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This book presents the experimental development of an information-powered engine inspired by the famous thought experiment, Maxwell’s demon, to understand its potential to produce energy for practical purposes. The development of an engine based on Maxwell’s demon was for a long time inconceivable, but technological advances have led to novel investigations into theoretical and practical applications.  The built information engine consists of a micron-sized glass bead trapped in a tightly focused laser beam. It rectifies the bead's Brownian motion by controlling the laser's...

Structures will contain cracks and crack-like flaws before entering into service or will develop them during their service life. It is essential to detect these flaws and quantify their growth so as to enable safety of the structure during its service life. Because of wide application of stress intensity factor approach, many methods, both theoretical and experimental, of evaluating them for various types of cracked configuration have been developed. This thesis deals with a theoretical method of evaluation of S.I.F. for several elliptical crack and punch problems. The thesis is divided into...