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Упит dcterms_creator_txt:John C. Mutter

775 items

  • Structural and microstructural study of brookite based TiO2 nanocomposites with carbon black (C)

    Aleksandar Kremenović, Mirjana Grujić-Brojčin, Nataša Tomić, Maja Šćepanović (2022)
    Structural and microstructural properties of TiO2-based nanocomposites with carbon black (C), synthesized by sol-gel-hydrothermal method, have been studied by XRPD and Raman scattering. Detailed size-strain analyses of XRPD and Raman scattering results are presented in order to investigate the influence of C content on brokite and anatase phase formation. The XRPD size-strain analyses have resulted in reliable structure and microstructure results for both anatase and brookite and their relative abundance ratio has been refined by Rietveld method. The brookite ...

  • Značaj geografske širine za lociranje uzročnika magnetnih anomalija kod prospekcije arheoloških lokaliteta

    Vesna Cvetkov (2020)
    ... and Remote Sensing. Cambrid- 24 C u r re n t i n t e rd i s c i p l i n a r y s t u d i e s i n t e c h n o l o g y i n t h e a rc h a e o l o g y o f t h e s o u t h - e a s t E u ro p e ge University Press, Cambridge. Tsokas, G. N., Papazachos, C. B. Loucoyannakis, M. Z., Karousova ...
    ... magnetne anomalije doprinelo je da magnetometrija postane značajan alat u arheologiji. Smatra se da su istra- 16 C u r re n t i n t e rd i s c i p l i n a r y s t u d i e s i n t e c h n o l o g y i n t h e a rc h a e o l o g y o f t h e s o u t h - e a s t E u ro p e živači Laboratorije ...
    ... grobovi, rovovi i ostale arheloške strukture veza- ne za iskopavanje i premeštanje gornjih slojeva tla. 18 C u r re n t i n t e rd i s c i p l i n a r y s t u d i e s i n t e c h n o l o g y i n t h e a rc h a e o l o g y o f t h e s o u t h - e a s t E u ro p e Otklanjanje asimetrije ...

  • Actual contamination of the Danube and Sava rivers at Belgrade (2013)

    Milan Antonijević, Marija Arsović, Josef Cáslavský, Vesna Cvetković, Predrag Dabić, Mladen Franko, Gordana Ilić, Milena Ivanovic, Nevena Ivanović, Milica Kosovac, Dragana Medić, Slobodan Najdanović, Milica Nikolić, Jovana Novaković, Tatjana Radovanović, Djurdjina Ranić, Bojan Šajatović, Gorica Špijunović, Ivana Stankov, Jelena Tošović, Polonca Trebse, Olivera Vasiljević, Jan Schwarzbauer (2014)
    rečni sistemi, stanje zagađenja, organski zagađivači, teški metali, skrining analize, non-target screening
    ... was 3 min hold at 60 °C, 60 °C to 300 °C at a rate of 3 °C min-1 and a 20 min hold at 300 °C. The injection was performed via a split/splitless injector at 270 °C; the splitless time was 60 s. The carrier gas was helium at a velocity was 2 cm s-1 and a source temperature of 200 °C. The ____________ ...
    ... 45. C. Yrieix, C. Gonzalez, J. M. Deroux, C. Lacoste, J. Leybros, Water Res. 30 (1996) 1791 46. H. M. Kuch, K. Ballschmiter Environ. Sci. Technol. 35 (2001) 3201. ___________________________________________________________________________________________________________________________ (C) 2014 ...
    ... J. Sarasa, M. C. Martinez, M. P. Ormad, M. S. Mutuberria, J. L. Ovelleiro, Water Res. 27 (1993) 1167 4. L. Guzzella, A. Gronda, Acqua Aria 6 (1995) 641 5. I. R. Santos, E. V. Silva-Filho, C. E. Schaefer, M. R. Albuquerque-Filho, L. S. Campos, Mar. Pollut. Bull. 50 (2005) 85 6. C. F. Mason, Biology ...

  • 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 ...
    Pharmaceutical Science
    ... transition temperature of the maximally freeze-concentrated solution (Tg'), liquid samples were cooled from 25 "C to -80 "C at a rate of -0.5 "C/min and then heated to 50 "C at a rate of 10 "C/min. The value of Tg' was characterized as the midpoint of the glass transition. This analysis was performed ...
    ... (labeled as placebo). To characterize the final lyophilizates, samples were cooled from 25 "C to -30 "C (cooling rate 10 "C/min), held at -30 "C for one minute, and then heated to 230 "Cata rate of 10 "C/min. All measurements were performed using DSC1 (Mettler Toledo, Switzerland) under a nitrogen ...
    ... samples were frozen at -80 "C for 3 h and then freeze- dried in a Beta 1–8 K freeze dryer (Martin Christ, Osterode am Harz, Germany) for 24 h, with primary drying at -10 "C and 0.340 mbar and secondary drying at 25 "C. Samples were stored in sealed vials at 25 "C, and physicochemical charac ...

  • Утицај промене нивоа подземне воде за услове плитког фундирања у крупнозрном тлу

    Милана Мичета (2024)
    Подземне воде представљају изузетно важан природни ресурс, као и важну компоненту система, којим је представљено тло. У складу са тим, приликом пројектовања плитких темеља на крупнозрном тлу, односно приликом анализе граничне носивости и слегања, треба узети у обзир и утицај воде. Верује се да ниво подземне воде значајно смањује носивост тла, док се слегања значајно повећавају. Terzaghi (1943) је први сугерисао да се потапањем масе тла, његова носивост смањује за половину, док се слегање удвостручује. Циљ овог рада је ...
    ниво подземне воде, плитко фундирање, крупнозрно тло, гранична носивост, слегање
    ... m hi= 2.8m eOJbHHa cuoja bs= 1.1 m y=20.6/10.6 kN/m* y=20.7/10.7 kN/m?* sanpeMHHcka TexkuHa | - y=19.2/0.2 kN/m? y=20/10 kN/m? KoxeaHja c=4kPa c=3kPa c=0 c=0 yrao yHyTpatiber _50gq0o _9o =349 =35 9 Tpema q=28 q= 27 q= 34 q= 35 OTIIOp BpXa KOHyCca q= 1500 kPa q-= 3000 kPa q-= 5000 kPa q= 7500 ...
    ... 3.3 m eOJbHHa cuoja bs= 1.1 m hi= 2.8m y=20/10 kN/m? y=20.6/10.6 kN/m* y=20.7/10.7 kN/m?* aarpeMHHcKa Te)kHHa_ y=19.2/0.2 kN/m* KoxeaHja c=4kPa c=3kPa c=0 c=0 yrao yHyTpatiber _50gq0o _9o =349 =35 9 Tpema q=28 q= 27 q= 34 q= 35 OTIIOp BpXa KOHyCca q= 1500 kPa q-= 3000 kPa q-= 5000 kPa q= 7500 ...
    ... 6/10.6 kN/mš | y= 20.7/10.7 kN/m3 c=4kPa c=3 kPa 0 0 q= 289 q= 279 q= 349 q= 359 B=1m D=1.5m qr = c· N.s.dci, +y · Dy · Nasqdaqiq + 0.5 · y · B · N,sy,dyLy “akTopH HOCHBOCTH: N. = (Nq, — 1) * ctg o == (13.2 – 1) ·ctg 27* = 12.2 · 1.96 N. = 23.91 c Na = tg?(45 + o/2) · e"180 = tg?(45 ...

  • Hyperpycnites within the Devonian-Carboniferous flysch of the Carpatho-Balkanides (Kostadinovica, eastern Serbia)

    Miloš Radonjić (2020)
    This study presents new discoveries of vascular plants and the trace fossil Dictyodora liebeana (GEINITZ) from the Devonian–Carboniferous Kučaj-Zvonce flysch of the Carpatho-Balkanides and the implications of this fossil association for its sedimentary setting. The occurrence of the described plant debris in a deep-marine environment indicates the presence of hyperpycnites within the siliciclastic turbidites exposed at the Kostadinovica locality. The sedimentological data and the characteristics of the fossil material support the proposed model in which the sediment was at ...
    Mississippian flora, Dictyodora liebeana (GEINITZ), hyperpycnites, Kučaj-Zvonce flysch, Carpatho-Balkanides
    ... part. (b) Upper part of unit B near the transi- tion into unit C. Two massive sandstone beds are marked as B23 and B25 and are truncated by normal faults (Fn). Figure 6. Sedimentary characteristics of unit C. (a) The central part of unit C showing repetition of thin siltstone and sandstone layers. Note ...
    ... chips are highlighted by white lines. (c) A polished rock slab showing the structures of siltstone and sandstone layers. (d) A thin-section viewed in non-polarized light showing the plant detritus above the parallel laminated siltstones. G eo lo g ia C ro a tica Radonjić Miloš: Hyperpycnites ...
    ... aforementioned level is divided into brown to light brown in sandstones and olive gray to gray in fine-grained levels. 3.3. Unit C (interval: ~ 15 to 25.25 m of the column) Unit C of the section begins above the 15 m mark of the column, from where there is a notable decrease in bed thickness, which on ...

  • A WordNet Ontology in Improving Searches of Digital Dialect Dictionary

    Miljana Mladenović, Ranka Stanković, Cvetana Krstev (2017)
    In this paper, we present a method for automatic generation of a digital resource, which connects all indirect synonyms of a dialect term to all indirect synonyms of a corresponding term in the standard language, aiming to improve the search of a digital dialect dictionary. The method uses SWRL rules defined in the Serbian WordNet ontology to identify sets of synonymous words. It also uses e-dictionaries to produce correct lemmas in standard language that users usually employ in searches. ...
    ... format. "[rule3:(?a eg:label ?b)(?a eg:also_see ?c)(?c eg:label ?e) -> (?b eg:indirectSynonymy ?7e)]" "[rule4:(?a eg:label ?b)(?a eg:verb_group ?c)(?c eg:label ?e) -> (?b eg:indirectSynonymy 7e)]" "[rule5:(?a eg:label ?b)(?a eg:hyponym ?c)(?c eg:label ?e) -> (?b eg:indirectSynonymy 7e)]" By looking ...
    ... "[rule6:(?a eg:similar_to ?c)(?a eg:label ?b)(?c eg:synonym 7d) (?d eg:label ?e) -> (?b eg:indirectSynonymy 7e)]" "[rule7:(?a eg:also_see ?c)(?a eg:label ?b)(?c eg:synonym 7d) (?d eg:label ?e) -> (?b eg:indirectSynonymy 7e)]" "[rule8:(?a eg:verb_group ?c)(?a eg:label ?b)(?c eg:synonym 7d) (?d eg:label ...
    ... eg:similar_to ?c)(?a eg:label ?b)(?c eg:also_see 7d) (?d eg:synonym ?e)(?e eg:label ?f)->(?b eg:indirectSynonymy ?f)]" "[rule11:(?a eg:verb_group ?c)(?a eg:label ?b)(?c eg:also_see 7d) (?d eg:synonym ?e)(?e eg:label ?f)->(?b eg:indirectSynonymy ?f)]" "[rule12:(?a eg:hyponym ?c)(?a eg:label ?b)(?c eg:also_see ...

  • A tool for identifying the criticality in the disordered systems with metastable dynamics

    Svetislav Mijatović, Dragutin Jovković, Sanja Janićević, Stefan Graovac, Đorđe Spasojević (2021)
    Физика кондензоване материје

  • Asbestos-Based Pottery from Corsica: The First Fiber-Reinforced Ceramic Matrix Composite

    Philippe Colomban, Aleksandar Kremenović (2020)
    Asbestos-containing pottery shards collected in the northeast of Corsica (Cap Corse) and dating from the 19th century, or earlier, have been analyzed by SEM-EDS, XRPD, FTIR and Raman microspectroscopy. Blue (crocidolite) and white (chrysotile) asbestos fiber bundles are observed in cross-sections. Most of the asbestos is partly or totally dehydroxylated, and some transformation to forsterite is observed to occur, indicative of a firing above 800 C. Examination of freshly fractured pieces shows a nonbrittle fracture with fiber pull-out, consistent with ...
    asbestos, CMC, Corsica, fiber, pottery
    ... 2004, 46, 507–527. [CrossRef] Viti, C.; Giacobbe, C.; Galtieri, A.F. Quantitative determination of chrysotile in massive serpentinites using, DTA: Implications for asbestos determinations. Am. Mineral. 2011, 96, 1003—1011. [CrossRef] Groppo, C.; Rinaudo, C.; Cairo, S.; Gastaldi, D.; Compagnoni ...
    ... ŠA 5 E E e c ČI i _ [ P r K) J Cr Ni 3 0 5000 10000 Q0 1000 2000 Energy / eV Wavenumber / cm' Figure 7. Representative EDS (left) and Raman (right) spectra recorded on some spots of sample c (see Figure 1). Materials 2020, 13, 3597 9of18 a) Fj yrj 5 > | F c -1 [n] = š ...
    ... stretching; mode at ~3600—3700 cm~-! over 450 *C (de-hydroxylation) and then the formation of forsterite at a temperature over ~500 "C, with the characteristic doublet seen at ~820–-850 cm -1. Complete de-hydroxylation requires heating above ~700 *C. Comparison of the IR patterns in Figure 3 shows ...

  • Mapping and classifying large deformation from digital imagery: application to analogue models of lithosphere deformation

    Taco Broerse, Nemanja Krstekanić, Cor Kasbergen, Ernst Willingshofer (2021)
    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
    ... the tensor square root of the right Cauchy-Green tensor C, as U = √ C. Firstly the principal values μ of C: μ1 = C11 + C22 + √ (C11 − C22)2 + 4C2 12 2 (B3) μ2 = C11 + C22 − √ (C11 − C22)2 + 4C2 12 2 (B4) From these the invariants of C and U can be calculated: IC = μ1 + μ2 I IC = μ1μ2 (B5) ...
    ... tensor—or, with respect to the deformed state E∗ —Almansi–Green strain tensor: E = 1 2 ( FT F − I ) = 1 2 ( C − I ) (23) D o w n lo a d e d fro m h ttp s ://a c a d e m ic .o u p .c o m /g ji/a rtic le /2 2 6 /2 /9 8 4 /6 1 9 5 5 2 9 b y g u e s t o n 1 9 J u ly 2 0 2 1 Mapping ...
    ... lo a d e d fro m h ttp s ://a c a d e m ic .o u p .c o m /g ji/a rtic le /2 2 6 /2 /9 8 4 /6 1 9 5 5 2 9 b y g u e s t o n 1 9 J u ly 2 0 2 1 990 T. Broerse et al. 1 1 E*= 5 (FF -I)= 5(B -I) (24) with right Cauchy—Green deformation tensor C and left Cauchy—Green deformation ...

  • Mogućnost korišćenјa toplotnih pumpi sa otpadnom toplotom iz postrojenјa za prečišćavanјe otpadnih voda kao toplotnim izvorom

    Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Boban Pavlović (2021)
    U narednom periodu se planira izgradnja nekoliko desetina sistema za prečišćavanje otpadnih voda u većim gradovima u Srbiji. Iskustva iz postrojenja koja su trenutno u radu, pokazuju da bi prečišćena otpadna voda, s obzirom na protok i temperaturu, mogla da predstavlja značajan izvor obnovljive energije. U radu su prikazani primeri dobre prakse korišćenja ove energije u sistemima daljinskog grejanja u zemljama Evropske unije. Analiziran je rad postrojenja za prečišćavanje otpadnih voda u Šapcu i razmotrena je mogućnost njegovog korišćenja ...
    toplotna pumpa, sistem daljinskog grejanja, postrojenje za prečišćavanje otpadnih voda
    ... daljinskog grejanja ima temperaturu vode u napojnom vodu 82°C. Temperatura povratne vode iz sistema daljinskog grejanja je oko 40°C. Minimalna temperatura otpadne vode iz postrojenja za prečišćavanje otpadne vode je 4°C, a maksimalna 18°C. Da bi se balansiralo oscilovanje u dnevnom protoku daljinskog ...
    ... potrebne toplotne energije u mreži i 33% ukupnog rashladnog opterećenja. Kanalizaciona otpadna voda temperature 10°C, koristi se za zagrevanje povratnog toka vode u SDG sa 50°C na 62°C (Slika 1). COP sistema iznosi 3,51. Slika 1. Shematski prikaz rada sistema u Helsinkiju Rad ovih postrojenja ...
    ... kanalizacionoj mreži je 6 °C. energija, ekonomija, ekologija, 2021, god. XXIII, br. 1 13 Mreža daljinskog grejanja je podeljena na 4 voda (Slika 2). Dva voda snabdevaju potrošače toplom vodom temperature 75°C (napojni vod). Temperatura vode u povratnom vodu je 50°C. Druga dva voda su sa t ...

  • Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)

    Ljiljana Vasić, Saša Milanović, Anita Puskás-Preszner, Laszlo Palcsu (2020)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary Change

  • Synergy between the mineral deposit exploration and geothermal resources assessment on the example of "Valjevo" boron and lithium deposit in Serbia

    Nebojša Atanacković, Vladimir Živanović, Ana Vranješ, Sava Magazinović, Marinko Toljić, Ana Arifović, Branislav Potić (2023)
    Exploration of mineral deposits involves a collection of vast data sets on geological characteristics of the area. These data can largely contribute to the assessment of the geothermal potential, which can lead to an increase in the share of geothermal resources in the energy mix of the extractive industry and the local community. On the example of the "Valjevo" B-Li deposit, data on structural settings and previous hydrogeological investigations were combined with the results of resource drilling and geophysical ...
    Geothermal assessment, Mineral deposit exploration, Geothermal potential, Serbia
    ... (Figure 5). 7,416,000 ,420, 422, 7,424,000 š š Š • ELB idrihole Temperature isoline (e = 2 *C) Estimated temperatures in the Triassic reservoir -| Temperature *C High : 65 "C Low :12"C s s -i ~ FI s < Figure 5. Map of estimated temperatures in the Triassic reservoir in the central ...
    ... potential of the basement of the Valjevo-Mionica Neogene basin. The study estimated the basin's depth and expected temperatures ranging from 40"C to 65"%C for the Triassic limestone reservoir. The applied approach enabled the delineation of the perspective zones for further dedicated geothermal e ...
    ... gradients in the Neogene sediments, where conductive heat flow prevails, are 0.049 – 0.069 SC/m (assuming 12 "C average air temperature). These values are considered high compared to the 0.03 "C/m adopted as the average for this part of Europe [3]. The Neogene geothermal gradient map is combined with ...

  • Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations

    Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić, Marija Ružić, Aleksa Luković (2021)
    The Vršac Mts. in NE Serbia represent the key area to investigate structural relations between the Northern Serbo-Macedonian Subunit and Supragetic Unit of the Dacia Mega-Unit. The geodynamic events during the Variscan orogeny in the Late Paleozoic colligated the two units and led to their metamorphic differentiation. The Late Cretaceous extension exhumed the medium-grade Serbo-Macedonian metamorphic rocks and structurally juxtaposed them against the low-grade metamorphosed basement of the Supragetic Unit along an E-dipping shear zone, which outcrops in the ...
    severna srpsko-makedonska subjedinica, supragetikum, kinematska analiza, multifazna ekstenzionalna deformacija
    ... SMM SG SMM-F SMM-L SG-F SG-L foliation lin ea tio n SMM SG SMM-F SMM-L C re ta ce ou s = pr es en t- da y SG-F SG-L C re ta ce ou s = pr es en t- da y C-F SMM-F SMM-L C-L Prese nt-d ay C re ta ce ou s Ol-M rotation Fig. 6. Mechanism of the structural evolution of ...
    ... redna G ora S redna G ora Zone Zone S o u t h C a r p a t h i a n s S o u t h C a r p a t h i a n s ZagajicaDepression ZagajicaDepression P an nonian Basin P an nonian Basin S e r b ia n C a r p a t h i a n s S e r b ia n C a r p a t h i a n s B a l k a n i d e s B a l ...
    ... k a n i d e s M o e s i a n M o e s i a n P m l a t r f o P m l a t r f o T F T F TFTF C F C F M o r a v a V a l l e y C o r r i d o r M o r a v a V a l l e y C o r r i d o r Jastrebac Mts.Jastrebac Mts. Vršac Mts.Vršac Mts. Western Vardar Adria-derived nitsU ...

  • Application of the Fuzzy Model in the Evaluation and Selection of Hydraulic Excavators on Open-Pit Lignite Mine

    Stevan Đenadić, Miloš Tanasijević, Vladimir Milisavljević, Dragan Ignjatović, Predrag Jovančić (2021)
    The production of lignite in large open-pit mines is mainly performed with continuously operating equipment, where bucket-wheel excavators, bucket-chain excavators, belt conveyors, and spreaders are the basic machines. Smaller machines, usually of discontinuous operating nature, are commonly categorized as auxiliary machines. This paper presents the research related to the analysis of auxiliary machine parameters with the case study for a hydraulic excavator. The purpose of the analysis was to develop a model of rating quality of service of the ...
    Fuzzy theory, hydraulic excavator, selection, quality of service, asset management

  • Age and microfacies of oceanic Upper Triassic radiolarite components from the Middle Jurassic ophiolitic mélange in the Zlatibor Mountains (Inner Dinarides, Serbia) and their provenance

    Hans-Juergen Gawlick, Nevenka Đerić, Sigrid Missoni, Nikita Bragin, Milan Sudar, Divna Jovanović (2017)
    Neo-Tethys, trench-like basins, synorogenic deposition, evolving thrust belt, Triassic palaeogeography
    ... assemblages: SCG 48a (Fig. 5): Canesium sp., Capnodoce sp. cf. C. ana- petes De Wever, C. sp. cf. C. extenta Blome, C. sp. cf. C. crys- tallina Pessagno, C.sp.cf.C.sarisa De Wever, Capnuchosphaera sp. cf. C. triassica De Wever, Corum sp. cf. C. speciosum Blome,Japonocampe sp. cf.J. mundum (Blome), ...
    ... following taxa were determined (Fig. 7): Canopfum sp. cf. C. macoyense Blome, C. crystallina Pessagno group, Capnuchosphaera theloides De Wever, C. sp. cf. C. triassica De Wever, Capnuchosphaera sp., Corum sp. cf. C. regium Blome, C. speciosum Blome, Crucella? sp., Xipha sp. cf. ŽX. pessagnoi ...
    ... (late Carnian to middle Norian): I-2 — Capnuchosphaera sp. cf. C. triassica De Wever, 3 — Capnodoce sp. cf. C. sarisa De Wever; 4 — Capnodoce sp. cf. C. anapetes De Wever; 5 — Capnodoce sp. cf. C. crystallina Pessagno; 6 — Capnodoce sp. cf. C. extenta Blome; 7 — Triassoastrum sp. cf. T. noricum (Kozur ...

  • FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina

    Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević (2021)
    ... ide herbicide could include coordination bonds between C=O and the exchangeable cation, and/or H bonds between C=O and the hydration water bcecause C=O 333 SERBIAN SOCIETY OF SOIL SCIENCE Soils for Future under Global Challenges and C-N in this compound are in a conjugation mode due to the ...
    ... are: (1) shifting of the band at 1674 cm-! (C=O vibrations) to lower wavenumbers (1639 cm'!) after the sorption of the herbicide, (2) slightly movement of phenyl ring bands from 1462 cm'"! to lower wavenumbers and (3) disappearance of 1363 cm'! band (C=C-N vibrations) after adsorption. According to ...
    ... nites causes the redshift of the C=O absorption band which indicates that the C=O group participated in the formation of a bond with the HDTMA-montmorillonite. Adsorption of an aromatic compound such as S- metolachlor on PTMA-montmorillonite takes place, beside C=O group, through the interaction ...

  • Синтеза и карактеризација керамике на бази сфена

    Jelena R. Pantić (2015-07-10)
    Механохемијска активација стехиометријске смеше реактаната TiO2, SiO2 и CaCO3 показала се као веома успешна и једноставна метода за добијање сфена (CaTiSiO5). На основу мерења релативних густина свих синтерованих узорака установљено је да максималну густину од 93,9 % имају узорци који су активирани 30 минута и синтеровани на 1200 °С. Микроструктурном анализом, тј. анализом слика синтерованих узорака активираних 30 минута, које су добијене скенирајућом електронском микроскопијом, опажа се бимодална расподела величине зрна, са просечном величином од 3 μm, односно 5 ...
    сфен, механохемија, Ритвелдова метода, оптичка спектроскопија, микроструктурна анализа, фазна трансфоpмација, чврсти раствори
    ... 80 cccc vp a a a a v p p p p p v v vr r q q aa c v r v rv  ° pp p p p pp 1300 °C 1212 °C 920 °C 872 °C 818 °C 670 °C a - TiO 2 v - CaSiO 3 r - TiO 2 q - SiO 2 p - CaTiO 3 c - CaCO 3 Слика 4.1.4.7. Дијаграм праха сфен30 након синтеровања ...
    ... аморфизације (слика 4.1.4.1.), као и до трансформације анатаса у рутил. 20 40 60  ° a cc cc c c c c c cc ccr r r a a 120 min 60 min 30 min 15 min c - CaCO 3 a, r - TiO 2 a r c Слика 4.1.4.1. Дијаграми механички активираних прахова сфен15, сфен30, сфен60 и сфен120. Симболи: ...
    ... el (% ) 1100 °C 900 °C 1000 °C 1200 °C MA (min) 1250 °C Слика 4.1.3.1. Зависност релативне густине ρrel (у %) узорака сфен15, сфен30, сфен60 и сфен120 синтерованих у току 2 сата од времена механичке активације (МА) на температурама 900, 1000, 1100, 1200 и 1250 °C. Анализом резултата ...

  • Синтеза и карактеризација керамике на бази сфена

    Jelena R. Pantić (2015-07-10)
    Механохемијска активација стехиометријске смеше реактаната TiO2, SiO2 и CaCO3 показала се као веома успешна и једноставна метода за добијање сфена (CaTiSiO5). На основу мерења релативних густина свих синтерованих узорака установљено је да максималну густину од 93,9 % имају узорци који су активирани 30 минута и синтеровани на 1200 °С. Микроструктурном анализом, тј. анализом слика синтерованих узорака активираних 30 минута, које су добијене скенирајућом електронском микроскопијом, опажа се бимодална расподела величине зрна, са просечном величином од 3 μm, односно 5 ...
    сфен, механохемија, Ритвелдова метода, оптичка спектроскопија, микроструктурна анализа, фазна трансфоpмација, чврсти раствори
    ... 80 cccc vp a a a a v p p p p p v v vr r q q aa c v r v rv  ° pp p p p pp 1300 °C 1212 °C 920 °C 872 °C 818 °C 670 °C a - TiO 2 v - CaSiO 3 r - TiO 2 q - SiO 2 p - CaTiO 3 c - CaCO 3 Слика 4.1.4.7. Дијаграм праха сфен30 након синтеровања ...
    ... аморфизације (слика 4.1.4.1.), као и до трансформације анатаса у рутил. 20 40 60  ° a cc cc c c c c c cc ccr r r a a 120 min 60 min 30 min 15 min c - CaCO 3 a, r - TiO 2 a r c Слика 4.1.4.1. Дијаграми механички активираних прахова сфен15, сфен30, сфен60 и сфен120. Симболи: ...
    ... el (% ) 1100 °C 900 °C 1000 °C 1200 °C MA (min) 1250 °C Слика 4.1.3.1. Зависност релативне густине ρrel (у %) узорака сфен15, сфен30, сфен60 и сфен120 синтерованих у току 2 сата од времена механичке активације (МА) на температурама 900, 1000, 1100, 1200 и 1250 °C. Анализом резултата ...

  • Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential

    Nataša Čuković-Ignjatović, Ana Vranješ, Dušan Ignjatović, Dejan Milenić, Olivera Krunić (2021)
    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 објекти
    ... • temperature reduction, ∆T = 19 ◦C, which is adopted to meet temperature conditions for bathing (35 ◦C). The calculation of disposable thermal energy from the geothermal borehole VS-2/H was performed according to the Equation (1). E = 4.2 kJ/kg/◦C × 12 l/s × 19◦C which brought around 950 kW of thermal ...
    ... climate data for Ljuba and Banatsko Veliko Selo. Average Temperature 1 Design Temperature 2 Heating Days HDD Ljuba 5.4 ◦C −15 ◦C 184 2686 Banatsko Veliko Selo 4.9 ◦C −15.3 ◦C 183 2763 1 Average temperature during the hating season. 2 Design temperature for sizing the heating system, HDD— Heating ...
    ... May June July August September October November December Avg. Temperature (◦C) 0.8 2.5 7.4 13.2 18 21.9 23.9 23.9 18.6 13.2 7.9 2.2 Min. Temperature (◦C) −2.3 −1.4 2.5 7.9 12.6 16.5 18.5 18.5 14 9 4.6 −0.6 Max. Temperature (◦C) 4.3 6.7 12.4 18.2 23 26.7 28.7 28.9 23.4 17.9 11.8 5.4 Precipitation/Rainfall ...