نتایج جستجو برای: transform domain

تعداد نتایج: 509603  

Journal: :Applied and Computational Harmonic Analysis 2016

Journal: :The Journal of The Institute of Image Information and Television Engineers 2011

Journal: :international journal of electrical and electronics engineering 0
ehsan karami amirkabir shahram montaser kouhsari amirkabir seyed mahdi mazhari amirkabir

harmonics have become an important issue in modern power systems. the widespread penetration of non-linear loads to emerging power systems has turned power quality analysis into an important operation issue under both steady state and transient conditions. this paper employs an extended harmonic domain (ehd) based framework for dynamic analysis of long term analysis over voltages during the tra...

2001
Vassilis E. Fotopoulos Stamatis Krommydas Athanassios N. Skodras

Transform domain is the most commonly used space for watermarking applications. Most of the common frequency transforms have been used for this purpose. In this work we investigate the use of the Gabor transform in traditional watermarking schemes. A casting method and detection results are thoroughly examined. It seems that traditional detection thresholds are not applicable in this transform,...

Journal: :مهندسی بیوسیستم ایران 0
محمد صادقی دانشگاه تربیت مدرس احمد بناکار دانشگاه تربیت مدرس عبدالحمید شوشتری موسسه تحقیقات واکسن و سرم سازی رازی

this study represents an intelligence procedure for diagnosis simultaneously avian newcastle disease virus, infection bronchitis virus and influenza using heart sound signal. for this aim, the chickens were divided into four groups. the first group was considered as control samples. the second, third and fourth groups were infected with newcastle disease virus, infection bronchitis and avian in...

A Sur, M Kanoria

In this work, a new mathematical model of thermoelasticity theory has been considered in the context of a new consideration of heat conduction with fractional order theory. A functionally graded isotropic unbounded medium is considered subjected to a periodically varying heat source in the context of space-time non-local generalization of three-phase-lag thermoelastic model and Green-Naghdi mod...

Journal: :international journal of advanced design and manufacturing technology 0
hasan jalali fardin parvizi

identification of damping parameter is usually more complicated and unreliable comparing to mass or stiffness identification in structural dynamics. there are many factors such as intermolecular friction, coulomb friction and viscous damping affecting the damping mechanisms in a structure. therefore it is difficult, and in some cases impossible, to describe the details of damping mechanisms by ...

Journal: :International Journal of Computer Applications 2013

Journal: :International Journal of Advanced Computer Science and Applications 2012

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