Browsing by Author "Kartci, Aslihan"
Now showing items 1-20 of 30
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2DOF multi-objective optimal tuning of disturbance reject fractional order PIDA controllers according to improved consensus oriented random search method
Özbey, Necati; Yeroglu, Celaleddin; Alagoz, Baris Baykant; Herencsár, Norbert; Kartci, Aslihan; Šotner, Roman (Elsevier, 2020-09-30)This study presents a Fractional Order Proportional Integral Derivative Acceleration (FOPIDA) controller design methodology to improve set point and disturbance reject control performance. The proposed controller tuning ... -
Accurate Empirical Fractional-Order Electrical Models of Young and Old Dentines
Herencsár, Norbert; Kartci, Aslihan; Cicekoglu, Oguzhan (IEEE, 2020-07-20)Electrical impedance spectroscopy (EIS) is a fast, non-invasive, and safe technique for bioimpedance measurement. In dental research, EIS has been used to detect tooth cracks and caries with higher accuracy than visual and ... -
An Additional Approach to Model Current Followers and Amplifiers with Electronically Controllable Parameters from Commercially Available ICs
Šotner, Roman; Kartci, Aslihan; Jeřábek, Jan; Herencsár, Norbert; Dostál, Tomáš; Vrba, Kamil (Versita, 2012-11-22)Several behavioral models of current active elements for experimental purposes are introduced in this paper. These models are based on commercially available devices. They are suitable for experimental tests of current- ... -
All-Pass Time Delay Circuit Magnitude Response Optimization Using Fractional-Order Capacitor
Herencsár, Norbert; Kartci, Aslihan; Tlelo-Cuautle, Esteban; Metin, Bilgin; Cicekoglu, Oguzhan (IEEE, 2018-08-05)Paper presents the integer- and fractional-order cases of a voltage-mode all-pass time delay circuit, or more frequently called as all-pass filter, employing a single negative-type current-controlled current inverting ... -
Analog Implementation of Fractional-Order Elements and Their Applications
Kartci, Aslihan (2019-06-24)With advancements in the theory of fractional calculus and also with widespread engineering application of fractional-order systems, analog implementation of fractional-order integrators and differentiators have received ... -
Analog Implementation of Fractional-Order Elements and Their Applications
Kartci, Aslihan (2019-06-24)With advancements in the theory of fractional calculus and also with widespread engineering application of fractional-order systems, analog implementation of fractional-order integrators and differentiators have received ... -
Analogová implementace prvků neceločíselného řádu a jejich aplikace
Kartci, AslihanS pokroky v teorii počtu neceločíselného řádu a také s rozšířením inženýrských aplikací systémů neceločíselného řádu byla značná pozornost věnována analogové implementaci integrátorů a derivátorů neceločíselného řádu. Je ... -
Analogue Implementation of a Fractional-Order PI^{\lambda} Controller for DC Motor Speed Control
Herencsár, Norbert; Kartci, Aslihan; Koton, Jaroslav; Šotner, Roman; Alagoz, Baris Baykant; Yeroglu, Celaleddin (IEEE, 2019-06-12)In this paper, an approach to design a fractional-order integral operator s(lambda) where -1 < lambda <0, using an analogue technique, is presented. The integrator with a constant phase angle -80.1 degree (i.e. order lambda ... -
Analysis and Verification of Identical-Order Mixed Matrix Fractional-Order Capacitor Networks
Kartci, Aslihan; Agambayev, Agamyrat; Herencsár, Norbert; Salama, Khaled Nabil (IEEE, 2018-07-02)In the open literature while capacitors are introduced with -90 degrees phase angle, here we described our fabricated polymer composite, mixed matrix, as a fractional-order capacitor (FoC). The effect on phase and ... -
CMOS-RC Colpitts Oscillator Design Using Floating Fractional-Order Inductance Simulator
Kartci, Aslihan; Herencsár, Norbert; Brančík, Lubomír; Salama, Khaled Nabil (IEEE, 2018-08-05)This paper deals with CMOS fractional-order inductance (FoL) simulator design and its utilization in 2.75th-order Colpitts oscillator providing high frequency of oscillation. The proposed floating FoL is composed of two ... -
Compact MOS-RC Voltage-Mode Fractional-Order Oscillator Design
Kartci, Aslihan; Herencsár, Norbert; Koton, Jaroslav; Psychalinos, Costas (IEEE, 2017-09-04)A new voltage-mode fractional-order oscillator, employing in total 12 Metal-Oxide-Semiconductor (MOS) transistors, is introduced in this paper. The proposed circuit is composed of two operational transconductance amplifiers, ... -
Comparative Study of Discrete Component Realizations of Fractional-Order Capacitor and Inductor Active Emulators
Tsirimokou, Georgia; Kartci, Aslihan; Koton, Jaroslav; Herencsár, Norbert; Psychalinos, Costas (World Scientific, 2018-02-06)Due to the absence of commercially available fractional-order capacitors and inductors, their implementation can be performed using fractional-order differentiators and integrators, respectively, combined with a ... -
Comparative Study of Op-Amp-based Integrators Suitable for Fractional-Order Controller Design
Herencsár, Norbert; Kartci, Aslihan; Yildiz, Hacer A.; Šotner, Roman; Dvořák, Jan; Kubánek, David; Jeřábek, Jan; Koton, Jaroslav (IEEE, 2019-07-01)In this paper, a fractional-order capacitor (FOC) of an order = 0.89 (i.e. constant phase angle –80.1 degree) was emulated via Valsa RC network with five branches. The network component values were optimized using modified ... -
A Comparative Study of Two Fractional-Order Equivalent Electrical Circuits for Modeling the Electrical Impedance of Dental Tissues
Herencsár, Norbert; Freeborn, Todd; Kartci, Aslihan; Cicekoglu, Oguzhan (MDPI, 2020-10-03)Background: Electrical impedance spectroscopy (EIS) is a fast, non-invasive, and safe approach for electrical impedance measurement of biomedical tissues. Applied to dental research, EIS has been used to detect tooth cracks ... -
Current-Mode Multifunctional Filter Utilizing Losses of Inductor Simulator
Kartci, Aslihan (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2016)In this paper, a simple configuration for simulating the inductance using voltage differencing current conveyor (VDCC) as an active element has been presented. The proposed inductance simulator circuit uses only one VDCC, ... -
Electronically Adjustable Emulator of the Fractional-Order Capacitor
Dvořák, Jan; Kubánek, David; Herencsár, Norbert; Kartci, Aslihan; Bertsias, Panagiotis (Kaunas University of Technology, 2019-12-12)This paper presents a design of the controllable emulator of the FOC (Fractional-Order Capacitor) and its application. The circuit is based on 5th-order RC topology (type Foster I) where the passive elements in the topology ... -
Experimental Verification of a Fractional-Order Wien Oscillator Built Using Solid-State Capacitors
Kartci, Aslihan; Agambayev, Agamyrat; Hassan, Ali H.; Bagci, Hakan; Salama, Khaled Nabil (IEEE, 2018-08-05)A new type of fractional-order capacitors (FOCs) is fabricated using a molybdenum disulfide (MoS2)-ferroelectric polymer composite. The phase angle of this FOC’s impedance remains constant between 100 Hz and 10MHz with ... -
Fractional-Order Hartley Oscillator
Agambayev, Agamyrat; Kartci, Aslihan; Hassan, Ali H.; Herencsár, Norbert; Bagci, Hakan; Salama, Khaled Nabil (IEEE, 2018-07-02)A fractional-order capacitor (FOC) is developed using a Molybdenum disulfide ferroelectric polymer composite. The fabricated FOC exhibits constant phase over five decades between 100 Hz-10 MHz, which is the broadest operating ... -
Fractional-Order Oscillator Design Using Unity-Gain Voltage Buffers and OTAs
Kartci, Aslihan; Herencsár, Norbert; Koton, Jaroslav; Brančík, Lubomír; Vrba, Kamil; Tsirimokou, Georgia; Psychalinos, Costas (IEEE, 2017-08-06)In this study, a new voltage-mode fractional-order oscillator using two unity-gain voltage buffers, two operational transconductance amplifiers, one resistor, and two capacitors is presented. The design procedure of ... -
Návrh RC sinusového oscilátoru s aktivními funkčními bloky
Režňák, PatrikBakalárska práca je venovaná RC oscilátorom s použitím funkčných blokov a operačných zosilovačov. Na počiatku je urobený rešerš literatúry zaoberajúcej sa konštrukciou a návrhom RC oscilátorov, a použitiu rôznych funkčných ...