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A guide to the application of viscoelastic damping materials to control vibration and noise of structures, machinery, and vehicles Active and Passive Vibration Damping is a practical guide to the application of passive as well as actively treated viscoelastic damping materials to control vibration and noise of structures, machinery and vehicles. The author — a noted expert on the topic — presents the basic principles and reviews the potential applications of passive and active vibration damping technologies. The text presents a combination of the associated physical fundamentals, governing theories and the optimal design strategies of various configurations of vibration damping treatment...
This book presents a comprehensive coverage of smart structures, from the basic concepts to a wide spectrum of critical applications, including piezoelectric-based sensors, actuators, and self-sensing actuators. Throughout the book, attempts have been made to develop electrical analogies of the structural/piezoelectric interactions.The book is organized into seven chapters. The first three chapters cover the basic concepts of structural dynamics, control, piezoelectric actuators, and piezoelectric sensors. The following four chapters cover a wide range of important applications in active vibration control, passive shunted piezoelectric networks, comprehensive piezoelectric energy harvesting technology, and piezoelectric-based periodic and metamaterial structures. Every chapter concludes with several problems.
This paper examines the role of social spending in improving socioeconomic outcomes in the Middle East and Central Asia. In particular, it addresses the following questions: (1) how large is social spending across the region? (2) how do countries in the region fare on socioeconomic outcomes? (3) how important is social spending as a determinant of these outcomes? and (4) how efficient is social spending in the region?
This paper examines the role of social spending in improving socioeconomic outcomes in the Middle East and Central Asia. In particular, it addresses the following questions: (1) how large is social spending across the region? (2) how do countries in the region fare on socioeconomic outcomes? (3) how important is social spending as a determinant of these outcomes? and (4) how efficient is social spending in the region?
The goal of an activity-directed isolation process is to isolate bioactive compounds which may provide structural leads of therapeutic importance. Whereas the traditional process of drug development is long and expensive, simple and rapid bioassays can serve as the starting point for drug discovery. This book presents a range of "bench top" bioassa
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“A concise and powerful account of how the great recession happened and what should be done to avoid another one . . . well-argued and consistently informative.” —Wall Street Journal The Great American Recession of 2007-2009 resulted in the loss of eight million jobs and the loss of four million homes to foreclosures. Is it a coincidence that the United States witnessed a dramatic rise in household debt in the years before the recession—that the total amount of debt for American households doubled between 2000 and 2007 to $14 trillion? Definitely not. Armed with clear and powerful evidence, Atif Mian and Amir Sufi reveal in House of Debt how the Great Recession and Great Depression, ...
Since the beginning of the pandemic, efforts have been made to monitor both school closures (and re-opening) and the measures put in place to ensure continuity of learning. These include the Survey of Ministries of Education on National Responses to COVID-19, jointly supported by UNESCO, UNICEF and the World Bank. However, to date, no systematic evidence has been available on how students' learning is being affected by the disruptions caused by the pandemic or on the impact of education response measures initiated by governments. This report contributes to filling this evidence gap and includes a series of simulations of potential learning losses due to COVID-19 and exploration of their longer-term implications. The analysis is based on the Enabling learning for all framework, which outlines access, engagement and enabling environment as the three crucial enablers for learning, while the simulation assumptions are informed by the evidence on school closures and governments' education-related responses, collected through the joint survey.