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Упит dcterms_subject_txt:catchment area

519 items

  • FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina

    Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević (2021)
    ... mineral widely used in various industries due to its specific physical and chemical properties, such as cation exchange capacity (CEC), large surface area, high pore volume, high swelling ability, etc. Intercalation of organic complexes into montmorillonite layers changes surface properties from hydrophilic ...

  • Integrated Stratigraphy of the Middle–Upper Jurassic of the Krížna Nappe, Tatra Mountains

    Renata Jach, Nevenka Đerić, Špela Goričan, Daniela Reháková (2014)
    carbon and oxygen isotopes, radiolarians, calcareous dinoflagellates, radiolarites, Krížna Nappe, West ern Carpathians, Tethys
    ... quartz grains are common, mostly in the parts that are rich in stylolites. Platy limestones Grey, platy limestones occur over the entire study area and represent the lower part of the Jasenina Formation (Mi- chalik ef a/., 1990). Light grey and olive-grey, partly silice- 0us, micritic limestones ...
    ... the radiolarites between the Western Tatra Mountains and eastern part ofthe Tatras (the High Tatra and Belianske Tatra Mountains). In the former area the deposits were laid down on submarinc highs, their slopes and in per- ched basins, whereas in the latter one a thick limestone-marl basinal ...
    ... Carpathians. Minera/ia Slovaca, 28: 151—174. Kozur, H., Mock, R. & OžvoldovaA, L., 1996. New biostratigraphic results in the Meliaticum in its type area around Meliata vil- lage (Slovakia) and their tectonic and paleogeographic signif- icance. Geologische Paldontologische Mitteilungen Inns- bruck ...

  • Tektonske i litostratigrafske karakteristike šireg područja Grivske (Zapadna Srbija)

    Nikola Otašević (2024)
    U ovom radu predstavljene su osnovne geološke karakteristike šireg područja Grivske. U litostratigrafskom pogledu na ovom prostoru prisutne su paleozojske, mezozojske i kenozojske sedimentne, magmatske i metamorfne stene. Tvorevine karbona su predstavljene semimeta-morfisanim tvorevinama.Tvorevine trijaske starosti su predstavljene slojevitim i masivnim krečnjacima, dok su tvorevine jure predstavljeni produktima ofiolitskog melanža. Takođe, prisutne su i tvorevine senona koje su predstavljene masivnim krečnjacima. U neogenoj sukcesiji dominiraju klastiti miocena, dok su u kvartaru zastupljeni različiti tipovi fluvijalnih, deluvijalnih i deluvijalno-proluvijalnih tvorevina. ...
    Arilje, grivska formacija, Drina-Ivanjica, tektonska evolucija

  • Sastav i teksture minerala FeO-Fe2O3-TiO2 sistema u vulkanskim stenama i porfirskim ležištima bakra Borske metalogenetske zone

    Aleksandar Luković (2021)
    Proces obrazovanja minerala iz sistema FeO-Fe2O3-TiO2 u uzorcima vulkanskih stena i porfirskih orudnjenja borske zone prikazan kroz pojavu magnetita/hematita i njihovih alteracija. Minerali ove zone su ispitivani optičkim metodama (odbijena i propuštena svetlost), SEM-EDS/BSD, XRPD, LA-ICP-MS metodama. Rezultati ispitivanja su, pored glavnih Fe – Ti oksida, otkrili prisustvo ferijskog ilmenita u hornblenda andezitima I vulkanske faze kao i magnetita sa većim koncetracija Cr u zoni zlotske magnetne anomalije. Ispitivanje uzoraka iz bušotina porfirskih sistema borske zone otkriva postojanje nekoliko ...
    magnetit, hematit, hemoilmenit, Borska metalogenetska zona, porfirska ležišta
    ... mikroanalize, tačnije: 1) energetsko-disperzivnim spektrometrom (EDS – Energy- Dispersive Spectrometer) firme Oxford Instruments, model X-Max Large Area Analytical Silicon Drift Detector povezanim sa INCAEnergy 350 Microanalysis System; 2) talasno-disperzivnim spektrometrom (WDS – wavelength-dispersive ...
    ... nanometarskih faza, tj. homogenitet na nano-nivou je potvrđen (slika 13c). Tokom ispitivanja upotrebljena je i metoda elektronske difrakcije (Selected Area Electron Diffraction - SAED) (slika 13d,e) kojom je moguće odrediti parametre jedinične ćelije, ali sa manjom preciznošću u odnosu na XPRD metodu ...
    ... Miner. Deposita, 37 (6-7), 541-567. Cioflica, G., Jude, R., Lupulescu, M., Udrescu, C., (1991): The banatitic magmatites of the Lilieci- Liubcova area (Banat). Rev.Roum. Geol., 35, 3-22. Claasen, A. A., (1926): The scattering power of oxygen and iron for X-rays, Proc. Phys. Soc. London 38, 482-487 ...

  • Towards translation of educational resources using GIZA++

    Ivan Obradović, Dalibor Vorkapić, Ranka Stanković, Nikola Vulović, Miladin Kotorčević (2016)
    ... context. That is why the tools for translation of e-learning courses and translation support are nowadays one of the most important topics in this area. E-learning course translation is a very special service that requires specific subject- matter expertise and high technical skills from everyone involved ...

  • Part of Speech Tagging for Serbian language using Natural Language Toolkit

    Ranka Stanković, Boro Milovanović (2020)
    Dok se razvijaju složeni algoritmi za NLP (obrada prirodnog jezika), osnovni zadaci kao što je označavanje ostaju veoma važni i još uvek izazovni. NLTK (Natural Language Toolkit) je moćna Python biblioteka za razvoj programa zasnovanih na NLP-u. Pokušavamo da iskoristimo ovu biblioteku za kreiranje PoS (vrsta reči) oznake za savremeni srpski jezik. Jedanaest različitih modela je kreirano korišćenjem NLTK API-ja za označavanje. Najbolji modeli se transformišu sa Brill tagerom da bi se poboljšala tačnost. Obučili smo modele na označenom ...
    obrada prirodnog jezika, mašinsko učenje, neuronske mreže
    ... Serbian or translated to it. 1984 is a novel by George Orwell, part of MULTEXT-East resources [9]. INTERA (Integrated European language data Repository Area) is a project that produced multilingual corpus on law, health and education [10]. Around the world in 80 days is a novel by Jules Verne annotated ...

  • The influence of alkyl polyglucosides (and highly ethoxylated alcohol boosters) on the phase behavior of a water/toluene/technical alkyl polyethoxylate microemulsion system

    Marija Ilic, Franz-Hubert Haegel, Vesna Pavelkic, Dragan Zlatanovic, Snezana Nikolic-Mandic, Aleksandar Lolic, Zoran Nedic (2016)
    The influence of additives (alkyl polyglucoside, Glucopon 600 CS UP and alcohol ethoxylate C18E100) on the behavior of the water/toluene/Lutensol ON 50 (technical oxoalcohol, i-C10E5) microemulsion system as a function of temperature and composition has been investigated. The phase behavior of the microemulsions was determined by vertical sections through the Gibbs phase prism (fish-like phase diagrams). Alkyl polyglucoside shifts the one phase region to lower temperatures compared with water/toluene/Lutensol ON 50 mixtures. This is contrary to the expectation, considering ...
    микроемулзија, толуен, алкил полиглукозид, оксоалкохол етоксилат, појачивач ефикасности, „fish“ дијаграми
    ... microemulsion coexists with excess water (2Q ). This system exhibits a strong tendency to form liquid crystals. Its phase diagram shows a large area of liquid crystals (LC) surrounded by microemulsion (regions 10 and 1#*). These results are very similar to those reported for the same system ...

  • Inhibitory effect of platinum and ruthenium bipyridyl complexes on porcine pancreatic phospholipase A2

    Tina Kamčeva, Jörg Flemmig, Bojana Damnjanović, Jürgen Arnhold, Aleksandar Mijatović, Marijana Petković (2011)
    Fosfolipaza pankreasa A2 (PLA2) igra važnu ulogu u ćelijskoj homeostazi kao iu procesu karcinogeneze. Efekti metalo-lekova koji se koriste kao hemoterapeutici na aktivnost ovog enzima nisu poznati. U ovom radu, interakcija između PLA2 svinjskog pankreasa i dva odabrana kompleksa prelaznih metala — tetrahloro(bipiridin) platine(IV) ([PtCl4(bipi)]) i dihloro (bipiridin) rutenijum(III)hlorida ([RuCl2(bipi)2) ]Cl)—proučavana je. Laserska desorpcija/jonizacija uz pomoć matriksa, vremenska masa spektrometrija (MALDI-TOF MS) i fluorescentna spektroskopija korišćeni su za analizu aktivnosti enzima u odsustvu i prisustvu metalnih kompleksa i za ...
    Metals and Alloys, Biochemistry, Biomaterials, Biophysics, Chemistry (miscellaneous)
    ... USA) as 10 mg ml�1 chloroform solutions and phospha- tidylcholine extracted from hen’s egg yolk.30 The applied detergent used to increase the surface area and decrease the substrate’s surface concentration, deoxycholic acid (DOC), was purchased from Sigma (Taufkirchen, Germany). Matrices for MALDI-TOF ...
    ... USA) as 10 mg ml7! chloroform solutions and phospha- tidylcholine extracted from hen’s egg yolk.°° The applied detergent used to increase the surface area and decrease the substrate’s surface concentration, deoxycholic acid (DOC), was purchased from Sigma (Taufkirchen, Germany). Matrices for MALDI-TOF ...

  • Геохемијске карактеристике флотацијског јаловишта рудника Грот (југоисточна Србија)

    Božidar Đokić (2012-07-16)
    У дисертацији су анализиране геохемијске карактеристике флотацијскогјаловишта које се налази на највишој надморској висини у Србији. Јаловиште јенастало преграђивањем узводно од Селишког потока. Географске, геолошке игеоморфолошке карактеристике области у којима је смештено највећим делом суутицали на његову морфологију и морфометрију. Јаловиште чини велики, јужни ијугоисточни плато и велика брана. Делови јаловишта су засебно испитивани, азатим и њихова међусобна интеракција и утицаји на окружење.Прикупљени узорци су испитивани рендгенском дифракциономанализом, скенирајућом електронском микроскопијом, рендгенскомфлуоресцентном спектрометријом, гранулометријском и хемијском анализом.Рендгенском дифракционом анализом ...
    флотација, јаловиште, скенирајућа електронско-микроскопскаанализа, рендгенска флуоресцентна спектрометрија, Pb-Zn руда,тешки метали, контаминација
    ... of the Seliski stream. Its morphology and morphometry were influenced mainly by the geographical, geological and geomorphological features of the area of its emplacement. The tailing consists of the large, south and southeast plateaus and the large dam. Parts of the tailing were explored separately ...
    ... ns of Fe, Pb, Cu and As are noticed in the eastern parts of the large plateau, which points to the fact that tailing material deposited in this area was abundant in heavy metals. As far as granulometry is concerned, it can be noticed that aleuritic sand, aleurite and sandy aleurite are located ...
    ... (July-September), Zn (October-December) and Hg (April-June). Grot mine flotation tailing represents unique source of contamination for the wider area as well, but in the same time the mine and the flotation represent the only company in which local inhabitants can find employment. Conservation of ...

  • Геохемијске карактеристике флотацијског јаловишта рудника Грот (југоисточна Србија)

    Božidar Đokić (2012-07-16)
    У дисертацији су анализиране геохемијске карактеристике флотацијскогјаловишта које се налази на највишој надморској висини у Србији. Јаловиште јенастало преграђивањем узводно од Селишког потока. Географске, геолошке игеоморфолошке карактеристике области у којима је смештено највећим делом суутицали на његову морфологију и морфометрију. Јаловиште чини велики, јужни ијугоисточни плато и велика брана. Делови јаловишта су засебно испитивани, азатим и њихова међусобна интеракција и утицаји на окружење.Прикупљени узорци су испитивани рендгенском дифракциономанализом, скенирајућом електронском микроскопијом, рендгенскомфлуоресцентном спектрометријом, гранулометријском и хемијском анализом.Рендгенском дифракционом анализом ...
    флотација, јаловиште, скенирајућа електронско-микроскопскаанализа, рендгенска флуоресцентна спектрометрија, Pb-Zn руда,тешки метали, контаминација
    ... of the Seliski stream. Its morphology and morphometry were influenced mainly by the geographical, geological and geomorphological features of the area of its emplacement. The tailing consists of the large, south and southeast plateaus and the large dam. Parts of the tailing were explored separately ...
    ... ns of Fe, Pb, Cu and As are noticed in the eastern parts of the large plateau, which points to the fact that tailing material deposited in this area was abundant in heavy metals. As far as granulometry is concerned, it can be noticed that aleuritic sand, aleurite and sandy aleurite are located ...
    ... (July-September), Zn (October-December) and Hg (April-June). Grot mine flotation tailing represents unique source of contamination for the wider area as well, but in the same time the mine and the flotation represent the only company in which local inhabitants can find employment. Conservation of ...

  • Efikasnost različitih tipova glina Srbije za adsorpciju metilen plavog

    Maja D. Milošević (2016-12-09)
    Adsorpciona efikasnost različitih uzoraka glina sa lokaliteta Srbije određenaje njihovim tretiranjem različitim koncentracijama rastvora metilen plavog (MP).Detaljna mineraloška karakterizacija ispitivanih glina i rezultati njihove interakcijesa rastvorima MP dobijeni su primenom optičkih, rendgenskih, hemijskih, DTA ispektroskopskih metoda.Na osnovu formiranja MP agregata u izmenljivim pozicijama i površiničestica gline, razlikuju se dva tipa glinovitih minerala: visoko naelektrisani(smektiti) i nisko naelektrisani (kaoliniti). Dimeri se stvaraju na naelektrisanimpovršinama, a granica njihovog razvoja omogućuje determinaciju mineralne vrste.Molekuli MP stoje pod uglom od 21.5o kada se ...
    minerali glina, metilen plavo, kristali metilen plavog, difuznarefleksija, adsorpcija, flokulacija, naelektrisanje slojeva
    ... adsorpcije, pojavile su se studije koje su se bavile poblematikom upotrebe MP-a za određivanje KKI i specifične površine (eng. SSA - specific surface area) kod minerala glina (Hang and Brindley, 1970; Yukselen and Kaya, 2008). Međutim primena MP u ove svrhe jos uvek je pod znakom pitanja. Prema prethodnim ...
    ... izmene određene upotrebom amon acetatne metode (AA) i metode zasićenjem rastvorom metilen plavog zajedno sa specifičnom površinom (specific surface area - SSA) prikazane su u tabeli 15. Uzorci koji su pretežno smetkitskog sastava poseduju visoke KKI vrednosti dok oni koji su kaolinitskog sastava poseduju ...
    ... charge. Soil SciSoc Am J. 55: 1569 - 1576 Aringhieri R., Pardini G., Gispert M. and Solé, A. 1992. Testing a simple methylene blue method for surface area estimation in soils. Agrochimica 36(3): 224 - 232 ASTM. 1984. Standard test method for methylene blue index of clay (C 837- 99). In: 1984 Annual ...

  • Neogena i kvartarna herpetofauna (Anura i Squamata) Srbije : doktorska disertacija

    Dragana D. Đurić (2019)
    U radu je prvi put opisan deo herpetofaune (Anura i Squamata) iz neogenih i kvartarnih lokaliteta Srbije. Obrađeni su lokaliteti Sibnica, Prebreza, Lazarevc, Vračević i Riđake, neogene starosti. Lokaliteti kvartarne starosti su pećine Mala i Velika Balanica, Pešturina, Hadži Prodanova, Baranica, Vrelska pećina i sedimentne ispune fisura u kamenolomima Venčac i Beočin. U radu je prikazana je taksonomska analiza herpetoloških ostataka. Pored taksonomske analize fosilnog materijala dat je kratak geografsko-geološki opis proučavanih lokaliteta, osnovne osteološke karakteristike anura i skvamata ...
    paleoherpetofauna, Anura, Squamata, kvartar, pleistocen, neogen, Srbija, paleoekologija, paleoklima
    ... the Upper Pleistocene. The obtained results were also used for the interpretation of the former geographical distribution of herpetofauna in the area of today's Serbia. A detailed morphological analysis showed the great wealth and diversity of paleoherpetofauna during the period from the Lower ...
    ... e. Key words: paleoherpetofauna, Anura, Squamata, Quternary, Pleistocene, Neogene, Serbia, paleoecology, paleoclimate. Scientific area: Geo-sciences Scientific subfield: Palaeontology UDC number: 56.012.2(497.11)(043.3) 56.017(497.11)(043.3) SADRŽAJ 1.UVOD .... ...
    ... postfrontalis. baziparasfenoidale: aanf – foramen anterior (nerve abducens), bpp – processus basipterygoideus, bsc – crista basisphenoidalae, ca – area centralae, cof – foramen communis, eV4 – nervus trigemini foramina, cs – crista sellaris, fs – lamina frontalis, panf – foramen posterior (nerve ...

  • Просторни положај лежишта угља Ђурђевик: геофизичко-геолошки модел

    Синиша Арсеновић (2019)
    Лежиште угља Ђурђевик представља источни део Бановићког угљеног басена и припада северној страни босанске офиолитске зоне унутрашњих Динарида у чији састав улазе стене палеозојске, мезозојске и кенозојске старости. Језерска доњомиоценска угљоносна серија изграђена је од лапоровито-глиновитих седимената са једним слојем мрког угља. Дебљина угљеног слоја креће се у интервалу од 5 до 25 m са генералним правцем пружања СЗ - ЈИ и падом према ЈЗ. У зони обухваћеноj геофизичким истраживањима изражена je пострудна тектоника у виду раседа мањег и ...
    рефлективна сеизмика, 3Д геофизичко-геолошки модел, угаљ, синтетички модел, моделирање
    ... ed area, a depth of coal series was estimated in interval of 320 and 350 m. The aim of the application of geophysical methods was to define the spatial position of the coal and the reflective seismic was chosen as the most suitable method for this research. The synthetic model of the area on ...

  • The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector

    Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković (2020)
    Natural gas is used for the production of almost 20% of total energy today. The natural gas security of the Republic of Serbia is an urgent strategic, political and security issue. Serbia is one of the most vulnerable countries in Southeast Europe, because it only has one supply route. This study is a contribution to efforts to better understand the factors affecting energy security through the implementation of a new methodology based on the fuzzy–AHP synthesis model for measuring ...
    energetska bezbednost, prirodni gas, fazi AHP, AHP višekriterijumska analiza, fazi teorija
    ... analyzing the partial indicators of administrative applicability (A1) and indirect environmental effect (E3) to conduct expert evaluation. Analysts whose area of business interest is closely related to the energy sector of the Republic of Serbia were interviewed. The questionnaire contained the possibility ...
    ... infrastructure and the HIST scenario for the consumption of natural gas. The results were summarized from a questionnaire completed by five analysts whose area of business interest is closely linked to Serbia’s energy sector, the natural gas sector and related legislation. The questionnaire was organized in ...
    ... graphical representation of energy security (ES) for combined scenario 1 (SC1). For this scenario, the value of energy security is for the most part in the area of moderate ES, with a slight shift to the left towards a field that describes dominantly moderate and lower energy security. • Combined scenario 2 ...

  • Keyword-Based Search on Bilingual Digital Libraries

    Ranka Stanković, Cvetana Krstev, Duško Vitas, Nikola Vulović, Olivera Kitanović (2017)
    This paper outlines the main features of Biblisha, a tool that offers various possibilities of enhancing queries submitted to large collections of aligned parallel text residing in bilingual digital library. Biblishsa supports keyword queries as an intuitive way of specifying information needs. The keyword queries initiated, in Serbian or English, can be expanded, both semantically, morphologically and in other language, using different supporting monolingual and bilingual resources. Terminological and lexical resources are of various types, such as wordnets, electronic ...

  • The state and perspective of the natural gas sector in Serbia

    Dejan Ivezić, Marija Živković, Dušan Danilović, Aleksandar Madžarević, Miloš Tanasijević (2016)
    The strategy of long-term energy development of Serbia identifies an increase of share of natural gas in final energy consumption as one of the main aims. Serbia has signed a strategic agreement with the Russian Federation on cooperation in the oil and gas sector, within which the project South Stream pipeline is planned to be realized. In addition, the Republic of Serbia has signed the Treaty that establishes the Energy Community and accepted the obligation to implement the Energy ...
    Consumption, natural gas, scenarios of development

  • Praktikum za vežbe iz Informatike 1

    Ranka Stanković, Ivan Obradović, Olivera Kitanović, Mirjana Banković (2014)
    informatika

  • Оптимизација управљања процесима рекултивације површинских копова угља

    Bojan S. Dimitrijević (2014-05-30)
    Ширење површинске експлоатације минералних сировина а нарочито енергетских ресурсафосилних горива, чине површинске копове угља просторно доминантним објектима великих рударскихбасена како у нас тако и у свету. Експлоатациона активност, прати негативне еколошке утицаје наживотну средину шире околине, што нас обавезује на интегрално планирање, ревитализацију,рекултивацију и уређење нарушеног простора за његово поновно хумано коришћење упостексплоатационом периоду. Постексплоатационо санирање и уређење предела површинских коповаи одлагалишта односно нарушеног простора изазваног рударским радовима и пратећих објеката,представља синтетички мултидисциплинарно-интердисциплинаран веома комплексан вишефазниинжењерски пројектни задатак.У уводном ...
    рекултивација, постексплоатациони предео, површински коп угља,вишеатрибутна анализа, одлучивање, процеси, рекултивационо решење
    ... renewable and non-renewable resources. To this end, the area of the land-reclaimed areas fits into the existing eco-system or it is perhaps altogether or partially its purpose changing for new demands. Key words: land reclamation, post-mining area, coal open pit mine, multi-attribute analysis, decision ...
    ... decision making, processes, land reclamation solution Scientific area: Mining Engineering Narrow scientific area: The exploitation of solid minerals and rock mechanics UDC 004:005.1:311:338.4 502/504:519.863:553.9 620.9:622:622.172/.271/.765 658.286:662.642(043.3) С А Д Р Ж А Ј ...
    ... objects of large mining basins in our country, as well as worldwide. Mining activities are followed by negative environmental influences in a wider area, committing us to the integral planning, revitalization, land reclamation and spatial arrangement of the downgraded areas for the human use in the ...

  • Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals

    Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić (2020)
    As the number of poorly soluble drugs is increasing, nanocrystals have become very interesting due to wide range of application possibilities. Curcumin was used as a model active ingredient in this work. Even though it has many proven positive effects, due to its physicochemical issues, its possibilities have not been fully exploited. The goal of this work was to select optimal conditions for a top-down method for curcumin nanosuspension production, and to perform their comprehensive characterization applying complementary methodologies: ...
    nanocrystal, curcumin, top-down method, wetball milling

  • A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia

    Boban Pavlović, Dejan Ivezić, Marija Živković (2021)
    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 ...
    Proizvodnja električne energije, Obnovljivi izvori energije, Višekriterijumsko odlučivanje, Srbija
    ... be determined following the non-energy criteria that are related to multipurpose water use. Wind energy in the Republic of Serbia can be used in the area with Kosava wind, south Banat, eastern Serbia, Pester, etc. Solar energy potential represents the energy potential that can be used to produce heating ...
    ... power plants — This includes on-shore wind power plants. Wind generators can be installed on unused or infer- tile soil if the basic condition in that area is met. • Biomass and biogas power plants — This includes power plants using biodegradable waste materials from agricul- tural production processes ...