We present a high efficiency wireless MEMS electrochemical bellows actuator capable of rapid and repeatable delivery of boluses for fluid metering and drug delivery applications. Nafion®-coated Pt electrodes were combined with Parylene bellows filled with DI water to form the electrolysis-based actuator. The performance of actuators with several bellows configurations was compared for a range o...

A pneumatic indentation system using a copper bellows has been developed for physiological studies where a controlled uniaxial compressive force is required to be applied to the surface of the skin. Such a system is useful for studies where the physiological response of the tissues is to be monitored following a known loading history. The indentation system is driven by a vacuum/compression pne...

The use of auditory data visualization techniques was useful for distinguishing voiceless bellows of a rabid cow from the bellows of estrus-oriented cows, because rabid cows created two distinct sounds with a very short silence between inhalation and exhalation of the respiratory cycle. The auditory visualization techniques as a diagnostic tool may have the potential to serve as a basis for an ...

In this work we present a novel, inductance-based system to measure and control the motion of bellows-driven continuum joints in soft robots. The sensing system relies on coils of wire wrapped around the minor diameters of each bellows on the joint. As the bellows extend, these coils of wire become more distant, decreasing their mutual inductance. Measuring this change in mutual inductance allo...

Cauchy’s rigidity theorem states: If P and P’ are combinatorially equivalent convex polyhedra such that the corresponding facets of P and P’ are congruent, then P and P’ are congruent polyhedra. For many years it was unknown whether the same theorem was true in general for non-convex polyhedron. In 1977, more than 160 years after the work of Cauchy, Robert Connelly discovered a polyhedron P (wi...

Piping systems are a representative social infrastructure to provide oil, gas, and water. Damage piping may cause serious consequences, such as fire, water outage, environmental pollution. Therefore, need be protected from natural disasters, earthquakes. Earthquakes deformation that exceeds design criteria. For example, large relative displacements liquefaction of the ground resulting in loss s...

Work of breathing necessary to trigger a ventilator (WOBtr) was calculated during pressure support ventilation (PSV), and the effect of bias flow on WOBtr was evaluated. A spring-loaded bellows type lung model with two bellows placed in series was used to simulate spontaneous breathing. A Venturi mechanism of jet flow generated subatmospheric pressure inside the diaphragm bellows simulated insp...

Determining the information content of animal vocalisations can give valuable insights into the potential functions of vocal signals. The source-filter theory of vocal production allows researchers to examine the information content of mammal vocalisations by linking variation in acoustic features with variation in relevant physical characteristics of the caller. Here I used a source-filter the...

Determining the information content of vocal signals and understanding morphological modifications of vocal anatomy are key steps towards revealing the selection pressures acting on a given species' vocal communication system. Here, we used a combination of acoustic and anatomical data to investigate whether male koala bellows provide reliable information on the caller's body size, and to confi...

Abstract This paper discusses a pressure control and monitoring system to improve the reliability of borehole extraction processes. Borehole processes can quality high-viscosity oil stimulation also be used in biofuel production by providing necessary performance. is based on bellows-type device capable withstanding high pressures. The presented has number advantages compared with counterparts:...