American Journal of Science, Engineering and Technology

Volume 6, Issue 4, December 2021

  • Quantum Field Theory on Noncommutative Curved Space-times and Noncommutative Gravity

    Subhamoy Singha Roy

    Issue: Volume 6, Issue 4, December 2021
    Pages: 89-93
    Received: Aug. 13, 2021
    Accepted: Aug. 27, 2021
    Published: Oct. 05, 2021
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    Abstract: In the noncommutative gauge-theoretical formulation of Langman and Szabo, apparently it appears that the torsion generated there is a generalized one i.e. it may containvector, axial vector and tensor components. However, when we transcribe the noncommutative gauge theory in terms of the Maxwell gauge theory using the Seiberg-Wittencorrespondence, ... Show More
  • Determining Reservoir Model Based on Welltest Analysis for Production Forecasting

    Harry Budiharjo Sulistyarso

    Issue: Volume 6, Issue 4, December 2021
    Pages: 94-104
    Received: Aug. 30, 2021
    Accepted: Oct. 11, 2021
    Published: Oct. 19, 2021
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    Abstract: Welltest analysis is basically an analysis of fluid flow behavior in porous rocks, both in oil reservoirs and gas reservoirs that aim to obtain reservoir characteristics. Welltest analysis is not only limited to get reservoir characteristics and well productivity, but to determine the reservoir and boundary models that are close to the real situati... Show More
  • Simulating the Progression of the COVID-19 Pandemic and Analyzing the Effects of Vaccination

    Ashley Seong, Jeewon Han, Jungyoon Lee, SungMin Lee

    Issue: Volume 6, Issue 4, December 2021
    Pages: 105-112
    Received: Sep. 24, 2021
    Accepted: Oct. 09, 2021
    Published: Oct. 21, 2021
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    Abstract: With thousands of COVID-19 cases on the rise, The project look back and see that it has already been more than a year and a half since the first COVID-19 case has been recorded. After months and months of the raging pandemic, many begin to wonder: what will it take to end it? As scientists and researchers scramble to come up with a global solution,... Show More
  • Islamic Values in Landscape & Architecture - Case Studies, Contemporary Relevance & Strategies

    Fabeha Fatima

    Issue: Volume 6, Issue 4, December 2021
    Pages: 113-121
    Received: Jul. 06, 2021
    Accepted: Sep. 26, 2021
    Published: Dec. 29, 2021
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    Abstract: There is a global interconnection that has been prospering since the dawn of mankind. The process of connecting the world started thousands of years ago. The ancient world saw the establishment of two major globalizing forces - Christianity and Islam. These forces spread throughout the world and with them spread power, culture, values and principle... Show More
  • Production of Hollow Block Using Waste Plastic and Sand

    Bien Maunahan, Kebene Adeba

    Issue: Volume 6, Issue 4, December 2021
    Pages: 122-138
    Received: Jul. 04, 2021
    Accepted: Aug. 20, 2021
    Published: Dec. 31, 2021
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    Abstract: In building construction, hollow concrete block (HCB) is a versatile material used in the construction industry, consisting of a mixture of cement, sand, and optionally fine aggregates with water. The cost of these materials, which make up the concrete block, is expensive. So we should use a renewable natural resource that causes negative impacts o... Show More