We are glad to present to our readers the 37th volume of International Journal of Engineering Research in Africa. This volume contains articles describing the research results in the fields of materials science, mechanical engineering, power distribution, construction materials and technologies, technological processes in the chemical production and environmental engineering, network engineering and supply chain. The articles will be useful for many engineers as well as for academic teachers and students majoring in these fields of engineering science.

The 44th volume of International Journal of Engineering Research in Africa contains articles describing the research results in the fields of materials science, mechanical engineering, applied and computational mechanics, construction materials and technologies, technological processes and materials in the petroleum production, natural resources exploration and environmental engineering, robotics, renewable energy, power engineering and control, production management. The articles will be useful for many engineers as well as for academic teachers and students majoring in these fields of engineering science.

We present to our readers the 45th volume of "International Journal of Engineering Research in Africa". This volume contains articles reflecting the research results in the fields of materials science, applied mechanics and mechanical engineering, ergonomics and optimization of technological parameters, power distribution and power efficiency, control, faults diagnosis and industrial engineering. The articles will be useful for many engineers as well as for academic teachers and students majoring in these fields of engineering science.

This periodical edition includes peer-reviewed papers based on results of scientific research and engineering solutions in different areas of modern engineering science.

This periodical edition includes peer-reviewed papers based on results of scientific research and engineering solutions in different areas of modern engineering science.

This journal volume contains papers that reflect research results in materials science, power engineering, and environmental engineering. Additionally, under the focus of this volume is the study on reducing wastes formation in the construction industry. Furthermore, the presented research results may find useful for scientists and engineers deal with powder metallurgy issues and material characterization. Some papers are devoted to solving drilling issues in the oil and gas industry. Eventually, the volume presents an analysis of various algorithms that can find their application in civil and industrial engineering areas.

Selected peer-reviewed full text papers from the 3rd International Conference on Advanced Materials Science (ICOAMS 2020) Selected, peer-reviewed papers from the 3rd International Conference on Advanced Materials Science (ICOAMS 2020), December 8-9, 2020, Surakarta, Indonesia