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The results of experiments are described where the energy loss per cycle occurring at a flat metallic interface subjected to oscillating tangential loads is measured. The effects • of the magnitudes of the normal and oscillating tangential loads on this energy loss are observed for various materials. The results presented should be useful to those interested in machine tools or similar structures where the damping occurring in bolted joints is important. Journal of Engineering for Industry AUGUST 1975 / 1087 Copyright © 1975 by ASME Downloaded From: http://manufacturingscience.asmedigitalcollection.asme.org/ on 06/16/2015 Terms of Use: http://asme.org/terms

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Planet Happiness is pioneering a new approach to inclusive tourism planning, putting host communities at the heart of destination planning processes. Tourism is one of the world's largest and fastest growing industries. With 1.403 billion visitor movements across international borders in 2018 and employing more than one in ten people worldwide, tourism has a major impact on the well-being of destination communities. While tourism can be viewed as a vehicle for development, the term "overtourism" is increasingly applied to disaffected destinations around the world. Using concepts from community and social well-being, Planet Happiness proposes tourism should be planned and managed to strengthen the collective well-being of destination communities. Building on well-being knowledge accumulated with communities and governments since 2010, Planet Happiness provides a methodology and resources to enable host communities and wider stakeholders to guide tourism development away from overtourism and towards destination happiness, well-being and sustainability.