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Упит dcterms_subject_txt:Water Science and Technology

2403 items

  • 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
    ... Petroleum Science and Technology, 24,195-206. 86 BinderBenjamin Julian Tomte (2012) Production Optimization in a Cluster of Gas-Lift Wells, Master of Science in Engineering Cybernetics, Supervisor: Bjarne Anton Foss, Department of Engineering Cybernetics, Norwegian University of Science and Technology ...
    ... Petroleum Science and Engineering, Volume 6, Issue 3, 201-211. Zhang X., Tian J., Wang L., Zhou Z., 2002.Wettability effect of coatings on drag reduction and paraffin deposition prevention in oil, J. Petrol, Sci. Eng. 36, 87- 95. 97 Zhang Y.C., (2011) Researchon Water Plugging and Sand Control ...
    ... Identification of key issues for successful technology transfer in the Arab countries: a Delphi study, International Journal of Technology Transfer and Commercialisation 8 (1), 22–50. Al-Shamrani A.A, James A., Xiao H., (2002) Separation of oil from water by dissolved air flotation, Colloid Surf ...

  • Knowledge and Rule-Based Diacritic Restoration in Serbian

    Cvetana Krstev, Ranka Stanković, Duško Vitas (2018)
    In this paper we present a procedure for the restoration of diacritics in Serbian texts written using the degraded Latin alphabet. The procedure relies on the comprehensive lexical resources for Serbian: the morphological electronic dictionaries, the Corpus of Contemporary Serbian and local grammars. Dictionaries are used to identify possible candidates for the restoration, while the dataobtainedfromSrpKorandlocalgrammarsassistsinmakingadecisionbetween several candidates in cases of ambiguity. The evaluation results reveal that,dependingonthetext,accuracyrangesfrom95.03%to99.36%,whilethe precision (average 98.93%) is always higher than the recall (average 94.94%).
    diacritic restoration, morphological dictionary, corpus, word n-grams, local grammars
    ... Will, L. (2012). The iso 25964 data model for the structure of an information retrieval thesaurus. Bulletin of the Association for Information Science and Technology, 38(4):48–51. Proceedings of CLIB 2018 103 ...
    ... 16-29-09606) and the Ministry of Education and Science of the Russian Federation (project N 14.601.21.0018). References Azarova, I., Braslavsky, P., Zakharov, V., Kiselev, Y., Ustalov, D., and Khohlova, M. (2016). Integration of thesauri russnet and yarn. In Proceedings of Conference ”Internet and Modern ...
    ... Russian thesauri intended for natural language process- ing and information retrieval applications. RuThes-like thesauri include, besides RuThes, Sociopolitical thesaurus, Security Thesaurus, and Ontology on Natural Sciences and Technology. The RuThes format is based on three approaches for developing ...

  • The Nooj System as Module within an Integrated Language Processing Environment

    Ranka Stanković, Duško Vitas, Cvetana Krstev (2008)
    NooJ, electronic dictionary, lexical resources
    ... 9, ISO CD 24613:2006. Krstev C., Pavlović-Lažetić G., Vitas D., Obradović I.: Using Textual and Lexical Resources in Developing Serbian Wordnet. Romanian Journal of Information Science and Technology, Romanian Academy, Publishing House of the Romanian Academy, vol. 7, No. 1-2, pp. 147- 161 ...
    ... NooJ Manual, Université de Franche-Comté (2007) Tufiş, D. ed. 2004. Special Issue on BalkaNet Project, Romanian Journal on Information Science and Technology. Bucureşti: Publishing house of the Romanian academy. TMX 1.4b Specifacion, OSCAR Recommendation, 26 april 2005, http://www.lisa.org/tmx/ ...
    ... Human Language Technology group has been developing a variety of lexical resources over a long period, reaching a considerable volume to date. These resources have been developed for many years, and it is understandable that they have been conceived within different projects and frameworks, both ...

  • Formative evaluation of e-learning projects with the logical framework approach

    Roberto Linzalone, Giovani Schiuma, Ivan Obradović, Ranka Stanković (2015)
    ... that characterizes educational systems in the 21st century, resulting from the merge of different disciplines, such as computer science, communication technology, and pedagogy, since majority of the definitions contained characteristics of more than one discipline [15]. The definitions existing ...
    ... significant parts of a learning value chain, including management and delivery [17]. E-Learning supports the educational processes utilizing information and communications technology to mediate synchronous as well as asynchronous learning and teaching activities” [18]. Despite the large amount of ...
    ... evaluation that applicants were required to develop and submit within the mentioned Call. Baektel is an innovative project, the technology platform is implemented on an experimental basis, and is not relevant the analysis of training needs and the courses to be activated, rather the analysis of ...

  • Пројекат ПРИЗМА: Карактеризација и технолошки поступци за рециклажу и поновну употребу флотацијске јаловине рудника „Рудник“

    Владимир Симић, Стефан Петровић, Филип Арнаут, Весна Цветков, Милена Костовић, Драган Радуловић, Јовица Стојановић, Владимир Јовановић, Дејан Тодоровић, Нина Николић, Јелена Сенћански, Грозданка Богдановић, Драгана Мариловић (2024)
    Prizma, REASONING, Rudnik, jalovina, Fond za nauku Republike Srbije

  • 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
    ... M., Baniasadi, M. and Farnaud, S., 2020. Development and evolution of biocyanidation in metal recovery from solid waste: a review. RevieWs in Environmental Science and Bio/Technology, 19, p.509-530. [213] Vranova, V., Rejsek, K. and Formanek, P., 2013. Aliphatic, cyclic, and aromatic organic ...
    ... lanthanide impurity levels change with chemistry and structure of inorganic compounds. ECS Journa! of Solid State Science and Technology, 2(2), p.R3001. [37] Cotton, S., 2024. Lanthanide and actinide chemistry. John Wiley & Sons. [38] Yan, B. and Yan, B., 2017. Rare earth, rare earth luminescence ...
    ... Separation and Purification Technology, 320, p.124132. [204] Juang, R.S., Chen, J.D. and Huan, H.C., 2000. Dispersion-free membrane extraction: case studies of metal ion and organic acid extraction. Jowrma! of u Membrane Science, 165(1), p.59-73. [205] James, M., Cassidy, D., Goossens, D.J. and Withers ...

  • Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)

    Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović (2014)
    Sphene (CaTiSiO5), a calcium titanosilicate ceramic has been prepared from a powder mixture of CaCO3, TiO2 and SiO2 using vibro-milling for homogenization and activation of precursors. During the highpressure and high-temperature synthesis (HPS) process at 4 GPa and 1,200 °C, sphene undergoes into phase transition, from room-temperature phase P21/a to high-temperature phase A2/a. Evidence of that structural phase transition is given in this paper using infrared, Raman spectroscopy and X-ray powder diffraction. Rietveld refinement was employed to get the ...
    Sphene, Phase transition, Raman spectroscopy, X-ray diffraction, SEM, IR

  • Improvement of geodatabase queries within GeolISS

    Ranka Stanković (2008)
    ... vol. 4, pp. 1103-1106. [11] Krstev C., Pavlović-Lažetić G., Vitas D., Obradović I.: “Using Textual and Lexical Resources in Developing Serbian Wordnet”, Romanian J. Information Science and Technology, Romanian Academy, vol. 7, No. 1–2, pp. 147–161, (2004) [12] Krstev, C., Vitas, D., Maurel, D. ...
    ... [2], interchange schemes [3], and standards proposed by ISO TC211 [4]. The design is also significantly influenced by the Ontology Web Language (OWL). GeolISS is implemented using ESRI ArcGIS technology [5], and designed to function as a personal geodatabase and SDE enterprise geodatabase on ...
    ... semantic and multilingual expansions of the query. The Human Language Technology group at the University of Belgrade (HLT) has been developing various lexical resources over a long period, the resources reaching a considerable volume to date [8]. They include morphological e-dictionaries and finite ...

  • Project REASONING: Characterization and technological procedures for recycling and reusing of the rudnik mine flotation tailings

    Vesna Cvetkov, Vladimir Simić, Stefan Petrović, Filip Arnaut, Milena Kostović, Dragan Radulović, Jovica Stojanović, Vladimir Jovanović, Dejan Todorović, Nina Nikolić, Jelena Senćanski, Grozdanka Bogdanović, Dragana Marilović (2024)

  • Remedijacija otpadnih voda Rudnika prirodnim zeolitom

    Igor Veličković (2024)
    U radu je razmatrano prečišćavanje otpadnih flotacijskih voda sa područja rudnika Rudnik prirodnim zeolitskim tufom sa planine Jastrebac. Prečišćavanje otpadnih flotacijskih voda sa područja rudnika Rudnik prirodnim zeoliskim tufom sa obronaka planine Jastrebac pokazala se veoma efikasnom. Naime, u tri otpadne flotacijske vode utvrđen je povišen sadržaj arsena, hroma, gvožđa, mangana, kao i nikla. Jednostavnim tretmanom zeolitskim tufom iz ovih voda uklonjeni su svi ovi elementi. Sadržaji gvožđe i mangana su sniženi od 95 do 99 %, dok su ...
    flotation waste water, zeolite tuff, purification
    ... (Serbia, F.Y.R. of Macedonia and 33 northern Greece): origin, evolution and geodynamic significance inferred from major and trace element data and Sr-Nd-Pb isotopes. Lithos 108, 131—150. Wang, S., Peng, Y. 2010. Natural zeolites as effective adsorbents in water and wastewater treatment. Chem ...
    ... tuff, because apart from exploitation, there are no additional costs for separation and/or modification, and the efficiency of removing. toxic elements is quite satisfactory. Key words: /flotation waste water, zeolite tuff, purification Sadržaj |00 b AAAARAVAAAAAAAAAAAARAAARARAAARIRAARAAR ...
    ... Mineralogy and genetic characteristics of the Rudnik Pb-Zn/ Cu,Ag,Bi,W polymetallic deposit (Central Serbia) - new occurrence of Pb(Ap)Bi sulfosalts. Periodico di Mineralogia 85, 121—135. Shoumkova A. 2011. Published by the Australian Institute of High Energetic Materials Zeolites for water and wastewater ...

  • Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach

    Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2021)
    Poor water solubility of new chemical entities is considered as one of the main obstacles in drug development, as it usually leads to low bioavailability after administration. To overcome these problems, the selection of the appropriate formulation technology needs to be based on the physicochemical properties of the drug and introduced in the early stages of drug research. One example of the new potential drug substance with poor solubility is DK-I-60-3, deuterated pyrazoloquinolinone, designed for the treatment of various neuropsychiatric ...
    pyrazoloquinolinones, nanocrystals, wet media milling, fasted/fed bioavailability
    ... Ministry of Education, Science and Technological De- velopment, Republic of Serbia through grant agreements no. 451-03-9/2021-14/200161 (Faculty of Pharmacy), 451-03-09/2021-14/200126 (Faculty of Mining and Geology), and 451-03-9/2021- 14/200026 (Institute of Chemistry, Technology and Metallurgy); National ...
    ... Microelectronic Technologies, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia; danijela@nanosys.ihtm.bg.ac.rs * Correspondence: snezana.savic@pharmacy.bg.ac.rs Abstract: Poor water solubility of new chemical entities is considered as one ...
    ... with or without surfactants. Being poorly soluble not only in water but also in lipid and organic solvents, DK-I-60-3 could be considered as a brick dust molecule. For substances with these characteristics, amorphization or nanocrystal technology would be the formulation strategy of choice to overcome their ...

  • Proširivanje upita zasnovano na leksičkim resursima

    Ranka Stanković, Ivan Obradović, Cvetana Krstev (2009)
    U radu je opisano kako se leksički resursi za srpski jezik i softverski alati, razvijeni u okviru Grupe za jezičke tehnologije Univerziteta u Beogradu, mogu koristiti za unapređenje postavljanja upita. Rezultati pretrage mogu biti značajno unapređeni korišćenjem različitih leksičkih resursa, kakvi su morfološki rečnici i semantičke mreže. Izloženi pristup može se iskoristiti i u Sistemu naučnih, tehnoloških i poslovnih informacija, jer je efikasno pretraživanje ovog dragocenog resursa, imajući u vidu njegovu heterogenost i obim, kao i preovladavajući tekstualni sadržaj, ...
    ... Resources and Basic Tools“, Proc. of the International Workshop on Balkan Language Resources and Tools, Thessaloniki, Greece, S. Piperidis, V. Karakaletsis (eds.), pp. 97-104. [2] Tufiş, D. (ed.). (2004) Special Issue on BalkaNet Project, Romanian Journal on Information Science and Technology ...
    ... presents how resources and tools developed within the Human Language Technology Group at the University of Belgrade can be used for improvement of queries. Search results can be substantially improved by using various lexical resources, such as morphological dictionaries and semantic networks. The ...
    ... scientific, technical and business information. Efficient exploration of such a valuable source, in view of the diversity and amount of archived data, including textual, is a complex task. The tools we describe are WS4LR, a software tool that has already been developed and used for solving different ...

  • Centar za hidrogeologiju karsta - 15 godina nauke i struke

    urednici Saša Milanović, Ljiljana Vasić, Zoran Stevanović, Branislav Petrović (2023)
    Centar za hidrogeologiju karsta
    ... elements in surface water and groundwater. In addition to these donations, extremely important for the establishment of the laboratory was a contribution by the Serbian Ministry of Education, Science and Technological Development/Department for Pupil and Student Standards and Investments, Which ...
    ... g), and hydrogeological investigation of the GUI Baba spring (Forrasbarlang). Dr. S. Milanović and Dr. lj. Vasić visited the University of Bulawayo (National University of Science and Technology - NUST) in Zimbabwe in July 2017. On that occasion, they gave lectures at the University and visited ...
    ... Vakanjac, and they were soon Joined by Branislav Petrović, a scholarship recipient of the Ministry of Science and Technology. During 2009, the team was strengthened by Ljiljana Vasić, at the time the secretary of the Department and at the same time a PhD student. In the following years, CKH members ...

  • Evaluation of the effects of wastewater heat pump integration into district heating systems by simulation

    Dejan Ivezić, Marija Živković, Dimitrije Manić, Aleksandar Madžarević, Boban Pavlović, Dušan Danilović (2023)
    The integration of wastewater heat pumps (using purified water) in district heating systems is analyzed in this paper. The simulation procedure is proposed to analyze the impacts of stochasticity of purified water temperature and flow to heat pump integration and operation. The analysis includes calculation of the daily and seasonal coefficient of performance, as well as fossil fuel savings and CO2 emission reduction due to wastewater heat pump use. The proposed procedure is implemented for the case study in ...
    otpadne vode, toplotna pumpa, daljinsko grejanje, simulacija

  • Multiword Expressions between the Corpus and the Lexicon: Universality, Idiosyncrasy and the Lexicon-Corpus Interface

    Verginica Barbu Mititelu, Voula Giouli, Kilian Evang, Daniel Zeman, Petya Osenova, Carole Tiberius, Simon Krek, Stella Markantonatou, Ivelina Stoyanova, Ranka Stankovic, Christian Chiarcos (2024)
    Predstavljamo trenutne aktivnosti na definisanju interfejsa leksikona i korpusa koji će služiti kao referenca u prikazu polileksemskih jedinica - višečlanih izraza - (različitih tipova - imenskih, glagolskih, itd.) u specijalizovanim leksikonima i povezivanju ovih unosa sa njihovim pojavljivanjima u korpusima. Konačni cilj je korišćenje ovakvih resursa za automatsko identifikovanje višečlanih izraza u tekstu. Uključivanje nekoliko prirodnih jezika ima za cilj univerzalnost rešenja koje nije usredsređeno na određeni jezik, kao i prilagođavanje idiosinkrazijama. Raspravljaju se izazovi u leksikografskom opisu višerečnih ...
    multiword expression lexicon, corpus, proof-of-concept lexicon encoding

  • Mitigating hydrate formation in onshore gas wells: A case study on optimization techniques and prevention

    Milica Ješić, Bojan Martinović, Stefan Stančić, Miroslav Crnogorac, Dušan Danilović (2023)
    Gas wells, particularly those situated onshore, play a vital role in the global energy sector by supplying a significant portion of natural gas. However, operational challenges, notably gas hydrate formation, pose substantial issues, leading to complications such as flowline blockages and unexpected well shutdowns. Gas hydrates, crystalline structures resembling ice, ...
    Gas Well, Gas Hydrate Formation, Well Modeling, Well Performance Optimization, Choke Position Adjustments, Methanol Injection

  • Development of A Business Intelligence Tool For Accident Analysis in Mines

    Ljiljana Kolonja, Ranka Stanković, Ivan Obradović, Olivera Kitanović, Uroš Pantelić (2015)
    ... large amounts of heterogeneous data and needs interoperability among various related information technology applications and data sets, supported by analytical services implemented in a business intelligence tool. This paper describes such a system for mine safety and its application for accident analysis ...
    ... knowledge assets within the organization and defining access to them. Within knowledge sharing the knowledge is disseminated across the organization, both formally and informally, in most cases with the support of information and communication technology (ICT). As for knowledge transferring, it ...
    ... business data, using the technology of multidimensional or relational databases. Managers and analysts who often require higher levels of aggregated views on business data use this technology. Online analytical processing is a capability of management, decision support and executive information ...

  • Transboundary groundwater resource management: needs for monitoring the Cijevna River Basin (Montenegro–Albania)

    Momčilo Blagojević, Zoran Stevanović, Milan Radulović, Veljko Marinović, Branislav Petrović (2020)
    The transboundary Cijevna River Basin shared between Albania and Montenegro has a surface area of 650 km2. It is extremely important for water management, especially in the country of Montenegro which is downstream. Due to the high permeability of both the karst and intergranular aquifers that exist in the basin, the River Cijevna sinks along the length of its riverbed and in summer months it usually dries up completely at the confluence section. Hydrometry surveys undertaken during a drought ...
    Upravljanje međugraničnim vodama, ranjivost podzemnih voda, monitoring mreža, karstne izdani, Albanija, Crna Gora

  • Mineralogical and physicochemical characterization of bentonite clay from Svrljig, Serbia

    Maja Milošević, Bojan Kostić (2022)
    ... clay has a high content of montmoril- lonite and a smaller amount of quartz, carbonates, iron oxy/hydroxides and feldspars. Acknowledgements. Ministry of Education and Science, Republic of Serbia, on realization and financing of scientific research work in 2022, contract No. 451-03-68/2022-14/200126 ...
    ... scientists can present and discuss their latest results not only from the Carpathian-Balkan region, but also beyond it. Agricultural University, Plovdiv University of Food Technology, Plovdiv UNIVERSITY OF MINING AND GEOLOGY “ST. IVAN RILSKI” Faculty of Geology and Geography SU “St. Kliment ...
    ... spacing value of 15.11 Å at 5.86 (2θ) and less frequent minerals such as quartz, carbonates and feldspars. This mineralogy was confirmed by XRD for oriented, saturated and heated samples. DTA curve, in addi- tion to the typical peaks related to montmorillonite (≈ 140 °C and 600 °C), also contains two smaller ...

  • Hydrochemical impact of the hydraulic tunnel on groundwater in the complex aquifer system in Pirot, Serbia

    Marina Ćuk, Igor Jemcov, Ana Mladenović, Marina Čokorilo Ilić (2020)
    Hidrogeohemijski procesi, hidrohemijske promene, karstna izdan, tunel pod pritiskom, multivarijantne statističke analize