Претрага
497 items
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Hidrogeohemijska valorizacija esencijalnih mikroelemenata mineralnih voda Srbije
Jana S. Stojković (2013-09-25)Mineralne vode još od davnina privlače pažnju ljudi i to kako u pogledu istraživanja iproučavanja, tako i u pogledu njihovog iskorišćavanja. Naročito je važno poznavanjesadržaja mikroelemenata u njima, jer su to komponente njihovog hemijskog sastavakoje ih odvajaju od tzv. „običnih“ malomineralizovanih voda.U ovom radu proučavani su odabrani esencijalni mikroelementi (fluor, bor, litijum,kalijum, stroncijum i silicijum), u mineralnim vodama Srbije, pri čemu je analiziranopreko 130 uzoraka mineralnih voda iz različitih geoloških sredina, to jest hidrogeološkihrejona. Cilj ovog istraživanja bio je ...esencijalni mikroelementi, faktori migracije, zakonomernosti rasprostranjenja, hidrogeohemijski procesi, multivarijantna statistička analiza, mineralne vode Srbije... al processes on each cluster has also been examined. By making distribution maps of microelements concentration in mineral waters of Serbia, as well as by constructing statistical diagrams, pattern of spatial distribution of analyzed microelements have been perceived, as well as the extent ...
... appearance of high concentrations of each of six considered microelements have been defined by comparing analysis of distribution maps of (maximum) factor scores to distribution maps of microelements concentrations. The high content of fluorine is connected to the activity of the first and the ...
... of gathered information. Besides statistical calculations (software packages IBM SPSS Statistics 19.0 and StatSoft STATISTICA 10.0), spatial distribution of microelements in mineral waters of Serbia has been studied (software package Esri ArcGIS 9.3), and hydrochemical modeling has been applied ...Jana S. Stojković. "Hidrogeohemijska valorizacija esencijalnih mikroelemenata mineralnih voda Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-09-25)
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Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings
... Nepričava. 3. Equation of Rock Mass Oscillation To establish the correlation between the oscillation velocity and three basic parameters affecting its size: the explosive quantity, properties of rock material and the distance, there have been developed several mathematical models in the world. One of the ...
... Nepriéava. 3. Equation of Rock Mass Oscillation To establish the correlation between the oscillation velocity and three basic parameters affecting its size: the explosive quantity, properties of rock material and the distance, there have been developed several mathematical models in the world. One of the ...Suzana Lutovac, Branko Gluščević, Rade Tokalić, Jelena Majstorović, Čedomir Beljić. "Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings" in Minerals, Basel : MDPI AG, Basel, Switzerland (2018). https://doi.org/10.3390/min8020070
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Softverski alati za korišćenje resursa za srpski jezik
Ivan Obradović, Ranka Stanković (2008)... dictionaries of simple words IVAN OBRADOVIć, RANKA STANKOVIć 49a The system of morphological dictionaries sup- ports the distribution of the dictionaries, namely enables the distribution of lemmas in several dic- tionaries, such as the dictionary of toponyms or dictionary of proper names. This is important ...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 ...... OH Groups, Water and Clays Modes characteristic of O-H vibrations are only detected in grain cores (Figure 9), which is ascribed the de-hydroxylation induced by the firing: the bulk temperature of a grain is fixed by the internal reaction until the reaction front has reached its core. Therefore ...
... except for in three spots with lower values (40 and 5 wt %) and one spot with a much higher content (~60 wt %). The low-silica spot corresponds to a grain made of iron oxide (Fe)»Os = 88 wt %). The alumina content is low (~2-7 wt %), except for in three spots (~13 and 28 wt %). Aluminum arises mainly ...
... representative Raman spectra recorded from the white fiber yarns located at the top left of sample b (spectrum #0) and on the section of a large grain (#4). Materials 2020, 13, 3597 B8of18 Al M 'l Fe 7: ca K ·•š V J cCr Š' |-- i 4 | : I_ E = i ca 5 ež | S : 1032 1062 Fe N ...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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Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)
Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović. "Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)" in Carbonates and Evaporites, Springer Science and Business Media LLC (2020). https://doi.org/10.1007/s13146-019-00548-6
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Prvi nalazi repatih vodozemaca (Urodela) u pleistocenskoj pećinskoj fauni Srbije; još jedna kockica u slagalici
Fosilna fauna pleistocenskih pećina odslikava sastav faune njihove okoline. Najčešće se u njima naleze ostaci krupnih sisara ledenog doba koji su je koristili kao stanište. Uz njih česti su i ostaci drugih sitnih kičmenjaka kao što su sitni sisari, ribe, vodozemci, gmizavci i ptice. Ostaci sitnih kičmenjaka u većini slučajeva u pećinu dospevaju kao plen grabljivica (ptice i sisari) ali je manji broj njih pećinu koristio i kao sklonište ili stanište. U proučavanje fluktuacija pleistocenske klime sve češće se ...... eroded, and this vertebra is identified as 77'ifurus cf. karelinii. Today's representatives of the family Salamandridac have wide but disjunct distribution in the northem hemisphere. However, anthropogenic influences arc increasingly affecting the reduction of their numbers. Like other amphibians ...Dragana Đurić, Katarina Bogićević, Draženko Nenadić, Mihajlo Jovanović, Aleksandra Savković. "Prvi nalazi repatih vodozemaca (Urodela) u pleistocenskoj pećinskoj fauni Srbije; još jedna kockica u slagalici" in Zbornik sažetaka III Kongresa geologa Bosne i Hercegovine sa međunarodnim učešćem. Neum, 21.-23. septembar/rujan 2023, Ilidža : Udruženje geologa Bosne i Hercegovine (2023)
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Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala
Srđan B. Stanković (2016-09-11)Jezero Robule, formirano u podnožju rudničke raskrivke Oštreljski planir (Rudnik bakra Bor), je nastalo kao posledica rudarskih aktivnosti. Mikrobiološki diverzitet ekstremno kiselog jezera Robule ispitivan je primenom kako klasičnih mikrobioloških metoda (svetlosna mikroskopija i kultivacija na selektivnim podlogama) tako i primenom savremene metode molekularne biologije (analiza polimorfizama terminalnih restrikcionih fragmenata; T-RFLP). Takođe, ispitivan je i potencijal i efikasnost jezerske vode u biološkom luženju mineralnog koncentrata, kao i u bioluženju uzoraka stare flotacijske jalovine Rudnika bakra Bor.Na osnovu dobijenih rezultata ...... 12500 15000 17500 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 Size (nt) 212.89 214.80 215.84 216.93 249.74 252.42 253.46 254.44 653.12 0 2500 5000 7500 10000 12500 0 100 200 300 400 500 600 700 Size (nt) 262.96 264.91 374.36 519.28 707.86 69 Slika 20. Relativna ...
... pojave samosparivanja najzastupljenijih 0 2500 5000 7500 10000 12500 15000 17500 20000 0 50 100 150 200 250 300 350 400 450 500 550 600 650 Size (nt) 203.88 231.53 297.67 415.30 28 fragmenata DNK (eng. self-anealing), kao i različitog afiniteta prajmera prema različitim molekulima ...
... dodavano po 2 µL produkta digestije i 28 µL rastvora koji sadrži 0,5 µL standarda u formamidu. Za Beckman Coulter CEQ 8000 je korišten standard CEQ DNA Size Standard Kit 600 koji sadrži fragmente DNK dužine od 60 do 600 bp. Za Applied Biosystems 3130 Genetic Analyzer korišten je GeneScan 500 LYS ...Srđan B. Stanković. "Mikrobiološki diverzitet kiselog jezera Robule i uticaj jezerske vode na oksidaciju sulfidnih minerala" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-11)
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Towards translation of educational resources using GIZA++
... English, there is a need to translate them into other languages. GIZZA++ is the right tool for that, but it needs a parallel corpus of significant size, that depends from language and domain. First a DTD scheme neds to be used to validate and check well-formedness. Then it is necessary to pair the ...Ivan Obradović, Dalibor Vorkapić, Ranka Stanković, Nikola Vulović, Miladin Kotorčević. "Towards translation of educational resources using GIZA++" in The Seventh International Conference on e-Learning (eLearning-2016), September 2016, Belgrade : Metropolitan Univesity (2016)
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Analysis of the exhaust emissions inventory from auxiliary mining machines
Stevan Đenadić, Aleksandar Mirković, Jovana Mitrović, Filip Miletić, Predrag Jovančić, Dragan Ignjatović (2023)Open-pit coal mines are equipped with a large number of mining machines and vehicles with diesel engines. Due to common daily operation of these machines and vehicles large amounts of exhaust gases which contain numerous pollutants are emitted into the atmosphere. The demand to reduce air pollution induced the activities in developed countries to map and calculate all gases emitted by industries to formulate and select adequate preventive activities. In collaboration with machine manufacturers, emission standards for off-road machines ...Stevan Đenadić, Aleksandar Mirković, Jovana Mitrović, Filip Miletić, Predrag Jovančić, Dragan Ignjatović. "Analysis of the exhaust emissions inventory from auxiliary mining machines" in 9th International Conference Mining and Environmental Protection, University of Belgrade, Faculty of Mining and Geology (2023)
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Infotheca (Q25460443) in Wikidata
Ranka Stanković, Lazar Davidović (2021)Vikipodaci su baza znanja Zadužbine Vikimedija koja predstavlja zajednički izvor različitih vrsta podataka koje koriste ne samo drugi Vikipedijini projekti, već sve više i brojne aplikacije semantičkog veba. U ovom radu ćemo prezentovati primer integracije Vikipodataka sa digitalnim bibliotekama i eksternim sistemima, kao i mogućnost ubrzanja pripreme i unosa podataka na primeru radova iz časopisa za digitalnu humanistiku Infoteka.... tables of the latest published articles, frequency of the keywords in articles, pictures of authors, author profile table, co-authorship graph, distribution of authors by sex, etc. were written.The information about authors consists of basic data that 94 Infotheca Vol. 21, No. 1, September 2021 ...Ranka Stanković, Lazar Davidović. "Infotheca (Q25460443) in Wikidata" in Infotheca, Faculty of Philology, University of Belgrade (2021). https://doi.org/10.18485/infotheca.2021.21.1.5
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Димензионисање камионског транспорта јаловине на површинском копу Угљевик Исток 1
Наталија Терзић (2024)Напредовањем рударења дошло је до потребе за експлоатацијом сложенијих и сиромашнијих лежишта, самим тим и повећањем трошкова.Профитабилна експлоатација лежишта минералних сировина захтева детаљну анализу свих техничко-економских фактора.Два најутицајнија фактора на профитабилност експлоатације руде јесу откопавање и транспорт, због тога је неопходно направити изводљив стратешки план који ће бити у складу са свим ограничењима и омогућити испуњавање свих планираних резултата.Транспорт на површинским коповима одвија се паралелно са осталим процесима експлоатације, стога је неопходно да сви системи буду усаглашени како не ...... Travel Time min/ Cycle 11.20 SpotTime at Dump min/ Cycdle 0.30 Average Dump Time min/ Cycle 0.20 Average Cycle Time min/ Cycle 16.82 Fleet Size 4 Average No. ofBucketPasses 877 Production perYear ftonne/Year 2,037,151 Discounted Capital Cost Sfonne 0.00 Loading Methodology Discounted ...
... 00 TravelTime | min/Cyde 20,51 Spot Time atDump - min/Cycie o,30 Average Dump Time - min/Cycs o,20 Average Cycle Time - min/Cyce 28,68 Fleet Size s Average No. of Bucket Passes 5,00, yulage System Production per Year - tonne/Year 4246115 Discourtted Capital Cost S/tonne O,OD _ Loading M ...
... | Auto MG 030 D Cnuka 30. Jleraxban rpopauyH cHrypHux Op3HHa rto JeoHHHaMa |+ Productivity Summary - Full Simulation | m | [ ag Eopot Fleet Size 5 Producton per Operating Hour 196 86 tomne Average Loading Time 400 min DUMP Average Dump Time- 020 mn (Queue Time atLoader — 338 mm Wait Time ...Наталија Терзић. Димензионисање камионског транспорта јаловине на површинском копу Угљевик Исток 1, 2024
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A Data Driven Approach for Raw Material Terminology
Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja (2021)The research presented in this paper aims at creating a bilingual (sr-en), easily searchable, hypertext, born-digital, corpus-based terminological database of raw material terminology for dictionary production. The approach is based on linking dictionaries related to the raw material domain, both digitally born and printed, into a lexicon structure, aligning terminology from different dictionaries as much as possible. This paper presents the main features of this approach, data used for compilation of the terminological database, the procedure by which it has ...sirovine, rudarstvo, terminologija, rečnik, terminološka aplikacija, mobilna aplikacija, digitizacija, leksički podaci, korpusi, otvoreni povezani podaci... inspired by a similar approach Appl. Sci. 2021, 11, 2892 14 of 22 for other languages. The distribution of the characteristics of examples from this corpus is compared with the characteristics of the distribution of the sample sentences extracted from the corpus that contains different texts. The approach ...
... effective collaboration via the internet, as well as the use of mobile devices were highlighted in literature [4]. The impact of mobile devices as a distribution method is immense, and a mobile-first approach is now instrumental. The general shift towards (mobile) life online brought a clear realization that ...Olivera Kitanović, Ranka Stanković, Aleksandra Tomašević, Mihailo Škorić, Ivan Babić, Ljiljana Kolonja. "A Data Driven Approach for Raw Material Terminology" in Applied Sciences, MDPI AG (2021). https://doi.org/10.3390/app11072892
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Hibridni sistem za planiranje i analizu ventilacije rudnika
... Aerodynamic Resistance Distribution in Ventilation Networks Modeling and Development of a Software Package for Defining Aerodynamic Resistance Distribution in Complex Mine Ventilation Networks…………………...130 CHAPTER 5 MODELING OF AIR FLOW DISTRIBUTION Air Flow Distribution………………………………………………………………… ...
... N., KUZMANOVIĆ D., “Research into possibility of optimizing air distribution in mine ventilation networks“, XIX SYM-OP-IS , Zbornik radova str. 325-328, Beograd, (1992). 47. LILIĆ N., KUZMANOVIĆ D., “Optimization of air distribution in mine ventilation networks“, Yugoslav Journal of Operations Research ...
... ventilacije rudnika 8 Kako koristiti elektronsku knjigu? Sadržaj knjige UML notacija Index About the book Partially Regulated Distribution Regulated Air Distribution Methods for Ventilation Network Solving……………………………………………….154 Hardy-Cross Method Application of Genetic Algorithms in Mine Ventilation ...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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The analysis of the geothermal energy capacity for power generation in Serbia
Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk (2013)... of silicate minerals in igneous rocks with the highest proportion of silica in the continental crust. Alkali feldspar and quartz also have large distribution; the two groups of minerals and plagioclases are tectosilicates [10]. Silicon occurs in elevated concentrations in geothermal water as well, for ...Jana Stojković, Goran Marinković, Petar Papić, Mihailo Milivojević, Maja Todorović, Marina Ćuk. "The analysis of the geothermal energy capacity for power generation in Serbia" in Thermal Science, National Library of Serbia (2013). https://doi.org/10.2298/TSCI120215033S
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A Mathematical Learning Environment Based on Serbian Language Resources
In recent years, in line with ever growing usage of Information technology, the learning environments are changing. The amount of available learning materials in various forms has increased. These new environments demand comprehensive learning systems, which enable management of the learning corpus with special attention paid to relevant lexical resources. In this paper we present the concept of a Mathematical Learning Environment in Serbian (MLES), which is based on a corpus of mathematical materials and various lexical resources, enabling ...... the search results are presented. Annotation also alleviates the statistical analysis of the corpus, namely automatic assignment of the distribution of annotated linguistic properties. 5. APPLICATION TERMI The Termi application has recently been launched to serve as a support for the d ...Radojičić Marija, Obradović Ivan, Stanković Ranka, Utvić Miloć, Kaplar Sebastijan. "A Mathematical Learning Environment Based on Serbian Language Resources" in Proceedings of the 7th International Scientific Conference Technics and Informatics in Education, Faculty of Technical Sciences, Čačak (2018)
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Fuzzy optimization in hydrodynamic analysis of groundwater control systems: Case study of the pumping station “Bezdan 1”, Serbia
Dragoljub Bajić, Dušan Polomčić (2014)A groundwater control system was designed to lower the water table and allow the pumping sta-tion “Bezdan 1” to be built. Based on a hydrodynamic analysis that suggested three alternative solutions, mul-ticriteria optimization was applied to select the best alternative. The fuzzy analytic hierarchy process methodwas used, based on triangular fuzzy numbers. An assessment of the various factors that influenced the selec-tion of the best alternative, as well as fuzzy optimization calculations, yielded the “weights” of the alternativesand the ...groundwater lowering, groundwater management scenario, fuzzy analytic hierarchy process,expert knowledge, triangular fuzzy numbers, linguistic variables... of the analyzed alternatives. For each alternative, the characteristics of the groundwater control system: the number of wells and their spatial distribution, and the time need- ed to achieve maximal lowering of the water table below the excavation for the “Bezdan 1” PS, were defined as follows: • A ...Dragoljub Bajić, Dušan Polomčić. "Fuzzy optimization in hydrodynamic analysis of groundwater control systems: Case study of the pumping station “Bezdan 1”, Serbia" in Geološki anali Balkanskoga poluostrva, Belgrade : University of Belgrade - Faculty of mining and geology (2014). https://doi.org/10.2298/GABP1475103B
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Srbija u OneGeology Europe
Геолошки завод Србије као носилац Пројекта ОneGeologyEurope заједно са Рударско геолошким факултетом и Министарством за природне ресурсе, рударство и просторно планирање су се укључили у међународни Пројекат OneGeology Europe у мају 2013. године у већ поодмаклој фази израде Пројекта. До краја 2013. године испунили су завршене активности које треба да доведу до пуноправног укључења у Пројекат чиме је Република Србија нашла своје место на Геолошкој карти Европе 1:1М. Геолошка карта Србије 1:1М представља компилациону односно поједностављену верзију ОГК 1:500 ...... national geological units in a homogeneous way: lithology, age, genesis, tectonic structures. Faults were selected based on two criteria: regional distribution and tectonic significance. This paper presents the map made especially for One Geology Plus Europe Project. Figure 4, presents the level of ...
... national geological units in a homogeneous way: lithology, age, genesis, tectonic structures. Faults were selected based on two criteria: regional distribution and tectonic significance. This paper presents the map made especially for One Geology Plus Europe Project. Figure 4, presents the level of the ...Danka Blagojević, Ranka Stanković, Petar Stejić, Velizar Nikolić. "Srbija u OneGeology Europe" in Zapisnici Srpskog geološkog društva za 2013. godinu, Beograd : Srpsko geološko društvo (2014)
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Tеслапедиа као централна база библиографских података о Николи Тесли
Циљ овог рада је да прикаже идеју и процес израде најкомплетније електронске библиографске базе о Николи Тесли, симболично назване Теслапедиа. Oвaквa бaзa би укључивaлa Teслину библиoгрaфиjу, кao и библиoгрaфиjу других o њeму. Сaм кoнцeпт рaзвoja Teслaпeдиe je видљив крoз двe глaвнe идeje. Првa идeja je зaснoвaнa нa пoстaвљaњу свих пoстojeћих библиoгрaфских јединица кoje Mузej пoсeдуje нa oдрeђeну вeб-лoкaциjу a другa, пoдjeднaкo вaжнa, oглeдa сe у мoгућнoстимa дaљeг рaзвoja и нaдгрaдњe сaмe структурe базе придруживaњeм нoвих библиoгрaфских пoдaтaкa. Oвa бaзa ...... Kržaк, Informacijsкa tehnologija, arhivistiкa i historiografi ja, (Zagreb: Historijsкi zborniк, 1997), 215.; Fritz Machlup, The production and distribution of knowledge in the United States, (Princeton: Princeton University Press, 1962). до при не су но вом раз во ју и ста ту су ар хи ва, као не- ...
... Miroslav. Informacijsкa tehnologija, arhivistiкa i historiografi ja. Zagreb: Historijsкi zborniк, 1997. 4. Machlup, Fritz. The production and distribution of кnowledge in the United States. Princeton: Princeton University Press, 1962. 5. Rudinska, Iwona. “Introduction“. The Tesla collection. ht ...Ивана Ћирић, Сузана Топаловић, Биљана Лазић. "Tеслапедиа као централна база библиографских података о Николи Тесли" in Читалиште (2013)
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A Tool for Enhanced Search of Multilingual Digital Libraries of E-journals
This paper outlines the main features of Bibliša, a tool that offers various possibilities of enhancing queries submitted to large collections of TMX documents generated from aligned parallel articles residing in multilingual digital libraries of e-journals. The queries initiated by a simple or multiword keyword, in Serbian or English, can be expanded by Bibliša, both semantically and morphologically, using different supporting monolingual and multilingual resources, such as wordnets and electronic dictionaries. The tool operates within a complex system composed ...... category of unstructured and semi-structured collections of data. This term generally refers to heterogeneous (different in format, standard and size, etc.) data, of a potentially variable structure, the content of which can grow exponentially. Manipulation of such data, which in general encompass ...Ranka Stanković, Cvetana Krstev, Ivan Obradović, Aleksandra Trtovac, Miloš Utvić. "A Tool for Enhanced Search of Multilingual Digital Libraries of E-journals" in Proceedings of the 8th International Conference on Language Resources and Evaluation, LREC 2012, May 2012, Istanbul, Turkey, Istanbul, Turkey : European Language Resources Association (2012)
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Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)
Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović. "Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)" in Challenges : Sustainable Land Management – Climate Change, Advances in Geoecology 43, Catena Verlag GMBH (2014)