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Schematic diagram of the chromo-modal dispersion device. Light is incident upon two parallel plane gratings, which disperse and collimate the optical spectrum. Angular dispersion is then applied to the spectrum using a lens.
Instead of requiring user experience (UX) developers to write GUI code, they can use the framework markup language (e.g. XAML) and create data bindings to the view model, which is written and maintained by application developers. The separation of roles allows interactive designers to focus on UX needs rather than programming of business logic.
A good way to estimate the lowest modal vector (), that generally works well for most structures (even though is not guaranteed), is to assume () equal to the static displacement from an applied force that has the same relative distribution of the diagonal mass matrix terms. The latter can be elucidated by the following 3-DOF example.
Since that refractive index varies with wavelength, it follows that the angle that the light is refracted by will also vary with wavelength, causing an angular separation of the colors known as angular dispersion. For visible light, refraction indices n of most transparent materials (e.g., air, glasses) decrease with increasing wavelength λ:
where = is called the damping ratio of the system, = is the natural angular frequency of the undamped system (when c=0) and = is the angular frequency when damping effect is taken into account (when ).
Vibration (from Latin vibrāre 'to shake') is a mechanical phenomenon whereby oscillations occur about an equilibrium point.Vibration may be deterministic if the oscillations can be characterised precisely (e.g. the periodic motion of a pendulum), or random if the oscillations can only be analysed statistically (e.g. the movement of a tire on a gravel road).
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A modal analysis calculates the frequency modes or natural frequencies of a given system, but not necessarily its full-time history response to a given input. The natural frequency of a system is dependent only on the stiffness of the structure and the mass which participates with the structure (including self-weight).