control surface
21Surface runoff — Runoff flowing into a stormwater drain Surface runoff is the water flow that occurs when soil is infiltrated to full capacity and excess water from rain, meltwater, or other sources flows over the land. This is a major component of the water… …
22Surface Mining Control and Reclamation Act of 1977 — The Surface Mining Control and Reclamation Act of 1977 (SMCRA) is the primary federal law that regulates the environmental effects of coal mining in the United States.SMCRA created two programs: one for regulating active coal mines and a second… …
23Surface warfare — Modern naval warfare is divided into three operational areas: surface warfare, air warfare and submarine warfare. Each area is comprised of specialized platforms and strategies used to exploit tactical advantages unique and inherent to that area …
24Surface Warfare insignia — The Surface Warfare Insignia is a military badge of the United States Navy which is issued to those Naval personnel who are trained and qualified to perform duties aboard United States surface warships. The Surface Warfare Pin was first proposed… …
25Control city — This sign in Oklahoma City, Oklahoma lists control cities of Wichita, Kansas and Ft. Smith, Arkansas for Interstate 35 and Interstate 40 respectively. A control city is a city or locality posted on a traffic sign indicating forward destinations… …
26Control tower — The 109 meter tall control tower of Vienna International Airport, Austria. Inside the control tower at Misawa Air Base, Japan …
27Control zone — A control zone (CTR) is an aviation term that describes a volume of controlled airspace, normally around an airport, which extends from the surface to a specified upper limit, established to protect air traffic operating to and from that airport …
28Surface phonon — Phonons are collective lattice vibration modes, and surface phonons are those particular modes associated with surfaces; they are an artifact of periodicity, symmetry, and the termination of bulk crystal structure associated with the surface… …
29Surface plate — A surface plate is a solid, flat plate used as the main horizontal reference plane for precision inspection, marking out (layout), and tooling setup. The surface plate is often used as the baseline for all measurements to the workpiece, therefore …
30Surface 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… …
