviti sisteme koji podržavaju napredne inteligentne sisteme održavanja ili tehnologije pametnog održavanja. Iz toga su proizašli postulati Prediktivnog održavanja 4.0 (PdM 4.0) koji definišu veoma blisku budućnost u oblasti održavanja tehničkih sistema pa i rudarske opreme. PdM 4.0 uključuje iskorišćenje snage veštačke inteligencije za stvaranje stalnog uvida u otkrivanje uzroka i anomalija u radu opreme, koje se ...Predrag Jovančić, Vesna Damnjanović, Dragan Ignjatović, Miloš Tanasijević, Stevan Đenadić. "Industrija 4.0 - koncept prediktivnog održavanja 4.0 (PdM 4.0) u rudarstvu" in IX Međunarodna konferencija UGALJ 2019, Zlatibor, Srbija, 23-26. oktobar 2019., Jugoslovenski komitet za površinsku eksploataciju (2019)
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Tracking of the temporal dependency of fading of the human footprint temperature contrast
In certain situations, it is extremely important to determine the exact time “someone” entered or crossed the forbidden zone of a military or strategic installation, a red zone of radioactive, chemical, or biological contamination, a bank or similar structure. Standard security measures include ordinary video surveillance using cameras that operate in the visible range of the electromagnetic spectrum, as well commercial thermal imaging cameras [1, 2]. The paper presents the results of experiments that suggest another possible use of ...Stevan Đenadić, Ljubiša Tomić, Vesna Damnjanović, Darko Vasiljević, Danica Pavlović. "Tracking of the temporal dependency of fading of the human footprint temperature contrast" in VIII International School and Conference on Photonics, Belgrade, Serbia, 23-27 August 2021, Institute of Physics Belgrade (2021)