Nash Equilibrium is a term used in game theory to describe an equilibrium where each player's strategy is optimal given the strategies of all other players.
Retaining rings are circular fasteners that fit over shafts or inside cylindrical products such as pipe. There are two main types: internal and external. Internal retaining rings have a diameter specified for the bore and groove sizes they will fit into. External retaining rings, also known as retaining rings for shafts, have a diameter specified for the shaft and groove sizes it fits around. Both industrial retaining ring types, also known as a retaining clip, have a thickness dimension. Measurements will be expressed in inch or millimeters. Retaining ring material varies based on application. Stainless steel retaining rings are made from one of the most common ring materials.
Type 4: Self-Ligating Braces. Similar to traditional metal and ceramic braces, self-ligating braces make use of the bracket and wire system. This may be the type of braces that most orthodontist use today, but many still use a more traditional system. This type of braces uses brackets with clips or doors that hold on to the wire, instead of the rubber band tie system. These braces are supposed to hold on to less food and be less painful than other types of braces, and they are also supposed to reduce the number of trips to the orthodontist the patient has to make.