Engineering and Applied Sciences

Volume 9, Issue 6, December 2024

  • Research Article

    Calculation Method Based on Flower Petal Area and Other Plant Leaf Spot Area

    Shengjian Ma*, Jian Wang, Junxian Guo

    Issue: Volume 9, Issue 6, December 2024
    Pages: 129-135
    Received: 9 October 2024
    Accepted: 25 October 2024
    Published: 12 November 2024
    DOI: 10.11648/j.eas.20240906.11
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    Abstract: In order to calculate the area of irregular shapes such as plant leaves and diseased spots or flower petals, this paper presents a new method to calculate them by using flood fill algorithm, HSV color space, improved k-means algorithm and morphological operation. First, 501 butterfly petal images and pathological leaf images of Bauhinia and phyllot... Show More
  • Research Article

    Photovoltaic Performance Improvement of Dilute Nitrides GaAs1-xNx -Based Thin-Film Solar Cell Structure Using SCAPS-1D Software

    Zamil Sultan*, Nuralam Howlader, Forhad Hossen, Asaduzzaman Joy, Asadul Haque

    Issue: Volume 9, Issue 6, December 2024
    Pages: 136-146
    Received: 8 October 2024
    Accepted: 12 November 2024
    Published: 29 November 2024
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    Abstract: The recent industrial revolution has increased the demand for the possible use of renewable energy sources to meet the World’s high energy requirements and to minimize the quantity of green-house gases (GHGs) in the atmosphere at once in a sustainable manner. Solar energy is one of the renewable energy sources that has garnered the most attention f... Show More
  • Review Article

    The Role of Microorganisms in Bio-cement Production: An Extended Review

    Yoseph Sisay Tegegn*

    Issue: Volume 9, Issue 6, December 2024
    Pages: 147-159
    Received: 15 October 2024
    Accepted: 18 November 2024
    Published: 7 December 2024
    DOI: 10.11648/j.eas.20240906.13
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    Abstract: Bio-cement is an innovative material with the potential for replacement of conventional cement through microorganisms-influenced process. The major method uses bacterial, fungal, or algal activity to produce Microbial-Induced Calcium carbonate Precipitation (MICP). This review aims to understand the microbial aspect of bio-cement production explain... Show More