This paper proposes a method to monitor and assess human performance specific to high-speed marine craft operation. The high-speed craft crew’s ability to efficiently perform their allotted tasks is affected by the manner in which the vessel responds to the variable sea conditions. In general, the reaction of human body to high-speed boat motion and vibration is recognized as the main cause of ...

We newly proposed the "Cell Vibro-Deformability" where cell frequency characteristics is observed by moving a single cell in microchannel periodically, with an assistance of both an online high speed camera and piezoelectric actuator. The developed system composed of a high speed pump, and an online high speed vision, and a microfluidic chip. Through experiments by using red blood cell, we obta...

The purpose of this study was to compare the stroke characteristics of sprint kayakers in team boat (K2) versus individual (K1) 200-m racing. This case study centred on two male 200-m specialists from a national sprint kayak team. High-speed (120 Hz) videos were recorded from the sagittal view during an important selection time trial. Thereafter, video analysis was performed to identify stroke ...

Wave-propelled boats utilize submerged flapping foils to convert wave energy directly into propulsion. For platforms that are solely propelled using foils, predicting the forward speed is challenging as it time varying and dependent on coupled responses of wave-induced hull motions (surge, heave, pitch) foil motion (driven by incident wavy flow). To ascertain free-running response wave-propelle...

The present study is part of a global project which consists in the development of an automatic cleaning station for immersed boats (cockle, ninepin, etc.) in a self-service mode, associating an innovative ultrasonic device for cleaning with a specific water treatment. The originality of the process is that cleaning is performed by three transducers operating simultaneously at low frequency and...