Voltage fluctuation is one of the important types of power quality aspects originated from heavy fluctuating loads. This phenomenon can influence the behavior of induction motors, produce excessive vibration and increase the ohmic losses. In this paper a simplified model to evaluate the electrical characteristics of three phase induction motors under voltage fluctuation conditions will be prese...

In this paper we examine fluctuation and frequency of the governing equation ofoscillator with odd and even nonlinearities without damping and we present a new efficientmodification of the He’s homotopy perturbation method for this equation. We applied standard andmodified homotopy perturbation method and compare them with the numerical solution (NS), also weapplied He’s Energy balance method (...

abstract different responses of silkworm larvae under various rearing climate condition would help to obtain better economic performance of some silkworm varities in specific climate conditions. the effect of 4 rearing climate conditions including 1) standard 2) high temperature and humidity, 3) high temperature and low humidity and 4) temperature fluctuation were investigated on the performanc...

We argue that a recent discussion of Jetzer and Straumann [Phys. Lett. B 606, 77 (2005)] relating the measured noise spectrum in Josephson junctions to van der Waals forces is incorrect. The measured noise spectrum in Josephson junctions is a consequence of the fluctuation dissipation theorem and the Josephson effect and has nothing to do with van der Waals forces. Consequently, the argument of...

in this article, creative and lateral thinking is used to elaborate certain artwork, which can be seen from all sides, but maintain a unified meaning and value. the significance of this subject leads toward research with emphasis on horizontality and with the aim of protecting and publicizing this concept. this is done through decoding the principles and symbols of islamic arts in order to arri...

gesture and motion recognition are needed for a variety of applications. the use of human hand motions as a natural interface tool has motivated researchers to conduct research in the modeling, analysis and recognition of various hand movements. in particular, human-computer intelligent interaction has been a focus of research in vision-based gesture recognition. in this work, we introduce a 3-...

acquired color deficiency in the tritan axis in parkinson’s disease has already been reported, manifesting itself as impaired performance in various visual tasks. however, its clinical significance has always been controversial. in this study we evaluated the performance of parkinson s disease patients in lanthony 15-desaturated clinical test and for the first time, compared it with the standar...

Recently, we presented a simulation approach to map out the free energy landscape of nucleation. One of the key ingredients of the approach was to choose a proper system volume V so that it satisfies the following two conditions due to Nishioka and Pound: (1) V is large enough so that the system can be regarded as statistically independent of its surroundings. (2) V is small enough that the pro...

this paper presents a theoretical model in which the stock growth rate of durable goods has stochastic fluctuation over time. it concludes that a social planner increases the expected percentage rate of production since uncertainty increases the user cost from consumer’s point view.