Tune shift with amplitude of the system. When the tune reaches resonant values, it can be unstable, and thus a tune-shift with amplitude can limit the stability region, or dynamic aperture. In classical mechanics, a simple example of a system with tune shift with amplitude is a pendulum. In accelerator physics, both the transverse and the longitudinal dynamics show tune shift with amplitude. A simple model of the transverse dynamics is of an oscillator with a single sextupole, it is referred to as the Hénon map. Another model for this case is the Standard Map. An important example is the typical case of distributed
Greater Netherlands either within the Netherlands or as independent state with strong links with the Netherlands. Many Orangists are Greater Dutch and vice versa, but not all Greater Dutch are monarchist Orangists, as some want to structure the state differently. Orangism has become more popular since 1980, when the term was used to refer to the Greater Netherlands projects, with a focus on the restoration of the Dutch royal family to the entire Dutch-populated part of the region. The popularity of the House of Orange-Nassau in Flanders is partly based on the francophile tendency of the Belgian monarchy. Contemporary Orangism in Flanders