Претрага
265 items
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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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Keyword Extraction from Parallel Abstracts of Scientific Publications
... in the procedure of keyword candidate ranking and extraction [8,9]. The node in/outselectivity and generalized in/out- selectivity values are calculated from a directed weighted network as the average weight distributed on the ingoing/outgoing links of the single node and used in the procedure of keyword ...
... use: (1) Stop-word list - extracted from the Natural Language Toolkit (NLTK) for Python [11], and (2) the Porter stemmer [11] for stemming as a procedure to map all words with the same stem to a common form (stem). Its main use is as part of the term normalization process (removing the inflectional ...
... performed per each text document in the collection. SBKE method does not include calculation of C-Value, T-Score, LLR, and Keyness, it follows the procedure described in Subsect. 2.1. Table 1 presents the descriptive statistics for 50 parallel abstracts in the Ser- bian and English language including ...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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Definition of criteria and alternatives for choosing the optimal mining method deposits when applying multi: Criteria optimization, Belgrade, June 2024
Sanja Bajić, Dragoljub Bajić, Branko Gluščević, Radmila Gaćina, Josip Išek. "Definition of criteria and alternatives for choosing the optimal mining method deposits when applying multi: Criteria optimization, Belgrade, June 2024" in Podzemni radovi, Beograd, jun 2024, Centre for Evaluation in Education and Science (CEON/CEES) (2024). https://doi.org/10.5937/podrad2444071B
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Permanent GNSS monitoring of landslide Umka
Mileva Samardžić Petrović, Jovan Popović, Uroš Đurić, Biljana Abolmasov, Marko Pejić, Miloš Marjanović (2020)Клизиште Умка је једно од највећих насељених активних клизишта у Србији. Активност клизишта Умка се прати већ више од 85 година, различитим геотехничким и геодетским техникама. Од 2010. године, активност kлизишта се континуирано прати у реалном времену аутоматизованим перманентним системом за праћење базираним на Глобалним навигационим сателитским системима (ГНСС). Поред тога, од 2018. године активност клизишта се додатно прати кинематичким ГНСС одређивањем положаја скупа карактеристичних тачака као и применом UAV фотограметрије. Главни циљ овог рада је приказ резултата опажања три ...... LANDSLIDE UMKA displacements obtained from two applied GNSS techniques, for the first procedure (automated GNSS monitoring), only a brief overview will be given further below as well. The third procedure will not be discussed within this paper. 3.1. Automated gnss monitoring As already explained ...
... of this paper is the presentation of the results gained with GNSS kinematic positioning of characteristic points of Umka landslide, the second procedure, as well as the obtained results, will be explained in more detail further below. In order to compare the 94 PROCEEDINGS OF INTERNATIONAL CONFERENCE ...Mileva Samardžić Petrović, Jovan Popović, Uroš Đurić, Biljana Abolmasov, Marko Pejić, Miloš Marjanović. "Permanent GNSS monitoring of landslide Umka" in International Conference on Contemporary Theory and Practice in Construction XIV Stepgrad, University of Banja Luka, Faculty of Architecture, Civil Engineering and Geodesy (2020). https://doi.org/10.7251/STP2014091S
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Examination and characterization of nanostructured Co0.9Ho0.1MoO4
Милена Росић, Маја Милошевић, Мариа Чебела, Владимир Додевски, Весна Лојпур, Марија Васић, Александра Зарубица (2023)... Science and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia The nanostructured powderwas synthesized by the glycine nitrate procedure (GNP) because it proved to be the most effective and simplest method suitable for controlling the composition and morphology of CoooHooiMoOua ...Милена Росић, Маја Милошевић, Мариа Чебела, Владимир Додевски, Весна Лојпур, Марија Васић, Александра Зарубица. "Examination and characterization of nanostructured Co0.9Ho0.1MoO4" in Serbian Ceramic Society Conference - Аdvanced ceramics and application XI New Frontiers in Multifunctional Material Science and Processing Program and the Book of Abstracts, Serbian Academy of Sciences and Arts, Serbia, Belgrade, 18-20. September 2023., Belgrade : Serbian Ceramic Society (2023)
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Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays
... from 2007 [55], and the maximum allowed distances from all presented examples from the Serbian Rulebook. The presented and described exploration procedure can be summarized as follows: Resources 2021, 10, 63 6 of 18 1. The recommended distances between exploration works for clay deposits (Table ...
... Figure 1. Interrelation between the origin of a mineral deposit and economic geology. 4.1. Permitting in Serbia 4.1.1. Mining Sector The general procedure for exploration and exploitation of the new mine/quarry is divided in four steps: geological exploration, approval of exploitation, approval of execu- ...
... tion of mining operations, and approval for the use of mining facilities (Figure 2). Resources 2021, 10, 63 10 of 18 Figure 2. General procedure for permitting in Serbia with all necessary documents (light colour) and corresponding certificate/approval/permit (darker colour) for the whole ...Vladimir Simić, Dragana Životić, Zoran Miladinović. "Towards Better Valorisation of Industrial Minerals andRocks in Serbia—Case Study of Industrial Clays" in Resources, MDPI AG (2021). https://doi.org/10.3390/resources10060063
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Mineralogical Discrimination between Authentic and Recent Imitations of Pottery Manufacture in Zlakusa, Serbia
... moisture absorption showed that in this respect there was no significant difference between the samples, which would indicate the manufacturing procedure. Sample -1- has slightly higher water absorption than the the rest of the samples. Differences in terms of manufacture processes and ...Maja Milošević, Mihovil Logar, Biljana Đorđević. "Mineralogical Discrimination between Authentic and Recent Imitations of Pottery Manufacture in Zlakusa, Serbia" in Nordic Clay Meeting/3rd Symposium Clays & Ceramics 2021, The Latvian Clay Science Society (2021)
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Threshold-induced correlations in the Random Field Ising Model
... process of thresholding, becomes of a power law type, indicating the onset of the apparent correlations in the system. Results �resholding is a procedure applied to data either intentionally, or e�ectively due to the device limitations in experimental measurements where the thresholding cannot be avoided31 ...
... process of thresholding, becomes of a power law type, indicating the onset of the apparent correlations in the system. Results Thresholding is a procedure applied to data either intentionally, or effectively due to the device limitations in experimental measurements where the thresholding cannot be avoided*" ...
... for individual avalanche types, but also for larger portions of the response signal. Discussion Our results demonstrate that when a thresholding procedure is applied to a RFIM signal at T = 0, temporal corre- lations emerge between the avalanches. �ese correlations are detectable in a form of power-law ...Sanja Janićević, Dragutin Jovković, Lasse Laurson, Đorđe Spasojević. "Threshold-induced correlations in the Random Field Ising Model" in Scientific Reports, Springer Science and Business Media LLC (2018). https://doi.org/10.1038/s41598-018-20759-6
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The Dictionary of the Serbian Academy: from the Text to the Lexical Database
In this paper we discuss the project of digitization of the Dictionary of the Serbo-Croatian Standard and Vernacular Language. Scanning and character recognition were a particular challenge, since various non-standard character set encoding was used in the course of the almost 60-year long production of the dictionary. The first aim of the project was to formalize the micro-structure of the dictionary articles in order to parse the digitized text of and transform it into structured data stored in relational lexical database. This approach ...... The procedure that was presented in this paper was applied to the digitization of the 1st (1959) and 19th (2014) volumes of the DSA. As a result, the structured documents were obtained in standardized formats and they were subsequently loaded into the lexical database. The automatic procedure recog- ...
... order to fi nd the most suitable solution. MS Word documents formatted identically as the print versions were input to the automatic segmen- tation procedure. One thus prepared dictionary article is presented on the left side of Figure 2, while the result of the segmentation of the same dictionary article ...Ranka Stanković, Rada Stijović, Duško Vitas, Cvetana Krstev, Olga Sabo. "The Dictionary of the Serbian Academy: from the Text to the Lexical Database" in Proceedings of the XVIII EURALEX International Congress: Lexicography in Global Contexts, Ljubljana : Ljubljana University Press, Faculty of Arts (2018)
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Determination of Mechanical Properties of Altered Dacite by Laboratory Methods
This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...... (Figure 2), hermetically wrapped in polyethylene bags and transported to the laboratory. The composite specimens were prepared according to the procedure proposed by Tziallas et al. [1]. Cylindrical samples, 54 mm in diameter, of rock material were extracted by a high-quality laboratory coring machine ...
... and diameter ratio with tolerances according to the American Society for Testing and Materials—ASTM [17] (Figure 3). Due to the previously shown procedure, monolithic rock material (100% D and 100% AD) specimens and discs of rock material were prepared. Discs of rock material were used to form groups ...
... discs were observed, even at higher compressive loads. These findings are used in the present study. Minerals 2021, 11, 813 5 of 19 Figure 3. Procedure for preparation of specimen for laboratory tests: (a) drilling process, (b) cutting process. Figure 4. Scheme of tested samples preparation. The ...Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović. "Determination of Mechanical Properties of Altered Dacite by Laboratory Methods" in Minerals, MDPI AG (2021). https://doi.org/10.3390/min11080813
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Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining
... the excavator parts were performed based on available laboratory data for cutting resistance, which was determined by the standard wedge testing procedure that did not include the influence of water pressure at a certain depth at which coal is mined. The bucket-wheel dredger performance analysis so far ...
... by water, at its cylindrical surface and at the top, leading to a pressure equal to the cell pressure being generated in the sample [27]. The test procedure is to keep the confining pressure constant during the test. Triaxial apparatus features are shown in Figure 9 [28]. σ (a) (b) Figure 9. Triaxial ...
... with water, with the pressure in the water being controlled by a pressure unit, and the sample is subjected to an equal confining pressure. The test procedure is to keep the confining pressure constant during the test. Figure 13. Basic equipment parts for underwater coal mining cutting resistance testing ...Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić. "Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining" in Minerals, MDPI AG (2021). https://doi.org/10.3390/min11060564
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Concepts for Improving Machine Learning Based Landslide Assessment
Miloš Marjanović, Mileva Samardžić Petrović, Biljana Abolmasov, Uroš Đurić. "Concepts for Improving Machine Learning Based Landslide Assessment" in Natural Hazards GIS-based Spatial Modeling Using Data Mining Techniques, Advances in Natural and Technological Hazards Research, volume 48, Springer Nature Switzerland AG 2019 (2019). https://doi.org/10.1007/978-3-319-73383-8_2
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Business Models for Small-scale Biomass Projects Development
Biomass is recognized as the most promising renewable energy source in Serbia. The share of biomass in Serbian final energy consumption is over 10%, but mostly related to traditional use in stoves and ovens. One of the main obstacles for wider implementation of contemporary biomass facilities is the inexperience of consumers and stakeholders in the implementation of “innovative” business models, especially in the cases of small-scale projects. In this paper, three different business models (public utility company, energy cooperative ...... local households, individually or jointly in a cooperative or other legal entity, should not have preferential treatment in the public procurement procedure. However, it is well known that transport costs have significant share in the price of biomass, and from that point of view, local biomass producers ...
... lacks sufficient financial, technical and human capacities to implement such a project, local self-government unit could implement the procurement procedure to get private partner (ESCO company) for project implementation. Thereafter, the local self-government unit concludes a public-private partnership ...Dejan Ivezić, Miodrag Gluščević, Marija Živković. "Business Models for Small-scale Biomass Projects Development" in 19th International Conference on Thermal Science and Engineering of Serbia, Niš : Faculty of Mechanical Engineering (2019)
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Чији је пример? Анализа лексичких обележја на примерима Речника САНУ
У овом раду поставља се питање: да ли се може утврдити ко је аутор неког текста уколико се анализирају искључиво његова лексичка обележја? Како бисмо покушали да добијемо одговор на ово питање, посматрали смо примере у оквиру речничког чланка појединачне лексеме Речника САНУ, који су забележени у пет томова (и то: I, II, XVIII, XIX и XX). Сваки пример је преузет из неког извора на шта упућују скраћенице, наведене у заградама. Од преко 5.000 понуђених извора, определили смо се ...... знатно убрзао. Први резултати рада на дигитализацији, која је отпочела 2016. године, публиковани су у раду Стијовић/Станковић (2018) где су дате: процедуре за анализу дигитализованог текста 1. и 19. тома, сегментирани речнички чланци и информационе целине у оквиру речничког чланка према моделу. У настав- ...
... речничких чланака појединачних лексема имао цитиране примере (чак 70% од укупног броја речничких чланака). 4. Веб сервис и израчунавање обележја Процедура екстракције обележја тече на следећи начин: рачунарски про- грам израчунава нумеричке вредности различитих обележја за сваки пример (то важи и за ...
... моделирање преовлађујућих тема Моделирање преовлађујућих тема у тексту постала је популарна про- цедура за груписање докумената у семантичке групе. Ова процедура омо- гућава да се од сирових текстуалних података добије интерактивна визуа- лизација тематског модела, која за циљ има откривање тематских мотива ...Бранислава Б. Шандрих, Ранка М. Станковић, Мирјана С. Гочанин. "Чији је пример? Анализа лексичких обележја на примерима Речника САНУ" in Српски језик и његови ресурси, Међународни славистички центар, Филолошки факултет, Универзитет у Београду (2019). https://doi.org/10.18485/msc.2019.48.3.ch13
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Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders
Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica (2023)... Science and Mathematics, Universityof Niš, Fišegradska 33, 18000 Niš, Serbia CooSlHop,MoO, nanopowders were obtained by applying glycine nitrate procedure (GNP). The synthesized samples were investigated by DTA, X-ray diffraction (KRD), Fourier transform infrared (FT-IR) spectra, Spectroscopy, Field ...Milena Rosić, Maja Milošević, Maria Čebela, Vladimir Dodevski, Vesna Lojpur, Radomir Ljupković, Aleksandra Zarubica. "Synthesis, characterization and photocatalytic examination of Co0.9Ho0.1MoO4 nanopowders" in Programme and the book of abstracts 7th Conference of The Serbian Society for Ceramic Materials 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia , Beograd : Institut za multidisciplinarna istraživanja (2023)
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Sistem poslovne inteligencije za upravljanje zaštitom na radu u rudarskoj industriji
Ljiljana R. Kolonja (2016-09-23)Postojeća organizacija zaštite na radu na površinskim kopovima uglja često nije umogućnosti da blagovremeno i tačno ukaže na nedostatke, koji mogu u bližoj ilidaljoj budućnosti da budu uzrok narušavanja bezbednosti radnika, ali i uzrokoštećenja materijalnih dobara rudnika. Nemogućnost donošenja pravovremenihodluka je moguće izbeći uvođenjem softverski podržanih sistema za praćenje ianalizu bezbednosti i zaštite na radu.Osnovni cilj ove doktorske disertacije je definisanje metodologije i razvoj modelasistema upravljanja zaštitom na radu, koji će omogućiti savremen, adekvatan isveobuhvatan način praćenja i analize ...... generišu dinamički, korišćenjem domenskih meta podataka koje održava sistemsko‐administrativni deo aplikacije. Interfejs za kontrolu domena je ugrađen u aplikaciju i koriste ga korisnici sa administrativnim privilegijama, pri čemu mogu da kreiraju nove domene, interaktivno modifikuju ...
... više od tradicionalnog pristupa predstavljenog 16 hijerarhijom elemenata kontrole – eliminacijom, substitucijom, izolacijom, administrativnim kontrolama i, na kraju, ličnim zaštitnim sredstvima. Na bazi ispitivanja, autori iznose da su opcije tradicionalnog pristupa mnogo ...
... realizuju. OHSAS politika takođe predviđa i potrebu redovnog razmatranja i ažuriranja dokumentacije i u okviru nje neophodnih procedura. Procedure treba da budu razvijene tako da se vrši neometan protok informacija unutar same organizacije i ka spoljnim faktorima, uz povratne informacije ...Ljiljana R. Kolonja. "Sistem poslovne inteligencije za upravljanje zaštitom na radu u rudarskoj industriji" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-23)
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Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko-energetskim kompleksima
Jelena R. Malenović - Nikolić (2016-07-12)Efikasnost funkcionisanja sistema upravljanja zaštitom životne sredine u rudarskoenergetskimkompleksima zavisi od stepena sprovođenja usvojene politike zaštiteživotne sredine i primene preventivnih mera zaštite životne sredine. Nedostatakfinansijskih sredstava za unapređivanje tehnologije eksploatacije, transporta, pripreme iprerade energetskih mineralnih sirovina u našim rudarsko-energetskim kompleksima,negativno utiče na ostvarivanje ciljeva zaštite životne sredine, a posledice radnihaktivnosti rudarsko-energetskih kompleksa dovode do smanjenja nivoa kvalitetavazduha, vode i zemljišta...rudarsko-energetski kompleks, životna sredina, sistem upravljanja,višekriterijumsko odlučivanje, modeliranje... Definisanje postupaka reagovanja u slučaju vanredne situacije u rudarsko-energetskom kompleksu Usvajanje procedura za pripravno reagovanje u vanrednim situacijama Preispitivanje i korigovanje procedura za pripravno reagovanje u vanrednim situacijama Izrada plana reagovanja, raspodele odgovornosti i ...
... Utvrđivanje predloga izmene procedura za pripravno reagovanje u vanrednim situacijama Uspostavljanje, primena i održavanje postupakazaštite životne sredine u okviru postupaka adekvatnog reagovanja u vanrednim situacijama Periodična provera postojećih planova i procedura za pripravno reagovanje u ...
... 3 days Thu 2.6.16 Mon 6.6.16 99 Uspostavljanje procedura za efikasnu komunikaciju u vanrednim situacijama 2 days Tue 7.6.16 Wed 8.6.16 100 Unapređivanje programa interne i eksterne komunikacije 3 days Thu 9.6.16 Mon 13.6.16 101 Dokumentovanje procedura za funkcionisanje sistema zaštite životne sredine ...Jelena R. Malenović - Nikolić. "Modeliranje sistema upravljanja zaštitom životne sredine u rudarsko-energetskim kompleksima" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-07-12)
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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)... in optimal decision making. The solutions are optimized by fuzzy extent analysis, applying the FAHP method described in |*|. The optimization procedure and decision making; are presented in seven steps [12]. Step 1. Mathematical optimization begins with predefined criteria that affect the selection ...
... option or optimal mining: technology in the given case. The second best is Alternative 3, followed by Alternative 4. The proposed optimization procedure highlights the use of knowledge, intu- ition, and experience of engineers to gather all the necessary information about the natural system of ...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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Using English Baits to Catch Serbian Multi-Word Terminology
In this paper we present the first results in bilingual terminology extraction. The hypothesis of our approach is that if for a source language domain terminology exists as well as a domain aligned corpus for a source and a target language, then it is possible to extract the terminology for a target language. Our approach relies on several resources and tools: aligned domain texts, domain terminology for a source language, a terminology extractor for a target language, and a ...aligned texts, word alignment, terminology extraction, electronic dictionaries, morphological inflection... terminological dictionary exists. Our term extractor is based on e-dictionaries and shallow parsing, and for word alignment we use GIZA++. At the end of procedure we included a supervised binary classifier that decides whether an extracted term is a valid domain term. The classifier was evaluated in a 5-fold ...
... (Krstev, 2008). These inflected forms have various grammatical codes assigned to them that were used in the step 4. 3. We performed the similar procedure for English nouns, verbs and adjectives from the bilingual list. In lemma of a multi-word form bibliotečko-informacionom delat- nošću is bibl ...
... papira, upija- jućem papiru, . . . and blotting papers↔ upijajuće pa- pire, upijajući papiri, upijajućih papira, . . . At the end of this procedure we obtained the bilingual list of inflected forms having 372,432 entries. 4.5. Alignment of Chunks In order to acquire a list of aligned bilingual ...Cvetana Krstev, Branislava Šandrih, Ranka Stanković. "Using English Baits to Catch Serbian Multi-Word Terminology" in Proceedings of the 11th International Conference on Language Resources and Evaluation, LREC 2018, Miyazaki, Japan, May 7-12, 2018, European Language Resources Association (ELRA) (2018)
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Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders
Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić (2023)... was recorded at room temperature and atmospheric pressure without of any re-heating of the sample. The Rietveld method for fitting refinement procedure was performed which showed the incorporation of Ag** ions in the CuO crystal lattice, where they substitute Cuž* ions. SQUID magnetometer was used ...Maria Čebela, Uroš Čakar, Vesna Lojpur, Maja Milošević, Sanja Krstić, Vladimir Dodevski, Milena Rosić. "Influence of Ag doping on the morphological and magnetic properties in CuO nanopowders" in Programme ; and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia , Beograd : Institut za multidisciplinarna istraživanja, (2023)