Главна колекција / Main Collection: Recent submissions
Now showing items 41-60 of 269
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Comparative performance analysis of some accelerated and hybrid accelerated gradient models
We analyze a performance profile of several accelerated and hybrid accelerated methods. All comparative methods are at least linearly convergent and have satisfied numerical characteristics regarding tested metrics: number ... -
Hybridization of accelerated gradient descent method
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 ... -
Elemental concentrations and soil-to-moss transfer factors of radionuclides in the environment of North Kosovo and Metohija
This paper deals with investigations of elemental concentrations and soil-to-moss transfer factors of radionuclides in area of municipalities Kosovska Mitrovica and Zubin Potok. Twelve samples of soil and moss Hypnum ... -
System Maintenance Decision Making Based on Repair Rate Statistics
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 ... -
A GIS-based method for analysis of a better utilization of thermal-mineral springs in the municipality of Kursumlija (Serbia)
(Elsevier, 2018-09-02)There are about 240 geothermal occurrences with 60 commercial spas included in, which are spread throughout the territory of Serbia. The majority of springs and other surface manifestations are located along the south-eastern ... -
Green synthesis of L-Methionine capped silver and gold nanoparticles
(Society of Physical Chemists of Serbia, 2018-09-28)In this work, we present a simple green method for Ag and Au nanoparticles (NPs) synthesis in an aqueous medium. Ag and Au NPs were synthesized by chemical reduction method, using amino acid L-Methionine as reducing as ... -
Synthesis and characterization of quercetin-conjugated gold nanoparticles
(Society of Physical Chemists of Serbia, 2018-09-28)Gold nanoparticles and quercetin-conjugated gold nanoparticles complex were synthesized using trisodium citrate as reducing agent. Both kinds of nanoparticles were characterized using spectrophotometry, dynamic light ... -
Interaction between gold nanoparticles and selected antitumor gold complexes
(Society of Physical Chemists of Serbia, 2018-09-28)The paper presents the results of study of interaction between citrate capped gold nanoparticles (AuNPs) and some antitumor gold complexes with pyridine ligands (AubipyC, AubipyOH and AupyOAc), in order to elucidate the ... -
Adsorpcija boje indocijanin zeleno na površini nanocestica srebra i zlata
(Српско хемијско друштво, 2022-06-19)U poslednje vreme intenzivno se ispituju nanočestice metala za primenu u medicini kao nosači lekova i drugih biološki važnih molekula, koji bi poboljšali stabilnost leka i terapeutsku efikasnost. U ovom radu je ispitana ... -
Power Flow in Graded-Index Plastic Optical Fibers
(IEEE, 2019-07-03)A method is proposed for predicting the evolution of the power distribution along graded-index plastic optical fibers. This method is verified against our recently reported measurements. The strong influence of mode coupling ... -
Enhanced bandwidth of W type plastic optical fibers designed from singly clad step index plastic optical fibers
(Elsevier, 2018-11-02)We propose a multimode W type (doubly clad) plastic optical fiber which takes the characteristic W-shaped index profile designed from a multimode singly clad step index plastic optical fiber upon modification of the cladding ... -
Influence of mode coupling on three, four and five spatially multiplexed channels in multimode step-index plastic optical fibers
(Elsevier, 2018-04-04)We investigate the influence of mode coupling on space division multiplexing capability of three multimode step-index plastic optical fibers with different strengths of mode coupling. Results show that mode coupling ... -
Theoretical investigation of the capacity of space division multiplexing with step-index air-clad silica optical fibers
(MDPI, 2022-02-23)We studied the effect of mode coupling on the space division multiplexing (SDM) capabilities of multimode step-index (SI) air-clad silica optical fibers by numerically solving the power flow equation. Mode coupling ... -
Theoretical investigation of bandwidth of multimode step-index silica photonic crystal fibers
(MDPI, 2022-03-23)Solving the time-dependent power flow equation (PFE) provides a useful method to study the transmission bandwidth of step-index silica photonic crystal fibers (SI SPCFs). The transmission bandwidth of these kinds of ... -
Power flow in multimode step-index plastic photonic crystal fibers
(Elsevier, 2021-08-21)We investigate the state of mode coupling in a multimode step-index plastic photonic crystal fiber (SI PPCF) with a solid-core by solving the time-independent power flow equation. For various arrangements of air-holes, ... -
Method for investigation of mode coupling in multimode step-index silica photonic crystal fibers
(Elsevier, 2021-07-30)We propose a new method for investigation the state of mode coupling in a multimode step-index silica photonic crystal fiber (SI SPCF) with a solid-core by solving the time-independent power flow equation. For various ... -
A comparative study of two different finite difference methods for solving advection–diffusion reaction equation for modeling exponential traveling wave in heat and mass transfer processes
(Springer, 2021-10-26)An unconditionally-positive finite difference (UPFD) and the standard explicit finite difference schemes are compared to the analytical solution of the advection–diffusion reaction equation which describes the exponential ... -
Wavelength dependent transmission in W-type plastic optical fibers with graded index core distribution
(Elsevier, 2021-08-08)This paper investigates the wavelength dependence of the equilibrium mode distribution (EMD) and steady state distribution (SSD) in W-type plastic optical fibers (POFs) with graded index (GI) core distribution for ... -
An Overview of Novel Methods for ASEP Performance Evaluation Based on Q-Function Approximation
(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 ... -
Wavelength dependence of equilibrium mode distribution and steady state distribution in W-type plastic-clad silica fibers
(Elsevier, 2019-11-27)Wavelength dependence of equilibrium mode distribution (EMD) and steady state distribution (SSD) in W-type plastic-clad silica fibers (PCSFs) is investigated in this paper for parametrically varied width of the fiber’s ...