Претрага

Упит dcterms_creator_txt:Yu Wang

165 items

  • Potassium-rich magmatism from a phlogopite-free source

    Yu Wang, Stephen F. Foley, Dejan Prelević (2017)

  • Constraints on the sources of post-collisional K-rich magmatism: The roles of continental clastic sediments and terrigenous blueschists

    Wang Yu, Prelević Dejan, Buhre Stephan, Foley Stephen (2016)

  • Sensitivity analysis of rock mass parameters estimate influence on decline support design using NATM

    Slavko Torbica, Veljko Lapčević, Wang Gang, Nemanja Đokić, Miodrag Duranović (2019)
    Rock mass, Tunneling, NATM, GSI, Stress, Cukaru Peki, Bor

  • 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 (2023)
    železnica, prekogranični teretni saobraćaj, ARIMA, LSTM, SSA

  • Structure and provenance of Late Cretaceous - Miocene sediments located near the NE Dinarides margin: inferences from kinematics of orogenic building and subsequent extensional collapse

    Stojadinovic Uroš, Matenco Liviu, Andriessen Paul, Toljić Marinko, Rundić Ljupko and Ducea Mihai (2017)

  • Modelling of coal seam of the deposit Đurđevik (BIH) by means of 2D reflective seismic

    Arsenović Siniša, Urošević Milovan, Sretenović Branislav, Cvetkov Vesna, Životić Dragana (2016)

  • Preliminary regional landslide susceptibility assessment using limited data

    Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska (2019)
    In this paper a heuristic approach for preliminary regional landslide susceptibility assessment using limited amount of data is presented. It is called arbitrary polynomial method and takes into account 5 landslide conditioning parameters: lithology, slope inclination, average annual rainfall, land use and maximum expected seismic intensity. According to the method, in the first stage, a gradation is performed for each of the carefully selected conditioning parameters by assigning so called rating points to the grid cells on which the ...
    klizišta, podložnost
    ... decision tree, weights of evidence and artificial neural network.– Geosciences Jour- nal, 20/1, 117–136. doi: 10.1007/s12303-015-0026-1 WANG, Q., WANG, D., HUANG, Y., WANG, Z., ZHANG, L., GUO, Q., CHEN, W., CHEN, W. & SANG, M. (2015): Landslide Susceptibility Mapping Based on Se- lected Optimal Combination ...
    ... parameters. These studies have been performed on both local and regional scales (e.g. WANG et al., 2015; ERENER & DÜZGÜN, 2010; ILAN- LOO, 2011; CHALKIAS et al., 2014; HE & BEIGHLEY, 2008; SHIBIAO et al. 2013; WANG et al. 2015; PAMELA et al. 2018; SHAHABI & HASHIM, 2015, UMAR et al., 2014). There are ...
    ... 02.005 WANG, Q., LI, W., CHEN, W. & BAI, H. (2015): GIS-based assessment of landslide susceptibility using certainty factor and index of entropy models for the Qianyang County of Baoji city, China.– Journal of Earth System Science, 124/7, 1399–1415. doi: 10.1007/s12040-015-0624-3. WANG, L.J., GUO ...

  • A fuzzy-based decision support model for effectiveness evaluation - a case study of examination of bulldozers

    Miloš Tanasijević, Predrag Jovančić, Dejan Ivezić, Uglješa Bugarić, Radiša Đurić (2019)
    Effectiveness evaluation is one of the basic components of engineering asset management and maintenance engineering in general. Effectiveness is an overall concept representing a measurement of quality of service level for the analyzed engineering system. This concept contains a series of partial indicators relating to time in operation and time for maintenance activities, as well as functional properties of the system. This article describes the analysis and structuring of partial indicators, as well as the development of a model ...
    Efikasnost, Fazi zaključivanje, Prikupljanje podataka, Buldozer

  • Novi model za postizanje optimalne proizvodnje na naftnom polju Amal

    Elnori Elmabrouk Ali Elhaddad (2015-04-16)
    Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...
    nafta, proizvodnja, optimizacija, Amal, Libija
    ... filteru određuje se na bazi izabrane veličine gravela primenom izraza: λ=7/6·Dgravela (Yildiz i Langlinais, 1991; Onyekonwu i Okonkwo, 1997; Wang i dr, 2000; Wang i dr, 2011). Na osnovu urađene granulometrijske analize izabran je odgovarajući gravel i prikazan na slici 5.8 (Guo i dr, 2012; Hallibarton ...
    ... Helm, London, 338. Wang X., Qu Q., Javora P., Pearcy R., (2006) New Trend in Oilfield Flow Assurance Management: A Review of Thermal Insulating Fluids, International Oil & Gas Conference and Exhibition, 5-7 December 2006, Beijing, China, Society of Petroleum Engineers. Wang S.L., Flamberg A., ...
    ... depressant, Hydrocarbon Processing, 78,2. Wang L.H., Deng J.G, Zhou J.L., Liu S.J., Li P., Zhao W.L., Liao J.H., (2011) A physical simulation experiment on sanding in weakly consolidate dsandstone gas reservoirs. Acta Petrol. Sin.32 (6), 1007–1011. Wang Z.G., Li A.F., (2000) .Experimental study ...

  • Novi model za postizanje optimalne proizvodnje na naftnom polju Amal

    Elnori Elmabrouk Ali Elhaddad (2015-04-16)
    Doktorskom disertacijom analizirani su i proučavani problemi proizvodnje nafte iprimenjene metode za njihovo rešavanje na naftnom polju Amal. Ukratko jeprikazana proizvodnje nafte u Libiji, njene karakteristike i rezerve, da bi se videoznačaj ovog naftnog polja.Utvrđeno je da su na naftnom polju Amal ključni problemi koji prate procesproizvodnje taloženje parafina, pojava slojnog peska, neefikasan rad gasliftsistema, neefikasna desalinizacija nafte i ekološki problemi. Proizvodniproblemi, pojedinačno i više njih zajedno, na nekim bušotinama uzrokovali susmanjenje proizvodnje nafte od 40 do 75%. Zbog ...
    nafta, proizvodnja, optimizacija, Amal, Libija
    ... filteru određuje se na bazi izabrane veličine gravela primenom izraza: λ=7/6·Dgravela (Yildiz i Langlinais, 1991; Onyekonwu i Okonkwo, 1997; Wang i dr, 2000; Wang i dr, 2011). Na osnovu urađene granulometrijske analize izabran je odgovarajući gravel i prikazan na slici 5.8 (Guo i dr, 2012; Hallibarton ...
    ... Helm, London, 338. Wang X., Qu Q., Javora P., Pearcy R., (2006) New Trend in Oilfield Flow Assurance Management: A Review of Thermal Insulating Fluids, International Oil & Gas Conference and Exhibition, 5-7 December 2006, Beijing, China, Society of Petroleum Engineers. Wang S.L., Flamberg A., ...
    ... depressant, Hydrocarbon Processing, 78,2. Wang L.H., Deng J.G, Zhou J.L., Liu S.J., Li P., Zhao W.L., Liao J.H., (2011) A physical simulation experiment on sanding in weakly consolidate dsandstone gas reservoirs. Acta Petrol. Sin.32 (6), 1007–1011. Wang Z.G., Li A.F., (2000) .Experimental study ...

  • Отпад из процеса сагоревања угља као сировина за добијање елемената ретких земаља

    Бојан Земљак (2024)
    Због великог броја индустрија у којима се користе ови ресурси, глобална економија се у великој мери ослања на елементе ретких земаља. Елементи ретких земаља су есенцијална сировина — материјал за развој савремених технологија, али у односу на њихову огромну потражњу, њихово вађење је ограничено и повезано је са значајним утицајима на животну средину. Због њихове ограничене доступности, проблема који се јављају при процесима експлоатације, све више и више земаља почиње да тражи повољније могућности вађења елемената [REE] из секундарних ...
    Елементи ретких земаља, резерве, употреба, представници и методе опоравка елемената ретких земаља
    ... Jeumra pyjne, Cy eHCpreTCKH HHTCH3HBHC M CTBapajy 3HauajHe KOJIMUMHC TOKCHUHOT OTHaJNa H KHCCJIHX oTHajnHHx BoJta [Mancheri, 2015. ; Hu, Sun, Wang, Lim, Wang, Geng, Yao, Chen, 2023.| [82,83]. OBa negxumra HMajy BeJMKe BapHjamnuje y KOMNIO3HIIHJaMa. Hako Opoj HneHrTHQMKOBaHHX jexuHmITa y CBETy MOXe ...
    ... (uryopoBomoHMuHoj KucemuHu |HF] mokKaaamo ma oko 90% enmeMeHara [REE] je noBea3aHo ca (a3oM aMOpQbHorM crakma |[Dai, Zhao, Peng, Chou, Wang, Zhang, Li, Sun, 2010. ; Wang, Dai, Zou, French, Graham, 2019.| [163,167]. To 3Hauw ma cy morpeOHe arpecHBHHJeE MCTOJIĆ 32 MCTOBy yCICHIHy eKcrpakuujy. Kako je ...
    ... 2015. World trade in rare earths, Chinese export restrictitons, and implications. Resources Policy, 46, p.262-271. [83] Hu, X., Sun, B., Wang, C., Lim, M.K., Wang, P., Geng, X., Yao, C. and Chen, W.Q., 2023. Impacts of China's exports decline in rare earth primary materials from a trade network-based ...

  • A comparative study of the molecular and isotopic composition of biomarkers in immature oil shale (Aleksinac deposit, Serbia) and its liquid pyrolysis products (open and closed systems)

    Gordana Gajica, Aleksandra Šajnović, Ksenija Stojanović, Jan Schwarzbauer, Aleksandar Kostić, Branimir Jovančićević (2021)
    The molecular and isotopic composition of biomarkers in initial bitumen isolated from immature (0.41% Rr) oil shale samples (Aleksinac deposit) and liquid products obtained by pyrolysis in open (OS) and closed (CS) systems are studied. The influence of pyrolysis type and variations of kerogen type on biomarkers composition and their isotopic signatures in liquid products is determined. The applicability of pyrolysis type, numerous biomarkers and carbon isotopic compositions (δ13C) of n-alkanes in liquid pyrolysates is established. Pyrolysis experiments were ...
    Uljni šejl, Aleksinac, organska supstanca, otvoreni i zatvoreni sistem pirolize, biomarkeri, izotopski sastav ugljjenika

  • 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
    ... using bioabsorbents Ulva lactuca and Sargassum. Afr. J. Biotechnol. 2008, 7, 2649–2655. 28. Sun, K.; Fan, R.; Zhang, X.; Zhang, Z.; Shi, Z.; Wang, N.; Xie, P.; Wang, Z.; Fan, G.; Liu, H.; et al. An overview of metamaterials and their achievements in wireless power transfer. J. Mater. Chem. C 2018, 6, 2925–2943 ...
    ... carbon nanofibers: Effects on the catalytic performance of fructose dehydration. J. Carbon Res. C 2018, 4, 9. [CrossRef] 55. Wang, G.; Zhang, M.; Liu, S.; Xie, X.; Ding, G.; Wang, Y.; Chu, P.; Gao, H.; Ren, W.; Yuan, Q.; et al. Synthesis of Layer-Tunable Graphene: A Combined Kinetic Implantation and Thermal ...
    ... lead removal from aqueous solutions by fixed bed of natural zeolite-clinoptilolite. Sep. Purif. Technol. 2006, 49, 237–244. [CrossRef] 2. Fu, F.; Wang, Q. Removal of heavy metal ions from wastewaters: A review. J. Environ. Manag. 2011, 92, 407–418. [CrossRef] [PubMed] 3. Hamidpour, M.; Kalbasi, M ...

  • 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)
    Paleontology, Stratigraphy, Ecology, Evolution, Behavior and Systematics

  • Substitution reactions of some novel sterically hindered monofunctional Pd(II) complexes

    Aleksandar Mijatović, Jovana Bogojeski, Biljana Petrović, Živadin D. Bugarčić (2011)
    Reakcije supstitucije monofunkcionalnih kompleksa [(TLtBu)PdCl]+ i [Pd(tpdm)Cl]+, gde je TLtBu = 2,6-bis[(1,3-di-terc-butilimidazolin-2-imino)metil]piridin i tpdm = terpiridindimetan, sa nukleofilima kao što su: tiourea, I−, Br−, NO2−, piridin i dimetil-sulfoksid (DMSO) proučavani su u 0,1 M vodenom rastvoru NaClO4 u prisustvu 10 mM NaCl. Reakcije su sprovedene na tri različite temperature (288, 298 i 308 K) korišćenjem tehnike zaustavljenog protoka na različitim temperaturama. Reakcije supstitucije su praćene pod uslovima pseudo prvog reda sa velikim viškom nukleofila. Dobijeni rezultati pokazuju da kompleks ...
    Materials Chemistry, Inorganic Chemistry, Physical and Theoretical Chemistry
    ... Al-Allaf, L.J. Rashan, Boll. Chim. Farmac. 140 (2001) 205. [11] E.J. Gao, F.C. Liu, M.C. Zhu, L. Wang, Y. Huang, H.Y. Liu, S. Ma, Q.Z. Shi, N. Wang, Enzyme Inhib. Med. Chem. 25 (2010) 1. [12] E.J. Gao, L. Wang, M.C. Zhu, L. Liu, W.Z. Zhang, J. Med. Chem. 45 (2010) 311. [13] R. Jose, D.V. Marıa, C. Natalia ...
    ... Zhu, H.X. Yin, L. Liu, Q. Wu, Y.G. Sun, J. Inorg. Biochem. 102 (2008) 1958. [17] J. Zhang, L. Li, L. Wang, F. Zhang, X. Li, Eur. J. Med. Chem. 45 (2010) 5337. [18] C.Y. Shi, E.J. Gao, S. Ma, M.L. Wang, Q.T. Liu, Bioorg. Med. Chem. Lett. 20 (2010) 7250. [19] R.A. de Souza, A. Stevanato, O. Treu-Filho ...

  • Fuzzy expert analysis of the severity of mining machinery failure

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    Mining machinery failure is almost an everyday occurrence. Usually the failures bare certain consequences, which require additional financial costs to repair and restore the system to its operational state. The consequences are viewed through negative and damaging effects a failure has on the machine, health and safety of the employees, work environment, and on the environment. The removal of the consequences of the failure requires additional financial investment, which has a negative impact on the company’s business. In order ...
    Severity of failure, Severity of failure assessment, Mining machinery, Fuzzy sets, Fuzzy logic

  • BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties

    Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković (2023)
    To investigate the influence of spinel structure and sintering temperature on the functional properties of BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface from acetylacetonate precursors. As-prepared powders were additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the detailed examination of phase composition and morphology. The magnetic, dielectric, and ...
    ferroelectric, dielectric properties, magnetic properties, titanate/ferrite composites, phase composition
    ... Mechanisms, and Future Directions. Nanomaterials 2020, 10, 2072. [CrossRet] 8. _ Mao, Q.; Wu, J.; Hu, Z.; Xu, Y.; Du, Y.; Hao, Y.; Guan, M.; Wang, C.; Wang, Z.; Zhou, Z.; et al. Magnetoelectric devices based on magpnetoelectric bulk composites. J. Mater. Chem. C 2021, 9, 5594–5614. [CrossRef] 9 ...
    ... Solutions for maximum coupling, in multiferroic magnetoelectric composites by material design. Sci. Rep. 2018, 8, 4866. [CrossRef] Feng, M.; Wang, J.; Hu, J.-M.; Wang, J.; Ma, J.; Li, H.-B.; Shen, Y.; Lin, Y.-H.; Chen, 1.-Q.; Nan, C.-W. Optimizing, direct magnetoelectric coupling, in Pb(Zr,Ti)Os/Ni mu ...
    ... the BaTiOxa phase with higher resistivity and the conductive oxide phases with much lower resistivity. This is in accordance with the research of Yu et al. where the high value of the dielectric constant with frequency relaxation of the BaTiOy-(Nio.3Zno.;)Fe2 ı Oa has been attributed to this type ...

  • Primena programa UVSZ pri zaštiti od miniranja

    Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac, Rade Tokalić (2021)
    Primena energije eksploziva tj. miniranje, predstavlja osnovni način eksploatacije čvrstih mineralnih sirovina u rudarstvu. Miniranjem se postižu vrlo povoljni tehnoekonomski pokazatelji, koje nažalost prate i negativni efekti miniranja. U cilju zaštite životne sredine potrebno je za svaku radnu sredinu odrediti jednačinu oscilovanja stenske mase pri miniranju. Ova jednačina definiše promenu brzine oscilovanja stenske mase u zavisnosti od rastojanja, količine eksploziva, uslova izvođenja miniranja i geoloških karakteristika stenske
    Program UVSZ, miniranje, potres, zaštita životne sredine
    ... Miniranjem se postižu vrlo povoljni tehno-ekonomski pokazatelji, koje nažalost prate i negativni efekti miniranja (Mohamed & Mohamed, 2013; Kabwe & Wang, 2016; Malbaši & Stojanovi , 2018; Baulovi et al., 2019). Pod negativnim efektima miniranja podrazumevamo dejstvo vazdušnog talasa, zvu ni efekat ...
    ... Miniranjem se postizu vrlo povoljni tehno-ekonomski pokazatelji, koje nazalost prate i negativni efekti miniranja (Mohamed & Mohamed, 2013; Kabwe & Wang, 2016; Malba’i¢ & Stojanovié, 2018; Baulovié et al., 2019). Pod negativnim efektima miniranja podrazumevamo dejstvo vazduSnog talasa, zvu¢ni efekat ...
    ... by blast operations at a limestone quarry by means of different transducer mounting. Int. J. Sustain. Dev. Plan., 11, 959–969. [4] Kabwe, E., & Wang, Y.M. (2016). Airblast and ground vibration monitoring at Chimiwungo pit. Geomaterials, 6, 28-38. doi: 10.4236/gm.2016.61003 [5] Koji , I. (2019) ...

  • Advancing Sentiment Analysis in Serbian Literature: A Zero and Few-Shot Learning Approach Using the Mistral Model

    Milica Ikonić Nešić, Saša Petalinkar, Mihailo Škorić, Ranka Stanković, Biljana Rujević (2024)
    Ova studija predstavlja analizu sentimenta srpskih starih romana iz perioda 1840-1920, koristeći veliki jezički model (LLM) Mistral za tehniku učenja sa zasnovani na takozvanim "zero" i "few-shot" pokušajima. Glavni pristup uvodi inovacije osmišljavanjem istraživačkih upita (promptova) uključuju tekst sa uputstvom za klasifikaciju bez primera i na osnovu nekoliko primera, omogućavajući jezičkom modelu da klasifikuje osećanja u pozitivne, negativne ili objektivne kategorije. Ova metodologija ima za cilj da pojednostavi analizu osećanja ograničavanjem odgovora, čime se povećava preciznost ...
    zero-shot, few-shot, sentiment, Serbian, Mistral model

  • Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions

    Martin Fabián, Bratislav Antić, Vladimír Girman, Milica Vučinić-Vasić, Aleksandar Kremenović, Shigeru Suzuki, Horst Hahn, Vladimír Šepelák (2015)
    A series of nanostructuredfluorite-type Ce1–xYxO2–δ (0rxr0.35) solid solutions, prepared via highenergy milling of the CeO2/Y2O3mixtures, are investigated by XRD, HR-TEM, EDS and Raman spectroscopy. For thefirst time, complementary information on both the long-range and short-range structural features of mechanosynthesized Ce1–xYxO2–δ, obtained by Rietveld analysis of XRD data and Raman spectroscopy, is provided. The lattice parameters of the as-prepared solid solutions decrease with increasing yttrium content. Rietveld refinements of the XRD data reveal increase in microstrains in the host ceria ...
    Ceria, Yttrium, Solid solution, Mechanosynthesis, Oxygen vacancy, Nanocrystalline material