Byeong-Ju Kim

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User's varying posture incurs undesired measurement error on conventional BCG or non-restrictive ECG measurement system during real time measurement. In this paper, we present a novel UBPchair that embed BCG, nonrestrictive ECG, and the posture detection system within a single chair to overcome such problem. Through our evaluation result, we prove that our(More)
We address the critical issues raised in mobile healthcare monitoring and propose a new solution to resolve respective problem. This paper presents self-developed BCG monitoring, posture correction system and respective application. A 3-loadcell chair-type BCG system which allows continuous heart status monitoring and posture correction at the office and(More)
OBJECTIVES The aim of the present study was to compare the validity of the International Study of Asthma and Allergies in Childhood (ISAAC) written (WQ) and audiovisual questionnaires (AVQ 3.0) in two age-groups (10-12 and 13-15 years, respectively). METHODS The 13-15 year olds performed the self-completed the WQ and AVQ on the same day. The 10-12 year(More)
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