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Black bags also exist, wherein the polyethylene is manufactured containing trace amounts of carbon, forming a partial shield, though not a complete one. [ 2 ] Conductive antistatic bags are manufactured with a layer of conductive metal, often aluminum, [ 3 ] and a dielectric layer of plastic [ 2 ] covered in a static dissipative coating.
For the neutralization of static charge in a larger area, such as a factory floor, semiconductor cleanroom or workshop, antistatic systems may utilize electron emission effects such as corona discharge or photoemission that introduce ions into the area that combine with and neutralize any electrically charged object. [4]
Conductive ESD bag with a network card inside ESD shoes. Electrostatic discharge materials (ESD materials) are plastics that reduce static electricity to protect against damage to electrostatic-sensitive devices (ESD) or to prevent the accidental ignition of flammable liquids or gases.
The Center for Wooden Boats (CWB) is a museum dedicated to preserving and documenting the maritime history of the Pacific Northwest area of the United States. CWB was founded by Dick Wagner in Seattle in the 1970s and has grown to include three sites; the South Lake Union campus in Lake Union Park, the Northlake Workshop & Warehouse at the north end of Lake Union, and The Center for Wooden ...
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Cold moulding is a composite method of wooden boat building that uses two or more layers of thin wood, called veneers, oriented in different directions, resulting in a strong monocoque structure, similar to a fibreglass hull but substantially lighter. Sometimes composed of a base layer of strip planking followed by multiple veneers.
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Strip-built, or "strip-plank epoxy", is a method of boat building. [1] Also known as cold molding, the strip-built method is commonly used for canoes and kayaks, but also suitable for larger boats. The process involves securing narrow, flexible strips of wood edge-to-edge around temporary formers.