The pitch angle control is the most common means for adjusting the aerodynamic torque of the wind turbine when we rate wind speed, controlling various variables could be chosen, as generator power, generator speed and wind. As conventional pitch control customarily use PI controller, the mathematical model of the system should be well known. The controller design by the genetic algorithm is dev...

This paper explores the feasibility of roll–pitch–yaw integrated autopilots for a high angle-of-attack missile. Investigation of the aerodynamic characteristics indicates strong cross-coupling effects between the motions in longitudinal and lateral directions. Robust control techniques based on H1 synthesis are employed to design roll– pitch–yaw integrated autopilots. The performance of the pro...

ABSTRACT Spiral structure is ubiquitous in the Universe, and pitch angle of arms spiral galaxies provide an important observable efforts to discriminate between different mechanisms arm formation evolution. In this paper, we present a hierarchical Bayesian approach galaxy determination, using data obtained through Galaxy Builder citizen science project. We new deal with large variations single ...