The ability to inject large numbers of small air bubbles throughout concrete mixers, to decrease bleeding, segregation, workability, and improve overall concrete quality, is known as an "air-entraining agent". Description An Air Training A…
Nanomaterials are widely used in cosmetics because of their unique optical, thermal and electromagnetic properties.…
surface plasmon is a new type of element excitation formed by the collective oscillation coupling of electromagnetic wave free electrons on metal surface. Its response is closely related to the optical properties of metal environmental medi…
Prices in the national electricity market averaged $87 per megawatt-hour in the first three months of the year, above the level promised by the federal government. Wholesale electricity prices for industry and large businesses have already exceeded t…