Althoughtheprinciplesofoperationofhelicalscrewmachines,ascompressors or expanders, have been well known for more than 100 years, it is only during the past 30 years that these machines have become widely used. The main reasons for the long period before they were adopted were their relatively poor e?ciency and the high cost of manufacturing their rotors. Two main developments led to a solution to these di?culties. The ?rst of these was the introduction of the asymmetric rotor pro?le in 1973. This reduced the bl- hole area, which was the main source of internal leakage by approximately 90%, and thereby raised the thermodynamic e?ciency of these machines, to roughly the same level as that of traditional reciprocating compressors. The second was the introduction of precise thread milling machine tools at - proximately the same time. This made it possible to manufacture items of complex shape, such as the rotors, both accurately and cheaply. From then on, as a result of their ever improving e?ciencies, high rel- bility and compact form, screw compressors have taken an increasing share of the compressor market, especially in the ?elds of compressed air production, and refrigeration and air conditioning, and today, a substantial proportion of compressors manufactured for industry are of this type. Despite, the now wide usage of screw compressors and the publication of many scienti?c papers on their development, only a handful of textbooks have been published to date, which give a rigorous exposition of the principles of their operation and none of these are in English.

This book showcases cutting-edge research papers from the 9th International Conference on Research into Design (ICoRD 2023) – the largest in India in this area – written by eminent researchers from across the world on design processes, technologies, methods and tools, and their impact on innovation, for supporting design for a connected world. The theme of ICoRD’23 has been ‘Design in the Era of Industry 4.0’. Industry 4.0 signifies the fourth industrial revolution. The first industrial revolution was driven by the introduction of mechanical power such as steam and water engines to replace human and animal labour. The second industrial revolution involved introduction of electrical power and organised labour. The third industrial revolution was powered by introduction of industrial automation.

This book reflects and expands on current trends in the Architecture, Engineering and Construction (AEC) industries as they respond to the unfolding climate and biodiversity crisis. Shifting away from the traditional focuses, which are narrowly centered on efficiency, this book presents a variety of approaches to move the AEC community from a linear, extractive paradigm to circular and regenerative one.

This book reports on research findings and practical lessons featuring advances in the areas of digital and interaction design, graphic design and branding, design education, society and communication in design practice, and related ones. Gathering the proceedings of the 7th International Conference on Digital Design and Communication, Digicom 2023, held on November 9-11, 2023, as a hybrid event, in/from Barcelos, Portugal, this book continues the tradition of the previous ones reporting on new design strategies to foster digital communication within and between the society, institutions and brands. By highlighting innovative ideas and reporting on multidisciplinary projects, it offers a source of inspiration for designers of all kinds, including graphic and web designers, UI, UX and social media designers, and to researchers, advertisers, artists, and brand and corporate communication managers alike.

Nature is a vast source of inspiration and information for the resolution of complex problems and can influence many varieties of design. Biomimetics, biodesign and bionics are three branches of interdisciplinary research merging biological and applied sciences. This volume collects cases that highlight recent breakthroughs in these disciplines. Biological features such as patterns, shapes, mechanisms, colors, structures, and more can be analyzed, organized, and modeled for application in human creations. Therefore, design, engineering, and architecture projects can benefit from solutions that were already tested and verified through evolution in the natural world. With the development of new technologies for the investigation, simulation, and testing of natural features, the path from nature to product can be accelerated. The cases presented in this work showcase how technological advancements are leading to improved design solutions and influencing our very comprehension of natureand its complex organization.

This volume contributes to the construction of a multi-voice mosaic on the theme of Nature and the relationship between Man (understood as designer) and Nature by emphasizing the innovative and sustainable proposals coming from the discipline of design, in its many facets and interdisciplinary contributions. Since it isn’t discussed the creative and economic effort that designers, institutions and companies have been leading for years to improve human living conditions, preference will be given to scientific contributions (unpublished or not yet fully known case studies, projects of strategies, products, systems and services, theoretical contributions, communication) that are an expression of a new approach to Nature, seen as our ally and object of an ethics of care. The focus is the design both in its role as innovation driver and interpreter of social evolution, that must be considered within the human-nature relationship. The topics identify some of the most relevant fields of development in which "Design Driven Innovation" can be developed in the respect of perspective of a new relationship with nature.

This 2-volume book highlights cutting-edge ecodesign research and covers broad areas ranging from individual product and service design to social system design. It includes business and policy design, circular production, life cycle design and management, digitalization for sustainable manufacturing, user behavior and health, ecodesign of social infrastructure, sustainability education, sustainability indicators, and energy system design. Featuring selected papers presented at EcoDesign 2021: 12th International Symposium on Environmentally Conscious Design and Inverse Manufacturing, it also includes diverse, interdisciplinary approaches to foster ecodesign research and activities. In the context of Sustainable Development Goals (SDGs), in particular SDG 12 (Responsible Consumption and Production), it addresses design innovations for sustainable value creation, considering technological developments, legislation, and consumer lifestyles. Further, the book discusses the conceptof circular economy, which aims to develop circular business models for resource efficient society by taking advantage of digital technologies including artificial intelligence, internet of things, digital twin, data analysis and simulation.

This book offers a cutting-edge perspective of design for space to increase astronauts’ wellbeing and performance creating a more sustainable and inclusive environment, but without to forget beauty. The relevant aspect is that these design principles are now also supported and promoted by the European Community with the New European Bauhaus project. It is legitimate to affirm that Space Design is a precursor and inspiring these principles. Space exploration has shown us how results of space research inspire management policies addressing important earth issues such as the responsible use of resources as well as ethical behavior leading to sustainable and inclusive choices. The International Space Station (ISS) is the most successful virtuous example of circular economy and sustainability by almost totally recycling the waste produced. Recently the European Space Agency (ESA) launched the first call for “parastronauts” opening the fly possibilities to people with physical disabilities and thus affirming the principle of inclusion in space. Thanks to design—a bridge between science, technology, and beauty—space opens up to new creative experiments, placing the human being at the center of the interplanetary exploration programs to ensure extra-terrestrial habitats safer, more comfortable, and efficient, where crew will feel “like at home”.