Претрага
811 items
-
МОДЕЛЬНЫЕ ПОДХОДЫ К ОЦЕНКЕ ЖИЗНЕННОГО ЦИКЛА ВСПОМОГАТЕЛЬНЫХ МАШИН НА ПРИМЕРЕ УГОЛЬНОГО КАРЬЕРА В СЕРБИИ, Физико - технические проблемы разработки полезных ископаемых
Д.Я. Крунич, Вујић Слободан, Танасијевић Милош, Димитријевић Бојан, Шубарановић Томислав, С. Илич, С. Максимович (2018)Д.Я. Крунич, Вујић Слободан, Танасијевић Милош, Димитријевић Бојан, Шубарановић Томислав, С. Илич, С. Максимович. "МОДЕЛЬНЫЕ ПОДХОДЫ К ОЦЕНКЕ ЖИЗНЕННОГО ЦИКЛА ВСПОМОГАТЕЛЬНЫХ МАШИН НА ПРИМЕРЕ УГОЛЬНОГО КАРЬЕРА В СЕРБИИ, Физико - технические проблемы разработки полезных ископаемых" in Институт горного дела Сибирского отделения Российской Академии Наук 3, Новосибирск, Россия:Институт горного дела Сибирского отделения Российской Академии Наук (2018): 51-61. https://doi.org/10.15372/FTPRPI20180306
-
Hidrološki i hidraulički mehanizam isticanja vrela Rijeka Crnojevića
Rijeka Crnojevića predstavlja karstno (kraško) vrelo, koje u teritоrijalnom pogledu pripada Opštini Cetinje, u gеоlоškо-tеktоnskоm pоglеdu pripаdа zоni Visоkоg kršа (оblаst stаrе Crnе Gоrе), dоk prema hidrogeološkoj rejonizaciji spаdа u prоstоr Spoljašnjih Dinarida. Izvire iz Obodske (ili Crnojevića) pećine u selu Obod (81 m.n.m.). Voda koja ističe iz Obodske pećine vodi porijeklo od atmosferskih voda, koje se formiraju na prostoru Cetinjskog polja i Dobrskog sela. Vоdе nа оbоdu pоljа pоniru i kreću se uglаvnоm podzemnim kаvеrnаmа i kаnаlimа, nаstаlim ...Golub Ćulafić, Veljko Marinović, Branislav Petrović, Jelena Krstajić. "Hidrološki i hidraulički mehanizam isticanja vrela Rijeka Crnojevića" in KRAS - VEKOVNA NAUČNA INSPIRACIJA, naučni skup posvećen dr Dušanu Gavriloviću profesoru Geografskog fakulteta, Univerzitet u Beogradu - Geografski fakultet (2022)
-
Model predviđanja potresa od miniranja na površinskim kopovima primenom simulacione metode Monte Karlo i fazi logike
Milanka N. Negovanović (2015-06-30)Modeliranje predviđanja potresa tla od miniranja primenom fazi logike i metode MonteKarlo zasnovano je na podacima dobijenim terenskim merenjima potresa uzrokovanihminiranjem. Promenljive modela definisane su analizom parametara bušenja i miniranjaminskih serija, kao i velosigrama izmerenih potresa od miniranja. Iskorišćene suprednosti fazi logike u implementaciji mnogo većeg broja ulaznih i izlaznih veličina zamodeliranje u odnosu na postojeće empirijske modele. Na osnovu identičnih podataka,dobijen je regresioni model predviđanja potresa, da bi se izvršilo testiranje novogmodela. U cilju povećanja pouzdanosti modela predviđanja, ...model, predviđanje potresa, miniranje, površinski kop, Monte Karlo, fazilogika, regresiona analiza, FFT analiza, spektri odziva, pomeraj pukotina... 100 s, produžava se automatski do 1 - 1000 s Mod snimanja Mod maksimalne vrednosti, mod događaja Pretrig 0.5 s Frekvencije uzorkovanja Po izboru: 100, 500, 1000, 2000 ili 4000 Hz Opseg merenja + /- 250 mm/s Rezolucija Bolja od 0.02 mm/s do 31 mm/s, bolja od 0.1 mm/s do 250 mm/s Nivo ...
... Geo mm/s 0.5 1.773 0.149 94.4 3.64 -2 0 2 Channel Input Unit Trig level Pk Diff m/s2 Integ µm Frq(zx) Hz 3 Geo mm/s 0.5 1.746 0.134 81.7 5.04 -2 0 2[s] 120 1381 Wed 3 Nov 2010 02:57:09 12.68205 s / 0.997 kHz 2.16 mm/s at 1.603 s 2 s/div 0 2 4 6 8 10 version 2.11.0 Instrument S/N Event ...
... Integ µm Frq(zx) Hz 2 Geo mm/s 0.5 0.413 0.106 12.3 10.6 -0.8 0 0.8 Channel Input Unit Trig level Pk Diff m/s2 Integ µm Frq(zx) Hz 3 Geo mm/s 0.5 0.355 0.11 15.2 29.3 -0.8 0 0.8[s] 308 1335 Sat 7 Aug 2010 13:05:25 2.655968 s / 0.997 kHz 0.69 mm/s at 0.489 s 0.4 s/div 0.0 0.4 0.8 1.2 1.6 2 ...Milanka N. Negovanović. "Model predviđanja potresa od miniranja na površinskim kopovima primenom simulacione metode Monte Karlo i fazi logike" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-06-30)
-
Model predviđanja potresa od miniranja na površinskim kopovima primenom simulacione metode Monte Karlo i fazi logike
Milanka N. Negovanović (2015-06-30)Modeliranje predviđanja potresa tla od miniranja primenom fazi logike i metode MonteKarlo zasnovano je na podacima dobijenim terenskim merenjima potresa uzrokovanihminiranjem. Promenljive modela definisane su analizom parametara bušenja i miniranjaminskih serija, kao i velosigrama izmerenih potresa od miniranja. Iskorišćene suprednosti fazi logike u implementaciji mnogo većeg broja ulaznih i izlaznih veličina zamodeliranje u odnosu na postojeće empirijske modele. Na osnovu identičnih podataka,dobijen je regresioni model predviđanja potresa, da bi se izvršilo testiranje novogmodela. U cilju povećanja pouzdanosti modela predviđanja, ...model, predviđanje potresa, miniranje, površinski kop, Monte Karlo, fazilogika, regresiona analiza, FFT analiza, spektri odziva, pomeraj pukotina... 100 s, produžava se automatski do 1 - 1000 s Mod snimanja Mod maksimalne vrednosti, mod događaja Pretrig 0.5 s Frekvencije uzorkovanja Po izboru: 100, 500, 1000, 2000 ili 4000 Hz Opseg merenja + /- 250 mm/s Rezolucija Bolja od 0.02 mm/s do 31 mm/s, bolja od 0.1 mm/s do 250 mm/s Nivo ...
... Geo mm/s 0.5 1.773 0.149 94.4 3.64 -2 0 2 Channel Input Unit Trig level Pk Diff m/s2 Integ µm Frq(zx) Hz 3 Geo mm/s 0.5 1.746 0.134 81.7 5.04 -2 0 2[s] 120 1381 Wed 3 Nov 2010 02:57:09 12.68205 s / 0.997 kHz 2.16 mm/s at 1.603 s 2 s/div 0 2 4 6 8 10 version 2.11.0 Instrument S/N Event ...
... Integ µm Frq(zx) Hz 2 Geo mm/s 0.5 0.413 0.106 12.3 10.6 -0.8 0 0.8 Channel Input Unit Trig level Pk Diff m/s2 Integ µm Frq(zx) Hz 3 Geo mm/s 0.5 0.355 0.11 15.2 29.3 -0.8 0 0.8[s] 308 1335 Sat 7 Aug 2010 13:05:25 2.655968 s / 0.997 kHz 0.69 mm/s at 0.489 s 0.4 s/div 0.0 0.4 0.8 1.2 1.6 2 ...Milanka N. Negovanović. "Model predviđanja potresa od miniranja na površinskim kopovima primenom simulacione metode Monte Karlo i fazi logike" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-06-30)
-
Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings
... linstrument S/N 122 Client: Event number 106 - Operation: Miniranje | Date & time Tue 23 May 2006 11:53:26 Location: PK "Nepricava" Reg Length 38/1 kHz Operator: (Vector max (ch 1-3) 3.50 mm/s at 0.068 s Notes: MM-3 Timescale 0.4 s/div Channel 1 Channel Channel Input Geo Input Input Unit mm/s Unit Unit ...
... 70 10 of 18 Table 1. Survey of blasting parameters and measurement results in Majdanpek open pit. No. Blasting r (m) Q (kg) R vt (cm/s) vv (cm/s) vl (cm/s) vrez (cm/s) 1 I 5.0 0.1 10.7722 0.700 0.900 1.150 1.6194 2 I 6.0 0.1 12.9266 0.300 0.925 1.150 1.5060 3 I 7.0 0.1 15.0810 0.255 0.540 0.850 1.0388 ...
... 10 of 18 Table 1. Survey of blasting parameters and measurement results in Majdanpek open pit. No. Blasting r (m) Q (kg) R vte(cm/s) vy (cm/s) — v; (cm/s) Vrez (cm/s) 1 I 5.0 0.1 10.7722 0.700 0.900 1.150 1.6194 2 I 6.0 0.1 12.9266 0.300 0.925 1.150 1.5060 3 I 7.0 0.1 15.0810 0.255 0.540 0.850 1.0388 ...Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić. "Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings" in Minerals, Basel : MDPI AG, Basel, Switzerland (2018). https://doi.org/10.3390/min8020070
-
Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)
... foliation (S;) is presumed to be initially folded into F, and subsequently refolded into F, folds. Away from the hinges of F, folds, the supposed initial foliation S; and foliation S, formed during D, were completely transposed during D, such that the main fabric represents a S//S,/S> composite ...
... and para- sitic folds F. Minor transposition of limbs of F, folds along the axial-plane cleavage S» can also be observed. Late cleavage S, nearly perpendicular to the composite foliation S,/S, is weakly developed. Length of hammer ca. 60 cm. b Micaschists in the western part of the Lower Complex ...
... south-western quadrant (S»; Fig. 4b). This fabric is pre- dominantly formed by flattened quartz-feldspar aggregates and biotite. The earlier foliation S, is preserved only at the hinges of large-scale (Dm to km) isoclinal recumbent folds F». In these hinge zones, S, is often folded into metre-size ...Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Richard Spikings, Andreas Wetzel. "Evidence of Variscan and Alpine tectonics in the structural and thermochronological record of the central Serbo-Macedonian Massif (south-eastern Serbia)" in International Journal of Earth Sciences, Springer Science and Business Media LLC (2016). https://doi.org/10.1007/s00531-016-1380-6
-
Groundwaters of the "Valjevo karst" area (Western Serbia)
Petar Dokmanović, Veljko Marinović (2021)“Ваљевски карст” је подручје кoje заузима површину од око 780 km2, док откривени кречњак чини око 330 km2. Припада Унутрашњим Динаридима западне Србије. У литостратиграфском погледу доминирају карстификовани кречњаци средњег и горњег тријаса у којима су формиране карстне издани. Анализирани су и систематизовани доступни подаци хидрогеолошких и других релевантних истраживања. Приказана је разграната мрежа траса подземних вода између понора и дренажних пунктова, као и главне карактеристике шеснаест карстних врела (или „разбијених“ дренажних зона) и девет (група) бунара, подељених ...Petar Dokmanović, Veljko Marinović. "Groundwaters of the "Valjevo karst" area (Western Serbia)" in Geoloski anali Balkanskoga poluostrva (Annales geologiques de la Peninsule balkanique), University of Belgrade, Faculty of Mining and Geology (2021). https://doi.org/10.2298/GABP210311002D
-
Some models for determination of parameters of the soil oscillation law during blasting operations
... Table 1. Survey of blasting parameters and measurement results in the Veliki Krivelj Open Pit. No. Blasting r (m) Q (kg) R vt (cm/s) vv (cm/s) vl (cm/s) vrez (cm/s) 1 I 5.0 0.1 10.7722 0.4200 0.9300 1.1400 1.5300 2 I 6.0 0.1 12.9266 0.3000 0.6000 1.0500 1.2460 3 I 7.0 0.1 15.0810 0.2400 0.4000 0 ...
... are presented in Table 2. Table 2. Survey of recorded and calculated soil oscillation velocities for models 1, 2, and 3. No. R vr (cm/s) vi1 (cm/s) vi2 (cm/s) vi3 (cm/s) vr ´ vi1 vr ´ vi2 vr ´ vi3 1 10.7722 1.5300 1.4737 1.5300 1.4990 0.0563 0.0000 0.0310 2 12.9266 1.2460 1.1256 1.1551 1.1404 0.1204 ...
... are presented in Table 2. Table 2. Survey of recorded and calculated soil oscillation velocities for models 1, 2, and 3. No. R vy (cm/s) Viz (cm/s) Vj2 (cm/s) v33 (cm/s) Vr — Vit Vr — Vio Vr — Vi3 1 10.7722 1.5300 1.4737 1.5300 1.4990 0.0563 0.0000 0.0310 2 12.9266 1.2460 1.1256 1.1551 1.1404 0.1204 0 ...Suzana Lutovac, Dragan Medenica, Branko Gluščević, Rade Tokalić, Čedomir Beljić. "Some models for determination of parameters of the soil oscillation law during blasting operations" in Energies, Basel, Switzerland : MDPI (2018). https://doi.org/10.3390/en9080617
-
Microscopical characterization of carbon materials derived from coal and petroleum and their interaction phenomena on making steel electrodes, anodes and cathodes blocks
Predeanu G., Panaitescu C., Balanescu M., Bieg G., Gómez Borrego A., Diez M.A., Kwiecińska B., Marques M., Mastalerz M., Misz-Kennan M., Pusz S., Suárez Ruiz I., Rodriguez S., Singh A.K., Varma A., Zdravkov A., Životić Dragana (2013)Predeanu G., Panaitescu C., Balanescu M., Bieg G., Gómez Borrego A., Diez M.A., Kwiecińska B., Marques M., Mastalerz M., Misz-Kennan M., Pusz S., Suárez Ruiz I., Rodriguez S., Singh A.K., Varma A., Zdravkov A., Životić Dragana. "Microscopical characterization of carbon materials derived from coal and petroleum and their interaction phenomena on making steel electrodes, anodes and cathodes blocks" in 64rd Annual Meeting of the International Committee for Coal and Organic Petrology (ICCP) Book of Abstracts, Sosnowiec, Poland:University of Silesia, Sosnowiec (2013): 108-109
-
Hidrogeohemijska valorizacija esencijalnih mikroelemenata mineralnih voda Srbije
Jana S. Stojković (2013-09-25)Mineralne vode još od davnina privlače pažnju ljudi i to kako u pogledu istraživanja iproučavanja, tako i u pogledu njihovog iskorišćavanja. Naročito je važno poznavanjesadržaja mikroelemenata u njima, jer su to komponente njihovog hemijskog sastavakoje ih odvajaju od tzv. „običnih“ malomineralizovanih voda.U ovom radu proučavani su odabrani esencijalni mikroelementi (fluor, bor, litijum,kalijum, stroncijum i silicijum), u mineralnim vodama Srbije, pri čemu je analiziranopreko 130 uzoraka mineralnih voda iz različitih geoloških sredina, to jest hidrogeološkihrejona. Cilj ovog istraživanja bio je ...esencijalni mikroelementi, faktori migracije, zakonomernosti rasprostranjenja, hidrogeohemijski procesi, multivarijantna statistička analiza, mineralne vode Srbije... Jana S. Stojković Doktorska disertacija 98 T a b el a 3 .2 . K o ef ic ij en ti k o re la ci je 1 4 p ar am et ar a h em ij sk o g s as ta v a is p it iv an ih m in er al n ih v o d a. T p H C a M g N a K C l H C O 3 S O 4 S i F B L i S r T ...
... Jana S. Stojković Doktorska disertacija 206 Jana S. Stojković Doktorska disertacija 207 Jana S. Stojković Doktorska disertacija 208 Jana S. Stojković Doktorska disertacija 209 Jana S. Stojković Doktorska ...
... Jana S. Stojković Doktorska disertacija 211 Jana S. Stojković Doktorska disertacija 212 Jana S. Stojković Doktorska disertacija 213 Jana S. Stojković Doktorska disertacija 214 Jana S. Stojković Doktorska ...Jana S. Stojković. "Hidrogeohemijska valorizacija esencijalnih mikroelemenata mineralnih voda Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-09-25)
-
Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation
kontinentalna tektonika: kompresija, kontinentalna tektonika: ekstenzija, kontinentalna tektonika: transkurentni i transformni rasedi, pukotine, rasedi, zone snažnih deformacija, kinematika deformacija kore i omotača, teorijska mehanika, modelovanje... ][ ∂s ∂ X ∂s ∂Y ∂t ∂ X ∂t ∂Y ] (A5) We do not have access to ∂s ∂X but can compute ∂X ∂s using the shape functions. These two gradients are related as (Hughes 2012): ∂s ∂X = (∂X ∂s )−1 (A6) Such that the displacement gradient becomes: ∂u ∂X = [ ∂u ∂s ∂u ∂t ∂v ∂s ∂v ∂t ][ ...
... ⎢ ⎣ s − 1 s − 1 1 + s 1 − s ⎤ ⎥ ⎥ ⎥ ⎦ ∂N ∂t |0,0 = 1 4 ⎡ ⎢ ⎢ ⎢ ⎣ −1 −1 1 1 ⎤ ⎥ ⎥ ⎥ ⎦ (A10) such that: ∂u ∂s |0,0 = 1 4 [ −u1 + u2 + u3 − u4 −u1 − u2 + u3 + u4 −v1 + v2 + v3 − v4 −v1 − v2 + v3 + v4 ] (A11) Subsequently, using eq. (A1), ∂X ∂s is: ∂X ∂s = [ Xn ...
... functions N: u(s, t) = unN(s, t) (A3) where u = [ u v ]T and nodal displacements are: un = [ u1 u2 u3 u4 v1 v2 v3 v4 ] (A4) Our main purpose here is to determine ∂u ∂X , that we can write as: ∂u ∂X = [ ∂u ∂ X ∂u ∂Y ∂v ∂ X ∂v ∂Y ] = ∂u ∂s ∂s ∂X = [ ∂u ∂s ∂u ∂t ∂v ∂s ∂v ∂t ...Taco Broerse, Nemanja Krstekanić, Cor Kasbergen, Ernst Willingshofer. "Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation" in Geophysical Journal International, Oxford University Press (OUP) (2021). https://doi.org/10.1093/gji/ggab120
-
Microscopical characterization of carbon materials derived from coal and petroleum and their interaction phenomena in making steel electrodes, anodes and cathode blocks for the microscopy of carbon materials working group of the ICCP
Predeanu G., Panaitescu C., Bălănescu M., Bieg G., Gómez Borrego A., Diez M.A., Hackley P., Kwiecińska B., Marques M., Mastalerz M., Misz-Kennan M., Pusz S., Suárez Ruiz I., Rodrigues S., Singh A.K., Varma A.K., Zdravkov A., Životić Dragana (2015)Predeanu G., Panaitescu C., Bălănescu M., Bieg G., Gómez Borrego A., Diez M.A., Hackley P., Kwiecińska B., Marques M., Mastalerz M., Misz-Kennan M., Pusz S., Suárez Ruiz I., Rodrigues S., Singh A.K., Varma A.K., Zdravkov A., Životić Dragana. "Microscopical characterization of carbon materials derived from coal and petroleum and their interaction phenomena in making steel electrodes, anodes and cathode blocks for the microscopy of carbon materials working group of the ICCP" in International Journal of Coal Geology 139, Amsterdam, Netherlands:Elsevier BV (2015): 63-79. https://doi.org/10.1016/j.coal.2014.07.011
-
Održivo korišćenje mađarsko-srpskih međugraničnih vodnih tela
Dušan Polomčić, Zoran Stevanović, Saša Milanović, Stanko Sorajić, Bojan Hajdin, Željko Kljajić (2010)... Polomcic D, Milanovic S, Hajdin B, Sorajic S, Kljajic Z, 2008: Sustainable development of Hungarian — Serbian transboundary aquifer (SUDEHSTRA), Final Report, Fac. Min. Geol., Belgrade [9] Stevanovié Z., Kozak P., Lazi¢é M., Szanyi J., Poloméi¢ D., Kovacs B., Torok J., Milanovié S., Hajdin B., 2008a: ...
... 223-235 231 S J Z I Slika 9: Raspored pijezometarskih nivoa u profilma sever - jug i zapad - istok Tabela 3: Bilans podzemnih voda na istražnom podru ju Infiltracija padavina Evapotrans- piracija GHB Bunari Tisa Dunav Kanali (l/s) (l/s) (l/s) (l/s) (l/s) (l/s) (l/s) 28160 -22523 ...
... varijantama Infiltracija padavina Evapotrans- piracija Vešt. prihr. GHB Bunari Tisa Dunav Kanali Varijanta (l/s) (l/s) (l/s) (l/s) (l/s) (l/s) (l/s) (l/s) A Trenutna eksploatacija, infiltracija padavina 80% realne 22528 -18368 0 4884 -4977 127 -556 -660 B Trenutna ek ...Dušan Polomčić, Zoran Stevanović, Saša Milanović, Stanko Sorajić, Bojan Hajdin, Željko Kljajić. "Održivo korišćenje mađarsko-srpskih međugraničnih vodnih tela" in Vodoprivreda 42 no. 04-Jun, Beograd : Jugoslovensko društvo za odvodnjavanje i navodnjavanje (2010): 223-235
-
Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja
Hidraulični bageri primenjuju se u različitim oblastima privrede a najzastupljeniji su u građevinarstvu i rudarstvu. Na površinskim kopovima sa kontinualnim sistemima, klasifikuju kao pomoćna mehanizacija a na površinskim kopovima sa diskontinualnim sistemima, kao osnovna mehanizacija. Kako je u oba slučaja njihova primena neizostavna, važno je izvršiti adekvatnu analizu postojećih podataka, u cilju optimizacije izbora tipa hidrauličnog bagera u odnosu na uslove rada datog površinskog kopa. U radu su opisane različite višekriterijumske metode koje su korišćene za analizu hidrauličnih bagera. ...... kriterijuma. Računanje vrednosti za Qj (kompromisno rešenje). * * ( ) ( )(1 ) ( ) ( ) j j s s Rj R Q v v s s R R (14) gde je: * * min ; max min ; max j j j j j j j j S S S S R R R R (15) Rangiranje se izvodi sortiranjem alternativa prema merama ...
... gks koje mogu uzi- mati vrednosti od 0 do 1, 1, , 1,2,..., ( 1) m k k s ksc c s n m m (31) 1, 0, ks ks ks ako je c c f ako je c c 1, , 1,2,..., ( 1) m k k s ksd d s n m m (32) 1, 0, ks ks ks ako je d d g ako je d d ...
... v v (23) Poslednji korak u TOPSIS metodi je računanje relativne bliskosti alternative idealnom rešenju, 1, 0 0i i i i S C C S S (24) Rang vrednost Ci poređanih u opadajući niz (od najveće do najmanje vrednosti) odgovara rangu alter- nativa Ai (od najbolje ...Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Filip Miletić, Ivan Janković. "Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja" in Tehnika, Centre for Evaluation in Education and Science (CEON/CEES) (2019). https://doi.org/10.5937/tehnika1903369D
-
A tool for identifying the criticality in the disordered systems with metastable dynamics
Svetislav Mijatović, Dragutin Jovković, Sanja Janićević, Stefan Graovac, Đorđe Spasojević. "A tool for identifying the criticality in the disordered systems with metastable dynamics" in Physica A: Statistical Mechanics and its Applications, Elsevier BV (2021). https://doi.org/10.1016/j.physa.2021.125883
-
Određivanje parametara smičuće čvrstoće tla primenom statističke metode
Božidar Rudnjanin (2024)Određivanje parametara smičuće čvrstoće tla je od ključne važnosti u geotehničkom inženjerstvu jer utiče na stabilnost i nosivost raznih građevinskih konstrukcija. Ovaj master rad obrađuje temu primene deskriptivne statistike za analizu parametara smičuće čvrstoće tla,čime se obezbeđuje osnov za donošenje odluka o planiranju i izvođenju građevinskih projekata.U prvom delu rada, prikupljaju se relevantni podaci o smičućoj čvrstoći tla iz prethodnih laboratorijskih ispitivanja za trasu buduće brze saobraćajnice Novi Sad - Ruma.Ti podaci uključuju vrednosti smičuće čvrstoće i različite faktore ...... filtracije ž s Š JIE |3 š 3 ||-}E s |ž 3|8|5 s 5Š ž 8 š s| [} -| s| Š - Š |a B •| e Š |s žš žl f | g s ON |||sJ| svl e al šlžB}bS|Š|a|} „ „ šš |ž š H Š i F Fj E|ElE|Š '3 s Hi d Hi Š i ri }i :| xž |s *|: S . = = 3) 3 š i Š5|Q8|s|S|E|šIš|es|š|B5|" || | 3 |šš|ag| Zž ŠslŽ |č|e|šssS}| | a Fa s š Š a 2als ...
... fihracije s|ls|e čvrstoće ii : s š|r|3 F| i & b| Hi ~ F š#|5 | 3 |i HIFSEE i <| ' | F -- t Š #* | & s |s ljE -l i Š E E s| š |1 || 5 \ s\ . š |ž ii š IBI FRIK:BoOFIEHIFa P E :||č|š|s|S |sihsši}ss} } |-.,|Š|2|, H| ” I šl 5 | 8 | 4 38|5|8|5|5|Š|2||4}|d BEBEHIEHHEHIEKBHIFSEHHHiE' š|š |3 a š rš s|as Ž ...
... T T T s ž i Granulometrijski saslav Zapreminska masa a j3 Slanje konsistencije Proktor CBR ';'Š;';::" F Koeficijent filtracije L g š Šš|S|4a N š|š3 | š |a * | Š | š žš s| 5 F-i š s| — [ I Š|sS}|Š I''T ~. F. iii thJ r — š| š r s |ž HBIET E slz sl |B|B|s _ 3|% |B g Š š| š Š 3 ||E s|E|ž|E|žš|š ...Božidar Rudnjanin. Određivanje parametara smičuće čvrstoće tla primenom statističke metode, 2024
-
Karst aquifer impact on the formation of surface runoff: case study of the Resava River catchment, Serbia
Marina Mitrašinović, Vesna Ristić Vakanjac, Veljko Marinović, Saša Milanović, Ljiljana Vasić, Dušan Polomčić (2022)The paper compares the flow regimes of the Resava River at the gauging stations of the Manasija Monastery (upper course) and the town of Svilajnac (lower course). The hydrological analysis encompasses a multiyear period of monitoring (1982–2020). The water budget and baseflow index are assessed for the catchment areas monitored by the Svilajnac station (683 km2) and the Manasija Monastery station (358k m2), considering the overall monitoring period and characteristic years. The results indicate that the specific runoff in ...... (Qav = 3.48 m?/s at Manasija Monastery and Qav = 4.35 m#/s at Svilajnac) and 2018 (Qav = 4.06 m?*/s at Manasija Monastery and Qav = 4.65 m?*/s at Svilajnac (Figs. 1a, 1b); • The ycar 1994 with a typical low discharge: Qav = 0.58 m*/s (at the Mansija Monastery) and 0.33 m?*/s (at Svilajnac) (Fig ...
... at Svilajnac • 180 . 160 s s o : z a : o g 10 P Ž ž Š w š š k i 33 Š o |}] E 40 || > o LJ 2808 888 8#8.8#8.4. 8 + žž BII II I I ŠGU 39 8B B ! Š Š 9 ž Š Š Š 3 'B B ! Š BI B R BO Cju.=<21”·(3320 d BB BSKSSBIBISB IBE —. at Manssin Mopasisty ——g:s. atvisjne ——>s at Manasija Monastery —-g.s. ...
... meters of water annually. Regarding water avail- ability, the value of 9.25 l/s/km? is considerably above Serbia's average. In dry years, the specific runoff is somewhat lower than the country”'s aver- age (4.92 1/s/km?). However, in wet years it is 2.3 times higher. When the two values of specific ...Marina Mitrašinović, Vesna Ristić Vakanjac, Veljko Marinović, Saša Milanović, Ljiljana Vasić, Dušan Polomčić. "Karst aquifer impact on the formation of surface runoff: case study of the Resava River catchment, Serbia" in National Conference with International Participation “GEOSCIENCES 2022”, Sofia : Bulgarian geological society (2022)
-
Introduction to special section: Characterization of hydrocarbon and geothermal resource potential and carbon sequestration opportunities of the Pannonian Basin
Balázs Németh, Gábor Tari, Gábor Bada, Dejan Radivojević, Bruno Tomljenovic, Csaba Krézsek. "Introduction to special section: Characterization of hydrocarbon and geothermal resource potential and carbon sequestration opportunities of the Pannonian Basin" in Interpretation, AAPG SEG (2018). https://doi.org/10.1190/INT-2017-1207-SPSEINTRO.1
-
Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone
The Vardar Zone is a product of the Triassic-Jurassic opening of the Neotethys, Jurassic obduction, Late Cretaceous/Paleogene consumption of the oceanic crust and continental collision. During the last process, the Eastern Vardar Zone was thrust over the Central and eventually both onto the Western Vardar Zone. The present paleomagnetic and structural study provided new results from the first two zones in the Belgrade area. The younger set of data, together with published ones from the third zone, provide firm ...Emő Márton, Marinko Toljić, Vesna Cvetkov. "Late and post-collisional tectonic evolution of the Adria-Europe suture in the Vardar Zone" in Journal of Geodynamics, Elsevier BV (2022). https://doi.org/10.1016/j.jog.2021.101880
-
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 ...... mannitol 10% (M 10%), sucrose 10% (S 10%), sucrose and mannitolin ratio 2:1 in total concentration 10%(S+M2 + 1 10%), sucrose and mannitol in ratio 3:2 in total concentration 10% (S+M 3 + 2 10%), sucrose and mannitol in ratio 1:1 in total concen- tration 10% (S+M 1 + 1 10%), sucrose and mannitol ...
... ratio 2:1 in total concentration 6% (S+M 2 + 1 6%). In second lyophilization (lyophili- zation-2) following excipients were added in total concentration 10%: sucrose (S), sucrose and mannitol in ratio 1:1 (S+M 1 + 1), sucrose and mannitol in ratio 3:2 (S+M 3 + 2), trehalose (T), trehalose and ...
... mannitol at a total concentration of 10% (S+M 2 + 1 10%, S+M 3 + 2 10%, and S+M 1 + 1 10%). The particle size remained almost the same and the PDI was less than 0.200, indicating uniform particle size. However, at a sucrose to mannitol ratio of 2 to 1 (S+M 2 + 1 10%), the cake collapsed, which ...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. "Freeze-dried nanocrystal dispersion of novel deuterated pyrazoloquinolinone ligand (DK-I-56-1): Process parameters and lyoprotectant selection through the stability study" in European Journal of Pharmaceutical Sciences, Elsevier BV (2023). https://doi.org/10.1016/j.ejps.2023.106557