Претрага
603 items
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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... temperature of optimum solubil- ization (Figure 2). [_=_Jphase boundary , (or 30) / 20 of system with C, E, jE o phase boundary 10 / LC of system with C„E, j| ——— l utensol ON 50 T( 'C ) fFigure 2. Phase diagrams of wafer/toluene/CyoEs and water/toluene/Lutenso/ ON 50 at equa!l mass fractions ...
... [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, J. Allgaier, G. Gompper ...
... as a co- surfactant or a hydrophilic alcohol ethoxylate (C+gE+Ho) as an efficiency booster [28]. MATERIALS AND METHODS Toluene (purity 99% by GC) was purchased from Merck Schuchardt (Germany). Octaethylene gly- col decylether (C+)jEa, octaethyleneoxide decylether) with purity higher than ...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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Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics
Maja Milošević, Predrag Dabić, Sabina Kovač, Lazar Kaluđerović, Mihovil Logar. "Mineralogical study of clays from Dobrodo, Serbia, for use in ceramics" in Clay Minerals, Mineralogical Society (2019). https://doi.org/10.1180/clm.2019.49
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Analysis of the correlation between modified secondary and primary compression index on the example of old municipal waste in Serbia
The paper presents the results related to the determination of the index of primary and maximum and minimum indices of secondary compression, i.e. modified primary and secondary compression indices (Cc, Cc', C'min, C'max), obtained by laboratory testing of artificially prepared municipal waste samples (three series of 9 samples in total) in an oedometer apparatus with a diameter of 20 cm. Old municipal waste was used, which was taken from two landfills in Serbia, one that is ...municipal solid waste, secondary compression index, ratio of modified secondary and primary compression indexDragoslav Rakić, Irena Basarić Ikodinović, Jovana Janković, Tina Đurić. "Analysis of the correlation between modified secondary and primary compression index on the example of old municipal waste in Serbia " in 20th International Conference on Soil Mechanics and Geotechnical Engineering (ICSMGE), ICMS Australasia (2022)
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A survey of greenhouse gases production in central European lignites
Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska (2021)... Goraj b, Izabela Śnieżyńska c, Aleksandra Krążała c, Artur Banach b, Ivica Ristović d, Mirosław Słowakiewicz c,e, Zofia Stępniewska f a Institute of Agrophysics, Polish Academy of Sciences, ul. Doświadczalna 4, 20-290 Lublin, Poland b Institute of Biological Sciences, The John Paul II Catholic University ...
... W 2 B C B - W 1 B C B - W 2 H C 4 H C l o m n ( n oitc u d or p 4 ss a m yr d g 1- y a d 1- ) 0.0 0.2 0.4 0.6 60.0 80.0 100.0 120.0 K B R V LN -W 1 V LN -W 2 K N N -W 1 K N N -W 2 TC B - W 1 TC B - W 2 B C B - W 1 B C B - W 2 O C 2 O C l o m n( ...
... emissions from the aban- doned mines. • Detritic lignites show the potential to serve as a source of coalbed methane. G R A P H I C A L A B S T R A C T a b s t r a c ta r t i c l e i n f o Article history: Received 2 May 2021 Received in revised form 2 August 2021 Accepted 5 August 2021 Available online ...Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska. "A survey of greenhouse gases production in central European lignites" in Science of The Total Environment, Elsevier (2021). https://doi.org/10.1016/j.scitotenv.2021.149551
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Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia
Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević (2020)Nikola Burazer, Aleksandra Šajnović, Nebojša Vasić, Milica Kašanin-Grubin, Dragana Životić, João Graciano Mendonça Filho, Predrag Vulić, Branimir Jovančićević. "Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia" in Marine and Petroleum Geology, Elsevier BV (2020). https://doi.org/10.1016/j.marpetgeo.2020.104252
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Implementation of alternative forecasting hydrodynamic during designing of mines defense system against groundwater on opencast mine field C example
Polomčić Dušan, Bajić Dragoljub, Ilić Zoran. "Implementation of alternative forecasting hydrodynamic during designing of mines defense system against groundwater on opencast mine field C example" in Proceedings of the 11th International Opencast Mining Conference, Zlatibor, Serbia, 15-18 October 2014, Belgrade:Yugoslav Opencast Mining Committee (2014): 321-338
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Допринос одређивању безопасног растојања при извођењу минирања
... 23KHBOTHYy CPEJIMHY H FPAĐEBHHCKE OBSJEKTE, Macrep pan, PT Đ Beorpan, 2012. TpajkoBHh C.; CnmMMak IIL; JIyroBam C.;,TEXHHMKA MHPAZĐA H 180 IIOTPECH, Kuwmpra, 2005. PIOD Beorpaj, [4] TpajkopHh C.; JIyroBanu C.; 3AIIITHTA OJ MHHMPAĐA, Kmpra, Beorpaj, 2014. PIO [5] Pakuih A.; CEH3MHMKA ...
... omrehema OKOJIHHX O00jekaTa. 5. IHTEPATyYPA [1] TpajkoBHh C.; Bajah C.; CTyJIHJA CEM3MHUKOLI JIEJCTBA HA OKOJIHE IPAĐEBHHCKE OBJEKTE KAO IIOCJIE/IHIIAT H3BOĐEĐA [2 [3 — — MHHHPAĐA HA IIK „KAMAJPb" KOJI MHOHBMITE, (C) – Orykryc 032, Mwauak, 2022. Panemah M.; AHAJIHM3A VTMHIIAJA ...
... THIIHHa /lcjcrBo occha Bpano Ma:jH 0poj JbynH, H1H CaMO OHH KOJH ra OucKyjy Edekar ocehajy MHorH Jby/)H, uy]c CČ 3BČKCT IIpO3OpcKoT cTakJIa Ocumame Maitrepa, onrrehepba Ha 3rpajnaMa y c)14G0OM cTaBby 30,00+60,0 60,0+120,0 240,0+480,0 IX IIojaBa d(MHHX IrpcHHHa y MajHrepy, omrehema darpama ...Slobodan Trajković, Sanja Bajić, Ivan Krsmanović. "Допринос одређивању безопасног растојања при извођењу минирања" in ДИТ : Друштво истраживање технологије (2023)
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A hybrid model for forecasting groundwater levels based on fuzzy C-mean clustering and singular spectrum analysis
Polomčić Dušan, Gligorić Zoran, Bajić Dragoljub, Cvijović Čedomir. "A hybrid model for forecasting groundwater levels based on fuzzy C-mean clustering and singular spectrum analysis" in Water 7 no. 9, Basel:Multidisciplinary Digital Publishing Institute (2017): 541. https://doi.org/10.3390/w9070541
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Палеомагнетски резултати из Тимочког магматског комплекса, Источна Србија
... током првог грејања могу препознати два магнетична минерала, један на 409°C, други на Киријевој тем‐ ператури магнетита, на 580°C. Код хлађења, као и током поновног грејања и хлађења прва магнет‐ на фаза се појављује на 300°C, док магнетит остаје стабилан. Слично понашање је примећено то ...
... g the first heating two magnetic minerals can be recognized, one at 409°C , the other at the Curie‐point of the magnetite, at 580°C. On cooling and during repeated heating and cooling the first magnetic phase appears at 300°C., while magnetite remains stable. Similar behaviour was observed during ...
... једну компоненту или више компненти реманентне магнетизације. Током термалне демагнетизације узорци су изгубили ПРМ углавном између 580°C и 620°C што указује да је носиоц магнетизације или магнетит или оксидовани магнетит. Ово је такође доказано експериментима за одређивање магнет ...Весна Лесић, Емо Мартон, Драган Лукић, Весна Цветков. "Палеомагнетски резултати из Тимочког магматског комплекса, Источна Србија" in Knjiga apstrakata 17. Kongres geologa Srbije, Vrnjačka Banja 17-20. maj 2018., Српско геолошко друштво (2018)
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Influence of Post-Synthesis Treatments on the Properties of Brushite/Monetite Powders
Željko Radovanović, Lidija Radovanović, Aleksandar Kremenović, Đorđe Janaćković, Rada Petrović (2022)Dicalcium phosphate (DP) materials, of which brushite and monetite were the most known, have been intensively studied for several decades because of excellent resorptive and osteoconductive properties that can satisfy the requirements needed for various medical applications, such as bone cements, coatings of metallic implants and bone grafts ...Željko Radovanović, Lidija Radovanović, Aleksandar Kremenović, Đorđe Janaćković, Rada Petrović. "Influence of Post-Synthesis Treatments on the Properties of Brushite/Monetite Powders " in Second International Conference on Electron Microscopy of Nanostructures ELMINA 2022, August 22nd–26th, 2022, Belgrade, Serbia, Serbian Academy of Sciences and Arts Knez Mihailova 35, 11000 Belgrade, Serbia (2022)
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Multi - Attribute Technological Modeling of Coal Deposits Based on the Fuzzy TOPSIS and C - mean Clustering Algorithms
Gligorić Miloš, Gligorić Zoran, Beljić Čedomir, Torbica Slavko, Štrbac-Savić Svetlana, Nedeljković Jasmina (2016)Gligorić Miloš, Gligorić Zoran, Beljić Čedomir, Torbica Slavko, Štrbac-Savić Svetlana, Nedeljković Jasmina. "Multi - Attribute Technological Modeling of Coal Deposits Based on the Fuzzy TOPSIS and C - mean Clustering Algorithms" in Energies 9 no. 12, Basel:MDPI AG, Basel, Switzerland (2016). https://doi.org/10.3390/en9121059
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Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit
... the value vc found in such a way, in accordance with the formula (7), the parameter n is obtained as: c c v R vn , (16) which will be marked wit n1, so according to the formula (8): c c v R vn1 . (17) Now, with value n1 found like this, the formula (11) is used to determine the new values ...
... vv vv 1 1 . (15) Sa ovako nađenom vrednošću vc, u skladu sa formulom (7), dobijamo parameter n kao: c c v R vn , (16) koji ćemo označiti sa n1, pa prema formuli (8) imamo: c c v R vn1 . (17) Sada, sa ovako nađenom vrednošću n1 koristimo formulu (11) za određivanje nove vrednosti ...
... is at least one c, a < c < b, for which it is: cf ab afbf . In this case, given that the velocity is continuous, decreasing and convex func- tion on [R1, Rs], and differentiable on an interval (R1,Rs), so the Lagrange’s theo- rem is valid for it: ),( R- )v(R-)( 1 1 c s s Rv R Rv ...Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić. "Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit" in Mining and Metallurgy Engineering Bor, Bor : Mining and Metallurgy Institute Bor (2015). https://doi.org/10.5937/MMEB1503053L
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Mesozoic carbonate rocks in Serbia used as dimension stone
Vesna Matović, Tijana Vojnović Ćalić (2016)The building industry in Serbia uses, to a great extent, imported natural stone for architectural purposes. The significance of local deposits, particularly limestones, is not adequately perceived despite the country’s abundance of these valuable resources. Therefore, this study focuses on Serbia’s Mesozoic carbonate rocks, specifically on the deposits of four selected quarries: Klisura, Skrzut, Struganik, and Tisnica. The quality and prospects of the application of these limestones has not yet been the subject of a detailed, comprehensive investigation. Therefore, ...... [45]] OI _ 110 _ _ 069% tPLL I c 611 bi4l |4| 00 [53] 0 0 0 6 089% t-LL 6 1 _ [45]] l44 _ ILO _ _ 0O/9% CLL I c _ bi4l |4| _ [53] _ _ 089% T-LL _ 06 t6 611 00 800 0 x 09970 C I - D 4 ! 91 091 iil 00 0 0 LO ...
... 6 9 | 1I-Di 97c s 4l is \J tPcO x x 069C O I - D c O LI 011 | 0 00 910 LI O c ' 089% 67Di ba:00 6 1 861 1Ic 00 0 0 0 O I 069% D [ 61 t0C LO 00 910 x O c O I L D _ _ ii ttl _ I K x O I 0 0 6 9-Di _ ...
... pUv SJOI|}nO pojlui() X [ SPI [43] 9I [4] cO t 0 0 6 O 7 - 9I-LS ttl c [44] il 60 tPrO0 l! 0 0 6 0997 - Z/I-.LS - 4 PLI LLI [5:]] 00 610 L c O c OS9% - 9L-LS H J 091 JA! 181 00 LUO I 0 0 6 O/0% - CI-LS [4[44 il ...Vesna Matović, Tijana Vojnović Ćalić. "Mesozoic carbonate rocks in Serbia used as dimension stone" in Bulletin of Engineering Geology and the Environment, Springer Science and Business Media LLC (2016). https://doi.org/10.1007/s10064-015-0722-0
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Size–strain line-broadening analysis of anatase/brookite (TiO<sub>2</sub>)-based nanocomposites with carbon (C): XRPD and Raman spectroscopic analysis
Aleksandar Kremenović, Mirjana Grujić-Brojčin, Nataša Tomić, Vladimir Lazović, Danica Bajuk-Bogdanović, Jugoslav Krstić, Maja Šćepanović (2022)A size-strain line-broadening analysis of the XRPD patterns and Raman spectra for two anatase/brookite (TiO2)-based nanocomposites with carbon (C) was carried out and the results compared with those of a similar sample free of carbon. The crystal structures and microstructures of anatase and brookite, as well as their relative abundance ratio, have been refined from XRPD data by the Rietveld method (the low amount of carbon is neglected). The XRPD size-strain analysis resulted in reliable structure and microstructure results ...Materials Chemistry, Metals and Alloys, Atomic and Molecular Physics, Optics, Electronic, Optical and Magnetic MaterialsAleksandar Kremenović, Mirjana Grujić-Brojčin, Nataša Tomić, Vladimir Lazović, Danica Bajuk-Bogdanović, Jugoslav Krstić, Maja Šćepanović. "Size–strain line-broadening analysis of anatase/brookite (TiO2)-based nanocomposites with carbon (C): XRPD and Raman spectroscopic analysis" in Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials, International Union of Crystallography (IUCr) (2022). https://doi.org/10.1107/S2052520622001731
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Supstitucione reakcije Pd(II) kompleksa sa biološki važnim biomolekulima
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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Development of integrated fuzzy model for mine management optimization
Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić (2023)... .... My) = V|(M > Mi)A(M > M»)A·--A(M > M)} = minV(M > Mi). Summing; everything; up yields c (Aij)=minV (S; > %), k=1,2,...,m;k X i. Step 4. Weight priority vectors are defined as W!= (c' (4i),C(A>),...,“ (An)T) where A4;(i= 1,2,...,n). 1416 M. Čelebić, S. Bajić, D. Bajić et al. Step 5 ...
... normalization method [11]. 'The result is a normalized weight priority vector in the form of a non-fuzzy number, whose maximum value is 1: W = (c (Ax),c(4>2),...,c (A„)T). Step 6. The alternatives are compared against each criterion individually. Thus, new matrices are defined and then the weight priority ...
... that V(]Wl > ]Wz) =LlL if si > 5 1, if 2 Ž ı V (M> > Mi) = hgt(My n M>) = a (e) NA f hzd (sa – d0) —(sy — ) where c is the ordinate of the highest intersection in point C' between membership functions ag, and /M5- Both V (Mi > M») and V (M» > Mh\) are required to compare Mi and Mo. The ...Miodrag Čelebić, Sanja Bajić, Dragoljub Bajić, Dejan Stevanović, Duško Torbica, Vladimir Malbašić. "Development of integrated fuzzy model for mine management optimization" in Comptes rendus de l'Académie Bulgare des Sciences (2023)
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Sinteza i strukturna karakterizacija mikroporoznih arsenata i fosfata
Sabina Z. Kovač (2015-09-28)Predmet rada i istraživanja ove doktorske disertacije su sinteza i strukturnekarakteristike novih kristalnih arsenata i fosfata koji sadrže Mg, K, Ca, Mn, Fe, Co, Ni,Cu, Zn, Sr, Ba i druge katjone. U strukturama arsenata i fosfata, AsO4- i PO4-tetraedrinajčešće se vezuju sa tetraedarski ili oktaedarski koordinisanim katjonima prelaznihmetala formirajući otvorene strukture (slojeve ili 3D mreže) sa širokim opsegomrazličitih topologija. U šupljinama ili porama u obliku povezanih ili nepovezanihkanala, tunela, kaveza i međuslojnog prostora mogu se ugraditi različiti vanmrežni joni(obično ...... Haseth, J. A. (1986) ”Fourier Transform Infrared Spectroscopy”, John Wiley and Sons, New York. Sinteza i strukturna karakterizacija mikroporoznih arsenata i fosfata Sabina Z. Kovač 153 67. Harel, M., Knobler, C., McCullough, J. D. (1969) Inorg. Chem. 8, 11–13. 68. Harrison ...
... [1] a = 7,075 Å c = 9,023 Å V = 451,65 Å3 a'≈ 2a b' ≈ 2a c' ≈ c V' ≈ 4V a' ≈ a‒b b' ≈ a+b c' ≈ c V' ≈ 2V a' ≈ a‒b b' ≈ a+b c' ≈ c V' ≈ 2V a' ≈ 2a b' ≈ c c' ≈ 2a V' ≈ 4V a' ≈ 2a‒2b b' ≈ 2c c' ≈ 2a γ ≈ 135 V' ≈ 8V a' ≈2a b' ≈ 2a c' ≈ 2c γ ≈ 90 V' ...
... drugi rotacijom oko jednostrukih veza nazivaju se konformacije tog molekula. Približna dužina veze C‒C iznosi 1,52, a dužina veze C‒N 1,47 Å (Cooke et al., 2013) (slika 1). Kad je torzioni ugao N‒C‒C‒N približno 180 º konformacija molekula naziva se anti konformacija, a kad je oko 60 º naziva se ...Sabina Z. Kovač. "Sinteza i strukturna karakterizacija mikroporoznih arsenata i fosfata" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2015-09-28)
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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 ...... “ c RRRGAAA -OO EO j e= /;n_ — - r - E Slika 8. Prikaz visokoplastične gline sa trase fruškogorskog koridora (Hidrozavod DTD, 2021.) 18 Rezultati ispitivanja dati su u tabeli 1. Tabela 1. Rezultati laboratorijskih ispitivanja, (Hidrozavod DTD, 2021.) USCS Redni broj , Dubina (m) C (kPa) ...
... F]=29,39k—“2' 28 m 24 C (kPa) - V je poznat 3.5 j 9 E 3 •• jud a 3 2.5 Š e Vrednostiparametara = < Ž Normalna raspodela [-] a 15 ——Xmean el XI E OW —'š 1 L_ • —— Xmean Ž XI = OW o 5 0.5 [- 0 -60 -40 -20 0 20 40 60 80 100 Vrednosti kohezije c (kN/m?) Slika 11. Grafički ...
... * F]: 30,55 ' 28 m C (kPa) - V je nepoznat 3.5 |i r3] E 3 •• H a D 2.5 Š e Vrednostiparametara = r ? Normalna raspodela o [ 1.5 ——Xmean i | š Xlow *rš 1 • d d ——Xmean Ž XI = OW o 5 0.5 [ 0 -60 -40 -20 0 20 40 60 80 100 Vrednosti kohezije c (kN/m?) Slika 12. Grafički ...Božidar Rudnjanin. Određivanje parametara smičuće čvrstoće tla primenom statističke metode, 2024
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Low-temperature phase transition and magnetic properties of K3YbSi2O7
Predrag Dabić, Volker Kahlenberg, Biljana Krüger, Marko Rodić, Sabina Kovač, Jovan Blanuša, Zvonko Jagličić, Ljiljana Karanović, Václav Petříček, Aleksandar Kremenović (2021)alkalni silikati elemenata retkih zemalja, fazni prelazi, magnetne karakteristike, razdvajanje kristalnog polja, silikati lantanica... M. D. & zur Loye, H.-C. (2016a). Solid State Sci. 51, 59–65. Latshaw, A. M., Wilkins, B. O., Hughey, K. D., Yeon, J., Williams, D. E., Tran, T. T., Halasyamani, P. S. & zur Loye, H.-C. (2015c). CrystEngComm, 17, 4654–4661. Latshaw, A. M., Yeon, J., Smith, M. D. & zur Loye, H.-C. (2016b). J. Solid State ...
... R. & Zur Loye, H.-C. (2017). J. Am. Chem. Soc. 139, 14743–14748. O’Keeffe, M. & Hyde, B. G. (1978). Acta Cryst. B34, 27–32. O’Keeffe, M. & Hyde, B. G. (1996). Crystal Structures I. Patterns and Symmetry. Washington D. C.: Mineralogical Society of America. Orobengoa, D., Capillas, C., Aroyo, M. I. & ...
... surround the central six-membered ring [Figs. 1(c) and 1(d)]. The O� � �O distances in the smaller equilateral triangles are ’ 2.66 Å, whereas in the larger ones values of ’ 3.06 Å are observed. The symmetry of a single oxygen sheet is trigonal. Figs. 1(c) and 1(d) show a comparison between the ps ...Predrag Dabić, Volker Kahlenberg, Biljana Krüger, Marko Rodić, Sabina Kovač, Jovan Blanuša, Zvonko Jagličić, Ljiljana Karanović, Václav Petříček, Aleksandar Kremenović. "Low-temperature phase transition and magnetic properties of K3YbSi2O7" in Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials, International Union of Crystallography (IUCr) (2021). https://doi.org/10.1107/S2052520621006077
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Industrial Waste Heat Potential for Meeting Heat Demand in the Republic of Serbia
Dejan Ivezić, Marija Živković (2023)Finalna potrošnja energije u industrijskom sektoru čini skoro 25% finalne potrošnje energije u Republici Srbiji. Procenjuje se da je 50-70% potrošnje energije u industriji namenjeno proizvodnji toplotne energije u različitim industrijskim procesima. Deo proizvedene toplotne energije se nepovratno gubi kao energija odvedena u okolinu: prenosom toplote kroz zidove procesne opreme, dimnim gasovim, otpadnim vodama itd. Korišćenjem otpadne toplote povećava se efikasnost korišćenja primarne energije i smanjuje ukupna potreba za energijom. Otpadna toplota se može koristiti u samom industrijskom objektu ...Dejan Ivezić, Marija Živković. "Industrial Waste Heat Potential for Meeting Heat Demand in the Republic of Serbia" in Energija, ekonomija, ekologija (2023). https://doi.org/10.46793/EEE23-1.17I