Приказано Природно-математички факултет за наслов
Приказ резултата 128-147 од 269
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Infrared wavelength dependence of leaky mode losses and steady state distribution in W-type glass optical fibers
(Elsevier, 2018-03-13)Infrared wavelength dependence of leaky mode losses and steady state distribution (SSD) in W-type glass optical fibers (doubly clad fibers with three layers) is investigated in this paper for parametrically varied ... -
Initial improvement of the hybrid accelerated gradient descent process
(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), ... -
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 ... -
Investigation of bandwidth in multimode graded-index plastic optical fibers
(Optica Publishing Group, 2021-09-13)A new method is proposed for investigating the bandwidth in multimode graded-index plastic optical fibers (GI POFs). By numerically solving the time-dependent power flow equation, bandwidth is reported for a varied launch ... -
Iron Oxide Nanoparticles: Synthesis, Characterization and Application
In this work, we present a review of the simple synthesis of iron(III)-oxide nanoparticles (Fe2O3 NPs), their characterization and potential application as nanosorbents and voltammetric sensors. Fe2O3 NPs were obtained ... -
Irradiation resistance of elastomeric composites based on NR/CSM blend and waste rubber powder
(RAD Centre, Niš, Serbia, 2021-06-14)Effect of waste rubber particles (WTR) size on elastomers based on natural rubber and chlorosulfonated polyethylene rubber (NR/CSM= 50:50) was studied. Two types of WTR with different particle size (150–250 μm and 450–600μm) ... -
Jačina ambijentalnog doznog eкvivalenta i кorelacija sa meteorološкim parametrima u gradu Valjevu i oкolini
Ради процене стања радиоактивности у животној средини, спроведена су мерења јачине амбијенталног дозног еквивалента у ваздуху на територији града Ваљева и околине. Истраживање је спроведено Гајгер-Милеровим бројачем ... -
Knot Bending
In this paper we point out the geometric aspect of knots. By the term knot we mean a closed self-avoiding curve in a 3-dimensional Euclidean space. We consider infinitesimal bending of knots and examine the behavior of ... -
Knot Energy
(Kyung Hee University , RIRCM, OCAMI & BK21PLUS, 2019-07-31)We discuss infinitesimal bending of curves and knots in R3. A brief overview of the results on the infinitesimal bending of curves is outlined. Change of the Willmore energy, as well as of the total curvature, total ... -
KORELACIJA IZMEĐU NAČINA AKTIVIRANJA MONTMORILONITA K10 I SADRŽAJA FORMALDEHIDA U UREA-FORMALDEHIDNIM KOMPOZITIMA
(Faculty of Management Herceg Novi, 2022-05-26)U ovom radu je izvršeno poređenje načina aktiviranja montmorilonita (MMT) K10 sa sadržajem formaldehida (FA) u urea-formaldehidnim (UF) kompozitima. Uzorci MMT-a K10 su aktivirani na dva načina: termički i pomoću sumporne ... -
KVALITATIVNA ANALIZA EFEKATA ELEKTRONSKOG UČENJA NA UNUTRAŠNJU MOTIVACIJU STUDENATA
U nastavi studenata na visokoškolskim ustanovama i studijskim programima elektronsko učenje ima značajnu ulogu. Cilj ovog istraživanja koje je sprovedeno na Alfa BK Univerzitetu u Beogradu je istražiti odnos između ... -
Mathematical Approach for System Repair Rate Analysis Used in Maintenance Decision Making
(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
(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 ... -
MAXIMUM RELIABILITY K-CENTER LOCATION PROBLEM
(Union of Mathematicians of Macedonia - ARMAGANKA, 2020-10-31)This paper presents an approach for solving the maximum reliability k-center location problem. We are modifying the well-known p-center problem in order to determine the location of the observed objects and maximize the ... -
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 mini review of electroanalitical methods for pesticides quantification
This review paper shows the progress made in the last five years in electrochemical methods applied for the purpose of detection and quantification of pesticides - nowadays the most serious pollutants of the environment. ... -
Modeling electrostatic potential in FDSOI MOSFETS: An approach based on homotopy perturbations
(De Gruyter, 2022-01-26)Modeling of the electrostatic potential for fully depleted (FD) silicon-on-insulator (SOI) metal-oxide-semiconductor field effect transistor (MOSFET) is presented in this article. The modeling is based on the analytical ... -
Modeling of power flow in multimode W-type photonic crystal fibers
(МИНИСТЕРСТВО НАУКИ И ВЫСШЕГО ОБРАЗОВАНИЯ РОССИЙСКОЙ ФЕДЕРАЦИИ Некоммерческое акционерное общество «Алматинский университет энергетики и связи имени Гумарбека Даукеева» Федеральное государственное бюджетное образовательное учреждение высшего образования «Казанский государственный энергетический университет», 2023-01-01)In this paper recent advances in application of power flow equation to Wtype photonic crystal fibers (PCF) is presented. As known for many years power flow equation has been proven to be best solution when transmission ... -
MODERN TEACHING TECHNOLOGIES AND DEVELOPING CONSTRUCTIVE THINKING
(4th International Scientific Conference – EMAN 2020 – Economics and Management: How to Cope With Disrupted Times, Online/Virtual, September 3, 2020, SELECTED PAPERS published by: Association of Economists and Managers of the Balkans, Belgrade, Serbia, 2020-09-03)Numerous researches in the previous period have shown the effectiveness of mathematical learning with the use of information and communication technologies (ICT) and mathematical software packages. Also, through theoretical ... -
Morfološka i elektrohemijska karakterizacija nanočestica srebra i gvožđe-oksida namenjenih za elektroanalizu
Nanočestice metala i oksida metala (NPs) privlače pažnju mnogih istraživača zbog svojih jedinstvenih optičkih i električnih svojstva. Ove nanočestice nalaze primenu u biologiji, medicini, kao i u elektronici, za izradu ...