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Упит dcterms_subject_txt:Rastvorne soli

521 items

  • Numerical simulation of the Late Jurassic closure of the Vardar Tethys

    Nikola Stanković, Vesna Cvetkov, Vladica Cvetković (2021)
    ... single divergent phase where spreading regime is dominant. Effect of duration and magnitude ofthe second phase on model evolution is also explored. Our so far obtained simulations were able to reproduce the westward obduction and certainextension processes along the active (European) margin, which match ...

  • 2D Numerical Simulation of Intraoceanic Subduction during the Upper Jurassic Closure of the Vardar Tethys

    Nikola Stanković, Vesna Cvetkov, Vladica Cvetković (2020)
    ... single divergent phase where spreading regime is dominant. Effect of duration and magnitude ofthe second phase on model evolution is also explored. Our so far obtained simulations were able to reproduce the westward obduction and certainextension processes along the active (European) margin, which match ...

  • Prilog poznavanju režima i bilansa voda reke Resave

    Marina Mitrašinović, Vesna Ristić Vakanjac, Saša Milanović, Ljiljana Vasić, Dušan Polomčić (2022)
    Sliv Resave zauzima područje između reke Velike Morave i obronaka Kučajsko-beljaničkih planina. Sliv i režim ove reke kontroliše se dvema hidrološkim stanicama: Manastir Manasija (slivno područje u iznosu od 388 km2) i Svilajnac (681 km2). Za potrebe analize režima voda reke Resave i uticaja padavina na formiranje oticaja sa njenog sliva preuzeti su podaci o padavinama sa meteorološke stanice Crni Vrh (1037 m nm) koji odslikava režim gornjeg dela sliva ove reke, i meteorološke stanice Smederevska ...
    Hidrogeološke karakteristike, hidrološke karakteristike, režim voda bilans voda, rijeka Resava

  • Uticaj klimatskih promena na vodne resurse: primer sliv reke Mlave

    Vesna Ristić Vakanjac, Saša Milanović, Ljiljana Vasić, Boris Vakanjac, Saša Bakrač, Radoje Banković, Veljko Marinović (2023)
    Na teritoriji Jugositočne Evrope, pa samim tim i u delu gde živimo (Republika Srbija i Republika Bosna i Hercegovina) za očekivati je da dođe do značajnijeg porasta temperature vazduha u značajnijoj meri, što će imati značajnijeg uticaja na padavine, njihovu unutargodišnju raspodelu, kao i pojavu sve više prisutnih ekstremnih vrednosti (izuzetno sušnih i kišnih godina). Sve ovo će uticati i na sam režim površinskih i podzemnih voda, resursa bez kojih život na ovoj planeti ne bi ni postojao. Da ...

  • A Tel Platform Blending Academic And Entrepreneurial Knowledge

    Ivan Obradović, Ranka Stanković, Jelena Prodanović, Olivera Kitanović (2013)
    ... the life-long learning process of their employees. The platform provides an efficient answer to the main criticism that OER are biased towards the so called "big" languages, as it includes a powerful language support system, which enables the publishing of learning materials in various languages ...
    ... languages within the BAEKTEL platform. This also provides an efficient answer to the main criticism of OER that they are biased towards the so called "big" languages. In order to offer support in expert terminology within the multilingual approach, the BAEKTEL platform provides electronic ...
    ... textual resources (Fig 2). One of the basic lexical resources is the system of morphological dictionaries of Serbian simple words and compounds in the so-called LADL format [8]. Morphological dictionaries in the same format exist for many other languages, including French, English, Greek, Portuguese ...

  • Frequency and Length of Syllables in Serbian

    Marija Radojičić, Biljana Lazić, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Ján Mačutek, Lívia Leššová (2019)
    Basic analyses of several properties of syllables (the rank-frequency distribution, the distribution of length, and the relation between length and frequency) in Serbian is presented. The syllabification algorithm used combines the maximum onset principle and the sonority hierarchy. Results indicate that syllables behave similarly to words as far as mathematical models are concerned, but values of parameters in models for syllables are quite different from those for words.
    frekvencije slogova, dužina slogova, srpski jezik
    ... can be evaluated. Several sonority scales were suggested (Blevins, 1995, p. 210: „[s]uch scales come in a variety of types ... fine- grained vs. not-so-fine-grained“), see e.g. Clements (1990) or Zec (1995). We chose perhaps the simplest one – we distinguish only sonorant and obstruent consonants, with ...
    ... text processing (see e.g. a discussion on this topic in Antić et al., 2006, pp. 118-121). The text under analysis (see Section 3) is pre-processed, so that it does not contain any zero-syllable words. 11 The maximum onset principle implies ...
    ... y significant also in both of these cases). The tendency to favour shorter syllables is obvious also from Table 4. Data from Table 2 were pooled so that each group contained at least 20000 syllables (tokens), and the weighted mean of syllable length (with frequencies serving as the weights; differences ...

  • Хидрогеохемијске карактеристике и квалитет вода слива Требишњице, Република Српска, Босна и Херцеговина

    Dragoslav R. Banjak (2016-08-25)
    Упркос неповољном временском и просторном распореду, воде су најзначајнијиприродни ресурс Источне Херцеговине. Ова чињеница довела је до реализацијепројекта „Вишенамјенског хидросистема Требишњица“, којим је, премаМилановићу (2006), до сада обухваћено: седам хидроелектрана, шестакумулација, шест брана, шест тунела укупне дужине 59,7 km, неколикоприступних тунела, 62,5 km бетонског канала кроз Попово поље, канал крозДабарско (6750 m) и Фатничко поље (2770 m) и систем тунел-канал или цјевоводпрема Дубравама.У почетку са доминантним енергетским предзнаком, концепција јетрансформисана у интегрално рјешење вишенамјенског коришћења и заштитевода и животне ...
    хидрогеохемијски процеси, мултиваријантна статистичкаанализа, инверзно геохемијско моделовање, квалитет воде, употребиљивост водеза наводњавање, слив Требишњице
    ... салинитета (C2) Погодна за наводњавање биљака средње толерантних према соли, на земљиштима средњег интензитета испирања. 750-2250 μmho Вода високог салинитета (C3) Потребан избор биљака високе толерантности према солима, гајених на земљиштима високе дренаже. >2250 μmho Вода врло високог ...
    ... С1 и С2, са аспекта њихових вриједности специфичне електричне проводљивости, што омогућава наводњавање култура мале и умјерене толеранције према соли. На основу вриједности адсорпцијског односа натријума (SAR), могућа је припадност вода проучаваног слива класи S1, коју карактерише низак садржај ...
    ... износи 52,32 mg/dm3. Формирање јона Na+ могуће је дјелимично објаснити растварањем халита, и евентуално седимената са концетрацијом лако растворљиве соли Na2SO4. Хидрокарбонати представљају најважнију макрокомпоненту хемијског састава вода у сливу Требишњице. Њихов садржај варира између 103,1 mg/l ...

  • An Integrated Environment for Management and Exploitation of Linguistic Resources

    Ranka Stanković, Ivan Obradović (2009)
    ... chosen for morphological dictionaries was the so-called LADL format developed within the Labora- toire d'Automatique Documentaire et Linguistique under the guidance of Maurice Gross [1]. Thus the core of the sys- tem consists of the so called DELAS dictionaries of simple words and ...
    ... synonyms for each concept, as well as a definition of the concepts itself. The user then gets the pos- sibility to delete some of these synsets if he/she so wishes, namely in the case he/she decides that they pertain to con- cepts which are not of interest. The query can be further se- mantically expanded ...
    ... morphological and semantic query expansion was in- troduced in the GeolISS search function. Apart from the lexical resources we have mentioned so far, semantic query expansion within GeolISS also relies on a specially devel- oped geological dictionary, which represents a taxonomy with ...

  • Determining seismic hazard in slowly deforming region: Can we gather enough information from karst caves?

    Ана Младеновић, Јелена Ћалић (2021)
    ... Moesianindenter and the tectonic units in-between. Such stress field is shown to be highly heterogeneouseven in this relatively small research area, so local areas of transtension and transpression havealso been very important in controlling the recent fault kinematics in this part of the Carpatho-Balkanides ...

  • Postojeće stanje i budući trendovi u preventivnoj zaštiti podzemnih voda Srbije

    Vladimir Živanović (2022)
    Podzemne vode predstavljaju osnovni, a u mnogim zemljama i jedini resurs za javno vodosnabdevanje stanovništva tako da zaštita podzemnih voda predstavlja bitan preduslov za njihovo dugotrajno i održivo korišćenje. Kako u svetu, tako i u Srbiji, zaštita podzemnih voda se najvećim delom svodi na primenu preventivnih mera zaštite. Kod planiranja zaštite većih prostora sve više se koriste metode za ocenu ranjivosti podzemnih voda. Njihova primena je posebno naglašena u karstnim područjima zato što se tu izdvajaju delovi terena sa ...
    Zaštita podzemnih voda, karte ranjivosti podzemnih voda, karta hazarda, karte rizika od kontaminacije, monitoring podzemnih voda, Srbija

  • Regionalna karakterizacija karstnih podzemnih voda dela centralnog Balkana u funkciji njihovog održivog korišćenja i menadžmenta

    Veljko J. Marinović (2022)
    Karstne podzemne vode koristi oko 700 miliona ljudi na svetu, čime je njihov značaj za svetsko stanovništvo nemerljiv. U sklopu doktorske disertacije vršena su istraživanja i analize karstnih sistema dela centralnog Balkana (Srbije, Crne Gore i Savskog sliva Bosne i Hercegovine), kako bi se evaluirao ovaj dragoceni resurs. Analize su vršene na primerima karstnih sistema vrela Perućac, Seljašnica, Mokra i Mlava (Srbija), Oko Bijele i Rijeka Crnojevića (Crna Gora) i vrelo Bosne (Bosna i Hercegovina), kao i na regionalnom ...
    karstni sistem, podzemna voda, pritisci na kvantitet i kvalitet, menadžment podzemnih vodnih resursa

  • Funkcionisanje i uticaj epikarsta na režim, bilans i kvalitet podzemnih voda istočnog dela karstnog sistema Suve planine

    Branislav Z. Petrović (2020)
    Epikarst je deo karstne izdani koji se nalazi u okviru nadizdanske zone i predstavlja kompleksnu tačku dodira i mešanja nekonsolidovanog materijala sa površine terena, ostataka karbonatnih stena izmenjenih korozivnim delovanjem vode, živog sveta i njihovih ostataka, koja je delimično zasićena podzemnom vodom. Kompletan sud o stepenu razvoja i prisustva epikarsta na nekom krečnjačkom terenu moguće je doneti uz multidisciplinarna i obavezna detaljna hidrogeološka istraživanja. Poligon za sprovedena istraživanja je bio karstni masiv Suve planine, koja u geološkom i geografskom smislu ...
    epikarst, karstni sistem, podzemne vode, procesi samoprečišćavanja, hidrohemijski i mikrobiološki procesi u podzemnoj vodi

  • Mikroelementi u uljnim šejlovima Aleksinca i njihov uticaj na životnu sredinu

    Nikoleta Aleksić (2021)
    ... mikroelemente to bio CaCl2. Rastvori NO3- soli su se pokazali kao efikasniji od rastvora Cl- za procenu mobilnosti elemenata. Od nitratnih soli NH4NO3 se pokazao kao efikasniji za procenu mobilnosti od rastvora NaNO3, zato što NH4+ može da gradi rastvorne komplekse sa PTE. Primenom indeksa za procenu ...
    ... materijale. Takođe, organski elektrolit je zamenjen vodenim elektrolitom. Umesto organskog rastvora Li soli, korišćen je vodeni rastvor Na soli zbog veće dostupnosti i niže cene Na u poređenju sa Li soli. Pretpostavljeni mehanizam hemijske reakcije interkalacije i deinterkalacije Na u i iz purpurina je ...
    ... poboljša provodljivost samog materijala dodavanjem ugljeničnog materijala nakon sinteze ili korišćenjem druge soli cinka ili čak i korišćenjem vodenih rastvora drugih elemenata kao sto su soli litijuma, natrijuma i magnezijuma što bi dalo mogućnost primene ovog materijala i u drugim ekološkim baterijama ...

  • Određivanje zbijenosti starog komunalnog otpada

    Jovana Janković, Dragoslav Rakić, Irena Basarić Ikodinović, Tina Đurić (2021)
    Bez obzira na savremene tretmane komunalnog otpada u svetu, u Srbiji je i dalje najčešći vid odlaganja na komunalne deponije, pa zbijanje otpada predstavlja jednu od ključnih faza formiranja deponije. Na ovaj način znatno se smanjuje zapremina otpada, ubrzava proces degradacije i produžava radni vek deponije. Zbog toga su geotehničke karakteristike komunalnog otpada prilikom zbijanja, veoma bitne kako u fazi projektovanja tako i u fazi izgradnje deponije i optimizacije prostora. Tu se pre svega misli na maksimalnu suvu zapreminsku ...
    komunalni otpad, deponija, Proktorov opit, optimalna vlažnost, maksimalna suva zapreminska težina

  • A Data Driven Approach for Raw Material Terminology

    Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja (2021)
    The research presented in this paper aims at creating a bilingual (sr-en), easily searchable, hypertext, born-digital, corpus-based terminological database of raw material terminology for dictionary production. The approach is based on linking dictionaries related to the raw material domain, both digitally born and printed, into a lexicon structure, aligning terminology from different dictionaries as much as possible. This paper presents the main features of this approach, data used for compilation of the terminological database, the procedure by which it has ...
    sirovine, rudarstvo, terminologija, rečnik, terminološka aplikacija, mobilna aplikacija, digitizacija, leksički podaci, korpusi, otvoreni povezani podaci
    ... corpus of standard Serbian (as reference), in order to calculate the so-called keyness score, which is expected to represent the extent of the frequency difference. Frequency information is a crucial component in human language technology, so the FrAC module includes terminology to capture such information ...
    ... of function words and meaningless words. This, widely accepted, approach for information retrieval is not so successful for knowledge extraction, lexicographic and ter- minological purposes, so we are relying on a combination of syntactic patterns [34,42,68] and statistical association measures for domain ...
    ... component of several terminological phrases, for example, rudar na okresivanju (ripper), rudar na uglju (collier), rudar-podgrad̄ivač (timberman), and so forth. Over the past years, more entries related to raw material were added to SrpMD, which initially contained more than 3000 simple-word entries and ...

  • Keyword Extraction from Parallel Abstracts of Scientific Publications

    Slobodan Beliga, Olivera Kitanović, Ranka Stanković, Sanda Martinčić-Ipšić (2017)
    ... dictionaries of Serbian for NLP have been developing for many years now. In the dictionary of lemmas (DELAS) each lemma is described in full detail so that the dictionary of forms containing all the necessary grammatical information (DELAF) can be generated from it, and subsequently used for various ...
    ... sometimes deriva- tionally related forms of a word to a common base form. Lemmatization is the process of grouping together the inflected forms of a word so they can be ana- lyzed as a single item, identified by the word’s lemma, or a dictionary form. Stemming usually refers to a process that chops off the ...
    ... English, and ∼19% in Serbian that did not appear in the original texts. Keyword Extraction from Parallel Abstracts of Scientific Publications 51 So far, the SBKE method has been tested on longer English Wikipedia texts (with an average length of 5,919 words per text) and Croatian newspaper articles ...

  • Terminology Acquisition and Description Using Lexical Resources and Local Grammars

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić (2015)
    Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...
    ... ries in the same for- mat have been produced for many other lan- guages. In dictionary of lemmas (DELAS) each lem- ma is described in full detail so that a dictionary of forms containing all necessary grammatical information (DELAF) can be generated from it, and subsequently used in various NLP ...
    ... for 33% of words from the existing dictionary there is only one corresponding FST class, for approx- imately 20% of words there are two classes, and so on, whereas for word endings of length 6 there is a single class for as much as 90% of words. In order to facilitate prediction of FST class, a ...
    ... on inflectional class metadata is used. Distinction between inflectional classes based on grammatical categories can be done only to some extent, so implicit knowledge from the existing dictionary of simple words is used to improve prediction. Figure 4: Relation between word endings and ...

  • Unraveling Innerworkings of Magmatic System Beneath the East Pacific Rise 9º50’N

    Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Felix Waldhauser, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Malden R. Nedimović, Juan Pablo Canales, Hélène D. Carton, Javier Escartin, John C. Mutter (2021)
    ... geochemical signal. Collectively, the novel observations suggest that magmatic systems operating beneath the EPR and subaerial volcanoes may not be quite so different. ...

  • Geotehnički efekti razaranja komunalnog otpada različitim postupcima zbijanja

    Jovana M. Janković Pantić (2022)
    Odlaganje otpada na komunalne deponije predstavlja osnovni način zbrinjavanja otpada u Srbiji. Kako bi se prostor za deponovanje materijala racionalno koristio potrebno ga je svakodnevno zbijati sa unapred definisanom količinom vode koja se dodaje. Dobro zbijeni komunalni otpad zauzima manju zapreminu i omogućuje sigurnije skladištenje, pa je korisno prethodno laboratorijski odrediti parametre zbijanja: maksimalnu suvu zapreminsku težinu (dmax) i optimalnu vlažnost (wopt). U Srbiji do sada nisu određivani parametri zbijanja, dok je u svetu primenjivana standardna metoda (Proktorov opit) ...
    komunalna deponija, zbijanje, Proktorov opit, malj sa šiljcima, koeficijent razaranja

  • A WordNet Ontology in Improving Searches of Digital Dialect Dictionary

    Miljana Mladenović, Ranka Stanković, Cvetana Krstev (2017)
    In this paper, we present a method for automatic generation of a digital resource, which connects all indirect synonyms of a dialect term to all indirect synonyms of a corresponding term in the standard language, aiming to improve the search of a digital dialect dictionary. The method uses SWRL rules defined in the Serbian WordNet ontology to identify sets of synonymous words. It also uses e-dictionaries to produce correct lemmas in standard language that users usually employ in searches. ...
    ... dictionaries of Serbian for NLP are being developed for many years now. In the dictionary of lemmas (DELAS) each lemma is de- scribed in full detail so that the dictionary of forms containing all necessary grammatical information (DELAF) can be generated from it, and subsequently used in various NLP ...
    ... dialect lemmas. An e-dictionary of forms consists of a list of entries supplied with their lem- mas, morphosyntactic, semantic and other information, so it is possible to attach lemma for all inflected forms in the dialect dictionary that match a form in mor- phological e-dictionary. After separation ...
    ... equivalent synonymous words in the dialect. 5 Evaluation The evaluation of the proposed method can be observed as the evaluation of a classification task, so we have performed an estimation of the accuracy of pair- ing the digital dictionary entries with the standard language entries comparing results obtained ...