Mühendislik Fakültesi: Recent submissions

Now showing items 1361-1380 of 2863

Digital current control of a three-phase four-leg voltage source inverter by using p-q-r theory

Özdemir, Ayhan; Özdemir, Zekeriya (INST ENGINEERING TECHNOLOGY-IET, 2014)

In this study, balanced/unbalanced linear/non-linear current control in three-phase four-leg voltage source inverter (VSI) is carried out by using modified p-q-r method instead of the classical p-q-r method, digital ...
Performance improvement of dynamic buffered ATM switch

Köklükaya, Etem (PERGAMON-ELSEVIER SCIENCE LTD, 2005)

Performance of ATM networks depends on switch performance and architecture. This paper presents a simulation study of a new dynamic allocation of input buffer space in ATM switching elements. The switching elements are ...
OCCUPATIONAL EXPOSURE TO ELECTROMAGNETIC FIELDS OF UNINTERRUPTIBLE POWER SUPPLY INDUSTRY WORKERS

Teşneli, Nigar Berna; Teşneli, Ahmet Yahya (OXFORD UNIV PRESS, 2014)

There is an increasing concern that exposure to extremely low-frequency (ELF) electromagnetic fields (EMFs) may cause or contribute to adverse health effects. To assess exposure to ELF EMFs, electric and magnetic field ...
Fully CMOS Memristor Based Chaotic Circuit

Yener, Şuayb Çağrı (SPOLECNOST PRO RADIOELEKTRONICKE INZENYRSTVI, 2014)

This paper demonstrates the design of a fully CMOS chaotic circuit consisting of only DDCC based memristor and inductance simulator. Our design is composed of these active blocks using CMOS 0.18 mu m process technology ...
An event-driven WSN MAC protocol design based on active node and dynamic time slot allocation

Sazak, Nükhet; Köklükaya, Etem; Çakıroğlu, Murat (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2013)

The unique features of wireless sensor networks (WSNs) make them suitable for a wide range of applications in many different areas. However, with many of the protocols and algorithms used in traditional wireless networks, ...
Controlling Rucklidge chaotic system with a single controller using linear feedback and passive control methods

Kocamaz, Uğur Erkin; Uyaroğlu, Yılmaz (SPRINGER, 2014)

In this paper, the control of chaos with a single controller, which provides simplicity in implementation, is investigated in continuous time nonlinear Rucklidge system. For this purpose, a linear feedback controller and ...
Control of Rabinovich chaotic system using sliding mode control

Kocamaz, Uğur Erkin; Uyaroğlu, Yılmaz; Kızmaz, Hakan (WILEY, 2014)

This paper investigates the control of the continuous time Rabinovich chaotic system with the sliding mode control method. Based on the properties of the sliding mode theory, the controllers are designed and added to the ...
Optimization of resistive loading of EMI/EMC near field probe

Köklükaya, Etem (ELSEVIER SCIENCE BV, 2004)

Near field studies must be carried out to insulate printed circuit boards and other circuits entirely from outer space. It can be achieved by utilizing the screen properly. These studies must always be made in the near ...
Controlling Rucklidge chaotic system with a single controller using linear feedback and passive control methods

Uyaroğlu, Yılmaz (2014)
Control of Rabinovich chaotic system using sliding mode control

Kocamaz, Uğur Erkin; Uyaroğlu, Yılmaz; Kızmaz, Hakan (2013)
ENERGY QUALITY ANALYSIS AND IMPROVEMENT FOR FLUORESCENT AND LED LIGHT SOURCES

Erginöz, Banu (2014)
Optimizing reactive power flow of HVDC systems using genetic algorithm

Ayan, Kürşat; Arifoğlu, Uğur (ELSEVIER SCI LTD, 2014)

Due to the usage of high voltage direct current (HVDC) transmission links extensively in recent years, it requires more studies in this issue. Two-terminal HVDC transmission link is one of most important elements in ...
Shielding Effectiveness of Ceramic Bodies Produced with Natural Zeolite

Kanberoğlu, Baha; Demirkıran, Ayşe Şükran (2014)
Detection of Mechanical Imbalances of Induction Motors with Instantaneous Power Signature Analysis

Küçüker, Ahmet; Bayrak, Mehmet (SPRINGER SINGAPORE PTE LTD, 2013)

Mechanical imbalances are common mechanical faults in induction motors. Vibration monitoring techniques have been widely used for the diagnosis of mechanical faults in induction motors, but electrical detection methods ...
Chaos control of single time-scale brushless DC motor with sliding mode control method

Uyaroğlu, Yılmaz; Cevher, Barış (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2013)

In this paper, the sliding mode control (SMC) scheme of single time-scale brushless DC motor (BLDCM) is investigated. The SMC method consists of 2 sections. To simplify the directive of the stability of the controlled ...
Controlling the chaotic discrete-Henon system using a feedforward neural network with an adaptive learning rate

Uyaroğlu, Yılmaz (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2013)

This paper proposes a feedforward neural network-based control scheme to control the chaotic trajectories of a discrete-Henon map in order to stay within an acceptable distance from the stable fixed point. An adaptive ...
An event-driven WSN MAC protocol design based on active node and dynamic time slot allocation

Köklükaya, Etem; Çakıroğlu, Murat (2013)
Controlling the chaotic discrete-H´enon system using a feedforward neural network with an adaptive learning rate

Uyaroğlu, Yılmaz (2013)
Stability Analysis of Nonlinear Oscillations for AC-Fed Electric Arc Furnaces in Context of Bifurcation Dynamics

Varan, Metin; Uyaroğlu, Yılmaz (KAUNAS UNIV TECHNOLOGY, 2013)

Bifurcation theory has been widely used to investigate dynamic behaviours of nonlinear components, and to make analytical answers on the formation of synchronous resonance, chaotic oscillations and ferroresonance oscillation ...
Fast and robust software-based digital phase-locked loop for power electronics applications

Özdemir, Ayhan; Yazıcı, İrfan; Vural, Cabir (INST ENGINEERING TECHNOLOGY-IET, 2013)

In this study, a fast and fully software-based algorithm for digital phase-locked loop (PLL) is proposed via a new hybrid approach in software and hardware by using an advanced digital signal processor architecture. The ...