Vol. 4 No. 3 (2021)

Articles

• Towards Developing Criteria to Evaluate the Functional Performance Efficiency of Learning Spaces

  Sara Hisham Br, Shahira Sharafeldin, Sherif Sheta, Wesam Mehanna

  1-14

  DOI: https://doi.org/10.33422/ejest.v4i3.598

• Performance comparison of classifiers on twitter sentimental analysis

  Shruti Wadhwa, Karuna Babber

  15-24

  DOI: https://doi.org/10.33422/ejest.v4i3.740

• Techno Economy Comparison of Conventional Generating Unit and Lithium Battery Energy Storage as a Primary Frequency Regulation of Variable Renewable Energy Penetrated Grid System, Case Study: Southern Sulawesi of Indonesia

  Rendy Yuliansyah, Aditya Idamsyah, Irwan Paundra, Bambang Priyono

  25-38

  DOI: https://doi.org/10.33422/ejest.v4i3.739

• Integrated Modeling of Natural Tin Photoactivation

  Cristiana Oprea, Alexandru Mihul, Alexandru Ioan Oprea

  39-46

  DOI: https://doi.org/10.33422/ejest.v4i3.607