quantum-dot cellular automaton (qca) is a novel nanotechnology with a very different computational method in compared with cmos, whereas placement of electrons in cells indicates digital information. this nanotechnology with specifications such as fast speed, high parallel processing, small area, low power consumption and higher switching frequency becomes a promising candidate for cmos technol...

flow regime in dam's bottom outlet is divided in pressurized flow and free surface flow by the gate located for discharge control. down stream tunnel involves high velocity multi component air –water flow studied by mathematical model. in this research work, we used finite volume mixture two phase flow model. because of high reynolds number, standard two equations k-e turbulence model was ...

While the previous literature on exclusive dealing has been concerned with the question of how exclusive dealing can raise static profits, this paper analyzes the question of how exclusive dealing can be used to predate in a dynamic context. It is shown that exclusive dealing may arise even if it reduces static profits. Exclusivity provisions may not only allow excluding efficient competitors, ...

background and aims: the world health organization and united nations children’s fund (unicef) recommended executive breastfeeding for 6 months after birth. the purpose of this study was to determine the prevalence of executive breastfeeding in iran by a meta-analysis study to be used by policy-makers in order to health programmer plan in this field. methods: in this meta-analysis study, the da...

background : exclusive nutrition with breastfeeding is the health provider of the infant and mothers and its continuing would provide more advantages. exclusive nutrition on different communities is affected by different factors. this study aimed to determine continuous exclusive breastfeeding and some of the related factors. methods : this was a descriptive-analysis prospective study. the stud...

Since economic liberalization period, Chinese housing typologies have experienced a dramatical change. From the traditional Siheyuan building type to the current gated communities, which prototype has become the most widespread residential housing type in modern China Cities. At the same time, many negative feedbacks about the city life have been appearing, such as traffic congestion, the loss ...