Претрага
425 items
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Long-term planning methodology for improving wood biomass utilization
The insufficiently developed forest management system is often followed by undeveloped forest resources supply chain and insufficient institutional support. These cause inefficient usage of fuel-wood as well as huge amounts of unused forest residues. In order to achieve optimal and long-term sustainable utilisation of biomass, an original methodology based on the interaction of mathematical optimization and backcasting approach has been developed. Mathematical optimization is used for both generation and consideration of techno-economic parameters of the forest biomass supply chain. ...Vladimir Vukašinović, Dušan Gordić, Marija Živković, Davor Koncalović, Dubravka Živković. "Long-term planning methodology for improving wood biomass utilization" in Energy, Elsevier BV (2019). https://doi.org/10.1016/j.energy.2019.03.105
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OER obrazovni sadržaji kao spona između akademskog i preduzetničkog znanja
... of Learning, 2011. [2] C.J. Bonk. The world is open: How web technology is revolutionizing education,Wiley, 2009. [3] D. Millard, K. Borthwhick, Y. Howard, P. McSweeny, C. Hargood. The HumBox:Changing educational practice around a learning resource repository. In: Computers & Education 69, 2013 ...
... Chronicle of Higher Education, 59(6), 2012, B10–11. [14] J. Rice. What I learned in MOOC. College Composition and Communication, 64(4), 2013, 695–703. [15] Y. Belanger, J. Thornton. Bioelectricity: quantitative approach. Retrieved on May 7 from http://dukespace.lib.duke.edu/dspace/bitstream/handle/10161/ ...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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Хидрогеолошки услови формирања угљокиселих минералних вода Србије
Goran H. Marinković (2014-06-17)Докторском дисертацијом разматране су хидрогеолошке структуре угљокиселихминералних вода литосфере Србије. При истраживањима узети су у обзир:резултати испитивања старости, порекла и физичко – хемијских карактеристикаугљокиселих вода, геотемпературни услови и геотектонска грађа литосфере,резултати изотопских испитивања на δ13С у карбонатима хидротермалнихлежишта, резултати истраживања минималних температура трансформацијекарбоната и структурно - хидрогеолошки услови у областима дренирањаугљокиселих вода.Резултати показују да је угљеник угљокиселих вода пореклом из карбонатахидротермалне фазе младих магматских процеса, а да су матични супстратиовог елемента карбонати мезозојских и палеозојских седиментних иметаморфних стена. Угљендиоксид ...литосфера Србије, угљокиселе воде, генеза, супстрати, рејони,хидрогеолошке структуре, дубина залегања, геолошки услови, типови,потенцијал.... KaTanory uv y ny6nuKkalujama YHuBepsuteta y Beorpapy. Notnuc AoKTOpaHga Y Beorpagy, jaHyap, 2014.roguHe NMpunor 3. U3jaBa o Kopuwhetby Osnawhyjem YHusepsutetcky 6uOnvoteky ,CBetosap Mapkosuh“ ga y Qurutanun penosutopyjym YHusepsuteta y Beorpagy yHece mojy AOKTOpcky AucepTauyjy nog HaCnOBOM: ...
... geno. Quceptauyjy ca cBuM npuno3suma npegao/na cam y eneKTpOHCKOM cbopmatTy norogHOM 3a TpajHO apxuBupatbe. Mojy gokropcky quceptauvjy noxpatbery y (urutanHu penosuTopujym YHuBepsuTeta y Beorpagy mory fa Kopucte cBu Koju nowTyjy ogqpeq6e cagpxKaHe y ona6paHom Tuny nuueHue Kpeatusre 3ajequuue (Creative ...
... Auceptayyja y WenuHy Hu y GenoByma Hyje Guna npegnoxKeHa 3a goOvjate 6Ouno koje Avnnome npema cTygvjcKum nporpamuma ~Apyrux BUCOKOLUKONCKUX YCTAaHOBa, e acy pesyntatu KOpeKTHO HaBegeHy e ga HuCaM Kpwuo/na ayTopcKa npaBa u KOpMCTMO MHTeNeKTyanHy CBOjMHy Apyrux nuya. Notnuc BoKTopanyza Y Beorpagy, __jaHyap ...Goran H. Marinković. "Хидрогеолошки услови формирања угљокиселих минералних вода Србије" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2014-06-17)
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Application of stochastic models for mine planning and coal quality control
... � � � � � � 1 2 1 1 2 2 s_ stdev s_ mean ss_ sdlog s_ stdev s_ mean rlnorm ss_ meanlog, ss_ sdlog 2 2 1 � � � � � �; ( , )y The steps involved in the study can be summarized as: (1) Build a consistent geological database using drill holes and use this data to develop MinexTM ...
... Vol. 18, No. 4, pp. 1361-1372 2 ss_ mean = 0.465; ss_stdev =0351; ss_ meanlog = log(s_ mean) — ; lo + — s_ mean? 2 ss_sdlog = /log} 1+ S_stdey” ; y=rlnorm(l,ss_meanlog, ss_sdlog) s_ mean? The steps involved in the study can be summarized as: (1) Build a consistent geological database using drill ...
... State-of-the-Art in Coal Blending for Power Generation, Final Report – Project 3.16., Coordinaing Research Council, Algharetta, Geo., USA, 2001 [8] Kim, Y. C., et al., Development of Emission Control Strategies Using Conditionally Simulated Coal De- posits, University of Arizona, Tucson, Ariz., USA, Proprietary ...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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Spatial assessment of the areas sensitive to degradation in the rural area of the municipality Čukarica
Nature and Landscape Conservation, Soil Science, Agronomy and Crop Science, Water Science and TechnologyNatalija Momirović, Ratko Kadović, Veljko Perović, Miloš Marjanović, Aleksandar Baumgertel. "Spatial assessment of the areas sensitive to degradation in the rural area of the municipality Čukarica" in International Soil and Water Conservation Research, Elsevier BV (2019). https://doi.org/10.1016/j.iswcr.2018.12.004
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Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)
Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović. "Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)" in Carbonates and Evaporites, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s13146-019-00548-6
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Availability as a dimension of energy security in the Republic of Serbia
Boban Pavlović, Dejan Ivezić (2016)There is a range of modern approaches and models in literature for the evaluation and determination of energy security, which are based on different parameters and indicators. For most of them, a common characteristic is emphasizing the avail ability of energy, as an important dimension for ensuring energy security. In this paper, concise overview of Serbian energy sectors is given and appropriate energy indicators are defined and determined. Selected indicators provide insight into the main components that characterize availability ...... improve availability, the main activities in Serbian energy sector should be directed to: y Improvement of energy efficiency, primarily in electricity production and distribution y Increase the use of RES y Diversification of energy sources used in energy transformation, as well diversification of ...Boban Pavlović, Dejan Ivezić. "Availability as a dimension of energy security in the Republic of Serbia" in Thermal Science, National Library of Serbia (2016). https://doi.org/10.2298/TSCI160923303P
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Integrative GHG Assessment in Oil and Gas Industry
Reducing greenhouse gas emissions is one of the main targets of national strategies in European countries. As a main contributor to emissions, the energy sector is recognized as the most promising to apply measures and actions aimed to decrease GHG emissions. The Oil and Gas industry as a significant contributor to global greenhouse gas emissions is facing a growing need for estimating, mitigating, and reducing the impact of their operations on the atmosphere to stay competitive in a newly ...... flaring can be most accurately calculated by using the stoichiometric equation [8]: C.H,O. +[x+ _ Z)-oz » xCO, +[y]·H20 j 4 2 2 (6) where: X – stoichiometric cocfficient for carbon; y – stoichiometric cocefficicnt for hydrogen; z - stoichiometric coefficicnt for oxygen. The carbon content of ...
... combustion efficiency. Is manufacturer provided Yes - . combustion efficiency Apply manufaclurer.prowded combustion H efficiency. available? Y Use stoichiometrically calculated emission _ eS | factor, adjusted for combustion efficiency to Is flare gas composition - icci ; measurement available ...Aleksandar Mirković, Marija Živković, Stevan Đenadić, Darja Lubarda, Chinedu Anyanwa. "Integrative GHG Assessment in Oil and Gas Industry" in Energija, ekonomija, ekologija (2023). https://doi.org/10.46793/EEE23-1.51M
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Дефинисање археолошких објеката на локалитету Кремените њиве применом Ојлерове 3Д деконволуције на магнетометријске податке
... mrežom (gridom) podataka, koristeći Ojlerovu relaciju homogeniteta koja povezuje polje (magnetno ili gravitaciono) i njegove gradijente po pravcima (x, y i z) sa pozicijom izvora uz pomoć stepena homoge‐ niteta (N). Stepen homogeniteta predstavlja meru opadanja intenziteta magnetskog polja sa rastojanjem ...
... he grid of data, using Euler's homogeneity relation that links the field (magnetic or gravitational) and its gradients along the directions (x, y and z) with the source position by the degree of homogeneity (N). The degree of homo‐ geneity is the measure of the decrease of the intensity of the ...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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Heavy metals in lignite and soil of Kostolac-Kovin coal basin, eastern Serbia - comparative analysis with selected cities in Serbia, region, Europe and world
Bogoljub Vučković, Bojan Dimitrijević (2023)The Kostolac-Kovin coal basin with an area of 320 km2, with 5 separate layers of coal and with a total of about 5.7 Bt of geological resources and reserves represents an exceptional potential for coal production in Serbia. The coal resources listed in this way are not fully exploitable, but they represent potential for consideration. In this paper, we deal with the geochemical characteristics of coal seams and perform a comparative analysis of coal affectation on the environment. With ...... statistical methods. CATENA. 2012; 98:73— 78. doi: 10.1016/j.catena.2012.06.007. 7. Cheng Y., Paltseva A., Li 1., Morin T., Huot H., Egendorf S., Su Z., Yolanda R., Singh K., Lee L., Grinstein M., Liu Y., Green K., Wai W., Wazed B., Shaw R., 2015 – Trace Metal Contamination in New Vork City Garden ...Bogoljub Vučković, Bojan Dimitrijević. "Heavy metals in lignite and soil of Kostolac-Kovin coal basin, eastern Serbia - comparative analysis with selected cities in Serbia, region, Europe and world" in 9th International Conference Mining and Environmental Protection, 24–27. May 2023, Sokobanja, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet (2023)
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Prvi nalazi repatih vodozemaca (Urodela) u pleistocenskoj pećinskoj fauni Srbije; još jedna kockica u slagalici
Fosilna fauna pleistocenskih pećina odslikava sastav faune njihove okoline. Najčešće se u njima naleze ostaci krupnih sisara ledenog doba koji su je koristili kao stanište. Uz njih česti su i ostaci drugih sitnih kičmenjaka kao što su sitni sisari, ribe, vodozemci, gmizavci i ptice. Ostaci sitnih kičmenjaka u većini slučajeva u pećinu dospevaju kao plen grabljivica (ptice i sisari) ali je manji broj njih pećinu koristio i kao sklonište ili stanište. U proučavanje fluktuacija pleistocenske klime sve češće se ...... (2010): A review of tailed amphibian remains from the Late Cenozoic deposits of the East European Plain. Rwss. J. Herpetol., 17, 59-66. 5. Ratnikov, V. Y., & Blain, H. A., (2018): Holocene amphibians and reptiles from Voroncha (Belarus): Comparative osteology, paleo-pathology and paleobiogeography. Hisforica/ ...
... (2010): A review of tailed amphibian remains from the Late Cenozoic deposits of the East European Plain. Rwss. J. Herpetol., 17, 59-66. 5. Ratnikov, V. Y., & Blain, H. A., (2018): Holocene amphibians and reptiles from Voroncha (Belarus): Comparative osteology, paleo-pathology and paleobiogeography. Hisforica/ ...Dragana Đurić, Katarina Bogićević, Draženko Nenadić, Mihajlo Jovanović, Aleksandra Savković. "Prvi nalazi repatih vodozemaca (Urodela) u pleistocenskoj pećinskoj fauni Srbije; još jedna kockica u slagalici" in Zbornik sažetaka III Kongresa geologa Bosne i Hercegovine sa međunarodnim učešćem. Neum, 21.-23. septembar/rujan 2023, Ilidža : Udruženje geologa Bosne i Hercegovine (2023)
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Fuzzy Model for Risk Assessment of Machinery Failures
The main goal of this research was the development of an algorithm for the implementation of negative risk parameters in a synthesis model for a risk level assessment for a specific machine used in the mining industry. Fuzzy sets and fuzzy logic theory, in combination with statistical methods, were applied to analyze the time picture state of the observed machine. Fuzzy logic is presented through fuzzy proposition and a fuzzy composition module. Using these tools, the symmetric position of the ...... inference system for pipeline risk assessment. J. Loss Prev. Process Ind. 2013, 26, 197–208. [CrossRef] Symmetry 2020, 12, 525 26 of 26 14. Chang, Y.; Wu, Y.; Chen, G.; Ye, J.; Chen, B.; Xu, L.; Zhou, J.; Yin, Z.; Ren, K. Comprehensive risk assessment of deepwater drilling riser using fuzzy Petri net ...
... , Ziemba, W.T., Eds.; World Scientific Publishing Co. Pte. Ltd.: Singapore, 2013; Volume 4, pp. 99–127. [CrossRef] 24. Wang, W.; Liu, X.; Qin, Y.; Fu, Y. A risk evaluation and prioritization method for FMEA with prospect theory and Choquet integral. Saf. Sci. 2018, 110, 152–163. [CrossRef] 25. Vamvakas ...
... and downtime due to failures in the subsystem “hydraulics”. Subsystem Failure of Element Number of Failures Time to Failure (h) Time to Repair (h) H y d ra u li cs Leakage of oil 13 24, 85, 97, 131, 198, 247, 287, 300, 366, 530, 610, 1136, 1347 0.5, 0.5, 0.6, 0.6, 0.8, 0.9, 1, 1, 1.1, 1.2, 1.3 ...Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković. "Fuzzy Model for Risk Assessment of Machinery Failures" in Symmetry, MDPI AG (2020). https://doi.org/10.3390/sym12040525
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Hidrogeohemijska valorizacija esencijalnih mikroelemenata mineralnih voda Srbije
Jana S. Stojković (2013-09-25)Mineralne vode još od davnina privlače pažnju ljudi i to kako u pogledu istraživanja iproučavanja, tako i u pogledu njihovog iskorišćavanja. Naročito je važno poznavanjesadržaja mikroelemenata u njima, jer su to komponente njihovog hemijskog sastavakoje ih odvajaju od tzv. „običnih“ malomineralizovanih voda.U ovom radu proučavani su odabrani esencijalni mikroelementi (fluor, bor, litijum,kalijum, stroncijum i silicijum), u mineralnim vodama Srbije, pri čemu je analiziranopreko 130 uzoraka mineralnih voda iz različitih geoloških sredina, to jest hidrogeološkihrejona. Cilj ovog istraživanja bio je ...esencijalni mikroelementi, faktori migracije, zakonomernosti rasprostranjenja, hidrogeohemijski procesi, multivarijantna statistička analiza, mineralne vode Srbije... Karanory n y ny6nrraqrjaua YHneep3nrera y Seorpagy. llornnc AoKropaHAa 0 .Jl tr..) |V Seorpagy, 2a/3, -f, O,i'i'oo,ltf flpnnor 3. lA$aBa o Kopr4urhelby OenauhyjeM VHneepsnrercKy 6n6nnorery ,,Csero3ap Mapxoenh" Aa y !'urwtanuvt peno3uropnjyvr Ynrsepsttrera y Seorpagy yHece Mojy AoKropcKy Ancepraqurjy ...
... ,Qncepraqiljy ca cBvrM npnno3ilMa npegaolna caM y eneKrpoHcKoM Sopvrary noroAHoM sa rpajno apxnBnpaFbe. Mojy AoKropcKy Ahcepraqnjy noxpaFbeHy y flnrwranHh penosnroprjyNn YHneep3rrera y SeorpaAy Mory Aa Kopr4cre can rojn nouryjy ogpeg6e caApxaHe y o,qa6paHoM rnny nnLleHqe Kpearrane eajegHilLle (Creative ...
... Ancepraqnja y LlenrHV Hn y AenoBuua xrje 6una npeAnoxeHa 3a 4o6ujaue 6nno roje AnnnoMe npeMa crygnjcrnru nporpaMhMa Apyrnx Bt4 COKOIIj KOnCKnX yCTa H O Ba, Aa cy pe3ynrarn KopeKTHo HaBeAeHn vl Aa HncaM xpurno/na ayropcKa npaBa n Kopr4crr4o r4HTeneKTyanHy caojnny Apyrnx nnLla. llornnc AoKropaHga Y SeorpaAy ...Jana S. Stojković. "Hidrogeohemijska valorizacija esencijalnih mikroelemenata mineralnih voda Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-09-25)
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Ontološki model upravljanja rizikom u rudarstvu
Olivera Kitanović (2021)Rudarska proizvodnja obuhvata kompleksne tehnološke sisteme, što nameće potrebu za uspostavljanjem i unapređivanjem sistema upravljanja rizikom. Heterogenost i obim podataka neophodnih za upravljanje rizikom zahtevaju sistem koji ih na fleksibilan način integriše i omogućava njihovo optimalno korišćenje. Osnovni cilj ove disertacije je razvoj ontologije za domen rudarstva i na njoj zasnovanog modela za upravljanje rizikom. Njegova realizacija podrazumeva i implementaciju algoritama ekstrakcije informacija za popunjavanje ontologije, kao i odgovarajuće softversko rešenje. Razvoj modela obuhvata i značajno proširenje rudarskog korpusa, kao ...rudarstvo, rizik, upravljanje rizikom, procena rizika, ontologija, semantička mreža, ekstrakcija informacija, upravljanje znanjem, računarska lingvistika... (example|class|kind|...) of Y X koji je (primer|klasa|vrsta|...) Y X (and|or) (any|some) other Y X (i|ili) (bilo koji|neki) drugi Y X which is called Y X koji se naziva Y X is JJS (most)? Y X je superlativ Y X a special case of Y X poseban slučaj Y X is an Y that X je Y koji X is a !(me ...
... (member|part|given) Y X je !(član|deo|dat kao) Y !(features|properties) Y such as X1, X2,... !(atributi|svojstva) Y kao što su X1, X2, ... (Unlike|like) (most|all|any|other) Y, X (za razliku od|kao) (najviše|svih|bilo kog|drugog) Y, X Y including X1, X2, . . Y uključujući X1, X2, . . Primer ...
... Coal Mines.” Journal of Sustainable Mining 17 (4): 175–83. https://doi.org/10.1016/j.jsm.2018.07.005. Tserng, H. Ping, Samuel Y. L. Yin, R. J. Dzeng, B. Wou, M. D. Tsai, and W. Y. Chen. 2009. “A Study of Ontology-Based Risk Management Framework of Construction Projects through Project Life Cycle.” Automation ...Olivera Kitanović. Ontološki model upravljanja rizikom u rudarstvu, Beograd : [O. Kitanović], 2021
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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 ...... 056 Biomass 0.062 Fig. 5. Intersection point D (Chang, 1996). The degree of possibility of M1 ≥ M2 is defined as: V (M1 ≥ M2) = sup x≥y [min (µM1 (x) , µM2 (y))] (6) Since M1 and M2 are convex fuzzy numbers then the following rules are applied: V (M1 ≥ M2) = 1 iff m1 ≥ m2 (7) V (M2 ≥ M1) = hgt(M1 ...
... Gusmão, A., 2020. Impact of renewable resource quality on security of supply with high shares of renewable energies. Appl Energy 277 (2020), 115567. Liu, Y., Eckert, C.M., Earl, C., 2020. A review of fuzzy AHP methods for decision-making with subjective judgements. Expert Syst Appl 161 (2020), 113738. Lund ...
... eria evaluation of renewable energy alternatives for electricity generation in a residential building. Renew Sustain Energy Rev 110, 101–117. Shen, Y., Lin, G., Li, K., Yuan, B., 2010. An assessment of exploiting renewable energy sources with concerns of policy and technology. Energy Policy 38 (8), ...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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A Multilingual Evaluation Dataset for Monolingual Word Sense Alignment
Sina Ahmadi, John P McCrae, Sanni Nimb, Fahad Khan, Monica Monachini, Bolette S Pedersen, Thierry Declerck, Tanja Wissik, Andrea Bellandi, Irene Pisani, [...] Ranka Stanković and others (2020)Aligning senses across resources and languages is a challenging task with beneficial applications in the field of natural language processing and electronic lexicography. In this paper, we describe our efforts in manually aligning monolingual dictionaries. The alignment is carried out at sense-level for various resources in 15 languages. Moreover, senses are annotated with possible semantic relationships such as broadness, narrowness, relatedness, and equivalence. In comparison to previous datasets for this task, this dataset covers a wide range of languages ...... Number of senses Fr eq ue nc y 1 5 10 50 100 500 1 2 3 4 5 >5 Basque Bulgarian Danish Dutch English (KD) English (NUIG) Estonian German Hungarian Irish Italian Serbian Slovenian (JSI) Slovenian (ISJFR) Spanish Portuguese Russian Number of senses Fr eq ue nc y 1 5 10 50 100 500 1 2 ...
... and Obradović, I. (2004). Using textual and lexical resources in developing Serbian Wordnet. SCIENCE AND TECHNOLOGY, 7(1- 2):147–161. Kwong, O. Y. (1998). Aligning WordNet with additional lexical resources. Usage of WordNet in Natural Lan- guage Processing Systems. Lenci, A., Bel, N., Busa, F ...
... (LDK 2017), Galway, Ireland, June 18, 2017, volume 1899 of CEUR Workshop Proceedings, pages 152–163. CEUR-WS.org. Ozhegov, S. I. and Shvedova, N. Y. (1992). Explanatory Dictionary of the Russian Language. Az, Moscow. Palmer, M. (2009). SemLink: Linking PropBank, VerbNet and FrameNet. In Proceedings ...Sina Ahmadi, John P McCrae, Sanni Nimb, Fahad Khan, Monica Monachini, Bolette S Pedersen, Thierry Declerck, Tanja Wissik, Andrea Bellandi, Irene Pisani, [...] Ranka Stanković and others . "A Multilingual Evaluation Dataset for Monolingual Word Sense Alignment" in Proceedings of the 12th Conference on Language Resources and Evaluation (LREC 2020), Marseille, European Language Resources Association (ELRA) (2020)
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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... односи концентрација у цирконима, и то: 10,000*(Eu/Eun)/Y>1, (Ce/Nd)/Y>0,01 и Dy/Yb <0,3. Еуропијумова аномалија у свим проучаваним узорцима из хидротермалног система Чукару Пеки има вредности изнад 0,3 (слика 14), а однос 10.000*(Eu/Eun)/Y у свим анализираним узорцима има вредности више од 1 (слика ...
... андезита је такође релативно уједначен, са изузетком 3 узорка Доњих андезита који су осиромашени тешким ретким земљама. Дијаграми La/Yb vs Yb и Sr/Y vs Y (слика 14А и 14В) се генерално користе за раздвајање нормалних магми остврских лукова од магми са адакитским особинама (Defant & Drummond, 1990; ...
... Слика 14: Садржаји елемената добијени bulk-rock анализом, приказани на Sr/Y vs Y, La/Yb vs Yb, Dy/Yb vs SiO2 и Ni vs Sc дијаграмима. Вредности за адаките и нормалне стене острвских лукова су из Richards & Kerrich (2007). Путање ...Милош Велојић. Генеза хидротермалног Cu-Au система Чукару Пеки (Источна Србија), Београд : [М. Велојић], 2021
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Infotheca (Q25460443) in Wikidata
Ranka Stanković, Lazar Davidović (2021)Vikipodaci su baza znanja Zadužbine Vikimedija koja predstavlja zajednički izvor različitih vrsta podataka koje koriste ne samo drugi Vikipedijini projekti, već sve više i brojne aplikacije semantičkog veba. U ovom radu ćemo prezentovati primer integracije Vikipodataka sa digitalnim bibliotekama i eksternim sistemima, kao i mogućnost ubrzanja pripreme i unosa podataka na primeru radova iz časopisa za digitalnu humanistiku Infoteka.... to an item can be, for example: hair colour (P1884) for people, 16. In mathematics, if an ordered pair (x, y) is the relation ρ then the element x is has established a relation to the element y and it is written as a triple: xρy. 90 Infotheca Vol. 21, No. 1, September 2021 Professional paper The ...Ranka Stanković, Lazar Davidović. "Infotheca (Q25460443) in Wikidata" in Infotheca, Faculty of Philology, University of Belgrade (2021). https://doi.org/10.18485/infotheca.2021.21.1.5
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An Efficient Class of Iterative Root-Finding Methods with Applications
Dejan Ćebić, Nebojša Ralević (2021)Dejan Ćebić, Nebojša Ralević. "An Efficient Class of Iterative Root-Finding Methods with Applications" in 2021 IEEE 19th International Symposium on Intelligent Systems and Informatics (SISY), IEEE (2021). https://doi.org/10.1109/SISY52375.2021.9582495
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GNSS Time Series as a Tool for Seismic Activity Analysis Related to Infrastructure Utilities
Sanja Tucikešić, Ankica Milinković, Branko Božić, Ivana Vasiljević, Mladen Slijepčević . "GNSS Time Series as a Tool for Seismic Activity Analysis Related to Infrastructure Utilities" in Contributions to International Conferences on Engineering Surveying. Springer Proceedings in Earth and Environmental Sciences, Dubrovnik, Croatia, October 22-23, 2020, Springer, Cham (2021). https://doi.org/10.1007/978-3-030-51953-7_21