The ability to signal individual identity using vocal signals and distinguish between conspecifics based on vocal cues is important in several mammal species. Furthermore, it can be important for receivers to differentiate between callers in reproductive contexts. In this study, we used acoustic analyses to determine whether male koala bellows are individually distinctive and to investigate the...

I. How Tuner Works The B-cell superconducting cavity is tuned by mechanically stretching the cavity along the beam line relative to the cryostat. The drive train consists of a stepping motor followed by a 4.38:1 dual leverage mechanism terminating in a dual parallel flex hinge arrangement (tuner flexure) with mechanical advantage of 3.9:1. The flexure is patterned after the proposed LANL PILAC ...

with the base and a membrane hinge is cemnented on (C). A writing lever (not shown in the illustration) is attached to the top surface. The bellows is now made ready for use by smearing generously a layer of paraffin oil on the membrane, thus not only sealing any microscopic holes, but rendering it more flexible. These bellows may be made of any volume capacity to fulfil a particular conadition...

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...