Design and validation of wearable wireless sensors

Title from PDF of title page, viewed on March 14, 2013Dissertation advisor: W. Daniel Leon-SalasVitaIncludes bibliographic references (p. 102-[113])Thesis (Ph.D.)--School of Computing and Engineering. University of Missouri--Kansas City, 2012Recent years have seen an increase in research and development efforts towards wearable and implantable health monitoring systems. Such systems are needed to provide real-time information about patients to physicians, care-givers, emergency personnel and relatives. The challenge lies in their designing as they need to satisfy a variety of criteria and constraints. These include small weight and size, low power consumption, easy to use, and should be aesthetically pleasing. Advances in semiconductor fabrication have made commercially available highly integrated systems-on-chip (SOC) which are being exploited to develop such systems. Use of these SOCs reduces cost and development time. This dissertation presents system prototypes that can capture human body motion, measure strain on bones and perform electromyography (EMG). Design of these systems is centered on ultra-low power microcontrollers and other required circuit components. We present in detail their design, functionality and compare our results with present solutions.Introduction -- A wearable motion tracker -- Bone strain measuring telemetry units -- Wireless surface electromyography (EMG) sensor -- Conclusion

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Over the years, several forms of energy resources have been used for a variety of purposes; however, the over use of energy supplies has resulted in a variety of problems. Renewable energy sources are an excellent approach for addressing these challenges. In recent years, it has become possible to modify photoelectrochemical cells with titanium dioxide, cadmium sulfide, and graphitic nitride to create clean hydrogen. It has been discovered that the doping method enhances the photocatalytic activity of the catalyst. Metal-oxide nanoparticles are common dopants; one example of this is iron-doped TiO2, which exhibits remarkable quantum efficiency due to the presence of iron. Nanomaterials with excellent crystallinity, three-dimensional structure, and tiny size are needed for obtaining high photocatalytic efficiency. The focus of the current research is on clean fuel production (hydrogen synthesis) using a doped titanium dioxide photocatalyst. In addition to clean fuel generation, attention is being paid to the development of titanium dioxide doping technologies and the doping of titanium dioxide. Experimental manufacturing approaches have been investigated to achieve this goal. Both theoretical (computational) and experimental methodologies have been discussed that aid in reducing band gap of pure Anatase TiO2 and may help in achieving better photocatalytic water splitting (PWS) for hydrogen production