American Journal of Physics and Applications

Volume 8, Issue 1, January 2020

  • Interpretation of Gyro Stability and Precession Mechanism by Law of Rotational Inertia

    Shaoshu Huang

    Issue: Volume 8, Issue 1, January 2020
    Pages: 1-7
    Received: 31 January 2020
    Accepted: 13 February 2020
    Published: 19 February 2020
    Abstract: The precession mechanism and stability of gyroscope is an outstanding problem. It has been widely believed for a long time that the precession of gyroscope is the result of the action of heavy moment. But this is not completely consistent with the experimental facts. This paper introduces the experimental phenomena of gyroscopic precession on the h... Show More
  • Investigating the Effect of ZnSe (ETM) and Cu2O (HTM) on Absorber Layer on the Performance of Pervoskite Solar Cell Using SCAPS-1D

    Joshua Adeyemi Owolabi, Mohammed Yusuf Onimisi, Jessica Amuchi Ukwenya, Alexander Bulus Bature, Ugbe Raphael Ushiekpan

    Issue: Volume 8, Issue 1, January 2020
    Pages: 8-18
    Received: 19 December 2019
    Accepted: 6 February 2020
    Published: 17 March 2020
    Abstract: Tin perovskite (CH3NH3SnI3) have attracted a lot of attention and could be a viable alternative material to replace lead perovskite in thin film solar cells. A detailed understanding on the effects of each component of a solar cell on its output performance is needed to further develop the technology. In this work, a numerical simulation of a plana... Show More