background regarding the increase in the prevalence of cardiovascular disease, efficient factors such as happiness seems vital in reducing hospitalization of cardiovascular patients. the aim of this study was to investigate the relationship between stress coping styles, negative automatic thoughts, life quality and happiness in hospitalized cardiovascular patients in ahvaz, iran. material and m...

A buck-type LED driver together with automatic current sharing and high step-down voltage conversion ratio but without complex control is proposed. The proposed can not only achieve zero switching (ZVS) turn-on by adding one resonant coupled inductor, which resonates parasitic capacitors of active switches, also obtain lower gain better efficiency. In this paper, the operating principles design...

Many electromechanical devices operation is dependent on timing concept. Different constituent parts are programmed to function timestamp. In many home and industrial applications, timer switches form one of the major components. It usually used for such devices. this work, a simple but robust general-purpose universal programmable digital (UPDT) proposed. The UPDT switch software-based with an...

one of the major challenges in mega cities is the degree of the preparedness of organizations, institutions and people in facing with critical conditions and their immediate reaction according to pre-defined instructions. identification of priorities and acting accordingly is an undeniable factor in urban crisis management. the purpose of this research was to identify the priorities of prepared...

Need for high speed internet connectivity has lead to a substantial research in switching systems. Buffered crossbar switches have received a lot of attention from both research and industrial communities due of its flexibility and scalability. Designing a scheduling algorithm for buffered crossbar switches without starvation is a major challenge as of now. In this paper, we proposed a Delay ba...