• 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 many electric motors are there in the room with you right now? There are probably two in you…Read more

  • 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) usually reserved for health care workers (HCWs) has spread to the general population, sometimes indiscriminately. As a result, medical glove stock has been…Read more

  • 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 requires little change in existing processes. There is widespread commercial availability of so…Read more

  • 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 sensitivity, reduces dimensional changes and raises air leak density of the sheet. In…Read more

  • 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 easier job inventing the tube than the wheel for which, by contrast, nature had no example to…Read more

  • A visit to a kitchen showroom nowadays will show you a dazzling array of quartz countertop designs and patterns that remarkably mimic real marble and other natural stone. But quartz has come a long way! First appearing in Italy in the 1960s, these countertops were developed—by combining ground quartz particles with resins into a slab—as an…Read more

  • USB Power Delivery is the fastest way to charge iPhone and Android devices

    With the current generation of smartphones and their much faster processors and vivid, high-resolution displays, and always-on connectivity, demands on battery performance are now higher than ever.

    You may have noticed that, while you are on the road,…Read more

  • Aside from that, it has a decent recline, can withstand frames of up to 330 lbs, and has fully adjustable wrist-rests. It's heavy but glides pretty easily on the supplied casters. It'll look just fine in both an office or gaming setup, so you're getting a chair that can do both. Not bad, if you can afford it.

    Corsair's latest addition…Read more

  • One general disadvantage that all heat preservation gear pump share over some other positive-displacement pump styles – vane pumps, for instance – is their inability to provide a variable flow rate at a given input speed. Where this is a requirement, a work-around is to use drives capable of speed control, though this is not always a pra…Read more

  • Hydrogels have been widely used for various biomedical and pharmaceutical applications due to their biocompatibility, high water content and rubbery nature, which resemble natural tissue. Polyethylene glycol (PEG) crosslinked poly(methyl diethylene glycol monovinyl ether and maleic acid) (PMVE/MA) hydrogel is widely studied as a vehicle for…Read more

  • The collection is largely from the Hadda monasteries located in northwestern Afghanistan, near the modern-day city of Jalalabad. The region’s warm climate fosters citrus and pomegranate trees and helped it blossom as a center of trade on the Silk Road for centuries—thus its art influenced by both East and West.

    ‘The big puzzl…Read more

  • For more information on RENAULT fuel injector systems and other automotive topics, check out the links on the next page.

    The call for reduction in pollution has been mandated by government′s policies worldwide. This challenges the engine manufacturer to strike an optimum between engine performance and emissions. However with growing t…Read more