This issue documents research and development activities that utilize electrochemical principles and techniques to achieve practical objectives in applications ranging from processing crude ore to production of value-added materials. The focus will be on identifying opportunities for future progression that utilize the latest understanding of electrochemical mechanisms in processing systems.

The Chemistry of Electrode Processes discusses "electrodics" or the science dealing with the transfer of an electric charge between a solid and liquid phase. This book reviews the applications of electrodics, the history of electrochemistry, and the basic definitions and concepts of the galvanic cell. This text also deals with the rate expressions associated with the different types of electrode reaction mechanism including the passing of Faradaic current, the current-voltage curve, mass transport overpotential, and the influence of surface structure on electrode processes. This book describes the electrode-solution interphase at equilibrium, the properties of such interphase, and the ways it can influence electrode kinetics. Any electrode reaction involves several steps and can be influenced by diffusion, adsorption and other parameters. The techniques to study electrode reactions and the electrode-solution interphase consists of equilibrium measurements, steady state measurement, and transient measurement. This text also describes the significant and potential uses of electrodics in technology which need less expensive equipment compared to using spectrophotometric techniques. This book is suitable chemists, for advanced students in analytical chemistry, physics, thermodynamics, and related subjects.

Engineering technology is of crucial importance to the infrastructure on which modern societies depend, and keeping abreast of the latest research and developments in the field is of vital importance. This book presents the proceedings of HCET 2022, the 7th International Technical Conference on Frontiers of Hydraulic and Civil Engineering Technology, originally due to be held, in Sanya, China, from 25-27 September 2022, but instead held as a fully virtual event on Zoom due to continued uncertainty related to the Covid 19 pandemic. HCET is a platform for the dissemination of research results on the latest advances in the areas of hydraulic and civil engineering technology and environmental engineering, and provides an opportunity for scientists, researchers and engineers from around the world to exchange their findings, discuss developments, and possibly establish a basis for collaboration. A total of 275 submissions were received from international contributors, and all were subjected to a rigorous peer-review process, with each paper reviewed by a minimum of two experts. Papers were also checked for quality and plagiarism, after which, 163 papers were accepted for presentation and publication. Topics covered include the research and development of concrete structure design and analysis, structural mechanics and structural engineering, geological exploration and earthquake engineering, building technology, urban planning, energy, environment and advanced engineering science and applications. The book offers a state-of-the-art overview of recent developments, and will be of interest to all those working in the fields of hydraulic and civil engineering technology.