Foams are ubiquitous in our daily lives. Their presence is highly desirable in certain foods, drinks and cosmetics, and they are essential in oil recovery and mineral extraction. In some industrial processes (such as the manufacture of glass, paper and wine) foams are an unwelcome by-product. Why do they appear? What controls the rate at which they disappear? Do they flow in the same way as ordinary liquids? All of these questions and more are addressed here, incorporating significant recent contributions to the field of foams. This book is the first to provide a thorough description of all aspects of the physico-chemical properties of foams. It sets out what is known about their structure, their stability, and their rheology. Engineers, researchers and students will find descriptions of all the key concepts, illustrated by numerous applications, as well as experiments and exercises for the reader. A solutions manual for lecturers is available via the publisher's web site.

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

Elastic waves are used in fields as diverse as the non-destructive evaluation of materials, medicine, seismology and telecommunications. Elastic Waves in Solids 1 presents the different modes of propagation of elastic waves in increasingly complex media and structures. It first studies the propagation in an unlimited solid where only the material properties are taken into account. It then analyzes reflection and transmission phenomena at an interface with a fluid or a second solid. It explains the search for propagation modes on a free surface or at the interface between two media. Finally, it proposes a study of the dispersive propagation of elastic waves guided by a plate or a cylinder. This book is intended for students completing a master's degree in acoustics, mechanics, geophysics or engineering, as well as teachers and researchers in these disciplines.

Digitising personal information is changing our ways of identifying persons and managing relations. What used to be a "natural" identity, is now as virtual as a user account at a web portal, an email address, or a mobile phone number. It is subject to diverse forms of identity management in business, administration, and among citizens. Core question and source of conflict is who owns how much identity information of whom and who needs to place trust into which identity information to allow access to resources.

This book presents multidisciplinary answers from research, government, and industry. Research from states with different cultures on the identification of citizens and ID cards is combined towards analysis of HighTechIDs and Virtual Identities, considering privacy, mobility, profiling, forensics, and identity related crime.

"FIDIS has put Europe on the global map as a place for high quality identity management research." V. Reding, Commissioner, Responsible for Information Society and Media (EU)"

This book seeks to reimagine why and how to confront mass atrocities in world politics. Drawing on Hannah Arendt's conception of evil, it interprets and understands mass atrocities as 'evil' in an 'Arendtian' sense, that is, as crimes against human plurality and, thus, crimes against humanity itself. This understanding of mass atrocities paves the way for reframing responses to mass atrocities as attempts to confront evil. In doing so, the book focuses on military intervention under the banner of the Responsibility to Protect (R2P) and judicial intervention by the International Criminal Court (ICC) and reframes them as tools to protect human plurality from evil. Furthermore, the book looks at the place and the role of R2P and the ICC in the changing landscape of world order. It argues that the protection of humanity from evil can serve as a legitimate Grundnorm (basic norm) around which a global constitutional order in an inherently pluralistic world can be constructed.