This reference is a compilation of work from different technology groups that give an insight into strategies used for technology optimization and technical R&D. Each of the 14 chapters presented in the book are contributed by engineering experts and focus on different aspects of smart technologies. The chapters cover a wide range of technical disciplines with a list of references for further reading. The compilation demonstrates methods that are useful to apprentices and researchers involved in the development of technologies in different fields: · Wireless networking · Signal processing · Control and machine engineering · SOC design · Materials science and nanotechnology · Biomedical engineering · Power electronics The contributions in this book provide interesting examples for product development such as custom nanomaterials, digital electronics, smart devices and antennas. The content also serves as a reference for designing special components used for complex systems like wireless communication systems, automated control systems and organic waste processing systems. The content is structured in a format suitable for both learners and advanced researchers, making this reference essential to engineers at all levels.

Dyes From Discard: Upcycling Tea Waste For Sustainable Fabric Dying promotes circular resource use in the textile industry by exploring sustainable textile colouration through the innovative use of tea waste. While natural dyes currently account for only 5% of the global market due to challenges like cost, availability, and reproducibility, this work demonstrates how these limitations have inspired impactful research and practical solutions.

The book begins by reviewing synthetic dyes, their environmental impact, and modern dyeing technologies, highlighting the need for sustainable alternatives. It then delves into natural dyes—their types, sources, advances, and challenges—and examines the role of bio-based textiles and green chemistry. The focus then shifts to practical applications, presenting detailed methods for extracting dyes from black, oolong, white, and green tea leaves and transforming tea waste into effective fabric dyes.

Finally, the book showcases a success story of scaling this innovation from laboratory research to pilot trials and industrial production, using tea waste from a major ready-to-drink tea manufacturer. This real-world example demonstrates both technical feasibility and commercial potential, offering a roadmap for researchers, students, textile professionals, and sustainability practitioners.

Key Features:

• Innovative use of tea waste for sustainable textile dyeing

• Covers synthetic and natural dyes, green chemistry, and bio-based textiles

• Detailed extraction methods and industrial upscaling strategies

• Combines scientific rigour with practical guidance and real-world case studies