A family of new mechanical presses is invented. This type of presess is programmable (including its stroke, speed and acceleration) and energy-efficient (it uses a flywheel to ease the peak energy). Mechanically, it is a 2 degree-of-freedom punching mechanism driven by two different motors (a commo.....
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An apparatus for the measurement of photoplethysmograph (PPG) using ambient light as the light source, whose characteristic is that the light source is not embedded in the apparatus. Photoplethysmograph reflects the changes in the blood volume in the human peripherals. It can be applied to the noni.....
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Nasopharyngeal carcinoma (NPC) is one the commonest cancers in Hong Kong and South China. The gold standard for diagnosing NPC is by endoscopic examination of the nasopharynx, together with the histological examination of nasopharyngeal biopsies. However, these examinations are costly, labour-inte.....
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