Претрага
1102 items
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Fluid inclusion systematics in the Okoška gora polymetallic deposit
... which they attributed to blastic recrystal during the Cretaceous metamorphic event. This paper presents the first fluid inclusi 1 microthermometric data in an attemptto decipherthe genetic conditions ofthe Око deposit. This work is part of a larger multidisciplinary project aimed at десрће formation ...
... у слободном приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr ...Aleš Šoster, Miloš Velojić, Barbara Potočnik Krajnc, Matej Dolenec. "Fluid inclusion systematics in the Okoška gora polymetallic deposit" in 25th meeting of Slovenian geologists, Ljubljana, 2021, Univerza v Ljubljani, Oddelek za geologijo (2021)
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Zbirka rešenih zadataka iz termodinamike
Marija Živković, Aleksandar Madžarević (2023)... ve- ličine stanja. Da bi se odredilo potrebno vreme za rad grejača neophodno je odrediti koliko toplote treba dovesti vodenoj pari da bi iz stanja 1 prešla u stanje 2. 170 ZBIRKA REŠENIH ZADATAKA IZ TERMODINAMIKE Pošto je proces izohorski iz Prvog zakona termodinamike sledi da je: Za vlažnu paru ...
... = 195 °C) je: Sledi da je: Količina toplote koju je potrebno dovesti vodenoj pari je: 171VODENA PARA ZADATAK 74 Količina toplote se vodenoj pari dovodi pomoću električnog grejača snage 580 W, što znači da se u svakoj sekundi vodenoj pari dovede 580 J toplote. Sledi da je potrebno vreme rada ...
... treba razdvojiti na dva procesa: do trenutka do koga je klip nepomičan (izohorski proces) i od trenutka kada klip počinje da se podiže (izobarski proces). Klip će početi da se podiže kada se dostigne pritisak od 1500kPa. Znači, u delu procesa kada je pritisak između 800 kPa i 1500 kPa proces je ...Marija Živković, Aleksandar Madžarević. Zbirka rešenih zadataka iz termodinamike, Beograd : Univerzitet u Beogradu, Rudarsko-geološki fakultet, 2023
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E-Connecting Balkan Languages
In this paper we present a versatile language processing tool that can be successfully used for many Balkan languages. This tool relies for its work on several sophisticated textual and lexical resources that were developed for most of Balkan languages. These resources are based on several de facto standards in natural language processing.... Тихия океан железопътната линия прекосява район, все още населяван от индианци и диви зверове. Това е обширна територия, която мормоните са започнали да колонизират около 1845 г., след като са били прогонени от щата Илинойс.Ανάμεσα στην ...
... Processing of Relations between Geographical Proper Names in Foreign Affairs, Fourth International Workshop on Applications of Natural Language to Data Bases (NLDB'00), Versailles, 28-30 juin (Actes p. 66-78), 2000. [17] R. Stanković. Improvement of Queries using a Rule Based Procedure for Inflection ...
... у слободном приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr ...Cvetana Krstev, Ranka Stanković, Duško Vitas, Svetla Koeva. "E-Connecting Balkan Languages" in Proceedings of the Workshop Workshop on Multilingual resources, technologies and evaluation for Central and Eastern European Languages, 17 September 2009, eds. C. Vertan, S. Piperidis, E. Paskaleva and Milena Slavcheva, Borovets, Bulgaria : Association for Computational Linguistics Stroudsburg, PA, USA (2009)
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A Lexical Approach to Acronyms and their Definitions
In this paper we present a comprehensive approach to acronyms for Natural-Language Processing (NLP) of Serbian texts. The proposed procedure includes extraction of acronyms and their definitions that are usual Multi-Word Units (MWUs), shallow parsing of MWUs that enables MWU lemmatization and production of entries in morphological electronic dictionaries, both for MWU and acronyms, that are provided with grammatical, syntactic, semantic and domain information. This approach enables representation that reflects complex relations between acronyms and their definitions.... у слободном приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr ...
... ical text. In Pacific Symposium on Biocomputing, vol- ume 8. World Scientific. Spasic, I., S. Ananiadou, J. McNaught, and A. Kumar, 2005. Text mining and ontologies in biomedicine: mak- ing sense of raw text. Briefings in bioinformatics, 6(3):239–251. Taylor, Paul, 2009. Text-to-speech synthesis ...Cvetana Krstev, Duško Vitas, Ranka Stanković. "A Lexical Approach to Acronyms and their Definitions" in Proceedings of the 7th Language & Technology Conference, November 27-29, 2015, Poznań, Poland, Springer (2015)
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Medical Domain Document Classification via Extraction of Taxonomy Concepts from MeSH Ontology
Mihailo Škorić, Mauro Dragoni (2019)This paper is a result of a task that was presented to attendants of Keyword Search in Big Linked Data summer school, that was organized by Vienna University of Technology, under the Keystone COST action in the summer of 2017. It presents a specific approach to the classification via creation of minimal document surrogates based on the US National medical library’s MeSH ontology, which is derived from the Medical Subject Headings thesaurus. In a series of previously classified medically ...... in mining”. Knowledge Management Research & Practice Vol. 14, no. 4 (2016): 445–456 Stanković, Ranka, Cvetana Krstev, Ivan Obradović and Olivera Kitanović. “Indexing of Textual Databases Based on Lexical Resources: A Case Study for Serbian”. In Semantic Keyword-based Search on Structured Data Sources ...
... Dragoni M., “Medical document classification...”, pp. 55–69 school: Keyword Search in Big Linked Data,1 organized in Vienna from 21– 25 August, 2017 under the COST action IC1302 Keyword search in Big Linked Data. The task was to classify 10.000 given documents originating from the digital collection of the ...
... 82:025.43MESH DOI 10.18485/infotheca.2019.19.1.3 ABSTRACT: This paper is a result of a task presented to attendants of Keyword Search in Big Linked Data summer school, that was organized by Vienna University of Technology, under the Keystone COST action in the summer of 2017. It presents a specific approach ...Mihailo Škorić, Mauro Dragoni. "Medical Domain Document Classification via Extraction of Taxonomy Concepts from MeSH Ontology" in Infotheca, Faculty of Philology, University of Belgrade (2019). https://doi.org/10.18485/infotheca.2019.19.1.3
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The Newton method for solving nonlinear equations based on aggregation operators
Nebojša M. Ralević, Dejan Ćebić (2019)Nebojša M. Ralević, Dejan Ćebić. "The Newton method for solving nonlinear equations based on aggregation operators" in XLVI International Symposium on Operational Research SYM-OP-IS, Kladovo, 15-18.9.2019, Универзитет у Београду (2019)
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Linear-motor plunger pump increases lifting efficiency
Bojan Martinović, Dušan Đekić, Dušan Danilović, Pavel Isaev. "Linear-motor plunger pump increases lifting efficiency" in Oil & Gas Journal (2022)
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Репозиторијум дигиталних идентификатора објеката – доиФил: изградња, стање и перспективе
Милош Утвић, Михаило Шкорић (2017)Филолошки факултет Универзитета у Београду је крајем јула 2015. године склопио уговор са агенцијом Crossref и тиме стекао право да својим публикацијама додељује дигитални идентификатор објекта (DOI), као и публикацијама других издавача које заступа. Истовремено, у склопу уговора, Филолошки факултет је развио репозиторијум доиФил који за све регистроване публикације чува њихове библиографске метаподатке, хипервезу ка комплетном тексту и сам DOI. После припремних радњи и разраде процеса на којима је заснован рад репозиторијума, у новембру 2016. године је репозиторијум доиФил ...... поједини програми за унос метаподатака који се чувају у формату BibTeX дозвољавају кориснику да сам дефинише додатна поља. Разлог за то је врло једноставан запис поља за метаподатке: име_поља = вредност_поља. У датом примеру (Слика 2) је употребљено поље doiUrl које не постоји у спецификацији како би се ...
... DOI-тима је донео одлуку да за улазни и интерни формат метаподатака изабере формат електронских библиографија који је истовремено: (У1) довољно изражајан и проширив, тј. може да се искористи за опис свих неопходних метаподака и да се по потреби прошири тако да може да опише и оне метаподатке који ...
... тако што дефинише њен суфикс, на пример analiff.2017.29.1.4, тако да комплетан DOI гласи 10.18485/analiff.2017.29.1.4. Међутим, да би документу могло да се приступи на основу његовог дигиталног идентификатора објекта, потребно је да издавач додељени DOI региструје код агенције IDF-а са којом има склопљен ...Милош Утвић, Михаило Шкорић. "Репозиторијум дигиталних идентификатора објеката – доиФил: изградња, стање и перспективе" in Научна конференција Библиоинфо — 55 година од покретања наставе библиотекарства на високошколском нивоу, Београд 18. мај 2017., Филолошки факултет Универзитета у Београду (2017). https://doi.org/10.18485/biblioinfo.2017.ch7
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Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal
Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)... Kostić, A.; Životić, D.; Ercegovac, M. Mineral resources of Serbia. Geol. Carpath. 2008, 59, 345–361. 5. Reichl, C.; Schatz, M.; Zsak, G. World-Mining-Data. In Minerals Production; Federal Ministry of Science, Research and Economy: Vienna, Austria, 2016; Volume 31, pp. 129–130. 6. Serbia, the Country ...
... HDPE; Lignite/HDPE—mixture of initial lignite and initial HDPE (mass ratio, 1:1) (experimental data); Lignite/HDPE (T)—mixture of initial lignite and initial HDPE (mass ratio, 1:1) (theoretical/calculated data); S1—free hydrocarbons (mg HC/g sample); S2—pyrolysate hydrocarbons (mg HC/g sample); HC—hyd ...
... collection, analyses, or interpretation of data; in the writing of the manuscript; or in the decision to publish the results. References 1. Strategy Energy Development of the Republic of Serbia until 2015. Available online: http://www.smeits.rs/include/data/docs0 066.doc (accessed on 2 February 2020) ...Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović. "Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal" in Polymers, MDPI AG (2021). https://doi.org/10.3390/polym13050759
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Multihazard Exposure Assessment on the Valjevo City Road Network
Miloš Marjanović, Biljana Abolmasov, Svetozar Milenković, Uroš Đurić, Jelka Krušić, Mileva Samardžić Petrović (2019)Miloš Marjanović, Biljana Abolmasov, Svetozar Milenković, Uroš Đurić, Jelka Krušić, Mileva Samardžić Petrović. "Multihazard Exposure Assessment on the Valjevo City Road Network" in Spatial Modeling in GIS and R for Earth and Environmental Sciences, Elsevier Inc (2019). https://doi.org/10.1016/B978-0-12-815226-3.00031-4.
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Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach
Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2021)Poor water solubility of new chemical entities is considered as one of the main obstacles in drug development, as it usually leads to low bioavailability after administration. To overcome these problems, the selection of the appropriate formulation technology needs to be based on the physicochemical properties of the drug and introduced in the early stages of drug research. One example of the new potential drug substance with poor solubility is DK-I-60-3, deuterated pyrazoloquinolinone, designed for the treatment of various neuropsychiatric ...... range in which the results were collected was from 3◦ to 40◦, with the step of 0.01◦ (data collection speed was 3 ◦/min). To minimize the low background, a single crystal silicon sample holder was used. The XRPD data were treated by the PDXL2 integrated X-ray powder diffraction software (v. 2.8.30; Rigaku ...
... the majority are investigated for oral administration. Many drugs containing nanocrystals intended for oral administration reached the market to this date, with an increasing number in preclinical and clinical trials [6,9]. Because of small particle size, solubility, dissolution, and adhe- siveness to ...
... further investigation in in vivo preclinical studies. So far, the examination of DK-I-60-3 was focused on toxicology and pharmacology studies, with no data on its physicochemical properties. Therefore, we aimed through this research to select a formulation strategy based on physicochemical properties of ...Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić. "Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach" in Pharmaceutics, MDPI, Basel, Switzerland (2021). https://doi.org/10.3390/pharmaceutics13081188
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Geostatički proračuni sanacije klizišta šipovima
U ovom radu su, polazeći od rezultata geotehničkih istraživanja, prikazani geostatički proračuni sanacije klizišta vertikalnim šipovima. Metodologija proračuna je složena, jer podrazumeva interakciju klizišta i stabilizirajućih šipova. Stoga se simultano analiziraju stabilnost klizišta i stabilnost šipova. Prilikom određivanja bočne otpornosti tla oko šipova koristi se metoda Brinč Hansena koja uzima u obzir trodimenzionalne uslove u tlu i može da se primeni u složenim geološkim uslovima koji su česti u Srbiji. Analize stabilnosti klizišta vrše se odgovarajućim metodama granične ravnoteže. ...sanacija klizišta, interakcija klizišta i šipa, bočna otpornost šipova, stabilnost klizišta i šipova... povratnom analizom može da se odredi prosečna čvrstoća smicanja duž klizne površine tla uay (Slika 4), а u slučaju reaktiviranja starih klizišta, na ovaj način se određuje rezidualna čvrstoća (Chandler, 1977). Slika 4. Površina klizanja Figure 4. Sliding surface 297 mogu da se provere vrednosti ...
... pF - F = H (2) 1 1 2 2F e = F e (3) o 0 površine Lb Navfac, 1982; Poulos et al., 1980 u silu Hp šipu, a zatim da se izvrši dimenzionisanje šipa. U vezi sa tim sile koju šip može da prihvati. POTREBNU STABILNOST KLIZIŠTA s (Slika 7) odredju (4) Slika 7. Klizište sanirano šipovima Figure 7. Landslide ...
... KLIZIŠTA Kada proveravamo stabilnost klizišta saniranog šipovima (Slika 7), polazimo od uslova da se superponiraju otpori tla duž klizne površine i otpori koji su posledica interakcije šipa i okolnog tla. Tako da se faktor sigurnosti Fs s s s s R +HF = D (5) gde je: Rs – otporne sile u klizištu Hs ...Slobodan Ćorić, Dragoslav Rakić, Dušan Berisavljević. "Geostatički proračuni sanacije klizišta šipovima" in Zbornik radova osmog naučno-stručnog međunarodnog savetovanja - Geotehnički aspekti građevinarstva, Savez građevinskih inženjera Srbije, (2019)
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William „Strata” Smith, otac engleske geologije– 250 godina od rođenja
Dejan Radivojević (2019)... godini života ostao je bez oca nakon čega ga majka šalje da živi na ujakovoj farmi. Tamo je pohađao seosku školu do 1780. godine, ali obzirom da je bio siromašan i da su njegove mogućnosti za sticanje formalnog obrazovanja bile ograničene morao je da napusti školovanje. Ipak, vreme nakon toga koristio ...
... rao lokalne zemljoposednike, pa je od njega zatraženo da ispita trase planiranog dvokrakog Somerset kanala koji je trebao da ugalj sa kopna prebaci do mora i da ga preko drugih kanala prenese do Londona. Dok je radio na kanalu ustanovio je da je stratigrafija identična na svakom iskopu iako se oni ...
... geološkom zapisu, obzirom da je znao da primena isključivo litološkog pristupa može dovesti do pogrešne korelacije stena različite starosti sa sličnom litologijom. Napravio je ogromnu zbirku fosila koju je mogao da poveže sa određenim slojem, na osnovu čega se može reći da je začetnik nauke – bios ...Dejan Radivojević. "William „Strata” Smith, otac engleske geologije– 250 godina od rođenja" in Zbornik radova Srpskog geološkog društva, Srpsko geološko društvo (2019)
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Zaštita od miniranja
Suzana Lutovac, Miloš Gligorić (2024)Suzana Lutovac, Miloš Gligorić. Zaštita od miniranja, Beograd : Univerzitet u Beogradu - Rudarsko-geološki fakultet, 2024
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Softverski alati za korišćenje resursa za srpski jezik
Ivan Obradović, Ranka Stanković (2008)... literals in another language. Different options for data consistency check are incorporated in this module, such as those for detecting broken semantic relations, since the ref- erential integrity of data is not defined in the net- work itself, as a data model. Namely, it is possible to delete any synset ...
... Human Language Technology Group, which SOFTWARE TOOLS FOR SERBIAN LEXICAL RESOURCES Ivan Obradović, Ranka Stanković, Faculty of Mining and Geology Faculty of Mining and Geology University of Belgrade University of Belgrade 44a Resources), enables synchronized use of vari- ous resources and is ...
... of simple word forms called DELAF (Dictionnaire électronique des formes fléchies – electronic dictionary of word forms), where the main format of data is the fol- lowing: oblik,lema[:kategorije]* where oblik stands for one of the morphological forms of the simple word whose canonical form lema ...Ivan Obradović, Ranka Stanković. "Softverski alati za korišćenje resursa za srpski jezik" in INFOteka: časopis za informatiku i bibliotekarstvo, Belgrade, Serbia : Zajednica biblioteka univerziteta u Srbiji (2008)
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Asbestos-Based Pottery from Corsica: The First Fiber-Reinforced Ceramic Matrix Composite
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 ...... slit #1, 20 mm; and receiving slit #2, 20 mm. All specimens were rotated during data collection with a speed of 60 rpm. PDXL 2 software (version 2.8.3.0), Rigaku Corp., Tokyo, Japan) was used for the powder diffraction data analysis [12]. The analyzed surface area (20 x 20 mm?) and the fine powdering ...
... by Rigaku (Rigaku Corp., Tokyo, Japan). CuK,„ radiation was used. The diffractometer was equipped with a KB filter and a D/teX Ultra 250 detector. Data were collected between 5 and 70” 20 at every 0.01* in the Bragg; Brentano geometry. The scan speed was 59/min and the slit configuration was as ...
... у слободном приступу. - Претрага репозиторијума доступна је на www.dr.rgf.bg.ac.rs The Digital repository of The University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr ...Philippe Colomban, Aleksandar Kremenović. "Asbestos-Based Pottery from Corsica: The First Fiber-Reinforced Ceramic Matrix Composite" in Materials, MDPI AG (2020). https://doi.org/10.3390/ma13163597
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Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)
Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry, Global and Planetary ChangeLjiljana Vasić, Saša Milanović, Anita Puskás-Preszner, Laszlo Palcsu. "Determination of the groundwater-leakage mechanism (binary mixing) in a karstic dam site using thermometry and isotope approach (HPP Visegrad, Bosnia, and Herzegovina)" in Environmental Earth Sciences, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s12665-020-08910-x
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Hibridni sistem za planiranje i analizu ventilacije rudnika
... 0)hhQQR(b)Q(F jj o vprj n 1j jjkjk =−−= ∑ = , za k = 1, 2, ... m . (5.35) Da bi funkcija F(Qk) bila jednaka nuli, odnosno, da bi jednačina (5.22) bila zadovoljena, potrebno je da se izvrši korekcija za vrednost ∆Qk za dati poligon, odnosno: kkk QQQ ∆+→ , (5.36) 156 O knjizi1 Metodologija planiranja ...
... različitih matematičkih problema vezanih za dati model, ili, kraće, rešavanje matematičkog modela sistema. Najveći deo matematičke teorije posvećen je analitičkim metodama za rešavanje matematičkih problema. Međutim, da bi neka analitička metoda mogla da se primeni za rešavanje konkretnog matematičkog ...
... posledice mešanja strujnica. Kada bi se za B usvojila konstantna vrednost pokazalo bi se da je nekoliko desetina hiljada puta veća od η. Međutim, merenjima je utvrđeno da se B ne može smatrati konstantom za dati fluid ili turbulenciju, jer se menja duž preseka. Na primer, za cevi, B je jednako nuli ...Nikola Lilić, Ranka Stanković, Ivan Obradović. Hibridni sistem za planiranje i analizu ventilacije rudnika, Rudarsko-geološki fakultet, Univerzitet u Beogradu, 2000
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Projekcija razvoja osmatračke mreže podzemnih voda u Republici Srbiji
Petar Dokmanović, Zoran Stevanović, Saša Milanović, Bojan Hajdin, Vesna Ristić-Vakanjac, Veljko Marinović (2016)... u sklopu ukupne projektovane dinamike, procenjeno da izrada novog pijezometra može da se prolongira nakon 2020. godine. Podrazumeva se da se, u početnim fazama, na novim projektovanim punktovima, monitoring nivoa sprovodi kao nadzorni, a da se, vremenom, u zavisnosti od trenda nivoa PV, prema ...
... za koji je procenjeno da je perspektivan za kaptiranje. Podrazumeva se da se, u početnim fazama, na svim projektovanim punktovima (osim punktova aktuelne mreže AŽS), kvalitativni monitoring sprovodi kao nadzorni (s obzirom da se radi o novim punktovima), a da se, vremenom, u zavisnosti ...
... neposrednih korisnika PV treba da proizvede i mnogo bolju pokrivenost teritorije RS i racionalizaciju «državne» monitoring mreže. U ovakvom konceptu, određenu ulogu mogu da imaju i regionalni ZJZ, sa svojom dosadašnjom rutinom rada. Može se konstatovati i to da monitoring nivoa na postojećim ...Petar Dokmanović, Zoran Stevanović, Saša Milanović, Bojan Hajdin, Vesna Ristić-Vakanjac, Veljko Marinović. "Projekcija razvoja osmatračke mreže podzemnih voda u Republici Srbiji" in Vodoprivreda 48 no. 279-281, Beograd : Srpsko društvo za odvodnjavanje i navodnjavanje (2016)
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Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)
Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović (2014)Sphene (CaTiSiO5), a calcium titanosilicate ceramic has been prepared from a powder mixture of CaCO3, TiO2 and SiO2 using vibro-milling for homogenization and activation of precursors. During the highpressure and high-temperature synthesis (HPS) process at 4 GPa and 1,200 °C, sphene undergoes into phase transition, from room-temperature phase P21/a to high-temperature phase A2/a. Evidence of that structural phase transition is given in this paper using infrared, Raman spectroscopy and X-ray powder diffraction. Rietveld refinement was employed to get the ...Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović. "Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)" in Physics and Chemistry of Minerals, Springer Science and Business Media LLC (2014). https://doi.org/10.1007/s00269-014-0693-x