periodic rating
81Online charging system — (OCS) is a system allowing a Communications service provider to charge their customers, in real time, based on service usage Contents 1 Architecture 1.1 Functions within the OCS 1.1.1 Online Charging Functions …
82Switzerland — Swiss redirects here. For other uses, see Swiss (disambiguation). Swiss Confederation redirects here. For Swiss Confederacy, see Old Swiss Confederacy. This article is about the country. For other uses, see Switzerland (disambiguation). Swiss… …
83Wildfire — This article is about uncontrolled outdoor fire. For the New York rock band, see Forest Fire (band). For other uses, see Wildfire (disambiguation). Crown Fire redirects here. For the 2010 wildfire in Southern California, see 2010 California… …
84Heat exchanger — An interchangeable plate heat exchanger Tubular heat exchan …
85Ultralight aviation — Ultralight redirects here. For the style of backpacking, see Ultralight backpacking. Ultralight aviation Huntair Pathfinder Mark 1 ultralight. The term ultralight aviation refers to light weight, 1 or 2 person airplanes., also called microlight… …
86Bearing (mechanical) — A bearing is a device to allow constrained relative motion between two or more parts, typically rotation or linear movement. Bearings may be classified broadly according to the motions they allow and according to their principle of operation as… …
87Bunt (baseball) — A Little League baseball player squares around to bunt. A bunt is a special type of offensive technique in baseball or fastpitch softball. In a bunt play, the batter loosely holds the bat in front of the plate and intentionally taps the ball into …
88Mark-to-market accounting — Accountancy Key concepts Accountant · Accounting period · Bookkeeping · Cash and accrual basis · Cash flow management · Chart of accounts  …
89Mercury Meltdown — Developer(s) Ignition Banbury Publisher(s) …
90Classification of mental disorders — Main article: Mental disorder Psychology …
