H-rotor Vertical Axis Wind Turbine (VAWT) is one of the most efficient energy suppliers which have been investigated in many recent types of research. The aim of this work is to study the aerodynamic performance of a doubled-row H-Darrieus VAWT. First, an ordinary three-bladed VAWT with NACA4415 profile is simulated by means of 3D computational fluid dynamics (CFD) and results are compared to a...

Welcome to the 2002 International Conference on Information Systems. Our theme is " Meeting the Challenges of a Global Net-worked Economy " and we believe it addresses the pressing issues facing society, and our profession in particular, as 2002 comes to an end. We live in a completely interconnected world; economic and political decisions in one end of the world spread like wildfire and affect...

A supply-chain is a series of connected stock management structures. Therefore, the structure of a supply-chain consists of many cascading inventory management problems. It is known that the optimal inventory control parameter values suggested by the literature are also valid for a supply-chain. The motivation for this study is to investigate the effect of the literature suggested optimal value...

vernonia galamensis cass is a huge potential industrial crop with very high content of vernolic acid in the seed oil. the experiment was carried out to determine the effect of inter- and intra- row spacing on the yield and yield related traits of vernonia galamensis cas.the experiment was conducted for two years during 2014-2015 on experimental field of wondo genet agricultural research center,...

Tagged Colorado potato beetles (CPB), Leptinotarsa decemlineata (Say), were released on potato plants, Solanum tuberosum L., and tracked using a portable harmonic radar system to determine the impact of host plant spatial distribution on the tendency of the pest to remain on the colonized host plant or patch. Results confirmed the long residency time on the host plant and showed that close conn...

in order to study the sowing system, row distance and weeding effect on yield and yield components of intercropped maize with peanut, this experiment was conducted, as factorial based on a rcbd with three replications at the research farm of agriculture center of zabol university (iran) during growing season 2011- 2012. sowing system were four levels including sole maize, sole peanut, 50% maize...