The US Constitution contains 7 articles: Article 1 deals with the Legislative branch; Article 2 is the executive branch; Article 3 is the Judicial branch; Article 4 is federalism; Article 5 is the Amendment process; and Article 6 is the supremacy clause. And the 7th article is the ratification of the Constitution.
Preparation of nanoparticles by Laser in Solution. Laser ablation is the process of removing material from a solid (or occasionally liquid) surface by irradiating it with a laser beam. At low laser flux, the material is heated by the absorbed laser energy and evaporates or sublimates. At high laser flux, the material is typically converted to a plasma.
Ablation. Ablation is removal of material from the surface of an object by vaporization, chipping, or other erosive processes. Examples of ablative materials are described below and include spacecraft material for ascent and atmospheric reentry, ice and snow in glaciology, biological tissues in medicine, and passive fire protection materials.