Delay Impulsive Systems: A Framework For Modeling Networked Control Systems by Payam Naghshtabrizi We model Networked Control Systems (NCSs) with variable delay, sampling intervals and packet dropouts as delay impulsive systems which exhibit continuous evolutions described by ODEs and state jumps or impulses that experience delay. We develop theorems for the exponential stability of nonlinear t...

abstract astigmatic soil mite fauna of alfalfa fields of six regions in northwest of east azebaijan (soofian, payam, zenooz, marand, shabestar and jolfa) was studied at three different times of the year 2006 (mid-may, mid-july and mid-september) based on nested design. in this study 12 species, 5 genera and 2 families were identified. in general, shabestar and zenooz showed highest and lowest m...

aim and background: development of human societies sometimes leads in negative consequences such as stress. this research was conducted to assess the effects of religious commitment and self-efficacy in predicting the amount and type of perceived stress in university students. methods and materials: this was a correlational-descriptive study including 200 undergraduate and postgraduate students...

this study has been conducted with the aim of surveying the barriers and challenges of research in universities from the perspective of faculty members (islamic azad and payam-e nour, razi, medical sciences) in kermanshah done. questionnaire being used in this research is barriers and challenges from the perspective of research at universities retrieved from master thesis, it was based on liker...

abstract aim and background: sulloway suggested that birth-order has a significant effect on personality traits, proposing first-borns children are more perfectionistic and more neurotic than later-borns. in abnormal form, perfectionism is closely associated with eating disorders and obsessive compulsive. the purpose of this study was to investigate the effect of birth-order on perfectionism, p...