Certificate awarded to Xiaofei Teng (postgraduate student at the Joint Research Center for Biomedical Engineering) in the IEEE-EMBS 2003.

Title:
Continuous and Noninvasive Estimation of Arterial Blood Pressure Using a Photoplethysmographic Approach

Author:
X. F. Teng and Y. T. Zhang

Abstract:
Arterial blood pressure is one of the most important physiological parameters for the noninvasive diagnosis and monitoring of cardiovascular diseases. This study examines the relationships between arterial blood pressure and certain features of the photoplethysmographic (PPG) signals obtained from 15 young healthy subjects. Width of 1/2 pulse amplitude, width of 2/3 pulse amplitude, systolic upstroke time and diastolic time of the pulse were selected as featuresof the PPG signals. The experiment involved three sessions: rest, step-climbing exercise, and recovery from exercise. It was found that the diastolic time has higher correlation with systolic blood pressure (SBP) and diastolic blood pressure (DBP) than other features. The mean differences between the estimated and the measured blood pressure using a standard device are 0.21 mmHg for SBP and 0.02 mmHg for DBP. The corresponding standard deviations are 7.32 mmHg for SBP and 4.39 mmHg for DBP. The preliminary results indicate that it is possible to use the photoplethysmography only for cuffless and continuous estimation of arterial blood pressure.

"IEEE Hong Kong Section (Electronics) Prize" in the Regional Inter-University Postgraduate Electrical and Electronic Engineering Conference (RIUPEEEC 2003). Paper Title: "IBS Synthesis and Characterization of CoPt-SiO2 and FePt-SiO2 Nanocomposite Films"

Best paper award in the 8th OptoElectronics and Communications Conference(OECC'2003) Paper Title: "Magnettostrictive Polarization Compensation on SOI Rib Waveguide"

Chan Wai Nang (middle) and Kwong Pak Yin (left) received the award and certificate in the MMCDC 2003 award ceremony on 27 August 2003.

Content:
Chan Wai Nang and Kwong Pak Yin, who are currently final year students of our department, received the award of "Honourable Mention" in the 2003 Mobile Multimedia Communications Design Contest (MMCDC). Their project is titled "Mobile Tour Guide (MTG)". The project was nominated and advised by Prof. Lee Tan.

MMCDC is organised by the Hong Kong Institution of Engineers (HKIE), with the aim to encourage and reward innovative local university students who explore beyond the boundaries of wireless, Internet and the converging mobile multimedia technologies. More than 30 teams participated in the contest. Only 5 of them were selected for awards.