**inner approach surface** — An imaginary rectangular portion of the approach surface immediately preceding the threshold … Aviation dictionary

**approach slope ratio** — The ratio of horizontal to vertical distance indicating the degree of inclination of the approach surface … Aviation dictionary

**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 second harmonic generation** — is a method for probing interfaces in atomic and molecular systems. In second harmonic generation (SHG), the light frequency is doubled, essentially converting two photons of the original beam of energy E into a single photon of energy 2 E as it… … Wikipedia

**Surface-mount technology** — (SMT) is a method for constructing electronic circuits in which the components (SMC, or Surface Mounted Components) are mounted directly onto the surface of printed circuit boards (PCBs). Electronic devices so made are called surface mount… … Wikipedia

**Surface metrology** — is the measuring of small scale features on surfaces, and is a branch of Metrology. Surface primary form, surface waviness and surface roughness are the parameters most commonly associated with the field. It is important to many disciplines and… … Wikipedia

**Surface Detail** — … Wikipedia

**Surface forces apparatus** — The surface force apparatus (SFA) is a scientific instrument and technique pioneered by D. Tabor, R.H.S. Winterton, J.N. Israelachvili in the early 1970s at Cambridge University. By the mid 70 s Israelachvili had adapted the original design to… … Wikipedia

**Surface integral** — In mathematics, a surface integral is a definite integral taken over a surface (which may be a curved set in space); it can be thought of as the double integral analog of the line integral. Given a surface, one may integrate over it scalar fields … Wikipedia

**Surface plasmon resonance** — The excitation of surface plasmons by light is denoted as a surface plasmon resonance (SPR) for planar surfaces or localized surface plasmon resonance (LSPR) for nanometer sized metallic structures.This phenomenon is the basis of many standard… … Wikipedia