Thesis (Ph. D.)--University of Toronto, 2005.

Techn. Hochsch., Diss.--Zürich, 2005.

No description available.

"Ultrasound imaging is a safe and powerful tool for providing detailed still and moving images of the human body. Most of today’s ultrasound systems are housed on a movable cart and designed for use within a clinical setting, such as in a hospital or doctor’s office. This configuration hinders its use in locations lacking controlled environments and stable power sources. Example locations include ambulances, disaster sights, war zones and rural medicine. A wearable ultrasound system, in the form of a vest worn by a sonographer, has been developed as a complete solution for performing untethered ultrasound examinations. The heart of the system is an enclosure containing an embedded computer running the Windows XP operating system, and a custom power supply. The power supply integrates a battery charger, a switching regulator, two linear regulators, a variable speed fan controller and a microcontroller providing an interface for monitoring and control to the embedded computer. Operation of the system is generally accomplished through the use of voice commands, but it may also be operated using a hand-held mouse. It is capable of operating for a full day, using two batteries contained in the vest. In addition, the system has the capability to wirelessly share live images with remote viewers in real-time, while also permitting full duplex voice communication. An integrated web-server also provides for the wireless retrieval of stored images, image loops and other information using a web-browser. "

This project takes the portrayal of memory in wearable jewellery and jewellery object making in two directions. The relationship between memory and the experiences it represents is revealed within the singular jewellery object through structural, iconographical, or material relationships among elements of the object. Reinterpretations of the original primary jewellery object result in series of jewellery objects and wearable jewellery that express ideas about the altering of memory. Jewellery objects with removable wearable jewellery components act as memory models, revealing ideas about memory processes through the relationships among their elements. The juxtaposition of soft and hard materials is used as a metaphor of memory. The result of the project is a body of work consisting of wearable jewellery and jewellery objects1 which manifest ideas about memory; specifically, the relationship between memory and the experiences it represents. The work draws on traditions in the gold- and silversmithing field of creating objects to be used as signifiers of memories3 and mnemonic devices. The primary aim of the project is not to create direct representations of personal memories or collections of found objects that represent cultural histories. Instead, the work engages in a visual and tactile exploration of memory itself: the processes of remembering experiences and the alteration of memory over time. Series of jewellery objects and wearable jewellery reveal ideas about the relationship between memory and experience both within singular objects and among altered objects in series.

Zugl.: Bremen, Univ., Diss., 2007

Thesis--PlanA (M.S.)--University of Wisconsin--Stout, 2000. / Design option. Includes bibliographical references.

Diss. Universität Bremen, 2007.

Wearable antennas and electronics technology rapidly grows the last decades and leads to a future where smart textiles will be integrated into our garments. However the wearable technology research includes unsolved or of different approach challenges. This thesis deals with challenges regarding wearable antenna characterization and measurements, textile antennas feeding and textile transmission lines interconnecting. Regarding the wearable antenna characterization and measurements, a novel design of a liquid torso phantom and a new methodology for evaluating wearable antenna performance by using the cylindrical near field measurement technique are proposed. As for the textile antennas and transmission lines feeding and interconnecting, two novel methods are proposed.

Wearable devices, which track a subject’s activity (e.g. steps, calories, intensity) over time, have become a popular option for research studies which seek to better understand an individual’s physical activity in the day-to-day setting. This thesis looks to address three common problems within the wearable device setting; how to address missing data and incomplete wear time, what to do when large outlying values are present, and how many observation days are required to reasonably estimate various activity metrics of interest. Given the dense nature of observations from such devices, functional data analysis (FDA) provides a natural framework for analysis, and we seek to address the first problem related to missing data by leveraging generalized functional principal components analysis (GFPCA). In addressing the second problem related to outlying values, we leverage both FDA and the novel principal component pursuit (PCP) approach, which has seen limited application within the field, to separate on observed functional value into low-rank, sparse, and error component functions. Finally, using a rich longitudinal data set, we provide insight into the third problem regarding what is an appropriate study length, utilizing the framework of measurement reliability which has been often applied in the activity data setting. Our results suggest that leveraging FDA methods can provide more accurate estimates of activity during periods of nonwear then current approaches, and that in the presence of large outliers more robust estimates of underlying activity and outlier presence can be determined by combining FDA methods and those of PCP. Finally, within our longitudinal cohort we show that current guidelines regarding the number of days necessary to achieve a reasonable measurement reliability are inaccurate, and often underestimate the true number of days required.