1,721,130 research outputs found
User Activity Related Data Sets for Context Recognition
Full text linkAbstract. The use of body-worn sensors for recognizing a person’s context has gained much popularity recently. For the development of suitable context recognition approaches and their evaluation, real-world data is essential. In this paper, we present two data sets which we recorded to evaluate the usefulness of sensors and to develop, test and improve our recognition strategies with respect to two specific recognition tasks
Automated Bus Generation for Multiprocessor SoC Design
No full textDedicated to my wife, Hyejung Hyeon, my parents, and my parents-in-law iii ACKNOWLEDGMENTS This work could have not been finished without the support and sacrifice of many people I had to express my gratitude. First of all, I would like to deeply thank my adviser Vincent J. Mooney III. He has supported and encouraged me to develop my dissertation with his enthusiasm and professionalism throughout all stages of my Ph.D. program. He has been a great source of ideas and provided me with invaluable feedback. In addition, Dr. Mooney has been helping me improve my English skills with his consideration. I would also like to extend my appreciation to Dr. Jeffrey Davis, Dr. Sudhakar Yalamanchili, Dr. Paul Benkeser, and Dr. Thad Starner for serving on the committee and offering constructive comments. I have to thank all Hardware/Software Codesign group members for their helps and friendship. It is obvious that, without many helps by them, my long journey a
Augmenting a pH Medical Study with Wearable Video for Treatment of GERD
No full textIn this paper we present an augmentation to the wearable computers typically used to determine if a patient is a candidate for surgery to correct problems associated with Gastroesophageal Reflux Disease (GERD). A wearable camera was used by the first author while participating in a 24–hour stomach acid pH study. After the study’s conclusion, an examination of the captured video and pH record revealed some results that allowed the first author to avoid many of the activities that result in symptoms related to GERD. 1 GERD and Medical Testing Gastroesophageal Reflux Disease is a medical condition that affects 2 % of the adult population of the United States. GERD refers to the reflux of stomach acid into the esophagus and can lead to complications such as esophageal cancer and lung damage. The most common symptom of GERD is heartburn. Typical treatments for GERD include diet modification and medication; however, for some patients these treatments may prove ineffective, and the patient may be evaluated for more drastic measures such as surgery. If surgery to correct GERD is considered an option, the patient usually undergoes a 24 – or 48–hour pH study to measure the percentage of time that the patient is in reflux during normal daily activities. In the 24–hour study, a pH probe is inserted into the subject’s nose and lowered through the esophagus to a position above the stomach. Since the probe is attached to a line that is retained in the patient’s nose and throat, several pH sensors can be placed at varying locations along the patient’s esophagus. The probe is attached to a wearable computer which records the patient’s pH levels for 24 hours. The patient typically uses the wearable computer to record times of meals, periods spent in a supine position (e.g. sleeping), and occurrences of symptoms. The first author suffered from severe and relatively un
Human Powered Wearable Computing
No full textBatteries add size, weight, and inconvenience to present day mobile computers. This paper explores the possibility of harnessing the energy expended during the user's everyday actions to generate power for his computer, thus eliminating the impediment of batteries. An analysis of power generation through leg motion is presented in depth, and a survey of less practical methods such as generation by breath or blood pressure, body heat, and finger and limb motion is also presented. 1 Introduction Wearable computing is an effort to make computers truly part of our everyday lives by embedding them into our clothing (e.g. shoes) or by creating form factors that can be used like clothing (e.g. sunglasses) [28]. This level of access to computation will revolutionize how computers are used. While the computational hardware has been reduced in size to accommodate this vision, power systems are still bulky and inconvenient. Even today's laptops and PDA's are often limited by battery capacity, ou..
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