Yayın tarihi için Makale Koleksiyonu listeleme
Toplam kayıt 91, listelenen: 1-20
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A cost-effective method for ultrasound volumetric imaging
(1996)A synthetic receive aperture technique is explored for cost-effective ultrasound scanners with high frame rates and beam density. The technique provides ultrasound volumetric imaging where beam count is very large with 2-D ... -
Segmentation of ultrasonic images using fuzzy sets
(1996)An image segmentation technique based on fuzzy sets for ultrasonic B-scans is presented. The fuzzy c-means algorithm is adapted to B-scan images. The classes constituting a region are obtained through fuzzy partitioning ... -
A fuzzy colour quantizer for renderers
(Elsevier Science Bv, 1998)This paper presents a new colour quantization method for ray tracing. Normally, quantization is carried out by generating statistics about the colours present in the original image. Then a colour look-up table is created ... -
Improving performance of switched reluctance motor by fuzzy logic controller
(John Wiley & Sons Ltd, 1999)This paper presents torque ripple minimization of a switched reluctance motor (SRM) by using a fuzzy controller, The nonlinear model of the SRM and the mathematical model of the converter circuit are driven. The motor used ... -
A piezoelectric motor using two orthogonal bending modes of a hollow cylinder
(Ieee-Inst Electrical Electronics Engineers Inc, 2002)This paper proposes a compact ultrasonic motor with low manufacturing costs, a simpler driving circuit, and scalability. The stator of the motor presented in this paper consists of a hollow metal cylinder, whose outside ... -
Tek bölgeli güç sistemlerinde bulanık mantık ile yük frekans kontrolü
(2002)Bu makalede, güç sistemlerindeki yük frekans kontrol problemine bir bulanık mantık kontrolör uygulanmıştır. Bu amaçla bir Pl kontrolörün bulanık mantıkla kazancı ayarlanmıştır. Çalışma tek bölgeli bir güç sisteminde ... -
An adaptive observer for Lorenz chaotic system
(2003)An adaptive observer design technique proposed for nonlinear systems have been successfully applied to the Lorenz system, which produces chaotic oscillations. This observer does not use any feedback directly. The feedback ... -
A full adaptive observer for DC servo motors
(2003)An adaptive observer estimating all parameters and load torque is proposed for DC servo motors. The observer uses no direct feedback but the adaptation schemes use current and speed measurements. Both the observer and ... -
An adaptive observer for cryptosystems based on the Lorenz chaotic oscillator
(2003)Doğrusal olmayan sistemler için önerilmiş bir adaptif gözleyici tasarım tekniği, kripto sistemlerinde kullanılan Lorenz kaotik sistemine başarıyla uygulanmıştır. Bu gözleyici doğrudan doğruya geribesleme kullanmaz; ... -
Design of a circular piezoelectric transformer with crescent-shaped input electrodes
(Inst Pure Applied Physics, 2003)In this study, a new disk-type piezoelectric transformer design is proposed. The input side of the transformer has a crescent-shaped electrode and the output side has a focused poling direction. The electrodes and poling ... -
Lorenz kaotik sistemi için adaptif bir gözleyici
(2003)Doğrusal olmayan sistemler için önerilmiş bir adaptif gözleyici tasarım yöntemi, kaotik salınımlar üreten Lorenz sistemi üzerinde başarı ile uygulanmıştır. Geribesleme bu gözleyici tarafından doğrudan kullanılmayıp sadece ... -
New natural observer applied to speed-sensorless DC servo and induction motors
(Ieee-Inst Electrical Electronics Engineers Inc, 2004)A simple observer design technique with parameter adaptation is proposed for bounded-input bounded-output nonlinear systems. In this technique, no feedback is used in the observer but parameter estimations are considered ... -
A multiobject tracking framework for interactive multimedia applications
(Ieee-Inst Electrical Electronics Engineers Inc, 2004)Automatic initialization and tracking of multiple people and their body parts is one of the first steps in designing interactive multimedia applications. The key problems in this context are robust detection and tracking ... -
Detection of defects in a cantilever beam using modal test data
(2004)Bu çalışmanın amacı çatlaklı kirişlerde hasar yeri ve derinliği hakkında bilgi edinmektir. Bu amaçla kirişte darbe vuruşu sonucu oluşan titreşimler incelenmiştir. Hasarlı ve hasarsız kirişlerden elde edilen sinyal hem zaman ... -
Load-frequency control in two area power system
(2004)Bu makalede, bölge yük-frekans kontrolü için bir bulanık mantık uygulaması araştırılmıştır. Kontrolör, iki bölgeli enterkonnekte güç sistemi için dizayn edilmiştir. Kontrolörde bulunan integral ve oransal kazanç katsayıları ... -
Load frequency control in two area power systems using fuzzy logic controller
(Pergamon-Elsevier Science Ltd, 2005)This paper presents a fuzzy application to the area of load-frequency control (LFC) using fuzzy gain scheduling of PI controllers. The study has been designed for a two area interconnected power system. Using variable ... -
A classification mechanism for determining average wind speed and power in several regions of Turkey using artificial neural networks
(Pergamon-Elsevier Science Ltd, 2005)In this paper, average wind speed and wind power values are estimated using artificial neural networks (ANNs) in seven regions of Turkey. To start with, a network has been set up, and trained with the data set obtained ... -
A fuzzy gain scheduling PI controller application for an interconnected electrical power system
(Elsevier Science Sa, 2005)In this study, a fuzzy gain scheduled proportional and integral (FGPI) controller was developed to regulate and to improve the frequency deviation in a two-area electrical interconnected power system. Also, a conventional ... -
An analysis of cracked beam structure using impact echo method
(Elsevier Sci Ltd, 2005)Defects influence in a negative way the service life of structures. Thus, detection of them even at a very small size is a very important point of view to guarantee structural safety and to safe costs. The objective of ...