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Упит dcterms_subject_txt:Na2Cu3(AsO3OH)4•4H2O

946 items

  • Истраживањe могућности коришћења нискотемпературних извора топлоте за одрживи развој енергетике градова

    Miodrag M. Grujić (2014-06-04)
    Одрживост је континуиран процес балансирања између животне средине, економске исоцијалне димензије, који се односи на системска побољшања животног окружења.Енергија се налази међу покретачима одрживог развоја везано за потребу за повећањесоцијалног благостања, његову кључну улогу у економском развоју и утицај на животнусредину. Урбане зоне, као центри потреба за енергијом и емисија угљеника, пружајузначајне могућности за промоцију одрживости енергетског система заједнице.Планирање нових енергетских капацитета, у складу са принципима одрживог развоја,обухвата спровођење политике повећања енергетске ефикасности и увођења обновљивихизвора енергије. Дисертација ставља ...
    одрживи развој, даљинско грејање, модел, сценарио, вишекритеријумскаанализа, нискотемпературни извори, ELECTRE, Београд
    ... сагласности и несагласности. 140 S12 = (1 4 5 6) NS12 = (2 3 7 8 ) S13 = (1 3 4 5 6 7) NS13 = (2 8) S21 = (2 3 7 8) NS21 = (1 4 5 6) S23 = (1 3 4 7 8) NS23 = (2 5 6) S31 = (2 5 6 8) NS31 = (1 3 4 7) S32 = (2 5 6) NS32 = (1 3 4 7 8) У четвртом кораку се одавде добија матрица ...
    ... скупови сагласности и несагласности. S12 = (1 2 4 5 6) NS12 = (3 7 8 ) S13 = (1 3 4 5 6 7) NS13 = (2 8) S21 = (3 7 8) NS21 = (1 2 4 5 6) S23 = (1 3 4 7 8) NS23 = (2 5 6) S31 = (2 5 6 8) NS31 = (1 3 4 7) S32 = (2 5 6) NS32 = (1 3 4 7 8) Табеле 44 и 45 представљају матрице сагласности ...
    ... скупови сагласности и несагласности. S12 = (1 3 4 5 6) NS12 = (2 7 8 ) S13 = (1 2 3 4 5 6 7) NS13 = (8) S21 = (2 7 8) NS21 = (1 3 4 5 6) S23 = (1 2 3 4 7 8) NS23 = (5 6) S31 = (5 6 8) NS31 = (1 2 3 4 7) S32 = (5 6) NS32 = (1 2 3 4 7 8) Табеле 53 и 54 представљају матрице сагласности ...

  • Badenske školjke jugoistočnog oboda Panonskkog basena (Centralni Paratetis)

    Gordana M. Jovanović (2014-12-05)
    Rad obuhvata detaljnu studiju badenskih školjaka koje potiču sa terenajugoistočnog oboda Panonskog basena (Centralni Paratetis). Proučavani su lokaliteti naprostorima Srbije (Fruška gora, Golubac, okolina Beograda, Aranđelovca, Koceljeva,Loznica) i severoistočne Bosne (Ugljevik). Pored taksonomske analize i paleontološkihopisa bivalvija, u radu je dat i spisak revidovanih vrsta koje su do sada pronađene usedimentima badenskog kata istraživanog terena. Do sada je ukupno poznato 41familija, 108 rodova i 174 taksona. Identifikovano je 170 bivalvijskih vrsta, međukojima su neke prvi put konstatovane na ovim ...
    školjke, baden, Panonski basen (Centralni Paratetis), stratigrafija,paleoekologija, paleogeografija, paleobiogeografija
    ... 88, tab. 4, sl. 1-2. 1986 Chlamys (Aequipecten) malvinae (du Bois de Montpereux) – Studencka, str. 35, tab. 4, sl. 5. 1993 Chlamys (Aequipecten) malvinae (du Bois) – Nevesskaja, str. 84, tab. 19, sl. 1-4. 2004 Aequipecten malvinae (Dubois) – Mandic, str. 138, tab. 5, sl. 3, 4. Materijal: ...
    ... (Lamarck, 1805) Tab. 1, sl. 4. 1870 Anadara diluvii – Hörnes, str. 333, tab. 44, sl. 4. 1960 Anadara diluvii (Lamarck) – Kojumdgieva i Strachimirov, str. 61. tab. 19, sl. 9 10. 1963 Anadara diluvii petransversa Sacco – Taviani and Tongiorgi, str. 9, tab. 3, sl. 2, 4-8. 1974 Anadara (Anadara) ...
    ... ISTRAŽIVANOG PODRUČJA......................................................................................... 4 3. PREGLED DOSADAŠNJIH ISTRAŽIVANJA ................................. 6 4. MATERIJAL I METODE................................................................. 10 5. STRATIGRAFSKI PRIKAZ ...

  • Mikroorganizmi - biohidrogeološki indikatori odabranih pojava mineralnih voda Srbije

    Vladimir Šaraba (2021)
    Sa namerom definisanja hidrogeološke uloge i značaja mikrobiološkog diverziteta odabranih pojava mineralnih voda Srbije, primenom sistema biodetektora, dokazano je prisustvo gvožđevitih, sulfato-redukujućih, sluz-produkujućih, heterotrofnih aerobnih i denitrifikacionih bakterija, na osnovu čega je proračunat rizik od razvoja procesa biokorozije i biohemijske inkrustacije, te zdravstveni rizik. Uz procenu rizika, izvedene su analize skenirajuće elektronske mikroskopije biofilmova i hidrogeohemijsko modeliranje, te makroskopska, otpička i difrakciona ispitivanja naslaga inkrustacije, dok je fizičko-hemijskim analizama utvrđena vrednost ukupne mineralizacije iznad 1 g/L, kao i povišeni ...
    biohidrogeologija, SEM analize, makroskopska i optička ispitivanja, rendgenska difrakcija praha, hidrogeohemijsko modeliranje, BART analize, metabarkoding analize mikrobioma, fizičko-hemijske analize, starenje bunara (biokorozija, biohemijska inkrustacija i biozarastanje), zdravstveni rizik
    ... Anaerobne bakterije* CG ˂0.5 0.5-2 3-4 >4 Sluz produkujuće bakterije DS ˂1 2 3-7 >7 SR ˂1 2-3 4-6 >6 CP ˂0.5 1-2 3-6 >6 CL ˂1 2 3-6 >6 BL ˂1 2-4 5-8 >8 TH ˂2 3-4 5 >6 PB ˂1 2-4 5-8 >8 GY ˂1 2-3 4-8 >8 Heterotrofne aerobne bakterije UP ˂0.5 1-2 3-4 >4 DO ˂1 2-3 4-6 >6 *Reakcije koje nisu kara ...
    ... Umerena Gvožđevite bakterije BC ˂2 3 4 – 8 >8 BG ˂1 2 – 6 7 – 8 >8 BL ˂2 3 – 6 7 – 8 >8 BR ˂1 2 3 – 6 >6 CL ˂0,5 0,5 – 2 3 – 4 >4 FO ˂0,5 0,5 – 1 2 – 4 >4 GC ˂1 2 – 4 5 – 8 >8 RC ˂1 2 – 3 4 – 8 >8 Sulfato-redukujuće bakterije BB ˂1 2-3 4-8 >8 BT ˂1 2-4 5-8 >8 BA ˂2 2-5 6-8 >8 Anaerobne ...
    ... 5 m do 17 m, što objašnjava i izražene vrednosti koeficijenta transmisibilnosti (Bogatić i Dublje: T = 8 × 10-4 - 6 × 10-3 m2/s), dok vrednosti specifične izdašnosti iznose od 5 × 10-4 do 4 × 10-3. Eksploatacione rezerve podzemnih (mineralnih) voda Mačve procenjuju se u količini od oko 300 L/s, pri ...

  • OER obrazovni sadržaji kao spona između akademskog i preduzetničkog znanja

    Ivan Obradović, Ranka Stanković, Marija Radojičić (2014)
    ... sadržaje. Nešto kasnije, 2007. godine, OECD (Organisation for Economic Cooperationand Development) je objavio studiju o upotrebi i širenju OER sadržaja [4], a formiran je i Konzorcijum za otvoreno obrazovanje (OCW Consortium) kao svetska mreža institucija koje podržavaju ovu inicijativu1. Kada je reč ...
    ... Academic and Entrepreneurial Knowledge in Technology Enhanced Learning - Spajanje akademskog i preduzetničkog znanja kroz tehnološki potpomognuto učenje)4, čiji je jedan od ciljeva kreiranje baze OER sadržaja koji će pospešiti vezu između akademskog i preduzetničkog znanja. Na projektu učestvuje šest ...
    ... adresi: http://edx.baektel.eu:18010, gde će se registrovati i prijaviti za kreiranje kurseva (Slika 3). Slika 3.Početna strana OpenedXstudia 4. Pretraživanje OER sadržaja U okviru projekta BAEKTEL uspostavljen je sistem platformi koji pored toga što omogućava kreiranje i publikovanje OER sadržaja ...

  • Увођење доменских и семантичких маркера за област рударства у српске електронске речнике

    Иван Обрадовић, Александра Томашевић, Ранка Станковић, Биљана Лазић (2017)
    ... обраде корпуса рударских текстова дат је у Табели 4. 1 http://resource.geosciml.org/vocabulary/earthresourceml/2016 И в ан О б р ад о в и ћ , А л ек с ан д р а Т о м аш ев и ћ , Р ан к а С тан ко в и ћ , Б и љ ан а Л ази ћ 1 5 4Табела 4. Резултати обраде текстова за рударски корпус ...
    ... тролно флотирање бакра, независно флотирање песка. Пример добијених конкорданци дат је на слици 4. Слика 3. Граф за екстракцију колокација уз глагол/именицу из домена Припреме минералних сировина Слика 4. Резултати примене графа са слике 3 над рударским корпусом 5. Закључак Рад на развоју и допуњавању ...
    ... ResourceCategory, UXFCValue, WasteStorage. Ови речници су јавно доступни као RDF и XML датотеке, а постоји и SPARQL приступна тачка за RESTfulAPIs. 4. Опис корпуса рударских текстова Новопредложени маркери значајни су пре свега за екстракцију инфор- мација из корпуса текстова везаних за рударство ...

  • Split-Desktop software for the analysis of fragment size distribution of blasted rock mass

    Milanka Negovanović, Lazar Kričak, Stefan Milanović, Jovan Marković, Nikola Simić, Snežana Ignjatović (2023)
    Drobljenje stena je najvažniji pokazatelj u proceni efekata miniranja pri proizvodnom miniranju u površinskoj eksploataciji. Stepen drobljenja stena ima veliki uticaj na efikasnost daljih operacija utovara, transporta, drobljenja i mlevenja. Optimalno drobljenje stena pri proizvodnom miniranju utiče na smanjenje ukupnih troškova proizvodnje. Stoga je pouzdana procena veličine drobljenja odminirane stenske mase veoma važno pitanje, ne samo u operacijama miniranja, već i u rudarskoj proizvodnji. Za predviđanje distribucije veličine komada odminirane stenske mase postoje različiti empirijski modeli. KUZ-RAM model omogućava ...
    Split-Desktop softver, drobljenje stena, miniranje, analiza, digitalna obrada fotografija

  • Resource-based WordNet Augmentation and Enrichment

    Ranka Stanković, Miljana Mladenović, Ivan Obradović, Marko Vitas, Cvetana Krstev (2018)
    In this paper we present an approach to support production of synsets for SerbianWordNet(SerWN)byadjustingPrincetonWordNet(PWN)synsetsusing several bilingual English-Serbian resources. PWN synset definitions were automatically translated and post-edited, if needed, while candidate literals for Serbian synsets were obtained automatically from a list of translational equivalents compiled form bilingual resources. Preliminary results obtained from a setof1248selectedPWNsynsetsshowthattheproducedSerbiansynsetscontain 4024 literals, out of which 2278 were offered by the system we present in this paper, whereas experts added the remaining 1746. Approximately one half of ...
    WordNet, bilingual resources, term alignment, parallel lists
    ... N access pristup 9 BIMPKO N base baza 7 BILWO N base osnova 6 BILWO N contact kontakt 7 MPRWO N content sadržaj 7 BMPWO V fall padati 4 LWO V fall pasti 4 LWO V enrich obogatiti 3 MLO Table 2: Examples of en-sr term pairs in the final parallel list 3.1. Feasibility assessment of the approach ...
    ... numbers of synsets with expected corresponding equivalents are shown in comparison to those with no equivalent offered, for synsets with 1, 2, 3, 4 and more than 4 literals, respectively. For example, 11,024 (54%) of all synsets had only one literal, and for 3390 (31%) of these synsets the expected Serbian ...
    ... automatic translation, there were no corrections or corrections were moderate. Only 15% definitions had corrections of over 30 characters (Figure 4). Figure 4: Number of corrections in definition during post-editing phase 5. Concluding remarks and future work In this paper we presented an approach to ...

  • An intelligent hybrid system for surface coal mine safety analysis

    Nikola Lilić, Ivan Obradović, Aleksandar Cvjetić (2010)

  • Age of the Jurassic hemipelagic sediments from the Ljubiš area (Zlatibor Mt., SW Serbia)

    Nikita Bragin, Nevenka Đerić (2020)
    Radiolaria, Dinarides, Jurassic, stratigraphy, Serbia
    ... litho- and microfacies analysis, and biostratigraphic analysis of the components of the mélanges. Based on the data obtained, GAWLICK et al. (2017, p. 4) con­ cluded: “The ophiolite and distal continental margin nappes in- cluding different mélanges rest today as polyphase far travelled transported ...
    ... point N 43˚ 37’ 16.0” E 19˚ 50’ 54.5”. The underlying formation is not visible at the surface. A geological column of the section is shown in Fig. 4. The section begins with a two­metre thick unit consisting of calcareous mass transport deposits and turbidites intercalated with dark­grey radiolarites ...
    ... ra­ diolarites intercalated with greenish­grey cherty mudstone. Thin calcarenite beds appear 3 m above the base of this unit. The whole unit (Unit 4) is 8 m thick. Unit 5 comprises 1 m of a grey massive calcarenite (Fig. 5C). The section ends with 12 m of dark green­ ish­grey thin­bedded radiolarites ...

  • 2D geoelectrical resistivity tomography application at the former city waste dump "Ada Huja": Eco-geological problem

    Branislav Sretenović, Filip Arnaut, Ivana Vasiljević, Vesna Cvetkov (2019)
    2D inversion, geoelectrical method, Wenner array, ecology, Ada Huja
    ... construction material. Like the previous section (Figure 4), the decomposing waste is represented as a distinctive laterally changing low resistivity layer. 64 Sretenović B., Arnaut F., Vasiljević I., Cvetkov V. Figure 5 Profile I part 4, model-section of true resistivity values (top), geotechnical ...
    ... some endangered species of birds like the black- headed seagull, big and small cormorant and the white-tailed eagle. Ada Huja, which is located only 4 km from the city center of Belgrade, was under the supervision from the former Federal executive council of SFRY and declared a communal waste dump ...
    ... Primary research was conducted using 32, 51 and 52 electrode arrays according to the accessible length of the scanned unit. Electrode spacing was 4 m, which in the high contrast resistivity subsurface gave out a horizontal resolution of 2 m for the first depth level. The horizontal resolution ...

  • Integrative GHG Assessment in Oil and Gas Industry

    Aleksandar Mirković, Marija Živković, Stevan Đenadić, Darja Lubarda, Chinedu Anyanwa (2023)
    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 ...
    energetska tranzicija, gasovi staklene baste, industrija, nafta i gas
    ... CHu in 2019 were the highest recorded in recent history [4]. It is assumed that human influence has led to the global retrcat of glacicrs since the 1990s and thc retreat of the surface of the Arctic Sea ice between 1979—1988 and 2010—2019 [4]. Global surface tempcratures have risen by 1.09%C from ...
    ... and are based on the latest scientific research and data. Factors used for the case study are presented in Table 4. 56 e3 energija, ekonomija, ekologija, 2023, god. XXV, br. 1 Table 4. Factors used in the model |[8.9| Source : Factors Values CO) || API Compendium 2021 · Global Warming Potentials ...
    ... Results of emissions overvicw per source typc arc presented in Figures 4-7. All values are presented per year and facility in unit tonnes CO»e. 79868,3 60852,0 2020 2021 u Flowstation 2022 mGas plant Figure 4. Flare gas CO»e 2020 u Flowstation 2021 2022 mGas plant Figure 5 ...

  • Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material

    Borislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić (2022)
    Pyrophyllite, with the chemical formula Al2Si4O10(OH)2, is a naturally occurring and abundant van der Waals mineral belonging to the group of phyllosilicates. It is very soft, layered crystal used for sculpting and an excellent electrical and thermal insulator aimed for the operation at high pressure and temperature. Here, for the first time, two-dimensional (2D) pyrophyllite obtained by both mechanical and liquid phase exfoliation is presented and investigated at the nanoscale. The layered structure provides low friction coefficient of around ...
    Atomic force microscopy, Insulating properties, Nanofriction and wear, Natural two dimensional materials, Phyllosilicates, Pyrophyllite

  • Synthesis, characterization, biomolecular interactions, molecular docking, and in vitro and in vivo anticancer activities of novel ruthenium(III) Schiff base complexes

    Milica Međedović, Aleksandar Mijatović, Rada Baošić, Dejan Lazić, Žiko Milanović, Zoran Marković, Jelena Milovanović, Dragana Arsenijević, Bojana Stojanović, Miloš Arsenijević, Marija Milovanović, Biljana Petrović, Ana Rilak Simović (2023)
    In order to discover new anticancer drugs, novel ruthenium(III) complexes [Ru(L)Cl(H2O)], where L is tetradentate Schiff base bis(acetylacetone)ethylendiimine (acacen, 1), bis(benzoylacetone)ethylendiimine (bzacen, 2), (acetylacetone)(benzoylaceton)ethylendiimine (acacbzacen, 3), bis(acetylacetone)propylendiimine (acacpn, 4), bis(benzoylacetone)propylendiimine (bzacpn, 5) or (acetylacetone)(benzoylaceton)propylendiimine (acacbzacpn, 6), were synthesized. The complexes 1 – 6 were characterized by elemental analysis, molar conductometry, and by various spectroscopic techniques, such as UV–Vis, IR, EPR, and ESI-MS. Based on in vitro DNA/BSA experiments, complexes 2 (bzacen) and 5 (bzacpn) with two aromatic rings showed ...
    Inorganic Chemistry, Biochemistry

  • Possibilities of retro-digitalized German-Serbian Mining Dictionary

    Biljana Lazić, Olivera Kitanović, Ivan Obradović (2019)
    U radu će biti prikazan opis procesa retrodigitalizacije dvojezičnog Nemačko-srpskog rudarskog rečnika iz 1923. godine čiji je autor rudarski inženjer Dragutin Stepanović (Степановић, 1923). Ovaj rečnik je zasnovan na skoro 4 000 leksičkih zapisa koji su prevodilački ekvivalenti ili uputnice. Umesto predgovora autor daje uvid u svoje pismo upućeno “Ministru šuma i rudnika” u kome piše o nameri da zabeleži reči koje se koriste u narodu kako bi izbegao upotrebu nemačkih reči. Iako broj odrednica nije toliko veliki, rečnik ...
    elektronska leksikografija

  • Distribution of Uranium and Rare Elements in Radioactive Phosphate-Bearing Anomalies in Southeast Mongolia

    Boris Vakanjac, Neil Rutherford, Vesna Ristić Vakanjac, Tanita Đumić, Suzana Đorđević Milošević (2020)
    Soviet and Mongolian geologists initiated geological exploration of Mongolia for minerals after World War II (1945). These activities lasted until the breakup of the USSR in 1991. As part of this exploration systematic uranium and rare element exploration was undertaken across Mongolia. New exploration resumed in Mongolia at the beginning of the 21st century for a range of ore and mineral deposit styles including uranium, coal, base and precious metals and Fe-ore. This was generally undertaken by Western-based companies. This ...
    uran, radioaktivnost, kreda, retki elementi, fosfati, anomalije, Dornogobi

  • Alpine thermal events in the central Serbo-Macedonian Massif (southeastern Serbia)

    Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Andreas Wetzel, Irena Peytcheva, Albrecht von Quadt (2015)
    General Earth and Planetary Sciences

  • Indexing of textual databases based on lexical resources: A case study for Serbian

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović (2015)
    In this paper we describe an approach to improvement of information retrieval results for large textual databases by pre-indexing documents using bag-of-words and Named Entity Recognition. The approach was applied on a database of geological projects financed by the Republic of Serbia in the last half century. Each document within this database is described by metadata, consisting of several fields such as title, domain, keywords, abstract, geographical location and the like. A bag of words was produced from these ...
    ... used: determining the boundaries of sentences, tokenization, stemming, tagging, recognition of nominal phrases and named entities and, finally, parsing. [4] Finding and ranking of relevant documents on basis of the index is realized using the model of approximate matching, based on the frequency distribution ...
    ... illustrate this: location is one search criterium. When searching with this crterion the weights of some fields are: Municipality 8, County 7, Title 4, Keywords 3, Abstract 2, Appendices 1. Thus, if search is performed with the location criterion Bor, documents in which Bor occurs in Municipality field ...
    ... The query generated in such a way searches the text of the subset of attributes in the database that correspond to the selected criteria of search. 4 The Improved Solution One of the problems of full text search in Serbian is its rich morphology, where the keyword for search is always entered in the ...

  • Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area

    Jovan Kovačević, Maja Todorović, Marina Ćuk, Petar Papić (2016)
    jurski sedimenti, uran, torijum, elementi retkih zemalja, podzemna voda, istočna Srbija

  • Supstitucione reakcije Pd(II) kompleksa sa biološki važnim biomolekulima

    Aleksandar M. Mijatović, Jovana Bogojeski (2017)
    Kompleksi Pd(II), supstitucione reakcije

  • Optimising in electrical energy consumption in mining plants

    Snežana Aleksandrović, Vesna Damnjanović, Ilija Jeftenić (2018)