Despite the impact of entrepreneurships on economic development, it has not received much attention over last few decades. Most studies in field entrepreneurship have been based experiences successful entrepreneurs. Although success and failure entrepreneurs are two sides same coin, studying causes entrepreneurial provides us with more important information for analyzing ecosystem a country. Th...

Determination of the starter torque-speed diagram is a major task in the design or selection of a proper gas turbine starter. In this paper, the maximum power of the MGT-40 gas turbine starter was calculated based on the dynamics of the rotor, start-up logic, and compressor map. In a recent research, the pressure ratio was assumed as a linear function of the rotor speed and the required sta...