A.P. Heydari
[ 1 ] - Gyroscope Random Drift Modeling, using Neural Networks, Fuzzy Neural and Traditional Time- series Methods
In this paper statistical and time series models are used for determining the random drift of a dynamically Tuned Gyroscope (DTG). This drift is compensated with optimal predictive transfer function. Also nonlinear neural-network and fuzzy-neural models are investigated for prediction and compensation of the random drift. Finally the different models are compared together and their advantages a...
[ 2 ] - Prevalence of Sleep Disorder among Medical Students in an Eastern University in Iran
Background: Sleep disorder is mostly an early manifestation of psychological diseases. It is defined as disturbances in the regularity, quality and quantity of sleep as well as daily activity. Methods: In this cross-sectional study, 200 medical students were assessed for sleep status using SHQ and GHQ questionnaires. Data analysis was carried out using descriptive statistics (mean, standard...
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