Претрага

Упит dcterms_subject_txt:Computer Science Applications,Process Chemistry and Technology

2414 items

  • Utilizing sewage wastewater heat in district heating systems in Serbia: effects on sustainability

    Marija Živković, Dejan Ivezić (2021)
    Transformation of the heating sector is recognized as being essential for ensuring reliable and afordable energy services provided with reduced consumption of energy sources and diminished impact on the environment and less import dependency. The possibility of utilizing energy sources that otherwise would be wasted needs to be considered and treated as a big advantage of district heating systems. Despite many advantages, sewage wastewater heat is still a mostly unused resource at the global level and a totally unused ...
    рекуперација топлоте из отпадних вода, систем даљинског грејања, топлотне пумпе, енергетске уштеде, емисија угљендиоксида, енергетска безбедност, Србија
    ... ation of flow rate and temperature over the year (Meggers and Leibundgut 2011). Due to the high heat capacity and density, wastewater is considered as a suitable heat source for implementation in heat pumps (HP) systems, whose operation is based on simple and proven technology (Hep- basli et al. ...
    ... intro- duction of more efficient technology with the same effi- ciency for consumers and level of comfort, • Reduction of carbon dioxide emission of 6.5% per year by introducing this alternative renewable energy source and substitution of coal, heavy fuel oil, and natural gas, • Reduction of import ...
    ... of available heat source. Besides selection of the appropriate heat pump technology, the heat source has influence on the placement of the heat pump unit, connection and operational modes, appropriate thermal capacity and range of operational temperatures for the system (Sayegh et al. 2018). These ...

  • Chemo-probe into the mantle origin of the NW Anatolia Eocene to Miocene volcanic rocks: Implications for the role of, crustal accretion, subduction, slab roll-back and slab break-off processes in genesis of post-collisional magmatism

    E. Yalçın Ersoy, Martin R. Palmer, Ş. Can Genç, Dejan Prelević, Cüneyt Akal, İbrahim Uysal (2017)
    Post-collisional Cenozoic magmatic activity in NW Anatolia produced widespread volcanism across the region. In the Biga Peninsula, in the west, medium-K calc-alkaline to ultra-K rocks with orogenic geochemical signature were emplaced at ~43–15 Ma (Biga orogenic volcanic rocks; BOVR). Volcanic activity in the Central Sakarya region, to the east, is mainly restricted to ~53–38Ma, but also continued during the Early Miocene with small basaltic extrusives (Sakarya orogenic volcanic rocks; SOVR). This study presents a new set of geochemical data ...

  • Kinetics, mechanism, and equilibrium studies of the reactions between a ruthenium(II) complex and some nitrogen- and sulfur-donor nucleophiles

    Aleksandar M. Mijatović, Ratomir M. Jelić, Jovana Bogojeski, Živadin D. Bugarčić, Biljana Petrović (2013)
    Kinetika i mehanizam reakcija supstitucije između [Ru(trpi)(bpi)Cl]+ sa nukleofilima gvanozin-5′-monofosfatom, L-histidinom, tioureom i dimetilsulfoksidom proučavani su spektrofotometrijski u 0,1 M NaClO4 na 310 K. Red reaktivnosti za odabrane ligande je: tiourea > gvanozin-5′-monofosfat > L-histidin > DMSO. Ovaj red je povezan sa elektronskim, strukturnim i hemijskim karakteristikama kompleksa i nukleofila. Reakcija supstitucije sa tioureom je proučavana na tri različite temperature (288, 298 i 310 K). Negativna entropija aktivacije DS = potvrđuje asocijativni način aktivacije. Formiranje kompleksa [Ru(trpi)(bpi)H2O]2+ sa ligandima ...
    Kinetika, Ravnoteža, Ru(II), L-Histidin, Guanozin-5' -monofosfat, Dimetilsulfoksid, Tiourea
    ... support from the Ministry of Education, Science, and Technological Development of the Republic of Serbia, Project 172011. References 1. Reedijk J (1999) Chem Rev 99:2499 2. Wang D, Lippard SJ (2005) Nat Rev Drug Disc 4:307 3. Lippert B (1999) Cisplatin, chemistry and biochemistry of a leading anticancer ...
    ... using the computer program Hyperquad 2006 [50]. The formation constants calculated for the selected systems are given in Table 2, while the distributions are shown in Figs. 6 and 7 (Sup- plementary Material, Figs. 3S and 4S). It is well known that 50-GMP can coordinate to metal ions via N1 and N7 positions ...
    ... y)Cl]? and thio- urea undergoes an associative mechanism. Hydrolysis of [Ru(trpy)(bpy)H2O] 2? Potentiometric measurements The hydrolysis constants of the complex were determined by titration of 1.0, 1.5, and 2.0 mM solutions of [Ru(tr- py)(bpy)H2O] 2? with NaOH. The acid-base chemistry was ch ...

  • Crystallographic, spectroscopic, thermal and computational studies of polymeric cobalt(II)–mellitate complex with 2,2′-bipyridine

    Lidija Radovanović, Dušan P. Malenov, Marko V. Rodić, Aleksandar Kremenović, Jelena Rogan (2021)
    Orange single crystals of new polymeric cobalt(II) complex {[Co(bipy)(H2O)4]2[Co(μ-mell)(H2O)2]·10H2O}n, 1, were synthesized by slow evaporation method at room temperature (bipy = 2,2′-bipyridine, mell = hexaanion of mellitic acid) and its crystal structure was determined by single-crystal X-ray diffraction. The complex 1 was characterized based on elemental analysis, FTIR spectroscopy and thermal (TG/DTA) analysis followed by computational analysis of noncovalent interactions and quantum chemical calculations of interaction energies. In 1, two crystallographically different Co(II) atoms adopt a deformed octahedral geometry, ...
    Inorganic Chemistry, Organic Chemistry, Spectroscopy, Analytical Chemistry

  • Trans-Lithospheric Diapirism as a Possible Mechanism for Ophiolite Emplacement?

    Nikola Stanković, Taras Gerya, Vladica Cvetković, Vesna Cvetkov (2024)

  • Medical Domain Document Classification via Extraction of Taxonomy Concepts from MeSH Ontology

    Mihailo Škorić, Mauro Dragoni (2019)
    This paper is a result of a task that was presented to attendants of Keyword Search in Big Linked Data summer school, that was organized by Vienna University of Technology, under the Keystone COST action in the summer of 2017. It presents a specific approach to the classification via creation of minimal document surrogates based on the US National medical library’s MeSH ontology, which is derived from the Medical Subject Headings thesaurus. In a series of previously classified medically ...
    document classification, MeSH, ontology, information extraction
    ... Elberrichi, Zakaria, Malika Taibi and Amel Belaggoun. “Multilingual Med- ical Documents Classification Based on MesH Domain Ontology”. Inter- national Journal of Computer Science Issues Vol. 9 (2012) Kolonja, Ljiljana, Ranka Stanković, Ivan Obradović, Olivera Kitanović and Aleksandar Cvjetić. “Development ...
    ... lemmatization, and sometimes by replacing synonyms or hypernyms, in or- der to further reduce the surrogates and speed up the execution time. For a qualitative classification process, it is necessary to create a surrogate which properly represents the document. (Trieschnigg et al., 2009) and (Elberrichi ...
    ... problem that arises in calculating the coefficient of similarity be- tween texts is high computer cost, which must be paid either in processing power or high execution time. For this reason, the first step in classifying (and indexing) is most often the creation of a document surrogate. Usu- ally, documents ...

  • Review: Methodological approaches and research techniques for addressing construction and remediation problems in karst reservoirs

    Saša Milanović, Ljiljana Vasić (2021)
    Earth and Planetary Sciences (miscellaneous), Water Science and Technology

  • The Late Devonian contraction along the Precaspian Basin north margin: Transpressional range building in the intracratonic domain

    Novak Novčić, Marinko Toljić (2023)
    The evolution of intraplate sedimentary basins located in the vicinity of an active convergent plate boundary is often controlled by the collisional dynamics of the adjacent orogen. The transfer of compression from the orogen to the platform's interior results in the formation of complex structural geometry and kinematics that often reactivate older crustal faults, focus far-field stresses and control the evolution of associated sedimentary basins. One place where this localisation can be optimally understood is the Precaspian Basin, situated ...
    Intrakratonske deformacije, transpresija, kosa kompresija, krustalni rasedi, intrakratonski transfer stresa, kontrakcioni blokovi

  • Numerical modeling of Selanac debris flow propagation using SPH code

    Jelka Krušić, Biljana Abolmasov, Miloš Marjanović, Manuel Pastor, Saeid M. Tayyebi (2021)
    The Selanac debris flow is a very huge event triggered after extreme rainfall caused by Cyclone Tamara activity in the Republic of Serbia in May 2014. The Selanac case study was already modelling in different programs using Voellmy rheology assumptions like RAMMS software. In this paper research are focusing particularly on the process of debris flowing from initiation zone to main deposition area using Geoflow SPH two-phase model considering frictional rheology law. Main rheological parameters are back-calculated using also ...
    debris flow, modelling, SPH code, DEM
    ... Ministry of Education, Science and Technological Development of the Republic of Serbia. 7 REFERENCES Chen, C. and Ling, C.H. (1996). ‘’Granular-Flow Rheology: Role of Shear-Rate Number in Transition Regime’’. J. Eng. Mech. 122:469–480. Cuomo, S., Pastor, M., Cascini, L. and Castorino, G.C. (2014) ...
    ... (1) - where is the kernel function and is the smoothing length of the domain of influence. This mesh-less method makes SPH well adapted to modelling problems involving large deformations and free surface problems, as the complex re- meshing process is avoided. The SPH model proposed by ...
    ... possible to incorporate numerous rheological features of both, the viscoplastic and the frictional type. In this paper a real case study of Selanac debris flow in Serbia is presented, focusing particularly on the, the process of debris flowing from initiation zone to main deposition area, modeled via ...

  • Structure, interaction with biomolecules, and cytotoxicity of copper (II) complexes chelating some Schiff base ligands

    Aleksandar Mijatović, Angelina Z. Caković, Aleksandar Lolić, Olivera Klisurić, Marko N. Živanović, Dragana S. Šeklić, Snežana Sretenović, Marija Ilić, Jovana Bogojeski (2023)
    Cancer remains one of the world's deadliest diseases, claiming many lives each day. Transition metal complexes are leading candidates in developing anticancer agens with cisplatin used in chemotherapy worldwide. Copper, an endogenous metal in the human body, is especially attractive because of its typical redox biological activities and a relatively strong affinity to nucleobases. A series of Cu(II) complexes with ethane-1,2-diamine as the amine part and pentane-2,4-dione and/or 1-phenylbutane-1,3-dione, pentane-2,4-dione and/or 1,1,1- trifluoropentane-2,4-dione, or 1,1,1-trifluoropentane-2,4-dione and/or 1-phenylbutane-1,3-dione as the ...
    Inorganic Chemistry,General Chemistry

  • Distribution of major and trace elements in the Kovin lignite (Serbia)

    Dragana Životić, Olga Cvetković, Predrag Vulić, Ivan Gržetić, Vladimir Simić, Konstantin Ilijević, Biljana Dojčinović, Suzana Erić, Bogdan Radić, Sanja Stojadinović, Snežana Trifunović (2019)
    geochemical and mineralogical study was performed on lignite samples from the Upper Miocene Kovin deposit, hosting three coal seams. The Kovin lignite is characterized by high moisture content, medium to high ash yield, medium to high sulphur content and a relatively low gross and net calorific value. The mineralogical composition, and major and trace element contents were determined by X-ray diffraction, scanning electron microscopy with energy dispersive Xray spectroscopy (SEM-EDS) analyses, and inductively coupled plasma optical emission spectrometry (ICP-OES). ...
    General Earth and Planetary Sciences, General Environmental Science
    ... chemical and mineral charac­ terization of some Bulgarian coals.– Fuel Processing Technology, 55, 55–69. doi: 10.1016/S0378­3820(97)00079­9 VASSILEV, S. & VASSILEVA, C. (2009): A new approach for the combined chemical and mineral classification of the inorganic matter in coal. 1. Chemical and mine­ ral ...
    ... Behaviour of ele­ ments and minerals during preparation and combustion of the Pernik coal, Bul­ garia.– Fuel Procesing Technology, 72, 103–129. doi: 10.1016/S0378­3820(01) 00186­2 VASSILEV, S., VASSILEVA, C., BAXTER, D. & ANDERSEN, L K. (2009): A new approach for the combined chemical and mineral classification ...
    ... Faculty of Mining and Geology, Đušina 7, 11000 Belgrade, Serbia; (corresponding author: dragana.zivotic@rgf.bg.ac.rs; tel: +381 11 3219 251; fax: +381 11 3235 537) 2 Center of Chemistry, IChTM, Studentski trg 12–16, 11000 Belgrade, Serbia 3 University of Belgrade, Faculty of Chemistry, Studentski trg ...

  • Hidrogeohemija prirodnih radioaktivnih elemenata u podzemnim vodama Srbije

    Marina D. Ćuk (2018-02-23)
    Osnovni cilj doktorske disertacije predstavljao je definisanje prirodnih koncentracija (engl. background values) U, Th, i K u podzemnim vodama, i definisanje hidrogeohemijskih uslova koji utiču na distribuciju navedenih elemenata u podzemnim vodama...
    prirodni radioaktivni elementi, podzemna voda, geohemijske sredine, hidrogeohemijski uslovi, neparametarska statistička analiza, logistički model, hidrohemijsko modeliranje
    ... concentrations and fluxes based on melt inclusion and volcanic gas data. Journal of Volcanology and Geothermal Research 140: 217 – 240. 172. Wedepohl KH. 1978. Handbook of Geochemistry. Springer-Verlag, Berlin. 173. Weiner ER. 2008. Applications of environmental aquatic chemistry: a practical ...
    ... Wians Jr FH. 2004. ROC curves in clinical chemistry: uses, misuses, and possible solutions. Clin Chem. 50(7):1118 – 25. 121. Östhols E. 1994. Some Processes Affecting the Mobility of Thorium in Natural Ground Waters. Royal Institute of Technology, Stockholm. 172 122. Palarea-Albaladejo ...
    ... (U, Th, and K) in the groundwater, and to establish hydrogeochemical conditions affecting the distribution of these elements in groundwater. The methodology of the research was carried out with contemporary field and laboratory methods (ICP - MS HR) during the process of collecting and analyzing ...

  • Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja

    Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Filip Miletić, Ivan Janković (2019)
    Hidraulični bageri primenjuju se u različitim oblastima privrede a najzastupljeniji su u građevinarstvu i rudarstvu. Na površinskim kopovima sa kontinualnim sistemima, klasifikuju kao pomoćna mehanizacija a na površinskim kopovima sa diskontinualnim sistemima, kao osnovna mehanizacija. Kako je u oba slučaja njihova primena neizostavna, važno je izvršiti adekvatnu analizu postojećih podataka, u cilju optimizacije izbora tipa hidrauličnog bagera u odnosu na uslove rada datog površinskog kopa. U radu su opisane različite višekriterijumske metode koje su korišćene za analizu hidrauličnih bagera. ...
    višekriterijumske metode, površinski kop uglja, pomoćna mehanizacija, hidraulični bager
    ... 9-18, 2012. [13] Saaty L T, Decision Making: The Analytical Hiera- rchy Process. New York, USA: Mc-Graw-Hill, 1980. [14] Russo F S M, Camanho R, Criteria in AHP: a Systematic Review of Literature. Procedia Computer Science, 55, pp. 1123-1132, 2015. DOI: 10.1016- /j.procs.2015.07.081 [15] Stojanović ...
    ... Based on TOPSIS for Ranking Evoluti- onary Algorithms. Procedia Computer Science, 55, pp. 308–317, DOI:10.1016/j.procs.2015.07.054, 2015. [17] Tsaur R. C, Decision risk analysis for an interval TO- PSIS method. Applied Mathematics and Compu- tation 218(8), pp. 4295-4304, doi:10.1016/j.amc.- 2011 ...
    ... (Analytical Hierarchy Process), PROMETHEE (Prefe- rence ranking organization method for enrichment evaluation), TOPSIS (Technique for Order of Prefe- rence by Similarity to Ideal Solution), VIKOR (Multi- criteria Optimization and Compromise Solution) i ELECTRE (ELimination and Choice Expressing RE- ...

  • Modeliranje tehnoloških procesa u rudarstvu u uslovima nedovoljnosti podataka primenom teorije grubih skupova

    Zoran M. Štirbanović (2015-07-01)
    Rudarstvo, a u okviru njega i priprema mineralnih sirovina, se odlikuje složenošću tehnoloških procesa što je posledica velikog broja uticajnih parametara. Samim tim je potrebno biti veoma obazriv prilikom donošenja odluka u oblasti rudarstva. U cilju što efikasnijeg funkcionisanja procesa, moguće je primeniti različite metode koje služe za pojednostavljenje procesa odlučivanja. Jedna od takvih metoda jeste i teorija grubih skupova. Ona predstavlja relativno novu matematičku teoriju koja je pogodna za razumevanje nepreciznih i nepotpunih podataka kao i za otkrivanje ...
    rudarstvo, priprema mineralnih sirovina, teorija grubih skupova, višekriterijumsko odlučivanje, flotacijsko jalovište, flotacijski kolektor, flotaciona mašina
    ... knowledge using self- organizing map and rough set theory, Expert Systems with Applications 33, 2007, pp. 499–508. 37. Z. Ji, Q. Suna, Y. Xiab, Q. Chena, D. Xiaa, D. Feng, Generalized rough fuzzy c-means algorithm for brain MR image segmentation, Computer methods and programs in biomedicine 108, 2012 ...
    ... Concepts, Principals, Data Extraction, and Applications, In: J. Ponce, A. Karahoca (Eds.), Data Mining and Knowledge Discovery in Real Life Applications, I-Tech, Vienna, 2009, pp. 35–58. 14. C. Wu, Y. Yue, M. Li, O. Adjei, The rough set theory and applications, Engineering Computations, Vol. 21 No ...
    ... rough set theory and medical applications, Applied Mathematics Letters 21, 2008, pp. 400–403. 27. P. Pattaraintakorn, N. Cercone, A foundation of rough sets theoretical and computational hybrid intelligent system for survival analysis, Computers and Mathematics with Applications 56, 2008, pp. 1699–1708 ...

  • Serbian NER&Beyond: The Archaic and the Modern Intertwinned

    Branislava Šandrih Todorović, Cvetana Krstev, Ranka Stanković, Milica Ikonić Nešić (2021)
    U ovom radu predstavljamo srpski književni korpus koji se razvija pod okriljem COST Akcije „Distant Reading for European Literary History” CA16204. Koristeći ovaj korpus romana napisanih pre više od jednog veka, razvili smo i učinili javno dostupnim Sistem za prepoznavanje imenovanih entiteta (NER) obučen da prepozna 7 različitih tipova imenovanih entiteta, sa konvolucionom neuronskom mrežom (CNN), koja ima F1 rezultat od ≈91% na test skupu podataka. Ovaj model je dalje ocenjen na posebnom skupu podataka za evaluaciju. Završavamo poređenje ...
    ... Novels. PeerJ Computer Science, 5:e189. Francesca Frontini, Carmen Brando, Joanna Bys- zuk, Ioana Galleron, Diana Santos, and Ranka Stanković. 2020. Named Entity Recognition for Distant Reading in ELTeC. In CLARIN Annual Conference 2020. Ali Jabbari, Olivier Sauvage, Hamada Zeine, and Hamza Chergui ...
    ... . Denis Maurel, Nathalie Friburger, and Iris Eshkol- Taravella. 2014. Enrichment of Renaissance Te- xts with Proper Names. INFOtheca: Journal of Information and Library Science, 15(1):15–27. Maciej Modrzejewski, Miriam Exel, Bianka Busch- beck, Thanh-Le Ha, and Alexander Waibel. 2020. Incorporating ...
    ... Ikonić Nešić | Proceedings of the Conference Recent Advances in Natural Language Processing - Deep Learning for Natural Language Processing Methods and Applications | 2021 | | 10.26615/978-954-452-072-4_141 http://dr.rgf.bg.ac.rs/s/repo/item/0005139 Дигитални репозиторијум Рударско-геолошког факултета ...

  • Numerical modelling of the roughly simultaneous emplacement of two distinct ophiolite belts

    Nikola Stanković, Vesna Cvetkov, Vladica Cvetković (2024)

  • Towards translation of educational resources using GIZA++

    Ivan Obradović, Dalibor Vorkapić, Ranka Stanković, Nikola Vulović, Miladin Kotorčević (2016)
    ... Loading multiple translation systems into the same node process is provided. This means the same process can hold multiple distinctly different translation models (e.g., Chinese to English in IT and English to French in medicine) at the same time, and be able to use those models to translate user-given ...
    ... (traditional), translation using CAT (Computer Aided Translation) tools and machine translation. It is, of course, possible to combine some or all of them. Leading translation companies, philanthropic organizations, mobile carriers, nonprofits, corporations and universities have joined forces in this ...
    ... Workshop Programme. 2016 [18] M. Volk, J. Graën, and E. Callegaro. Innovations in Parallel Corpus Search Tools. In LREC (pp. 3172-3178), 2014 [19] I. Obradović, “A Method for Extracting Translational Equivalents from Aligned Text”, “Methods and applications of quantitative linguistics”: selected papers ...

  • The Crystal Structure and Crystal Chemistry of Mineral-like Cd5(VO4)2(OH)4, a Novel Isomorph of Arsenoclasite and Gatehouseite

    Ljiljana Karanović, Tamara Ðorđević (2022)
    Geology, Geotechnical Engineering and Engineering Geology

  • Crystal chemistry of nephelines from ijolites and nepheline-rich pegmatites: influence of composition and genesis on the crystal structure investigated by X-ray diffraction

    Vulić Predrag, Balić-Žunić Tonči, Belmonte Louise Josefine, Kahlenberg Volker (2011)

  • Geochemical properties of the sediments of the Great War Island, Belgrade (Serbia)

    Zarić Nenad, Šajnovič Aleksandra, Jovančićević Branislav, Baltić Nevena, Ranđelović Dragana, Kašanin-Grubin Milica (2017)