"In my last article, I think the supply chain increased the spread of the COVID-19 pandemic. I proposed the idea of ??establishing a regional manufacturing center to minimize the huge supply chain and encourage local innovation to meet The different needs of these regions. I think I need to go further. The localization ability to deal with the crisis. Obviously, there is a huge benefit to expanding production capacity during economic stability and crisis. When you know that you will produce…

With the new outbreak of H1N1 flu in spring 2009 and the expected second wave of flu outbreaks in the 2009-2010 flu season, there has been great interest in using surgical masks (masks) and respirators as infection control measures. "Although their appearance is usually similar, compared with surgical masks, respirators have significantly different functions in design and engineering. The reduced exposure of respirators and surgical masks is different. National Institute of Occupational…