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4742 items
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Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?
Стефан Петровић, Наталија Батоћанин (2020)У раду су приказани резултати испитивања серпентинисаних харцбургита Брђана (43°58'45.1" СГШ, 20°25'12.6" ИГД) и талкизираних харцбургита откривених у интервалу 429-559.8 m у истражној бушотини 330А/18 (44°07'33.2" СГШ, 20°30'28.5" ИГД) на Руднику. Узорци оба локалитета показују карактеристике резидуалних харцбургита из омотача, односно тектонита; лепидобластичне, бластозрнасте, или порфирокластичне структуре и масивне текстуре. Серпентинисани харцбургити и серпентинити Брђана су изграђени од серпентина, ретких реликата оливина и ортопироксена, акцесорног спинела, и веома ретког секундарног магнезита и магнетита. Најдоминантнији састојак (местимично гради и преко ...... or less serpentinized in the Maljen massif and almost completely transformed into serpentinites in the Mts. Suvobor. Mineral composition and the source of samples from Brdjani and Rudnik were determined, along with their comparison. The required conditions and factors for intensive talcization or ...
... sample in horizontal position) parafocusing Bragg-Brentano geometry using D/teX Ultra 250 strip detector in 1D standard mode with CuKα1,2 radiation source (U = 40 kV and I = 30 mA). The low background silicon sample holder was used. The XRPD pattern was collected in 5-75 ° 2θ, with step of 0.01 °, and ...Стефан Петровић, Наталија Батоћанин. "Aлтерације перидотита контролисане карактером флуида на примеру харцбургита Рудника - Серпентинизација или талкизација?" in Записници српског геолошког друштва, Српско геолошко друштво, Београд (2020)
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Hidrogeologija ležišta bakra i zlata Čukaru Peki – od istraživanja do eksploatacije
Podzemne vode, Mineralne sirovine, Rudnička hidrogeologija, Odvodnjavanje rudnika, Timočki magmatski kompleksNebojša Atanacković, Vladimir Živanović, Veselin Dragišić, Jelena Davidović. "Hidrogeologija ležišta bakra i zlata Čukaru Peki – od istraživanja do eksploatacije" in 18. Kongres geologa Srbije "Geologija rešava probleme", Divčibare, 01-04 jun 2022., Srpsko geološko društvo (2022)
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Потреба за израдом биланса и оценом расположивих резерви подземних вода Републике Србије
Природне карактеристике Србије, просторна дистрибуција ресурса водe и њихових корисника, као и међусобна интеракција коришћења, заштите вода, као и заштите од вода, условиле су да се подземне воде на читавој територији морају посматрати интегрално, јединствено, комплексно и рационално. Међутим, тренутно је у Републици Србији могуће дефинисати само одлике појединих издани и/или изворишта услед непостојања довољних података за свеобухватну анализу стања ресурса. За оцену притиска на квантитет ресурса подземних вода, што је обавеза према Оквирној директиви о водама ЕУ (ОДВ) ...Зоран Стевановић, Вељко Мариновић, Бранислав Петровић. "Потреба за израдом биланса и оценом расположивих резерви подземних вода Републике Србије" in Записници Српског геолошког друштва, Српско геолошко друштво (2021)
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Alpine thermal events in the central Serbo-Macedonian Massif (southeastern Serbia)
Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Andreas Wetzel, Irena Peytcheva, Albrecht von Quadt (2015)Milorad D. Antić, Alexandre Kounov, Branislav Trivić, Andreas Wetzel, Irena Peytcheva, Albrecht von Quadt. "Alpine thermal events in the central Serbo-Macedonian Massif (southeastern Serbia)" in International Journal of Earth Sciences, Springer Science and Business Media LLC (2015). https://doi.org/10.1007/s00531-015-1266-z
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Surface functional groups and degree of carbonization of selected chars from different processes and feedstock
Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann (2022)The knowledge ofthe structural and chemical properties of biochars is decisive for their application as technical products. For this reason, methods for the characterization of biochars that are generally applicable and allow quality control are highly desired. Several methods that have shown potential in other studies were used to investigate two activated carbons and seven biochars from different processes and feedstock. The chars were chosen to cover a wide range of chemical composition and structural properties as a hardness ...Biougalj, različiti procesi dobijanja, različite sirovine, površinski aktivne grupe, x-ray, FT-IR,XPS... conducted on a Rigaku Smartlab X-ray Diffractometer in 0-0 geometry (the sample in horizontal position) in parafo- cusing Bragg-Brentano geometry using D/teX Ultra 250 strip detector in 1D standard mode with CuK, u ( = 1.54178 A) radiation source (U = 40 kV and I = 30 mA) and Ni-filtering. The XRD ...
... 101 „ 3) 3649 J 4000 3900 3890 3700 3600 3500 v/cm"1 0 — —— —— ————-{ii, ——— 4000 3500 3000 2500 2000 1500 1000 500 v/ cm" b) 100 4 0) 2)3)4) —— HW1100g untreated 90 —— HW1100g treated with HCI 80 70 1510 60 0000 3900 33@0/;3·3 3600 3500 1418 ·«874|873 ž 1) 3748 \P 50 i orog artefacts ...
... last decade as a source for bioenergy [8], for the production of a valuable carbonaceous material (biochar) and as a means for carbon sequestration [9,10]. Meanwhile thousands of articles are available on the production, use and modification of biochars as a sustainable carbon source. Two main types ...Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann. "Surface functional groups and degree of carbonization of selected chars from different processes and feedstock" in PLOS ONE (2022). https://doi.org/10.1371/journal.pone.0277365
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Hidrohemijske karakteristike termomineralnih voda Mataruške Banje
Snežana Kretić, Jana Štrbački (2022)Mataruška Banja je naseljeno mesto u Centralnoj Srbiji, koje teritorijalno pripada opštini Kraljevo. Banja je poznata po prirodnim lekovitim vodama visokih temperatura. Formiranje termomineralnih voda vezuje se za rasprostranjenje magmatskih stena. Cilj rada je definisanje hidrohemijskog sastava ovih voda i razmatran je kroz rezultate osam kompletnih hemijskih analiza i jedne skraćene hemijske analize, uzete sa bunara MB-2/81. Hidrogeološka istraživanja, uzorkovanje i izrada kompletnih hemijskih analiza izvršeni su u periodu od 1981. do 2004. godine, dok je uzorkovanje i izrada ...Mataruška Banja, termomineralne vode, kvalitet podzemnih voda, vodonik-sulfid, metasilicijumska kiselinaSnežana Kretić, Jana Štrbački . "Hidrohemijske karakteristike termomineralnih voda Mataruške Banje" in XVI Srpski simpozijum o hidrogeologiji sa međunarodnim učešćem, 28.09−02.10.2022, Zlatibor, Srbija, Rudarsko-geološki fakultet (2022)
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Serbian NER&Beyond: The Archaic and the Modern Intertwinned
U ovom radu predstavljamo srpski književni korpus koji se razvija pod okriljem COST Akcije „Distant Reading for European Literary History” CA16204. Koristeći ovaj korpus romana napisanih pre više od jednog veka, razvili smo i učinili javno dostupnim Sistem za prepoznavanje imenovanih entiteta (NER) obučen da prepozna 7 različitih tipova imenovanih entiteta, sa konvolucionom neuronskom mrežom (CNN), koja ima F1 rezultat od ≈91% na test skupu podataka. Ovaj model je dalje ocenjen na posebnom skupu podataka za evaluaciju. Završavamo poređenje ...... presents PERS). It should be noted that the EVENT type did not occur in this dataset. ID P R L D O W ∑ tok 19070 44 55 23 23 3 0 2,027 19180 18 13 2 5 0 5 3,928 19121 33 18 14 2 0 0 3,045 Table 4: SrpELTeC-eval NE distribution. We applied the same evaluation procedure for the both recognizers. After running ...
... 1,612 1,509 328 229 52 60 18 34,324 18880 1,372 986 271 201 32 59 10 26,642 18881 935 619 95 105 12 14 1 13,898 18890 804 714 36 56 1 0 0 29,337 18932 1,521 259 46 35 0 5 2 16,821 18950 764 581 51 103 12 6 33 14,454 19021 1,647 2,285 123 58 82 4 15 40,804 19040 1,655 917 221 281 1 3 7 32,367 19140 770 ...
... collections of literary texts (Stanković et al., 2019; Frontini et al., 2020). The main goal of this ongoing action is to compile a multilingual open-source collection, named European Literary Text Col- lection (ELTeC), containing linguistically anno- tated sub-collections of 100 novels per language written ...Branislava Šandrih Todorović, Cvetana Krstev, Ranka Stanković, Milica Ikonić Nešić. "Serbian NER&Beyond: The Archaic and the Modern Intertwinned" in Proceedings of the Conference Recent Advances in Natural Language Processing - Deep Learning for Natural Language Processing Methods and Applications, INCOMA Ltd. Shoumen, BULGARIA (2021). https://doi.org/10.26615/978-954-452-072-4_141
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Keyword Extraction from Parallel Abstracts of Scientific Publications
... extraction methods in the text preprocessing step usually use some heuristics to gain in performance by using semantic or syntactic knowledge. As the source of syntactic knowledge, methods usually use part-of-speech tags (POS) in order to restrict access to certain types of words (e.g. nouns, verbs or ...
... approximation of a geological ontology construction. In addition, we will explore, if we can gain by translating the set of annotated keywords from the source to the target language and obtain larger sets of annotated keywords. Acknowledgments. The authors would like to acknowledge networking support by ...Slobodan Beliga, Olivera Kitanović, Ranka Stanković, Sanda Martinčić-Ipšić . "Keyword Extraction from Parallel Abstracts of Scientific Publications" in Sematic Keyword-Based Search on Structured Data Sources - Third International KEYSTONE Conference, IKC 2017 Gdańsk, Poland, September 11–12, 2017 Revised Selected Papers and COST Action IC1302 Reports, Springer (2017)
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Минерагенија зеолитских туфова Србије
Vladan Kašić (2018-02-05)Лежишта наших зеолитских туфова (Златокоп, Игрош, Јабланица 1, Беочин, Топоница и Сланци) која су овде била предмет детаљних истраживања, просторно и генетски везана су за вулканске и вулканокластичне стене маринских средина сенонске и неогенске старости и језерске седименте неогене старости и настала су као продукт девитрификације вулканског стакла.Током лабораторијских испитивања при изради ове докторске дисертације, примењене су следеће аналитичке методе: оптичка испитивања петрографских препарата; рендгенска дифракција праха (XRD); скенирајућа електронска микроскопија (СЕМ метода); хемијска карактеризација зеолитских туфова у оквиру ...... I(cts) 0 2 0 8.976 8.914 2 0 0 7.857 7.834 -1 1 1 6.755 6.718 2 0 1 6.614 6.550 0 0 1 5.220 5.226 -3 1 1 7.857 7.834 1 1 1 5.091 5.089 -1 3 1 4.649 4.648 1 3 1 3.971 3.965 3 3 0 3.941 3.942 2 4 0 3.897 3.901 -2 2 2 3.415 3.414 -4 0 2 3.377 ...
... помоћу LSUCRIPC) h k l dizr (Å) dizm (Å) 2izr. ( o ) 2izm ( o ) I(cts) 0 2 0 8,929 8,927 9,897 9,901 256 2 0 0 9,114 9,144 11,171 11,226 137 -1 1 1 6,851 6,877 12,911 12,921 12 2 0 1 6,795 6,802 13,010 13,060 17 0 0 1 6,641 6,641 13,320 13,318 23 -3 1 1 5,252 5,250 16,867 16,877 94 1 1 ...
... 3 1 4,643 4,643 19,100 19,100 85 0 4 0 4,464 4,476 19,870 19,820 32 1 3 1 3,972 3,979 22,362 22,340 183 4 0 0 3,957 3,964 22,450 22,430 141 3 3 0 3,948 3,951 22,499 22,510 142 2 4 0 3,888 3,891 22,851 22,835 272 -2 4 1 3,731 3,728 23,827 23,845 98 4 2 0 3,617 3,626 24,587 24,525 81 -3 ...Vladan Kašić. "Минерагенија зеолитских туфова Србије" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2018-02-05)
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Pregled hidrodinamičkih istraživanja bunara sa horizontalnim drenovima numeričkim metodama
U radu je predstavljen pregled odabranih hidrodinamičkih istraživanja realizovanih primenom numeričkih metoda simulacije kretanja podzemnih voda pod uticajem rada bunara sa horizontalnim drenovima. Na osnovu pristupa u matematičkom i hidrauličkom tretiranju, kao i numeričkoj simulaciji bunara sa horizontalnim drenovima na modelima, predstavljeni su najznačajniji aspekti izrade hidrodinamičkih modela ovog kompleksnog tipa vodozahvatnog objekta. Metodologija obuhvata izbor: a) graničnih uslova za simulaciju prirodnih granica, izvora prihranjivanja i dreniranja izdani; b) primenjivanog stepena diskretizacije prostora obuhvaćenog modelom u planu i profilu; ...horizontalni bunari, hidraulika bunara, analitički modeli, numerički modeli, hidrodinamičko modeliranje podzemnih vodaĐorđije Božović, Dušan Polomčić, Dragoljub Bajić. "Pregled hidrodinamičkih istraživanja bunara sa horizontalnim drenovima numeričkim metodama" in Vodoprivreda, Srpsko društvo za odvodnjavanje i navodnjavanje (2020)
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Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs
John Nyame (2024)The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...... Geology Contents ONRN:2. OOA VARAANAARAAAAAAAARAANAANAANAAAANATANAANAANATAAAARAARARRRARRATARARRRARARARARARAAARARARAAAARARARARARAKIKII 4 PR MM :{0)D) 0[0 C0 , RRGAGRAAAARAAAAAAARA RAAAA RAAAA RARAAAAAAA RAAAAA AAAAAA AAARARARANAA AAAAA RAAAAAA AAARARARAA RAAAAAA AAAAAA RAAAAA NAAAA 5 PALOZ:O 100070 ...
... trappings over time that seal CO» in their stored form in the geological formation. sohublity trappirg tr ap pi ng co nt ri bu ti on (0 to 10 0% ) 1 10 100 1000 10,000 · 0.1 1 10 100 1000 time since injection stops (years) Figure 4.2 Trapping mechanisms with time [52] Research indicates ...
... Figure 2.6 Chemical looping schematic. 3. CARBON UTILIZATION ANALYSIS Carbon utilization can be an important option for providing an alternate source of renewable energy to produce various products. The method must be ecofriendly, economically viable and safe [12]. Carbon utilization plays a ...John Nyame. Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs, 2024
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Transboundary groundwater resource management: needs for monitoring the Cijevna River Basin (Montenegro–Albania)
The transboundary Cijevna River Basin shared between Albania and Montenegro has a surface area of 650 km2. It is extremely important for water management, especially in the country of Montenegro which is downstream. Due to the high permeability of both the karst and intergranular aquifers that exist in the basin, the River Cijevna sinks along the length of its riverbed and in summer months it usually dries up completely at the confluence section. Hydrometry surveys undertaken during a drought ...Upravljanje međugraničnim vodama, ranjivost podzemnih voda, monitoring mreža, karstne izdani, Albanija, Crna GoraMomčilo Blagojević, Zoran Stevanović, Milan Radulović, Veljko Marinović, Branislav Petrović. "Transboundary groundwater resource management: needs for monitoring the Cijevna River Basin (Montenegro–Albania)" in Environmental Earth Sciences, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s12665-020-8809-8
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Kvantitativni status podzemnih voda aluvijona Velike Morave (potez Bagrdan - ušće)
Jovana Mladenović, Milan Kresojević, Dušan Polomčić, Dejan Đorđević, Boris Vakanjac, Jugoslav Nikolić, Vesna Ristić Vakanjac (2023)Велика Морава настаје спајањем Јужне и Западне Мораве код Сталаћа и њена дужина тока од формирања до ушћа у Дунав износи 185 км. Укупна сливна површина ове реке заједно са њеним саставницама износи од 37.444 км2 што је територијално око 42% Републике Србије чинећи ову реку њеним главним дреном. Протиче централним делом Србије, најплоднијим земљиштем као и најгушће насељеним деловима наше земље. Добра хидрауличка веза вода Велике Мораве и подземних вода утицале су на то да у оквиру алувијона ...Jovana Mladenović, Milan Kresojević, Dušan Polomčić, Dejan Đorđević, Boris Vakanjac, Jugoslav Nikolić, Vesna Ristić Vakanjac. "Kvantitativni status podzemnih voda aluvijona Velike Morave (potez Bagrdan - ušće)" in Zbornik radova III Kongresa geologa Bosne i Hercegovine sa međunarodnim učešćem, Neum, 21-23.9.2023., Ilidža : Udruženje/udruga geologa u Bosni i Hercegovini (2023)
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Употреба веб платформе Омека за дигиталне библиотеке из домена рударства
У овом раду биће представљена Омека, веб платформа за приказивање дигиталних колекциjа и систем за управљање њиховим садржаjем. Њену примену у области техничких наука, а конкретно у области рударства, приказаћемо на примеру дигиталне библиотеке ROmeka@RGF. За Омеку смо се определили првенствено због чињенице да jе jедноставна за коришћење, има обимну пратећу документациjу и не захтева уско специфичне информатичке вештине што jе чини приступачном за већину корисника, а нарочито за рударске инжењере, коjима jе ова дигитална библиотека првенствено намењена. Документа ...... упита хомоге- низациjа управљање квалитетом угља површи- нски коп роторни багер експло- атациjа руда- рство Без прошире- ња ћирилица 6 0 21 0 13 15 Без прошире- ња латиница 9 14 49 33 50 23 Морфолошко проширење 33 22 106 42 120 106 Семантичко и морфолошко проширење 47 47 118 43 123 ...
... Center for History and New Media (RRCHNM), https://rrchnm.org/ 28 Инфотека, год. 17, бр. 2, 2017. Научни рад групи софтвера отвореног кôда (Open Source Software), под лиценцом GPL v3.0 (General Public License)7, што значи да jе изворни кôд jавно доступан, те се платформа може побољшавати и прилагођавати ...
... потпуна анотациjа обjеката. На 15 основних елемената (title, creator, subject, description, publisher, contributor, date, type, format, identifier, source, language, relation, coverage, rights) додаjе скуп од 40 додатних елемената и то: abstract, access rights, accrual met- hod, accrual periodicity, accrual ...Александра Томашевић, Биљана Лазић, Далибор Воркапић, Михаило Шкорић, Љиљана Колоња. "Употреба веб платформе Омека за дигиталне библиотеке из домена рударства" in Инфотека, Филолошки факултет, Универзитет у Београду; Универзитетска библиотека „Светозар Марковић“; Заједница библиотека универзитета у Србији (2017)
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EUROLAN 2021: Introduction to Linked Data for Linguistics Online Training School
Prva škola za obuku polaznika koju je organizovala COST akcija NexusLinguarum održana je od 8. do 12. februara 2021. godine sa ciljem da studenti, istraživači i stručnjaci nauče osnove lingvističke nauke o podacima. Tokom obuke polaznici su se upoznali sa širokim spektrom tema: od semantičkog veba, RDF -a i ontologija, do modeliranja i pretraživanja jezičkih podataka pomoću najsavremenijih ontoloških modela i alata. Škola je održana u okviru serije letnjih škola EUROLAN-a i organizovalo ju je virtuelno (onlajn) nekoliko instituta; ...nauka o lingvističkim podacima, povezani podaci u lingvistici, jezički podaci, EUROLAN, NexusLinguarum, COST akcija, škola za obuku... were the following: – Semantic Web and Linked Data4 (Berners-Lee et al. 2006); – Ontologies: RDF (Resource description framework), RDF Schema (Re- source Description Framework Schema, variously abbreviated as RDFS, RDF(S), RDF-S, or RDF/S), Web Ontology Language (OWL),5 etc.); – SPARQL query language- ...Milan Dojchinovski, Julia Bosque Gil, Jorge Gracia, Ranka Stanković. "EUROLAN 2021: Introduction to Linked Data for Linguistics Online Training School" in Infotheca, Faculty of Philology, University of Belgrade (2021). https://doi.org/10.18485/infotheca.2021.21.1.7
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The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector
Natural gas is used for the production of almost 20% of total energy today. The natural gas security of the Republic of Serbia is an urgent strategic, political and security issue. Serbia is one of the most vulnerable countries in Southeast Europe, because it only has one supply route. This study is a contribution to efforts to better understand the factors affecting energy security through the implementation of a new methodology based on the fuzzy–AHP synthesis model for measuring ...... E 1·0 1·0 0·0 0·0 0·0 0·0 0·0 0·0 0·0 0·0 D 0·0.388 0·0.388 1·0.388 1·0.388 0.33·0.388 0·0.388 0·0.388 0·0.388 0·0.388 0·0.388 C 0·0.612 0·0.612 0·0.612 0.5·0.612 1·0.612 1·0.612 0.5·0.612 0·0.612 0·0.612 0·0.612 B 0·0 0·0 0·0 0·0 0·0 0.33·0 1·0 1·0 0·0 0·0 A 0·0 0·0 0·0 0·0 0·0 0·0 0·0 0·0 1·0 1·0 ...
... j 1 2 3 4 5 6 7 8 9 10 very negative 0 0 0 0 0 0 0 0 0 0 Negative 0 0 0.27 0.27 0.089 0 0 0 0 0 Neutral 0 0 0 0.23 0.46 0.46 0.23 0 0 0 Positive 0 0 0 0 0 0.089 0.27 0.27 0 0 very positive 0 0 0 0 0 0 0 0 0 0 µE3-SC1 0 0 0.27 0.5 0.549 0.549 0.5 0.27 0 0 For each class as representative of the ...
... scenario 1 (SC1). LV J 0 2 3 4 5 6 7 8 9 10 very low 0.08 0.08 0 0 0 0 0 0 0 0 Low 0 0 0.56 0.56 0.1848 0 0 0 0 0 Moderate 0 0 0 0.16 0.32 0.32 0.16 0 0 0 High 0 0 0 0 0 0.0132 0.04 0.04 0 0 Exceptional 0 0 0 0 0 0 0 0 0 0 µA1-SC1 0.08 0.08 0.56 0.72 0.5048 0.3332 0.2 0.04 0 0 Table 9. Specific fuzzy ...Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković. "The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector" in Symmetry, MDPI AG (2020). https://doi.org/10.3390/sym12060908
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Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material
Borislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić (2022)Pyrophyllite, with the chemical formula Al2Si4O10(OH)2, is a naturally occurring and abundant van der Waals mineral belonging to the group of phyllosilicates. It is very soft, layered crystal used for sculpting and an excellent electrical and thermal insulator aimed for the operation at high pressure and temperature. Here, for the first time, two-dimensional (2D) pyrophyllite obtained by both mechanical and liquid phase exfoliation is presented and investigated at the nanoscale. The layered structure provides low friction coefficient of around ...Atomic force microscopy, Insulating properties, Nanofriction and wear, Natural two dimensional materials, Phyllosilicates, PyrophylliteBorislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić. "Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material" in Applied Surface Science, Elsevier BV (2022). https://doi.org/10.1016/j.apsusc.2022.155114
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Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals
Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić (2020)As the number of poorly soluble drugs is increasing, nanocrystals have become very interesting due to wide range of application possibilities. Curcumin was used as a model active ingredient in this work. Even though it has many proven positive effects, due to its physicochemical issues, its possibilities have not been fully exploited. The goal of this work was to select optimal conditions for a top-down method for curcumin nanosuspension production, and to perform their comprehensive characterization applying complementary methodologies: ...Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić. "Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals" in Review on advanced materials science, Walter de Gruyter GmbH (2020). https://doi.org/10.1515/rams-2020-0043
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Photocatalytic Activity of the V2O5 Catalyst toward Selected Pharmaceuticals and Their Mixture: Influence of the Molecular Structure on the Efficiency of the Process
Sanja J. Armaković, Aleksandra Jovanoski Kostić, Andrijana Bilić, Maria M. Savanović, Nataša Tomić, Aleksandar Kremenović, Maja Šćepanović, Mirjana Grujić-Brojčin, Jovana Ćirković, Stevan Armaković (2023)Due to the inability of conventional wastewater treatment procedures to remove organic pharmaceutical pollutants, active pharmaceutical components remain in wastewater and even reach tap water. In terms of pharmaceutical pollutants, the scientific community focuses on -blockers due to their extensive (over)usage and moderately high solubility. In this study, the photocatalytic activity of V2O5 was investigated through the degradation of nadolol (NAD), pindolol (PIN), metoprolol (MET), and their mixture under ultraviolet (UV) irradiation in water. For the preparation of V2O5, facile ...DFT analysis, metoprolol, nadolol, nanomaterial characterization, photocatalysis, pindolol, β-blocker... were conducted on a Rigaku Smartlab X-ray diffractometer in 0-0 geometry (the sample in horizontal position) in part focusing on Bragg-Brentano geometry using a D/teX Ultra 250 strip detector in 1D standard mode with a CuKou, > radiation source (U = 40 kV and I= 30 mA). The XRPD patterns were collected ...
... 655 5of18 Spectrum 1 V A o A |A o 1 2a 3 4 5 6 7/ B 0 10 Full Scale 4432 cts Cursor:-0.124 KeV (0 cts) keV v Spectrum 2 V o V r - ——— e O 1 2 3 4 5 6 7 8 9 10 100 ım Electron Image 1 Full Scale 4432 cts Cursor:-0.124 KeV (0 cts) keV Figure 4. SEM image (left) with corresponding, EDS ...
... || . . 0 5 10 30 60 120 0 5 10 30 60 120 Time (min) Time (min) Figure 12. NAD, PIN, and MET mixture degradation kinetics under UV irradiation: (a) without VOs and (b) with V»Os catalyst. 9.00 MDF W Photocatalysis 8.00 7.00 6.00 „. 500 — 4.00 3.00 2.00 1.00 0.00 0 5 10 30 ...Sanja J. Armaković, Aleksandra Jovanoski Kostić, Andrijana Bilić, Maria M. Savanović, Nataša Tomić, Aleksandar Kremenović, Maja Šćepanović, Mirjana Grujić-Brojčin, Jovana Ćirković, Stevan Armaković. "Photocatalytic Activity of the V2O5 Catalyst toward Selected Pharmaceuticals and Their Mixture: Influence of the Molecular Structure on the Efficiency of the Process" in Molecules, MDPI AG (2023). https://doi.org/10.3390/molecules28020655
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Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy
Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag (2014)... and lagoonal dolomites, sandstones, limestones and marls. The se- quence was formed on a broad homoclinal ramp located close to the terrigeneous source (Haas et al. 1988). The sequence includes the reddish grey, bituminous, well stratified or laminated, poorly fossiliferous limestone and dolomite ...
... al. 1999; Budai 2006), the notable lack of redeposited pPlatform elements in the basinal limestone is evidence for distant deposition from the source of shallow mar- ine platform elements. The lithology and microfauna (conodonts and radiolarians) of the lower unit is char- acteristic of the ...
... , Spec. Puab., 30: 203-231. Brandner R., Flugel E. & Senowbari-Daryan B. (1991) - Microfacies of carbonate slope boulders: Indicators of the source area (Middle Triassic: Mahiknecht Cliff, \Western Dolomites). Faaes, 25: 279-296. Ladinian platform progradation in tbe Tapolca Basm, westeyn ...Zsolt Robert Nagy, Nevenka Đerić, Sándor Kovács, Anna Oravecz-Scheffer, Felicitász Velledits, Olga Piros, Gabor Csillag. "Evidence for Ladinian (Middle Triassic) platform progradation in the Gyulakeszi area, Tapolca Basin, Western Hungary: Microfacies Analysis and Biostratigraphy" in Rivista Italiana di Paleontologia e Stratigrafia (2014)