perpendicular of a surface

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• Surface enhanced Raman spectroscopy — Surface Enhanced Raman Spectroscopy, or Surface Enhanced Raman Scattering, often abbreviated SERS, is a surface sensitive technique that results in the enhancement of Raman scattering by molecules adsorbed on rough metal surfaces. The enhancement …   Wikipedia

• Surface normal — Normal vector redirects here. For a normalized vector, or vector of length one, see unit vector. A polygon and two of its normal vectors …   Wikipedia

• Surface selection rule — In surface vibrational spectroscopy, the surface selection rule is applied to identify the peaks observed in vibrational spectra. When a molecule is adsorbed on a substrate, the molecule induces opposite image charges in the substrate. The dipole …   Wikipedia

• perpendicular — [[t]pɜ͟ː(r)pəndɪ̱kjʊlə(r)[/t]] 1) ADJ GRADED: usu ADJ n A perpendicular line or surface points straight up, rather than being sloping or horizontal. We made two slits for the eyes and a perpendicular line for the nose... The sides of the loch are …   English dictionary

• Surface-wave-sustained mode — Plasmas that are excited by propagation of electromagnetic surface waves are called surface wave sustained. Surface wave plasma sources can be divided into two groups depending upon whether the plasma generates part of its own waveguide by… …   Wikipedia

• Perpendicular recording — (or Perpendicular Magnetic Recording, PMR) is a technology for data recording on hard disks. It was first proven advantageous in 1976 by Shun ichi Iwasaki, then professor of the Tohoku University in Japan, and first commercially implemented in… …   Wikipedia

• Perpendicular — Per pen*dic u*lar, a. [L. perpendicularis, perpendicularius: cf. F. perpendiculaire. See {Perpendicle}, {Pension}.] 1. Exactly upright or vertical; pointing to the zenith; at right angles to the plane of the horizon; extending in a right line… …   The Collaborative International Dictionary of English

• Perpendicular style — Perpendicular Per pen*dic u*lar, a. [L. perpendicularis, perpendicularius: cf. F. perpendiculaire. See {Perpendicle}, {Pension}.] 1. Exactly upright or vertical; pointing to the zenith; at right angles to the plane of the horizon; extending in a… …   The Collaborative International Dictionary of English

• perpendicular — ► ADJECTIVE 1) at an angle of 90° to a given line, plane, or surface. 2) at an angle of 90° to the ground; vertical. 3) (Perpendicular) of the latest stage of English Gothic church architecture (late 14th to mid 16th centuries), characterized by… …   English terms dictionary

• Surface mining — is a type of mining in which soil and rock overlying the mineral deposit are removed. It is the opposite of underground mining, in which the overlying rock is left in place, and the mineral removed through shafts or tunnels. Surface mining is… …   Wikipedia

• Surface force — denoted fs is the force that acts across an internal or external surface element in a material body. Surface force can be decomposed in to two perpendicular components: pressure and stress forces.Pressure force acts normally over an area and… …   Wikipedia