This paper presents the design and optimization of a novel wound field synchronous machine topology, in which permanent magnets (PMs) are introduced into the rotor slot opening with segment configuration for high quality output torque performance.The rotor shape of the proposed PM-assisted wound field synchronous machine with segment Cat Raw config
At the end of XIX century futures exchange Horse Feed emerged, in the early 70-ies XX century - option exchange of financial derivatives.These exchanges gave a huge boost to the development of market of the operations with derivative financial instruments.In fact, in the 1970-1980-ies a new market segment was actually formed - the stock and financi
Background and Aim:Regardless of the positive economic effects, the adverse environmental impacts of mines make it necessary to assess environmental impacts.The purpose of this study was to determine the environmental impacts of granite and marble quarries in Khorasan Razavi province.Materials and methods:In this descriptive-analytical study after