a brief history of blood collection systems and devices
Before the modern vacuum tube, blood collection tubes and other devices were difficult and imprecise. Etched lines in borosilicate glass tubes reflected the amount of blood the phlebotomist…
a brief history of blood collection systems and devices
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How Electric Motors Work
Flick a switch and get instant power—how our ancestors would have loved electric motors! You can find them in everything from electric trains to remote-controlled cars—and you might be surprised how common they are. How…
How Electric Motors Work
Flick a switch and get instant…
Medical gloves in the era of coronavirus disease 2019 pandemic
The current coronavirus 2019 disease (COVID-19) pandemic has greatly changed our perspective of the risk for infection from contact, and the use of personal protective devices (PPDs)…
Medical gloves in the era of coronavirus disease 2019 pandemic
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Solvent Recovery
Solvent recovery is a form of waste reduction. In–process solvent recovery still is widely used as an alternative to solvent replacement to reduce waste generation. It is attractive, like end–of–pipe pollution control, since it…
Solvent Recovery
Solvent recovery is a form of waste reduction.…
Paper Machine
On the paper machine, the size press is used to apply surface size to dried paper.182,183 Starch is the most frequently used binder in surface sizing. Besides raising surface strength, starch also imparts stiffness, lowers water…
Paper Machine
On the paper machine, the size press is used…
