According to acoustic structure theory base,acoustic principle of multi-holes acoustextile and nonwovens characteristics,nonwovens acoustic theory are analysed in the paper.
Unlike the smooth sheets used in today's batteries, Addionics's offering has hills and valleys; like a " tiny egg carton" , says Moshiel Biton, the company's founder. It is also porous.
This can be done with humidified air attached to the tube, placing a humidifier or steam near the patient's bed or applying a wet porous gauze onto the tracheostomy tube, although the latter is considered a crude measure.
With a porous surface, like a piece of paper, the silicone polymers won't be able to form a barrier, and the dry erase ink will seep in, just like any other marker.
So, osteoporosis is when there's a higher breakdown of bone in comparison to the formation of new bone which results in porous bones, meaning a decrease in bone density to the point of potential fracture.