08-10-21
How Electric Motors Work How Electric Motors Work

    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…


Gratis
08-10-21
Medical gloves in the era of coronavirus disease 2019 pandemic Medical gloves in the era of…

    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  …


Gratis
08-10-21
Solvent Recovery Solvent Recovery

    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…


Gratis
08-10-21
Paper Machine Paper Machine

    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…


Gratis
08-10-21
Tubes and pipes in technical and everyday use Tubes and pipes in technical…

    Tubes and pipes in technical and everyday use     In the beginning was the hollowed-out tree trunk, one of the first capillary tube to be crafted by human hand. With a vast array of models in the plant world to inspire him, Homo sapiens had a much…

    Tubes and pipes in technical and everyday use     In the…


Gratis