Претрага
257 items
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Избор методе подземног откопавања на примеру лежишта бакра
Mилош Глигорић (2024)Тема овог завршног рада је избор методе откопавања у подземном руднику бакра. Рад је подељен на четири поглавља. У првом поглављу дат је приказ општих података и геолошких карактеристика ширег подручја и лежишта. Детаљан опис отварања и припреме лежишта за откопавање представљен је у другом поглављу. У трећем поглављу дат је опис све три варијанте изабране методе за запуњавањем откопаног простора, са освртом на количину захваћене руде, трошковима експлоатације као и динамиком откопавања. Четврто поглавље представља нумерички пример где ...... a. IIpeMa ToMe, y pamy he Hajmpe OMrHM npukaa3aHa MeTOJLA 3a onpeljuBabe TexuHa KpHTepHjyMa Koja ce Ha3HBa MPSI (Modified Preference Selection Index) Meroma. HakoH rora OMhe omaMcaHa MerToJa 3a paHrHpaMbc anrepHaTHBa Koja ce Has3HBa MAPA (Magnitude of the Area for the Ranking of Alternatives) ...
... mpuHmama rpynmM OOJeEKTHBHMX MerTOJa. Baaupa ce Ha Omaroj MOJMH(ODHKamunjH TpanHIMOHaJIHcC H IHMPpOKO pacnmpocrpapeHe PSI (Preference Selection Index) MemTome. Ta MMHHHMMAaHHa MOJmMHM(ObMKamHja OJHOCH cc Ha eJMHHHCaM»y je)HOr KOpaKka H3 OpHrHHajHe PSI erojee. Ha raj HauHH, KoOHauHc BpeJHOCTH TeX)MHHa ...Mилош Глигорић . Избор методе подземног откопавања на примеру лежишта бакра, 2024
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Fuzzy stohastički model izbora sistema otvaranja podzemnog rudnika
Saša M. Jovanović (2016-05-16)Investiciono okruženje skopčano sa rudarskom industrijom je veoma svojstveno kada seuporedi sa okruženjima koje susrećemo u tipičnim proizvodnim industrijama. Neke odkarakterisitka rudarstva, koje su često naznačene kao jedinstvene su: visok intenzitetinvesticija, dugi predproizvodni periodi, visok rizik i neobnovljivost resursa.Investiranje u sistem otvaranja rudnika predstavlja dobar primer ireverzibilneinvesticije. Takva investicija zahteva pažljivu analizu, jer nakon njene realizacije ona sene može nadoknaditi bez značajnog gubitka vrednosti. Očigledno je da izbor sistemaotvaranja podzemnog rudnika pripada strateškom planiranju...... Geometric Brownian Motion, to simulate them. A set of potential alternatives is preference-ranked, according to the ascending order of Convex Index. By evaluating the networks spanned from each access point, it can be seen how depth, access point ore reserves and fixed production rate affect ...
... the efficiency of the development system. Key words: mining; development; networks and graphs; fuzzy sets; stochastic processes; convex index, decision support systems Scientific area: MINING Narrow scientific area: UNDERGROUND MINING UDC: 519.816/.87 519.245/ ...
... programiranju [24]. Lin i Chen (1994) pronalaze fuzzy najkraći put u mreži primenom fuzzy linearnog programiranja [27]. Okada (2004) definiše novi index komparacije između suma fuzzy brojeva razmatrajući međusobnu aktivnost fuzzy brojeva i definiše algoritam za određivanje stepena mogućnosti za svaku ...Saša M. Jovanović. "Fuzzy stohastički model izbora sistema otvaranja podzemnog rudnika" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-05-16)
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An arid phase in the Internal Dinarides during the early to middle Miocene: Inferences from Mg-clays in the Pranjani Basin (Serbia)
N. Andrić-Tomašević, V. Simić, O. Mandic, D. Životić, M. Suárez, E. García-Romero. "An arid phase in the Internal Dinarides during the early to middle Miocene: Inferences from Mg-clays in the Pranjani Basin (Serbia)" in Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier BV (2020). https://doi.org/10.1016/j.palaeo.2020.110145
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Digital Library From A Domain Of Criminalistics As A Foundation For A Forensic Text Analysis
U ovom radu predstavljen je model koji omogućava prikupljanje, pripremu, opis metapodataka, upravljanje i eksploataciju, uključujući pretragu punog teksta dokumenata iz domena kriminalistike napisanih na srpskom jeziku. Predloženi pristup primenjuje se na veb portalu koji sakuplja različite tekstove nastale iz časopisa Akademije za kriminalistiku i policijske studije, Krivičnog zakona Srbije, konferencija „Tara“ i „Reiss“, kao i iz nekih doktorskih disertacija vezanih za ovu oblast istraživanje. Nakon obrade teksta, korpus koji sadrži preko 5500 stranica običnog teksta, kreiran je i ...... from the synsets which are connected by the relation of hypernym. Multilingual expansion is implemented using two wordnets and their inter- lingual index. The method differs from the previous only in the possibility of extending the query literals in the other language which can be reached via a sy ...Dalibor Vorkapić, Aleksandra Tomašević, Miljana Mladenović, Ranka Stanković, Nikola Vulović. "Digital Library From A Domain Of Criminalistics As A Foundation For A Forensic Text Analysis" in International Scientific Conference “Archibald Reiss Days” Thematic Conference Proceedings Of International Significance, Belgrade, 7-9 November 2017, Academy Of Criminalistic And Police Studies Belgrade (2017)
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Building learning capacity by blending different sources of knowledge
... representing the sense of the literal string specific to that particular concept. The multilinguality potential of wordnets stems from the interlingual index (ILI), which establishes relations between synsets representing the same concept in different languages (Krstev et al., 2004). Figure 3: ...Ivan Obradović, Ranka Stanković, Olivera Kitanović, Dalibor Vorkapić. "Building learning capacity by blending different sources of knowledge" in International Journal of Learning and Intellectual Capital (2016). https://doi.org/10.1504/IJLIC.2016.075698
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Towards the semantic annotation of SR-ELEXIS corpus: Insights into Multiword Expressions and Named Entities
Овај рад представља активности на развоју корпуса ELEXIS-sr, српском додатку вишејезичном анотираном корпусу ELEXIS-а, који се састоји од семантичких анотација и репозиторија значења речи. ELEXIS је паралелни вишејезични анотирани корпус на десет европских језика, који може да се користи као вишејезички репер за евалуацију европских језика са мање и средње развијеним ресурсима. Фокус овог рада је на вишечланим изразима и именованим ентитетима, њиховом препознавању у скупу реченица ELEXIS-sr и поређењу са анотацијама на другим језицима. Разматрају се први кораци ...Cvetana Krstev, Ranka Stanković, Aleksandra Marković, Teodora Mihajlov. "Towards the semantic annotation of SR-ELEXIS corpus: Insights into Multiword Expressions and Named Entities" in Proceedings of the Joint Workshop on Multiword Expressions and Universal Dependencies (MWE-UD) @ LREC-COLING 2024, Turin, May 25, 2024, ELRA and ICCL (2024)
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Age and microfacies of oceanic Upper Triassic radiolarite components from the Middle Jurassic ophiolitic mélange in the Zlatibor Mountains (Inner Dinarides, Serbia) and their provenance
Hans-Juergen Gawlick, Nevenka Đerić, Sigrid Missoni, Nikita Bragin, Milan Sudar, Divna Jovanović (2017)Neo-Tethys, trench-like basins, synorogenic deposition, evolving thrust belt, Triassic palaeogeography... Planet. Sci. Lett. 60, 351—375. Karamata S. 2006: Thc geological development of the Balkan Peninsula related to the approach, collision and compression of Gondwana and Eurasian units. In: Robertson A.H.F. & Mountrakis D. (Eds.): Tectonic Development ofthe Eastern Medi- terranean Region. Geol ...Hans-Juergen Gawlick, Nevenka Đerić, Sigrid Missoni, Nikita Bragin, Milan Sudar, Divna Jovanović. "Age and microfacies of oceanic Upper Triassic radiolarite components from the Middle Jurassic ophiolitic mélange in the Zlatibor Mountains (Inner Dinarides, Serbia) and their provenance" in Geologica Carpathica (2017)
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Mineral Resources of Serbia: Environmental, Societal and Economic Challenges
... c chemicals belong to a group of secondary metabolites and it is considered that secondary metabolites are precisely those which present an adaptation mechanism of plant species on different ecological factors and enable a survival of species. Some of secondary metabolites of plants, which have ...
... interactions in the biological control of weeds and pests in plant cultivation. Allelopathic compounds belong to the group of secondary metabolites of plants. SECONDARY METABOLITES OF PLANTS For a certain period of time, it is well-known fact that versatile parts of plants are formed by metabolic ...
... carbohydrates, lipids and proteins. Secondary metabolism is a direct continuation of primary metabolic processes and it is closely bond to the catabolism and/or transformation of the sugar molecules, amino acids or fatty acids. The formed compounds are defined as secondary metabolites and have a very ...Vladimir Simić, Rade Jelenković, Dragana Životić. "Mineral Resources of Serbia: Environmental, Societal and Economic Challenges" in Serbia: Current Issues and Challenges in the Areas of Natural Resources, Agriculture and Environment,, Nova Science Publishers, Inc. (2019)
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An Integrated Environment for Management and Exploitation of Linguistic Resources
Ranka Stanković, Ivan Obradović (2009)... pattern outlined by EuroWordNet. Name- ly, synsets related to same (or similar) concepts in different languages were connected via the Interlingual index (ILI), integrating all BalkaNet wordnets into a multilingual lin- guistic data base. This feature also provides for a connection with the ...Ranka Stanković, Ivan Obradović. "An Integrated Environment for Management and Exploitation of Linguistic Resources" in Proceedings of the International Multiconference on Computer Science and Information Technology, Computational Linguistics – Applications Workshop (CLA09), Mrągowo, Poland, October 2009, Piscataway : IEEE (2009)
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Machine Learning and Deep Neural Network-Based Lemmatization and Morphosyntactic Tagging for Serbian
The training of new tagger models for Serbian is primarily motivated by the enhancement of the existing tagset with the grammatical category of a gender. The harmonization of resources that were manually annotated within different projects over a long period of time was an important task, enabled by the development of tools that support partial automation. The supporting tools take into account different taggers and tagsets. This paper focuses on TreeTagger and spaCy taggers, and the annotation schema alignment ...... number of lines equals the number of tokens in a sentence. Each line contains the following ten fields, separated with tabulator character: 1) word index (integer starting from 1 for each new sentence), 2) word form or punctuation symbol, 3) lemma or stem of word form, 4) Universal Part-of-Speech tag ...Ranka Stanković, Branislava Šandrih, Cvetana Krstev, Miloš Utvić, Mihailo Škorić. "Machine Learning and Deep Neural Network-Based Lemmatization and Morphosyntactic Tagging for Serbian" in Proceedings of the 12th Language Resources and Evaluation Conference, May Year: 2020, Marseille, France, European Language Resources Association (2020)
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Palinomorfe sa lokaliteta Gostuška reka (Stara planina)
Ivan Rutović (2024)U radu su prikazani rezultati palinološkog istraživanja permsko-trijaskih sedimenata sa lokaliteta Gostuška reka. Palinološki kompleksi su detaljno analizirani, što je omogućilo morfološku, taksonomsku i paleoekološku identifikaciju palinomorfi. Istraživanje je pokazalo prisustvo velikog broja spora i polena golosemenica, dok je polen skrivenosemenica zastupljen u manjem procentu. Na osnovu paleoekoloških analiza, zaključeno je da je tokom formiranja sedimenata na lokalitetu vladala aridna klima, sa povremenim vlažnim fazama koje su omogućavale razvoj močvarne vegetacije.... Mudelsee, M.; Radaković, M.G.; Radivojević, 4.R.; Schaetzi, R.J.; Basarin, B.; Nikolić, J.; Marković, S.B.; Spalević, P.; 4ntić, 4.; etal., 2024: An Index for Snowmelt- Induced Landslide Prediction for Zavoj Lake, Serbia, str. 4. Milivojević J., 2001: Palinomorfe permsko — trijaskih sedimenata Stare ...Ivan Rutović. Palinomorfe sa lokaliteta Gostuška reka (Stara planina), 2024
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Specifičnosti izgradnje deonice 3 brze saobraćajnice Požarevac-Golubac na organskom tlu
Vojislav Lučić (2024)U ovom završnom radu prikazani su podaci koji se odnose na metode ojačanja terena izgrađenog od slabonosivog organskog tla, kao i njegove geotehničke karakteristike na primeru šireg istražnog prostora, u okolini sela Kumane duž trase treće dionice brze saobraćajnice Požarevac-Golubac. U radu su prvo prikazane osnovne karakteristike i podele organskog tla i treseta, zatim su navedene metode ojačanja tla koje mogu da se koriste na datom istražnom prostoru i na kraju je izvršena analiza i interpretacija rezultata geotehničkih istraživanja ...organsko tlo, treset, metode ojačanja slabonosivog tla, slieganje, konsolidacija i vremenski tok konsolidacije... korišćena u geostatičkim proračunima, se usvaja cu=10 kPa. 26 De pt h [m] SDMT Main Results Material Index Constrained Modulus Undr. Shear Strength Frietion Angle Horizontal Stress Index Shear Wave Velocity 2 | cLAY |syyr| SAND ii o o LEwI o ı || | | | | 2 H| > > > Ll 3 3 3 t 3 ii 3 : ...Vojislav Lučić. Specifičnosti izgradnje deonice 3 brze saobraćajnice Požarevac-Golubac na organskom tlu, 2024
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Методологија интегралне анализе сценарија енергетског развоја
Александар Маџаревић (2019)енергетска безбедност, сценарио развоја, фази логика, сигурност снабдевања, доступност, расположивост, природни гас... t/files/USIndexFinal2PDF.pdf US Chamber of commerce, International Index of Energy Securityм Risk, 2015Ed. Washington DC, 2015. Jewell, J., The IEA model of short-term energy security (MOSES) primary – energy sources and secondary fuels, Paris, International Energy Agency, 2011., доступно на: https://www ...
... Security of Supply”, Final Workshop, Brussels, 2011. US Chamber of commerce, Index of US Energy Security Risk, 2012, Washington DC, 2011. АЛЕКСАНДАР МАЏАРЕВИЋ 175 ЛИТЕРАТУРА Global Energy Institute, INDEX OF U.S. ENERGY SECURITY RISK, 2017, доступно на: https://www.globalenergyinstitute ...
... друштвеног, институционалног и аспекта животне средине. 1 eng. the Shannon–Wiener index - Индекс разноликости је квантитативна мера која одражава колико различитих типова постоји у скупу података (заједница), а истовремено узима у обзир ...Александар Маџаревић. Методологија интегралне анализе сценарија енергетског развоја, Рударско-геолошки факултет, 2019
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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... hemeng.9b04229. Sanchez-Gonzalez J, Macias-Garcia A, Alexandre-Franco MF, Gomez-Serrano V. Electrical conduc- tivity of carbon blacks under compression. Carbon. 2005; 43: 741—747. https://doi.org/10.1016/j. carbon.2004.10.045. Celzard A, Marčchć JF, Payot F, Furdin G. Electrical conductivity ...
... was separated from the solution by filtration using 0.45 um nitrocellulose fil- ters. The absorbance at 250 nm (A250) was measured as a qualitative index of dissolved aro- matic organic compounds in the filtered extracts after separation and addition of HCI to achieve a pH < 2 [57]. If needed, samples ...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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Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains
carbon and oxygen isotopes, radiolarians, calcareous dinoflagellates, radiolarites, Krížna Nappe, West ern Carpathians, Tethys... cyst association, with Stomiosphaera moluccana Wanner accompanied by Car- pistomiosphaera borzai (Nagy) (Figs 4, 7, 13C). The latter cyst is the index marker of the Borzai Zone, which dates the topmost part of the Late Kimmeridgian (Lakova ef al., 18 R.JACH E7AL. Fig. 12. Radiolarians from ...
... stratigraphy of the lower part of the Middle Juras- sic deposits in the Western Tatra Mountains is poorly de- fined, which results from the scarcity of index fossils, in- completeness of the sections, as well as the common occur- rence of condensations and hiatuses (Jach and Starzec, 2003; Gradzinski ...
... Fig. 3). Sedimentary features indirectly confirm the above view. The upper part of the underlying red nodular limestones, above the location of index ammonites, displays several cha- racteristic features of condensed deposits, such as a concen- tration of microborings in bioclasts as well as the ...Renata Jach, Nevenka Đerić, Špela Goričan, Daniela Reháková. "Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains" in Annales Societatis Geologorum Poloniae (2014)
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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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Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy
Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag (2014)... basin with complex structural features (Dudko et al. 1992), which include multiple thrust faults (Litćr and Veszprćm) generated by regional compression during the Eoalpine Orogeny (Late Cenomanian to Early Senonian). During the Neoalpine Orogeny (Miocene), the area was subsided along dip faults ...Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag. "Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy" in Rivista Italiana di Paleontologia e Stratigrafia (2014)
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Open Educational Resources in Serbia
... al disorders; Secondary schools: a) Gymnasiums (general and specialized), b) Secondary vocational schools (SVS), c) Mixed or combined schools (gymnasiums and vocational or art schools), d) Art schools, e) Secondary schools for the adult education and f) Secondary schools for students ...
... of Serbia and represents infrastructural support for the maintenance of programming competitions in secondary schools. Now the common infrastructure2 basis is used for primary and secondary school competitions, as well as for BubbleCup. OER Serbia OER Serbia is the portal of the Open Education ...
... Gazette of RS, No. 68/2015), comprises the following levels: 1.Pre-school education and upbringing; 2.Primary education and upbringing; 3.Secondary education; 4.Tertiary education. These levels of education are carried out in: Preschool institutions (up to 7 years of age); Primary schools: ...Ivan Obradović, Ranka Stanković, Marija Blagojević, Danijela Milošević. "Open Educational Resources in Serbia" in Current State of Open Educational Resources in the “Belt and Road” Countries, Springer Singapore (2020). https://doi.org/10.1007/978-981-15-3040-1_10
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Stratigraphy and microfossils (radiolarians and planktonic foraminifers) of the Upper Cretaceous (upper Santonian–lower Campanian) Struganik limestone (Western Serbia)
Liubov G. Bragina, Nikita Yu. Bragin, Ludmila F. Kopayevich, Nevenka Đerić, Nataša Gerzina Spajić (2019)Liubov G. Bragina, Nikita Yu. Bragin, Ludmila F. Kopayevich, Nevenka Đerić, Nataša Gerzina Spajić. "Stratigraphy and microfossils (radiolarians and planktonic foraminifers) of the Upper Cretaceous (upper Santonian–lower Campanian) Struganik limestone (Western Serbia)" in Palaeoworld, Elsevier BV (2019). https://doi.org/10.1016/j.palwor.2019.05.001
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Low-temperature phase transition and magnetic properties of K3YbSi2O7
Predrag Dabić, Volker Kahlenberg, Biljana Krüger, Marko Rodić, Sabina Kovač, Jovan Blanuša, Zvonko Jagličić, Ljiljana Karanović, Václav Petříček, Aleksandar Kremenović (2021)alkalni silikati elemenata retkih zemalja, fazni prelazi, magnetne karakteristike, razdvajanje kristalnog polja, silikati lantanica... a crystallographic group– subgroup relationship: the low-temperature-induced transi- tion results in a maximal translationengleiche subgroup of index three. The relation between the basis vectors of the crystal structures belonging to space groups G = P63/mmc and H = Cmcm (subgroup) can be described ...
... in a crystallographic group— subgroup relationship: the low-temperature-induced transi- tion results in a maximal translationengleiche subgroup of index three. The relation between the basis vectors of the crystal structures belonging to space groups G = P63/mmc and H = Cmcm (subgroup) can be described ...Predrag Dabić, Volker Kahlenberg, Biljana Krüger, Marko Rodić, Sabina Kovač, Jovan Blanuša, Zvonko Jagličić, Ljiljana Karanović, Václav Petříček, Aleksandar Kremenović. "Low-temperature phase transition and magnetic properties of K3YbSi2O7" in Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials, International Union of Crystallography (IUCr) (2021). https://doi.org/10.1107/S2052520621006077