A simplified method for characterization of standard library cells based on the linear delay model is presented in this paper. The linear model is chosen as it allows rapid characterization with a modest number of simulations, while achieving acceptable accuracy. All the parameters of cell delays are defined as 50%-to-50% delays, as distinguished from 50%-to-threshold or threshold-to-50% often ...

We investigate the effects of heterogeneous delays in the coupling of two excitable neural systems. Depending upon the coupling strengths and the time delays in the mutual and self-coupling, the compound system exhibits different types of synchronized oscillations of variable period. We analyze this synchronization based on the interplay of the different time delays and support the numerical re...

introduction: this study was conducted with aim of investigating the relationship between religious orientation and self-esteem of students. methods: the present research was of a correlational study. the research population consisted of all students (boys and girls) studying at islamic azad university, payam noor and applied science universities in darehshahr city in the academic year of 2013-...

The Cloud computing technology has been widely applied in e-business, e-education. Cloud computing platform is a set of Scalable large-scale data server clusters, it provides computing and storage services to customers. The cloud storage is a relatively basic and widely applied service which can provide users with stable, massive data storage space. Our research shows that the architecture of c...

The quality of teachers has influence on the quality of educational services. Nurturing theteachers is actually a preoccupation for the educational organizations. The aim of our educationsystem is to produce successful, well-prepared citizens; therefore, careful examination ofindividuals who teach at all levels is a critical step in meeting that goal. The current studyin...

Multiple-band and spectrally distinctive photodetection play critical roles in building next-generation colorful imaging, spectroscopy, artificial vision, optically controlled logic circuits of the future. Unfortunately, it remains challenging for conventional semiconductor photodetectors to distinguish different spectrum bands with photon energy above bandgap material. Herein, first time, a ph...