Претрага
842 items
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An Efficient Class of Iterative Root-Finding Methods with Applications
Dejan Ćebić, Nebojša Ralević (2021)... f2(wn) f(wn) f ′(xn) , xn+1 = zn − 1 1 + q2n f(zn) K − C(wn − zn)−D(wn − zn)2 , where qn = f(zn)/f(xn), while D = f ′(xn)−H (xn − wn)(xn − zn) − H −K (xn − zn)2 , C = H −K xn − zn −D(xn + wn − 2zn), H = f(xn)− f(wn) xn − wn and K = f(wn)− f(zn) wn − zn . Chun and Lee in [12] presented ...
... c2, S3 = K3 = −2c22 + 2c3, S4 = c2K 2 2 +K4 = 5c32 − 7c2c3 + 3c4, S5 = 2c2K2K3 +K5 = −2(6c42 − 12c22c3 + 3c23 + 5c2c4 − 2c5), S6 = c3K 3 2 + c2(K 2 3 + 2K2K4) +K6 = 28c52 − 73c32c3 + 34c22c4 − 17c3c4 + 5c6 +c2(37c 2 3 − 13c5), ... If ψ4(xn, wn) is any optimal Newton-based fourth order method ...
... Lofti, A new class of optimal 4 point methods with convergence 16 for solving nonlinear equations, Math. Comput. Simul. 119, 69–90, 2016. [9] Y. Tao, K. Madhu, Optimal Fourth, Eighth and Sixteenth Order Methods by Using Divided Difference Techniques and Their Basins of Attraction and Its Application, ...Dejan Ćebić, Nebojša Ralević. "An Efficient Class of Iterative Root-Finding Methods with Applications" in 2021 IEEE 19th International Symposium on Intelligent Systems and Informatics (SISY), IEEE (2021). https://doi.org/10.1109/SISY52375.2021.9582495
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Mineral Resources of Serbia: Environmental, Societal and Economic Challenges
Vladimir Simić, Rade Jelenković, Dragana Životić. "Mineral Resources of Serbia: Environmental, Societal and Economic Challenges" in Serbia: Current Issues and Challenges in the Areas of Natural Resources, Agriculture and Environment,, Nova Science Publishers, Inc. (2019)
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Terenska nastava iz geofizike: Arheološki lokaliteti na području Trstenika
Dragana Đurić, Jelena Vukčević, Dejan Vučković, Ivana Vasiljević, Vesna Cvetkov . "Terenska nastava iz geofizike: Arheološki lokaliteti na području Trstenika" in Aktuelna interdisciplinarana istraživanja tehnologije u arheologiji jugoistočne Evrope: zbornik radova / Prvi skup Sekcije za arheometriju, arheotehnologiju, geoarheologiju i eksperimentalnu arheologiju Srpskog arheološkog društva, 28.02.2020., Beograd, Beograd : Srpsko arheološko društvo (2020)
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On the compatibility of lexical resources for NooJ
Lexical resources for many languages are provided for the NooJ linguistic development environment. Meta-data descriptions of morphosyntactic and semantic properties of these languages and their resources are a mandatory part of each language module. In this paper we analyze how well the meta-data actually describe resources for a chosen subset of languages and to what extent are they compatible across languages to support multilingual processing. We show that there is place for improvement in both directions.Ranka Stanković, Miloš Utvić, Duško Vitas, Cvetana Krstev, Ivan Obradović. "On the compatibility of lexical resources for NooJ" in Automatic Processing of Various Levels of Linguistic Phenomena: Selected Papers from the 2011 International Nooj Conference, Cambridge Scholars Publishing (2012): 96-108
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Дефинисање циркулације карстних вода ,,Врело Кавак" у циљу одрживог управљања водним ресурсима
Милена Пућо (2024)У југоисточном делу Србије, североисточно од града Пирота формирана је богата карстна издан у оквиру јурских и доњокредних кречњака. Врело Кавак, које дренира ову издан учествује у водоснабдевању града Пирота.Дефинисање циркулације и специфичних услова дренирања ове карстне издани вршено је хидрохемијским и изотопским методама. Мултидисциплинарни приступ истраживања резултирао је сазнањима да се ради о спорој циркулацији подземних вода, као и водама различите старости, што је од великог значаја за управљање природним ресурсом као што су подземне воде врела ...... npecek KoHrn. (K+3) - Tlanopuu, neuuuapu, rnvwHuu (K+?) +—— )Kene3HMuka npyra - Tydpuu (OK,!) Behu peuHM TOK - Tleuuuapu, nanopuu M rnaMHuu (Kž') —— Mabbu peuHM TOK E FnaykoHuMTcku neuuuapu (K,*) — — — [loBpeMeHM TOK - Tleuuuapu, kpeutbauu, nanopuu (K,?) - CnpyaHu kpeutbauM (K,?) E kpeuwauy ...
... koHrn. (K+?3) | | Tpaa HacerbeHo MecTO | _— —) Tlanopuu, neuuuapu, rnuvHuuM (KžŠ) < _| Tydowu (ĐK,!) — lT A L Tleuiuapu, nanopuu u rnaHuuM (Kž') Teonou:iku npecek 47 80 00 0 47 80 00 0 |——-x— TnaykoHurcku neuuapu (K,*) +——— )KeneaHMuka npyra [Tleuiuapv, kpeubauM, nanopuu (K,?*) = - ...
... nocBeheHo je BMule naXxMHe y ronMHaMa noc:ie TIIpBor cBeTckor paTa, Kana Ccy O M=eMy monaTKe nyOnMKoBamwm J. LiBvjuh (1924, 1926), K. TlerkoBuh (1927, 1932, 1938), M. Tiporuh, K. TlerkoBuh (1932) w np. OBM panoBM Cy 3HaTHO nornpuHenwu 0nuDxeM Io3HaBaMy reonoruje oBor nonpyuja. M. Tiporuh (1934) je nerambHo ...Милена Пућо. Дефинисање циркулације карстних вода ,,Врело Кавак" у циљу одрживог управљања водним ресурсима, 2024
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Design of a sucker rod pumping system
Ana Ponoćko (2024)For a long time in the history of oil production, sucker rod pumps have been the first and in many cases the only choice when it comes to mechanical extraction methods. Proper selection of each individual element of the system enables optimization, which entails benefits in the form of increased efficiency and reduced costs. The first part of the paper presents the underground and surface equipment of the rod pump and describes the operation of the entire system. The ...... | i WLa| — . } _ || || -8 ı- | || || | m ” l I I I I I I I I _\n S E I K K N K U E - y r O 6.4. Figure Well XX-I Deviation survey plot 43 6.2 Well XX-1I in Prosper -Design Input Unit Type Conventional AntiClockwise Anchored Tubing No ...
... equation for fluid loss through the clearance between the plunger and the cylinder is given by [15,19]: dAxAp*6B „ d4 H*L qs =K 3.1 • qs= fluid loss trought the gap m*/d • K= empirical constant 11 • d= diameter of the plunger • Ap= pressure differential • G= clearance between the plunger ...
... or 15XX series steel). API Class K: Contains less carbon and significantly more nickel-molybdenum than Class C, designed to handle light to medium loads in non-corrosive environments. 24 API Class D: Generally contains more manganese and chromium than Class K. Used in deep wells or wells with ...Ana Ponoćko. Design of a sucker rod pumping system, 2024
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Bilingual lexical extraction based on word alignment for improving corpus search
Jelena Andonovski, Branislava Šandrih, Olivera Kitanović. "Bilingual lexical extraction based on word alignment for improving corpus search" in The Electronic Library, Emerald (2019). https://doi.org/10.1108/EL-03-2019-0056
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Quantitative analysis of syllable properties in Croatian, Serbian, Russian, and Ukrainian
Biljana Rujević, Marija Kaplar, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Jan Mačutek (2021)... of which eight are sonorants (j/j, l/л, lj/љ, m/м, n/н, nj/њ, r/р, v/в) and 17 are obstruents (b/б, c/ц, č/ч, ć/ћ, d/д, dž/џ, đ/ђ, f/ф, g/г, h/х, k/к, p/п, s/с, t/т, z/з, ž/ж). �e consonant r is syllabic if it occurs between two other consonants. Quantitative analysis of syllable properties 57 ...
... out of which eight are sonorants (j/j, 1/1, lj/, m/M, n/H, nj/t, r/p, v/B) and 17 are obstruents (b/6, c/u, ¢/4, c/h, d/a, dz/u, a/b, f/d, g/t, h/x, k/k, p/n, s/c, t/t, z/3, z/*). The consonant r is syllabic if it occurs between two other consonants. U n co rr ec te d p ro o fs - J o h ...
... consisting of �ve vowels (a, e, i, o, u) and 25 consonants – eight sonorants (j, l, lj, m, n, nj, r, v) and 17 obstruents (b, c, č, ć, d, dž, đ, f, g, h, k, p, s, t, z, ž). �e consonant r is syllabic if it occurs between two other consonants and the one which follows r is not j (i.e., crni “black” is syllabi�ed ...Biljana Rujević, Marija Kaplar, Sebastijan Kaplar, Ranka Stanković, Ivan Obradović, Jan Mačutek. "Quantitative analysis of syllable properties in Croatian, Serbian, Russian, and Ukrainian" in Language and Text: Data, models, information and applications, John Benjamins Publishing Company (2021). https://doi.org/10.1075/cilt.356.04ruj
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The influence of alkyl polyglucosides (and highly ethoxylated alcohol boosters) on the phase behavior of a water/toluene/technical alkyl polyethoxylate microemulsion system
Marija Ilic, Franz-Hubert Haegel, Vesna Pavelkic, Dragan Zlatanovic, Snezana Nikolic-Mandic, Aleksandar Lolic, Zoran Nedic (2016)The influence of additives (alkyl polyglucoside, Glucopon 600 CS UP and alcohol ethoxylate C18E100) on the behavior of the water/toluene/Lutensol ON 50 (technical oxoalcohol, i-C10E5) microemulsion system as a function of temperature and composition has been investigated. The phase behavior of the microemulsions was determined by vertical sections through the Gibbs phase prism (fish-like phase diagrams). Alkyl polyglucoside shifts the one phase region to lower temperatures compared with water/toluene/Lutensol ON 50 mixtures. This is contrary to the expectation, considering ...микроемулзија, толуен, алкил полиглукозид, оксоалкохол етоксилат, појачивач ефикасности, „fish“ дијаграми... Langmuir 23 (2007) 6526-6535 K. Hill, in Alky! Polyglucosides: Technology, Properties and Applications, K. Hill, W. von Rybinski, G. Stoll (Eds.), VCH, New York, 1997, pp. 1-7 D. Geetha, R. Tyagi, Tenside, Surfactants Deterg. 49 (2012) 417-427 M. Haeger, K. Holmberg, Tetrahedron Lett. 41 ...
... [14 [15 [16 [17 [18 [19 [20 [21 [22 [23 [24 [25 K. Holmberg, B. Jonsson, B. Kronberg, B. Lindman, Surfactants and polymers in aqueous solution, John Wiley & Sons, Chichester, 2003 A. Kabalnov, U. Olsson, K. Thuresson, H. Wennerstrom, Langmuir 10 (1994) 4509-4513 H. Endo ...
... 60 (2015) 124-136 K. Hill, W. von Rybinski, G. Stoll, Alky! Polyglucosides: Technology, Properties and Applications, VCH, New York, 1997 C. Stubenrauch, Curr. Opin. Colloid Interface Sci. 6 (2001) 160-170 L.D. Ryan, E.W. Kaler, Colloids Surfaces, A 176 (2001) 69-83 K. Fukuda, U. Olsson ...Marija Ilic, Franz-Hubert Haegel, Vesna Pavelkic, Dragan Zlatanovic, Snezana Nikolic-Mandic, Aleksandar Lolic, Zoran Nedic. "The influence of alkyl polyglucosides (and highly ethoxylated alcohol boosters) on the phase behavior of a water/toluene/technical alkyl polyethoxylate microemulsion system" in Chemical Industry and Chemical Engineering Quarterly, National Library of Serbia (2016). https://doi.org/ 10.2298/CICEQ141105015I
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Грешка инклинације код депозиционе реманетне магнетизације
Mirko Petković, Vesna Cvetkov (2019)Mirko Petković, Vesna Cvetkov. "Грешка инклинације код депозиционе реманетне магнетизације" in II Когрес геолога Босне и Херцеговине са међународним учешћем , Удружење геолога у Босни и Херцеговини (2019)
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The influence of alkyl polyglucosides (and highly ethoxylated alcohol boosters) on the phase behavior of a water/toluene/technical alkyl polyethoxylate microemulsion system
Marija Ilić, Franz-Hubert Haegel, Vesna Pavelkić, Dragan Zlatanović, Snežana Nikolić-Mandić, Aleksandar Lolić, Zoran Nedić (2016)The influence of additives (alkyl polyglucoside, Glucopon 600 CS UP and alcohol ethoxylate C18E100) on the behavior of the water/toluene/Lutensol ON 50 (technical oxoalcohol, i-C10E5) microemulsion system as a function of temperature and composition has been investigated. The phase behavior of the microemulsions was determined by vertical sections through the Gibbs phase prism (fish-like phase diagrams). Alkyl polyglucoside shifts the one phase region to lower temperatures compared with water/toluene/Lutensol ON 50 mixtures. This is contrary to the expectation, considering ...mikroemulzija, toluen, alkil poliglukozid oksoalkohol etoksilat, pojačivač efikasnosti, dijagrami “ribe”Marija Ilić, Franz-Hubert Haegel, Vesna Pavelkić, Dragan Zlatanović, Snežana Nikolić-Mandić, Aleksandar Lolić, Zoran Nedić. "The influence of alkyl polyglucosides (and highly ethoxylated alcohol boosters) on the phase behavior of a water/toluene/technical alkyl polyethoxylate microemulsion system" in Chemical Industry and Chemical Engineering Quarterly, National Library of Serbia (2016). https://doi.org/ 10.2298/CICEQ141105015I
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Possibility of application of fuzzy logic for stability assessment of underground facilities
Rudnici sa podzemnom eksploatacijom uglja u Republici Srbiji deo su Javnog preduzeća za podzemnu eksploataciju uglja Resavica (JP PEU). U rudnicima kompanije JP PEU podzemne prostorije se trenutno grade tehnologijom bušenja i miniranja. Ova metoda, koja se koristi u srpskim rudnicima uglja, pokazala je svojom brzinom, efikasnošću, troškovima i drugim elementima da više nije prihvatljiva. Klasičan metod izgradnje podzemnih prostorija ne omogućava zadovoljavajuću produktivnost, jer se tehnološke operacije ovog metoda, bušenje i miniranje, izvode ručno i zahtevaju neprihvatljivo mnogo ...Luka Crnogorac, Rade Tokalić, Đurica Nikšić, Saša Jovanović . "Possibility of application of fuzzy logic for stability assessment of underground facilities" in Mining and environmental protection, Vrdnik, 25 - 28 September 2019, University of Belgrade, Faculty of Mining and geology (2019)
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Two approaches to compilation of bilingual multi-word terminology lists from lexical resources
In this paper, we present two approaches and the implemented system for bilingual terminology extraction that rely on an aligned bilingual domain corpus, a terminology extractor for a target language, and a tool for chunk alignment. The two approaches differ in the way terminology for the source language is obtained: the first relies on an existing domain terminology lexicon, while the second one uses a term extraction tool. For both approaches, four experiments were performed with two parameters being ...... labels and the precision measure per combinations of labels LIS-dict Eng-TE LIS-corp LIS-corp+ LIS-corp LIS-corp+ c h u n k t e x t c h u n k t e x t c h u n k t e x t c h u n k t e x t LIS-dict 173 240 301 362 LIS 182 284 377 413 373 377 430 429 T 611 602 800 799 OK 470 486 728 754 X 76 76 94 90 ...
... s_term_text_adj 1,245 parameter 1.2794 1.2393 s_positive 1,592.89 2,707.76 LIS-corp LIS-corp+ LIS-corp LIS-corp+ c h u n k t e x t c h u n k t e x t c h u n k t e x t c h u n k t e x t tp (true positive) 355 524 678 775 1,454 1,465 1,958 1,982 fn (false negative) 465 486 728 662 599 556 898 873 ...
... pairs between sets obtained by varying three parameters LIS-dict Eng-TE LIS-corp LIS-corp+ LIS-corp LIS-corp+ c h u n k t e x t c h u n k t e x t c h u n k t e x t c h u n k t e x t 355 524 678 775 1,454 1,465 1,958 1,982 L I S -c o r p chunk 355 316 271 285 1,454 1,377 1,260 1,247 % 100 ...Branislava Šandrih, Cvetana Krstev, Ranka Stanković. "Two approaches to compilation of bilingual multi-word terminology lists from lexical resources" in Natural Language Engineering, Cambridge University Press (CUP) (2020). https://doi.org/10.1017/S1351324919000615
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Supstitucione reakcije Pd(II) kompleksa sa biološki važnim biomolekulima
... двозрачном спектрофотометру у видљивом и ултраљубичастом делу спектра, у опсегу од 200 до 800 nm, (Perkin Elmer Lambda 35). С л и к а 5 . С к и ц а п о с т а в к е е к с п е р и м е н т а . Објашњење скраћеница: С1, С2, С3 – ознаке проба; HeNe - хелијум неонски ласер; БС - делилац снопа (BS010, 50:50 ...
... 757. 13. W. Phurpa, P. Keller, S. Pyne, W. Lie, A. Willis, R. Rattanajak, S. Kamchonwongpaisan, J. Ethnoharmacol., 150 (2013) 953. 14. K-S. Park, K-C. Kang, K-Y. Kim, P-Y. Jeong, J-H. Kim, J. Antimicrob. Chemother., 47 (2001) 513. 15. J.L. Vennerstrom, D.L. Klayman, J. Med. Chem., 31 (1988) 1084 ...
... [Pd(en)(H2O)2]2+ [28] 13600 ± 200 933 ± 60 [Pd(Et4en)(H2O)2]2+ [28] 245 ± 4 12.40 ± 0.04 [Pd(L)(H2O)2] + + Nu [Pd(L)(H2O)Nu]+ + H2O (1) k1 k-1 [Pd(L)(H2O)Nu]+ + Nu k2 k-2 [Pd(L)(Nu)2] + + H2O (2) L = SMC, L-Met, Pic, en, Et4en [Pd(Pip)(H2O)2] 2+ [30] k2/M–1 s–1 [(BLiPr)Pd(H2O)2] 2+ [14] k2/M–1 s–1 ...Aleksandar M. Mijatović, Jovana Bogojeski. "Supstitucione reakcije Pd(II) kompleksa sa biološki važnim biomolekulima" in Hemijski pregled, Srpsko hemijsko društvo (2017)
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Analysis of the Influence of Burden Deviation from the Designed One on the Intensity of the Blast Vibration
Stefan Milanović, Lazar Kričak, Milanka Negovanović, Nikola Simić, Jovan Marković, Nikola Đokić (2023)This paper presents an analysis of the influence of burden deviation from the designed one on the intensity of blasting vibrations through the use of laboratory and field examinations. By definition, the burden represents the shortest distance from the axis of an explosive column charge to the free surface. It should be measured along the entire hole length, although, in practice, it is often measured only on the bench surface as the shortest distance from the axis of the ...Stefan Milanović, Lazar Kričak, Milanka Negovanović, Nikola Simić, Jovan Marković, Nikola Đokić. "Analysis of the Influence of Burden Deviation from the Designed One on the Intensity of the Blast Vibration" in Applied Sciences, MDPI AG (2023). https://doi.org/10.3390/app132312837
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Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential
The study presented in this paper assessed the multidisciplinary approach of geothermal potential in the area of the most southeastern part of the Pannonian basin, focused on resources utilization. This study aims to present a method for the cascade use of geothermal energy as a source of thermal energy for space heating and cooling and as a resource for balneological purposes. Two particular sites were selected—one in a natural environment; the other within a small settlement. Geothermal resources come ...геотермална енергија, Панонски басен, геотермална каскада, енергетска ефикасност, бањски центри, балнеологија, биоклиматска архитектура, стратегије пасивног дизајнирања, модуларни објектиNataša Čuković-Ignjatović, Ana Vranješ, Dušan Ignjatović, Dejan Milenić, Olivera Krunić. "Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential" in Applied Sciences-Basel, МDPI (2021). https://doi.org/10.3390/app11062691
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Geotehnički uslovi izgradnje metro stanice "Francuska" u Beogradu
Lazar Pavlović (2024)Cilj ovog rada je analiza stabilnosti dijafragme, predviđene kao mere za obezbeđenje dubokog iskopa od zarušavanja okolnog tla koji se izvodi na mestu buduće metro stanice “Francuska” koja je planirana u okviru prve faze, prve linije metroa u Beogradu – sekcije „Centar“. U okviru numeričke analize je izvršena analiza stabilnosti konzolne dijafragme kao i dijafragme sa ankerom – slobodno oslonjene dijafragme, kako bi se moglo napraviti poređenje dobijenih vrednosti koje se odnose na dubinu fundiranja koja je potrebna da ...... > > > > > > > > ] _ x N K K _ x N N N K K _ x _ N p . D p p oOs p ŠČop ŠR p O P Čs p M p . s.p Čp p) ŠČ P Šs Os p SŠoE p (:5 > p 7 P P | >>—= 4s——__ _4_ —> __ NPV_ E= ___4 __> A,?NPV > 4 P 4 > 4 P 4 | 4 P 4 P 4 P 4 P 4 E 4 > 4 P 4 P HH WEKIM Nc=10 O – I ı — - – — – – K — —— | | ij I%J 54 =—_—_ 7_ ...
... karateristika stenskih masa/tla u zoni etaže. 13 Proračun koeficijenta filtracije Je izvršen na osnovu sledeće Jednačine: C M k= —·log — t O H, gde je: k — koeficijet filtracije, C – konstanta koja zavisi od dužine ispitivanog intervala (L) i poluprečnika bušotine (r), Ho – statički ...
... klasifikacija [u] |} [u |} CU |Mv(100-200) E k na geotehničkom preseku kN/m? | kN/m*| _ _* kN/m? i kN/m? |__kN/m? kN/m? m/s s<|Z zZ|u| |- FaA E 8 = 4 n Nasute naslage: građevinski šut i otpadni materijal sa prašinasto-peskovitom ispunom. M|Z| | PPP K i > > “ |E 20,0 - 25-27| 5-15 - - 5000–15 ...Lazar Pavlović. Geotehnički uslovi izgradnje metro stanice "Francuska" u Beogradu, 2024
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Differently shaped nanocrystalline (Fe, Y)3O4 and its adsorption efficiency toward inorganic arsenic species
Biljana P Dojčinović, Boštjan Jančar, Lotfi Bessais, Aleksandar Kremenović, Nataša P Jović-Jovičić, Predrag T Banković, Dalibor M Stanković, Miloš Ognjanović, Bratislav V Antić (2019)Herein we report effects of partial substitution of Fe3+ by Y3+ in magnetite (Fe3O4) on morphology and inorganic arsenic species adsorption efficiency of the Fe3−xYxO4 nanoparticles formed. The series of Fe3−xYxO4 (x=0.00, 0.042 and 0.084, labeled as Y00, Y05 and Y10, respectively) was synthesized using co-precipitation followed by microwave-hydrothermal treatment (MW) at 200°C. With increase of yttrium content(xvalue), both the morphological inhomogeneity of the samples and the fraction of spinel nanorods as compared to spinel pseudospherical particles increased. By ...Biljana P Dojčinović, Boštjan Jančar, Lotfi Bessais, Aleksandar Kremenović, Nataša P Jović-Jovičić, Predrag T Banković, Dalibor M Stanković, Miloš Ognjanović, Bratislav V Antić. "Differently shaped nanocrystalline (Fe, Y)3O4 and its adsorption efficiency toward inorganic arsenic species" in Nanotechnology, IOP Publishing (2019). https://doi.org/10.1088/1361-6528/ab3ca2
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Geomagnetna bura kategorije G5 u maju 2024. godine
Magdalena Marčeva (2024)Zemlja poseduje magnetno polje, koje je generisano u njenom spoljašnjem jezgru. Magnetno polje Zemlje je konstantno izloženo dejstvu sunčevog magnetnog polja i zračenja koje se sa Sunca emituje. Naelektrisane čestice koje pristižu sa Sunca stupaju u interakciju sa magnetosferom, što dovodi do različitih geomagnetnih poremećaja.Geomagnetna aktivnost direktno je proporcionalna intenzitetu sunčevog zračenja koje dolazi do Zemlje. Pod uticajem sunčevog korpuskularnog zračenja dolazi do pojave geomagnetnih bura koje su praćene porastom intenziteta magnetnog polja.Količina i jačina dolaznog sunčevog zračenja zavisi ...... Oceanic and 4tmospheric 4dministration- NOAA). Pri tome vrednosti koje odgovaraju svakoj kategoriji magnetne bure su: GI:K=0-5 ; G2:K=6 ; G3:K=7 ; G4:K= ; G5:K=9) Oluje nivoa G1 se smatraju najslabijim, gotovo da nemaju uticaja na rad električnih uređaja, i njhova frekvencija pojavljivanja tokom ...
... maksimalan K indeks Kmax=9. KLASA B suumerene magnetne bure i kod njih je amplituda SSC impulsa izražena. Početna i glavna faza traju različito, od veoma kratkotrajnih do dugotrajnih. Maksimalna amplituda varijacija registrovanih za vreme bure je od 100 nT do 200 nT, a vrednost maksimalanog K indeksa ...
... e o Sunčevog vjetra Sloj plazme OtVOrI < | _ | Van Allenovi | pojasi zračenja Neutralni sloj Zemljina atnosfera o 1Ooikaa unčev Vjetar K. Magnetopauza Slika 2.2.2. Struktura magnetosfere (https://upload.wikimedia.org/wikipedia/hr/thumb/8/8e/Magnetosfera_1.png/350px- Magnetosfera_1 ...Magdalena Marčeva. Geomagnetna bura kategorije G5 u maju 2024. godine, 2024
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Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions
Martin Fabián, Bratislav Antić, Vladimír Girman, Milica Vučinić-Vasić, Aleksandar Kremenović, Shigeru Suzuki, Horst Hahn, Vladimír Šepelák (2015)A series of nanostructuredfluorite-type Ce1–xYxO2–δ (0rxr0.35) solid solutions, prepared via highenergy milling of the CeO2/Y2O3mixtures, are investigated by XRD, HR-TEM, EDS and Raman spectroscopy. For thefirst time, complementary information on both the long-range and short-range structural features of mechanosynthesized Ce1–xYxO2–δ, obtained by Rietveld analysis of XRD data and Raman spectroscopy, is provided. The lattice parameters of the as-prepared solid solutions decrease with increasing yttrium content. Rietveld refinements of the XRD data reveal increase in microstrains in the host ceria ...Martin Fabián, Bratislav Antić, Vladimír Girman, Milica Vučinić-Vasić, Aleksandar Kremenović, Shigeru Suzuki, Horst Hahn, Vladimír Šepelák. "Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions" in Journal of Solid State Chemistry, Elsevier BV (2015). https://doi.org/10.1016/j.jssc.2015.06.027