Smart Patches
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Smart Patches
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Author : Dominique Paret
language : en
Publisher: John Wiley & Sons
Release Date : 2023-07-26
Smart Patches written by Dominique Paret and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-07-26 with Technology & Engineering categories.
This book defines and elucidates the topic of smart "second skin" clothing, which must be flexible, washable, ironable, long-lasting and battery-free. We explore the possibilities for its use in fields such as health, well-being, sports and leisure. Smart Patches presents techniques that can be used within the limits established by regulations (EMC, normative, GDPR, ANSES, etc.) to help make smart clothing a marketable product at an affordable price. This book studies the creation and performance of various sensors and biosensors based on graphene materials and describes the functioning of Intra-Body Communications (IBC), as well as all the internal and external parameters involved in this type of technology. The performances and limits of these IBC and technologies are presented, together with concrete application examples.
Smart Patches For Monitoring Fatigue Crack Growth In Aircraft Structures
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Author :
language : en
Publisher:
Release Date : 2001
Smart Patches For Monitoring Fatigue Crack Growth In Aircraft Structures written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
A built-in cost-effective diagnostic system for monitoring crack growth in aircraft structures was developed, particularly for riveted fuselage joints and cracked aircraft parts with composite bonded patches. Different smart patch designs for crack growth monitoring at fuselage lab joints and cracked parts with composite bonded patches were developed and integrated with the corresponding aircraft parts. Using the diagnostic software, pre-selected diagnostic signals are propagated from a designated piezoelectric actuator to neighboring sensors. The corresponding sensor signals are recorded and compared with a baseline reference, which was recorded earlier. The signal processing technique and a damage index resulting from an interpretation algorithm were developed and implemented for extracting features related to crack growth conditions at the time of measurement. The damage index was verified by a crack propagation test on a notched aluminum plate which was fatigued under cycling loading. A fatigue test for multi-riveted aluminum lap joint (936 x 462 mm) with smart patches installed was performed and the damage index results were compared with conventional NDT methods including eddy current and ultrasonic scan. The probability of damage detection (POD) was assessed for the damage index comparing with two conventional NDT methods. Also, an aluminum plate repaired with boron/epoxy patch where smart patches were inserted was tested and the results were compared with the crack growth results by a visible inspection. The crack growth prediction of the damage index on both experiments showed a good agreement with NDT predictions as well as visual inspection results.
Flexible Sensors And Smart Patches For Multimodal Sensing
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Author : Akanksha Rohit
language : en
Publisher:
Release Date : 2021
Flexible Sensors And Smart Patches For Multimodal Sensing written by Akanksha Rohit and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with Biosensors categories.
Emerging wearable technologies are creating a major impact in the area of health monitoring, aerospace, prosthetics and robotics to monitor crucial information in real time which could not be achieved using conventional electronics only. The demand for multifunctional wearable systems is set to grow exponentially in the next decade and low cost multimodal sensor patches that can be closely coupled to the skin define the success of this new era of digital health and robotics. Accordingly, this dissertation focuses on developing a wireless multi-modal sensor patch that can be directly placed on the skin or integrated into clothing to monitor multiple biophysical and structural signals simultaneously. Serving both as a multimodal sensor as well as a compact integration platform for smart textile development, the proposed patch is ideally suited for complex body performance monitoring, realistic worker training and for high-risk patients. The foundation of this research is based on parallel plate capacitive sensors with elastomeric dielectrics (Ecoflex/PDMS) and conductive textile electrodes. The patches are highly stretchable (100%) with a gauge factor of 0.64 with pure silicone (Ecoflex) as the dielectric layer. The gauge factor of the capacitive strain sensor is enhanced two-fold with the inclusion of high-k (or relative dielectric constant) barium titanate (BTO) nanoparticles dispersed in the silicone dielectric layer without sacrificing its linearity and durability easily exceeding 2000 cycles. To further improve the capacitive performance and capabilities for multi-modal sensing, the elastomer dielectric layer is modified with highly flexible polyurethane (PU) foam. With a foam-based dielectric, the change in capacitance is not only due to the change in the thickness of the dielectric but also due to the change in the permittivity of the micropores due its porous structure. In addition to bending and stretching, the foam-based dielectric had a high-pressure sensitivity (0.0198 kPa-1) in the range of 0-4.5 kPa making it capable to monitor phonation, pulsatile flow and respiration. The piezoelectric properties of films, including the nanoparticles of barium titanate (BTO), lead zirconate titanate (PZT) and polyvinylidene fluoride-trifluoroethylene (PVDF-TrFE) was systematically studied at different weight ratios by bending and motor vibrational tests. On corona poling the nanocomposite films at high field (6 kV/cm), the voltage output of all the piezoelectric sensors increased by two-fold. Therefore, with a few modifications in the dielectric layer, the patches are sufficiently sensitive to detect multiple stimuli such as strain, pressure, temperature, bending, vibration, and acoustic feedback. Due to limitations with high poling voltages that can cause arcing, triboelectric sensing was also explored in this work. While charge generation in piezoelectric materials is due to deformation and shift of ions in the crystal structure, triboelectricity is the charge generated due to friction between the two materials. Amongst all the material studied, polyurethane foam was used as the positive frictional layer and PDMS mixed with expandable microspheres was used as the negative frictional layer. The high sensitivity of the triboelectric sensors were capable of sensing small movements such as blinking and chewing, breathing rate and pulsatile flow which could not be detected with the piezoelectric sensors. Three different designs of multimodal patches were developed by combining the different dielectrics into a single patch
Wave Propagation In Materials And Structures
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Author : Srinivasan Gopalakrishnan
language : en
Publisher: CRC Press
Release Date : 2016-11-03
Wave Propagation In Materials And Structures written by Srinivasan Gopalakrishnan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-11-03 with Science categories.
This book focuses on basic and advanced concepts of wave propagation in diverse material systems and structures. Topics are organized in increasing order of complexity for better appreciation of the subject. Additionally, the book provides basic guidelines to design many of the futuristic materials and devices for varied applications. The material in the book also can be used for designing safer and more lightweight structures such as aircraft, bridges, and mechanical and structural components. The main objective of this book is to bring both the introductory and the advanced topics of wave propagation into one text. Such a text is necessary considering the multi-disciplinary nature of the subject. This book is written in a step-by step modular approach wherein the chapters are organized so that the complexity in the subject is slowly introduced with increasing chapter numbers. Text starts by introducing all the fundamental aspects of wave propagations and then moves on to advanced topics on the subject. Every chapter is provided with a number of numerical examples of increasing complexity to bring out the concepts clearly The solution of wave propagation is computationally very intensive and hence two different approaches, namely, the Finite Element method and the Spectral Finite method are introduced and have a strong focus on wave propagation. The book is supplemented by an exhaustive list of references at the end of the book for the benefit of readers.
Handbook Of Research On Lifestyle Sustainability And Management Solutions Using Ai Big Data Analytics And Visualization
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Author : Iyer, Sailesh Suryanarayan
language : en
Publisher: IGI Global
Release Date : 2021-12-24
Handbook Of Research On Lifestyle Sustainability And Management Solutions Using Ai Big Data Analytics And Visualization written by Iyer, Sailesh Suryanarayan and has been published by IGI Global this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-12-24 with Technology & Engineering categories.
The sudden outbreak of the COVID-19 pandemic has curbed human lifestyle by imposing restrictions on regular daily movements that had been taken for granted. Due to the pandemic, the welfare segment has received more attention, and every possible effort is being made to prioritize the services at the top. This can be made possible while using the latest tools, technologies, and resources that impact the human culture and welfare of well-being. Novel methods and devices that make the welfare services more efficient, adaptive, transparent, and cost-effective need to be explored. The Handbook of Research on Lifestyle Sustainability and Management Solutions Using AI, Big Data Analytics, and Visualization offers extensive research on lifestyle management and services that contribute towards indication, detection, conduction, protection, and technological enhancement including machine learning, deep learning, artificial intelligence, big data analytics, and visualization. It also provides mechanisms that can improve lifestyle monitoring and help in increasing the immunity of the human body. Covering topics such as big data, robot therapy, and wearable technology, it is ideal for students, researchers, technologists, IT specialists, computer engineers, systems engineers, data scientists, doctors, hospital administrators, engineers, academicians, and technology providers.
Smart Materials
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Author :
language : en
Publisher:
Release Date : 2000
Smart Materials written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Microactuators categories.
Advanced Synthetic Materials In Detection Science
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Author : Professor Subrayal M Reddy
language : en
Publisher: Royal Society of Chemistry
Release Date : 2014
Advanced Synthetic Materials In Detection Science written by Professor Subrayal M Reddy and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Science categories.
This book captures the key developments at the synthetic receptor/biology/detection science interface with chapters demonstrating how growing disciplines are being used to develop new smart materials for diagnostic sensor and biosensor applications.
Computational Methods For Smart Structures And Materials Ii
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Author : C. A. Brebbia
language : en
Publisher: Computational Mechanics
Release Date : 2000
Computational Methods For Smart Structures And Materials Ii written by C. A. Brebbia and has been published by Computational Mechanics this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Technology & Engineering categories.
Featuring contributions from a range of professionals involved in the field of smart structures and materials, this volume contains the proceedings of the Second International Conference on Computational Methods for Smart Structures and Materials. Particular emphasis is placed on the application of computational methods to model, control and manage behaviour, and topics covered include sensor and actuator technologies, adaptive materials, physical systems modelling and analysis, active and passive control strategies, testing and verification, and analysis tools.
Handbook Of Research On Recent Developments In Intelligent Communication Application
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Author : Bhattacharyya, Siddhartha
language : en
Publisher: IGI Global
Release Date : 2016-12-12
Handbook Of Research On Recent Developments In Intelligent Communication Application written by Bhattacharyya, Siddhartha and has been published by IGI Global this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-12 with Computers categories.
The communication field is evolving rapidly in order to keep up with society’s demands. As such, it becomes imperative to research and report recent advancements in computational intelligence as it applies to communication networks. The Handbook of Research on Recent Developments in Intelligent Communication Application is a pivotal reference source for the latest developments on emerging data communication applications. Featuring extensive coverage across a range of relevant perspectives and topics, such as satellite communication, cognitive radio networks, and wireless sensor networks, this book is ideally designed for engineers, professionals, practitioners, upper-level students, and academics seeking current information on emerging communication networking trends.
Advances And Trends In Structural Engineering Mechanics And Computation
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Author : Alphose Zingoni
language : en
Publisher: CRC Press
Release Date : 2010-08-16
Advances And Trends In Structural Engineering Mechanics And Computation written by Alphose Zingoni and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-08-16 with Technology & Engineering categories.
Advances and Trends in Structural Engineering, Mechanics and Computation features over 300 papers classified into 21 sections, which were presented at the Fourth International Conference on Structural Engineering, Mechanics and Computation (SEMC 2010, Cape Town, South Africa, 6-8 September 2010). The SEMC conferences have been held every 3 years in