Complex anthropomorphic robotic hands with small link lengths and large number of degrees of freedom pose a unique challenge for calibration. The problem is interesting because the small magnitude of joint motion produced by small robots are difficult to capture by external sensors such as motion tracking systems. There is a need for a simple yet effective solution to this problem. In this pape...

This paper describes our experimental and analytical study of recovering index finger pose from tip trajectory during palmar grasp. Our study experimentally evaluates a kinematical model that can be used to reduce the number of surface markers in each finger for motion estimation and its segmental kinematics. We captured the trajectory of the index finger tip and joint angles in typical fist cl...

Papers published in Hydrology and Earth System Sciences Discussions are under open-access review for the journal Hydrology and Earth System Sciences Abstract Water infiltration into coarse textured dry porous media becomes instable depending on flow conditions characterized through dimensionless quantities, i.e. the Bond number and the Capillary number. Instable infiltration fronts break into f...

Digital nerve block is a commonly used regional anaesthetic technique, often performed in the accident and emergency (A&E) department. It is a safe and eVective technique that has been shown to have few complications. When lignocaine (lidocaine) is used, the digit will be anaesthetised for approximately 45 minutes to one hour, which is adequate anaesthetic time for most procedures undertaken in...

An attempt was made to analyze differences in the results obtained by various kinds of finger plethysmography, such as penetration photo-electric plethysmograph (penet.-PTG), reflexion photo-electric PTG (refl.-PTG), mechanoelectric PTG (pneumo-PTG and hydro-PTG) and impedance PTG, by taking simultaneous recordings principally from the same finger tip. Comparisons of the time course (onset time...

We report measurements of two dimensional radial fingering in viscoelastic concentrated suspensions (pastes) of colloidal particles, in small surface tension conditions. The displacement efficiency, the average finger width and the fractal dimension for growth have been measured in a broad range of paste viscosity and driving pressure. The growth process appears to be fractal in all the experim...