• Analiza efekata primene GEOGEBRA-e na praćenje nastave geometrije 

      Maksimović, Miroslav; Kontrec, Nataša; Panić, Stefan; Petrović, Milena
      Istraživanja su pokazala da uprkos brojnim prednostima primene savremenih tehnologija u nastavi matematike sam proces uvođenja istih u učionice je spor i dosta složen. Upravo iz tih razloga, ovaj rad istražuje mogućnosti ...
    • Analysis of ecological territorial risk by methods of multidimensional statistics 

      Taseiko, Olga; Milošević, Hranislav; Vujaković, Jelena; Kontrec, Nataša; Panić, Stefan
      В работе рассмотрены водные экосистемы как элементы единой социально природно-техногенной системы, предлагаемой для решения задач управления развитием промышленных территорий. Для оценки территориальных рисков водных ...
    • Average Bit Error Rate Calculation Based on Using Piecewise Spline Approximation 

      Marković, Aleksandar; Perić, Zoran; Panić, Stefan; Spalević, Petar
      In this paper, an approximation of the average bit error rate (ABER) probability expression, standard performance measure of wireless transmission over fading channels using linear spline functions with corresponding number ...
    • Comparison of adaptive algorithms for free space optical transmission in Malaga atmospheric turbulence channel with pointing errors 

      Smilić, Marko; Nikolić, Zorica; Milić, Dejan; Spalević, Petar; Panić, Stefan (2019)
      In this study, the authors investigate average capacity of free space optics communication over Málaga atmospheric turbulence channel with pointing errors and path loss, for intensity modulated/direct detection (IM/DD) and ...
    • Complex homogeneous differential equation of first and second order through iterations 

      Vujaković, Jelena; Kontrec, Nataša; Panić, Stefan
      The theory of complex differential equations represents an important mathematical discipline both from the theoretical point of view and from numerous applications. Its development was equally encouraged by mathematicians, ...
    • Early cherry fruit pathogen disease detection based on data mining prediction 

      Ilić, Miloš; Ilić, Siniša; Jović, Srđan; Panić, Stefan (COMPUTERS AND ELECTRONICS IN AGRICULTURE, 2018-07)
      Today’s world depends largely on information and communication technologies. These technologies are in use in different areas of human life and work. Each day, more examples of possible application of information and ...
    • Efficient Numerical Methods for Analysis of Square Ratio of kappa-mu and eta-mu Random Processes with Their Applications in Telecommunications 

      Milovanović, Gradimir; Suljović, Suad; Panić, Stefan; Kalčo, Ismet; Stefanović, Mihajlo
      We will provide statistical analysis of the square ratio of and random processes and its application in the signal-to-interference ratio (SIR) based performance analysis of wireless transmission subjected to the influence ...
    • Hybridization of accelerated gradient descent method 

      Petrović, Milena; Rakočević, Vladimir; Kontrec, Nataša; Panić, Stefan; Ilić, Dejan
      We present a gradient descent algorithm with a line search procedure for solving unconstrained optimization problems which is defined as a result of applying Picard-Mann hybrid iterative process on accelerated gradient ...
    • 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 ...
    • Initial improvement of the hybrid accelerated gradient descent process 

      Panić, Stefan; Petrović, Milena; Mihajlov Carević, Miroslava (Cambridge University Press, 2018-08-01)
      We improve the convergence properties of the iterative scheme for solving unconstrained optimisation problems introduced in Petrovic et al. [‘Hybridization of accelerated gradient descent method’, Numer. Algorithms (2017), ...
    • Mathematical Approach for System Repair Rate Analysis Used in Maintenance Decision Making 

      Kontrec, Nataša; Panić, Stefan; Panić, Biljana; Marković, Aleksandar; Stošović, Dejan (MDPI, 2021-05-20)
      Reliability, the number of spare parts and repair time have a great impact on system availability. In this paper, we observed a repairable system comprised of several components. The aim was to determine the repair rate ...
    • Mathematical Modeling of Integral Characteristics of Repair Process under Maintenance Contracts 

      Kontrec, Nataša; Vujaković, Jelena; Tošić, Marina; Panić, Stefan; Panić, Biljana (MDPI, 2021-12-08)
      The repair rate is a very important parameter for system maintainability and can be defined as a frequency of successfully performed repair actions on a failed component per unit of time. This paper analyzes the integral ...
    • A Novel Approach for Determination of Reliability of Covering a Node from K Nodes 

      Panić, Biljana; Kontrec, Nataša; Vujošević, Mirko; Panić, Stefan (MDPI, 2020-09-05)
      In this paper, a stochastic problem of multicenter location on a graph was formulated through the modification of the existing p-center problem to determine the location of a given number of facilities, to maximize the ...
    • Novel Composite Approximation for the Gaussian Q-Function 

      Perić, Zoran; Marković, Aleksandar; Kontrec, Nataša; Panić, Stefan; Spalević, Petar (Kaunas University of Technology, 2020-10-27)
      This paper, by using Borjesson’s and Benitez’s approximation of Q-function, presents a novel and improved composite approximation of Q-function with wide applicability. The presented approach is very general and can be ...
    • An Overview of Novel Methods for ASEP Performance Evaluation Based on Q-Function Approximation 

      Marković, Aleksandar; Perić, Zoran; Panić, Stefan (27th Telecommunications forum TELFOR 2019, 2019-11-27)
      The closed-form expression for Q-function does not exist so it is necessary to develop its approximation in order to overcome the difficulties that might appear in diverse research areas. In this paper the authors are ...
    • The second mean value theorem for complex line integral 

      Vujaković, Jelena; Panić, Stefan; Kontrec, Nataša
      In real iterations, several types of mean value theorems for definite integrals are used. In complex domain, we cannot specifically formulate the mean value theorem of a particular complex line integral (L) ∫f(z)dz , since ...
    • SSC Reception over Kappa-Mu Shadowed Fading Channels in the Presence of Multiple Rayleigh Interferers 

      Stevanović, Aco; Panić, Stefan; Spalević, Petar; Prlinčević, Bojan; Savić, Milan (Kaunas University of Technology, 2018-06-22)
      Modelling of complex wireless transmission scenario over fading channels in the presence of multiple co- channel (CCI) interferers will be presented in this paper. Propagation environment will be modelled with general ...
    • A stochastic model for estimation of repair rate for system operating under performance based logistics 

      Kontrec, Nataša; Panić, Stefan; Petrović, Milena; Milošević, Hranislav (Polish Maintanace Society, 2018-09-01)
      Performance Based Logistics (PBL) concept has an aim to improve the system availability and it has been extensively researched in the recent years. These researches showed that inventory level does not impact system ...
    • System Maintenance Decision Making Based on Repair Rate Statistics 

      Kontrec, Nataša; Panić, Stefan; Petrović, Milena
      This paper presents a novel approach for estimation of repair rate in an observed system comprised of two or more components. The presented approach is based on calculation of probability density function of maximal and ...
    • USE OF GEOGEBRA IN THE STUDY OF ROTATIONS 

      Maksimović, Miroslav; Kontrec, Nataša; Panić, Stefan (Western Serbia Academy of Applied Studies, Užice (Serbia), 2021-10-08)
      With the development of information technologies and educational software, there was a need for research and examination of how and in what way to use them in teaching, without losing the quality of existing traditional ...