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Articles 12361 - 12390 of 12675
Full-Text Articles in Physical Sciences and Mathematics
Fgmos-Based Differential Difference Cccii And Its Applications, Ökkeş Gökalp Sökmen, Sezai̇ Alper Teki̇n, Hamdi̇ Ercan, Mustafa Alçi
Fgmos-Based Differential Difference Cccii And Its Applications, Ökkeş Gökalp Sökmen, Sezai̇ Alper Teki̇n, Hamdi̇ Ercan, Mustafa Alçi
Turkish Journal of Electrical Engineering and Computer Sciences
controlled current conveyor (DDCCC) is proposed in this paper. Major advantages of the FGMOS-based DDCCC are low power dissipation and simplicity. The proposed circuit is designed using only 14 MOS transistors. The total power dissipation of the proposed circuit is equal to 7.38 $\mu $W. The other advantage of this circuit is that intrinsic resistance seen at port X of the DDCCC can easily be tuned by a biasing current. The tuning range of the intrinsic resistance is rather wide. Additionally, a current controlled universal filter and tunable positive and negative active resistors are presented as applications of the proposed …
Investigation Of An Object Follower System, Eli̇f Erzan Topçu, Ahmet Demi̇rkesen, İbrahi̇m Yüksel
Investigation Of An Object Follower System, Eli̇f Erzan Topçu, Ahmet Demi̇rkesen, İbrahi̇m Yüksel
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
A New Abc-Based Multiobjective Optimization Algorithm With An Improvement Approach (Ibmo: Improved Bee Colony Algorithm For Multiobjective Optimization), Tahi̇r Sağ, Mehmet Çunkaş
A New Abc-Based Multiobjective Optimization Algorithm With An Improvement Approach (Ibmo: Improved Bee Colony Algorithm For Multiobjective Optimization), Tahi̇r Sağ, Mehmet Çunkaş
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
A New Wideband Electronically Tunable Grounded Resistor Employing Only Three Mos Transistors, Erkan Yuce, Sezai̇ Tokat, Firat Yücel
A New Wideband Electronically Tunable Grounded Resistor Employing Only Three Mos Transistors, Erkan Yuce, Sezai̇ Tokat, Firat Yücel
Turkish Journal of Electrical Engineering and Computer Sciences
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An Adaptive Fuzzy Pi Controlled Bus Quantity Enhancer For Wave Energy Systems, Emre Özkop, Adel Sharaf, İsmai̇l Hakki Altaş
An Adaptive Fuzzy Pi Controlled Bus Quantity Enhancer For Wave Energy Systems, Emre Özkop, Adel Sharaf, İsmai̇l Hakki Altaş
Turkish Journal of Electrical Engineering and Computer Sciences
(AFPIC) for a flexible AC transmission system (FACTS)-based dynamic power filter (DPF) to be used in wave energy conversion systems. The new FACTS device stabilizes the DC-common bus voltage, reduces quality of power troubles, and enhances energy utilization by acting as a bus quantity enhancer (BQE). The design and realization of the proposed FACTS-based DPF and efficient control schemes are fully studied. To validate the efficiency of the proposed BQE FACTS device, a digital simulation model and a laboratory test system are developed in the MATLAB/Simulink/Simpower software environment for comparison. Various experimental test models of the proposed BQE system and …
Content-Based Texture Image Retrieval By Histogram Of Curvelets, Erkan Uslu, Songül Albayrak
Content-Based Texture Image Retrieval By Histogram Of Curvelets, Erkan Uslu, Songül Albayrak
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
Shunt Active Power Filter Control For Compensating Current Power Quality Problems In Three-Phase Three-Wire Systems Based On An Adaptive Notch Filter, Seyed Hossein Tabatabaei, Mehran Moslehi Bajestan, Alireza Jalilian
Shunt Active Power Filter Control For Compensating Current Power Quality Problems In Three-Phase Three-Wire Systems Based On An Adaptive Notch Filter, Seyed Hossein Tabatabaei, Mehran Moslehi Bajestan, Alireza Jalilian
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
Fuzzy Logic Based Voltage Control Scheme For Improvement In Dynamic Response Of The Class D Inverter Based High Frequency Induction Heating System, Booma Nagarajan, Rama Reddy Sathi, Pradeep Vishnuram
Fuzzy Logic Based Voltage Control Scheme For Improvement In Dynamic Response Of The Class D Inverter Based High Frequency Induction Heating System, Booma Nagarajan, Rama Reddy Sathi, Pradeep Vishnuram
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
Impact Of Statcom And Sssc On Synchronous Generator Loe Protection, Amir Ghorbani, Babak Mozafari, Soodabeh Soleymani, Ali Mohammad Ranjbar
Impact Of Statcom And Sssc On Synchronous Generator Loe Protection, Amir Ghorbani, Babak Mozafari, Soodabeh Soleymani, Ali Mohammad Ranjbar
Turkish Journal of Electrical Engineering and Computer Sciences
of synchronous generators. Nowadays, application of an impedance relay with two negative offset operation zones to protect LOE is prevalent; this relay measures the output voltage and current of generator to detect LOE. On the other hand, utilization of flexible AC transmission systems (FACTS) devices in power systems for different applications is soaring; these devices cause changes in voltage and current signals in the utilized power system. Therefore, this paper is dedicated to investigate the amounts of changes in the current and voltage signals measured by the LOE relay when the static synchronous compensator (STATCOM) and static synchronous series compensator …
Design And Manufacture Of Tds Measurement And Control System For Water Purification In Reverse Osmosis By Pid Fuzzy Logic Controller With The Ability To Compensate Effects Of Temperature On Measurement, Seyed Kamaleddin Mousavi Mashhadi, Hamid Yadollahi, Abbas Marvian Mashhad
Design And Manufacture Of Tds Measurement And Control System For Water Purification In Reverse Osmosis By Pid Fuzzy Logic Controller With The Ability To Compensate Effects Of Temperature On Measurement, Seyed Kamaleddin Mousavi Mashhadi, Hamid Yadollahi, Abbas Marvian Mashhad
Turkish Journal of Electrical Engineering and Computer Sciences
of water has significant importance for industry, agriculture, livestock, and health. The system designed and manufactured in this paper measures, displays, and controls the TDS of water by installation on domestic and industrial purification systems. Technology of manufacturing the TDS measurement system is such that it can compensate for the adverse effect of temperature. Calibration of the measurement system will be explained here by discussion of several examinations conducted at the Research Institute of Food Science and Technology of Iran. In order to control TDS, a mathematical model for domestic water purification devices of reverse osmosis (RO) is obtained using …
Relay Sliding Mode Control Based On The Input-Output Model, Şölen Kumbay Yildiz, Hüseyi̇n Demi̇rci̇oğlu
Relay Sliding Mode Control Based On The Input-Output Model, Şölen Kumbay Yildiz, Hüseyi̇n Demi̇rci̇oğlu
Turkish Journal of Electrical Engineering and Computer Sciences
In this study, the relay sliding mode control method based on the input-output model proposed in previous studies is revisited. Sliding conditions under ideal operating conditions are reformulated to fortify the theoretical background. Some additional issues, namely the effects of disturbances and measurement noise on the sliding mode conditions, are addressed and analyzed in detail. Finally, the theoretical results are put to the test by detailed simulation examples.
Short-Term Economic Emission Power Scheduling Of Hydrothermal Systems Using Improved Chaotic Hybrid Differential Evolution, Tahir Nadeem Malik, Salman Zafar, Saaqib Haroon
Short-Term Economic Emission Power Scheduling Of Hydrothermal Systems Using Improved Chaotic Hybrid Differential Evolution, Tahir Nadeem Malik, Salman Zafar, Saaqib Haroon
Turkish Journal of Electrical Engineering and Computer Sciences
utilities to retain their generations within maximum allowable emission levels. Therefore, in present-day power system operations, the minimization of emission pollutants along with the total fuel cost has become an important aspect in short-term generation scheduling of hydrothermal power systems. This paper presents an improved hybrid approach based on the application of chaos theory in a differential evolution (DE) algorithm for the solution of this biobjective constrained optimization problem. In this proposed methodology, self-adjusted parameter setting in DE is obtained by using chaotic sequences. Secondly, a chaotic hybridized local search mechanism is embedded in DE to avoid it from trapping …
Energy Optimization In Wireless Sensor Networks Using A Hybrid K-Means Pso Clustering Algorithm, Basma Solaiman
Energy Optimization In Wireless Sensor Networks Using A Hybrid K-Means Pso Clustering Algorithm, Basma Solaiman
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
Design Of A Low-Power, Low-Cost Uhf Rfid Reader Module, Özgür Bostan, Hüseyi̇n Ulvi̇ Aydoğmuş, Serkan Topaloğlu
Design Of A Low-Power, Low-Cost Uhf Rfid Reader Module, Özgür Bostan, Hüseyi̇n Ulvi̇ Aydoğmuş, Serkan Topaloğlu
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
Stereo And Kinectfusion For Continuous 3d Reconstruction And Visual Odometry, Özgür Yilmaz, Fati̇h Karakuş
Stereo And Kinectfusion For Continuous 3d Reconstruction And Visual Odometry, Özgür Yilmaz, Fati̇h Karakuş
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
Design Of Compact Octagonal Slotted Hexagonal And Rectangular Shaped Monopole Antennas For Dual/Uwb Applications, Praveen Naidu Vummadisetty, Raj Kumar
Design Of Compact Octagonal Slotted Hexagonal And Rectangular Shaped Monopole Antennas For Dual/Uwb Applications, Praveen Naidu Vummadisetty, Raj Kumar
Turkish Journal of Electrical Engineering and Computer Sciences
applications are proposed in this paper. In both antennas, the slot in the ground plane is of octagonal shape, while the patch is rectangular in one of the antennas and hexagonal in the other. Thin metallic stubs of different lengths are added to the ground plane and protrude into the slot. These stubs help to improve the impedance matching over a broader bandwidth. The antennas are very compact in size and designed on low-cost FR4 substrate. The measured impedance bandwidths (S$_{11}
Wind Farm Based On Dfig Entirely Interfaced With 14-Node Distribution Network: Power Control And Voltage Regulation, Babouri Rabah, Aouchenni Ounissa, Aouzellag Djamal, Ghedamsi Kaci
Wind Farm Based On Dfig Entirely Interfaced With 14-Node Distribution Network: Power Control And Voltage Regulation, Babouri Rabah, Aouchenni Ounissa, Aouzellag Djamal, Ghedamsi Kaci
Turkish Journal of Electrical Engineering and Computer Sciences
power quality problems due to the fluctuating nature of the wind and the increasing complexity of the power system. This paper describes a novel approach to voltage and power control of a radial electrical distribution network, using a wind farm. The wind farm consists of seven 75 kW induction generators (DFIG) supplying two AC/DC converters. The feed structure of the DFIG allows operating the system conversion in a wide range of speed variations. That is why it is a recommended solution, due to its capacity to increase the generator power to twice its nominal power; consequently, the system's size and …
A Robust Bayesian Inference-Based Channel Estimation In Power Line Communication Systems Contaminated By Impulsive Noise, Mohammad Asadpour, Behzad Mozaffari Tazehkand, Hadi Seyedarabi
A Robust Bayesian Inference-Based Channel Estimation In Power Line Communication Systems Contaminated By Impulsive Noise, Mohammad Asadpour, Behzad Mozaffari Tazehkand, Hadi Seyedarabi
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
Design And Analysis Of A Magnetically Levitated Axial Flux Bldc Motor For A Ventricular Assist Device (Vad), Ahmet Fenerci̇oğlu
Design And Analysis Of A Magnetically Levitated Axial Flux Bldc Motor For A Ventricular Assist Device (Vad), Ahmet Fenerci̇oğlu
Turkish Journal of Electrical Engineering and Computer Sciences
penetration of magnetic field into blood. Magnetic parameters, axial pull force, and torque of the proposed motor have been analyzed by the 3-dimensional finite elements method (3D-FEM) to confirm the motor design. Solutions are compared with maglev and non-maglev designs.
Authentication Of Uncertain Data Based On K-Means Clustering, Levent Ünver, Taflan İmre Gündem
Authentication Of Uncertain Data Based On K-Means Clustering, Levent Ünver, Taflan İmre Gündem
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
A Location Aware History-Based Approach For Network Selection In Heterogeneous Wireless Networks, Amir Hossein Jafari, Hadi Shahriar Shahhoseini
A Location Aware History-Based Approach For Network Selection In Heterogeneous Wireless Networks, Amir Hossein Jafari, Hadi Shahriar Shahhoseini
Turkish Journal of Electrical Engineering and Computer Sciences
Efficient decision making in vertical handoff and network selection algorithms improves users' quality of service and helps users meet service requirements, anywhere and at any time. Hence, in this paper, a user-centric network selection algorithm is proposed, utilizing the estimated reputation of the available candidate networks based on user location and combined experienced users' utility. User utility is defined based on 1) quality of service, 2) monetary cost, and 3) energy consumption metrics. In the proposed history aware-based user location algorithm, the past experience of users for available networks is considered to estimate the future utility that a user can …
Heart Sound Signal Classification Using Fast Independent Component Analysis, Yücel Koçyi̇ği̇t
Heart Sound Signal Classification Using Fast Independent Component Analysis, Yücel Koçyi̇ği̇t
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
Single And Multiple Precision Sequential Large Multipliers For Field-Programmable Gate Arrays, Ali̇ Şentürk, Mustafa Gök
Single And Multiple Precision Sequential Large Multipliers For Field-Programmable Gate Arrays, Ali̇ Şentürk, Mustafa Gök
Turkish Journal of Electrical Engineering and Computer Sciences
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Sensorless Field Oriented Control Of Nonsinusoidal Flux-Distribution Permanent Magnet Synchronous Motor With A Fem Based Ann Observer, Eyyüp Öksüztepe, Zeki̇ Omaç, Mehmet Polat, Hakan Çeli̇k, Ahmet Hakan Selçuk, Hasan Kürüm
Sensorless Field Oriented Control Of Nonsinusoidal Flux-Distribution Permanent Magnet Synchronous Motor With A Fem Based Ann Observer, Eyyüp Öksüztepe, Zeki̇ Omaç, Mehmet Polat, Hakan Çeli̇k, Ahmet Hakan Selçuk, Hasan Kürüm
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
An Efficient Robust Watermarking Scheme For Varying Sized Blocks, Navneet Yadav, Kulbir Singh
An Efficient Robust Watermarking Scheme For Varying Sized Blocks, Navneet Yadav, Kulbir Singh
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
Iris And Eye Corner Detection By Processing Internal Webcam Images, Bülent Turan, Hali̇l İbrahi̇m Eski̇kurt
Iris And Eye Corner Detection By Processing Internal Webcam Images, Bülent Turan, Hali̇l İbrahi̇m Eski̇kurt
Turkish Journal of Electrical Engineering and Computer Sciences
the eye regions of laptop users. To achieve this, the iris and eye corners are detected by processing the images captured by the standard internal webcam of a laptop. In addition, an artificial neural network (ANN) is used for determining the eye region. Hereby, the iris and eye corners can be detected in the determined eye region. In the study, 107 user images are captured by using a laptop's internal camera under different light intensities, environments, viewpoints, and positions. These images are used for the training of the ANN. Two different methods are used for the iris detection. In the …
Optimal Dispatchable Dg Allocation In A Distribution Network Considering Load Growth With A Mixed-Pso Algorithm, Peyman Karimyan, Behrooz Vahidi, Mehrdad Abedi, Seyed Mohammad Ahadi
Optimal Dispatchable Dg Allocation In A Distribution Network Considering Load Growth With A Mixed-Pso Algorithm, Peyman Karimyan, Behrooz Vahidi, Mehrdad Abedi, Seyed Mohammad Ahadi
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
A Wavelet-Based Feature Set For Recognizing Pulse Repetition Interval Modulation Patterns, Kenan Gençol, Nuray At, Ali̇ Kara
A Wavelet-Based Feature Set For Recognizing Pulse Repetition Interval Modulation Patterns, Kenan Gençol, Nuray At, Ali̇ Kara
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
A New Combined Method For Rms Calculation Based On Wavelet Packet And Hilbert Transform, Rahmat Allah Hooshmand, Javad Modarresi
A New Combined Method For Rms Calculation Based On Wavelet Packet And Hilbert Transform, Rahmat Allah Hooshmand, Javad Modarresi
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
A Novel Approach For Automatic Blood Vessel Extraction In Retinal Images: Complex Ripplet-I Transform And Complex Valued Artificial Neural Network, Murat Ceylan, Hüseyi̇n Yaşar
A Novel Approach For Automatic Blood Vessel Extraction In Retinal Images: Complex Ripplet-I Transform And Complex Valued Artificial Neural Network, Murat Ceylan, Hüseyi̇n Yaşar
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.