Факултет техничких наука: Recent submissions

Now showing items 21-40 of 131

    • Experimental analysis of wavelet decomposition on edge detection 

      Maksimović, Vladimir; Lekić, Predrag; Petrović, Mile; Jakšić, Branimir; Spalević, Petar (PROCEEDINGS OF THE ESTONIAN ACADEMY OF SCIENCES, 2019)
      The influence of different wavelet transformations and decomposition on edge detection was examined, using convenient operators to images of various complexities. Berkeley Segmentation Database images with the corresponding ...

    • Multivariate and multi-scale generator based on non-parametric stochastic algorithms 

      Marković, Đurica; Ilić, Siniša; Pavlović, Dragutin; Plavšić, Jasna; Ilich, Nesa (Journal of Hydroinformatics, 2019)
      A method for generating combined multivariate time series at multiple locations and at different time scales is presented. The procedure is based on three steps: first, the Monte Carlo method generation of data with ...

    • Poređenje uticaja konstantne i promenljive bitske brzine na broj tv kanala kod Dvb-t2 standarda 

      Stojković, Jelena; Jakšić, Branimir; Petrović, Mile; Spalević, Petar; Prlinčević, Bojan (SINTEZA, 2018)
      U ovom radu je izvršena analiza uticaja modulacionih šema i kodnog količnika na broj TV kanala u jednom UHF kanalu primenom DVB-T2 standarda. Najpre je korišćenjem DVB kalkulatora određena bitska brzina jednog UHF kanala ...

    • EFFECT OF ILLUMINATION IN CHROMA KEY EFFECT IN THE REALIZATION OF VIRTUAL TELEVISION STUDIO 

      Maksimović, Vladimir; Petrović, Mile; Jakšić, Branimir; Ivković, Ratko; Milošević, Ivana (SINTEZA, 2018)
      This paper analyzes the effect of front and back light on the Chroma key effect in a virtual TV studio. The model of the system in which the experiment was realized is given. Different intensity of front and back light ...

    • Image Segmentation By Sobel Edge Detection Algorithm - Mosaic Method 

      Ivković, Ratko; Milošević, Ivana; Petrović, Mile; Spalević, Petar; Panić, Stefan (SINTEZA, 2018)
      Segmentation is one of the latest directions of digital imaging development, presented by partial segments which are parts of the same image. The currently used algorithms are rare and far from ideal. Depending on the ...

    • Sistemi emitovanja i standardi satelitske televizijske transmisije u Evropi 

      Jakšić, Branimir; Maksimović, Vladimir; Todorović, Jelena; Petrović, Mile; Spalević, Petar (Tehnika, 2018-12)
      U ovom radu su razmatrane karakteristike satelitske televizijske transmisije u regionu Evrope. Dat je pregled razvoja satelitske televizije kroz karakteristike: sistemi emitovanja - analogni i digitalni (SDTV, HDTV, UHDTV), ...

    • Economy management with a focus to the productivity 

      Savić, Ljiljana; Radovanović, Vladimir; Mrvaljević, Mirjana (Mining and Metallurgy Engineering Bor, 2018)
      Knowing the essence of productivity and its importance for the economy of the company, but also for the national economy is a prerequisite for successful management in these spheres, as well as the implementation of ...

    • Analysis of swqi index of the river Ibar (Serbia) 

      Elezović, Nataša; Ilić Komatina, Danijela; Dervišević, Irma; Ketin, Sonja; Dasić, Predrag (Fresenius Environmental Bulletin, 2018)
      The characterization of water quality is based on data from five hydrological measuring stations along the Ibar River flow through Serbia for the period from 2007 to 2013.The paper presents a new approach to surface water ...

    • The proof of the Perepechko’s conjecture concerning near-perfect matchings on Cm x Pn cylinders of odd order 

      Doroslovački, Rade; Đokić, Jelena; Pantić, Bojana; Bodroža Pantić, Olga (Applicable Analysis and Discrete Mathematics, 2019-01)
      For all odd values of m, we prove that the sequence of the numbers of near-perfect matchings on Cm x P2n+1 cylinder with a vacancy on the boundary obeys the same recurrence relation as the sequence of the numbers of perfect ...

    • Management of total entrepreneurial activity by adaptive neuro-fuzzy technique 

      Janković, Vučina; Jović, Srđan; Đokić, Jelena (Journal of Production Engineering,, 2018)
      Adaptive neuro fuzzy network or ANFIS could be used for different aspects of prediction during productive development. In this study ANFIS network was appliced for prediction of bending and thickness of shaped surface ...

    • Prediction of visitors' thermal comfort in open urban areas 

      Galjak, Jovana; Đokić, Jelena; Jović, Srđan (Zastita Materijala, 2018-01)
      Thermal sensation of visitors could be important indicator for urban spaces based on physiological, psychological and behavioural conditions of the visitors. Therefore in this article thermal comfort ...

    • The Non-Linear Regression - the Levenberg- Marquardt Algorithm for Assumption the Energy Losses of Hydraulic Transport in a Case of the Mine Trepca 

      Mihajlović, Slavica; Savić, Ljubinko; Radosavljević, Dragana; Savić, Ljiljana; Ignjatović, Miroslav; Blagojev, Marina (Thermal Science, 2019)
      The main problem of hydraulic transport is the resistance generated during the mixture transport through the pipe-line. Testing the flow characteristics of mixtures, shown in this paper, are based on the principles of ...

    • Influence of boundary conditions in DEM models of sublevel caving on dilution and recovery 

      Lapčević, Veljko; Torbica, Slavko; Asadizadeh, Mostafa; Đokić, Nemanja; Duranović, Miodrag; Petrović, Milenko (UNDERGROUND MINING ENGINEERING, 2018-10)
      Discrete element modelling is common approach for analysis of dynamical processes that include granular materials. Method is commonly applied for the modeling of the gravity flow of the broken rock in caving operations. Herein, ...

    • Proposal of 2D finite element model for square pillar stability analysis 

      Đokić, Nemanja; Duranović, Miodrag; Lapčević, Veljko; Torbica, Slavko; Petrović, Milenko; Savić, Ljubinko (UNDERGROUND MINING ENGINEERING, 2018)
      It is suggested that 2D finite element method models are used for square pillar stability analysis. Equivalent width of strip pillar that is represented by FE models is determined from tributary area method by introducing ...

    • Synthesis and Electrochemical Estimation of DNA-Binding Capacity of Novel Ferrocene-Containing Pyrrolidines 

      Pešić, Marko; Bugarinović, Jovana; Minić, Aleksandra; Bogdanović, Goran; Todosijević, Anka; Stevanović, Dragana; Damljanović, Ivan (The Electrochemical Society, 2020-01)
      The design, synthesis, spectral and electrochemical characterization of a series of novel pyrrolidine derivatives have been described. The synthesis was achieved by 1,3-dipolar cycloaddition of azomethine ylides and ...

    • Simulation of chemical accidents with acetylene in 'Messer Tehnogas' Kraljevo plant by 'ALOHA' software program 

      Ilić Komatina, Danijela; Galjak, Jovana; Belošević, Svetlana (The University Thought - Publication in Natural Sciences, 2018)
      Chemical plants are generally associated with potentially high risk of chemical accidents. During chemical accidents hazardous substances jeopardize human lives, destroy material assests and degrade natural environment. ...

    • Novel 4-ferrocenyl-8-(phenylthio)-1,2,3,4-tetrahydroquinoline: Design, synthesis and spectral characterization 

      Minić, Aleksandra; Bugarinović, Jovana; Pešić, Marko; Ilić Komatina, Danijela (The University Thought - Publication in Natural Sciences, 2019)
      Herein, we report design, synthesis and spectral characterization of novel 4-ferrocenyl-8-(phenylthio)-1,2,3,4-tetrahydroquinoline. Desired synthesis was achieved in three reaction steps, with a good overall yield (67%). ...

    • Synthesis of novel multi-functionalized pyrrolidines by [3 + 2] dipolar cycloaddition of azomethine ylides and vinyl ketones 

      Pešić, Marko; Bugarinović, Jovana; Minić, Aleksandra; Ilić Komatina, Danijela; Pejović, Anka; Šmit, Biljana; Stevanović, Dragana; Damljanović, Ivan (Monatshefte fuer Chemie/Chemical Monthly, 2019-02)
      An efficient and easy synthetic route to substituted pyrrolidine derivatives has been established through [3 + 2] dipolar cycloaddition of vinyl ketones and azomethine ylides. The reactions proceed smoothly, under mild ...

    • Synthesis and structural characterizations of novel atropoisomeric ferrocene-containing six-membered cyclic ureas 

      Minić, Aleksandra; Novaković, Slađana; Bogdanović, Goran; Bugarinović, Jovana; Pešić, Marko; Todosijević, Anka; Ilić Komatina, Danijela; dam, Ivan; Stevanović, Dragana (Polyhedron, 2020-02)
      The stereochemical phenomenon that arises from hindered rotation around bonds in nonplanar molecules is termed the atropoisomerism. During our previous work we noted the presence of this kind of isomerism in 1-aryl-4-fer ...

    • Electrochemical characterization and estimation of DNA-binding capacity of a series of novel ferrocene derivatives 

      Pešić, Marko; Bugarinović, Jovana; Minić, Aleksandra; Novaković, Slađana; Bogdanović, Goran; Todosijević, Anka; Stevanović, Dragana; Damljanović, Ivan (Bioelectrochemistry, 2020-04)
      The synthesis of a series of methyl 2-alkyl-5-aryl-4-ferrocenoylpyrrolidine-2-carboxylates has been achieved by [3 + 2] dipolar cycloaddition of azomethine ylides to acryloylferrocene. The electrochemical properties of ...