High energy X-rays — or HEX rays are very hard X rays, with 80 keV 1000 keV typically one order of magnitude higher in energy than conventional X rays (and well into the gamma ray energies of over 120 keV). They are produced at modern synchrotron radiation sources… … Wikipedia
High Energy Stereoscopic System — 23° 16′ 00″ S 16° 30′ 00″ E / 23.2667, 16.5 … Wikipédia en Français
Reflection high energy electron diffraction — (RHEED) is a technique used to characterize the surface of crystalline materials. RHEED systems gather information only from the surface layer of the sample, which distinguishes RHEED from other materials characterization methods that rely also… … Wikipedia
High Power Impulse Magnetron Sputtering — (HIPIMS, also known as High Impact Power Magnetron Sputtering and High Power Pulsed Magnetron Sputtering, HPPMS) is a method for physical vapor deposition of thin films which is based on magnetron sputter deposition. HIPIMS utilises extremely… … Wikipedia
Surface exposure dating — is a collection of geochronological techniques for estimating the length of time that a rock has been exposed at or near Earth s surface. Surface exposure dating is used to date glacial advances and retreats, erosion history, lava flows,… … Wikipedia
surface analysis — ▪ chemistry Introduction in analytical chemistry (chemistry), the study of that part of a solid that is in contact with a gas or a vacuum. When two phases of matter are in contact, they form an interface. The term surface is usually… … Universalium
Surface energy — [ Contact angle measurements can be used to determine the surface energy of a material. Here, a drop of water on glass.] Surface energy quantifies the disruption of intermolecular bonds that occurs when a surface is created. In the physics of… … Wikipedia
Surface area to volume ratio — In chemical reactions involving a solid material, the surface area to volume ratio is an important factor for the reactivity, that is, the rate at which the chemical reaction will proceed. In some industries it is abbreviated sa/vol.Physical… … Wikipedia
Energy — This article is about the scalar physical quantity. For other uses, see Energy (disambiguation). Energetic redirects here. For other uses, see Energetic (disambiguation) … Wikipedia
High Resolution Fly's Eye Cosmic Ray Detector — The High Resolution Fly s Eye or HiRes detector was an ultra high energy cosmic ray observatory that operated in the western Utah desert from May 1997 until April 2006. HiRes utilized the atmospheric fluorescence technique that was pioneered by… … Wikipedia