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Упит dcterms_creator_txt:Ђурица Н. Никшић

759 items

  • Concepts for Improving Machine Learning Based Landslide Assessment

    Miloš Marjanović, Mileva Samardžić Petrović, Biljana Abolmasov, Uroš Đurić (2019)
    Katastar klizišta, Podložnost, Hazard, Mašinsko učenje, Uzorkovanje, Validacija

  • A Tel Platform Blending Academic And Entrepreneurial Knowledge

    Ivan Obradović, Ranka Stanković, Jelena Prodanović, Olivera Kitanović (2013)
    ... to the benefit of future and current university students, as well as university graduates working in enterprises. LITERATURE [1] Longworth, N. (2013). Lifelong learning in action: Transforming education in the 21st century. Routledge. [2] Rhoads, R. A., Berdan, J., & Toven‐Lindsey, B. ...
    ... Education: Unmasking Power and Raising Questions about the Movement's Democratic Potential. Educational Theory, 63(1), 87-110. [3] Bissell, A. N. (2009). Permission granted: open licensing for educational resources. Open Learning, 24(1), 97-106. [4] Goodyear, P., & Retalis, S. (Eds.) (2010) ...

  • Дефинисање археолошких објеката на локалитету Кремените њиве применом Ојлерове 3Д деконволуције на магнетометријске податке

    Весна Цветков, Илија Васиљевић, Бранислав Сретеновић, Весна Дамњановић (2018)
    ... koja povezuje polje  (magnetno  ili  gravitaciono) i njegove gradijente po pravcima (x, y  i z) sa pozicijom izvora uz pomoć stepena homoge‐ niteta (N). Stepen homogeniteta predstavlja meru opadanja intenziteta magnetskog polja sa rastojanjem  od  uzročnika  anomalija.  Za  jednostavne modele  se  tumači  ...
    ... links the field  (magnetic or gravitational) and  its gradients along the  directions (x, y and z) with the source position by the degree of homogeneity (N). The degree of homo‐ geneity is the measure of the decrease of the intensity of the magnetic field with the distance from the  source of the anomaly ...

  • Improvement of geodatabase queries within GeolISS

    Ranka Stanković (2008)
    ... in the geodatabase) is defined, as well as header text (to be displayed in query construction), field type with coded values for string ‘C’, number ‘N,I’, date ‘D’, and domain ‘X’, with the domain name given separately. Ranka Stanković 69 Figure 3. The form for maintenance of query parameters ...
    ... au/twiki/bin/view/CGIModel/GeoSciML http://www.isotc211.org/ http://www.esri.com/ Ranka Stanković 74 [6] Blagojević B.,Trivić B., Stanković R. Banjac N., (2008) “Short note about implementation of Geologic information system of Serbia” u časopisu Zapisnici Srpskog geološkog društva, Srpsko geološko ...

  • Mogućnost korišćenјa toplotnih pumpi sa otpadnom toplotom iz postrojenјa za prečišćavanјe otpadnih voda kao toplotnim izvorom

    Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Boban Pavlović (2021)
    U narednom periodu se planira izgradnja nekoliko desetina sistema za prečišćavanje otpadnih voda u većim gradovima u Srbiji. Iskustva iz postrojenja koja su trenutno u radu, pokazuju da bi prečišćena otpadna voda, s obzirom na protok i temperaturu, mogla da predstavlja značajan izvor obnovljive energije. U radu su prikazani primeri dobre prakse korišćenja ove energije u sistemima daljinskog grejanja u zemljama Evropske unije. Analiziran je rad postrojenja za prečišćavanje otpadnih voda u Šapcu i razmotrena je mogućnost njegovog korišćenja ...
    toplotna pumpa, sistem daljinskog grejanja, postrojenje za prečišćavanje otpadnih voda
    ... hlađenje prostora u postojećim zgradama. 0 10 20 30 40 50 60 0 500 1000 1500 2000 2500 3000 3500 h e a t lo a d f o r D H g ri d i n M W hours per year Slika 3. Kriva godišnjeg opterećenja SDG u Šapcu [11] Kriva opterećenja u sistemu daljinskog grejanja je prikazana na ...
    ... s.pdf https://doi.org/10.1016/j.egypro.2018.08.211 energija, ekonomija, ekologija, 2021, god. XXIII, br. 1 15 [11] Doczekal, C., Rajaković, N., Batas Bjelić, I., Jerotić, S. Heating/cooling demand and technical concept for district heating/cooling in Šabac, In H2020: Market uptake of small ...

  • Industrija 4.0 - koncept prediktivnog održavanja 4.0 (PdM 4.0) u rudarstvu

    Predrag Jovančić, Vesna Damnjanović, Dragan Ignjatović, Miloš Tanasijević, Stevan Đenadić (2019)
    Četvrtu industrijsku revoluciju – Industriju 4.0 karakteriše upotreba cyber-fizičkih sistema. Da bi se postigla optimalna strategija održavanja (ali i eksploatacije), neophodno je razviti sisteme koji podržavaju napredne inteligentne sisteme održavanja ili tehnologije pametnog održavanja. Iz toga su proizašli postulati Prediktivnog održavanja 4.0 (PdM 4.0) koji definišu veoma blisku budućnost u oblasti održavanja tehničkih sistema pa i rudarske opreme. PdM 4.0 uključuje iskorišćenje snage veštačke inteligencije za stvaranje stalnog uvida u otkrivanje uzroka i anomalija u radu opreme, koje se ...
    rudarstvo, prediktivno održavanje PdM 4.0, Industrija 4.0

  • Legal framework for recultivation of degraded areas caused by mining exploitation

    Radmila Gaćina (2023)
    Prilikom površinske i podzemne eksploatacije uglja eksploatacioni sistemi oštećuju veće ili manje površine zemljišta. Iskustva pokazuju da su oštećenja zemljišta znatno veća kod površinske eksploatacije, gde je prostora degradiran ne samo u konturi rudnika i okoline, već se promene takođe dešavaju u prirodnom okruženju. U članku su predstavljeni rezultati studije zakonskih okvira rekultivacije u nekim zemljama sveta i u Srbiji. Praktično iskustvo rekultivacije pokazalo je da iskorišćenje i devastacija tokom rudarske aktivnosti predstavljaju opasnost ne samo za pogođena ...
    rekultivacija, melioracija, otkopavanje uglja, zakonska regulativa
    ... Justice and Land Use Conflict: The Governance of Mineral and Gas Resource Development. J. Energy Nat. Resour. Law, 36, pp. 364— 369. LISTIYANI N, SAID MY, KHALID A. (2023) Strengthening Reclamation Obligation through Mining Law Reform: Indonesian Experience. Resources. 2023; 12(5):56. https://doi ...
    ... P.; BELACEK, B. (2003) Quarry Revitalization Through Form of Symbolic Landscape; Isd: Krakow, Poland, p. 45 IGNATYEVA, M., YURAK V., PUSTOKHINA N. (2020) "Recultivation of Post- Mining Disturbed Land: Review of Content and Comparative Law and Feasibility Study" Resources 9, no. 6: 73. https://doi ...

  • Data from the Digital Repository of the Faculty of Mining and Geology in eScience (eNauka)

    Biljana Rujević, Mihailo Škorić (2024)
    The paper describes linking the Digital Repository of the University of Belgrade, Faculty of Mining and Geology, with the eScience system in terms of transferring metadata about the results of researchers' scientific work. The steps taken to ensure a smooth harvesting of metadata are outlined. Additionally, a presentation of additional improvements to the OAI system is provided, aiming to contribute to the automatic linking of authors with their results in the eScience system.
    репозиторијуми, еНаука, метаподаци, Рударско-геолошки факултет

  • Основе конструисања

    Бобан Анђелковић, Милош Танасијевић, Филип Милетић (2023)
    Машинске конструкције

  • Preliminary regional landslide susceptibility assessment using limited data

    Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska (2019)
    In this paper a heuristic approach for preliminary regional landslide susceptibility assessment using limited amount of data is presented. It is called arbitrary polynomial method and takes into account 5 landslide conditioning parameters: lithology, slope inclination, average annual rainfall, land use and maximum expected seismic intensity. According to the method, in the first stage, a gradation is performed for each of the carefully selected conditioning parameters by assigning so called rating points to the grid cells on which the ...
    klizišta, podložnost
    ... BLUM, P.,DA SILVA, P. F., ANDERSEN, P., PILZ, J., R. CHALOV, S., MALET, J.P., JEMEC AUFLIČ, M., ANDRES, N., POYIADJI, E., LA- MAS, P.C., ZHANG, W., PESHEVSKI, I., G. PÉTURSSON, H., KURT, T., DOBREV, N., GARCÍA-DAVALILLO, J.C., HALKIA, M., FERRI, S., GA- PRINDASHVILI, G., ENGSTRÖM, J. & KEELLINGS, D. (2016): ...
    ... regression methods in the case of More and Romsdal (Norway).– Landslides, 7, 55–68. doi: 10.1007/s10346-009- 0188-x ERCANOGLU, M., KASMER, O. & TEMIZ, N. (2008): Adaptation and comparison of expert opinion to analytical hierarchy process for landslide susceptibility map- ping.– Bulletin of Engineering ...
    ... Slovenia at scale 1: 250,000.– Geologija, 49/2, 295–309. doi: 10.5474/geologija.2006.022 LAGOMARSINO, D., SEGONI, S., FANTI, R., CATANI, F. & CASAGLI, N. (2014): Regional Scale Landslide Susceptibility Mapping in Emilia Romagna (It- aly) as a Tool for Early Warning.– In: SASSA K., CANUTI, P. & YIN, Y ...

  • 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: ...
    nanocrystal, curcumin, top-down method, wetball milling

  • ‘Blue-’ and ‘Brown-speckled’ pottery from Qalhât, the Sultanate of Oman (13–16th centuries): Comparison with traditional Omani 19–20 century productions

    Liliana Gianni, Hélène Renel, Aleksandar Kremenović, Philippe Colomban (2020)
    Representative ‘Blue speckled’ (13–16th centuries) and ‘Brown speckled’ (13–21st century) wares recovered from the excavations in Qalhât or collected around Bahlâ city (Sultanate of Oman) were characterized by XRPD, SEM-EDS, Raman/optical microspectroscopy, and thermal expansion. Minerals present in the body (quartz, augite and albite as major phases, calcite, dolomite, rutile, anatase, phosphate, hematite and magnetite as minor phases) were identified by XRPD and/or Raman spectroscopy. SEM-EDXS microanalysis was performed on the glazes in order to compare their composition, especially ...
    Firing, Glaze, Traditional ceramics, Provenance studies, Augite

  • Granatski amfiboliti Bistrice

    Jovana Opančina (2024)
    Predmet ispitivanja ovog završnog rada su granatski amfiboliti Bistrice. Izvršena su petrografska i hemijska ispitivanja s ciljem da se odredi stepen metamorfizma, protolit ispitivanih stena i P-T uslovi nastanka. Ispitivani granatski amfiboliti geografski pripadaju Prijepolju, tačnije nalaze se na ulasku u Prijepolje, mesto Bistrica. Geološka građa obuhvata uglavnom mezozojske tvorevine među kojima se nalaze sedimentne, magmatske i metamorfne stene. Geološki procesi koji su doveli do stvaranja amfibolita su procesi subdukcije i obdukcije koji su se pretpostavljamo dešavali na većim ...
    granatski amfiboliti, Bistrica, elektronska mikrosonda, polarizacioni mikroskop

  • Оптимална конструкција бушотине на експлоатационом пољу Мајдан

    Бранислав Миловановић (2024)
    Одређивање параметара конструкције бушотине представља најважнији корак ка сигурном и ефикасном опремању сваке бушотине. У овом раду биће предложен поступак за одређивање оптималних параметара експлоатационог поља Мајдан. Пример експлоатационог поља Мајдан ће бити коришћен за илустрацију предложеног поступка. Ово поље има специфичне геолошке и хидрогеолошке карактеристике које ће бити детаљно анализиране у раду. На основу ових анализа, биће предложени оптимални параметри бушотине који ће осигурати сигурно и ефикасно опремање бушотина на овом подручју.
    заштитне цеви, поље Мајдан, конструкција бушотине
    ... Koyune peuu: aaumumne ue6u, no:be MajOan, koHcmpykuuja 0yuiomuHe Canp:xaj 84107 AAAAAA AAAAAA 1 2. KAPAKTEPHMCHKE HAOTHOT ITIOJbA „MAJJIAH“..aa n 2 3. BAAIITHMTHE IIEBMIM........na dn aaaaaaaaaaaeiaoaatatatt 7 3.1 Kogcrpyknuja OyITOTHHE alyna a a aanaaaaaaaeeaaaaaaaaaaaatatok 7 3.2 TeoMerpuja ...
    ... aKcHJaJIHOr onrepehema: IIoohy naTax je)iHauHHa MO)Ke Ce OJIipe/uiTH aKCHJaJIHO Hanpe3abbe y ČKCHJIOaTAHHOHOJ KOJIOHH Koje H3Hocu F= 18 000,36 [N]. Vs kopunriheme curenehaix BpeHocTH: • /lyxuHa eKcrmioarTanHoHc KomoHe: H= 2381 [m] • TesxuHa ceKnuje y Ba3jlyXy,Ca CHOJHHIHIIOM: W= 7,56 [daN/m] ...
    ... yHyTPpaHbH H CHOJPaHIMbH IIpHTHCaK KOpHrTyjy 34 KOMOHHOBaHa OMakcujamHa omrepehema, H TO ripeMa curenehHM JenHauHHaMa: 2 a | - ops(C) -os("S).y n 2 a= | R-orsG"0 +os("0| y ban 69 TA = Ž [daN/mm?] (6.10) Inecy: Dgb- MBHHHMAaJIHa OTIHOPpHOCT Ha CIHOJPaHitbHIpHTHCaK (rH-CucHbeC) 3alTHTHHX ...

  • Low-temperature phase transition and magnetic properties of K3YbSi2O7

    Predrag Dabić, Volker Kahlenberg, Biljana Krüger, Marko Rodić, Sabina Kovač, Jovan Blanuša, Zvonko Jagličić, Ljiljana Karanović, Václav Petříček, Aleksandar Kremenović (2021)
    alkalni silikati elemenata retkih zemalja, fazni prelazi, magnetne karakteristike, razdvajanje kristalnog polja, silikati lantanica
    ... form typical for paramagnetic behaviour, which is commonly described by Curie–Weiss law: � ¼ N�2 B� 2 eff 3kðT � �Þ ¼ C T � � : ð1Þ Expression (1) contains quantities with their usual abbrevia- tions: N (Avogadro number), �B (Bohr magneton), �eff (effective magnetic moment), k (Boltzmann constant) ...
    ... which is commonly described by Curie-Weiss law: x= Nutr _ C 3kK(T —0) T-@O (1) Expression (1) contains quantities with their usual abbrevia- tions: N (Avogadro number), 4g (Bohr magneton), Mer (effective magnetic moment), k (Boltzmann constant), C (Curie constant), JT (temperature in K) and 6 (Curie—Weiss ...
    ... x~'(7) below 10 K corresponds to the population of the ground doublet exclusively. In such case, expression (2) is reduced to: ,(@i=0,1,2and3), (2) _ N gi haM ctr k(T —0) © (3) Fitting this equation to the x_'(7) data between 2 K and 10 K allows the determination of Moe and the Curie-Weiss temperature ...

  • Application of machine learning for diagnosing the operation of a deep well pump in oil production

    Maja Trikić (2024)
    This paper will thoroughly examine how machine learning can improve the diagnosis of deep well pumps by analyzing the role and function of the pumps, dynamograms, sensor technologies, and diagnostic methods.Our analysis will provide insights into modern techniques and approaches for enhancing the performance and reliability of oil production systems, targeting cost reduction and increased operational efficiency.
    deep well pump, dynamograms, machine learning, diagnostics of operating coditions,Random Forest, XGBoost
    ... y0), (x1, y1), (x2, y2), ..., GN-1, yN-1), each ordered pair can be treated as a complex number: s(k) = x(k) + jy(k) O) where k=0,1,2,...,N-1, and N represents the number of points on the contour. In this approach, the x-axis is treated as the real axis, while the y-axis is used as the imaginary ...
    ... Fourier transform (DET), it is possible to compute the Fourier descriptors of the contour using equation (11). a(k) = y1 z(k)e y- (11) je n = 0,1,2.....N - 1 and a(k) are the Fourier coefficients of the contour. To make the descriptors invariant to rotation, the magnitude |a(R)|is used. However ...
    ... downhole pump operation. 12 b o ' Li L “ [] LJ ? LI vromoe (%5e0C}) Figure 3.1 time functions of load and stroke of the smooth rod Š·o i E PR N a a m e .'! ” L A_'A––––Ev @llšsss·zlll B dı | | | oO e % 2 «0 bl · tod glatko Sipko S(cm) Figure 3.2 Dynamograms of downhole pump operation: ...

  • Digital Library From A Domain Of Criminalistics As A Foundation For A Forensic Text Analysis

    Dalibor Vorkapić, Aleksandra Tomašević, Miljana Mladenović, Ranka Stanković, Nikola Vulović (2017)
    U ovom radu predstavljen je model koji omogućava prikupljanje, pripremu, opis metapodataka, upravljanje i eksploataciju, uključujući pretragu punog teksta dokumenata iz domena kriminalistike napisanih na srpskom jeziku. Predloženi pristup primenjuje se na veb portalu koji sakuplja različite tekstove nastale iz časopisa Akademije za kriminalistiku i policijske studije, Krivičnog zakona Srbije, konferencija „Tara“ i „Reiss“, kao i iz nekih doktorskih disertacija vezanih za ovu oblast istraživanje. Nakon obrade teksta, korpus koji sadrži preko 5500 stranica običnog teksta, kreiran je i ...
    Omeka, Wordnet, pretraga punog teksta, morfološka i semantička pretraga teksta, proširenje upita
    ... following expression: <N+Hum> is an example of morphological and semantic expression search in Unitex system. This query is retrieving any inflective form of lemma napad (attack), preceded by an adjective () and followed by preposition and noun (<N>) that is human (depicted by the ...
    ... extraction. Implementation details of Omeka, including add-in customisation, integration with Vebran, LeXimir and Unitex is discussed and presented n few examples. Having in mind that the metadata are a core for the development of digital libraries, that explains, locates, or otherwise makes it easier ...

  • Building learning capacity by blending different sources of knowledge

    Ivan Obradović, Ranka Stanković, Olivera Kitanović, Dalibor Vorkapić (2016)
    ... Metadata/IMS Learning Resource Metadata?, CETIS standards briefings series, http://zope.cetis.ac.uk/lib/media/WhatIsLOMscreen.pdf. Bissell, A. N. (2009). Permission granted: open licensing for educational resources. Open Learning, 24(1), 97-106. Breslow L., Pritchard D. E., DeBoer J., Stump ...
    ... Media. Goodyear, P., & Retalis, S. (Eds.) (2010). Technology-Enhanced Learning, Design Patterns and Pattern Languages. Sense Publishers. Friesen, N. (2004) Technical Evaluation Report, 40. The International Learning Object Metadata Survey, CanCore Initiative. http://www.irrodl.org/index.php/i ...
    ... lifelong learning, entrepreneurship, internationalization and integration. Educational research for policy and practice, 7(2), 73-83. Longworth, N. (2013). Lifelong learning in action: Transforming education in the 21st century. Routledge. Meyer, M. (2003), Academic entrepreneurs or entrepreneurial ...

  • Navigacija budućnosti: poslovni rizici i prilike u rudarskoj industriji

    Petar Marković, Dejan Stevanović, Mirjana Banković, Vuk Lazić (2024)
    Sektor rudarstva i metalurgije se globalno suočava sa brzo evoluirajućim okruženjem u 2024. godini, koje karakteriše jedinstvena međusobna zavisnost rizika i prilika. Sektor je u središtu globalne energetske tranzicije, uz rastuću potražnju za kritičnim mineralnim sirovinama poput litijuma, nikla i bakra, koji su od suštinskog značaja za tehnologije obnovljive energije i električna vozila. Međutim, ova sve veća odgovornost donosi brojne izazove, uključujući pojačanu pažnju na ekološke, društvene i upravljačke (ESG) faktore, fizičke i tranzicione rizike uzrokovane klimatskim promenama, i ...

  • LRMI markup of OER content within the BAEKTEL project

    Ranka Stanković, Daniela Carlucci, Olivera Kitanović, Nikola Vulović, Bojan Zlatić (2015)
    ... 2012. [4] IEEE Learning Technology Standards Committee (LTSC), 1484.12.1-2002 IEEE Standard for Learning Object Metadata, 2002. [5] Friesen, N., Technical Evaluation Report, 40. The International Learning Object Metadata Survey, CanCore Initiative, 2004. http://www.irrodl.org/index.php ...
    ... between academia and enterprises Proceedings of IFKAD, Matera, Italy, pp. 788-801, 2014. [7] Carlucci, D., Kitanović, O., Rajlić, I., Vulović, N., Jevremović, Z., A platform for management of academic and entrepreneurial knowledge, In Proceedings of IFKAD, Bari, Italy, 2014. [8] Stanković ...