Today, the power system operation represents a challenge given security and reliability requirements. Mathematical models are used to represent solve operational planning issues related with electric systems. Specifically, AC optimal flow (ACOPF) DC (DCOPF) tools for purposes. The DCOPF versions correspond lineal of ACOPF. This is due fact that solution often hard obtain ACOPF considering all c...

this paper reviews the essence of effective governance and importance of a multi-sectoral approach in generating health systems response to hiv/aids. this comprehensive approach highlights the importance of integrating reproductive sexual health programs and hiv prevention services, including peer education, life skills, and voluntary counseling and testing (vct), for prevention of mother–to-ch...

Heavy vertical traffic conditions appear in high-rise buildings especially during the rush-hour period. So, offered service provided by multi-car elevator systems for such buildings during that period is expected to work fast, efficiently and without long waiting times for users. The approach of our work focuses on reducing the passengers travel and waiting times. To do so Particle Swarm Optimi...

background & aim: nowadays, home health care services play significant roles in modern societies. such services allow the elderly and needy people to pass their treatment process at their own houses in a friendly environment. in this paper, weekly routing and scheduling problem of home health care personnel was investigated. methods & materials: insufficient number of expert personnel or overla...