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Упит dcterms_subject_txt:standard SIA V 191

848 items

  • A Mathematical Learning Environment Based on Serbian Language Resources

    Radojičić Marija, Obradović Ivan, Stanković Ranka, Utvić Miloć, Kaplar Sebastijan (2018)
    In recent years, in line with ever growing usage of Information technology, the learning environments are changing. The amount of available learning materials in various forms has increased. These new environments demand comprehensive learning systems, which enable management of the learning corpus with special attention paid to relevant lexical resources. In this paper we present the concept of a Mathematical Learning Environment in Serbian (MLES), which is based on a corpus of mathematical materials and various lexical resources, enabling ...
    mathematical content, text processing, mathematical formulae
    ... these forms 385 basic canonical forms or lemmas were produced, using the procedure described in (Krstev 2015). Among them 191 attributes (A), 174 nouns (N), and 7 verbs (V), such as the noun “ekstremum” (extreme value), represented in the DELAS dictionary of simple forms as ekstremum, N1+DO ...
    ... engineering problems. Figure 3. MLES application 3. GOALS AND CHALLENGES Searching and processing mathematical materials is a complex problem. Standard text processors cannot recognize mathematical texts in a proper way. There is thus a need for developing new and adapting existing processors ...
    ... Linguistics. 17 (3), pp. 380–409. [16] Stanković, R., Obradović, I., Utvić, M., (2014). Developing Termbases for Expert Terminology under the TBX Standard. Natural Language Processing for Serbian - Resources and Applications, University of Belgrade, Faculty of Mathematics pp. 12-26. ...

  • Analysis of a simplified model for determining rock mass oscillation velocity at the Kovilovača open pit

    Suzana Lutovac, Miloš Gligorić, Jelena Majstorović, Luka Crnogorac (2023)
    ... registered rock mass oscillation velocities v, is given, as well as calculated rock mass oscillation velocities from v,, to v,s , for models 1 — 5. Table 3. Review of registered and calculated rock mass oscillation velocities for models 1-5 V, [cm/s| a [cm/s V;s [cm/s] 21.8117 55.3430 55.9536 ...
    ... component, • V, — rock mass oscillation velocity vertical component, • Y, — rock mass oscillation velocity horizontal longitudinal component. Based on that, maximum, i.e., resulting rock mass oscillation velocity V, can be determined using following equation: 2 2 2 V,OS NM +V TV 3 Q) 3. ROCK ...
    ... explosive Q , calculated values of reduced distances R., registered values of rock mass oscillation velocities per components V,, V,, V, and resulted rock mass oscillation velocities v, for blasting I — I, at the total of ten measured points MP, are presented in Table 2. 200 Table 2. Review of blasting ...

  • Threshold-induced correlations in the Random Field Ising Model

    Sanja Janićević, Dragutin Jovković, Lasse Laurson, Đorđe Spasojević (2018)
    Multidisciplinary
    ... disorders R and lattice sizes L, satisfying the collapsing requirements: = = .σ γ σν γ− − V r const V L const, / (19)th /(1 ) th /(1 ) T S T S/ / Here, αint = α + σβδ/γT/S, and γ γ σν= = z1/T S S T/ / , are the standard RFIM exponents3,9, and αint is used because the data are collected in the windows having ...
    ... ˆT i b V T i V b S i b V b S i V(S ; ) ( ; )/ , (S ; ) ( ; ), (4)b x b x x th th th 1 th hold for the duration T(i; Vth) and size ∫= ′ ′ −S i V f t dt V T i V( ; ) ( ) ( ; ) t t ith th th s e , and also for the following types of waiting times: = = = ˆ ˆ ˆ T i b V T i V b T i b V T i V ...
    ... =ζ ζ+ − + −D T b b V b b D T V D b S b V b b D S V( / ; , ) ( ; , ), ( ; , ) ( ; , ), (13)T x w T S x x w x Sth 1 th 1 th 1 th λ λ=ζ +D T b b V b b D T V( / ; , ) ( ; , ), (14)T x w Tint th 1 int thint int λ λ λ λ = = . ζ ζ + + D T b b V b b D T V D T b b V b b D T V ( / ; , ) ( ; , ...

  • Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and reduced distances at “Nepričava“ open pit mine

    Suzana Lutovac, Sanja Bajić, Marina Ravilić, Radmila Gaćina (2015)
    ... operation of relation (10) we obtain: 1 21 1 2 1 ... log log ... N N N N v v vR n R R R v                where we find: 1 2 1 1 1 2 ... log log ... N N N N v v v v n R R R R                (11) By the replacement ...
    ... R1, i = 2, 3, ..., N, from the equation (9), we can take that: 1 1 2,3,..., n i i R v v i N R         from where the relation is obtained: 1 1 2 1 1 2 ... ... n N N N N R v v v v R R R             (10) From the relation (10), we can determine ...
    ... have approximately the same value (Lutovac, 2010) which will be marked (-n), meaning that: v v n R R     (2) Thereby it can be considered that: 0 lim R v v n R R       which means that is: 12 ...

  • Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings

    Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić (2018)
    ... 1%, the oscillation velocity of the soil v will decrease (increase) by approximately n% [8]. Indeed, for h = ± R 100 = ±1%R, from (12) we obtain: v ( R ± R 100 ) ≈ v(R)∓ n· R 100 · v(R) R , v ( R ± R 100 ) ≈ v(R)∓ n· v(R) 100 , v(R ± 1%R) ≈ v(R)∓ n%·v(R). (14) 3.3. Models to Determine the ...
    ... applied to the function v(R) from (7), in the final growth increment, we obtain: v(R + h) ≈ v(R) + h·v′(R + θ·h), 0 < θ < 1. (11) For small absolute values h, from (11), we obtain the relation: v(R + h) ≈ v(R) + h·v′(R). (12) Having (10) in mind, relation (12) becomes: v(R + h) ≈ v(R)− n·h·v(R) R . (13) ...
    ... written in the form: v(R) = K-R™. (7) Then from the Equation (7) for the derivation v’(R), we obtain: o'(R) = —n-K-R-"1, (8) Minerals 2018, 8, 70 5 of 18 which may be written in the form: v′(R) = − n R ·K·R−n. (9) Having in mind Equation (7), from the Equation (9), we obtain: v′(R) = −n·v(R) R ...

  • Early–Middle Jurassic brachiopods from Ponor Mountain, Western Balkan Mountains, Bulgaria; taxonomy, biostratigraphy and occurrence in the context of the early Toarcian Oceanic Anoxic Event

    Barbara V. Radulović, Lubomir S. Metodiev, Neda Motchurova-Dekova, Platon Tchoumatchenco (2023)
    Brachiopods, taxonomy, biostratigraphy, early Toarcian Anoxic Event, Bulgaria

  • Multiword Expressions between the Corpus and the Lexicon: Universality, Idiosyncrasy and the Lexicon-Corpus Interface

    Verginica Barbu Mititelu, Voula Giouli, Kilian Evang, Daniel Zeman, Petya Osenova, Carole Tiberius, Simon Krek, Stella Markantonatou, Ivelina Stoyanova, Ranka Stankovic, Christian Chiarcos (2024)
    Predstavljamo trenutne aktivnosti na definisanju interfejsa leksikona i korpusa koji će služiti kao referenca u prikazu polileksemskih jedinica - višečlanih izraza - (različitih tipova - imenskih, glagolskih, itd.) u specijalizovanim leksikonima i povezivanju ovih unosa sa njihovim pojavljivanjima u korpusima. Konačni cilj je korišćenje ovakvih resursa za automatsko identifikovanje višečlanih izraza u tekstu. Uključivanje nekoliko prirodnih jezika ima za cilj univerzalnost rešenja koje nije usredsređeno na određeni jezik, kao i prilagođavanje idiosinkrazijama. Raspravljaju se izazovi u leksikografskom opisu višerečnih ...
    multiword expression lexicon, corpus, proof-of-concept lexicon encoding

  • Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit

    Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić (2015)
    ... values v(Rs), v(R1), Rs and R1 we take from the table of experimental data, so that we have: c s s Rv v 1 1 R-R v- . (12) In this manner we find a derivative v'(Rc) at point Rc, whereas Rc is given using formula (11). In practice the formula (8) is used so that the values v(Rs) and v(R1) ...
    ... formuli (8) vrednosti v(Rs), v(R1), Rs i R1 uzimamo iz tabele eksperimentalnih podataka, tako da imamo: c s s Rv v 1 1 R-R v- . (12) Na ovaj način nalazimo izvod v'(Rc) u tački Rc, gde je Rc dato pomoću formule (11). U praksi formulu (8) koristimo tako što vrednosti v(Rs) i v(R1) uzimamo iz ...
    ... i.e. n RK R n v . (5) Bearing in mind (4), equation (5) is re- duced to: R vn v (6) From (6) the following is found: v R vn (7) If the derivative v' at some point Rc could not be found then from the equation (7), n can be determined. Value of deriva- tive v' can be determined using ...

  • Photocatalytic Activity of the V2O5 Catalyst toward Selected Pharmaceuticals and Their Mixture: Influence of the Molecular Structure on the Efficiency of the Process

    Sanja J. Armaković, Aleksandra Jovanoski Kostić, Andrijana Bilić, Maria M. Savanović, Nataša Tomić, Aleksandar Kremenović, Maja Šćepanović, Mirjana Grujić-Brojčin, Jovana Ćirković, Stevan Armaković (2023)
    Due to the inability of conventional wastewater treatment procedures to remove organic pharmaceutical pollutants, active pharmaceutical components remain in wastewater and even reach tap water. In terms of pharmaceutical pollutants, the scientific community focuses on -blockers due to their extensive (over)usage and moderately high solubility. In this study, the photocatalytic activity of V2O5 was investigated through the degradation of nadolol (NAD), pindolol (PIN), metoprolol (MET), and their mixture under ultraviolet (UV) irradiation in water. For the preparation of V2O5, facile ...
    DFT analysis, metoprolol, nadolol, nanomaterial characterization, photocatalysis, pindolol, β-blocker
    ... platelet, estimated as 25.47% for V and 74.53% for O, are close to the values of stoichiometric V5»Os. Molecules 2023, 28, 655 5of18 Spectrum 1 V A o A |A o 1 2a 3 4 5 6 7/ B 0 10 Full Scale 4432 cts Cursor:-0.124 KeV (0 cts) keV v Spectrum 2 V o V r - ——— e O 1 2 3 4 5 6 7 8 9 ...
    ... good crystallinity of the V>»Os phase [30—32]. A broad feature at ~1020 cm !1 may be ascribed to surface VOx species on V>Os [33]. R a m a n in te ns it y 100 200 300 400 500 600 700 800 900 1000 1100 1200 Raman shift (cm) Figure 5. Experimental Raman spectrum of V»Os catalyst (after a baseline ...
    ... was used to prepare V»Os powders [14,48]. For that purpose, 0.1 M ammonium metavanadate (NHaVOx) was dissolved in 80 mL of distilled water, resulting, in a pale yellow solution. To adjust the pH of the reaction solution to about 4, the diluted acetic acid (C(HaCOOH/Hx»O = 1:1 v/v) was added drop-wise ...

  • Named Entity Recognition for Distant Reading in ELTeC

    Francesca Frontini, Carmen Brando, Joanna Byszuk, Ioana Galleron, Diana Santos, Ranka Stanković (2020)
    Akcija COST „Udaljeno čitanje za evropsku književnu istoriju“, koja je počela 2017. godine, ima među svojim glavnim ciljevima stvaranje višejezične zbirke evropskih književnih tekstova (ELTeC) otvorenog koda. U ovom radu predstavljamo rad koji je obavljen na ručnom označavanju selekcije ELTeC kolekcije za imenovane entitete, kao i na proceni postojećih alata za prepoznavanje imenovanih entiteta u pogledu njihove sposobnosti da automatski urade takve anotacije. U poslednjem paragrafu se razmatraju zajedničke tačke između ove inicijative i CLARIN-a.
    ... R S ) , p la c e s (L O C ), e v e n ts (E V E N T ) , o rg a n is a tio n s (O R G ) (s e e T a b le 1). H o w e v e r , th is a n n o ta t io n w a s la te r s im p lif ie d to a v o id n e s te d a n n o ta tio n s a n d o v e r la p . D E M O E V E N T L O C O R G O T H E R P E ...
    ... lo c a tio n s in n o v e ls . 6F o r P o r tu g u e s e , tw o se ts o f n o v e l e x c e rp ts a re a v a ila b le : p o r1 c o m p ris e s c a n o n ic a l n o v e ls , in m o d e rn o r to g ra p h y , w h ile p o r2 w a s c re a te d f ro m n o v e ls w ith o ld o rto ...
    ... a g e s a s c o m p a ra b le a s p o s s ib le , th e n o v e ls a re s e le c te d to re p re s e n t a ) v a r io u s ty p e s o f n o v e ls a s to th e i r le n g th : sh o r t s to r ie s , e p ic n o v e ls , b ) fiv e tw e n ty -y e a r t im e p e r io d s w ith ...

  • On the distribution modulo 1 of the sum of powers of a Salem number

    Dragan Stankov (2016)
    It is well known that the sequence of powers of a Salem number θ, modulo 1, is dense in the unit interval, but is not uniformly distributed. Generalizing a result of Dupain, we determine, explicitly, the repartition function of the sequence , where P is a polynomial with integer coefficients and θ is quartic. Also, we consider some examples to illustrate the method of determination.
    Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomials

  • Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija

    Srđan D. Kostić (2013-11-04)
    U ovoj disertaciji, cilj istraživanja bio je određivanje dinamičkih svojstava potresaizazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija.Analiza potresa izvedena je sa dva aspekta – u prvom delu istraživanja izučavane suvremenske serije oscilovanja tla za vreme potresa, a u drugom delu vršena je analizastabilnosti fenomenološkog Baridž-Knopof modela bloka sa oprugom. Vremenske serijeoscilovanja tla proučavane su primenom postupka analize surogat podataka, kao ikorišćenjem metoda analize nelinearnih vremenskih serija (primena teoreme orazvijanju skalarne vremenske serije). Analiza vremenskih serija izvedena je ...
    potres, naponsko stanje, podzemne prostorije, bifurkacije, vremenskaserija, deterministički haos, stohastičnost, perturbacije, vremensko kašnjenje, jačina trenja
    ... i i i i i d V V i 1 2 dt L L           (7.14) što je prvobitno predloženo od strane Ruine [1983]. Promena trenja u zavisnosti od početne brzine V0 (pod dejstvom sile), brzine kretanja bloka V i krutosti opruge, K>0, data je u sledećem obliku:  0 d K V V dt    ...
    ... dinamike ponašanja modela pri periodičnoj promeni parametara and : . [ ( ( )) log ] [ ( / ( ))( log )]2 V 1 t V U V 1 V U 1 t V                   (7.21) gde su (t) i (t) pozitivne periodične funkcije ...
    ... primarnog značaja (za razliku od Diterihovog zakona gde je vreme imalo primarnu ulogu): ( , ) ln ln 0 0 0 c VV V A B V D                  ln c c V V D D                 (4.8) U ovom slučaju, Ruina smatra da bilo ...

  • Nelinearno dinamičko modelovanje potresa izazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija

    Srđan D. Kostić (2013-11-04)
    U ovoj disertaciji, cilj istraživanja bio je određivanje dinamičkih svojstava potresaizazvanih promenom naponskog stanja pri izradi horizontalnih podzemnih prostorija.Analiza potresa izvedena je sa dva aspekta – u prvom delu istraživanja izučavane suvremenske serije oscilovanja tla za vreme potresa, a u drugom delu vršena je analizastabilnosti fenomenološkog Baridž-Knopof modela bloka sa oprugom. Vremenske serijeoscilovanja tla proučavane su primenom postupka analize surogat podataka, kao ikorišćenjem metoda analize nelinearnih vremenskih serija (primena teoreme orazvijanju skalarne vremenske serije). Analiza vremenskih serija izvedena je ...
    potres, naponsko stanje, podzemne prostorije, bifurkacije, vremenskaserija, deterministički haos, stohastičnost, perturbacije, vremensko kašnjenje, jačina trenja
    ... i i i i i d V V i 1 2 dt L L           (7.14) što je prvobitno predloženo od strane Ruine [1983]. Promena trenja u zavisnosti od početne brzine V0 (pod dejstvom sile), brzine kretanja bloka V i krutosti opruge, K>0, data je u sledećem obliku:  0 d K V V dt    ...
    ... dinamike ponašanja modela pri periodičnoj promeni parametara and : . [ ( ( )) log ] [ ( / ( ))( log )]2 V 1 t V U V 1 V U 1 t V                   (7.21) gde su (t) i (t) pozitivne periodične funkcije ...
    ... primarnog značaja (za razliku od Diterihovog zakona gde je vreme imalo primarnu ulogu): ( , ) ln ln 0 0 0 c VV V A B V D                  ln c c V V D D                 (4.8) U ovom slučaju, Ruina smatra da bilo ...

  • Geonasleđe Golije i Peštera

    Ljiljana V. Grujičić-Tešić (2017-09-01)
    Sprovedena istraživanja u ovoj studiji obuhvatila su izdvajanje, opis, evaluaciju i valorizaciju objekata geonasleđa u cilju razvoja istraživane oblasti sa stanovišta geonauka, geoturizma i geoekologije. Na izučavanom području objekti geonasleđa su evidentirani, interpretirani, vrednovani i kategorisani, dat je predlog promocije geoobjekata, i na kraju predložena dopuna inventara objekata geonasleđa Srbije.U protekle četiri godine, na kompleksu geotopa Golije i Peštera istražena su geološka svojstva stena (tip stene, starost, fosilni sadržaj, morfološke i hidrogeološke karakteristike itd.), na osnovu čega je bilo ...
    geodivezitet, geonasleđe, geoturizam, geokonzervacija, Golija, Pešter
    ... RANJIVOST (R) U K U P N A V R E D N O S T ( U V O ) = (3 × N Z ) + ( 2 × D V ) + ( 2 × U V ) + (2 × R ) / 2 ,5 Je di ns tv en os t (J ) R ep re ze nt at iv no st ( R P ) K om pl ek sn os t (K ) O br az ov na v re dn os t (N O ) N ...
    ... ) D V = E K + K F + ( 2 × E F ) Pr ist up ač no st (P R) V id lj iv os t ( V D ) D ru gi o bj ek ti u ok tu že nj u (D R) Tu ris tič ka in fra str uk tu ra (T I) E ko no m sk i p ot en ci ja l (E P ) U V = P R + V D + ...
    ... Ljiljana V. Grujičić - Tešić Doktorska disertacilja GEONASLEĐE GOLIJE I PEŠTERA 85 S li k a 6 2 . S p ru d n a g re d a , S v il a n o v o , k o o rd in a te : 74 45 93 5; 4 78 96 65 , f ot o Lj .G ru jič ić - T eš ić Ljiljana V. Grujičić ...

  • Hydrographic and hydrological characterization of the Vodenička and Rosomačka rivers

    Vesna Ristić Vakanjac, Marina Čokorilo Ilić, Dušan Polomčić, Dragoljub Bajić, Jelena Ratković (2017)
    The Visočica River rises in Bulgaria, on the Berovo Mountain. Its course in Bulgaria is 16.7 km long. It enters Serbia near the village of Donji Krivodol. Up to the village of Pakleštica, or the beginning of Lake Zavoj, its right-bank tributaries are the Krivodolštica, the Vodenička, the Rosomačka and the Dojkinačka. There are no left-bank tributaries. Among the tributaries, water levels and discharges are gauged only on the Dojkinačka River. The Vodenička had also been gauged but only ...
    hydrographic characteristics, river discharge, the Vodenička River, the Kamenička River
    ... границом и то од Бегове куле (1668 м н. в.) на исток и југоисток преко Мучибабе (1719 м н. в.), Големог гувна (1580 м н. в.), Аџијине корије (1716 м н. в.), затим преко врхова са котама 1622 м н. в., 1613 м н. в., 1609 м н. в., 1423 м н. в., до врха са котом 1368 м н. в. код Равништа, где напушта државну ...
    ... (955 м н. в.), Росомачког врха (1236 м н. в.), Игиног вртопа (1276 м н. в.), Чуке (1310 м н. в.), Тупанца (1602 м н. в.), а затим преко Штављака излази на државну границу између Србије и Бугарске код врха Добро јутро. Вододелница даље прати државну границу до Бегове куле (1658 м н. в.). Код врха ...
    ... правцем на југ одвајајући слив Росомачке реке од Воденичке и то преко врха Црнак (1592 м н. в.), затим Мешковог рида (1351 м н. в.), Сенокошке чуке (1328 м н. в.), Љиљка (1326 м н. в.), Градишта (1191 м н. в.) па све до Славиње, где је и ушће Росомачке реке у реку Височицу. Облик слива је издуженог ...

  • Pleistocenski sisari iz jame Propas u Činiglavcima kod Pirota

    Dimitrijević, V., Bogićević Katarina, Gajović, V., Vlastić Stefan (2013)

  • Влияние русских иммигрантов в развитие геологии в Сербии

    Banjac Nenad, Dulić Ivan (2010)

  • An integrated study of thermal treatment effects on the microstructure and magnetic properties of Zn-ferrite nanoparticles

    Antić Bratislav V., Perović Marija, Kremenović Aleksandar, Blanuša Jovan L., Spasojević Vojislav V., Vulić Predrag, Bessais Lotfi, Božin Emil S. (2013)

  • Some models for determination of parameters of the soil oscillation law during blasting operations

    Suzana Lutovac, Dragan Medenica, Branko Gluščević, Rade Tokalić, Čedomir Beljić (2018)
    ... which will be marked ´n, meaning that: ∆v v ∆R R « ´n (7) Thereby it can be considered that: lim∆RÑ0 ∆v v ∆R R “ ´n, which means: dv v dR R “ ´n (8) Equation (8) can be written in the form: dv v “ ´n ¨ dR R , where by integration is obtained: ż dv v “ ´n ¨ ż dR R , namely: logv “ logR´n ...
    ... tics of the rock material, and the type of blasting, the equation of M.A. Sadovskii, where the oscillation velocity v is given in the form of the function, is most frequently used: v “ K ¨ R´n (1) where R represents reduced distance, meaning the distance from the blast site to the monitoring point ...
    ... soil oscillation and consequences that can affect facilities, is used. The equation of M.A. Sadovskii is given in the form: v “ K ¨ R´n “ K ¨ ˆ r 3 ? Q ˙´n (2) where we have: v—velocity of soil oscillation (m/s); K—coefficient conditioned by soil characteristics, as well as blasting conditions, where ...

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    Bojan Dimitrijević, Radmila Gaćina, Bogoljub Vučković (2023)
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    površinska eksploatacija ugalja, lignit, Kolubara, Kostolac, Srbija