Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"Electro-active"”.
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Designing devices using electro-active yield stress fluids
Understanding the rheo-electrical properties of electro-active yield stress fluids (EAYS) lies at the heart of enabling the design of a number of novel applications such as smart valves and semi-solid flow batteries. This thesis explores the rheological and electrical properties of EAYS fluids, …
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Dielectric and Kerr Effect Studies of Electro-Active Polymer Complexes
… for these observations. The dielectric and electro-optical properties of tetracyanoquinodimethane and iodine complexes of benzene, toluene, o-, m-, p-xylene, biphenyl, terphenyl and m-biphenylbenzene and those of the pure compounds were undertaken through the measurement of static dielectric …
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The mechanics of elastomers filled with electro-active solid and fluid inclusions
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
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Design of flexible actuators using electro-active polymers and CPG-based control strategies
… concepts and require-ments for using dielectric electroactive polymers (EAP) for designing of exible actuators and manipulators. A model-guided approach to design a bio-inspired exible actuator mod-ule is presented analyzed. Further, mathematical modelling for Central Pattern Generators (CPGs) is …
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Nonlinear Electromechanical Deformation of Isotropic and Anisotropic Electro-Elastic Materials
Electro-active polymers (EAPs) have emerged as a new class of active materials, which produce large deformations in response to an electric stimulus. EAPs have attractive characteristics of being lightweight, inexpensive, stretchable, and flexible. Additionally, EAPs are conformable, and their …
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From Block Copolymers to Crosslinked Networks: Anionic Polymerization Affords Functional Macromolecules for Advanced Technologies
… to stimulate new opportunities for emerging electro-active applications ranging from high performance energy devices to water purification membranes. Progress in polymer synthesis and engineering now permit well-defined, ion-containing macromolecules with tunable morphologies, mechanical …
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Modeling, simulation, and control of a polypyrrole-based conducting polymer actuator
A detailed model was developed for an ionic electro-active polymer (EAP) actuator. The electrical and chemical domains of the system were modeled using a simple electrical circuit. Ionic charge storage within the polymer was described using a linear reticulated model. This model improves upon the …
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Design and testing of fiber-constrained electroactive polymer
Soft robotics take advantage of active materials to regenerate many complex motions, including low-force functions, such as camouflage, micro-grabbing, or agile locomotion of micro robot. For these applications, traditional actuators, like electric motors and combustion engines, are unnecessarily …
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Sonoelectrochemical (20 khz) production of hydrogen from aqueous solutions
… methods of producing Hydrogen. These include electrolysis, which this work is based upon, and steam reforming; currently the most commercially viable method. The research herein investigates methods of producing ‘green’ Hydrogen more efficiently by using ultrasound (20 kHz) combined to …
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Feasibility study in using intelligent-materials to create actuators with muscle capabilities that can enhance prosthetics
… range of various materials; shape memory alloys, electro active polymers, piezoelectric ceramics and carbon nanotubes. A product design specification that described the material's fulfillment of specified design requirements was used to select one of the materials for further development. …
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Design, fabrication and characterisation of free-standing thick-film piezoelectric cantilevers for energy harvesting
… the areas of wireless technology and low power electronics. One of the mechanisms for converting mechanical vibration to electrical energy is the use of piezoelectric materials, typically operating as a cantilever in a bending mode, which generate a voltage across the electrodes when they are …
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Bucky gel actuator for morphing applications
… been exerted to develop novel applications for electro-active morphing materials. Three-layered bimorph nanocomposite has become an excellent candidate for morphing applications since it can be easily fabricated, operated in air, and driven with few volts. There has been limited published study …
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Soft matter engineering for cellular bioelectronic interfaces
… electrical and living systems, known as bioelectronics, can be leveraged to monitor and modulate biological functions. In partic- ular, investigation of electronic and ionic charge interactions at the individual cell level exposes singular behaviours otherwise obscured by an ensemble …
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Design And Characterization Of An Embedded Amperometric Analyzer For Field-Portable Electrochemical Applications
… adaptable, user friendly, and cost effective electrochemical detection in various application fields. Based on the new MSP430FG479 microcontroller, the embedded system was designed to either operate as a stand-alone unit with an on-board fool-proof user interface, or run on the user's PC for …
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Cytochrome c-DNA and cytochrome c-enzyme interactions for the construction of analytical signal chains
Electron transfer (ET) reactions play a crucial role in the metabolic pathways of all organisms. In biotechnological approaches, the redox properties of the protein cytochrome c (cyt c), which acts as an electron shuttle in the respiratory chain, was utilized to engineer ET chains on electrode …
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Multi-component protein films by layer-by-layer : assembly and electron transfer
Electron transfer phenomena in proteins represent one of the most common types of biochemical reactions. They play a central role in energy conversion pathways in living cells, and are crucial components in respiration and photosynthesis. These complex biochemical reaction cascades consist of a …
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Naturally Derived Biocompatible Photoinitiators for 3D Printing
… introduced to endow the resulting materials with electro-active behavior. Crosslinked with sodium acrylate, the 3D-printed designed objects can transform their shape in the indicated direction in an applied electric field. Considering the lack of natural water-soluble photoinitiators, the …
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Naturally Derived Biocompatible Photoinitiators for 3D Printing
… introduced to endow the resulting materials with electro-active behavior. Crosslinked with sodium acrylate, the 3D-printed designed objects can transform their shape in the indicated direction in an applied electric field. Considering the lack of natural water-soluble photoinitiators, the …
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The micro-optical ring electrode: Development of a novel thin ring based device for spectrophotoelectrochemistry and its application to the study of rose bengal
Electrochemists have at their disposal, for the study of photo- electrochemical systems, a range of sensors and devices such as rotating optical disc ring electrodes, optically transparent electrodes and optically transparent thin layer electrodes. A microelectrode is an electrode with at least one …
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