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Abstrak :
This is a work in four parts, dealing with the mechanics and thermodynamics of materials with memory, including properties of the dynamical equations which describe their evolution in time under varying loads. The first part is an introduction to Continuum Mechanics with sections dealing with classical Fluid Mechanics and Elasticity, linear and non-linear. The second part is devoted to Continuum Thermodynamics, which is used to derive constitutive equations of materials with memory, including viscoelastic solids, fluids, heat conductors and some examples of non-simple materials. In part three, free energies for materials with linear memory constitutive relations are comprehensively explored. The new concept of a minimal state is also introduced. Formulae derived over the last decade for the minimum and related free energies are discussed in depth. Also, a new single integral free energy which is a functional of the minimal state is analyzed in detail. Finally, free energies for examples of non-simple materials are considered. In the final part, existence, uniqueness and stability results are presented for the integrodifferential equations describing the dynamical evolution of viscoelastic materials. A new approach to these topics, based on the use of minimal states rather than histories, is discussed in detail. There are also chapters on the controllability of thermoelastic systems with memory, the Saint-Venant problem for viscoelastic materials and on the theory of inverse problems.

Abstrak :
This book is an introduction to wearable computing, prototyping, and smart materials using the arduino platform. This book will get you set up with all the materials, software, and hardware you need. By the end of the book, you'll have learned, electronics basics, how to prototype successfully, arduino programming, how to design and build your own wearable Arduino creations, along the way you'll create fun and inspiring wearables, such as, an LED bracelet: learn the basics of wearable electronics, a synthesizer tie: accept user input and create output in response, a solar-powered glow in the dark bag: create self-sufficient wearables, a shape memory flower: store state and manipulate your wearables, an EL wire dress: add designer touches to your wearables, and a beatbox hoodie : use a voice-activated sequencer and skin resistance to create the coolest of urban wearables.

Abstrak :
Smart Material Systems: Model Development describes several novel applications currently under investigation that exploit the unique actuator and sensor capabilities of smart material compounds. In addition to present and projected applications, this book provides comprehensive coverage of both linear and nonlinear modeling techniques necessary to characterize materials in a manner that facilitates transducer design and control development. The author focuses on ferroelectric, magnetic, and shape memory compounds and also addresses applications exploiting amorphous and ionic polymers, magnetorheological compounds, and fiber optic sensors. Three classes of nonlinear models are discussed, all of which provide unified characterization frameworks for the broad class of combined compounds. An extensive discussion of structural models based on linear and nonlinear constitutive models is included, as is a chapter on numerical techniques for approximating solutions to the structural systems. The author also provides a synergistic treatment of material characterization, including significant discussion of the physics underlying nonlinear behavior, the development of nonlinear constitutive relations, the development of system models based on these constitutive relations, and the formulation of numerical techniques for approximating solutions to the resulting system models. To aid the understanding of both mathematical and physical terminology, an extensive glossary of terms is provided in an appendix. Furthermore, MATLAB software for representative models is provided at an accompanying website.

Abstrak :
We present the emission behavior of an elastic fluorescent material based on silicone doped wirh rhodamine 6G at 1.2 x103 M..Fluoresence properties of the material are modified by deformation, suggesting possible use of the material as a strain sensor....