We are glad to present our readers with the 40th 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 and power control, construction materials and technologies, technological processes in the wastewater treatment 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.

We are glad to present the 35th volume of International Journal of Engineering Research in Africa. This volume contains articles describing the research results in the fields of materials science in the mechanical engineering, construction materials, technological processes in the chemical production, power distribution and engineering management. The articles will be useful for many engineers as well as for academic teachers and students majoring in these fields of engineering science.

Special topic volume with invited peer reviewed papers only.

We present the 56th volume of the "International Journal of Engineering Research in Africa" to our readers. The collection contains the articles reflecting the research results in the fields of structural steel and alloys, development of composites, applied mechanics and mechanical engineering, experimental investigations of cement and concrete properties, assessment of the seismic resistance of structures, reliable preventive maintenance scheduling in power systems, cloud computing technology in Cloud of Things, evaluation of sustainable transportation system. The articles will be helpful for many engineers, academic teachers, and students majoring in the mentioned branches of engineering science.

The Conference Theme was: "Moving Africa forward through Engineering, Technology and Innovation". The conference brought together academics, researchers and industrialists from many disciplines, in particular those that have the most impact on Africa's Development. Most conferences on the continent have covered limited disciplines and therefore the opportunity has been lost sharing information, results and knowledge in a way which can solve the many contentious issues, most of which can be solved through a multidisciplinary approach.

African nations are seeking ways to build strong institutions that are development-oriented and people-centred. Extant literature has reported the negative consequences of ineffective government communications with the public. In response, this book — the first of a two-volume edited work — focuses on marketing communication themes related to branding, public relations, trade fairs and exhibitions, and public sector communications. Public sector marketing communication plays a crucial role in bridging the gap between society and the government. Building a relationship with the public through appropriate communication tools and platforms is sacrosanct to restoring public sector image and trust. The book supports this effort by sharing conceptual and theoretical research towards the marketisation of Africa’s public sector as it strives to become an effective partner with the public it serves. Together with the second volume, which focuses on traditional and digital perspectives, this collection fills an existing information gap that is evident in Africa’s public sector.