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Упит dcterms_subject_txt:ležišta soli

604 items

  • 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 ...
    ... genitive case and a prepositional phrase (as in case 4b); e.g. priprema ležišta za otkopavanje ‘deposit preparation for min- ing’. b. NNgiNgiNgi - a noun followed by three nouns/adjectives in the genitive case; e.g. istraživanje ležišta mineralnih sirovina ‘ex- ploration of mineral deposits’. c. NprepNpNgi ...
    ... 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 ...

  • 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 ...

  • Pre-failure deformation monitoring as rockfall prediction tool

    Miloš Marjanović, Biljana Abolmasov, Zoran Berisavljević, Marko Pejić, Petko Vranić (2021)
    General Engineering
    ... iteratively per each scanning/imaging sequence. Conveniently their strata resemble the flysch sequence we have been dealing with in our case study, so their experience was inspiring. They conclude that smaller events, do not leave clear footprints (scars, faces) as large events at specified scale ...
    ... at the site or in its vicinity, the formation has moderately gentle bedding (40-45°) that is dipping towards NNE. Jointing is relatively regular, so the entire rock is split into prismatic to tabular blocks. The subject road cut has been elaborated in various aspects throughout the years as its ...
    ... addition to X,Y,Z and reflection intensity (I) information, it is possible to extract color information of each point. This scanner has such features, so each point in the cloud is provided with X,Y,Z,I,R,G,B information, but R,G,B values can be also collected by using external, High-Definition cameras ...

  • Investigation of quantitative indicators of anisotropy based on longitudinal elastic waves propagation velocities with uncertainty

    Miloš Gligorić, Jelena Majstorović, Suzana Lutovac (2018)
    ... Gligorić M., Majstorović J., Lutovac S. several times per second because of its shortness, so this method is called impulse method. Elastic waves in rock or sample are representing deformation propagation, so depending of type of deformations, waves of different types can be caused: a) longitudinal ...
    ... as adverse weather conditions, inaccessible field and inexperience of workers. Due to these problems, sometimes the results of measurements are not so accurate and precise. Presence of vague and imprecise data is the basic indicator of uncertainty. In order to overcome these problems it is necessary ...

  • Konceptualni model hidrogeotermalnog sistema šire okoline Brusa - geološki, geofizički i hidrogeološki uslovi / Conceptual model of hydrothermal system of Brus area - geological, geophysical and hydrogeological condition

    Dejan Milenić, Ana Vranješ, Marinko Toljić, Ivana Vasiljević, Natalija Radosavljević, Matija Ognjanović (2024)
    Na širem području Brusa izvedena su naučna multidisciplinarna istraživanja za potrebe ocene geotermalnog potencijala sa zadatkom de9inisanja uslova formiranja geotermalnih i termomineralnih resursa. Interpretacijom podataka zaključeno je da je na predmetnom terenu formiran "hibridni" hidrogeotermalni sistem, koji sadrži elemente sistema u rov-strukturi i elemente konvektivnog hidrogeotermalnog sistema sa rezervoarom u pokrivaču granitoidne intruzije. Sistem čine dva nezavisna hidrogeotermalna rezervoara. Prvi rezervoar formiran je u gornjokrednim krečnjacima na dubini od oko 1550 m. Maksimalne prognozne temperature hidrogeotermalnih resursa u krečnjačkom ...
    hidrogeotermalni sistem, gornjokredni krečnjaci, trijaski mermeri, Brus

  • Concepts for Improving Machine Learning Based Landslide Assessment

    Miloš Marjanović, Mileva Samardžić Petrović, Biljana Abolmasov, Uroš Đurić (2019)
    Katastar klizišta, Podložnost, Hazard, Mašinsko učenje, Uzorkovanje, Validacija

  • 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

  • Design and drilling of wells in formations with high pressure

    Vojin Solomun (2024)
    Objectives of this Thesis are to: - Develop an awareness of the challenges presented from elevated temperatures and pressures in well construction. - Learn the key differences between ―normal‖ condition wells and HPHT wells. - Understand some of the indicators of thermal- and pressure-related problems. - Understand the responses which may be made to mitigate high pressure and high temperature ,,HPHT‘‘ challenges while drilling wells. HPHT wells are an unavoidable consequence of the ever expanding search for oil and gas resources around the world. As wells are ...
    HPHT, well, challenges, design, oil and gas
    ... necessary so that water can be added to the system to prevent dehydration of the fluid (picture 6.10). This volume of water added is to replace the volume lost by evaporation and should not be used when determining product concentrations. Determining evaporation rates for Oil mud is necessary so that ...
    ... selection. Qualification Criteria - Equipment qualification becomes more critical in Tier II and Tier III conditions. As conditions become more severe, so the analysis required for the specifications of the applications during the life of the well becomes more demanding. Costs and operating ranges can ...
    ... Alloy 625 clad steel (Inconel) will be an unacceptable solution in the future, because the simple mass of steel to contain such high pressures would be so large that it would surpass the weight limits on most offshore platforms. 20 4. GEOLOGY 4.1 HPHT Geology Challenges One HPHT definition is ...

  • Osnovi hidrogeologije

    Petar Dokmanović (2021)
    hidrogeologija, atmosferska voda, površinske vode, podzemne vode, vodni bilans, poroznost stena
    ... apsorbuju iz vode. Migrativnost u PV mu je niska, upravo zbog lake adsorpcije od strane glina. U PV dospeva rastvaranjem soli kalijuma (koje učestvuju u građi sonih ležišta) i kalijumovih feldspata magmatskih stena. U malo-mineralizovanim PV, maksimalne koncentracije ovog jona su do 10% u odnosu ...
    ... snižava površinski napon, pa time i visinu kapilarnog podizanja. Povećanje koncentracije soli proizvodi rast napona, pa se mineralizovane vode podižu više od malomineralizovanih. Kada je u pitanju sastav soli, rastvor NaCl se, na primer, podiže više od rastvora Na2SO4, iste koncentracije. Tabela ...
    ... urbanih zona, saobraćajnica i dr. • Ocena uslova ovodnjenosti ležišta mineralnih sirovina, prognoza priliva i projektovanje sistema za odbranu od PV, zbrinjavanje nekvalitetnih rudničkih voda • Hidrogeohemijska prospekcija ležišta mineralnih sirovina. • Ocena rezervi mineralnih voda, sa ciljem ...

  • A Twitter Corpus and Lexicon for Abusive Speech Detection in Serbian

    Danka Jokić, Ranka Stanković, Cvetana Krstev, Branislava Šandrih (2021)
    Uvredljivi govor na društvenim medijima, uključujući psovke, pogrdni govor i govor mržnje, dostigao je nivo pandemije. Sistem koji bi bio u stanju da detektuje takve tekstove mogao bi da pomogne da internet i društveni mediji postanu bolji virtuelni prostor sa više poštovanja. Istraživanja i komercijalna primena u ovoj oblasti do sada su bili fokusirani uglavnom na engleski jezik. Ovaj rad predstavlja rad na izgradnji AbCoSER-a, prvog korpusa uvredljivog govora na srpskom jeziku. Korpus se sastoji od 6.436 ručno označenih ...
    uvredljivi jezik, govor mržnje, srpski, tviter, leksikon, korpus
    ... could help in making the Internet and social media a better and more respectful virtual space. Research and commercial application in this area were so far focused mainly on the English language. This paper presents the work on building AbCoSER, the first corpus of abusive speech in Serbian. The corpus ...
    ... Twitter social network. Tweets from user timelines of 111 Twitter accounts were gathered and annotated by ten independent annotators working in pairs so that each tweet was annotated by two independent annotators while one supervising annotator resolved inconsistent annotations. Related work is given ...
    ... explicit expressions of abuse words used in the search [5], with the user timeline collection approach one must be careful when training the classifier so that it does not learn the writing style of a user instead of learning to detect the abusive messages [47]. In this work, the combined methodology is ...

  • Proračun recirkulacionih pumpi u postrojenju za odsumporavanje dimnih gasova ,,TENT B"

    Tomislav Trpković (2024)
    Predmet ovog rada baziraće se na proračunu i usvajanju mašinskih instalacija potrebnih za nesmetano funkcionisanje sistema dve međusobno povezane celine Absorber - Pumpna stanica, preko FRP ( Fiberglass Reinforced Plastic) cevovoda kojim se odvija transport suspenzije krečnjaka neophodnog u samom procesu odsumporavanja dimnih gasova. Pored tehničkog opisa same tehnologije koja uključuje tri objekta: Absorber, Pumpna Stanica i cevovod, glavni deo rada odnosiće se na proračun i usvajanje mašinskih instalacija koji uključuju recirkulacione radijalne centrifugalne pumpe i cevovode kojima ...
    postrojenje za odsumporavanje dimnih gasova, termoelektrana, pumpna stanica, FRP cevovod, Absorber, transport suspenzije gipsa, prirubnica, ventil, potisni cevovod, usisni cevovod
    ... sa reagensom ili sorbentom u suspenziji. Hlorovodonik (HCI) takođe se apsorbuje i neutralizuje reagujući sa krečnjakom, stvarajući rastvorljive soli ı dovodeći do akumulacije Jona hlorida u procesnoj suspenziji. Nakon toga, prečišćeni dimni gas prolazi kroz eliminator kapi kako bi se uklonile ...
    ... ugušćenje suspenzije gipsa se uklanja iz procesa ı pretvara u otpadnu vodu. Ovo se radi kako bi se sprečilo preterano nakupljanje 40 korozivnih soli hlorida i čestica u samoj suspenziji koja se koristi u procesu odsumporavanja. Priprema suspenzije krečnjaka se obavlja u postrojenju za mlevenje ...
    ... kontrolisati emisije sumpora radi smanjenja negativnih uticaja na ekologiju. Sumpor (S) se može naći u gorivu u tri različita oblika: • Organski oblik (So): U ovom obliku, sumpor je vezan sa ugljenikom, vodonikom, kiseonikom i azotom, formirajući složena organska jedinjenja. • Piritni oblik (Sp): Sumpor ...

  • Geotehnički uslovi izgradnje tunela „Debelo brdo“ na autoputu E-80 Niš - Pločnik

    Dragoslav Rakić, Radojica Lapčević, Irena Basarić Ikodinović, Dragan Lukić (2022)
    Tunel „Debelo brdo“ nazvan je po najizraženijem relјefnom obliku na ovoj drugoj deonici autoputa E-80 Niš – Pločnik. Osnovnu geološku građu na lokaciji tunela čini Mio-Plioceni kompleks heterogenog litološkog sastava. Izgradnja tunela je predviđena delom u otvorenom iskopu dužine 240 m, a delom sa podzemnim iskopom dužine 190 m. U zoni tunela, padina je okarakterisana kao uslovno stabilna, pa bi neadekvatna zasecanja mogla da izazovu klizanja terena. Iz tih razloga, u okviru rada posebno su prikazani geotehnički uslovi izgradnje ...
    Tunel „Debelo brdo“, Geotehnički parametri, Privremene kosine, Šipovi, Podgrada.
    ... excavation 240 m long, and partly with an underground excavation 190 m long. In the tunnel zone, the slope is characterized as conditionally stable, so inadequate cuts could cause sliding of the terrain. For these reasons, the paper presents separately the geotechnical conditions for the construction ...

  • 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
    ... CONTRACTOR doo utvrdili su tri nalazišta zeolitizovanih tufova, od kojih je najveći „Jablanica 1". Potpuno identifikovane rezerve ležišta iznose 1.613.000 t suve rude. Ležište se prostire na oko 8 hektara i predstavlja sloj od zeolita, prosečne debljine oko 18,5 m. Ruda je različitog kvaliteta, a samim ...
    ... tržišnoj ceni mineralnih sirovina i gotovih proizvoda. 20 U ležištu sa obronaka Jastrebca javljaju se dva tipa tufa: beli masivni tuf i trakasti sivi do tamno sivi peskoviti tuf. Svetlo beli tufovi grade najveći deo ležišta i nalaze se u gornjem sloju, dok su peskoviti tufovi u bazalnom delu ...
    ... ali i druge katjone i anjonske grupe. Značajno je da se zeoliti mogu regenerisati i koristiti u toku više cikličnih procesa. Obradom sa rastvorima soli, kiselina i alkalija, mogu se modifikovati, kako bi se njihova svojstva prilagodila rešavanju postavljenih zadataka (Majstorović- Necković, 2015) ...

  • Depth estimation of archeological objects using Euler 3D deconvolution of magnetic data

    Vesna Cvetkov, Ilija Vasiljević, Mirko Petković (2015)

  • Korelacija magnetnog susceptibiliteta i sadržaja metala u flotacijskom jalovištu

    Filip Abramović, Vesna Cvetkov, Aco Ilić, Dragana Životić (2022)
    Procena metala u rudama, jalovištu i zemljištu se tradicionalno određuje hemijskim metodama kao što su Rengen fluorescentna analiza (XRF), Instrumentalna neutronska aktivaciona analiza (INAA) i Masena spektrometrija induktivno spregnute plazme (ICP-MS). Neke od pomenutih metoda su veoma zahtevne i skupe, te se nametnula potreba ka traženju jeftinijeg alata za brzu procenu prisustva pojedinih metala. Tokom poslednjih nekoliko decenija, mnoge studije su pokazale da su magnetna merenja dovoljno osetljiva da detektuju magnetni signal feromagnetnih materijala, a samim tim i metala ...
    flotacijsko jalovište, makroelementi, magnetna merenja

  • Freeze-dried nanocrystal dispersion of novel deuterated pyrazoloquinolinone ligand (DK-I-56-1): Process parameters and lyoprotectant selection through the stability study

    Jelena R. Mitrović, Maja Bjelošević Žiberna, Aleksandar Vukadinović, Daniel E. Knutson, Dishary Sharmin, Aleksandar Kremenović, Pegi Ahlin Grabnar, Odon Planinšek, Dominique Lunter, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2023)
    Recently, nanocrystal dispersions have been considered as a promising formulation strategy to improve the bioavailability of the deuterated pyrazoloquinolinone ligand DK-I-56-1 (7‑methoxy-2-(4‑methoxy-d3-phenyl)-2,5-dihydro-3H-pyrazolo[4,3-c]quinolin-3-one). In the current study, the freeze-drying process (formulation and process parameters) was investigated to improve the storage stability of the previously developed formulation. Different combinations of lyoprotectant (sucrose or trehalose) and bulking agent (mannitol) were varied while formulations were freeze-dried under two conditions (primary drying at -10 or -45 °C). The obtained lyophilizates were characterized in terms ...
    Pharmaceutical Science
    ... strong influence on redispersibility (Jakubowska et al., 2022), so screening of lyoprotectants was the first step of the preliminary study. The formu- lation of interest in this research is intended for parenteral administra- tion, so these additives can be used simultaneously as tonicity agents ...
    ... which was expected despite its frequent use in nanocrystal lyophilization. Mannitol could be considered a bulking agent rather than a cryoprotectant, so its stabiliz- ing effect was not pronounced (Trenkenschuh and Friess, 2021). In contrast, when sucrose alone was used (S 10%), aggregation did ...
    ... bulking agent allows primary drying above Tg' or CFT. Above this temperature, the amorphous material is not rigid enough to support its own weight, so mechanical support from the crystalline component prevents macroscopic collapse (I. Remmele et al., 2012). In our study, despite the high temperature ...

  • The interaction of organoselenium trans-palladium(II) complexes toward small-biomolecules and CT-DNA

    Vera M. Divac, Aleksandar Mijatović, Marina D. Kostić, Jovana Bogojeski (2017)
    Serija organoselenijum trans-paladijum(II) kompleksa 1 (bis(2-(fenilselanilmetil)oksolan)dihloropaladijum(II)), 2 (bis(2-(fenilselanilmetil)oksan)dihloropaladijum(II)) i 3 (bis(2) ,2-dimetil-3-(fenilselanil)oksan)dihloropaladijum(II)) su korišćeni za ispitivanje reaktivnosti ovog specifičnog tipa kompleksa prema različitim bio-molekulima. Ovaj sistem je od posebnog interesa jer se jako malo zna o supstitucionim reakcijam organoselenijum paladijum(II) kompleksa sa trans konfiguracijom. Zamena koordinovanog hlorida sa serijom malih bio-molekula (l-Met, l-His, l-Cis, GSH i 5′-GMP) proučavana je pod uslovima pseudo-prvog reda kao funkcija koncentracije nukleofila i temperature korišćenjem tehnika zaustavljenog toka. Rezultati za proučavane komplekse ukazuju da ...
    Pd(II), Selen, Substitucija, Kinetika, Mehanizam

  • Vebran Web Services for Corpus Query Expansion

    Ranka Stanković, Miloš Utvić (2020)
    U ovom radu se govori o razvoju veb usluga Vebran i njihovoj primeni u poboljšanju pretraživanja korpusa. Veb-servisi Vebran koriste se za konsultovanje spoljnih leksičkih izvora za srpski jezik (uglavnom elektronski morfološki rečnici i srpski Vordnet) i proširivanje korisničkih upita radi dobijanja relevantnijih rezultata iz srpskih korpusa.
    corpus search, web service, Serbian lexical resources, query expansion
    ... includes literary texts of Serbian writers in the XX and XXI centuries, as well as scientific and popular science texts from different domains (natural and so- cial sciences), administrative and general texts. The general texts represent articles from the daily newspapers “Politika”,“Večernje Novosti”, “Danas” ...
    ... homographs. The problems with query expansion in case of multi-word units (MWUs) described in (Утвић et al., 2019) have recently been resolved. Different so- lutions need to be applied for a case where all components of an MWU are the same as their lemmas, e.g. leksički resurs (“lexical resource”) and for ...
    ... part of MWU and some that do not, e.g. jato ptica (“flock of birds”), where the first component inflects and the second does not (as a part of MWU), so generated query should be ([lemma="jato"][word="ptica"]). The solution for both problems includes web service function MWUzaCQP14 which uses SMD to ...