Претрага
529 items
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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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Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal
Sanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović (2018)glukoza, fruktoza, аktivni ugalj, hidrotermalni tretman, aktivacija hidroksida, teški metali, metilen plavo... molecules and KOH reduction to metal K. At the same time, K2CO3 which may also be formed during the activation, may be reduced by carbon to K, K2O, CO, and CO2 what also, as a consequence, may have creating porous Minerals 2018, 8, 246 10 of 21 carbon surface. An additional reason for microstructure destroying ...
... Sing, K.S.W.; Everett, D.H.; Haul, R.A.W.; Moscou, L.; Pierotti, R.A.; Rouquerol, J.; Siemieniewska, T. Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity. Pure Appl. Chem. 1985, 57, 603–619. [CrossRef] 46. International Organization ...
... ICDD: Newtown Square, PA, USA, 2012. 51. Jakas, A.; Horvat, S. Reactivity and oxidative potential of fructose and glucose in enkephalin-sugar model systems. Amino Acids 2008, 34, 329–332. [CrossRef] [PubMed] 52. Ferrari, A.C.; Robertson, J. Interpretation of Raman spectra of disordered and amorphous carbon ...Sanja Krstić, Milan Kragović, Maja Pagnacco, Vladimir Dodevski, Branka Kaluđerović, Miloš Momčilović, Ivica Ristović, Marija Stojmenović . "Hydrothermal Synthesized and Alkaline Activated Carbons Prepared from Glucose and Fructose—Detailed Characterization and Testing in Heavy Metals and Methylene Blue Removal" in Minerals, MDPI (2018)
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Back-arc underplating provided crustal accretion affecting topography and sedimentation in the Adria microplate
Paolo Mancinelli, Vittorio Scisciani, Cristina Pauselli, Gérard M. Stampfli, Fabio Speranza, Ivana Vasiljević (2021)Supported by evidence of deep crustal sources for the observed magnetic anomalies in Central Italy and by outcropping gabbros in the Croatian archipelago, we model the observed gravity and magnetic anomalies in the Central Adriatic Sea and surroundings. We suggest that the major magnetic anomalies in the area are related to a wide underplating and propose that this volume represents the first stage of the back-arc Adria continental breakup in Early Permian times. During the Palaeotethys-Adria collision, underplating has ...Paolo Mancinelli, Vittorio Scisciani, Cristina Pauselli, Gérard M. Stampfli, Fabio Speranza, Ivana Vasiljević. "Back-arc underplating provided crustal accretion affecting topography and sedimentation in the Adria microplate" in Marine and Petroleum Geology, Elsevier Ltd. (2021). https://doi.org/10.1016/j.marpetgeo.2021.105470
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Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics
Agate veins and nodules occur in the Lece Volcanic Complex (Oligocene-Miocene) situated in the south of Serbia and occupying an area of 700 km2. This volcanic complex is composed predominantly of andesites, with sporadic occurrences of andesite-basalts, dacites and latites, and features agate formations that have been very little investigated. This study focuses on five selected agate occurrences within the Lece Volcanic Complex, employing optical microscopy, scanning electron microscopy (SEM), X-ray powder diffraction analysis, inductively coupled plasma mass spectrometry ...Zoran Miladinović, Vladimir Simić, Nenad Nikolić, Nataša Jović Orsini, Milena Rosić. "Agates of the Lece Volcanic Complex (Serbia): Mineralogical and Geochemical Characteristics" in Minerals, MDPI AG (2024). https://doi.org/10.3390/min14050511
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Elektromagnetska sprega sistema litosfera-atmosfera-jonosfera
Aleksandra B. Kolarski (2016-08-25)Radio talasi vrlo niskih frekvencija VLF (eng. Very Low Frequency) frekventnog opsega od 3 do 30 kHz, koji se prostiru talasovodom Zemlja-jonosfera (50 -90 km) su, kao što je poznato, efikasni i nezamenljivi u osmatranju pojava u niskoj jonosferi, sa tla...prostiranje talasa vrlo niskih frekvencija, talasovod Zemlja-jonosfera, globalno električno kolo, atmosfersko električno pražnjenje, kratkotrajne svetlosne pojave... drugim slučajevima mogu se razviti u olujne nepogode velikih razmera, u tzv. konvektivne sisteme srednjih razmera MCS (eng. Mesoscale Convective Systems), čiji radijus tipično iznosi do 100 km, ili čak i više. Terminologija koja je u upotrebi prilikom ispitivanja i osmatranja atmosferskog pražnjenja ...
... (1998). Computer Programs for Assessment of Long-Wavelength Radio Communications, Version 2.0. Technical document 3030, Space and Naval Warfare Systems Center, San Diego CA 92152-5001. Franz, R. C., Nemzek, R. J., Winckler, J. R. (1990). Television image of a large upward electrical discharge ...
... Lyons, W. A., Rutledge, S. A., Meyer, J. D., MacGorman, D. R., Cummer, S. A. (2010). Transient luminous events above two mesoscale convective systems: Storm structure and evolution. NASA Astrophysics Data System (ADS). Lang, T. J., Miller, L. J., Weisman, M., Rutledge, S. A., Barker III, L. J ...Aleksandra B. Kolarski. "Elektromagnetska sprega sistema litosfera-atmosfera-jonosfera" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-08-25)
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Substitution reactions of some novel sterically hindered monofunctional Pd(II) complexes
Reakcije supstitucije monofunkcionalnih kompleksa [(TLtBu)PdCl]+ i [Pd(tpdm)Cl]+, gde je TLtBu = 2,6-bis[(1,3-di-terc-butilimidazolin-2-imino)metil]piridin i tpdm = terpiridindimetan, sa nukleofilima kao što su: tiourea, I−, Br−, NO2−, piridin i dimetil-sulfoksid (DMSO) proučavani su u 0,1 M vodenom rastvoru NaClO4 u prisustvu 10 mM NaCl. Reakcije su sprovedene na tri različite temperature (288, 298 i 308 K) korišćenjem tehnike zaustavljenog protoka na različitim temperaturama. Reakcije supstitucije su praćene pod uslovima pseudo prvog reda sa velikim viškom nukleofila. Dobijeni rezultati pokazuju da kompleks ...... Hofmann, R. van Eldik, Angew. Chem., Int. Ed. 40 (2001) 1680. [9] M.T. Rau, R. van Eldik, in: A. Sigel, H. Sigel (Eds.), Metal Ions in Biological Systems, Marcel Dekker, New York, 1996, p. 339. [10] T.A. Al-Allaf, L.J. Rashan, Boll. Chim. Farmac. 140 (2001) 205. [11] E.J. Gao, F.C. Liu, M.C. Zhu, L. ...Aleksandar Mijatović, Jovana Bogojeski, Biljana Petrović, Živadin D. Bugarčić. "Substitution reactions of some novel sterically hindered monofunctional Pd(II) complexes" in Inorganica Chimica Acta, Elsevier BV (2011). https://doi.org/10.1016/j.ica.2011.11.031
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Управљање отпадом – услови, циљеви и изазови на домаћем тржишту
Дарко Драгићевић (2024)Тема овог завршног рада обухвата анализу система управљања отпадом на домаћем тржишту, са посебним освртом на постојеће изазове и могућности за унапређење. Управљање отпадом је кључна компонента заштите животне средине и одрживог развоја, док у Србији ова област пролази кроз процес трансформације у складу са захтевима Европске уније и међународним стандардима. Овај завршни рад је пружио боље разумевање сложености управљања отпадом у Србији и понудио практична решења која могу помоћи у остваривању одрживог развоја у овој области.... CpeJIHHOM JeCTe OJIp;KHBO ynpaBJbabe orTraJoM. Jlepanunuja o,ipxxHBor pa3Boja He Jaje MHOTO CMepHHia 3a ? ISO 14000:2004 - Environmental management systems 3 3AKOH o ynpaerbatby omna0oM „CnyXx<6eHu a/nacHuk PC”, 6p. 36 on 15. waja 2009, 88 ojn 23. HoBeM6pa 2010, 14 oan 22. be6pyapa 2016, 95 oan 8. ...
... RoBeM0pa 2010, 14 ojr 22. 0eopyapa 2016, 95 oJ 8. neneM0pa 2018 - np. 3aKoH, 35 oJ 29. anpuna 2023. ISO 14000:2004 - Environmental management systems PJIHB, M., MHJIETHP, C., 1998. Ocnogu ynpaa;batba ugpemuM omnaOoM, MHHcruaryT 3a acrirHBaMe MarTepbHjaza, Beorpajn. 10.MJIHR, M., 2002. Cmpameuku ...Дарко Драгићевић. Управљање отпадом – услови, циљеви и изазови на домаћем тржишту, 2024
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Machine Learning and Deep Neural Network-Based Lemmatization and Morphosyntactic Tagging for Serbian
The training of new tagger models for Serbian is primarily motivated by the enhancement of the existing tagset with the grammatical category of a gender. The harmonization of resources that were manually annotated within different projects over a long period of time was an important task, enabled by the development of tools that support partial automation. The supporting tools take into account different taggers and tagsets. This paper focuses on TreeTagger and spaCy taggers, and the annotation schema alignment ...... texts in the database were enumerated. Duplicate sentences were de- tected and labeled in order to exclude them from the train- ing set. 3.3. Systems for Morpho-Syntactic Tagging The first operational tagger and a lemmatization model for Serbian was produced as the parameter file TT11 for TreeTagger ...Ranka Stanković, Branislava Šandrih, Cvetana Krstev, Miloš Utvić, Mihailo Škorić. "Machine Learning and Deep Neural Network-Based Lemmatization and Morphosyntactic Tagging for Serbian" in Proceedings of the 12th Language Resources and Evaluation Conference, May Year: 2020, Marseille, France, European Language Resources Association (2020)
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Extraction of Bilingual Terminology Using Graphs, Dictionaries and GIZA++
Branislava Šandrih, Ranka Stanković (2020)U nauci, industriji i mnogim istraživačkim oblastima, terminologija se brzo razvija. Najčešće, jezik koji je „lingua franca“ za većinu ovih oblasti je engleski. Kao posledica toga, za mnoga polja termini domena su koncipirani na engleskom, a kasnije se prevode na druge jezike. U ovom radu predstavljamo pristup za automatsko izdvajanje dvojezične terminologije za englesko-srpski jezički par koji se oslanja na usaglašeni dvojezični korpus domena, ekstraktor terminologije za ciljni jezik i alat za usklađivanje delova. Ispitujemo performanse metode na domenu ...... Lahbib, W., I. Bounhas and B. Elayeb. “Arabic-English Domain Terminology Extraction from Aligned Corpora”. In On the Move to Meaningful Inter- net Systems (OTM 2014) Conferences, Confederated International Con- ferences : CoopIS, and ODBASE 2014, Amantea, Italy, October 27-31, 2014, Proceedings, Robert ...Branislava Šandrih, Ranka Stanković. "Extraction of Bilingual Terminology Using Graphs, Dictionaries and GIZA++" in Infotheca, Faculty of Philology, University of Belgrade (2020). https://doi.org/10.18485/infotheca.2019.19.2.6
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The influence of Al<sup>3+</sup>ion on porcine pepsin activity<i>in vitro</i>
The in vitro effect of Al3þ ions in the concentration range 1.7·1026M–8.7·1023M on pepsin activity at pH 2, via kinetic parameters and its electrophoretic mobility was evaluated. Kinetic study demonstrated the existence of an activation effect of Al3þ at pH 2 on pepsin molecule. Kinetic analysis with respect to concentrations of haemoglobin showed that Al3þ ions increase the maximal velocity (Vmax) and kcat values rather than apparent affinity for substrate (KS) implying the non-competitive nature of activation which indicated ...... Ward MK. Aluminium intoxication: History of its clinical recognition and management. In: Sigel H, Sigel A, editors. Metal ions in biological systems: Aluminium and its role in biology. New York: Marcel Dekker; 1988. p 217—258. Gupta VB, Anitha S, Hegde ML, Zecca L, Garruto RM, Ravid R, Shankar ...Vesna M. Pavelkić, Kristina R. Gopcević, Danijela Z. Krstić, Marija A. Ilić. "The influence of Al3+ion on porcine pepsin activityin vitro" in Journal of Enzyme Inhibition and Medicinal Chemistry, Informa UK Limited (2008). https://doi.org/10.1080/14756360701841095
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Exhumation history of the Juhor Mts. in central Serbia, the Northern Serbo–Macedonian Subunit
Uros Stojadinovic, Hannah Pomella, Nemanja Krstekanić, Bojan Kostić, Maja Maleš, Nikola Randjelovic, Miloš Radonjić (2024)Northern Serbo–Macedonian Subunit, low-t thermochronology, kinematic analyses, extensional deformationsUros Stojadinovic, Hannah Pomella, Nemanja Krstekanić, Bojan Kostić, Maja Maleš, Nikola Randjelovic, Miloš Radonjić. "Exhumation history of the Juhor Mts. in central Serbia, the Northern Serbo–Macedonian Subunit" in Geologica Carpathica, Jun 2024, Central Library of the Slovak Academy of Sciences (2024). https://doi.org/10.31577/GeolCarp.2024.12
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Production of morphological dictionaries of multi-word units using a multipurpose tool
The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...electronic dictionary, Serbian, morphology, inflection, multi-word units, noun phrases, query expansion... containing all necessary grammatical information (DELAF) can be generated from it. The dictionary of forms is used in NLP tasks. Two corpus processing systems that support work with this dictionary format were developed, Unitex [2] and Nooj [3], both of which are based on the use of finite-state technology ...Ranka Stanković, Ivan Obradović, Cvetana Krstev, Duško Vitas. "Production of morphological dictionaries of multi-word units using a multipurpose tool" in Proceedings of the Computational Linguistics-Applications Conference, October 2011, Jachranka, Poland, Jachranka, Poland : PTI - Polish Information Processing Society (2011)
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Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations
The Vršac Mts. in NE Serbia represent the key area to investigate structural relations between the Northern Serbo-Macedonian Subunit and Supragetic Unit of the Dacia Mega-Unit. The geodynamic events during the Variscan orogeny in the Late Paleozoic colligated the two units and led to their metamorphic differentiation. The Late Cretaceous extension exhumed the medium-grade Serbo-Macedonian metamorphic rocks and structurally juxtaposed them against the low-grade metamorphosed basement of the Supragetic Unit along an E-dipping shear zone, which outcrops in the ...severna srpsko-makedonska subjedinica, supragetikum, kinematska analiza, multifazna ekstenzionalna deformacija... Matenco L., Toljić M., Mandić O., Stojadinović U. & Willingshofer E. 2020: Understanding partitioning of deforma- tion in highly arcuate orogenic systems: Inferences from the evo- lution of the Serbian Carpathians. Global and Planetary Change 195, 103361. https://doi.org/10.1016/j.gloplacha.2020.103361 ...Uroš Stojadinović, Nemanja Krstekanić, Bojan Kostić, Marija Ružić, Aleksa Luković . "Tectonic evolution of the Vršac Mts. (NE Serbia): Inferences from field kinematic and microstructural investigations" in Geologica Carpathica, Central Library of the Slovak Academy of Sciences (2021). https://doi.org/https://doi.org/10.31577/GeolCarp.72.5.3
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Компарација метода XRF i ICP-MS на узорцима угља и продуктима сагоревања
Бранко Костић, Ксенија Ераковић, Дејан Прелевић, Сабина Ковач, Драгана Животић. "Компарација метода XRF i ICP-MS на узорцима угља и продуктима сагоревања" in Записници Српског геолошког друштва (2023)
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Старење бунара у алувијалним срединама различитог степена оксичности
Brankica Majkić (2013-09-27)Старење бунара настаје као последица процеса корозије и колмирања. Процесекорозије могуће је спречити уградњом филтерских конструкција од материјалаотпорних на корозију. Колмирање може да настане без обзира на врсту материјалаод кога се праве бунарске конструкције, а процесом може бити захваћенаприфилтарска зона па и зона саме водоносне средине. Из тог разлога тезa јеусмеренa на процесе који доводе до колмирања бунара и последицe опадањaкапацитета водозахватних објеката. Полазна хипотеза је да бунари стареразличитом брзином у срединама различитог степена оксичности. Хидрохемијскеи микробиолошке карактеристике подземних ...старење бунара, алувијалне издани, степен оксичности средине,колмирање, бунарски талог, локални хидраулички губитак, дозвољене улазнебрзине... ог индекса може бити: I<0 – вода је способна да раствара карбонатна једињења пошто је концентрација раствореног CO2 изнад равнотежне концентрације, I>0 – концентрација CO2 је испод равнотежне концентрације и из воде се може таложити калцијум-карбонат. Овим проблемом бавио се и Ryznar ...
... Мутноћа SMEWW 21 st , метода 2130V Укупни испарљиви остатак на 105 o C SMEWW 21 st , метода 2540V Угљен диоксид SMEWW 21 st , метода 4500-CO2-C Утрошак KMnO4 Приручник (1990), метод R-IV-9a Укупни фосфор SMEWW 21 st , метода 4500-P E Орто-фосфати SMEWW 21 st , метода 4500-P E Амонијум-јон ...
... е (често у литератури коришћен акроним TEAPs) трају док сви доступни електрон-донори и електрон-примаоци не буду искоришћени. Ако концентрација CO2 није лимитирајући фактор, а према енергији која се ослобађа, процеси ће се одвијати према следећој шеми (McMahon and Chapelle 2008, Jurgens et al ...Brankica Majkić. "Старење бунара у алувијалним срединама различитог степена оксичности" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2013-09-27)
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An optimal sixteenth order family of methods for solving nonlinear equations and their basins of attraction
Dejan Ćebić, Nebojša Ralević, Marina Marčeta. "An optimal sixteenth order family of methods for solving nonlinear equations and their basins of attraction" in Mathematical Communications (2020)
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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 ...... Quantitative elemental analysis (oxide) was conducted done using, the ZAF calculation method as implemented in the Iridium Ultra software (IXRF Systems, Austin, TX, USA). The validity of measurements was monitored by applying, the same procedure to “Corning Museum B, C and D” and American “National ...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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Remontni radovi u bušotini sa dubinskom pumpom
Jovana Milošević (2024)Remontni i stimulativni radovi u naftnom inženjerstvu su radovi koji se primenjuju na bušotinama koje su već u proizvodnji ili potencijalno proizvodnim bušotinama, i u zavisnosti od toga imaju različitu svrhu. Remontni radovi predstavljaju sve radove koji su ograničeni na kanal bušotine, dok se stimulativni radovi odnose pribušotinsku zonu.U prvom slučaju remontni i stimulativni radovi kod proizvodnih bušotina služe za otklanjanje problema i povećavanje proizvodnje bušotine. Dok u drugom slučaju, kod potencijalnih bušotina su ovi radovi namenjeni završnim obradama ...... bakerhughes.com/integrated-well-services/integrated-well- abandonment/completion-removal-and-well-preparation/perforating/pumpdown-– perforating-systems/terraconnect-perforating-flow-laboratory/terraperm- propellantenhanced-completion-service 48 Oo0pasau 1 H3JABA O AVTOPCTBY 3ABPII(IHOT PAJIA ...Jovana Milošević . Remontni radovi u bušotini sa dubinskom pumpom, 2024
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Procena poroznosti i litologije na osnovu geofizičkih merenja u severoistočnoj Rumuniji
Manja Grifatong (2024)Geofizička karotažna merenja imaju važnu ulogu u određivanju fizičkih i geoloških svojstava delova Zemljine kore. Cilj ovog rada je da se prikaže procena poroznosti i litoloških karakteristika formacije na osnovu rezultata geofizičkih karotažnih merenja. Na osnovu dostupnih podataka izrađeni su dijagrami promene poroznosti sa dubinom i krosplot dijagrami neutronska poroznost – srednja gustina za dve bušotine koje se nalaze na Moldavskoj platformi, u severoistočnoj Rumuniji. Na osnovu ovih dijagrama određene su zone povećane poroznosti i litologija formacija kroz koje ...... predstavlja prelaz ka formacijama badenske starosti. 31 LITERATURA 1. Anastasiu, N., 2016. Standard source rocks in the Romanian petroleum systems — An overview, Geonomy/Sedimentology. Proc. Rom. Acad., 123-124. 2. Anastasiu, N., Branzila, M., Seghedi, A., Tabšrž, D., 2015. Shale gas potential ...Manja Grifatong. Procena poroznosti i litologije na osnovu geofizičkih merenja u severoistočnoj Rumuniji, 2024