One method of reducing the voltage required to initiate breakdown is to generate seed electrons into the discharge region.
In this work, the seeding of metal nanoparticles was shown to reduce the voltage required to initiate breakdown in an air DC microdischarge.
Sand and dust with particle sizes above several tens of microns were shown to initiate breakdown across gap lengths of several centimeters [18,19].
Female hormones mediate biochemical changes within the TMJ bilaminar tissues causing hyperplasia of the synovial tissues that initiate breakdown of the ligamentous structures that normally support and stabilize the articular disc in position.
However in atmospheric air, even with a small inter-electrode separation of less than 1 mm, a sizeable voltage (upwards of 4 to 5 kV) may still be required to initiate breakdown.
It is well known that the voltage required to initiate breakdown of a gaseous DC discharge depends strongly on the pressure P multiplied by the distance D of the gap between the electrodes, PD, as described by Paschen's Law [2].
For the first time, these data demonstrate that tau alone can initiate breakdown of the BBB, but the BBB is remarkably resilient, maintaining its integrity in the face of marked brain atrophy, neuroinflammation and toxic tau accumulation.
This leads to an increased load at the acetabular rim, and may initiate breakdown of the cartilage or labrum; eventually symptomatic osteoarthritis may develop (Cooperman et al. 1983, Murphy et al. 1995, Jacobsen and Sonne-Holm 2005).
Pt/CFO-RT/Pt did not show resistive switching, presumably due to the very high initial resistance to initiate soft breakdown inside the film.
In response to angiogenic stimuli, endothelial proteases initiate the breakdown of the surrounding extracellular matrix, which allows the migration of proliferating endothelial cells and their growth to form lumens.
Moreover it is a process which, while it owes its development principally to the growth of travel both within and from outside Australia, can trace its origins back to the 1956 Olympic games in Melbourne.That year, for the first time, significant numbers of young, predominantly French chefs arrived to cook and, unwittingly, to initiate the breakdown of Australia's gastronomic isolation.
