Anybody can develop high frequency hearing loss, but it becomes more common with age. Exposure to loud sounds or high frequency sounds are common causes of ear damage in younger people.

Double-sided models are a smart choice for high-traffic and noisy areas, and weatherproof materials like rubber or silicone ...

State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China ...

Demand for silicone in medical, automotive and construction continues to be high, and supply continues to match demand for the $21.5 billion global market that is expected to grow at between 7 and 8 ...