cylinder index

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• Cylinder set — In mathematics, a cylinder set is the natural open set of a product topology. Cylinder sets are particularly useful in providing the base of the natural topology of the product of a countable number of copies of a set. If V is a finite set, then… …   Wikipedia

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• Index of refraction — Refraction Re*frac tion (r?*fr?k sh?n), n. [F. r[ e]fraction.] 1. The act of refracting, or the state of being refracted. [1913 Webster] 2. The change in the direction of ray of light, heat, or the like, when it enters obliquely a medium of a… …   The Collaborative International Dictionary of English

• Gas cylinder — For the mechanical devices used to impart a force from a pressurized liquid or gas, see pneumatic cylinder. For the large structures used to store town gas, see gas holder. Industrial compressed gas cylinders used for oxy fuel welding and cutting …   Wikipedia

• Phonograph cylinder — Two Edison cylinder records (on either end) and their cardboard storage cartons (center) Phonograph cylinders were the earliest commercial medium for recording and reproducing sound. Commonly known simply as records in their era of greatest… …   Wikipedia

• Atiyah–Singer index theorem — In the mathematics of manifolds and differential operators, the Atiyah–Singer index theorem states that for an elliptic differential operator on a compact manifold, the analytical index (closely related to the dimension of the space of solutions) …   Wikipedia

• Pin Index Safety System — The Pin Index Safety System, or PISS, is a safety system that uses geometric features on the yoke to ensure that pneumatic connections between a gas cylinder and a machine that uses pressurized gases are not connected to the wrong gas yoke. This… …   Wikipedia

• Silt Density Index — The silt density index is a measure for the fouling capacity of water in reverse osmosis systems. SDI values below 5 result in low fouling rates. The Silt Density Index (SDI) test is used to determine the fouling potential of waterfeeding a… …   Wikipedia

• skelic index — ˈskelik noun Etymology: skelic from Greek skelos leg + English ic more at cylinder : an anthropometric index consisting of the ratio of the length of the leg to the length of the trunk multiplied by 100 * * * /skel ik/, Anthropometry. the ratio… …   Useful english dictionary

• Garage Logic — Garage Logic, commonly referred to as simply GL, is the name of a fictional city. It is the creation of Saint Paul Pioneer Press columnist, novelist, and radio talk show host Joe Soucheray, and is the basis for his syndicated broadcast of the… …   Wikipedia

• Corrective lens — A bifocal corrective eyeglass lens A pair of contact le …   Wikipedia