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Since collective spin systems store digital information as their magnetization direction, development of nonvolatile memories for computers with the von Neumann architecture is one of the mainstream outlets of spintronics research pursued in the last several decades.
The development of fully superconducting motors using $\text{Re}_{1}\text{Ba}_{2}\text{Cu}_{3}\text{O}_{7-\delta}$ (REBCO, Re: rare earth such as Y, Gd, or Eu) superconducting tapes has begun with the support of the Japan Science and Technology Agency. In this study, as the first step, the optimum arrangement of the rotating field winding for a 20-kW 600-r/min fully superconducting motor was evaluated...
So far, the authors' group have developed a pitching control method for electric vehicle (EV) based on the quick torque response of motors in order to improve the driving comfort. In this paper, a novel estimation method of braking torque is proposed to generate ideal vehicle acceleration for pitching control. The acceleration reference can be obtained from the estimated braking torque, motor torque,...
We have proposed a pitching control method for electric vehicle (EV). The pitching motion influences the ride comfortability of the vehicle severely. This paper proposes the method that control pitching motion ideally by the torque of in-wheel motors when the vehicle is braking. Experiments are carried out with small-scale EV to show the effectiveness of proposed method when the vehicle is braking...
As a brake system for small wind turbine, mechanical brake and electric brake by the short circuit of 3-phase permanent magnet generator are used. However, an electric braking method may damage the rotor and/or blades by rapid stop of the generator revolution. Moreover, generator winding may also be damaged by large short-circuit current. In this paper, the electric braking method using NTC thermistors...
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