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Full-Text Articles in Entire DC Network
A Realization Of Sc-Cnn-Based Circuit Using Ftfn, Eni̇s Günay, Esma Uzunhi̇sarcikli, Recai̇ Kiliç, Mustafa Alçi
A Realization Of Sc-Cnn-Based Circuit Using Ftfn, Eni̇s Günay, Esma Uzunhi̇sarcikli, Recai̇ Kiliç, Mustafa Alçi
Turkish Journal of Electrical Engineering and Computer Sciences
In this paper, a realization of the State Controlled Cellular Neural Network (SC-CNN)-based circuit using Four Terminal Floating Nullor (FTFN) as active element is presented. In this realization, a new version of autonomous Chua's circuit has been considered using FTFN realization of SC-CNN-based circuit. The performance of the proposed SC-CNN-based circuit is demonstrated by PSpice simulations.
Prior Knowledge Input Method In Device Modeling, Serdar Heki̇mhan, Serdar Menekay, N. Serap Şengör
Prior Knowledge Input Method In Device Modeling, Serdar Heki̇mhan, Serdar Menekay, N. Serap Şengör
Turkish Journal of Electrical Engineering and Computer Sciences
The artificial neural networks are being used in modelling electronic elements and devices especially at microwave frequencies where non-linearity and dependence on frequency cannot be neglected. In this paper, instead of using artificial neural networks as a unique modelling device prior knowledge input method based on feed-forward artificial neural network structures as multi-layer perceptrons and wavelet-based neural networks is investigated. The benefits of prior knowledge input method over plain usage of artificial neural networks in modelling BJT is explored by comparing models obtained with and without prior knowledge input. The novelty of the paper is utilizing wavelet-based neural networks as …
Transformer Protection Using The Wavelet Transform, Okan Özgönenel, Güven Önbi̇lgi̇n, Çağri Kocaman
Transformer Protection Using The Wavelet Transform, Okan Özgönenel, Güven Önbi̇lgi̇n, Çağri Kocaman
Turkish Journal of Electrical Engineering and Computer Sciences
This paper introduces a novel approach for power transformer protection algorithm. Power system signals such as current and voltage have traditionally been analysed by the Fast Fourier Transform. This paper aims to prove that the Wavelet Transform is a reliable and computationally efficient tool for distinguishing between the inrush currents and fault currents. The simulated results presented clearly show that the proposed technique for power transformer protection facilitates the accurate discrimination between magnetizing inrush and fault currents in transformer protection.
Multilayer Capacitor Model Of The Earth's Upper Crust, Berk Üstündağ, Özcan Kalenderli̇, Haluk Eyi̇doğan
Multilayer Capacitor Model Of The Earth's Upper Crust, Berk Üstündağ, Özcan Kalenderli̇, Haluk Eyi̇doğan
Turkish Journal of Electrical Engineering and Computer Sciences
In this study, an equivalent electric circuit model of Earth's upper crust is proposed to explain the behavior of measurement patterns acquired from network of the earthquake forecast project. A multi-layer capacitor model having active components that couples with the monopolar probe close to the surface is used to determine earthquake precursory patterns due to structural changes in time. Equivalent circuit model was developed for a) dilatency process that is assumed to be a stress weakening reason and b) external force source that increases shear stress over the fault until sudden decrement before the earthquake. A data acquisition system consisting …
A Robustness Analysis Procedure For Realistic Missiles, Reşat Özgür Doruk, Erol Kocaoğlan
A Robustness Analysis Procedure For Realistic Missiles, Reşat Özgür Doruk, Erol Kocaoğlan
Turkish Journal of Electrical Engineering and Computer Sciences
This paper presents a robustness analysis procedure for short range realistic missile autopilots. The sensitivity of the autopilots to the aerodynamic parameter uncertainties is investigated through the structured singular value theory where the results are verified through nonlinear simulations. Different types of perturbations are implemented in order to measure the complete performance of the missile.
Implementation Of A New Self-Tuning Fuzzy Pid Controller On Plc, Onur Karasakal, Engi̇n Yeşi̇l, Müjde Güzelkaya, İbrahi̇m Eksi̇n
Implementation Of A New Self-Tuning Fuzzy Pid Controller On Plc, Onur Karasakal, Engi̇n Yeşi̇l, Müjde Güzelkaya, İbrahi̇m Eksi̇n
Turkish Journal of Electrical Engineering and Computer Sciences
In this study, the self-tuning method for fuzzy PID controllers that has been developed in a previous study of the authors is implemented on PLC in order to control some standard processes formed on FEEDBACK PCS 327 Process Control Simulator. In this tuning method, the input scaling factor corresponding to the derivative coefficient and the output scaling factor corresponding to the integral coefficient of the fuzzy PID controller are adjusted using a fuzzy inference mechanism with a new input called ``normalized acceleration''. The results of the implementation have been compared with those of the classical fuzzy PID controller without a …
A Survey On The H.264/Avc Standard, Nükhet Özbek, Turhan Tunali
A Survey On The H.264/Avc Standard, Nükhet Özbek, Turhan Tunali
Turkish Journal of Electrical Engineering and Computer Sciences
H.264/AVC is a recently completed video compression standard jointly developed by ITU-T VCEG and ISO/IEC MPEG standards committees. The standard is becoming more popular as it promises much higher compression than that possible with earlier standards. The standard provides flexibilities in coding and organization of data which enable efficient error resilience. The increased coding efficiency offers new application areas and business opportunities. As might be expected, the increases in compression efficiency and flexibility come at the expense of increase in complexity, which is a fact that must be overcome. This paper provides an overview of the technical features of H.264 …
Control Charts Approach For Scenario Recognition In Video Sequences, Ersi̇n Elbaşi, Long Zuo, Kishan Mehrotra, Chilukuri Mohan, Pramod Varshney
Control Charts Approach For Scenario Recognition In Video Sequences, Ersi̇n Elbaşi, Long Zuo, Kishan Mehrotra, Chilukuri Mohan, Pramod Varshney
Turkish Journal of Electrical Engineering and Computer Sciences
A new approach, based on control charts, is presented for the task of recognition of events and scenarios in video image sequences. For each image in the sequence, low level image processing and feature extraction steps result in feature descriptors for objects of interest detected in the images. Control charts analysis is then explored to classify the nature of the activity depicted by the temporal changes in these features over the image sequence. Scenario recognition with higher accuracy is achieved using this simple approach.
A Model For User Profiling Systems With Interacting Agents, Sanem Sariel, Tevfi̇k Akgün
A Model For User Profiling Systems With Interacting Agents, Sanem Sariel, Tevfi̇k Akgün
Turkish Journal of Electrical Engineering and Computer Sciences
Service systems according to users' personal demands and preferences are on their way to provide required services in many application domains. Emulation of interactive model of human societies produces valuable outcomes for such systems. In this work, a system model with interactive agents for multi user service systems is proposed. A novel social interactive agent model using different interaction forms is also included in this proposal. In this model, agents decide how to serve to their users by considering their users' profiles and information from other agents. User clusters are formed by clustering techniques. The Q-learning algorithm is used for …
Cover And Contents
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
The Effects Of Cadmium On Levels Of Glucose In Serum And Glycogen Reserves In The Liver And Muscle Tissues Of Cyprinus Carpio (L., 1758), Bedi̇i̇ Ci̇ci̇k, Kenan Engi̇n
The Effects Of Cadmium On Levels Of Glucose In Serum And Glycogen Reserves In The Liver And Muscle Tissues Of Cyprinus Carpio (L., 1758), Bedi̇i̇ Ci̇ci̇k, Kenan Engi̇n
Turkish Journal of Veterinary & Animal Sciences
The common carp (Cyprinus carpio L., 1758) was exposed to sublethal concentrations of cadmium (0.05, 0.1, 0.5 and 1.0 mgl^{-1}) for 10 days. The levels of serum glucose and glycogen reserves in the liver and muscle tissues were measured both in fish exposed and not exposed to Cd. The levels of glycogen reserves in the liver and muscle tissues were significantly (P < 0.05) decreased in fish exposed to sublethal concentrations of Cd compared with the levels measured in the control groups. The decrease in glycogen levels in the liver and muscle tissues under the highest metal concentration (1.0 mgl^{-1}) were 24% and 29%, respectively. The blood serum glucose levels of fish exposed to Cd were significantly (P < 0.05) increased compared with the levels measured in the control groups. This increase was correlated with the increase in water Cd concentrations.
In Vitro Efficacy Of Azithromycin And Roxithromycin Against Toxoplasma Gondii, Mehmet Tanyüksel, Ahmet Levent Baş, Engi̇n Araz, Mustafa Özyurt, Ali̇ Albay, Cahi̇t Babür
In Vitro Efficacy Of Azithromycin And Roxithromycin Against Toxoplasma Gondii, Mehmet Tanyüksel, Ahmet Levent Baş, Engi̇n Araz, Mustafa Özyurt, Ali̇ Albay, Cahi̇t Babür
Turkish Journal of Veterinary & Animal Sciences
Toxoplasmosis is a common problem, accounting for significant morbidity in developing countries. Conventional treatments are associated with frequent relapses and with additional problems including undesirable side effects. Better-tolerated and more effective drugs are clearly needed. The aim of this study is to evaluate the in vitro efficacy of azithromycin and roxithromycin against Toxoplasma gondii using acridine orange in the fluorescence microscopic assay. It was found that azithromycin and roxithromycin had significant microbicidal activity (P < 0.05). In conclusion, this observation should be assessed carefully in future clinical trials involving a large number of cases with toxoplasmosis.
Cover And Contents
Turkish Journal of Veterinary & Animal Sciences
No abstract provided.
Isolation Of Listeria Monocytogenes From Fish Intestines And Rapd Analysis, Hasan Basri̇ Ertaş, Engi̇n Şeker
Isolation Of Listeria Monocytogenes From Fish Intestines And Rapd Analysis, Hasan Basri̇ Ertaş, Engi̇n Şeker
Turkish Journal of Veterinary & Animal Sciences
One hundred and fifty fish caught from Keban Dam Lake were examined for the presence of Listeria monocytogenes. A random amplified polymorphic DNA (RAPD) assay using a random primer was performed to detect genetic variations among L. monocytogenes isolates. The selective enrichment procedure followed by selective isolation was used for listeria isolation from fish intestines. Ten (6.6%) L. monocytogenes were isolated and identified from fish intestines. Two different band profiles were obtained by the RAPD analysis of the isolates. The results indicated that the isolates might have originated from different sources, and fish contaminated with L. monocytogenes may cause serious …
Cover And Contents
Turkish Journal of Veterinary & Animal Sciences
No abstract provided.
Cover And Contents
Turkish Journal of Veterinary & Animal Sciences
No abstract provided.
Investigations On Drift-Net Fishery For Swordfish (Xiphias Gladius L.) In The Aegean Sea, Okan Akyol, Mustafa Erdem, Vahdet Ünal, Tevfi̇k Ceyhan
Investigations On Drift-Net Fishery For Swordfish (Xiphias Gladius L.) In The Aegean Sea, Okan Akyol, Mustafa Erdem, Vahdet Ünal, Tevfi̇k Ceyhan
Turkish Journal of Veterinary & Animal Sciences
This study reports an investigation carried out on swordfish drift-net fishery at 2 main swordfish fishing ports, Sivrice (northern) and Fethiye (southern), in the Aegean Sea in 2001-2002. Forty-five boats are used for swordfish fishing in the Turkish Aegean Sea. In these major areas, the highest number of boats 6-10 m in length and 11.5-80 hp in engine power was in the Sivrice area, while the highest number 10-14 m in length and 85-135 hp in engine power was in the Fethiye area. Almost all of the boats were made of wood. Swordfish drift-netting accurs in practice between Sivrice and …
Cover And Contents
Turkish Journal of Veterinary & Animal Sciences
No abstract provided.