Engineering and Applied Sciences

Volume 5, Issue 3, June 2020

  • Design and Verification of Acoustic Room for Consumer Product Safety Testing

    Shulun Mak, Chiho Li, Waifan Tang, Chiwing Lai

    Issue: Volume 5, Issue 3, June 2020
    Pages: 50-55
    Received: 9 April 2020
    Accepted: 22 May 2020
    Published: 3 June 2020
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    Abstract: Sound Producing Toys consists the sound emitting characteristics to attract children’s attention, such as emitting music or simulating animal’s call. The excess sound pressure level (SPL) could damage the human hearing. The international toy safety standards are established to limit the maximum sound pressure level emitted from the product. The Chi... Show More
  • Transient Enhancement of Smart Grid Using SMES Controlled by PID and Fuzzy Logic Control

    Ahmed Alshahir, William Collings, Richard Molyet, Raghav Khanna

    Issue: Volume 5, Issue 3, June 2020
    Pages: 56-65
    Received: 20 May 2020
    Accepted: 3 June 2020
    Published: 17 June 2020
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    Abstract: A Smart Grid is an electrical system that is comprised of energy sources, controls, computers and equipment integrated to operate as a unit in the form of an electrical grid to respond to changing power demands. Renewable energy technologies such as a wind turbine are part of this unit. The output power of wind generators experiences dramatic daily... Show More
  • Solar Arrays and Battery Power Sources Conceptual Design for Low Earth Orbit Microsatellites

    Mohammed Bekhti, Messaoud Bensaada

    Issue: Volume 5, Issue 3, June 2020
    Pages: 66-70
    Received: 27 November 2019
    Accepted: 31 March 2020
    Published: 28 June 2020
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    Abstract: The power system is a vital subsystem in a spacecraft. As long as the spacecraft has power, it can perform its mission. Almost all other failures can be worked out by ground operations from ground stations but a power loss is very fatal for the spacecraft. In the early years of spaceflight, the power system was also the limiting factor in any missi... Show More