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406 items
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BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties
Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković (2023)To investigate the influence of spinel structure and sintering temperature on the functional properties of BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface from acetylacetonate precursors. As-prepared powders were additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the detailed examination of phase composition and morphology. The magnetic, dielectric, and ...ferroelectric, dielectric properties, magnetic properties, titanate/ferrite composites, phase composition... X.; Chai, Y.; Zhou, L.; Cao, H.; Cruz, C.; Yang, J.; Dai, J.; Yin, Y.; Yuan, Z.; Zhang, S.; et al. Observation of Magnetoelectric Multiferroicity in a Cubic Perovskite System: LaMnaCraOy. Phys. Rev. Lett. 2015, 115, 87601. [CrossRef] [PubMed] 14. Takahashi, Y.; Shimano, R.; Kaneko, Y.; Murakawa ...
... Was observed at 1300 ?C in all studied cases. Inorganics 2023, 11, 51 3of 19 as-prepared In te ns it y [A rb . un it s] In te ns it y [A rb . un it s] 1300 ·C In te ns it y [A rb . un it s] 10 20 30 40 50 60 70 80 0p i P FI BaTiO_/NiFe,O, BaTiO,/ZnFe,O, BaTiO,/Ni, „Zn ...
... Composites: Applications, Coupling, Mechanisms, and Future Directions. Nanomaterials 2020, 10, 2072. [CrossRet] 8. _ Mao, Q.; Wu, J.; Hu, Z.; Xu, Y.; Du, Y.; Hao, Y.; Guan, M.; Wang, C.; Wang, Z.; Zhou, Z.; et al. Magnetoelectric devices based on magpnetoelectric bulk composites. J. Mater. Chem. C 2021 ...Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković. "BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties" in Inorganics, MDPI AG (2023). https://doi.org/10.3390/inorganics11020051
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English for Geology Students. 2
Lidija Beko (2023)... Reading Comprehension........... . SLOPE STABILITY ... ttt ttt Mocabulary_ y. NN al . JMN a M, 2MA do a a -yy „O laJaM-Jja Reading Comprehension...........ca. (rammarispo{(-. .J . :yar-Ja%93 270 y Myaı . D . - a ı- eyala y a -yskt ipixercisesL, d. ...... a d W · -kef Ag • ,,, 5v -P ON 2 . a SOMa ...
... .. . MM a o -jyO. 0a -M Reading Comprehension...........i a \rarmmar Spof.. . e a av dMe de e a e de a a la Ioarcik89 olo c o b djo o BRIIO OB .y JD - IIIA K Geological Wonders..........i. a Profession – Young Crystallographer................... Geology Mystery Files ... e Geology through Myths ...
... - W ... .. NEO 125 Reading Comprehension.......... iii 126 Part,2 RBGLAGIERSL. .. a e ddv do M, a . . -M JM 128 'Vocabulary...e.....RM I o N i. y- k 131 Reading Comprehension..........iii .. 133 Part3 MILANKOVITCH CYCLES........ ttt 134 Vocabulary........k.coac a dd0 dd d a d 2 MNMBA o a 138 ...Lidija Beko. English for Geology Students. 2, Belgrade : The Faculty of Mining and Geology, 2023
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Prognoza operativne efikasnosti aktivnog podzemnog rudnika zasnovana na teoriji sivih sistema
Svetlana M. Štrbac-Savić (2016-06-10)Efikasnost predstavlja preduslov za opstanak svake rudarske kompanije, posebno u uslovima izuzetno konkurentnog trţišnog okruţenja kao što je to rudarska industrija. Efikasnost oznaĉava sposobnost kompanije da ispuni svoje kratkoroĉne ili dugoroĉne ciljeve. Operativna efikasnost se definiše kao odnos izmeĊu ulaznih parametara potrebnih za odvijanje proizvodnje i pokazatelja dobijenih proizvodnjom. U kontekstu rudarskog poslovanja, operativna efikasnost se odnosi na vreme potrebno da se mineralno dobro transformiše u novĉana sredstva. Visoka operativna efikasnost se postiţe kada se ostvari prava kombinacija karakteristika ...podzemni rudnik, operativna efikasnost, prognoza, teorija sivih sistema, stohastiĉke diferencijalne jednaĉine, simulacija... 0 1 0 1 0 1 1 2 0 2 0 2 0 2 1 2 0 0 0 1 2 0 0 0 1 2 ˆ ˆ ˆ ˆ ˆ ˆ ˆ ˆ ˆ ˆ ˆ ˆ s s s T s s s T S T s S s S s S T T y y y y y y E DOL y y y E y E y E y (4.26) Na osnovu jednaĉine (4.26), rukovodstvo ...
... ˆ ˆ 0 y k y k y k k n y y k (4.6) Za k>n moţe se prognozirati DOL: 55 6 6 1 0 1 1 1 1 0 1 1 1 1 1 1 0,1, 2, , 1 1 , ˆ ˆ ˆ ˆ 1, 2, , j ja n h j j j j b b y n h y x n h e x n ...
... 1, 2, 3, 4, 5, 6, 0 1 1 1 , , , , , 0,1, 2, , 1 1 1, 2, , 1, 2, ˆ ˆ ˆ ˆ , ˆ s s s s s n h n h n h n h n h n h s s s y n h y x x x x x x h T y n h y n h y n h h T s S (4.24) gde S oznaĉava broj simulacija. ...Svetlana M. Štrbac-Savić. "Prognoza operativne efikasnosti aktivnog podzemnog rudnika zasnovana na teoriji sivih sistema" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-06-10)
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Microstructural and magnetic properties of electrospun hematite/cuprospinel composites
Phase composition, microstructural and magnetic properties of electrospun hematite/cuprospinel composites were investigated. Samples were synthesized starting with 0 to 10 mol% of copper relative to iron. The round shape of reference electrospun fbres was preserved upon their heating up to 600 °C in air, whereas at 700 °C hollow substructure was additionally formed. In these reference samples the presence of hematite phase was detected by XRPD. A small amount (traces) of Fe3O4 /γ-Fe2O3 was also found, due to the ...Electrical and Electronic Engineering, Condensed Matter Physics, Atomic and Molecular Physics and Optics, Electronic, Optical and Magnetic MaterialsMira Ristić, Aleksandar Kremenović, Michael Reissner, Željka Petrović, Svetozar Musić. "Microstructural and magnetic properties of electrospun hematite/cuprospinel composites" in Journal of Materials Science: Materials in Electronics, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s10854-020-03526-0
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The number of unimodular roots of some reciprocal polynomials
Dragan Stankov (2020)We introduce a sequence P2n of monic reciprocal polynomials with integer coefficients having the central coefficients fixed. We prove that the ratio between number of nonunimodular roots of P2n and its degree d has a limit when d tends to infinity. We present an algorithm for calculation the limit and a numerical method for its approximation. If P2n is the sum of a fixed number of monomials we determine the central coefficients such that the ratio has the minimal limit. ...Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomialsDragan Stankov. "The number of unimodular roots of some reciprocal polynomials" in Cmptes rendus mathematique (2020). https://doi.org/10.5802/crmath.28
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Uporedna analiza stabilnosti završnih kosina površinskog kopa „Veliki Krivelj“
Mihajlo Topalović (2023)Površinski kop „Veliki Krivelj“ nalazi se u blizina grada Bora i u neposrednoj blizini sela Krivelj. Od 2018. godine je u vlasništvu kineske kompanije „Zijin“ koja ima udeo od 63% vlasništva celokupnog RTB-a Bor. Na površinskom kopu obavlja se masovna eksploatacija rude bakra opremom visokog kapaciteta. Za bušenje se koriste bušilice prečnika od 250 do 310 mm, a za utovar minirane rude i jalovine bageri čija je zapremina kašike 15 m3 i 22 m3. Za površinski kop „Veliki Krivelj“ ...Mihajlo Topalović. Uporedna analiza stabilnosti završnih kosina površinskog kopa „Veliki Krivelj“, 2023
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Properties of fly ash and slag from the power plants
This paper describes the physical, chemical and mineral properties of ash and slag, which were taken from thermal power plants Nikola Tesla A, Nikola Tesla B, Kostolac A and Kostolac B. The knowledge of the mineralogical material composition is important because the type of minerals directly determines the properties of the fly ash and slag and their possible application. Laboratory tests showed that ash and slag samples consist of the following minerals: amorphous materials, quartz, feldspar, mullite, melilite, cristobalite, ...fly ash, slag, physical composition, chemical composition, mineral composition, X-ray diffraction method... 2.43 0.23 0.40 0.49 0.74 LOI 1000 – loss on ignition 1000°C; m – �y ash for month May; j – �y ash for month June; (s) – slag; NT – Nikola Tesla; KO – Kostolac Figure 5. The R module according to PP (m – �y ash for month May; j – �y ash for month June; (s) – slag; NT – Nikola Tesla; KO – Kostolac). ...
... 00 – 2.16 – 8.57 m – �y ash for month May; j – �y ash for month June; (s) – slag; w – humidity of the sample; <63μm – fraction of less than 63μm; <2.9 – density of less than 2.9g/cm3; pH – pH values; NT – Nikola Tesla; KO – Kostolac Table 2. Results of chemical analyses of �y and slag taken from the ...
... (s) 56 21 11 3 – – 4 – 5 100 NT B (s) 58 31 5 3 – – 3 – – 100 KO A (s) 63 26 8 – – – – – 3 100 KO B (s) 45 5 25 10 2 – 10 3 – 100 m – �y ash for month May; j – �y ash for month June; (s) – slag; AM – the amorphous material; Q – quartz; f – feldspar; M – mullite; Ml – melilite; An – anhydrite; Cr – ...Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić. "Properties of fly ash and slag from the power plants" in Geologia Croatica, Zagreb : Croatian Geological Survey (2016). https://doi.org/10.4154/gc.2016.26
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English for Geology Students. 1
Lidija Beko (2023)... - -- -PN.)B /. .|.A O a . - - 31 Reading Comprehension........... a 33 (Gqiranyar P GjeX0)ta dk ooco i obag0od DOb000dobgo y O0000gOoG 34 Exercises XNM . . . MM sg ly- z a y . MM N a D OM o , 36 Geological Wonders ... a 37 Profession – Mineralogist ............ii ... 38 Geology Mystery Files ...
... Comprehension....... ..iiiii i. 79 ROoCK GMOCKS „. a JE--66 J7B -BO OR ZM . .. ML 80 Vocabuulary..0... .0. . MM A yas.K./9. . . JJ .FA M ys wya\viala y a 82 Reading Comprehension.........iiii i. 83 RELATIVE DATING ......... . a ttt 84 \/oeeloyulyo d d0do 0do Poo do oa000.0bDO OOO 0b 0000 88 ...
... . .. NEO 128 Reading Comprehension.......... iii 129 Part 2 |ŽČIGNEOUS ROCKS.... . a v MM . .O . M, 130 'Vocabulary....e.. ...R ... a o . N i a y- k 133 Reading Comprehension..........ii . 134 Part 308 VOLCANOES|.J. „v „Og J JNR 31 . ov eoPeMaMO. • MM cı + - + ) ttake 136 Vocabulary....... ...Lidija Beko. English for Geology Students. 1, Belgrade : The Faculty of Mining and Geology, 2023
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Optimizacija parametara reza rotornog bagera pri otkopavanju materijala sa povećanom čvrstoćom
Saša D. Bošković (2016-09-09)Otkopavanje materijala rotornim bagerom je veoma sloţen fiziĉko-mehaniĉki proces. Pokazatelji efektivnosti tog procesa zavise od velikog broja raznovrsnih ĉinilaca od kojih se posebno mogu istaći: fiziĉko-mehaniĉke karakteristike materijala koji se otkopava, reţim rada bagera i izbor tehnoloških parametara bloka, odreska i reza, geometrije vedrica i zuba itd. Poseban problem se javlja kod otkopavanja materijala povećane ĉvrstoće, što je ĉest sluĉaj na našim površinskim kopovima. Dimenzionisanje specifiĉne sile kopanja bagera prema manjim masama izuzetno ĉvrstog materijala je neracionalno i rešenje ...rotorni bager, parametri reza, otpor na kopanje, dinamika bagera, kapacitet, optimizacija, specifična potrošnja energije... dldm dnmdmldml nml cs sc z y x T z y x Z Y X T z y x ml Z Y X T z y x TTT xx oxxxxxx xxx xx /0/ //)(/T 0 0 001 T , , )(=d sin=s , cos=c , , 00 0 2 0 2 000 ...
... i momenti u savijenoj ploči Priraštaji sila i momenata glase: . dy y T TT , dx x T TT , dy y M MM , dx x M MM , dy y M MM , dx x M MM yz yz ' yz x xz ' xz yx yx ' yx xy xy ' xy y y ' y x x ' x ...
... pretpostavki teorije tanke ploĉe imamo deformacije z=0, xz=0 i yz=0 i pomeranja w=w(x,y), u=-zy=-z w/x i v=-zx =-zw/y. Nepoznate deformacije glase: . yx w z2 x v y uγ , y w z y vε , x w z x uε 2 xy2 2 y2 2 x ...Saša D. Bošković. "Optimizacija parametara reza rotornog bagera pri otkopavanju materijala sa povećanom čvrstoćom" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-09)
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Hronološki pregled razvoja površinske eksploatacije lignita u Srbiji
U ovom preglednom radu dat je istorijski pregled razvoja površinske eksploatacije lignita na teritoriji Srbije, uz kratak osvrt na geološki nastanak i kvalitet i rezerve uglja, kao i mogućnosti korišćenja za dalju upotrebu. Kolubarski, Kostolački i Kovinski ugljeni baseni lignita u Srbiji, ne računajući Kosovsko-Metohijski i Drenički u sastavu AP Kosovo i Metohija po Rezoluciji 1244 UN, su ležišta najrasprostranjenijeg uglja - lignita u Srbiji koji se eksploatiše od druge polovine 20. veka na velikom broju površinskih kopova ...Bojan Dimitrijević, Radmila Gaćina, Bogoljub Vučković. "Hronološki pregled razvoja površinske eksploatacije lignita u Srbiji" in XI Međunarodna konferencija ugalj i kritični mineral CCM 2023, Zlatibor, 11-14. oktobar 2023., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
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Rezultati ispitivanja parametara čvrstoće i dinamičkih svojstava mermera i mogućnost njihove korelacije
Ispitivanja stena kao radne sredine, odnosno materijala sa kojim se gradi, na kome se gradi i u kome se gradi, svojom složenošću zahteva njeno svestrano izučavanje po velikom broju parametara. Zadatak Mehanike stena je da što bolje upozna ponašanje stenske mase i njenu otpornost na dejstvo pritiska, zatezanja i smicanja, kao i dinamičkih svojstava. Poznavanje navedenih parametara i njihova korelacija omogućavaju pouzdaniji izbor parametara za projektovanje danas sve zahtevnijih uslova kako podzemne, tako i površinske eksploatacije. U ovom radu ...mermer, jednoosna čvrstoća na pritisak, čvrstoća na istezanje, brzina longitudinalnih elastičnih talasa, korelacijaJelena Majstorović-Necković, Vladimir Čebašek, Veljko Rupar. "Rezultati ispitivanja parametara čvrstoće i dinamičkih svojstava mermera i mogućnost njihove korelacije" in 11. Međunarodna konferencija “Ugalj i kritični materijali" CCM 2023, Zlatibor, 11-14. oktobar 2023., Beograd : Jugoslovenski komitet za površinsku eksploataciju (2023)
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Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material
Borislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić (2022)Pyrophyllite, with the chemical formula Al2Si4O10(OH)2, is a naturally occurring and abundant van der Waals mineral belonging to the group of phyllosilicates. It is very soft, layered crystal used for sculpting and an excellent electrical and thermal insulator aimed for the operation at high pressure and temperature. Here, for the first time, two-dimensional (2D) pyrophyllite obtained by both mechanical and liquid phase exfoliation is presented and investigated at the nanoscale. The layered structure provides low friction coefficient of around ...Atomic force microscopy, Insulating properties, Nanofriction and wear, Natural two dimensional materials, Phyllosilicates, PyrophylliteBorislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić. "Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material" in Applied Surface Science, Elsevier BV (2022). https://doi.org/10.1016/j.apsusc.2022.155114
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Phase relations and physical indicators of municipal waste from old landfills in Serbia
Due to certain similarities of municipal waste and soil, usually for the determination of basic parameters of physical state, laboratory and field tests which are common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different values of indicators of municipal waste physical state can be found in the literature. The basic reasons should be found in different definitions and methods that researchers use ...municipal waste, moisture content, unit weight, specific gravity, grain size distribution, porosityGeneral Computer Science... indicators of iušLte008| Y Horanalysis| municipal waste. In addition, physical properties of •n žž% M:s| ; H n pj ii r waste change over time, both in depth and from · · O waste- location to location, so the method of taking and O selection of representative samples is problematic and y &@F"c'“f'“ a has ...
... Definition of the most important physical parameters of municipal waste (Fassett et al., 1994). Parameter Mark Unit Relations Unit weight Y kN/m) Y=W/V=(I+w) ·Ya Void ratio e mš/m* e= V /V, = | ___I-n Unit weight W a of solid A kN/m* E i ——— particles Vs 1-n 'Volume water v m*/m* v= V ...
... on average unit weight. As an illustrative example for this, we can specify “PET” packaging, or a can whose unit weight is Y=2 kN/m? when it is empty, or around y = 12 kN/m* when it is filled with fluid, and when it is compressed under high pressures its unit weight is approximate to a metal ...Dragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić. "Phase relations and physical indicators of municipal waste from old landfills in Serbia" in Japanese Geotechnical Society Special Publication, The Japanese Geotechnical Society (2021). https://doi.org/10.3208/jgssp.v09.cpeg016
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Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia
Paleontology, Stratigraphy, Economic Geology, Geochemistry and Petrology, Geology, Geophysics, Geotechnical Engineering and Engineering Geology... KpeuMbauH Cca po- *KHaliHMa Cy y yHyTpalıMbHM /lHHapH/nHMa H03HaTH o/ Ha3HBOM ĐopManuuja TpHBcKe. CenHMeHTe ĐopwManuje TpHBcKe KapakTepHite npHCyCTBO MHKpO- dQocHaa – KoHo/JloHaTa H pajiHOJIapHja, KaoO H OJICyCTBO MaKpoQayHe. Ha noKajnTeTy y MOJHHH peKe JIHM, y OmH3HMHH Bucrpume (J3 Cpouja), ...
... Western North America. Bulletins of American Paleontology, 85: 1–88. BRAGIN, N. Y. 2000. Triassic radiolarian zonation in the Far East of Russia. Stratigraphy and Geological Correlation, 8:579-592. BRAGIN, N. Y. 2007. Late Triassic radiolarians of southern Cyprus. Paleontological Journal, 41: ...
... NIKITA YU. BRAGIN, LIUBOV G. BRAGINA, NEVENKA DJERIĆ & !NATAŠA GERZINA SPAJIĆ y uJby noOHjaHba HoOBHx Io/laTaKa H3BPpIHIeHa Cy HcTpax)xiBaHba Kap0oOHaTHO-payiHOJtapHTCKHX ceJlH- MeHarTa Ha JecHoj o0ajiuH peKe JIuM, y O-t3anHH ymha peke BuHcrpHme. HcrpaxHBaHH ceHMeHTH IIpe/- CTaBJbeHH Cy CHBHM ...Nikita Bragin, Liubov Bragina, Nevenka Đerić, Nataša Gerzina-Spajić. "Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia" in Geološki anali Balkanskoga poluostrva (2019). https://doi.org/10.2298/GABP1901017B
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Tehnologija izrade i opremanje magacina eksploziva za potrebe ležišta bakra
Aleksandar Milojević (2024)Nakon radova otvaranja i početka eksploatacije, rudno telo bakra velikih rezervi zahteva i veliku količinu eksploziva da bi se ostvario zacrtan kapacitet. Samim tim, neophodno je izraditi funkcionalan magacin eksploziva koji će biti pristupačan svim horizontima i koji će moći da ispuni celokupni kapacitet svih horizonata. Obzirom da će se u magacinu skladištiti eksploziv, on mora ispunjavati specijalne uslove kako bi skladištenje bilo bezbedno. Neophodno je isprojektovati magacin tako da ispuni sve zahteve po pitanju količine i načina skladištenja eksploziva, ...... o;uraraMba y JIHrHTanHoM penoanTopHjyMy PynapcKo-reojonikor (QakynreTa. /loaBoxbaBaM a ce o6jaBe MojH mmuHH noaanH Be3aHH 3a. no0njahbe akaneMCKor 3BaPa, Kao IITO Cy HME H Iipe3HMe, roJiHHa H MeCTO poljePba H JlaTyM ojnpaHe panna. OBH mHuHH monmaiuH Mory ce oćj aBHTH y CJČKTDOHCKOM KaTajIOry H y nyoO ...
... nyoOmHkaunHjaMa Pyanapcko-reonomikor (Qakynrera. y Beorpany, .. 2.202 y| TIornuc crynenra 72 O6pasaij 3 H3JABA O KOPHIIhBEIby 3ABPIIIHOT PAJIA OpnauliyjeM GnuOmnioTeky Pynapcko-reonourkor (pakynrera na y JIHriTaniH peno3HTopHjyM yHece MOj 3aBpUIHI pajl 0J1 HaCJ1OBOM: lčZchcFž'S u,»QQgg & ...
... Zapreminska težina, y (kKN/m*): 23 • Ugao unutrašnjeg trenja, q (*): 60 23 • Geološki indeks čvrstoće: 65 • Čvrstoća na pritisak, oc (MPa): 70 • Indeks čvrstoće,f: 7 Stabilnost horizontalnih prostorija se može odrediti prema kriterijumu po Moru: (1 + sin o)? y:·H·(1 – sin g) gde ...Aleksandar Milojević. Tehnologija izrade i opremanje magacina eksploziva za potrebe ležišta bakra, 2024
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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 ...... KaTajJIOry H y myOnHMKauHjaMa Pynapcko-reonormikor (bakyanreTa. 'Y Beorpajty, IIornuc crynenaTa Oe60pasay 3 H3JABA O KOPHIITPREMbY 3ABPII(HOT PAJIA OnunanhyjeM 680nnoreky Pynapcko-reonomkor (pakyanrera na y JIinraranHuH peno3HTopHjyM yHeCe MOJ 3aBPIIIHH P4JI II0J1 HACJIOBOM: %a/jh@v\_/že/ ...
... _Op cAčA VOĆC _vp cfođe- _znM__/yw/eftord Cra{cTu do __e/bDfe, _______ • pes3yjTaT COTICTBEHOT HcTpa;KHBauKor pa]jtia: • a 3aBpIHHM paji y uenMHH HH y JeJIOBHMa HHje OHO TIpeJUTIO)XKeH 3a cTHHaMe Jpyre JUHIIJIOME Ha CTyJIHjCKHM HporpaMHMa Pyjapcko-reomomnikor (pakynreTa HH JIpyrHx BHCOKOILHKOJICKHX ...
... panH ojuTrarabba y JiMrHTaJHOM peno3HTOpHjyMy PylapcKOo-TeoJIOHIKor (pakynrera. Jlo3BoJbaBaM a ce oOjaBe MOjH JiHuHH TIOJlaLH Be3aHH 3a JOOHjaHbe aKajieMCKOT 3BaM»a, KaO HITO Cy HMC H IIipe3HME, rojlHHa H MecTO poljetba H naTyM oJiOpaHe pajla. OBH nHuHH HNojauM MOTy Ce OOJaBHTH y cCJEKTpOHCKOM KaTajJIOry ...Božidar Rudnjanin. Određivanje parametara smičuće čvrstoće tla primenom statističke metode, 2024
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Polyhedral characteristics of the cosalite-type crystal structures
Sabina Kovač, Predrag Dabić, Aleksandar Kremenović, Aleksandar Pačevski, Ljiljana Karanović, Marko V. Rodić, Martina Tribus (2019)Sabina Kovač, Predrag Dabić, Aleksandar Kremenović, Aleksandar Pačevski, Ljiljana Karanović, Marko V. Rodić, Martina Tribus. "Polyhedral characteristics of the cosalite-type crystal structures" in The Canadian Mineralogist, Mineralogical Association of Canada (2019). https://doi.org/10.3749/canmin.1900017
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Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings
... equation: logv = logK − n·logR. (21) By introducing the change: logv = y; logK = b; −n = a; logR = x, (22) Equation (21) becomes a line equation: y = ax + b. (23) Minerals 2018, 8, 70 7 of 18 We will increase ordinate values y = logv by one positive number c, so that all points Mi(xi, yi + c) are ...
... this manner, the Equation (23) becomes equation: y + c = ax + b + c. (24) In practice, for c the following value can be taken: c = 3. (25) In this case Equation (24) becomes equation: y + 3 = ax + b + 3. (26) Let us write Equation (26) in the form: y + 3 = Ax + B, (27) where: B = b + 3. (28) If ...
... A(xN + x1) 2 . (33) By replacing the value for B from the Equation (33) into Equation (27), we obtain: y + 3 = A ( x − xN + x1 2 ) + ST xN − x1 . (34) From Equation (34), we have: A = y + 3 − ST xN−x1 x − xN+x1 2 . (35) Based on obtained experimental data of oscillation velocities v1, v2 ...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
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Hydrochemical impact of the hydraulic tunnel on groundwater in the complex aquifer system in Pirot, Serbia
Hidrogeohemijski procesi, hidrohemijske promene, karstna izdan, tunel pod pritiskom, multivarijantne statističke analizeMarina Ćuk, Igor Jemcov, Ana Mladenović, Marina Čokorilo Ilić. "Hydrochemical impact of the hydraulic tunnel on groundwater in the complex aquifer system in Pirot, Serbia" in Carbonates and Evaporites, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s13146-020-00563-y
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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 polynomialsDragan Stankov. "On the distribution modulo 1 of the sum of powers of a Salem number" in Comptes rendus Mathematique (2016). https://doi.org/10.1016/j.crma.2016.03.012